因前风挡贴膜导致车辆导航定位不准的故障分析

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【摘  要】因外部原因、车辆前风挡膜、安装非原装级行车记录设备等易引起车辆导航定位迟滞、偏移，影响用户用车体验。本文根据车辆定位原理，通过对车机多媒体的搜星能力和与卫星交互数据的能力以及信号的稳定性、可靠性进行排查分析，解决信号较差的问题。

【关键词】导航定位;前风挡贴膜;信号干扰

中图分类号：U463.675    文献标识码：B    文章编号：1003-8639（ 2024 ）09-0081-02

Fault Analysis of Vehicle Navigation and Positioning Error Caused by Front Windshield Film

LI Jingwei，GE Limin，WANG Long，CHENG Zhigang，CHE Changfa，CAO Yongyong

（Geely Automobile Research Institute （Ningbo） Co.，Ltd.，Ningbo 315336，China）

【Abstract】Due to external reasons，vehicle front windshield film，installation of non-original driving record equipment，etc.，it is easy to cause vehicle navigation and positioning lag and deviation，affecting the user's car experience. According to the principle of vehicle positioning，this paper investigates and analyzes the ability of vehicle multimedia to search for stars and interact with satellite data，as well as the stability and reliability of the signal，and solves the problem of poor signal.

【Key words】navigational positioning;front windshield film;signal interference

1  问题现象

某车型用户反馈，在启动车辆后，打开地图并设置目的地后，路线规划显示迟缓或无法规划路线，尤其是在多栋楼宇之间、地库、稍僻区域等位置，会发生路线规划失败。（剩余2887字）