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Testing cockpit display systems of aircraft using a model-based approach
Software and Systems Modeling ( IF 2.0 ) Pub Date : 2021-01-04 , DOI: 10.1007/s10270-020-00844-z
Hassan Sartaj , Muhammad Zohaib Iqbal , Muhammad Uzair Khan

Avionics are highly critical systems that require extensive testing to comply with international safety standards. Cockpit display systems (CDS) are a mandatory part of modern cockpits of both manned and unmanned aircraft. The information from various avionics components is displayed on CDS using a variety of flight instruments. An important part of testing avionics systems is to evaluate whether the displayed information on the CDS is correct or not. A common industrial practice is to manually test CDS, which is time-consuming, labor-intensive, and error-prone. In this paper, we propose a model-based approach to automate the CDS testing of aircraft. The proposed approach tests the CDS at two levels: (i) at the system level to verify that the CDS are working correctly and (ii) at system integration level of CDS when these are integrated with various avionics components. As a part of our approach, we develop a UML profile to model various elements of the CDS. The models are then used to support the automated testing process. We evaluate our approach on two industrial case studies, the first case study represents a primary flight display (PFD) of an aircraft and the second one is the CDS of the ground control station (GCS-CDS) of an unmanned aerial vehicle. The evaluation results show that three potential faults are identified in the PFD and four major faults are found in the GCS-CDS.



中文翻译:

使用基于模型的方法测试飞机的座舱显示系统

航空电子设备是高度关键的系统,需要进行大量测试才能符合国际安全标准。座舱显示系统(CDS)是有人和无人飞机的现代驾驶舱的必不可少的部分。来自各种航空电子组件的信息使用各种飞行仪器显示在CDS上。测试航空电子系统的重要部分是评估CDS上显示的信息是否正确。常见的工业实践是手动测试CDS,这是耗时,费力且容易出错的。在本文中,我们提出了一种基于模型的方法来自动化飞机的CDS测试。提议的方法在两个级别上测试CDS:(i)在系统级别验证CDS是否正常工作,以及(ii)在将CDS与各种航空电子组件集成在一起时,在CDS的系统集成级别。作为我们方法的一部分,我们开发了一个UML概要文件来对CDS的各个元素进行建模。然后使用这些模型来支持自动化测试过程。我们在两个工业案例研究中评估我们的方法,第一个案例研究代表飞机的一次飞行显示(PFD),第二个案例研究无人机的地面控制站(GCS-CDS)的CDS。评估结果表明,在PFD中识别出三个潜在故障,在GCS-CDS中发现了四个主要故障。然后使用这些模型来支持自动化测试过程。我们在两个工业案例研究中评估我们的方法,第一个案例研究代表飞机的一次飞行显示(PFD),第二个案例研究无人机的地面控制站(GCS-CDS)的CDS。评估结果表明,在PFD中识别出三个潜在故障,在GCS-CDS中发现了四个主要故障。然后使用这些模型来支持自动化测试过程。我们在两个工业案例研究中评估我们的方法,第一个案例研究代表飞机的一次飞行显示(PFD),第二个案例研究无人机的地面控制站(GCS-CDS)的CDS。评估结果表明,在PFD中识别出三个潜在故障,在GCS-CDS中发现了四个主要故障。

更新日期:2021-01-04
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