红外传感器在障碍物探测应用中的抗干扰问题

避开环境红外光频率确定红外传感器接收器中带通滤波器的中心频率，根据带通滤波器中心频率选择发射器的发射频率，根据接收器响应时间选择发射器发射的红外光的调制频率，采用左右发射和轮流发光的机制，单片机多次查询接收器状态并对其加以分析，有效抑制了环境红外干扰信号，为机器人行为决策提供准确的障碍物信息。

The Anti-jamming Problem in Application of IR Transducer to Obstacle Detection

This paper avoids the frequencies of environmental infrared light to select the center frequency of band-pass filter in receiver, selects the frequency of infrared light emitted by infrared e-mitter according to the center frequency, selects the module frequency of infrared light according to the response time of receiver,adopts the alternative work mechanism of two emitters,makes single-chip microprocessor inquire of receiver twice and analyses the status. These measures restrict the disturbing signals from environment effectively.