WO2015052953A1 - 車両誘導システム、車両誘導方法、管理装置およびその制御方法 - Google Patents
車両誘導システム、車両誘導方法、管理装置およびその制御方法 Download PDFInfo
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- WO2015052953A1 WO2015052953A1 PCT/JP2014/063338 JP2014063338W WO2015052953A1 WO 2015052953 A1 WO2015052953 A1 WO 2015052953A1 JP 2014063338 W JP2014063338 W JP 2014063338W WO 2015052953 A1 WO2015052953 A1 WO 2015052953A1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0133—Traffic data processing for classifying traffic situation
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
Definitions
- the present invention relates to a vehicle guidance system, a vehicle guidance method, a management device, and a control method for guiding a vehicle traveling on a road.
- VICS Vehicle Information and Communication System
- Patent Document 1 Japanese Patent No. 3822424
- the vehicle is guided in a time-sharing manner to a traffic jam road and a detour. By doing so, the vehicle can be distributed on the congested road and the detour.
- Patent Document 1 in the case where a traffic jam occurs, the vehicle is distributed to the traffic jam road where the traffic jam occurs and the detour, while suppressing the occurrence of the traffic jam on the detour, It is intended to alleviate traffic jams on congested roads.
- An object of the present invention is to provide a vehicle guidance system, a vehicle guidance method, a management device, and a control method thereof that can suppress the occurrence of a traffic jam.
- a vehicle guidance system of the present invention includes: A vehicle guidance system for guiding a vehicle traveling on a road constituting a road network, A flow rate detecting means for detecting a flow rate of a vehicle on each road constituting the road network and generating flow rate information indicating a detection result; Storage means for storing the flow rate information of each road generated by the flow rate detection means in association with road identification information indicating a corresponding road; For each of the roads constituting the road network, a road into which a vehicle flows from the road is identified as a candidate road, and the flow rate information stored in the storage means corresponding to the road identification information indicating the identified candidate road Determining means for determining a flow rate increase / decrease policy of the vehicle on the candidate road based on the acquired flow rate information; Guidance means for guiding the vehicle in response to the determination by the determination means.
- the vehicle guidance method of the present invention includes: A vehicle guidance method in a vehicle guidance system for guiding a vehicle traveling on a road constituting a road network, Detecting the flow rate of vehicles on each road constituting the road network, generating flow rate information indicating the detection results, Storing the flow rate information of each road in association with road identification information indicating the corresponding road; For each of the roads constituting the road network, the road into which the vehicle flows from the road is identified as a candidate road, and the flow rate information stored corresponding to the road identification information indicating the identified candidate road is acquired, Based on the obtained flow rate information, determine a flow rate increase / decrease policy of the vehicle on the candidate road, In response to the determination, guidance for the vehicle is performed.
- the management device of the present invention provides: An acquisition means for acquiring flow rate information indicating a detection result of the flow rate of the vehicle on each road constituting the road network; Storage means for storing the flow rate information of each road acquired by the previous acquisition means in association with road identification information indicating a corresponding road; For each of the roads constituting the road network, a road into which a vehicle flows from the road is identified as a candidate road, and the flow rate information stored in the storage means corresponding to the road identification information indicating the identified candidate road And determining a flow rate increase / decrease policy of the vehicle on the candidate road based on the acquired flow rate information, and in response to the determination, a guidance unit that performs guidance for the vehicle performs guidance for the vehicle Means.
- the control method of the management apparatus of the present invention includes: A control method of a management device that manages guidance for vehicles traveling on each road constituting a road network, Obtaining flow information indicating the detection result of the flow of vehicles on each road constituting the road network, Storing the obtained flow rate information of each road in association with road identification information indicating the corresponding road; For each of the roads constituting the road network, the road into which the vehicle flows from the road is identified as a candidate road, and the flow rate information stored corresponding to the road identification information indicating the identified candidate road is acquired, Based on the acquired flow rate information, an increase / decrease policy of the flow rate of the vehicle on the candidate road is determined, and in response to the determination, guidance means for guiding the vehicle guides the vehicle.
- FIG. 1st embodiment of the present invention It is a figure showing the whole vehicle guidance system composition in a 1st embodiment of the present invention. It is a figure which shows a part of structure of the vehicle guidance system shown in FIG. It is a block diagram which shows the structure of the flow volume detection apparatus shown in FIG. It is a block diagram which shows the structure of the vehicle guidance apparatus shown in FIG. It is a block diagram which shows the structure of the server shown in FIG. It is a flowchart which shows operation
- FIG. 1 It is a block diagram which shows the structure of the vehicle-mounted apparatus shown in FIG. It is a block diagram which shows the structure of the server shown in FIG. It is a flowchart which shows operation
- FIG. 1 is a diagram showing an overall configuration of a vehicle guidance system 1 according to the first embodiment of the present invention.
- vehicle guidance system 1 is applied to a road network including a road 2 and a plurality of intersections 3 connected to the plurality of roads 2 will be described.
- the vehicle guidance system 1 of the present embodiment includes a flow rate detection device 10 installed on each road 2 constituting a road network, a vehicle guidance device 20 installed at each intersection 3, a flow rate detection device 10 and a vehicle guidance device 20.
- the server 30 which communicates with.
- the server 30 is an example of a management device.
- the flow rate detection device 10 detects the flow rate of the vehicle and the speed of the vehicle on the installed road 2. Further, the flow rate detection device 10 provides the server 30 with flow rate information indicating the detected vehicle flow rate and vehicle speed, and road identification information indicating the road 2 on which the device is installed and the traveling direction of the vehicle on the road 2. Send.
- the vehicle guidance device 20 performs guidance for the vehicle in the vicinity of the installed intersection 3.
- the server 30 determines a flow rate increase / decrease policy of the vehicle on each road 2 based on the flow rate information acquired from the flow rate detection device 10, and causes the vehicle guidance device 20 to guide the vehicle according to the determined policy.
- FIG. 2 is a diagram showing a part of the configuration of the vehicle guidance system 1 shown in FIG.
- intersection 3-0 is connected to the intersection 3-1 via the road 2-1, is connected to the intersection 3-2 via the road 2-2, and is connected to the intersection 3-2 via the road 2-3. 3 and via road 2-4 to intersection 3-4.
- the flow rate detecting devices 10-1 to 10-4 are installed on the roads 2-1 to 2-4, respectively.
- the flow rate detecting devices 10-1 to 10-4 are respectively vehicles on the road 2 where the own device is set.
- the flow rate information and road identification information indicating the detection result are transmitted to the server 30.
- the server 30 selects one of the roads 2 constituting the road network, and identifies a road (hereinafter referred to as a candidate road) into which a vehicle flows from the selected road (hereinafter referred to as a selected road). . Further, the server 30 determines a flow rate increase / decrease policy of the vehicle on the candidate road based on the flow rate information acquired from the flow rate detection device 10 installed on the candidate road, and in response to the determination, the server 30 sends the vehicle guidance device 20 a vehicle. To guide you.
- the server 30 identifies the roads 2-2 to 2-4 into which vehicles flow from the road 2-1 as candidate roads. Further, the server 30 determines a flow rate increase / decrease policy of the vehicle on each candidate road based on the flow rate information acquired from the flow rate detection devices 10-2 to 10-4 installed on the candidate roads. In addition, the server 30 outputs control information indicating an increase / decrease policy of the vehicle flow rate on each candidate road to the vehicle guidance apparatus 20 installed at the intersection 3-0 connected to the roads 2-1 to 2-4.
- the vehicle guidance device 20 performs guidance for the vehicle traveling on the road 2-1 according to the control information output from the server 30.
- the flow rate detection device 10 illustrated in FIG. 3 includes a communication unit 11 and a flow rate detection unit 12.
- the communication unit 11 communicates with the server 30 wirelessly or by wire. Specifically, the communication unit 11 communicates with the server 30 via a wireless communication network such as GSM (Global System for Mobile Communication) (registered trademark), 3G (3rd Generation), or LTE (Long Term Evolution). .
- the communication unit 11 communicates with the server 30 using a wireless LAN (Local Area Network), Bluetooth (registered trademark), Zigbee (registered trademark), or the like.
- the communication unit 11 communicates with the server 30 via a wired network such as FTTH (Fiber to the Home), xDSL (Digital Subscriber Line), ONU (Optical Network Unit), and the like.
- the flow rate detection unit 12 periodically detects the flow rate of the vehicle and the speed of the vehicle on the road 2 where the flow rate detection device 10 is installed, and generates flow rate information indicating the detection result. In addition, the flow rate detection unit 12 causes the communication unit 11 to transmit the generated flow rate information and road identification information to the server 30.
- the flow rate detection unit 12 is an example of a flow rate detection unit.
- the flow rate detection device 10 may include a plurality of flow rate detection units 12 and detect flow rates and vehicle speeds at a plurality of points on the road 2 where the flow rate detection device 10 is installed.
- the flow rate detection devices 10 may be installed at a plurality of points on one road, and each flow rate detection device 10 may detect the flow rate of the vehicle and the vehicle speed at the point where the own device is installed.
- the vehicle guidance device 20 illustrated in FIG. 4 includes a communication unit 21 and a vehicle guidance unit 22.
- the vehicle guidance device 20 illustrated in FIG. 4 is a communication unit 21 and a vehicle guidance unit 22.
- the communication unit 21 communicates with the server 30 wirelessly or by wire.
- the vehicle guidance unit 22 When the communication unit 21 receives the control information transmitted from the server 30, the vehicle guidance unit 22 performs guidance for the vehicle according to the increase / decrease policy of the vehicle flow rate on each road 2 indicated by the control information. Specifically, the vehicle guide unit 22 guides more vehicles to candidate roads determined to increase the flow rate of the vehicle.
- the vehicle guidance part 22 is an example of guidance means.
- a specific example of the vehicle guidance unit 22 is a display means such as an electric bulletin board installed at the intersection 3.
- the vehicle guiding unit 22 displays an image or the like indicating the direction in which the vehicle is guided according to the control information.
- the server 30 shown in FIG. 5 includes a communication unit 31, a storage unit 32, a flow rate information storage unit 33, and a determination unit 34.
- the communication unit 31 communicates with the flow rate detection device 10 (communication unit 11) and the vehicle guidance device 20 (communication unit 21).
- the communication unit 31 is an example of an acquisition unit.
- the storage unit 32 temporarily or permanently stores various information.
- Specific examples of the storage unit 32 include flash memory such as HDD (Hard Disk Drive) and SSD (Solid State Drive), DRAM (Dynamic Random Access Memory), optical disk, and magnetic table.
- the storage unit 32 is an example of a storage unit.
- the flow rate information storage unit 33 stores the flow rate information road and the road identification information in the storage unit 32 in association with each other.
- the determination unit 34 selects one road from among the roads 2 constituting the road network as a selected road, and identifies a road into which a vehicle flows from the selected road as a candidate road. In addition, the determination unit 34 acquires the flow rate information stored in the storage unit 32 corresponding to the road identification information indicating the candidate road, and determines the flow rate increase / decrease policy of the vehicle on the candidate road based on the acquired flow rate information. To do. Further, the determination unit 34 causes the communication unit 32 to transmit control information indicating an increase / decrease policy of the flow rate of the vehicle on the candidate road to the vehicle guidance device 20 installed at the intersection 3 where the selected road and the candidate road are connected. . The determination unit 34 is an example of a determination unit.
- the flow rate detection unit 12 detects the number of vehicles passing through a specific point on the road 2 where the flow rate detection device 10 is installed and the vehicle speed within a certain time (step S101).
- the flow rate detection unit 12 calculates the flow rate of the vehicle based on the following equation (1).
- Q m / t (1)
- Q is the flow rate of the vehicle
- m is the number of vehicles that have passed a specific point within the detection time
- t is the detection time.
- the flow rate detection unit 12 generates flow rate information indicating the calculated vehicle flow rate Q and the detected vehicle speed (step S102).
- the flow rate detection unit 12 causes the communication unit 11 to transmit the generated flow rate information, detection time information indicating the time of detection, and road identification information to the server 30 (step S103).
- the flow rate detection unit 12 periodically performs the processes of steps S101 to S103 described above. By doing so, the flow rate information of each road 2 is regularly updated, and therefore, an increase / decrease policy of the vehicle flow rate on each road 2 can be determined based on the newer flow rate information.
- the flow rate information storage unit 33 performs the following processing with the communication unit 31 receiving the flow rate information transmitted from the flow rate detection device 10 as a trigger.
- the flow rate information storage unit 33 acquires the flow rate information, detection time information, and road identification information received by the communication unit 31 (step S111).
- the flow rate information storage unit 33 stores the acquired flow rate information, detection time information, and road identification information in association with each other in the storage unit 32 (step S112), and ends the process.
- the determination unit 34 selects one of the roads 2 constituting the road network as a selected road (step S121).
- a selection method of a selection road the method of selecting all the roads 2 sequentially, the method of selecting at random from all the roads 2, and the road connected to the intersection 3 where the vehicle guidance apparatus 20 was installed is selected. There are methods.
- the determination unit 34 identifies a road into which a vehicle flows from the selected road as a candidate road, and acquires the flow rate information stored in the storage unit 32 corresponding to the road identification information of the candidate road (step S122). .
- the determination unit 34 acquires the flow rate information with the latest detection time.
- the determination unit 34 specifies the roads 2-2 to 2-4 into which vehicles flow from the road 2-1 as candidate roads.
- the flow rate information of the roads 2-2 to 2-4 is acquired.
- the determination unit 34 determines the target number of vehicles for each candidate road based on the flow rate information for each candidate road. (Step S123). A method for determining the target number of vehicles will be described later.
- the determination unit 34 determines for each candidate road whether the number of vehicles on the candidate road is larger than the target number of vehicles (step S124).
- the number of vehicles on the candidate road is the number of vehicles m in the above-described equation (1).
- the determination unit 34 restricts the inflow of vehicles to the candidate road, that is, the flow rate of vehicles on the candidate road. Is determined to be decreased (step S125).
- the determination unit 34 increases the flow rate of the vehicle on the candidate road, for example, or It is decided to keep it.
- the vehicle guidance device installed in the communication unit 31 at the intersection 3 where the selected road and the candidate roads are connected to the communication unit 31 is determined. 20 (step S126).
- the determination unit 34 periodically performs the processes of steps S121 to S126 described above.
- the road capacity is constant regardless of the time zone. Therefore, when the number of vehicles existing on the road 2 increases and exceeds a certain value, the inter-vehicle distance decreases, so the average speed of each vehicle decreases. That is, there is a negative correlation between the number of vehicles on the road 2 and the average speed of the vehicles. Further, the flow rate Q of the vehicle on the road 2 is represented by the following formula (2).
- Equation (2) M is the number of vehicles on the road 2
- l is the road capacity
- v is the average speed of the vehicles.
- the flow rate Q increases linearly as the number of vehicles increases.
- the number of vehicles M exceeds a certain value, the variation in the flow rate Q is reduced because the number of vehicles M and the average speed v of the vehicle have a negative correlation. Therefore, the flow rate Q can be approximated as an upward convex function as shown in FIG.
- the total number of vehicles on each road 2 constituting the road network is a constant value regardless of the allocation of vehicles to each road 2.
- the number of vehicles allocated to each road 2 (target number of vehicles) that maximizes the flow of vehicles on each road 2 is to solve the so-called convex planning problem. Can be obtained.
- 10A to 10C are diagrams for explaining the determination of the target number of vehicles using the convex planning problem.
- the candidate roads are roads 2-2 to 2-4 shown in FIG. 2, and the target number of vehicles for each road is determined as an example.
- FIGS. 10A to 10C respectively show convex functions 50-1 to 50-4 indicating the relationship between the number of vehicles and the flow rate of the vehicles obtained from the flow rate information of the roads 2-2 to 2-4 shown in FIG. .
- Equation (3) is a necessary and sufficient condition for obtaining an optimal solution in a convex programming problem.
- Equation (3) m i * is the number of vehicles, and Qi and Qj are convex functions indicating the relationship between the number of vehicles and the flow rate of the vehicle.
- the initial value of the number of vehicles mi is given, the convex functions are partially differentiated in the vicinity of the number of vehicles mi, the partial differential values are compared, and the number of assigned vehicles is such that the difference between the partial differential values is less than or equal to a predetermined value. Increase or decrease mi. By repeating this operation, the convex planning problem can be solved.
- the partial differential value obtained by partial differentiation of the convex function 50 in the vicinity of the number of vehicles 51 corresponds to the slope of the straight line 52 in contact with the convex function 50 in the vicinity of the number of vehicles 51. Accordingly, the convex planning problem can be solved by increasing / decreasing the number of vehicles 51-2 to 51-4 so that the difference in inclination between the straight lines 52-2 to 52-4 shown in FIGS. 10A to 10C becomes small.
- the upward convex convex function has a characteristic that the differential value decreases as the variable increases, and the differential value increases as the variable decreases. Accordingly, when the partial differential value of the convex function is large, the number of vehicles is increased, and when the partial differential value is small, the number of vehicles is decreased, so that the difference between the partial differential values of the convex functions 50-1 to 50-4. Can be reduced. By repeating this operation, the number of vehicles assigned to each road 2 can be made asymptotic to a number that maximizes the sum of the flow rates of vehicles on each road 2.
- a drop in the flow rate of the vehicle on the road 2 indicates an indication that traffic congestion will occur on the road 2.
- the target vehicle number is determined using the partial differential value of the convex function indicating the relationship between the flow rate of the vehicle and the number of vehicles, and the comparison between the target vehicle number and the actual vehicle number is performed. By determining the flow rate increase / decrease policy, the flow rate can be adjusted before the flow rate drops.
- the amount of increase / decrease in the number of vehicles may be changed according to the difference from the average of each partial differential value. From the characteristic of the convex function, it can be seen that when the difference from the average of the partial differential values is large, the distance to the target number of vehicles is longer than when the difference is small. Therefore, when the difference from the average of each partial differential value is large, the time required for determining the target number of vehicles can be shortened by increasing the increase / decrease amount of the number of vehicles.
- the vehicle guiding unit 22 performs the following processing with the communication unit 21 receiving the control information transmitted from the server 30 as a trigger.
- the vehicle guide unit 22 acquires the control information received by the communication unit 21 (step S131).
- the vehicle guidance unit 22 performs guidance for the vehicle according to the vehicle increase / decrease policy on each road 2 indicated in the acquired control information (step S132).
- a specific example of the vehicle guiding unit 22 includes display means.
- the vehicle guiding unit 22 displays an image for guiding the vehicle on the display unit.
- FIG. 12 is a diagram illustrating an example of the image 4 displayed by the vehicle guiding unit 22.
- the vehicle guidance unit 22 of the vehicle guidance apparatus 20 installed at the intersection 3-0 shown in FIG. 2 performs guidance for a vehicle entering the intersection 3-0 from the road 2-1. Will be described as an example.
- the road 2-4 is crowded than the road 2-3
- the road 2-3 is crowded than the road 2-2
- the determination unit 34 includes the roads 2-4 and 2-3. Suppose that it is decided to reduce the flow rate of the vehicle at. Further, the determination unit 34 determines that the road 2-4 is more crowded than the road 2-3, and therefore the flow rate of the vehicle on the road 2-4 is to be reduced more than the flow rate of the vehicle on the road 2-3. To do.
- the vehicle guidance unit 22 displays, for example, a darker color on a road with a larger amount of flow reduction. As described above, the determination unit 34 determines that the flow rate of the vehicle on the road 2-4 is more greatly reduced than that on the road 2-3. In this case, the vehicle guide unit 22 displays the road 2-4 in the darkest color, and then displays the road 2-3 in a lighter color than the road 2-4 and darker than the road 2-2.
- the flow rate detection device 10 is provided on each road 2 constituting the road network, detects the flow rate of the vehicle on the road 2, and provides flow rate information indicating the detection result. Generate.
- the server 30 acquires the flow rate information of the road 2 from the flow rate detection device 10, and stores the acquired flow rate information and the corresponding road identification information of the road 2 in association with each other. Further, the server 30 specifies, for each road 2 constituting the road network, a road into which a vehicle flows from the road 2 as a candidate road.
- the server 30 acquires the flow rate information stored in correspondence with the road identification information of the candidate road, determines the increase / decrease policy of the vehicle flow rate on the candidate road based on the acquired flow rate information, In response, the vehicle guidance device 20 is guided to the vehicle.
- a policy for increasing or decreasing the flow rate of the vehicle on each road 2 is determined so that the sum of the flow rate of the vehicle on each road 2 becomes larger by increasing or decreasing the flow rate of the vehicle on each road 2 based on the flow rate information of each road 2 can do. And generation
- production of traffic congestion can be suppressed by performing guidance with respect to a vehicle according to the determination.
- the vehicle guidance device 20 is installed at each intersection 3 to perform guidance for the vehicle has been described, but the present invention is not limited thereto.
- a car navigation device having a display unit, a smartphone, a tablet terminal, or the like may be mounted on each vehicle, and an image for guidance may be displayed on the display unit included in these devices. By doing so, it is not necessary to install the vehicle guidance device 20, and the installation cost of the infrastructure can be suppressed.
- the candidate roads may be limited to roads that are candidates for the travel route to the destination. By doing so, it is possible to avoid guiding to a road that is far from the destination of the vehicle.
- a signal installed at the intersection 3 may be controlled to change the inflow permission time for permitting the inflow of vehicles to each road.
- the road 2 is a toll road and the vehicle guide unit 22 has a function of charging according to the traveling road of the vehicle, a difference is made in the toll according to the congestion degree of each road 2, An incentive may be given to a vehicle that has traveled on the existing road 2 (for example, a fee may be reduced).
- the determination unit 34 determines the vehicle flow rate increase / decrease policy independently for each candidate road, but the present invention is not limited to this.
- the determination unit 34 uses not only the flow information on the candidate roads but also the flow information on the roads into which the vehicles flow from the candidate roads (hereinafter referred to as the subsequent roads), and determines the increase / decrease policy of the vehicle flow on the candidate roads. It may be determined.
- the determination unit 34 calculates the target vehicle number based on the target vehicle number on the candidate road and the vehicle number on the subsequent road 2, and determines the smaller one as the target vehicle number on the candidate road.
- the vehicle guidance system 1 has been described using an example including the flow rate detection device 10, the vehicle guidance device 20, and the server 30, but the present invention is not limited thereto.
- the function of the server 30 may be distributed to the vehicle guidance device 20 without providing the server 30.
- FIG. 13 is a diagram showing a configuration of a vehicle guidance system 1a in which the functions of the server 30 are distributed to the vehicle guidance device.
- the same components as those in FIG. 13 are identical to FIG. 13 in FIG. 13, the same components as those in FIG. 13
- the vehicle guidance system 1a shown in FIG. 13 is different from the vehicle guidance system 1 shown in FIG. 2 in that the server 30 is deleted, the vehicle detection device 10 is changed to the vehicle detection device 10a, and the vehicle guidance device 20 Is different from the vehicle guidance device 20a.
- the flow rate detection device 10a is installed on each road 2 constituting the road network. Further, the vehicle guidance device 20a is installed at each intersection 3.
- the flow rate detection device 10a detects the flow rate of the vehicle and the speed of the vehicle on the road 2 where the own device is installed, and the intersection where the road 2 where the own device is installed connects the flow rate information and the road identification information indicating the detection result. 3 is transmitted to the vehicle guidance device 20a installed in the vehicle.
- the vehicle guidance device 20a determines the increase / decrease policy of the flow rate of the vehicle on the road 2 connected to the intersection 3 where the device is installed, and according to the determination. , Guidance to the vehicle.
- the flow rate detection device 10a shown in FIG. 14 is different from the flow rate detection device 10 shown in FIG. 3 in that the communication unit 11 is changed to the communication unit 11a and the flow rate detection unit 12 is changed to the flow rate detection unit 12a. Is different.
- the communication unit 11a communicates with the vehicle guidance device 20a.
- the flow rate detection device 10a and the vehicle guidance device 20a are physically close to each other. Therefore, by using a short-range wireless network such as a wireless LAN, an ad hoc network, DTN (Delay Tolerant Network), etc., communication between the flow rate detection device 10a and the vehicle guidance device 20a can be performed with a lower cost configuration.
- a short-range wireless network such as a wireless LAN, an ad hoc network, DTN (Delay Tolerant Network), etc.
- a network construction method using a wireless LAN, an ad hoc network, a DTN, or the like is well known to those skilled in the art and is not directly related to the present invention, and thus description thereof is omitted.
- the flow rate detection unit 12a periodically detects the flow rate and speed of the vehicle on the road 2 where the flow rate detection device 10 is installed, and generates flow rate information indicating the detection result. Moreover, the flow volume detection part 12 makes the communication part 11a transmit the produced
- the flow rate detection unit 12a is an example of a flow rate detection unit.
- the vehicle guidance device 20a shown in FIG. 15 is different from the vehicle guidance device 20 shown in FIG. 4 in that the communication unit 21 is changed to the communication unit 21a, the storage unit 23, the flow rate information storage unit 24, and the determination unit 25. It is different from the added point.
- the communication unit 21a communicates with the flow rate detection device 10a (communication unit 11a).
- the storage unit 23 temporarily or permanently stores various information.
- the storage unit 23 is an example of a storage unit.
- the flow rate information storage unit 24 stores the flow rate information road and the road identification information in the storage unit 23 in association with each other.
- the determination unit 25 selects one of the roads 2 connected to the intersection 3 where the vehicle guidance device 20a is installed as a selected road, and identifies a road into which a vehicle flows from the selected road as a candidate road. In addition, the determination unit 25 acquires flow rate information stored in the storage unit 23 corresponding to the road identification information indicating the candidate road, and determines a flow rate increase / decrease policy of the vehicle on the candidate road based on the acquired flow rate information. Then, in response to the determination, the guidance unit 22 is guided to the vehicle.
- the determination unit 25 is an example of a determination unit.
- the system configuration can be simplified by eliminating the server 30 and distributing the functions of the server 30 to the vehicle guidance device 20a.
- the present invention is not limited thereto.
- the stability of the system may be regarded as decreased, and the vehicle guidance system may be operated to avoid congestion of the vehicle. .
- One method for performing the above-described operation is to use the Langevin equation.
- the potential term of the Langevin equation is multiplied by a variable that evaluates the stability of the system.
- the potential term is dominant, and when the system is unstable, the noise term is dominant.
- an equation obtained by multiplying the potential term of the Langevin equation by a variable for evaluating the stability of the system is referred to as a fluctuation equation.
- the potential term in the fluctuation equation corresponds to the distribution for guiding the vehicle to each road in the vehicle guidance system according to the present invention.
- the system When the system is stable, that is, when there is no traffic jam, it operates so that the potential term becomes dominant.
- the system is not stable, that is, when a traffic jam occurs on a specific road, the noise term is dominant.
- the distribution for guiding the vehicle to each road is randomly changed until the congestion is resolved. In this way, even if the cause of the traffic jam is unknown, the vehicle guidance system can be operated so that the traffic jam is eliminated.
- the flow rate detection unit 12 has been described using an example of transmitting road identification information and detection time information together with flow rate information.
- the present invention is not limited to this.
- the flow rate detection unit 12 may transmit the identification information of the flow rate detection device 10 instead of the road identification information.
- the flow rate detection unit 12 may cause the communication unit 11 to transmit the identification information of the flow rate detection device 10 and the road identification information to the server 30 when the flow rate detection device 10 is activated. In this case, if the server 30 stores the identification information of the flow rate detection device 10 and the road identification information in association with each other, the flow rate detection unit 12 thereafter identifies the flow rate detection device 10 instead of the road identification information. Information may be transmitted.
- the flow rate detection unit 12 transmits road identification information and detection time information together with the flow rate information, and the flow rate information storage unit 24 The road identification information and the detection time information are associated with each other and stored in the storage unit 23.
- the present invention is not limited to this, and the flow rate detection unit 12 transmits the flow rate information and the road identification information, and the flow rate information storage unit 24 performs the road identification every time the information is transmitted. You may make it update the flow volume information memorize
- the vehicle guidance system acquires position information from a vehicle traveling on the road 2, and calculates a flow rate on the road 2 based on time-series fluctuations in the position of the vehicle indicated in the position information. To detect.
- FIG. 16 is a diagram showing a configuration of the vehicle guidance system 1b in the present embodiment.
- the same components as those in FIG. 16 are identical to FIG. 16 in FIG. 16, the same components as those in FIG. 16.
- the vehicle guidance system 1b of this embodiment differs from the vehicle guidance system 1 of the first embodiment in that the flow rate detection device 10 is deleted and the server 30 is changed to a server 30b.
- the server 30b acquires position information from the vehicle 40 traveling on the road 2, and detects the flow rate in each road 2 constituting the road network based on the time-series fluctuation of the position of the vehicle 40 indicated by the position information. To do. Moreover, the server 30b determines the increase / decrease policy of the flow rate of the vehicle on each road 2 based on the flow rate information indicating the detection result, and causes the vehicle guidance device 20 to guide the vehicle according to the determination.
- 17 includes a communication unit 41 and a position detection unit 42.
- the communication unit 41 communicates with the server 30b.
- the position detection unit 42 periodically detects the position of the vehicle 40, and causes the communication unit 41 to transmit position information indicating the detected position and position detection time information indicating the time at which the position detection is performed to the server 30b.
- the position detector 42 receives a GPS signal from, for example, a GPS (Global Positioning System) satellite, and detects the position of the vehicle 40 using the received GPS signal.
- the position detection unit 42 is an example of a position detection unit.
- the server 30b illustrated in FIG. 18 is different from the server 30 illustrated in FIG. 5 in that the communication unit 31 is changed to the communication unit 31b, the flow rate information storage unit 33 is changed to the flow rate information storage unit 33b, and the position.
- the difference is that an information storage unit 35, a traveling road detection unit 36 and a flow rate detection unit 37 are added.
- the flow rate detection unit 37 is an example of an acquisition unit.
- the communication unit 31b communicates with the vehicle guidance device 20 and the vehicle 40.
- the position information storage unit 35 associates the position information and the position detection time information with the vehicle information indicating the vehicle 40.
- the data is stored in the storage unit 32.
- the traveling road detection unit 36 detects the traveling road and the traveling direction of each vehicle 40 based on the position information and position detection time information of each vehicle 40 stored in the storage unit 32.
- the flow rate detection unit 37 detects the flow rate of the vehicle 40 and the speed of the vehicle 40 on each road 2 based on the traveling road and the traveling direction of each vehicle 40 detected by the traveling road detection unit 36, and indicates the detection result. To get.
- the flow rate information storage unit 33b corresponds to the flow rate information of the road 2 acquired by the flow rate detection unit 37, the detection time information indicating the detection time of the flow rate of the vehicle 40 and the speed of the vehicle 40, and the road identification information of the road 2.
- the data is stored in the storage unit 32.
- the position detection unit 42 detects the position of the host vehicle using a GPS signal or the like (step S201), and generates position information indicating the detected position (step S202).
- the position detection unit 42 causes the communication unit 41 to transmit the vehicle information indicating the vehicle 40, the generated position information, and the position detection time information to the server 30b (step S203).
- the position detection unit 42 periodically performs the processes of steps S201 to S203 described above.
- the position information storage unit 35 performs the following process using the information transmitted from the vehicle 40 as a trigger when the communication unit 31b receives the information.
- the position information storage unit 35 acquires the vehicle information, the flow rate information, and the position detection time information received by the communication unit 31b (step S211).
- the position information storage unit 35 stores the acquired vehicle information, flow rate information, and position detection time information in association with each other in the storage unit 32 (step S212), and ends the process.
- the traveling road detection unit 36 acquires the position information for each vehicle 40 from the storage unit 32 in time series (step S221).
- the traveling road detection unit 36 derives the traveling road and the traveling direction of the vehicle 40 based on the time series change of the position of the vehicle 40 indicated by the position information (step S222).
- the traveling road of the vehicle 40 can be derived using the acquired position information and map information such as GIS (Geographic Information System).
- the traveling direction of the vehicle 40 can be derived from the time change of the position of the vehicle 40 on the traveling road.
- GIS Geographic Information System
- step S222 By performing the process of step S222, the traveling road and the traveling direction for each vehicle 40 at each time can be specified.
- the traveling road detection unit 36 causes the storage unit 32 to store road identification information indicating the traveling road and the traveling direction of the vehicle 40 in association with the position information and position detection time information of the vehicle 40.
- the traveling road detection unit 36 periodically performs the processes of steps S221 to S223 described above.
- the flow rate detection unit 37 acquires vehicle information, position information, and position detection time information from the storage unit 32 for each traveling road / traveling direction (step S231).
- the flow rate detection unit 37 detects the flow rate of the vehicle for each traveling road for each time and for each traveling direction based on the acquired vehicle information for each traveling road and for each traveling direction, position information, and position detection time information. .
- the flow rate detection unit 37 associates the time information indicating the detection time, the road identification information indicating the travel road and the traveling direction, and the flow rate information indicating the flow rate of the vehicle on the travel road, It outputs to 33b (step S233).
- the flow rate detection unit 37 periodically performs the processes of steps S231 to S233 described above.
- the flow rate of the vehicle on the road 2 can be calculated based on the number of vehicles traveling on the road 2, the speed of the vehicle, and the road capacity of the road 2.
- the number of vehicles traveling on the road 2 can be calculated based on the number of traveling vehicles at each time. Further, the speed of the vehicle can be calculated using the following equation (4).
- ⁇ d a difference in the position of the vehicle
- ⁇ t a difference in the acquisition time of the position information
- the road capacity is constant regardless of the time zone.
- the flow rate of the vehicle can be detected based on the position information acquired from the vehicle 40.
- the position detection unit 42 mounted on the vehicle 40 detects the position of the vehicle 40, and transmits position information indicating the detected position to the server 30b.
- the server 30 detects the flow rate of the vehicle on each road 2 based on the position information acquired from the vehicle 40, and determines the increase / decrease policy of the flow rate of the vehicle on each road 2 based on the flow rate information indicating the detected flow rate. .
- the speed of the vehicle 40 is calculated based on the equation (4).
- the vehicle 40 detects the speed and uses the information indicating the detected speed as the vehicle 40. May be transmitted to the server 30 in association with vehicle information, position information, and position detection time information.
- a method of detecting the speed in the vehicle 40 a method of calculating based on a time change of the position of the vehicle 40, a method of mounting an acceleration sensor on the vehicle 40, and a method of calculating based on a time change of acceleration detected by the acceleration sensor, For example, there is a method of obtaining via CAN (Controller Access Network).
- CAN Controller Access Network
- each vehicle 40 uses the vehicle guidance part 22. You may make it prepare. For example, you may mount the function of the vehicle guidance part 22 in the navigation apparatus, smart phone, tablet terminal, etc. with which each vehicle 40 was equipped.
- the vehicle guidance system according to the present invention can be introduced while suppressing the influence on the existing road infrastructure.
- the vehicle guidance system according to the present invention can be introduced by providing the vehicle of the delivery company with a device having a position detection function and a guidance function.
- a program for realizing all or part of the functions of the vehicle guidance system according to the present invention is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed. The processing of each unit may be performed as necessary.
- the “computer system” includes an OS (Operation System) or hardware such as a peripheral device.
- the “computer-readable recording medium” refers to a storage device such as a magneto-optical disk, a ROM (Read Only Memory), a portable medium such as a nonvolatile semiconductor memory, and a hard disk built in the computer system.
- the “computer-readable recording medium” is a program that dynamically holds a program for a short time, like a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line.
- a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are also included.
- the program may be for realizing a part of the above-described functions, and may be capable of realizing the above-described functions in combination with a program already recorded in the computer system.
- a vehicle guidance system for guiding a vehicle traveling on a road constituting a road network, A flow rate detecting means for detecting a flow rate of a vehicle on each road constituting the road network and generating flow rate information indicating a detection result; Storage means for storing the flow rate information of each road generated by the flow rate detection means in association with road identification information indicating a corresponding road; For each of the roads constituting the road network, a road into which a vehicle flows from the road is identified as a candidate road, and the flow rate information stored in the storage means corresponding to the road identification information indicating the identified candidate road Determining means for determining a flow rate increase / decrease policy of the vehicle on the candidate road based on the acquired flow rate information; A vehicle guidance system comprising: guidance means for guiding the vehicle in response to the determination by the determination means.
- the guiding means is selected from among the identified candidate roads that are determined to increase the flow rate of the vehicle by the determining means, rather than the candidate roads that are determined to decrease the flow rate of the vehicle by the determining means.
- a vehicle guidance system characterized by guiding more vehicles.
- Appendix 3 In the vehicle guidance system according to appendix 1 or 2, On each road constituting the road network, a flow rate detection device provided with the flow rate detection means is installed, A vehicle guidance device including the guidance means is installed at each intersection where a plurality of the roads are connected, A management device capable of communicating with the flow rate detection device and the vehicle guidance device includes the storage unit and the determination unit.
- Appendix 4 In the vehicle guidance system according to appendix 1 or 2, On each road constituting the road network, a flow rate detection device provided with the flow rate detection means is installed, At each intersection where a plurality of the roads are connected, a vehicle guidance device that can communicate with the flow rate detection device and includes the storage unit, the determination unit, and the guidance unit is installed, The determination means specifies a candidate road into which a vehicle flows from the road for each road connected to an intersection where the vehicle guidance device is installed.
- the vehicle is equipped with position detection means for periodically detecting the position of the vehicle and generating position information indicating the detected position.
- a vehicle guidance device including the guidance means is installed at each intersection where a plurality of the roads are connected,
- a management device capable of communicating with the vehicle and the vehicle guidance device includes the flow rate detection means, the storage means, and the determination means,
- the vehicle flow detection system wherein the flow rate detection unit acquires the position information generated by the position detection unit, and detects a flow rate of a vehicle on each road based on the acquired position information.
- Appendix 7 In the vehicle guidance system according to any one of appendices 1 to 5, The vehicle guidance system characterized in that the guidance means performs guidance for the vehicle by display on a display means provided in the vehicle.
- the guidance means controls the time allowed to allow the vehicle to flow into the candidate road according to a signal installed at the intersection according to a policy for increasing or decreasing the amount of flow of the vehicle on the candidate road determined by the determining means.
- a vehicle guidance system characterized by that.
- the flow rate detecting means detects the number of vehicles passing through a specific point of the road where the flow rate detecting device is installed within a predetermined time, and detects the flow rate of the vehicle on the road based on the detected number of vehicles.
- a featured vehicle guidance system In the vehicle guidance system according to any one of appendices 2 to 4, The flow rate detecting means detects the number of vehicles passing through a specific point of the road where the flow rate detecting device is installed within a predetermined time, and detects the flow rate of the vehicle on the road based on the detected number of vehicles.
- the flow rate detecting means detects the number of vehicles simultaneously existing on the road based on the position information, and detects the flow rate of the vehicle on the road based on the detected number of vehicles. .
- the determining means determines the target number of vehicles on the candidate road, and determines a flow rate increase / decrease policy of the vehicle on the candidate roads by comparing the determined target number of vehicles with the number of vehicles detected by the flow rate detecting means.
- a vehicle guidance system In the vehicle guidance system according to appendix 9 or 10, The determining means determines the target number of vehicles on the candidate road, and determines a flow rate increase / decrease policy of the vehicle on the candidate roads by comparing the determined target number of vehicles with the number of vehicles detected by the flow rate detecting means.
- the determining means calculates, for each of the candidate roads, a partial differential value obtained by partially differentiating a convex function indicating the relationship between the flow rate of the vehicle and the number of vehicles obtained from the flow rate information of the candidate roads by the number of vehicles A vehicle guidance system, wherein the number of vehicles for which the difference between the partial differential values is equal to or less than a predetermined value is determined as the target number of vehicles for each candidate road.
- the determining means obtains the target vehicle number of the candidate road and the target vehicle number of the road into which the vehicle flows from the candidate road, and the target vehicle number of the candidate road and the target vehicle of the road into which the vehicle flows from the candidate road. Of these, the smaller one is determined as the target number of vehicles on the candidate road.
- An acquisition means for acquiring flow rate information indicating a detection result of the flow rate of the vehicle on each road constituting the road network;
- Storage means for storing the flow rate information of each road acquired by the acquisition means in association with road identification information indicating a corresponding road; For each of the roads constituting the road network, a road into which a vehicle flows from the road is identified as a candidate road, and the flow rate information stored in the storage means corresponding to the road identification information indicating the identified candidate road And determining a flow rate increase / decrease policy of the vehicle on the candidate road based on the acquired flow rate information, and in response to the determination, a guidance unit that performs guidance for the vehicle performs guidance for the vehicle And a management device.
- the determining means determines the target number of vehicles on the candidate road, and compares the determined number of target vehicles with the number of vehicles on the candidate road obtained from the flow information on the candidate road, thereby determining the flow rate of the vehicle on the candidate road.
- a management device characterized by determining an increase / decrease policy.
- the determining means calculates, for each of the candidate roads, a partial differential value obtained by partially differentiating a convex function indicating the relationship between the flow rate of the vehicle and the number of vehicles obtained from the flow rate information of the candidate roads by the number of vehicles. And determining the number of vehicles for which the difference between the partial differential values is equal to or less than a predetermined value as the target number of vehicles for each of the candidate roads.
- the determining means obtains the target vehicle number of the candidate road and the target vehicle number of the road into which the vehicle flows from the candidate road, and the target vehicle number of the candidate road and the target vehicle of the road into which the vehicle flows from the candidate road. Of these, the smaller one is determined as the target number of vehicles on the candidate road.
- a control method of a management device that manages guidance for vehicles traveling on each road constituting a road network Obtaining flow rate information indicating a detection result of a flow rate of a vehicle on each road constituting the road network; Storing the obtained flow rate information of each road in association with road identification information indicating the corresponding road; For each of the roads constituting the road network, the road into which the vehicle flows from the road is identified as a candidate road, and the flow rate information stored corresponding to the road identification information indicating the identified candidate road is acquired, A policy for increasing or decreasing the flow rate of the vehicle on the candidate road is determined based on the acquired flow rate information, and in response to the determination, guidance means for guiding the vehicle guides the vehicle. Control method.
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Abstract
Description
道路網を構成する道路を走行する車両に対する誘導を行なう車両誘導システムであって、
前記道路網を構成する各道路における車両の流量を検出し、検出結果を示す流量情報を生成する流量検出手段と、
前記流量検出手段により生成された前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶する記憶手段と、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して前記記憶手段に記憶されている流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定する決定手段と、
前記決定手段の決定に応じて、車両に対する誘導を行なう誘導手段と、を備える。
道路網を構成する道路を走行する車両に対する誘導を行なう車両誘導システムにおける車両誘導方法であって、
前記道路網を構成する各道路における車両の流量を検出し、検出結果を示す流量情報を生成し、
前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶し、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して記憶している流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、
前記決定に応じて、車両に対する誘導を行なう。
道路網を構成する各道路における車両の流量の検出結果を示す流量情報を取得する取得手段と、
前取得手段が取得した前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶する記憶手段と、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して前記記憶手段に記憶されている流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、該決定に応じて、前記車両に対する誘導を行なう誘導手段に、前記車両に対する誘導を行なわせる決定手段と、を備える。
道路網を構成する各道路を走行する車両に対する誘導を管理する管理装置の制御方法であって、
前記道路網を構成する各道路における車両の流量の検出結果を示す流量情報を取得する取得し、
前記取得した前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶し、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して記憶している流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、該決定に応じて、前記車両に対する誘導を行なう誘導手段に、前記車両に対する誘導を行なわせる。
図1は、本発明の第1の実施形態における車両誘導システム1の全体構成を示す図である。なお、以下では、道路2と、複数の道路2が接続する複数の交差点3とから構成される道路網に車両誘導システム1を適用した例を用いて説明する。
流量検出装置10-1~10-4はそれぞれ、自装置が設定された道路2における車両の流量および車両の速度を検出し、検出結果を示す流量情報および道路識別情報をサーバ30に送信する。
式(1)において、Qは車両の流量であり、mは検出時間内に特定の地点を通過した車両の数であり、tは検出時間である。
式(2)において、Mは道路2内の車両数であり、lは道路容量であり、vは車両の平均速度である。
本発明の第2の実施形態の車両誘導システムは、道路2を走行する車両から位置情報を取得し、位置情報に示される車両の位置の時系列的な変動に基づいて、道路2における流量を検出する。
なお、式(4)において、Δdは、車両の位置の差分であり、Δtは、位置情報の取得時刻の差分である。
道路網を構成する道路を走行する車両に対する誘導を行なう車両誘導システムであって、
前記道路網を構成する各道路における車両の流量を検出し、検出結果を示す流量情報を生成する流量検出手段と、
前記流量検出手段により生成された前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶する記憶手段と、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して前記記憶手段に記憶されている流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定する決定手段と、
前記決定手段の決定に応じて、車両に対する誘導を行なう誘導手段と、を備えることを特徴とする車両誘導システム。
付記1記載の車両誘導システムにおいて、
前記誘導手段は、前記特定された候補道路のうち、前記決定手段により車両の流量を増加させると決定された候補道路に、前記決定手段により車両の流量を減少させると決定された候補道路よりも、より多くの車両を誘導することを特徴とする車両誘導システム。
付記1または2記載の車両誘導システムにおいて、
前記道路網を構成する各道路に、前記流量検出手段を備える流量検出装置が設置され、
複数の前記道路が接続する各交差点に、前記誘導手段を備える車両誘導装置が設置され、
前記流量検出装置および前記車両誘導装置と通信可能な管理装置が、前記記憶手段および前記決定手段を備えることを特徴とする車両誘導システム。
付記1または2記載の車両誘導システムにおいて、
前記道路網を構成する各道路に、前記流量検出手段を備える流量検出装置が設置され、
複数の前記道路が接続する各交差点に、前記流量検出装置と通信可能であり、前記記憶手段、前記決定手段および前記誘導手段を備える車両誘導装置が設置され、
前記決定手段は、前記車両誘導装置が設置された交差点に接続する道路のそれぞれについて、該道路から車両が流入する候補道路を特定することを特徴とする車両誘導システム。
付記1または2記載の車両誘導システムにおいて、
前記車両には、該車両の位置を周期的に検出し、該検出した位置を示す位置情報を生成する位置検出手段が搭載され、
複数の前記道路が接続する各交差点に、前記誘導手段を備える車両誘導装置が設置され、
前記車両および前記車両誘導装置と通信可能な管理装置が、前記流量検出手段、前記記憶手段および前記決定手段を備え、
前記流量検出手段は、前記位置検出手段が生成した前記位置情報を取得し、該取得した位置情報に基づいて、前記各道路における車両の流量を検出することを特徴とする車両誘導システム。
付記1から5のいずれか1つに記載の車両誘導システムにおいて、
前記誘導手段は、交差点に設置された表示手段への表示により前記車両に対する誘導を行なうことを特徴とする車両誘導システム。
付記1から5のいずれか1つに記載の車両誘導システムにおいて、
前記誘導手段は、前記車両に設けられた表示手段への表示により前記車両に対する誘導を行なうことを特徴とする車両誘導システム。
付記2から5のいずれか1つに記載の車両誘導システムにおいて、
前記誘導手段は、前記決定手段により決定された前記候補道路における車両の流入量の増減方針に応じて、前記交差点に設置された信号により前記候補道路への車両の流入を許可する時間を制御することを特徴とする車両誘導システム。
付記2から4のいずれか1つに記載の車両誘導システムにおいて、
前記流量検出手段は、前記流量検出装置が設置された道路の特定地点を所定時間内に通過する車両数を検出し、該検出した車両数に基づいて前記道路における車両の流量を検出することを特徴とする車両誘導システム。
付記5記載の車両誘導システムにおいて、
前記流量検出手段は、前記位置情報に基づいて前記道路上に同時に存在する車両数を検出し、該検出した車両数に基づいて前記道路における車両の流量を検出することを特徴とする車両誘導システム。
付記9または10記載の車両誘導システムにおいて、
前記決定手段は、前記候補道路の目標車両数を決定し、該決定した目標車両数と前記流量検出手段により検出された車両数との比較により、前記候補道路における車両の流量の増減方針を決定することを特徴とする車両誘導システム。
付記11記載の車両誘導システムにおいて、
前記決定手段は、前記候補道路の流量情報から得られる前記車両の流量と車両数との関係を示す凸関数を前記車両数で偏微分した偏微分値を前記候補道路それぞれについて算出し、該算出した偏微分値の差が所定値以下となる車両数を前記候補道路それぞれの目標車両数として決定することを特徴とする車両誘導システム。
付記11または12記載の車両誘導システムにおいて、
前記決定手段は、前記候補道路の目標車両数および前記候補道路から車両が流入する道路の目標車両数を求め、前記候補道路の目標車両数および前記候補道路から車両が流入する道路の目標車両数のうち、小さい方を前記候補道路の目標車両数として決定することを特徴とする車両誘導システム。
道路網を構成する道路を走行する車両に対する誘導を行なう車両誘導システムにおける車両誘導方法であって、
前記道路網を構成する各道路における車両の流量を検出し、検出結果を示す流量情報を生成し、
前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶し、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して記憶している流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、
前記決定に応じて、車両に対する誘導を行なうことを特徴とする車両誘導方法。
付記14記載の車両誘導方法において、
前記特定された候補道路のうち、前記決定手段により車両の流量を増加させると決定された候補道路に、前記決定手段により車両の流量を減少させると決定されたよりも、より多くの車両を誘導することを特徴とする車両誘導システム。
道路網を構成する各道路における車両の流量の検出結果を示す流量情報を取得する取得手段と、
前記取得手段が取得した前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶する記憶手段と、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して前記記憶手段に記憶されている流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、該決定に応じて、前記車両に対する誘導を行なう誘導手段に、前記車両に対する誘導を行なわせる決定手段と、を備えることを特徴とする管理装置。
付記16記載の管理装置において、
前記決定手段は、前記候補道路の目標車両数を決定し、該決定した目標車両数と前記候補道路の流量情報から得られる前記候補道路における車両数との比較により、前記候補道路における車両の流量の増減方針を決定することを特徴とする管理装置。
付記17記載の管理装置において、
前記決定手段は、前記候補道路の流量情報から得られる前記車両の流量と車両数との関係を示す凸関数を前記車両数で偏微分した偏微分値を前記候補道路それぞれについて算出し、該算出した偏微分値の差が所定値以下となる車両数を前記候補道路それぞれの目標車両数として決定することを特徴とする管理装置。
付記17または18記載の管理装置において、
前記決定手段は、前記候補道路の目標車両数および前記候補道路から車両が流入する道路の目標車両数を求め、前記候補道路の目標車両数および前記候補道路から車両が流入する道路の目標車両数のうち、小さい方を前記候補道路の目標車両数として決定することを特徴とする管理装置。
道路網を構成する各道路を走行する車両に対する誘導を管理する管理装置の制御方法であって、
前記道路網を構成する各道路における車両の流量の検出結果を示す流量情報を取得し、
前記取得した前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶し、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して記憶している流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、該決定に応じて、前記車両に対する誘導を行なう誘導手段に、前記車両に対する誘導を行なわせることを特徴とする制御方法。
Claims (10)
- 道路網を構成する道路を走行する車両に対する誘導を行なう車両誘導システムであって、
前記道路網を構成する各道路における車両の流量を検出し、検出結果を示す流量情報を生成する流量検出手段と、
前記流量検出手段により生成された前記道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶する記憶手段と、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して前記記憶手段に記憶されている流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定する決定手段と、
前記決定手段の決定に応じて、車両に対する誘導を行なう誘導手段と、を備えることを特徴とする車両誘導システム。 - 請求項1記載の車両誘導システムにおいて、
前記誘導手段は、前記特定された候補道路のうち、前記決定手段により車両の流量を増加させると決定された候補道路に、前記決定手段により車両の流量を減少させると決定された候補道路よりも、より多くの車両を誘導することを特徴とする車両誘導システム。 - 請求項1または2記載の車両誘導システムにおいて、
前記道路網を構成する各道路に、前記流量検出手段を備える流量検出装置が設置され、
複数の前記道路が接続する各交差点に、前記誘導手段を備える車両誘導装置が設置され、
前記流量検出装置および前記車両誘導装置と通信可能な管理装置が、前記記憶手段および前記決定手段を備えることを特徴とする車両誘導システム。 - 請求項1または2記載の車両誘導システムにおいて、
前記道路網を構成する各道路に、前記流量検出手段を備える流量検出装置が設置され、
複数の前記道路が接続する各交差点に、前記流量検出装置と通信可能であり、前記記憶手段、前記決定手段および前記誘導手段を備える車両誘導装置が設置され、
前記決定手段は、前記車両誘導装置が設置された交差点に接続する道路のそれぞれについて、該道路から車両が流入する候補道路を特定することを特徴とする車両誘導システム。 - 請求項1または2記載の車両誘導システムにおいて、
前記車両には、該車両の位置を周期的に検出し、該検出した位置を示す位置情報を生成する位置検出手段が搭載され、
複数の前記道路が接続する各交差点に、前記誘導手段を備える車両誘導装置が設置され、
前記車両および前記車両誘導装置と通信可能な管理装置が、前記流量検出手段、前記記憶手段および前記決定手段を備え、
前記流量検出手段は、前記位置検出手段が生成した前記位置情報を取得し、該取得した位置情報に基づいて、前記各道路における車両の流量を検出することを特徴とする車両誘導システム。 - 請求項1から5のいずれか1項に記載の車両誘導システムにおいて、
前記誘導手段は、交差点に設置された表示手段への表示により前記車両に対する誘導を行なうことを特徴とする車両誘導システム。 - 請求項1から5のいずれか1項に記載の車両誘導システムにおいて、
前記誘導手段は、前記車両に設けられた表示手段への表示により前記車両に対する誘導を行なうことを特徴とする車両誘導システム。 - 道路網を構成する道路を走行する車両に対する誘導を行なう車両誘導システムにおける車両誘導方法であって、
前記道路網を構成する各道路における車両の流量を検出し、検出結果を示す流量情報を生成し、
前記道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶し、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して記憶している流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、
前記決定に応じて、車両に対する誘導を行なうことを特徴とする車両誘導方法。 - 道路網を構成する各道路における車両の流量の検出結果を示す流量情報を取得する取得手段と、
前記取得手段が取得した前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶する記憶手段と、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して前記記憶手段に記憶されている流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、該決定に応じて、前記車両に対する誘導を行なう誘導手段に、前記車両に対する誘導を行なわせる決定手段と、を備えることを特徴とする管理装置。 - 道路網を構成する各道路を走行する車両に対する誘導を管理する管理装置の制御方法であって、
前記道路網を構成する各道路における車両の流量の検出結果を示す流量情報を取得し、
前記取得した前記各道路の流量情報を、対応する道路を示す道路識別情報に対応させて記憶し、
前記道路網を構成する道路のそれぞれについて、該道路から車両が流入する道路を候補道路として特定し、該特定した候補道路を示す道路識別情報に対応して記憶している流量情報を取得し、該取得した流量情報に基づいて前記候補道路における車両の流量の増減方針を決定し、該決定に応じて、前記車両に対する誘導を行なう誘導手段に、前記車両に対する誘導を行なわせることを特徴とする制御方法。
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CN111475905A (zh) * | 2019-01-22 | 2020-07-31 | 上海汽车集团股份有限公司 | 一种建立道路车辆功能安全开发流程的方法及装置 |
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US10490068B2 (en) * | 2016-10-31 | 2019-11-26 | Veniam, Inc. | Systems and methods for achieving road action consensus, for example among autonomous vehicles, in a network of moving things |
CN116311953B (zh) * | 2023-05-24 | 2023-08-08 | 高德软件有限公司 | 高速公路引流方法、引流展示方法、装置、设备、介质 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005182219A (ja) * | 2003-12-17 | 2005-07-07 | Kyosan Electric Mfg Co Ltd | 交通信号制御装置と交通信号制御方法及び記憶媒体 |
JP2012073981A (ja) * | 2010-09-30 | 2012-04-12 | Fujitsu Ltd | コンピュータ、車載機、経路通知方法、および経路表示方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3822424B2 (ja) | 2000-08-22 | 2006-09-20 | 株式会社東芝 | 交通管制システム |
US9171463B2 (en) * | 2010-06-29 | 2015-10-27 | Honda Motor Co., Ltd. | Congestion estimation device |
JP5672822B2 (ja) * | 2010-07-29 | 2015-02-18 | トヨタ自動車株式会社 | 車両制御システム |
US9472097B2 (en) * | 2010-11-15 | 2016-10-18 | Image Sensing Systems, Inc. | Roadway sensing systems |
JP2013168065A (ja) * | 2012-02-16 | 2013-08-29 | Sony Corp | 情報処理装置、端末装置、情報処理方法、及び状況表示方法 |
US20140200797A1 (en) * | 2013-01-15 | 2014-07-17 | Song Ye | Eco-friendly intelligent traffic detection system |
AU2014201070A1 (en) * | 2013-05-31 | 2014-12-18 | Pinpark Ip Pty Ltd | Implementing Location Based Actions |
DE102013014872A1 (de) * | 2013-09-06 | 2015-03-12 | Audi Ag | Verfahren, Auswertesystem und kooperatives Fahrzeug zum Prognostizieren von mindestens einem Stauparameter |
US9852637B2 (en) * | 2014-01-10 | 2017-12-26 | Regents Of The University Of Minnesota | Vehicle-to-vehicle congestion monitoring using ad hoc control |
WO2015179632A1 (en) * | 2014-05-22 | 2015-11-26 | Scheffler Lee J | Methods and systems for neural and cognitive processing |
-
2014
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005182219A (ja) * | 2003-12-17 | 2005-07-07 | Kyosan Electric Mfg Co Ltd | 交通信号制御装置と交通信号制御方法及び記憶媒体 |
JP2012073981A (ja) * | 2010-09-30 | 2012-04-12 | Fujitsu Ltd | コンピュータ、車載機、経路通知方法、および経路表示方法 |
Cited By (4)
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JP2021530033A (ja) * | 2018-09-24 | 2021-11-04 | パナソニックIpマネジメント株式会社 | コミュニティ定義されたスペース |
JP7492804B2 (ja) | 2018-09-24 | 2024-05-30 | パナソニックオートモーティブシステムズ株式会社 | コミュニティ定義されたスペース |
CN111475905A (zh) * | 2019-01-22 | 2020-07-31 | 上海汽车集团股份有限公司 | 一种建立道路车辆功能安全开发流程的方法及装置 |
CN111475905B (zh) * | 2019-01-22 | 2024-02-20 | 上海汽车集团股份有限公司 | 一种建立道路车辆功能安全开发流程的方法及装置 |
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