Research On Real Time Monitoring System Of Roadway Thermal And Humid Environment And Refrigeration Equipment Performance Based On LabVIEW

For a long time,the coal industry has been an important material basis for the development of China’s society and national economy.Due to continuous mining for many years,the shallow coal has been exhausted and can only be driven to the deep underground wells.In the deep well mining,the heat emitted by the high temperature surrounding rock and high temperature water inflow,mechanical and electrical equipment,human body heat and oxidation heat dissipation caused by geothermal energy will be faced with the heat damage problems of high temperature and humidity in the mine roadway,which will affect the normal operation of the underground and the health of the miners,thus seriously reducing the labor productivity.And from the current situation and development trend of coal mine heat disaster management,artificial cooling technology has become the main means of underground cooling.Therefore,it is particularly important to establish a set of advanced and reliable real-time monitoring system for roadway thermal and humid environment and artificial refrigeration equipment performance.In this paper,with the help of environmental sensors(wind speed,temperature and humidity,etc.)and Siemens PLC,a complete set of data acquisition,real-time display,storage and query system is designed through Lab VIEW software development platform.Combined with the actual situation of this paper,the spatial interpolation algorithm is further studied,and the visualization cloud image of discrete point data is displayed by using the improved inverse distance weighted interpolation method,so as to complete the lane detection Real time monitoring of the performance of 450 k W artificial refrigeration equipment in hot and humid environment.The main research contents are as follows:(1)According to the goal of the monitoring system,the overall scheme is formulated and the hardware system is designed.(2)Complete the analysis and design of monitoring system software architecture and function.Combing the functional requirements and technical indicators of the monitoring system,using the idea of modular design,the acquisition program of the lower computer and the display interface and functional program of the upper computer are designed systematically.According to the characteristics of the software and hardware of the upper and lower computers,the communication between them is realized correctly.(3)This paper studies the existing three commonly used spatial interpolation algorithms,and proposes an improved inverse distance weighted interpolation algorithm based on quadrant search and variogram.The improved interpolation algorithm is applied to the thermal and humid environment field of coal mine roadway,and the visualized cloud map of thermal and humid environment is constructed.The system designed in this paper is a real-time monitoring system for the safety production and management of roadway.Through this system,managers can quickly,timely and accurately obtain the relevant information about the thermal and humid environment and the performance of refrigeration equipment in the roadway,so as to avoid or reduce the thermal accidents caused by untimely discovery and ensure the safety production of coal mine.Finally,the running test results verify the rationality,accuracy and stability of the design system.