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An analog sensor monitoring method and system based on redundant data

A redundant data and sensor technology, applied in the direction of instruments, etc., can solve the problem of untimely disassembly of sensors

Active Publication Date: 2017-01-04
SUZHOU NUCLEAR POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The technical problem to be solved by the present invention is to provide an analog sensor monitoring method and system based on redundant data in view of the defects that the sensor needs to be disassembled and the problem is not found in time due to the regular calibration and replacement of the sensor in the existing control system

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  • An analog sensor monitoring method and system based on redundant data
  • An analog sensor monitoring method and system based on redundant data
  • An analog sensor monitoring method and system based on redundant data

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Embodiment Construction

[0044]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0045] The invention provides an analog sensor monitoring method and system based on redundant data, which is especially suitable for a control system of a nuclear power plant.

[0046] see figure 1 , is a flow chart of the first embodiment of the redundant data-based analog sensor monitoring method according to the present invention. For ease of description, only parts related to the embodiments of the present invention are shown. Such as figure 1 As shown, the redundant data-based analog sensor monitoring method provided in this embodiment includes the following steps:

[0047] First, in step S1, a data acquisition step is performed to acquire measurement data of at least two redundant sensors. In a preferred embodiment of the present inventio...

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Abstract

The present invention relates to a redundant data-based analog sensor monitoring method and system, wherein the method includes the following steps: acquiring measurement data of at least two redundant sensors; reading sensor status from a database according to the sensor model to determine Logic and sensor state judgment criteria; calculating and analyzing the measurement data according to the sensor state judgment logic to obtain a deviation value; and comparing the deviation value with the sensor state judgment criterion to obtain the sensor state. The present invention can judge the accuracy and reliability of the sensor through the cross-comparison between multiple redundant data. Compared with regular calibration and replacement, the present invention does not need to disassemble and measure the sensor, and only uses the sensor output Judging by the data, avoiding the problems caused by disassembly and installation, and more timely.

Description

technical field [0001] The invention relates to the technical field of data monitoring, and more specifically, to a redundant data-based analog sensor monitoring method and system. Background technique [0002] In today's society, control systems have been widely used in various fields of human society. Especially in industry, such as metallurgy, petroleum, electric power, chemical industry, machinery manufacturing, etc., have corresponding control systems. On this basis, a digital control system with better control performance and a higher degree of automation, as well as a process control system with dual functions of control and management, have been established by using digital computers. [0003] In control systems, there are two common terms, analog and digital. Analog quantity means that the physical quantity is a continuous value that changes within a certain range, such as temperature (0-100 degrees), pressure (0-10MPA), liquid level (1-5 meters), valve opening (0...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D18/00
Inventor 王双飞瞿勐王青青何善红
Owner SUZHOU NUCLEAR POWER RES INST