JP2014074670A - Map display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a map display device that acquires contribution information from an external server to display on a map, and can limit display of information newly displayed around the current position so as to prevent risky driving and walking of a user.SOLUTION: A map generation part SP31 displays, of pieces of new contribution information acquired by a contribution information acquisition part SP24 from an external server, new contribution information having a distance between position information of the new contribution information and the current position of a current position calculation part SP22 being equal or more than a reference value, generates a contribution information-added map image so as to hide the new contribution information having a distance less than the reference value, and displays the generated map image on the display part.

Description

  The present invention relates to a map display device that acquires information from an external server that accumulates information including position information and date and time information, and displays the information at a specific position on a map that matches the position information included in the acquired information. .

In recent years, social networking services (hereinafter referred to as SNS) such as Twitter (registered trademark) and Facebook (registered trademark) have become widespread, and users can use smartphones, mobile phones, personal computers (hereinafter referred to as PCs) and the like. It is possible to browse and post various information easily.
Since these SNS can associate the posted position with the posted content when the user posts information, the SNS server has an account indicating the poster, a posting date and time indicating the date and time the poster has posted, and posting. Position information indicating the position posted by the person and post information including information such as post contents are accumulated.

  There is a high user need to use such an SNS even in a vehicle, and there is a desire to continue using an SNS used in a mobile terminal such as a mobile phone when the user gets on the vehicle. Accordingly, an in-vehicle display device that displays post information acquired from an SNS server on a map in a display format corresponding to an elapsed time until the post information is acquired and a category to which the post information belongs is disclosed (patent) Reference 1).

  In addition to SNS posting information, a coupon information site or the like allows a user to easily obtain coupons and advertisements for various facilities using a smartphone, a mobile phone, or a PC. Information on such coupons and advertisements can also be used in the vehicle, similar to the information posted to the SNS. For example, advertisement information corresponding to a predetermined condition is acquired from advertisement data stored in a server. And the navigation apparatus for vehicles which superimposes and displays the acquired advertisement information on the map of a display is disclosed (patent document 2).

JP 2011-247832 A JP 2002-162237 A

By the way, the in-vehicle display device described in Patent Document 1 can filter and display only the posted information classified into a predetermined category among the acquired posted information. Since filtering whether or not to display the posting information based on the date and time cannot be performed, when the in-vehicle display device acquires the posting information that a certain SNS user newly posted to the SNS server, all the acquired posting information is displayed. It is displayed on the map.
FIG. 11A shows an example when posted information is displayed on a map. The road shape, POI (Point of Interest) indicating the facility position, current position (VP), and posted information (T1). ) Is drawn. In this situation, when the in-vehicle display device acquires new post information from the SNS server and displays the post information, the new post information (T2, T3, T4) is displayed as shown in FIG. Is added. At this time, for example, if the posted information “Finding a strange car!” Shown in T2 is newly displayed, the driver wants to check what kind of strange car there is and sees the direction of the opposite lane. Driving aside. Further, when the post information “discovered idol ♪” shown at T3 is newly displayed, in order to look at the idol at a glance, an attempt is made to go to the place where the post information is posted, and in order to make a left turn, a sudden handle operation is performed.

  In this way, if the posted information is suddenly displayed near the current position, the driver is worried about the posted information and looks at the map to confirm the content, or the posted information is posted. Obstructing safe driving by looking at the direction of driving or looking aside. It is also conceivable that a sudden steering operation or braking operation is sometimes performed. Such an event can be considered not only when driving a car or the like, but also when a person is using a mobile terminal while walking. Even in this case, if the posted information is displayed near the current location, the pedestrian looks at the screen of the mobile terminal and does not notice even if there is a danger in the surroundings, and may cause an injury or accident. .

  Similarly, in the vehicle navigation apparatus described in Patent Document 2, if advertisement information is suddenly displayed in the vicinity of the current position, the contents may be anxious and the user may be watching the map or the facility indicated by the advertisement information. If you are looking for a safe driving or walking.

  In view of the above, an object of the present invention is to provide a map display device that can prevent dangerous driving and walking of a user by restricting display of information that is newly displayed near the current position. It is.

  In order to solve the above-described problem, the map display device of the present invention acquires information from an external server that accumulates information including position information and date and time information, and specifies on the map that matches the position information included in the acquired information. A map display device that displays the information at a position, a current position calculation unit that calculates a current position, a communication unit that communicates with the external server, and a date and time when the information is acquired from the external server via the communication unit An acquisition date and time storage unit that stores information, an acquisition unit that acquires information after the acquisition date and time from an external server based on the acquisition date and time stored in the acquisition date and time storage unit and the date and time information of the information, and the acquisition unit If the distance between the position of the position information included in the information acquired by the above and the current position calculated by the current position calculation unit is less than a reference value, the information is not displayed and the position information of the information If the distance between the position and the current position is equal to or greater than a reference value, a display control unit that performs display control so as to display the information, a display unit that displays the information controlled by the display control unit, It has.

  Furthermore, the display control unit of the map display device of the present invention can change the reference value according to the map scale being displayed, and the map scale displaying the reference value is wider. The reference value is changed so as to increase.

Preferably, the display control unit further includes a determination unit that determines whether or not the vehicle is moving based on position information of the current position calculation unit, and when the determination unit determines that the vehicle is moving, When the display control is performed and the determination unit determines that the vehicle is stopped, the display control unit displays all the information acquired by the acquisition unit.
And when the said display control part displays the said information on a map, it displays using an icon, and the said display part is an external display apparatus.

  Preferably, the information is a text or image posting, and the position included in the position information is a position where the information is posted. The information may be coupon information or an advertisement of a facility, and the position information may be a location of the facility.

  According to the present invention, among the information newly acquired from the external server, only posted information that is more than a predetermined distance away from the current position is displayed on the map, thereby preventing the danger of the user.

It is a figure which shows the whole system structure containing the map display apparatus which concerns on an Example. It is a detailed block diagram of the SNS server which concerns on an Example. It is a detailed block diagram of the map server which concerns on an Example. It is a detailed block diagram of the map display apparatus which concerns on an Example. It is a figure which shows the example of the posting information memorize | stored in memory, and posting information acquisition date. It is a flowchart of the contribution information acquisition which concerns on an Example, and a contribution information incidental map screen display process. It is a figure which shows the example of the posting information memorize | stored in the memory after new posting information acquisition, and posting information acquisition date. It is a figure which shows the transition of the contribution information incidental map screen accompanying current position movement and new contribution information acquisition. It is a figure which shows the example of a display of a contribution information accompanying map image at the time of changing the reference value of non-display according to the map scale in a modification. It is a figure which shows the whole system structure containing the map display apparatus of a modification. It is a figure which shows the example of a display of the contribution information incidental map image in a prior art.

Hereinafter, a map display device according to an embodiment to which the present invention is applied will be described with reference to the drawings.
FIG. 1 is a diagram showing an overall configuration of a system including a map display device according to an embodiment of the present invention. The system shown in FIG. 1 includes a PC 1, a mobile phone 2, an SNS server 3 that provides various SNS services, a map server 4 that stores map data, and a map display device 5. Each is connected via a network 6.
The PC 1 and the mobile phone 2 are tools for the user to post information, and transmit the posted content input by the user to the SNS server 3 via the network 6. When transmitting the posted content to the SNS server 3, the PC 1 or the mobile phone 2 assigns the posted date and time information and account information for identifying the poster to the posted content, and transmits the posted content as posted information. The position information shown can also be given.

The SNS server 3 stores post information received from the PC 1 or the mobile phone 2, receives a request for transmission of predetermined information from the map display device 5, reads out post information requested for transmission, and transmits it via the network 6. Transmit to the map display device 5.
The map server 4 includes a map database (hereinafter referred to as a map DB), receives a map data transmission request from the map display device 5, reads predetermined map data, and transmits it to the map display device 5 via the network 6.
The map display device 5 acquires post information from the SNS server 3 according to an instruction from the user, and acquires map data around the current position from the map server 4. And based on the acquired posting information and map data, a map image in which the posting information is superimposed on the map is displayed.

Next, a detailed configuration of the SNS server 3 will be described with reference to FIG.
As shown in FIG. 2, the communication unit 31 is connected to the network 6 and transmits and receives various data to and from the PC 1, the mobile phone 2, and the map display device 5.
When post information is input from the PC 1 or the mobile phone 2 via the communication unit 31, the SNS server control unit 32 stores the post information in a post information database (hereinafter, post information DB) 33. Further, when a posting information transmission request is input from the map display device 5 via the communication unit 31, the SNS server control unit 32 reads the posting information from the posting information DB 33 based on the posting information transmission request, and the communication unit It transmits to the map display apparatus 5 via 31.

Next, a detailed configuration of the map server 4 will be described with reference to FIG.
As shown in FIG. 3, the communication unit 41 is connected to the network 6 and transmits and receives various data to and from the map display device 5.
When a map data transmission request is input from the map display device 5 via the communication unit 41, the map server control unit 42 receives map data around the position information based on the position information included in the map data transmission request from the map DB 43. Is transmitted to the map display device 5 via the communication unit 41.
Note that the map DB 43 stores map data necessary for map display in units of rectangular figure leaves divided into appropriate sizes in longitude and latitude, and the map server control unit 42 stores the position information. The map data around the position information can be read by designating the leaf number for the periphery.

Next, a detailed configuration of the map display device 5 will be described with reference to FIG.
As shown in FIG. 4, the map display device 5 is mainly composed of a smartphone SP1 that performs a communication function, a posted information control function, and a map control function, and a display audio DA1 that mainly performs a display function and a music playback function.

  When the cooperation control unit SP11 detects that the smartphone SP1 and the display audio DA1, which will be described later, are connected to each other via a USB (Universal Serial Bus) or the like via the input / output interface SP12, the cooperation controller SP11 establishes a connection between the smartphone SP1 and the display audio DA1. Controls various data communications. Specifically, data for causing the display image DA22 of the display audio DA1 to display the map image generated by the smartphone SP1 and the post information-added map image is transmitted, or an instruction operated by the display audio DA1 is transmitted to the smartphone SP1. To do.

  The operation unit SP13 is for accepting a user's instruction operation, and includes various operation buttons, a touch panel attached to a display unit SP32 described later, and the input instruction operation is output to an input processing unit SP14 described later. To do.

The input processing unit SP14 outputs an instruction command for performing operations corresponding to various instruction operations input from the operation unit SP13 to each unit of the smartphone SP1. Further, the input processing unit SP14 outputs an instruction command for performing operations corresponding to various instruction operations input from the display audio DA1 via the input / output interface SP12 to each unit in the smartphone SP1.
Examples of the instruction command include a post information acquisition instruction for acquiring post information from the SNS server 3, a map display instruction for displaying a map image, a post information accompanying map display instruction for displaying the acquired post information on a map, and the like.

  The communication unit SP21 is connected to the network 6, and transmits / receives various data to / from the SNS server 3 and the map server 4.

  The current position calculation unit SP22 includes, for example, a GPS receiver, an orientation sensor, a distance sensor, and the like, detects the current position (longitude, latitude) at a predetermined timing, and determines the current position based on the detection result. The calculated current position is output to the posted information acquisition unit SP24, the map acquisition unit SP25, and the map generation unit SP31.

  The memory SP23 temporarily stores post information acquired from the SNS server 3 by a post information acquisition unit SP24, which will be described later, and temporarily stores acquisition date information acquired from the SNS server 3 (FIG. 5). . The posted information includes posted date / time information, position information, posted content, and poster identification information (account information). For example, the posted information TW1 shown in FIG. / 02 07:30 ”,“ longitude: Lon. A ”,“ latitude: Lat. A ”as position information,“ idol discovery ♪ ”as post content, and“ Debby ”as account information are stored as one post information. . Also, the new post flag attached to the post information is stored with “1” added to post information that is a new post, and “0” added to post information acquired before the previous time. .

  When a posting information acquisition instruction is input from the input processing unit SP14, the posting information acquisition unit SP24 creates a posting information transmission request including date information that acquired the previous posting information stored in the memory SP23, and the communication unit SP21. To the SNS server 3 via. However, in the case of the first posting information acquisition instruction, date information is not included in the posting information transmission request. Then, the posting information acquisition unit SP24 acquires the posting information transmitted by the SNS server 3, attaches a new posting flag to the posting information, stores the posting information in the memory SP23, and stores the date / time information of acquiring the posting information in the memory SP23. Remember.

Also, the posting information acquisition unit SP24 detects whether or not a predetermined time has elapsed since acquiring the posting information. When the predetermined time or more has elapsed, the posting information acquisition unit SP24 is posted to the SNS server 3 after the acquisition date and time stored in the memory SP23. The posting information transmission request for acquiring the posted information may be automatically transmitted to the SNS server 3 to acquire the posting information. At this time, the posting information acquisition unit SP24 sets the new posting flag of the posting information stored in the memory SP23 to “0”, and adds a new posting flag “1” to the acquired posting information, and the memory SP23. To remember.
Furthermore, when the posted information supplementary map display instruction for displaying the posted information supplementary map in which the posted information is superimposed on the map is input from the input processing unit SP14, the posted information acquisition unit SP24 includes the posted information stored in the memory SP23. Then, post information satisfying a predetermined condition is read from the current position input from the current position calculation unit SP22, and is output to the map generation unit SP31 described later. The posted information satisfying the predetermined condition is posted information included in the range of the map data acquired by the map acquisition unit SP25.

The map acquisition unit SP25 generates a map data transmission request including the current position information output from the current position calculation unit SP22 according to the map display instruction input from the input processing unit SP14, and the map server via the communication unit SP21. 4 to send. Then, map acquisition part SP25 acquires the map data transmitted from the map server 4, and outputs it to map generation part SP31 mentioned later.
Further, whenever the current position moves, the map acquisition unit SP25 automatically acquires map data around the current position from the map server 4 as necessary, and outputs the map data to the map generation unit SP31.

Upon receiving a map display instruction from the input processing unit SP14, the map generation unit SP31 generates a map image based on the map data output from the map acquisition unit SP25.
Furthermore, when the map generation unit SP31 receives a post information accompanying map display instruction from the input processing unit SP14, the post information is displayed at the position of the map image corresponding to the position information included in the post information output from the post information acquisition unit SP24. A post information-added map image in which is superimposed is generated.
At this time, the map generation unit SP31 determines whether or not the posting information is a new posting based on the new posting flag of the posting information output from the posting information acquisition unit SP24. When the posting information is a new posting The post information is superimposed on the map image only when the position information of the post information and the current position of the current position calculation unit SP22 are apart from each other by a reference value (for example, 100 m). On the other hand, when the posting information is not a new posting, it is superimposed on the map image regardless of the current position of the current position calculation unit SP22. Further, the map generation unit SP31 determines the movement state from the current position information of the current position calculation unit SP22, and when it is stopped, the new posting information can be superimposed on the map image regardless of the current position. .
Then, the map generation unit SP31 displays the generated map image or the posted information-added map image on the display unit DA22 of the display audio DA1 via the display unit SP32 and the cooperation control unit SP11.

  When the cooperation controller DA11 detects that the smartphone SP1 and the display audio DA1 are connected via the input / output interface DA12 via USB or the like, the cooperation controller DA11 controls various data communications between the smartphone SP1 and the display audio DA1. . Specifically, an instruction operated on the operation unit DA13 is transmitted to the smartphone SP1 via the input / output interface DA12, or a map image or a post information-added map image transmitted from the smartphone SP1 is received.

The operation unit DA13 includes various operation buttons, a touch panel attached to the screen of the display unit DA22 described later, and the like, an instruction operation (for example, map image display operation) to the smartphone SP1 and a disk driver described later by user operation. An instruction operation (for example, a disc playback operation) to the DA 31 can be performed.
The command control unit DA14 creates an instruction command for performing an operation corresponding to the instruction operation to the smartphone SP1 and the instruction operation to the disk driver DA31 performed using the operation unit DA13, and the instruction command is used as the cooperation control unit. Output to DA11 and disk driver DA31.

When the map image or the post information-added map image is input from the cooperation control unit DA11, the display control unit DA21 displays them on the display unit DA22.
Further, when video data is input from the disk driver DA31, the display control unit DA21 displays the video data on the display unit DA22.

The disk driver DA31 is composed of an optical pickup device, a motor that drives the optical pickup device, and the like, and has a function of irradiating a CD or DVD with light and detecting the reflected light with a detector or the like. When there is a CD playback request from the command control unit DA14, the disk driver DA31 reads the audio data from the CD and outputs it to the audio control unit DA32. Also, when a DVD playback request is received from the command control unit DA14, audio data and video data are read from the DVD, audio data is output to the audio control unit DA32, and video data is output to the display control unit DA21.
The sound control unit DA32 receives the sound data sent from the disk driver DA31 and the sound data sent from the cooperation control unit DA11, and outputs them to the speaker DA33, and the speaker DA33 reproduces the input sound data.

Next, post information acquisition and post information accompanying map display processing according to an embodiment of the present invention will be described with reference to FIG.
When the user connects the smartphone SP1 and the display audio DA1 using USB (S201), the cooperation control unit SP11 and the cooperation control unit DA11 each detect that the smartphone SP1 and the display audio DA1 are connected, and the smartphone Prepare for cooperative control of SP1 and display audio DA1. Thereafter, when the user uses the operation unit DA13 to instruct the posted information-attached map display (S202), the operation unit DA13 outputs the operation instruction to the command control unit DA14. Then, the command control unit DA14 outputs the post information-attached map display instruction to the smartphone SP1 via the cooperation control unit DA11 and the input / output interface DA12.
When the post information accompanying map display instruction is input via the input / output interface SP12, the cooperation control unit SP11 of the smartphone SP1 outputs the instruction to the input processing unit SP14. Then, the input processing unit SP14 outputs a post information acquisition instruction and a post information accompanying map display instruction to the post information acquisition unit SP24, a map display instruction to the map acquisition unit SP25, and a post information auxiliary map display instruction to the map generation unit SP31. To do.

When the posting information acquisition instruction is input from the input processing unit SP14, the posting information acquisition unit SP24 transmits a posting information transmission request to the SNS server 3 via the communication unit SP21, and the communication unit SP21 from the SNS server 3. After the posting information is acquired via, it is stored in the memory SP23. At this time, the posting information acquisition unit SP24 attaches a new posting flag to the received posting information and stores it in the memory SP23 (S203).
Then, when the posting information supplementary map display instruction is input from the input processing unit SP14, the posting information acquisition unit SP24 is based on the current position input from the current position calculating unit SP22 among the posting information stored in the memory SP23. The posted information included in the range of the map data acquired by the map acquisition unit SP25 is read out and output to the map generation unit SP31 (S204).
At the same time, when a map display instruction is input from the input processing unit SP14, the map acquisition unit SP25 transmits a map data transmission request to the map server 4 via the communication unit SP21, so that the map server 4 Map data around the position is acquired via the communication unit SP21 and output to the map generation unit SP31.

  Then, the map generation unit SP31 determines whether the posting information is a new posting based on the new posting information flag of the posting information output from the posting information acquisition unit SP24, and the posting information is the new posting information. In such a case, the post information is superimposed on the map image output from the map acquisition unit SP25 only when the position information of the post information and the current position of the current position calculation unit SP22 are separated by a reference value (for example, 100 m) or more. A post information-added map image is generated.

The map generation unit SP31 outputs the generated post information-added map image to the cooperation control unit SP11, and the cooperation control unit SP11 outputs the post information-added map image to the display audio DA1 via the input / output interface SP12. When the post information accompanying map image is input, the linkage control unit DA11 of the display audio DA1 outputs the post information accompanying map image to the display control unit DA21, and the display control unit DA21 displays the post information accompanying map on the display unit DA22. It is displayed (S205).
Steps S204 and S205 are processed every time the current position changes.

  Then, when the display of the posted information supplementary map is completed, the posted information acquisition unit SP24 stores the acquisition date / time information acquired from the SNS server 3 in the memory SP23 (S206).

  Subsequently, the posting information acquisition unit SP24 checks whether or not a predetermined time has elapsed since the previous posting information was acquired (S207). Here, if a predetermined time or more has elapsed since the last posting information was acquired, the posting information acquisition unit SP24 creates a posting information transmission request based on the acquisition date and time information stored in the memory SP23, and the SNS. By transmitting a posting information transmission request to the server 3 via the communication unit SP21, the posting information posted to the SNS server 3 after the previous acquisition is acquired from the SNS server 3 via the communication unit SP21 (S208). ). Then, the posting information acquisition unit SP24 adds a new posting flag “1” to the acquired posting information and stores it in the memory SP23. For the post information stored in the memory SP23, the new post flag is set to “0” (FIG. 7).

  On the other hand, if the predetermined time has not elapsed, it is confirmed whether or not a posting information acquisition operation has been performed by the user (S209). When the user performs post information acquisition operation using the operation unit DA13, the operation instruction is output from the command generation unit DA14 to the input processing unit SP14 by the cooperative control of the cooperation control units DA11 and SP11, and the post information is input from the input processing unit SP14. Input to the acquisition unit SP24. When the posting information acquisition instruction is input, the posting information acquisition unit SP24 creates a posting information transmission request based on the acquisition date and time information stored in the memory SP23 as in step S208, and sends it to the SNS server 3. Then, the posting information posted to the SNS server 3 after the previous acquisition is acquired from the SNS server 3 via the communication unit SP21 by transmitting the posting information transmission request via the communication unit SP21. Then, the posting information acquisition unit SP24 adds a new posting flag “1” to the acquired posting information and stores it in the memory SP23. For the post information stored in the memory SP23, the new post flag is set to “0”.

  On the other hand, if the acquisition operation is not performed, it is confirmed whether the smartphone SP1 is turned off or the connection between the smartphone SP1 and the display audio DA1 is released (S210). Here, when the power is turned off or the connection is released, the cooperation control unit SP11 and the cooperation control unit DA11 stop the cooperation control, and the display of the post information-added map image on the display audio DA1 is ended. On the other hand, if the power is not turned off or the connection is not released, the process returns to the confirmation of whether or not the predetermined time has elapsed in step S207.

A specific screen transition of the posted information incidental map screen displayed on the display unit DA32 by the above-described posted information incidental map display process will be described with reference to FIG.
When the posting information acquisition unit SP24 acquires the posting information from the SNS server 3 in step S203 and the posting information TW1 to TW7 is stored in the memory SP23 as shown in FIG. 5, the posting information acquisition unit SP24 calculates the current position. Based on the current position information output from the part SP22 and the position information of the posted information, the posted information TW1, TW2, TW4, TW7 around the current position is read and output to the map generating part SP31.

Of the posted information output from the posted information acquiring unit SP24, the map generating unit SP31 has posted information TW1 “Idle discovery ♪”, posted information TW2 “I arrived at store A”, and posted information TW4 “Funny car found!” Since the distance from the current position is less than the reference value (broken line circle in FIG. 8A), the display control is performed so that these pieces of posted information are hidden, while the posted information TW7 “Store is ready. "" Generates a post information accompanying map image that is display-controlled so as to display this post information because the distance from the current position is more than the reference value (broken line circle in FIG. 8A). Then, the map generation unit SP31 outputs the generated post information-added map image to the display audio DA1 via the cooperation control unit SP11. The display control unit DA21 of the display audio DA1 displays the input post information-added map image on the display unit DA22 via the cooperation control unit DA11, so that the screen of FIG. 8A is provided to the user.
In FIG. 8, the posted information in the solid line balloon diagram shows the posted information displayed on the posted information accompanying map, but the posted information displayed in the dashed line balloon diagram is originally displayed on the posted information accompanying map. Although not illustrated, for the convenience of explanation, the drawing is performed using a one-dot chain line.

Thereafter, when the user moves and the current position changes to the position indicated by VP in FIG. 8B, the posting information acquisition unit SP24 similarly reads the posting information from the memory SP23 and outputs it to the map generation unit SP31.
Similarly, the map generation unit SP31 includes post information TW1 “Idle discovery ♪” and post information TW2 “Arrive at store A” among the post information input from the post information acquisition unit SP24, as in FIG. The display information TW4 “Funny car found!” Is to be displayed and displayed on the map because the distance from the current position is more than the reference value due to movement. Display controlled. In addition, the post information TW7 “Store is ready” is displayed on the map as it is because the distance from the current position is less than the reference value due to the movement, but it was displayed at the time of FIG. 8A. A post information accompanying map screen whose display is controlled to be generated is generated.
The map generation unit SP31 outputs the generated post information-added map image to the display audio DA1 via the cooperation control unit SP11. The display control unit DA21 of the display audio DA1 displays the input post information-added map image on the display unit DA22 via the cooperation control unit DA11, so that the screen of FIG. 8B is provided to the user.

Thereafter, when a predetermined time elapses after the posting information is acquired from the SNS server 3, the posting information acquisition unit SP24 acquires the posting information newly posted to the SNS server 3 after acquiring the posting information from the SNS server 3 last time. Obtained from the server 3 and stored in the memory SP23. As a result, post information TW11 and post information TW12 are newly added and stored in the memory SP23 (FIG. 7).
Similarly, display control is performed to hide the new posted information whose distance from the current position is less than the reference value, and the posted information TW2 “Arrived at store A”, posted information TW11 “Closed this month ... ”Is a display target, post information TW4“ Funny car found! ”, Post information TW7“ Store is ready ”, and post information TW12“ Accident occurs! ”Is generated. . Then, the map generation unit SP31 outputs the generated post information-added map image to the display audio DA1, and is displayed on the display unit DA22 of the display audio DA1 by the display control unit DA21 of the display audio DA1 (FIG. 8 (c). )).

  By configuring as described above, when the newly posted information newly acquired from the SNS server 3 is displayed on the map, the position information of the acquired posted information is compared with the current position, and these distances are equal to or greater than the reference value. Certain posting information is displayed, and conversely, posting information whose distance is less than the reference value is hidden, and it is possible to limit the display of newly displayed posting information near the current position or near the vehicle position Therefore, dangerous driving and walking of the user can be prevented.

-Modification-
In the display control of the posted information-attached map image in the embodiment, as one of the conditions for not displaying the new posted information, posted information whose distance between the current position and the posted information is less than a reference value (100 m). However, the reference value can be changed according to the display scale of the map.
That is, when the display scale of the map is a detailed scale (for example, “50 m”), the reference value of the distance from which the new posting information is not displayed is set to a small value (for example, “100 m”). 9 is displayed, and when the display scale of the map is a wider scale (for example, “200 m”), the reference value is set to a larger value (for example, “400 m”). The post information accompanying map image shown in b) is displayed, and new post information in a wider area is hidden. Further, when the scale is wider (for example, “1 km”), by setting the reference value to a larger value (for example, “2 km”), new post information in a wider area is hidden.
Further, regardless of the display scale of the map, the reference value of the distance from which the new posting information is not displayed can be fixed (for example, “100 m”). In this case, the posting shown in FIG. The information-added map image is displayed, and the same posting information as that shown in FIG.
The map display scale and the reference value can be set by the user. By causing the user to select the map display scale and the reference value, it is easier for the user to use and the map display device 5 according to the user's taste can be provided. It becomes possible.

  Furthermore, in the said Example, when displaying contribution information on a map, although the example which displays contribution content (character string) in the position which the positional information on contribution information shows was shown, it is not restricted to this, Display formats, such as an icon It is also possible to display using. By doing in this way, it becomes possible to display concisely about contribution information with a long character string of contribution contents.

  Moreover, although the example which acquires the posting information to SNS and performs display control was shown in the said Example, if it is information containing a positional information and date information, it will not be this limitation. For example, the image data is acquired from a server that accumulates image data including position information and date / time information, and the display control is performed, or the coupon information of a facility including position information and date / time information is stored from the server that accumulates advertisements. It is also possible to acquire advertisements and control display.

And in the said Example, although the smart phone SP1 which is a communication apparatus, the display audio DA1 which is a vehicle-mounted apparatus, and the map server 4 were each a separate apparatus, these were one apparatus, for example, vehicle-mounted It can also be applied to a navigation device.
In this case, as in the system shown in FIG. 10, the PC 1, the mobile phone 2, the SNS server 3 that provides various SNS services, and the map display device 9 are connected via the network 6. And in the said Example, although the map database was provided in the map server 4 and map data was acquired via the network, the map display apparatus 9 reads from the map database provided in the vehicle-mounted navigation apparatus. Further, the in-vehicle navigation device is provided with a route search function and a route guidance function, and can guide the route from the vehicle position to the destination.

1 PC
2 Mobile phone 3 SNS server 4 Map server 5, 9 Map display device 31, 41, SP21 Communication unit 32 SNS server control unit 33 Posted information database 42 Map server control unit 43 Map database SP1 Smartphone DA1 Display audio SP11, DA11 Cooperation start unit SP12, DA12 Input / output interface SP13, DA13 Operation unit SP14 Input processing unit SP22 Current position calculation unit SP23 Memory SP24 Posting information acquisition unit SP25 Map acquisition unit SP31 Map generation unit SP32, DA22 Display unit DA14 Command control unit DA21 Display control unit VP Current Position T1-T4, TW1-TW7, TW11, TW12

Claims (8)

In a map display device that acquires information from an external server that accumulates information including position information and date and time information, and displays the information at a specific position on a map that matches the position information included in the acquired information.
A current position calculator for calculating the current position;
A communication unit that communicates with the external server;
An acquisition date storage unit that stores the date and time when the information is acquired from the external server via the communication unit;
An acquisition unit that acquires information after the acquisition date and time from an external server based on the acquisition date and time information stored in the acquisition date and time storage unit;
If the distance between the position of the position information included in the information acquired by the acquisition unit and the current position calculated by the current position calculation unit is less than a reference value, the information is not displayed and the information is not displayed. If the distance between the position of the position information and the current position is greater than or equal to a reference value, a display control unit that performs display control to display the information;
A display unit for displaying the display-controlled information by the display control unit;
A map display device comprising: The display control unit changes the reference value according to a map scale being displayed.
The map display device according to claim 1. The display control unit changes the reference value to be larger as the map scale being displayed is wider.
The map display device according to claim 2, wherein: A determination unit for determining whether or not the vehicle is moving based on the position information of the current position calculation unit;
The display control unit performs the display control when it is determined that the determination unit is moving, and the display control unit is controlled by the acquisition unit when it is determined that the determination unit is stopped. Display all the acquired information,
The map display device according to any one of claims 1 to 3. The display control unit displays the information using an icon when displaying the information on a map.
The map display device according to any one of claims 1 to 4, wherein The display unit is an external display device.
The map display device according to any one of claims 1 to 5, wherein The information is a text or image posting, and the position included in the position information is a position where the information is posted.
The map display device according to claim 1, wherein The information is coupon information or an advertisement of a facility, and the location information is a location of the facility.
The map display device according to any one of claims 1 to 7, wherein

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