Research Of Remote Monitoring With Upper Coner Gas System Based On Embedded Internet

The problem of the accumulation and overrunning of gas in the coalface is a technological obstacle of urgent solution in the production of safety. In the paper,it poses a plan,which is the density to collect upper coner gasfield,the autocontrol hydraulic system to drive real-time pumping gas with the fan and the remote monitoring to carry out by the Web server in order to solve the difficult problem of monitoring and controlling upper coner gas based on its reasons of comprehensive analysis and solutions available by adopting the technology of Measurement, Hydraulic Control,Computer and Network Communication.Monitor system mainly contains two parts, hardware and software.Hardware is designed by LPC2220 embedded processor in the core of ARM7TDMI as its platform kernel.Software is designed by the Embedded Configurable Operating System(eCos) as its platform kernel.On this basis,it is to implement software of the application layer and Web server,which constitute the remote monitoring system based on embedded Internet.In the hardware system,LPC2220,power,reset,crystal,FLASH and SDRAM consists of a minimal system.On this basis,the author extends the interface of UART and debugged JTAG,who designs the gas collecting module,the systematic driving circuit,the types to choose hydraulic control parts,the keyboard entry and LED display module and the choices of Ethernet chip RTL8019AS as the accessible Internet module.The development of software system is the transplantation of embedded eCos on the first step.In the paper,it chooses the eCos to transplant the remote monitoring hardware of upper coner gas at first.Then,it elaborates on the eCos portable plan and the course of the detailed transplantation.Finally,the achievable process of the bootstrap and Debug environment of embedded system is shown.The author programs the driver for hardware based on the management mechanism to hardware of eCos,which includes the chip of Ethernet,UART,memory,Keyboard and LED,the driver for the collecting of A/D and control segment based on the Hardware Abstraction Layer(HAL) of eCos,and the design of the entry function of monitoring system in the application layer.At last,the author transplants the LibHTTPD of embedded Web server based on eCos,programs the desgin of LibHTTPD,configures and constructs the Ethernet of eCos and formulates the generative process of application program.He debugs and inspects all the remote monitoring on the lab of simulative environment.It realized the expected goal basically in the system.At the end of the paper,the research conclusion and prospect are given by the author in the subject.