Vehicle identification system for electric toll collection syste

Details Vehicle identification system for electric toll collection syste Vehicle identification system for electric toll collection syste

1997-04-10

1999-10-19

Pitts, Harold I.

Communications: electrical

Traffic control indicator

Combined

235384, G06G 100

Patent

active

059696419

ABSTRACT:
A plurality of antennas receives radio wave transmitted from a vehicle which comes in a toll collection area. Each antenna has at least three antenna elements, and the antennas are disposed in the horizontal direction and vertical direction. The signal analyzer analyzes the ID signal included in the received radio wave to identify the vehicle. The direction detector measures the direction of arrival (DOA) of radio wave received by two antennas selected by the antenna selector by way of two-dimensional interferometry principle in terms of the directional angle and depression angle. The location detector calculates the location of the vehicle in the horizontal direction and the height in the vertical direction of the vehicle as a location information based on the DOA of the radio wave measured by the direction detector. The vehicle tracking unit generates the locus data of the vehicle based on the location information calculated by the location detector and the information for identifying the vehicle analyzed by the signal analyzer. On the other hand, the video camera takes a picture of the vehicle which comes in the toll collection area to obtain the picture data. The data correlation unit judges whether the vehicle is a violator vehicle by correlating the picture data and locus data. The controller registers the locus data and picture data of the vehicle if the vehicle is a violator vehicle. On the other hand, the controller collects a prescribed toll from the vehicle if the vehicle is not a violator vehicle.

REFERENCES:
patent: 3924236 (1975-12-01), Earp et al.
patent: 4057803 (1977-11-01), Coleman
patent: 5404144 (1995-04-01), Vlannes
patent: 5440109 (1995-08-01), Hering et al.
patent: 5451758 (1995-09-01), Jesadanont
patent: 5710556 (1998-01-01), Nishimura et al.
European Search Report dated Jul. 30, 1997.
D. Boothroyd, "For Whom The Road Tolls", New Electronics, vol. 28, No. 20, Nov. 28, 1995, pp. 18-20.
Dieter Rittch, et al., Zukuenftige Automatische Gebuehrenerfassung Fuer Den, NTZ Nachrichtentechnische Zeitschrift, vol. 46, No. 4, Mar. 1, 1993, pp. 258-260, 262-265.
Charles H. Small, Credit-Card Sized Memories Small Memories Take On Wider Application, EDN Electrical Design News, vol. 36, No. 13, Jun. 20, 1991, pp. 67, 69-70.

Affiliated with

Also associated with

Rating

Vehicle identification system for electric toll collection syste does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vehicle identification system for electric toll collection syste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle identification system for electric toll collection syste will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2061642