穿戴式车载温度振动一体测试系统设计  

Design of wearable In-Vehicle temperature and vibration integrated testing system

作　　者：叶壘 贾云飞[1] 王美君 Ye Lei;Jia Yunfei;Wang Meijun(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《电子测量技术》2024年第7期49-54,共6页Electronic Measurement Technology

摘　　要：为了简化车辆测试人员在车辆测试过程中设备安装流程,提高车辆测试效率,设计了一种可长时间工作的穿戴式车载温振一体测试系统。测试节点设备以STM32单片机为主控,采用磁吸式安装,借助于开发的多功能适配器各测试节点可进行同步设置,实现同一时间基准下工作,并以U盘的形式与上位机连接,方便测试数据读取;多功能适配器还可对各测试模块进行充电、参数设置、数据读取和收纳提高了整套设备的勤务性。通过多项实验室功能测试和实车测试表明,本装置的安装方式方便可靠大大缩短了测试装备布置时间;测试系统振动采集精度相对误差1%以内,温度采集误差±0.1℃;多设备采集同步时差在μs级别。能够对车辆的温度和振动数据进行有效采集并存储,满足车辆运行状态参数采集的需要。A wearable,integrated vehicular temperature and vibration testing system has been devised to streamline equipment setup processes during vehicle testing,thereby bolstering testing efficiency.The system′s testing nodes,governed primarily by STM32 microcontrollers,are affixed using magnetic suction mechanisms.Leveraging a multifunctional adapter developed for the purpose,synchronization and concurrent configuration of diverse testing nodes are achievable,ensuring operation within a unified temporal framework.Data interchange with the host computer is facilitated through USB flash drive connectivity,facilitating seamless retrieval of test data.Furthermore,the multifunctional adapter offers ancillary functionalities such as charging,parameter configuration,data retrieval,and storage,augmenting the overall efficacy of the equipment.Extensive experimentation encompassing laboratory validation and real-world vehicular trials attests to the system′s convenient and dependable installation modality,markedly curtailing equipment setup durations.The testing system exhibits vibration acquisition accuracy within a relative error margin of 1%,while temperature acquisition errors are confined within±0.1℃.Synchronization time discrepancies among multiple devices are constrained to the microsecond level.This system adeptly captures and archives temperature and vibration data pertinent to vehicular operations,effectively catering to the exigencies of operational state parameter acquisition for vehicles.

关 键 词：穿戴式 车载测试 同步设置 U盘储存 

分 类 号：TH825[机械工程—仪器科学与技术] TH811[机械工程—精密仪器及机械] TN06[电子电信—物理电子学]