The Design Of Coal Mine Monitoring Station Based On Embedded

The coal mine sub-station is an important part of the coal mine monitoring and control system, It is connected to the data transmission between the downhole data acquisition module and the ground control center station, It assumed the acquisition parameters of the underground and all the data transfer capabilities between the sub-station and central station. The level of the working efficiency of the coal mine monitoring and control system depends on whether the design is correct and functionality of sub-stations have achieved. It plays an important role in the coal mine safety management.In the hardware design of the sub-station, sub-station master chip selected based on the ARM9microprocessor S3C2440, Its superior performance to ensure that the performance of the sub-station, Diverse needs of the rich interface resources and large-capacity storage unit makes do not need to add peripherals will be able to meet the diverse needs of the sensor.Try to follow the principle of low-power high-performance on the choice of chips used by other modules, and control the number of chips in the system. DM9000network chip was used in the communication unit. It has the characteristics of single-chip, high-speed. And it can adjust its performance automatically at its best, and With IEEE802.3x full-duplex control. Users can easily to complete the driver transplantation with their needs. The job can be done in any system. Input unit with the LCD display with touch function, Set of display and input functions in the same interface, better human-computer interaction, simplifying system operation and also reduce power consumption. The data collected using the infrared sensors with current output, adjustment cycle is long, and a high degree of intelligence, labor-saving but also improve the reliability of the data collection.In the software design phase, Transplantation Linux to S3C2440was described in detail and The driver design of input an output devices of linux. And complete the data collection of sub-station data collection and Data communication sub-station and monitoring center. And TCP/IP network communication protocol introduced in the communication sub-station and monitoring center station, to ensure the stability of the communication system but also the sharing of resources.Completion of the entire system design and development of the system, we do many experiments and debugging, experimental results show that the sub-station to complete all the features of the design to final completion of data collection and processing of information and monitoring central stationtransmission, fully meet the actual requirements of the coal mine.