JP2005181062A - Map display device, map information updating method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the load and the time of a user required for updation, by eliminating the labor required for updating of map information. <P>SOLUTION: This device has a display means for reading out the map information from a storage device (HDD) 16 or a disk device 17 storing the map information, and displaying it on an output device (monitor) 14, and an external communication device 15 for receiving updated map information to the map information stored in a recording medium, based on a signal always emitted from an information providing device which is a device installed near an organized road or a landmark, for emitting for example, beacon information. The updated map information is monitor-outputted by the display means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a map display device and the like, and more particularly to a map display device and the like used for, for example, an in-vehicle car navigation system.

  In navigation systems (navigation devices) that have been widely used in recent years for mounting on mobile objects such as automobiles or for portable use, maps, highway maps, etc. are stored in advance in various memories, for example, vehicles equipped with in-vehicle navigation systems. Is recognized by, for example, GPS (Global Positioning Systems). The recognized current position is superimposed on predetermined map information read from various memories and displayed on a monitor such as a liquid crystal display.

  Electronic map information used in these navigation systems may be stored in a storage device such as a hard disk drive (HDD) and read directly from the HDD. Also, map information may be recorded on a recording disk such as a CD-ROM or DVD-ROM, and the map information may be read by a drive device for driving these recording media. The map information read from the HDD and various drive devices is sent to the control device of the navigation system, and then subjected to predetermined processing and displayed on the monitor.

  Conventionally, map information used when navigating a user (user) in a navigation system is fixed when the navigation system is purchased. In order to use the navigation system comfortably, it is desirable to obtain and use a recording disk in which the latest map information database is recorded (stored). However, the recording disk on which the map information database is recorded is less frequently updated, and even if only a part of the map information database is updated, the recording disk on which all the map information databases are recorded Needs to be purchased anew.

  In order to deal with such problems, for example, there is a conventional technique that always provides the latest map information database by distributing the map information database via a network and improves the convenience of the navigation device (for example, , See Patent Document 1).

JP 2002-333322 A (page 4-5, FIG. 1)

  As described above, by adopting the technique described in Patent Document 1, the latest map information can be acquired from a map information database server connected via a network and stored in, for example, an HDD. New map information can be reflected. However, in order to update the map information by performing the procedure from the network or the like, the user's knowledge regarding the network connection is required, and the effort and time for the network connection are required. Therefore, some users may not obtain the latest map information appropriately. If the map information is not updated properly, for example, if the road is newly constructed, the shape of the road is changed, the landmark is changed, etc. Will be reduced.

The present invention has been made to solve the technical problems as described above, and an object of the present invention is to update map information without any user intervention.
Another object is to keep the number of update processes to a minimum by performing the update process when the map information needs to be updated.
Still another object is to enable identification and billing of individual users by performing authentication or the like when updating map information, for example.
Still another object is to make it possible to update the map information without burdening the user with costs, for example.

  In order to achieve such an object, the present invention, for example, in a display device used in a navigation system, from equipment that generates beacon information arranged on a newly constructed road with respect to map information from the time of purchase, The update map information is received using the equipment that receives the beacon information, thereby simplifying the troublesome update process of the map information. That is, the map display device to which the present invention is applied is a display unit that reads map information from a recording medium storing map information and displays it on a monitor, and is installed near a constructed road or landmark, for example, And receiving means for receiving updated map information for the map information stored in the recording medium based on a signal that is constantly issued from an information providing device that is a device for generating beacon information, and displaying updated map information Monitor output by means.

  Here, the receiving means receives an update signal from the information providing apparatus, determines whether or not the update signal is a new update signal that has not been received so far according to the position and / or time at which the update signal is received, The update map information may be received when it is determined as a new update signal.

The storage device may further include storage means for storing the updated map information received by the receiving means on a recording medium, and the display means may display the updated map information stored by the storage means on a monitor. Further, the receiving means may receive the advertisement information together with the updated map information, and the display means may display the received advertisement information on a monitor.
Here, the information processing apparatus further includes an authentication information transmitting unit that transmits the authentication information, and the receiving unit receives the updated map information based on the transmitted authentication information. It is also preferable from the viewpoint that the updated map information can be acquired in the state where the settlement has been made.

  On the other hand, the present invention is a map information update method for updating map information stored in a recording medium, and is an update constantly issued from an information providing apparatus installed near a constructed road or landmark. A signal is received, it is determined whether or not the map information should be updated from the received update signal, and if it is determined that the map information should be updated, the update map information is received from the information providing device, and the received update map information Is stored in a recording medium.

  Here, the map information stored in the recording medium is the map information used in the navigation system. If the updated map information stored in the recording medium is displayed on the monitor, a new building is created. It is possible to appropriately update information such as the constructed road, the shape of the road, the newly constructed landmark and the change thereof, and it is excellent in that, for example, the function of the navigation system can be maintained high.

In addition, information about the advertisement is added to the received updated map information, and when the updated map information is displayed, the information provider can display the advertisement information together on the monitor. It becomes possible to operate using the advertising fee from the tenant side, and for example, the user can acquire the updated map information without paying the consideration.
Further, after receiving the update signal, the authentication information is transmitted to the information providing apparatus, and the updated map information based on the verification of the authentication information is received from the information providing apparatus, and the settlement based on the authentication is performed. Is preferable in that it becomes possible.

  Furthermore, the present invention can be grasped as a program used in a navigation system that is a computer. That is, the present invention is a program used in a navigation system that reads map information stored in a recording medium and displays the map information on a monitor. The program is always provided from an information providing device installed near a constructed road or landmark. The navigation system has a function of acquiring the updated map information to be issued and a function of displaying the acquired updated map information on the monitor. Here, the function of acquiring the updated map information can be characterized in that the updated map information is acquired via a device that generates beacon information.

  From another point of view, the program used in the navigation system to which the present invention is applied has a function of constantly obtaining an update signal issued from an information providing device installed near a constructed road or landmark. A function for determining whether or not to update the map information from the acquired update signal, a function for outputting a request for updated map information when it is determined to be updated, and an update map information from the information providing device. The navigation system has a function to acquire and a function to display the acquired updated map information on the monitor.

  These programs can be provided to a computer apparatus by storing and distributing in a magnetic disk, an optical disk, a semiconductor memory, or other recording medium, or by distributing via a network.

  According to the present invention configured as described above, it is possible to save the effort and time required for updating the user by saving the trouble of updating the map information.

The best mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a diagram showing a hardware configuration of a map display system (map display device) 10 according to the present embodiment.
The map display system 10 can be applied to various systems that display map information, such as an in-vehicle navigation system (car navigation system), a portable navigation system, a portable information device such as a PDA, and various computer devices. . Here, the “system” means a logical collection of a plurality of devices (functions), and does not ask whether or not the devices (functions) of each configuration are in the same casing.

  A map display system 10 shown in FIG. 1 executes various kinds of information and controls the entire system as a backbone of this system, and inputs various information by a user (user) to the control apparatus 11. An input device 12 that enables positioning, a positioning device 13 that performs positioning of the vehicle position, such as a GPS receiving device that receives GPS information, and an output device (monitor, for example, that displays map information, vehicle position information, etc. ) 14. Further, for example, an external communication device 15 configured to receive beacon information and communicated with a map information transmitting device or an authentication information receiving device provided outside, a storage device that stores map information and various application programs ( A hard disk drive (HDD) 16 and a disk device 17 for reading a CD (Compact Disc) -ROM (Read Only Memory) or DVD (Digital Versatile Disc) -ROM or the like in which map information (map data) of a predetermined wide area is stored. It has. Further, the card reader 18 for reading the IC card 19 is provided. In the present embodiment, the storage means that are read and written by the storage device 16 and the disk device 17 are collectively referred to as “recording medium”.

  In FIG. 1, a control device 11 manages input / output between a CPU (Central Processing Unit) 21 that performs control and arithmetic processing of the entire system and peripheral devices such as an input device 12 and an output device 14. A / O circuit 22, a ROM 23 storing a program for operating the system, and a RAM 24 as an internal storage device including a DRAM (Dynamic Random Access Memory) or the like are provided. Further, for example, a VRAM (Video RAM) 25 used as a working memory for writing map information for monitor output to the output device 14 is provided. The contents drawn in the VRAM 25 are displayed and output on the output device 14 which is a monitor.

  The input device 12 switches an area and scale of a displayed map and performs input operations for calling various functions. The input device 12 is integrated with buttons and remote controls provided on the system casing and the screen of the output device 14. This is realized by the touch panel provided in The positioning device 13 includes a GPS antenna that receives a signal transmitted from a GPS satellite, and performs positioning based on a signal obtained from the GPS antenna. Further, when the present embodiment is used in a car navigation system, the vehicle speed sensor that detects the vehicle speed of the vehicle on which the system is mounted, the gyro sensor that detects the rotational displacement of the vehicle, the vehicle speed sensor, and the gyro sensor are further obtained. Correction means for correcting the positioning result based on GPS based on the detected value can also be provided. Various types of map data having different scales for the same region are stored in various recording media such as a hard disk of the storage device 16 and a disk of the disk device 17. Also, point data such as nodes (points) and search data such as facility names are stored in association with map data.

  Based on the control program stored in the ROM 23, the CPU 21 executes various processes using, for example, the RAM 24 as a working memory. As this processing, for example, map data, facility data, symbol marks, drawing colors, drawing patterns, etc. are read from a disk device 17 such as a DVD-ROM, coordinate conversion, position information management, etc. are performed. To develop map data. From the input device 12, various inputs by the user, such as scrolling of the map displayed on the monitor screen of the output device 14, magnification conversion, and display of a list, are transmitted to the system. The CPU 21 obtains such information via the I / O circuit 22 and executes various processes such as a scroll process and a magnification conversion process based on the information. Various programs can be downloaded to the system via the external communication device 15, and various information can be input from the outside and various information can be output to the outside. As the external communication device 15, in addition to the optical / radio wave beacon receiver and the FM multiplex broadcast tuner, other communication means such as a mobile phone, PHS and Bluetooth can be considered. The map information and the like are read from the recording medium such as the disk device 17 and the storage device 16 by the map data reading means of the CPU 21, and the information supplied via the external network may be read from the external communication device 15. is there.

  Here, FIG. 1 only illustrates the hardware configuration of the map display system 10 that implements the present embodiment. If the present embodiment is applicable, other various configurations can be employed. For example, a configuration for performing audio output, or when the present embodiment is used in a car navigation system or the like, traffic information receiving means for acquiring traffic information such as a parking lot can be provided.

  FIG. 2 is a functional block diagram showing the overall hardware configuration of the map display system 10 as shown in FIG. 1, which is mainly executed by a program developed in the RAM 24 by the CPU 21 shown in FIG. The control device 11 to which the present embodiment is applied includes an input information processing unit 51 that receives an input signal from the input device 12 by a user, and a position that receives a GPS signal from the positioning device 13 and detects the position of the vehicle. As an information processing unit 52, an authentication processing unit 53 that transmits personal information for authentication on the center side that provides map data for update, and receives authentication results from the center side, and equipment that receives beacon information An update information processing unit 54 that receives update information, a map information processing unit 55 that performs various processes such as selection of map information (map data) to be read and displayed from the disk device 17 or the storage device 16, a graphic controller, and a VRAM 25 And a screen drawing processing unit 56 for controlling drawing of the map and the like in the output device 14. The personal information processing unit 57 that processes personal information stored in the IC card 19 and read by the card reader 18, the encryption unit 58 that encrypts personal information processed by the personal information processing unit 57, and the IC card 19 A payment information processing unit 59 for processing the payment information stored and read by the card reader 18 is provided. When the present embodiment is used in a car navigation system or the like, a route setting control unit that calculates a recommended route based on a departure place, a waypoint, and a destination set by the user can be provided.

  FIG. 3 is a diagram illustrating an example of a transmission / reception device on the center side that performs communication with the authentication processing unit 53 and the update information processing unit 54 using the external communication device 15 of the map display system 10 in the present embodiment. Here, a reception device 72 that receives authentication information, for example, a transmission device 73 that generates beacon information and transmits update information is provided on and around the newly prepared road 71. The receiving device 72 and the transmitting device 73 are connected to the center 80. The center 80 includes various databases such as an update information database 81 for storing update information, a personal information / accounting information database 82 for storing personal information and billing information. Further, the encrypted authentication information received by the receiving device 72 is decrypted to extract the authentication information, and processed by the authentication processing unit 83 and the authentication processing unit 83 that execute various processes on the extracted authentication information. A billing processing unit 84 that reads billing information from the personal / billing information database 82 based on the authentication information and performs billing processing, and an update information transmission unit 85 that reads the update information from the update information database 81 and outputs the update information are provided. Update information from the update information transmission unit 85 is transmitted to the map display system 10 via the transmission device 73.

  Beacons (information and communication facilities) installed on roads are generally used for road traffic information communication systems (VICS: Vehicle Information and Communication Systems) that transmit information such as traffic jams, accidents, construction, and time required to car navigation systems in real time. Communication System). In the present embodiment, for example, the updated map information is transmitted by using a light beacon or a radio wave beacon that is always emitted by the transmission device 73 that is one of the beacons. In the external communication device 15 functioning as the light / radio wave beacon receiver of the map display system 10, the beacon signal is always ready to be received, and when the signal of the transmission device 73 is received, the beacon generating equipment is used. The updated map information can be received by an optical beacon or radio wave beacon that is always emitted from a certain transmission device 73. That is, it is possible to obtain updated map information about a place where the road or landmark has changed in the place where it has passed. By reflecting the received updated map information on the display map, the user can easily obtain the latest road map.

Next, map information update processing performed in the present embodiment will be described.
FIG. 4 is a flowchart showing map information update processing executed by the control device 11 of the map display system 10. First, the position information processing unit 52 of the control device 11 receives position information from the positioning device 13 (step 101). Based on the received position information, the map information processing unit 55 reads the map information from the recording medium such as the storage device 16 or the disk device 17 (step 102), and the drawing process is executed by the screen drawing processing unit 56. The data is output to the output device 14 (step 103). Here, when the update information processing unit 54 determines whether or not an update radio wave (update signal) is received from the transmission device 73 on the center 80 side (step 104), the update radio wave (update signal) is not received. The process of returning to step 101 and sending the map information to the output device 14 is repeated to show the current position and the surrounding map to the user (user). When the update radio wave (update signal) is received, the update information processing unit 54 compares the position and / or update time (step 105). The past update record is stored as a history in the storage device 16, for example, and it is determined whether or not a new update radio wave (update signal) has been received based on the past update record (step 106). Whether or not it is a new update radio wave (update signal) is raised, for example, when it is received at the first position (location) or when a certain time has passed since the previous update time. For example, as compared with the case where data is acquired from a server via a network or the like, it is possible to easily determine whether or not it is a new update.

  If it is not a new update, the process of returning to step 101 and sending the map information to the output device 14 is repeated. If it is a new update, the map information processing unit 55 requests the map information to be updated from the center 80 (step 107). When the map information to be updated is acquired (received) by the update information processing unit 54 (step 108), the map information processing unit 55 performs update processing of the map information in the recording medium such as the storage device 16 or the disk device 17. (Step 109) The updated map information is stored in a recording medium such as the storage device 16 or the disk device 17 (Step 110), and the process returns to Step 101. Here, although the end of the process is not shown, the process ends when, for example, the user performs an operation such as turning off the display of the navigation system after elapse of a certain time.

  If the updated map information is output from the transmission device 73 as it is, the processing in steps 107 and 108 is omitted, and it is recognized in step 106 that the received update radio wave is new. In this case, the map information update process in step 109 can be performed. For example, when a user who uses the map display system 10 enters a range where radio waves emitted from the transmission device 73 installed near the newly-developed road 71 reach, the update information is updated to the update information processing unit 55. Is obtained (received) by Then, it is investigated whether or not the update information is recorded in the recording device 16 or the disk device 17. At this time, if the update information is not recorded, the newly prepared information on the road 71 is stored in a recording medium such as the recording device 16 or the disk device 17. If already recorded, the received update information is discarded. With this configuration, the user can use the navigation system (map display system 10) while constantly updating information on the newly prepared road 71 that he or she may pass through. There is no problem such as getting lost or wasteful effort in updating the map. Further, the updated information can be not only road information but also changed landmarks and tenant information.

  FIGS. 5A and 5B are flowcharts showing map information update processing including processing related to transmission / reception of authentication data (authentication information) and verification of authentication data. FIG. 5A shows processing on the map display system 10 side, and FIG. 5B shows processing on the center 80 side. First, as shown in FIG. 5A, the position information processing unit 52 of the control device 11 first receives position information from the positioning device 13 (step 201). The map information processing unit 55 reads the map information from the storage device 16 and the disk device 17 based on the acquired position information (step 202), the drawing process is executed by the screen drawing processing unit 56, and the map information is output to the output device 14. (Step 203). Here, the update information processing unit 54 determines whether or not an update radio wave (update signal) has been received from the transmission device 73 on the center 80 side (step 204), and the update radio wave (update signal) has not been received. The process of returning to step 201 and sending the map information to the output device 14 is repeated to show the user the current position and the surrounding map. When the update radio wave (update signal) is received, the update information processing unit 54 compares the position and update time (step 205). Then, it is determined whether or not a new update radio wave (update signal) has been received (step 206). If it is not a new update, the process returns to step 201, and if it is a new update, the process proceeds to step 207 and subsequent steps.

  Here, first, the personal information processing unit 57 reads the personal information and the payment information from the IC card 19 in which the personal information and the payment information are stored, and encrypts it by the encryption unit 58 (step 207). The personal information and the payment information are read from the IC card 19 by the card reader 18 and then temporarily stored in the storage device 16. Thereafter, the personal information and the like are read from the storage device 16 when necessary. It is also possible to do. The encrypted personal information and payment information are transmitted to the center 80 side together with the map information request as authentication data (authentication information) (step 208). The communication method used at this time may be any means as long as communication can be performed such as radio waves and light. However, it is preferable that rapid communication is performed. Thereafter, updated map information based on the authentication data is received (step 209), and the map information is updated (step 210). Thereafter, the map information processing unit 55 stores the updated map information in the storage device 16 or the disk device 17 (step 211), and returns to step 201.

  On the other hand, as shown in FIG. 5B, the center 80 waits for reception of a map information request from the map display system 10 side (step 251). When the request is received, the authentication processing unit 83 shown in FIG. 3 decrypts the authentication data (step 252), and the personal information stored in the personal / billing information database 82 is used to verify the authentication data. (Step 253). If they do not match as a result of the collation, the updated map is not sent, and the process returns to step 251 to wait for reception of a new map information request. If they match, the update information transmission unit 85 reads the update information from the update information database 81 and transmits the update map information via the transmission device 73 (step 255).

  As described above, according to the processing shown in FIGS. 5A and 5B, an individual can be specified by performing authentication using personal information and settlement information of the IC card 19 when updating the map information. For example, by specifying this individual, it is possible to charge, for example, and to obtain an appropriate price on the center 80 side. The billing process is executed by the billing processing unit 84 shown in FIG. 3, taking into account the number of map information requests made on the map display system 10 side, the amount of updated map information to be provided, the convenience of information, etc. Determined for each authenticated individual. The billing information determined by the billing processing unit 84 is stored in the personal / billing information database 82, and the billing information can be provided to the map display system 10 together with the updated map information to be transmitted. In such a case, the billing information from the billing processing unit 84 is transferred to the update information transmitting unit 85, and the update information transmitting unit 85 adds the billing information to the updated map information, and the map display system 10 via the transmitting device 73. Sent to. In the map display system 10 that has received the billing information, the update information processing unit 54 of the control device 11 recognizes the billing information, and the screen drawing processing unit 56 displays the amount of money on the end of the map display. Note that it is also possible to configure the payment information to be stored in an IC card or the like via the payment information processing unit 59.

  In this way, by constructing the billing system, the information providing side (center 80 side) can also obtain appropriate compensation. However, there is a case where the user is wary of use when charged. Further, it is necessary to perform authentication or the like every time updated map information is provided. Therefore, for example, an advertisement is added to the updated map information, the information providing side collects a fee from the advertisement providing side, and the user of the navigation system (map display system 10) can receive the update free of charge. You can also Hereinafter, a description will be given with reference to FIGS.

  FIG. 6 is a diagram showing the structure of advertisement data transmitted together with the updated map information. In the terminal (not shown) such as a PC on the advertiser side, items such as the advertisement name, advertiser, advertisement text, character direction, font size, display time, etc. are filled in, for example via a network (not shown). To the terminal of the center 80. In addition, information on a specific display layout and the like are also output from the advertiser side terminal. For example, an advertisement display frame pattern, an advertisement display pattern, an advertisement display position, coordinate information, and the like. In addition to the start date and end date of the advertisement, information such as option image data and its display position is also output. In the advertisement display frame pattern, patterns 1 to 5 can be selected, and in the advertisement display pattern, patterns 1 to 5 can be selected.

  FIGS. 7A to 7D are diagrams showing pattern examples (pattern 1 to pattern 4) in the advertisement display frame pattern in the advertisement data. First, the advertiser can select four types of advertisement display frames as shown in FIGS. 7A to 7D as advertisement display frame patterns in the advertisement data shown in FIG. At this time, 1 to 4 patterns are prepared for describing the values. Furthermore, when the pattern 5 is selected, bitmap (BitMap) data (for example, a size of 700 * 500) indicating the shape of the frame is inserted at the position of the display frame data. The screen drawing processing unit 56 in the control device 11 of the map display system 10 sets a frame for displaying an advertisement using these values.

  8A to 8D show pattern examples (patterns 1 to 4) of advertisement display patterns in advertisement data. After the advertisement display frame pattern is selected from the advertisement data shown in FIG. 6 as described above, a predetermined advertisement display pattern is selected. In the selection of the advertisement display pattern, for example, the display method as shown in FIGS. 8A to 8D is set using the patterns 1 to 4. Pattern 1 shown in FIG. 8A is an advertisement display by a pop-up screen, pattern 2 shown in FIG. 8B is an advertisement display from below, pattern 3 shown in FIG. 8C is an advertisement display from the left, FIG. Pattern 4 shown in (d) is an advertisement display or the like from an oblique direction. If the pattern 5 is selected at this time, the coordinate system (x, y) and the time (msec) are described in the display pattern data as the position to start writing. In actual display, the image is displayed so as to move from the specified position to the display position (x, y) over a set time.

  In the advertisement data structure shown in FIG. 6, the display position (x, y) coordinates are finally specified. An advertisement start date and an advertisement end date are also specified. The map display system 10 that has received the advertisement data during the advertisement display period displays the advertisement data on the output device (monitor) 14. Also, these pattern data can be unique to each device and can be unified. Further, the display pattern can be determined similarly. Furthermore, by describing the option image that is displayed simultaneously with the advertisement as the bitmap data and the display position as the data, the option image unique to each advertisement can be displayed.

  As described above in detail, according to the present embodiment, for example, in the map display system 10 configured by a navigation system or the like, information from an information providing device installed near a newly constructed road or landmark is provided. Map information can be updated based on the above. In other words, build a spot (information provision device) that sends a signal such as a certain radio wave or optical signal around the changed roadside or entrance, around the changed landmark (near), This is done when map data needs to be updated by transmitting change information to a navigation system that passes near the spot. Compared to the conventional method of exchanging the entire disk at a time and the conventional method that can be updated only at certain intervals, the update is minimal, and labor and time are not required.

  In addition, it has an authentication device inside, it can authenticate using IC card 19, magnetic card, body information, etc. at the time of update, and it can be charged by making payment at the time of map update based on the authentication information It is. Further, when the update is performed, the detailed information of the landmark is provided together (added), thereby promoting the tenant in the landmark. At this time, it is possible to construct a system that operates based on the advertisement fee from the tenant side, does not charge the user, and does not bear the cost.

  Further, the user information used for authentication can include personal information (age, gender, hobbies, past purchase history, etc.) of the user, and an advertisement tailored to the user's preference can be provided. In such a case, in addition to the addition to personal information, it is preferable to add a search keyword to be used for narrowing down when providing advertisements to individuals. The search keywords include “car”, “music”, “brand name”, and the like. It is also possible to use keywords used for searching on the Internet or the like. It is also effective to add a narrowing down based on age range and gender to the advertisement.

It is a figure which shows the hardware constitutions of the map display system by this embodiment. It is the figure which showed the whole structure of the map display system as shown in FIG. 1 with the functional block. It is the figure which showed the example of the transmission / reception apparatus by the side of the center which communicates using the external communication apparatus of a map display system in this embodiment. It is the flowchart which showed the update process of the map information performed with the control apparatus of a map display system. (a), (b) is a flowchart which shows the update process of the map information which added the process regarding transmission / reception of authentication data (authentication information), and collation of authentication data. It is the figure which showed the structure of the advertisement data transmitted with update map information. (a)-(d) is the figure which showed the pattern example (Pattern 1-Pattern 4) in the advertisement display frame pattern in advertisement data. (a)-(d) is the figure which showed the example pattern (pattern 1-pattern 4) of the advertisement display pattern in advertisement data.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Map display system (map display device), 11 ... Control device, 12 ... Input device, 13 ... Positioning device, 14 ... Output device (monitor), 15 ... External communication device, 16 ... Storage device (HDD: Hard Disk Drive) , 17 ... Disk device, 18 ... Card reader, 19 ... IC card, 21 ... CPU (Central Processing Unit), 51 ... Input information processing unit, 52 ... Position information processing unit, 53 ... Authentication processing unit, 54 ... Update information processing unit, 55 ... Map information processing unit, 56 ... Screen drawing processing unit, 57 ... Personal information processing unit, 58 ... Encryption unit, 59 ... Settlement information processing unit, 72 ... Reception device, 73 ... Transmission device 80 ... Center

Claims (13)

Display means for reading the map information from the recording medium storing the map information and displaying it on the monitor;
Receiving means for receiving updated map information for the map information stored in the recording medium based on a signal that is constantly issued from an information providing device installed in the vicinity of the constructed road or landmark. A featured map display device.   The receiving means receives an update signal from the information providing apparatus, determines whether or not the update signal is a new update signal that has not been received according to a position and / or time at which the update signal is received, and receives a new update signal. The map display device according to claim 1, wherein the updated map information is received when it is determined. Storage means for storing the updated map information received by the receiving means in the recording medium;
The map display device according to claim 1, wherein the display unit displays the updated map information stored by the storage unit on the monitor. The receiving means receives advertisement information together with the updated map information,
The map display device according to claim 1, wherein the display unit displays the received advertisement information on the monitor.   The map display device according to claim 1, wherein the information providing device is a device that generates beacon information. An authentication information transmitting means for transmitting authentication information to the information providing apparatus;
The map display device according to claim 1, wherein the receiving unit receives the updated map information based on the transmitted authentication information. A map information update method for updating map information stored in a recording medium,
Receives an update signal that is always sent from the information provider installed near the constructed road or landmark,
Determine whether to update the map information from the received update signal,
If it is determined that it should be updated, update map information is received from the information providing device,
A map information update method, wherein the received update map information is stored in the recording medium. The map information stored in the recording medium is map information used in a navigation system,
8. The map information updating method according to claim 7, wherein the updated map information stored in the recording medium is displayed on a monitor. Information about the advertisement is added to the updated map information received,
9. The map information updating method according to claim 8, wherein when the updated map information is displayed, information related to the advertisement is displayed together on the monitor. After receiving the update signal, send authentication information to the information providing device,
The map information update method according to claim 7, wherein updated map information based on the verification of the authentication information is received from the information providing apparatus. A program used in a navigation system that reads map information stored in a recording medium and displays it on a monitor,
A function of constantly obtaining updated map information issued from an information providing device installed near a constructed road or landmark;
A program for causing the navigation system to realize a function of displaying the acquired updated map information on the monitor. The program according to claim 11, wherein
The function of acquiring the updated map information acquires the updated map information via a device that generates beacon information. A program used in a navigation system that reads map information stored in a recording medium and displays it on a monitor,
A function of constantly obtaining an update signal issued from an information providing device installed in the vicinity of the constructed road or landmark;
A function of determining whether to update the map information from the acquired update signal;
A function to output a request for updated map information when it is determined that it should be updated;
A function of obtaining updated map information from the information providing device;
A program for causing the navigation system to realize a function of displaying the acquired updated map information on the monitor.

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