dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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import os
import numpy as np
import matplotlib.pyplot as plt
import pylab
from selfdrive.config import Conversions as CV
class ManeuverPlot():
def __init__(self, title=None):
self.time_array = []
self.gas_array = []
self.brake_array = []
self.steer_torque_array = []
self.distance_array = []
self.speed_array = []
self.acceleration_array = []
self.up_accel_cmd_array = []
self.ui_accel_cmd_array = []
self.uf_accel_cmd_array = []
self.d_rel_array = []
self.v_rel_array = []
self.v_lead_array = []
self.v_target_lead_array = []
self.pid_speed_array = []
self.cruise_speed_array = []
self.jerk_factor_array = []
self.a_target_array = []
self.v_target_array = []
self.fcw_array = []
self.title = title
def add_data(self, time, gas, brake, steer_torque, distance, speed,
acceleration, up_accel_cmd, ui_accel_cmd, uf_accel_cmd, d_rel, v_rel,
v_lead, v_target_lead, pid_speed, cruise_speed, jerk_factor, a_target, fcw):
self.time_array.append(time)
self.gas_array.append(gas)
self.brake_array.append(brake)
self.steer_torque_array.append(steer_torque)
self.distance_array.append(distance)
self.speed_array.append(speed)
self.acceleration_array.append(acceleration)
self.up_accel_cmd_array.append(up_accel_cmd)
self.ui_accel_cmd_array.append(ui_accel_cmd)
self.uf_accel_cmd_array.append(uf_accel_cmd)
self.d_rel_array.append(d_rel)
self.v_rel_array.append(v_rel)
self.v_lead_array.append(v_lead)
self.v_target_lead_array.append(v_target_lead)
self.pid_speed_array.append(pid_speed)
self.cruise_speed_array.append(cruise_speed)
self.jerk_factor_array.append(jerk_factor)
self.a_target_array.append(a_target)
self.fcw_array.append(fcw)
def write_plot(self, path, maneuver_name):
# title = self.title or maneuver_name
# TODO: Missing plots from the old one:
# long_control_state
# proportional_gb, intergral_gb
if not os.path.exists(path + "/" + maneuver_name):
os.makedirs(path + "/" + maneuver_name)
plt_num = 0
# speed chart ===================
plt_num += 1
plt.figure(plt_num)
plt.plot(
np.array(self.time_array), np.array(self.speed_array) * CV.MS_TO_MPH, 'r',
np.array(self.time_array), np.array(self.pid_speed_array) * CV.MS_TO_MPH, 'y--',
np.array(self.time_array), np.array(self.v_target_lead_array) * CV.MS_TO_MPH, 'b',
np.array(self.time_array), np.array(self.cruise_speed_array) * CV.KPH_TO_MPH, 'k',
np.array(self.time_array), np.array(self.v_lead_array) * CV.MS_TO_MPH, 'm'
)
plt.xlabel('Time [s]')
plt.ylabel('Speed [mph]')
plt.legend(['speed', 'pid speed', 'Target (lead) speed', 'Cruise speed', 'Lead speed'], loc=0)
plt.grid()
pylab.savefig("/".join([path, maneuver_name, 'speeds.svg']), dpi=1000)
# acceleration chart ============
plt_num += 1
plt.figure(plt_num)
plt.plot(
np.array(self.time_array), np.array(self.acceleration_array), 'g',
np.array(self.time_array), np.array(self.a_target_array), 'k--',
np.array(self.time_array), np.array(self.fcw_array), 'ro',
)
plt.xlabel('Time [s]')
plt.ylabel('Acceleration [m/s^2]')
plt.legend(['ego-plant', 'target', 'fcw'], loc=0)
plt.grid()
pylab.savefig("/".join([path, maneuver_name, 'acceleration.svg']), dpi=1000)
# pedal chart ===================
plt_num += 1
plt.figure(plt_num)
plt.plot(
np.array(self.time_array), np.array(self.gas_array), 'g',
np.array(self.time_array), np.array(self.brake_array), 'r',
)
plt.xlabel('Time [s]')
plt.ylabel('Pedal []')
plt.legend(['Gas pedal', 'Brake pedal'], loc=0)
plt.grid()
pylab.savefig("/".join([path, maneuver_name, 'pedals.svg']), dpi=1000)
# pid chart ======================
plt_num += 1
plt.figure(plt_num)
plt.plot(
np.array(self.time_array), np.array(self.up_accel_cmd_array), 'g',
np.array(self.time_array), np.array(self.ui_accel_cmd_array), 'b',
np.array(self.time_array), np.array(self.uf_accel_cmd_array), 'r'
)
plt.xlabel("Time, [s]")
plt.ylabel("Accel Cmd [m/s^2]")
plt.grid()
plt.legend(["Proportional", "Integral", "feedforward"], loc=0)
pylab.savefig("/".join([path, maneuver_name, "pid.svg"]), dpi=1000)
# relative distances chart =======
plt_num += 1
plt.figure(plt_num)
plt.plot(
np.array(self.time_array), np.array(self.d_rel_array), 'g',
)
plt.xlabel('Time [s]')
plt.ylabel('Relative Distance [m]')
plt.grid()
pylab.savefig("/".join([path, maneuver_name, 'distance.svg']), dpi=1000)
plt.close("all")