Aiming at the current coal-fired captive power plants to carry out operation and maintenance,monitoring work is difficult,monitoring data collection accuracy is low and other problems,a coal-fired captive power plant online monitoring system based on infrared and visible light temperature measurement technology is proposed.The system carries out remote monitoring of hardware and algorithm modules respectively.Firstly,infrared temperature measurement is used to realize sampling by infrared opposed grating device.Then,the device is loaded with other moving machines to obtain the temperature state characteristic points of each position of the equipment of the coal-fired captive power plant by infrared light and send them to the back-end server to get the infrared images to realize the on-line monitoring of several equipment of the coal-fired captive power plant.At the same time,a finite element-based algorithm model is used to complete the fault analysis of the coal-fired captive power plant equipment.The analysis results of the example test show that the fitting curve of the system has a low error;in the environment of 1 000 measurement points,the error percentage is only 0.4％.The test verifies the feasibility of this system,which opens new ideas for the field of operation and maintenance construction of coal-fired captive power plants.
关键词
红外测温技术/故障识别/现场可编程门阵列/结构化查询语言数据库/红外对射光栅/有限元算法
Key words
Infrared temperature measurement technology/Fault identification/Field programmable gate array(FPGA)/Structured query language database/Infrared opposed grating/Finite element algorithm
维普
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