W4f: a Wysiwyg Web Wrapper Factory for Minute-made Wrappers
نویسندگان
چکیده
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. U.S. REFERENCES: (No patents reference this one) Patent Inventor Issued Title 3973648 Hummert et al. 8 /1976 Monitoring system for elevator installation 4568909 Whynacht 2 /1986 Remote elevator monitoring system 4622538 Whynacht et al. 11 /1986 Remote monitoring system state machine and method 4727499 Tsuji 2 /1988 Service estimation apparatus for elevator 4750591 Coste et al. 6 /1988 Elevator car door and motion sequence monitoring apparatus and method 4930604 Schienda et al. 6 /1990 Elevator diagnostic monitoring apparatus 5235143 Bajat et al. 8 /1993 Elevator system having dynamically variable door dwell time based upon average waiting time 5445245 Ketoviita 8 /1995 System for remote control of elevator equipment EXEMPLARY CLAIM(s): Show all 36 claims What is claimed is: 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. RELATED U.S. APPLICATIONS: none FOREIGN APPLICATION PRIORITY DATA: none FOREIGN REFERENCES: Document No. Country Date Intl. Class WO9608437 WIPO 3 /1996 B66B 003/00
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