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Escalator safety control system and method

A technology for safety control and escalators, applied in escalators, transportation and packaging, etc., can solve problems such as escalator failure to start or stop, long escalator stop time, and low efficiency in dealing with failures

Active Publication Date: 2021-09-21
HANGZHOU XO ELEVATOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in order to quickly troubleshoot the fault, the main board has several fault monitoring points to collect the status of the safety switch through the connection line. Due to the limitation of the IO port of the escalator main board, the traditional technology will connect several points as a fault point segment to the escalator main board for monitoring. When the escalator reports a failure in a certain section, the maintenance personnel will check several switches of the section
At the same time, if only the fault monitoring point of the main board or the connection line connected to the safety circuit is abnormal, but the safety switch is not disconnected, the traditional escalator will also fail to start or stop. check all
Both of the above situations will lead to long escalator downtime and low efficiency in dealing with failures

Method used

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  • Escalator safety control system and method
  • Escalator safety control system and method
  • Escalator safety control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: When the escalator is stopped, the first safety switch mainly drives the tension switch to act. When this switch is activated, the S2 switch state collection point port is powered off, the rear end is powered off, the escalator ready to run input port is powered off, and the escalator cannot be started. The safety fault acquisition point P2-1 connected to the S2 terminal loses power at the same time, the safety switch acquisition board sequentially scans this point and there is no input, reports the corresponding fault, and at the same time sends the fault information and the status of the escalator stop to the main controller through CAN communication device, the main control device is combined with the power-off state of the escalator’s ready-to-run input port, the main control device will display the action failure of the main drive tension switch, and at the same time feed back the fault information and the stop status of the escalator to the safety swi...

Embodiment 2

[0059] Embodiment 2: In the running state of the escalator, the fan cover of the main engine of the third safety switch is activated. When this switch is activated, the S4 switch state collection point port is powered off, the back end is powered off, the escalator ready to run input port is powered off, the escalator main board controls the escalator contactor output circuit to disconnect, the escalator contactor is disconnected, and the escalator stops. The fault collection point P2-3 connected to the S4 switch state collection point port loses power at the same time. The safety switch collection board sequentially scans this point and there is no input, and reports the corresponding fault. At the same time, the fault information is sent to the main control device through CAN communication. When the control device is combined with the power-off state of the escalator’s ready-to-run input port, the main control device will display the action failure of the fan cover of the mai...

Embodiment 3

[0060] Example 3: When the escalator is stopped, all safety switches are normal, and the collection branch of the safety fault collection point P2-1 falls off, the safety switch collection board will not be able to scan the signal at this point, and the LED display of the safety switch collection board shows the action of the main drive tension switch At the same time, the fault information will be sent to the main control device through CAN communication, and the escalator will not start. At the same time, the main control device and the escalator are ready to run. , and send this information and the status of the escalator stop to the safety switch acquisition board by means of CAN communication. The MODBUSRUT protocol is sent to the upper computer in the remote monitoring room. The upper computer in the monitoring room will display the status information of the abnormality of the escalator acquisition board and the stop of the escalator. The personnel in the monitoring room ...

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PUM

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Abstract

The present application relates to an escalator safety control system and method, including an escalator safety circuit and a main control device, a plurality of safety switches connected in series in the escalator safety circuit, and the main control device is connected with the escalator safety circuit to detect The on-off of the escalator safety loop, the escalator safety control system is also provided with a safety switch acquisition board, the escalator safety loop is provided with a switch state collection point port for each safety switch, each switch state collection point port Connect to the safety switch acquisition board through separate acquisition branches, the safety switch acquisition board obtains corresponding safety fault acquisition point signals through each acquisition branch, and the safety switch acquisition board also communicates with the main control device connected to send the safety fault collection point signal for the main control device to control the running or stopping of the escalator accordingly. In this manner, the efficiency of handling escalator failures can be improved.

Description

technical field [0001] The present application relates to the technical field of escalator safety, in particular to an escalator safety control system and method. Background technique [0002] The escalator is a common special equipment in the field of public transportation. It has certain mechanical and electrical risks, such as the chain of the direct drive step is broken or overgrown, the step enters the comb plate with foreign objects caught, and the entrance of the handrail is caught with foreign objects , cascade subsidence, and motor overload and overheating. In order to minimize the risk, the relevant standards stipulate that an electrical safety switch should be set up to judge the status of each risk point. [0003] These safety switches are connected in series to form a loop, and the end of the loop is connected to the escalator ready-to-run input port. If any safety switch is activated, the escalator ready-to-run input port loses power, and the escalator cannot s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B29/00
CPCB66B29/00
Inventor 周霖高亚明周予同
Owner HANGZHOU XO ELEVATOR