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The disaster prevention monitoring system of the Shanghai-Kunming high-speed railway Guizhou section using Nanda Auto Extension PLC has completed static acceptance

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The disaster prevention monitoring system of the Shanghai-Kunming high-speed railway Guizhou section using Nanda Auto Extension PLC has completed static acceptance

  • Categories:Company news
  • Author:
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  • Time of issue:2015-03-27 17:47
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(Summary description)The Shanghai-Kunming high-speed railway is an east-west railway artery from Shanghai in the east to Kunming in the west of Yunnan. It is also one of China's "four vertical and four horizontal" rapid passenger transport corridors.

The disaster prevention monitoring system of the Shanghai-Kunming high-speed railway Guizhou section using Nanda Auto Extension PLC has completed static acceptance

(Summary description)The Shanghai-Kunming high-speed railway is an east-west railway artery from Shanghai in the east to Kunming in the west of Yunnan. It is also one of China's "four vertical and four horizontal" rapid passenger transport corridors.

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2015-03-27 17:47
  • Views:
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南大傲拓

The Shanghai-Kunming high-speed railway is an east-west railway artery from Shanghai in the east to Kunming in the west of Yunnan. It is also one of China's "four vertical and four horizontal" rapid passenger transport corridors. The project with the most high-speed railways passes through 6 provincial capital cities and municipalities including Shanghai, Hangzhou, Nanchang, Changsha, Guiyang and Kunming. The design speed is 350 kilometers per hour and the total length of the line is 2066 kilometers. After the completion of the Shanghai-Kunming Railway, it will become the longest east-west high-speed railway in China。

The latest plan of the Chengdu Railway Bureau shows that at present, China Railway Corporation is conducting static acceptance of the Shanghai-Kunming high-speed railway (Guiyang to Changsha section), and joint commissioning and joint testing will be conducted in the middle and late March. If all aspects are successful, it will be opened at the end of June this year. Operation。

It is understood that in the joint commissioning of the Shanghai-Kunming High-speed Railway from Guiyang to Changsha, the Chengdu Railway Bureau has carefully studied and carefully optimized the joint commissioning plan in accordance with the deployment of the China Railway Corporation, and has set the joint commissioning time of the Shanghai-Kunming High-speed Railway. From 105 days to 91 days, the specific work flow is: after completing static acceptance in early March, use 3 months to conduct joint commissioning and joint testing. The main contents of the joint commissioning and joint test are: using the test car of the Chengdu Railway Bureau for testing, comprehensively testing the train step-by-step speed-up test (CRH380 model), re-linking the train group's step-by-step speed-up, signal system scenario verification, line selection pull-through test, etc. The trial operation will take one month, and the Shanghai-Kunming high-speed railway (Guiyang-Changsha section) will be officially put into operation at the end of June this year if all conditions are met。

It is reported that the joint trial of Guiyang-Changsha section is jointly completed by Chengdu Railway Bureau and Guangzhou Railway Group. Chengdu Railway Bureau is responsible for the section from Guiyang to Huaihua, and Guangzhou Railway Group is responsible for the section from Huaihua to Changsha。

Our company's disaster prevention monitoring system is currently being commissioned from the Guiyang to Huaihua section. At present, the static acceptance work has been completed, and all monitoring data has been successfully transmitted to the Chengdu Monitoring Center。

The technical solutions provided by the disaster prevention monitoring system Nanda Auto are as follows:

Hot standby redundant PLC system

The high security requirements of the high-speed railway put forward high-reliability requirements for the disaster prevention monitoring system. This solution has been designed in a targeted manner, and full consideration has been given to redundancy. The redundant PLC system realizes full system redundancy, including power supply redundancy, CPU redundancy, IO module redundancy, communication module redundancy, Ethernet redundancy, etc., which fully guarantees the reliability of the system。

The hot standby redundant PLC system adopts the complete hot standby mode, which is full hardware redundancy. Data backup is performed between hot standby PLC systems through hot standby redundant cables. If any module fails to work or is diagnosed as a fault, all controlled devices and modes can be switched automatically without interruption and without disturbance. At the same time, it can be manually switched through the hardware buttons of the monitoring software and PLC system. Regardless of the switching method, the entire system can be switched without disturbance。

Hot standby redundant PLC system structure:

  

南大傲拓

 

Realization of hot standby redundant PLC system:

The data backup between the master and slave systems is completed through the high-speed channel between the hot standby PLC systems, and the communication rate can reach 100Mbps;

Complete data exchange within one scan cycle, processing speed is further improved, real-time performance is better than similar products at home and abroad。

Fully independent intellectual property rights can provide flexible hot standby redundancy scheme hot standby。

If the master PLC system fails, the master-slave PLC system can be switched after one scan cycle, which can be completed in 100ms, the switching time is shorter。

  

南大傲拓

Disaster prevention monitoring system screen

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Time of issue:2020-06-24 00:00:00

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