Research On The Emergency Case Knowledge Base System And Its Application

With the rapid development of the economy, the accidents occur more and more frequently, and their harm is greater and greater. We have to establish the Emergency Cases Knowledge Base System to help people effectively and minimize the harm of the accidents. The Emergency Cases Knowledge Base System is a kind of technical system which is based on security and information technology, and it is an important tool which supports the decision-making process. Emergency Cases Knowledge Base System's establishment is a kind of basic work, which has a very important meaning of preventing natural disasters, accidents, and security affairs. According to the research on the GIS and the Emergency Cases Knowledge Base System, this paper establishes the structural framework of The Emergency Cases Knowledge Base System, researches into the expression method, the selection model, and the modification of cases deeply, and finishes the design and development of Prison Emergency Cases Knowledge Base System of Henan Province. The achievements and new ideas are as follows:1. Based on the theories and methods of decision-making analysis, this paper analyzes the emergency decision-making process. This paper establishes the structural framework of The Emergency Cases Knowledge Base System, and designs the functions of it. Then this paper summarizes the key technique of applying the cases, including the expression of the cases, the selection of the cases based on the space-time relationships, the modification of the cases, the evaluation of the cases, and the study of the cases. By the analysis of the key technique, we make it clear that the cases can support the emergency decision-making, improve the scientificalness of it, and shorten its time.2. This paper analyzes the evolvement process of the emergency incident, and establishes the space-time relation model of the cases. After summarizing the creation process of the cases, this paper designs an optimized space-time model to express the emergency cases and sets up its storage structure. This model realizes the management and the expression of the emergency cases, and it expresses the space-time attribute and the non-space-time attribute, describes the cases better, and establishes the basement of the case-based reasoning.3. Based upon the expression model, this paper establishes the selection model of the emergency cases. For the demands of the spatial reasoning applications, the model analyzes the space-time characteristic attributes and the non-space-time attributes of the cases, gives the comparability between the new case and the previous cases in the database quantificationally, which can be the standard of reuse. With this model, the user can select the case faster, and this model can guarantee the veracity of the case's selection.4. This paper analyzes characteristics and functions of the modification of the cases, and puts forward a method of emergency case's modifying, which is based on the generalized operator and the space-time comparability. With the space-time comparability, this method modifies emergency process step by step, and it also modifies a group of cases to obtain the solution of the accidents. In this way, the solution can be more perfect.