openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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import capnp
import numpy as np
from typing import List, Dict
from openpilot.selfdrive.modeld.constants import T_IDXS, X_IDXS, LEAD_T_IDXS, META_T_IDXS, LEAD_T_OFFSETS, Meta, Plan, FCW_THRESHOLDS_5MS2, FCW_THRESHOLDS_3MS2
class PublishState:
def __init__(self):
self.disengage_buffer = np.zeros(5*5, dtype=np.float32)
self.prev_brake_5ms2_probs = np.zeros(5, dtype=np.float32)
self.prev_brake_3ms2_probs = np.zeros(3, dtype=np.float32)
def fill_xyzt(builder, t, x, y, z, x_std=None, y_std=None, z_std=None):
builder.t = t
builder.x = x.tolist()
builder.y = y.tolist()
builder.z = z.tolist()
if x_std is not None: builder.xStd = x_std.tolist()
if y_std is not None: builder.yStd = y_std.tolist()
if z_std is not None: builder.zStd = z_std.tolist()
def fill_xyvat(builder, t, x, y, v, a, x_std=None, y_std=None, v_std=None, a_std=None):
builder.t = t
builder.x = x.tolist()
builder.y = y.tolist()
builder.v = v.tolist()
builder.a = a.tolist()
if x_std is not None: builder.xStd = x_std.tolist()
if y_std is not None: builder.yStd = y_std.tolist()
if v_std is not None:builder.vStd = v_std.tolist()
if a_std is not None:builder.aStd = a_std.tolist()
def fill_model_msg(msg: capnp._DynamicStructBuilder, net_output_data: Dict[str, np.ndarray], publish_state: PublishState,
vipc_frame_id: int, vipc_frame_id_extra: int, frame_id: int, frame_drop: float,
timestamp_eof: int, timestamp_llk: int, model_execution_time: float,
nav_enabled: bool, valid: bool) -> None:
frame_age = frame_id - vipc_frame_id if frame_id > vipc_frame_id else 0
msg.valid = valid
modelV2 = msg.modelV2
modelV2.frameId = vipc_frame_id
modelV2.frameIdExtra = vipc_frame_id_extra
modelV2.frameAge = frame_age
modelV2.frameDropPerc = frame_drop * 100
modelV2.timestampEof = timestamp_eof
modelV2.locationMonoTime = timestamp_llk
modelV2.modelExecutionTime = model_execution_time
modelV2.navEnabled = nav_enabled
# plan
position = modelV2.position
fill_xyzt(position, T_IDXS, *net_output_data['plan'][0,:,Plan.POSITION].T, *net_output_data['plan_stds'][0,:,Plan.POSITION].T)
velocity = modelV2.velocity
fill_xyzt(velocity, T_IDXS, *net_output_data['plan'][0,:,Plan.VELOCITY].T)
acceleration = modelV2.acceleration
fill_xyzt(acceleration, T_IDXS, *net_output_data['plan'][0,:,Plan.ACCELERATION].T)
orientation = modelV2.orientation
fill_xyzt(orientation, T_IDXS, *net_output_data['plan'][0,:,Plan.T_FROM_CURRENT_EULER].T)
orientation_rate = modelV2.orientationRate
fill_xyzt(orientation_rate, T_IDXS, *net_output_data['plan'][0,:,Plan.ORIENTATION_RATE].T)
# lane lines
modelV2.init('laneLines', 4)
for i in range(4):
lane_line = modelV2.laneLines[i]
fill_xyzt(lane_line, T_IDXS, np.array(X_IDXS), net_output_data['lane_lines'][0,i,:,0], net_output_data['lane_lines'][0,i,:,1])
modelV2.laneLineStds = net_output_data['lane_lines_stds'][0,:,0,0].tolist()
modelV2.laneLineProbs = net_output_data['lane_lines_prob'][0,1::2].tolist()
# road edges
modelV2.init('roadEdges', 2)
for i in range(2):
road_edge = modelV2.roadEdges[i]
fill_xyzt(road_edge, T_IDXS, np.array(X_IDXS), net_output_data['road_edges'][0,i,:,0], net_output_data['road_edges'][0,i,:,1])
modelV2.roadEdgeStds = net_output_data['road_edges_stds'][0,:,0,0].tolist()
# leads
modelV2.init('leadsV3', 3)
for i in range(3):
lead = modelV2.leadsV3[i]
fill_xyvat(lead, LEAD_T_IDXS, net_output_data['lead'][0,i,:,0], net_output_data['lead'][0,i,:,1], net_output_data['lead'][0,i,:,2], net_output_data['lead'][0,i,:,3],
net_output_data['lead_stds'][0,i,:,0], net_output_data['lead_stds'][0,i,:,1], net_output_data['lead_stds'][0,i,:,2], net_output_data['lead_stds'][0,i,:,3])
lead.prob = net_output_data['lead_prob'][0,i].tolist()
lead.probTime = LEAD_T_OFFSETS[i]
# confidence
# TODO
modelV2.confidence = 0
# meta
meta = modelV2.meta
meta.desireState = net_output_data['desire_state'][0].reshape(-1).tolist()
meta.desirePrediction = net_output_data['desire_pred'][0].reshape(-1).tolist()
meta.engagedProb = net_output_data['meta'][0,Meta.ENGAGED].item()
meta.init('disengagePredictions')
disengage_predictions = meta.disengagePredictions
disengage_predictions.t = META_T_IDXS
disengage_predictions.brakeDisengageProbs = net_output_data['meta'][0,Meta.BRAKE_DISENGAGE].tolist()
disengage_predictions.gasDisengageProbs = net_output_data['meta'][0,Meta.GAS_DISENGAGE].tolist()
disengage_predictions.steerOverrideProbs = net_output_data['meta'][0,Meta.STEER_OVERRIDE].tolist()
disengage_predictions.brake3MetersPerSecondSquaredProbs = net_output_data['meta'][0,Meta.HARD_BRAKE_3].tolist()
disengage_predictions.brake4MetersPerSecondSquaredProbs = net_output_data['meta'][0,Meta.HARD_BRAKE_4].tolist()
disengage_predictions.brake5MetersPerSecondSquaredProbs = net_output_data['meta'][0,Meta.HARD_BRAKE_5].tolist()
publish_state.prev_brake_5ms2_probs[:-1] = publish_state.prev_brake_5ms2_probs[1:]
publish_state.prev_brake_5ms2_probs[-1] = net_output_data['meta'][0,Meta.HARD_BRAKE_5][0]
publish_state.prev_brake_3ms2_probs[:-1] = publish_state.prev_brake_3ms2_probs[1:]
publish_state.prev_brake_3ms2_probs[-1] = net_output_data['meta'][0,Meta.HARD_BRAKE_3][0]
hard_brake_predicted = (publish_state.prev_brake_5ms2_probs > FCW_THRESHOLDS_5MS2).all() and (publish_state.prev_brake_3ms2_probs > FCW_THRESHOLDS_3MS2).all()
meta.hardBrakePredicted = hard_brake_predicted.item()
# temporal pose
temporal_pose = modelV2.temporalPose
temporal_pose.trans = net_output_data['sim_pose'][0,:3].tolist()
temporal_pose.transStd = net_output_data['sim_pose_stds'][0,:3].tolist()
temporal_pose.rot = net_output_data['sim_pose'][0,3:].tolist()
temporal_pose.rotStd = net_output_data['sim_pose_stds'][0,3:].tolist()
def fill_pose_msg(msg: capnp._DynamicStructBuilder, net_output_data: Dict[str, np.ndarray],
vipc_frame_id: int, vipc_dropped_frames: int, timestamp_eof: int, live_calib_seen: bool) -> None:
msg.valid = live_calib_seen & (vipc_dropped_frames < 1)
cameraOdometry = msg.cameraOdometry
cameraOdometry.frameId = vipc_frame_id
cameraOdometry.timestampEof = timestamp_eof
cameraOdometry.trans = net_output_data['pose'][0,:3].tolist()
cameraOdometry.rot = net_output_data['pose'][0,3:].tolist()
cameraOdometry.wideFromDeviceEuler = net_output_data['wide_from_device_euler'][0,:].tolist()
cameraOdometry.roadTransformTrans = net_output_data['road_transform'][0,:3].tolist()
cameraOdometry.transStd = net_output_data['pose_stds'][0,:3].tolist()
cameraOdometry.rotStd = net_output_data['pose_stds'][0,3:].tolist()
cameraOdometry.wideFromDeviceEulerStd = net_output_data['wide_from_device_euler_stds'][0,:].tolist()
cameraOdometry.roadTransformTransStd = net_output_data['road_transform_stds'][0,:3].tolist()