A new car sensing system using an amorphous wire CMOS magneto-impedance (MI) sensor built into a disk set on the road is presented. When a car passes above the disk, the MI sensor detects stray fields from the car body. The speed and length of a car can be estimated processing the signals from two MI sensors. A prototype disk with two MI sensors, a microcomputer, and a semiconductor IC memory built-in has been developed. The disk system can record the length, the velocity and the time when a car passed for two thousand cars. The proposed sensing system is useful for automatic traffic measurements.


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    Title :

    Car traffic monitoring system using MI sensor built-in disk set on the road


    Contributors:
    Uchiyama, T. (author) / Mohri, K. (author) / Itho, H. (author) / Nakashima, K. (author) / Ohuchi, J. (author) / Sudo, Y. (author)


    Publication date :

    2000


    Size :

    3 Seiten, 6 Quellen





    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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