车载导航仪静态电流测试装置的研制  

Development of Static Current Testing Device for Vehicle Navigator

作　　者：张博 ZHANG Bo(Heilongjiang Institute of Metrology Verification and Testing,Harbin 150036 China)

机构地区：[1]黑龙江省计量检定测试研究院,黑龙江哈尔滨150036

出　　处：《自动化技术与应用》2020年第4期177-181,185,共6页Techniques of Automation and Applications

基　　金：黑龙江省计量院基本科研业务费项目“车载导航影音系统能耗测试仪的研制”(编号JLY-JBKYYWF-2017-005)。

摘　　要：本文介绍了一种高精度车载导航仪静态电流测试装置的研制过程,以微控制器W78E516B[1]为核心通过控制数字电路外围芯片,来输出高准确度直流供电电源给导航仪并测量其静态电流的大小,以实现对产品性能的测试,仪器技术指标国内领先,对消除汽车安全隐患和保护消费者权益具有重要意义。This paper introduces the development process of a high precision static current testing device for vehicle navigation instrument. The microcontroller STC89C51 is used as the core through the control chip and peripheral circuit. To output high accuracy DC power supply to navigator and measure its static current. In order to test the product performance, instrument technical indicators leading domestic. It is of great significance for eliminating hidden dangers of automobile safety and protecting consumers’ rights and interests.

关 键 词：车载导航仪 静态电流 W78E516B 

分 类 号：TN965[电子电信—信号与信息处理]