JP2000003494A - Vehicle judging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve vehicle detection accuracy without misdetecting a part such as a side mirror and a crane head for a large vehicle which is projected from a vehicle body to the front as another vehicle. SOLUTION: Antenna controllers 4a, 4b execute radio communication with an on-vehicle machine 2 fitted to a vehicle 1 and a vehicle detection controller 6 detects an entering vehicle. A vehicle judging means 10 judges a vehicle based on information outputted from the controller 6, and after detecting a vehicle by the means 10, a communication data existence judging means 11 judges the existence of communication data. When there is no communication data, the means 11 outputs a no-data signal to a succeeding vehicle judging means 12. The means 12 judges whether a large vehicle exists immediately after the vehicle or not. When there is no communication data corresponding to the detected vehicle and a large vehicle is detected immediately after the vehicle concerned, an illegal vehicle detection means 13 judges that the vehicle concerned is a projected part of the large vehicle and does not judge the existence of an illegal vehicle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle judging device for a wireless toll collection machine.

[0002]

2. Description of the Related Art Conventionally, in a wireless toll machine installed at a tollgate on a toll road, one vehicle is detected one by one to control illegally passing vehicles, and the presence or absence of communication data is determined for each vehicle. I have.

FIG. 3 shows the configuration of a conventional wireless toll machine. In the figure, reference numeral 1 denotes a vehicle, and the vehicle 1 has an in-vehicle device 2 attached to, for example, a windshield. On the other hand, on the tollgate side, antennas 3a and 3b for wirelessly communicating with the on-vehicle device 2, antenna controllers 4a and 4b for controlling these antennas 3a and 3b, and the vehicle 1
, A vehicle detection controller 6 for controlling the vehicle detection sensor 5, a illuminated camera 7 for photographing the vehicle 1, a monitoring camera system 8 for controlling the camera 7, and the like. The antennas 3a and 3b are
The antenna 3a is provided at a predetermined distance, and the antenna 3a is provided on the vehicle approach side.

A recognition signal and a billing signal obtained by wireless communication between the antennas 3a and 3b and the vehicle-mounted device 2 are as follows:
The data is sent to the wireless communication data determination means 9 via the antenna controllers 4a and 4b. The signal detected by the vehicle detection sensor 5 is sent to the vehicle determination unit 10 and the unauthorized vehicle detection unit 13 via the vehicle detection controller 6. The wireless communication data determining means 9 and the vehicle determining means 1
The determination result of 0 is input to the unauthorized vehicle detection means 13.
The unauthorized vehicle detecting means 13 includes the vehicle detecting controller 6, the wireless communication data determining means 9, and the vehicle determining means 10.
Is determined based on the signal from the vehicle and whether the vehicle is a normal vehicle, if the vehicle is determined to be fraudulent, the imaging command is transmitted to the monitoring camera system 8 to capture the image of the vehicle 1, and the processing result The data is transmitted to the communication controller 14 as recording data. When the fraudulent detection is performed by the fraudulent vehicle detection unit 13, the communication controller 14 executes the processing result of the fraudulent vehicle detection unit 13 and the monitoring camera system 8.
Is transmitted to the central computer system (CPU) 15.

[0005] Fig. 3 shows an apparatus configuration for one lane, but a plurality of the lanes are actually mounted on the gantry according to the number of lanes. Here, the basic operation of the system for one lane will be described.

Procedure 1: When the vehicle 1 having the on-vehicle device 2 enters the toll booth, the antenna controller 4a performs wireless communication with the on-vehicle device 2 through the antenna 3a, and transmits the result (recognition signal) to the wireless communication data determination means. 9

Procedure 2: When the vehicle 1 proceeds further, the vehicle detection controller 6 detects the vehicle 1 through the vehicle detection sensor 5 and transmits a vehicle detection signal to the unauthorized vehicle detection means 13.

Procedure 3: When the vehicle 1 further advances, the antenna controller 4b performs wireless communication with the vehicle-mounted device 2 via the antenna 3b, and transmits the result (charge signal) to the wireless communication data determination means 9.

Procedure 4: After the vehicle 1 has passed the vehicle detection sensor 5, the vehicle detection controller 6 detects the vehicle position and the vehicle width, and transmits the result to the vehicle determination means 10.

Step 5: The vehicle judging means 10 judges the vehicle 1 based on the information from the vehicle detecting controller 6 and transmits the same to the unauthorized vehicle detecting means 13.

Step 6: The fraudulent vehicle detecting means 13 determines whether the vehicle is a normal vehicle or a fraudulent vehicle based on the recognition signal in step 1 above, the billing signal in step 3 and the vehicle determination result in step 4, and determines that the vehicle is fraudulent. In this case, a signal is transmitted to the monitoring camera system 8 so as to capture an image of the vehicle 1.

Step 7: The monitoring camera system 8 transmits the captured vehicle image to the communication controller 14.

Step 8: The unauthorized vehicle detecting means 13 transmits the processing result to the communication controller 14 as recording data.

Step 9: The communication controller 14 transmits the recording data having the same contents as in step 8 and the vehicle image data of step 7 to the central computer system 15.

Next, a detection procedure performed by the unauthorized vehicle detection means 13 will be described with reference to a flowchart shown in FIG.

Step S11: fraudulent vehicle detecting means 13
Receives the vehicle detection signal sent from the vehicle detection controller 6, and proceeds to step S12.

Step S12: The vehicle is determined on the basis of the determination result sent from the vehicle determining means 10. If the vehicle is a single vehicle, the process proceeds to step S13. If the vehicle is other than a single vehicle, the process proceeds to step S14.

Step S13: The recognition signal is confirmed. If there is the recognition signal, it is determined that the vehicle is a single vehicle, and the process proceeds to step S15a.
It moves to 15b.

Step S14: The recognition signal is confirmed. If there is the recognition signal, it is determined that the vehicle is a vehicle other than a single vehicle, and step S15 is performed.
The process proceeds to step c, and if there is no recognition signal, the vehicle is determined to be an unauthorized vehicle, and the process proceeds to step S15b.

Step S15: In step S15a, it is determined that the vehicle is a single vehicle, and the process is terminated. In step S15b, it is determined that the vehicle is an unauthorized vehicle, and the process proceeds to step S16.
In 5c, it is determined that the vehicle is a vehicle other than a single vehicle, and the process ends.

Step S16: An image capturing command is transmitted to the monitoring camera system 8 so as to capture an image of the vehicle 1, and the process ends.

[0022]

As described above, the traffic of an unauthorized vehicle can be detected. However, if a large vehicle having a structure in which the vehicle detection controller 6 detects the side mirror separately from the vehicle body passes, the procedure 2
Then, in order to detect the entry of two vehicles, the vehicle detection signals for two vehicles are transmitted to the unauthorized vehicle detection means 13. Next, if it is determined in step 4 that the side mirror is a single vehicle and the vehicle body is a large vehicle, the vehicle detection controller 6 transmits two pieces of information on the single vehicle (side mirror) and the large vehicle to the unauthorized vehicle detection means 13. However, the wireless communication between the on-vehicle device 2 and the antenna 3a and the wireless communication between the on-vehicle device 2 and the antenna 3b performed in the procedure 1 and the procedure 3 include only information on a large vehicle. In the procedure 6, an image of a single vehicle (side mirror) is taken. The signal is transmitted, and finally the vehicle image data of the heavy vehicle is transmitted to the central computer system 15.

As described above, in the conventional vehicle detection method, a portion protruding forward of the vehicle body, such as a side mirror or a crane head of a large vehicle, may be erroneously detected as another vehicle (for example, a single vehicle).

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a portion protruding forward of a vehicle body, such as a side mirror or a crane head of a large vehicle, is not erroneously detected as another vehicle. It is an object to provide a vehicle determination device that can improve vehicle detection accuracy.

[0025]

SUMMARY OF THE INVENTION According to the present invention, a vehicle provided in a tollgate recognizes the vehicle by performing wireless communication between wireless equipment provided in the tollgate and a vehicle-mounted device mounted in the vehicle. In a vehicle determination device in a wireless toll collection machine that detects a vehicle by a detection device, determines a vehicle, and receives a toll, a wireless communication data determination unit that determines wireless communication data with the on-vehicle device by the wireless equipment. A vehicle judging unit for judging a vehicle type based on a detection signal from the vehicle detecting device, and judging the presence or absence of communication data for the vehicle judged by the vehicle judging unit based on a judgment result of the wireless communication data judging unit After determining whether there is no communication data by the communication data presence / absence determination means and the communication data presence / absence determination means, determine whether or not a large vehicle follows immediately after the detected vehicle. A vehicle determination unit; and a fraudulent vehicle detection unit that detects a fraudulent vehicle based on a determination result of the wireless communication data determination unit, a vehicle determination unit, a communication data presence / absence determination unit, and a following vehicle determination unit. The means is characterized in that, when there is no communication data for the detected vehicle and a large vehicle is detected immediately after the vehicle, the vehicle is not judged to be a fraudulent vehicle as being a protrusion of the large vehicle. .

Further, the communication data presence / absence determining means determines presence / absence of communication data when the vehicle determination means determines that the detected vehicle is a single vehicle.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a configuration of a wireless toll machine according to an embodiment of the present invention. In the figure, 1
Is a vehicle, and the vehicle 1 has a vehicle-mounted device 2 attached to, for example, a windshield. On the other hand, on the tollgate side, antennas 3a and 3b for wirelessly communicating with the on-vehicle device 2 and an antenna controller 4 for controlling these antennas 3a and 3b.
a, 4b, a vehicle detection sensor 5 for detecting the vehicle 1, a vehicle detection controller 6 for controlling the vehicle detection sensor 5, an illuminated camera 7 for photographing the vehicle 1, and the camera 7
Is provided. The antennas 3a and 3b are provided at a predetermined distance, and the antenna 3a is provided on the vehicle approach side.

A recognition signal and a billing signal obtained by wireless communication between the antennas 3a and 3b and the vehicle-mounted device 2 are as follows:
The data is sent to the wireless communication data determination means 9 via the antenna controllers 4a and 4b, respectively. The signal detected by the vehicle detection sensor 5 is transmitted to a vehicle detection controller 6.
Is sent to the vehicle determination means 10 and the unauthorized vehicle detection means 13 via The judgment results of the wireless communication data judgment means 9 and the vehicle judgment means 10 are input to the communication data presence / absence judgment means 11 and also to the unauthorized vehicle detection means 13.

The above-mentioned communication data presence / absence judging means 11 is adapted to, when the judgment result of the vehicle judging means 10 is, for example, a single vehicle.
From the determination result by the wireless communication data determination means 9, it is determined whether or not there is communication data for the vehicle, and if there is communication data, a signal of "data present" is sent to the unauthorized vehicle detection means 1.
3 if there is no communication data, and outputs a signal of “no data” to the following vehicle determination means 12. The following-vehicle determining means 12 determines whether or not a large vehicle has passed immediately after the single vehicle based on the determination result of the vehicle determining means 10 when a signal of "no data" is input from the communication data presence / absence determining means 11. , And outputs the determination result to the unauthorized vehicle detection means 13.

The unauthorized vehicle detecting means 13 determines whether the vehicle is a normal vehicle based on the results of determination by the vehicle detecting controller 6, the wireless communication data determining means 9, the vehicle determining means 10, the communication data presence / absence determining means 11, and the following vehicle determining means 12. It is determined whether the vehicle is an unauthorized vehicle. In this case, the unauthorized vehicle detection means 13
Does not judge that a vehicle is a fraudulent vehicle because the vehicle is detected as a protruding portion of a large vehicle when a vehicle is detected, there is no communication data with the vehicle, and a large vehicle is detected immediately after the vehicle. Like that. When determining that the passing vehicle is a fraudulent vehicle, the fraudulent vehicle detecting means 13 transmits an imaging command to the monitoring camera system 8 to capture an image of the vehicle 1 and records a processing result. The data is transmitted to the communication controller 14 as data. When the fraudulent vehicle is detected by the fraudulent vehicle detection unit 13, the communication controller 14 sends the processing result of the fraudulent vehicle detection unit 13 and the monitoring image sent from the surveillance camera system 8 to the central computer system (CPU) 15. Send.

Next, the processing procedure of the above embodiment will be described.

Procedure 1: When the vehicle 1 on which the vehicle-mounted device 2 is mounted enters the toll booth, the antenna controller 4a performs wireless communication with the vehicle-mounted device 2 through the antenna 3a, and transmits the result (recognition signal) to the wireless communication data determination means. 9

Step 2: When the vehicle 1 proceeds further, the vehicle detection controller 6 detects the vehicle 1 through the vehicle detection sensor 5 and transmits a vehicle detection signal to the unauthorized vehicle detection means 13.

Step 3: When the vehicle 1 proceeds further, the antenna controller 4b performs wireless communication with the vehicle-mounted device 2 through the antenna 3b, and transmits the result (charge signal) to the wireless communication data determination means 9.

Step 4: After the vehicle 1 has passed the vehicle detection sensor 5, the vehicle detection controller 6 detects the position and width of the vehicle, and transmits the result to the vehicle determination means 10.

Step 5: The vehicle judging means 10 judges the vehicle 1 based on the information from the vehicle detecting controller 6, and transmits it to the communication data existence judging means 11.

Step 6: The communication data presence / absence determining means 11
When the vehicle judgment result is sent from the vehicle judgment means 10,
The presence / absence of communication data for the vehicle is determined, and if there is no communication data, a signal indicating “no data” is output to the following vehicle determination means 12. The following-vehicle determination means 12 determines that there is no data
Is received, a determination is made as to whether or not a large vehicle is present immediately after the vehicle having no communication data, and the determination result is output to the unauthorized vehicle detection means 13.

Now, for example, if it is assumed that a large vehicle whose side mirror is detected separately from the vehicle body enters the toll booth, the vehicle determining means 10 first determines the side mirror portion as a single vehicle, and the determination result Is sent to the communication data presence / absence determining means 11. At this time, since wireless communication is not performed with respect to the side mirror portion determined to be a single vehicle, the communication data presence / absence determining means 11 determines that there is no data for the single vehicle, and determines the determination result by the following vehicle determining means. 12 is output. When a signal indicating "no data" is sent from the communication data presence / absence determining unit 11, the following vehicle determining unit 12 determines the following vehicle. In this case, a large vehicle follows immediately after the single vehicle. And outputs the result of the determination to the unauthorized vehicle detection means 13.

Step 7: The unauthorized vehicle detecting means 13 determines whether the vehicle is a normal vehicle or an unauthorized vehicle based on the determination results of the wireless communication data determining means 9, the vehicle determining means 10, the communication data existence determining means 11, and the following vehicle determining means 12. Do. In this case, the unauthorized vehicle detection means 13 detects the single vehicle as described above, and if there is no communication data with the vehicle and a large vehicle is detected immediately after the vehicle, the vehicle is detected as a large vehicle. It ignores the detection result as a single vehicle because it is a protruding portion, and determines that it is a normal vehicle, and ends the process. In addition, the unauthorized vehicle detection means 13 transmits a signal to the monitoring camera system 8 so as to capture an image of the vehicle 1 when determining that the vehicle is an unauthorized vehicle.

Step 8: The monitoring camera system 8 transmits the captured vehicle image to the communication controller 14.

Step 9: The unauthorized vehicle detection means 13 transmits the processing result to the communication controller 14 as record data.

Step 10: The communication controller 14 transmits the recording data having the same contents as in step 9 and the vehicle image data of step 8 to the central computer system 15.

Next, the processing operation of the unauthorized vehicle detecting means 13 will be described with reference to the flowchart shown in FIG.

Step S1: The unauthorized vehicle detecting means 13
The vehicle detection signal sent from the vehicle detection controller 6 is received, and the process proceeds to step S2.

Step S2: The vehicle is determined on the basis of the determination result sent from the vehicle determining means 10. If the vehicle is a single vehicle, step S3 is performed. If the vehicle is other than a single vehicle, step S5 is performed.
Move to

Step S3: The recognition signal is confirmed, and if there is a recognition signal, it is determined that the vehicle is a single vehicle, and the flow proceeds to step S6a.

Step S4: The judgment result of the following vehicle judgment means 12 is judged, and if the vehicle immediately after is a large car, step S4 is executed.
6b, and if not a large vehicle, the process proceeds to step S6c.

Step S5: The recognition signal is confirmed, and if there is a recognition signal, it is determined that the vehicle is a vehicle other than a single vehicle, and the flow proceeds to step S6d. If there is no recognition signal, it is determined that the vehicle is an unauthorized vehicle, and the flow proceeds to step S6c.

Step S6: In step S6a, it is determined that the vehicle is a single vehicle, and the process is terminated. In step S6b, the vehicle determined in step S2 is determined to be a projecting portion of a large vehicle, and the process is terminated. In step S6c, It is determined that the vehicle is a fraudulent vehicle, and the process proceeds to step S7. In step S6d, the vehicle is determined to be a vehicle other than a single vehicle, and the process ends.

Step S7: A photographing command is transmitted to the monitoring camera system 8 to capture an image of the vehicle 1, and the process ends.

In the above-described embodiment, the description has been given of the case of a large vehicle in which the side mirrors protrude from the vehicle body. However, for other vehicles, such as a crane head, which has a portion protruding forward from the vehicle body. Can be processed in the same manner as in the above embodiment, and the vehicle can be determined with high accuracy.

[0053]

As described above in detail, according to the present invention, in the vehicle judging device of a wireless toll collection machine, when a vehicle entering a tollgate is detected to judge whether it is a normal vehicle or an unauthorized vehicle, There is no communication data for the detected vehicle,
If a large vehicle is detected immediately after the vehicle, the vehicle is determined to be a protrusion of the large vehicle and is not detected as an unauthorized vehicle. A portion protruding ahead of the vehicle body, such as a head, is not erroneously detected as another vehicle, and the detection accuracy of the entering vehicle can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a wireless toll collection machine according to an embodiment of the present invention.

FIG. 2 is a flowchart for explaining an unauthorized vehicle detection operation in the embodiment.

FIG. 3 is a block diagram showing a configuration of a conventional wireless toll collection machine.

FIG. 4 is a flowchart for explaining an unauthorized vehicle detection operation of the vehicle determination device in FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle 2 In-vehicle device 3a, 3b Antenna 4a, 4b Antenna controller 5 Vehicle detection sensor 6 Vehicle detection controller 7 Illuminated camera 8 Surveillance camera system 9 Wireless communication data determination means 10 Vehicle determination means 11 Communication data presence / absence determination means 12 Subsequent vehicle determination Means 13 Unauthorized vehicle detection means 14 Communication controller 15 Central computer system

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masayoshi Konishi 1-1-1 Wadazakicho, Hyogo-ku, Kobe-shi, Hyogo F-term in Mitsubishi Heavy Industries, Ltd. Kobe Shipyard (reference) 5H180 AA01 BB04 CC04 EE10

Claims (2)

[Claims] A vehicle is recognized by performing wireless communication between wireless equipment provided at a tollgate and an on-vehicle device attached to the vehicle, and the vehicle is detected by a vehicle detection device provided at the tollgate. A wireless communication data determining means for determining wireless communication data between the wireless equipment and an in-vehicle device, and a detection signal by the vehicle detecting device. A vehicle determination unit that determines a vehicle type based on the communication data presence / absence determination unit that determines presence / absence of communication data based on a determination result of the wireless communication data determination unit for the vehicle determined by the vehicle determination unit; When the communication data presence / absence determination unit determines that there is no communication data, a subsequent vehicle determination unit that determines whether a large vehicle follows immediately after the detected vehicle; A communication data determination unit, a vehicle determination unit, a communication data presence / absence determination unit, and a fraudulent vehicle detection unit configured to detect a fraudulent vehicle based on a determination result of the following vehicle determination unit, wherein the fraudulent vehicle detection unit communicates with the detected vehicle. If there is no data and a large vehicle is detected immediately after the vehicle, the vehicle is determined to be a protrusion of the large vehicle and is not determined to be an unauthorized vehicle. 2. The vehicle determination device according to claim 1, wherein said communication data presence / absence determination means determines the presence / absence of communication data when the detected vehicle is determined to be a single vehicle by the vehicle determination means.