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Gas monitoring is considered as the most important mean in the safe production of coalmine. Time delay inevitably exists in the current gas monitoring technology widely used today. This research uses Support vector machine to forecast gas concentration. ZigBee wireless network protocol is adopted so that a wireless gas monitoring network with concentration predicting function is obtained. In this way the present time delay in Gas concentration monitoring will be improved and the scope of monitoring will be expanded at the same time

A supervisory control and data acquisition system is designed for wind farms, including the local controller and remote monitoring terminal. The data of the sensors collected by the lower-computer is transmitted to the host computer monitor terminal through the GPRS wireless network after preliminary treatment. In the host computer, the data is processed and displayed by the virtual instrument. The remote monitoring terminal can also send commands to control the actuators in the wind farm. Wavelet de-noising principle is used to process the data collected, improving the reliability and stability of the system.

Along with the tension of global energy and the improvement of environmental awareness, more and more Research institute begin examining how to change low-concentration gas into treasure. So we design the intelligent controller with ARM920T as its main control chip, set up an intelligent controller with two inputs, which will dilute the concentration from 4%-8% to 3.8% and the transmission can be carried out under constant pressure. We have made simulation toward the system by using Simulink in MATLAB and Fuzzy toolbox. The results show that the control effect turns out to be fine and has reached the performance indicators of power supply control system of low-concentration gas. This program will be proved to be an ideal intelligent control plan.

To reduce the frequent occurrence accidents of mining areas, a set of monitoring system of monitoring the operational status of mining equipment is designed. The information of electromechanical equipment are collected by the on-off sensors with anti-interference, which are converted to the standard RS485 interface signal though the MCU（Microprogrammed Control Unit）, and transmission to the monitoring platform by the bus transfer. The monitoring system is convenient and saves the cable, which can monitor the operational status of the field devices with accurate and real-time.