JP3530933B2 - Traffic controller control system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic controller control system and method used for constructing a so-called smart way.

[0002]

2. Description of the Related Art As we enter the new century, it is required to promote the development and utilization of advanced technology in the field of advanced information and telecommunications to lead a new economic society.

Even in road traffic, an intelligent road traffic system (ITS: Intelligent Tra
nsport Systems), research and development and commercialization are progressing, and by the accurate introduction and utilization of that system,
To radically solve social problems such as traffic accidents, traffic congestion, and increase in environmental load, and to enhance social and economic activities through road traffic to enrich people's lives. Is expected. Therefore, it is required to realize "intelligent road (smart way)" as a road in the 21st century that integrates advanced ITS technology and serves as a receiver for advanced road traffic.

[0004]

Here, the smart way is a road that allows various kinds of information to be exchanged with various users such as cars, drivers, and pedestrians. It will be the basis for the development of various ITS services, such as improving convenience, convenience, and environmental conservation by ensuring smooth traffic, and will also be the basis for creating a comfortable and prosperous life and society. Specifically, smart ways are roads that incorporate necessary facilities such as road-vehicle communication systems, sensors, and optical fiber networks, and enable these facilities to be used to provide various ITS services. It is a road that has an integrated structure (various rules for supporting common use of information and free exchange (open platform)). Smart Way is ITS
It is equipped with optical fibers that are the backbone of ITS and provides the field for ITS realization, which is a literally essential infrastructure and is considered to hold the key to ITS promotion.

The present invention has been made as part of the realization of such a smart way, and its purpose is to detect vehicles in a priority traffic state such as an emergency vehicle and guide them safely. The purpose of the present invention is to provide a system that can be utilized to support the sophistication of emergency vehicle management and the sophistication of road management.

[0006]

In order to achieve the above object, according to a first main aspect of the present invention, a traffic controller provided on the roadside of a road and including a signal and a road user hold the traffic controller. Road user information receiving means for receiving information of the road user from a transmitter, and priority traffic judging means for judging whether or not the road user is in the priority traffic state based on the information received by the receiving means. And a traffic controller control means for controlling the traffic controller based on the judgment of the priority traffic judging means, wherein the transmitter judges whether the road user is in the priority traffic state. There is provided a control system for a traffic controller, characterized in that a part or all of the above information is obtained by wireless communication with a recording medium held by a road user at the time of using the road .

[0007] According to such a configuration, it is possible to detect vehicles such as emergency vehicles that are in a priority traffic state, and to guide them safely, and to improve emergency vehicle management and road management. It can be used to support the conversion.

According to one embodiment of the present invention, the road user's information received by the user information transmitting means includes the position information of the road user, and the traffic controller control means gives priority traffic. Based on the position information of the road user in the state, the traffic controller on the traveling route of the road user is controlled at a predetermined timing so that the road user can preferentially travel. Here, the road user information received from the road user includes route information that the road user travels, and the traffic control command means, based on the route information, the traveling route of the road user. It is preferable that the above traffic controller be controlled so that the road user can preferentially pass at a predetermined timing. Further, in this case, the route information evaluation means for evaluating the route information based on the position information received from the road user, and the optimum progress when the route information evaluation means determines that the route information is not optimum. It is desirable to include a traveling route calculating means for calculating a route and a traveling route information transmitting means for transmitting the traveling route calculated by the traveling route calculating means to the road user.

According to another embodiment, the road user information received from the road user includes destination information for the road user, and the system further includes the road user. And a traveling route information transmitting means for transmitting the traveling route computed by the traveling route computing means to the road user. .

Further, according to another embodiment, the transmitter held by the user is given priority by the road user.
A part of the information for determining whether the recording medium is
It is acquired by wireless communication with the transmitter , and this transmitter determines whether the road user is in a priority traffic state.
Connected to a storage means that stores some of the information for
The priority traffic determination means is such that the transmitter uses the road.
Information acquired by wirelessly communicating with the
Based on the information stored in the storage means connected to the transmitter of
Based on this, it is determined whether the road user is in a priority traffic state.
To do. In this case, the transmitter has a road user status writing unit that detects whether the road user is in a preferential traffic state and writes information on the state of the road user in the storage unit.

According to another embodiment, the transmitter of the road user is preferably a contactless ID tag.

According to another embodiment, the recording medium
Is attached to the vehicle and stores the vehicle information of this vehicle
Vehicle side non-contact ID tag and when the driver of the vehicle uses the road
Information that is retained and indicates that this vehicle is in priority traffic
Including a driver-side non-contact ID tag to be stored,
The transmitter wirelessly communicates with the vehicle-side non-contact ID tag and the driver-side non-contact ID tag, respectively, and acquires the information stored therein .

According to another embodiment, the system further comprises warning means for issuing a warning to road users other than the road users in the priority traffic state.

According to a second main aspect of the invention, provided on the roadside of the road, there is provided a method of controlling a traffic control device comprising a signal, transmitter and road interest to road users hold
Wireless communication with the recording medium held by the road user at the time of use
By determining whether the road user is in a priority traffic state
This transmitter acquires some or all of the information to do
From the process and the transmitter, the road user gives priority traffic
Receiving a part or all of the information for determining whether the road condition, and determining whether the road user is in a preferential traffic state, based on the information received in the step,
And a step of controlling the traffic controller based on the judgment of the step, the method of controlling the traffic controller is provided.

With such a configuration, it is possible to obtain a control method applicable to the control system.

Further features of the present invention and remarkable effects will be clearly understood by those skilled in the art by considering the following embodiments together with the accompanying drawings.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a conceptual diagram for explaining this one embodiment, in which a road user 1 in a priority traffic state, an ambulance in this example, is on a city road 2 at a destination A.
It shows a state of traveling toward.

In the traveling direction of the road user 1, for example, a roadside device 4 which is attached to the gate pillar 3 and can communicate with the road user 1 is provided. Further, this road user 1 is assumed to travel on a predetermined route indicated by B in the figure in order to reach the destination A, and on this route B, an intersection C
And intersection D exists. At the intersections C and D, first and second traffic controllers 6 and 7 each including a traffic light are provided.

The roadside device 4 and the first and second traffic controllers 6 and 7 are connected to a traffic controller control system 9 via a public line network 8, for example. Although not shown in FIG. 1, innumerable roadside devices 4 and traffic controllers 6 and 7 of the same type are installed on the city road 2. Further, the traffic controllers 6 and 7 are not limited to the above-mentioned traffic lights, but include various information display boards and traffic signs.

FIG. 2 shows the road user 1, the roadside device 4,
It is a schematic block diagram which shows the system configuration of the traffic controllers 6 and 7 and the traffic controller control system 9.

First, the road user 1 is provided with a roadside device 4
The vehicle-mounted device 11 capable of wirelessly communicating with is mounted. The vehicle-mounted device 11 is fixed in the ambulance as the road user 1, stores the vehicle information (vehicle inspection information, etc.) of the road user 1, and transmits the information to the roadside device 4. In addition, it is possible to receive information from the roadside device 4.

In addition, the ambulance (road user 1),
A contactless ID tag 12 capable of wireless communication with the vehicle-mounted device 11.
Is installed. This non-contact type tag 12 is, for example,
A driver who drives this ambulance brings it into the ambulance at the time of an emergency dispatch, and indicates the affiliation of this ambulance.
In addition to D14, a priority traffic code 15 indicating the priority traffic status of this ambulance is stored. This priority pass code 1
5 is, for example, a code for indicating the type of police vehicle, fire engine vehicle, ambulance vehicle, etc. and for identifying the priority, and the contactless ID at the base etc. of the road user 1 at the time of emergency dispatch.
It is stored in the tag 12.

Here, as shown in FIG. 3, the non-contact type ID tag 12 is a nonvolatile memory 16 (EEP-ROM).
Which is a storage medium including a sensor 17 (reader / writer) for the non-contact ID tag 12 provided in the vehicle-mounted device 11
Power is supplied by radio waves 18 (high frequency) from the device to operate. That is, the radio wave supplied from the sensor 17 is received by the antenna 19 and transmitted to the power supply unit 20 so that the electric power used by the non-contact ID tag 12 is supplied. As a result, the signal processing unit 21 sends the information (the ID 14 and the priority code 15) stored in the memory 16 to the transmitting / receiving unit 22 and transmits the information from the antenna 19 to the vehicle-mounted device 11 side.

As the non-contact type ID tag 12, other than the one shown in FIG. 2, for example, a patient ID tag 24.
May be installed. In this patient ID tag, the ID and the priority code indicating the patient are the same as the above, for example, the rescuer who is on board this ambulance is in the in-vehicle device 11
It is stored by writing using the sensor 17 of FIG. By doing so, as the information of the road user 1, not only the information of the vehicle but also the patient etc.
It is also possible to transmit the information on the event causing the priority passage to the vehicle-mounted device 11 side.

Then, the vehicle-mounted device 11 uses the sensor 17 to detect the ID 14 from the contactless ID tags 12 and 24.
Also, the priority passage code 15 is received, the various information received by the transmitting / receiving unit 26 and the information combining unit 27 is processed / combined, and is transmitted to the roadside device 4 side through the external communication unit 28.

Further, the vehicle-mounted device 11 has a structure shown in FIGS.
As shown in, the navigation device 29 is connected. This navigation device 29 is used by the road user 1
It has a function of calculating an optimum route from the base to the destination A and presenting it to the driver or the like through the display 30 or the like. The vehicle-mounted device 11 uses the navigation device 29.
The route information calculated in (3) is combined with other information by the input / output processing unit 31 and the information combining unit 27, and is transmitted to the roadside device 4 side. As will be described later, when it is determined that the route calculated above is not optimal, the optimal route is transmitted from the traffic controller control system 9 side to the vehicle-mounted device 11. In this case, the received information is set in the navigation device 29 through the reception information processing section 32 and the input / output processing section 31.

On the other hand, the roadside device 4 receives the road user information from the vehicle-mounted device 11 of the road user 1 as shown in FIG.
And the information received from the traffic controller control system 9 side to the road user 1
And an information providing unit 35 that provides the vehicle-mounted device 11.

Further, the traffic controller control system 9 is
A user authentication unit 37 that authenticates the road user 1 based on the information received from the roadside device 4, and a road event information acquisition unit 3 that acquires detailed information such as road congestion and accidents from the outside.
8, a priority passage determination unit 39 that determines whether the user 1 is in the priority passage state based on the user information, and the user 1 advances based on the navigation information received from the road user 1. A navigation information evaluation unit 40 for evaluating whether or not the route to be attempted is optimum based on the road event and the like, and the navigation information evaluation unit 40.
In the case where it is determined that the route included in the navigation information is not optimum, a traveling route calculation unit 41 that calculates a new route, and the traveling route calculated by the traveling route calculation unit 41 are transmitted to the road user 1 via the roadside device 4. And a traffic controller controller 43 that issues a control command to the traffic controllers 6 and 7 based on the travel route of the road user 1, and a priority traffic state based on the above. And a warning unit 44 that issues a warning to other vehicles that are not present.

Next, the function of each of the components 37 to 44 will be described together with the control procedure of the system 9 with reference to the flowchart of FIG. Note that reference numerals S1 to S9 in the drawing are reference numerals indicating processing procedures, and coincide with step numbers (steps S1 to S9) in the following description.

First, the traffic controller control system 9 receives road user information and navigation route information from the roadside device 4 (step S1). Then, step S
In step 2, the user authentication unit 37 authenticates the road user 1. This authentication is performed in order to prevent unauthorized use of the system 9, and it is confirmed whether the road user 1 (or a passenger or a loaded cargo) is registered in advance.

When the authentication of the road user 1 is completed, the priority passage judging section 39 makes the ID included in the road user information.
By analyzing 14 and the priority code 15, it is judged whether or not the road user 1 is in the priority traffic state (step S3). In this example, the priority code 15 is a predetermined character string so as to be able to identify the event in which the priority traffic state has occurred, but is not limited to this. In addition, in this embodiment, when a road user in another priority traffic state on the road 2, for example, a fire engine is running, the priority thereof can be determined. (Step S4).

Next, the navigation information evaluation section 40
Based on the navigation route information received from the road user 1 and external information such as road congestion and accidents received by the road event acquisition unit 38, the route that the road user 1 is going to travel (shown in FIG. 1). It is evaluated whether the route B) is optimal (step S5).

When it is determined that the navigation route information received from the user 1 has no problem, the traffic controller control unit 43 determines the traffic controller 6 based on the traveling route of the road user 1. , 7 is issued (step S6). As a result, the intersections C and D are set at a predetermined timing according to the progress of the road user 1.
The first and second traffic controllers 6 and 7 installed in the vehicle are controlled so that the road user 1 can reach the destination A smoothly.

On the other hand, when a traffic obstacle such as a traffic jam or an accident exists on the navigation route B and it is evaluated that the route is not optimal, the traveling route calculation unit 41 replaces the new route ( For example, the third and fourth shown in FIG.
The route G) passing through the intersections E and F is calculated (step S7). Then, the traveling route transmission unit 42 transmits the route G newly calculated in this way to the road user 1 via the roadside device 4 (step S
8), the traffic controller control unit 43 issues a control command to the traffic controllers 6 and 7 based on the new traveling route (step S9). Thereby, the road user,
A new route can be confirmed by the navigation device, and a traffic controller (not shown) on that route
Is controlled to give priority to the road user 1 at a predetermined timing.

Based on the above, the warning unit 44 also warns other vehicles or the like that are not in the priority traffic state regarding the presence of the priority traffic vehicle by means of information providing means such as electronic bulletin boards or radio. ing.

The present invention is not limited to the above-mentioned one embodiment, but can be variously modified without changing the gist of the invention.

For example, in the above-described embodiment, the vehicle-mounted device 11 is configured to communicate with the non-contact ID tags 12 and 24 to acquire and combine information, and to transmit the information to the roadside device 4. , But is not limited to this. For example,
The vehicle-mounted device 11 itself may be composed of a non-contact type ID tag. Further, instead of the non-contact type ID tags 12 and 24, an IC card inserted in the vehicle-mounted device 11 may be used.

[0038]

According to the configuration described above, it is possible to detect a vehicle in a priority traffic state such as an emergency vehicle and to guide these vehicles and other vehicles safely. It is possible to provide a system that can be used to support the sophistication of management.

[Brief description of drawings]

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

FIG. 2 is a system configuration diagram of a traffic controller control system.

FIG. 3 is a functional block diagram for explaining the function of the contactless ID tag.

FIG. 4 is a flow chart showing the flow of processing of the same.

[Explanation of symbols]

1 ... Road users 2 ... Road 3 ... Gate-shaped pillar 4 ... Roadside device 6.7 ... First. Second traffic controller 8 ... Public network 9 ... Traffic controller control system 11 ... On-board device 12 ... Non-contact ID tag 14 ... ID 15 ... Priority pass code 16 ... Memory 17 ... Sensor 18 ... radio wave 19 ... Antenna 20 ... Power supply circuit 21 ... Signal processing circuit 22 ... Transceiver circuit 24 ... ID tag 26 ... Transceiver 27 ... Information combiner 28 ... External communication unit 29 ... Navigation device 30 ... Display 31 ... Input / output processing unit 32 ... Reception information processing unit 34 ... User information receiver 35 ... Information providing department 37 ... User Authentication Department 38 ... Road event information acquisition unit 39 ... Priority traffic judging section 40 ... Navigation Information Evaluation Department 41 ... Traveling route calculation unit 42 ... Traveling path transmitter 43 ... Traffic control unit 44 ... Warning section

Continuation of the front page (56) Reference JP 2000-163699 (JP, A) JP 2000-259986 (JP, A) JP 11-120494 (JP, A) JP 10-134299 (JP, A) ) JP-A-10-281783 (JP, A) JP-A-9-223296 (JP, A) JP-A-6-301866 (JP, A) JP-A-10-74299 (JP, A) JP-A-1- 281599 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G08G 1/087 G08G 1/09 G08G 1/123-1/13 G01C 21/00

Claims (16)

(57) [Claims] 1. A traffic controller including a traffic signal , which is provided on the roadside of a road, and a road user information receiving means for receiving information of the road user from a transmitter held by the road user; Priority traffic judging means for judging whether or not the road user is in the priority traffic state based on the information received by the means, and a traffic controller for controlling the traffic controller based on the judgment of the priority traffic judging means. The transmitter includes a control unit, and the transmitter transmits a part or all of information for determining whether or not the road user is in a preferential traffic state.
A control system for a traffic controller, which is obtained by wirelessly communicating with a recording medium held when a road is used . 2. The system according to claim 1, wherein the road user information received by the user information transmitting means is:
The traffic controller control means includes position information of the road user, and the traffic controller control means uses the traffic controller on the traveling route of the road user based on the position information of the road user in the priority traffic state. A control system for a traffic controller, characterized in that it is controlled at a predetermined timing so that an occupant can pass through with priority. 3. The system according to claim 2, further, the road user information received from the road user includes route information that the road user follows, and the traffic control command means is configured to control the route. A control system for a traffic controller, wherein the traffic controller on the traveling route of the road user is controlled based on the information so that the road user preferentially travels at a predetermined timing. 4. The system according to claim 3, further comprising: route information evaluation means for evaluating route information based on position information received from the road user; and the route information evaluation means does not optimize the route information. When it is determined that the traveling route is calculated, an optimal traveling route is calculated, and a traveling route information transmitting unit that transmits the traveling route calculated by the traveling route calculating unit to the road user is included. Control system for traffic controller. 5. The system according to claim 2, wherein the road user information received from the road user includes destination information for the road user, and the system further includes: Having a traveling route calculating means for calculating an optimum traveling route based on the position information and the destination information, and a traveling route information transmitting means for transmitting the traveling route calculated by the traveling route calculating means to the road user. A control system for a traffic controller. 6. The traffic controller control system according to claim 1 , wherein the road user has priority over the transmitter held by the user.
Some of the information used to determine whether you are in a traffic condition is described above.
It is acquired by wirelessly communicating with the recording medium, and the road user has priority traffic to this transmitter.
And storing means a part of which is stored is connected to the information for determining whether the priority traffic determination means, serial the transmitters road users
Information obtained by wireless communication with the recording medium and this transmission
Based on the information stored in the storage means connected to the machine
And determine whether the road user has priority traffic
A control system for a traffic controller, which is characterized in that 7. The traffic controller control system according to claim 6, wherein the transmitter detects whether the road user is in a preferential traffic state , and the road user is stored in the storage means. A control system for a traffic controller, characterized in that it has a road user status writing means for writing the status information. 8. The control system for a traffic controller according to claim 1, wherein the transmitter of the road user is a contactless ID tag. 9. The system according to claim 1, wherein the recording medium is mounted on a vehicle and is stored in the vehicle.
The vehicle-side non-contact ID tag that stores information and the driver of the vehicle
Hold this at the time of using the road and make sure that this vehicle has priority traffic
And a driver-side non-contact ID tag that stores information indicating
The control of the traffic controller is characterized in that the transmitter wirelessly communicates with a vehicle-side non-contact ID tag and a driver-side non-contact ID tag to obtain information stored therein. system. 10. The traffic controller according to claim 1, further comprising warning means for issuing a warning to road users other than the road users in the priority traffic state. Control system. 11. A method for controlling a traffic controller including a signal, which is provided on the roadside of a road, comprising: a transmitter held by the road user and the road user when the road is used.
By wirelessly communicating with a recording medium held by the
Information for determining whether the user has priority traffic
A step in which the transmitter acquires a part or all of the road , and the road user is in a preferential traffic state from the transmitter.
Receiving a part or all of the information for determining whether or not the step, determining whether the road user is in a priority traffic state based on the information received in the step, and determining in the step Based on the above, the method for controlling the traffic controller is provided. 12. The method according to claim 11, wherein the information of the road user received in the receiving step includes position information of the road user, and the step of controlling the traffic controller has a priority traffic state. Traffic that controls the traffic controller on the traveling route of the road user at a predetermined timing based on the position information of the road user at a predetermined timing. How to control the controller. 13. The method according to claim 12, wherein the road user information received from the road user includes route information that the road user follows, and the step of controlling the traffic controller comprises: A control of the traffic controller on the traveling route of the road user based on the route information so as to preferentially pass the road user at a predetermined timing. Method. 14. The method according to claim 13, further comprising the step of evaluating route information based on position information received from the road user, and wherein the step determines that the route information is not optimal. A method for controlling a traffic controller, comprising: a step of calculating an optimum traveling route; and a step of transmitting the traveling route calculated in the step to the road user. 15. The method according to claim 12, wherein the road user information received from the road user includes destination information to which the road user advances, and the method further comprises: A method of controlling a traffic controller, comprising: a step of calculating an optimum traveling route based on position information and destination information; and a step of transmitting the traveling route calculated in the step to the road user. . 16. The traffic controller according to claim 11, further comprising a warning step of issuing a warning to road users other than the road users in the preferential traffic state. Control method.