Monitoring of elevator door performance
First Claim
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1. A method for providing an elevator door performance result of an elevator door in an elevator system, said method comprising the steps of:
- determining a reference measure for the elevator door;
determining an acceptable range for a performance measure in response to the reference measure;
providing the performance measure from a door state machine which monitors a plurality of parameter signals provided by the elevator door system, the door state machine following a sequence of elevator door operations;
determining if the performance measure is within the acceptable range; and
providing a performance result by averaging the performance measure with the reference measure if the performance measure is within the acceptable range, wherein the performance measure is not considered in providing the performance result if the performance measure is not within the acceptable range.
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Abstract
An apparatus and method for providing an elevator door performance result of an elevator door in an elevator door system which normally operates sequentially from state-to-state in a closed loop sequential chain of normal operating states is disclosed. A plurality of parameter signals provided by the elevator door system is monitored by the apparatus. The apparatus comprises: a door state sequencer for providing a performance measure; a module for providing a reference measure and an acceptable range; and an abnormal detection module for analyzing the door performance measure.
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Citations
36 Claims
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1. A method for providing an elevator door performance result of an elevator door in an elevator system, said method comprising the steps of:
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determining a reference measure for the elevator door; determining an acceptable range for a performance measure in response to the reference measure; providing the performance measure from a door state machine which monitors a plurality of parameter signals provided by the elevator door system, the door state machine following a sequence of elevator door operations; determining if the performance measure is within the acceptable range; and providing a performance result by averaging the performance measure with the reference measure if the performance measure is within the acceptable range, wherein the performance measure is not considered in providing the performance result if the performance measure is not within the acceptable range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for providing an elevator door performance result of an elevator door in an elevator door system which normally operates sequentially from state-to-state in a closed loop sequential chain of normal operating states, said apparatus monitoring a plurality of parameter signals provided by the elevator door system, said apparatus comprising:
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a door state sequencer for providing a performance measure in response to a plurality of parameter signals provided by the elevator door system; a module for providing a reference measure and an acceptable range for the door performance measure in response to the sequential chain of normal door operating states; and an abnormal detection module for analyzing the door performance measure such that if the door performance measure is within the acceptable range a performance result is provided by averaging the performance measure with the reference measure. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification