Construction And Implement On Environmental Fuzzy Security Evaluation System

Humans on an unprecedented scale and speed of the impact and changing the living environment, leading to natural disasters to human"retaliation"are increasingly frequent. Such as dust storms, earthquakes, tsunamis, droughts and etc ecological problems seriously affected socio-economic development and human life. Water is human life for essential items, water shortage, and the rapid deterioration of water environment; flood and the continuous occurrence of water crisis, made the community have begun to attach great importance to the importance of water security. These disastrous environmental problems sounded the alarm to humans again and again; humans have been clearly recognized that the"ecological security","water security"and these security issues have become the world's common concern and challenging to a major issue.In order to resolve these security problems, a comprehensive analysis of this paper will study about the"ecological security","water security"and other associated references with conducting the research summarized these security problems methods and ideas to establish a set of the security fuzzy evaluation system which applicable for most security issues, to resolve these security issues to provide the necessary reference in the future.The security fuzzy evaluation system by analyzing the research system's characteristics and related historical data, established the security evaluation index system of a fully reflect the features of this system security; introduced an improved AHP to determine the evaluation index system all the factors'weights; and made the system security evaluation of grade table and divided into five grades: very safe, safe, safer, dangerous, very dangerous. The security evaluation with fuzzy characteristics developed of multi-level fuzzy comprehensive evaluation method. Through the GUI interface for MATLAB 7.1 programming and eventually realizing visualization intuitive security evaluation systems.This paper will build security fuzzy evaluation system applied to the ecological risk evaluation of Huangdao petrochemical area in Qingdao in recent years, obtained in recent years the security evaluation grade of the petrochemical area. And those several years of evaluation grades are compared and analyzed finally concluded that in the area a greater threat factors for its security.The security fuzzy evaluation system is also applied to the security evaluation of water supply system in Qingdao some area, and given this region grade of security of water supply pipe, in good agreement with the actual.By the former work, Illustrated the visualization security fuzzy evaluation system is feasible. At the same time the application of the system also shows that there is still room for improvement and can be extended, it need to be further improved.