WO2017022263A1 - Vehicle management system and vehicle management method - Google Patents

Abstract

This vehicle management system (100) is provided with: a first communication device (11) and a second communication device (12); and a travel state determination unit (22). The first communication device (11) and the second communication device (12) transmit, to specific vehicles (30) each having an on-vehicle device (31) mounted thereto, request signals (A1) for requesting information related to the specific vehicles (30), and receive reply signals (A2) which are transmitted from the on-vehicle devices (31), and which include information related to the specific vehicles (30). The travel state determination unit (22) counts the number of specific vehicles (30) entering a tunnel (40), on the basis of the reply signals (A2) received by the first communication device (11) and the second communication device (12) which are disposed at at least the entrance side of the tunnel (40).

Description

Vehicle management system and vehicle management method

The present invention relates to a vehicle management system and a vehicle management method.

Conventionally, a system for monitoring the inside of a tunnel using a camera or the like has been proposed. Such a system is used for monitoring traffic conditions and traffic accidents.
For example, in Patent Document 1, the traffic volume is measured by displaying an image captured by a camera that captures the inside of a tunnel. And the drive of the fan for ventilation is controlled based on this traffic volume.

However, with the conventional technology, for example, it has been difficult to accurately count the number of specific vehicles that are transporting and transporting dangerous goods entering the tunnel.
That is, when the number of specific vehicles in the tunnel is measured using the system disclosed in Patent Document 1, it is necessary to recognize the specific vehicle by analyzing an image obtained by imaging the traveling vehicle. However, in image analysis, the type of vehicle is specified by size and shape, so the type of object being transported and transported (for example, earth and sand, dangerous materials), and whether it was actually transported could not be accurately identified. .

JP 2009-138466 A JP 2009-244502 A JP 2014-191763 A JP 2002-216288 A

An object of the present invention is to provide a vehicle management system and a vehicle management method capable of accurately counting the number of specific vehicles entering a predetermined area such as a tunnel.
The vehicle management system according to the first invention includes a communication device and a counting unit. The communication device transmits a request signal for requesting a reply to the specific vehicle on which the on-vehicle device is mounted, and receives a reply signal including information on the specific vehicle transmitted from the on-vehicle device. The counting unit counts the number of specific vehicles entering the predetermined area based on a reply signal received by a communication device arranged at least on the entrance side of the predetermined area.

As described above, since the number of specific vehicles entering the predetermined area can be counted based on the return signal from the vehicle-mounted device, the number of specific vehicles can be grasped more accurately than judging only from the image.
That is, since the information regarding the vehicle is also included in the reply signal, it is possible to easily distinguish vehicles such as a dangerous material loaded vehicle, a specific vehicle, and a large vehicle that are difficult to discriminate from the image alone as in the past.

Also, by including information on whether or not the dangerous goods loaded vehicle is actually transporting dangerous goods in the information about the vehicle, the number of vehicles that actually loaded the dangerous goods will enter the specified area accurately. it can.
For example, when a disaster occurs in a given area, it is possible to know how many vehicles are approaching and give advance information such as the type of dangerous goods loaded in the rescue that enters the given area. be able to.

In addition, since the vehicle-mounted device is activated by receiving a request signal and returns a reply signal, it is not always necessary to activate or always transmit a signal, and power consumption in the vehicle can be reduced.
A vehicle management system according to a second aspect of the present invention is the vehicle management system according to the first aspect of the present invention, and a communication device is provided for each lane. The communicator transmits a request signal inside the corresponding lane.

Thus, by arranging a communication device for each lane, it is possible to accurately grasp the number of specific vehicles entering the predetermined area for each lane.
A vehicle management system according to a third invention is a vehicle management system according to the first invention, and includes a storage unit and a display unit. The storage unit stores information related to a specific vehicle entering the predetermined area. The display unit displays the number of counted specific vehicles.

By displaying on the display unit in this manner, the number of specific vehicles entering the predetermined area can be grasped at a monitoring center or the like that monitors the traffic state of the predetermined area.
Moreover, since the information on the specific vehicle entering the predetermined area is stored, the information on the approaching vehicle can be confirmed.
As the display unit, a single liquid crystal display, a plasma display, an organic EL display, a PC (Personal Computer) display screen, or the like can be considered.

A vehicle management system according to a fourth aspect of the present invention is the vehicle management system according to the first aspect of the present invention, wherein the communication device is also arranged on the exit side of the predetermined area. The counting unit counts the number of specific vehicles that have exited from the predetermined area based on the return signal received by the communication device on the exit side of the predetermined area, and determines the predetermined number based on the number of specific vehicles that have exited and the number of specific vehicles that enter. Find the number of specific vehicles in the area.

As a result, the number of specific vehicles passing in the predetermined area can be accurately grasped. For this reason, accurate information can be communicated to a fire brigade or the like when a disaster occurs in a predetermined area.
A vehicle management system according to a fifth aspect of the present invention is the vehicle management system according to the first aspect of the present invention, further comprising an imaging unit and a vehicle type determination unit. The imaging unit captures an image of a vehicle passing through an area where a request signal is transmitted. A vehicle type discrimination | determination part determines whether the vehicle to pass is a vehicle type of a specific vehicle based on the imaged image. The communication device transmits a request signal when it is determined that the passing vehicle is the type of the specific vehicle.

Thereby, since it is only necessary to transmit the request signal to the vehicle recognized as the vehicle type of the specific vehicle by the imaging unit, it is not necessary for the communication device to always transmit the request signal.
A vehicle management system according to a sixth aspect of the present invention is the vehicle management system according to the fifth aspect of the present invention, further comprising a storage unit. The storage unit stores an image of the specific vehicle entering the predetermined area and information related to the specific vehicle.

Thereby, the image of the specific vehicle entering the predetermined area can also be confirmed.
The vehicle management system according to a seventh aspect of the present invention further includes a violation detection unit. The violation detection unit detects a lane change prohibition violation of a passing vehicle based on the captured image. When the violation detection unit detects that a lane change prohibition violation has been performed, the communication device transmits information on the lane change prohibition violation to the on-vehicle device as a violation signal. Information on the lane change prohibition violation is stored in the vehicle-mounted device.

Thereby, a lane change prohibition violation can be detected when a lane change is prohibited at the entrance of a predetermined area. It is also possible to make the vehicle driver or owner recognize the traffic violation. Furthermore, since it is memorize | stored in onboard equipment, it is easy to charge violation money (foul money).
The vehicle management system according to an eighth aspect of the present invention is the vehicle management system according to the second aspect of the present invention, wherein the communication device is also arranged for each lane on the exit side of the predetermined area. The vehicle management system further includes a violation detection unit. The violation detection unit detects a violation of lane change prohibition when the return signal of the same vehicle is received in different lanes at the communication devices on the entrance side and the exit side. When the violation detection unit detects a lane change prohibition violation, the communication device transmits information on the lane change prohibition violation as a violation signal to the vehicle-mounted device. Information on the lane change prohibition violation is stored in the vehicle-mounted device.

Thereby, a lane change prohibition violation can be detected when a lane change is prohibited within a predetermined area. It is also possible to make the vehicle driver or owner recognize the traffic violation. Furthermore, since it is memorize | stored in onboard equipment, it is easy to charge a foul.
A vehicle management system according to a ninth aspect of the present invention is the vehicle management system according to any one of the first to eighth aspects, wherein the specific vehicle includes at least one of a dangerous goods loaded vehicle, a special vehicle, and a large vehicle. .

As a result, the number of dangerous goods loaded vehicles, special vehicles, and large vehicles entering the predetermined area can be measured.
A vehicle management system according to a tenth invention is the vehicle management system according to any one of the first to ninth inventions, wherein the predetermined area is a tunnel.
Thereby, the number of specific vehicles entering the tunnel can be accurately counted.

The vehicle management method according to the eleventh invention includes a transmission step, a reception step, and a counting step. The transmission step transmits a request signal for requesting information on the specific vehicle to the specific vehicle on which the vehicle-mounted device is mounted on the entrance side of the predetermined area. The reception step receives a return signal including information on the specific vehicle transmitted from the vehicle-mounted device. The counting step counts the number of specific vehicles that enter the predetermined area based on the return signal.

As described above, since the number of specific vehicles entering the predetermined area can be counted based on the response signal to the signal from the vehicle-mounted device, the number of specific vehicles can be grasped more accurately than judging only from the image.
(The invention's effect)
According to the vehicle management system and the vehicle management method according to the present invention, the number of specific vehicles can be accurately counted.

The block diagram which shows the structure of the vehicle management system in Embodiment 1 concerning this invention. (A), (b) The figure which shows the example of the vehicle of FIG. The figure which shows the example of installation of the 1st communication apparatus and 2nd communication apparatus of the transmission / reception part of FIG. The top view which shows the communication area of the 1st communication apparatus of FIG. 3, and a 2nd communication apparatus. The flowchart which shows operation | movement of the vehicle management system of FIG. The block diagram which shows the structure of the vehicle management system in Embodiment 2 concerning this invention. The figure which shows the example of installation of the 1st camera of FIG. 6, and a 2nd camera. The figure which shows an example of the image image | photographed by the imaging part of FIG. The flowchart which shows operation | movement of the vehicle management system of FIG. The figure for demonstrating the operation | movement which a vehicle approachs into the tunnel managed by the vehicle management system of FIG. The figure which shows the modification of installation of the 1st communication apparatus of the vehicle management system of FIG. 6, a 2nd communication apparatus, a 1st camera, and a 2nd camera. The figure which shows the modification of installation of the 1st communication apparatus of the vehicle management system of FIG. 6, a 2nd communication apparatus, a 1st camera, and a 2nd camera. The figure which shows the modification of installation of the 1st communication apparatus of the vehicle management system of FIG. 6, a 2nd communication apparatus, a 1st camera, and a 2nd camera. The block diagram which shows the structure of the vehicle management system in Embodiment 3 concerning this invention. The figure which shows the example of installation of the 1st communication apparatus of FIG. 14, and a 2nd communication apparatus. The flowchart which shows operation | movement of the vehicle management system of FIG. The block diagram which shows the structure of the vehicle management system in Embodiment 4 concerning this invention. The figure for demonstrating the detection of the lane change prohibition violation by the vehicle management system of FIG. The flowchart which shows operation | movement of the vehicle management system of FIG. The block diagram which shows the structure of the vehicle management system in Embodiment 5 concerning this invention. The flowchart which shows operation | movement of the vehicle management system of FIG. The block diagram which shows the structure of the modification of embodiment concerning this invention. The figure for demonstrating the hardware constitutions of embodiment concerning this invention.

A vehicle management system according to an embodiment of the present invention will be described with reference to the drawings.
(Embodiment 1)
The vehicle management system 100 according to the first embodiment of the present invention counts the number of specific vehicles entering the tunnel, for example.
<Configuration>
FIG. 1 is a block diagram showing a configuration of a vehicle management system 100 according to the present embodiment.

As shown in FIG. 1, the vehicle management system 100 includes a transmission / reception unit 10 and a traveling state monitoring device 20 that monitors the traveling state of the vehicle.
The transmission / reception unit 10 transmits and receives signals to and from the vehicle-mounted device 31 mounted on the specific vehicle 30. The traveling state monitoring device 20 monitors the traveling state of the specific vehicle 30 based on information from the transmission / reception unit 10.

Here, the specific vehicle 30 is a vehicle on which the vehicle-mounted device 31 is mounted. For example, the specific vehicle 30 includes a special vehicle, a dangerous material loaded vehicle, a large vehicle, and the like. Since such vehicles have a great social impact when a traffic accident occurs, it may be considered that the vehicle-mounted device 31 is required.
A special vehicle is a vehicle with a special vehicle structure or a special vehicle that transports cargo that exceeds the general limit values of width, length, height and total weight, bridges, elevated A vehicle that exceeds the maximum weight or height limit on a road or tunnel. Specific examples of the special vehicle include a self-propelled construction machine such as a truck crane and a trailer-coupled vehicle.

Dangerous goods loaded vehicles are vehicles loaded with dangerous goods as defined in the dangerous goods ship transport or storage regulations in Japan and the UN Dangerous Goods Transport Recommendations, for example. Representative examples of dangerous materials include kerosene and transit. In addition, when special vehicles, vehicles with dangerous goods, large sizes, and the like are determined by country, they may be determined according to the agreement.

In Japan, for example, a large automobile refers to a four-wheeled vehicle having a total vehicle weight of 11,000 kg or more, a maximum loading capacity of 6500 kg or more, or a passenger capacity of 30 or more.
Moreover, the mounting of the vehicle-mounted device 31 is considered to be obligated by the country or the like for the specific vehicle 30. The in-vehicle device 31 stores information about the vehicle and has a communication function. The information related to the vehicle includes vehicle ID information, information related to what is being transported / transferred, vehicle information (type, size, shape, etc.) and the like. The information about the vehicle may further include information such as the presence / absence of a traffic application, an application number, the applied transportation / transfer route, and the like. Here, the vehicle ID information may be information that can identify the vehicle, and may be a unique number assigned to the vehicle such as a vehicle number, or a unique number assigned to the vehicle-mounted device. There may be.

FIGS. 2A and 2B are diagrams showing examples of the specific vehicle 30. FIG. FIG. 2A shows a truck as an example of the specific vehicle 30. In the specific vehicle 30, on-vehicle devices 31 attached to various positions P1 to P4 are shown. The vehicle-mounted device 31 may be attached to a position (a ceiling position P1 of the driver's seat, a rear position P2) that is visible from the outside of the vehicle. Moreover, you may attach to the side position P4 in a driver's seat so that a driver | operator can visually recognize not only from the exterior. Furthermore, it may be attached at a position P3 in the vehicle body that cannot be seen from inside and outside the vehicle.

FIG. 2 (b) shows a tank lorry as an example of the specific vehicle 30. FIG. 2B also shows a state where the vehicle-mounted device 31 is attached to various positions P5 to P8 of the tank lorry that is the specific vehicle 30. 2B, similarly to FIG. 2A, the vehicle-mounted device 31 may be attached to a position (a ceiling position P5 of the driver's seat, a rear position P6) that is visible from the outside of the vehicle. Moreover, you may attach to the side position P8 in a driver's seat so that a driver | operator can visually recognize not only from the vehicle outside. Furthermore, it may be attached to a position P7 in the vehicle body that cannot be visually recognized from inside and outside the vehicle.

In FIGS. 2A and 2B, a plurality of vehicle-mounted devices 31 are shown in order to indicate the mounting position of the vehicle-mounted device 31, but it is only necessary to provide one. Moreover, the antenna for transmitting and receiving signals may be provided integrally in the vehicle-mounted device 31 or may be provided at a position away from the outside.
As will be described in detail later, the transmission / reception unit 10 is provided at the entrance of the tunnel to communicate with the specific vehicle 30 on which the vehicle-mounted device 31 is mounted. The storage unit 23, the display unit 24, and the like are installed in a monitoring center that monitors the tunnel.

(Transceiver 10)
The transmission / reception unit 10 includes a first communication device 11 and a second communication device 12. FIG. 3 is a diagram illustrating an example of installation of the first communication device 11 and the second communication device 12. In FIG. 3, two lanes traveling in the same direction are shown. A portal-shaped support member 41 is provided at the entrance of the tunnel 40. The first communication device 11 and the second communication device 12 are disposed on the upper side 41a of the support member 41 and are supported above the lane. The first communication device 11 is disposed above one first lane R1 of the two lanes. The second communication device 12 is disposed above the other second lane R2 of the two lanes. That is, a communication device is provided for each lane.

FIG. 4 is a top view for explaining the communication areas of the first communication device 11 and the second communication device 12. As shown in FIG. 4, the first communicator 11 can communicate with the communication area 11a inside the lane R1, and always sends a request signal A1 toward the communication area 11a. The second communicator 12 can communicate with the communication area 12a inside the lane R2, and always sends a request signal A1 toward the communication area 12a. Here, the request signal A1 is a signal that requests the specific vehicle 30 on which the vehicle-mounted device 31 is mounted to transmit information on the specific vehicle 30. Further, the inside of the lane is an area between one line drawn on the road and one vehicle. The line includes a white solid line, a white broken line, a yellow solid line, and the like, and may vary depending on the country or region.

Thus, the 1st communication apparatus 11 and the 2nd communication apparatus 12 are arrange | positioned corresponding to 1st lane R1 and 2nd lane R2. Accordingly, a request signal can be transmitted to the specific vehicle 30 that travels in each of the first lane R1 and the second lane R2 and enters the tunnel 40.
Moreover, the 1st communication apparatus 11 receives the reply signal A2 (refer FIG. 1) transmitted from the onboard equipment 31 of the specific vehicle 30 which passes the communication area 11a. The second communication device 12 receives the return signal A2 (see FIG. 1) transmitted from the vehicle-mounted device 31 of the specific vehicle 30 that passes through the communication area 12a. Here, the reply signal A2 includes information regarding the specific vehicle 30 on which the vehicle-mounted device 31 is mounted.

That is, information such as the type of dangerous goods loaded on the specific vehicle 30 can be obtained by a reply signal A2 from the vehicle-mounted device 31 in response to the request signal A1 that is always transmitted by the transceiver 10.
The transmission / reception unit 10 transmits the received reply signal A2 and time information when the reply signal A2 is received to the transmission / reception control unit 21.

In addition, since the reply signal A2 is transmitted only from the specific vehicle 30 (also referred to as a target vehicle) equipped with the vehicle-mounted device 31, the vehicle 50 (also referred to as a non-target vehicle) not equipped with the vehicle-mounted device 31 as shown in FIG. The first communication device 11 does not receive the return signal A2 even if it passes below the first communication device 11.
(Running condition monitoring device 20)
The traveling state monitoring device 20 includes a transmission / reception control unit 21, a traveling state determination unit 22, a storage unit 23, and a display unit 24. The traveling state monitoring device 20 is installed in a monitoring center of a road corporation that monitors the tunnel 40.

The transmission / reception control unit 21 controls the transmission / reception unit 10 to transmit the request signal A1. Specifically, the transmission / reception control unit 21 controls the first communication device 11 and the second communication device 12 so as to constantly transmit the request signal A1. Further, the transmission / reception control unit 21 receives the return signal A2 and time information received by the first communication device 11 and the second communication device 12, and determines information on the vehicle and time information included in the return signal A2 as a traveling state determination. To the unit 22.

The traveling state determination unit 22 counts the number of specific vehicles 30 that enter the tunnel 40 based on the vehicle information and time information received from the transmission / reception control unit 21. For example, when the specific vehicle 30 on which the vehicle-mounted device 31 is mounted is a dangerous material loaded vehicle, the number of vehicles on which the dangerous material is mounted is simply counted regardless of the type. May be. In addition, aggregation may be performed for each type of dangerous goods (explosives, gas, flammable liquid, flammable substances, oxidizing substances, poisonous substances, radioactive substances, corrosive substances, and harmful substances). . When the specific vehicle 30 is a special vehicle or a large vehicle, the totalization may be performed for each type of vehicle such as a truck crane, a semi-trailer, and a full trailer.

Moreover, the traveling state determination unit 22 counts the number of specific vehicles 30 that enter the tunnel 40 every day or every predetermined time.
The storage unit 23 stores information about the vehicle and time information regarding the specific vehicle 30 entering the tunnel 40, and stores the results totaled by the traveling state determination unit 22.
The display unit 24 displays the results tabulated by the traveling state determination unit 22. Note that the display unit 24 may display not only the total result but also time information indicating when the specific vehicle 30 entered the tunnel 40 at what time.

<Operation>
The operation of the vehicle management system 100 of the present embodiment will be described. FIG. 5 is a flowchart showing the operation of the vehicle management system 100.
As shown in FIG. 5, in the vehicle management system 100 of the present embodiment, the request signal A1 is always directed from the first communication device 11 and the second communication device 12 of the transmission / reception unit 10 toward the first lane R1 and the second lane R2. Has been transmitted (step S100).

When the specific vehicle 30 equipped with the vehicle-mounted device 31 reaches the entrance of the tunnel 40, the vehicle-mounted device 31 is activated by the request signal A1 and transmits a reply signal A2 to the transmission / reception unit 10 (step S200).
When the transmission / reception unit 10 receives the reply signal A2 from the vehicle-mounted device 31, the reply signal A2 and the time information are transmitted to the traveling state determination unit 22 via the transmission / reception control unit 21, and the number of specific vehicles 30 entering the tunnel 40 Are counted (step S300).

In step S300, the reply signals A2 sent to the traveling state determination unit 22 may be added up in order. For example, it can be counted how many specific vehicles 30 are entering the tunnel 40 every hour. Further, the aggregation may be performed for each of the first lane R1 and the second lane R2.
Alternatively, the number of specific vehicles 30 in the tunnel 40 may be estimated in real time using the time taken to exit the tunnel 40 determined from the average speed of the vehicle and the length of the tunnel 40.

Then, the result counted by the traveling state determination unit 22 is displayed on the display unit 24 (step S400). The display unit 24 displays the counting result based on the counting method of the traveling state determination unit 22. For example, when the traveling state determination unit 22 counts the number of specific vehicles 30 entering the tunnel 40 every predetermined time, the display unit 24 indicates the number of specific vehicles entering the tunnel 40 every predetermined time. Is displayed. For example, when counting the number of specific vehicles 30 existing in the tunnel 40 in real time, the display unit 24 displays the number of specific vehicles 30 existing in the tunnel 40 at each time.

On the other hand, information on the specific vehicle 30 displayed on the display unit 24 and counted by returning the reply signal A2 is stored in the storage unit 23 (step S500). At the time of this storage, the time of entry into the tunnel 40 is stored in association with information related to the vehicle. Note that step S400 and step S500 may be performed at the same time, or step S500 may be performed before step S400. Further, only step S500 may be always performed, and the display of step S400 may be displayed in accordance with the operation of the user who handles the traveling state monitoring device 20, at that time.

(Embodiment 2)
Next, the vehicle management system 200 according to the second embodiment of the present invention will be described with reference to the drawings.
Unlike the vehicle management system 100 according to the first embodiment, the vehicle management system 200 according to the second embodiment does not always transmit the request signal A1, but only when the vehicle type of the specific vehicle is recognized by the camera. Send. In the second embodiment, the configuration different from that of the first embodiment will be mainly described, and the same components as those of the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

<Configuration>
FIG. 6 is a block diagram illustrating a configuration of the vehicle management system 200 according to the second embodiment. As shown in FIG. 6, the vehicle management system 200 of the second embodiment includes an imaging unit 210 and a vehicle type determination unit 250. The imaging unit 210 images a vehicle that moves so as to pass through an area that transmits the request signal A1. The vehicle type determination unit 250 is provided in the traveling state monitoring device 220 and determines whether the moving vehicle is a vehicle type of a specific vehicle on which the vehicle-mounted device 31 is mounted based on the captured image. When the vehicle type determination unit 250 determines that the vehicle type is the specific vehicle 30, the transmission / reception control unit 21 controls the transmission / reception unit 10 to transmit the request signal A1.

(Imaging unit 210)
The imaging unit 210 includes a first camera 211 and a second camera 212 as shown in FIG. FIG. 7 is a diagram illustrating an example of installation locations of the first camera 211 and the second camera 212. As shown in the figure, the first camera 211 is disposed next to the first communication device 11 of the support member 41. Further, the second camera 212 is arranged next to the second communication device 12 on the support member 41.

The imaging area 211a of the first camera 211 covers the first lane R1 and is formed in front of the communication area 11a. The imaging area 212a of the second camera 212 covers the second lane R2 and is formed in front of the communication area 12a.
The first camera 211 and the second camera 212 are continuously capturing images, and sequentially transmit the captured image data to the vehicle type determination unit 250. The interval for continuous shooting is set to an interval at which at least a vehicle that enters the tunnel 40 without being imaged by the first camera 211 and the second camera 212 does not occur. This interval is obtained from the distance that can be imaged (the length along the traveling direction of the imaging areas 211a and 212a) and the speed of the vehicle (the speed that the driver is likely to emit).

It should be noted that when continuous shooting is performed with the first camera 211 and the second camera 212, a large amount of images are transmitted to the vehicle type determination unit 250, so that the processing load on the vehicle type determination unit 250 is expected to increase. For this reason, for example, a means for extracting only an image including a vehicle and transmitting it to the vehicle type determination unit 250 may be provided between the first camera 211 and the second camera 212 and the vehicle type determination unit 250.

Accordingly, even when continuous shooting is performed with the first camera 211 and the second camera 212, when a violation is detected, only the image selected in advance by the vehicle type determination unit 250 can be processed. Therefore, the processing burden can be reduced.
(Vehicle type discrimination unit 250)
The vehicle type determination unit 250 determines whether the image type transmitted from the imaging unit 210 captures the vehicle type of the specific vehicle 30 on which the vehicle-mounted device 31 is mounted.

As the determination method, various known techniques as shown in Patent Documents 2 to 4 can be applied. For example, the image data is analyzed, and it is determined that the vehicle type is the specific vehicle 30 from the recognition result of characters (danger, poison, play) described on the vehicle. In addition, for example, the vehicle type of the specific vehicle 30 is determined based on the vehicle height, vehicle width, vehicle length, or the like, or their ratio (see Patent Documents 2 and 4). Further, for example, it is determined that the vehicle type of the specific vehicle 30 is based on the appearance of the vehicle. In addition, for example, the license plate is recognized from the image data, and it is determined that the vehicle is the type of the specific vehicle 30 based on the recognition of a specific character or the color or size of the license plate (see Patent Document 3).

FIG. 8 is a diagram illustrating an example of an image transmitted from the imaging unit 210. In the image P1 shown in FIG. 9, a dump truck is shown as an example of the specific vehicle 30, and a license plate 301 is disposed below the front surface. Next to the license plate 301, a display 302 is provided that indicates “hazard” characters indicating that dangerous materials are being transported.
When it is detected that the traveling vehicle is the vehicle type of the specific vehicle 30, the vehicle type determination unit 250 transmits that fact to the transmission / reception control unit 21. Then, the transmission / reception control unit 21 controls the transmission / reception unit 10 to transmit the request signal A1. Here, since information (lane information) indicating whether the image is captured by the first camera 211 or the second camera 212 is also transmitted to the vehicle type determination unit 250, the communication device on the lane side that has detected the specific vehicle 30 The control is performed so that the request signal A1 is transmitted from. Since the vehicle-mounted device 31 is mounted on the specific vehicle 30, a reply signal A2 is returned from the vehicle-mounted device 31 to the request signal A1.

The vehicle type discriminating unit 250 can discriminate, for example, a vehicle type that is a dangerous goods-equipped vehicle by character recognition, but it cannot discriminate even more detailed types of dangerous goods, the current presence / absence status of dangerous goods, and the like. On the other hand, since the reply signal A2 includes detailed information such as the type of dangerous goods as information about the vehicle, the traveling state monitoring device 20 can obtain more detailed information.
Further, for example, when a truck as shown in FIG. 2A is photographed, the traveling state monitoring device 20 discriminates the vehicle type that is a truck in the vehicle type discriminating unit 250, and the detailed transfer / carrying material from the reply signal A2. Get information of type.

<Operation>
Next, operation | movement of the vehicle management system 200 of this Embodiment is demonstrated. FIG. 9 is a flowchart showing the operation of the vehicle management system 200 of the present embodiment. FIGS. 10A and 10B are diagrams illustrating an operation in which the specific vehicle 30 enters the tunnel 40. 10A and 10B show only the second lane R2.

First, in step S10, as shown in FIG. 10A, the first camera 211 and the second camera 212 continuously photograph roads. The captured image data is sequentially transmitted to the vehicle type determination unit 250.
Next, in step S <b> 20, the vehicle type determination unit 250 sequentially analyzes the captured images, and detects whether the vehicle is the specific vehicle 30 when the vehicle is captured. When the specific vehicle 30 is detected, the vehicle type determination unit 250 transmits information indicating that the specific vehicle 30 has been detected to the transmission / reception control unit 21 together with the captured lane information.

Next, in step S30, the request signal A1 is transmitted from the transmission / reception unit 10 as shown in FIG. Then, the reply signal A2 is returned from the vehicle-mounted device 31 mounted on the specific vehicle 30, and the transmission / reception unit 10 receives the reply signal A2 (step S200).
The subsequent operations are the same as those in the first embodiment, but in the second embodiment, since the image of the specific vehicle 30 is also acquired, the image of the specific vehicle 30 may also be displayed in step S400. In step S500, the image information of the vehicle may be stored in association with the information about the vehicle. 10B shows that the request signal A1 and the reply signal A2 are transmitted and received after passing through the support member 41, the communication may be completed before the support member 41 passes.

(Camera installation example)
In the above embodiment, as shown in FIGS. 6 and 7, the first camera 211 and the second camera 212 are arranged at the upper part of the entrance of the tunnel 40, but the present invention is not limited to this. For example, as illustrated in FIG. 11, a support member 41 is provided on the front side in the traveling direction from the entrance of the tunnel 40, and the first communication device 11, the second communication device 12, the first camera 211, and the first camera are provided on the support member 41. Two cameras 212 may be attached.

In addition, as shown in FIG. 12, only the first camera 211 and the second camera 212 may be arranged closer to the traveling direction than the entrance of the tunnel 40. The first camera 211 and the second camera 212 are disposed outside the first lane R1 and the second lane R2.
Moreover, in the said embodiment, as shown in FIG.6 and FIG.7, although the two cameras of the 1st camera 211 and the 2nd camera 212 are installed, it does not need to be restricted to this structure.

For example, as shown in FIG. 13, a camera is not provided for each lane, and the first lane R1 and the second lane R2 may be imaged by one camera 213. The camera 213 is disposed above the center of the first lane R1 and the second lane R2, and an imaging area 213a by the camera 213 is provided over the first lane R1 and the second lane R2.
In this case, the vehicle type determination unit 250 transmits to the transmission / reception control unit 21 lane information indicating which of the first lane R1 and the second lane R2 the specific vehicle 30 is determined from the image data captured by the camera 213. To do. Based on the transmitted lane information, the transmission / reception controller 21 controls either the first communication device 11 or the second communication device 12 to cause the request signal A1 to be transmitted. In the example of FIG. 13, since the specific vehicle 30 is traveling in the second lane R2 and the vehicle 50 that is not the target is traveling in the first lane R1, the request signal A1 is transmitted from the second communication device 12. The

(Embodiment 3)
Below, the vehicle management system 300 in Embodiment 3 concerning this invention is demonstrated.
The vehicle management system 300 according to the third embodiment differs from the vehicle management system 100 according to the first embodiment in that a transmission / reception unit is also provided on the exit side of the tunnel 40. In the third embodiment, the configuration different from that of the first embodiment will be mainly described. The same components as those of the first embodiment are denoted by the same reference numerals and the description thereof will be omitted.

<Configuration>
FIG. 14 is a block diagram illustrating a configuration of the vehicle management system 300 according to the third embodiment. As shown in FIG. 14, the vehicle management system 300 according to the third embodiment is provided in the transmission / reception unit 310 disposed on the exit side of the tunnel 40 and the traveling state monitoring device 320 in addition to the configuration of the first embodiment. And a transmission / reception control unit 321 for controlling the transmission / reception unit 310.

(Transceiver 310)
The transmission / reception unit 310 of the vehicle management system 300 includes a first communication device 311 and a second communication device 312. FIG. 15 is a top view illustrating an installation example of the first communication device 311 and the second communication device 312. In FIG. 15, the tunnel 40 is indicated by a dotted line. A support member 341 similar to the support member 41 on the entrance side is also disposed on the exit side of the tunnel 40, and the first communication device 311 and the second communication device 312 are supported above the road by the support member 341. .

The first communication device 311 is disposed above the first lane R1 by the support member 341, and has a communication area 311a on the first lane R1 in the vicinity of the exit of the tunnel 40. The second communication device 312 is disposed above the second lane R2 by the support member 341, and has a communication area 312a on the second lane R2 in the vicinity of the exit of the tunnel 40.
The first communication device 311 and the second communication device 312 are controlled by the transmission / reception control unit 321 so as to constantly transmit the request signal A1 to the respective communication areas 311a and 312a.

The first communication device 311 and the second communication device 312 receive the reply signal A2 returned from the vehicle-mounted device 31 in response to the request signal A1, and transmit / receive control information about the reply signal A2 and the time information when the reply signal A2 is received. 321 is transmitted. The reply signal A2 includes information regarding the specific vehicle 30.
(Running status determination unit 22)
The traveling state determination unit 22 is based on information about the vehicle received from the transmission / reception control unit 21 that controls the transmission / reception unit 10 on the entrance side and information about the vehicle received from the transmission / reception control unit 321 that controls the transmission / reception unit 310 on the exit side. The number of specific vehicles 30 in the tunnel 40 is counted.

That is, the traveling state determination unit 22 determines the number of the specific vehicles 30 existing in the tunnel 40 from the time information entering the tunnel 40 and the information related to the specific vehicle 30, the time information leaving the tunnel 40 and the information related to the specific vehicle 30. Ask for.
<Operation>
Next, the operation of the vehicle management system 300 according to the third embodiment will be described. FIG. 16 is a flowchart showing the operation of the vehicle management system 300 according to the third embodiment.

In the transmission / reception unit 10 on the entrance side of the tunnel 40, the request signal A1 is always transmitted from the first communication device 11 and the second communication device 12. Further, in the transmission / reception unit 310 on the exit side of the tunnel 40, the request signal A1 is always transmitted from the first communication device 311 and the second communication device 312 (step S100).
When the specific vehicle 30 enters the tunnel 40, a response signal A2 is returned from the vehicle-mounted device 31 to the request signal A1 on the entrance side, and the transmission / reception unit 10 (any one of the first communication device 11 and the second communication device 12). Receives the reply signal A2.

On the other hand, when the specific vehicle 30 leaves the tunnel 40, a reply signal A2 is returned from the vehicle-mounted device 31 to the request signal A1 on the exit side, and the transmission / reception unit 310 (the first communication device 311 or the second communication device 312). ) Receives the reply signal A2.
The traveling state monitoring device 320 determines whether the specific vehicle 30 has entered or exited the tunnel 40 by receiving the return signal A2 on the entrance side or the exit side (steps S200 and S210).

Subsequently, the number of specific vehicles is calculated (step S310).
That is, when the reply signal A2 is received by the transmission / reception unit 10 on the entrance side, the reception time information and the information about the vehicle are transmitted to the traveling state determination unit 22 via the transmission / reception control unit 21. The traveling state determination unit 22 adds one to the number of specific vehicles 30 in the tunnel 40 until the reply signal A2 is received, and updates the number of specific vehicles 30 in the tunnel 40. For example, when there are two specific vehicles 30 in the tunnel 40, the traveling state determination unit 22 adds one and counts the number of the specific vehicles 30 in the tunnel 40 as three. Further, when the reply signal A2 is received at the exit side of the tunnel 40, the reception time information and the information regarding the vehicle are transmitted to the traveling state determination unit 22 via the transmission / reception control unit 321. The traveling state determination unit 22 detects, for example, a specific vehicle 30 existing in the tunnel 40 until the reply signal A2 is received, for example, a vehicle having the same ID number, and subtracts the detected vehicle in the tunnel 40. The number of specific vehicles 30 is obtained. The calculation of the specific vehicle 30 may be classified according to the type of dangerous goods to be transported / transported, and the number of each classification may be obtained in real time, or simply the number of the specific vehicles 30 may be obtained in real time. .

Next, in step S <b> 400, the result counted by the traveling state determination unit 22 is displayed on the display unit 24. The display unit 24 may display the number of specific vehicles 30 in the tunnel 40 at the current time, and may change from moment to moment. Further, the display unit 24 may display the number of specific vehicles 30 in the tunnel 40 for each dangerous article classification.
Next, in step S500, information related to the vehicle, entry time (entrance-side reception time), and exit time (exit-side reception time) are displayed in the storage unit 23.

(Embodiment 4)
Next, the vehicle management system 400 of Embodiment 4 concerning this invention is demonstrated. The vehicle management system 400 according to the present embodiment detects a lane change prohibition violation using the camera described in the second embodiment, and stores the information in the vehicle-mounted device 31. In the fourth embodiment, the configuration different from that of the second embodiment will be mainly described, and the same components as those of the second embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

<Configuration>
FIG. 17 is a block diagram showing the configuration of the vehicle management system 400 of the present embodiment. The vehicle management system 400 shown in FIG. 17 includes an imaging unit 410 having one camera 213 (see FIG. 13) instead of the imaging unit 210, as compared with the vehicle management system 200 of the second embodiment. ing. The traveling state monitoring device 420 of the vehicle management system 400 further includes a violation detection unit 450. The violation detection unit 450 detects a lane change violation using the image data captured by the camera 213.

FIG. 18 is a top view showing the vicinity of the entrance of the tunnel 40. The arrangement of the camera 213, the first communication device 11, and the second communication device 12 shown in FIG. 18 is the same as the configuration shown in FIG. As shown in FIG. 18, the vicinity of the entrance of the tunnel 40 is often a lane change prohibition section. The vehicle management system 400 detects a lane change that moves between the first lane R1 and the second lane R2, for example, as indicated by an arrow B in FIG.

When the violation detection unit 450 detects a lane change violation from the image data obtained by the camera 213, the transmission / reception control unit 21 transmits a violation signal A3 including information indicating that a lane change violation has been performed from the transmission / reception unit 10. For example, as shown in FIG. 18, when a lane change is made from the second lane R2 to the first lane R1, a violation signal is sent from the first communication device 11 on the first lane R1 to the specific vehicle 30. A3 is transmitted.

<Operation>
Next, the operation of the vehicle management system 400 of the present embodiment will be described. FIG. 19 is a flowchart showing the operation of the vehicle management system 400 of the present embodiment.
In step S10, continuous shooting is performed by the camera 213. The captured image data is sequentially transmitted to the vehicle type determination unit 250 and the violation detection unit 450.

In step S <b> 20, the vehicle type determination unit 250 sequentially analyzes the captured images and detects whether the vehicle is a vehicle type of the specific vehicle 30 on which the vehicle-mounted device 31 is mounted when the vehicle is captured.
When the specific vehicle 30 is detected, in step S25, the violation detection unit 450 detects whether or not the specific vehicle 30 has made a lane change violation based on the captured image. If no lane change violation is detected in step S25, the transmission / reception control unit 21 controls the transmission / reception unit 10 to transmit the request signal A1 in step S30. Here, the transmission / reception control unit 21 causes the request signal A1 to be transmitted from the communication device (the first communication device 11 or the second communication device 12) corresponding to the lane in which the specific vehicle 30 is traveling by analyzing the image data.

The on-vehicle device 31 transmits a reply signal A2 when receiving the request signal A1.
When the transmission / reception unit 10 receives the reply signal A2, steps S300, S400, and S500 are executed as in the first and second embodiments.
On the other hand, when a lane change prohibition violation of the specific vehicle 30 is detected in step S25, the transmission / reception control unit 21 controls the transmission / reception unit 10 to transmit the request signal A1 and the violation signal A3 in step S35. Here, the transmission / reception control unit 21 transmits the request signal A1 and the violation signal A3 from the communication device (the first communication device 11 or the second communication device 12) corresponding to the lane changed by the specific vehicle 30 by analyzing the image data. .

When the on-vehicle device 31 receives the request signal A1 and the violation signal A3, the on-vehicle device 31 transmits a reply signal A2, and stores information related to the lane change violation included in the violation signal A3.
Note that the lane change prohibition violation may be displayed at the same time as the display in step S400. In step S500, the lane change prohibition violation is also stored in the storage unit 23 in association with information related to the vehicle.
In the above description, the request signal A1 and the violation signal A3 are transmitted simultaneously. However, the violation signal A3 may be transmitted to the vehicle-mounted device 31 after the request signal A1 is transmitted and the reply signal A2 is received.

(Embodiment 5)
Next, a vehicle management system 500 according to the fifth embodiment of the present invention will be described. The vehicle management system 500 according to the present embodiment further includes a configuration for detecting a lane change violation with respect to the vehicle management system 300 according to the third embodiment.

In many cases, the lane change is prohibited in the tunnel, and the vehicle management system 500 of the present embodiment detects a lane change prohibition violation in the tunnel of the specific vehicle. In the fifth embodiment, the configuration different from the third embodiment will be mainly described, and the same components as those in the second embodiment will be denoted by the same reference numerals and the description thereof will be omitted.
<Configuration>
FIG. 20 is a block diagram showing a configuration of a vehicle management system 500 according to the fifth embodiment. Unlike the third embodiment, the vehicle management system 500 according to the fifth embodiment is provided with a violation detection unit 525 in the traveling state monitoring device 520.

In the fifth embodiment, when the transmission / reception unit 10 receives a reply signal from the specific vehicle 30, the transmission / reception unit 10 sends a reply together with the information of the reply signal A2 in any of the first communication device 11 and the second communication device 12. Lane information indicating whether the signal A2 has been received is also transmitted to the transmission / reception control unit 21. The transmission / reception control unit 21 transmits the information of the reply signal A2 and the lane information to the traveling state determination unit 22.
In addition, when the transmission / reception unit 310 receives the reply signal A2 from the specific vehicle 30, the transmission / reception unit 310 receives the reply signal A2 together with the information of the reply signal A2 in any of the first communication device 311 and the second communication device 312. Lane information indicating whether or not the vehicle has been transmitted is also transmitted to the transmission / reception control unit 321. The transmission / reception control unit 321 transmits the information of the reply signal A2 and the lane information to the traveling state determination unit 22.

The violation detection unit 525 compares the lane information sent from the transmission / reception control unit 321 with the lane information sent from the transmission / reception control unit 321 for the specific vehicle 30 having the same ID, and the lanes at the entrance and the exit Lane change prohibition is detected when they are different.
In addition, the transmission / reception unit 310 on the exit side transmits information indicating that a lane change prohibition violation has been made to the specific vehicle 30 as a violation signal A3.

<Operation>
Next, the operation of the vehicle management system 500 according to the fifth embodiment will be described. FIG. 21 is a flowchart showing the operation of the vehicle management system 500 of the present embodiment.
The process up to step S310 is the same as in the third embodiment. That is, the request signal A1 is always transmitted from the transmission / reception unit 10, and the request signal A1 is always transmitted from the transmission / reception unit 310 (step S100).

When either the transmission / reception unit 10 or the transmission / reception unit 310 receives the reply signal A2 (steps S200 and S210), the number of specific vehicles 30 in the tunnel 40 is counted as in the third embodiment (step S310). .
When the reply signal A2 is received by the transmission / reception unit 10 on the entrance side, the control proceeds to step S400.

On the other hand, when the return signal A2 is received by the transmission / reception unit 310 on the exit side, after counting in step S310, it is determined in step S330 whether or not a lane change prohibition violation has been performed. Here, the violation detection unit 525 identifies the specific vehicle 30 having the same ID among the specific vehicles 30 entering the tunnel 40 from the information regarding the vehicle from the transmission / reception unit 310. If the lane information when entering the tunnel 40 of the specific vehicle 30 having the same ID matches the lane information when exiting the tunnel 40 and the lanes at the entrance and exit match, the lane change is not performed On the other hand, if the lanes at the entrance and the exit do not match, the violation detection unit 525 transmits an instruction to transmit the violation signal A3 to the transmission / reception control unit 321 as a lane change prohibition violation. As a result, the transmission / reception control unit 321 transmits the violation signal A3 from the transmission / reception unit 310. Here, the transmission / reception control unit 321 causes the violation signal A3 to be transmitted from the communication device (the first communication device 311 or the second communication device 312) that has received the reply signal A2. The onboard equipment 31 will memorize | store the information regarding the lane change violation contained in the violation signal A3, if the violation signal A3 is received.

Next, step S400 and step S500 are executed as in the third embodiment.
Note that the lane change prohibition violation may be displayed at the same time as the display in step S400. In step S500, the lane change prohibition violation is also stored in the storage unit 23 in association with information related to the vehicle.

<Features>
(1)
The vehicle management systems 100, 200, 300, 400, and 500 according to the above-described embodiments include a first communication device 11 and a second communication device 12 (an example of a communication device), a traveling state determination unit 22 (an example of a counting unit), Is provided. The first communication device 11 and the second communication device 12 transmit a request signal A1 requesting a reply to the specific vehicle 30 on which the on-vehicle device 31 is mounted, and include information on the specific vehicle 30 transmitted from the on-vehicle device 31. A reply signal A2 is received. The traveling state determination unit 22 is a specific vehicle that enters the tunnel 40 based on the return signal A2 received by the first communication device 11 and the second communication device 12 disposed at least on the entrance side of the tunnel 40 (an example of a predetermined area). Count 30 numbers.

Since the number of the specific vehicles 30 that have entered the tunnel 40 can be counted based on the return signal A2 from the vehicle-mounted device 31 in this way, the number of the specific vehicles 30 can be more accurately determined than when only judging from an image as in the past. Can be counted.
That is, since the reply signal A2 also includes information about the vehicle, it is possible to easily distinguish vehicles such as dangerous goods loaded vehicles, specific vehicles, large vehicles and the like that are difficult to distinguish from the images alone.

In addition, by including information on whether or not dangerous goods loaded vehicles are actually transporting dangerous goods in the information on vehicles, the number of vehicles actually loaded with dangerous goods will enter the tunnel 40 accurately. it can.
For example, when a disaster occurs in the tunnel 40, it is possible to grasp how many vehicles are approaching, so that prior information such as the type of dangerous goods loaded is given to the rescue entering the tunnel 40 be able to.
Further, since the vehicle-mounted device 31 is activated by receiving the request signal A1 and returns a reply signal A2, it is not always necessary to activate or constantly transmit a signal, thereby reducing power consumption in the specific vehicle 30. it can.

(2)
In the vehicle management systems 100, 200, 300, 400, and 500 of the present embodiment, the first communication device 11 and the second communication device 12 are provided for each lane. The communicator transmits a request signal inside the corresponding lane.
In the present embodiment, as shown in FIG. 3 and the like, the first communication device is arranged in the first lane R1, and the second communication device is arranged in the second lane R2. By arranging the communication devices for each lane in this way, the number of specific vehicles entering the tunnel 40 (an example of a predetermined area) can be accurately grasped for each lane.

(3)
The vehicle management systems 100, 200, 300, 400, and 500 according to the present embodiment include a storage unit 23 and a display unit 24. The memory | storage part 23 memorize | stores the information regarding the specific vehicle which approachs the tunnel 40 (an example of a predetermined area | region). The display unit 24 displays the number of specific vehicles 30 counted.

By displaying on the display unit 24 in this manner, the number of specific vehicles 30 entering the tunnel 40 can be grasped at a monitoring center or the like that monitors the traffic state of the tunnel 40.
Moreover, since the information on the specific vehicle 30 entering the tunnel 40 is stored, the information on the vehicle entering the vehicle can be confirmed.
The display unit 24 may be a single liquid crystal display, plasma display, organic EL display, PC (Personal Computer) display screen, or the like.

(4)
In the vehicle management systems 300 and 500 of the present embodiment, the first communication device 311 and the second communication device 312 (an example of a communication device) are disposed on the exit side of the tunnel 40 (an example of a predetermined area). The traveling state determination unit 22 (an example of a counting unit) determines the number of specific vehicles 30 that have exited the tunnel 40 based on the return signal A2 received by the first communication device 311 and the second communication device 312 on the exit side of the tunnel 40. The number of specific vehicles 30 in the tunnel 40 is obtained based on the number of specific vehicles 30 that have been counted and the number of specific vehicles 30 that have entered.
Thereby, the number of the specific vehicles 30 passing through the tunnel 40 can be accurately grasped. For this reason, accurate information can be communicated to a fire brigade or the like when a disaster occurs in the tunnel 40.

(5)
The vehicle management systems 200 and 400 according to the present embodiment further include imaging units 210 and 410 and a vehicle type determination unit 250. The imaging units 210 and 410 capture images of vehicles passing through the communication areas 11a and 12a (an example of a predetermined area) that transmits the request signal A1. The vehicle type discriminating unit 250 determines whether or not the passing vehicle is the vehicle type of the specific vehicle 30 based on the captured image. The first communication device 311 and the second communication device 312 transmit the request signal A1 when it is determined that the passing vehicle is the vehicle type of the specific vehicle 30.
Thereby, since it is only necessary to transmit the request signal A1 only to the vehicle recognized as the vehicle type of the specific vehicle 30 by the imaging units 210 and 410, the first communication device 11 and the second communication device 12 always transmit the request signal A1. This saves energy and saves energy.

(6)
The vehicle management systems 200 and 400 according to the present embodiment further include a storage unit 23. The storage unit 23 stores an image of the specific vehicle 30 entering the tunnel 40 (an example of a predetermined area) and information related to the specific vehicle 30 in association with each other.
Thereby, the image of the specific vehicle 30 entering the tunnel 40 can also be confirmed.

(7)
The vehicle management system 400 according to the present embodiment further includes a violation detection unit 450. Violation detection unit 450 determines a lane change prohibition violation of a passing vehicle based on the captured image. When the violation detection unit 450 determines that a lane change prohibition violation has been made, the first communication device 11 and the second communication device 12 (an example of a communication device) use the violation change prohibition information as the violation signal A3. It transmits to the onboard equipment 31. Information on the lane change prohibition violation is stored in the vehicle-mounted device 31.
Thereby, the lane change prohibition violation can be detected when the lane change is prohibited at the entrance of the tunnel 40. It is also possible to make the vehicle driver or owner recognize the traffic violation. Furthermore, since it is memorize | stored in the onboard equipment 31, it is easy to charge a violation money (foul money).

(8)
In the vehicle management system 500 of the present embodiment, the first communication device 311 and the second communication device 312 are also arranged for each lane on the exit side of the tunnel 40. The vehicle management system 500 further includes a violation detection unit 525. The violation detection unit 525 receives the return signal A2 of the same specific vehicle 30 in different lanes in the first communication devices 11 and 311 and the second communication devices 12 and 312 on the entrance side and the exit side. Detects a change prohibition violation. When the lane change prohibition violation is detected by the violation detection unit 525, the first communication device 311 or the second communication device 312 transmits information on the lane change prohibition violation to the in-vehicle device 31 as the violation signal A3. Information on the lane change prohibition violation is stored in the vehicle-mounted device 31.
Thereby, when a lane change is prohibited in the tunnel 40, a lane change prohibition violation can be detected. It is also possible to make the vehicle driver or owner recognize the traffic violation. Furthermore, since it is memorize | stored in the onboard equipment 31, it is easy to charge a fine.

(9)
The vehicle management method of the present embodiment includes steps S100, S30, and S110 (an example of a transmission step), steps S200 and S210 (an example of a reception step), and step S400 (an example of a counting step). Steps S100, S30, and S110 (an example of a transmission step) include a request signal A1 that requests information on the specific vehicle 30 from the specific vehicle 30 on which the vehicle-mounted device 31 is mounted on the entrance side of the tunnel 40 (an example of a predetermined area). Send. Steps S <b> 200 and S <b> 210 (an example of a reception step) receive a reply signal A <b> 2 including information related to the specific vehicle 30 transmitted from the vehicle-mounted device 31. Step S400 (an example of a counting step) counts the number of specific vehicles 30 that enter the tunnel 40 based on the return signals received by the arranged first communication device 11 and the second communication device 12 (an example of a communication device). .

Thus, since the number of the specific vehicles 30 entering the tunnel 40 can be counted based on the reply signal A2 to the signal from the vehicle-mounted device 31, the number of the specific vehicles 30 can be grasped more accurately than judging only from the image. it can.

<Other embodiments>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of invention.

(A)
In the above embodiment, the transmission / reception units 10 and 310 and the imaging units 210 and 410 that transmit and receive signals are installed on the road, but the transmission / reception control units 21 and 321, the vehicle type determination unit 250, the violation detection unit 450, and the like are also on the road. May be installed.
For example, the vehicle management system 200 of the second embodiment will be described as an example. As shown in FIG. 22, the vehicle type discriminating unit 250 and the transmission / reception control unit 21 together with the transmission / reception unit 10 for communicating with the vehicle serve as the communication facility 230 on the road side May be provided. When there is one communication device, the vehicle type determination unit 250 and the transmission / reception control unit 21 may be incorporated in the communication device.

(B)
In addition, the vehicle management systems 100, 200, 300, 400, and 500 of the above embodiment may be implemented by a hardware configuration as shown in FIG. 23, for example. The vehicle management system 100 according to the first embodiment will be described as an example. The vehicle management system 100 is connected to an external transmission / reception unit 10 via a network N such as the Internet, a LAN (Local Area Network), or a WAN (Wide Area Network). Is done.

The storage device 623 constituting the storage unit 23 described above may be included in the vehicle management system 100, but may be connected from the outside by wireless or wired as shown in the figure. In addition, the display device 624 constituting the display unit 24 described above may be included in the vehicle management system 100, but may be connected to the vehicle management system 100 as shown in the figure, and may be included in other systems. A display unit or the like may be used.

The traveling state monitoring device 20 of the vehicle management system 100 is configured by a computer terminal, and includes a CPU (Central Processing Unit) 610, a RAM (Random Access Memory) 620, an output unit 630, a communication device 640, an input unit 650, and the like. .
The CPU 610 executes various arithmetic processes and the like, and executes a predetermined control program that is read into the RAM 620 and developed. The function of the traveling state determination unit 22 is executed by this control program. In other embodiments, the CPU 610 also executes functions such as the vehicle type determination unit 250 and the violation detection units 450 and 525.

The RAM 620 includes a memory element such as SRAM (Static RAM) or DRAM (Dynamic RAM), and stores data generated during the processing of the CPU 610.
The output unit 630 has connection terminals for connecting cables for transmitting analog signals or digital signals such as images and sounds, and is connected to the display device 624 described above via these cables. The output unit 630 converts various types of information read from the storage device 623 into image signals, and outputs them to the display device 624 via a cable. Further, the connection is not limited to a wired connection using a cable, and may be a wireless connection.

The communication device 640 constitutes the transmission / reception control unit 21, has a connection terminal for connecting a communication cable, and is connected to the network N via the communication cable. The communication device 640 transmits / receives data to / from the first communication device 11 and the second communication device 12 connected to the network N. Note that the data communication between the first communication device 11 and the second communication device 12 and the traveling state monitoring device 20 is not limited to wired communication but may be wireless.

The input unit 650 is configured by (mouse, keyboard, touch panel operated on the screen, etc.). The input unit 650 accepts information input by user operation, menu selection, and the like, and notifies the CPU 610 of the accepted operation content.
The storage device 623 includes a semiconductor memory, a magnetic recording medium, an optical recording medium, and the like. Note that the storage device 623 may realize the function of the storage unit 23.

(C)
In the above-described embodiment, examples of the specific vehicle include a dangerous material loaded vehicle, a special vehicle, and a large automobile. However, the present invention is not limited to these, and the vehicle mounted with the vehicle-mounted device 31 can be counted.
(D)
In the above-described embodiment, the tunnel has been described as an example of the predetermined area. However, the present invention is not limited to the tunnel, and may be, for example, a bridge, a parking lot, a border, a construction site, or the like.

(E)
In the second and fourth embodiments, continuous shooting is performed with a camera. However, a sensor for detecting a vehicle may be provided, and shooting with the camera may be performed when the vehicle is detected in conjunction with the sensor. Thereby, the burden of the analysis process of the vehicle type discrimination | determination part 250 can be reduced.
In addition, since the distance from the camera to the vehicle tends to be constant, it is easy to determine the size and shape of the vehicle.
Furthermore, in the second and fourth embodiments, a lane change prohibition violation is detected using a camera, but a speed violation may be detected.

(F)
In the above embodiment, since there are two lanes, two communication devices (the first communication device 11 and the second communication device 12) are provided. However, the number of communication devices is not limited to two. Can be matched to the number of

(G)
In the fifth embodiment, the lane change prohibition violation is detected using the transmission / reception unit 10 on the entrance side and the transmission / reception unit 310 on the exit side, but the inside of the tunnel 40 is photographed on the support member 341 on the exit side. A lane change prohibition violation may be detected by a camera.

The vehicle management system and the vehicle management method of the present invention are expected to be widely used as a vehicle management system in each country because the number of specific vehicles entering a predetermined area such as a tunnel can be accurately measured.

DESCRIPTION OF SYMBOLS 10 Transmission / reception part 11 1st communication apparatus 11a Communication area 12 2nd communication apparatus 12a Communication area 20 Travel condition monitoring apparatus 21 Transmission / reception control part 22 Travel condition determination part 23 Memory | storage part 24 Display part 30 Specific vehicle 31 Onboard equipment 40 Tunnel 41 Support member 41a Upper side portion 50 Vehicle 100 Vehicle management system 200 Vehicle management system 210 Imaging unit 211 First camera 211a Imaging area 212 Second camera 212a Imaging area 213 Camera 213a Imaging area 220 Travel condition monitoring device 230 Communication facility 250 Vehicle type determination unit 300 Vehicle management System 310 Transmission / reception unit 311 First communication device 311a Communication area 312 Second communication device 312a Communication area 320 Travel condition monitoring device 321 Transmission / reception control unit 341 Support member 400 Vehicle management system 410 Imaging 420 running situation monitoring apparatus 450 violation detecting section 500 vehicle management system 520 running condition monitoring system 525 violation detecting section 610 CPU
620 RAM
623 Storage device 624 Display device 630 Output unit 640 Communication device 650 Input unit A1 Request signal A2 Reply signal A3 Violation signal

Claims (11)

1. A communication device that transmits a request signal for requesting a reply to a specific vehicle equipped with an on-vehicle device, and receives a reply signal including information on the specific vehicle transmitted from the on-vehicle device;
   A counting unit that counts the number of the specific vehicles that enter the predetermined area based on the return signal received by the communication device disposed at least on the entrance side of the predetermined area;
   Vehicle management system.
2. The communication device is provided for each lane,
   Sending the request signal inside the corresponding lane;
   The vehicle management system according to claim 1.
3. A storage unit for storing information on the specific vehicle entering the predetermined area;
   A display unit for displaying the counted number of the specific vehicles;
   The vehicle management system according to claim 1, comprising:
4. The communication device is also disposed on the exit side of the predetermined area,
   The counting unit counts the number of the specific vehicles that have exited the predetermined area based on the reply signal received by the communication device on the exit side of the predetermined area, and enters the number of the specific vehicles that have exited and the entry Based on the number of the specific vehicles, the number of the specific vehicles in the predetermined area is obtained.
   The vehicle management system according to claim 1.
5. An imaging unit that captures an image of a vehicle that moves so as to pass through an area for transmitting the request signal;
   A vehicle type discriminating unit that determines whether or not the vehicle to pass is a vehicle type of the specific vehicle based on the captured image;
   The communication device transmits the request signal when it is determined that the passing vehicle is a type of the specific vehicle.
   The vehicle management system according to claim 1.
6. A storage unit that associates and stores an image of the specific vehicle entering the predetermined area and information about the specific vehicle;
   The vehicle management system according to claim 5.
7. Further comprising a violation detector for detecting a lane change prohibition violation of the passing vehicle based on the captured image;
   The communication device, when it is detected by the violation detection unit that the lane change prohibition violation has been performed, transmits information on the lane change prohibition violation to the on-vehicle device as a violation signal,
   Information on the lane change prohibition violation is stored in the on-vehicle device,
   The vehicle management system according to claim 5.
8. The communication device is arranged for each lane on the exit side of the predetermined area,
   A violation detector for detecting a lane change prohibition violation of the specific vehicle when the reply signal of the same specific vehicle is received in a different lane in the communication device on the entrance side and the exit side;
   When the lane change prohibition violation is detected by the violation detector, the communication device transmits information on the lane change prohibition violation to the on-vehicle device as a violation signal,
   Information on the lane change prohibition violation is stored in the on-vehicle device,
   The vehicle management system according to claim 2.
9. The vehicle management system according to any one of claims 1 to 8, wherein the specific vehicle includes at least one of a dangerous material loaded vehicle, a large vehicle, and a special vehicle.
10. 10. The vehicle management system according to claim 1, wherein the predetermined area is a tunnel.
11. A transmission step of transmitting a request signal for requesting information on the specific vehicle to the specific vehicle mounted with the vehicle-mounted device on the entrance side of the predetermined area;
    A receiving step of receiving a return signal including information on the specific vehicle transmitted from the on-vehicle device;
    A counting step of counting the number of the specific vehicles entering the predetermined area based on the return signal,
    Vehicle management method.

Images