Then , according to the requirement analysis , concept design , logic design and database design , the electronic instrument failure rate database was designed and the components failure rates and n factors in gjb / z299b - 98 were established in the database 其次,按照開發(fā)關(guān)系型數(shù)據(jù)庫(kù)所要求的需求分析、概念設(shè)計(jì)、邏輯設(shè)計(jì)和物理設(shè)計(jì)四個(gè)階段,設(shè)計(jì)了電子設(shè)備失效率數(shù)據(jù)庫(kù)并做了數(shù)據(jù)錄庫(kù)工作。
How to improve the reliability of electronic instrument in design stages has got more and more attention recently . traditionally , the reliability was predicted by components failure rates based software analysis , and the design scheme was revised according to the prediction results 現(xiàn)今,如何在設(shè)計(jì)階段提高電子設(shè)備的可靠性越來(lái)越引起了人們的關(guān)注,國(guó)內(nèi)外通用的做法是利用基于元器件失效率數(shù)據(jù)的分析軟件預(yù)測(cè)其可靠性,然后根據(jù)預(yù)測(cè)結(jié)果完善設(shè)計(jì)方案。