Gis Technology Is Applied Research, Emergency Rescue Command System

Emergency rescue work involves many correlated factors, and the situation is quite complex. Compared with other works, it is a high technical and more dangerous work real-time effectiveness. At present, some domestic enterprises have management and technical defects in major hazard sources. Therefore, it is necessary to establish a set of integrated security information management and emergency rescue system so that the safe work and emergency rescue work for their industrial parks can be guaranteed.In this paper, the geographic information system (GIS) is introduced into this industrial park safety information management and emergency rescue system. Combination with actual production situation of the industrial park, this paper describes the design method of an emergency rescue information system based on GIS and its rapid response technology.In view of the practical application, this paper analyzes the technical requirements of the hazardous object data acquisition technology and safety pre-warning technology depending on the combination of production situation of enterprises. The spatial attribute information and dynamic data of enterprise are analyzed. Based on a comprehensive comparison of the existing GIS software, selecting U.S MapInfo GIS software, Map X, application of general-purpose development language, Visual Basic with Microsoft SQL Server relational database, this paper introduces the details about the design procedure of emergency rescue information system based on GIS. And spatial index frame named ESIL based on R-tree data structure and suitable for GIS platform is established. This paper describes several strategies of GIS'displaying graphics quickly. With a combination of two strategies, controlling the number of graphical data which is read into memory and reducing the amount of drawing data itself, this paper achieves a result of fast, dynamic display of graphics. Furthermore, it proposes an optimization strategy on shortest path algorithm, which can shorten the corresponding time to the accident and promote the system's practicability.