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Extensible cross redundancy communication interface device and method

An interface device, redundant communication technology, applied in the direction of digital transmission system, error prevention, electrical components, etc., can solve the problems of increased system cost, poor communication reliability, node module failure, etc., to save system cost, reliable communication, simplified The effect of system design

Active Publication Date: 2020-11-10
XUJI GRP +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002]In industrial control, if the "one-to-one" communication method is adopted in the serial communication of large-scale nodes, the communication reliability is poor, and any communication failure, Both will lead to failure of node modules; if the number of data transceiver modules is increased to improve system communication reliability, the system cost will increase exponentially. Assume that the data transceiver modules have monitoring channels for N node modules. If it is connected in the same way, it can only realize the dual redundant monitoring of N / 2 node modules, or the triple redundant monitoring of N / 3 node modules. Therefore, there is an urgent need for a device and device that can realize cross-redundant communication. The method can realize the fault isolation of the data transceiver module and improve the fault tolerance of the key components of the system without changing the number of data transceiver modules and effectively controlling the system cost; realize the redundant monitoring of a given number of node modules and improve the reliable communication of the system sex

Method used

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  • Extensible cross redundancy communication interface device and method

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Experimental program
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Effect test

Embodiment 1

[0048] Such as figure 1 As shown, if it is necessary to realize the dual redundancy of node module communication, then node module 1 and node module 2 monitor each other for communication information (including communication status and communication data), and node module 3 and node module 4 monitor each other for communication information, so as to By analogy, the node module 11 and the node module 12 monitor the communication information; the predetermined 12 high-speed communication interfaces in the data transceiver module are evenly distributed on the two redundant data transceiver modules A and B, and the node module 1 will The communication information between itself and the node module 2 is sent to the 1# high-speed communication port of the data transceiver module A, and the node module 2 sends the communication information between itself and the node module 1 to the 1# high-speed communication port of the data transceiver module B, and so on. The node module 11 sends...

Embodiment 2

[0050] Such as figure 2 As shown, if it is necessary to realize the triple redundancy of node module communication, node module 1, node module 2 and node module 3 monitor the communication information of each other, node module 4, node module 5 and node module 6 monitor the communication information of each other, and so on To the node module 10, the node module 11 and the node module 12 monitor the communication information; the predetermined 12 high-speed communication interfaces in the data transceiver module are evenly distributed in three mutually redundant data transceiver module A, data transceiver module B and data transceiver module On module C, node module 1 sends the communication information of itself, node module 2, and node module 3 to the 1# high-speed communication port of data transceiver module A, and node module 2 sends the communication information of itself, node module 1, and node module 3 To the 1# high-speed communication port of the data transceiver m...

Embodiment 3

[0071] Such as image 3 As shown, the interface method based on the hand-in-hand scalable cross redundancy communication interface device, such as figure 1 As shown, if it is necessary to realize the dual redundancy of node module communication, the following steps are included:

[0072] Step 1: Judging the communication status of the uplinks CHANNEL A and CHANNEL B of the two mutually redundant data transceiver modules A and B that the main control module receives, and judging whether the uplink communication is normal, if CHANNEL A and CHANNEL B communicate If the status is normal, go to step 2. If there is a communication failure between CHANNEL A and CHANNEL B, go to step 4.

[0073] Step 2, judge whether the uplink communication of the two mutually redundant data transceiver modules A and data transceiver module B receiving the mutually redundant node modules is normal, taking node module 1 and node module 2 as an example, if the uplink The communication of CHL1 and CHL...

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Abstract

The invention discloses an extensible cross redundancy communication interface device and method, and the device and method achieve the redundant communication under the condition that the number of node modules is set in a mode that the hand-in-hand data monitoring among the node modules is firstly executed and then the node modules upload the data to a data receiving and transmitting module in across manner. Therefore, in a large-scale node control and protection system, on the basis of not increasing the number of high-speed communication interfaces and the number of bottom-layer node modules, the system design is simplified, the system cost is saved, the faults of the data transceiving module are effectively isolated, and the reliable communication of the system is realized.

Description

technical field [0001] The invention relates to the technical field of industrial control, in particular to an expandable cross redundancy communication interface device and method based on hand in hand. Background technique [0002] In industrial control, if the "one-to-one" communication method is used in the serial communication of large-scale nodes, the communication reliability will be poor, and any communication failure will cause the node module to fail; if the number of data transceiver modules is increased to To improve the reliability of system communication, the system cost will increase exponentially. Assuming that the data transceiver module has monitoring channels for N node modules, if it is connected through "one-to-one" communication, it can only realize the monitoring of N / 2 node modules. Double redundant monitoring, or triple redundant monitoring of N / 3 node modules, so there is an urgent need for a device and method that can realize cross-redundant commun...

Claims

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Application Information

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IPC IPC(8): H04L1/22
CPCH04L1/22
Inventor 胡四全刘静一冯敏马俊杰俎立峰吉攀攀慕小乐樊大帅杨丰源李文雅
Owner XUJI GRP
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