基于电感传感器的自动循迹小车系统设计

Intelligent Tracking Car Based on Inductance Sensors

设计了一种基于电感传感器的自动循迹小车系统,该系统以MSP430F169为主控芯片,由电感传感器进行数据采集,实现小车自动循迹功能。系统由光耦隔离电动机驱动模块、减速电动机模块、蜂鸣器声音提示模块、液晶显示模块、编码器测速模块、蓝牙模块、电池模块组成;采用四轮驱动方式,由单片机输出可变脉冲信号驱动减速直流电动机,控制小车转向和速度;单片机通过不断扫描传感器4个通道输出的数据,控制小车完成循迹动作。当检测到障碍物时,单片机控制蜂鸣器模块发出声音提示;由单片机定时器模块实现精确计时,并由编码器测速装置测出小车运行的实时速度,将小车的实时运行时间和行驶距离显示在液晶屏幕上,系统设计精度高、功耗低。

A system of intelligent car is controlled by MSP430F169 microcontroller to realize the car automatic tracking function, inductive sensors are used for data acquisition. The car is made up of coupling isolation motor drive module, geared motor modules, buzzer sound module, LCD module, encoder module, Bluetooth module, battery module. It is a four-wheel driven vehicle, driven by microcontroller which outputs variable pulse signal, and can change steering and speed by DC motor, Microcontroller can continually scan four-channel data outputted by LDC1314 and control the car to complete tracing action. If an obstacle is detected, buzzer module yields voice prompt. It uses timer module for precise timing, uses encoder speed detector to detect the car speed, the elapsed time of the car and driving distances can be displayed on the LCD screen. This paper seeks to complete the system design in high precision and low power consumption.