The EVAS provides warning for hearing-impaired motor vehicle drivers that an emergency vehicle is in the local vicinity. Direction and distance to the emergency vehicle are presented visually to the driver. This is accomplished by a special RF transmission/reception system. During this phase the receiver and transmitter from Phase 1 were updated and modified and a directional antenna developed. The system was then field tested with good results. Static and dynamic (moving vehicle) tests were made with the direction determined correctly 98 percent of the time.


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    Title :

    Emergency Vehicle Alert System, Phase 2


    Contributors:
    T. Barr (author) / W. Harper (author) / B. Reed (author) / D. Wallace (author)

    Publication date :

    1993


    Size :

    152 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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