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提出一种以8031单片机为基础的汽车速度实时数字检测方法。此方法利用8031片内所带的可编程定时/计数器和I/O口,采用了改进的多倍周期测速法,合理地解决了测速系统测量时间与测量精度之间的矛盾,使得测速系统能够在规定的测量时间内提供尽量高精度的速度测量。
A real-time digital detection method based on 8031 MCU is proposed. This method takes advantage of the programmable timer / counter and I / O port in the 8031 chip and adopts the improved multi-cycle speed measurement method to reasonably solve the conflict between the measurement time and the measurement accuracy of the speed measurement system so that the speed measurement system can Provide the best possible speed measurement within the specified measurement time.