CAJ | 학술논문

为了对汽车OBD系统的氧传感器信号进行采集和分析，文章选用TMS320F2812微处理器开发环境，设计了基于TMS320F2812和LabVIEW的数据采集系统，并利用试验证明了检测系统的有效性，得到利用微处理器采集的氧传感器数据，在LabVIEW软件界面能够以波形的形式动态显示实时的氧传感器电压信号，并完成该信号数据的保存工作，从而实现了对发动机数据的实时监控，为后续的OBD性能分析奠定了基础。
위료대기차OBD계통적양전감기신호진행채집화분석，문장선용TMS320F2812미처리기개발배경，설계료기우TMS320F2812화LabVIEW적수거채집계통，병이용시험증명료검측계통적유효성，득도이용미처리기채집적양전감기수거，재LabVIEW연건계면능구이파형적형식동태현시실시적양전감기전압신호，병완성해신호수거적보존공작，종이실현료대발동궤수거적실시감공，위후속적OBD성능분석전정료기출。
In order to acquire and analyze signals from oxygen sensor, first the development environment of TMS320F2812 has been chosen and functions of each module are introduced in the paper. A data acquisition system based on TMS320F2812 and LabVIEW is designed, and the accuracy of the system is proved by experiment, the data of the oxygen sensor collected by microprocessor is obtained. The reahime voltage signal of oxygen sensor is displayed in the form of dynamic in the interface of software LabVIEW, and the preservation of the signal data is completed. Thus, a reahime system monitoring of engine data is established, laying foundation for the follow-up analysis of OBD performance.