车载终端数据发送系统改进设计  

Improvement Design of Data Transmission System of TBOX

作　　者：辛英 张延良 武迎迎 李国朋 孙龙洋 XIN Ying;ZHANG Yan-liang;WU Ying-ying;LI Guo-peng;SUN Long-yang(Weichai Power Co.,Ltd.,Weifang Shandong 261061)

机构地区：[1]潍柴动力股份有限公司,山东潍坊261061

出　　处：《数字技术与应用》2021年第5期118-120,共3页Digital Technology & Application

摘　　要：针对车载终端在数据接收和数据发送过程中的丢包问题,本文提出一种车载终端数据发送系统的改进设计方案。该方案通过数据缓存池方法将车载终端的数据接收和数据发送过程拆分。对车载终端收到的数据进行数据元素模型设计,将原数据发送过程分解为数据打包、数据缓存和数据发送过程,并基于STM32-405和SIM7600G-H配置的车载终端进行了数据采集回传过程验证,试验证明改进后的数据发送系统能够有效降低数据回传丢包率。Aiming at the problem of packet loss in the process of data receiving and transmission of vehicle terminal,this paper proposes an improved design scheme of vehicle terminal data transmission system.In this scheme,the data receiving and data sending process of the vehicle terminal is divided,and the data buffer pool is designed.The data element model is designed for the data received by the vehicle terminal,and the original data sending process is designed as data packaging,data caching and data sending process.The data collection and return process is verified based on the vehicle terminal with stm32-405 and sim7600g-h configuration,and the test results are given.It is verified that the improved data transmission system can effectively reduce the packet loss rate of data return.

关 键 词：数据接收 数据缓存 数据打包 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]