There is an electrical preventive maintenance task assigned to the Ground Fault Circuit Interrupter, that requires periodic testing of the unit.
应指定接地故障断路器的电气预防维护任务,此项任务要求对装置进行定期测试。
The knowledge base is designed as a multidimensional tree. The diagnosis data are collected through testing and reasoning the objects. Fault positioning is realized by using characteristic vectors.
知识库设计为多元故障树,诊断数据来源于对被诊断对象的测试与知识推理,依据特征向量实现故障定位。
Two main aspects in VLSI testing, fault simulation and test generation, are researched in this dissertation.
本文对VLSI测试中的两个主要问题—故障模拟和测试产生进行了深入的分析和研究。
Then, a new method testing the double fault of combinational circuits based upon Boolean partial derivative is proposed.
在此基础上提出了基于布尔偏导数的组合电路双故障检测的新方法。
Aiming at the problem of testing parametric fault in analog integrated circuits, an approach based on power spectrum correlation analysis for diagnosing parametric faults is presented.
针对模拟集成电路参数型故障的测试难题,提出了定位模拟集成电路参数型故障的功率谱相关分析方法。
The fault code reading and checking method on the status testing mode of the cruising control system on FAW MAZDA M6 is introduced with the maintenance of its main parts.
介绍一汽马自达M6轿车巡航控制系统在状态检测模式下故障码的读取及检查方法,以及巡航控制系统主要部件的检修。
It is of significance for the testing and action analysis of protection devices to reproduce the actual waveforms by use of fault record data of power system.
将电力故障录波数据重现为实际波形对于继电保护测试和保护动作行为分析等具有重要意义。
With an example of CAN in multiplex communication system on TOYOTA CROWN, the author introduces the constitution and fault codes of this system and general testing process and method of the CAN bus.
以丰田皇冠汽车多路通信系统中CAN为例,介绍CAN通信系统的组成、故障码和CAN总线的一般检测步骤和方法。
Through the synchronization of multiple analog acceleration sensors and adding the fault simulation, a testing and validation platform is implemented.
对多个模拟加速度传感器进行时间同步,加入故障模拟,构成模拟测试平台。
The system combines the Virtue Instrument technology and realizes circuits testing and fault diagnosis basically.
系统采用了虚拟仪器技术,基本实现了数模混合电路的测试与故障诊断。
The testing results demonstrate that these methods can be applied into power system fault diagnosis successfully, and have important theoretical value and application prospect.
测试结果表明,上述方法能够有效地应用于输电网故障诊断问题中,具有较高的理论价值与应用前景。
An efficient algorithm of the test point selection and fault diagnosis strategy for complex systems, considering reliability and testing costs, is presented based on the dependency matrix.
以相关性模型为基础,综合可靠性和测试费用等因素提出了一种系统级优选测试点方法和故障诊断策略。
Through pointer mapping set and fault model, it can detect null pointer dereference faults automatically and increases the testing efficiency.
通过指针映射集和故障模型,可以自动检测空指针引用内存故障,提高了测试效率。
The testing results show that AC test mode can realize the fault diagnose of advanced digital networks completely.
测试实例研究表明,交流测试可以实现高级数字网络的故障诊断。
Through study of the testing technique for oil feed circuit and designing principle of data fusion, the realization of fault test and diagnosis for hydraulic system was illustrated.
通过对液压系统供油回路的信号测试过程及信息融合方案的设计分析,阐明了液压系统故障检测和诊断的实现过程。
This thesis focuses on the fault diagnosis of digital circuit boards, by fully combining the testing resources of automatic test system with the related methods for fault diagnosis of digital circuit.
本论文的主要工作是充分结合自动测试系统的测试资源和数字电路故障诊断的相关方法对数字电路板进行故障诊断。
Experimental results show that the proposed strategy is effective in software testing for conquering test blindness, reducing test cost and improving fault coverage.
实验结果表明:该方法是一种有效的边界测试点选取策略,可以克服测试的盲目性,降低测试成本,明显地提高故障覆盖程度。
This paper presents a method for fault diagnosis based on the model and characters of combinatorial testing.
针对组合测试的基本模型和特征,提出了一种基于组合测试的软件故障诊断方法。
The other is a delay testing system based on variable double observations, including a TPG tool and a fault diagnosis tool.
一个是可变双观测点的时延测试系统,它提供了从时延测试到故障诊断等一系列测试工具。
The method uses wavelet transform and principle component analysis to preprocess fault signal, afterward training and testing wavelet neural network with the preprocessed fault characteristic data.
该方法首先利用小波变换和主成分分析对故障信号进行预处理,然后用处理后的故障特征数据对小波神经网络进行训练和测试。
For testing chip pins, the fault coverage can reach 100%, and the fault position can be positioned with high accuracy.
对芯片管脚的测试可以提供100%的故障覆盖率,且能实现高精度的故障定位。
The unified formula of testing set for multiple stuck fault in digital system is proved. The constant is contained within the unified formula to shorten the time of fault diagnosis.
证明了数字系统内部多重固定故障状态下的测试集统一公式,因其包含常数而缩短了故障诊断的时间。
The arc fault diagnosis method proposed is proved to be reliable and practical by testing, and it may provide directive significance and application value to the protection for the arc fault.
根据样机的测试结果表明,本文提出的电弧故障诊断方法可靠有效,对我国的电弧故障保护技术具有指导意义和应用价值。
SPICE experiments were done to simulate the dynamic currents of both the fault circuits and fault free circuits under the function of testing pairs.
对于这些测试向量对,通过SPICE软件模拟了故障电路和无故障电路在测试向量对作用下的动态电流。
Experimental results show that the proposed testing algorithms have merits such as high fault coverage, strong diagnostic ability and less testing time.
实验结果表明,此测试算法具有故障覆盖率高,诊断故障能力强,测试需要的时间少等优点。
This paper has introduced common testing methods as well as fault handling measures by practice, these methods and measures have reference value for the testing work of meter loop.
本文介绍了仪表回路试验的方法以及常见故障的处理措施,经实践检验,该方法和措施对仪表回路的试验工作具有参考价值。
Based on abstract analysis of the composing of embedded system and testing of embedded software, a method of embedded software simulation testing based on fault injection is presented.
在嵌入式系统组成特性和嵌入式软件测试抽象分析基础上,提出了一种基于故障注入的嵌入式软件仿真测试方法。
Through pointer mapping sets and fault model, it can detect bad deallocation, memory leak and null pointer dereference faults automatically and increase the testing efficiency.
通过指针映射集和故障模型,可以自动检测内存释放异常、内存泄露和空指针引用等动态内存故障,提高了测试效率。
A path delay fault testing generation algorithm for digital circuits based on neural network is proposed because the testing generation for path delay fault in digital circuits is more difficult.
针对数字电路路径时滞故障测试生成较难的问题,提出了基于神经网络的数字电路路径时滞故障测试生成算法。
The properties of Boolean difference are made use of to derive a new method for fault testing in combinational logic circuits. This method is simpler and different from the traditional one.
本文利用布尔差分的性质,给出了一种不同于传统的求组合逻辑线路故障测试码的新方法,对故障测试有一定的简化作用。
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