Embedded Systems In The Coal Mine Safety Monitoring System

The embedded technology is the heated research of the present information fields.At present, various embedded system equipments have already far overrun the common computers in the quantity of application.As to the technological defects of the traditional CH4 gas control, the thesis makes embedded technology used in design of the underground detect station,and has realized real-time detection and control of all kinds of parameters (such as CH4 gas, warm humidity, wind speed,etc) to the colliery, so the system has fast handling capacity in the colliery (underground measure, operation, alarm).The work of this thesis is based on the collaborative project " Monitoring Systems of Optic Fibre Coal Mines Safety ", which is carried by the Guizhou university and Guizhou DongFang Network Co.Ltd. The item adopts advanced laser detection techniques, embedded measuring station in the colliery, and optic fibre transmission technology.The project has already made some achievements, National State Patent Office has accepted invention patent and new practical technical patent (200610051272. X, 200620133727.8, see the attachment).And it has already been listed in the industrialtechnical key scientific plan of 2007 in GuiZhou Province. At present, the project has already applied to the 2007 plan project of the Supervise and Manage Bureau of National Safety; and the National 863 Program.The main contents and completed woeks are as follows: The thesis introduces the background of the underground detection station with the embedded technology in detail.It has explained the characteristics and important meanings of this research, based on the analysis of the domestic and international application and current research situation,and done in-depth research on development mode and methods in the embedded system.The thesis has finished the previous research experiments of the underground detection station,the software and hardware design of the I/O circuit of the embedded controller,and the light switch circuit,and the realization of the software of LED shows and long-distance warning circuit, the transplantation of uC/OS-II operating systems and the system task plan of the underground detect station .Then,it has realized some other test and debugged works, and the united control experiments in the laboratory.