An elevator system includes a hoistway, an elevator car configured to travel in the hoistway, and a pit located at a bottom of the hoistway. A safety chain is configured to enable or disable motion of the elevator car, and a sensor assembly is configured to initiate opening the safety chain to disable motion of the elevator car upon detection of a person in a detection region of the sensor assembly in the hoistway. A test device is configured to test operation of the sensor assembly to detect malfunctioning and/or tampering of operation of the sensor assembly.
Elevator pit monitoring and integrity check of monitoring system
2024-04-23
Patent
Electronic Resource
English
IPC: | B66B Aufzüge , ELEVATORS |
ELEVATOR PIT MONITORING AND INTEGRITY CHECK OF MONITORING SYSTEM
European Patent Office | 2024
|Elevator pit monitoring and integrity check of monitoring system
European Patent Office | 2024
|