METHOD AND CONTROL DEVICE FOR MONITORING TRAVEL MOVEMENTS OF AN ELEVATOR CAR
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Abstract
A method and control device for monitoring travel movements of an elevator car utilize an electronic control device positioned at the car. Travel movements of the elevator car are travels, speeds or accelerations of the car. At least individual travel movements are subject to redundant detection for the purpose of monitoring. Either the travels or the speeds are redundantly detected and the accelerations singularly detected, or alternatively the accelerations are redundantly detected and the travels or the speeds are singularly detected, or preferably the travels or the speeds and the accelerations are redundantly detected. The electronic control device is preferably arranged at the support rollers of the elevator car.
30 Citations
35 Claims
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1-14. -14. (canceled)
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15. A method of monitoring travel movements of an elevator car, wherein travels, speeds and accelerations represent the travel movements of the elevator car, comprising the steps of:
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detecting values of the accelerations redundantly; detecting values of the travels or the speeds singularly or redundantly; and checking the detected values for at least one of plausibility, error and exceeding a threshold value, and indicating the at least one of the plausibility, the error and the exceeding a threshold value of the detected values. - View Dependent Claims (16, 17, 18, 19, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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20. A method of monitoring travel movements of an elevator car, wherein travels, speeds and accelerations represent the travel movements of the elevator car, comprising the steps of:
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detecting values of at least one of the travels, the speeds and the accelerations redundantly, wherein the travel values or the speed values are detected redundantly and the acceleration values are detected singularly, or the acceleration values are detected redundantly and the travel values or the speed values are detected singularly, or the travel values or the speed values are detected redundantly and the acceleration values are detected redundantly; executing an error check with error system algorithms comparing behavior of the redundantly detected travel values, speed values or acceleration values with one another or comparing calculated equivalent values thereof with one another; and indicating at least one of plausibility and error of the checked values. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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Specification