JP2007133538A - Navigation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a navigation device for securing the free space of a recording medium without selecting any existing music data for compression. <P>SOLUTION: This navigation device is configured to detect the number of times of use of area-categorized map data based on a traveling history in a navigation device 1, and to store the number of times of use of the area-categorized map data in an HDD 12, and to determine whether or not it is possible to store music data in the free space of the HDD 12 by a capacity comparison determination program when a music CD or a music DVD is inserted into a music input part 17, and to, when determining that it is impossible to store the music data in the free space of the HDD 12, automatically select and erase map data whose number of times of use is small from the number of times of use of the area-categorized map data stored in the HDD 12 for securing the free space of the HDD 12. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention proposes a selection means for selecting data for compressing map data used in a navigation apparatus.

  Conventionally, in order to enjoy music in the car, a CD (compact disc) or MD (mini disc) in which audio data is written is brought into the car, and the music is ripped to a recording medium such as an HDD (hard disk) or flash memory. There are in-vehicle audio devices and navigation devices that can be stored.

In such an in-vehicle audio system, music data already stored in the recording medium to be compressed is selected according to the free space of the recording medium for recording data and the amount of music data to be newly stored. Then, the user sets the compression rate for the selected music data, compresses it, expands the free area of the recording medium, and stores the newly stored music data uncompressed (for example, patents) Reference 1).
JP 2005-174378 A

  However, the music data stored in the recording medium is selected when the recording medium runs out of free space as in the case of conventional in-vehicle audio, and the user sets the compression rate for the selected music data and compresses the music data. With such a configuration, it is impossible to secure a sufficient storage area for music data to be newly stored, and it is necessary to select newly stored music data.

  Also, as the music stored on the recording medium increases, the music data stored on the recording medium is often compressed, and there is no difference from the music data compressed and stored when storing the music on the recording medium. There was a fear.

  Therefore, an object of the present invention is to provide a navigation device that can secure a free space in a recording medium without selecting existing music data for compression.

  The navigation device of the present invention includes a ripping unit that stores map data of a plurality of areas in a storage unit, sets a destination from a current position, performs route guidance, rips music, and stores the music data in the storage unit. In the navigation device, the number-of-uses detection unit that detects the number of times the map data is used for each area, a storage capacity detection unit that detects a free area of the storage unit, and the free space detected by the storage capacity detection unit A data comparison / determination unit that compares the area and the music data to determine whether the music data can be stored in the storage unit; and the data comparison / determination unit has a storage area for the music data larger than the free area A map data organizing unit for organizing map data in an area with a small number of uses detected by the use number detecting unit It has been made.

The navigation device configured in this way detects the number of times map data is used for each area by the number-of-uses detection unit, detects the free space in the storage unit provided in the navigation device by the storage capacity detection unit, and newly creates music. When the data comparison and determination unit can save the music data and the free space in the storage unit when it is ripped and stored in the storage unit, the use detected by the number-of-uses detection unit is determined Since the map data organizing unit organizes the map data in the area where the frequency is low, the number of times saved in the memory unit even if there is not enough free space when saving new music data in the memory unit A free area in the storage unit can be secured by organizing the map data of an area with a small amount by the data organizing unit.
The data organizing unit is, for example, a unit that deletes, compresses, moves to another medium, and the like on map data. The storage unit may be a storage medium such as an HDD (hard disk) or a flash memory that can store a large amount of data. The music is, for example, a commercially available music CD, music DVD, music MD, etc. stored in a CD-ROM, DVD-ROM, MD, flash memory, etc., and downloads music from a network such as the Internet. You may do it.

  The map data organizing unit of the navigation device of the present invention is configured to delete the map data from the storage unit.

  When the navigation apparatus configured in this way stores the music data in the storage unit and the data comparison determination unit determines that the free area of the storage unit is insufficient, the use detected by the number-of-uses detection unit An empty area of the storage unit can be secured by deleting the map data with a small number of times from the storage unit by the data organizing unit.

  The map data organizing unit of the navigation device of the present invention is configured to move the map data to an external magnetic recording medium.

  According to the navigation device configured as described above, when the map data with a small number of uses detected by the use number detection unit is organized by the data organizing unit, the map data is moved to an external magnetic recording medium, An empty area in the storage unit can be secured. The magnetic recording medium is preferably one that can be used by being inserted into or attached to a navigation device. For example, an SD card, USB memory, flash memory, or the like can be used.

  The map data organizing unit of the navigation device of the present invention is configured to compress the map data and re-save it in the storage unit.

  According to the navigation device configured as described above, when the music data is stored in the storage unit, if the data comparison determination unit determines that the free space of the storage unit is insufficient, the usage detected by the number-of-uses detection unit By compressing the map data with a small number of times in the data organizing unit, it is possible to secure a free space in the storage unit, and even when the map data with a small number of uses is compressed, a minimum navigation function can be secured. . The compressed map data can be restored as necessary. For example, when the compressed map data is restored, the number of uses of the map data that is not compressed is detected and used by the use number detection unit. The compressed map data may be restored after the map data with a small number of times is compressed by the data organizing unit to secure the storage area of the storage unit.

  In addition, the usage count detection unit of the navigation device of the present invention is configured to detect the usage count of the map data except for the map data of an area registered in advance by a user of the navigation device.

According to the navigation device configured in this way, the user of the navigation device registers the map data of the area that the user does not want to organize in advance by the data organizing unit, so that the usage count is not detected by the usage count detecting unit. The map data of the selected area can be used by the user without being organized by the data organizing unit. For example, even if the number of times of use of the map data is small, it is possible to prevent the data organizing unit from organizing by registering the map data that the user always uses.

  In addition, the navigation device of the present invention has a communication unit capable of communicating with the outside, and is configured to acquire map data deleted by the map data organizing unit from the outside using the communication unit.

  The navigation device configured as described above includes a communication unit that can communicate with the outside, and thus can acquire map data deleted by the data organizing unit from the outside. For example, even if map data with a small number of uses is deleted, the deleted map data can be acquired and used as needed when using the navigation device. In addition, when acquiring map data from the outside, for example, a map data server or a map database connected to a network can be used. Moreover, when acquiring the deleted map data, you may comprise so that map data with few frequency | counts of use detected by the number-of-uses detection part may be acquired after deleting with the data arrangement part. Moreover, you may comprise so that the music data preserve | saved at the memory | storage part of a navigation apparatus may be downloaded from an external network using a communication part.

  In the navigation apparatus in which map data of a plurality of areas is stored in the storage unit, the number of times of use is determined when it is determined that the data comparison determination unit has insufficient free space in the storage unit when storing music data. By deleting the map data in a small area, it is possible to secure a free area in which the music data can be stored in the storage unit.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the navigation device of the present invention. In the first embodiment, a method for deleting map data that is used less frequently as a map data organizing unit will be described.

  As shown in FIG. 1, the navigation device 1 is stored in an input interface (hereinafter referred to as input IF) 11 for inputting various data, an HDD 12 for storing various data, a ROM 13 for storing various programs, and a ROM 13. A CPU 14 that interprets and executes a program, a RAM 15 that holds data from the input IF 11 and the CPU 14, a sound processor 16 that controls sound output in accordance with the data from the CPU 14, and a recording medium such as a music CD or a music DVD A music input unit 17 to be reproduced, an image processor 18 that controls image output in accordance with data from the CPU 14, a VRAM 19 that holds image data, and an output interface (hereinafter referred to as an output IF) 20 that outputs various data. Prepared, these are connected by bus .

  The input IF 11 includes a GPS receiver 21 that receives GPS data from a satellite, an azimuth sensor 22 that outputs azimuth data corresponding to the azimuth, a speed sensor 23 that outputs speed data corresponding to the speed, and an object. A touch panel 24 that outputs data related to contact coordinates in response to contact with the communication unit 24 is configured to be connected to the outside.

  The HDD 12 stores electronic map data of road maps, and the map data stores map data in which areas are subdivided according to prefectures such as Tokyo, Kanagawa, and Saitama. . Further, music data such as music CDs and music DVDs ripped by the CPU 14, detection results of a map data usage count detection program for each area, which will be described later, and the like can be stored.

  In the ROM 13, in addition to the navigation program, a map data usage count detection program for detecting the number of travel histories in the navigation device 1, a ripping program for converting music CDs, music DVDs, etc. into music data, and HDD 12 The capacity management program for managing the free area, the capacity comparison / determination program for determining whether or not music data can be stored in the free area of the HDD 12, and the number of times of use is small according to the detection results of the area-specific map data use count detection program. A deletion program for deleting map data is stored.

  Note that the ripping unit processes the ripping program in the ROM 13 and the CPU 14 in combination. Further, the map data usage count detection unit processes the combination of the area-specific map data usage count detection program in the ROM 13 and the CPU 14. A storage capacity detector is a combination of the capacity management program stored in the ROM 13 and the CPU 14. Further, a data comparison / determination unit processes the combination of the capacity comparison / determination program in the ROM 13 and the CPU 14. Also, the data organizing unit processes the combination of the ROM 13 deletion program and the CPU 14.

  The CPU 14 controls the navigation device 1 and performs processing by reading from the program stored in the ROM 13 according to the intended use. For example, the area-specific map data use count detection program read by the CPU 14 is configured to detect the map data use count for each area and record the detection result in the HDD 12. Further, the capacity management program read by the CPU 14 is configured to always grasp the capacity of the HDD 12 and store the capacity in the header portion of the HDD 12, for example.

  The output IF 20 is connected to a speaker 31 that outputs sound corresponding to the sound data, a display 32 that displays an image corresponding to the image data, and a communication unit 24 that can be connected to the outside.

  Next, the flow of storing music data in the HDD of the navigation device 1 configured as described above will be described in detail with reference to a flowchart. FIG. 2 is a flowchart showing the operation of the navigation device in the first embodiment. It is assumed that the map data usage count by area of the navigation device 1 is detected from the travel history.

  When a music CD or a music DVD is inserted into the music input unit 17 of the navigation apparatus 1 and stored in the HDD 12, the CPU 14 reads the music data to be stored in the HDD 12 as shown in FIG. 2 (S 1) and stores it in the ROM 13. The free area of the HDD 12 managed by the capacity management program thus prepared is compared with the capacity of the music data (S2).

  At this time, when the music data is larger than the free space of the HDD 12 (S3, YES), the map data with a smaller number of uses is deleted from the area-specific map data use times (S4). Then, by deleting the map data that is used less frequently, a free area of the HDD 12 is secured, and new music data can be stored in the HDD 12 (S5). When the music data is smaller than the free space of the HDD 12 (S3, NO), the music data is stored in the HDD 12 without deleting the map data (S5).

The navigation device 1 according to the first embodiment configured as described above detects the number of times map data for each area is used based on the travel history in the navigation device 1 and stores the number of times map data for each area is used in the HDD 12. When a music CD or a music DVD is inserted into the music input unit 17, it is determined by the capacity comparison determination program whether or not music data can be stored in the free area of the HDD 12, and the music data is stored in the free area of the HDD 12. When it is determined that the data cannot be stored, map data with a small number of uses is automatically selected and deleted from the number of times map data used for each area stored in the HDD 12 is deleted, and a free space in the HDD 12 is secured. Such music data can be stored in the HDD 12.

(Second Embodiment)
Next, a second embodiment will be described in detail with reference to the drawings. Note that the configuration of the navigation device 1 of the second embodiment will not be described in detail for the same parts as those shown in the first embodiment, and only the changes will be described in detail. FIG. 3 is a flowchart showing the operation of the navigation device 1 according to the second embodiment. FIG. 4 is a conceptual diagram showing display on the display according to the second embodiment.

  The navigation apparatus 1 according to the second embodiment includes an input IF 11 for inputting various data, an HDD 12 for storing various data, a ROM 13a for storing various programs, and a CPU 14 for interpreting and executing the programs stored in the ROM 13a. A RAM 15 that holds data from the input IF 11 and the CPU 14, an audio processor 16 that controls audio output in accordance with the data from the CPU 14, a music input unit 17 that reproduces a recording medium such as a music CD or a music DVD, An image processor 18 that controls image output in accordance with data from the CPU 14, a VRAM 19 that holds image data, and an output IF 20 that outputs various data are connected by a bus.

  Here, in addition to the navigation program, the ROM 13a includes a map data usage count detection program for detecting the number of travel histories in the navigation device 1, and a ripping program for converting music CD, music DVD, etc. into music data. The capacity management program for managing the free area of the HDD 12, the capacity comparison judgment program for judging whether or not music data can be stored in the free area of the HDD 12, and the number of use times detected by the area-specific map data use number detection program. A list display program for displaying a list of a small area on the display 32, and a deletion program for deleting the map data with a small number of times of use by selecting or deselecting the map data displayed on the display 32 are stored. Yes.

The operation of the navigation device 1 configured as described above will be described with reference to a flowchart.
In the navigation apparatus of the present invention in the second embodiment, when a music CD or music DVD is inserted into the music input unit 17 of the navigation apparatus 1 and stored in the HDD 12, the CPU 14 stores in the HDD 12, as shown in FIG. The music data to be read is read (S6), and the free area of the HDD 12 managed by the capacity management program stored in the ROM 13 is compared with the capacity of the music data (S7).

  At this time, when the music data is larger than the free space of the HDD 12 (S8, YES), a list of map data with a small number of uses detected by the area-specific map data use count detection program stored in the ROM 13 is displayed on the display 32. It is displayed on the screen (S9). Then, the map data to be deleted is selected from the map data displayed as a list on the display 32. (S10).

  When selected from the map data displayed on the display 32 (S10, YES), the selected map data is deleted (S12). Then, again, the free area of the HDD 12 is compared with the music data to be stored (S7). If it is determined that the music data can be stored in the free area of the HDD 12 (S8, NO), the music data is stored in the HDD 12 (S13). ).

If it is determined in step 8 (S8) that the music data is larger than the free area of the HDD 12 (S8, YES), the map data with a smaller number of uses is displayed on the display 32 again (S4) and deleted. Map data to be selected is selected (S10). The process is repeated until the music data can be stored in the free space of the HDD 12 (S10 → S12 → S7 → S
8 → S9 → S10), the music data is saved when the free space of the HDD 12 is secured (S13).

  Further, in step 10 (S10), when the map data to be deleted displayed on the display 32 is not selected (S10, NO), the number of times of use that can secure a free space for music data stored in the HDD 12 is small. The map data is automatically deleted (S11), and the music data is saved when a free space in the HDD 12 is secured (S13).

  In the second embodiment configured as described above, the number of times of use of map data by area is detected based on the travel history in the navigation device 1, the number of times of use of map data by area is stored in the HDD 12, and music is stored. When a music CD or a music DVD is inserted into the input unit 17, it is determined by the capacity comparison determination program whether or not music data can be stored in an empty area of the HDD 12. At this time, if it is determined that the music data cannot be stored in the free area of the HDD 12, for example, as shown in FIG. 4, the map data A with a small number of uses detected by the area-specific map data use count detection program is displayed as a list. It is displayed on the display 32 by a program.

  Then, the user selects and deletes from the displayed list of map data with a small number of times of use, so that an empty area of the HDD 12 can be secured and music data such as a music CD or music DVD can be stored. Further, after a map data list with a small number of uses is displayed on the display 32, if the user does not select the navigation device after a certain time (for example, 3 minutes), it is automatically displayed in the list. The recorded map data can be deleted to secure a free space in the HDD 12 and the music data can be stored.

(Third embodiment)
Next, a third embodiment will be described in detail with reference to the drawings. Note that the configuration of the navigation device 1 according to the third embodiment is not described in detail for the same portions as those shown in the first embodiment and the second embodiment, and only the changes are detailed. Explained. In the third embodiment, it is assumed that the user registers in the navigation device 1 an area that is not desired to be deleted in advance in the navigation device (map data of an area that is less frequently used but is to be saved). . Further, it is assumed that the number of times map data is used by area of the navigation device 1 is detected from the travel history.

  As shown in FIG. 1, the navigation apparatus 1 according to the third embodiment includes an input IF 11 for inputting various data, an HDD 12 for storing various data, a ROM 13b for storing various programs, and a program stored in the ROM 13b. The CPU 14 that interprets and executes, the RAM 15 that holds data from the input IF 11 and the CPU 14, the audio processor 16 that controls the audio output according to the data from the CPU 14, and a recording medium such as a music CD or a music DVD are reproduced. A music input unit 17, an image processor 18 that controls image output in accordance with data from the CPU 14, a VRAM 19 that holds image data, and an output IF 20 that outputs various data are connected via a bus. Has been.

  Here, in addition to the navigation program, the ROM 13b includes a map data usage count detection program for detecting the number of travel histories in the navigation apparatus 1, and a ripping program for converting music CDs, music DVDs, etc. into music data. The capacity management program for managing the free area of the HDD 12, the capacity comparison judgment program for judging whether or not music data can be stored in the free area of the HDD 12, and the number of use times detected by the area-specific map data use number detection program. A specified area determination program that determines whether or not a small area is an area specified by the user, and a deletion program that deletes map data that is used less frequently based on the determination result of the specified area determination program are stored. Yes.

The operation of the navigation device 1 configured as described above will be described with reference to a flowchart.
FIG. 5 is a flowchart showing the operation of the navigation device according to the third embodiment. In the navigation apparatus of the present invention in the third embodiment, when a music CD or music DVD is inserted into the music input unit 17 of the navigation apparatus 1 and stored in the HDD 12, the CPU 14 stores in the HDD 12, as shown in FIG. The music data to be read is read (S21), and the free space of the HDD 12 managed by the capacity management program stored in the ROM 13 is compared with the capacity of the music data (S22).

  At this time, when the music data is larger than the free area of the HDD 12 (S23, YES), the user enters the list of map data with a small number of uses detected by the area-specific map data use count detection program stored in the ROM 13c. The presence / absence of map data in the registered area is confirmed by the designated area determination program (S24).

  If there is map data for the area registered by the user (S24, YES), map data with a small number of uses except for the area registered by the user is deleted (S25), and a free space in the HDD 12 is secured. The music data is saved (S27). In step 24 (S24), if there is no map data of the area specified by the user in the list of map data with a low number of uses (S24, NO), the map data with a low number of uses is deleted and the HDD 12 is free. The area is reserved and the music data is saved (S27).

  In the navigation device of the third embodiment configured as described above, an area that the user does not want to delete is registered in the navigation device 1 in advance, and a music CD or a music DVD is inserted into the music input unit 17. Whether or not the music data can be stored in the free area of the HDD 12 is determined by the capacity comparison determination program, and if it is determined that the music data cannot be stored in the free area of the HDD 12, it is detected by the area-specific map data use count detection program. The specified area determination program determines whether or not there is an area registered in advance by the user in the map data that is used less frequently. If there is a specified area, the map data excluding the area is deleted and the HDD 12 is free. An area can be secured and music data such as a music CD or music DVD can be stored in the HDD 12. In particular, the map data that the user thinks necessary can be excluded from the deletion target.

(Fourth embodiment)
Next, a fourth embodiment will be described in detail with reference to the drawings. In the first embodiment to the third embodiment, map data with a low usage count is deleted. In the fourth embodiment, a method for compressing map data with a low usage count will be described. .
In addition, about the structure of the navigation apparatus 1, detailed description is abbreviate | omitted with respect to the same location as what was shown in 1st Embodiment, and only a changed part is demonstrated in detail.

  The navigation device 1 according to the fourth embodiment includes an input IF 11 for inputting various data, an HDD 12 for storing various data, a ROM 13d for storing various programs, and a CPU 14 for interpreting and executing the programs stored in the ROM 13d. A RAM 15 that holds data from the input IF 11 and the CPU 14, an audio processor 16 that controls audio output in accordance with the data from the CPU 14, a music input unit 17 that reproduces a recording medium such as a music CD or a music DVD, An image processor 18 that controls image output in accordance with data from the CPU 14, a VRAM 19 that holds image data, and an output IF 20 that outputs various data are connected by a bus.

In addition to the navigation program, the ROM 13d includes a map data usage count detection program for detecting the number of travel histories in the navigation device 1, a ripping program for converting music CDs, music DVDs, etc. into music data, A capacity management program for managing the free area of the HDD 12, a capacity comparison judgment program for judging whether or not music data can be stored in the free area of the HDD 12, and the number of uses according to the detection results of the area-specific map data use count detection program And a compression program for compressing map data with a small amount of data. A data organizing unit processes the combination of the compression program in the ROM 13d and the CPU 14.

  The flow of storing music data in the HDD of the navigation device 1 in the fourth embodiment configured as described above will be described in detail with reference to a flowchart. FIG. 6 is a flowchart showing processing when ripping music with the navigation device and storing it in the HDD. It is assumed that the map data usage count by area of the navigation device 1 is detected from the travel history.

  When a music CD or a music DVD is inserted into the music input unit 17 of the navigation device 1 of the fourth embodiment and stored in the HDD 12, the CPU 14 stores the music to be stored in the HDD 12, as shown in FIG. Data is read (S28), and the free space of the HDD 12 managed by the capacity management program stored in the ROM 13 is compared with the capacity of the music data (S29).

  At this time, when the music data is larger than the free area of the HDD 12 (S30, YES), the map data with a small number of uses detected by the area-specific map data use count detection program stored in the ROM 13d is compressed by the compression program. (S31). Then, an empty area of the HDD 12 is secured and the music data is stored (S32). If the free area of the HDD 12 is larger than the music data in S30 (S30, NO), the music data is stored in the free area of the HDD 12 (S32).

  The navigation device 1 according to the fourth embodiment configured as described above detects the number of times map data for each area is used based on the travel history in the navigation device 1 and stores the number of times map data for each area is used in the HDD 12. save. When a music CD or a music DVD is inserted into the music input unit 17, it is determined whether or not music data can be stored in the free area of the HDD 12 by the capacity comparison determination program, and the music data cannot be stored in the free area of the HDD 12. When the determination is made, map data with a small number of uses is automatically selected and compressed from the number of times the map data used for each area stored in the HDD 12 is compressed to secure a free space in the HDD 12, so there is no free space in the HDD 12. In addition, music data such as music CDs and music DVDs can be stored in the HDD 12.

(Fifth embodiment)
Next, a fifth embodiment will be described in detail with reference to the drawings. Detailed description of the configuration of the navigation device 1 is omitted for the same parts as those shown in the first embodiment.

  As shown in FIG. 1, the navigation device of the fifth embodiment interprets an input IF 11 for inputting various data, an HDD 12 for storing various data, a ROM 13e for storing various programs, and a program stored in the ROM 13e. CPU 14 to be executed, RAM 15 for holding data from input IF 11 and CPU 14, audio processor 16 for controlling audio output in accordance with data from CPU 14, and music for reproducing recording media such as music CDs and music DVDs An input unit 17, an image processor 18 that controls image output according to data from the CPU 14, a VRAM 19 that holds image data, and an output IF 20 that outputs various data are connected by a bus. ing.

Here, in the ROM 13e, in addition to the navigation program, a map data usage count detection program for detecting the number of travel histories in the navigation device 1, a ripping program for converting music CD, music DVD, etc. into music data, A capacity management program for managing the free area of the HDD 12, a capacity comparison judgment program for judging whether or not music data can be stored in the free area of the HDD 12, and the number of uses according to the detection results of the area-specific map data use count detection program A compression program for compressing map data with a small amount of data and a list display program for displaying a list of areas with a small number of uses detected by the map data use count detection program for each area on the display 32 are stored.

  The flow of storing music data in the HDD of the navigation device 1 in the fifth embodiment configured as described above will be described in detail with reference to a flowchart. FIG. 7 is a flowchart showing the operation of the navigation device in the fifth embodiment.

  In the navigation device 1 according to the fifth embodiment of the present invention, when a music CD or a music DVD is inserted into the music input unit 17 of the navigation device 1 and stored in the HDD 12, the CPU 14 stores in the HDD 12 as shown in FIG. The music data to be stored is read (S33), and the free space of the HDD 12 managed by the capacity management program stored in the ROM 13e is compared with the capacity of the music data (S34).

  At this time, when the music data is larger than the free space of the HDD 12 (S35, YES), a list of map data with a small number of uses detected by the area-specific map data use count detection program stored in the ROM 13e is displayed on the display 32. It is displayed on the screen (S36). When the user of the navigation device 1 selects map data to be compressed from the map data list displayed on the display 32 (S37, YES), the selected map data is compressed (S39).

  Then, it is compared whether or not there is a free area for storing the music data in the HDD 12 due to the compression of the selected map data (S34), and if the music data can be stored in the HDD 12, the HDD 12 stores it. The music data is stored (S40), and when the HDD 12 has insufficient free space, the map data is selected again to compress the map data, and the processing is repeated until a free space in the HDD 12 where the music data can be stored is secured.

  If the map data to be compressed is not selected by the user in step 37 (S37), the map data with a small number of uses is automatically compressed (S38), and a free space for storing music data is secured in the HDD 12. Then, an empty area is secured in the HDD 12 (S40).

  The navigation device 1 according to the fifth embodiment configured as described above registers an area that the user does not want to delete in advance, and uses the map data by area based on the travel history in the navigation device 1. When a music CD or a music DVD is inserted into the music input unit 17, it is determined by the capacity comparison determination program whether or not music data can be stored in the empty area of the HDD 12. When it is determined that the music data cannot be stored in the free area of the HDD 12, a list of map data with a small number of uses detected by the area-specific map data use count detection program is displayed on the screen of the display 32. The user selects map data to be compressed, compresses the map data, reserves a free space in the HDD 12, and stores the music data in the HDD 12. In addition, when the user does not select, the map data displayed in the list is automatically compressed, the free space of the HDD 12 is secured, and the music data can be saved.

(Sixth embodiment)
Next, a sixth embodiment will be described in detail with reference to the drawings. In the first to fifth embodiments, deletion and compression have been described for map data with a small number of uses. In the sixth embodiment, map data with a small number of uses is recorded magnetically. A method of moving to a medium will be described. Further, the same reference numerals are given to the same parts as those shown in the first embodiment for the configuration of the navigation device, and detailed description thereof is omitted. FIG. 8 is a block diagram showing a configuration of the navigation device according to the sixth embodiment.

  As shown in FIG. 8, the navigation device of the sixth embodiment interprets an input IF 11 for inputting various data, an HDD 12 for storing various data, a ROM 13f for storing various programs, and a program stored in the ROM 13f. CPU 14 to be executed, RAM 15 that holds data from the input IF 11 and CPU 14, audio processor 16 that controls audio output in accordance with data from the CPU 14, and music input that reproduces a recording medium such as a music CD or music DVD A unit 17, an image processor 18 that controls image output according to data from the CPU 14, a VRAM 19 that holds image data, an output IF 20 that outputs various data, and a magnetic recording medium such as an SD card memory are connected. Equipped with an external input / output unit 33 that can input and output to the navigation device , Which are constituted by connecting a bus.

  Here, in addition to the navigation program, the ROM 13f includes a map data usage count detection program for detecting the number of travel histories in the navigation device 1, a ripping program for converting music CDs, music DVDs, etc. into music data, A capacity management program for managing the free area of the HDD 12, a capacity comparison judgment program for judging whether or not music data can be stored in the free area of the HDD 12, and the number of uses according to the detection results of the area-specific map data use count detection program A transfer program for transferring map data with a small amount of data to a magnetic recording medium inserted in the external input / output unit 33 is stored.

Next, operation | movement of the navigation apparatus 2 is demonstrated in detail using a flowchart. FIG. 9 is a flowchart illustrating the operation of the navigation device according to the sixth embodiment.
In the navigation device 1 according to the sixth embodiment of the present invention, when a music CD or a music DVD is inserted into the music input unit 17 of the navigation device 1 and stored in the HDD 12, the CPU 14 stores in the HDD 12 as shown in FIG. The music data to be stored is read (S41), and the free space of the HDD 12 managed by the capacity management program stored in the ROM 13f is compared with the capacity of the music data (S42).

  At this time, if the music data is larger than the free space of the HDD 12 (S43, YES), the transfer program uses the map data with a small number of uses detected by the area-specific map data use count detection program stored in the ROM 13f. Transfer to the magnetic recording medium (S44).

  Then, after the free space of the HDD 12 is secured, the music data is stored in the HDD 12 (S45). If the capacity of the music data is smaller than the free space of the HDD 12 in step 43 (S43) (S43, NO), the music data is stored in the HDD 12 (S45).

  The navigation device 2 of the sixth embodiment configured as described above has a capacity whether or not music data can be stored in the free space of the HDD 12 when a music CD or music DVD is inserted into the music input unit 17. When it is determined by the comparison determination program and it is determined that the music data cannot be stored in the empty area of the HDD 12, map data with a small number of uses detected by the area-specific map data use count detection program is inserted into the external input / output unit 33. Since a free area of the HDD 12 can be secured by transferring (moving) to the magnetic recording medium, music data can be stored.

(Seventh embodiment)
Next, a fifth embodiment will be described in detail with reference to the drawings. Note that detailed description of the configuration of the navigation device 2 is omitted for the same parts as those shown in the sixth embodiment.

  As shown in FIG. 8, the navigation device 2 according to the seventh embodiment includes an input IF 11 for inputting various data, an HDD 12 for storing various data, a ROM 13g for storing various programs, and a program stored in the ROM 13g. The CPU 14 that interprets and executes, the RAM 15 that holds data from the input IF 11 and the CPU 14, the audio processor 16 that controls the audio output according to the data from the CPU 14, and a recording medium such as a music CD or a music DVD are reproduced. Detection of music input unit 17, image processor 18 that controls image output in accordance with data from CPU 14, VRAM 19 that stores image data, output IF 20 that outputs various data, and area-specific map data usage count detection program Depending on the result, map data that is used less frequently is entered / exited And a transfer program for transferring the inserted magnetic recording medium part 33, which are constituted by connecting a bus.

  Here, in the ROM 13g, in addition to the navigation program, a map data usage count detection program for detecting the number of travel histories in the navigation device 1, a ripping program for converting music CD, music DVD, etc. into music data, The number of usages detected by the capacity management program for managing the free area of the HDD 12, the capacity comparison judgment program for judging whether music data can be stored in the free area of the HDD 12, and the area-specific map data use count detection program are small. A list display program for displaying a list of areas on the display 32 and a transfer program for transferring the map data selected by the user from the map data with a small number of uses displayed on the display 32 to the magnetic recording medium are stored. The transfer program is configured to automatically transfer the map data displayed on the display 32 to the magnetic recording medium if the user does not select the map data for a certain period of time.

  The flow of storing music data in the HDD of the navigation device 2 in the seventh embodiment configured as described above will be described in detail with reference to a flowchart. FIG. 10 is a flowchart showing the operation of the navigation device in the seventh embodiment.

  In the navigation device 2 according to the seventh embodiment of the present invention, when a music CD or music DVD is inserted into the music input unit 17 of the navigation device 2 and stored in the HDD 12, the CPU 14 stores in the HDD 12 as shown in FIG. 7. The music data to be stored is read (S46), and the free area of the HDD 12 managed by the capacity management program stored in the ROM 13g is compared with the capacity of the music data (S47).

  At this time, when the music data is larger than the free space of the HDD 12 (S48, YES), a list of map data with a small number of uses detected by the area-specific map data use count detection program stored in the ROM 13g is displayed on the display 32. It is displayed on the screen (S49). When the user of the navigation device 2 selects map data to be transferred to the magnetic recording medium inserted in the external input / output unit 33 from the map data list displayed on the display 32 (S50, YES), the selected map data Is transferred to the magnetic recording medium (S52).

  Then, by transferring the selected map data to the magnetic recording medium, it is compared again whether or not there is a free area for storing the music data in the HDD 12 (S47), and the music data can be stored in the HDD 12. If there is (S48, NO), the music data is stored in the HDD 12 (S53), and if the HDD 12 has insufficient free space (S48, YES), the map data is displayed again on the display 32 (S49), The user selects map data, compresses the map data, and repeats until the free space for storing the music data is secured in the HDD 12 (S50 → S52 → S47 → S48 → S49 → S50), and the music data can be stored in the HDD 12 When free space is secured, music data is saved (S53).

  Also, if the map data to be transferred is not selected by the user in step 50 (S50), the map data with a small number of uses is automatically transferred to the magnetic recording medium (S51), and the music data is stored in the HDD 12 A free area is secured, a free area is secured in the HDD 12, and music data is stored in the HDD 12 (S53).

  The navigation device 2 according to the seventh embodiment configured as described above has a capacity whether or not music data can be stored in the free space of the HDD 12 when a music CD or music DVD is inserted into the music input unit 17. When it is determined by the comparison determination program and it is determined that the music data cannot be stored in the free area of the HDD 12, a list of map data with a small number of uses detected by the area-specific map data use count detection program is displayed on the display 32 screen. The user of the navigation device 2 can select the map data to be transferred to the magnetic recording medium, transfer the map data, secure a free space in the HDD 12, and store the music data in the HDD 12. Further, when the user does not select, the map data displayed in the list can be automatically transferred to the magnetic recording medium, and a free area of the HDD 12 can be secured to store the music data.

  As mentioned above, although the navigation apparatus of this invention was demonstrated using 7th Embodiment from 1st Embodiment, this invention is not limited, For example, the communication part provided in the navigation apparatuses 1 and 2 24, the deleted map data with a small number of times of private use may be downloaded and used after being deleted from an external network or server according to the user's application.

  Further, in the embodiment of the navigation device of the present invention, the music data is inserted into the music input unit 17 by inserting the music CD or the music DVD, and the music data is stored in the HDD 12, but the present invention is not limited to this. Alternatively, for example, the same effect can be obtained by connecting to an external network or server using the communication unit 24 and downloading music pieces required by the user.

  As described above, the navigation device according to the present invention saves music data such as music CDs and music DVDs, music data downloaded by connecting to the Internet, and the like when there is not enough free space on the hard disk. Of the map data used in the navigation device, the map data that is used less frequently is deleted, compressed, or transported to secure a free space on the hard disk (HDD) and store the music data. Is useful as a navigation device or the like that stores the data in the HDD.

The block diagram which shows the structure of the navigation apparatus of this invention The flowchart which showed operation | movement of the navigation apparatus in 1st Embodiment. The flowchart which shows operation | movement of the navigation apparatus 1 in 2nd Embodiment. The conceptual diagram which shows the display display in 2nd Embodiment The flowchart which shows operation | movement of the navigation apparatus in 3rd Embodiment. The flowchart which shows operation | movement of the navigation apparatus in 4th Embodiment. The flowchart which shows operation | movement of the navigation apparatus in 5th Embodiment. The block diagram which shows the structure of the navigation apparatus in 6th Embodiment. The flowchart which shows operation | movement of the navigation apparatus in 6th Embodiment. The flowchart which shows operation | movement of the navigation apparatus in 7th Embodiment.

Explanation of symbols

1 Navigation device 2 Navigation device 11 Input IF
12 HDD
13 ROM
14 CPU
18 Image processor 19 VRAM
20 output IF
21 GPS receiver 22 Direction sensor 23 Speed sensor 24 Communication unit 25 Touch panel 32 Display 33 External input / output unit

Claims (7)

In a navigation apparatus comprising a ripping unit that stores map data of a plurality of areas and sets a destination from a current position to perform route guidance and rips music and saves it as music data in the storage unit.
A number-of-uses detector that detects the number of times the map data is used for each area;
A storage capacity detection unit for detecting a free area of the storage unit;
A data comparison / determination unit that compares the free space detected by the storage capacity detection unit with the music data to determine whether the music data can be stored in the storage unit;
A map data organizing unit for organizing map data of an area with a small number of uses detected by the use count detection unit when the data comparison judging unit judges that the storage area of the music data is larger than the free area;
A navigation device characterized by comprising. The navigation apparatus according to claim 1, wherein the map data organizing unit deletes the map data from the storage unit. The navigation device according to claim 1, wherein the map data organizing unit moves the map data to an external magnetic recording medium. The navigation apparatus according to claim 1, wherein the map data organizing unit compresses the map data and re-saves the map data in the storage unit. The navigation device according to any one of claims 1 to 4, further comprising: a list display unit that displays a list of areas with a small number of uses detected by the use number detection unit. . The said use frequency detection part makes the map data of the area previously registered by the user of the said navigation apparatus the non-object of the said map data arrangement part, The any one of Claims 1-5 characterized by the above-mentioned. The navigation device described in 1. The said navigation apparatus has a communication part which can communicate with the exterior, and acquires the map data deleted in the said map data rearrangement part from the outside using the said communication part. 7. The navigation device according to any one of 6.

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