Traccar Gaps #4

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kyle · 2026-02-07T15:37:56-08:00

kyle commented

2026-02-07 15:37:56 -08:00

I am not certain what the issue is with this in Traccar or what, but the drivers phone had pretty good fidelity for some parts of the trip, but for other parts of the trip it did not and it made it look like the user took straight trips like they were teleporting from site to site. I'd like to get more frequent pings to show more fidelity on movement. This has implications for mileage.

<img width="485" alt="image.png" src="attachments/25db5be0-c1b4-4d1a-929e-58aea058edf7"> I am not certain what the issue is with this in Traccar or what, but the drivers phone had pretty good fidelity for some parts of the trip, but for other parts of the trip it did not and it made it look like the user took straight trips like they were teleporting from site to site. I'd like to get more frequent pings to show more fidelity on movement. This has implications for mileage.

image.png

340 KiB

kyle commented

2026-02-07 22:36:17 -08:00

Implemented in this deploy:

Root Cause: syncPositions() was calling getAllPositions() which only returns the LATEST position per device, discarding all intermediate positions Traccar stored.

Fix - Backend:

Changed cron from EVERY_MINUTE to EVERY_30_SECONDS
Rewrote syncPositions() to call getPositionHistory(deviceId, since, now) per device
Uses device.lastActive with 5s overlap buffer as the 'since' parameter
Batch inserts via createMany({ skipDuplicates: true })
Added @@unique([deviceId, timestamp]) constraint to prevent duplicates
Per-device error handling so one failure doesn't block others

Fix - Frontend:

Lowered update interval minimum from 30s to 10s
Added info tip: 15-30s for active events, 60s for routine use
Note that changing interval only affects new QR enrollments
Reduced map polling from 30s to 15s for smoother updates

Implemented in this deploy: **Root Cause:** syncPositions() was calling getAllPositions() which only returns the LATEST position per device, discarding all intermediate positions Traccar stored. **Fix - Backend:** - Changed cron from EVERY_MINUTE to EVERY_30_SECONDS - Rewrote syncPositions() to call getPositionHistory(deviceId, since, now) per device - Uses device.lastActive with 5s overlap buffer as the 'since' parameter - Batch inserts via createMany({ skipDuplicates: true }) - Added @@unique([deviceId, timestamp]) constraint to prevent duplicates - Per-device error handling so one failure doesn't block others **Fix - Frontend:** - Lowered update interval minimum from 30s to 10s - Added info tip: 15-30s for active events, 60s for routine use - Note that changing interval only affects new QR enrollments - Reduced map polling from 30s to 15s for smoother updates

kyle closed this issue

2026-02-07 22:36:24 -08:00

kyle referenced this issue from a commit

2026-02-07 22:36:59 -08:00

feat: add PDF reports, timezone management, GPS QR codes, and fix GPS tracking gaps

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Reference: kyle/vip-coordinator#4