def build_camera(self, camera_type='single'):
IMAGE_W = self.cfg.IMAGE_W
IMAGE_H = self.cfg.IMAGE_H
IMAGE_DEPTH = self.cfg.IMAGE_DEPTH
print("cfg.CAMERA_TYPE", self.cfg.CAMERA_TYPE)
if camera_type == "stereo":
if self.cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
camA = Webcam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=0)
camB = Webcam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=1)
elif self.cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
camA = CvCam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=0)
camB = CvCam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=1)
else:
raise (Exception("Unsupported camera type: %s" %
self.cfg.CAMERA_TYPE))
self.vehicle.add(camA,
outputs=['cam/image_array_a'],
threaded=True)
self.vehicle.add(camB,
outputs=['cam/image_array_b'],
threaded=True)
from donkeycar.parts.image import StereoPair
self.vehicle.add(StereoPair(),
inputs=['cam/image_array_a', 'cam/image_array_b'],
outputs=['cam/image_array'])
else:
inputs = []
outputs = ['cam/image_array']
threaded = True
if self.cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
gym_conf = self.cfg.GYM_CONF.copy()
cam_conf = {
'img_h': self.cfg.IMAGE_H,
'img_w': self.cfg.IMAGE_W,
'img_d': self.cfg.IMAGE_DEPTH
}
gym_conf["cam_config"] = cam_conf
gym_conf["cam_resolution"] = (self.cfg.IMAGE_H,
self.cfg.IMAGE_W,
self.cfg.IMAGE_DEPTH)
cam = DonkeyGymEnv(
self.cfg.DONKEY_SIM_PATH,
env_name=self.cfg.DONKEY_GYM_ENV_NAME,
host=self.cfg.SIM_HOST,
conf=gym_conf,
record_location=self.cfg.SIM_RECORD_LOCATION)
#start_sim=self.cfg.DONKEY_GYM_START,
#return_info=self.cfg.DONKEY_GYM_INFO,
#reset=self.cfg.DONKEY_GYM_RESET)
threaded = True
inputs = ['angle', 'throttle']
if self.cfg.SIM_RECORD_LOCATION:
outputs += [
'pos/pos_x', 'pos/pos_y', 'pos/pos_z', 'pos/speed',
'pos/cte'
]
if self.cfg.SIM_RECORD_GYROACCEL:
outputs += [
'gyro/gyro_x', 'gyro/gyro_y', 'gyro/gyro_z',
'accel/accel_x', 'accel/accel_y', 'accel/accel_z'
]
if self.cfg.SIM_RECORD_VELOCITY:
outputs += ['vel/vel_x', 'vel/vel_y', 'vel/vel_z']
if self.cfg.SIM_RECORD_LIDAR:
outputs += ['lidar/dist_array']
elif self.cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
cam = PiCamera(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
elif self.cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
elif self.cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
elif self.cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(
image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
framerate=self.cfg.CAMERA_FRAMERATE,
gstreamer_flip=self.cfg.CSIC_CAM_GSTREAMER_FLIP_PARM)
elif self.cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
framerate=self.cfg.CAMERA_FRAMERATE)
elif self.cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
else:
raise (Exception("Unkown camera type: %s" %
self.cfg.CAMERA_TYPE))
self.vehicle.add(cam,
inputs=inputs,
outputs=outputs,
threaded=threaded)
def drive(cfg,
model_path=None,
use_joystick=False,
model_type=None,
camera_type='single',
meta=[]):
'''
Construct a working robotic vehicle from many parts.
Each part runs as a job in the Vehicle loop, calling either
it's run or run_threaded method depending on the constructor flag `threaded`.
All parts are updated one after another at the framerate given in
cfg.DRIVE_LOOP_HZ assuming each part finishes processing in a timely manner.
Parts may have named outputs and inputs. The framework handles passing named outputs
to parts requesting the same named input.
'''
if cfg.DONKEY_GYM:
#the simulator will use cuda and then we usually run out of resources
#if we also try to use cuda. so disable for donkey_gym.
os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
if model_type is None:
if cfg.TRAIN_LOCALIZER:
model_type = "localizer"
elif cfg.TRAIN_BEHAVIORS:
model_type = "behavior"
else:
model_type = cfg.DEFAULT_MODEL_TYPE
#Initialize car
V = dk.vehicle.Vehicle()
if camera_type == "stereo":
if cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
camA = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=0)
camB = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=1)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
camA = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=0)
camB = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=1)
else:
raise (Exception("Unsupported camera type: %s" % cfg.CAMERA_TYPE))
V.add(camA, outputs=['cam/image_array_a'], threaded=True)
V.add(camB, outputs=['cam/image_array_b'], threaded=True)
from donkeycar.parts.image import StereoPair
V.add(StereoPair(),
inputs=['cam/image_array_a', 'cam/image_array_b'],
outputs=['cam/image_array'])
else:
inputs = []
threaded = True
print("cfg.CAMERA_TYPE", cfg.CAMERA_TYPE)
if cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
cam = DonkeyGymEnv(cfg.DONKEY_SIM_PATH,
env_name=cfg.DONKEY_GYM_ENV_NAME)
threaded = True
inputs = ['angle', 'throttle']
elif cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
cam = PiCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
else:
raise (Exception("Unkown camera type: %s" % cfg.CAMERA_TYPE))
V.add(cam,
inputs=inputs,
outputs=['cam/image_array'],
threaded=threaded)
if use_joystick or cfg.USE_JOYSTICK_AS_DEFAULT:
#modify max_throttle closer to 1.0 to have more power
#modify steering_scale lower than 1.0 to have less responsive steering
from donkeycar.parts.controller import get_js_controller
ctr = get_js_controller(cfg)
ctr = PS3JoystickController(
throttle_scale=cfg.JOYSTICK_MAX_THROTTLE,
steering_scale=cfg.JOYSTICK_STEERING_SCALE,
auto_record_on_throttle=cfg.AUTO_RECORD_ON_THROTTLE)
if cfg.USE_NETWORKED_JS:
from donkeycar.parts.controller import JoyStickSub
netwkJs = JoyStickSub(cfg.NETWORK_JS_SERVER_IP)
V.add(netwkJs, threaded=True)
ctr.js = netwkJs
else:
#This web controller will create a web server that is capable
#of managing steering, throttle, and modes, and more.
ctr = LocalWebController()
V.add(ctr,
inputs=['cam/image_array'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
#this throttle filter will allow one tap back for esc reverse
th_filter = ThrottleFilter()
V.add(th_filter, inputs=['user/throttle'], outputs=['user/throttle'])
#See if we should even run the pilot module.
#This is only needed because the part run_condition only accepts boolean
class PilotCondition:
def run(self, mode):
if mode == 'user':
return False
else:
return True
V.add(PilotCondition(), inputs=['user/mode'], outputs=['run_pilot'])
class LedConditionLogic:
def __init__(self, cfg):
self.cfg = cfg
def run(self, mode, recording, recording_alert, behavior_state,
model_file_changed, track_loc):
#returns a blink rate. 0 for off. -1 for on. positive for rate.
if track_loc is not None:
led.set_rgb(*self.cfg.LOC_COLORS[track_loc])
return -1
if model_file_changed:
led.set_rgb(self.cfg.MODEL_RELOADED_LED_R,
self.cfg.MODEL_RELOADED_LED_G,
self.cfg.MODEL_RELOADED_LED_B)
return 0.1
else:
led.set_rgb(self.cfg.LED_R, self.cfg.LED_G, self.cfg.LED_B)
if recording_alert:
led.set_rgb(*recording_alert)
return self.cfg.REC_COUNT_ALERT_BLINK_RATE
else:
led.set_rgb(self.cfg.LED_R, self.cfg.LED_G, self.cfg.LED_B)
if behavior_state is not None and model_type == 'behavior':
r, g, b = self.cfg.BEHAVIOR_LED_COLORS[behavior_state]
led.set_rgb(r, g, b)
return -1 #solid on
if recording:
return -1 #solid on
elif mode == 'user':
return 1
elif mode == 'local_angle':
return 0.5
elif mode == 'local':
return 0.1
return 0
if cfg.HAVE_RGB_LED and not cfg.DONKEY_GYM:
from donkeycar.parts.led_status import RGB_LED
led = RGB_LED(cfg.LED_PIN_R, cfg.LED_PIN_G, cfg.LED_PIN_B,
cfg.LED_INVERT)
led.set_rgb(cfg.LED_R, cfg.LED_G, cfg.LED_B)
V.add(LedConditionLogic(cfg),
inputs=[
'user/mode', 'recording', "records/alert", 'behavior/state',
'modelfile/modified', "pilot/loc"
],
outputs=['led/blink_rate'])
V.add(led, inputs=['led/blink_rate'])
def get_record_alert_color(num_records):
col = (0, 0, 0)
for count, color in cfg.RECORD_ALERT_COLOR_ARR:
if num_records >= count:
col = color
return col
class RecordTracker:
def __init__(self):
self.last_num_rec_print = 0
self.dur_alert = 0
self.force_alert = 0
def run(self, num_records):
if num_records is None:
return 0
if self.last_num_rec_print != num_records or self.force_alert:
self.last_num_rec_print = num_records
if num_records % 10 == 0:
print("recorded", num_records, "records")
if num_records % cfg.REC_COUNT_ALERT == 0 or self.force_alert:
self.dur_alert = num_records // cfg.REC_COUNT_ALERT * cfg.REC_COUNT_ALERT_CYC
self.force_alert = 0
if self.dur_alert > 0:
self.dur_alert -= 1
if self.dur_alert != 0:
return get_record_alert_color(num_records)
return 0
rec_tracker_part = RecordTracker()
V.add(rec_tracker_part,
inputs=["tub/num_records"],
outputs=['records/alert'])
if cfg.AUTO_RECORD_ON_THROTTLE and isinstance(ctr, JoystickController):
#then we are not using the circle button. hijack that to force a record count indication
def show_record_acount_status():
rec_tracker_part.last_num_rec_print = 0
rec_tracker_part.force_alert = 1
ctr.set_button_down_trigger('circle', show_record_acount_status)
#Sombrero
if cfg.HAVE_SOMBRERO:
from donkeycar.parts.sombrero import Sombrero
s = Sombrero()
#IMU
if cfg.HAVE_IMU:
from donkeycar.parts.imu import Mpu6050
imu = Mpu6050()
V.add(imu,
outputs=[
'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x',
'imu/gyr_y', 'imu/gyr_z'
],
threaded=True)
#Behavioral state
if cfg.TRAIN_BEHAVIORS:
bh = BehaviorPart(cfg.BEHAVIOR_LIST)
V.add(bh,
outputs=[
'behavior/state', 'behavior/label',
"behavior/one_hot_state_array"
])
try:
ctr.set_button_down_trigger('L1', bh.increment_state)
except:
pass
inputs = ['cam/image_array', "behavior/one_hot_state_array"]
#IMU
elif model_type == "imu":
assert (cfg.HAVE_IMU)
#Run the pilot if the mode is not user.
inputs = [
'cam/image_array', 'imu/acl_x', 'imu/acl_y', 'imu/acl_z',
'imu/gyr_x', 'imu/gyr_y', 'imu/gyr_z'
]
else:
inputs = ['cam/image_array']
def load_model(kl, model_path):
start = time.time()
try:
print('loading model', model_path)
kl.load(model_path)
print('finished loading in %s sec.' % (str(time.time() - start)))
except Exception as e:
print(e)
print('ERR>> problems loading model', model_path)
def load_weights(kl, weights_path):
start = time.time()
try:
print('loading model weights', weights_path)
kl.model.load_weights(weights_path)
print('finished loading in %s sec.' % (str(time.time() - start)))
except Exception as e:
print(e)
print('ERR>> problems loading weights', weights_path)
def load_model_json(kl, json_fnm):
start = time.time()
print('loading model json', json_fnm)
from tensorflow.python import keras
try:
with open(json_fnm, 'r') as handle:
contents = handle.read()
kl.model = keras.models.model_from_json(contents)
print('finished loading json in %s sec.' %
(str(time.time() - start)))
except Exception as e:
print(e)
print("ERR>> problems loading model json", json_fnm)
if model_path:
#When we have a model, first create an appropriate Keras part
kl = dk.utils.get_model_by_type(model_type, cfg)
model_reload_cb = None
if '.h5' in model_path:
#when we have a .h5 extension
#load everything from the model file
load_model(kl, model_path)
def reload_model(filename):
load_model(kl, filename)
model_reload_cb = reload_model
elif '.json' in model_path:
#when we have a .json extension
#load the model from there and look for a matching
#.wts file with just weights
load_model_json(kl, model_path)
weights_path = model_path.replace('.json', '.weights')
load_weights(kl, weights_path)
def reload_weights(filename):
weights_path = filename.replace('.json', '.weights')
load_weights(kl, weights_path)
model_reload_cb = reload_weights
else:
print("ERR>> Unknown extension type on model file!!")
return
#this part will signal visual LED, if connected
V.add(FileWatcher(model_path, verbose=True),
outputs=['modelfile/modified'])
#these parts will reload the model file, but only when ai is running so we don't interrupt user driving
V.add(FileWatcher(model_path),
outputs=['modelfile/dirty'],
run_condition="ai_running")
V.add(DelayedTrigger(100),
inputs=['modelfile/dirty'],
outputs=['modelfile/reload'],
run_condition="ai_running")
V.add(TriggeredCallback(model_path, model_reload_cb),
inputs=["modelfile/reload"],
run_condition="ai_running")
outputs = ['pilot/angle', 'pilot/throttle']
if cfg.TRAIN_LOCALIZER:
outputs.append("pilot/loc")
V.add(kl, inputs=inputs, outputs=outputs, run_condition='run_pilot')
#Choose what inputs should change the car.
class DriveMode:
def run(self, mode, user_angle, user_throttle, pilot_angle,
pilot_throttle):
if mode == 'user':
return user_angle, user_throttle
elif mode == 'local_angle':
return pilot_angle, user_throttle
else:
return pilot_angle, pilot_throttle * cfg.AI_THROTTLE_MULT
V.add(DriveMode(),
inputs=[
'user/mode', 'user/angle', 'user/throttle', 'pilot/angle',
'pilot/throttle'
],
outputs=['angle', 'throttle'])
#to give the car a boost when starting ai mode in a race.
aiLauncher = AiLaunch(cfg.AI_LAUNCH_DURATION, cfg.AI_LAUNCH_THROTTLE,
cfg.AI_LAUNCH_KEEP_ENABLED)
V.add(aiLauncher, inputs=['user/mode', 'throttle'], outputs=['throttle'])
if isinstance(ctr, JoystickController):
ctr.set_button_down_trigger(cfg.AI_LAUNCH_ENABLE_BUTTON,
aiLauncher.enable_ai_launch)
class AiRunCondition:
'''
A bool part to let us know when ai is running.
'''
def run(self, mode):
if mode == "user":
return False
return True
V.add(AiRunCondition(), inputs=['user/mode'], outputs=['ai_running'])
#Ai Recording
class AiRecordingCondition:
'''
return True when ai mode, otherwize respect user mode recording flag
'''
def run(self, mode, recording):
if mode == 'user':
return recording
return True
if cfg.RECORD_DURING_AI:
V.add(AiRecordingCondition(),
inputs=['user/mode', 'recording'],
outputs=['recording'])
#Drive train setup
if cfg.DONKEY_GYM:
pass
elif cfg.DRIVE_TRAIN_TYPE == "SERVO_ESC":
from donkeycar.parts.actuator import PCA9685, PWMSteering, PWMThrottle
steering_controller = PCA9685(cfg.STEERING_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PCA9685(cfg.THROTTLE_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
V.add(steering, inputs=['angle'])
V.add(throttle, inputs=['throttle'])
elif cfg.DRIVE_TRAIN_TYPE == "DC_STEER_THROTTLE":
from donkeycar.parts.actuator import Mini_HBridge_DC_Motor_PWM
steering = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_LEFT,
cfg.HBRIDGE_PIN_RIGHT)
throttle = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_FWD,
cfg.HBRIDGE_PIN_BWD)
V.add(steering, inputs=['angle'])
V.add(throttle, inputs=['throttle'])
elif cfg.DRIVE_TRAIN_TYPE == "DC_TWO_WHEEL":
from donkeycar.parts.actuator import TwoWheelSteeringThrottle, Mini_HBridge_DC_Motor_PWM
left_motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_LEFT_FWD,
cfg.HBRIDGE_PIN_LEFT_BWD)
right_motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_RIGHT_FWD,
cfg.HBRIDGE_PIN_RIGHT_BWD)
two_wheel_control = TwoWheelSteeringThrottle()
V.add(two_wheel_control,
inputs=['throttle', 'angle'],
outputs=['left_motor_speed', 'right_motor_speed'])
V.add(left_motor, inputs=['left_motor_speed'])
V.add(right_motor, inputs=['right_motor_speed'])
elif cfg.DRIVE_TRAIN_TYPE == "SERVO_HBRIDGE_PWM":
from donkeycar.parts.actuator import ServoBlaster, PWMSteering
steering_controller = ServoBlaster(cfg.STEERING_CHANNEL) #really pin
#PWM pulse values should be in the range of 100 to 200
assert (cfg.STEERING_LEFT_PWM <= 200)
assert (cfg.STEERING_RIGHT_PWM <= 200)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
from donkeycar.parts.actuator import Mini_HBridge_DC_Motor_PWM
motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_FWD,
cfg.HBRIDGE_PIN_BWD)
V.add(steering, inputs=['angle'])
V.add(motor, inputs=["throttle"])
#add tub to save data
inputs = ['cam/image_array', 'user/angle', 'user/throttle', 'user/mode']
types = ['image_array', 'float', 'float', 'str']
if cfg.TRAIN_BEHAVIORS:
inputs += [
'behavior/state', 'behavior/label', "behavior/one_hot_state_array"
]
types += ['int', 'str', 'vector']
if cfg.HAVE_IMU:
inputs += [
'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x', 'imu/gyr_y',
'imu/gyr_z'
]
types += ['float', 'float', 'float', 'float', 'float', 'float']
if cfg.RECORD_DURING_AI:
inputs += ['pilot/angle', 'pilot/throttle']
types += ['float', 'float']
th = TubHandler(path=cfg.DATA_PATH)
tub = th.new_tub_writer(inputs=inputs, types=types, user_meta=meta)
V.add(tub,
inputs=inputs,
outputs=["tub/num_records"],
run_condition='recording')
if cfg.PUB_CAMERA_IMAGES:
from donkeycar.parts.network import TCPServeValue
from donkeycar.parts.image import ImgArrToJpg
pub = TCPServeValue("camera")
V.add(ImgArrToJpg(), inputs=['cam/image_array'], outputs=['jpg/bin'])
V.add(pub, inputs=['jpg/bin'])
if type(ctr) is LocalWebController:
print("You can now go to <your pi ip address>:8887 to drive your car.")
elif isinstance(ctr, JoystickController):
print("You can now move your joystick to drive your car.")
#tell the controller about the tub
ctr.set_tub(tub)
if cfg.BUTTON_PRESS_NEW_TUB:
def new_tub_dir():
V.parts.pop()
tub = th.new_tub_writer(inputs=inputs,
types=types,
user_meta=meta)
V.add(tub,
inputs=inputs,
outputs=["tub/num_records"],
run_condition='recording')
ctr.set_tub(tub)
ctr.set_button_down_trigger('cross', new_tub_dir)
ctr.print_controls()
#run the vehicle for 20 seconds
V.start(rate_hz=cfg.DRIVE_LOOP_HZ, max_loop_count=cfg.MAX_LOOPS)
from donkeycar.parts.dgym import DonkeyGymEnv
cam = DonkeyGymEnv(cfg.DONKEY_SIM_PATH, env_name=cfg.DONKEY_GYM_ENV_NAME)
threaded = True
inputs = ['angle', 'throttle']
elif cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
cam = PiCamera(image_w=cfg.IMAGE_W, image_h=cfg.IMAGE_H, image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=cfg.IMAGE_W, image_h=cfg.IMAGE_H, image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=cfg.IMAGE_W, image_h=cfg.IMAGE_H, image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(image_w=cfg.IMAGE_W, image_h=cfg.IMAGE_H, image_d=cfg.IMAGE_DEPTH, framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=cfg.IMAGE_W, image_h=cfg.IMAGE_H, image_d=cfg.IMAGE_DEPTH, framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=cfg.IMAGE_W, image_h=cfg.IMAGE_H, image_d=cfg.IMAGE_DEPTH)
else:
raise(Exception("Unkown camera type: %s" % cfg.CAMERA_TYPE))
V.add(cam, inputs=inputs, outputs=['cam/image_array'], threaded=threaded)
if use_joystick or cfg.USE_JOYSTICK_AS_DEFAULT:
#modify max_throttle closer to 1.0 to have more power
#modify steering_scale lower than 1.0 to have less responsive steering
from donkeycar.parts.controller import get_js_controller
def drive(cfg,
model_path=None,
use_joystick=False,
model_type=None,
camera_type='single',
meta=[]):
'''
Construct a working robotic vehicle from many parts.
Each part runs as a job in the Vehicle loop, calling either
it's run or run_threaded method depending on the constructor flag `threaded`.
All parts are updated one after another at the framerate given in
cfg.DRIVE_LOOP_HZ assuming each part finishes processing in a timely manner.
Parts may have named outputs and inputs. The framework handles passing named outputs
to parts requesting the same named input.
'''
if cfg.DONKEY_GYM:
#the simulator will use cuda and then we usually run out of resources
#if we also try to use cuda. so disable for donkey_gym.
os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
if model_type is None:
if cfg.TRAIN_LOCALIZER:
model_type = "localizer"
elif cfg.TRAIN_BEHAVIORS:
model_type = "behavior"
else:
model_type = cfg.DEFAULT_MODEL_TYPE
#Initialize car
V = dk.vehicle.Vehicle()
#Initialize logging before anything else to allow console logging
if cfg.HAVE_CONSOLE_LOGGING:
logger.setLevel(logging.getLevelName(cfg.LOGGING_LEVEL))
ch = logging.StreamHandler()
ch.setFormatter(logging.Formatter(cfg.LOGGING_FORMAT))
logger.addHandler(ch)
if cfg.HAVE_MQTT_TELEMETRY:
from donkeycar.parts.telemetry import MqttTelemetry
tel = MqttTelemetry(cfg)
logger.info("cfg.CAMERA_TYPE %s" % cfg.CAMERA_TYPE)
if camera_type == "stereo":
if cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
camA = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=0)
camB = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=1)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
camA = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=0)
camB = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=1)
else:
raise (Exception("Unsupported camera type: %s" % cfg.CAMERA_TYPE))
V.add(camA, outputs=['cam/image_array_a'], threaded=True)
V.add(camB, outputs=['cam/image_array_b'], threaded=True)
from donkeycar.parts.image import StereoPair
V.add(StereoPair(),
inputs=['cam/image_array_a', 'cam/image_array_b'],
outputs=['cam/image_array'])
elif cfg.CAMERA_TYPE == "D435":
from donkeycar.parts.realsense435i import RealSense435i
cam = RealSense435i(enable_rgb=cfg.REALSENSE_D435_RGB,
enable_depth=cfg.REALSENSE_D435_DEPTH,
enable_imu=cfg.REALSENSE_D435_IMU,
device_id=cfg.REALSENSE_D435_ID)
V.add(cam,
inputs=[],
outputs=[
'cam/image_array', 'cam/depth_array', 'imu/acl_x',
'imu/acl_y', 'imu/acl_z', 'imu/gyr_x', 'imu/gyr_y',
'imu/gyr_z'
],
threaded=True)
else:
if cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
inputs = []
threaded = True
if cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
cam = DonkeyGymEnv(cfg.DONKEY_SIM_PATH,
host=cfg.SIM_HOST,
env_name=cfg.DONKEY_GYM_ENV_NAME,
conf=cfg.GYM_CONF,
delay=cfg.SIM_ARTIFICIAL_LATENCY)
threaded = True
inputs = ['angle', 'throttle']
elif cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
cam = PiCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE,
vflip=cfg.CAMERA_VFLIP,
hflip=cfg.CAMERA_HFLIP)
elif cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE,
gstreamer_flip=cfg.CSIC_CAM_GSTREAMER_FLIP_PARM)
elif cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "IMAGE_LIST":
from donkeycar.parts.camera import ImageListCamera
cam = ImageListCamera(path_mask=cfg.PATH_MASK)
elif cfg.CAMERA_TYPE == "LEOPARD":
from donkeycar.parts.leopard_imaging import LICamera
cam = LICamera(width=cfg.IMAGE_W,
height=cfg.IMAGE_H,
fps=cfg.CAMERA_FRAMERATE)
else:
raise (Exception("Unkown camera type: %s" % cfg.CAMERA_TYPE))
V.add(cam,
inputs=inputs,
outputs=['cam/image_array'],
threaded=threaded)
if use_joystick or cfg.USE_JOYSTICK_AS_DEFAULT:
#modify max_throttle closer to 1.0 to have more power
#modify steering_scale lower than 1.0 to have less responsive steering
if cfg.CONTROLLER_TYPE == "MM1":
from donkeycar.parts.robohat import RoboHATController
ctr = RoboHATController(cfg)
elif "custom" == cfg.CONTROLLER_TYPE:
#
# custom controller created with `donkey createjs` command
#
from my_joystick import MyJoystickController
ctr = MyJoystickController(
throttle_dir=cfg.JOYSTICK_THROTTLE_DIR,
throttle_scale=cfg.JOYSTICK_MAX_THROTTLE,
steering_scale=cfg.JOYSTICK_STEERING_SCALE,
auto_record_on_throttle=cfg.AUTO_RECORD_ON_THROTTLE)
ctr.set_deadzone(cfg.JOYSTICK_DEADZONE)
else:
from donkeycar.parts.controller import get_js_controller
ctr = get_js_controller(cfg)
if cfg.USE_NETWORKED_JS:
from donkeycar.parts.controller import JoyStickSub
netwkJs = JoyStickSub(cfg.NETWORK_JS_SERVER_IP)
V.add(netwkJs, threaded=True)
ctr.js = netwkJs
V.add(
ctr,
inputs=['cam/image_array'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
else:
#This web controller will create a web server that is capable
#of managing steering, throttle, and modes, and more.
ctr = LocalWebController(port=cfg.WEB_CONTROL_PORT,
mode=cfg.WEB_INIT_MODE)
V.add(
ctr,
inputs=['cam/image_array', 'tub/num_records'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
#this throttle filter will allow one tap back for esc reverse
th_filter = ThrottleFilter()
V.add(th_filter, inputs=['user/throttle'], outputs=['user/throttle'])
#See if we should even run the pilot module.
#This is only needed because the part run_condition only accepts boolean
class PilotCondition:
def run(self, mode):
if mode == 'user':
return False
else:
return True
V.add(PilotCondition(), inputs=['user/mode'], outputs=['run_pilot'])
class LedConditionLogic:
def __init__(self, cfg):
self.cfg = cfg
def run(self, mode, recording, recording_alert, behavior_state,
model_file_changed, track_loc):
#returns a blink rate. 0 for off. -1 for on. positive for rate.
if track_loc is not None:
led.set_rgb(*self.cfg.LOC_COLORS[track_loc])
return -1
if model_file_changed:
led.set_rgb(self.cfg.MODEL_RELOADED_LED_R,
self.cfg.MODEL_RELOADED_LED_G,
self.cfg.MODEL_RELOADED_LED_B)
return 0.1
else:
led.set_rgb(self.cfg.LED_R, self.cfg.LED_G, self.cfg.LED_B)
if recording_alert:
led.set_rgb(*recording_alert)
return self.cfg.REC_COUNT_ALERT_BLINK_RATE
else:
led.set_rgb(self.cfg.LED_R, self.cfg.LED_G, self.cfg.LED_B)
if behavior_state is not None and model_type == 'behavior':
r, g, b = self.cfg.BEHAVIOR_LED_COLORS[behavior_state]
led.set_rgb(r, g, b)
return -1 #solid on
if recording:
return -1 #solid on
elif mode == 'user':
return 1
elif mode == 'local_angle':
return 0.5
elif mode == 'local':
return 0.1
return 0
if cfg.HAVE_RGB_LED and not cfg.DONKEY_GYM:
from donkeycar.parts.led_status import RGB_LED
led = RGB_LED(cfg.LED_PIN_R, cfg.LED_PIN_G, cfg.LED_PIN_B,
cfg.LED_INVERT)
led.set_rgb(cfg.LED_R, cfg.LED_G, cfg.LED_B)
V.add(LedConditionLogic(cfg),
inputs=[
'user/mode', 'recording', "records/alert", 'behavior/state',
'modelfile/modified', "pilot/loc"
],
outputs=['led/blink_rate'])
V.add(led, inputs=['led/blink_rate'])
def get_record_alert_color(num_records):
col = (0, 0, 0)
for count, color in cfg.RECORD_ALERT_COLOR_ARR:
if num_records >= count:
col = color
return col
class RecordTracker:
def __init__(self):
self.last_num_rec_print = 0
self.dur_alert = 0
self.force_alert = 0
def run(self, num_records):
if num_records is None:
return 0
if self.last_num_rec_print != num_records or self.force_alert:
self.last_num_rec_print = num_records
if num_records % 10 == 0:
print("recorded", num_records, "records")
if num_records % cfg.REC_COUNT_ALERT == 0 or self.force_alert:
self.dur_alert = num_records // cfg.REC_COUNT_ALERT * cfg.REC_COUNT_ALERT_CYC
self.force_alert = 0
if self.dur_alert > 0:
self.dur_alert -= 1
if self.dur_alert != 0:
return get_record_alert_color(num_records)
return 0
rec_tracker_part = RecordTracker()
V.add(rec_tracker_part,
inputs=["tub/num_records"],
outputs=['records/alert'])
if cfg.AUTO_RECORD_ON_THROTTLE and isinstance(ctr, JoystickController):
#then we are not using the circle button. hijack that to force a record count indication
def show_record_acount_status():
rec_tracker_part.last_num_rec_print = 0
rec_tracker_part.force_alert = 1
ctr.set_button_down_trigger('circle', show_record_acount_status)
#Sombrero
if cfg.HAVE_SOMBRERO:
from donkeycar.parts.sombrero import Sombrero
s = Sombrero()
#IMU
if cfg.HAVE_IMU:
from donkeycar.parts.imu import IMU
imu = IMU(sensor=cfg.IMU_SENSOR, dlp_setting=cfg.IMU_DLP_CONFIG)
V.add(imu,
outputs=[
'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x',
'imu/gyr_y', 'imu/gyr_z'
],
threaded=True)
# Use the FPV preview, which will show the cropped image output, or the full frame.
if cfg.USE_FPV:
V.add(WebFpv(), inputs=['cam/image_array'], threaded=True)
#Behavioral state
if cfg.TRAIN_BEHAVIORS:
bh = BehaviorPart(cfg.BEHAVIOR_LIST)
V.add(bh,
outputs=[
'behavior/state', 'behavior/label',
"behavior/one_hot_state_array"
])
try:
ctr.set_button_down_trigger('L1', bh.increment_state)
except:
pass
inputs = ['cam/image_array', "behavior/one_hot_state_array"]
#IMU
elif model_type == "imu":
assert (cfg.HAVE_IMU)
#Run the pilot if the mode is not user.
inputs = [
'cam/image_array', 'imu/acl_x', 'imu/acl_y', 'imu/acl_z',
'imu/gyr_x', 'imu/gyr_y', 'imu/gyr_z'
]
else:
inputs = ['cam/image_array']
def load_model(kl, model_path):
start = time.time()
print('loading model', model_path)
kl.load(model_path)
print('finished loading in %s sec.' % (str(time.time() - start)))
def load_weights(kl, weights_path):
start = time.time()
try:
print('loading model weights', weights_path)
kl.model.load_weights(weights_path)
print('finished loading in %s sec.' % (str(time.time() - start)))
except Exception as e:
print(e)
print('ERR>> problems loading weights', weights_path)
def load_model_json(kl, json_fnm):
start = time.time()
print('loading model json', json_fnm)
from tensorflow.python import keras
try:
with open(json_fnm, 'r') as handle:
contents = handle.read()
kl.model = keras.models.model_from_json(contents)
print('finished loading json in %s sec.' %
(str(time.time() - start)))
except Exception as e:
print(e)
print("ERR>> problems loading model json", json_fnm)
if model_path:
#When we have a model, first create an appropriate Keras part
kl = dk.utils.get_model_by_type(model_type, cfg)
model_reload_cb = None
if '.h5' in model_path or '.uff' in model_path or 'tflite' in model_path or '.pkl' in model_path:
#when we have a .h5 extension
#load everything from the model file
load_model(kl, model_path)
def reload_model(filename):
load_model(kl, filename)
model_reload_cb = reload_model
elif '.json' in model_path:
#when we have a .json extension
#load the model from there and look for a matching
#.wts file with just weights
load_model_json(kl, model_path)
weights_path = model_path.replace('.json', '.weights')
load_weights(kl, weights_path)
def reload_weights(filename):
weights_path = filename.replace('.json', '.weights')
load_weights(kl, weights_path)
model_reload_cb = reload_weights
else:
print("ERR>> Unknown extension type on model file!!")
return
#this part will signal visual LED, if connected
V.add(FileWatcher(model_path, verbose=True),
outputs=['modelfile/modified'])
#these parts will reload the model file, but only when ai is running so we don't interrupt user driving
V.add(FileWatcher(model_path),
outputs=['modelfile/dirty'],
run_condition="ai_running")
V.add(DelayedTrigger(100),
inputs=['modelfile/dirty'],
outputs=['modelfile/reload'],
run_condition="ai_running")
V.add(TriggeredCallback(model_path, model_reload_cb),
inputs=["modelfile/reload"],
run_condition="ai_running")
outputs = ['pilot/angle', 'pilot/throttle']
if cfg.TRAIN_LOCALIZER:
outputs.append("pilot/loc")
V.add(kl, inputs=inputs, outputs=outputs, run_condition='run_pilot')
if cfg.STOP_SIGN_DETECTOR:
from donkeycar.parts.object_detector.stop_sign_detector import StopSignDetector
V.add(StopSignDetector(cfg.STOP_SIGN_MIN_SCORE,
cfg.STOP_SIGN_SHOW_BOUNDING_BOX),
inputs=['cam/image_array', 'pilot/throttle'],
outputs=['pilot/throttle', 'cam/image_array'])
#Choose what inputs should change the car.
class DriveMode:
def run(self, mode, user_angle, user_throttle, pilot_angle,
pilot_throttle):
if mode == 'user':
return user_angle, user_throttle
elif mode == 'local_angle':
return pilot_angle if pilot_angle else 0.0, user_throttle
else:
return pilot_angle if pilot_angle else 0.0, pilot_throttle * cfg.AI_THROTTLE_MULT if pilot_throttle else 0.0
V.add(DriveMode(),
inputs=[
'user/mode', 'user/angle', 'user/throttle', 'pilot/angle',
'pilot/throttle'
],
outputs=['angle', 'throttle'])
#to give the car a boost when starting ai mode in a race.
aiLauncher = AiLaunch(cfg.AI_LAUNCH_DURATION, cfg.AI_LAUNCH_THROTTLE,
cfg.AI_LAUNCH_KEEP_ENABLED)
V.add(aiLauncher, inputs=['user/mode', 'throttle'], outputs=['throttle'])
if isinstance(ctr, JoystickController):
ctr.set_button_down_trigger(cfg.AI_LAUNCH_ENABLE_BUTTON,
aiLauncher.enable_ai_launch)
class AiRunCondition:
'''
A bool part to let us know when ai is running.
'''
def run(self, mode):
if mode == "user":
return False
return True
V.add(AiRunCondition(), inputs=['user/mode'], outputs=['ai_running'])
#Ai Recording
class AiRecordingCondition:
'''
return True when ai mode, otherwize respect user mode recording flag
'''
def run(self, mode, recording):
if mode == 'user':
return recording
return True
if cfg.RECORD_DURING_AI:
V.add(AiRecordingCondition(),
inputs=['user/mode', 'recording'],
outputs=['recording'])
#Drive train setup
if cfg.DONKEY_GYM or cfg.DRIVE_TRAIN_TYPE == "MOCK":
pass
elif cfg.DRIVE_TRAIN_TYPE == "SERVO_ESC":
from donkeycar.parts.actuator import PCA9685, PWMSteering, PWMThrottle
steering_controller = PCA9685(cfg.STEERING_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PCA9685(cfg.THROTTLE_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
V.add(steering, inputs=['angle'], threaded=True)
V.add(throttle, inputs=['throttle'], threaded=True)
elif cfg.DRIVE_TRAIN_TYPE == "DC_STEER_THROTTLE":
from donkeycar.parts.actuator import Mini_HBridge_DC_Motor_PWM
steering = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_LEFT,
cfg.HBRIDGE_PIN_RIGHT)
throttle = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_FWD,
cfg.HBRIDGE_PIN_BWD)
V.add(steering, inputs=['angle'])
V.add(throttle, inputs=['throttle'])
elif cfg.DRIVE_TRAIN_TYPE == "DC_TWO_WHEEL":
from donkeycar.parts.actuator import TwoWheelSteeringThrottle, Mini_HBridge_DC_Motor_PWM
left_motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_LEFT_FWD,
cfg.HBRIDGE_PIN_LEFT_BWD)
right_motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_RIGHT_FWD,
cfg.HBRIDGE_PIN_RIGHT_BWD)
two_wheel_control = TwoWheelSteeringThrottle()
V.add(two_wheel_control,
inputs=['throttle', 'angle'],
outputs=['left_motor_speed', 'right_motor_speed'])
V.add(left_motor, inputs=['left_motor_speed'])
V.add(right_motor, inputs=['right_motor_speed'])
elif cfg.DRIVE_TRAIN_TYPE == "SERVO_HBRIDGE_PWM":
from donkeycar.parts.actuator import ServoBlaster, PWMSteering
steering_controller = ServoBlaster(cfg.STEERING_CHANNEL) #really pin
#PWM pulse values should be in the range of 100 to 200
assert (cfg.STEERING_LEFT_PWM <= 200)
assert (cfg.STEERING_RIGHT_PWM <= 200)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
from donkeycar.parts.actuator import Mini_HBridge_DC_Motor_PWM
motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_FWD,
cfg.HBRIDGE_PIN_BWD)
V.add(steering, inputs=['angle'], threaded=True)
V.add(motor, inputs=["throttle"])
elif cfg.DRIVE_TRAIN_TYPE == "MM1":
from donkeycar.parts.robohat import RoboHATDriver
V.add(RoboHATDriver(cfg), inputs=['angle', 'throttle'])
elif cfg.DRIVE_TRAIN_TYPE == "PIGPIO_PWM":
from donkeycar.parts.actuator import PWMSteering, PWMThrottle, PiGPIO_PWM
steering_controller = PiGPIO_PWM(cfg.STEERING_PWM_PIN,
freq=cfg.STEERING_PWM_FREQ,
inverted=cfg.STEERING_PWM_INVERTED)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PiGPIO_PWM(cfg.THROTTLE_PWM_PIN,
freq=cfg.THROTTLE_PWM_FREQ,
inverted=cfg.THROTTLE_PWM_INVERTED)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
V.add(steering, inputs=['angle'], threaded=True)
V.add(throttle, inputs=['throttle'], threaded=True)
# OLED setup
if cfg.USE_SSD1306_128_32:
from donkeycar.parts.oled import OLEDPart
auto_record_on_throttle = cfg.USE_JOYSTICK_AS_DEFAULT and cfg.AUTO_RECORD_ON_THROTTLE
oled_part = OLEDPart(cfg.SSD1306_128_32_I2C_BUSNUM,
auto_record_on_throttle=auto_record_on_throttle)
V.add(oled_part,
inputs=['recording', 'tub/num_records', 'user/mode'],
outputs=[],
threaded=True)
#add tub to save data
inputs = ['cam/image_array', 'user/angle', 'user/throttle', 'user/mode']
types = ['image_array', 'float', 'float', 'str']
if cfg.TRAIN_BEHAVIORS:
inputs += [
'behavior/state', 'behavior/label', "behavior/one_hot_state_array"
]
types += ['int', 'str', 'vector']
if cfg.CAMERA_TYPE == "D435" and cfg.REALSENSE_D435_DEPTH:
inputs += ['cam/depth_array']
types += ['gray16_array']
if cfg.HAVE_IMU or (cfg.CAMERA_TYPE == "D435" and cfg.REALSENSE_D435_IMU):
inputs += [
'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x', 'imu/gyr_y',
'imu/gyr_z'
]
types += ['float', 'float', 'float', 'float', 'float', 'float']
if cfg.RECORD_DURING_AI:
inputs += ['pilot/angle', 'pilot/throttle']
types += ['float', 'float']
if cfg.HAVE_PERFMON:
from donkeycar.parts.perfmon import PerfMonitor
mon = PerfMonitor(cfg)
perfmon_outputs = ['perf/cpu', 'perf/mem', 'perf/freq']
inputs += perfmon_outputs
types += ['float', 'float', 'float']
V.add(mon, inputs=[], outputs=perfmon_outputs, threaded=True)
# do we want to store new records into own dir or append to existing
tub_path = TubHandler(path=cfg.DATA_PATH).create_tub_path() if \
cfg.AUTO_CREATE_NEW_TUB else cfg.DATA_PATH
tub_writer = TubWriter(tub_path, inputs=inputs, types=types, metadata=meta)
V.add(tub_writer,
inputs=inputs,
outputs=["tub/num_records"],
run_condition='recording')
# Telemetry (we add the same metrics added to the TubHandler
if cfg.HAVE_MQTT_TELEMETRY:
telem_inputs, _ = tel.add_step_inputs(inputs, types)
V.add(tel,
inputs=telem_inputs,
outputs=["tub/queue_size"],
threaded=True)
if cfg.PUB_CAMERA_IMAGES:
from donkeycar.parts.network import TCPServeValue
from donkeycar.parts.image import ImgArrToJpg
pub = TCPServeValue("camera")
V.add(ImgArrToJpg(), inputs=['cam/image_array'], outputs=['jpg/bin'])
V.add(pub, inputs=['jpg/bin'])
if type(ctr) is LocalWebController:
if cfg.DONKEY_GYM:
print("You can now go to http://localhost:%d to drive your car." %
cfg.WEB_CONTROL_PORT)
else:
print(
"You can now go to <your hostname.local>:%d to drive your car."
% cfg.WEB_CONTROL_PORT)
elif isinstance(ctr, JoystickController):
print("You can now move your joystick to drive your car.")
ctr.set_tub(tub_writer.tub)
ctr.print_controls()
#run the vehicle for 20 seconds
V.start(rate_hz=cfg.DRIVE_LOOP_HZ, max_loop_count=cfg.MAX_LOOPS)
def drive(cfg,
model_path=None,
use_joystick=False,
model_type=None,
camera_type='single',
meta=[]):
'''
Construct a working robotic vehicle from many parts.
Each part runs as a job in the Vehicle loop, calling either
it's run or run_threaded method depending on the constructor flag `threaded`.
All parts are updated one after another at the framerate given in
cfg.DRIVE_LOOP_HZ assuming each part finishes processing in a timely manner.
Parts may have named outputs and inputs. The framework handles passing named outputs
to parts requesting the same named input.
'''
if cfg.DONKEY_GYM:
#the simulator will use cuda and then we usually run out of resources
#if we also try to use cuda. so disable for donkey_gym.
os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
if model_type is None:
if cfg.TRAIN_LOCALIZER:
model_type = "localizer"
elif cfg.TRAIN_BEHAVIORS:
model_type = "behavior"
else:
model_type = cfg.DEFAULT_MODEL_TYPE
#Initialize car
#实例化小车
V = dk.vehicle.Vehicle()
range = Sensor(pi, cfg.RANGE_GPIOS)
# range.update_loop_body()
# V.add(range, outputs=['range/cms'], threaded=True)
print("cfg.CAMERA_TYPE", cfg.CAMERA_TYPE)
if camera_type == "stereo":
if cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
camA = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=0)
camB = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=1)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
camA = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=0)
camB = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
iCam=1)
else:
raise (Exception("Unsupported camera type: %s" % cfg.CAMERA_TYPE))
V.add(camA, outputs=['cam/image_array_a'], threaded=True)
V.add(camB, outputs=['cam/image_array_b'], threaded=True)
from donkeycar.parts.image import StereoPair
V.add(StereoPair(),
inputs=['cam/image_array_a', 'cam/image_array_b'],
outputs=['cam/image_array'])
elif cfg.CAMERA_TYPE == "D435":
from donkeycar.parts.realsense435i import RealSense435i
cam = RealSense435i(enable_rgb=cfg.REALSENSE_D435_RGB,
enable_depth=cfg.REALSENSE_D435_DEPTH,
enable_imu=cfg.REALSENSE_D435_IMU,
device_id=cfg.REALSENSE_D435_ID)
V.add(cam,
inputs=[],
outputs=[
'cam/image_array', 'cam/depth_array', 'imu/acl_x',
'imu/acl_y', 'imu/acl_z', 'imu/gyr_x', 'imu/gyr_y',
'imu/gyr_z'
],
threaded=True)
else:
if cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
inputs = []
threaded = True
if cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
cam = DonkeyGymEnv(cfg.DONKEY_SIM_PATH,
host=cfg.SIM_HOST,
env_name=cfg.DONKEY_GYM_ENV_NAME,
conf=cfg.GYM_CONF,
delay=cfg.SIM_ARTIFICIAL_LATENCY)
threaded = True
inputs = ['angle', 'throttle']
elif cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
print("NBNBNBNBNBNBNNBNBNBNBNBNB", 666666)
cam = PiCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE,
vflip=cfg.CAMERA_VFLIP,
hflip=cfg.CAMERA_HFLIP)
# pos = cam.update()
# print(pos)
elif cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE,
gstreamer_flip=cfg.CSIC_CAM_GSTREAMER_FLIP_PARM)
elif cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "IMAGE_LIST":
from donkeycar.parts.camera import ImageListCamera
cam = ImageListCamera(path_mask=cfg.PATH_MASK)
else:
raise (Exception("Unkown camera type: %s" % cfg.CAMERA_TYPE))
V.add(cam,
inputs=inputs,
outputs=['cam/image_array'],
threaded=threaded)
if use_joystick or cfg.USE_JOYSTICK_AS_DEFAULT:
#modify max_throttle closer to 1.0 to have more power
#modify steering_scale lower than 1.0 to have less responsive steering
if cfg.CONTROLLER_TYPE == "MM1":
from donkeycar.parts.robohat import RoboHATController
ctr = RoboHATController(cfg)
elif "custom" == cfg.CONTROLLER_TYPE:
#
# custom controller created with `donkey createjs` command
#
from my_joystick import MyJoystickController
ctr = MyJoystickController(
throttle_dir=cfg.JOYSTICK_THROTTLE_DIR,
throttle_scale=cfg.JOYSTICK_MAX_THROTTLE,
steering_scale=cfg.JOYSTICK_STEERING_SCALE,
auto_record_on_throttle=cfg.AUTO_RECORD_ON_THROTTLE)
ctr.set_deadzone(cfg.JOYSTICK_DEADZONE)
else:
from donkeycar.parts.controller import get_js_controller
ctr = get_js_controller(cfg)
if cfg.USE_NETWORKED_JS:
from donkeycar.parts.controller import JoyStickSub
netwkJs = JoyStickSub(cfg.NETWORK_JS_SERVER_IP)
V.add(netwkJs, threaded=True)
ctr.js = netwkJs
V.add(
ctr,
inputs=['cam/image_array'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
else:
#This web controller will create a web server that is capable
#of managing steering, throttle, and modes, and more.
ctr = LocalWebController(port=cfg.WEB_CONTROL_PORT,
mode=cfg.WEB_INIT_MODE)
V.add(
ctr,
inputs=['cam/image_array', 'tub/num_records'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
#this throttle filter will allow one tap back for esc reverse
th_filter = ThrottleFilter()
V.add(th_filter, inputs=['user/throttle'], outputs=['user/throttle'])
#See if we should even run the pilot module.
#This is only needed because the part run_condition only accepts boolean
class PilotCondition:
def run(self, mode):
if mode == 'user':
return False
else:
return True
V.add(PilotCondition(), inputs=['user/mode'], outputs=['run_pilot'])
class LedConditionLogic:
def __init__(self, cfg):
self.cfg = cfg
def run(self, mode, recording, recording_alert, behavior_state,
model_file_changed, track_loc):
#returns a blink rate. 0 for off. -1 for on. positive for rate.
if track_loc is not None:
led.set_rgb(*self.cfg.LOC_COLORS[track_loc])
return -1
if model_file_changed:
led.set_rgb(self.cfg.MODEL_RELOADED_LED_R,
self.cfg.MODEL_RELOADED_LED_G,
self.cfg.MODEL_RELOADED_LED_B)
return 0.1
else:
led.set_rgb(self.cfg.LED_R, self.cfg.LED_G, self.cfg.LED_B)
if recording_alert:
led.set_rgb(*recording_alert)
return self.cfg.REC_COUNT_ALERT_BLINK_RATE
else:
led.set_rgb(self.cfg.LED_R, self.cfg.LED_G, self.cfg.LED_B)
if behavior_state is not None and model_type == 'behavior':
r, g, b = self.cfg.BEHAVIOR_LED_COLORS[behavior_state]
led.set_rgb(r, g, b)
return -1 #solid on
if recording:
return -1 #solid on
elif mode == 'user':
return 1
elif mode == 'local_angle':
return 0.5
elif mode == 'local':
return 0.1
return 0
if cfg.HAVE_RGB_LED and not cfg.DONKEY_GYM:
from donkeycar.parts.led_status import RGB_LED
led = RGB_LED(cfg.LED_PIN_R, cfg.LED_PIN_G, cfg.LED_PIN_B,
cfg.LED_INVERT)
led.set_rgb(cfg.LED_R, cfg.LED_G, cfg.LED_B)
V.add(LedConditionLogic(cfg),
inputs=[
'user/mode', 'recording', "records/alert", 'behavior/state',
'modelfile/modified', "pilot/loc"
],
outputs=['led/blink_rate'])
V.add(led, inputs=['led/blink_rate'])
def get_record_alert_color(num_records):
col = (0, 0, 0)
for count, color in cfg.RECORD_ALERT_COLOR_ARR:
if num_records >= count:
col = color
return col
class RecordTracker:
def __init__(self):
self.last_num_rec_print = 0
self.dur_alert = 0
self.force_alert = 0
def run(self, num_records):
if num_records is None:
return 0
if self.last_num_rec_print != num_records or self.force_alert:
self.last_num_rec_print = num_records
if num_records % 10 == 0:
print("recorded", num_records, "records")
if num_records % cfg.REC_COUNT_ALERT == 0 or self.force_alert:
self.dur_alert = num_records // cfg.REC_COUNT_ALERT * cfg.REC_COUNT_ALERT_CYC
self.force_alert = 0
if self.dur_alert > 0:
self.dur_alert -= 1
if self.dur_alert != 0:
return get_record_alert_color(num_records)
return 0
rec_tracker_part = RecordTracker()
V.add(rec_tracker_part,
inputs=["tub/num_records"],
outputs=['records/alert'])
if cfg.AUTO_RECORD_ON_THROTTLE and isinstance(ctr, JoystickController):
#then we are not using the circle button. hijack that to force a record count indication
def show_record_acount_status():
rec_tracker_part.last_num_rec_print = 0
rec_tracker_part.force_alert = 1
ctr.set_button_down_trigger('circle', show_record_acount_status)
#Sombrero
if cfg.HAVE_SOMBRERO:
from donkeycar.parts.sombrero import Sombrero
s = Sombrero()
#IMU
if cfg.HAVE_IMU:
from donkeycar.parts.imu import IMU
imu = IMU(sensor=cfg.IMU_SENSOR, dlp_setting=cfg.IMU_DLP_CONFIG)
V.add(imu,
outputs=[
'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x',
'imu/gyr_y', 'imu/gyr_z'
],
threaded=True)
class ImgPreProcess():
'''
preprocess camera image for inference.
normalize and crop if needed.
'''
def __init__(self, cfg):
self.cfg = cfg
def run(self, img_arr):
return normalize_and_crop(img_arr, self.cfg)
if "coral" in model_type:
inf_input = 'cam/image_array'
else:
inf_input = 'cam/normalized/cropped'
V.add(ImgPreProcess(cfg),
inputs=['cam/image_array'],
outputs=[inf_input],
run_condition='run_pilot')
# Use the FPV preview, which will show the cropped image output, or the full frame.
if cfg.USE_FPV:
V.add(WebFpv(), inputs=['cam/image_array'], threaded=True)
#Behavioral state
if cfg.TRAIN_BEHAVIORS:
bh = BehaviorPart(cfg.BEHAVIOR_LIST)
V.add(bh,
outputs=[
'behavior/state', 'behavior/label',
"behavior/one_hot_state_array"
])
try:
ctr.set_button_down_trigger('L1', bh.increment_state)
except:
pass
inputs = [inf_input, "behavior/one_hot_state_array"]
#IMU
elif model_type == "imu":
assert (cfg.HAVE_IMU)
#Run the pilot if the mode is not user.
inputs = [
inf_input, 'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x',
'imu/gyr_y', 'imu/gyr_z'
]
else:
inputs = [inf_input]
def load_model(kl, model_path):
start = time.time()
print('loading model', model_path)
kl.load(model_path)
print('finished loading in %s sec.' % (str(time.time() - start)))
def load_weights(kl, weights_path):
start = time.time()
try:
print('loading model weights', weights_path)
kl.model.load_weights(weights_path)
print('finished loading in %s sec.' % (str(time.time() - start)))
except Exception as e:
print(e)
print('ERR>> problems loading weights', weights_path)
def load_model_json(kl, json_fnm):
start = time.time()
print('loading model json', json_fnm)
from tensorflow.python import keras
try:
with open(json_fnm, 'r') as handle:
contents = handle.read()
kl.model = keras.models.model_from_json(contents)
print('finished loading json in %s sec.' %
(str(time.time() - start)))
except Exception as e:
print(e)
print("ERR>> problems loading model json", json_fnm)
if model_path:
#When we have a model, first create an appropriate Keras part
kl = dk.utils.get_model_by_type(model_type, cfg)
model_reload_cb = None
if '.h5' in model_path or '.uff' in model_path or 'tflite' in model_path or '.pkl' in model_path:
#when we have a .h5 extension
#load everything from the model file
load_model(kl, model_path)
def reload_model(filename):
load_model(kl, filename)
model_reload_cb = reload_model
elif '.json' in model_path:
#when we have a .json extension
#load the model from there and look for a matching
#.wts file with just weights
load_model_json(kl, model_path)
weights_path = model_path.replace('.json', '.weights')
load_weights(kl, weights_path)
def reload_weights(filename):
weights_path = filename.replace('.json', '.weights')
load_weights(kl, weights_path)
model_reload_cb = reload_weights
else:
print("ERR>> Unknown extension type on model file!!")
return
#this part will signal visual LED, if connected
V.add(FileWatcher(model_path, verbose=True),
outputs=['modelfile/modified'])
#these parts will reload the model file, but only when ai is running so we don't interrupt user driving
V.add(FileWatcher(model_path),
outputs=['modelfile/dirty'],
run_condition="ai_running")
V.add(DelayedTrigger(100),
inputs=['modelfile/dirty'],
outputs=['modelfile/reload'],
run_condition="ai_running")
V.add(TriggeredCallback(model_path, model_reload_cb),
inputs=["modelfile/reload"],
run_condition="ai_running")
outputs = ['pilot/angle', 'pilot/throttle']
if cfg.TRAIN_LOCALIZER:
outputs.append("pilot/loc")
V.add(kl, inputs=inputs, outputs=outputs, run_condition='run_pilot')
if cfg.STOP_SIGN_DETECTOR:
from donkeycar.parts.object_detector.stop_sign_detector import StopSignDetector
V.add(StopSignDetector(cfg.STOP_SIGN_MIN_SCORE,
cfg.STOP_SIGN_SHOW_BOUNDING_BOX),
inputs=['cam/image_array', 'pilot/throttle'],
outputs=['pilot/throttle', 'cam/image_array'])
#Choose what inputs should change the car.
imgW = 160
imgH = 120
def JudgeLR(p):
#设置缓冲距离
SILENT_LR_DISTANCE = imgW / 12
#img中心点
center = [imgW / 2, imgH / 2]
#如果目标位于图片中心左侧，小车左转
p1 = (p[0] + p[2]) / 2
p2 = center[0] - SILENT_LR_DISTANCE
p3 = (p[0] + p[2]) / 2
p4 = center[0] + SILENT_LR_DISTANCE
if p1 < p2:
print(-0.5)
return -1
#如果目标位于图片中心右侧，小车右转
elif p3 > p4:
print(0.5)
return 1
def JudgeFB(p):
#设置缓冲距离
SILENT_FB_DISTANCE = imgH / 12
#img中心点
center = [imgW / 2, imgH / 2]
#如果目标上边框>imgH的1/3，小车前进
p5 = p[3] / imgH
if p5 > 1 / 3:
return 0.75
else:
return 0
class DriveMode:
def run(self, mode, user_angle, user_throttle, pilot_angle,
pilot_throttle):
global force_stop
global music_ing
#获取超声传感器测距信息distance
distance = range.distance_get()
#获取目标检测结果
with open("/home/pi/projects/donkeycar/parts/pos_data.txt",
"rb") as f:
try:
outputxmin = pickle.load(f)
outputymin = pickle.load(f)
outputxmax = pickle.load(f)
outputymax = pickle.load(f)
# music_controller = pickle.load(f)
music_on = pickle.load(f)
print(music_on)
except EOFError:
return None
p = [outputxmin, outputymin, outputxmax, outputymax]
print("music_ing", music_ing)
print("nusic_on", music_on)
# if music_controller == 1:
# os.system('mpg123 music.mp3')
# elif music_controller == 0:
# os.system('q')
imgW = 160
imgH = 120
#设置缓冲距离
SILENT_LR_DISTANCE = imgW / 12
#img中心点
center = [imgW / 2, imgH / 2]
p1 = (p[0] + p[2]) / 2
p2 = center[0] - SILENT_LR_DISTANCE
p3 = (p[0] + p[2]) / 2
p4 = center[0] + SILENT_LR_DISTANCE
d1 = imgH - p[3]
d2 = p1 - center[0]
if p[0] < 0: #若未检测到行人
user_throttle = 0.70
user_angle = -0.3
print('未检测到行人!!')
if distance < 40:
print('distance:', distance)
user_throttle = 0.0
user_angle = -0.3
else: #若检测到行人
if distance >= 40:
#根据超声测距控制油门
throttle = (0.15 / 110) * distance + 0.58
if throttle < 0.75:
user_throttle = throttle
else:
user_throttle = 0.75
#根据图像控制油门
# user_throttle = 0.65
# user_angle = -0.3
# #如果目标位于图片中心左侧，小车左转
# if p1<p2:
# print("左转",-0.5)
# user_angle = -0.5
# #如果目标位于图片中心右侧，小车右转
# elif p3>p4:
# print("右转",0.2)
# user_angle = 0.2
# # elif d1>imgH/3:
# # print('加速')
# # user_throttle = 0.65
# # elif d1<imgH/3 and d1>imgH/4:
# # print('减速')
# # user_throttle = 0.65
user_angle = (0.7 / 70) * d2 - 0.3
elif distance < 40:
print('distance:', distance)
user_throttle = 0.0
user_angle = -0.3
if music_on == 1 and music_ing == 0:
pygame.mixer.music.load("music1.mp3")
pygame.mixer.music.play(-1)
music_ing = 1
user_throttle = 0
elif music_on == 1 and music_ing == 1:
user_throttle = 0
elif music_on == 0 and music_ing == 1:
pygame.mixer.music.stop()
music_ing = 0
if mode == 'user':
print('油门', user_throttle)
print('角度', user_angle)
print(p)
return user_angle, user_throttle
elif mode == 'local_angle':
return pilot_angle if pilot_angle else 0.0, user_throttle
# else:
# if distance < 30:
# print('2:',distance)
# pilot_throttle = 0.0
# return pilot_angle if pilot_angle else 0.0, pilot_throttle * cfg.AI_THROTTLE_MULT if pilot_throttle else 0.0
else:
if p[0] < 0: #若未检测到行人
pilot_throttle = 0.0
pilot_angle = 0.0
print('未检测到行人', p)
return pilot_angle, pilot_throttle
else:
print('检测到行人！！！')
if distance >= 30:
return JudgeLR(p), JudgeFB(p)
elif distance < 30:
print('2:', distance)
pilot_throttle = 0.0
return pilot_angle if pilot_angle else 0.0, pilot_throttle * cfg.AI_THROTTLE_MULT if pilot_throttle else 0.0
V.add(DriveMode(),
inputs=[
'user/mode', 'user/angle', 'user/throttle', 'pilot/angle',
'pilot/throttle'
],
outputs=['angle', 'throttle'])
#to give the car a boost when starting ai mode in a race.
aiLauncher = AiLaunch(cfg.AI_LAUNCH_DURATION, cfg.AI_LAUNCH_THROTTLE,
cfg.AI_LAUNCH_KEEP_ENABLED)
V.add(aiLauncher, inputs=['user/mode', 'throttle'], outputs=['throttle'])
if isinstance(ctr, JoystickController):
ctr.set_button_down_trigger(cfg.AI_LAUNCH_ENABLE_BUTTON,
aiLauncher.enable_ai_launch)
class AiRunCondition:
'''
A bool part to let us know when ai is running.
'''
def run(self, mode):
if mode == "user":
return False
return True
V.add(AiRunCondition(), inputs=['user/mode'], outputs=['ai_running'])
#Ai Recording
class AiRecordingCondition:
'''
return True when ai mode, otherwize respect user mode recording flag
'''
def run(self, mode, recording):
if mode == 'user':
return recording
return True
if cfg.RECORD_DURING_AI:
V.add(AiRecordingCondition(),
inputs=['user/mode', 'recording'],
outputs=['recording'])
#Drive train setup
if cfg.DONKEY_GYM or cfg.DRIVE_TRAIN_TYPE == "MOCK":
pass
elif cfg.DRIVE_TRAIN_TYPE == "SERVO_ESC":
from donkeycar.parts.actuator import PCA9685, PWMSteering, PWMThrottle
steering_controller = PCA9685(cfg.STEERING_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PCA9685(cfg.THROTTLE_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
V.add(steering, inputs=['angle'], threaded=True)
V.add(throttle, inputs=['throttle'], threaded=True)
elif cfg.DRIVE_TRAIN_TYPE == "DC_STEER_THROTTLE":
from donkeycar.parts.actuator import Mini_HBridge_DC_Motor_PWM
steering = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_LEFT,
cfg.HBRIDGE_PIN_RIGHT)
throttle = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_FWD,
cfg.HBRIDGE_PIN_BWD)
V.add(steering, inputs=['angle'])
V.add(throttle, inputs=['throttle'])
elif cfg.DRIVE_TRAIN_TYPE == "DC_TWO_WHEEL":
from donkeycar.parts.actuator import TwoWheelSteeringThrottle, Mini_HBridge_DC_Motor_PWM
left_motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_LEFT_FWD,
cfg.HBRIDGE_PIN_LEFT_BWD)
right_motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_RIGHT_FWD,
cfg.HBRIDGE_PIN_RIGHT_BWD)
two_wheel_control = TwoWheelSteeringThrottle()
V.add(two_wheel_control,
inputs=['throttle', 'angle'],
outputs=['left_motor_speed', 'right_motor_speed'])
V.add(left_motor, inputs=['left_motor_speed'])
V.add(right_motor, inputs=['right_motor_speed'])
elif cfg.DRIVE_TRAIN_TYPE == "SERVO_HBRIDGE_PWM":
from donkeycar.parts.actuator import ServoBlaster, PWMSteering
steering_controller = ServoBlaster(cfg.STEERING_CHANNEL) #really pin
#PWM pulse values should be in the range of 100 to 200
assert (cfg.STEERING_LEFT_PWM <= 200)
assert (cfg.STEERING_RIGHT_PWM <= 200)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
from donkeycar.parts.actuator import Mini_HBridge_DC_Motor_PWM
motor = Mini_HBridge_DC_Motor_PWM(cfg.HBRIDGE_PIN_FWD,
cfg.HBRIDGE_PIN_BWD)
V.add(steering, inputs=['angle'], threaded=True)
V.add(motor, inputs=["throttle"])
elif cfg.DRIVE_TRAIN_TYPE == "MM1":
from donkeycar.parts.robohat import RoboHATDriver
V.add(RoboHATDriver(cfg), inputs=['angle', 'throttle'])
elif cfg.DRIVE_TRAIN_TYPE == "PIGPIO_PWM":
from donkeycar.parts.actuator import PWMSteering, PWMThrottle, PiGPIO_PWM
steering_controller = PiGPIO_PWM(cfg.STEERING_PWM_PIN,
freq=cfg.STEERING_PWM_FREQ,
inverted=cfg.STEERING_PWM_INVERTED)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PiGPIO_PWM(cfg.THROTTLE_PWM_PIN,
freq=cfg.THROTTLE_PWM_FREQ,
inverted=cfg.THROTTLE_PWM_INVERTED)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
V.add(steering, inputs=['angle'], threaded=True)
V.add(throttle, inputs=['throttle'], threaded=True)
# OLED setup
if cfg.USE_SSD1306_128_32:
from donkeycar.parts.oled import OLEDPart
auto_record_on_throttle = cfg.USE_JOYSTICK_AS_DEFAULT and cfg.AUTO_RECORD_ON_THROTTLE
oled_part = OLEDPart(cfg.SSD1306_128_32_I2C_BUSNUM,
auto_record_on_throttle=auto_record_on_throttle)
V.add(oled_part,
inputs=['recording', 'tub/num_records', 'user/mode'],
outputs=[],
threaded=True)
#add tub to save data
inputs = [
'cam/image_array',
'user/angle',
'user/throttle',
'range/cms', #新增传感器数据
'user/mode'
]
types = [
'image_array',
'float',
'float',
'float', #对应新增传感器数据的类型
'str'
]
if cfg.TRAIN_BEHAVIORS:
inputs += [
'behavior/state', 'behavior/label', "behavior/one_hot_state_array"
]
types += ['int', 'str', 'vector']
if cfg.CAMERA_TYPE == "D435" and cfg.REALSENSE_D435_DEPTH:
inputs += ['cam/depth_array']
types += ['gray16_array']
if cfg.HAVE_IMU or (cfg.CAMERA_TYPE == "D435" and cfg.REALSENSE_D435_IMU):
inputs += [
'imu/acl_x', 'imu/acl_y', 'imu/acl_z', 'imu/gyr_x', 'imu/gyr_y',
'imu/gyr_z'
]
types += ['float', 'float', 'float', 'float', 'float', 'float']
if cfg.RECORD_DURING_AI:
inputs += ['pilot/angle', 'pilot/throttle']
types += ['float', 'float']
# th = TubHandler(path=cfg.DATA_PATH)
# tub = th.new_tub_writer(inputs=inputs, types=types, user_meta=meta)
# V.add(tub, inputs=inputs, outputs=["tub/num_records"], run_condition='recording')
if cfg.PUB_CAMERA_IMAGES:
from donkeycar.parts.network import TCPServeValue
from donkeycar.parts.image import ImgArrToJpg
pub = TCPServeValue("camera")
V.add(ImgArrToJpg(), inputs=['cam/image_array'], outputs=['jpg/bin'])
V.add(pub, inputs=['jpg/bin'])
if type(ctr) is LocalWebController:
if cfg.DONKEY_GYM:
print("You can now go to http://localhost:%d to drive your car." %
cfg.WEB_CONTROL_PORT)
else:
print(
"You can now go to <your hostname.local>:%d to drive your car."
% cfg.WEB_CONTROL_PORT)
elif isinstance(ctr, JoystickController):
print("You can now move your joystick to drive your car.")
#tell the controller about the tub
# ctr.set_tub(tub)
if cfg.BUTTON_PRESS_NEW_TUB:
def new_tub_dir():
V.parts.pop()
# tub = th.new_tub_writer(inputs=inputs, types=types, user_meta=meta)
# V.add(tub, inputs=inputs, outputs=["tub/num_records"], run_condition='recording')
# ctr.set_tub(tub)
ctr.set_button_down_trigger('cross', new_tub_dir)
ctr.print_controls()
#run the vehicle for 20 seconds
V.start(rate_hz=cfg.DRIVE_LOOP_HZ, max_loop_count=cfg.MAX_LOOPS)
def drive(cfg, model_path=None, model_type=None):
"""
Construct a minimal robotic vehicle from many parts. Here, we use a
single camera, web or joystick controller, autopilot and tubwriter.
Each part runs as a job in the Vehicle loop, calling either it's run or
run_threaded method depending on the constructor flag `threaded`. All
parts are updated one after another at the framerate given in
cfg.DRIVE_LOOP_HZ assuming each part finishes processing in a timely
manner. Parts may have named outputs and inputs. The framework handles
passing named outputs to parts requesting the same named input.
"""
car = dk.vehicle.Vehicle()
# add camera
inputs = []
if cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
cam = DonkeyGymEnv(cfg.DONKEY_SIM_PATH,
host=cfg.SIM_HOST,
env_name=cfg.DONKEY_GYM_ENV_NAME,
conf=cfg.GYM_CONF,
delay=cfg.SIM_ARTIFICIAL_LATENCY)
inputs = ['angle', 'throttle', 'brake']
elif cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
cam = PiCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE,
vflip=cfg.CAMERA_VFLIP,
hflip=cfg.CAMERA_HFLIP)
elif cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE,
gstreamer_flip=cfg.CSIC_CAM_GSTREAMER_FLIP_PARM)
elif cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH,
framerate=cfg.CAMERA_FRAMERATE)
elif cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
image_d=cfg.IMAGE_DEPTH)
elif cfg.CAMERA_TYPE == "IMAGE_LIST":
from donkeycar.parts.camera import ImageListCamera
cam = ImageListCamera(path_mask=cfg.PATH_MASK)
else:
raise (Exception("Unkown camera type: %s" % cfg.CAMERA_TYPE))
car.add(cam, inputs=inputs, outputs=['cam/image_array'], threaded=True)
# add controller
if cfg.USE_JOYSTICK_AS_DEFAULT:
from donkeycar.parts.controller import get_js_controller
ctr = get_js_controller(cfg)
if cfg.USE_NETWORKED_JS:
from donkeycar.parts.controller import JoyStickSub
netwkJs = JoyStickSub(cfg.NETWORK_JS_SERVER_IP)
car.add(netwkJs, threaded=True)
ctr.js = netwkJs
else:
ctr = LocalWebController(port=cfg.WEB_CONTROL_PORT,
mode=cfg.WEB_INIT_MODE)
car.add(ctr,
inputs=['cam/image_array'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
# pilot condition to determine if user or ai are driving
car.add(PilotCondition(), inputs=['user/mode'], outputs=['run_pilot'])
# adding the auto-pilot
if model_type is None:
model_type = cfg.DEFAULT_MODEL_TYPE
if model_path:
kl = dk.utils.get_model_by_type(model_type, cfg)
kl.load(model_path=model_path)
inputs = ['cam/image_array']
outputs = ['pilot/angle', 'pilot/throttle']
car.add(kl, inputs=inputs, outputs=outputs, run_condition='run_pilot')
# Choose what inputs should change the car.
car.add(DriveMode(cfg=cfg),
inputs=[
'user/mode', 'user/angle', 'user/throttle', 'pilot/angle',
'pilot/throttle'
],
outputs=['angle', 'throttle'])
# Drive train setup
if cfg.DONKEY_GYM or cfg.DRIVE_TRAIN_TYPE == "MOCK":
pass
else:
steering_controller = PCA9685(cfg.STEERING_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PCA9685(cfg.THROTTLE_CHANNEL,
cfg.PCA9685_I2C_ADDR,
busnum=cfg.PCA9685_I2C_BUSNUM)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
car.add(steering, inputs=['angle'])
car.add(throttle, inputs=['throttle'])
# add tub to save data
inputs = ['cam/image_array', 'user/angle', 'user/throttle', 'user/mode']
types = ['image_array', 'float', 'float', 'str']
# do we want to store new records into own dir or append to existing
tub_path = TubHandler(path=cfg.DATA_PATH).create_tub_path() if \
cfg.AUTO_CREATE_NEW_TUB else cfg.DATA_PATH
tub_writer = TubWriter(base_path=tub_path, inputs=inputs, types=types)
car.add(tub_writer,
inputs=inputs,
outputs=["tub/num_records"],
run_condition='recording')
# start the car
car.start(rate_hz=cfg.DRIVE_LOOP_HZ, max_loop_count=cfg.MAX_LOOPS)
def build_camera(self, camera_type='single'):
IMAGE_W = self.cfg.IMAGE_W
IMAGE_H = self.cfg.IMAGE_H
IMAGE_DEPTH = self.cfg.IMAGE_DEPTH
print("cfg.CAMERA_TYPE", self.cfg.CAMERA_TYPE)
if camera_type == "stereo":
if self.cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
camA = Webcam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=0)
camB = Webcam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=1)
elif self.cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
camA = CvCam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=0)
camB = CvCam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
iCam=1)
else:
raise (Exception("Unsupported camera type: %s" %
self.cfg.CAMERA_TYPE))
self.vehicle.add(camA,
outputs=['cam/image_array_a'],
threaded=True)
self.vehicle.add(camB,
outputs=['cam/image_array_b'],
threaded=True)
from donkeycar.parts.image import StereoPair
self.vehicle.add(StereoPair(),
inputs=['cam/image_array_a', 'cam/image_array_b'],
outputs=['cam/image_array'])
else:
inputs = []
outputs = ['cam/image_array']
threaded = True
if self.cfg.DONKEY_GYM:
from donkeycar.parts.dgym import DonkeyGymEnv
cam_conf = {
'img_h': self.cfg.IMAGE_H,
'img_w': self.cfg.IMAGE_W,
'img_d': self.cfg.IMAGE_DEPTH
}
cam = DonkeyGymEnv(self.cfg.DONKEY_SIM_PATH,
env_name=self.cfg.DONKEY_GYM_ENV_NAME,
host=self.cfg.SIM_HOST,
conf=self.cfg.GYM_CONF,
cam_conf=cam_conf,
start_sim=self.cfg.DONKEY_GYM_START,
return_info=self.cfg.DONKEY_GYM_INFO,
reset=self.cfg.DONKEY_GYM_RESET)
threaded = True
inputs = ['angle', 'throttle']
if self.cfg.DONKEY_GYM_INFO:
outputs.append('sim/info')
elif self.cfg.CAMERA_TYPE == "PICAM":
from donkeycar.parts.camera import PiCamera
cam = PiCamera(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
elif self.cfg.CAMERA_TYPE == "WEBCAM":
from donkeycar.parts.camera import Webcam
cam = Webcam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
elif self.cfg.CAMERA_TYPE == "CVCAM":
from donkeycar.parts.cv import CvCam
cam = CvCam(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
elif self.cfg.CAMERA_TYPE == "CSIC":
from donkeycar.parts.camera import CSICamera
cam = CSICamera(
image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
framerate=self.cfg.CAMERA_FRAMERATE,
gstreamer_flip=self.cfg.CSIC_CAM_GSTREAMER_FLIP_PARM)
elif self.cfg.CAMERA_TYPE == "V4L":
from donkeycar.parts.camera import V4LCamera
cam = V4LCamera(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH,
framerate=self.cfg.CAMERA_FRAMERATE)
elif self.cfg.CAMERA_TYPE == "MOCK":
from donkeycar.parts.camera import MockCamera
cam = MockCamera(image_w=IMAGE_W,
image_h=IMAGE_H,
image_d=IMAGE_DEPTH)
else:
raise (Exception("Unkown camera type: %s" %
self.cfg.CAMERA_TYPE))
self.vehicle.add(cam,
inputs=inputs,
outputs=outputs,
threaded=threaded)
def drive(cfg, model_path=None, use_joystick=False, use_chaos=False):
"""
Construct a working robotic vehicle from many parts.
Each part runs as a job in the Vehicle loop, calling either
it's run or run_threaded method depending on the constructor flag `threaded`.
All parts are updated one after another at the framerate given in
cfg.DRIVE_LOOP_HZ assuming each part finishes processing in a timely manner.
Parts may have named outputs and inputs. The framework handles passing named outputs
to parts requesting the same named input.
"""
V = dk.vehicle.Vehicle()
clock = Timestamp()
V.add(clock, outputs=['timestamp'])
# cam = PiCamera(resolution=cfg.CAMERA_RESOLUTION)
# V.add(cam, outputs=['cam/image_array'], threaded=True)
cam = CSICamera(resolution=cfg.CAMERA_RESOLUTION)
V.add(cam, outputs=['cam/image_array'], threaded=False)
if use_joystick or cfg.USE_JOYSTICK_AS_DEFAULT:
# ctr = JoystickController(max_throttle=cfg.JOYSTICK_MAX_THROTTLE,
# steering_scale=cfg.JOYSTICK_STEERING_SCALE,
# auto_record_on_throttle=cfg.AUTO_RECORD_ON_THROTTLE)
ctr = PS3JoystickController(
throttle_scale=cfg.JOYSTICK_MAX_THROTTLE,
steering_scale=cfg.JOYSTICK_STEERING_SCALE,
auto_record_on_throttle=cfg.AUTO_RECORD_ON_THROTTLE)
else:
# This web controller will create a web server that is capable
# of managing steering, throttle, and modes, and more.
ctr = LocalWebController(use_chaos=use_chaos)
V.add(ctr,
inputs=['cam/image_array'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
# See if we should even run the pilot module.
# This is only needed because the part run_condition only accepts boolean
def pilot_condition(mode):
if mode == 'user':
return False
else:
return True
pilot_condition_part = Lambda(pilot_condition)
V.add(pilot_condition_part,
inputs=['user/mode'],
outputs=['run_pilot'])
# Run the pilot if the mode is not user.
kl = KerasLinear()
if model_path:
kl.load(model_path)
V.add(kl,
inputs=['cam/image_array'],
outputs=['pilot/angle', 'pilot/throttle'],
run_condition='run_pilot')
# Choose what inputs should change the car.
def drive_mode(mode,
user_angle, user_throttle,
pilot_angle, pilot_throttle):
if mode == 'user':
return user_angle, user_throttle
elif mode == 'local_angle':
return pilot_angle, user_throttle
else:
return pilot_angle, pilot_throttle
drive_mode_part = Lambda(drive_mode)
V.add(drive_mode_part,
inputs=['user/mode', 'user/angle', 'user/throttle',
'pilot/angle', 'pilot/throttle'],
outputs=['angle', 'throttle'])
steering_controller = PCA9685(cfg.STEERING_CHANNEL)
steering = PWMSteering(controller=steering_controller,
left_pulse=cfg.STEERING_LEFT_PWM,
right_pulse=cfg.STEERING_RIGHT_PWM)
throttle_controller = PCA9685(cfg.THROTTLE_CHANNEL)
throttle = PWMThrottle(controller=throttle_controller,
max_pulse=cfg.THROTTLE_FORWARD_PWM,
zero_pulse=cfg.THROTTLE_STOPPED_PWM,
min_pulse=cfg.THROTTLE_REVERSE_PWM)
V.add(steering, inputs=['angle'])
V.add(throttle, inputs=['throttle'])
# add tub to save data
inputs = ['cam/image_array', 'user/angle', 'user/throttle', 'user/mode', 'timestamp']
types = ['image_array', 'float', 'float', 'str', 'str']
# multiple tubs
# th = TubHandler(path=cfg.DATA_PATH)
# tub = th.new_tub_writer(inputs=inputs, types=types)
# single tub
tub = TubWriter(path=cfg.TUB_PATH, inputs=inputs, types=types)
V.add(tub, inputs=inputs, run_condition='recording')
# run the vehicle
V.start(rate_hz=cfg.DRIVE_LOOP_HZ,
max_loop_count=cfg.MAX_LOOPS)
def drive(cfg,
model_path=None,
use_joystick=False,
use_trt=False,
use_half=False,
model_type=None):
# --------------------------------
# 1. Initialize car
# --------------------------------
V = dk.vehicle.Vehicle()
# --------------------------------
# 2. Add camera
# --------------------------------
cam = CSICamera(image_w=cfg.IMAGE_W,
image_h=cfg.IMAGE_H,
framerate=cfg.CAMERA_FRAMERATE,
crop_top=cfg.ROI_CROP_TOP,
crop_bottom=cfg.ROI_CROP_BOTTOM)
V.add(cam, inputs=[], outputs=['cam/image_array'], threaded=True)
if cfg.USE_FPV:
V.add(WebFpv(), inputs=['cam/image_array'],
threaded=True) # send the FPV image through network at port 8890
# --------------------------------
# 3. Add gamepad or webpage controller
# --------------------------------
if model_path:
cfg.WEB_INIT_MODE = "local"
if use_joystick or cfg.USE_JOYSTICK_AS_DEFAULT:
from donkeycar.parts.controller import get_js_controller
ctr = get_js_controller(cfg)
V.add(
ctr,
inputs=['cam/image_array'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
else:
# This web controller will create a web server that is capable of managing steering, throttle, and modes, and more.
ctr = LocalWebController(port=cfg.WEB_CONTROL_PORT,
mode=cfg.WEB_INIT_MODE)
V.add(
ctr,
inputs=['cam/image_array', 'tub/num_records'],
outputs=['user/angle', 'user/throttle', 'user/mode', 'recording'],
threaded=True)
V = add_basic_modules(V, cfg) # e.g., record tracker
# --------------------------------
# 4. Configure the AI neural network model
# --------------------------------
if model_path:
print('loading the self-driving model, model_path:', model_path)
t0 = time.time()
import torch
device = torch.device('cuda')
if not use_trt:
if model_type == 'linear':
drive_model = LinearModel().to(device)
elif model_type == 'resnet18':
drive_model = LinearResModel().to(device)
elif model_type == 'rnn':
drive_model = RNNModel().to(device)
drive_model.load_state_dict(
torch.load(model_path,
map_location=lambda storage, loc: storage))
if use_half:
drive_model.eval().half()
else:
drive_model.eval()
else:
from torch2trt import TRTModule
drive_model = TRTModule()
drive_model.load_state_dict(torch.load(
model_path)) # no need to move to device if using torch2trt
print('model loaded, time cost: %.2f s' % (time.time() - t0))
drive_class = DriveClass(cfg,
model_type,
drive_model,
device,
cam=cam,
half=use_half)
outputs = ['pilot/angle', 'pilot/throttle']
V.add(drive_class,
inputs=['cam/image_array'],
outputs=outputs,
run_condition='run_pilot',
threaded=False)
# if use threaded mode, the input image will not be used,
# because the thread will contineously read images from vehicle memory.
# --------------------------------
# 5. Choose which control command to use
# --------------------------------
out = ['angle', 'throttle']
if cfg.CONTROL_NOISE:
print(
'\n##########################################\nAdding Random Action Noise\n##########################################\n'
)
out += ['user/angle_noise', 'user/throttle_noise']
V.add(DriveMode(cfg),
inputs=[
'user/mode', 'user/angle', 'user/throttle', 'pilot/angle',
'pilot/throttle'
],
outputs=out)
# --------------------------------
# 6. Configure the low-level controller that translates steering and throttle to PWM signals
# --------------------------------
V = add_control_modules(V, cfg)
# --------------------------------
# 7. Add tub to save data
# --------------------------------
V, tub = add_tub_save_data(V, cfg)
# --------------------------------
# 8. Print user guide
# --------------------------------
if type(ctr) is LocalWebController:
print("You can now go to <car_ip_address>:%d to drive your car." %
cfg.WEB_CONTROL_PORT)
elif isinstance(ctr, JoystickController):
print("You can now move your joystick to drive your car.")
#tell the controller about the tub
ctr.set_tub(tub)
ctr.print_controls()
# --------------------------------
# 9. press "Enter" to start if using AI mode, or else directly start the vehicle
# --------------------------------
if model_path:
enter = input("press ENTER to start racing")
if enter == '':
V.start(rate_hz=cfg.DRIVE_LOOP_HZ, max_loop_count=cfg.MAX_LOOPS
) #run the vehicle for DRIVE_LOOP_HZ, e.g., 20 HZ
else:
V.start(rate_hz=cfg.DRIVE_LOOP_HZ, max_loop_count=cfg.MAX_LOOPS)
