Gis-based Emergency Response System Of Coal Mine Safety

For recent years, China’s coal mine accidents occur now and again. For the situation, the country has developed emergency response plans for coal mine safety. But the coal mine accidents are a kind of sudden event, the planning plan alone can not meet special requirements when the accident happens. Thus, it is necessary that the emergency response decision-making combines with the actual situation of the scene, in order to develop an efficient, easy to implement, visualization of coal mine safety emergency plan. The use of GIS technology can more effectively analyze and reflect comprehensive information in the process of the security emergency, and effectively solve a variety of unexpected problems encountered on security emergency.To make coal mine safety emergency response more comprehensive, effective, quick to work, this study designed and developed a coal mine safety emergency response system based on GIS, of which server system using C#and ArcEngine develop, mainly responsible for data collection and analysis; client system using C++and QT develop, mainly responsible for the portable data show and interaction with the server. The system will eventually form a map management module, information query module, monitoring and early warning module, emergency decision-making module, data maintenance module, and help support the modules and other functional modules.System using fuzzy analytic hierarchy process(FAHP) analyses road weight, sets up evaluation criteria of road weight, and then considering both security and time, with the improved A*algorithm obtains best hedge path and rescue path. The use of buffer analysis divides the disaster range, and graphical display of the danger zone and security zone. The paper discusses the selection principles of a place of safety in the disaster process. It explores using a wireless WiFi network transmitting and sharing ground and underground information, and take full advantage of real-time information from a variety of monitoring equipments, to accurately obtain the security situation of the disaster site and ensure the safety of emergency work carried out. The system focuses on the buffer generation algorithms that disaster range partition uses, including buffer generation algorithm based on the angle bisector and dynamic buffer generation algorithm. The study achieves the development of the GIS system on portable client devices and transfer messages with the server.The system uses the C/S architecture, so the server will receive information from a variety of monitoring equipment to analyze and package, and then sent to the client, in order to achieve ground and underground information sharing; client receives a variety of information to conduct a comprehensive analysis to calculate the emergency hedge best path,giving the underground timely and intuitive prompt information, real-time visual display of the disaster site safety information, to take refuge measures to effectively reduce the impact of security incidents. Finally, along with typical of pilot projects to illustrate the advantages and practicality of the coal mine emergency response system, experimental results show that the system can not only provide coal mine safety emergency work with strong support, but also can be applied to the emergency relief of sudden disasters.