JP2003085604A - Vehicle traffic management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make acquirable vehicle data such as an exhaust gas amount from an automobile in the case of charging a toll to the automobile and controlling the inflow of the automobiles to a specified area. SOLUTION: The automobile 3 is provided with on-vehicle equipment 4 and the vehicle data are stored in the on-vehicle equipment 4. On a road side, equipment 2 on a road for the specified area is positioned at an entrance, the vehicle data are acquired by communicating with the on-vehicle equipment 4 by the on-road equipment 2 and the toll corresponding to the exhaust gas amount or the like is collected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention obtains data about a vehicle, such as charging a vehicle traveling in a specific area according to the amount of exhaust gas from the vehicle, and determines the traffic of the vehicle. Related to a vehicle traffic management system.

[0002]

2. Description of the Related Art In recent years, ETC (Electronic Toll Collec
Non-stop automatic toll collection system) is being used on toll roads, and it is expected that this will alleviate traffic congestion at toll gates on toll roads.

On the other hand, in order to suppress the entry of vehicles into urban areas, ERP (Electronic Road Prising)
A toll collection system called a system that automatically charges roads) is under consideration. This is to collect a fee from a vehicle only when the vehicle enters a specified area.A cash card is inserted into an in-vehicle device mounted on the vehicle and a roadside device installed at the entrance of the restricted area. When a vehicle passes by, the system automatically deducts the charge from the cash card through the communication between the on-road device and the on-board device.If the remaining amount of the cash card becomes low, a special machine installed in a bank etc. You can add the amount of money at.

[0004]

For example, when a vehicle travels in a specific area in order to reduce air pollution in an urban area, and a toll is collected according to the amount of exhaust gas of the vehicle, The amount of vehicle exhaust gas must be determined. However, the conventional ERP does not have a system that can grasp the amount of exhaust gas of the vehicle.
It is difficult to realize the above-mentioned toll collection system for reducing air pollution by using a conventional road machine.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle traffic management system capable of grasping vehicle data such as an exhaust gas amount of a passing vehicle.

[0006]

According to a first aspect of the present invention, a vehicle-mounted device provided in a vehicle, a roadside antenna provided on a road side for communicating with the vehicle-mounted device, and data received by the roadside antenna. The in-vehicle device stores vehicle data that serves as a reference for making vehicle traffic determination, and the in-vehicle device stores the vehicle data based on the vehicle data acquired from the in-vehicle device via the roadside antenna. It is characterized by making a determination regarding traffic. According to this configuration, the management device can acquire the vehicle data from the vehicle-mounted device. Therefore, if the traffic management determination is different from the vehicle data depending on the characteristics of the vehicle, the characteristics are acquired for each vehicle and the traffic management is performed. A decision can be made.

According to the second aspect of the present invention, the applied vehicle traffic management system is a system for determining a charge amount according to the amount of exhaust gas for a vehicle entering a specific area. Even when applied to this system, the management device determines from the vehicle data of the vehicle-mounted device that the vehicle uses the internal combustion engine as the power source, or if the vehicle uses the internal combustion engine as the power source, the type and exhaust gas of the internal combustion engine. It is possible to detect the amount and the like of the vehicle from the vehicle data and perform appropriate charging according to the vehicle.

According to a third aspect of the present invention, the management device transmits the determination result to the vehicle-mounted device via the roadside antenna. According to this, for example, when the vehicle enters the inflow regulation area, it is possible to prevent the occurrence of a defect such that the vehicle is treated as a violating vehicle without the driver's knowledge.

The invention of claim 4 is characterized in that the vehicle is provided with informing means for informing the determination result transmitted from the management device to the vehicle-mounted device. According to this, the driver can easily know the charge amount and the like.

A fifth aspect of the present invention is characterized in that a storage section for storing vehicle data of the vehicle-mounted device is provided in a sealing section of a vehicle license plate. According to this, it is possible to prevent fraudulent operations such as removing the storage unit and changing the stored contents.

According to a sixth aspect of the invention, when the vehicle data stored in the vehicle-mounted device is changed, the stored vehicle data is updated. If the amount of soot in the exhaust gas is different from the previous one during a vehicle inspection, the data will be updated. As a result, it is possible to receive a determination about traffic in a state closer to the current correct vehicle characteristics.

According to a seventh aspect of the present invention, when the management device communicates with the vehicle-mounted device via the roadside antenna and detects that the vehicle has entered the specific area, a signal is sent to the vehicle-mounted device to notify the vehicle of entering the specific area. It is characterized by transmitting and recording a signal from the vehicle-mounted device that responds to this. If you do this,
It can be used as proof that both the vehicle side and the management device side have confirmed that the vehicle has entered the specific area.

The invention of claim 8 is characterized in that the record of the response signal from the vehicle-mounted device is used as data for collecting the fee. According to this, it is possible to avoid occurrence of trouble when the fee is collected later.

The invention of claim 9 is characterized in that when a vehicle charges for entering a specific area, the charging system is transmitted to the vehicle-mounted device. With this configuration, it is possible to know where in the charging system the own vehicle falls.

According to a tenth aspect of the present invention, when it is detected that the vehicle has approached a specific area up to a predetermined distance by communication with the vehicle-mounted device via a roadside antenna, the vehicle-mounted device is informed accordingly. And This makes it possible to determine in advance whether the vehicle should proceed as it is or whether it is better to take a detour. In the case of restriction of inflow, it is preferable to notify the driver immediately, and therefore, notification by voice is preferable.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, one embodiment of the present invention will be applied to the case of collecting a toll according to the amount of exhaust gas of an automobile (vehicle) entering an urban area and refer to the drawings. While explaining. Here, the amount of exhaust gas (hereinafter referred to as exhaust gas amount) does not refer to the exhaust amount of an automobile engine, but refers to the amount of carbon monoxide, hydrocarbons, nitrogen oxides, particulate matter, and the like.

First, an example of the toll collection system of this embodiment will be described with reference to the map of the central area shown in FIG. The map shows three loops R1 to R centering on the city center
3 is drawn, and the area surrounded by the outer loop R3 is an area where a toll corresponding to the amount of exhaust gas is collected. And, the closer to the area surrounded by the loop R2 inside the loop R3, the area surrounded by the loop R3 inside the loop R2, that is, the closer to the center of the city,
The tolls are set to increase in order. In addition, the toll fee in each area is changed according to the time when the area enters.

In addition, the area surrounded by the central loop R1 is an area in which only the traveling of an electric vehicle is allowed, and a vehicle powered by an internal combustion engine such as a gasoline engine or a diesel engine, an internal combustion engine and electricity It is prohibited to enter hybrid type vehicles that use both. It should be noted that a toll is not charged to a car owned by one having an address inside the loop R3, and a car owned by one having an address in the area surrounded by the loop R1 is not charged even if it is electric. Is allowed.

A schematic structure of an apparatus used in such a toll collection system is shown in FIGS. 3 to 6. First of all, as shown in FIG.
A pole 1 is installed, and a road machine 2 is installed above the pole 1.
Is installed. On the other hand, an in-vehicle device 4 is mounted on an automobile 3 traveling on a road.

The road machine 2 is provided on each road that intersects with the loops R1 to R3, at the intersecting position (the boundary of the restricted area). Then, the roadside machine 2 communicates with the vehicle-mounted machine 4 to acquire various vehicle data such as the type of the automobile 3 and the exhaust gas amount, and based on the vehicle data, makes a determination regarding the vehicle traffic, that is, the exhaust gas amount and the time. It collects tolls according to the regulations and gives notices that vehicles other than electric vehicles are prohibited from further entering.

On the road on which the road machine 2 is installed, in order to detect a vehicle that has illegally entered the restricted area, a road machine for inspection is installed separately from the road machine 2 installed on the boundary of the restricted area. (Not shown). The road machine for inspection is provided at a position where the road machine 2 enters the restricted area and passes, for example, the first intersection.

Now, the communication between the on-road equipment 2 and the on-vehicle equipment 4 is carried out by a short-range communication (DSRC).
system). The on-road device 2 constitutes a base station side communication device of the short range communication system, and the on-vehicle device 4 constitutes a mobile station side communication device.

3 and 5 show the electrical construction of the toll collection system. FIG. 3 shows an electrical configuration of the vehicle-mounted device 4. The vehicle-mounted device 4 includes an out-vehicle unit 5 and an in-vehicle unit 6. The out-vehicle unit 5 communicates with the on-road unit 2 via the control unit 7 and the antenna 8 for external communication, and the communication unit 11 for communicating with the in-vehicle unit 6 via the antenna 10 for internal communication. The flash memory 12 as an erasable read-only memory is provided, and as shown in FIG. 4, the flash memory 12 is provided, for example, in the sealing portion 13a of the rear license plate 13 of the automobile 3.

The control unit 7 of the outboard motor 5 includes a CPU and an RO.
It is composed of a microcomputer including M and RAM, and various application programs are stored in the ROM. In addition, the flash memory 12
2 functions as a storage unit for storing vehicle data, and FIG.
The vehicle verification description items of the automobile 3 shown in (a) and the exhaust gas inspection data shown in FIG. It should be noted that the exhaust gas inspection data is updated so that the latest data is obtained by inputting the results of the exhaust gas inspection that is carried out each time a vehicle inspection is performed. A reader / writer device for transmitting is provided.

The in-vehicle unit 6 includes a control unit 14, a communication unit 16 for communicating with the out-of-vehicle unit 5 via an antenna 15, a display unit 17 with a touch panel made of liquid crystal or the like as a notification unit, and a speaker 18 as a notification unit. The IC card interface 19 and the like are provided. The control unit 14 includes a microcomputer like the control unit 7 of the outboard motor 5, and displays the data transmitted from the outboard motor 5 on the display 17 or outputs the sound from the speaker 18 as voice. IC
The card interface 19 is an IC owned by the user.
The card 20 is used to process various information. The IC card 20 has a function as a cash card (prepaid precard), and can be deposited by using a dedicated machine installed in a bank or the like.

FIG. 5 shows an electric configuration on the management side of the toll collection system including the on-road unit 2. The on-road unit 2 includes a control unit 21 including a microcomputer, an outboard unit 5 of an on-vehicle unit 4, and an antenna ( A communication unit 23 that communicates via a roadside antenna 22 and a mobile telephone module 25 as a data communication unit that communicates with a management device 24 of a management center.
It has and.

The power source of this on-road unit 2 is a solar battery 26, and a storage battery 2 that is charged by the surplus power of the solar battery 26.
7 and a DC power supply circuit 29 for converting the commercial AC power supply 28 into DC, and switching of these three power supplies is performed by a switching device 30.

The management device 24 includes a control unit 31 including a computer system and a storage unit 3 forming a database.
2, a communication unit 32 connected to the mobile telephone network 33, a terminal 35 including a personal computer as an input unit, a Web server 34
And so on. The storage unit 32 stores an inflow regulation map database, an inflow regulation vehicle type database, a response vehicle database, a toll collection vehicle database, a toll-uncollected vehicle database, an entry-canceled vehicle database, a violated vehicle database, a resident vehicle database within the regulation, and the like. Has been done. What these databases look like will be discussed in turn later.

The inflow regulation map database has a layer structure as shown in FIG. 7, and is composed of a layer L1 of map data, a layer L2 of roadside position data, a layer L3 of inflow regulation area data, and the like. There is. Among them, for example, the layer L1 is set for each exhaust gas amount, and the layer L2 is set for each exhaust gas amount and time zone, and toll data is set therein. Then, when a certain vehicle enters the inflow restriction area, the tolls to be imposed on the certain vehicle are layers L1 to L3 according to the amount of exhaust gas of the vehicle and the time zone.
It can be obtained by overlapping. Input of data for creating these is performed by the terminal 35.
Is performed using.

The Web server 33 is connected to the Internet 34, and anyone can connect his / her terminal 38 to the Web server 33 to access the home page of the management center. Then, by accessing the homepage of the management center, it is possible to know the inflow regulation area of the city and the toll collection system. In this case, since the inflow regulation database has a layered structure, the toll fee is displayed over the map, the position of the road machine 2 is displayed on the map, and the amount of exhaust gas of the owned vehicle is changed. The toll fee can be displayed on the map.

Further, by adopting a layered structure of the inflow regulation map database, the regulation conditions can be changed due to the holding of an event, the regulation area can be changed, the toll fee can be changed, and the roadside machine 2 can be newly installed. If you do
It can be handled simply by changing area data, toll data, or roadside machine position data.

When the control unit 31 transmits data to the roadside device 2, the data to be transmitted is sent from the communication unit 34 to the mobile communication network 32 together with the ID data for identifying the roadside device 2.
Send to. Then, the base station 39 of the mobile communication network 32 transmits the data transmitted from the management device 24 side to the mobile telephone module 25 of the roadside device 2. The mobile telephone module 25 of the roadside device 2 receives the radio signal transmitted from the base station 39, and the ID data in the received data is I of the roadside device 2.
When it matches with D, the response signal is transmitted to the base station 39, and the received data is received and transferred to the control unit 21. Then, the control unit 21 stores the transferred data in the ROM (not shown) and transmits the data to the vehicle-mounted device 4 of the automobile 3.

On the other hand, the roadside device 2 transmits the data acquired from the vehicle-mounted device 4 from the mobile telephone module 23 to the management device 24 via the mobile telephone network 33. In this case, the mobile telephone module 23 uses the I
I have D and when I send the data to the mobile telephone network to 32, I
Send including D data.

Next, the operation of the above structure will be described with reference to FIG. The driver of the automobile 3 inserts his / her IC card 18 into the IC card interface 19 when traveling on the road. Then, it is assumed that the user runs on the road toward the city center and enters the area surrounded by the loop R3.

The roadside machine 2 periodically issues a call signal in order to detect an automobile. On the other hand, the outboard motor 5 of the automobile 2 is always in a waiting state for reception. When the automobile 2 enters the area surrounded by the loop R3, the antenna 8 of the outboard motor 5 receives the call signal transmitted from the roadside machine 2 installed at the position corresponding to the entrance of the area.

The call signal received by the antenna 8 is sent to the control unit 7 via the communication unit 9. Then, the control unit 9 uses the application recognition data included in the call signal to execute the application program, in this case,
Select an inflow control program. Then, the control unit 9
When the execution of the inflow regulation program is started, first, the control unit 7 outputs a signal in response to the call signal to the communication unit 9, and also from the flash memory 12, the exhaust gas amount, the vehicle number which is the vehicle ID, the vehicle type, the ownership. Vehicle data such as a person's address and name is read out and transmitted from the antenna 8 via the communication unit 9.

The radio signal transmitted from the antenna 8 of the outboard motor 5 is received by the antenna 22 of the on-road device 2, and the signal is sent to the control unit 21 via the communication unit 23. Then, the control unit 21 of the on-road device 2 uses the vehicle data sent from the communication unit 23 together with the ID data in the mobile telephone module 23.
Send from

The vehicle data and the ID data of the roadside device 2 transmitted from the mobile telephone module 23 are received by the base station 39 and transmitted by the communication unit 34 of the management device 24 via the mobile telephone network 33. Then, the communication unit 34 transfers the received vehicle data to the control unit 31. Control unit 31
Refers to the inflow regulation database to determine the exhaust gas amount of the vehicle 3, the time and the toll to be collected from the position of the roadside machine 2 (determination regarding vehicle traffic), and what is the vehicle of each exhaust gas amount in each area? Get a toll fee (billing system). Then, the control unit 31 sends search data including the toll data to be collected and the toll system data, which is the result of the determination, to the mobile telephone network 33 via the communication unit 34.

The search data transmitted from the base station 39 of the mobile telephone network 33 is stored in the mobile telephone module 23 of the roadside device 2.
The control unit 21 receives the data received by the mobile phone module 23 via the communication unit 23 from the antenna 2 and receives the data.
Send from 2. When the antenna 8 of the vehicle-mounted device 4 receives the radio signal of the search data transmitted from the roadside device 2, the control unit 7 stores the received data in the RAM (not shown),
Then, a signal indicating that the search data has been received is transmitted to the in-vehicle unit 6 and the on-road unit 2.

When the control unit 14 of the in-vehicle unit 6 receives the signal indicating that the search data is received from the out-of-vehicle unit 5, it transmits a data request signal to the out-of-vehicle unit 5, and in response thereto, the control unit 7 of the out-of-vehicle unit 5.
Transfers the search data to the in-vehicle unit 6 together with the vehicle data of the own vehicle. Then, the control unit 14 of the in-vehicle unit 6 displays the search data transferred from the out-of-vehicle unit 5 together with the vehicle data of the own vehicle on the display unit 17 and outputs the sound through the speaker 18 to the out-of-vehicle unit 5. A signal indicating that the transfer has been completed is transmitted. The control unit 7 of the outboard motor 5 deletes the search data stored in the RAM (not shown) based on the reception of the transfer completion signal.

Now, according to the search data displayed on the display unit 17, the driver of the automobile 3 advances into the inflow regulation area and recognizes the toll charged in that case, and at the same time It is possible to recognize what kind of toll position the toll charge has in comparison with other cars. Then, the driver of the automobile 3 determines whether or not to enter the inflow restriction area, and inputs the result from the touch panel of the display device 17. The determination result of the driver on the touch panel is sent from the in-vehicle unit 6 to the out-of-vehicle unit 5, and from the out-of-vehicle unit 5 to the on-road unit 2.

Here, when the driver pays a toll and performs an operation to enter the inflow control area, the control unit 14 causes the IC card 20 to operate by the IC interface 19.
Perform the operation to deduct the toll from. Thereafter, the control unit 14 transmits a signal indicating that the in-vehicle unit 5 enters the inflow regulation area and a signal indicating that the toll has been collected, and the out-vehicle unit 5 transmits the signal to the on-road unit 2. This time,
When the cash amount of the IC card 20 is insufficient, a signal indicating that the inflow regulation area is entered and a signal indicating that the toll is not collected are transmitted from the outboard motor 5 to the roadside motor 2. On the other hand, when the driver of the automobile 3 performs an operation to the effect that he / she does not enter the inflow restriction area, a signal to that effect is transmitted from the outboard motor 5 to the roadside motor 2 in the same manner as described above.

The above signals are transmitted from the outboard motor 5 to the roadside device 2.
Is further transmitted to the management device 24 from the roadside device 2. The management device 24 records a response signal indicating that the search data transmitted from the roadside machine 2 has been received in the response vehicle database, and also stores it in the toll collection vehicle database, the toll non-collection vehicle database, or the entry cancellation vehicle database. .

When the automobile 3 enters the inflow restriction area as it is, the outboard motor 5 communicates with an unillustrated roadside machine for inspection and transmits the vehicle number of the own vehicle to the roadside machine for inspection. The on-road vehicle for inspection transmits the vehicle number received from the automobile 3 that has entered the inflow restriction area to the management device 24, and the control unit 31 of the management device 24 stores the vehicle number in the entry cancellation vehicle database. If the vehicle is searched and stored, it is stored in the infringing vehicle database because the vehicle is a violating vehicle for which the toll has not been paid.

When the automobile 3 enters the inflow regulation area of the loop R1, the indicator 1 of the in-vehicle unit 6 is operated in the same manner as above.
Search data is displayed in 7. In this case, the toll and its system are displayed in the same manner as described above, and a message indicating that the inflow of vehicles other than the electric vehicle is prohibited is displayed. Then, looking at this display, vehicles other than the electric vehicle stop entering the area surrounded by the loop R1. Vehicles other than electric vehicles that have entered the area of loop R1 ignoring this inflow regulation are stored in the violating vehicle database of the management device 24. It should be noted that the above-mentioned regulations are not imposed on vehicles registered in the in-regulation vehicle database, which is a database of vehicles having addresses inside the loops R1 and R3.

The owner of the vehicle registered in the violator database will be notified by the management center at a later date that the vehicle has been violated, and appropriate measures will be taken. In this case, a signal indicating that the search data has been received from the automobile is sent to the management device 24.
Since it is recorded in the database of, it is possible to prevent troubles related to the existence of violation.

The present invention is not limited to the embodiments described above and shown in the drawings, but the following expansions and modifications are possible. The payment of the toll is not limited to the prepaid method using the IC card 20, and may be a method of withdrawing from the savings account at a later date. The roadside machine is provided outside the inflow restriction area, separated by a predetermined distance from the area, and the roadside machine in front of this area transmits a signal indicating that the inflow restriction area (specific area) has approached the onboard machine to a predetermined distance,
The driver may be informed by voice or the like. The on-road device 2 may have the function of the management device by having the toll data according to the amount of exhaust gas and the time regarding the inflow restriction area. The on-road device 2 may be composed of only the antenna 8. The in-vehicle device 4 may be configured to be able to access the web server of the management device of another municipality via the roadside device 2 and the web server 36 of the management device 24. By doing so, it is possible to know in advance the traffic regulation, the toll system, etc. of the city where the automobile 3 is going to travel.

The vehicle data read from the vehicle-mounted device 4 by the roadside device 2 is not limited to the exhaust gas amount, the vehicle number, etc., and may be read as appropriate according to traffic regulations. IC
The vehicle number, insertion time, withdrawal time, etc. may be recorded in the IC card 20 by the card interface 19. By doing so, the usage time of the automobile 3 can be managed by reading the record of the IC card 20. At this time, if the position data of the car navigation device is written, it is possible to know which vehicle and where the vehicle has traveled.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, showing a communication procedure between respective devices.

FIG. 2 is a diagram showing the content of data stored in an in-vehicle unit.

FIG. 3 is a block diagram showing an electrical configuration of an in-vehicle device.

FIG. 4 is a front view of an automobile license plate.

FIG. 5 is a block diagram showing the electrical configuration of the management device side.

FIG. 6 is a perspective view showing a road machine.

FIG. 7 is a diagram for explaining a layer structure of a map.

FIG. 8 is a diagram for explaining an outline of inflow regulation.

[Explanation of symbols]

In the figure, 2 is a roadside device, 3 is an automobile (vehicle), 4 is an in-vehicle device,
5 is an out-of-vehicle unit, 6 is an in-vehicle unit, 17 is an indicator (notifying means),
Reference numeral 18 is a speaker (notifying means), 22 is an antenna (roadside antenna), and 24 is a management device.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ryu Kimura             1-1, Showa-cho, Kariya city, Aichi stock market             Inside the company DENSO F-term (reference) 3E027 EA01 EB10 EC03 EC05                 5H180 AA01 BB04 BB05 BB12 EE10

Claims (10)

[Claims] 1. An in-vehicle device provided in a vehicle, a roadside antenna provided on a road side for communicating with the in-vehicle device, and a management device for processing data received by the roadside antenna, The machine stores vehicle data that is basic data for making a decision regarding vehicle traffic, and the management device makes a decision regarding vehicle traffic based on the vehicle data acquired from the vehicle-mounted device via the roadside antenna. Vehicle traffic management system characterized by. 2. The vehicle according to claim 1, wherein the determination regarding the vehicle traffic is for charging a vehicle entering a specific area according to the amount of exhaust gas thereof. Traffic management system. 3. The vehicle traffic management system according to claim 1, wherein the management device transmits the determination result to the vehicle-mounted device via the roadside antenna. 4. The vehicle traffic management system according to claim 3, wherein the vehicle is provided with informing means for informing the determination result transmitted from the management device to the vehicle-mounted device. 5. The vehicle traffic management system according to claim 1, wherein the storage unit for storing the vehicle data of the vehicle-mounted device is provided in a sealing unit of a license plate of the vehicle. . 6. The vehicle traffic management system according to claim 1, wherein when there is a change in vehicle data stored in the vehicle-mounted device, the stored vehicle data is updated. 7. The signal, when the management device detects that the vehicle has entered a specific area through communication with the vehicle-mounted device via the roadside antenna, notifies the vehicle-mounted device of the entry into the specific area. 7. The vehicle traffic management system according to claim 2, wherein a signal from the vehicle-mounted device that transmits the message is recorded. 8. The recording of the response signal from the vehicle-mounted device is data for charge collection.
Vehicle traffic management system described. 9. The vehicle traffic management system according to claim 7, wherein when the vehicle charges for entering a specific area, the management device transmits a charging system to the vehicle-mounted device. 10. The management device, when detecting that the vehicle has approached the specific area to a predetermined distance by communication with the vehicle-mounted device via the roadside antenna,
10. The vehicle traffic management system according to claim 1, wherein the vehicle traffic management system transmits a message to that effect to the vehicle-mounted device.