Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
  • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
  • G01C21/38—Electronic maps specially adapted for navigation; Updating thereof
  • G01C21/3804—Creation or updating of map data
  • G01C21/3859—Differential updating map data

Definitions

• the present invention relates to a navigation apparatus that performs various types of guidance using map information, and more particularly to a technique for updating stored map information using map update information.
• the current position of the vehicle is detected by a GPS (Global Positioning System), and the traveling direction of the vehicle is detected by a gyro sensor, and map data around the current position of the vehicle is stored in a storage medium.
• GPS Global Positioning System
• a gyro sensor gyro sensor
• map data around the current position of the vehicle is stored in a storage medium.
• a navigation device that reads out and forms a map and displays it on a display screen and displays the current position and traveling direction of the vehicle on this map is known.
• map data stored in a hard disk device (hereinafter referred to as “H DD (Hard Disk Drive)”) is transferred to a DVD (Digital Versatile Disk) drive.
• DVD-ROM Digital Versatile Disk
• a navigation device for updating using map update data stored in a DVD-ROM DVD-Read Only Memory
• the navigation device first, the map data read from the DVD-ROM is written to the HDD. After that, the navigation device executes various processes by reading map data from the HDD at high speed and writing predetermined data to the HDD. Therefore, the time required for map display and route search can be shortened compared to the case where DVD-ROM power map data is directly read and processed.
• map data read from the DVD-ROM can be freely written to the HDD, so that one DVD-ROM map data is illegally stored in many HDDs. Copying can also be performed. Therefore, a navigation device has been developed that prevents unauthorized use of map data copied (see, for example, Patent Document 1).
• the navigation device includes a first data recording unit for setting a first storage medium (specifically, a DVD-ROM storing map update information), and a second storage medium (specifically In Is a second data recording unit for setting the HDD (which stores map data), data determination processing means for determining whether or not there is data in the first storage medium, and data stored in the first storage medium.
• data selection processing means for selecting one of the data in the first and second storage media and stopping the data selection when there is no data in the first storage medium. According to this navigation device, if there is no data in the first storage medium, the selection of data is stopped, so that illegally copied data cannot be used.
• Patent Document 1 Japanese Unexamined Patent Publication No. 2003-216504
• the user can It cannot be determined whether the cause is due to the failure of the navigation device or due to other causes.
• the present invention has been made to solve the above-described problem, and allows the user to infer that the suppression of information provided to the user is caused by unauthorized use of map data. It is an object to provide a navigation device that is superior in use.
• the navigation device includes a map information storage means for storing map information and a storage medium storing map update information for updating the map information.
• An attachment detection means for detecting that a storage medium is attached to the drive means; a map information ID attached to the map information stored in the map information storage means; and a storage medium attached to the storage medium drive means. Check if the map information ID attached to the stored map update information matches.
• map information storage means When it is detected by the map information ID matching means and the attachment detection means that the map information ID matching means determines that the map information ID has been met.
• the map information selected by the map information selection control means and the map information selection control means for selecting a part of the map information stored in the map information storage means.
• Navigation information calculation means for generating navigation information by performing a predetermined calculation based on the information, and navigation information output means for outputting the navigation information generated by the navigation information calculation means.
• the navigation device is a storage medium drive to which a map information storage means for storing map information and a storage medium storing map update information for updating the map information are mounted.
• Map detection information that is attached to the map information stored in the map information storage means, and map update information that is stored in the storage medium that is attached to the storage medium driving means.
• the map information ID matching means for checking the map information ID attached to the label to determine whether or not they match, and that the wearing detection means detects that the map information ID is worn, and the map information ID matching is performed. If the fact that match the map information ID gar is determined by the stage, to select all of the operation items to implement all the functions which the Nabigeshiyon device has, it so
• the navigation item is generated by executing the calculation item selection control means for selecting some calculation items for realizing some functions and the calculation item selected by the calculation item selection control means.
• Navigation information calculating means for performing navigation information output means for outputting the navigation information generated by the navigation information calculating means.
• the storage medium storing the map update information is attached to the storage medium driving means and stored in the attached storage medium! As long as the map information ID attached to the information does not match the map information ID attached to the map information stored in the map information storage means, all the map information is stored in the navigation information. Since the information is not sent to the information calculation means, the navigation information calculation means does not output a part of the navigation information that the navigation device should originally output. For this reason, the convenience that the user expects from the navigation device cannot be enjoyed. On the other hand, since some map information is sent to the navigation information calculation means, the navigation information calculation means outputs a part of the navigation information that the navigation device should output. Therefore, the user can infer that the lack of navigation information is due to incorrect use of the map data.
• the map update information is stored in the storage medium driving means and stored in the storage medium in which the storage medium storing the map update information is stored.
• the computation items executed by the navigation device are limited.
• the navigation information calculation means does not output a part of the navigation information that should be output by the navigation device. For this reason, the convenience that the user expects from the navigation device cannot be enjoyed.
• the navigation information calculation means outputs a part of the navigation information that the navigation device should originally output. Therefore, the user can infer that the lack of navigation information is due to unauthorized use of map data.
• FIG. 1 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 1 of the present invention.
• FIG. 2 is a block diagram showing a detailed configuration of the map information selection control means shown in FIG.
• FIG. 3 is a flowchart showing an outline of a map information update process in the navigation device according to the first embodiment of the present invention.
• FIG. 4 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 2 of the present invention.
• FIG. 5 is a block diagram showing a detailed configuration of calculation item selection control means and navigation information calculation means shown in FIG. 4.
• FIG. 6 is a flowchart showing an outline of map information update processing in the navigation device according to Embodiment 2 of the present invention.
• FIG. 7 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 3 of the present invention.
• FIG. 8 is a block diagram showing a detailed configuration of calculation item selection control means shown in FIG.
• FIG. 9 is a diagram for explaining the operation of the calculation item selection control means shown in FIG. 8 when calculation items are not limited!
• FIG. 10 is a diagram for explaining the operation of the computation item selection control means shown in FIG. 8 when computation items are restricted.
• FIG. 11 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 4 of the present invention.
• FIG. 12 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 5 of the present invention.
• FIG. 13 is a flowchart showing an outline of map information update processing in the navigation device according to Embodiment 5 of the present invention.
• FIG. 14 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 6 of the present invention.
• FIG. 15 is a flowchart showing an outline of a map information update process in the navigation device according to the sixth embodiment of the present invention.
• FIG. 1 is a block diagram showing a configuration of a navigation apparatus according to Embodiment 1 of the present invention.
• This navigation device includes a map information storage means 11, a storage medium drive means 12, a map information update means 13, a mounting detection means 14, a map information ID collation means 15, a map information selection control means 16, a navigation information calculation means 17 And navigation information output means 18.
• the map information storage means 11 is configured, for example, as an HDD, and stores map information including map data.
• the map information stored in the map information storage means 11 is updated by the map information update means 13.
• the map information stored in the map information storage means 11 is referred to by the map information selection control means 16.
• the map information stored in the map information storage unit 11 includes a map information ID attached to the map information.
• the map information ID included in this map information is sent to the map information ID matching means 15.
• the map information storage means 11 is not limited to an HDD, and may be configured as a storage medium capable of relatively high speed access such as a semiconductor memory.
• the storage medium drive means 12 is configured, for example, as a DVD drive, and is a DVD-ROM (hereinafter simply referred to as "DVD") that is a storage medium storing map update information for updating map information. Can be removed. This DVD is used to update the map data. There are cases where the updated map data itself is stored on this DVD for updating map data, and there are cases where difference data for updating map data is stored.
• the storage medium driving unit 12 sends a signal indicating whether or not the storage medium is mounted to the mounting detection unit 14. Further, the storage medium driving means 12 sends the map information ID stored in the attached storage medium to the map information ID collating means 15.
• the storage medium drive means 12 is not limited to a DVD drive, and a drive device that drives various removable storage media can be used.
• the map information update means 13 stores the map information stored in the map information storage means 11 using the map update information stored in the storage medium attached to the storage medium drive means 12. Update. For example, the map data updating DVD power map information, which is a storage medium attached to the storage medium driving means 12, is read and transferred to the HDD serving as the map information storage means 11. As a result, the map information stored in the HDD is updated (upgraded).
• the attachment detection means 14 detects whether or not a storage medium is attached to the storage medium driving means 12 based on a signal sent from the storage medium driving means 12 that indicates the presence or absence of attachment. For example, the mounting detection means 14 detects whether a DVD for updating map data is inserted in the DVD drive. The detection result in the wearing detection means 14 is the ground signal as a wearing signal. It is sent to the figure information selection control means 16. Specifically, when the storage medium drive unit 12 is loaded with a storage medium, “1” is input to the map information selection control unit 16 when the storage medium is set to “1”. Sent.
• the map information ID checking means 15 compares the map information ID stored in the storage medium attached to the storage medium driving means 12 with the map information ID stored in the map information storage means 11. To do.
• As the map information ID for example, version data indicating the version of the map data is used.
• the map information ID collating means 15 collates the version data stored in the map data updating DVD inserted in the DVD drive and the version data stored in the HDD.
• the collation result by the map information ID collation means 15 is sent to the map information selection control means 16 as a coincidence signal. Specifically, “1” is stored if the version data stored on the DVD and the version data stored on the HDD match the version data, and “0” is displayed if they do not match. To the map information selection control means 16.
• the map information selection control means 16 selects the map information read from the map information storage means 11 based on the attachment signal from the attachment detection means 14 and the coincidence signal from the map information ID matching means 15. Send to navigation information calculation means 17. That is, the map information selection control means 16 has a storage medium attached to the storage medium drive means 12 and is stored in the map information storage means 11!, And is attached to the map information ID and the storage medium drive means 12. When the condition that the map information ID stored in the stored storage medium matches is determined, it is determined that the method is a legitimate use method, and all the map information read from the map information storage means 11 is navigated. Send to information calculation means 17. On the other hand, if the above conditions are not satisfied, the map information selection control means 16 determines that the map information selection means 16 is not a valid method of use, and the map information storage means 11 part of the read map information to the navigation information calculation means 17 send.
• map data update DVD when a map data update DVD is inserted in the DVD drive, and the version data stored in the DVD and the version data stored in the HDD match, It is judged that the DVD for updating map data is legitimate, and all map information can be used.
• a DVD for updating map data is not inserted in the DVD drive, or a DVD for updating map data is inserted in the DVD drive. If the version of the map data stored on the DVD is older than the version of the map data stored on the HDD, it is recognized that the map data update DVD has been transferred to another person. It is determined that the DVD for updating map data is illegally used, and only some map information can be used.
• the map information stored in the map information storage means 11 is composed of a plurality of information items.
• the plurality of information items include “road name”, “facility name”, “coordinate information associating each point on the map with position information obtained by position detecting means”, and the like.
• the map information selection control means 16 sends all information items read from the map information storage means 11 to the navigation information calculation means 17 when the above-described conditions are satisfied, and when the above-mentioned conditions are not satisfied, For example, the coordinate information read from the map information storage means 11 is inhibited from being sent to the navigation information calculation means 17, and only the road name and facility name are sent to the navigation information calculation means 17.
• FIG. 2 is a block diagram showing a detailed configuration of the map information selection control means 16.
• the map information selection control means 16 includes a map data input processing unit 31, an input register 32, an AND circuit 33, a gate 34, a gate 35, an output register 36, and a map data output processing unit 37.
• the map data input processing unit 31 distributes the map information read from the map information storage means 11 for each information item A to D and sends it to the input register 32.
• the input register 32 stores information items A to D distributed by the map data input processing unit 31. Information item A stored in input register 32 is sent to gate 34, information item B is sent to gate 35, and information items C and D are sent to output register 36.
• the AND circuit 33 calculates the logical product of the mounting signal sent from the mounting detection means 14 and the coincidence signal sent from the map information ID matching unit 15, and sends the result to the gate 34 and the gate 35. .
• the mounting signal indicates “1” and the coincidence signal indicates “1”, and the AND circuit 33 outputs “1” to the gate 34 and the gate 35.
• the gate 34 passes through the information item A stored in the input register 32 and sends it to the output register 36, and "0" is sent. If it does, send zero to output register 36.
• the gate 35 passes the information item B stored in the input register 32 and outputs it. If it is sent to register 36 and “0” is sent, zero is sent to output register 36. Therefore, if the above condition is satisfied, all of the information items A to D are sent to the output register 36. If the condition is not satisfied, only the information items C and D are sent to the output register 36 and output. Zero is set in the portion of register 36 corresponding to information items A and B.
• the output register 36 includes the information item A or the gate sent from the gate 34, the information item B or zero sent from the gate 35, and the information item sent from the input register 32.
• the contents stored in the output register 36 are sent to the map data output processing unit 37.
• the map data output processing unit 37 reads the information item from the output register 36 and sends it to the navigation information computing means 17.
• the map information selection control means 16 is configured to limit the information items of the map information read from the map information storage means 11 and send the information to the navigation information calculation means 17. It can also be configured such that the parts are restricted and sent to the navigation information calculation means 17. For example, the map information of country A can be sent to the navigation information calculation means 17, but the map information of country B can be sent to the navigation information calculation means 17. Or, it can be configured by combining information items and geographical parts to limit.
• map information selection control means 16 can also be configured by software that operates on the force processor described above when the map information selection process is configured by software. An example of processing in this case will be described later with reference to FIG.
• the navigation information calculation means 17 performs a predetermined calculation based on the map information sent from the map information selection control means 16 to generate navigation information.
• the information input to the navigation device includes location information from GPS, speed information from the vehicle speed sensor, direction information of gyro sensor force, and destination setting information manually operated by the user. It is.
• the navigation information calculation means 17 generates navigation information for outputting a map, a route, a vehicle position, or a driving guide in the navigation information output means 18 by performing a predetermined calculation in accordance with these pieces of information. To do.
• the navigation information output means 18 includes, for example, a display device and an audio output device. Based on the navigation information sent from the navigation information calculation means 17, the map, route, vehicle position, etc. are displayed on the screen of the display device, and the driving guide is output by voice output device power voice. .
• step ST10 When updating the map information in this navigation device, first, it is checked whether or not the storage medium storing the map update information is attached to the storage medium driving means 12 (step ST10). That is, the map information selection control means 16 checks whether or not the wearing signal to which the wearing detection means 14 force is sent indicates “1”. If it is determined in this step ST10 that it is attached, then it is determined whether or not the map information ID included in the map update information storage medium matches the map information ID included in the map information storage means 11. Checked (step ST11). That is, the map information selection control means 16 checks whether or not the coincidence signal power S “l” sent from the map information ID matching means 15 is indicated.
• step ST12 If it is determined in step ST11 that all match, all the map information is read (step ST12). That is, the map information selection control means 16 sends all information items constituting the map information read from the map information storage means 11 to the navigation information calculation means 17. If it is determined in step ST10 that it is not attached, or if it is determined in step ST11 that they do not match, the reading contents of the map information are restricted (step ST13). That is, the map information selection control means 16 sends only the information items C and D to the navigation information calculation means 17 among the information items constituting the map information read from the map information storage means 11.
• the storage medium storing the map update information is attached to the storage medium driving means 12 and the attached storage is stored.
• the map information ID included in the map update information stored in the medium and the map information ID included in the map information stored in the map information storage means 11 do not match, the map used to generate the navigation information Information items of information are restricted. as a result,
• the navigation information calculation means 17 outputs only predetermined information out of the navigation information that should be output by the navigation device. For this reason, users cannot enjoy the convenience expected of navigation devices!
• the user can store the map information ID that matches the map information ID stored in the map information storage means 11.
• the medium needs to be attached to the storage medium driving means 12. This prevents unauthorized use (update) of map information.
• the map data update DVD is always inserted in the DVD drive, and the map data version stored on the DVD matches the map data version stored on the HDD. Only in this case will the map data be used properly, so that unauthorized use (updating) of the map data can be prevented.
• map data stored in the HDDs of multiple navigation devices is updated using a single map data update DVD obtained by the user paying the usage fee, this is an illegal use. It corresponds to (update).
• the map data update DVD since there is only one map data update DVD, the map data update DVD is not inserted except for one of the navigation devices in which the map data has been updated. Become. In other words, only one navigation device can be equipped with a map data update DVD that has a version that matches the version of the updated map data stored in the HDD.
• the map data version stored on the map data update DVD is stored in the HDD, such as by inserting an old map data update DVD! It is older than the map data version! Arise.
• the navigation apparatus regards the map data update DVD as being illegally used, and restricts the read contents of the map data.
• the content of map data to be read is limited, assuming that the coordinate information in the map data cannot be used, the navigation device cannot determine where the vehicle position should be displayed on the map. So it can't be displayed on the screen. If the vehicle position is not displayed, the navigation device cannot demonstrate its expected convenience. Therefore, such a penalty is imposed when the DVD for updating map data is illegally used. As a result, the DVD for updating map data can be protected from unauthorized use.
• the navigation information calculation means 17 includes the navigation device. Outputs only certain information among the navigation information that should be output. In this case, since the use of all information items is not suppressed, the output navigation information also remains. Accordingly, the storage medium storing the map update information is not attached, or even if attached, the map information ID stored in the storage medium and the map information ID stored in the map information storage means 11 Even if they do not match, the navigation information provided to the user by the navigation device remains, so the user is responsible for the lack of information to be output due to invalid map data. It can be inferred that this is due to the update.
• the navigation device cannot display the vehicle position on the screen.
• the coordinate information in the map data is referenced to correlate the received GPS content with the location on the map, so only the map is displayed on the screen even if the coordinate information is not referenced. Can do. Therefore, if a DVD for updating map data is inserted !, is missing, or is old, or a DVD for updating map data is inserted, the navigation device is not provided with its original convenience. A part of the information provided by can be output.
• FIG. 4 is a block diagram showing the configuration of the navigation apparatus according to Embodiment 2 of the present invention.
• This navigation apparatus includes a map information storage means 11, a storage medium drive means 12, a map information update means 13, a mounting detection means 14, a map information ID collation means 15, a calculation item selection control means 19, and a navigation information calculation means 20 And navigation information output means 18.
• the map information selection control means 16 in the first embodiment is replaced with the calculation item selection control means 19, and the navigation information calculation means 17 is the navigation information calculation. It is constructed by replacing the means 20. Less than The following description will focus on the differences from the navigation device according to the first embodiment.
• the calculation item selection control means 19 determines a calculation item to be executed based on the mounting signal from the mounting detection means 14 and the coincidence signal from the map information ID matching means 15. That is, the calculation item selection control means 19 has a storage medium attached to the storage medium driving means 12 and the map information ID and the storage medium drive included in the map information stored in the map information storage means 11. When the condition that the map information ID included in the map update information stored in the storage medium attached to the means 12 matches is satisfied, it is determined that the use method is valid, and the navigation device is The navigation information calculation means 20 is instructed to execute all calculation items for realizing all the functions possessed. On the other hand, if the above condition is not satisfied, the calculation item selection control means 19 determines that the method is not a valid method of use and performs navigation so as to execute some calculation items for realizing some functions. The information calculation means 20 is instructed.
• the navigation information calculation means 20 includes calculation items 1, calculation items 1 and calculation items for executing n (n is a positive integer) calculation item 1, calculation item 2, ..., calculation item n, respectively.
• Arithmetic means, ⁇ , Calculation items n Computational means are provided. For example, the following calculations can be assigned to each calculation item.
• the navigation information calculation means 20 executes calculation items in accordance with instructions from the calculation item selection control means 19.
• the execution result in the navigation information calculation means 20 is sent to the navigation information output means 18 as navigation information.
• the navigation information corresponding to the calculation item for which the calculation has been performed is sent to the navigation information output means 18, and the navigation information corresponding to the calculation item for which the calculation has not been performed is the navigation information output means. Not sent to 18.
• FIG. 5 is a block diagram showing a detailed configuration of the calculation item selection control means 19 and the navigation information calculation means 20. Note that FIG. 5 shows a configuration in which four calculation items are calculated to simplify the description.
• Calculation item selection control means 19 includes AND circuit 41 and first to fourth calculation starting devices 19 to
• An activation signal is generated and sent to the navigation information calculation means 20.
• the third computation starter 19 receives “1” from the AND circuit 41,
• An activation signal is generated and sent to the navigation information calculation means 20, and if “0” is input, no activation signal is generated.
• the fourth computation starter generates a start signal when “1” is input from the AND circuit 41 and sends it to the navigation information calculation means 20, and generates a start signal when “0” is input. That's it!
• the AND circuit 41 performs a logical product of the mounting signal sent from the mounting detection means 14 and the coincidence signal sent from the map information ID matching unit 15, and the result is output to the third arithmetic activation device 19 Yo
• the storage medium drive means 12 is equipped with a storage medium, the map information ID stored in the map information storage means 11 and the storage medium attached to the storage medium drive means 12 Since the condition that the stored map information ID matches is satisfied, the AND circuit 41 sends “1” to the third calculation starting device 19 and the fourth calculation starting device 19.
• the calculation item selection control means 19 can also be realized by software operating on the force processor described in the case where the processing for selecting the calculation item is configured by hardware. An example of processing in this case will be described later with reference to FIG.
• the navigation information calculation means 20 includes calculation item 1 calculation means 20 and calculation item 2 calculation means.
• Calculation item 1 calculation means 20 to calculation item 4 calculation means 20 is calculated item selection control means 19
• the map information is stored in the map information storage means 11 and the calculation is executed.
• the result is sent to the navigation information output means 18 as navigation information.
• step ST10 When updating the map information in this navigation device, first, it is checked whether or not the storage medium storing the map update information is attached to the storage medium driving means 12 (step ST10). That is, the calculation item selection control means 19 checks whether or not the attachment signal to which the attachment detection means 14 force is sent indicates “1”. If it is determined in this step ST10 that it is attached, then it is determined whether or not the map information ID included in the map update information storage medium matches the map information ID included in the map information storage means 11. Checked (step ST11). That is, the calculation item selection control means 19 checks whether or not the coincidence signal power S “l” sent from the map information ID matching means 15 is indicated.
• step ST20 If it is determined in step ST11 that they match, all the calculation items are calculated (step ST20). That is, the calculation item selection control means 19 instructs the navigation information calculation means 20 to execute all the calculation items A to D. If it is determined in step ST10 that it is not attached, or if it is determined in step ST11 that they do not match, the calculation items to be calculated are limited (step ST21). That is, the calculation item selection control means 19 instructs the navigation information calculation means 20 to execute some calculation items C and D.
• the storage medium storing the map update information is attached to the storage medium driving means 12, and the attached storage is stored.
• the calculation items executed in the navigation device are limited.
• the navigation information calculation means 20 outputs only predetermined information among the navigation information that the navigation device should originally output. For this reason, the user cannot enjoy the convenience expected from the navigation device. Therefore, in order not to limit the convenience inherent in the navigation device, the user must store a storage medium in which a map information ID that matches the map information ID stored in the map information storage means 11 is stored. Therefore, it is necessary to attach the storage medium driving means 12. This prevents unauthorized use (update) of map information.
• the computation item computation is restricted by the computation item selection control means 19, so that the navigation information computation means
• the storage medium storing the map update information is not attached, or the map information ID stored in the storage medium and the map information ID stored in the map information storage means 11 are attached even if attached. Even if they do not match, the navigation information provided to the user by the navigation device remains, so the user
• “own vehicle position calculation” and “guidance information calculation” are assumed as limited calculation items.
• the navigation apparatus power is not output for the information of “own vehicle position” and “guidance information”
• the user cannot enjoy the convenience expected of the navigation apparatus.
• other calculation items are calculated and the calculation results are output. For example, it is possible to display a map on the screen and display facility information. That is, the information that the navigation device provides to the user remains.
• the map data when it is determined that the map data has been updated incorrectly, that is, the map as a storage medium storing map update information If a data update DVD has been inserted, or if an old or map data update DVD has been inserted, a map and facility information (facility type and detailed description of the facility) are displayed on the screen. On the other hand, the function of displaying the vehicle position on the map and the function of calculating the route from the vehicle position to the destination can be suppressed. According to this configuration, the map and facility information are displayed, but the driver cannot be guided to the destination, so the convenience as a navigation device is not provided. I can't.
• old map data map information
• the geographical conditions indicated by the map data and the presence / absence of facilities such as commercial facilities and public facilities that can be set in the navigation system as the destination of operation change year by year as new roads are built or new facilities are opened.
• the old map data is stored in the navigation device, there is a discrepancy between the actual geographical condition and aspect of the facility and the information provided by the navigation device, and the user feels inconvenient.
• the navigation device user power Other power Borrow a new map data update DVD, and use this DVD to update the HD D map data as the map information storage means 11 of the navigation device Then, assume that a new DVD for updating map data is returned. In this case, after the navigation device user returns the new DVD for updating map data, the navigation device cannot be inserted into the navigation device. It operates as described above.
• the navigation device does not guide the driving means to the destination, but the displayed map information and facility information are information updated by a new DVD for updating map data. Therefore, if the user of the navigation device pays a regular usage fee and purchases a DVD for updating the Xinjiang map data, he / she feels like before! It can be confirmed before purchasing a new DVD for updating map data that the gap between the geographical conditions and facility information stored in the map data will be resolved. That is, according to this navigation device, before purchasing a map data update DVD, the user can be accurately and easily informed of the degree of improvement in convenience after purchase.
• FIG. 7 is a block diagram showing the configuration of the navigation device according to the third embodiment of the present invention.
• This navigation apparatus includes a map information storage means 11, a first storage medium drive means 12, a second storage medium drive means 12, a third storage medium drive means 12, and a map information update means.
• mounting detection means 14, map information ID matching means 15, calculation item selection control means 19, navigation information calculation means 20, and navigation information output means 18.
• the storage medium driving means 12 in the second embodiment has three storage medium driving means, that is, the first storage medium driving means 12 and the second storage.
• the medium drive means 12 and the third storage medium drive means 12 are replaced with the map.
• An information update history storage means 21 is added to the configuration.
• the number of storage medium driving means is set to “3” for simplicity of explanation, but in the present invention, the number of storage medium driving means is arbitrary.
• the configurations and operations of the map information update means 13, the attachment detection means 14, the map information ID matching means 15 and the calculation item selection control means 19 are different from those of the second embodiment. In the following, the description will focus on the differences from the navigation device according to the second embodiment.
• the map information updating means 13 is a memory attached to the first to third storage medium driving means 12-12.
• the map information stored in the map information storage means 11 is updated using the map update information stored in the storage medium. Then, after updating the map information stored in the map information storage means 11, the map information ID of the updated map information is sent to the map information update history storage means 21.
• the map information update history storage means 21 has three map information ID storage areas 1 to 3, and updates the map information three times from the most recent update of the map information performed in the past. Then, the map information ID obtained from the map information updating means 13 is stored. Specifically, map information IDs are stored in the three map information ID storage areas 1 to 3 as follows.
• map information update history storage means 21 when the map information has never been updated (hereinafter, the map information ID is stored).
• the state is indicated as “None”.
• contents of the map information update history storage means 21 are updated as follows.
• the contents of the map information update history storage means 21 are updated as follows. .
• the map information update history storage means 21 The contents are updated as follows. In this case, since there are three map information ID storage areas and the number of updates is five, the oldest two map information IDs are discarded. Map information ID storage area 1 ⁇ ID5
• the attachment detection means 14 is attached from the first to third storage medium driving means 12-12.
• the first to third storage medium driving means 12 to 12 are loaded with a storage medium based on a signal indicating the presence or absence of
• the detection result in the attachment detection means 14 is sent to the calculation item selection control means 19 as an attachment signal.
• the map information ID collating means 15 is connected to each of the storage media attached to the first to third storage medium driving means 12 to 12.
• Figure information ID is detected.
• the map information ID detected by the map information ID matching means 15 is sent to the calculation item selection control means 19.
• the calculation item selection control means 19 includes a wearing signal and a map sent from the wearing detection means 14. Based on the coincidence signal sent from the information ID collating means 15 and the map information update history (map information ID) sent from the map information update history storage means 21, a calculation item to be executed is determined.
• FIG. 8 is a block diagram showing a detailed configuration of the calculation item selection control means 19.
• This calculation item selection control means 19 includes an input register 51, a sort processing unit 52, a sort register 53, a comparison unit 54-56, a 2-input AND circuit 57-59, an OR circuit 60-62, and a 3-input It is composed of AN D circuit 64, comparison unit 64 to 66, and first to fourth calculation starting devices 19 to 19
• the input register 51 includes a mounting signal from the first storage medium driving means 12 and the first storage medium drive.
• the map information ID stored in the storage medium attached to the moving means 12 is paired with
• the map information ID stored in the medium is paired with the third storage medium drive means 12
• the rearrangement processing unit 52 rearranges the three sets of data sent from the input register 51 according to the following rules. First, a pair having “1” as a wearing signal is classified as an upper side and a pair having “0” is classified as a lower side. Next, for each of the upper side and the lower side, the map information ID is advanced and rearranged so that (the newest! /, Map information ID) becomes the upper side. The data rearranged by the rearrangement processing unit 52 is sent to the rearrangement register 53.
• the rearrangement register 53 holds the data sent from the rearrangement processing unit 52. Of the data held in the rearrangement register 53, the mounting signal included in the uppermost pair is sent to the AND circuit 57, and the map information ID is sent to the comparison unit 54. Similarly, the wearing signal included in the middle pair is sent to the AND circuit 58, and the map information ID is sent to the comparison unit 55. Similarly, the mounting signals included in the lowest pair are sent to the AND circuit 59, and the map information ID is sent to the comparison unit 56.
• the comparison unit 54 stores the map information ID included in the top pair sent from the rearrangement register 53 and the map information ID storage area 1 of the map information update history storage means 21. The map information ID is compared, and if they match, “1” is output, and if they do not match, “0” is output and sent to the AND circuit 57.
• the comparison unit 55 stores the map information ID included in the middle pair sent from the sorting register 53 and the map information ID storage area 2 of the map information update history storage means 21 and stores the map information ID. The information IDs are compared, and if they match, “1” is output, and if they do not match, “0” is output and sent to the AND circuit 58.
• the comparison unit 56 maps information stored in the map information ID storage area 3 of the map information ID and map information update history storage means 21 included in the lowest pair sent from the sorting register 53. The IDs are compared, and if they match, “1” is output, and if they do not match, “0” is output and sent to the AND circuit 59.
• the AND circuit 57 calculates the logical product of the mounting signal included in the uppermost pair sent from the rearrangement register 53 and the output of the comparison unit 54, and sends the result to the OR circuit 60. Therefore, the AND circuit 57 has the storage medium used in the update of the newest map information installed in any of the first to third storage medium driving means 12 to 12 and is stored in the storage medium.
• the AND circuit 58 takes a logical product of the mounting signal included in the middle pair sent from the rearrangement register 53 and the output of the comparison unit 55, and sends the result to the OR circuit 61. . Therefore, the AND circuit 58 has the storage medium used in the second update of the new map information installed in any one of the first to third storage medium driving means 12 to 12, and is stored in the storage medium.
• the AND circuit 59 takes a logical product of the mounting signal included in the lowest pair sent from the rearrangement register 53 and the output of the comparison unit 56, and sends the result to the OR circuit 62. Therefore, in the AND circuit 59, the storage medium used for the update of the third newest (oldest) map information is attached to any one of the first to third storage medium driving means 12 to 12, and , That
• the comparison unit 64 stores the map information ID stored in the map information ID storage area 1 of the map information update history storage means 21, and stores nothing in the map information ID storage area. The data None is compared. If they match, “1” is sent to the OR circuit 60, and if they do not match, “0” is sent to the OR circuit 60.
• the comparison unit 65 compares the map information ID stored in the map information update history storage means 21 map information ID storage area 2 with the data None, and if they match, sends “1” to the OR circuit 61, Otherwise, send “0” to OR circuit 61.
• the comparison unit 66 compares the map information ID stored in the map information ID storage area 3 of the map information update history storage means 21 with the data None, and if they match, “1” is sent to the OR circuit 62. If they do not match, “0” is sent to the OR circuit 62.
• the OR circuit 60 calculates the logical sum of the output of the AND circuit 57 and the output of the comparison unit 64, and sends the result to the AND circuit 63.
• the OR circuit 61 calculates the logical sum of the output of the AND circuit 58 and the output of the comparison unit 65 and sends the result to the AND circuit 63.
• the OR circuit 62 calculates the logical sum of the output of the AND circuit 59 and the output of the comparison unit 66 and sends the result to the AND circuit 63.
• the AND circuit 63 calculates the logical product of the outputs of the OR circuit 60, the OR circuit 61, and the OR circuit 62, and sends the result to the third operation starter 19 and the fourth operation starter 19.
• the first to fourth calculation starting devices 19 to 19 are the same as those described above.
• the map information ID storage areas 1 to 3 of the map information update history storage means 21 are set as follows. Yes.
• All of 19 generate a start signal, and calculation information 1 of the navigation information calculation means 20
• Calculation means 20 calculation item 2 Calculation means 20, calculation item 3 Calculation means 20 and calculation item 4 Start the calculation means 20.
• map information ID storage areas 1-3 of the map information update history storage means 21 Is changed as follows.
• the storage medium with map information ID ID5
• the storage medium with map information ID ID4
• FIG. 9 is a diagram showing the state of each part of the calculation item selection control means 19 in an example where the calculation items are not limited.
• FIG. 10 is a diagram showing the state of each part of the calculation item selection control means 19 in an example where calculation items are restricted.
• the storage medium is loaded and the second storage medium driver
• a storage medium storing map information ID ID5 is loaded in step 12 and the third storage medium drive
• map information ID ID5
• ID4 and ID3 storage media should be set, but the first storage medium drive means 12 has the ID
• the comparison unit 56 Since the storage medium 2 is set, the comparison unit 56 outputs “0”, and the comparison unit 66 also outputs “0”. Therefore, the AND circuit 63 outputs “0”, and the third computation starter 19 and the fourth
• the navigation device has the following effects.
• map update information is used illegally as follows.
• user 1 and user 2 have conventional navigation devices, and user 1 has performed the following operations in order (ID1 and ID2 are the new versions of ID2): .
• the calculation items of the navigation information must be installed unless all the corresponding p storage media are installed for the latest p map information updates.
• the navigation device according to the first embodiment is also applicable to the latest update of p map information, as with the navigation device according to the third embodiment. If all the storage media are not installed, it can be configured to limit the reading contents of the map information.
• FIG. 11 is a block diagram showing the configuration of the navigation apparatus according to Embodiment 4 of the present invention.
• This navigation apparatus includes a map information storage means 11, a storage medium drive means 12, a map information update means 13, a mounting detection means 14, a map information ID verification means 15, a map information selection Selection control means 16, navigation information calculation means 17, navigation information output means 18, and sub storage medium drive means 22.
• the sub storage medium driving means 22 is added to the navigation device according to the first embodiment, and the attachment detection means 14 and the map information ID collating means 15
• the configuration and operation are different from those of the first embodiment. In the following, the description will focus on parts that are different from the navigation device according to the first embodiment.
• the navigation device stores map update information in a storage medium attached to the storage medium driving means 12, and a map information ID corresponding to this map update information is provided separately.
• the data is stored in a sub storage medium attached to the sub storage medium driving means 22 provided. That is, in the navigation device according to the above-described first to third embodiments, the map update information and the map information ID are stored in one storage medium, but the navigation device according to the fourth embodiment. Then, these are physically separated and stored.
• the sub storage medium driving means 22 is composed of a drive for driving the sub storage medium, and can attach and detach a flash memory, which is a sub storage medium in which the map information ID is stored.
• the sub storage medium driving unit 22 sends a signal indicating whether or not the sub storage medium is mounted to the mounting detection unit 14.
• the sub storage medium driving means 22 sends the map information ID stored in the attached sub storage medium to the map information ID collating means 15.
• the attachment detection means 14 detects whether or not the sub storage medium is attached to the sub storage medium drive means 22 based on a signal sent from the sub storage medium drive means 22 indicating the presence or absence of the attachment. .
• the detection result in the attachment detection means 14 is sent to the map information selection control means 16 as an attachment signal.
• the map information selection control means is “1” when the sub storage medium is attached to the sub storage medium drive means 22 and “0” is indicated as the attachment signal when the sub storage medium is attached. Sent to 16.
• the map information ID collating means 15 includes a map information ID stored in the sub storage medium attached to the sub storage medium driving means 22 and a map information ID stored in the map information storage means 11. Is matched. The collation result by the map information ID collating means 15 is sent to the map information selection control means 16 as a coincidence signal.
• the attachment detection means 14 indicates the presence or absence of attachment sent from the sub storage medium drive means 22. Based on the signal, it is detected whether or not a sub storage medium is attached to the sub storage medium driving means 22, and the map information ID collating means 15 is stored in the sub storage medium attached to the sub storage medium driving means 22! The operation is the same as that of the navigation device according to the first embodiment except that the map information ID and the map information ID stored in the map information storage means 11 are collated.
• the storage medium driving unit 12 is loaded with a storage medium, and the map information stored in the map information storage unit 11 is updated. Thereafter, the sub storage medium is attached to the sub storage medium driving means 22.
• the navigation device validates all the navigation functions when a sub storage medium is mounted and the map information ID is stored in the map information storage means 11 and matches the map information ID.
• the navigation device has the following effects. That is, in general, navigation devices often share a DVD mechanism with car audio. In other words, only one set of DVD reading mechanism is provided, and music and video are played using this mechanism in normal times. When it becomes necessary to update the map data stored in the HD D, a map data update DVD is inserted to update the map data stored in the HDD. After this update is complete, you can swap DVDs and play music and video again.
• a set of a storage medium storing map update information and a sub storage medium storing map information ID is provided to the user as map update information.
• the sub storage medium is attached to the navigation device, and If the map information ID is stored in the map information storage means 11 and matches the map information ID, the navigation function is enabled. Therefore, music and video can be normally played back, and when updating the map information, the map information update storage medium is inserted and stored in the map information storage means 11 !, the map information is updated, After that, by attaching the sub storage medium to the sub storage medium driving means 22, the updated map information can be used simultaneously with the reproduction of music and video. Therefore, there is no need to provide a new DVD reading mechanism.
• the navigation device according to Embodiment 5 of the present invention is adapted to cope with the case where the map update information is divided and stored in a plurality of storage media in the navigation device according to Embodiment 1. is there.
• Each of the plurality of storage media used in this navigation device is assigned a storage medium ID—1, ID—2,... With serial number power, and one storage medium ID—1 It shall indicate that it is a storage medium for the eyes.
• FIG. 12 is a block diagram showing the configuration of the navigation apparatus according to Embodiment 5 of the present invention.
• This navigation device is configured by adding a storage medium ID detection means 23 to the navigation device according to the first embodiment.
• a description will be given focusing on differences from the navigation device according to the first embodiment.
• the storage medium ID detection unit 23 detects whether or not the storage medium attached to the storage medium driving unit 12 is the first sheet. The detection result in the storage medium ID detection means 23 is sent to the map information selection control means 16 as a recording medium ID signal. Specifically, if the storage medium loaded in the storage medium drive unit 12 is the first sheet, that is, the storage medium with the storage medium ID-1, the “1” force is stored for the second and subsequent sheets. If it is a medium, “0” is sent to the map information selection control means 16 as a storage medium ID signal.
• the map information selection control means 16 is based on the storage medium ID signal from the storage medium ID detection means 23, the attachment signal from the attachment detection means 14, and the coincidence signal from the map information ID verification means 15.
• the map information read from 11 is selected and sent to the navigation information calculation means 17. That is, the map information selection control means 16 has a storage medium attached to the storage medium driving means 12 and is stored in the map information storage means 11.
• the figure information ID and the map information ID stored in the storage medium mounted on the storage medium drive means 12 match, and the storage medium ID signal from the storage medium ID detection means 23 is the first storage medium. If the condition indicating that it is present is established, it is determined that the use method is valid, and all the map information read from the map information storage means 11 is sent to the navigation information calculation means 17.
• the map information selection control means 16 determines that the map information selection means 16 is not a valid usage method, and a part of the map information read from the map information storage means 11 is used as the navigation information calculation means 17. Send to.
• step ST10 When updating the map information in this navigation device, first, it is checked whether or not the storage medium storing the map update information is attached to the storage medium driving means 12 (step ST10). If it is determined in this step ST10 that it is attached, it is checked whether or not the first storage medium is inserted with,, and (step ST30). That is, the map information selection control means 16 checks whether or not the storage medium ID signal power “l” sent from the storage medium ID detection means 23 is indicated. If it is determined in this step ST10 that it is attached, then it is determined whether the map information ID included in the map update information storage medium matches the map information ID included in the map information storage means 11. Checked (step ST11).
• step ST11 If it is determined in step ST11 that all match, all the map information is read (step ST12). If it is determined in step ST10 that it is not attached, or if it is determined in step ST11 that they do not match, the reading contents of the map information are restricted (step ST13).
• a large amount of map update information is stored across a plurality of storage media. Only if the first one of the media is installed in the storage media drive means 12 Since all the functions of the navigation device are validated without restricting the read contents of the figure information, the same effects as those of the first embodiment described above can be obtained.
• the navigation device according to the fifth embodiment is configured such that the storage medium ID detection means 23 is added to the navigation device according to the first embodiment, but according to the second embodiment, A storage medium ID detection means 23 may be added to the navigation device.
• all the functions of the navigation device are effective without restricting the execution of the calculation item only when the first one of the plurality of storage media is attached to the storage medium drive means 12! Therefore, the same effects as those of the first embodiment described above can be obtained.
• the navigation device when any one of the plurality of storage media is attached to the storage medium drive means 12. It can also be configured to enable all of the functions.
• map update information is stored across two DVDs. The first of the two DVDs must be attached to the storage medium drive means 12. In the configuration, the navigation device does not function even if the second DVD is inserted. After updating the map information using the DVD, the operation of inserting the first DVD must be performed. Therefore, the operation is troublesome for the user and an error occurs. This problem can be solved by configuring all the functions of the navigation device to be valid when any one of the two DVDs is loaded in the storage medium drive means 12.
• the navigation device according to Embodiment 6 of the present invention is the navigation device according to Embodiment 1, in which the map update information is divided and stored for each map update information in a specific region in a plurality of storage media. In this way, it is possible to cope with such cases. It is assumed that information representing an applicable map to which the map update information is applied is stored in each of a plurality of storage media used in the navigation device.
• FIG. 14 is a block diagram showing a configuration of the navigation apparatus according to Embodiment 6 of the present invention.
• This navigation device is suitable for the navigation device according to the first embodiment.
• the application area setting means 24, the application area storage means 25, and the application area detection means 26 are added. The following description will focus on the parts that are different from the navigation device according to the first embodiment.
• the application area setting means 24 sets an application area in which the navigation device is used from the outside with respect to the navigation device.
• the application area set by the application area setting means 24 is sent to the application area storage means 25.
• the application area storage means 25 stores the application area sent from the application area setting means 24.
• the application area stored in the application area storage means 25 is read out by the application area detection means 26.
• the application area detection means 26 determines whether or not the application area stored in the storage medium attached to the storage medium driving means 12 matches the application area stored in the application area storage means 25. If they match, “1” is sent to the map information selection control means 16 as an applicable region matching signal.
• step ST10 When updating the map information in this navigation device, first, it is checked whether or not the storage medium storing the map update information is attached to the storage medium driving means 12 (step ST10). If it is determined in this step ST10 that it is worn, it is then checked whether the application areas match (step ST40). In other words, the application area detection unit 26 determines whether the application area indicated by the storage medium attached to the storage medium driving unit 12 matches the application area stored in the application area storage unit 25, that is, the application area match. Check if the signal shows “1”. If it is determined in this step ST10 that the application areas match, then it is determined whether the map information ID included in the map update information storage medium and the map information ID included in the map information storage means 11 match. It is examined (step ST11).
• step ST11 If it is determined in step ST11 that the map matches, all the map information is read. (Step ST12). If it is determined in step ST10 that it is not attached, or if it is determined in step ST11 that they do not match, the reading contents of the map information are restricted (step ST13).
• the navigation device has the following effects. That is, when map update information for a specific region is stored on each of two DVDs (storage media), for example, the map update information for country A is stored on the first page, and the map for country B is stored on the second page. If map update information is stored, if the user is a resident in country B, the first DVD is not used, and only the second DVD is used and stored in the map information storage means 11. The user's purpose may be satisfied simply by updating the map information. In order to cope with such a case, it can be configured to enable all the functions of the navigation device only when the DVD corresponding to the updated region of the two DVDs is installed. it can.
• the navigation device according to the sixth embodiment adds an application area setting means 24, an application area storage means 25, and an application area detection means 26 to the navigation device according to the first embodiment.
• the application area setting means 24, the application area storage means 25, and the application area detection means 26 may be added to the navigation device according to the second embodiment. In this case, only when the application areas match, all the functions of the navigation device are enabled without restricting the execution of the calculation items, and therefore, the same effects as those of the second embodiment described above can be obtained.
• the configuration in which all the functions of the navigation device are enabled when any one of the two DVDs described above is mounted on the storage medium driving means 12 has the following problems. For example, suppose that a set of two DVDs is purchased and two users update the map data stored in the HDD of each navigation device. After that, the first user puts the first DVD on, and the second user puts the second DVD on. In this case, both of them can update the map data, and each can effectively use all the functions of the navigation device. However, as a whole, one group has not been purchased as a force, The title arises.
• Such a problem can be solved by the following configuration. That is, first, immediately after updating the map data stored in the HDD using a DVD, control is performed so that all functions of the navigation device are not effective unless the first DVD is loaded. After that, when one week has passed, control is performed so that all functions of the navigation device are not valid unless the second DVD is replaced and the second DVD is not installed. After that, when one week has passed, control is performed so that all functions of the navigation device are not valid unless the first DVD is replaced and the first DVD is not installed. In the following, it is necessary to replace the first Z2 sheet every week (generally after a certain period of time). If there are N DVDs for updating map data, after a certain period of time, there is a need to select and replace DV D from N cyclically.
• the navigation device can make the user infer that the suppression of the information provided to the user is caused by unauthorized use of the map data. Therefore, it is suitable for use in navigation devices that provide various guidance using map information.

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• Engineering & Computer Science (AREA)
• Radar, Positioning & Navigation (AREA)
• Remote Sensing (AREA)
• Automation & Control Theory (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Navigation (AREA)
• Traffic Control Systems (AREA)
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• 2005
  • 2005-02-21 JP JP2005044279A patent/JP4541180B2/ja not_active Expired - Fee Related
  • 2005-11-18 CN CN2005800413319A patent/CN101069065B/zh not_active Expired - Fee Related
  • 2005-11-18 DE DE112005003214T patent/DE112005003214T5/de not_active Withdrawn
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