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    Analysis of methods for long vehicles speed estimation using anisotropic magneto-resistive (AMR) sensors and reference piezoelectric sensor

    Analysis of methods for long vehicles speed estimation using anisotropic magneto-resistive (AMR) sensors and reference piezoelectric sensor

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    With rapidly increasing traffic occupancy, intelligent transportation systems (ITSs) are a vital feature for urban areas. This paper analyses methods for estimating long (L > 10 m) vehicle speed and length using a self-developed system, equipped with two anisotropic magneto-resistive (AMR) sensors, and introduces a method for verifying the results. A well-known cross-correlation method of magnetic signatures is not appropriate for calculating the vehicle speed of long vehicles owing to limited resources and a long calculation time. Therefore, the adaptive signature cropping algorithm was developed and used with a difference quotient of a magnetic signature. An additional piezoelectric polyvinylidene fluoride (PVDF) sensor and video camera provide ground truth to evaluate the performances. The prototype system was installed on the urban road and tested under various traffic and weather conditions. The accuracy of results was evaluated by calculating the mean absolute percentage error (MAPE) for different methods and vehicle speed groups. The experimental result with a self-obtained data set of 600 unique entities shows that the average speed MAPE error of our proposed method is lower than 3% for vehicle speed in a range between 40 and 100 km/h.

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    Titel :

    Analysis of methods for long vehicles speed estimation using anisotropic magneto-resistive (AMR) sensors and reference piezoelectric sensor

    Beteiligte:
    Markevicius, Vytautas (Autor:in) / Navikas, Dangirutis (Autor:in) / Miklusis, Donatas (Autor:in) / Andriukaitis, Darius (Autor:in) / Valinevicius, Algimantas (Autor:in) / Zilys, Mindaugas (Autor:in) / Cepenas, Mindaugas (Autor:in)
    Erscheinungsdatum :

    2020-01-01

    Anmerkungen:

    Sensors, Basel : MDPI, 2020, vol. 20, iss. 12, art. no. 3541, p. 1-15 ; ISSN 1424-8220

    Medientyp :

    Aufsatz (Zeitschrift)

    Format :

    Elektronische Ressource

    Sprache :

    Englisch

    Schlagwörter :

    AMR , cross-correlation , long vehicles , magnetic field measurement , sensors , vehicle speed estimation

    Klassifikation :

    DDC:    629

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