class Drone: """Drone instance. Starts and flies drone""" logging.basicConfig(level=logging.ERROR) URI = 'radio://0/80/250K' def __init__(self, URI='radio://0/80/250K'): """ Init commad connects to drone :param URI: URI """ self._cf = Crazyflie(rw_cache='./cache') cflib.crtp.init_drivers(enable_debug_driver=False) self.scf = SyncCrazyflie(URI, cf=self._cf) self.scf.__enter__() self.motionCommander = MotionCommander(self.scf) #self.multiranger = Multiranger(self.scf) def take_off(self, height=1.0, velocity=0.2): """has the drone take off""" # drone takes off self.motionCommander.take_off(height=height, velocity=velocity) def land(self): self.motionCommander.land() def move(self, vector): """moves the drone at a constant speed in one direction""" if vector['y'] > 0.1: print "move up by {}m".format(vector['y']) self.motionCommander.up(vector['y'], velocity=0.4) elif vector['y'] < -0.1: print "move down by {}m".format(abs(vector['y'])) self.motionCommander.down(abs(vector['y']), velocity=0.4) if vector['x'] > 0.1: print "move left by {}m".format(vector['x']) self.motionCommander.left(vector['x'], velocity=0.4) elif vector['x'] < -0.1: print "move right by {}m".format(abs(vector['x'])) self.motionCommander.right(abs(vector['x']), velocity=0.4) if vector['z'] > 2.1: print "move fowards by {}m".format(vector['z'] - 2.0) self.motionCommander.forward(vector['z'] - 2.0, velocity=0.4) self elif vector['z'] < 1.9: print "move backwards by {}m".format(2.0 - vector['z']) self.motionCommander.back(2.0 - vector['z'], velocity=0.4) def disconnect(self): self.scf.close_link() def is_close(range): MIN_DISTANCE = 0.4 # m if range is None: return False else: return range < MIN_DISTANCE
import cflib.crtp from cflib.crazyflie import Crazyflie from cflib.crazyflie.log import LogConfig from cflib.crazyflie.syncCrazyflie import SyncCrazyflie from cflib.crazyflie.syncLogger import SyncLogger from cflib.positioning.motion_commander import MotionCommander URI = 'radio://0/30/2M/E7E7E7E7E7' cflib.crtp.init_drivers(enable_debug_driver=False) with SyncCrazyflie(URI, cf=Crazyflie(rw_cache='./cache')) as scf: mc = MotionCommander(scf) mc.take_off(1.0, 0.3) # 利用更底层函数精确指定悬浮高度为 1m scf.cf.commander.send_hover_setpoint(0, 0, 0, 1.0) mc._thread._z_base = 1.0 mc._thread._z_velocity = 0.0 mc._thread._z_base_time = time.time() time.sleep(1) try: while True: time.sleep(1) mc.forward(0.5, 0.3) mc.right(0.5, 0.3) mc.back(0.5, 0.3) mc.left(0.5, 0.3) except: mc.land()
class CrazyflieControl: def __init__(self, name, crazyflie): # Instantiate motion commander self._cf = crazyflie self._name = name self._mc = MotionCommander(self._cf) # Topic Publishers self._velocity_setpoint_pub = rospy.Publisher(self._name + '/velocity_setpoint', Vector3, queue_size=10) """ Services hosted for this crazyflie controller """ self._reset_position_estimator_srv = rospy.Service( self._name + '/reset_position_estimator', ResetPositionEstimator, self._reset_position_estimator_cb) self._send_hover_setpoint_srv = rospy.Service( self._name + '/send_hover_setpoint', SendHoverSetpoint, self._send_hover_setpoint_cb) self._set_param_srv = rospy.Service(self._name + '/set_param', SetParam, self._set_param_cb) self._velocity_control_srv = rospy.Service( self._name + '/velocity_control', VelocityControl, self._velocity_control_cb) """ Action servers for this crazyflie controller """ self._position_control_as = actionlib.SimpleActionServer( self._name + '/position_control', PositionControlAction, self._position_control_cb, False) self._position_control_as.start() """ Service Callbacks """ def _reset_position_estimator_cb(self, req): pass def _send_hover_setpoint_cb(self, req): vx = req.vx vy = req.vy z = req.z yaw_rate = req.yaw_rate self._cf.commander.send_hover_setpoint(vx, vy, yaw_rate, z) return [] def _set_param_cb(self, req): self._cf.param.set_value(req.param, req.value) print("set %s to %s" % (req.param, req.value)) return SetParamResponse() def _velocity_control_cb(self, req): try: obj = pickle.loads(req.pickle) print(self._mc) if isinstance(obj, SetVelSetpoint): self._mc._set_vel_setpoint(obj.vx, obj.vy, obj.vz, obj.rate_yaw) elif isinstance(obj, StartBack): self._mc.start_back(velocity=obj.velocity) elif isinstance(obj, StartCircleLeft): self._mc.start_circle_left(obj.radius_m, velocity=obj.velocity) elif isinstance(obj, StartCircleRight): self._mc.start_turn_right(obj.radius_m, velocity=obj.velocity) elif isinstance(obj, StartDown): self._mc.start_down(velocity=obj.velocity) elif isinstance(obj, StartForward): self._mc.start_forward(velocity=obj.velocity) elif isinstance(obj, StartLeft): self._mc.start_left(velocity=obj.velocity) elif isinstance(obj, StartLinearMotion): self._mc.start_linear_motion(obj.vx, obj.vy, obj.vz) elif isinstance(obj, StartRight): self._mc.start_right(velocity=obj.velocity) elif isinstance(obj, StartTurnLeft): self._mc.start_turn_left(rate=obj.rate) elif isinstance(obj, StartTurnRight): self._mc.start_turn_right(rate=obj.rate) elif isinstance(obj, StartUp): self._mc.start_up(velocity=obj.velocity) elif isinstance(obj, Stop): self._mc.stop() else: return 'Object is not a valid velocity command' except Exception as e: print(str(e)) raise e return 'ok' """ Action Implementations """ def _position_control_cb(self, goal): try: obj = pickle.loads(goal.pickle) if isinstance(obj, Back): self._mc.back(obj.distance_m, velocity=obj.velocity) elif isinstance(obj, CircleLeft): self._mc.circle_left(obj.radius_m, velocity=obj.velocity, angle_degrees=obj.angle_degrees) elif isinstance(obj, CircleRight): self._mc.circle_right(obj.radius_m, velocity=obj.velocity, angle_degrees=obj.angle_degrees) elif isinstance(obj, Down): self._mc.down(obj.distance_m, velocity=obj.velocity) elif isinstance(obj, Forward): self._mc.forward(obj.distance_m, velocity=obj.velocity) elif isinstance(obj, Land): self._mc.land(velocity=obj.velocity) elif isinstance(obj, Left): self._mc.left(obj.distance_m, velocity=obj.velocity) elif isinstance(obj, MoveDistance): self._mc.move_distance(obj.x, obj.y, obj.z, velocity=obj.velocity) elif isinstance(obj, Right): self._mc.right(obj.distance_m, velocity=obj.velocity) elif isinstance(obj, TakeOff): self._mc.take_off(height=obj.height, velocity=obj.velocity) elif isinstance(obj, TurnLeft): self._mc.turn_left(obj.angle_degrees, rate=obj.rate) elif isinstance(obj, TurnRight): self._mc.turn_right(obj.angle_degrees, rate=obj.rate) elif isinstance(obj, Up): self._mc.up(obj.distance_m, velocity=obj.velocity) except Exception as e: print('Exception in action server %s' % self._name + '/position_control') print(str(e)) print('Action aborted') self._position_control_as.set_aborted() return self._position_control_as.set_succeeded() def _takeoff(self, goal): try: self._mc.take_off(height=goal.height) time.sleep(5) except BaseException as e: self._takeoff_as.set_aborted() print(e) return self._takeoff_as.set_succeeded(TakeOffResult(True)) def _land(self, goal): try: self._mc.land(velocity=goal.velocity) except BaseException as e: self._land_as.set_aborted() print(e) return self._land_as.set_succeeded(LandResult(True)) def _move_distance(self, goal): try: x = goal.x y = goal.y z = goal.z velocity = goal.velocity dist = np.sqrt(x**2 + y**2 + z**2) vx = x / dist * velocity vy = y / dist * velocity vz = z / dist * velocity # self._velocity_setpoint_pub.publish(Vector3(vx, vy, vz)) self._mc.move_distance(x, y, z, velocity=velocity) # self._velocity_setpoint_pub.publish(Vector3(vx, vy, vz)) except BaseException as e: self._move_distance_as.set_aborted() print(e) return self._move_distance_as.set_succeeded()
class Drone: def __init__(self, URI): cflib.crtp.init_drivers(enable_debug_driver=False) self.cf = Crazyflie(ro_cache=None, rw_cache='./cache') # Connect callbacks from the Crazyflie API self.cf.connected.add_callback(self.connected) self.cf.disconnected.add_callback(self.disconnected) # Connect to the Crazyflie self.cf.open_link(URI) # Tool to process the data from drone's sensors # self.processing = Processing() self.motion_commander = MotionCommander(self.cf) time.sleep(3) self.motion_commander.take_off(0.3, 0.2) time.sleep(1) self.motion_commander.start_forward(0.15) time.sleep(0.5) self.stop_recording = [] thread.start_new_thread(self.land_command, ()) self.start_mission() def land_command(self): raw_input() self.stop_recording.append(True) print('Landing...') self.motion_commander.stop() self.motion_commander.land(0.2) time.sleep(1) def start_mission(self): rate = rospy.Rate(4000) while not self.stop_recording: print('fly') self.sendHoverCommand() rate.sleep() def sendHoverCommand(self): """ Change UAV flight direction based on obstacles detected with multiranger. """ if is_close(self.measurement['front'] ) and self.measurement['left'] > self.measurement['right']: print('FRONT RIGHT') self.motion_commander.stop() self.motion_commander.turn_left(60, 70) self.motion_commander.start_forward(0.15) if is_close(self.measurement['front'] ) and self.measurement['left'] < self.measurement['right']: print('FRONT LEFT') self.motion_commander.stop() self.motion_commander.turn_right(60, 70) self.motion_commander.start_forward(0.15) if is_close(self.measurement['left']): print('LEFT') self.motion_commander.right(0.1, 0.2) self.motion_commander.stop() self.motion_commander.turn_right(45, 70) self.motion_commander.start_forward(0.15) if is_close(self.measurement['right']): print('RIGHT') self.motion_commander.left(0.1, 0.2) self.motion_commander.stop() self.motion_commander.turn_left(45, 70) self.motion_commander.start_forward(0.15) def disconnected(self, URI): print('Disconnected') def connected(self, URI): print('We are now connected to {}'.format(URI)) # The definition of the logconfig can be made before connecting lpos = LogConfig(name='Position', period_in_ms=100) lpos.add_variable('lighthouse.x') lpos.add_variable('lighthouse.y') lpos.add_variable('lighthouse.z') lpos.add_variable('stabilizer.roll') lpos.add_variable('stabilizer.pitch') lpos.add_variable('stabilizer.yaw') try: self.cf.log.add_config(lpos) lpos.data_received_cb.add_callback(self.pos_data) lpos.start() except KeyError as e: print('Could not start log configuration,' '{} not found in TOC'.format(str(e))) except AttributeError: print('Could not add Position log config, bad configuration.') lmeas = LogConfig(name='Meas', period_in_ms=100) lmeas.add_variable('range.front') lmeas.add_variable('range.back') lmeas.add_variable('range.up') lmeas.add_variable('range.left') lmeas.add_variable('range.right') lmeas.add_variable('range.zrange') lmeas.add_variable('stabilizer.roll') lmeas.add_variable('stabilizer.pitch') lmeas.add_variable('stabilizer.yaw') try: self.cf.log.add_config(lmeas) lmeas.data_received_cb.add_callback(self.meas_data) lmeas.start() except KeyError as e: print('Could not start log configuration,' '{} not found in TOC'.format(str(e))) except AttributeError: print('Could not add Measurement log config, bad configuration.') lbat = LogConfig( name='Battery', period_in_ms=500) # read battery status with 2 Hz rate lbat.add_variable('pm.vbat', 'float') try: self.cf.log.add_config(lbat) lbat.data_received_cb.add_callback(self.battery_data) lbat.start() except KeyError as e: print('Could not start log configuration,' '{} not found in TOC'.format(str(e))) except AttributeError: print('Could not add Measurement log config, bad configuration.') def pos_data(self, timestamp, data, logconf): # Transformation according to https://wiki.bitcraze.io/doc:lighthouse:setup position = [ -data['lighthouse.z'], -data['lighthouse.x'], data['lighthouse.y'] # data['stateEstimate.x'], # data['stateEstimate.y'], # data['stateEstimate.z'] ] orientation = [ data['stabilizer.roll'], data['stabilizer.pitch'], data['stabilizer.yaw'] ] self.position = position self.orientation = orientation # self.processing.set_position(position, orientation) def meas_data(self, timestamp, data, logconf): measurement = { 'roll': data['stabilizer.roll'], 'pitch': data['stabilizer.pitch'], 'yaw': data['stabilizer.yaw'], 'front': data['range.front'], 'back': data['range.back'], 'up': data['range.up'], 'down': data['range.zrange'], 'left': data['range.left'], 'right': data['range.right'] } self.measurement = measurement # self.processing.set_measurement(measurement) def battery_data(self, timestamp, data, logconf): self.V_bat = data['pm.vbat'] # print('Battery status: %.2f [V]' %self.V_bat) if self.V_bat <= V_BATTERY_TO_GO_HOME: self.battery_state = 'needs_charging' # print('Battery is not charged: %.2f' %self.V_bat) elif self.V_bat >= V_BATTERY_CHARGED: self.battery_state = 'fully_charged'