Elevator control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 25, 1990
Grant Date -
N/A
app pub date -
Mar 29, 1989
filing date -
Mar 30, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elevator control system comprises an elevator controller for controlling the running of a cage and a plurality of input/output terminal equipments for controlling devices provided at a landing place on each floor and/or in the cage, each of the elevator controller and the plurality of input/output terminal equipments including a transmission controller provided with a transmission circuit and a reception circuit so that the elevator controller and the plurality of input/output terminal equipments are connected to each other through transmission lines, wherein each of the elevator controller and the plurality of input/output terminal equipments is provided with an abnormality detector for detecting an abnormality and a transmission stopping device for inhibiting transmission through the transmission circuit of its own transmission controller upon detection of occurrence of an abnormality by the abnormality detector.
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