JP2008175643A - Navigation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an update type navigation system capable of lessening updating information as much as possible, while certainly updating map data of meshes to be updated. <P>SOLUTION: The navigation system is provided with a map data storage device 2 for storing map data partitioned into meshes, a passed mesh storage device 3 for registering meshes passed through in the past, an updating information acquisition section 11 for updating map data corresponding to the meshes registered in the passed mesh storage device, and a map data updating section 12 for updating, by the mesh, map data stored in the map data storage device by using the updating information acquired by the updating information acquisition section. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a navigation device that guides a user to a destination based on map data, and more particularly to a technique for updating map data held in the user.

  2. Description of the Related Art Conventionally, there has been known an update type navigation device that reduces update information as much as possible when it is necessary to update map data held in its own map data storage device. For example, Patent Document 1 discloses a communication navigation device and a server device that efficiently acquire and update map data during route search. The server device receives the route search request from the communication type navigation device, and performs route search to create route information. Next, among the roads to be traveled along the searched route, meshes of map data corresponding to sections other than the expressway section are specified, and mesh codes and update information of those meshes are acquired. Then, the mesh code and the update information and the generated route information are transmitted to the communication type navigation device that has made the route search request. On the communication navigation apparatus side, by using the received mesh code and update information and comparing with the already acquired mesh data, it is possible to identify the required mesh data and request it from the server. At this time, detailed mesh data is not always necessary for expressway sections, so acquiring or updating necessary maps only for mesh data of sections other than expressway sections can obtain appropriate maps while saving communication costs. And updates can be made.

JP 2003-075174 A

  However, in the technique disclosed in Patent Document 1 described above, map data is updated only when a route search is performed, and thus, for example, the vehicle travels on a mesh for which update information is prepared without performing a route search. In this case, there is a problem that the map data is not updated even though the update information exists.

  The present invention has been made in order to solve the above-described problems, and the problem is that an update type capable of reducing update information as much as possible while reliably updating the map data of the mesh to be updated. It is in providing a navigation apparatus.

  In order to solve the above problems, a navigation device according to the present invention includes a map data storage device that stores map data divided into meshes, a passing mesh storage device that registers a mesh that has passed in the past, and a passing mesh storage device. An update information acquisition unit for acquiring update information for updating map data corresponding to the mesh registered in the map, and a map stored in the map data storage device using the update information acquired by the update information acquisition unit And a map data updating unit that updates data in units of meshes.

  According to the navigation device of the present invention, for example, when the power is turned on, the mesh map data that has passed in the past is updated to the latest state in mesh units. Update information can be reduced as much as possible.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
Embodiment 1 FIG.
1 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 1 of the present invention. The navigation device includes a position detection device 1, a map data storage device 2, a passing mesh storage device 3, an input device 4, a control device 5, a display device 6, and a communication device 7. This navigation device is connected to the server 8 by communication.

  The position detection device 1 includes, for example, a GPS (Global Positioning System) sensor, a vehicle speed sensor, and a gyro sensor (all of which are not shown). The position detection device 1 detects its current position based on the GPS signal detected by the GPS sensor, the vehicle speed signal detected by the vehicle speed sensor, and the direction signal detected by the gyro sensor, and the control device 5 as current position data. Send to.

  The map data storage device 2 includes, for example, a hard disk drive (HDD) device, a disk drive device with a DVD (Digital Versatile Disk) or a CD (Compact Disc), or a large-capacity nonvolatile memory. Stores data. Map data is divided into meshes, and each mesh is given version information. The map data stored in the map data storage device 2 is read out by the control device 5.

  The passing mesh storage device 3 includes, for example, an HDD device or a nonvolatile memory, and stores data representing meshes that have passed in the past as a passing mesh list. Writing the data representing the mesh to the passing mesh list stored in the passing mesh storage device 3 is called “mesh registration”, and the data representing the mesh from the passing mesh list stored in the passing mesh storage device 3 is referred to as “mesh registration”. Deletion is called “deletion of mesh registration”. The registration of the mesh and the deletion of the mesh registration are performed by the control device 5. The passing mesh list stored in the passing mesh storage device 3 is read by the control device 5.

  The input device 4 includes, for example, a remote controller (remote controller), operation buttons, a touch panel, or a voice operation device having a voice recognition function. This input device 4 is used by the user to give instructions to the navigation device. For example, it is used for inputting a destination when searching for a route, scrolling a map displayed on the display device 6 or selecting a mesh (details will be described later). Data input from the input device 4 is sent to the control device 5.

  The control device 5 is constituted by a microcomputer, for example, and controls the entire navigation device. Although not shown, the microcomputer is a CPU, a ROM that stores programs and data essential for its operation, a RAM that is used when the CPU performs operations, and an I that controls input / output of signals to / from the outside. / O, a control unit for controlling the display device 6 and the like. For example, the control device 5 performs route calculation based on the map data stored in the map data storage device 2 according to the data input from the input device 4, and displays a map or other message on the display device 6. Display data to be generated or processing for updating map data stored in the map data storage device 2 is executed. Details of the control device 5 will be described later.

  The display device 6 is composed of, for example, an LCD (Liquid Crystal Display), and displays a map, a current position of the vehicle, a route, an intersection guide map, various messages, etc. according to display data sent from the control device 5. . The communication device 7 controls communication performed between the external server 8 and the control device 5 via a network (not shown). Specifically, the communication device 7 transmits the passing mesh list and the version information transmitted from the control device 5 to the server 8 via the network. Also, the update information sent from the server 8 via the network is received and sent to the control device 5. The server 8 provides the update information of the map data held by each navigation device to the navigation devices connected to the network. Details of the server 8 will be described later.

  Next, details of the control device 5 will be described. FIG. 2 is a block diagram illustrating a functional configuration of the control device 5. The control device 5 includes an update information acquisition unit 11 and a map data update unit 12.

  The update information acquisition unit 11 reads out the passing mesh list from the passing mesh storage device 3, and reads out the version information of the map data corresponding to the mesh registered in the read passing mesh list from the map data storage device 2, The read passage mesh list and version information are sent to the communication device 7. The update information acquisition unit 11 receives update information sent from the server 8 via the communication device 7 in response to the transmission of the passing mesh list and version information, and sends the update information to the map data update unit 12.

  The map data update unit 12 updates the map data stored in the map data storage device 2 in units of meshes based on the update information sent from the update information acquisition unit 11, and attaches the version to the transmitted map data Revise information.

  Next, details of the server 8 will be described. FIG. 3 is a block diagram showing the configuration of the server 8. The server 8 includes a communication device 101, a map data storage device 102, and a control device 103. The communication device 101 controls communication performed between a navigation device (not shown) connected via a network and the control device 103. Specifically, the communication device 101 sends the passing mesh list and version information received from the navigation device to the control device 103. Also, update information sent from the control device 103 is transmitted to the navigation device.

  The map data storage device 102 is composed of, for example, an HDD device, and stores the latest map data. The map data stored in the map data storage device 102 is divided into meshes, like the map data held in the navigation device, and each mesh is given version information. The map data stored in the map data storage device 102 is read out by the control device 103.

  The control device 103 is constituted by a server computer, for example, and controls the entire server 8. The control device 103 includes a version information confirmation unit 111 and a difference information generation unit 112. The version information confirmation unit 111 includes version information corresponding to meshes registered in the passing mesh list received from the navigation device via the communication device 101, and the passing mesh list stored in the map data storage device 102. The version information attached to the map data of the mesh corresponding to the registered mesh is compared, and the comparison result is sent to the difference information generation unit 112.

  The difference information generation unit 112 indicates that the comparison result sent from the version information confirmation unit 111 indicates that the version information corresponding to the mesh registered in the passing mesh list received from the navigation device is stored in the map data storage device 102. If it is older than the version information attached to the map data of the corresponding mesh, the difference information of the map data corresponding to these two meshes is generated and sent to the communication device 101. The communication device 101 transmits the received difference information as update information to the navigation device.

  Next, the operation of the navigation device according to the first embodiment of the present invention configured as described above will be described with reference to the flowchart shown in FIG. 4 with a focus on map data update processing performed when the navigation device is activated. explain.

  When the power of the navigation device is turned on, first, a passing mesh list and version information are transmitted to the server 8 (step ST11). That is, the update information acquisition unit 11 first reads the passing mesh list from the passing mesh storage device 3, and then displays the version information of the map data corresponding to the mesh registered in the read passing mesh list as the map data storage device. 2 and the read passing mesh list and version information are sent to the communication device 7. Thereby, the communication device 7 transmits the passing mesh list and the version information to the server 8.

  Next, it is checked whether a response from the server 8 has been received (step ST12). That is, the update information acquisition unit 11 checks whether a response is obtained from the server 8 via the communication device 7. If it is determined in step ST12 that a response from the server 8 has not been received, a standby state is entered while step ST12 is repeatedly executed. In this standby state, the server 8 generates update information and transmits it to the navigation device. The operation of the server 8 will be described later.

  If it is determined that a response from the server 8 has been received in the standby state by repeated execution of step ST12, update information is acquired (step ST13). That is, the update information acquisition unit 11 receives update information sent from the server 8 via the communication device 7 in response to transmission of the passing mesh list and version information, and sends it to the map data update unit 12.

  Next, the map data is updated (step ST14). That is, the map data update unit 12 updates the map data stored in the map data storage device 2 in units of meshes based on the update information sent from the update information acquisition unit 11. Update of map data is performed by replacing the old map data with new map data using the difference information sent as update information.

  Next, the operation of the server 8 will be described with reference to the flowchart shown in FIG. The server 8 first acquires version information of the navigation device (hereinafter referred to as “terminal side”) (step ST21). That is, the version information confirmation unit 111 of the control device 103 acquires the version information received from the navigation device via the communication device 101.

  Next, version information on the server side (server 8) is acquired (step ST22). That is, the version information confirmation unit 111 acquires the version information attached to the map data in the map data storage device 102 corresponding to the mesh registered in the passing mesh list received from the navigation device.

  Next, it is checked whether the terminal side version is older than the server side version (step ST23). That is, the version information confirmation unit 111 compares the version on the terminal side with the version on the server side. If it is determined in this step ST23 that the terminal-side version is not older than the server-side version, it recognizes that the map data held in the navigation device that has transmitted the passing mesh list and the version information is the latest. The server 8 ends the process.

  On the other hand, if it is determined in step ST23 that the version on the terminal side is older than the version on the server side, then difference information is generated (step ST24). That is, the difference information generation unit 112 indicates that the version information corresponding to the mesh registered in the passing mesh list received from the navigation device is stored in the map data storage device 102 based on the comparison result sent from the version information confirmation unit 111. If it is indicated that the version information is older than the version information attached to the corresponding map data, difference information between the map data corresponding to these two meshes is generated.

  Next, the difference information is transmitted as update information (step ST25). That is, the difference information generation unit 112 sends the difference information generated in step ST24 to the communication device 101. Thereby, the communication apparatus 101 transmits the difference information received from the difference information generation unit 112 to the navigation apparatus as update information.

  As described above, according to the navigation device of the first embodiment of the present invention, when the navigation device is turned on, the map data of the mesh that has been passed in the past stored in the passing mesh list is stored in the mesh. Since it is updated to the latest state in units, update information can be reduced as much as possible while reliably updating the map data of the mesh to be updated.

Embodiment 2. FIG.
The navigation device according to Embodiment 2 of the present invention updates map data when a vehicle enters a new mesh.

  The configuration of the navigation device according to the second embodiment is the same as the configuration of the navigation device according to the first embodiment shown in FIG. 1 except for the functional configuration of the control device 5. The configuration of the server 8 is the same as the configuration of the server according to the first embodiment shown in FIG. 3, and the operation of the server 8 is the same as the operation of the server according to the first embodiment shown in the flowchart of FIG. The same.

  FIG. 6 is a block diagram showing a functional configuration of control device 5 included in the navigation device according to Embodiment 2 of the present invention. The control device 5 is configured by adding a passing mesh confirmation unit 13 and a passing mesh storage update unit 14 to the control device included in the navigation device according to Embodiment 1 shown in FIG. Below, it demonstrates focusing on the part which is different from Embodiment 1. FIG.

  The passing mesh confirmation unit 13 detects which mesh of the map data read from the map data storage device 2 the position (current position) indicated by the current position data sent from the position detection device 1 belongs to, Further, it is confirmed whether or not the detected mesh is registered in the passing mesh storage device 3. The confirmation result by the passage mesh confirmation unit 13 is sent to the passage mesh storage update unit 14.

  If the confirmation result sent from the passage mesh confirmation unit 13 indicates that the mesh to which the current position belongs is not registered in the passage mesh storage device 3, the passage mesh storage update unit 14 The mesh to which it belongs is registered in the passing mesh storage device 3.

  Next, the operation of the navigation device configured as described above according to the second embodiment of the present invention will be described with reference to the flowchart shown in FIG. 7, focusing on the map data update process performed when entering a new mesh. While explaining.

  In the map data update process, first, it is checked whether or not the traveling mesh is registered in the passing mesh list (step ST31). That is, the passing mesh confirmation unit 13 detects which mesh of the map data read from the map data storage device 2 the current position indicated by the current position data sent from the position detection device 1 belongs to. Then, it is confirmed whether or not the detected mesh is registered in the passing mesh storage device 3. In this step ST31, if it is determined that the traveling mesh is registered in the passing mesh list, it is recognized that the mesh has passed in the past, and the map data update process ends.

  On the other hand, if it is determined in step ST21 that the traveling mesh is not registered in the passing mesh list, it is recognized that the mesh has not passed in the past, and the traveling mesh is added to the passing mesh list. Registration is performed (step ST32). That is, the passing mesh storage update unit 14 indicates that the confirmation result sent from the passing mesh confirmation unit 13 indicates that the mesh to which the current position belongs (the traveling mesh) is not registered in the passing mesh storage device 3. If it is, the mesh to which the current position belongs is registered in the passing mesh confirmation unit 13.

  Next, update information is acquired and map data is updated (step ST33). The process in step ST33 is the same as the process performed in the navigation device according to the first embodiment shown in the flowchart of FIG. That is, the passing mesh list and version information are transmitted to the server 8 (step ST11). When a response from the server 8 is received, update information is acquired (step ST13), and then the map data is updated. (Step ST14). Thereafter, the map data update process ends.

  As described above, according to the navigation device of the second embodiment of the present invention, when entering a mesh that has never traveled in the past, the map data of the mesh can be updated to the latest state. As a result, the map data in the range where the user travels can always be kept up-to-date. At this time, since the map data in a range where the user does not travel is regarded as being unnecessary for updating, the map data can be updated in a short time.

Embodiment 3 FIG.
The navigation device according to Embodiment 3 of the present invention allows a user to edit a passing mesh list.

  The configuration of the navigation device according to the third embodiment is the same as the configuration of the navigation device according to the first embodiment shown in FIG. 1 except for the functional configuration of the control device 5. The configuration of the server 8 is the same as the configuration of the server according to the first embodiment shown in FIG. 3, and the operation of the server 8 is the same as the operation of the server according to the first embodiment shown in the flowchart of FIG. The same.

  FIG. 8 is a block diagram showing a functional configuration of control device 5 included in the navigation device according to Embodiment 3 of the present invention. The control device 5 is configured by adding a passing mesh emphasis display unit 15 and a passing mesh editing unit 16 to the control device included in the navigation device according to Embodiment 1 shown in FIG. Below, it demonstrates focusing on the part which is different from Embodiment 1. FIG.

  The passing mesh emphasis display unit 15 reads out map data around the position (current position) indicated by the current position data sent from the position detection device 1 from the map data storage device 2 and divides it into meshes. Among them, display data for emphasizing the mesh registered in the passing mesh storage device 3 by changing the color from another mesh, for example, is generated and sent to the display device 6.

  In response to an instruction from the input device 4, the passing mesh editing unit 16 performs editing such as deleting a mesh registered in the passing mesh storage device 3 or registering a new mesh in the passing mesh storage device 3. More specifically, if the mesh designated by the input device 4 is registered in the passing mesh storage device 3, the mesh is deleted, and if not registered in the passing mesh storage device 3, the mesh is passed through the passing mesh storage device. Register to 3.

  Next, the operation of the navigation device according to the third embodiment of the present invention configured as described above will be described with reference to the flowchart shown in FIG. 9, focusing on the passing mesh editing process for editing the passing mesh list. To do.

  In the passing mesh editing process, first, the meshes registered in the passing mesh list are highlighted (step ST41). That is, the passing mesh emphasis display unit 15 reads out map data around the position indicated by the current position data sent from the position detection device 1 from the map data storage device 2 and divides it into meshes. Display data for emphasizing the mesh registered in the passing mesh storage device 3 is generated and sent to the display device 6. As a result, a map in which the mesh registered in the passing mesh storage device 3 is emphasized is displayed on the display device 6.

  Next, mesh selection is performed (step ST42). That is, the user uses the input device 4 to select a mesh to be edited from the map divided into meshes displayed on the display device 6. The passing mesh editing unit 16 selects one mesh from the meshes displayed on the display device 6 based on the data sent from the input device 4.

  Next, it is checked whether or not the mesh selected in step ST42 is registered in the passing mesh list (step ST43). That is, the passing mesh editing unit 16 refers to the passing mesh storage device 3 and checks whether the mesh selected by the input device 4 is registered in the passing mesh storage device 3.

  If it is determined in step ST43 that the mesh selected by the input device 4 is registered in the passing mesh list, the registration of the selected mesh is deleted from the passing mesh list (step ST44). That is, the passing mesh editing unit 16 deletes the mesh registration instructed from the input device 4 from the passing mesh storage device 3. Thereafter, the passing mesh editing process ends.

  On the other hand, if it is determined in step ST43 that the mesh selected by the input device 4 is not registered in the passing mesh list, the selected mesh is registered in the passing mesh list (step ST45). That is, the passing mesh editing unit 16 registers the mesh instructed from the input device 4 in the passing mesh storage device 3. Thereafter, the passing mesh editing process ends.

  As described above, according to the navigation device according to the third embodiment of the present invention, the user can determine whether to update the map data of a desired mesh by designating the mesh from the input device 4. Therefore, even if the mesh has never entered the past, if there is a high possibility of entering the mesh in the future, the mesh is highly likely to enter by registering the mesh in the passing mesh storage device 3. Can update the map data. Conversely, even if a mesh has entered in the past, if there is a low possibility of entering the mesh in the future, the possibility of entering by deleting the registration of the mesh from the passing mesh storage device 3 Since map data with a low mesh is not updated, the time required for updating can be shortened.

Embodiment 4 FIG.
In the navigation device according to Embodiment 4 of the present invention, the registered location is registered in the passing mesh list.

  The configuration of the navigation device according to the fourth embodiment is the same as the configuration of the navigation device according to the first embodiment shown in FIG. 1 except for the functional configuration of the control device 5. The configuration of the server 8 is the same as the configuration of the server according to the first embodiment shown in FIG. 3, and the operation of the server 8 is the same as the operation of the server according to the first embodiment shown in the flowchart of FIG. The same.

  FIG. 10 is a block diagram showing a functional configuration of control device 5 included in the navigation device according to Embodiment 4 of the present invention. The control device 5 is configured by adding a point registration unit 17 and a registered place presence mesh registration unit 18 to the control device included in the navigation device according to Embodiment 1 shown in FIG. Below, it demonstrates focusing on the part which is different from Embodiment 1. FIG.

  In response to an instruction from the input device 4, the point registration unit 17 uses an arbitrary point on the map created based on the map data read out from the map data storage device 2 as a registration location in its own internal memory (illustrated). Not registered) is registered in the registered place list. The registered location registered in the registered location list is used as, for example, a destination or a transit location when searching for a route. In addition, the point registration unit 17 sends data representing the registered place list to the display device 6. As a result, a registered place list including a list of registered places is displayed on the display device 6. The registered place list held in the point registration unit 17 is referred to by the registered place presence mesh registration unit 18.

  In response to an instruction from the input device 4, the registered location presence mesh registration unit 18 reads the registered location list held in the location registration unit 17, and passes the mesh in which the registered location included in the registered location list exists. Register in the storage device 3.

  Next, the operation of the navigation device configured as described above according to the fourth embodiment of the present invention is illustrated with a focus on registration location existence mesh registration processing for registering meshes where registration locations exist in the passing mesh list. This will be described with reference to the flowchart shown in FIG.

  In the registered place presence mesh registration process, first, it is checked whether or not there is an instruction to register a registered place presence mesh (step ST51). That is, the registered location existence mesh registration unit 18 checks whether or not an instruction to register a mesh in which a registered location exists in the passing mesh list is input from the input device 4. If it is determined in this step ST51 that there is no instruction for registering the registered location existing mesh, the registered location existing mesh registration process is terminated.

  On the other hand, if it is determined in step ST51 that there is an instruction to register a registered location existing mesh, a process of adding a mesh in which the registered location exists to the passing mesh list is performed (step ST52). That is, the registered place presence mesh registration unit 18 reads the registered place list held in the point registration unit 17 and registers the mesh in which the registered place included in the registered place list exists in the passing mesh storage device 3. Thereafter, the registered place presence mesh registration process ends.

  As described above, according to the navigation device in accordance with Embodiment 4 of the present invention, the map data of the mesh including the registered place can be updated, so that the map around the point frequently used by the user is always in the latest state. Can be maintained.

Embodiment 5. FIG.
The navigation device according to Embodiment 5 of the present invention is configured to acquire update information for updating map data from a recording medium.

  FIG. 12 is a block diagram showing a configuration of a navigation device according to Embodiment 5 of the present invention. This navigation device is configured by replacing the communication device 7 of the navigation device according to the first embodiment with a recording medium reading device 9. This navigation device is not connected to the server 8.

  The recording medium reader 9 is composed of, for example, a CD or DVD drive device, and the recording medium reader 9 is loaded with a recording medium 9a such as a CD or DVD on which update information is recorded. The recording medium reading device 9 reads the update information from the loaded recording medium 9 a and sends it to the control device 5.

  FIG. 13 is a block diagram showing a functional configuration of control device 5 included in the navigation device according to Embodiment 5 of the present invention. The control device 5 receives the update information from the recording medium reading device 9 in response to an instruction from the input device 4 while the update information acquisition unit 11 according to the first embodiment acquires the update information from the server 8 at the time of startup. get.

  Specifically, the update information acquisition unit 11 reads the passing mesh list from the passing mesh storage device 3 and reads the version information of the mesh registered in the read passing mesh list from the map data storage device 2. Further, the update information acquisition unit 11 reads the update information of the mesh corresponding to the mesh registered in the passing mesh list read from the passing mesh storage device 3 from the recording medium reading device 9, and is added to the read update information. If the version information is newer than the previously read version information of the map data, the update information read from the recording medium reader 9 is sent to the map data update unit 12.

  Next, the operation of the navigation device according to Embodiment 5 of the present invention configured as described above will be described with reference to the flowchart shown in FIG. 14 with a focus on map data update processing.

  In the map data update process, first, it is checked whether or not there is a map data update request (step ST61). That is, the update information acquisition unit 11 checks whether an instruction to update the map data is input from the input device 4. In this case, for example, the update information acquisition unit 11 can be configured to display an update request button on the screen of the display device 6 and check whether the update request button has been pressed using the input device 4. . If it is determined in step ST61 that there is no map data update request, the map data update process ends.

  On the other hand, if it is determined in step ST61 that there is a map data update request, update information is acquired (step ST62). That is, the update information acquisition unit 11 reads the passing mesh list from the passing mesh storage device 3 and reads the version information of the mesh registered in the read passing mesh list from the map data storage device 2. Further, the update information acquisition unit 11 reads the update information of the mesh corresponding to the mesh registered in the passing mesh list read from the passing mesh storage device 3 from the recording medium reading device 9, and is added to the read update information. If the version information is newer than the previously read version information of the map data, the update information read from the recording medium reader 9 is sent to the map data update unit 12.

  Next, the map data is updated (step ST63). That is, the map data update unit 12 updates the map data stored in the map data storage device 2 for each mesh based on the update information sent from the update information acquisition unit 11. Update of map data is performed by replacing the old map data with new map data using the difference information sent as update information. As a result, the map data stored in the map data storage device 2 is updated to the latest state. Thereafter, the map data update process ends.

  As described above, according to the navigation device according to the third embodiment of the present invention, even in a navigation device that does not include a communication device, the mesh map data that has passed in the past is updated in units of meshes. Can be updated to

  In addition, the navigation apparatus which concerns on Embodiment 1-Embodiment 5 mentioned above can be combined arbitrarily, and another navigation apparatus can also be comprised. In the case of other navigation devices, there is an effect exhibited by each navigation device according to the combination.

It is a block diagram which shows the structure of the navigation apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the functional structure contained in the control apparatus of the navigation apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the server connected to the navigation apparatus which concerns on Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus which concerns on Embodiment 1 of this invention centering on map data update process. It is a flowchart which shows operation | movement of the server connected to the navigation apparatus concerning Embodiment 1 of this invention. It is a block diagram which shows the functional structure of the control apparatus contained in the navigation apparatus which concerns on Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus which concerns on Embodiment 2 of this invention centering on map data update process. It is a block diagram which shows the functional structure of the control apparatus contained in the navigation apparatus concerning Embodiment 3 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus which concerns on Embodiment 3 of this invention centering on a passage mesh edit process. It is a block diagram which shows the functional structure of the control apparatus contained in the navigation apparatus which concerns on Embodiment 4 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus which concerns on Embodiment 4 of this invention centering on a registration place presence mesh registration process. It is a block diagram which shows the structure of the navigation apparatus concerning Embodiment 5 of this invention. It is a block diagram which shows the functional structure of the control apparatus contained in the navigation apparatus which concerns on Embodiment 5 of this invention. It is a flowchart which shows operation | movement of the navigation apparatus which concerns on Embodiment 5 of this invention centering on map data update process.

Explanation of symbols

  1 position detection device, 2 map data storage device, 3 passing mesh storage device, 4 input device, 5 control device, 6 display device, 7 communication device, 8 server, 9 recording medium reading device, 9a recording medium, 11 update information acquisition Unit, 12 map data updating unit, 13 passing mesh confirmation unit, 14 passing mesh storage updating unit, 15 passing mesh highlighting display unit, 16 passing mesh editing unit, 17 point registration unit, 18 registered location existing mesh registration unit, 101 communication device , 102 Map data storage device, 103 control device, 111 version information confirmation unit, 112 difference information generation unit.

Claims (6)

A map data storage device for storing map data divided into meshes;
A passing mesh storage device for registering a mesh that has passed in the past;
An update information acquisition unit for acquiring update information for updating map data corresponding to the mesh registered in the passing mesh storage device;
A navigation device comprising: a map data update unit that updates map data stored in the map data storage device in units of meshes using update information acquired by the update information acquisition unit. A position detection device for detecting the current position;
A passing mesh checking unit for checking whether or not a mesh including the current position detected by the position detecting device is registered in the passing mesh storage device;
When it is confirmed that the mesh including the current position detected by the position detection device is not registered in the passage mesh storage device, the passage mesh confirmation unit registers the mesh in the passage mesh storage device. The navigation apparatus according to claim 1, further comprising a mesh storage update unit. A display device for displaying a map;
A passing mesh emphasis display unit that generates a map divided into meshes based on the map data read from the map data storage device and emphasizes a portion corresponding to the mesh registered in the passage mesh storage device and displays the map on the display device When,
An input device for selecting one of the meshes displayed on the display device;
Registration of the mesh selected by the input device is deleted from the passing mesh storage device, or the mesh selected by the input device is newly registered in the passing mesh storage device. The navigation apparatus according to claim 1, further comprising a passage mesh editing unit that edits contents. An input device for inputting instructions;
A point registration unit for registering a point corresponding to an instruction from the input device as a registration place;
The registration location existence mesh registration part which registers the mesh in which the registration place registered by the said point registration part exists according to the instruction | indication from the said input device to a passage mesh memory | storage device is provided. The navigation device described. It has a communication device that communicates with an external server,
The navigation apparatus according to claim 1, wherein the update information acquisition unit acquires update information from an external server via the communication apparatus. A recording medium reader for reading the update information from the recording medium storing the update information;
The navigation apparatus according to claim 1, wherein the update information acquisition unit acquires update information read from a recording medium by the recording medium reader.

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