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行驶记录仪作为一种车载设备,可以用来监控车辆在运行过程中的实时状态,并进行有效的存储。同时随着北斗产业的发展壮大,两者之间的结合可进一步有效提高设备的用户体验及稳定性。但是在实际的使用过程中,由于设备终端处在一个相对不规律的场所,其维护和故障诊断工作将变得异常困难。本文依据记录仪设备现有通信的功能模块,通过GPRS网络来实现终端对于升级代码的下载,并通过GSM网络的短信功能来与设备进行相关数据的交互进而实现故障诊断,为保障代码升级过程中的稳定性同时引入启动代码。测试结果表明相关模块运行稳定,并可以有效地完成升级代码的更新。同时设备通过对当前短信内容的识别可以反馈设备当前的所有必要信息,成功实现故障远程诊断功能。
The tachograph is a vehicle-mounted device that monitors the real-time status of a vehicle during operation and stores it efficiently. At the same time with the development and expansion of the Beidou industry, the combination of the two can further effectively improve the user experience and stability of the equipment. However, in actual use, the maintenance and troubleshooting of the equipment terminal will become extremely difficult due to the terminal equipment being located in a relatively irregular place. In this paper, according to the function modules of the existing communication equipment of recorder, through the GPRS network to realize the terminal to download the upgrade code, and through the SMS function of the GSM network to interact with the device to achieve the relevant data and fault diagnosis, in order to protect the code upgrade process The stability of the introduction of the startup code. The test results show that the related modules are stable and can effectively update the upgrade code. At the same time, the device can feedback all necessary information of the current device through the identification of the content of the current short message, and successfully implement the remote fault diagnosis function.