本文介绍了利用单片机如何实现智能环形线圈车辆检测器,讨论了此类检测器的软硬件设计要点,给出了相应的接口电路。 关键词:AT89C52 单片机,线圈检测器,模糊分类 Abstract: In this paper,we introduces the principle of intellectual loop-coil detector in traffic,presents some chief interface circuit,and describes the highlights of designing this kind of detector by the AT89C52 single chip microcomputer. Keywords: AT89C52 single chip microcomputer, loop-coil detector, fuzzy classification