Handrail tension monitoring device for a passenger transport system
AssigneeInventio AG
InventorMartin ORTBAUER
Life of this patent
Estimating the term…
Abstract
A handrail tension monitoring device for a passenger transport system designed as a moving walkway or escalator can include a distance sensor and a signal processing unit. Measurement signals detected by the distance sensor can be processed and evaluated in the signal processing unit. A vibration frequency of a scanned handrail of the passenger transport system can be determined from the signal curve of the measurement signals and the vibration frequency can be compared with a lower threshold value or upper threshold value. An alarm signal can be generated if the lower threshold value is not reached and a warning signal can be generated if the upper threshold value is exceeded.
Claims13
1-12. (canceled)
A handrail tension monitoring device for a passenger transport system configured as a moving walkway or escalator, the handrail tension monitoring device comprising:
- at least a distance sensor that produces measurement signals;
- and
- a signal processing unit that receives the measurement signals detected by the at least one distance sensor and processes the measurement signals to:
- determine a vibration frequency of a scanned handrail of the passenger transport system from a signal curve of the measurement signals,
- compare the vibration frequency to at least one of a lower threshold value or an upper threshold value, and
- generate an alarm signal if the lower threshold value is not reached and a warning signal if the upper threshold value is exceeded.
Dependencies are inferred from the claim text.