一种无人机飞行控制软件自动测试方法

Automatic Test Method of UAV Flight Control Software

摘要:

针对机载飞行控制软件测试依赖硬件系统、测试周期长、手动测试方式效率低、重用性差、易出错和维护成本高等问题,研究了全数字仿真环境的关键技术,提出了一种机载飞行控制软件的自动测试方法。该测试方法在全数字仿真环境中进行测试,并对传统的测试数据生成算法进行改进,使用AETG-SA(Automated Expert Test Generator-Simulated Annealing)算法生成测试数据,将测试结果的反馈引入到算法中,动态调整算法参数,获得最优测试集合,提高了测试覆盖率。在全数字仿真环境中执行测试用例,减少了嵌入式软件测试过程中对硬件的依赖,对系统功能测试和故障模拟测试的覆盖更加全面。工程实践表明,基于全数字仿真环境的自动测试方法相较于传统全实物和半实物的测试方法测试充分性提升了4%,测试时间缩短了44%。

Abstract:

For the problems of airborne flight control management software test such as depending on hardware system,long test cycle,low efficiency of manual test,poor reuse,error-prone and high maintenance cost,the key technologies of full digital simulation environment is researched,an automatic test method for airbone flight control management software is presented. This test method based on the full digital simulation environment,improved traditional test data generation algorithm,uses the AETG-SA algorithm to generate test data,introduced feedback from test results into the algorithm and dynamically adjust algorithm parameters,obtain the optimal test set,and improves test coverage. Executing test cases in full digital simulation environment reduces the hardware dependency of embedded software testing process,and higher coverage of system function test and fault simulation test,and improves the effiiciency of test cases greatly. Compared with the traditional full-physical and semi-physical test methods,the engineering practice shows that the automated test method based on the full digital simulation environment improves 4% in sufficiency and 44% reduction in testing time.