一种手机电流自动测试系统的设计与实现

发布时间：2019-03-17 16:47

【摘要】：移动互联网时代的到来，使得手机平均耗电量远高于2G时代，但增加电池容量的发展空间有限，减少手机功耗和保证手机电流使用安全稳定成为手机生产商的重要任务。传统手机电流测试方法采用手持设备如万用表测量电流，并采用人工记录的方式，但这样低的采集率会疏忽一些重要的电流变化数据，遗漏手机电流问题，人工成本高，，测试数据不足以作为依据。这需要厂家搭建起硬件测试系统来提供稳定的电源和精密测试。同时，为了全面客观的测试手机在不同状态、不同频段、不同通信协议和技术下的功耗性能，需要挑选合适数量的测试用例，但这些测试用例每条的操作和设置参数不同，手动设置复杂且容易出错。正是基于此，公司需要开发自动化测试系统来自动匹配不同的测试用例需求，减少人工。文章首先根据DG09规范选择并设计测试用例集，制定严格的测试流程，完成手机测试质量体系的关键步骤；然后设计与搭建自动化电流测试系统，从硬件上引入KEITHLEY2306作为稳定的手机电源和数据采样通道，搭建了整个硬件系统；软件方面，以在某软件平台上调用DLL的形式，实现了按照配置文件设置仪器一系列参数，发送AT命令让手机自动执行操作，完成批处理电流测试用例和数据基本计算，并生成测试报告；文章最后展示了实验成果，介绍了测试内容，展示分析了测试报告及功耗波形图、Excel表，然后说明当测试报告出异常值时该如何处理，最后通过测试报告和测试方法分析系统的特点。
[Abstract]:With the advent of mobile Internet era, the average power consumption of mobile phone is much higher than that of 2G era. However, increasing battery capacity has limited development space, reducing mobile phone power consumption and ensuring the safety and stability of mobile phone current usage has become an important task for mobile phone manufacturers. The traditional current test method of mobile phone adopts handheld device such as multimeter to measure current, and adopts manual recording method. However, the low collection rate will neglect some important current change data, omit the problem of mobile phone current, and the labor cost is high. The test data is not enough to be used as a basis. This requires manufacturers to build hardware testing systems to provide stable power and precision testing. At the same time, in order to comprehensively and objectively test the power consumption performance of mobile phones in different states, different frequency bands, different communication protocols and technologies, it is necessary to select the appropriate number of test cases, but each of these test cases has different operation and setting parameters. Manual setup is complex and error prone. It is precisely because of this that the company needs to develop automated test systems to automatically match different test case requirements and reduce manpower. This paper first selects and designs the test case set according to the DG09 specification, formulates the strict test flow, and completes the key steps of the mobile phone test quality system. Then the automatic current test system is designed and built, and the KEITHLEY2306 is introduced into the hardware as the stable power supply and data sampling channel of the mobile phone, and the whole hardware system is built. In the aspect of software, in the form of calling DLL on a certain software platform, set a series of parameters according to the configuration file, send the AT command to let the mobile phone automatically execute the operation, complete the batch current test case and the basic calculation of the data. And generate test report; Finally, the paper shows the experimental results, introduces the test content, shows and analyzes the test report, power consumption waveform, Excel table, and then explains how to deal with the test report when the abnormal value is found. Finally, the characteristics of the system are analyzed by test report and test method.
【学位授予单位】：华中科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN929.53;TP274

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