Method and device for registering vehicles in a road toll facility

• US 6,109,525 A
• Filed: 03/20/1998
• Issued: 08/29/2000
• Est. Priority Date: 05/28/1993
• Status: Expired due to Term

• Current Assignee: Kapsch TrafficCom AB (Datax Handelsgmbh)
• Original Assignee: Saab-Scania Combitech Akitiebolag
• Inventors: Olsson, Lars, Blomqvist, Kenneth, Hjelmare, Anders
• Primary Examiner(s): LEE, MICHAEL GUNYOUNG
• Application Number:
  US09/045,021
• Time in Patent Office: 893 Days
• Field of Search: 235/375, 235/380, 235/382, 235/384, 340/928, 340/933, 340/937, 340/941
• US Class Current: 235/384
• CPC Class Codes: G01C 11/02 Picture taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
• CPC Class Codes: G07B 15/063 using wireless information transmission between the vehicle and a fixed station identification of vehicles G08G
• CPC Class Codes: G08G 1/015 with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles
• CPC Class Codes: G08G 1/0175 by photographing vehicles, e.g. when violating traffic rules
• CPC Class Codes: G08G 1/04 using optical or ultrasonic detectors

Abstract

A system and method of registering vehicles in a road toll facility is provided with radio transmitter and receiver equipment (7) for microwaves arranged to communicate with vehicle units (12) provided in the vehicles (4), preferably including a transponder. On command from the road toll facility, an identity is obtained from the in-vehicle unit and a toll debiting operation is performed. When a vehicle (4) enters the toll facility, it is detected via the activation of the toll facility radio equipment (7) if the vehicle (4) is provided with a vehicle unit (12) and if it has performed a correct payment operation. Vehicles for which such operations cannot take place are exposed to a successive position determination via video cameras (9) through an image processing in which the vehicle in question is tracked between a predetermined recording site and the location where the payment status of the vehicle has been established via the radio equipment. In the recording site, the number plate of the vehicle is recorded for identification via a video camera (10) which identification, in conjunction with data such as time and place, is used for search and for post-debiting of the toll.

Claims

1. A method for registration vehicles in a road toll facility, the method comprising the steps of:

providing at least a toll facility arranged with a passage through which the vehicles are intended to pass for registration in order to perform toll fee collecting operations,

providing the toll facility with a radio communication means configured to communicate with in-vehicle radio communication equipment,

providing first processor means connected to the toll facility and configured the process toll collecting operations in communication with said in-vehicle radio equipment,

providing vehicles with said in-vehicle radio communication equipment, and

providing vehicles having said in-vehicle radio communication equipment with second processor means configured to be in communication with the radio communicating means of the toll facility, process data relating to the toll collecting operation to be transmitted by said in-vehicle radio equipment to the radio communication means of the toll facility,

providing the toll facility with means configured to record identity characteristics as the number plates of at least some of the toll passing vehicles in a recording site of the toll facility,

whereby in an activating location of the toll facility the radio communication equipment of the toll facility and the in-vehicle radio communication equipment are activated to perform an initial operation in order to register, in the first processor means, the state of the vehicle and the in-vehicle radio communication equipment including the vehicle provided with the in-vehicle radio communication equipment and the second processor functioning for communication with said toll facility or that the vehicle has no such functioning equipment,

characterized in that each of the vehicles is tracked on a path through the passage of the toll facility between an activating location and a recording site in order to correlate the result of the initial operation with the recorded identifier characteristic, by registering the path between the two positions and thereby the position of the vehicle at a recording site in the recording instant, thereby

providing the toll facility with first tracking means in the form of at least one video camera configured to record the path of the vehicles between the activation location and the recording site and connected to the image processor configured to produce data representing said path, and

providing the toll facility with second tracking means in the form of at least one radio position detection means connected to the radio communication means and configured to register the position of the respective vehicle at least in the activation location at the instant of the initial operation and to produce data representation and position, so that said correlation can be made by comparing the data representing the result of the initial operation the vehicle position at the instant of the initial operation and the path of the respective vehicle between the recording site and the activation location thereby making it possible to secure the identity of vehicles for which a correct toll collecting operation has yet been performed.

2. The method according to claim 1, wherein the at least one radio position detecting means of the toll facility is configured to produce date relating to the successive position of the vehicles along at least a part of the path between the activating location and the recording site, said data being compared to path data for the path of the same vehicle at a substantially same instant obtained by means of the video tracking system.

3. The method according to claim 2, wherein the path data relating to the successive positions of the path of the vehicle and obtained by means of the video tracking means in the image processing is associated with a symbol following the image of the vehicle in the tracking operation and utilized and in the data processing for correlating the position obtained by means of the radio position detection means and the identity recording of the same vehicle.

4. The method according to claim 1, wherein the toll facility radio position detection means is configured to process the detection and communication with the in-vehicle radio communication equipment, whereby the lack of a functioning of the in-vehicle radio communication equipment and thereby lack of position detection data in the correlating processing in comparison with the videotracking data is utilized as an indication that the respective vehicle has to be recorded as being in a vehicle class which has not performed a correct toll collecting operation.

5. The method according to claim 1, wherein the toll facility is arranged for free flow traffic through the same.

6. The method according to claim 1, wherein the processor means of the toll facility is configured to trigger said recording of the identity characteristic of the respective vehicle at a time calculated on base of data from the video tracking means representing said vehicle path and the current speed of the vehicle so that the time of the recording is synchronized to the moment in which the vehicle is in the viewing field of the recording cameras.

7. A method for registration of collecting toll fees in a road toll facility which is comprising:

a radio communication means configured to communicate with vehicles provided with on-board radio communication means,

a radio vehicle position detection means,

a video tracking means and image processing means provided to produce data representing the successive positions in at least a part of a path of the vehicle passing through the road toll facility, and

a recording means in a recording site of the road toll facility provided to send the identity characteristic of at least some of the passing vehicles,

the method comprising the steps of

(a) detecting, by means of the radio communication means of the road toll facility, when approaching vehicle reach an activation location,

(b) registering by radio communication at least one state of the vehicle present in the activation location, the state being at least that the vehicle is provided with communication equipment or has no functional communication equipment,

(c) registrating by means of the radio vehicle position detection means data representing the position of the vehicle in the activation location at the moment of said registrating of vehicle state step (b),

(d) tracking, by means of the video tracking, means producing successive data representing successive positions of the vehicle during passage between the activation location and the recording site,

(e) activating, by means of said successive data produced in the video tracking step (d) and representing a current position and speed of the vehicle using the recording means to obtain a record of the identity characteristic of the vehicle at a moment in which the position of the vehicle is appropriate for obtaining the record,

(f) registrating the position of the vehicle in the recording site at the moment of activating of the recording means,

(g) processing the position data from the radio position detecting means and from the video tracking means,

(h) correlating the state of the vehicle with the record of the identity characteristic of the same vehicle by connecting the position at a first moment of the registrating with the position at a second moment of recording by means of video tracking during the period between first and second moments,

so that the vehicle, which has the no functional communication equipment can be correctly identified.

8. A method according to claim 7, wherein the activating of the record means is effected after that the vehicle has been registrated in the activation location.

9. A method according to claim 7, wherein the registration in the activation location is effected after that the vehicle has been recorded in the recording site.

13. The device according to claim 9, wherein the radio vehicle position detection means is provided to perform the detection operation in communication with the transponder of the vehicle.

10. A device for registration of vehicles in a road toll facility arranged with a passage through which the vehicles are intended to pass for registration in order to perform a toll fee collecting operation, the device in the road toll facility comprising,

a radio communication means configured to communicate with in-vehicle radio communication equipment,

processor means configured to process toll collecting operations in communication with said in-vehicle radio equipments, the processor means being provided to activate the radio communication means in communication with the in-vehicle radio communication equipments in an activation location of the toll facility, to register a state of the vehicle including at least that the vehicle is provided with the radio communications equipment for communication with said toll facility communication means or that the vehicle has no functioning in-vehicle radio communication equipment,

recording means configured to record in a recording site of the toll facility, and identity characteristics as the number plates of at least some of the toll passing vehicles,

characterized in that the device further comprises

videotracking means including at least one video camera and an image processor means connected thereto and provided to produce path data representing the path of the vehicle in the road toll facility at least between the activating location and the recording site, and

radio vehicle position detection means provided to produce position data representing the position of the vehicle at least in the activation location at the time of the activation of said registration for the same vehicle,

wherein the processor means of the road toll facility being provided to correlate the position obtained by means of the radio position detection means and relating to the position of the vehicle in the activation location at the time of the activation of the said registration with the path data representing the path of the respective vehicle and thereby the position in the recording site at the time of the recording, so that the registration result is correlated to the relevant recording of the same vehicle'"'"'s identity characteristic.

11. The device according to claim 10, wherein the radio position detection means of the road toll facility is provided to process the detection and communication with the in-vehicle radio communication equipment, whereby the processor means is provided to indicate by the processing of the data obtained from the video tracking means tracking the vehicle lacking said in-vehicle radio communication equipment and thereby not connected to any radio position detection data, the identity recording of the vehicle which has not performed a correct toll collecting operation.

12. The device according to claim 10, wherein the in-vehicle radio communication equipment includes a transporter.

14. The device according to claim 10, wherein the radio vehicle position detection means comprises at least one unit including at least one transmitter antenna and at least two receiver antennae, and a processor connected to the receiver antenna and provided to calculate the position by means of a value of the phase difference between signals from different receiving antennae after a frequency carrying signal from the transmitter antenna has been retransmitted by the transponder.

15. A system for registering vehicles in a road toll facility, said road toll facility including a radio transmitter and receiver equipment configured to communicate with vehicle units arranged in each vehicle such that on receipt of a command from the radio transmitter of said road toll facility each vehicle unit communicates adequate data for performing a debiting operation regarding a toll, said radio transmitter and receiver equipment further including computer equipment configured to separate out vehicles for which a correct debiting operation has been performed by means of each vehicle unit, from vehicles for which a correct debiting operation has not been performed, the system comprising:

(a) means for detecting a vehicle unit passing through said road toll facility;

(b) at least one video camera for registering an initial position and displacement of each vehicle traveling along a path between an activating location and a recording site of said road toll facility, and for determining successive positions of a vehicle passing through the toll facility;

(c) image processing equipment connected to each video camera and arranged to track vehicles passing through said road toll facility between an entry position and any point in the toll facility in which said radio transmitter and receiver equipment, including the computer equipment, is arranged to identify each vehicle for which a correct debiting operation has been performed, said image processing equipment configured to collect and produce registered image data;

(d) means for recording a number plate or identity characteristic of the vehicle; and

(e) means for storing recordings of an identity characteristic of the vehicle for which a correct debiting operation has not been performed, said means for storing configured not to perform the storing of recordings of vehicles for which a correct debiting operation has been indicated as performed.

16. A method for registering vehicles in a road toll facility, the method comprising the steps of:

(a) providing at least a toll facility having a passage through which vehicles pass and are registered using toll fee collecting operations;

(b) providing the toll facility with communication means for communicating with and detecting an in-vehicle communication equipment;

(c) providing the toll facility with first processor means whose communication with said in-vehicle communication equipment triggers processing of toll collecting operations;

(d) providing a vehicle with said in-vehicle communication equipment;

(e) providing said in-vehicle communication equipment with second processor means for communicating with said communication means in processing toll collecting operations data transmitted by said in-vehicle communication equipment to said communication means of said toll facility;

(f) providing the toll facility with video recording means for recording at least one identity characteristic of at least one vehicle passing through a recording site of said toll facility;

(g) providing the toll facility with first tracking means for registering an initial position and displacement of each vehicle traveling along a path between an activating location and said recording site, and with an image processor means for collecting and producing registered image data;

(h) registering, in the first processor means and as an initial operation, displacement of each vehicle and each in-vehicle communication equipment through the toll facility, said registering occurring in said activating location of said toll facility when said communication means of the toll facility and the in-vehicle communication equipment are activated to perform said initial operation;

(i) correlating a result of said initial operation with a recorded vehicular identity characteristic by both tracking, between said activating location and said recording site, a path of each vehicle passing through the toll facility, and by registering, at said activating location and at said recording site, a position of each vehicle traveling along said path while said vehicle passes through the toll facility;

(j) providing the toll facility with at least one second tracking means for both registering a position of a vehicle in said activating location at an instant of said initial operation, and for producing registered image data; and

(k) further correlating said result of said initial operation with a recorded vehicular identity characteristic by comparing data representing vehicle position at an instant of said initial operation with data representing said path a vehicle traveled between said recording site and said activating location, said further correlating producing image data representing an identity of each vehicle passing through the toll facility for which a toll collection operation is performed.

17. The method according to claim 16, further comprising the method steps of producing, via each second tracking means, both position data and path data, respectively, relating to each successive position of a vehicle along a portion of said path, between said activating location and said recording site, and comparing said position data of a vehicle to said path data for the same vehicle at a substantially same instant.

18. The method according to claim 17, further comprising the steps of associating path data, relating to a portion of a path of the vehicle and obtained using the video recording means in image processing, with a symbol representing registered image data of said vehicle, and using all associated, symbolized data in data processing for correlating vehicular identity and position.

19. The method claim according to claim 16, further comprising the steps of configuring said second tracking means to process detection of and communication with said in-vehicle communication equipment, and treating absent position data, produced by communication between said second tracking means and each non-functioning in-vehicle communication equipment, as a condition for triggering operation of said video recording means for recording an identity characteristic of a vehicle containing said non-functioning in-vehicle communication equipment.

20. The method claims according claim 16, further comprising the step of arranging the toll facility as a gantry whose elongated, spaced horizontal bars extend perpendicular to a direction of vehicular traffic for free flow traffic therethrough.

21. The method according to claim 16, further comprising the step of configuring the first processor means of the toll facility to trigger said recording of an identity characteristic of a vehicle by said video recording means when a vehicle, not equipped with a functioning transponder or lacking a transponder, enters a recording site of said toll facility, so that at an instant said first tracking means registers a contour image of said vehicle, said video recording means is activated to capture said identity characteristic of said vehicle as said vehicle enters a recording site of said toll facility.

22. The method according to claim 16, further comprising the step of permanently registering a recording of each vehicle for which correct payment operation is not performed.