JP5668643B2 - Map display system, server, and terminal - Google Patents

Description

  The present invention relates to a map display system and the like for displaying a map image in which a current location of each terminal is displayed on a plurality of terminals carried by a user or mounted on a vehicle.

  A road traffic information system (VICS (registered trademark)) that eliminates or alleviates traffic congestion and improves the convenience of drivers is known. In this VICS, the traffic volume of the vehicle is detected by an infrastructure such as an optical beacon provided on the road, and traffic information on each road is generated at the information center based on the detected traffic volume. Then, this traffic jam information, traffic regulation information on each road, etc. are transmitted to the navigation device mounted on the vehicle via an optical beacon, FM multiplex broadcasting, etc. Road congestion information and traffic regulation information are displayed.

  However, the infrastructure used for detecting the traffic volume is provided only on main roads, and traffic information on all roads cannot be obtained even if VICS is used. In addition, traffic information provided by VICS is part of the information required for driving, and the driver pays attention to various things such as other vehicles and pedestrians while driving. I need to pay.

  On the other hand, in Patent Document 1, the prediction result about the behavior of the host vehicle is presented to the driver to determine its validity, and only the prediction result determined to be valid is transmitted to other vehicles, and the same A driving support device that receives and presents a prediction result of the behavior of another vehicle determined to be appropriate by the method is described.

Japanese Patent No. 4239841

According to the driving support device described in Patent Literature 1, it is possible to present a highly accurate prediction result about the behavior of another vehicle, and it is possible to perform smooth driving.
However, even if the driving support device described in Patent Document 1 is used, the driver cannot grasp the position and behavior of the pedestrian. Further, in this driving support device, communication is performed between vehicles without using an infrastructure such as an optical beacon, so that the prediction result can be exchanged only with vehicles near the own vehicle. For this reason, as in the case of using VICS, traffic conditions over a wide range cannot be grasped, and traffic jams cannot be avoided.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a map display system capable of providing driving support in consideration of the presence of pedestrians in the vicinity of the host vehicle, regardless of the location where the vehicle is running. To do.

  The invention according to claim 1, which has been made in view of the above problems, includes a plurality of terminals used in a state of being mounted on a vehicle or carried by a user, a current location of the terminal, and use of the terminal The present invention relates to a map display system having a server that generates map image data for displaying a map image representing the state of the above.

In this map display system, a server includes a server-side communication unit that communicates with a terminal via a wireless communication network, and a terminal that indicates the current location and use status of the terminal from a plurality of terminals via the server-side communication unit. Traffic control information for acquiring server side acquisition means for acquiring information and traffic control information that can identify at least one of a traffic light state and a level crossing state provided in an area that can be represented as a map image Based on the acquisition means, the map data, the terminal information, and the traffic control information, it is a map image of the area including the current location of any one of the terminals , and the status of the traffic light and the level crossing provided in the area Server-side generating means for generating map image data for displaying at least one of them as map image data corresponding to the terminal. Moreover, the server side transmission means which transmits the map image data produced | generated by the server side production | generation means to the terminal corresponding to this map image data via a server side communication means is provided.

The terminal also includes a terminal-side communication unit that communicates with the server via the wireless communication network, a current location detection unit that detects the current location of the own device, and the current location and use status of the own device detected by the current location detection unit. Terminal-side transmission means for transmitting terminal information to the server via the terminal-side communication means, and terminal-side acquisition means for acquiring map image data corresponding to the own device from the server via the terminal-side communication means, Display means for displaying a map image indicating at least one of a traffic light state and a level crossing state provided in an area including the current location of the own device based on the map image data acquired by the terminal side acquisition unit; Is provided.

  According to such a configuration, the current location of each terminal is accumulated in the server via the wireless communication network without using the infrastructure provided on the road such as an optical beacon, and is generated by the server in each terminal. Based on the map image data, a map image representing the current location of a vehicle or a pedestrian existing in the vicinity of the host vehicle is displayed. For this reason, the driver can easily grasp the degree of congestion on the road regardless of the place where the vehicle is traveling.

  In the conventional VICS, traffic information is provided from the information center to the navigation device, and the navigation device generates a map image based on the map data and displays the traffic information of each road on the map image. It was. On the other hand, in the invention described in claim 1, since map image data is generated based on the map data by the server and transmitted to the terminal, it is not necessary to provide the map data in the terminal, and the terminal can be downsized. It becomes.

  Therefore, it goes without saying that it can be mounted on a vehicle, and the terminal can be configured as, for example, a mobile phone or a smartphone, and can be carried by the user. Accordingly, a map image representing the position of the pedestrian in addition to the vehicle can be displayed on the terminal, and the driver can easily grasp the presence of the vehicle or the pedestrian located in the blind spot.

As described above, according to the map display system of the first aspect, it is possible to perform the driving support in consideration of the presence of the pedestrian in the vicinity of the own vehicle regardless of the place where the vehicle is traveling.
Furthermore, by configuring the map image data as data in a general-purpose format (for example, a format in which a map image can be displayed on a web browser), the map image can be easily displayed on more devices regardless of the manufacturer. It can be displayed. As a result, more devices can be configured as terminals in the map display system, allowing more users to carry the terminals, and thus more pedestrians can be displayed on the map image, thereby providing more appropriate driving assistance. Can be performed.
In addition, since the driver can grasp the signal state and the level crossing at an intersection in the vicinity of the host vehicle at an early stage, it is possible to avoid waiting for a signal and a level crossing, and to reduce stress during driving. . In addition, the number of times the vehicle is stopped and restarted can be reduced, and the fuel consumption of the vehicle can be reduced.

In the map display system, the following information may be displayed on the map image in addition to the current location of the terminal and the state of use.
That is, as described in claim 2, the terminal that is used while mounted on the vehicle further includes vehicle type determination means for determining the type of the vehicle on which the device is mounted, and transmits on the terminal side. The means transmits terminal information further indicating the type of the vehicle determined by the vehicle type determination means, and the server side generation means further determines the type of the vehicle on which the terminal according to the current location is mounted based on the terminal information. Map image data for displaying a map image to be shown may be generated.

  The type of vehicle may be a type based on the size of the vehicle or the number of wheels, such as a motorcycle, a light vehicle, or an ordinary vehicle, or based on a use such as a bus, a taxi, or a private car. It may be of a type. Moreover, the model of a vehicle may be sufficient.

  According to such a configuration, the driver can early discover a motorcycle that exists in the blind spot of the own vehicle, a motorcycle that approaches rapidly from the rear, and the like, and can perform more appropriate driving in accordance with this.

  In addition, as described in claim 3, the terminal that is used while being carried by the user further includes a user discriminating unit that discriminates the characteristics of the user carrying the device, and the terminal-side transmitting unit includes: The terminal information further indicating the characteristics of the user determined by the user determination means is transmitted to the server, and the server-side generation means further determines the user characteristics of the user carrying the terminal according to the current location based on the terminal information. Map image data for displaying a map image to be shown may be generated.

Note that the user's characteristics may be, for example, those related to the user's age (especially whether the child is an infant or an elderly person), the presence / absence of an injury, illness, disorder, and the like.
According to such a configuration, the driver can quickly recognize that there are traffic weak persons who are likely to be damaged by traffic accidents in the vicinity of the vehicle based on the map image. It becomes possible to drive while.

In addition, it is considered that the driver can drive more smoothly by accurately grasping the moving direction, moving speed, route, etc. of other vehicles and pedestrians.
Therefore, as described in claim 4, the terminal further includes a movement state determination unit that determines a movement state of the user carrying the device or the vehicle on which the device is mounted, and the terminal side transmission unit Transmits to the server terminal information further indicating the movement state determined by the movement state determination means, and the server-side generation means, based on the terminal information, the user carrying the terminal according to the current location, or the terminal You may produce | generate the map image data for displaying the map image which further shows the movement state of the mounted vehicle.

Note that the moving state may be, for example, any of a user carrying the terminal or a moving direction, moving speed, and acceleration of a vehicle on which the terminal is mounted.
In addition, as described in claim 5, the terminal further includes a route discriminating unit that discriminates an expected course of the user carrying the device or the vehicle on which the device is mounted, The terminal information further indicating the expected course determined by the course discriminating means is transmitted to the server, and the server-side generating means is based on the terminal information, or the user carrying the terminal according to the current location or the terminal is mounted. Map image data for displaying a map image that further shows the expected course of the current vehicle is generated.

  According to such a configuration, the driver can easily and accurately grasp the moving direction, moving speed, predicted course, and the like of other vehicles and pedestrians around the host vehicle. For this reason, the driver can detect other vehicles, pedestrians approaching the vehicle, pedestrians passing left or right, or pedestrians passing through a pedestrian crossing at an early stage, enabling smoother driving. In addition, the movement of other vehicles and pedestrians is not hindered.

Furthermore, the terminal can detect and warn of a vehicle or a pedestrian that is approaching the device itself, or can detect and warn of a vehicle that deviates from traffic rules such as overspeed .

  The road is provided with road signs for displaying traffic rules such as speed limit and overtaking prohibition, various warnings regarding slips, strong winds, etc., and guidance to a specific place or region. In some cases, highway roads and main arterial roads are provided with road information bulletin boards for notifying construction advance notices, accidents, and the like using electronic bulletin boards.

Therefore, as described in claim 6 , the server is configured such that a traffic rule when a vehicle travels on a road provided in an area that can be represented as a map image, traffic regulation on the road, and travel on the road. The vehicle may further include traffic information acquisition means for acquiring traffic information indicating at least one of guidance to the driver of the vehicle to be driven and warning to the driver. Then, the server-side generating means displays a map image that further includes at least one of traffic rules, traffic regulations, guidance, and warnings for roads in an area including the current location of the terminal, further adding traffic information. The map data may be generated.

  The traffic regulation means that when a construction, accident, event, disaster, etc. occurs, the passage of a specific road section is prohibited, and the speed, traffic weight, driving lane, etc. in the road section are restricted. means.

  According to such a configuration, the driver can grasp the contents of the road signs and road information bulletin boards provided on the traveling road via the terminal, and the convenience can be improved. Furthermore, the driver can quickly understand the traffic regulations that are being caused by construction, accidents, events, disasters, etc. on the road near the current location via the terminal, and can avoid traffic regulations. It becomes.

In addition, as described in claim 7 , the server further includes usage information acquisition means for acquiring usage information, which is information regarding the usage of a parking lot provided in an area that can be represented as a map image, from the outside. The server-side generating means may generate map data indicating a map image indicating information on the use of the parking lot provided in the area including the current location of the terminal, further considering the usage information.

In addition, the information regarding the use of the parking lot may be, for example, information indicating the presence / absence of a vacant parking space, a parking fee, business hours, and the like.
According to such a configuration, the driver can grasp whether or not a parking lot around the host vehicle can be used via the terminal, and convenience can be improved.

Moreover, you may comprise the server which comprises the map display system of this-application Claim 1, and may distribute | circulate to the market.
That is, as described in claim 8 , the present location of a plurality of terminals used in a state of being mounted on a vehicle or being carried by a user, and a state of use of the terminals are represented. A server that generates map image data for displaying a map image, the server side communication means for communicating with the terminal via a wireless communication network, and the terminal from the plurality of terminals via the server side communication means You may comprise a server provided with the server side acquisition means which acquires the terminal information which shows the present location and the state of use. The server further includes traffic control information acquisition means for acquiring traffic control information capable of specifying at least one of a traffic light state and a level crossing state provided in an area that can be represented as a map image. And a map image of an area including the current location of one of the terminals based on the map data, the terminal information, and the traffic control information, and at least one of a traffic light state and a level crossing state provided in the area A server-side generation unit that generates map image data for displaying one of them as map image data corresponding to the terminal, and the map image data generated by the server-side generation unit via the server-side communication unit And server-side transmission means for transmitting to the terminal corresponding to the map image data.

Even in such a case, the same effect can be obtained by using in combination with the terminal described above.
Moreover, you may comprise the terminal which comprises the map display system of this-application Claim 1, and may distribute | circulate to the market.

That is, as described in claim 9 , the terminal is used in a state where it is mounted on a vehicle or carried by a user, and a current location of a plurality of terminals and a state of use of the terminals A server that generates map image data for displaying a map image representing the image, a terminal-side communication unit that communicates via a wireless communication network, a current location detection unit that detects the current location of the device itself, and a current location detection unit You may comprise a terminal provided with the terminal side transmission means which transmits the terminal information which shows the present location and use state of the detected own apparatus to a server via a terminal side communication means. In addition, the terminal further includes, via the terminal-side communication means, a terminal-side acquiring means for acquiring map image data for displaying a map image of a region including the current location of the device, from the server, and a terminal-side acquiring means Display means for displaying a map image indicating at least one of a traffic light state and a level crossing state provided in an area including the current location of the device based on the map image data acquired by Also good.

  Even in such a case, the same effect can be obtained by using in combination with the server described above.

It is a block diagram which shows the structure of a map display system and a server. It is a block diagram which shows the structure of a portable terminal and a vehicle-mounted terminal. It is a table | surface which shows the information which a server receives from a terminal etc. It is explanatory drawing which shows a mode that the map image is displayed via the web browser at the terminal. It is a flowchart of a portable terminal side process. It is a flowchart of a vehicle-mounted terminal side process. It is a flowchart of a server side process.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment of the present invention is not limited to the following embodiment, and can take various forms as long as they belong to the technical scope of the present invention.

[Description of configuration]
The map display system according to the present embodiment is mounted on a vehicle equipped with a mobile terminal such as a mobile phone or a smartphone by a so-called cloud computing or a motor such as an automobile or a motorcycle. This is to provide a service for displaying a map image around the current location by a web browser on a terminal.

  As illustrated in FIG. 1A, the map display system 1 according to the present embodiment is connected to one or a plurality of portable terminals 20, an in-vehicle terminal 40, and these terminals via the Internet 50. The server 10 is configured. In each terminal, based on the map image data generated by the server 10, a map image around the own device showing the current location of the own device or another terminal is displayed.

The server 10 is further connected via the Internet 50 to a traffic management system 60 that controls traffic lights and the like, and a parking lot management system 70 that manages pay parking lots.
The portable terminal 20 is provided in a light vehicle such as a bicycle or a wheelchair, and is configured to perform wireless communication with the RFID tag 30 in which ID information indicating the type of the light vehicle is stored. By receiving the ID information, the fact that the user carrying the device is on a light vehicle and the type of the light vehicle on which the user is riding are detected and transmitted to the server 10. And the server 10 which detected that the user who carries the portable terminal 20 has got on the light vehicle etc. reflects this on a map image.

  As shown in FIG. 1B, the server 10 is composed of a communication unit 11 for accessing the Internet 50, a device such as an HDD that does not require a memory holding operation, and generates map image data. The storage unit 12 stores various types of information such as map data used for the storage. Further, it is configured around a well-known microcomputer comprising a CPU, ROM, RAM, I / O and a bus line connecting them, and as a control unit 13 that operates according to a program loaded in the RAM, a liquid crystal display, etc. The display unit 14 is configured to display various types of information, and is configured as a keyboard, a mouse, or the like, and includes an operation unit 15 that receives various operations.

  Further, as shown in FIG. 2A, the portable terminal 20 is connected to a wireless communication network used by, for example, a cellular phone or the like by an antenna 21a and connected to the Internet 50 through the wireless communication network. A GPS antenna (not shown) receives signals from a communication unit 21 for access, a semiconductor acceleration sensor 22, an azimuth sensor 23 for detecting an absolute azimuth from geomagnetism, and an artificial satellite for GPS (Global Positioning System). And a GPS receiver 24 that detects the position, orientation, speed, etc. of the device itself.

  The portable terminal 20 is configured around a well-known microcomputer comprising a CPU, ROM, RAM, I / O and a bus line connecting them, and the portable terminal 20 is connected to the RAM according to a program loaded in the RAM. A control unit 25 that performs overall control and a storage unit 26 that is configured by a device (for example, an HDD or a flash memory) that does not require a memory holding operation and that can store various types of information.

  The portable terminal 20 is configured as a liquid crystal display or the like, and is configured as a display unit 27 that displays various information, a key switch, a touch switch, or the like, and is provided in an operation unit 28 that receives various operations or a light vehicle. An RFID communication unit 29 that receives ID information from the RFID tag 30 is provided.

  Further, as shown in FIG. 2B, the in-vehicle terminal 40 is connected to a wireless communication network used by, for example, a mobile phone or the like by an antenna 41a, and is connected to the Internet 50 through the wireless communication network. The communication unit 41 for accessing, a position detector 42 for detecting the current location of the host vehicle, a CPU, a ROM, a RAM, an I / O, and a well-known microcomputer including a bus line for connecting them are mainly configured. And a control unit 43 that controls the in-vehicle terminal 40 according to a program loaded in the RAM.

  The position detector 42 receives a signal from a GPS artificial satellite via a GPS antenna (not shown) and detects a position, direction, speed, etc. of the vehicle, and a rotation applied to the vehicle. A gyroscope 42b for detecting the magnitude of motion and a distance sensor 42c for detecting the distance traveled from the longitudinal acceleration of the vehicle or the like are provided. Since these have errors of different properties, they are configured to be used while complementing each other.

  The in-vehicle terminal 40 includes a direction sensor 44 that detects an absolute direction from geomagnetism and a device that does not require a memory holding operation (for example, an HDD or a flash memory), and can store various types of information. It is configured as a unit 45, a liquid crystal display, etc., and is configured as a display unit 46 that displays various information, a key switch, a touch switch, etc. An in-vehicle LAN communication unit 48 is provided for communicating with another ECU (not shown) mounted on the vehicle.

[Description of operation]
(1) Outline First, an outline of the operation of the map display system 1 will be described.

The portable terminal 20 and the in-vehicle terminal 40 constituting the map display system 1 transmit the current location of the own device to the server 10.
On the other hand, the server 10 receives and accumulates the current location of each terminal, and the map image corresponding to each terminal is a map image of a region including the current location of the terminal, and the current location of other terminals existing in the region. Alternatively, map image data for displaying a map image representing the terminal type of the terminal is generated. The terminal type is a type indicating whether the terminal is the portable terminal 20 or the in-vehicle terminal 40. In other words, the map image represents the current location of another vehicle or a user who is walking. It will be a thing. And the server 10 transmits the produced | generated map image data to a corresponding terminal, and the terminal which received this map image data displays a map image based on this.

  In addition to the current location, the server 10 receives the following information from the portable terminal 20, the in-vehicle terminal 40, the traffic management system 60, and the parking lot management system 70, and reflects these information on the map image. May be.

  That is, as shown in the table of FIG. 3, in addition to the current location, the server 10 determines whether, for example, the terminal type and whether the user carrying the device is on a light vehicle from the portable terminal 20. The user's characteristics (age, gender, body shape, presence or absence of injury, disease or disorder) and the movement state (movement direction, movement speed, acceleration, etc.) of the portable terminal 20 may be received. Note that these pieces of information are collectively referred to as terminal information. This terminal information is periodically transmitted from the portable terminal 20 to the server 10 while the portable terminal 20 is in operation (when the map image display function is in operation).

  In addition to the current location, the server 10 determines, for example, the terminal type, the type and model of the host vehicle, the movement state (traveling direction, speed, acceleration, etc.) of the host vehicle, Receives expected course and destination (also described as planned to move). Note that these pieces of information are collectively referred to as terminal information. This terminal information is periodically transmitted from the in-vehicle terminal 40 to the server 10 during driving of the host vehicle (during the operation of the map image display function of the in-vehicle terminal 40).

  In addition, the type of the own vehicle may be a type based on the size of the vehicle, the number of wheels, etc., such as a motorcycle, a light vehicle, a normal vehicle, etc., or a use such as a bus, a taxi, a private car, etc. It may be a type based on.

  The predicted course of the host vehicle is a direction in which the host vehicle is going to advance in the future. For example, the predicted course of the host vehicle may be a predicted traveling direction of the host vehicle based on the operating state of the turn signal. If the route guidance based on the map image is performed at the terminal 40, the traveling direction of the host vehicle predicted from the guidance route in the route guidance may be used. The destination may be a destination in route guidance at the in-vehicle terminal 40.

  Also, the portable terminal 20 may be configured to perform route guidance based on the map image. In such a case, the server 10 provides guidance in route guidance from the portable terminal 20 as terminal information. The direction predicted from the route that the user is going to travel in the future may be received as the predicted route, or the destination in the route guidance may be received.

Further, the server 10 may receive the following information from the traffic management system 60 and reflect it in the map image.
That is, as shown in the table of FIG. 3, the server 10 receives the control information of the traffic lights and the state of the railroad crossing (whether or not the crossing of the railroad crossing depending on whether or not the train is going) from the traffic management system 60 good. It also receives information on traffic rules established on each road, warnings when driving, guidance to specific areas and places, and traffic regulations resulting from accidents, events, construction, disasters, etc. on each road. May be. Hereinafter, these are collectively referred to as traffic management information.

  The traffic signal control information may be, for example, information indicating the timing at which each traffic signal provided at an intersection is switched, and the traffic management system 60 notifies the server 10 when the timing is changed. Signal control information may be transmitted. And the server 10 may produce | generate the map image data for displaying the map image which shows the state of the traffic light in an intersection, and the waiting time until this state changes based on control information.

In addition to this, the server 10 may periodically receive the traffic signal status of each intersection from the traffic management system 60 and reflect the traffic signal status in the map image based on this.
Further, the traffic rule may be, for example, a speed limit, whether there is a temporary stop, parking prohibition, or the like. The traffic management system 60 is set when a traffic rule is newly set on a road or on a road. A new traffic rule may be transmitted to the server 10 when the traffic rule is changed.

  Further, the warning may be information such as “slip caution” or “steep curve caution”, and the guidance may be “Xkm to xx”, “△△ turn right after this”, or the like. Information may be used. The traffic management system 60 transmits information indicating a new warning or the like to the server 10 when a warning or guidance is newly set on the road or when a warning or the like set on the road is changed. You may do it.

  Information on traffic regulations resulting from accidents, special events, construction, disasters, etc. includes, for example, the contents of accidents, specific contents of traffic regulations (blocks on specific road sections, speed, traffic weight, travel lanes, etc.) Etc.), and information regarding the scheduled period during which the traffic regulation is performed, etc., and the traffic management system 60 sends the information to the server 10 when the information is registered in the system. May be sent.

  As shown in the table of FIG. 3, the server 10 also receives the number of parking spaces, the charge, the business hours, etc. (also described as usage information) in the parking lot from the traffic management system 60, and converts them into a map image. It may be reflected. Further, the traffic management system 60 may update the usage information and transmit it to the server 10 when the vehicle enters the parking lot or when the parked vehicle leaves the parking lot.

(2) Specific Example of Map Image Next, a specific example of the map image displayed on the terminal based on the map image data generated by the server 10 will be described.

  FIG. 4 is an explanatory diagram showing a state in which the map image 100 is displayed by the web browser on the display unit of the terminal. As shown in the explanatory diagram, on the map image 100, along with roads and buildings, a current location mark 110 indicating the current location of the device itself is displayed, and a vehicle mark 121 indicating a vehicle on which the in-vehicle terminal 40 is mounted. To 123 or a user mark 130 indicating a user carrying the portable terminal 20 is displayed. In addition, a traffic light mark 140 indicating the state of the traffic light at the intersection and the time until the state of the traffic light changes is displayed.

  In addition, in FIG. 4, the map image 100 displayed on the vehicle-mounted terminal 40 is described as an example. Therefore, the current location mark 110 has a color and shape indicating that the terminal that displays the map image 100 is mounted on the vehicle. In other words, the current location mark 110 is a mark indicating the current location of the host vehicle. It has become. On the other hand, in the map image displayed on the portable terminal 20, a current location mark of a color and shape corresponding to a pedestrian (or a light vehicle) is displayed.

  In the map image 100, a triangular mark is drawn at the center of the current location mark 110 and the vehicle marks 121 to 123, and the expected course of the vehicle is represented by the direction of the mark. The direction of the mark is switched based on the expected course indicated by the terminal information acquired from the in-vehicle terminal 40 of each vehicle.

  In addition, the vehicle mark includes a traveling vehicle mark 121 indicating a traveling vehicle, a paused vehicle mark 122 indicating a temporarily stopped vehicle, and a parked vehicle mark indicating a parked vehicle (a vehicle in which driving is stopped). Three types of 123 are provided. Switching between the traveling vehicle mark 121 and the paused vehicle mark 122 is performed based on the movement state (speed) in the terminal information acquired from the in-vehicle terminal 40. Further, the switching to the parked vehicle mark 123 is performed based on the fact that the terminal information is no longer received from the in-vehicle terminal 40, and when the reception of the terminal information is resumed, the traveling vehicle mark 121 or the suspended vehicle is again displayed. The mark 122 is switched to.

Further, the following information may be displayed on the map image 100.
That is, based on the terminal information received from each portable terminal 20, it is determined whether the user carrying the portable terminal 20 is riding on a light vehicle or walking, and the color and shape according to the determination result are determined. A user mark 130 may be used.

  Moreover, the portable terminal 20 transmits the type of the light vehicle on which the user is riding as terminal information, and the server 10 has a color and shape reflecting the type of the light vehicle on which the user is riding based on the terminal information. A user mark 130 may be used.

  Further, based on the terminal information, the user's characteristics and movement state may be determined, and the user mark 130 having a color and shape reflecting the determination result may be used. In particular, when the user is an infant or an elderly person, or has an injury, illness, disability, or the like, the user mark 130 having a color and shape that calls attention may be used.

  Further, the predicted course and destination of the user are determined based on the terminal information, and the predicted path of the user may be displayed with an arrow or the like on the map image 100 based on the determination result, or the destination is indicated. A mark may be displayed.

  Also, based on the terminal information received from the in-vehicle terminal 40, the speed or acceleration, type, and type of the vehicle on which the in-vehicle terminal 40 is mounted are determined, and the current location mark 110 or the vehicle mark reflecting the determination result is used. May be. The in-vehicle terminal 40 further notifies the driving state such as the shift lever state and the side brake state as the movement state included in the terminal information, and the server 10 reflects this on the map image 100. You may display the present location mark 110 or a vehicle mark.

Further, the destination of the vehicle may be determined based on the terminal information, and a mark indicating the destination of the vehicle may be displayed on the map image 100 based on the determination result.
In addition, based on the traffic management information received from the traffic management system 60, traffic rules provided on each road, warnings when driving, guidance to specific areas and places, etc. are displayed on the map image 100. May be. In addition, if it is found that traffic regulation due to an accident, event, construction, disaster, etc. is performed on the road on the map image 100 based on the traffic management information, the accident or the traffic regulation You may display the content, the period when this traffic regulation, etc. are implemented.

In addition, when there is a level crossing in the area displayed by the map image 100, whether to cross the level crossing may be displayed on the map image 100 based on the traffic management information.
Further, when there is a parking lot in the area displayed by the map image 100, the number of cars that can be parked in the parking lot is displayed on the map image 100 based on the usage information of the parking lot acquired from the parking lot management system 70. , Charges, business hours, etc. may be displayed.

Furthermore, the terminal displaying the map image 100 may perform the following processing.
That is, based on the map image data, if it is found that there is a vehicle, a bicycle, or the like that suddenly approaches the host vehicle (or the user carrying the portable terminal 20) from behind, A warning may be given to the user by voice or video. In addition, when the existence of a motorcycle, a bicycle, or a wheelchair that travels in the vicinity of the host vehicle is found, a warning or alert may be given to the driver by voice or video.

Further, the in-vehicle terminal 40 may identify a road where a traffic jam has occurred based on the map image data, and may present a detour for the traffic jam on the map image 100.
The in-vehicle terminal 40 may determine the remaining time until the signal changes based on the map image data when the own vehicle stops due to a signal waiting at the intersection. If the remaining time is equal to or longer than a predetermined threshold (for example, 30 seconds), the driver may be prompted to stop the engine by voice or video, or communicate with the engine ECU via the in-vehicle LAN. The engine may be automatically stopped.

  After that, when the remaining time becomes a predetermined threshold value (for example, 10 seconds) or less, the driver may be urged to start the engine by voice or video, or with the engine ECU via the in-vehicle LAN. Communication may be performed to automatically start the engine.

  In this way, the engine can be stopped after being stopped by waiting for a signal, and the engine can be started with a margin before the signal waiting is canceled. Can be improved.

(3) About portable terminal side process Next, the portable terminal side process which transmits terminal information to the server 10 from the portable terminal 20 is demonstrated using the flowchart as described in FIG. This process is a process that is periodically executed while the portable terminal 20 is in operation (when the map image display function is in operation).

  In S <b> 205, the control unit 25 identifies the user characteristics based on the user information stored in the storage unit 26. The user information is information indicating the name, address, etc. of the user of the portable terminal 20, user characteristics, etc., and is generated based on information input from the user via the operation unit 28.

  In addition, the control unit 25 attempts to receive ID information from the RFID tag 30 mounted on the light vehicle by the RFID communication unit 29, and determines whether the user has boarded the light vehicle based on whether or not the reception is successful. (If reception is successful, the user is assumed to be on a light vehicle). Then, the process proceeds to S210.

In S210, the control unit 25 detects the current location by the GPS receiver 24, and the process proceeds to S215.
In S215, the control unit 25 uses the acceleration sensor 22 and the orientation sensor 23 to measure the absolute movement direction and acceleration of the own apparatus, and based on the movement direction and acceleration detected in the past, By calculating the moving speed of the device, the moving state of the own device is determined. Then, the process proceeds to S220.

  In S <b> 220, the control unit 25 generates terminal information indicating the current location, terminal type, user characteristics, presence / absence of a light vehicle, movement state, and the like, and generates the generated terminal information via the communication unit 21. 10 and the process proceeds to S225.

  In S225, the control unit 25 specifies a range of a preset map display area (a region including the current location of the own device to be displayed as a map image) and transmits information indicating the map display area via the communication unit 21. Are transmitted to the server 10, and the process proceeds to S230.

In S230, the control part 25 receives the map image data for displaying the map image of the said map display area from the server 10 via the communication part 21, and transfers a process to S235.
In S235, the control unit 25 displays a map image via the web browser on the screen of the display unit 27 based on the map image data, and ends this process.

  In addition, when the route guidance is performed by the own device, the control unit 25 specifies the guidance route and the destination to which the user is guided by the route guidance, and sets the movement schedule (corresponding to the route determination unit). The terminal information may be transmitted to the server 10.

(4) On-vehicle terminal side processing Next, on-vehicle terminal side processing for transmitting terminal information from the in-vehicle terminal 40 to the server 10 will be described with reference to the flowchart shown in FIG. This process is a process periodically executed by the in-vehicle terminal 40 while the host vehicle is in operation (when the map image display function of the in-vehicle terminal 40 is in operation).

  In S305, the control unit 43 of the in-vehicle terminal 40 identifies the type and model of the host vehicle based on information acquired from other ECUs via the in-vehicle LAN communication unit 48, and the process proceeds to S310.

In S310, the control part 43 detects the present location of the own vehicle by the position detector 42, and shifts the processing to S315.
In S <b> 315, the control unit 25 acquires the steering operation state and the speed of the host vehicle via the in-vehicle LAN communication unit 48, and determines the steering operation state and speed and the own vehicle detected by the position detector 42. Based on the current location history, an absolute traveling direction of the host vehicle is detected. Moreover, while calculating the acceleration of the own vehicle based on the acquired speed history of the own vehicle, the traveling direction, speed, and acceleration of the own vehicle are set to the moving state, and the process proceeds to S320.

  In S320, when the route guidance is performed by the own device, the control unit 43 specifies a guidance route and a destination to which the user is guided by the route guidance. In addition, when route guidance is not performed, the operating state of the blinker is determined based on the information acquired via the in-vehicle LAN communication unit 48, and when either the left or right blinker is operating, it operates. The direction corresponding to the turn signal that has been turned is set as the predicted course of the host vehicle, and when no turn signal is operating, the straight direction is specified as the predicted course of the host vehicle. Then, the identified guide route or predicted route and destination are set as the movement schedule of the host vehicle, and the process proceeds to S325.

  In S325, the control unit 43 generates terminal information indicating the current location of the host vehicle, the terminal type, the type and model of the host vehicle, the moving state of the host vehicle, and the planned movement, and the generated terminal information is transmitted to the communication unit 41. To the server 10, and the process proceeds to S330.

  In S330, the control unit 43 specifies a preset map display area range, transmits information indicating the map display area to the server 10 via the communication unit 41, and shifts the processing to S335.

In S335, the control part 43 receives the map image data for displaying the map image of the said map display area from the server 10 via the communication part 41, and transfers a process to S340.
In S340, the control unit 43 displays a map image on the screen of the display unit 46 via the web browser based on the map image data, and ends the present process.

(5) Server-side processing Next, server-side processing for generating map image data and transmitting map image data to the portable terminal 20 and the in-vehicle terminal 40 will be described with reference to the flowchart shown in FIG. . This process is a process periodically executed by the server 10.

In S405, the control unit 13 of the server 10 acquires traffic management information from the traffic management system 60 via the communication unit 11, and the process proceeds to S410.
In S410, the control unit 13 acquires the parking lot usage information from the parking lot management system 70 via the communication unit 11, and the process proceeds to S415.

In S415, the control part 13 receives terminal information and a map display area from a terminal via the communication part 11, and transfers a process to S420.
In S420, the control unit 13 determines whether or not terminal information or the like has been received, and when an affirmative determination is obtained (S420: Yes), the process proceeds to S425 and a negative determination is obtained. (S420: No), this process is terminated.

In S425, the control unit 13 selects any terminal that has not transmitted the map image data from the terminals that are the transmission source of the received terminal information and the process proceeds to S430.
In S430, the control unit 13 specifies the terminal information received from the terminal located in the map display area received from the selected terminal among the terminal information received within the predetermined period, and the map display Traffic management information and usage information about roads, parking lots, etc. in the area are specified, and the process proceeds to S435.

  In S435, the control unit 13 generates map image data corresponding to the map display area received from the selected terminal based on the identified terminal information, traffic management information, usage information, map data, etc., and the process in S440 To migrate.

In S440, the control unit 13 transmits the generated map image data to the currently selected terminal via the communication unit 11, and the process proceeds to S445.
In S445, the control unit 13 determines whether or not the map image data has been transmitted to all the terminals that are the transmission source of the terminal information received in S415, and if an affirmative determination is obtained (S445). : Yes), this process is terminated, and if a negative determination is obtained (S420: No), the process proceeds to S425.

[effect]
According to the map display system 1 of the present embodiment, the current location of each terminal is accumulated in the server via the wireless communication network without using infrastructure provided on the road such as an optical beacon. Based on the map image data generated by the server 10, a map image representing the current location of a vehicle or a pedestrian existing in the vicinity of the host vehicle is displayed. For this reason, the driver can easily grasp the degree of congestion on the road regardless of the place where the vehicle is traveling.

  In the conventional VICS, the traffic information is provided from the information center to the navigation device, and the navigation device generates a map image based on the map data and displays the traffic information of each road on the map image. It was. On the other hand, in the map display system 1 of the present embodiment, map image data is generated based on the map data by the server 10 and transmitted to the terminal. Therefore, there is no need to provide map data in the terminal, and the terminal can be downsized. Is possible.

  Therefore, it goes without saying that it can be mounted on a vehicle, and the portable terminal 20 can be configured as, for example, a mobile phone or a smart phone so that it can be carried by the user. Thereby, the map image showing the position of the pedestrian in addition to the vehicle can be displayed on the in-vehicle terminal 40, so that the driver can easily grasp the presence of the vehicle or the pedestrian located in the blind spot. become.

As described above, according to the map display system 1 of the present embodiment, it is possible to perform driving support in consideration of the presence of pedestrians in the vicinity of the host vehicle regardless of the location where the vehicle is running.
Furthermore, since the map image data is configured as data in a format that can display the map image on the web browser, the map image can be easily displayed on more devices regardless of the manufacturer. Become. Thereby, it becomes possible to configure more devices as the portable terminals 20 in the map display system 1, and to allow many users to carry the portable terminals 20, and thus to display more pedestrians on the map image. And more appropriate driving assistance can be performed.

[Other Embodiments]
(1) Even if the server 10 in the map display system 1 of this embodiment specifies the congestion degree of each road based on the terminal information received from each vehicle-mounted terminal 40, and transmits the congestion condition to the traffic management system 60. good. The traffic management system 60 may control traffic lights provided on the roads based on the degree of congestion of the roads received from the server 10. By doing so, it is possible to control the signal state according to the traffic volume of the road and alleviate the traffic jam without providing an infrastructure for detecting the traffic volume of the vehicle on the road.

  In addition, the server 10 grasps the vehicle traveling near each intersection based on the terminal information received from each terminal and the user near each intersection, and based on this, via the in-vehicle terminal 40 and the portable terminal 20, You may organize traffic at each intersection. By doing so, it is possible to perform traffic control without considering a traffic light in consideration of the number of vehicles passing through the intersection, the expected course of the vehicle, the number of pedestrians passing through the intersection, and the like.

  (2) Moreover, you may comprise the portable terminal 20 in the map display system 1 so that mounting to a vehicle is possible. Specifically, the portable terminal 20 may detect mounting on a vehicle by receiving ID information from an operation from a user or an RFID tag 30 mounted on the vehicle. Then, in addition to the current location, movement information, and the like, information indicating that the vehicle is mounted on the vehicle may be transmitted to the server 10 as terminal information. Further, the server 10 may set the color and shape of the mark corresponding to the portable terminal 20 on the map image according to whether or not the portable terminal 20 is mounted on the vehicle. Even in such a case, the same effect can be obtained.

  (3) Further, in the map display system 1, the server 10 is configured so that the mark indicating the current location of the terminal corresponding to the map image is displayed in a color and shape different from the mark indicating the current location of the other terminal. Map image data is generated.

  However, the present invention is not limited to this. For example, the map image data configured so that the mark indicating the current location of the terminal corresponding to the map image is displayed in the same manner as the mark indicating the current location of the other terminal is stored in the server 10. May be generated. Then, at the terminal that has received the map image data, a part of the data is processed, and the mark indicating the current location of the own device has a different color and shape from the mark indicating the current location of the other terminal An image may be displayed. By doing so, the processing load on the server 10 can be reduced.

[Correspondence with Claims]
The correspondence between the terms used in the description of the above embodiment and the terms used in the description of the claims is shown.

The communication unit 11 of the server 10 corresponds to server side communication means.
Further, the communication unit 21 of the portable terminal 20 corresponds to a terminal-side communication unit, the GPS receiver 24 corresponds to a current location detection unit, and the display unit 27 corresponds to a display unit.

In addition, the communication unit 41 of the in-vehicle terminal 40 corresponds to a terminal-side communication unit, the position detector 42 corresponds to a current location detection unit, and the display unit 46 corresponds to a display unit.
Also, S405 of the server side transmission process is the traffic control information acquisition means, the traffic information acquisition means, S410 is the usage information acquisition means, S415 is the server side acquisition means, S435 is the server side generation means, and S440 is the server side transmission. Corresponds to means.

Further, S205 of the portable terminal side processing corresponds to the user determination means, S215 corresponds to the movement state determination means, S220 corresponds to the terminal side transmission means, and S230 corresponds to the terminal side acquisition means.
Further, S305 in the in-vehicle terminal side processing corresponds to the vehicle type determination means, S315 corresponds to the movement state determination means, S320 corresponds to the course determination means, S325 corresponds to the terminal side transmission means, and S335 corresponds to the terminal side acquisition means.

  Further, the terminal type corresponds to the use state, the vehicle type and type correspond to the vehicle type, and the control information of the traffic lights and the state of the railroad crossing correspond to the traffic control information. In addition, traffic rules established on each road, warnings when driving, guidance to specific areas and places, and information on traffic regulations due to accidents, events, construction, disasters, etc. on each road It corresponds to information.

  DESCRIPTION OF SYMBOLS 1 ... Map display system, 10 ... Server, 11 ... Communication part, 12 ... Memory | storage part, 13 ... Control part, 14 ... Display part, 15 ... Operation part, 20 ... Portable terminal, 21 ... Communication part, 21a ... Antenna, DESCRIPTION OF SYMBOLS 22 ... Acceleration sensor, 23 ... Direction sensor, 24 ... GPS receiver, 25 ... Control part, 26 ... Memory | storage part, 27 ... Display part, 28 ... Operation part, 29 ... RFID communication part, 30 ... RFID tag, 40 ... In-vehicle 41, communication unit, 41a, antenna, 42 ... position detector, 42a ... GPS receiver, 42b ... gyroscope, 42c ... distance sensor, 43 ... control unit, 44 ... direction sensor, 45 ... storage unit, 46 DESCRIPTION OF SYMBOLS ... Display part, 47 ... Operation part, 48 ... In-vehicle LAN communication part, 50 ... Internet, 60 ... Traffic management system, 70 ... Parking lot management system, 100 ... Map image, 110 ... Present location mark, 121 ... Line vehicle mark, 122 ... pause vehicle mark, 123 ... parked vehicle mark, 130 ... user mark, 140 ... traffic mark.

Claims (9)

Map image data for displaying a plurality of terminals used in a state of being mounted on a vehicle or being carried by a user, and a map image representing the current location of the terminal and the state of use of the terminal A map display system having a server for generating
The server
Server-side communication means for communicating with the terminal via a wireless communication network;
Server side acquisition means for acquiring terminal information indicating the current location of the terminal and the state of use from the plurality of terminals via the server side communication means;
Traffic control information acquisition means for acquiring traffic control information that can specify at least one of a traffic light state and a level crossing state provided in an area that can be represented as the map image;
Based on the map data, the terminal information, and the traffic control information, the map image of an area including the current location of any one of the terminals, the state of the traffic light provided in the area and the state of the railroad crossing Server-side generating means for generating the map image data for displaying at least one of the map image data corresponding to the terminal;
Server-side transmission means for transmitting the map image data generated by the server-side generation means to the terminal corresponding to the map image data via the server-side communication means;
With
The terminal
Terminal-side communication means for communicating with the server via a wireless communication network;
Current location detection means for detecting the current location of the device;
Terminal side transmission means for transmitting to the server via the terminal side communication means, the terminal information indicating the current location of the own device detected by the current location detection means and the state of use;
Terminal side acquisition means for acquiring the map image data corresponding to the own device from the server via the terminal side communication means;
Based on the map image data acquired by the terminal-side acquisition means, the map image showing at least one of the state of the traffic light and the state of the railroad crossing provided in an area including the current location of the own device is displayed. Display means to
A map display system comprising: The map display system according to claim 1,
The terminal used in the state of being mounted on a vehicle further includes vehicle type determination means for determining the type of vehicle on which the device is mounted,
The terminal-side transmission means transmits the terminal information further indicating the type of the vehicle determined by the vehicle type determination means to the server,
The server-side generating means generates the map image data for displaying the map image further indicating the type of the vehicle on which the terminal according to the current location is mounted based on the terminal information;
A map display system characterized by In the map display system according to claim 1 or 2,
The terminal that is used while being carried by a user further includes a user discriminating unit that discriminates the characteristics of the user carrying the device.
The terminal-side transmitting means transmits the terminal information further indicating the characteristics of the user determined by the user determining means to the server;
The server-side generating means generates the map image data for displaying the map image further indicating the characteristics of the user for the user carrying the terminal according to the current location, based on the terminal information;
A map display system characterized by The map display system according to any one of claims 1 to 3,
The terminal further includes a moving state determination means for determining a moving state of a user carrying the own device or a vehicle on which the own device is mounted,
The terminal-side transmission means transmits the terminal information further indicating the movement state determined by the movement state determination means to the server;
The server-side generating means is configured to display the map image further indicating the moving state of the user carrying the terminal according to the current location or the vehicle on which the terminal is mounted based on the terminal information. Generating map image data,
A map display system characterized by In the map display system according to any one of claims 1 to 4,
The terminal further includes a route discriminating means for discriminating an expected course of a user carrying the device or the vehicle on which the device is mounted,
The terminal-side transmitting means transmits the terminal information further indicating the expected course determined by the course determining means to the server;
The server-side generating means displays the map image further indicating the predicted course of the user carrying the terminal according to the current location or the vehicle equipped with the terminal based on the terminal information. Generating the map image data of
A map display system characterized by The map display system according to any one of claims 1 to 5 ,
The server includes a traffic rule when a vehicle travels on a road provided in an area that can be represented as the map image, traffic regulation on the road, guidance for a driver of the vehicle traveling on the road, and a warning for the driver. Traffic information acquisition means for acquiring traffic information indicating at least one of the above from the outside,
The server-side generation means further includes at least one of the traffic rule, the traffic regulation, the guidance, and the warning for a road in an area including the current location of the terminal, further considering the traffic information. Generating the map data for displaying a map image;
A map display system characterized by In the map display system according to any one of claims 1 to 6 ,
The server further includes usage information acquisition means for acquiring usage information that is information related to the use of a parking lot provided in an area that can be represented as the map image,
The server-side generation means further generates the map data indicating the map image indicating information related to the use of a parking lot provided in an area including the current location of the terminal, further adding the usage information.
A map display system characterized by Generates map image data for displaying a map image representing the current location of a plurality of terminals used in a state of being mounted on a vehicle or carried by a user and the state of use of the terminals A server that
Server-side communication means for communicating with the terminal via a wireless communication network;
Server side acquisition means for acquiring terminal information indicating the current location of the terminal and the state of use from the plurality of terminals via the server side communication means;
Traffic control information acquisition means for acquiring traffic control information that can specify at least one of a traffic light state and a level crossing state provided in an area that can be represented as the map image;
Based on the map data, the terminal information, and the traffic control information, the map image of an area including the current location of any one of the terminals, the state of the traffic light provided in the area and the state of the railroad crossing Server-side generating means for generating the map image data for displaying at least one of the map image data corresponding to the terminal;
Server-side transmission means for transmitting the map image data generated by the server-side generation means to the terminal corresponding to the map image data via the server-side communication means;
A server comprising: A terminal used in a state mounted on a vehicle or carried by a user,
A server that generates map image data for displaying a map image representing a current location of the plurality of terminals and the use state of the terminals; a terminal-side communication unit that performs communication via a wireless communication network;
Current location detection means for detecting the current location of the device;
Terminal side transmission means for transmitting to the server via the terminal side communication means, the terminal information indicating the current location of the own device detected by the current location detection means and the state of use;
Terminal side acquisition means for acquiring the map image data for displaying the map image of the area including the current location of the own device from the server via the terminal side communication means;
Based on the map image data acquired by the terminal-side acquisition means, the map image showing at least one of the state of the traffic light and the state of the railroad crossing provided in an area including the current location of the own device is displayed. Display means to
A terminal comprising: