介紹了一套已成功投入使用的變電站工作票及操作票專家系統(tǒng)。該系統(tǒng)的核心模塊采用知識工程技術(shù)，開列標準票的知識與經(jīng)驗構(gòu)成規(guī)則庫，將變電站的網(wǎng)絡(luò)拓撲結(jié)構(gòu)建立關(guān)系型數(shù)據(jù)庫，推理機動態(tài)地操縱規(guī)則庫和數(shù)據(jù)庫。運用面向?qū)ο蟮睦^承性來構(gòu)造軟件的類體系，把用于安全措施的成員函數(shù)和用于操作的成員函數(shù)放入同一個類，實現(xiàn)了工作票和操作票的有機結(jié)合。利用Delphi6.0 建立Access 數(shù)據(jù)庫與Excel報表之間的數(shù)據(jù)通信，實現(xiàn)了自動開票和查詢開票的相互轉(zhuǎn)換。
關(guān)鍵詞：工作票；操作票；專家系統(tǒng)；推理機；數(shù)據(jù)通信
Abstract：An expert system for substation working arrangement & switching sequence is introduced, which has been successfully put into practice. The kernel module of this system adopts the knowledge engineering technology. The knowledge and the experience about generating the standard sequence constitute a rule base. A relational database which stores the network topology of the substation is designed. The inference engine uses the facts and rules to “reasoning” from the rule base and the database. Inheritance of object-oriented programming is used in the design of the software's class hierarchy. The member functions on security measures and the corresponding member functions on switching sequences are placed into the same class; which has realized the organic synthesis of working arrangement and switching sequence. Building up data communication between access database and excel by Delphi，It has realized automatic and inquiry introversion in the way of generating sequences.
Key words：working arrangement；switching sequence；expert system；the inference engine；data communication