Occupational Safety PPE (Helmet/Vest) Inspection and Voice Warning
Scenario record: it defines the environment, the mission flow and a proposed hardware and software configuration. The list below is a configuration proposal, not an installation inventory. Field projects lists deployed systems and their measurements.
- Environment
- Outdoor field
- Operating mode
- Supervised autonomy
- Proposed robot
- Unitree A2
The problem addressed
OHS inspectors unable to monitor entire site simultaneously; workplace accidents and legal penalties from OHS violations.
Draft mission flow
- 1The robot continuously patrols active work zones on the construction site; AI camera checks each worker's PPE status in real-time.
- 2Polite but firm voice warning given via speaker to workers detected without hard hat, vest, or safety harness.
- 3Violation moment photograph, location, and timestamp instantly reported to OHS portal; repeat violator personnel flagged.
- 4Daily and weekly PPE compliance score generated; riskiest zones and hours analyzed to determine OHS training needs.
Proposed hardware
- HD Optical Camera
- NVIDIA Jetson Orin NX
- High Decibel Speaker
- LED Warning Lights
Proposed software
- Navigation
- Dynamic SLAM avoiding workers and construction equipment in active work zones
- Model
- PPE Detection: Hard Hat, Vest, Goggles, Gloves, Safety Harness Classification (YOLOv8-PPE)
- Integration
- OHS Digital Compliance Portal and Personnel ID System
The robot's real operating limits
Unitree A2
Industrial Class Legged Robot
Product page- Ingress rating
- IP56-IP67
- Runtime
- >5 hours (No load) / >3 hours (25kg Load)
- Operating temperature
- -20°C to 55°C
- Payload
- 100 kg
- Max speed
- 5 m/s
- Climb
- 45°
Values are manufacturer data. Scenario fit is determined by comparing these limits with site conditions.
From scenario to installation
Feasibility is determined by the site survey: floor and route, network coverage, the charging point, intervention responsibilities and the conditions under which the robot must stop. The survey report defines the scope, the constraints and the commissioning steps.