---
type: entity
tags: [parking, hardware, readers, offline-first]
sources: [parking-system-architecture]
updated: 2026-06-14
---

# LPR Camera

License-plate-recognition camera (recommended: **Milesight edge-AI LPR**). For
**casual/transient** vehicles, the **plate acts as ticket + an independent record**. (See
[[parking-system-architecture]] §8, §9.)

- **Edge AI**: recognition runs **on-device**, so it keeps working with no internet — fits
  [[offline-first]].
- It's a **host-side** identity source: only the host sees the read; the host decides and
  commands the relay open (the [[uhppote-controller]] is demoted to a commanded relay for that
  lane). See [[entry-exit-readers]].
- Being host-in-the-loop is **good for fraud detection** — you get two independent records (the
  host's signed [[append-only-event-chain]] entry + the controller's remote-open event) that
  should reconcile one-to-one; any mismatch is an anomaly.
- Mounting: within ~15° of vehicle travel at a controlled chokepoint for best reads.