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PLC equipment link protection switching method, and PLC equipment

A technology of protection switching and equipment, applied in the field of PLC control, can solve the problems of low reliability and stability, achieve the effects of ensuring reliability and continuity, saving elevator control cables, and improving safety

Active Publication Date: 2017-05-31
深圳市图焌科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a PLC equipment link protection switching method and PLC equipment to solve the technical problem of low reliability and stability caused by the PLC equipment in the prior art transmitting data through a single link

Method used

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  • PLC equipment link protection switching method, and PLC equipment
  • PLC equipment link protection switching method, and PLC equipment

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0025] refer to figure 1 The present invention provides a PLC (Power Line Carrier, i.e. power line communication technology) device, which includes an A-end PLC access device 1 and a B-end PLC access device 2 connected to the A-end PLC access device 1, Both the A-end PLC access device 1 and the B-end PLC access device 2 are provided with a bus interface 100 connected to the elevator control cabinet and the car, a configuration management module 101, and a device for transmitting analog signals or digital signals through carrier waves. The cable transmission carrier function module 102, the communication connection between the bus interface 100, the configuration management module 101 and the cable transmission carrier function module 102...

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Abstract

The invention discloses a PLC equipment link protection switching method, and PLC equipment. The PLC equipment comprises A-end PLC access equipment and B-end PLC access equipment, wherein the A-end PLC access equipment and the B-end PLC access equipment are each provided with a bus interface, a configuration management module, and a cable transmission carrier function module which transmits an analog or digital signal through carriers, and the bus interface, the configuration management module and the cable transmission carrier function module are in communication connection with one another; a work link is arranged between the A-end PLC access equipment and the B-end PLC access equipment, and elevator running data is transmitted between the A-end PLC access equipment and the B-end PLC access equipment through the work link; and a protection link is further arranged between the A-end PLC access equipment and the B-end PLC access equipment, and can replace the work link for data transmission in case of a failure or breakdown of the work link. The PLC equipment link protection switching method and the PLC equipment provided by the invention can solve the technical problem of the conventional PLC equipment that low reliability and stability are caused by single-link data transmission.

Description

technical field [0001] The invention relates to the field of PLC control, in particular to a PLC equipment link protection switching method and PLC equipment. Background technique [0002] The data transmission between the elevator car and the control cabinet can be carried out through PLC (Power Line Carrier, that is, power line communication technology) equipment, and PLC equipment requires a set of PLC equipment (A-side PLC access equipment and B-end PLC access equipment ) to transfer data. In the existing technology, only a single link is used to transmit data between the A-end PLC access device and the B-end PLC access device. Once the transmission link fails or fails, the A-end PLC access device and the B-end Data cannot be transmitted between PLC access devices, resulting in the failure of the entire PLC system to work normally, which directly affects the safety and reliability of the elevator operation. As one of the special equipment, the elevator has requirements ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/54H04L12/24B66B1/34
CPCH04B3/544H04L41/0668B66B1/3461
Inventor 甘业民
Owner 深圳市图焌科技有限公司
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