JP2009123277A - On-board sound apparatus and control method of on-board sound apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-board sound apparatus which enables selection of musical piece relevant to a road class by paying attention to a relation between a road class and a musical piece and consequently allows a user to easily select a desired musical piece during driving, and to provide its control method. <P>SOLUTION: The on-board sound apparatus 10 which reproduces the musical piece based on musical piece information includes: an HDD 22 which associates musical piece information with a road class beforehand and stores it; an input section 17 for specifying one road class out of road classes; and a control section 20 for acquiring the musical piece information relevant to the road class out of musical piece information stored in the HDD 22 based on the road class. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an in-vehicle audio device that reproduces music based on music information and a method for controlling the in-vehicle audio device.

2. Description of the Related Art In recent years, an in-vehicle acoustic device that reproduces music based on music information is known in which music information can be stored and reproduced in an HDD (Hard Disk Drive) (see, for example, Patent Document 1). In this type of in-vehicle audio device, the number of songs that can be recorded on the HDD is enormous, so when a user searches for a desired song from among them, the search for the song is performed based on the album, artist, keyword, registration date, etc. I was going.
JP 2003-141855 A

By the way, the road on which the vehicle travels is classified into a plurality of types such as an expressway and a general road, and the traffic volume and the speed limit differ depending on the road type. The music desired by the user during driving tends to differ depending on the road type, such as being selected and pops being selected on ordinary roads.
Therefore, the present invention pays attention to the relationship between the road type and the music, makes it possible to select music related to the road type, and thus, the in-vehicle audio device that can easily select the music desired by the user during driving, and its An object is to provide a control method.

In order to achieve the above object, the present invention provides an in-vehicle audio device that reproduces music on the basis of music information, storage means for previously storing the music information in association with a road type, and one of the road types. A specification means for specifying a road type, and an acquisition means for acquiring music information related to the road type from the music information stored in the storage means based on the specified road type. To do.
According to this configuration, in order to acquire music information related to the road type from the music information stored in the storage unit, the music information related to the road type is selected based on the designated road type. Can do. In particular, if the user's tendency to reproduce music information is stored in association with the road type, the music desired by the user during driving can be easily selected based on the road type.

  Further, in this configuration, the road type discriminating means for discriminating the road type on which the host vehicle travels based on the position information of the host vehicle, and the determined road type being reproduced while the predetermined music information is being reproduced. It is good also as a structure provided with the memory | storage control means linked | related with music information and memorize | stored in the said memory | storage means.

  Further, the storage means may be configured to store the number of reproductions of music information related to the road type for each road type, and to reproduce the music information based on the number of reproductions.

  Further, the display device may include a display unit that displays a list of music information acquired by the acquisition unit, and a reproduction instruction unit that instructs reproduction of at least one piece of music information among the music information in the displayed list. good.

  Further, the designation means may designate the road type based on the road type determined by the road type determination means.

  Further, the present invention provides a method for controlling an on-vehicle acoustic device that reproduces music based on music information, wherein the on-vehicle acoustic device includes storage means for storing the music information in association with a road type in advance, One road type is designated from among the music information, and music information related to the road type is acquired from the music information stored in the storage means based on the designated road type.

  According to the present invention, music information related to a road type is selected in order to acquire music information related to the road type from music information stored in the storage unit based on the designated road type. Can do. In particular, if the user's tendency to reproduce music information is stored in association with the road type, the music desired by the user during driving can be easily selected based on the road type.

Embodiments of the present invention will be described below with reference to the drawings.
In this configuration, as one aspect of the in-vehicle acoustic device, the navigation device includes a navigation function that performs route guidance of the vehicle and a music playback function that plays back music based on music information recorded on a recording medium such as an HDD. 10 is illustrated.
FIG. 1 is a block diagram showing a functional configuration of a navigation device 10 according to the present embodiment. As shown in this figure, the navigation device 10 includes a GPS (Global Positioning System) unit 11, a gyro unit 12, a vehicle speed detecting unit 13, an FM receiving unit 14, a beacon receiving unit 15, a display unit 16, An input unit 17, a user interface unit 18, a memory card slot 19, a control unit 20, an HDD control unit 21, an HDD 22, a communication control unit 23, and a music playback unit 25 are provided.

The GPS unit 11 receives GPS radio waves from GPS satellites via the GPS antenna 11A, obtains the position coordinates indicating the current location of the vehicle and the traveling direction from the GPS signals superimposed on the GPS radio waves, and calculates the GPS. Date / time information (year, month, day, hour, minute, etc.) at the current location of the vehicle is obtained by calculation from the date / time information included in the signal and the time difference between the current location of the vehicle and the information is output to the control unit 20.
The gyro unit 12 detects the relative azimuth of the vehicle with a gyro sensor and outputs it to the control unit 20, and the vehicle speed detection unit 13 obtains the vehicle speed by calculation based on the vehicle speed pulse PS of the vehicle, and the control unit 20 Output to.
The FM receiver 14 receives an FM multiplex broadcast wave via the FM antenna 14A, acquires traffic information (VICS (Vehicle Information and Communication System) information) superimposed on the FM multiplex broadcast wave, and performs a predetermined process. To the control unit 20. The beacon receiving unit 15 receives beacon information via the beacon antenna 15 </ b> A, performs a predetermined process, and outputs it to the control unit 20.

For example, a liquid crystal display device with a touch panel is applied to the display unit (display unit) 16. Under the control of the control unit 20, the searched guide route, map information indicating a facility, road type list, or searched Various information such as a music list is displayed.
The input unit 17 includes an operation detection unit that detects operations of various operators and a touch panel included in the navigation device 10, a reception unit that receives a transmission signal from a remote controller (not shown), and the like. An instruction is output to the control unit 20.
In this configuration, for example, at least one piece of music instructed by the user from the music list displayed on the display unit 16 can be played by the music playback unit 25 via the touch panel, and the input unit 17 can play music. It functions as a reproduction instruction means for instructing reproduction of information. In addition, when instructing the reproduction of music in the music list via the input unit 17, the music in the list is assigned in a predetermined order (for example, in descending order of the number of reproductions, newest registration date, etc.). You may reproduce | regenerate and you may reproduce | regenerate these music randomly.
Further, in this configuration, for example, the user can select and designate one road type from the road type list displayed on the display unit 16 via the touch panel, and the input unit 17 can be designated by the road type. It functions as a designation means for designating.
The user interface unit 18 is an I / O control circuit, a driver, or the like, and is an interface that connects the display unit 16 and the input unit 17 to the control unit 20. The memory card slot 19 is a slot for reading and writing data stored in the memory card under the control of the control unit 20.

  The control unit 20 controls the entire navigation device 10. In this configuration, the screen control of the display unit 16 on which various information such as a search screen and a searched music list is displayed during a music search operation. Execute. The control unit 20 includes a CPU 30 and its peripheral circuits, and the CPU 30 reads various data such as a control program stored in the ROM 31, and in accordance with a user instruction input via the input unit 17, the navigation device. The control process of each part of 10 is performed. The DRAM 32 is a memory used for the work area of the CPU 30, and the SRAM 33 is a non-volatile memory, and is backed up by a battery or the like while the main power source of the apparatus such as a vehicle accessory power source is off. The content is to be retained. The VRAM 34 is a memory in which display data for the display unit 16 is stored.

When the user is instructed to shift to the navigation mode as the operation mode, the control unit 20 executes a navigation program by the CPU 30 and displays a map or the like on the display unit 16. Specifically, the control unit 20 specifies the current location and traveling direction of the host vehicle based on the detection results of the GPS unit 11 and the gyro unit 12, and displays the map by using the map database 35 stored in the HDD 22. A map around the current location of the vehicle is displayed on the unit 16. Further, when the destination is set, the control unit 20 calculates the optimum route to the destination, displays it on the display map, and executes route guidance processing to the destination.
As shown in FIG. 2, the map database 35 stores a road type list 41 in which the correspondence between road types (for example, highways, general roads, etc.) of road information and road IDs is determined in advance. The unit 20 uses the road type list 41 to determine the road type in which the host vehicle is currently in position (including running and parking). In this configuration, the control unit 20, the GPS unit 11, the gyro unit 12, and the HDD 22 function as road type determination means.

Further, the control unit 20 acquires the corresponding music information using the music database 36 stored in the HDD 22 based on a predetermined search condition, and displays the music information on the display unit 16 as a music list. In this configuration, the control unit 20 functions as an acquisition unit that acquires music information related to the road type from the music database 36 based on the designated road type.
As shown in FIG. 3, the song database 36 stores a song ID, an album name, a song name, and the like for each piece of music information, and each piece of music information is managed by the song ID. This music ID is, for example, a serial number given according to the order in which music is registered in the music database 36. The album name is the title of the album in which the music information is recorded, and the music name is the title of the music information.

  The HDD control unit 21 controls the HDD 22 under the control of the control unit 20, and records / reads data on / from the HDD 22. Further, the HDD control unit 21 stores the determined road type in the HDD 22 in association with the music being reproduced while the music reproduction unit 25 is reproducing the predetermined music. In this configuration, the HDD control unit 21 functions as a storage control unit.

The HDD (storage means) 22 is a device that stores various data in a readable and writable manner, and stores the map database 35 in which information related to roads, place names, buildings, etc. of the electronic map displayed on the display unit 16 is stored. Yes. The HDD 22 stores a music database 36 for storing music IDs and music information in association with each other. The music database 36 stores road-specific music tables 42A to 42G for storing the road type and music information in association with each road type.
As shown in FIG. 4, these road-specific music tables 42 </ b> A to 42 </ b> G are tables that store, for each road type, the music ID of the music information associated with the road type and the number of times the music information has been reproduced. is there. The HDD control unit 21 determines whether or not the music ID of the music is registered in the road-specific music table 42A of the determined road type (for example, road ID: 1) when a predetermined music is played. If not registered, the music ID is registered in the road-specific music table 42A. If the music ID is already registered, 1 is added to the number of reproductions of the music corresponding to the music ID in the road-specific music table 42A. .

Under the control of the control unit 20, the communication control unit 27 accesses an information center and the Internet via a wireless communication device 28 (for example, a mobile phone) connected to the navigation device 10, and performs various types via a wireless communication network. Receive information.
The music playback unit 25 includes a speaker device, an amplifier, and the like, and performs playback output of various music stored in the HDD 22 under the control of the control unit 20.

Next, the operation will be described.
FIG. 5 is a flowchart showing a procedure for storing the reproduced music in the road-specific music tables 42A to 42G in association with the road type. In this flowchart, it is assumed that predetermined music stored in the music database 36 of the HDD 22 is being reproduced.
When reproduction of music starts by the music reproduction unit 25, the control unit 20 acquires a road ID corresponding to the type of road on which the host vehicle is traveling (step S1). Specifically, the control unit 20 specifies the current location and the traveling direction of the host vehicle based on the detection results of the GPS unit 11 and the gyro unit 12, and maps the current location of the host vehicle using the map database 35. The road type on which the subject vehicle is located (running) is determined. Then, based on the road type list 41 stored in advance in the map database 35, a road ID corresponding to the determined road type is acquired.

  Subsequently, based on the music database 36, the control unit 20 acquires a music ID corresponding to the music currently being played by the music playing unit 25 (step S2).

Subsequently, the control unit 20 reads the road-specific music table 42 corresponding to the road type determined in step S1 from the music database 36, and the music ID acquired in step 2 is registered in the road-specific music table 42. It is determined whether or not it has been performed (step S3).
In this determination, when the music ID is already registered in the road-specific music table 42 (step S3; Yes), the control unit 20 determines the number of times of reproduction of the music corresponding to the music ID in the road-specific music table 42. 1 is added (step S4), and the process proceeds to step S6.
When the music ID is not registered in the road-specific music table 42 (step S3; No), the control unit 20 adds and registers the music ID in the road-specific music table 42, and registers the music ID in the music ID. The number of reproductions of the corresponding music is set to an initial value (1 in this embodiment) (step S5).

Subsequently, the control unit 20 acquires the road ID and the music ID again, and determines whether or not the road ID or the music ID has been changed (step S6). Here, the case where the road ID is changed means that the type of road on which the vehicle travels is changed. For example, a vehicle traveling on the expressway descends from the expressway to the ordinary road and changes to the ordinary road. This refers to the case of traveling.
Further, the case where the music ID is changed means that the music played back by the music playback unit 25 is changed, and when the playback of the previous music is finished and the playback of the next music is started, This includes the case where the user skips the reproduction of the previous music and instructs the start of the reproduction of the next music.

In this determination, when the road ID or the music ID is changed (step S6; Yes), the control unit 20 returns the process to step S3, and performs the processes of steps S3 to S5 for the changed road ID or music ID. Execute.
Here, when the user skips the reproduction of the previous music and instructs the start of the reproduction of the next music, even if the skip instruction is given, the music reproduced before is classified by the roads in steps S3 and S4. It will be registered in the music table 42. However, in the road-specific music table 42, music associated with the road type is registered based on the premise that the user-preferred music tends to differ depending on the road type. For this reason, when an instruction to skip the music is given before the music is played for a predetermined time (for example, 1 minute) or longer, the skipped music is not registered in the road-specific music table 42. It is desirable.
In the above-described determination, when the road ID or the music ID has not been changed (step S6; No), the control unit 20 determines whether or not the music reproduction by the music reproduction unit 25 has ended (step). S7).
In this determination, if the music playback by the music playback unit 25 has not ended (step S7; No), the process returns to step S6, and the music playback by the music playback unit 25 ends (step S7; Yes). Ends the process.

Next, the procedure for searching for music based on the road type will be described.
FIG. 6A shows the music search screen 51 displayed on the display unit 16. The music search screen 51 displays a search list 52 of music divided into “From Album”, “From Artist”, “From By Road”, and the like. When “From road” 53 is selected and instructed from the search list 52, the control unit 20 reads the road type list 41 (FIG. 2) from the map database 35 as shown in FIG. A road type selection screen 55 is displayed.
On the road type selection screen 55, a road list 56 based on the road type list 41 is displayed, and the user can select one road type from the road list 56. Here, when the user selects and designates “highway” 57 from the road list 56, for example, as shown in FIG. 6C, the control unit 20 searches the music table 36A for each road corresponding to the highway from the music database 36. (FIG. 4) is read, and the music selection screen 58 is displayed on the display unit 16.
Here, on the music selection screen 58, a music list 59 based on the road-specific music table 42A corresponding to the expressway is displayed, and the user selects at least one music (for example, aaa) 60 from the music list 59. Can be instructed to play.
In this configuration, the music list 59 on the music selection screen 58 is configured to display the music corresponding to the road type in the order in which the number of times of reproduction is arranged by initial setting. A date order key 61 for arranging these songs in date order (registration date order) and a collection order key 62 for arranging the songs arranged in date order again in descending order of the number of reproductions are provided. .
The music selection screen 58 is provided with an automatic reproduction key 63. When the automatic reproduction key 63 is pressed, the music displayed in the music list 59 is reproduced in the order displayed. In this way, for example, by playing music in the order of the number of times played, music that the user has listened to (that is, favorite) can be preferentially played, and playback that matches the user's preferences can be performed. it can.

  According to the present embodiment, in the in-vehicle audio device 10 that reproduces music based on music information, the HDD 22 that stores music information in association with road types in advance, and one road type from among the road types is designated. Input unit 17 and a control unit 20 for acquiring music information related to the road type from the music information stored in the HDD 22 based on the designated road type. Music information to be played can be easily selected. In particular, if the user's tendency to reproduce music information is stored in association with the road type, for example, music selection that accurately captures the user's tendency to listen well to rock on highways and pop on general roads. It becomes possible to do.

  In addition, according to the present embodiment, the road type discriminating means for discriminating the road type on which the host vehicle travels based on the position information of the host vehicle, and the road type determined while reproducing the predetermined music information Is stored in the HDD 22 in association with the music information being reproduced, and the road type to be traveled and the music that the user likes are automatically associated and stored in the HDD 22. It is possible to perform music selection that more accurately captures the tendency of music that the user often listens to due to past accumulation.

  Further, according to the present embodiment, the HDD 22 stores the number of times of music information related to the road type for each road type, and the music information is reproduced based on the number of times of reproduction. However, it is possible to preferentially reproduce the music that has been listened to many times (that is, favorite), and to perform reproduction that matches the user's preference.

  Further, according to the present embodiment, the display unit 16 that displays the list of music information acquired by the control unit 20 and the input that instructs the reproduction of at least one of the music information in the displayed list. Since the unit 17 is provided, the user can select and reproduce the desired music from the music list related to the road type.

  Although the present embodiment has been described above, the present invention is not limited to this, and various modifications can be made. For example, in the present embodiment, the configuration is such that the user specifies the desired road type from the road type list 41 displayed on the road type selection screen 55, but based on the road type determined by the road type determination unit, The road type may be automatically specified. According to this configuration, music related to the type of road on which the vehicle is traveling is automatically selected, so that it is possible to easily select music that matches the user's preference for each road type.

It is a block diagram which shows the functional structure of the navigation apparatus which concerns on this embodiment. It is the figure which showed an example of the road classification | category list which predetermined | prescribed the correspondence of road ID and road classification. It is the figure which showed an example of the music database in which music ID, album name, and music name were memorize | stored for every music information. It is the figure which showed an example of the music table classified by road music road where the music ID of the music information linked | related with the road classification and the frequency | count of reproduction | regeneration of the said music information were memorize | stored. It is a flowchart which shows the procedure in which the reproduced music is stored in the road-specific music table in association with the road type. It is a figure for demonstrating the procedure which searches a music based on a road classification, A is a figure which showed the music search screen, B is a figure which showed the road classification selection screen, C is a music selection screen. FIG.

Explanation of symbols

10 Navigation device (Vehicle acoustic device)
11 GPS unit (road type discrimination means)
12 Gyro unit (road type discrimination means)
16 Display section (display means)
17 Input unit (designation means, reproduction instruction means)
20 Control unit (road type discrimination means, acquisition means)
21 HDD control unit (storage control means)
22 HDD (storage means, road type discrimination means, designation means)
25 Music Playback Unit 35 Map Database 36 Music Database 41 Road Type List 42 Road Music Table

Claims (6)

In an in-vehicle audio device that plays music based on music information,
Storage means for storing the music information in association with a road type in advance, designation means for designating one road type from the road types, and music information related to the road type based on the designated road type An in-vehicle acoustic apparatus comprising: acquisition means for acquiring music information stored in the storage means.   The road type discriminating means for discriminating the road type on which the host vehicle travels based on the position information of the host vehicle, and while reproducing predetermined music information, the determined road type is associated with the music information being reproduced. The on-vehicle acoustic device according to claim 1, further comprising storage control means for storing in the storage means.   3. The storage unit stores the number of times of reproduction of music information related to the road type for each road type, and the music information is reproduced based on the number of reproduction times. The vehicle-mounted acoustic device described in 1.   A display means for displaying a list of music information acquired by the acquisition means, and a reproduction instruction means for instructing reproduction of at least one piece of music information among the music information in the displayed list. The in-vehicle acoustic device according to any one of claims 1 to 3.   The in-vehicle acoustic device according to any one of claims 2 to 4, wherein the specifying unit specifies the road type based on the road type determined by the road type determining unit. In the control method of the in-vehicle acoustic device for playing back music based on music information,
The in-vehicle acoustic device includes a storage unit that stores the music information in association with a road type in advance.
One road type is designated from among the road types, and music information related to the road type is acquired from the music information stored in the storage means based on the designated road type. A control method for an in-vehicle acoustic device.

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