| 引用本文: | 王鹏,于永利,李星新,刘晨光,孙也尊.多状态系统测试建模与测试点选取方法[J].哈尔滨工业大学学报,2022,54(6):54.DOI:10.11918/202008020 |
| WANG Peng,YU Yongli,LI Xingxin,LIU Chenguang,SUN Yezun.Multi-state system test modeling and test point selection method[J].Journal of Harbin Institute of Technology,2022,54(6):54.DOI:10.11918/202008020 |
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| 多状态系统测试建模与测试点选取方法 |
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王鹏1,3,于永利1,李星新1,刘晨光1,孙也尊2
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(1.陆军工程大学(石家庄校区) 装备指挥与管理系,石家庄 050003;2.中国人民解放军32382部队,北京 100072; 3.中国人民解放军32200部队,辽宁 锦州 121000)
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| 摘要: |
| 为解决测试性设计过程中的退化状态测试问题,提出了基于结构和功能的多状态系统测试建模与测试点选取方法。首先,结合多状态系统中对性能状态的描述,明确了以结构和功能为对象的多状态系统测试建模的总体思路,并对模型中的结构、功能和测试相关描述进行了分析；其次,对状态测试问题进行了分析,并对单个测试能够检测的状态集与测试集组合能够检测的状态集的计算方法进行了研究,并提出状态检测率的概念对系统状态的测试指标进行量化；最后,考虑到系统测试性设计与分析中包含故障的测试性问题,结合故障检测率、故障隔离率和状态检测率,提出了测试代价约束下的多状态系统测试点选取方法。结果表明:多状态系统测试建模方法不仅能够对故障的测试性进行分析还能够对退化状态的测试性进行分析；相较于二态系统测试选择方法得到的最佳测试集,在测试代价限制的情况下,多状态系统测试选择方法得到的最佳测试集能够获得较高的状态检测率；在测试代价无限制的情况下,多状态系统测试选择方法得到的最佳测试集不仅能够获得较高的状态检测率,还能获得与二态系统相同的最大故障检测率和故障隔离率。 |
| 关键词: 多状态系统 测试性建模 状态检测 测试点选取 故障检测与隔离 |
| DOI：10.11918/202008020 |
| 分类号:N945.17 |
| 文献标识码:A |
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| Multi-state system test modeling and test point selection method |
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WANG Peng1,3,YU Yongli1,LI Xingxin1,LIU Chenguang1,SUN Yezun2
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(1.Department of Equipment Command and Management,Army Engineering University of PLA, Shijiazhuang 050003, China; 2. 32382 troops of the PLA, Beijing 100072, China; 3. 32200 troops of the PLA, Jinzhou 121000, Liaoning, China)
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| Abstract: |
| To solve the test problem of degradation state in testability design, this paper proposes a multi-state system test modeling and test point selection method based on structure and function. Firstly, considering the description of performance states in multi-state system, the general idea of multi-state system test modeling based on structure and function was defined, and the related descriptions of structure, function, and test in the model were analyzed. Secondly, the problem of state testing was discussed, and the calculation methods for the state sets that can be detected by a single test or by a combination of test sets were analyzed. In addition, the state detection rate was proposed to quantify the test indexes of the system states. Finally, given that the fault testability problem is included in system testability design and analysis, a test point selection method of multi-state system integrating fault detection rate, fault isolation rate, and state detection rate was proposed under test cost constraint. Results show that the multi-state system test modeling method could analyze the testability of fault as well as the testability of degraded state. Compared with that obtained by the test selection method of binary system, the optimal test set obtained by the test selection method of multi-state system achieved higher state detection rate under test cost limitation. In the case of unlimited test cost, the optimal test set obtained by the test selection method of multi-state system not only achieved higher state detection rate, but also obtained the same maximum fault detection rate and fault isolation rate as those of binary system. |
| Key words: multi-state system testability modeling state detection test point selection fault detection and isolation |
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