JPH03214292A - Illegal passing preventing device - Google Patents

Abstract

PURPOSE:To improve the reading accuracy of the registered Nos by detecting the registered No. of the rear number plate of a car as well as the registered No. of the front number plate. CONSTITUTION:A camera 5a photographs the registered No. of a number plate fixed at the front side of a car 9, and a camera 5b photographs the registered No. of a number plate fixed at the rear side of the car 9 respectively for executing of the template matching. Then the images of the detected front and rear number plates of the car 9 are outputted to a processor 7. Thus the registered Nos. of both front and rear number plates of the car 9 are detected. So that the registered No. of the undisplaceable rear number plate is detected even through the front number plate is illegally displaced. As a result, the reading accuracy is improved for the registered Nos. of cars.

Description

[Detailed description of the invention] [Industrial field] The present invention is directed to the issuance of toll tickets for toll roads such as expressways.
This invention relates to an unauthorized passage prevention device that prevents unauthorized use of a pass ticket in a system that performs second collection.

[Technology of the Congregation Song Dynasty 1] Heke roads were generally divided into 11 lanes for different vehicles such as regular cars and large cars.
The increasingly expensive toll system is becoming increasingly popular, and especially on multi-section toll roads such as expressways, predetermined tolls are collected for each section of use.

In such a toll collection system, necessary data such as the entrance interchange name, entrance entry date, time, and vehicle registration number are printed (
(or punched, magnetically recorded, etc.), the device operator receives this ticket from the driver at the exit of the interchange, settles the toll based on the data on the ticket, and collects the toll. .

[Problems to be Solved by the Invention] However, in this type of conventional system, the holder of the toll ticket cannot be identified, so the toll tickets are not exchanged with each other at a parking area, etc., and the regular toll fee is not collected. The problem was that it couldn't be done.

Therefore, in order to prevent such fraud, ticket inspections were conducted at parking areas, etc. on the way between inbound changes, but this was not a very efficient method as it caused inconvenience to well-intentioned passersby. .

In addition, a method has been devised in which the registration number of the vehicle is printed by detecting the contents of the license plate fixed to the front of the vehicle when issuing a pass, but the license plate is illegally placed in a position where it is difficult to see. Misdetection may occur due to changing the tag or dirt such as mud, and the reading accuracy is low, making it impossible to issue accurate passes.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and its purpose is to improve the accuracy of reading the registration number of the license plate fixed to the vehicle, and to improve the accuracy of reading the registration number of the license plate fixed to the vehicle.
It is an object of the present invention to provide an illegal passage prevention device capable of performing calculation processing and preventing illegal use of a pass.

[1,000 Steps to Solve the Problems] In order to achieve the above object, the unauthorized traffic prevention device according to the present invention provides an ltI
A toll ticket is issued at the entrance of the toll road based on the detection result by the means, and at the exit of the toll road, the detection result and the contents of the toll ticket issued at the entrance are checked. The feature is that the information is compared to determine whether the fare is to be settled or whether the pass has been used fraudulently.

[Operation] When a vehicle enters or exits a toll road, the information on each license plate fixed to the front and rear of the vehicle is detected, and at the entrance to the toll road, a pass is issued based on the detection results. Ru.

Furthermore, at the exit of the toll road, the detection results are compared with the contents of the toll ticket issued at the entrance to calculate the toll and determine whether the toll ticket is being used illegally.

[Embodiment 1] FIG. 1 is a block diagram showing an embodiment of the unauthorized traffic prevention device according to the present invention.

The unauthorized traffic prevention device according to this embodiment issues and collects passes by detecting the registration number of the license plate attached to a vehicle traveling on 14 roads, such as an expressway, and processes at the entrance. It is composed of a device 1 and an outlet side processing device 2.

The entrance-side processing device 1 is disposed on the entrance side of the interchange, and includes a vehicle leading edge detection sensor 3, a vehicle trailing edge detection sensor 4, a television camera 5, an infrared camera 6, a processing device 7, and a pass ticket issuing device 8. It is composed of

The vehicle leading edge detection sensor 3 detects the front of the vehicle 9 traveling on the road, and outputs this detection signal to the processing device 7. Further, a plurality of vehicle trailing edge detection sensors 4 are arranged at predetermined intervals from the vehicle leading edge detection sensor 3, and detect the trailing edge of the vehicle 9 traveling on the road, and output these detection signals to the processing device 7. ing.

The television camera 5 is equipped with two cameras 5a and 5b, one camera 5a displays the registration number of the license plate fixed to the front side of the vehicle 9, and the other camera 5b displays the registration number on the rear side of the vehicle 9. The registration number of the license plate fixed to the vehicle 9 is displayed and template matching is performed for each, and the image of the license plate of the detected vehicle 9 after liii is output to the processing device 7.

When the television camera 5 captures the image of the license plate, the infrared flash 6 always maintains a constant brightness so as not to be affected by the surrounding brightness during the day and night.

The processing device 7 calculates the length of the vehicle 9 based on each detection signal from the vehicle leading edge detection sensor 3 and the vehicle trailing edge detection sensor 4. In addition, this processing device 7 calculates the weight of the vehicle 9 from a load signal from a load sensor (for example, a load cell, etc.) not shown. The vehicle type is identified from the data. Furthermore, this processing device 7 takes in an image signal from the television camera 5, and processes the image by dividing it into black and white regions. At this time, the license plate fixed to the vehicle 9 indicates the type of vehicle, that is, large vehicle, ordinary vehicle,
The size differs depending on the size of the light vehicle, and the color scheme differs between private and commercial vehicles. 9, the most likely image is imported as data. The vehicle type data, weight data, and license plate registration number data of the vehicle 9 obtained through the processing of the processing device 7 are output to the ticket issuing device 8.

The pass ticket issuing device 8 issues a pass ticket T based on the data from the processing device 7, and the pass ticket T includes information such as the date of entry, time, entrance interchange name, vehicle registration number, vehicle type, and weight. Data is printed (or punched, magnetically recorded, etc.).

The exit side processing device 2 is disposed on the exit side of the interchange, and includes a vehicle leading edge detection sensor 3, a vehicle trailing edge detection sensor 4, a television camera 5, an infrared flash 6, a processing device 7, a fare settlement device IO, and an alarm display device 11. It is configured with.

Note that the vehicle leading edge detection sensor 3, the vehicle trailing edge detection sensor 4,
The configurations of the television camera 5, infrared flash 6, and processing device 7 are the same as the corresponding configurations of the entrance-side processing device 1 described above, and each data obtained by the processing device 7 is sent to the fee settlement device IO. Output.

The fine settlement device 10 compares various data from the processing device 7 with the data on the ticket T received from the driver at the exit, and settles the toll. In addition, this fee settlement device 10
outputs a discrepancy signal to the warning display device l1 when the data in the processing device 7 and the data on the ticket T do not match.

The alarm display device 11 displays an alarm when a discrepancy signal is input from the fare adjustment device 10. The warning display device 11 also displays a warning when the registration number on the license plate cannot be read. In this case, the device operator looks at the registration number of the vehicle 9 and processes the pass T. Further, this operation by the device operator is performed in the same way even when the registration number on the license plate cannot be read at the entrance of the interchange and the pass ticket T is not issued.

Next, the operation of the unauthorized traffic prevention device configured as described above will be explained.

The entrance side processing device 1 detects the position of the vehicle 9 using the vehicle leading edge detection sensor 3 and the vehicle trailing edge detection sensor 4 until the vehicle arrives at the entrance of the interchange where the device operator is located. The registration numbers of the license plates at the front and rear of the vehicle are imaged by the television cameras 5a and 5b, and each detection signal and image signal are output to the processing device 7. The processing device 7 calculates the length of the vehicle 9 from the detection signal and outputs it to the ticket issuing device 8 as vehicle type data. Further, the license plate registration number captured as an image signal is input to the pass ticket issuing device 8 as data. When the vehicle type data and registration number are input from the processing device 7, the ticket issuing device 8 issues a ticket T on which the entry date, time, entrance interchange name, registration number, vehicle type, weight, etc. are printed. . Then, the device operator hands the issued ticket T to the driver of the corresponding vehicle 9 and allows the vehicle to pass through the spot.

On the other hand, when the vehicle 9 with the pass r in hand approaches the exit of the next interchange to exit the toll road, the exit side processing device 2 processes the process until the vehicle 9 arrives at the exit of the interchange where the device handling Akane is located. At the same time, the position of the vehicle 9 is detected by the vehicle leading edge detection sensor 3 and the vehicle trailing edge detection sensor 4, and the registration numbers of the license plates at the front and rear of the vehicle are visualized by the two television cameras 5a and 5b. The signal is output to the processing device 7. The processing device 7 calculates the length of the vehicle 9 from the detection signal and outputs it to the fare settlement device 10 as vehicle type data. Further, the registration number of the license plate, which is captured as an image signal, is input to the fee settlement device 10 as data. Next, when the vehicle 9 reaches the location where the device operator is located, the device operator receives the pass T from the driver and sets it in the toll accumulating device 10.

As a result, the fare adjustment device 10 compares each data printed on the ticket T with the data from the processing device 7, determines whether the ticket is good or bad, and settles the fare. Here, if the data do not match and an abnormality is recognized in the ticket T, a mismatch signal is output to the alarm display device l1 and an alarm is displayed. If the received ticket T is recognized as normal, the device operator collects a toll from the driver and allows the driver to pass through the spot.

Therefore, in the embodiment described above, when detecting the registration number of the license plate, the registration numbers of both the license plates fixedly installed at the front and rear of the vehicle 9 are detected, and unlike the conventional license plate, the registration number of the front license plate is incorrect. Even if the rear license plate is repositioned, the registration number of the rear license plate, which cannot be repositioned, is detected, so the accuracy of reading the registration number can be improved compared to the conventional method. In addition, when paying the fare for the pass T, the detected registration number is compared with the contents of the pass T to determine whether the pass T is being used fraudulently or not, so that accurate rice can be harvested. In addition to processing money settlement, it is possible to prevent fraud due to exchange of passes, etc.

Next, FIG. 2 shows another embodiment of the unauthorized traffic prevention device.

The unauthorized traffic prevention device according to this embodiment has a communication control device 12, 13 and a central processing center 4 in addition to the above-described configuration of the entrance side processing device 1 and the exit side processing device 2.

The communication control device 1213 installed at the entrance/exit of each interchange and the central processing center 14 are connected by a communication line 15, and the central processing center 14 is used as a relay to connect the communication control devices 12.13 to each other. It is configured to allow data communication.

As a result, by transmitting and registering data from each communication control device 12 to 13 to the central processing center 14, the pass ticket T
It is no longer necessary to issue a , which simplifies the process. Further, since the data from each communication control device 12, 1.3 is centrally managed by the central processing center 14, it is possible to control traffic information such as the degree of congestion at each interchange.

By the way, in the embodiment described above, the vehicle trailing edge detection sensor 4 used as a sensor for detecting the position of the vehicle 9 is
We have explained a configuration in which multiple units are arranged in the length direction.
By disposing a plurality of sensors also in the height direction of the vehicle 9, the type of vehicle can be identified and detection accuracy can be improved.

At this time, if a vehicle is loaded, only the registration number of the license plate at the bottom is processed as valid data.

In addition, in the above-mentioned embodiment, a toll ticket T is issued on which various data such as date of entry, time, entrance interchange name, registration number, vehicle type, weight, etc. are printed, but in recent years it has been called a highway card. Prepaid cards with financial information memorized are becoming popular, so if various data of the pass can be written to this card, there will be no need to issue a pass and it will be easier to handle money such as change. It is possible to aim for

[Effects of the Invention] As explained above, the unauthorized traffic prevention device of the present invention not only detects the registration number on the license plate fixed to the front side of the vehicle, but also detects the registration number on the license plate on the rear side of the vehicle. Since it also detects the registration number on the rear license plate, even if the front license plate is illegally relocated like in the past, the accuracy of reading the registration number is improved compared to the previous one. . In addition, even if the pass is exchanged, it is determined whether the pass has been used fraudulently by comparing the detected registration number with the contents of the pass, allowing for accurate processing of paddy payment. It is possible to prevent fraud as well as to prevent fraud.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the unauthorized traffic prevention device according to the present invention, and FIG. 2 is a block diagram showing another embodiment of the unauthorized traffic prevention device according to the present invention. l... Inlet side processing device, 2... Outlet side processing device, 3
... Vehicle leading edge detection sensor, 4... Vehicle trailing edge detection sensor, 5... Television camera, 7... Processing device, 8...
- Passage ticket issuing device, 9... Vehicle, 10... Toll payment device, T... Passage ticket.

Claims (1)

[Claims] A means for detecting information on license plates fixedly installed at the front and rear of the vehicle is provided, and a pass is issued at the entrance of the toll road based on the detection result by the means, and a ticket is issued at the entrance of the toll road based on the detection result at the exit of the toll road. What is claimed is: 1. An unauthorized traffic prevention device that performs toll settlement and determines whether a toll ticket is being used illegally by comparing the contents of the toll ticket with the contents of the toll ticket.