JP2021180027A - Server device, information processing method and information processing program - Google Patents

Abstract

To provide a server device, etc. which can achieve performance of congestion absorption travel by a plurality of mobile objects together, thereby shortening the time required for dissolution of congestion itself.SOLUTION: A server device identifies a plurality of mobile objects scheduled to pass through a congestion occurrence point, and notifies terminal devices which move with the plurality of mobile objects, respectively, that congestion absorption travel is to be performed in a group.SELECTED DRAWING: Figure 3

Description

The present application relates to a technical field such as a server device that contributes to the elimination of traffic congestion.

Conventionally, in order to alleviate traffic congestion, when a vehicle reaches a position within a predetermined distance from a point where traffic congestion is predicted to occur or a road section, traffic information is acquired, and the congestion occurs at that point or road section. If it does not occur, a message prompting the occupants of the vehicle to maintain the traveling speed of the vehicle is notified, and if congestion occurs, a message urging the occupants of the vehicle to decrease the traveling speed. Is known (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2011-69640

However, the technique described in Patent Document 1 can reduce the traveling speed of a single vehicle before it reaches a traffic jam, avoid being caught in the traffic jam, and shorten the time required to eliminate the traffic jam itself. could not.

On the other hand, traffic jam absorption driving (traffic jam absorption driving) based on the traffic jam absorption theory is known. Congestion absorption driving means, for example, when a traffic jam of 2 km occurs on a highway, a sufficient inter-vehicle distance (40 m or more) is taken from 15 km before the traffic jam occurrence point, and a slow (about 70 km / h) constant speed is obtained. By traveling on the road, the traffic jam is eliminated before reaching the traffic jam occurrence point, and the traffic jam can pass through the traffic jam occurrence point without stopping. Congestion absorption driving is effective not only on expressways but also on general roads. However, even if only one vehicle performs the traffic jam absorption driving, the effect is small, and the time required to eliminate the traffic jam can be shortened by having a plurality of vehicles heading to the congestion occurrence point both perform the traffic jam absorption driving. ..

In view of these circumstances, it is an object of the present invention to provide a server device or the like that realizes that a plurality of moving bodies can both absorb traffic jams and can shorten the time required to eliminate the traffic jam itself. And.

The invention according to claim 1 is a server device connected to a terminal device that moves together with a moving body, and is based on an acquisition means for acquiring traffic jam information related to traffic jam, the traffic jam information, and the position information of the terminal device. , The plurality of moving objects specified by the specific means for the specific means for specifying the plurality of moving objects scheduled to pass through the congestion occurrence point and the terminal devices moving together with the moving objects specified by the specific means. It is characterized in that it is provided with a transmission means for transmitting notification information for notifying that the vehicle is traveling by absorbing traffic congestion.

The invention according to claim 6 is an information processing method using a server device connected to a terminal device that moves together with a moving body, and is an acquisition step for acquiring traffic jam information related to traffic jam, and a traffic jam occurrence point based on the traffic jam information. For each of the terminal devices that move together with the specific step of specifying the plurality of moving objects to be passed through and each of the moving objects specified in the specific step, the plurality of moving objects specified in the specific step absorb the traffic jam. It is characterized by including a transmission step of transmitting notification information for notifying the fact.

The invention according to claim 7 is a computer included in a server device connected to a terminal device that moves together with a moving body, and is scheduled to pass through a traffic jam occurrence point based on the traffic jam information, which is an acquisition means for acquiring traffic jam information. The specific means for specifying the plurality of moving objects of the above, and each of the terminal devices moving together with each of the moving objects specified by the specific means are notified that the plurality of moving objects specified by the specific means are used to absorb traffic congestion. It is characterized in that it functions as a transmission means for transmitting notification information.

It is a block diagram of a server device 1. It is a block diagram of a traffic jam mitigation system S. (A)-(C) is a diagram showing a display example of the message window 501 and the bird's-eye view window 502. It is a block diagram of a server device SV. It is a block diagram of a navigation device NV. It is a flowchart which shows the operation example of the traffic jam mitigation system S.

A mode for carrying out the present invention will be described with reference to FIG.

As shown in FIG. 1, the server device 1 is connected to a terminal device 2 that moves together with a moving body such as a vehicle. Further, the server device 1 includes an acquisition unit 111A, a specific unit 111B, a transmission unit 111C, a determination information acquisition unit 111D, a traffic jam absorbing traveling mobile object determination unit 111E, and an identification information transmission unit 111F. Although the server device 1 is connected to one terminal device 2 in FIG. 1, it is connected to a plurality of terminal devices 2.

The acquisition means 111A acquires traffic jam information regarding the traffic jam. The acquisition unit 111A acquires traffic congestion information from, for example, VICS (registered trademark) (Vehicle Information and Communication System). The traffic jam information includes at least information indicating the location where the traffic jam occurs. The information indicating the location where the traffic jam occurs includes the information indicating the beginning and the end of the traffic jam.

The specifying means 111B identifies a plurality of moving objects scheduled to pass through the congestion occurrence point based on the congestion information and the position information of the terminal device 2. The server device 1 acquires the current location information indicating the current location of the vehicle from the vehicle moving together with the terminal device 2 as position information at any time, and the specific means 111B moves to pass through the congestion occurrence point based on the current location information. Identify the body. For example, when the congestion occurrence point is on the expressway, the identification means 111B identifies a moving body moving toward the congestion occurrence point at a point separated by a predetermined value from the congestion occurrence point. .. The predetermined value may be a value indicating the distance from the congestion occurrence point or a value indicating the required time to the congestion occurrence point. The time required to reach the congestion occurrence point of the moving body can be calculated based on the distance to the congestion occurrence point by acquiring the speed of the moving body from the terminal device 2. Further, the predetermined value may be variably calculated based on the length of the traffic jam (that is, the length from the beginning of the traffic jam to the end of the traffic jam). For example, when the length of the traffic jam is long, the predetermined value is set relatively large, and when the length of the traffic jam is short, the predetermined value is set relatively small.

The transmission means 111C transmits notification information for notifying each terminal device 2 that moves together with each mobile body specified by the specific means 111B that the plurality of mobile bodies specified by the specific means 111B are traveling in a traffic jam absorption manner. .. The traffic jam absorption running is, for example, running while maintaining a speed slower than the current moving speed (for example, when the moving body is moving at 90 km / h, it moves at about 70 km / h). When traveling in a traffic jam absorption manner, it is preferable that the moving body has a sufficient distance (for example, 40 m) of the moving body moving in front (when the moving body is a vehicle, the inter-vehicle distance).

Based on the notification information, the terminal device 2 that has received the notification information from the transmission means 111C notifies the passenger of the moving body that the vehicle is traveling together with the other moving body in a traffic jam absorption manner by using video or voice. The other moving body is a plurality of moving bodies specified by the specific means 111B, excluding the moving body that moves together with the terminal device 2 that performs the notification. As a result, the plurality of moving objects specified by the specific means 111B can both absorb and travel in a traffic jam.

As described above, according to the operation of the server device 1 according to the embodiment, since the passengers of the plurality of moving objects scheduled to pass through the congestion occurrence point are notified that the traffic jam is absorbed and traveled, the plurality of moving objects can be used. In both cases, it is possible to carry out traffic jam absorption driving, and by extension, the time required to eliminate the traffic jam itself can be shortened.

The determination information acquisition unit 111D acquires the determination information used for determining whether the moving body moving together with the terminal device 2 travels by absorbing the traffic jam from the terminal device 2 to which the transmission unit 111C has transmitted the notification information. For example, the passenger performs an input operation on the terminal device 2 corresponding to the case where the vehicle absorbs traffic jams or does not travel due to traffic jams, and the terminal device 2 uses information indicating the input contents as determination information as a server device. It may be transmitted to 1 and the determination information acquisition means 111D may acquire this. Further, the terminal device 2 may transmit the speed information regarding the speed of the moving body to the server device 1 as the determination information, and the determination information acquisition unit 111D may acquire the determination information.

The traffic jam absorbing traveling moving body determining means 111E determines the moving body to be congested absorbing traveling based on the determination information acquired by the determination information acquiring means 111D. When the determination information is information indicating that the vehicle is traveling by absorbing traffic congestion or is not traveling by absorbing traffic congestion, the moving body moving together with the terminal device 2 that has transmitted the determination information indicating that the vehicle is traveling by absorbing traffic congestion is absorbed. Judged as a traveling moving object. Further, when the determination information is the speed information of the moving body, it was detected that the moving body reduced the speed (for example, decelerated from 100 km / h to 70 km / h) based on the speed information. In this case, it is determined that the moving body is a moving body that absorbs traffic congestion.

The identification information transmitting means 111F provides identification information for identifying the traffic jam absorbing traveling moving body determined by the traffic jam absorbing traveling moving body determining means 111E to each terminal device 2 moving together with each moving body specified by the specifying means 111B. Send. Further, the terminal device 2 that has received the identification information notifies the passenger of the moving body moving together with the terminal device 2 of the moving body that absorbs the traffic jam identified based on the identification information by using video or audio. Examples of the identification information include information indicating the type of the moving body, the exterior color of the moving body, the license plate attached to the moving body, and the like. Further, the information may be information indicating the position of the moving body traveling in a traffic jam absorption manner (for example, information indicating a position such as 50 m in front of the left) with reference to the moving body moving together with the terminal device 2.

As a result, identification information indicating which mobile body the traffic-absorbing traveling body is is transmitted to the terminal device 2 of each moving body, and the passenger is notified of the traffic-absorbing traveling body. The passenger of the body can confirm which moving body is traveling by absorbing congestion, and it becomes easier for the moving bodies traveling by absorbing congestion to travel by absorbing congestion as a group.

Further, when the determination information is the speed information of the moving body and the traffic jam absorbing traveling moving body determining means 111E determines the moving body to be congested absorbing traveling based on the speed information, the passenger is in the traffic jam absorbing traveling. It is possible for the server device 1 side to make a judgment without answering whether or not to participate.

Based on the traffic jam information, the transmission means 111C detects recommended information (recommended speed, recommended inter-vehicle distance) for traffic jam absorption driving according to the distance to the traffic jam occurrence point and the length of the traffic jam, and further obtains the recommended information. Send notification information to notify the passenger. The recommended information is preferably detected based on a known congestion absorption theory. In addition, a database may be created in which the distance to the congestion occurrence point, the length of the congestion, etc., the recommended speed, the recommended inter-vehicle distance, etc. are stored in association with each other, and the recommended information may be referred to when the recommended information is detected.

As a result, the passenger of the mobile body can perform the optimum traffic jam absorption running for the traffic jam absorption according to the situation such as the distance to the traffic jam occurrence point and the length of the traffic jam.

When the transmission means 111C detects that the traffic jam has been resolved, the transmission means 111C together with the moving body moving ahead at that time among the plurality of terminal devices 2 that have previously transmitted the notification information based on the position information. In order from the moving terminal device 2, the traffic jam elimination notification information for notifying the passenger of the moving body moving together with the terminal device 2 that the congestion has been resolved is further transmitted.

As a result, when the traffic jam is cleared, the passengers are notified in order from the vehicle traveling in front of the moving objects that move together with the terminal device 2 to which the notification information is transmitted, so that the traffic jam is absorbed. It is possible to prevent accidents that occur when a plurality of moving vehicles that have been traveling accelerate at the same time as the traffic jam is cleared.

Next, specific examples corresponding to the above-described embodiments will be described.

Examples will be described with reference to FIGS. 2-. The examples described below are examples when the present invention is applied to the congestion mitigation system S.

As shown in FIG. 2, the congestion mitigation system S of this embodiment includes an in-vehicle navigation device NV (an example of a "terminal device"; hereinafter, may be referred to as a "navigation device NV") mounted on a vehicle and a server device. It is configured to include an SV (an example of a "server device"; hereinafter, may be referred to as a "server device SV"). The navigation device NV can be connected to the server device SV via the network NW. Although FIG. 2 shows only one navigation device NV, the traffic jam mitigation system S is configured to include a plurality of navigation devices NV.

The traffic congestion mitigation system S of the present embodiment accelerates traffic congestion by encouraging a plurality of vehicles scheduled to pass through the congestion occurrence point when traffic congestion occurs on the expressway to absorb the traffic congestion in a group. To avoid getting caught in traffic jams.

The server device SV acquires traffic jam information from VICS, etc., identifies multiple vehicles traveling 15 km before the traffic jam occurrence point, and prompts the group to perform traffic jam absorption driving start message. (An example of "notification information") is sent. The vehicle navigation device NV specified by the server device SV confirms with the driver of the own vehicle (an example of a "passenger") whether or not to participate in the traffic congestion absorption driving in a group, and participates. A participation / non-participation message (an example of "judgment information") indicating whether or not to do so is returned to the server device SV.

In addition, when the driver of the own vehicle participates in the traffic jam absorption driving, the navigation device NV starts the traffic jam absorption driving guide, takes an inter-vehicle distance of 40 m or more with respect to the driver, and has a speed of 70 km / h. Encourage you to hold and drive. At this time, the navigation device NV detects the speed of the own vehicle, and if the speed is faster than 70 km / h, a message instructing the message window 501 to slow down is sent to the message window 501, for example, as shown in FIG. 3A. If the speed is slower than 70 km / h, a message instructing to increase the speed is displayed in the message window 501. Further, the navigation device NV detects the inter-vehicle distance between the own vehicle and the vehicle in front, and when the inter-vehicle distance is shorter than 40 m, the inter-vehicle distance is increased in the message window 501, for example, as shown in FIG. 3 (B). Display a message instructing. When the own vehicle is traveling at an appropriate speed and inter-vehicle distance, the navigation device NV displays a message instructing the vehicle to travel as it is in the message window 501, for example, as shown in FIG. 3C. ..

On the other hand, when the server device SV receives a participation / non-participation message indicating that the driver has announced that he / she has participated in the traffic jam absorption driving, the server device SV acquires identification information for identifying the vehicle of the navigation device NV that is the transmission source. Send to another navigation device NV. Then, the navigation device NV notifies the driver by displaying the vehicle expressing the intention to participate based on the identification information on the display. For example, as shown in FIGS. 3A-C, the bird's-eye view window 502 includes an own vehicle icon 503 representing the own vehicle, a participating vehicle icon 504 representing the participating vehicle expressing participation in the traffic jam absorption driving, and the like. A non-participating vehicle icon 505 representing a non-participating vehicle that has not announced participation in the traffic jam absorption driving is displayed. According to the bird's-eye view window 502, the driver can grasp the participating vehicles at a glance, and can grasp the positional relationship between the own vehicle, the participating vehicles, and the non-participating vehicles, which makes it easier for the driver to perform traffic congestion absorption driving in a group. As a result, the time required to eliminate the traffic jam can be shortened.

[1. Configuration of server device SV]
Next, the configuration of the server device SV according to this embodiment will be described with reference to FIG. As shown in FIG. 4, the server device SV is roughly classified into a control unit 311, a storage unit 312, a communication unit 313, a display unit 314, and an operation unit 315.

The storage unit 312 is configured by, for example, a hard disk drive or the like, and stores an OS (Operating System), a server program, and various data. Further, the storage unit 312 stores the client information received from each navigation device NV. The client information is information indicating the vehicle type of the vehicle equipped with the navigation device NV, the vehicle registration number (character string displayed on the license plate), the current position, the route being guided, the speed, etc. Updated with information received from.

Further, the storage unit 312 stores the traffic jam information regarding the traffic jam. As the traffic jam information, information acquired from VICS or the like can be used. Further, the data may be created by integrating the travel history data (information indicating the travel route, travel speed, etc.) acquired from each navigation device NV. For example, if a plurality of vehicles are moving at substantially the same point but the traveling speed is 0 to 5 km / h, it is determined that a traffic jam is occurring at that point and traffic jam information is created. Can be done.

The communication unit 313 connects to the network NW and controls the communication state with a server device or the like that holds congestion information such as a navigation device NV or VICS.

The display unit 314 is composed of, for example, a liquid crystal display or the like, and is designed to display information such as characters and images.

The operation unit 315 is composed of, for example, a keyboard, a mouse, or the like, and receives an operation instruction from an operator and outputs the instruction content as an instruction signal to the control unit 311.

The control unit 311 is composed of a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. Then, the CPU realizes various functions by reading and executing various programs stored in the ROM and the storage unit 312.

Based on the traffic jam information and the client information stored in the storage unit 312, the control unit 311 identifies a plurality of vehicles scheduled to pass through the traffic jam occurrence point as vehicles for traffic jam absorption traveling. Specifically, the control unit 311 identifies a vehicle traveling in the vicinity of a point where the distance to the point where the traffic jam occurs is 15 km. Further, the control unit 311 causes each navigation device NV mounted on each of the specified vehicles to notify the driver of the vehicle equipped with the navigation device NV that the specified plurality of vehicles are traveling together to absorb traffic congestion. Congestion absorption Send a driving start message.

Further, the control unit 311 acquires a participation / non-participation message used for determining whether or not the vehicle is traveling in a traffic jam absorption from the navigation device NV that has previously transmitted the traffic jam absorption driving start message, and determines the vehicle in the traffic jam absorption driving. .. Then, the control unit 311 transmits the identification information for identifying the vehicle that absorbs the traffic jam to the navigation device NV mounted on the plurality of vehicles specified above. The identification information in the embodiment includes external appearance information indicating the appearance of the vehicle such as the type of vehicle, the exterior color of the vehicle, and the license plate attached to the vehicle, and the vehicle equipped with the navigation device NV to which the identification information is transmitted. Includes relative position information indicating the relative position as a reference.

[2. Navigation device NV configuration]
Next, the configuration of the navigation device NV according to the present embodiment will be described with reference to FIG. As shown in FIG. 5, the navigation device NV includes a control unit 211, a storage device 212 including an HDD, an input device 213 including a keyboard or a remote controller, a touch panel, and the like, a display unit 214, and a bus line 215. It is configured to include an input / output interface unit 220, a vehicle speed sensor 221, an angular speed sensor 222, an acceleration sensor 223, a steering angle sensor 224, a GPS receiving unit 225, a data transmitting / receiving unit 226, and a wireless communication unit 227. There is.

The vehicle speed sensor 221 detects the current speed of the vehicle by using, for example, a speed detection process using a vehicle speed pulse or the like acquired from a vehicle equipped with a navigation device NV, and outputs speed data. The angular velocity sensor 222 detects, for example, the angular velocity of the vehicle, for example, a change in direction, and outputs angular velocity data and relative orientation data per unit time. The acceleration sensor 223 detects, for example, the acceleration of the vehicle in the front-rear direction, and outputs acceleration data or the like per unit time. The steering angle sensor 224 detects the steering angle of the vehicle and outputs steering angle data and the like. The GPS receiving unit 225 receives the navigation radio waves from the GPS satellites, and outputs the latitude, longitude, altitude data, the absolute orientation data in the traveling direction of the vehicle, the GPS speed data, and the like, which are the position information of the own vehicle, as GPS positioning data. The data transmission / reception unit 226 performs processing related to transmission / reception of data to / from the server device via the network. The wireless communication unit 227 performs processing related to wireless road-to-vehicle communication and vehicle-to-vehicle communication.

The storage device 212 stores various programs such as an operating system and an application program. The various programs may be acquired from a server device or the like via a network, or may be read from a recording medium such as a CD, DVD, or USB memory.

Further, the storage device 212 stores map image data for displaying a map on the display unit 214, map information used when searching for a route, road link information, and the like.

Further, the storage device 212 stores client information to be transmitted to the server device SV. Of the client information stored in the storage device 212, information indicating the current position, the route being guided, the speed, etc. other than the vehicle type of the vehicle equipped with the navigation device NV and the vehicle registration number is updated by the control unit 211 at any time. Will be done.

The input device 213 is composed of a touch panel, a keyboard, a mouse, another controller, and the like, receives an input operation of a user, and transmits an operation signal indicating the operation content to the control unit 211.

The display unit 214 displays various display data under the control of the control unit 211. The display unit 214 includes a graphics controller 214a, a buffer memory 214b made of a memory such as VRAM (Video RAM), a display 214c made of a liquid crystal display or the like, and the like. In this configuration, the graphics controller 214a controls the entire display unit 214 based on the control data sent from the control unit 211 via the bus line 215. Further, the buffer memory 214b temporarily stores image information that can be displayed immediately. Then, the image is displayed on the display 214c based on the image data output from the graphics controller 214a.

The control unit 211 includes a CPU 211a that controls the entire control unit 211, a ROM 211b that stores a control program that controls the control unit 211 in advance, and a RAM 211c that temporarily stores various data. The control unit 211 is connected to the vehicle speed sensor 221, the angular velocity sensor 222, the acceleration sensor 223, the steering angle sensor 224, and the GPS receiving unit 225 via the bus line 215 and the input / output interface unit 220, and is output from each. Based on speed data, angular velocity data and relative orientation data, steering angle data, GPS positioning data, absolute orientation data in the traveling direction of the vehicle, acceleration data, etc., the entire navigation device NV is controlled, and various display units such as the display unit 214 are controlled. It controls the movement of each component.

When the control unit 211 receives the congestion absorption travel start message from the server device SV, the control unit 211 displays the congestion absorption travel participation inquiry screen (not shown) on the display 214c of the display unit 214. On the traffic jam absorption driving participation inquiry screen, the message "Do you want to drive in a traffic jam absorption?" Is displayed, and the "participation" button and the "non-participation" button are displayed. Then, the control unit 211 transmits to the server SV a participation / non-participation message indicating that the traffic jam absorption run or the traffic jam absorption run is not performed depending on which button is selected by the driver. The control unit 211 outputs a message "Do you want to drive in a traffic jam?" From a speaker (not shown), and the driver's "yes" or "no" voice is a microphone (not shown). It may be possible to send a participation / non-participation message indicating that the vehicle does not absorb the traffic jam or does not travel by absorbing the traffic jam based on the input to the server SV.

Further, when the control unit 211 receives the identification information from the server device SV, the control unit 211 displays / updates the bird's-eye view window 502 shown in FIG. 3 based on the identification information.

In the bird's-eye view window 502, an image in which the own vehicle icon 503, the participating vehicle icon 504, and the non-participating vehicle icon 505 are arranged based on the received identification information and the information indicating the current position of the own vehicle stored in the storage device 212. Is displayed. Specifically, the control unit 211 determines the positions of the own vehicle icon 503, the participating vehicle icon 504, and the non-participating vehicle icon 505 based on the relative position information included in the received identification information. Furthermore, for the vehicle in front that appears in the image taken by the front camera (not shown) installed in the own vehicle, the appearance information (type of vehicle, exterior color of the vehicle, number installed in the vehicle) included in the identification information is included. It is possible to display more accurately by specifying whether the vehicle is a participating vehicle or a non-participating vehicle by image recognition processing based on information indicating the appearance of the vehicle such as a plate). The control unit 211 sends a message such as "a vehicle traveling in front of the vehicle is a participating vehicle" or a message such as "a vehicle traveling 10 m ahead of the right lane is a non-participating vehicle" (not shown). ) May be used to notify the driver of the participating vehicle and the non-participating vehicle.

[3. Operation example of traffic jam mitigation system S]
Next, an operation example of the congestion mitigation system S will be described with reference to the flowchart of FIG. The traffic jam information and client information stored in the storage unit 312 of the server device SV shall be updated at any time. Further, in order to distinguish between the navigation device NV that receives the traffic jam absorption running start message and newly starts the traffic jam absorbing running guide and the navigation device NV that is executing the traffic jam absorbing running guide, the former is referred to as a navigation device NV1. The latter is referred to as a navigation device NV2.

First, the control unit 311 of the server device SV detects the occurrence of traffic congestion based on the traffic congestion information stored in the storage unit 312 (step S11A).

Next, the control unit 311 is a vehicle that passes through the traffic jam occurrence point based on the information indicating the route being guided and the current position included in the client information stored in the storage unit 312, and is from the traffic jam occurrence point. A plurality of vehicles traveling in the vicinity of 15 km before are identified (step S12A).

Next, the control unit 311 transmits a traffic jam absorption traveling start message to a plurality of vehicles specified in the process of step S12A (step S13A).

On the other hand, when the control unit 211 of the navigation device NV1 receives the congestion absorption travel start message (step S11B), the display 214c of the display unit 214 displays the congestion absorption travel participation inquiry screen (not shown) (step S12B). Then, the control unit 211 waits until either the "participation" button or the "non-participation" button is selected (step S13B: NO), and detects that the "participation" button or the "non-participation" button is selected. (Step S13B: YES), the participation / non-participation message is transmitted to the server device SV (step S14B). Specifically, the control unit 211 sends a participation / non-participation message indicating that the vehicle will absorb the traffic jam when the "participation" button is selected, and does not perform the traffic jam absorption driving when the "non-participation" button is selected. Send a non-participation message indicating that.

On the other hand, when the control unit 311 of the server device SV receives the participation / non-participation message from the navigation device NV1 (step S14A), the vehicle equipped with the navigation device NV1 based on the participation / non-participation message is the vehicle participating in the traffic jam absorption running. It is determined whether the vehicle is a non-participating vehicle or a non-participating vehicle (step S15A). Next, the control unit 311 records the determination result in the storage unit 312 (step S16A). This process is performed every time a participation / non-participation message is received from the navigation device NV. That is, by referring to the accumulated records, the control unit 311 can grasp whether all the vehicles equipped with the navigation device NV that has transmitted the participation / non-participation message are participating vehicles or non-participating vehicles.

Next, the control unit 311 determines whether or not the vehicle that is the source of the participation / non-participation message received in the process of step S14A is a participating vehicle (step S17A). At this time, if it is determined that the vehicle is not a participating vehicle (step S17A: NO), the control unit 311 ends the process in the flowchart. On the other hand, when the control unit 311 determines that the vehicle is a participating vehicle (step S17A: YES), the control unit 311 uses the identification information as a navigation device based on the determination result (see step S16A) recorded in the storage unit 312 up to that point. It is transmitted to NV1 (step S18A), and the process proceeds to step S19. That is, the control unit 311 transmits the congestion absorption running start message to the plurality of navigation devices NV in the process of step S13A, and receives the participation / non-participation message from the navigation device NV1 in the process of step S14A. The identification information that identifies the vehicle for which participation has been announced is collectively transmitted to the navigation device NV1. Thereby, on the navigation device NV1 side, it is possible to identify which vehicle is the vehicle for which participation has been announced.

On the other hand, if the own vehicle does not participate in the traffic jam absorption running after the processing of step S14B, the control unit 211 of the navigation device NV1 ends the processing in the flowchart (step S15B: NO). On the other hand, when the own vehicle participates in the traffic jam absorption running (step S15B: YES), the control unit 311 is waiting to receive the identification information from the server device SV, and when the own vehicle receives the identification information (step S16B). ), Start the traffic jam absorption driving guide (step S17B). Specifically, the control unit 211 displays a message in the message window 501 in the display 214c of the display unit 214 indicating that the vehicle is traveling at a speed of 70 km / h and that the inter-vehicle distance is 40 m, and the bird's-eye view window 502 displays a message indicating that the vehicle is traveling at a speed of 40 m / h. , The own vehicle icon 503, the participating vehicle icon 504, and the non-participating vehicle icon 505 are displayed based on the identification information. That is, the vehicles that have already announced their participation by that time are represented by the participating vehicle icon 504.

On the other hand, the control unit 311 of the server device SV participates in the process of step S14A with respect to the navigation device NV (for example, the navigation device NV2) that has transmitted the participation / non-participation message indicating participation so far in the process of step S19A. Identification information indicating that the vehicle equipped with the navigation device NV1 that has transmitted the non-participation message is a participating vehicle is transmitted (step S19A). The control unit 311 may transmit the identification information to the navigation device NV mounted on each vehicle specified in the process of step S12A.

On the other hand, when the control unit 211 of the navigation device NV2 (navigation device NV that has already started the traffic jam absorption driving guide) receives the identification information from the server device SV (step S31B), the bird's-eye view window 502 is updated (step S31B). Step S32B), the process in the flowchart is terminated. Specifically, the control unit 211 displays an icon (this newly joined vehicle) of a vehicle (newly joined vehicle) indicating that it is a participating vehicle by the identification information received in the process of step S31B in the bird's-eye view window 502 that is already displayed. If the non-participating vehicle icon 505) is displayed at this time, the icon is updated to the participating vehicle icon 504.

As described above, the server device SV (an example of the "server device") connected to the navigation device NV (an example of the "terminal device") that moves together with the vehicle (an example of the "moving body") according to the present embodiment is The control unit 311 (an example of "acquisition means", "specific means", and "transmission means") acquires traffic jam information and passes through the traffic jam occurrence point based on the traffic jam information and the position information of the navigation device NV. For each navigation device NV that identifies a plurality of planned vehicles and moves with each of the specified vehicles, the driver of the vehicle that moves with the navigation device NV is informed that the specified multiple vehicles travel together to absorb traffic congestion. Sends a traffic jam absorption driving start message (an example of "notification information") to be notified.

Therefore, according to the server device SV according to the present embodiment, the drivers of the plurality of vehicles scheduled to pass through the congestion occurrence point are notified that the traffic jam absorption travels, so that the plurality of vehicles both perform the congestion absorption travel. This can be achieved, and the time required to eliminate the traffic congestion itself can be shortened.

Further, the control unit 331 of the server device SV according to this embodiment (an example of "judgment information acquisition means", "traffic jam absorption traveling vehicle determination means", and "identification information transmission means") transmits a traffic jam absorption travel start message. A participation / non-participation message (an example of "judgment information") used for determining whether or not a vehicle moving together with the navigation device NV travels by absorbing traffic congestion is acquired from the navigation device NV, and based on the acquired participation / non-participation message, the vehicle does not participate. Determine the vehicle to be congested and absorbed, and identify the participating vehicles participating in the previously determined (see step S15A) for each navigation device NV that moves with each vehicle identified earlier (see step S12A). Send the identification information. On the other hand, the control unit 211 of the navigation device NV displays the participating vehicle in the bird's-eye view window 502, which is identified based on the received identification information, for the driver of the vehicle moving together with the navigation device NV. Shown by 504 and notified. As a result, identification information indicating which vehicle is the vehicle that absorbs the traffic jam is transmitted to the navigation device NV of each vehicle, and the vehicle that absorbs the traffic jam is notified to the driver. It is possible to confirm whether the vehicle is traveling by absorbing traffic congestion, and it becomes easier for the vehicles traveling by absorbing traffic congestion to travel by absorbing traffic congestion as a group.

In this embodiment, the traffic congestion on the expressway has been described, but the traffic congestion on the general road can also be applied.

[4. Modification example]
Next, a modification of the above embodiment will be described. The modifications described below can be combined as appropriate.

[4.1. Modification 1]
In the above embodiment, the control unit 311 of the server device SV is configured to specify a plurality of vehicles traveling 15 km before the congestion occurrence point as vehicles that promote the congestion absorption traveling in a group, but depending on other conditions. It may be configured to specify a vehicle that promotes traffic congestion absorption driving in a group. For example, it may be possible to identify a plurality of vehicles whose estimated arrival time at the congestion occurrence point is 11 minutes later.

Further, the storage unit 312 stores the specific information for specifying the vehicle that promotes the traffic jam absorption driving for each condition, and the control unit 311 may specify the vehicle that promotes the traffic congestion absorption driving based on the specific information. good. The conditions include the type of road where the traffic jam occurs (expressway or general road), whether the traffic jam is at a frequent traffic jam point, the distance to the traffic jam point, and the scale (length) of the traffic jam. .. For each of these conditions, specify information for identifying a vehicle such as "a vehicle traveling pkm before the traffic jam occurrence point" or "a vehicle whose expected arrival time at the traffic jam occurrence point is q minutes later". It may be used as information.

[4.2. Modification 2]
In the above embodiment, it was decided to encourage a group of vehicles traveling 15 km before the congestion occurrence point to absorb the congestion. For example, a vehicle traveling 20 km before the congestion occurrence point and a congestion occurrence point. A plurality of groups may be specified, such as a vehicle traveling 40 km in front of the vehicle, and congestion absorption driving may be promoted for each group.

In addition, the recommended method of traffic jam absorption driving (recommended speed, recommended speed) suitable for early elimination of traffic jams according to the distance to the traffic jam occurrence point (how close you are driving), road type, and traffic jam scale. Since the recommended inter-vehicle distance) is different, the driver may be notified of the recommended speed and the recommended inter-vehicle distance according to each condition. Specifically, the storage unit 312 stores recommended information indicating the recommended speed and the recommended inter-vehicle distance according to the road type, the scale of the traffic jam, the distance to the traffic jam occurrence point, etc., and the control unit 311 responds to the conditions. The recommended speed and the recommended inter-vehicle distance may be detected and transmitted to the navigation device NV together with the traffic jam elimination driving start message. In this case, the navigation device NV displays the recommended speed and the recommended inter-vehicle distance on the message window 501 or the like. For example, for a vehicle traveling 20 km before the traffic jam occurrence point, a message window 501 is displayed indicating that the vehicle is traveling at a distance of 40 m at 70 km / h, and for a vehicle traveling 40 km before the traffic jam occurrence point. Displays in the message window 501 that the vehicle travels at 60 km / h with a distance between vehicles of 35 m. As a result, it is possible to notify the driver of the vehicle of the recommended speed and the recommended inter-vehicle distance suitable for alleviating the traffic jam according to the situation such as the distance to the traffic jam occurrence point and the length of the traffic jam.

[4.3. Modification 3]
In the above embodiment, the control unit 311 of the server device SV determines whether or not the vehicle participates in the traffic jam absorption driving in step S15A of FIG. 6 based on the participation / non-participation message from the navigation device NV. Instead of this, the determination may be made based on the change in the speed of the vehicle on which the navigation device NV is mounted. Specifically, the control unit 311 refers to the information indicating the speed included in the client information of the storage unit 312 which is updated from time to time, and the vehicle reduces the speed (for example, from 100 km / h to 70 km / h). When it is detected that the vehicle has been decelerated), the vehicle is determined as a participating vehicle. Further, the control unit 311 may determine the vehicle as a participating vehicle when the speed of the vehicle is reduced by a reference speed or more (for example, 30 km / h or more). In this case, the information from the navigation device NV used for updating the information indicating the speed included in the client information is an example of "determination information" used for determining whether or not the vehicle is traveling by absorbing traffic congestion. In this way, by determining whether or not the vehicle is a participating vehicle based on the speed change of the vehicle, the driver does not have to answer whether or not to participate in the traffic jam absorption driving, and concentrates on the driving operation. It leads to the prevention of accidents.

[4.4. Modification 4]
The control unit 311 of the server device SV may be configured to transmit an end message indicating that the traffic jam is cleared when the traffic jam is cleared to all the navigation devices NV mounted on the participating vehicles. At this time, when the navigation device NV receives the end message, it notifies the driver that the traffic jam has been resolved. For example, a message indicating that the traffic jam has ended is displayed on the display 214c of the display unit 214. As a result, the driver can recognize that the traffic jam has been eliminated.

Further, when the control unit 311 transmits the end message, it is preferable to transmit the end message in order from the vehicle traveling ahead in the group. Specifically, when the control unit 311 detects that the traffic jam has been resolved, the control unit 311 sends a traffic jam absorption running start message based on the information indicating the current position (an example of "position information") included in the client information. Of the multiple transmitted navigation device NVs, the congestion has been resolved for the driver of the vehicle equipped with the navigation device NV in order from the navigation device NV mounted on the vehicle traveling ahead at that time. Send an end message to notify (an example of "congestion resolution notification information"). As a result, it is possible to prevent the driver who recognizes that the traffic jam has been cleared from sudden acceleration and a dangerous situation in which the vehicle behind the vehicle overtakes the vehicle in front.

[4.5. Modification 5]
In the above embodiment, which vehicle is the participating vehicle is represented by the participating vehicle icon 504 in the bird's-eye view window 502 shown in FIG. 2, but instead of this, for example, an image taken by a camera installed in the vehicle is used. It is determined to be displayed on the display 214c of the display unit 214, and information indicating that the vehicle is traveling by absorbing traffic congestion is superimposed and displayed on the vehicle that is traveling by absorbing traffic congestion (for example, a color is displayed on the moving body). It may be attached or a blowout (displayed as "participating vehicle" in the blowout).

[4.6. Modification 6]
In the above embodiment, during the traffic jam absorption driving guide, the control unit 311 of the navigation device NV detects the speed of the own vehicle and displays a message instructing to slow down when the speed is faster than 70 km / h. Or, it was decided to detect the inter-vehicle distance between the own vehicle and the vehicle in front, and if the inter-vehicle distance is shorter than 40 m, display a message instructing to increase the inter-vehicle distance. May be performed by the server device SV. Specifically, when the control unit 311 monitors the client information of each participating vehicle recorded in the storage unit 312 and detects a vehicle having a speed higher than 70 km / h, the navigation mounted on the vehicle is used. Instruction information is transmitted to the device NV so as to reduce the speed. Further, the inter-vehicle distance of each vehicle is calculated based on the information indicating the current position included in the client information, and when a vehicle having an inter-vehicle distance shorter than 40 m is detected, the navigation device NV mounted on the vehicle is used. On the other hand, instruction information indicating that the inter-vehicle distance should be increased is transmitted to the navigation device NV.

When the scale of the traffic jam changes, the instruction information may be changed according to the change. For example, when the length of the traffic jam is 2 km and the vehicle is urged to travel at 70 km / h, when the length of the traffic jam is increased to 20 km, the vehicle may be urged to travel at 50 km / h. As a result, it is possible to present the optimum method of traffic jam absorbing driving to the driver of the traffic jam absorbing running according to the change in the scale of the traffic jam.

1 Server device 111A Acquisition means 111B Specific means 111C Transmission means 111D Judgment information acquisition means 111E Congestion absorption traveling moving body determination means 111F Identification information transmission means 2 Terminal device NV navigation device 211 Control unit 211a CPU
211b ROM
211c RAM
212 Storage device 213 Input device 214 Display unit 214a Graphics controller 214b Buffer memory 214c Display 215 Bus line 220 Input / output interface unit 221 Vehicle speed sensor 222 Angle speed sensor 223 Acceleration sensor 224 Steering angle sensor 225 GPS receiver 226 Data transmission / reception unit 227 Wireless communication SV server device 311 Control unit 312 Storage unit 313 Communication unit 314 Display unit 315 Operation unit 501 Message window 502 Bird's-eye view window 503 Own vehicle icon 504 Participating vehicle icon 505 Non-participating vehicle icon

Claims (1)

A server device that connects to a terminal device that moves with a mobile body.
An acquisition method for acquiring traffic congestion information related to traffic congestion,
Based on the traffic jam information and the position information of the terminal device, a specific means for identifying a plurality of moving objects scheduled to pass through the traffic jam occurrence point, and
A transmission means for transmitting notification information to notify each terminal device that moves together with each moving body specified by the specific means that the plurality of moving bodies specified by the specific means are traveling in a traffic jam absorption manner.
A server device characterized by being equipped with.

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