A multi-channel nuclear power equipment contact scanning device and its working method

A scanning device and multi-channel technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problem that the resolution of ordinary scanners, the number of scanning channels and the scanning interval cannot meet the requirements of nuclear power equipment, the inability to accurately judge the logical relationship of fault signals, and the failure of nuclear power equipment. Requirements for on-site use of equipment and other issues to achieve the effects of high signal processing efficiency, avoidance of mutual influence, and high reliability

Active Publication Date: 2021-11-23
ATOMHORIZON ELECTRIC JINAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the original system has the following problems: (1) The original system uses a lot of software, which is prone to many software problems, and the system is extremely unstable; (2) The resolution of the equipment is greater than or equal to 2ms. For nuclear power plant equipment, safety level, quality level, precision The degree is higher than that of ordinary equipment. The resolution, number of scanning channels, and scanning interval of ordinary scanners cannot meet the requirements of nuclear power equipment. order, then it is impossible to accurately judge whether the fault signal has a logical relationship, which is not conducive to the later fault analysis

Method used

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  • A multi-channel nuclear power equipment contact scanning device and its working method
  • A multi-channel nuclear power equipment contact scanning device and its working method
  • A multi-channel nuclear power equipment contact scanning device and its working method

Examples

Experimental program
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Embodiment 1

[0040] like figure 1 As shown, this embodiment provides an FPGA-based high-speed multi-channel nuclear power equipment contact scanning device for nuclear power plants. Based on FPGA parallel processing technology, it cooperates with parallel buses to scan and judge the contact status within a preset polling period.

[0041] It specifically includes: a first frame and at least one second frame; the first frame is provided with a first processing module and a first receiving module connected with the first processing module, and the second frame is provided with a second processing module and a connection with the second A second receiving module connected to the processing module; the second processing module is connected to the first processing module, and is used to send the contact scanning result of the second rack to the first processing module;

[0042] Both the first receiving module and the second receiving module include a computing unit, and a multi-channel receiving...

Embodiment 2

[0075] The present embodiment provides a working method of the FPGA-based high-speed multi-channel nuclear power equipment contact scanning device for nuclear power plants, including:

[0076] Receive the nuclear power equipment switch contact signal in parallel through the multi-channel receiving end;

[0077] The preset single-channel signal is not operated by the logic unit, and the operation result and the nuclear power equipment switch contact signal of the corresponding channel are subjected to XOR preprocessing through the operation unit;

[0078] Send the preprocessed nuclear power equipment switch contact signals to the first processing module and the second processing module, so that the first processing module and the second processing module Get the contact scanning result;

[0079] The first processing module judges the faulty channel according to the contact scanning result of itself and the contact scanning result of the second processing module, and obtains th...

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Abstract

The invention discloses a multi-channel nuclear power equipment contact scanning device and its working method, and relates to the technical field of nuclear power plant control systems, including: receiving nuclear power equipment switch contact signals through a multi-channel receiving end; Perform non-operation, and carry out XOR preprocessing with the nuclear power equipment switch contact signal of the corresponding channel through the calculation unit; send the preprocessed nuclear power equipment switch contact signal to the first processing module and the second processing module, so that it can be processed according to The preprocessed nuclear power equipment switch contact signal and configuration information set obtain the contact scanning result; the first processing module judges the fault channel according to its own contact scanning result and the contact scanning result of the second processing module, and according to the preset The polling cycle obtains the order of the failure signals of the switch contacts of the faulty channel core electrical equipment. The contact signals of the field equipment of the nuclear power plant are collected through multiple channels and processed in parallel, realizing a scan with a total of more than 4,000 channels.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant control systems, in particular to a multi-channel nuclear power equipment contact scanning device and a working method thereof. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] A contact scanner is a device that collects the contact status of field devices, processes it, and outputs the contact information to other devices. At present, nuclear power plants using high-speed multi-channel contact scanners adopt the basic structure of workstation + multi-computer + VME board, equipped with Windows NT4 operating system, configure channels through software, and use the principle of voltage division to switch dry and wet contacts on site. However, the original system has the following problems: (1) The original system uses a lot of software, which is prone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40
CPCG06F13/4022G06F13/4068
Inventor 李苏李鲁亚黄宝忠李慧王彦磊
Owner ATOMHORIZON ELECTRIC JINAN CO LTD
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