Remote monitor for elevator

Abstract

A remote monitoring system for elevator has a plurality of remote monitors for individually monitoring the running states of a plurality of elevators installed in a building, transmits running state data from the remote monitoring system via a communal public telephone line to a communal monitoring center, and allows communication between interphones, provided in the carriages of the elevators, and the monitoring center via the public telephone line. Each of the plurality of remote monitors comprises a memory unit which stores incoming time data of different incoming times, the remote monitor performing incoming controls after independently determining call signals from the monitoring center, based on the incoming time data stored in the memory unit. Furthermore, a first switching unit cuts off the auxiliary power when there has been no irregularity in the monitoring information of the elevator after the operating power has been supplied for a fixed period of time from an auxiliary power instead of the main power when the main power fails; and a second switching unit is driven by power from an interphone battery, and re-injects the auxiliary power when an emergency call button has been pressed.

Description

technical field [0001] The invention relates to a remote monitoring device for an elevator. [0002] More specifically, it relates to a remote monitoring device for an elevator, which includes an auxiliary power supply that replaces the main power supply to supply working power when the main power supply fails, a walkie-talkie battery for the walkie-talkie installed in the elevator car, and monitors the operation of the elevator. The device that sends the operating status to the monitoring center of the elevator maintenance organization through the public telephone line network, and the device that can communicate between the walkie-talkie and the monitoring center by pressing the emergency call button set in the elevator car. [0003] The present invention also relates to a remote monitoring system for elevators, which has multiple sets of remote monitoring devices for respectively monitoring the operating states of a plurality of elevators installed in a building, and sends ...

AI Technical Summary

Problems solved by technology

[0037] But, when the passenger 36 in the elevator car 3 wants to obtain additional information from the operator of the monitoring center 38, it must be reported to the elevator car 3 from the monitoring center 38.

If such a situation occurs simultaneously in a plurality of remote monitoring devices 2 sharing the public telephone line 8, the sending of a call from the monitoring center 38 of the elevator maintenance company 9 is wasted before being received by the remote monitoring device 2 in charge of the desired elevator. a lot of time

[0038] On the other hand, although the method of enabling local communication between multiple remote monitoring devices 2 improves the above-mentioned problems, there is a problem of reliability in communication between multiple remote monitoring devices 2A, 2B, and 2C.

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