基于多线程并行测试技术的电缆测试仪设计（英文）

为实现复杂的电子系统电缆网的效率、可靠性和安全性测试,设计了一种高效的电缆网阻值测试仪。首先,对设计背景以及硬件构成进行了简要说明;其次,针对测试仪测试中存在的参数实时测量和系统实时控制的多任务并行特点,采用了并行测试多线程技术,开发实时多任务控制软件,实现多任务复杂控制,最后,应用最小二乘法等方法提高了测试仪测试精度。测试结果表明,测试误差基本都在0.3%以内,测试速度可达到345点/min。

Design of cable tester based on multi-thread parallel testing technology

In order to realize the efficiency,reliability and safety tests on the complex cable network of an electronic system,an efficient cable network resistance tester is designed. Firstly, the design background and hardware structure are briefly described.Then aiming at the multi-task parallelism considering real-time measurement of parameters and real-time control of the system in the tester testing,a real-time multi-task control software is developed by using multi-thread testing technology in parallel test to realize multi-task complex control.Finally,the least squares method is used to improve the test accuracy of the tester.The test results show that the test error is basically within 0.3%,and the test speed can reach 345 point/min.