Passive acoustic traffic monitoring system

Details Passive acoustic traffic monitoring system Passive acoustic traffic monitoring system

1996-06-28

1999-03-02

Zanelli, Michael

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Traffic analysis or control of surface vehicle

701118, 701119, 367135, 340943, H04B 1100, G08G 101, G08G 104

Patent

active

058783679

ABSTRACT:
Traffic is monitored in individual lanes of a roadway as to vehicle count or presence, speed and direction of movement by mounting a microphone array high above the road surface, digitizing the output signals of the microphones, filtering, beamforming and storing the digitized signals to provide separate power histories for separate locations in individual lanes. These power histories are then analyzed to provide vehicle movement data for each lane.

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