752afc3f00
- Split clocks: detector timers/cooldowns run on a MONOTONIC clock (immune to an NTP step on an RTC-less Pi); wall time is used only for the HMAC X-Timestamp and Event.occurred_at. Fixes false IMMOBILITY / dropped tracks after a clock jump. - Heartbeat is time-based (30s, predictable regardless of load) and now carries temp/throttle/queue_pending/config_version telemetry. - A dead (no-frame) camera counts as erroring instead of a healthy frame, so a silent monitoring outage no longer looks green. - Offline queue: isolate one undecodable row instead of wedging every event behind it; classify 401 (stale clock) as transient, never a poison-drop. - New edge/health.py: vcgencmd temp/throttle parsing, None off-Pi (no fake 0).
77 lines
3.1 KiB
Python
77 lines
3.1 KiB
Python
from edge.config import Config
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from edge.tracking import IouTracker
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from edge.smoothing import TrackSmootherPool
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from edge.detectors.fall import FallDetector
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from edge.detectors.immobility import ImmobilityWatchdog
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from edge.detectors.ghost import GhostIncidentDetector
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from edge.detectors.zone import ZoneIntrusionDetector
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from edge.engine import EventEngine
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from edge.snapshot import RingBuffer, FaceBlurrer, Snapshotter
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from edge.models import BBox
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def _head_boxes(persons: list) -> list:
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# Head region for face anonymization (PIPA). Sized from the PERSON bbox, not a fixed
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# ~40x40 patch — a close worker fills far more than 40px, so a constant box left the face
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# fully identifiable. Centered on the nose when it is confident, else on the bbox's top
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# (the head is the upper part of the person) so a bad keypoint can't move the blur off it.
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boxes = []
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for p in persons:
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bb = p.bbox
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nose = p.keypoints[0]
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half_w = max(8.0, 0.25 * bb.width)
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if nose.conf >= 0.3:
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cx, cy = nose.x, nose.y
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else:
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cx, cy = bb.cx, bb.y1 + 0.12 * bb.height
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boxes.append(BBox(cx - half_w, cy - 0.18 * bb.height,
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cx + half_w, cy + 0.08 * bb.height))
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return boxes
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def run_once(source, pose, tracker, pool, engine, ring, snapshotter, sink, now_fn, wall_fn=None):
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ok, frame = source.read()
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if not ok:
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# No frame this tick. Return None (not []) so the daemon can tell "camera produced no
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# frame" apart from "frame processed, no events" — a dead/unplugged USB camera returns
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# (False, None) forever, and counting it as a healthy frame made a monitoring outage
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# look perfectly green (fps~=target, cameras_erroring=0).
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return None
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now = now_fn()
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persons = pose.infer(frame)
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tracks = tracker.update(persons, now) # RAW keypoints; smoothing happens per-track below
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lost = tracker.lost()
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for tr in tracks:
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f = tr.latest
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f.keypoints = pool.smoother_for(tr.track_id).smooth(f.keypoints, now)
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ring.push(now, frame)
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h, w = frame.shape[:2]
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# `now` (monotonic) drives detector timers; wall time stamps the event (occurred_at). Off the
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# daemon (direct callers / tests) wall_fn is None → engine falls back to now, as before.
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wall_now = wall_fn() if wall_fn is not None else None
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events = engine.process(tracks, lost, now, frame_wh=(w, h), wall_now=wall_now)
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for tr in lost:
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pool.forget(tr.track_id)
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if events:
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snaps = snapshotter.capture([frame], [_head_boxes(persons)])
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for e in events:
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sink.try_send(e, snaps)
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return events
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def build_pipeline(config: Config, source, pose) -> dict:
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return {
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"source": source,
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"pose": pose,
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"tracker": IouTracker(),
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"pool": TrackSmootherPool(),
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"engine": EventEngine(
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FallDetector(config.fall),
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ImmobilityWatchdog(config.immobility),
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GhostIncidentDetector(config.ghost),
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ZoneIntrusionDetector([], config.zone),
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config.engine,
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),
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"ring": RingBuffer(),
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"snapshotter": Snapshotter(FaceBlurrer()),
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}
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