Nuclear power communication control module based on redundancy technology

A technology of communication control and redundancy technology, which is applied in general control systems, electrical program control, program control, etc., and can solve problems such as difficulty in ensuring data transmission reliability and large-scale central control systems

Pending Publication Date: 2020-04-10
BEIJING MICROELECTRONICS TECH INST +1
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As a result, the scale of the central control system is huge, and the reliabilit

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  • Nuclear power communication control module based on redundancy technology
  • Nuclear power communication control module based on redundancy technology
  • Nuclear power communication control module based on redundancy technology

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[0039] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0040] The present invention is a nuclear power communication control module based on redundancy technology, including: main processing module, hot backup processing module, RS485 circuit, RS422 circuit, RS232 circuit, master-slave configuration circuit, communication protocol conversion circuit and power module; In the condition monitoring system, several underlying IO monitoring modules on the RS422 communication bus with anti-radiation capability read and control, and convert the data transmission protocol, which solves the problem of cumbersome wiring in the central control room of nuclear power plants caused by the use of a large number of analog monitoring circuits. The Profibus-DP master station of the central control system can communicate with the underlying IO monitoring module through a cable. Take the redundant processing module combined wi...

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Abstract

A nuclear power communication control module based on the redundancy technology comprises a main processing module, a hot backup processing module, an RS485 circuit, an RS422 circuit, an RS232 circuit, a master-slave configuration circuit, a communication protocol conversion circuit and a power supply module, a plurality of bottom IO monitoring modules on an RS422 communication bus with anti-radiation capability in a nuclear power state monitoring system are read and controlled; and a data transmission protocol is converted, so that the problem of tedious wiring of a central control room of anuclear power station due to adoption of a large number of analog monitoring circuits is solved, and a Profibus-DP main station of a central control system can communicate with a bottom IO monitoringmodule through one cable. Redundant processing modules are combined with a polling mechanism between the processing modules and a polling mechanism between the processing modules and a bottom IO monitoring module to serve as a core, data can be uploaded to a ProfiBus-DP main station orderly and continuously, and the influence of data loss caused by faults of a common single-path transmission structure is avoided.

Description

technical field [0001] The invention relates to a nuclear power communication control module based on redundant technology, which belongs to the technical field of intelligent monitoring communication control. Background technique [0002] With the popularity of nuclear digital control systems in the nuclear power industry, a large number of communication protocols and various data transmission modules are used in the instrumentation and control systems of nuclear power plants. High doses of radiation in the monitoring area of ​​nuclear power plants place stringent requirements on the performance of electronic components. At present, the control system structure of nuclear power plants at home and abroad is mainly based on centralized monitoring, which is more sensitive to the problem of cable overcapacity. As a result, the scale of the central control system is huge, and the reliability of data transmission of the entire monitoring system is difficult to guarantee. Theref...

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Application Information

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IPC IPC(8): G06Q50/06H04L12/40H04L29/06G05B15/02G05B19/418
CPCG06Q50/06G05B19/4185G05B15/02H04L12/40013H04L69/08Y02P90/02
Inventor 刘立全张龙强戴成睿兰军峰夏荣桢杨黎祝建彬习楚浩温春玉周亮李冠辰易亮
Owner BEIJING MICROELECTRONICS TECH INST
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