ARM-based Monitoring System Of Coal Mine Water Wells

This subject according to the current state of the watetr well of mine and the practical problems of improving their own development,develop of ARM-based coal mine water well monitoring system.The main thesis of this article is the Terminal Monitoring System hardware design, software algorithm design and communication technology, the protection of electrical principles of the Motor and the monitoring system designed by PC software.According to the algorithm of Terminal design, According to the system characteristics and the required analysis of the system it adopted DC sampling methord to water level, flow, pressure and AC signal sampling methord to of the phase current, phase voltage. After the sampling data analysis and numerical calculation,it can get a high-precision parameters of water wells and systems control methord.The high receiver sensitivitily, frequency stabilitily, high efficiencily transmission of wireless data radio and RS-232 serial port compose of the part of thecommunications wireless network,which implementing the data transmission up and down.Monitor Terminal hardware designed of ARM chips used mainly as a core monitor of the terminal sub-station , which can detect water level in water wells, water pressure, flow and other parameters in real-time. it can display of the Well water in real-time and dynamic characteristics of the various parameters and see the historical changes in water level.At the same time, ARM processor acquise the data through the transformer , and calculate the current of three-phase pump motor, accordance to the electrical current, voltage, size, voltage of the actual value of the phase sequence in real-time it can protected the pump motor. And Control Center can in accordance with an order to carry out and transfer the corresponding data.The software of the monitor terminal is considering to sample accuracily, data processing systems in real-time and The replant of uClinux into the ARM, as well as the feasibility communications and effectiveness.display of the systems.System Monitoring software programming using VC6.0 acquisitse in real-time data and processing control, it can also display the data, reports, printing and alarming.