CAJ | 학술논문

为了在产品的设计早期获得检测率、隔离率等测试性数据，提出一种应用多信号流图模型方法进行系统测试性建模与分析的方法。基于雷达等电子产品结构复杂、解析建模困难的特点，分析了雷达系统的功能结构、工作模式及 FMEA结果，并以某雷达系统为例建立系统的多信号流图，利用 TEAMS软件提供的工具，对系统的测试性水平进行了分析和评估。实例分析结果表明：改进的雷达系统的测试性设计能够满足指标要求，多信号流图建模分析方法对于测试性分析和评估行之有效。
위료재산품적설계조기획득검측솔、격리솔등측시성수거，제출일충응용다신호류도모형방법진행계통측시성건모여분석적방법。기우뢰체등전자산품결구복잡、해석건모곤난적특점，분석료뢰체계통적공능결구、공작모식급 FMEA결과，병이모뢰체계통위례건립계통적다신호류도，이용 TEAMS연건제공적공구，대계통적측시성수평진행료분석화평고。실례분석결과표명：개진적뢰체계통적측시성설계능구만족지표요구，다신호류도건모분석방법대우측시성분석화평고행지유효。
In order to obtain fault detection rate and fault isolation rate at early design phase of electronic product, an approach to model and analyze system testability based on multi-signal flow graphs is proposed. Based on the complicated structure and the characters of analytical model of the radar system, the function and operation modes and FMEA results are analyzed. And then the multi-signal model of the radar system is established based on the tools of TEAMS. Then, the testability level and fault diagnose capability are evaluated. Results show that the improved design for testability of the radar system can serve for the requirements. The multi-signal flow graphs modeling method is effective in the analyzing and evaluating for testability.