With the rapid development of internet Router, the complexity of its mainboard has been growing dramatically. The high reliability requirement renders the number of testing cases increasing exponentially, which becomes the bottleneck that prevents further elevation of the production efficiency. In this work, we develop a novel optimization method of two major steps to largely reduce the testing time and increase the testing efficiency. In the first step, it optimizes the selection of test cases given the required amount of testing time reduction while ensuring the coverage of failures. In the second step, selected test cases are optimally scheduled to maximize the efficiency of mainboard testing. A numerical experiment is investigated to illustrate the effectiveness of the proposed methods. The results show that the optimal subset of the test cases can be selected satisfying the 10% testing time reduction requirement, and the effectiveness index of the scheduled sequence can be improved by more than 75% with test case sequencing. Moreover, our method can self-adjust to the new failure data, which realizes the automatic configuration of board test cases.

中文翻译：

---

优化互联网路由器主板加速可靠性测试的效率

随着互联网路由器的飞速发展，其主板的复杂性急剧增加。高可靠性要求使得测试用例数量呈指数级增长，成为阻碍生产效率进一步提升的瓶颈。在这项工作中，我们开发了一种包含两个主要步骤的新型优化方法，以大大减少测试时间并提高测试效率。在第一步中，它优化了测试用例的选择，以减少所需的测试时间，同时确保故障的覆盖率。第二步，对选定的测试用例进行优化安排，以最大限度地提高主板测试的效率。数值实验进行了研究，以说明所提出的方法的有效性。结果表明，可以选择出满足10%测试时间减少要求的测试用例的最优子集，并且通过测试用例排序可以将调度序列的有效性指标提高75%以上。此外，我们的方法可以对新的故障数据进行自我调整，从而实现板测试用例的自动配置。