Files
StarPilot/starpilot/system/stinger_object_shadow.py
T
firestar5683 7848a0090a Soup
2026-10-01 21:08:43 -05:00

105 lines
4.7 KiB
Python

"""Opt-in, read-only Stinger object logging. Never publishes control or radar data."""
import math
import time
from collections import deque
from dataclasses import asdict
from openpilot.tools.car_porting.stinger_object_tracks import MAX_EGO_AGE_NS, SLOT_COUNT, StingerObjectDecoder
PLATFORM = "KIA_STINGER_2022"
LOG_INTERVAL_NS = 500_000_000
MAX_OBJECT_AGE_NS = 100_000_000
class StingerObjectShadow:
def __init__(self, openpilot_longitudinal: bool):
self.openpilot_longitudinal = openpilot_longitudinal
self.decoder = StingerObjectDecoder()
self.ego_history = deque(maxlen=128)
self.objects: dict[int, dict] = {}
self.scc = None
self.object_count = 0
self.last_log_ns = None
def update_ego(self, timestamp_ns: int, speed: float, cruise_enabled: bool, brake_pressed: bool, steering_angle: float):
if not math.isfinite(speed) or not math.isfinite(steering_angle):
return
if self.ego_history and timestamp_ns <= self.ego_history[-1]["timestamp_ns"]:
return
self.ego_history.append({"timestamp_ns": timestamp_ns, "speed": speed, "cruise_enabled": cruise_enabled,
"brake_pressed": brake_pressed, "steering_angle": steering_angle})
def update_can(self, timestamp_ns: int, address: int, dat: bytes, bus: int):
if bus == 0 and address == 0x420 and len(dat) == 8:
raw = int.from_bytes(dat, "little")
self.scc = {"timestamp_ns": timestamp_ns, "payload": dat.hex(), "main_mode": bool(raw & 1),
"object_valid": bool((raw >> 16) & 1), "object_status": (raw >> 22) & 3,
"distance": ((raw >> 33) & 0x7ff) * 0.1,
"relative_speed": ((raw >> 44) & 0xfff) * 0.1 - 170.0}
obj = self.decoder.update(timestamp_ns, address, dat, bus)
if obj is None:
return
ego = next((sample for sample in reversed(self.ego_history)
if 0 <= timestamp_ns - sample["timestamp_ns"] <= MAX_EGO_AGE_NS), None)
self.objects[obj.slot] = {"timestamp_ns": timestamp_ns, **asdict(obj),
"ego_timestamp_ns": ego["timestamp_ns"] if ego else None,
"ego_speed": ego["speed"] if ego else None,
"relative_speed": obj.relative_speed(ego["speed"]) if ego else None}
self.object_count += 1
def snapshot(self, timestamp_ns: int) -> dict | None:
if self.last_log_ns is not None and timestamp_ns - self.last_log_ns < LOG_INTERVAL_NS:
return None
self.last_log_ns = timestamp_ns
self.objects = {slot: obj for slot, obj in self.objects.items()
if 0 <= timestamp_ns - obj["timestamp_ns"] <= MAX_OBJECT_AGE_NS}
assert len(self.objects) <= SLOT_COUNT
scc = self.scc if self.scc and 0 <= timestamp_ns - self.scc["timestamp_ns"] <= MAX_OBJECT_AGE_NS else None
ego = self.ego_history[-1] if self.ego_history else None
if ego and not 0 <= timestamp_ns - ego["timestamp_ns"] <= MAX_EGO_AGE_NS:
ego = None
return {"timestamp_ns": timestamp_ns, "platform": PLATFORM, "shadow_only": True,
"openpilot_longitudinal": self.openpilot_longitudinal, "decoded_objects_total": self.object_count,
"objects": [self.objects[slot] for slot in sorted(self.objects)], "car_state": ego,
"scc11": scc, "scc11_independent_reference": scc is not None and not self.openpilot_longitudinal}
def main():
from cereal import car, messaging
from openpilot.common.params import Params
from openpilot.common.swaglog import cloudlog
params = Params()
cp_bytes = params.get("CarParams")
if cp_bytes is None or not params.get_bool("StingerObjectShadow") or params.get_bool("DisableLogging"):
return
with car.CarParams.from_bytes(cp_bytes) as CP:
if CP.carFingerprint != PLATFORM or CP.notCar:
return
collector = StingerObjectShadow(CP.openpilotLongitudinalControl)
can_sock = messaging.sub_sock("can", timeout=100)
sm = messaging.SubMaster(["carState"])
cloudlog.event("stinger_object_shadow_start", platform=PLATFORM, shadow_only=True)
while True:
sm.update(0)
if sm.updated["carState"] and sm.valid["carState"]:
CS = sm["carState"]
collector.update_ego(sm.logMonoTime["carState"], CS.vEgo, CS.cruiseState.enabled, CS.brakePressed, CS.steeringAngleDeg)
for event in messaging.drain_sock(can_sock, wait_for_one=True):
if event.which() == "can" and event.valid:
for msg in event.can:
collector.update_can(event.logMonoTime, msg.address, bytes(msg.dat), msg.src)
snapshot = collector.snapshot(time.monotonic_ns())
if snapshot is not None:
if not params.get_bool("StingerObjectShadow") or params.get_bool("DisableLogging"):
return
cloudlog.event("stinger_object_shadow", **snapshot)
if __name__ == "__main__":
main()