VLM output
An elevated wide shot of a large open concrete deck on an active construction site, where dozens of workers in high-visibility vests and hard hats move about, kneel at work positions, and handle formwork panels and rebar near stacked materials, a towing compressor, and pink barriers. Over the four frames small groups of workers walk across the deck and cluster around the formwork area on the left while the rest of the scene stays largely unchanged.
- High-Visibility Vest ComplianceMostly
- Hard Hat ComplianceMostly
- Non-Compliant Workers DetectedYes
- Worker Count35-45
- Active Work ZoneYes
- Heavy Machinery ActiveNo
- Barriers Or Guardrails PresentYes
- Trip Hazards VisibleYes
- Site Activity LevelHigh
Customer challenges
PPE non-compliance drives injuries and citations, and manual checks can't cover a large, changing site; open sites are hard to secure, so intrusion and entry into danger zones risk injury, theft, and liability; and loitering can signal theft or trespass but can't be tracked manually across a large site.
Customer benefits
More consistent safety compliance, reduced unauthorized access, improved security, and lower operational and liability risk.
Key features
PPE Detection
Checks whether workers wear the required protective equipment.
Unauthorized Access Detection
Detects entry into restricted or closed site areas.
Loitering & Dwelling
Flags people lingering in an area longer than expected.
Before & after
| Before | After — with Linker AI Nexa |
|---|---|
| Before PPE compliance, restricted zones, and suspicious activity depend on periodic inspections and manual security patrols. | After — with Linker AI Nexa AI continuously checks compliance and site activity, automatically flagging PPE violations, unauthorized access, and suspicious dwelling. |