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设计了采用红外激光探测和测距的汽车自适应驰控装置 ,该装置具有低成本的优势 ,适合在汽车上大规模应用。介绍了装置的组成及其工作原理。该装置采用单片机作为控制核心完成信号判别、距离、速度的测量及报警等任务。分析了系统的测距误差 ,提出了用数字插入法提高测距精度。
A vehicle self-adaptive speed control device using infrared laser detection and ranging is designed. The device has the advantages of low cost and is suitable for large-scale applications in automobiles. The composition of the device and its working principle are introduced. The device uses SCM as the control core to complete the signal discrimination, distance, speed measurement and alarm tasks. The system’s ranging error is analyzed, and the digital interpolation method is proposed to improve the accuracy of ranging.