IEMI Edge Hub + VisionCam

• Enterprise vision is costly and cloud-heavy → Pi 5 + Hailo-8 hub with a core cost of about $285, events only, one hub for several app packs
• Enterprise parking guidance is priced for big operators → uses 2–4 existing or $40–60 ONVIF cameras, no per-space sensors
• A one-person lab can't support custom camera hardware at scale → buy ONVIF PoE cameras for outdoors; build a ~$30 VisionCam only for indoor or cable-less spots
• Pi 5 has no H.264 hardware decoder → detection runs on 640×360 substreams; main streams are only stream-copied into a RAM ring
• Internet outages blind cloud systems → counting, the sign and the local phone page keep working; events queue for 24 h or more
• Passing cars and occlusion cause false counts → hysteresis on per-space scores; occluded spaces are held, then reported unknown, never free

Clinic or hotel front deskProperty managerDriver who overstaysEdge Hub + cameras

1. 01Trigger: a 2-hour visitor space stays continuously occupied past its limit plus a 10-minute grace
2. 02Detection: the hub's occupancy logic raises an overstay with space ID, start time, duration and one cropped snapshot (plates blurred by default)
3. 03Alert: the cloud rules engine sends SMS/WhatsApp to the front desk
4. 04Action: staff check, place a notice or call the guest, and acknowledge in the app; LotWatch provides evidence only and never calls a tow truck

Outcome: Visitor spaces stay available for visitors, with a time-stamped log for any dispute; about $1,500–4,000/yr per site (est.)