Research And Development On The On-line Monitoring System Of The Mixture Warehouse Level

Real-time accurate material location measuring is often needed in industrial production, many kinds of measure methods have been proposed both at home and abroad. FMCW radar gauging is a non-contact measure method and not restricted by solid structures, even working in high-temperature, high-pressure, high-dust and corrosive environment an accurate gauging result can be got. This paper regards mixture warehouses of a domestic steel plant as the concrete target, analyzes the FMCW radar gauging principles and studies the methods of object-oriented technique, database technique and software modularization in details. A set of practical mixture warehouse level on-line monitoring system is developed with the rapid development of computer network technology.The system includes two main functions: (1) This on-line system monitors the level of mixture warehouses real-timely, at the same time realizes functions of data collection, data analysis, data transport, series of parameters setting, sound and light alarm etc.(2) This on-line system includes functions of data administration and data analysis. Trend analysis can repeat every warehouse's data of a whole day. Report administration includes functions of report forms engendering and report forms accessing through network.This paper discusses the material level monitoring developing status and trend, studies on-line monitoring and analysis technologies. Through the analysis of FMCW radar echo signals, using a variety of signal filtering approaches in software, mutations caused by false echoes are suppressed in order to improved the accuracy of gauging. The performance of ADO which a mode access to the database is studied and a class-level structure is set up. According to the development flow of database application systems, the system framework, modules of serial communication and each signal monitoring and analysis modules are emphasized.Since the testing running of the system, every function has been verified. It satisfies the desire of users so gets some praise.