Based on the study of software testing and expert system core technologies ( inference method and mechanism , explanation mechanism , knowledge acquirement , and knowledge representation ) , the author developed the software exception analysis of expert system using visual prolog 作者在研究软件测试以及专家系统核心技术(推理方法与推理机制、解释机制、知识获取和知识表示等)的基础上，采用visualprolog语言，完成了软件错误分析专家系统的具体开发。
Failure diagnosis expert system for pressure vessels is made up of knowledge base , knowledge base management system , inference machine , integrated database , self learning system , explanation machine and human - machine interface etc . knowledge base and inference machine are absolutely necessary 压力容器失效分析专家系统由知识库、知识库管理系统、推理机、综合数据库、自学习机制、解释机制、人机接口等部分组成。其中最重要的是知识库和推理机两部分，这两部分缺一不可。
To overcome the knowledge representation limitations of the traditional signed digraph model based expert systems for hazard and operability analysis , a novel layered digraph model for automating process hazard and operability analysis is proposed based on the graphical theory by decoupling the two dimensional signed digraph models in the three dimensional space 摘要为克服传统的基于有向图模型的危险和可操作性分析专家系统在知识表达方面的局限性，通过将二维的有向图模型在三维空间的解耦，采用图论的方法，提出了一个可以用于危险和可操作性分析自动化的有向架模型。
The main research content of the article is involved as follows : ( 1 ) the research and discussion of the quantitative metallographic analysis methods and the measuring methods of micro hardness . ( 2 ) the application of digital image technique in metallographic image preprocess such as gray level transformation , dichotomy , noise eliminating , dilation and erosion , image enhancement , boundary detection , etc . the application of the wavelet and multi - resolution analysis in metallographic image procession to improve the measuring accuracy and efficiency . the application of the region growth and mathematical morphology in analyzing image parameters to improve the flexibility and exaction 本文的主要研究内容： ( 1 )定量金相分析和显微硬度测量的方法研究； ( 2 )利用数字图像处理技术，实现金相图像的灰度转换、二值化、噪音消除、膨胀收缩、图像增强、边缘提取等预处理；引入小波理论、基于数学形态学的区域生长法对采样图像进行分析，实现了对采集图像边缘的有效提取，从而提高了测量精度； ( 3 )开发了金相图像分析系统的主体结构(硬件结构和软件结构) ； ( 4 )采用windows开发平台的面向对象程序设计语言microsoftvisualc + +进行系统的模块化设计； ( 5 )提出了采用多模式的知识表示方法建立知识库，应用正反推理、模糊数学模型、基于规则的模式匹配模型建立金相分析专家系统。
This dissertation made a systematic and profound research on fault analysis of expert system is put forward . the function modelling and the information modelling for faes is established . it probes into the knowledge described and processed , the knowledge maintenance , management and layout of the faes system ; and develop faes based on product facing the quality layo ut 主要工作包括：对故障分析方法进行了全面深入的研究，在此基础上，提出了质量规划综合分析方法的系统框架，重点分析了故障分析专家系统( faes )的体系统结构和功能模型，对faes系统的知识描述、处理、和维护进行了探索和研究，并以轴承为研究对象对系统进行了详细的说明。
It is essential to make research on fault analysis of expert system facing product to adapt to market competition , response to the development of society . the research is important for designer to solve how to convert the customer requirement into the process of manufacture and to prevent fault in the process of production 开展面向产品质量规划的故障分析专家系统研究是适应市场竞争，响应时代发展的需要，是实现快速而有效的将用户需求反映到产品设计中去并且预防故障发生的有力工具。
