JPH05197856A - Illicit act detector for toll road fare collection system - Google Patents

Abstract

PURPOSE:To detect the illicit use of the non-contact card, etc., in a toll road fare collection system which can automatically identify the cars. CONSTITUTION:A non-contact card 17 provided to a car stores the car type information in addition to the ID information. A road machine 16 reads the ID information and the car type information out of the memory in a non-contact way and charges the fare based on the ID information. The car separators 11 and 11a decide the types of passing cars with the car length detecting phototubes 13 and 13a, a number plate reader 14, etc. Then the decided car type information is compared with the car type information read out by the machine 16. When no coincidence is obtained between both information, the illicit use of the card 17 is decided.

Description

Detailed Description of the Invention

[0001]

The present invention relates to an AVI (Auto) system for toll roads.
MATCHING VEHICLE IDENTIFICATION: A fraud detecting device in a toll collection system using automatic vehicle identification.

[0002]

2. Description of the Related Art A conventional toll collection system for toll roads that is generally used will be described. For example, when it comes to so-called multi-section toll roads where the fare is determined according to the section in which the vehicle has traveled, the entrance toll gate (gate) of the toll road
A toll ticket issuing machine is installed in, and the toll gate number, the vehicle type information, the entry time to the toll gate, etc. are issued by a staff member's operation and handed to the user (vehicle occupant). On the other hand, a ticket confirmation machine is installed at the exit toll gate (gate) of a toll road, and a staff member receives the ticket issued by the user at the entrance toll gate and inserts it into the ticket confirmation machine. Automatically read the information written on the ticket and compare the exit toll gate number and reading time with the information written on the ticket, namely the entrance toll gate number, vehicle type information and entrance toll gate entry time, to calculate the fare And display it on the charge display. The clerk collects cash from the user and issues a receipt to the user.

In the above-mentioned conventional system, from the viewpoint of the road manager, a toll collection staff must be arranged at each of the entrance toll gate and the exit toll gate of the toll road toll gate, and all the toll road traffic is allowed. There is a problem that the burden on the staff is heavy because the staff has to collect the charge for the vehicle. On the other hand, from the user's point of view, it always takes a long time to stop at the entrance toll gate and the exit toll gate, so it takes a long time, traffic congestion is likely to occur, cash is required and it is troublesome, during rainy seasons and in winter. There is a problem that it is inconvenient because it is necessary to open the window of the vehicle to receive and pass the pass ticket and cash even when heating or cooling in summer.

Therefore, recently, AVI (Automatic Vehicle)
Identification: Automatic vehicle identification) is planned to be a toll collection system that requires no staff, no suspension, no passing of tickets or cash. In the charge collection system by AVI, an in-vehicle device in which unique identification information, that is, ID (Identification) information is recorded is installed in a vehicle, or a driver brings a contactless card in which ID information is recorded in the vehicle. Vehicle-side devices such as these vehicle-mounted devices and non-contact cards can read recorded contents from the outside in a non-contact manner by wireless communication or the like, and are hereinafter referred to as non-contact cards and the like. On the other hand, a roadside machine is installed near the toll road toll gate, and when the vehicle passes through the toll gate, the ID information is read out from the contactless card etc. in a contactless manner, and which toll gate the vehicle passed and when The ground-side computer obtains the information and charges the toll. Therefore, the vehicle can pass through the toll gate without giving or receiving a ticket or cash and temporarily stopping. The actual payment of the toll may be a prepaid method, a postpay method, or a deposit method, depending on the contract between the user such as a contactless card and the road administrator, and the person corresponding to the ID information pays.

[0005]

In the above-mentioned toll collection system using AVI, only ID information is used. Therefore, any vehicle having a contactless card or the like can use this system, which prevents unauthorized use. It may occur. For example, a contactless card or the like is exchanged between vehicles in an up lane and a down lane that are using a toll road to cheat tolls cheaply. Alternatively, another person uses a contactless card that is lost or stolen.

An object of the present invention is to provide a device capable of detecting unauthorized use of a contactless card or the like in a toll road toll collection system using AVI.

[0007]

The configuration of the fraud detecting device of the toll road toll collection system of the present invention is installed in a vehicle in which ID information is recorded in a memory and the contact contents can be read out from the outside without contact. It is equipped with a vehicle-side device and a roadside device that is installed near the gate of the toll road and reads the recorded content from the vehicle-side device in a contactless manner, and charges the toll using the ID information read by the roadside device. In the toll road toll collection system to be performed, the vehicle-side device has, in addition to ID information, vehicle type information of a vehicle in which the device is installed, recorded in a memory, and further installed near a toll road gate,
It is characterized by further comprising: a vehicle type discriminating device for discriminating a vehicle type of a passing vehicle; and comparing means for comparing and collating the vehicle type information from the vehicle type discriminating device and the vehicle type information from a roadside device and judging as illegal in the case of disagreement. ..

[0008]

If the vehicle type information read by the roadside device from the vehicle-side device (contactless card, etc.) in a non-contact manner does not match the vehicle type information determined by the vehicle type identifying device for the vehicle, the contactless card, etc. is replaced. Judging from the fact that it is being used illegally. That is, in a toll road toll collection system that collects tolls using a contactless card or the like, vehicle type information of the vehicle is entered in the memory of a vehicle-side device such as a contactless card in addition to the ID code. On the other hand, a vehicle type identification device is installed near the gate of the toll road to identify the vehicle type of the passing vehicle when entering the gate, and this vehicle type information and the vehicle type information written in the non-contact card memory are compared by means of comparison. Comparison and collation are performed, and when they do not match, it is determined that the card is illegally used, and replacement of the contactless card or the like is detected.

[0009]

EXAMPLES Examples of the present invention will be described below. First, the configuration of the embodiment will be described.

FIG. 1 is a block diagram of the system of this embodiment. In FIG. 1, reference numerals 11 and 11a denote vehicle separators for separating and detecting passing vehicles. 12 and 12a are also vehicle separators that separate and detect passing vehicles. 2 vehicle separators 11, 11a, 12, 12a
The reason why they are in parallel with each other is to discriminate the forward / backward movement of a passing vehicle. Reference numerals 13 and 13a denote vehicle length detection photocells, which detect the vehicle length of a passing vehicle. Reference numeral 14 is a license plate reading device, which comprises a vehicle photographing camera and an image processing device. 1
Reference numeral 5 denotes an antenna, which is an antenna for transmitting information to the non-contact card 17 and receiving information from the non-contact card 17. 16 is a roadside machine, and a contactless card 17
It has a function of controlling information exchange with, a signal reception from the vehicle type identification device, and a signal transmission to the television camera 36 of the monitoring control device as described later.

FIG. 2 is a system configuration diagram of the vehicle type identification device 31. The vehicle type identification device 31 includes vehicle separators 11 and 11a,
12, 12a, vehicle length detection phototubes 13, 13a, license plate reading device 14, and vehicle type discrimination control unit 18. In FIG. 2, reference numerals 21-1 to 21-n denote photocell projectors 22-1 to 22 of the vehicle separators 11 and 11a.
Similarly, -n is a photocell light receiver of the vehicle separators 11 and 11a, 23-1 to 23-n is a phototube projector of the vehicle separators 12 and 12a, and 24-1 to 24-n are also vehicle separators 12 and 12a. It is a phototube receiver. 25-1,25
2, 26-1, 26-2 are vehicle separators 11, 1 respectively
It is the photocell at the bottom of 1a, 12, 12a, and is the axle measurement phototube 230. The photocell 230 is installed at a position where the tire portion of the vehicle is detected, and has a function of measuring the number of axes of the vehicle. 25-1 and 26-1 are installed in the vehicle separators 11 and 11a, respectively.
-2 are installed in the vehicle separators 12 and 12a, respectively. Reference numerals 27 and 28 denote light emitting and receiving portions of photocells of the vehicle length detectors 13 and 13a, respectively.

Reference numeral 18 is a vehicle type discrimination control section. Reference numeral 29 is an OR gate circuit, which takes an OR logic of the signal output of the phototube receivers of the vehicle separators 11 and 11a, and detects if any of the phototube receivers 22-1 to 22-n is present. The output shall be sent. Reference numeral 210 denotes an OR gate circuit, which takes an OR logic of the signal output of the photocell receivers of the vehicle separators 12 and 12a.
If there is any output of 24-n, the detection output is sent. Reference numeral 211 denotes an AND gate circuit, which is one of the axle detection phototubes 230 and includes phototube receivers 26-1 and 26-.
It is a circuit for taking the AND signal of the two light receiving signals, and the gate signal of the AND gate circuit 211 is output when both the output detection signals of the phototube light receivers 26-1 and 26-2 are output. Reference numeral 212 denotes a forward / backward movement determination circuit, which determines whether the passing vehicle has moved forward or backward by judging the order of the output signals of the OR gate circuits 29, 210.
The output signal is sent only when the vehicle moves forward. Reference numeral 214 is a reset circuit, which is an OR gate circuit 21.
The reset signal is sent to the forward / backward movement determination circuit 212 and the axis number measurement circuit 215 at the trailing edge of the detection output signal from No. 3. An AND gate circuit 216 sends out the vehicle passage signal a only when both the forward / backward movement determination circuit 212 and the OR gate circuit 213 detect outputs. Two
Reference numeral 17 denotes an AND gate circuit, which is an AND gate circuit 21.
The vehicle length detection signal is output only when the vehicle passage signal a from 6 is output and the detection output from the photoelectric tube 28 for vehicle length detection is not output. A vehicle length detection signal output circuit 218 sends out a vehicle length detection signal c to the vehicle detection interface 227 of the license plate reader 13 when the vehicle length detection output signal is received from the AND gate circuit 217.

Next, the license plate reader 14 will be described. 219 is an image capture interface circuit, 2
Reference numeral 20 is an original image memory circuit, and 221 is a working original image memory circuit (for working). The host CPU 224 operates to move the image information in the original image memory 220 to the working memory circuit 221. It is a memory circuit. Two
23 is an image memory interface, which is a host CP
It is assumed that the control signal is sent to the image memory (original image) 220 and the original image memory (for work) 221 by the action of U224. A host CPU 224 is a CPU circuit for controlling the operation of a vehicle type discrimination control program. 225
Is a memory circuit, which is a circuit that stores a control program for vehicle type discrimination. Reference numeral 226 is a camera interface circuit, which is a circuit for transmitting the synchronization signal f to the camera 19. 227 is a vehicle detection interface circuit,
It is assumed that a vehicle passage signal a, an axis number signal b, and a vehicle length detection signal c are received from the vehicle type discrimination control unit 18. A bus interface circuit 228 includes a vehicle type identification interface circuit 229, a camera interface circuit 226, a vehicle detection interface circuit 227, and a host CPU 22.
This is an interface circuit for exchanging control signals with the four. Vehicle type identification interface circuit 229
Sends the discrimination vehicle type signal d to the comparator 37. Reference numeral 19 is a television camera of the license plate reading device 14.

FIG. 3 shows an example of the configuration of this system. Reference numeral 31 is a vehicle type discriminating device, which is shown in FIGS.
11, 11a, 12, 12a, 13, 13a, 14,
It has a functional part indicated by 18. In FIG. 3, reference numeral 32 denotes a contactless card processing system, which is composed of a control unit described later, and the on-road unit 16 and the antenna 15 shown in FIG. A toll collection machine 33 is a machine for collecting cash for vehicles that do not bring a contactless card.
A transmission control device 34 has a function of exchanging data between the host computer and the toll collection device. Three
Reference numeral 5 denotes a start detection device, which detects that the vehicle has started from the gate and returns the system to the original state when the start is completed. Surveillance TV camera (CCT for surveillance control equipment)
V) 36 photographs the front shape of the vehicle when the contactless card information cannot be read, or when the contactless card is exchanged and the vehicle type identification information and the vehicle type information of the contactless card are different. Reference numeral 37 is a comparator, which is a vehicle type identification device 31.
And the vehicle type information written in the non-contact card 17 detected by the non-contact card processing system 32 are compared and collated, and if they do not match, the television camera 36 captures the front shape of the vehicle. The control signal for this purpose is transmitted.

Next, a road unit (control unit) 1
The configuration of 6 will be described with reference to FIG. In FIG. 4, reference numeral 41 denotes a controller, which controls the entire roadside system. 42 is an oscillator, and the controller 41
The modulation circuit 43 is for modulating the signal from
To modulate. An amplifier circuit 44 amplifies the modulated signal. Reference numeral 15a is a transmission antenna for transmitting a roadside device signal to the contactless card. Reference numeral 46 is an oscillator for reducing the frequency of the signal sent from the contactless card 17 by the mixer section 47 described below. Reference numeral 47 is a mixer section for frequency-converting (reducing) the signal sent from the receiving antenna 15b. The reception antenna 15b receives a signal from the contactless card 17. An amplifier 49 is for amplifying the signal received by the receiving antenna 15b. Reference numeral 410 is a detection circuit that detects the signal whose frequency has been converted by the mixer unit 47. Reference numeral 411 is a demodulation circuit, which demodulates the signal detected by the detection circuit 410. The controller unit 41 can send signals to the comparator 37 and the fee collection machine 33. The antennas 15a and 15b are shown as the antenna 15 in FIG.

FIG. 5 is a block diagram of the contactless card 17. In FIG. 5, 51 is a non-contact card body. A CPU circuit 52 is for controlling the entire non-contact card 17. Reference numeral 53 is a battery, which is a battery for driving the controller of the non-contact card 17.
A keyboard unit 54 is used by the user of the non-contact card 17 to input a personal identification number or the like at the time of use. 55
Is a memory section, and is a section for inputting vehicle type information and the like, which are the main points of interest of the present patent application, to this section. A display unit 56 is a unit for displaying contactless card information. 57
Is an antenna, which sends a signal from the non-contact card 17 to the road machine 16 and receives a signal from the road machine 16. Reference numeral 58 denotes a switching circuit, which sends a signal from the antenna 57 to the detection circuit 510 when a signal is received from the roadside machine 16 and sends a signal from the contactless card 17 to the roadside machine 16 from the modulation circuit 59. The signal is given to the antenna 57. Reference numeral 59 is a modulation circuit for modulating the roadside machine signal from the CPU 52. A detection circuit 510 detects a signal from the on-road device 16. 51
Reference numeral 1 is a demodulation circuit, which demodulates the signal from the detection circuit 510. 512 is a microwave detection circuit,
Contactless card 1 that detects microwaves from the roadside device 16
Set 7 to the operating state.

Table 1 shows an example of the classification vehicle type classification stored in the non-contact card 17.

[0018]

[Table 1]

Next, the operation of this embodiment, especially the vehicle type discrimination device 3
Vehicle type information of the vehicle identified in 1 and the contactless card 1
The comparison and comparison with the vehicle type information from 7 will be described.
That is, taking FIG. 3 as an example, the discrimination information of the vehicle of the vehicle type discriminating apparatus 31 and the vehicle type information of the non-contact card from the non-contact card processing system 32 must be compared by the comparator 37, and they must match. For example, taking a picture of the vehicle with the surveillance TV camera 36 will be specifically described with reference to the conventional block diagrams.

First, in FIG. 1, the vehicle is a vehicle separator 1.
When the installation positions 1, 11a, 12, 12a are reached, the photocell receivers 22-1 to 22-n, 24-1 to 24-n shown in FIG.
The forward / backward movement of the vehicle is discriminated by the forward / rearward movement discriminating circuit 212 according to the order of the OR signal of the output of the OR gate 29, 210, and when the vehicle moves forward, the forward signal of the vehicle is output as the output of the circuit 212. To be done. At the same time, the output signals of the vehicle separators 11, 11a, 12, 12a, that is, the OR signals, pass through the OR gate 213, and the forward signal from the forward / backward movement determination circuit 212 and this signal pass through the AND gate circuit 216. The passage signal a indicates the vehicle detection interface 227 and the AND gate circuit 217.
Sent to.

If the passage signal a of the vehicle passes through the vehicle detection interface 227, the bus interface 228.
, The host CPU 224 sends the image signal e from the camera 19 via the image capturing interface 219,
An image is captured in the image memory (original image) 220. By the operation of the host CPU 224, the size of the van bar plate of the passing vehicle and the vehicle type number written on the license plate are identified by the action of the host CPU 224 in this image according to the vehicle type identification program written in advance.

Next, when the vehicle advances, the photocells 25-1, 25-2, 26-1, 26-2 for detecting the wheels of the vehicle act to act as the phototube receivers 26-1, 26- when the wheels pass.
Two signals are output from both. Therefore, a signal is output from the AND gate circuit 211 when the vehicle wheels pass.
Therefore, the axis number measurement circuit 215 measures the number of axes. When the vehicle finishes passing the positions of the vehicle separators 11, 11a, 12, 12a, the reset circuit 214 causes the forward / backward movement determination circuit 2
12, and the reset signal is sent to the axis number measuring circuit 215. At this time, the axis number signal b from the axis number measuring circuit 215
Is sent to the vehicle detection interface 227. When the vehicle passes the vehicle length detection phototubes 13 and 13a, the detection output of the phototube 28 and the vehicle separators 11 and 11a are detected.
The AND gate circuit 217 judges the signal outputs of both the passing signals of a, 12, 12a. That is, the vehicle separator 1
When there is a passing signal of 1, 11a, 12, 12a and an output signal of the photocell 28 of the vehicle length detection photocell 13, 13a, this vehicle is a vehicle of 3200 mm or more (Vehicle type 1 (light vehicle in Table 1) Other than the above)), the AND gate circuit 217 outputs a detection output signal to the signal output circuit 218, and this circuit does not output the vehicle length detection signal c to the vehicle detection interface 227. In addition, the vehicle separator 1
If there is no passing signal of 1, 11a, 12, 12a and there is a phototube output signal of the vehicle length detection phototube 15, the vehicle is 32
It is determined that the vehicle is 00 mm or less (Vehicle type 1 (light vehicle, etc. in Table 1)), a detection output signal is sent from the AND gate circuit 217 to the signal output circuit 218, and the vehicle length detection signal c is sent from this circuit to the vehicle detection interface. 227.
The timing when the vehicle length is determined is the time when the reset signal is sent from the reset circuit 214.

The license plate size determined by the information obtained from the image signal captured by the camera 19 and the vehicle type information written in the license plate and the axis number signal b sent from the vehicle type determination control unit 18, The vehicle type signal c determines the vehicle type of the passing vehicle in accordance with the vehicle type determination logic written in the memory circuit in advance, and the vehicle type determination interface 229 outputs the determined vehicle type signal d to the comparator 37 shown in FIGS. 2 and 3. Sent out.

While the vehicle type discrimination device 31 discriminates the vehicle type of the vehicle, the vehicle type information written in the non-contact card 17 from the non-contact card 17 brought by the user of the vehicle is the non-contact card processing system. It is sent to the comparator 37 via 32.

First, a passing vehicle reaches the detection area of the antenna 15 connected to the on-road unit 16. Then, the antenna 57 shown in FIG. 5 passes through the switching circuit 58, the microwave detecting circuit 512 detects the microwave from the roadside machine 16, and sends an operation start-up signal to the CPU circuit 52.
From the roadside device 16, a transmission request signal is continuously sent to the contactless card 17. That is, this signal is sent from the controller 41 of FIG. 4 to the modulation circuit 43, this signal is amplified by the amplifier circuit 44, and is transmitted from the transmitting antenna 15a.
Reaching the antenna 57 of the contactless card 17, the switching circuit 58
Then, it is determined that the signal is a received signal, and the signal is detected by the detection circuit 510, demodulated by the demodulation circuit 511, and reaches the CPU circuit 52. Then, the ID (Identification) code of the contactless card 17 and the vehicle type information stored in the memory circuit 55 are modulated by the modulation circuit 59 by the operation of the CPU circuit 52, switched to the transmission mode by the switching circuit 58, and the antenna 57. Is transmitted to the receiving antenna 15b of the on-road unit 16. This signal is frequency-converted by the mixer circuit 47, detected by the detection circuit 410, demodulated by the demodulation circuit 411, and finally the controller 41 reads the ID code of the contactless card 17 and the vehicle type information. Comparator 3
7 is sent. With the above, the contactless card 17 and the road device 16
And detailed behavior with.

In the comparator 37, the vehicle type information of the contactless card 17 from the contactless card processing system 32 and the vehicle type information of the vehicle from the vehicle type discriminating device 31 are compared and collated.
If they match, it is determined that the contactless card 17 is normal. If they do not match, contactless card 1
No. 7 is judged not to be normal, and a shooting command signal is sent to the television camera 36 to shoot the front surface of the vehicle.

[0027]

According to the present invention, since the vehicle type can be discriminated, it is possible to eliminate the inconvenience that the contactless card is replaced and the toll road fee is illegal. In this specification, the information recorded on the contactless card is expressed as vehicle type information, but this information is not limited to the vehicle type information in Table 1 and includes vehicle specifications and license plate information. Further, it becomes possible to detect a failure of the vehicle type identification device.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a block diagram showing a circuit configuration of a vehicle type identification device.

FIG. 3 is a block diagram showing a system of this embodiment.

FIG. 4 is a block diagram showing a circuit configuration of a road machine.

FIG. 5 is a block diagram showing a circuit configuration of a contactless card.

[Explanation of symbols]

11, 11a, 12, 12a Vehicle separator 13 Vehicle length detection phototube 14 License plate reader 15 Antenna 15a Transmission antenna 15b Reception antenna 16 Roadside machine 17 Non-contact card 18 Vehicle type discrimination control unit 19 Cameras 21-1 to 21-n, 23-1 to 23-n Phototube Emitters 22-1 to 22-n, 24-1 to 24-n Phototube Receivers 25-1, 25-2, 26-1, 26-2 Phototubes 27 and 28 Phototube Emitters and Receivers 29, 210, 213 OR gate circuit 211, 216, 217 AND gate circuit 212 Forward / backward movement discrimination circuit 214 Reset circuit 215 Axis number measurement circuit 218 Vehicle length detection signal output circuit 219 Image capture interface 220, 221 Memory circuit 224 Host CPU 225 Memory Circuit 226 Camera interface circuit 227 Both detection interface circuit 228 Bus interface circuit 229 Vehicle type identification interface circuit 230 Axle measurement phototube 31 Vehicle type identification control unit 32 Non-contact card processing system 33 Toll collection machine 34 Transmission control device 35 Start detection device 36 TV camera for monitoring 37 Comparator 41 Controller 42 oscillator 43 modulation circuit 44 amplifier 46 oscillator 47 mixer section 49 amplifier 410 detection circuit 411 demodulation circuit 51 non-contact card body 52 CPU circuit 53 battery 54 keyboard section 55 memory section 56 display section 57 antenna 58 switching circuit 59 modulation circuit 510 detection circuit 511 Demodulation circuit 512 Microwave detection circuit

Claims (1)

[Claims] 1. A vehicle-side device installed in a vehicle in which ID information is recorded in a memory and non-contact recording contents can be read from the outside, and a device installed in the vicinity of a toll road gate from the vehicle-side device. In a toll road toll collection system, comprising: a roadside device for reading out recorded contents in a contactless manner, and charging a toll using the ID information read out by the roadside device, wherein the vehicle-side device is The vehicle type information of the vehicle in which the device is installed is recorded in the memory, and the vehicle type identification device that is installed near the gate of the toll road and determines the vehicle type of the passing vehicle, and the vehicle type information from the vehicle type identification device. A fraud detecting device for a toll road toll collection system, comprising: a comparing means for comparing and collating with vehicle type information from a road machine and determining fraud if they do not match.