def analyze_STANDSTILL(message_array):
wheels_moving = []
for m in message_array:
message = m[1].split('x')[1]
length = m[2]
WHEELS_MOVING = hex_to_byte(message[1], 1)[3]
wheels_moving.append(WHEELS_MOVING)
draw_fig(range(len(wheels_moving)), '', wheels_moving, 'wheels moving')
def analyze_DSU_SPEED(message_array):
forward_speed = []
operation_time = []
for m in message_array:
s = hex_to_int(m[1], 71, 15, 16, signed=True) * 3.90625
forward_speed.append(s)
operation_time.append(m[0])
draw_fig(operation_time, '', forward_speed, 'forward speed (kph)')
return operation_time, forward_speed
def analyze_POWERTRAIN_DATA(message_array):
brake_on = []
for m in message_array:
message = m[1].split('x')[1]
length = m[2]
BRAKE_SWITCH = hex_to_byte(message[4],1)[-1]
brake_on.append(BRAKE_SWITCH)
draw_fig(range(len(brake_on)), '', brake_on, 'brake on')
def analyze_KINEMATICS(message_array):
long_accel = []
for m in message_array:
message = m[1].split('x')[1] #66, get the hex number for KINEMATICS
bin1 = hex_to_byte(message, 8) #66, transform the hex to 64 binary numbers
bin2 = bin1[30:40] #66, get the 31~40 binary numbers which correspond to longtitudinal acceleration
dec1 = int(bin2, 2) #66, transform the 31~40 binary value to decimal
factor = -0.035 #66, this is read from CABANA
offset = 17.92 #66, this is read from CABANA
result = factor * dec1 + offset #66, compute the real longitudinal acceleration value
long_accel.append(result)
draw_fig(range(len(long_accel)),'time step',long_accel,'long_accel')
def analyze_GAS_PEDAL_2(message_array):
torque_estimate=[]
torque_request=[]
for m in message_array:
message = m[1].split('x')[1]
length = m[2]
ENGINE_TORQUE_ESTIMATE=int(message[0:4],16)
ENGINE_TORQUE_REQUEST=int(message[4:8],16)
torque_estimate.append(ENGINE_TORQUE_ESTIMATE)
torque_request.append(ENGINE_TORQUE_REQUEST)
draw_fig(range(len(torque_estimate)),'',torque_estimate,'estimated torque(Nm)')
draw_fig(range(len(torque_request)),'',torque_request,'request torque(Nm)')
def analyze_ENGINE_DATA(message_array):
speed=[]
rpm=[]
for m in message_array:
message = m[1].split('x')[1]
length = m[2]
XMISSION_SPEED=int(message[0:4],16)*0.01
ENGINE_RPM=int(message[4:8],16)
speed.append(XMISSION_SPEED)
rpm.append(ENGINE_RPM)
draw_fig(range(len(speed)),'',speed,'speed (kph)')
draw_fig(range(len(rpm)),'',rpm,'RPM')
def analyze_SEATBELT_STATUS(message_array):
driver_seatbelt_lamp = []
driver_seatbelt_unlatched = []
driver_seatbelt_latched = []
for m in message_array:
message = m[1].split('x')[1]
length = m[2]
SEATBELT_DRIVER_LAMP = hex_to_byte(message[0], 1)[0]
SEATBELT_DRIVER_LATCHED = hex_to_byte(message[1], 1)[2]
SEATBELT_DRIVER_UNLATCHED = hex_to_byte(message[1], 1)[3]
driver_seatbelt_lamp.append(SEATBELT_DRIVER_LAMP)
driver_seatbelt_latched.append(SEATBELT_DRIVER_LATCHED)
driver_seatbelt_unlatched.append(SEATBELT_DRIVER_UNLATCHED)
draw_fig(range(len(driver_seatbelt_lamp)), '', driver_seatbelt_lamp, 'lamp')
draw_fig(range(len(driver_seatbelt_latched)), '', driver_seatbelt_latched, 'latched')
draw_fig(range(len(driver_seatbelt_unlatched)), '', driver_seatbelt_unlatched, 'unlatched')