The operator's daily clicks become durable assets:
Label export (GET /api/export/labels?days=N, JSONL download):
- Every 확인/오탐 click is a human verdict on a detection, and each verdict
carries a blurred 3-frame evidence timeline. The export turns that into a
dataset: one JSON line per event with type/severity/camera/zone/metrics/
spatial, label (confirmed | false_positive | unreviewed), labeled_by, and
snapshot uuids (images fetched via /snap, which re-checks session + site).
ergo_report rows are excluded - statistics are not labelable detections.
- Admin-only ('manage_compliance'): bulk export of detection history is a
compliance decision, not an operator convenience. Site scope applies.
- This is where the deferred P1-C evaluation set will come from for free.
Improvement actions (move_actions + GET/POST /api/actions):
- Record a site fix against a camera ("미끄럼 방지 매트 설치"); the report's
new card compares detection density over EQUAL windows before/after the
fix (capped 30d; under 3 days shows "측정 중" - two days of data is noise,
not a verdict). Improvement shows accent, worsening shows red - the card
reports honestly in both directions, which is exactly what makes the
improvement numbers credible.
- Future timestamps and >1y-old entries are rejected (the comparison could
not be fair). Recording needs edit_zones + CSRF.
Verified: PHPUnit 145 pass (5 new: export perm gate + line shape/labels/
snapshot join, action validation, equal-window effect math, pending state)
+ Chrome real-render (action card with better/worse/pending rows, export
link, no console errors).
The accumulated data starts predicting instead of just recording:
- Time pattern (weekday x hour density grid): WHEN the site is dangerous, on
one card - shift-change, post-lunch, Thursday-afternoon hotspots become
visible. Bucketing runs in PHP on the server-local clock (site timezone)
so the SQL stays portable (the sqlite harness has no FROM_UNIXTIME).
- Precursor-spike alert: last-7-days count of precursor signals (near-miss,
zone entries, occupancy violations - signals, not injuries) vs the prior
4-week weekly baseline. Ratio >= 1.5 with at least 5 samples raises a
banner above the KPIs: an alarm on the PRECURSOR of an accident, with a
concrete suggestion (staffing/route/rest review). Below the sample floor
it never fires - a ratio over 2 events is noise, not statistics.
- Period-over-period trends on every KPI: reportSummary gained an optional
upper bound so the identical aggregation runs over the preceding window.
Worsening turns red, improving turns accent - except the near-miss count,
which stays NEUTRAL: more near-misses may mean better detection, not more
danger, and the report must not editorialize that.
Verified: PHPUnit 140 pass (2 new: window separation + pattern bucketing,
spike ratio + sample floor) + Chrome real-render (alert banner, KPI trend
lines, Thursday-afternoon hotspot readable in the grid).
The benefit made visible: /report folds everything the system collects into
the one printable page a 안전관리자 takes into the weekly safety meeting.
- GET /api/report?days=N (7/30/90): severity totals, per-type counts,
worst-camera ranking, response time (TTA - acknowledged critical/high only,
FP-tagged rows excluded: dismissing a false alarm is not an emergency
response; clock-skew guarded), the near-miss pyramid (near_fall vs
fall/no_motion - the Heinrich argument in one ratio), FP rate, summed
posture-load exposure, occupancy-rule violation counts. ergo_report rows
feed the sums but are excluded from "감지 N건" (bookkeeping, not detection).
Fail-closed site scoping throughout.
- /report view: KPI band (중대 이벤트 / 평균 대응 / 니어미스:사고 / 오탐율,
each with its one-line reading), bar lists for types and cameras (critical
presence highlighted), ergo bands as share-of-observed-time, rule tiles.
Print CSS strips the app chrome - the 인쇄 button produces the meeting
handout. New 리포트 nav tab.
- Events console: event-type filter beside severity - the INFO-volume types
(near_fall, ergo_report) can now be folded out of the live stream, or a
single type isolated for investigation.
Verified: PHPUnit 138 pass (3 new: aggregation math incl. TTA/FP-exclusion/
ergo sums, site scope, auth) + Chrome real-render of the full report (KPIs,
bar lists, rule tiles, footer) and the type filter isolating one type.
