基于反射式黑白码盘的模型车测速装置

针对在模型车上使用的测速装置仅戍本较高的旋转编码器的现况,根据实际智能模型车的测速需要,提出了一种能够实现精确测量成本又低的测速装置.该装置利用光遇到黑白条文反射强弱不同的原理,使用光电管与自制黑白码盘实现测速,通过比较芯片最终输出标准方波波形,直接输入单片机使用.该测速装置能够实现精确测量车速,同时很大程度上降低成本,具有制作容易,操作简单易于实现等优点.

Speed device of model car based on black and white stripe

To change the present situation that in the model car velocimetry device field, only the higher-cost rotary encoder can be used,in accordance with the actual smart model cars required, a precise measurement can be low-cost devices. The device is encountered by black and white using light of different provisions of the strength of the principle of reflection, the use of photoelectric tubes and homemade black-and-white encoder realize velocimetry, by comparing the final output of the standard square chip waveforms, the use of direct input single-chip microcomputer. The device could achieve accurate measurement of speed, at the same time reduce costs to a large extent, with the advantages of simple and easy to realize.