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RS485-based power station main and standby communication method and system

A RS485, communication method technology, applied in the field of communication, can solve the problems of the standby equipment being unable to obtain information, unable to connect to the standby server, affecting the system operation, etc.

Pending Publication Date: 2022-04-26
浙江南都能源互联网有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, RS485 often cannot be active and standby due to hardware limitations during communication. As a result, after the main equipment in the energy management system fails, the standby equipment cannot obtain information, which affects system operation.
The current energy storage power station requires the energy management system to support active and standby to achieve high reliability, but some equipment in the power station does not support active and standby communication, such as electric meters, which only support RS485 communication, and RS485 can only be connected to one energy After the server cannot connect to the standby server

Method used

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  • RS485-based power station main and standby communication method and system
  • RS485-based power station main and standby communication method and system
  • RS485-based power station main and standby communication method and system

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Embodiment Construction

[0023] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0024] It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

[0025] Please combine figure 1 , the present invention discloses a method and system based on RS485 active / standby communication. T...

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Abstract

The invention discloses a main and standby communication method and system based on a power station RS485, and the method comprises the steps: carrying out the communication between a main server and RS485 equipment through an RS485 communication line, and enabling a standby server to be connected with the RS485 equipment through connecting an RS485 line to an RS485 line for the communication between the main server and the RS485 equipment; when the main server is normal, two-way communication is set between the main server and the RS485 equipment, the main server synchronously requests a message to the standby server, and the standby server only receives information; when the main server breaks down and is recovered, the main server only receives information, the standby server and the RS485 equipment are in two-way communication, and the standby server synchronously requests messages to the main server recovered after the main server breaks down. And carrying out received message consistency judgment according to the received synchronization request message so as to synchronize RS485 equipment information. The normal main server sends a request to the RS485 equipment, the standby server only receives the request and does not send the request, and RS485 equipment information synchronization of the main server and the standby server is completed in a message comparison mode.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and system for active and standby communication of power stations based on RS485 Background technique [0002] At present, RS485 often cannot be active and standby due to hardware limitations during communication. As a result, after the main equipment fails in the energy management system, the standby equipment cannot obtain information, which affects the operation of the system. The current energy storage power station requires the energy management system to support active and standby to achieve high reliability, but some equipment in the power station does not support active and standby communication, such as electric meters, which only support RS485 communication, and RS485 can only be connected to one energy After that, the server cannot connect to the standby server. Contents of the invention [0003] One of the invention objects of the present in...

Claims

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Application Information

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IPC IPC(8): H04L41/0663
CPCH04L41/0663
Inventor 斯元海谭建国曹晓东吴贤章
Owner 浙江南都能源互联网有限公司
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