The modeling of logic fault diagnosis problem based on petri net is the emphasis of the dissertation 2 、基于petri網(wǎng)的邏輯故障診斷模型是本文的核心。
Benefit from designer experience , expert system regulations are built by c language . through the inference , all fixed logic fault and most multi - line short circuit fault are detected by expert system . on that account , the design process built by c language will be a mode that can be imitated by other intelligent fault diagnosis system 對于專家系統(tǒng)智能故障診斷技術而言,構建專四川大學碩士學位論文家系統(tǒng)規(guī)則庫和設計推理機制是重點,本文采用c語言構建規(guī)則庫,然后通過精心設計的專家推理機,從而使得固定邏輯故障和大多數(shù)多線橋接故障能夠被專家診斷系統(tǒng)檢測出來。
Due to the shortage of petri net in fault diagnosis , this thesis brings forward logic fault diagnosis petri net model . this model was used into the lift fault diagnosis and the multi - fault and conflict problems in lift controller ' s fault diagnosis were solved successfully 針對petri網(wǎng)在故障診斷中的不足,在已有的故障診斷petri網(wǎng)理論基礎上,提出邏輯故障診斷petri網(wǎng)模型,并將之用到電梯控制系統(tǒng)故障診斷中,成功地解決了電梯控制系統(tǒng)故障診斷中一果多因的診斷難題。
However , because the automobile breakdown is characterized by suddenness , comprehensiveness and difference , at the time of failure detection , we still need concrete analysis of concrete conditions , that is , we should choose appropriate detection facilities or testing tools with correct logic fault analysis , and then establish the data of failure detection and diagnosis , by which we can locate the failure and carry out trouble shooting accurately and promptly 所以在檢測故障時,我們?nèi)孕枰唧w的情況具體分析即選擇適當?shù)臋z測設備或檢測工具輔以正確的故障分析邏輯,并在此基礎上建立故障檢測與診斷數(shù),才能準確、及時地對故障進行定位與故障排除。汽車智能檢測系統(tǒng)的研究與開發(fā)目的是為了解決汽車故障的智能化檢測,而現(xiàn)代汽車故障診斷的基礎是汽車用傳感器的測試。
When those ptvs are sequentially loaded to cut ( circuit under test ) from intelligent fault diagnosis system , homologous prvs ( parallel response vector ) are taken back . through test response analysis by expert system , intelligent fault diagnosis system can detect all fixed ' 1 ' logic fault , fixed ' 0 ' logic fault , and detect the majority of multi - line short circuit fault 當這些ptvs從pc機中依次加載到被測電路板后,相應的prvs (并行響應向量集)可以獲取供診斷系統(tǒng)進行測試響應分析,從而檢測出固定邏輯故障和橋接故障。
logic: n. 1.邏輯,理論學。 2.推理[方法];邏輯性,條理 ...fault: n. 1.過失,過錯;罪過,責任。 2.缺點,缺陷,瑕疵 ...fault tolerant logic: 容錯邏輯fault-tolerant logic: 容錯邏輯logic fault condition: 邏輯出錯條件logic short fault: 邏輯短路故障single-logic-fault analysis: 單一邏輯缺陷分析-logic: -logic, -logical 〔構成與 -logy 結(jié)尾的名詞相應的形容詞〕表示“…學的”: biological, philological. and logic: “與”邏輯logic: n. 1.邏輯,理論學。 2.推理[方法];邏輯性,條理性。 3. 威力,壓力,強制(力)。 deductive [inductive] logic演繹[歸納]邏輯。 dialectical logic辯證邏輯。 formal logic形式邏輯。 a gangster logic強盜邏輯,惡徒的歪理[言行]。 mathematical logic數(shù)理邏輯。 pure logic純粹邏輯。 He is not governed by logic. 他沒有邏輯性。 That is not logic. 那不合邏輯。 the irresistible logic of facts 事實的不可抗拒的威力。 the logic of events [war] 事件[戰(zhàn)爭]的強制力。 His logic is shaky. 他的推理站不住腳。 chop logic 詭辯。 logic-and: 邏輯“與”or logic: 或邏輯at fault: 感到困惑, 有故障; 有錯; 有過失; 有毛病; 罪有應得fault: n. 1.過失,過錯;罪過,責任。 2.缺點,缺陷,瑕疵。 3.(獵狗的)失去嗅跡。 4.【電學】故障,誤差;漏電;【地質(zhì)學;地理學】斷層。 5.【網(wǎng)球】發(fā)球出界;犯規(guī)。 Faults are thick where love is thin. 〔諺語〕一朝情義淡,樣樣不順眼。 fault detection 【機械工程】探傷。 The fault is his own. 這是他自己的錯。 a grave fault in a theory 理論上的重大缺陷。 a fault in the machine 機械故障。 image fault 【物理學】像差,影像失真。 numerical faults 數(shù)值誤差。 a fault on the right side 因禍得福。 be at fault 1. (獵犬追捕獵物等時)失去嗅跡,躊躇不前;不知所措,正在為難。 2. 出毛病,有故障。 3. = in fault (My memory is at fault . 我想不起來了)。 find fault in 看出…缺點。 find fault with 找…的岔子。 have no fault to find with 無錯可尋。 hit off a fault (獵狗)聞出(曾一度錯失的)嗅跡。 in fault 有過錯,有責任 (Who is in fault 是誰的不是?)。 to a fault 過度,極端 (He is kind to a fault. 他過分老實)。 whip a fault out of sb. 鞭打某人使之改過。 with all faults 不保證商品沒有缺點。 without fault 〔古語〕無誤,確實。 vi. 1.【地質(zhì)學;地理學】產(chǎn)生斷層;有斷層余跡。 2.發(fā)球出界;犯規(guī)。 3.〔方言〕責備,挑剔。 4.〔古語〕犯錯誤,做錯。 vt. 1.找…的岔子,挑剔;〔方言〕責備。 2.【地質(zhì)學;地理學】使產(chǎn)生斷層。 3.把…做錯。 He faulted my speech in two ways. 他認為我的講話有兩點不妥。 fault one's performance 表演發(fā)生失誤。 in fault: 有過錯no fault: 無過失to a fault: 過分地fault liability; liability for fault: 過錯責任fault page fault: 中斷過錯頁中斷fault scarp(fault escarpment): 斷層崖heave fault; tear fault: 捩斷層reversed fault(reverse fault): 逆斷層seissors fault differential fault: 剪斷層transcurrent fault(transverse fault): 橫移斷層active logic: 有源邏輯