JP2004070798A - Vehicle type determination system for highway tool section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle type determination system for highway tool section capable of easily performing a vehicle type determination at a low cost and preventing the illicit use of an onboard device in an ETC system. <P>SOLUTION: This vehicle type determination system for highway tool section has a tool collecting facility (1), a vehicle detecting means (2), and the onboard device (3). The tool collecting facility is provided in the toll station area of a toll road, and the vehicle detecting means is attached to the toll collecting facility. The onboard device is set on a vehicle (4), and vehicle information related to the vehicle is recorded therein. The toll collecting facility and the onboard device have communication means not shown, respectively, and the onboard device responses to the toll collecting facility by radio through the communication means. The toll collecting facility further has an arithmetic means (7) to collect the vehicle information received from the onboard device by radio with the detection information of the vehicle detecting means. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle discrimination system applicable to a toll road toll collection system that collects a toll without stopping at a tollgate on a toll road.
[0002]
[Prior art]
Conventionally, the type of vehicle required to set a toll on a toll road is to read information on license plate, number of axes, tread width, vehicle length, vehicle height, etc. using a large number of sensors, and to process this large amount of information. Was determined by
[0003]
In recent years, a toll road toll collection system (ETC system) that collects tolls without stopping at toll gates on toll roads has been introduced, based on vehicle information recorded in advance in an on-board unit constituting the ETC system. Is adopted. That is, this is a method in which the toll collection facility acquires necessary information from the on-vehicle device installed in the vehicle using wireless communication, and determines the type of vehicle required for setting the toll.
[0004]
[Problems to be solved by the invention]
However, the conventional vehicle type discriminating method using a large number of sensors requires a large number of installed devices and a large number of judgment conditions in arithmetic processing, and thus has a problem that the configuration of the vehicle type discriminating device becomes complicated and the cost increases. Was.
[0005]
In addition, according to the method of recording vehicle information in the on-board unit in the ETC system, the on-board unit in which information on the type of vehicle (small car, etc.) for which the charge setting is low is recorded on the vehicle (such as a large car) for which the charge setting is high There is a risk that the vehicle-mounted device may be used illegally, for example, by installing the vehicle-mounted device or exchanging the vehicle-mounted device while traveling on a toll road.
[0006]
Therefore, an object of the present invention is to provide a toll road toll classification vehicle type discrimination system that can easily and inexpensively discriminate a vehicle type and prevent unauthorized use of an on-board unit in an ETC system.
[0007]
[Means for Solving the Problems]
The toll road toll classification vehicle type discrimination system according to the present invention has a toll collection facility, a vehicle detection means, and an on-board unit, and the toll collection facility is provided in a tollgate area of the toll road, and the vehicle detection means includes the toll collection facility. Attached to the equipment, the on-vehicle device is installed in the vehicle and responds wirelessly to the toll collection device, and vehicle information about the vehicle is recorded, and the toll collection device is wirelessly transmitted from the on-vehicle device. The received vehicle information is collated with detection information of the vehicle detection means.
[0008]
According to this toll road toll classification vehicle type discrimination system, by checking the vehicle information recorded in the on-board unit with the detection information of the vehicle detecting means, it is confirmed whether the on-board unit is correctly installed, and the illegal on-board unit is identified. Use can be prevented. Also, since the detection information of the vehicle detection means is used for collation of the vehicle information of the on-board unit, if all the information necessary for the fee setting is recorded in the on-board unit, the type of detection information is necessary for verification. By reducing the number to only those that are not necessary, it is possible to simplify the arithmetic processing for determining the vehicle and the structure of the vehicle detection means. Therefore, the vehicle type can be easily and inexpensively determined.
[0009]
The vehicle detecting means includes a license plate reading facility and a vehicle axis number measuring facility. The vehicle information includes license plate information and vehicle type information, and the license plate information is read by the license plate reading facility and the vehicle type. The information may be collated with the read information and the vehicle type discrimination information derived from the measurement information of the vehicle axis number measuring equipment.
In this case, it is determined whether or not the vehicle-mounted device is correctly installed in the vehicle where the vehicle-mounted device should be originally installed by comparing the information on the vehicle-mounted device with the read information on the license plate, and the information on the vehicle-mounted device and the read information on the vehicle type and the measurement are measured. The vehicle type can be determined based on the determination information derived from the information. That is, it is possible to determine the vehicle type using only two types of detection information, and prevent unauthorized use of the vehicle-mounted device in the ETC system. In addition, since it is impossible to completely determine the vehicle type only with information on the license plate and the information on the number of vehicle axes, if the vehicle type is determined only from the detection information using the vehicle detection means (a sensor or the like), Information (tread width, vehicle length, vehicle height, etc.) must also be detected. However, by using the vehicle type information recorded in the vehicle-mounted device, when the vehicle type cannot be determined from the detection information, the vehicle type can be determined based on the vehicle type information of the vehicle-mounted device. Therefore, by using both the vehicle information recorded in the on-vehicle device and the detection information of the vehicle detection means, it is possible to reduce the types of necessary detection information.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show specific examples of the toll road toll category vehicle type discrimination system according to the present invention. FIG. 1 is a block diagram schematically showing the system. 2 and 3 are flow charts of a vehicle type discriminating procedure based on the detection information when the vehicle detecting means detects only the license plate information and the number of axis information. FIG. 3 shows the processing after B in FIG.
[0011]
This toll road toll classification vehicle type discrimination system includes a toll collection facility 1, a vehicle detection means 2, and an on-vehicle device 3. A toll collection facility 1 is provided in a tollgate area of a toll road, and a vehicle detecting means 2 is provided in the toll collection facility 1. The vehicle-mounted device 3 is installed in the vehicle 4 and records vehicle information on the vehicle 4. Each of the toll collection facility 1 and the on-vehicle unit 3 includes a communication unit (not shown), and the on-vehicle unit 3 wirelessly responds to the toll collection unit 1 via these communication units. . Further, the toll collection facility 1 is provided with a calculation means 7, and collates vehicle information wirelessly received from the vehicle-mounted device 3 with detection information of the vehicle detection means 2.
[0012]
According to the toll road toll classification vehicle type discrimination system, the vehicle information recorded in the vehicle-mounted device 3 is compared with the detection information of the vehicle detection means 2 to confirm whether the vehicle-mounted device 3 is correctly installed, and Unauthorized use of the device 3 can be prevented. Further, since the detection information of the vehicle detection means 2 is used for collation of the vehicle information of the vehicle-mounted device 3, if all the information necessary for the fee setting is recorded in the vehicle-mounted device 3, the type of the detection information can be changed. By limiting the number to only those necessary for the collation and reducing the number, it is possible to simplify the arithmetic processing for determining the vehicle 4 and the structure of the vehicle detection means 2. Therefore, the vehicle type can be easily and inexpensively determined.
[0013]
The vehicle detection means 2 includes a license plate reading facility 5 and a vehicle axis number measuring facility 6. The vehicle information includes license plate information and vehicle type information. The license plate information is read information of the license plate reading equipment 5, and the vehicle type information is read information of the license plate reading equipment 5 and measurement of the vehicle axis number measuring equipment 6. The information is collated with the vehicle type identification information derived from the information.
In this way, it is determined whether the vehicle-mounted device 3 is correctly installed in the vehicle where the vehicle-mounted device 3 is to be originally installed by comparing the information of the vehicle-mounted device 3 about the license plate with the read information, and the information of the vehicle-mounted device 3 and the reading of the vehicle type are read. The vehicle type can be determined based on the information and the determination information derived from the measurement information. That is, it is possible to determine the vehicle type using only two types of detection information, and to prevent unauthorized use of the vehicle-mounted device 3 in the ETC system.
[0014]
Vehicle type discrimination based on two types of detection information (license plate information and vehicle axis number measurement information) is performed according to the procedure shown in FIGS. Hereinafter, the procedure will be described.
[0015]
First, in the first step S1, it is determined whether or not the license plate reading equipment 5 can read a number. Here, when it is determined that reading is possible, in the next step S2, a plate size is determined based on the read license plate information, and thereafter, a vehicle type number corresponding to each plate size is determined (S3 to S6, S20). To S21, S24 to S29, S41, and S91). Then, when the result is obtained only by the determination of the vehicle type number, when the determination of the number of axes is necessary directly in addition to the determination of the vehicle type number, the determination of the measurement information of the vehicle axis number measuring equipment 6 (S22). , S23, S31, S42, S43, S61 to S62, S81, S92, S93), the result of the vehicle type determination can be obtained.
Here, if the result obtained by the determination is A1, a normal vehicle (vehicle type 1), A2 is a large vehicle (vehicle type 2), A3 is an oversized vehicle (vehicle type 3), and A4 is a medium-sized vehicle (vehicle type 3). In the case of vehicle type 4) and A5, it is determined that the vehicle is determined to be a mini vehicle (vehicle type 5), in the case of A8 it is determined to be a special purpose vehicle (vehicle type 8), and in the case of X it is determined that the vehicle type is unknown (vehicle type X).
[0016]
If it is determined in step S1 that reading is impossible, the measurement information of the vehicle axis number measuring equipment 6 is determined in the next step S11. If the number of axes is 5 or more, the result A3 is obtained. Is determined to be an oversized vehicle, and if the number of axes is four or less, the result X is obtained and the vehicle type is determined to be unknown.
[0017]
Since the plate size recognition rate is higher than the vehicle type number recognition rate, in this procedure, the plate size determination is performed as a priority process to determine whether or not the license plate information can be read. Also, since it is assumed that the determination of the number of axes is often delayed after the determination of the plate size, the determination of the number of axes is positioned lower than the determination of the plate size.
[0018]
According to this procedure, the determination of the vehicle type may be determined to be unknown. That is, it is impossible to completely determine the vehicle type only by the information on the license plate and the information on the number of vehicle axles. When the vehicle type is determined only from the detection information using the vehicle detection means 2, other information (tread width) is used. , Vehicle length and height) must also be detected. However, by using the vehicle type information recorded in the vehicle-mounted device 3, when the vehicle type cannot be determined from the detection information, that is, when the result X is obtained, it is possible to determine the vehicle type based on the vehicle type information of the vehicle-mounted device 3. It becomes. Therefore, by using the vehicle information recorded in the vehicle-mounted device 3 and the detection information of the vehicle detection means 2 together, it is possible to reduce the types of necessary detection information.
[0019]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the toll road classification vehicle type discrimination system which concerns on this invention, it can confirm whether the vehicle-mounted device is correctly installed, and can prevent illegal use of a vehicle-mounted device.
In addition, the type of the detection information is limited to only those necessary for the verification and the number is reduced, and the arithmetic processing for determining the vehicle and the structure of the vehicle detection means are simplified, so that the vehicle type can be easily and inexpensively determined. Becomes possible.
[0020]
According to the second aspect, it is possible to perform vehicle type discrimination using only two types of detection information, thereby preventing unauthorized use of the vehicle-mounted device in the ETC system.
[Brief description of the drawings]
FIG. 1 is a block diagram schematically showing a toll road toll classification vehicle type discrimination system according to the present invention.
FIG. 2 is a flowchart showing a portion including a process start of a vehicle type discriminating procedure based on the detected information when the vehicle detecting means detects only license plate information and axis number information.
FIG. 3 is a flowchart showing processing after B in FIG. 2;
[Explanation of symbols]
1 Toll collection equipment 2 Vehicle detection means 3 On-board unit 4 Vehicle 5 License plate reading equipment 6 Vehicle axis number measurement equipment

Claims (2)

It has toll collection equipment (1), vehicle detection means (2), and on-vehicle device (3),
The toll collection facility (1) is provided in the tollgate area of the toll road,
The vehicle detection means (2) is provided along with the toll collection facility (1),
The on-vehicle device (3) is installed in the vehicle (4) and responds wirelessly to the toll collection facility (1), and records vehicle information on the vehicle (4);
A vehicle type classification system for toll road tolls, wherein the vehicle information received by the toll collection facility (1) wirelessly from the vehicle-mounted device (3) is collated with the detection information of the vehicle detection means (2). The vehicle detecting means (2) includes a license plate reading facility (5) and a vehicle axis number measuring facility (6), and the vehicle information includes license plate information and vehicle type information, and the license plate information is stored in the license plate information. The toll of claim 1, wherein the information is collated with the read information of the reading equipment, and the vehicle type information is collated with the read information and the vehicle type identification information derived from the measurement information of the vehicle axle number measuring equipment. Road toll classification vehicle type discrimination system.

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