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    • 7. 发明专利
    • DIAGNOSIS DEVICE FOR PRODUCTION EQUIPMENT
    • JPS63272450A
    • 1988-11-09
    • JP10316487
    • 1987-04-28
    • HITACHI LTD
    • TSUYAMA TSUTOMUHARADA TOSHIMASANAKAZATO JUNIWASAKI TAKEMASA
    • B23Q41/08G05B19/418G06Q50/00G06Q50/04H01L21/02H01L21/66
    • PURPOSE:To permit the diagnosis for equipment and instruction for countermeasures by storing the knowledge of skilled engineers in a memory device and utilizing said knowledge by first using the information which even a nonskilled operator can easily recognize such as the abnormal state of the equipment and the working precision of a product. CONSTITUTION:Each state related to working dimension and precision for a product which are measured at a certain time point is input from an input/ output devices E1-En, and all the characteristic patterns fitted with the state are taken out into a processing device F from a memory device D, and the equipment state corresponding to the pattern is searched. Therefore, all the fundamental subjects related to the trouble of the element device which is caused by the state are represented as the trouble positions in the order of the larger influence, on the input/output devices E1-En. Therefore, even in case of an unskilled operator having insufficient empirical knowledge for the diagnosis of the equipment, the equipment state can be estimated speedily and precisely, and the maintenance contents at that time point in the forecast of the equipment disorder can be applied by referring to the maintenance record in the past.
    • 10. 发明专利
    • SYSTEM AND METHOD FOR PREPARING KNOWLEDGE DATA BASE
    • JPH09274569A
    • 1997-10-21
    • JP8420496
    • 1996-04-05
    • HITACHI LTD
    • KOSHISHIBA ERITSUYAMA TSUTOMUUENO HIDENORI
    • G06F9/44G06N5/04
    • PROBLEM TO BE SOLVED: To provide a system and method for preparing knowledge data base with which knowledge data can be easily changed or added while attaining the check of hierarchies or contents in a knowledge base without depending on the ability of a knowledge base correcting person even after the knowledge base is temporarily constructed. SOLUTION: This system is composed of a data base 9 in data structure with which detailed knowledge is defined for each node while having hierarchical structure mutually relating plural nodes, data table showing which other node is related to each node in hierarchical structure defined inside the data base or which limitation expression exists among the respective nodes, hierarchical structure definition parts 3 and 4 for defining the hierarchical structure of knowledge inside the data base, knowledge correction part 5 having functions for blocking, changing and adding the respective nodes in the hierarchical structure, and knowledge display parts 2 and 7 for displaying the respective nodes in the hierarchical structure defined inside the data base on a knowledge correction operating picture.