基于磁通传感器的车辆行驶轨迹记录仪

A Vehicle Track Recorder Based on Magneto-Inductive Sensor

磁通方位传感器利用当地的地磁场矢量确定方位信息,并通过单片机对车辆转数脉冲的记录来组合成车辆的行驶轨迹。笔者根据磁通传感器的特点,采用高集成度的C8051F340单片机为核心,并利用大容量的存储器和LCD显示器等组成了一种基于磁通方位传感器、结构简单、低成本、高精度的车辆行驶轨迹记录仪。

A vehicle track recorder based on magneto-inductive sensor, which has merits of high precision, simple structure and low cost is introduced in the article. The magneto-inductive sensor using the local earth magnetic field to confirm the information of the orientation, and using the information of the orientation and the measurement of the vehicle revolution pulse, the track of the vehicle can be educed. According to the characteristic of the magneto-inductive sensor, the vehicle track recorder is composed of the magneto-inductive sensor, the C8051F340 (the high integration level Microcontroller-chip), the high capacity storage and LCD. The design of total structure, the hardware and software of this system are introduced.