WEN feng1, YUAN Xiao-kang1, DING Zhi-zhao2, WANG Xiao-li1， ZHEN Guo-yong1
（1. Science and Technology on Electronic Test & Measurement Laboratory， North University of China， Taiyuan 030051， China；2. The 41st Research Institute of China Electronics Technology Group Corporation, Qingdao 266555， China）
Abstract： 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.
Key words： cable tester； multi-thread parallel； least square method
CLD number： TP273Document code： A
Article ID： 1674-8042（2018）03-0214-05 doi： 10.3969/j.issn.1674-8042.2018.03.002
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基于多线程并行测试技术的电缆测试仪设计
文丰1， 袁小康1， 丁志钊2， 王晓丽1， 甄国涌1
（1. 中北大学 电子测试技术重点实验室， 山西 太原 030051； 2. 中国电子科技集团公司第四十一研究所， 山东 青岛 266555）
摘要： 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。
关键词： 电缆测试仪； 多线程并行； 最小二乘法
引用格式：WEN feng, YUAN Xiao-kang, DING Zhi-zhao, et al. Design of cable tester based on multi-thread parallel testing technology. Journal of Measurement Science and Instrumentation, 2018, 9(3)： 214-218. ［doi：10.3969／j.issn.1674-8042.2018.03.002］
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