Research On The Chemical Accident Database Based On CBR

As the foundation of national economy, the chemical industry plays an important function in stable development of national economy and society, as a result, the work safety problems of the chemical industry become more and more important. The chemical industry with considerable accidents happened, belongs to high-danger industry. The significant subject which we confront is how to draw a lesson from former accidents and then applied in enterprise to improve the safety management of modern chemical industry.Case-based Reasoning technology is applied in many domains and get the success. It obtains knowledge and experience hidden in various parameters by retrieving the past cases, then applies the knowledge and experience in solution of existing questions. This article unifies the CBR technology and the traditional database technology to establish the chemical accident database. The major contents and conclusions are these as follows:1. This paper first introduce the current development situation of CBR technology and the database technology, and followed by discuss ing the disadvantages and defects of current chemical accidents database, and eventually study the main structure of the chemical accidents database based on the Case-based Reasoning technology. 2. Combined with accident-causing theory and actual cases, the factors of chemical accidents are obtained. Chemical accident factors are divided into four species which conclude 16 factors, such as basic factor, characteristic factor, result factor, parse factor and so on.3. With the aim to retrieve and sum up chemical accidents by scientific methods, statistic classification and index of chemical accidents have been summarized.4. At the base of the important arithmetic to case reasoning, the approach of retrieve and reasoning are researched.5. Based the analysis of requirement, the chemical accident database system is constructed by using Microsoft SQL Server 2000 and ASP. Many functions of chemical accidents database system, such as updating, background auditing, releasing indexing and statistics is realized. Meanwhile, some parts of functions which are used in case ratiocinating is designed as well. By running, the system has a certain practicability and can meet the need of most users.