| 1. | A further research to the fault dictionary method is presented in this paper 本文是对模拟电路故障诊断中的直流字典法的进一步研究。 |
| 2. | When beginning to diagnose fault , we can consult the fault dictionary with gotten realtime circuit character 诊断时,先获取电路的实时特征,然后查字典,看其对应哪个故障。 |
| 3. | It tells how to design and build the database of expert knowledge , how to deal with fault dictionary and how to program with simulation algorithm 结合雷达的实际应用,对雷达的故障诊断提出了基于互联网的远程故障诊断的实现方法。 |
| 4. | After that the approach of automatically generating the fault dictionary is discussed , and a general diagnosis program for analogue circuits has been written to implement these techniques 在此基础上,讨论了字典法的自动实现方法,编制了通用模拟电路直流故障诊断软件。 |
| 5. | The practice shows that new methods have made fault tree more exact 5 decreased the total number of test nodes , and enhanced the real - time capability and accuracy of the fault dictionary method 应用表明:上述的改进使编写的故障树准确合理,减少了测试节点数,提高了诊断的正确性和实时性。 |
| 6. | The approach of fault dictionary often needs to simulate all fault states and extracts corresponding character of circuit , then setup the dictionary by corresponding relation 故障字典法通常需要在测前仿真各种故障状态,提取出与故障状态相对应的电路特征,再将两者一一对应关系列成一个表,即为字典。 |
| 7. | This thesis introduces the hardware and software design of one kind of radar diagnosis system , combines the fault dictionary and the fault tree analysis to locate the fault with exchangeable pcb or individual functional module 本文介绍了某雷达故障诊断系统的硬件设计和软件设计,提出了用字典法和故障树分析法相结合的方法进行故障诊断,将故障定位到可更换印刷电路板和独立功能组件。 |
| 8. | This paper describes diagnosis principle and strategy , and detailedly describes the practical fault diagnosis software which is designed by myself , including user interface , storage pattern of fault dictionary , editing module of fault dictionary and program call module 本文介绍了基于故障字典法的诊断原理和策略,并就设计的实用故障诊断软件进行了详细介绍,包括了用户界面、故障字典存储方式、故障字典编辑模块以及使用中的编程调用模块等方面。 |
| 9. | After analyzed the defaults of the fault dictionary method , several techniques to enhance the capability of the d . c . fault dictionary are presented . these include 1 ) using monte carlo analysis to get the node voltage tolerance , 2 ) using bayesian decision theory to direct the fuzzy set dividing , 3 ) selecting nodes by the fuzzy sets , 4 ) using the fault tree to diagnose the circuit ' s fault with varied sum of nodes 文中分析了字典法存在的问题,提出了改进方法,其中包括:用蒙特卡罗法求各节点电压的容差域;用贝叶斯决策理论来指导模糊集划分;以模糊集为特征进行节点优选;依故障诊断树进行变节点诊断。 |
| 10. | This particle gives out some detection method , mainly about creation algorithm of detection vector and checking up the fault - cover rate of detection vector by the way of fault simulation . creation algorithm of detection vector contains : pseudo - exhaustive testing , d algorithm , fault dictionary algorithm 本文针对电子线路在使用过程中发生的故障,提出了几种测试方法,主要讲述测试向量的生成算法及使用故障仿真的方法来检测测试矢量在故障检测过程中的故障覆盖程度。 |