Escalator Mechanical Fault Sound Early Detection
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
- Indoor, public area
- Operating mode
- Supervised autonomy
- Proposed robot
- Unitree AS2
The problem addressed
Escalator faults only detected during periodic maintenance (monthly) and accidents occurring in between.
Draft mission flow
- 1The robot stops at the start and end of each escalator, collecting 10-second acoustic and vibration data.
- 2AI classifies abnormal squeaking, knocking, and wear sounds by comparing motor, gearbox, and chain sounds against reference baseline.
- 3Each escalator assigned a 'health score'; automatic service call opened with maintenance company when score drops.
- 4Escalator shutdown recommendation transmitted to facility management when sudden breakdown risk detected; accident risks eliminated.
Proposed hardware
- Ultrasonic Microphone Array
- Vibration Accelerometer
- HD Optical Camera
- NVIDIA Jetson Orin NX
Proposed software
- Navigation
- SLAM with positioning at escalator start and end points
- Model
- Escalator Motor, Gear and Chain Sound Frequency Analysis; Wear Score Calculation
- Integration
- Mall Facility Management and Escalator Maintenance Service Company API
The robot's real operating limits
Unitree AS2
Industrial Capacity in a Compact Chassis
Product page- Ingress rating
- IP54
- Runtime
- >4 hours (No load)
- Operating temperature
- -20°C to 50°C
- Payload
- Up to 65 kg
- Max speed
- >5 m/s
- Climb
- 40°
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.