Microwave size/speed vehicle detector

Details Microwave size/speed vehicle detector Microwave size/speed vehicle detector

G - Physics

01

S

343/12

G01S 13/534 (2006.01) G01P 3/36 (2006.01) G08G 1/04 (2006.01)

Patent

CA 1295397

MICROWAVE SIZE/SPEED VEHICLE DETECTOR ABSTRACT A vehicle sensing apparatus and method for detecting the size and speed of a vehicle traveling on a roadway. The apparatus comprises a directional microwave non-emitting antenna for collecting reflected microwave signals from above a roadway. An electronic vehicle sens- ing circuit is connected to the antenna for processing detected signals to identify a vehicle's physical para- meter. The sensing circuit has an ambient temperature detector and a peak detector, the latter detecting a reflected temperature signal at said antenna and generat- ing a detected temperature signal. A physical parameter calculating circuit is provided for determining the true amplitude of the detected signal and interpreted by the maximum ratio of the solid angles of the antenna beam filled by the vehicle to be detected and a roadway in the beam of the antenna. A processing circuit (ROM) is provided to identify the vehicle's physical parameter. A vehicle speed calculating circuit (ROM) is also connected to the peak detector for providing a value of the antenna effective footing length to a divider circuit which is also fed a half pulse time whereby to provide a speed output.

561663

Affiliated with

Also associated with

Rating

Microwave size/speed vehicle detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microwave size/speed vehicle detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave size/speed vehicle detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1311274