JP2010225235A - On-vehicle sound reproducing apparatus and sound reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle sound reproducing apparatus for automatically reproducing music depending on speeds of a vehicle when starting reproduction of a playlist by making the list depending on the speeds of the vehicle for making the playlist. <P>SOLUTION: The on-vehicle sound reproducing apparatus mounted on the vehicle and connected to a speed detector set on the vehicle for detecting the speed of the vehicle includes a media reproducing part 101 for outputting a reproduction signal of sound signal data and sound information data by reproducing the data recorded on a recording medium, a micro computer 104 for associating the speed of the car output from a speed of car information outputting part 120 with the sound information data reproduced by the media reproducing part 101, and a storage 105 for storing the information associated by the micro computer 104 as the data of the playlist. The micro computer 104 controls the reproduction of the media reproducing part 101 based on the playlist stored in the storage 105. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an on-vehicle sound reproducing device and a sound reproducing method for reproducing music stored in a storage medium based on a playlist.

Conventionally, as a music playback device, a song that matches a subject is specified, a playlist including information for identifying the specified song is created at a predetermined timing, and a plurality of playlists are extracted from the created playlist. The corresponding theme is displayed on the display unit, the playlist corresponding to the requested theme is obtained from the displayed theme, and the sound data of the music identified by the obtained playlist is reproduced. Is known (see, for example, Patent Document 1).
JP 2006-243854 A

  However, in the conventional one, the playlist created by the user or automatically created is automatically selected by the user according to the situation that the user wants to reproduce, and the playlist according to the driving situation is changed to the driving situation. It was not automatically played back together.

  The present invention creates a list according to the vehicle speed when creating a playlist, and automatically reproduces music according to the vehicle speed when playback of the playlist is started. The purpose is to eliminate.

  An in-vehicle acoustic device according to the present invention is an on-vehicle acoustic reproduction device mounted on a vehicle and connected to a vehicle speed detector that is provided in the vehicle and detects the speed of the vehicle, and reproduces data recorded on a recording medium. A media reproduction unit that outputs audio signal data and a reproduction signal of the audio information data, a control unit that associates the vehicle speed detected by the vehicle speed detector with the audio information data reproduced by the media reproduction unit, and the control unit A storage unit that stores the associated information as playlist data, and the control unit is configured to control the playback operation of the media playback unit based on the playlist stored in the storage unit. .

Moreover, the vehicle-mounted acoustic device according to the present invention includes an association between the vehicle speed detected by the vehicle speed detector of the control unit and the audio information output by the media reproduction unit, and information associated with the control unit of the storage unit. It has the structure provided with the key input part which generate | occur | produces the instruction | indication signal for performing the memory | storage as play list data.
Furthermore, the sound reproduction method of the present invention causes the microcomputer to store the detected vehicle speed and the audio information recorded on the recording medium in association with each other as playlist data, and based on the stored playlist data. It has a configuration for controlling the reproduction operation of the recording medium.

  With this configuration, a playlist automatically created according to the driving situation can be reproduced according to the driving situation.

  The present invention can provide an in-vehicle acoustic device that improves comfort during driving by automatically creating a playlist according to driving conditions and automatically reproducing the playlist.

  Hereinafter, automatic playlist creation and reproduction according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a functional block diagram of the in-vehicle acoustic device according to the embodiment of the present invention.

  In FIG. 1, an in-vehicle audio device 100 as an in-vehicle acoustic device includes data such as music and voice recorded on a recording medium such as a memory card using a CD (Compact Disc), an HDD (Hard Disk Drive), or a semiconductor memory. Is a device for reading out data recorded on a recording medium and outputting audio data and audio information data as signals, and audio reproduced by the media reproducing unit 101. An audio processor 102 that performs signal processing such as changing the volume and sound quality with respect to a data signal (audio signal) and an amplifier 103 that amplifies and outputs the audio signal output from the audio processor 103 are provided.

  Here, the data reproduced by the media playback unit 101 includes at least audio-related data such as music and narration, and audio-related information corresponding to the audio data such as the music, narration song name, title, or artist name. There is data indicating. The former is called voice data, the latter is called voice information data, and the information related to the voice corresponding to the voice data, such as music, narration song title, title or artist name, is called voice information.

  Further, the in-vehicle audio 100 includes a microcomputer 104 as a control unit having a calculation function such as a CPU for controlling the entire in-vehicle audio 100, and a memory for storing various data via the microcomputer 104. A unit 105, a key input unit 106 for a user to operate the in-vehicle audio 100, and a display unit 107 for displaying an operation state of the in-vehicle audio 100 and the like are provided.

  Accordingly, when the user operates the key input unit 106 provided in the in-vehicle audio 100, an operation signal corresponding to the user's operation is transmitted from the key input unit 106 to the microcomputer 104, and the microcomputer 104 receiving the operation signal receives the operation signal. The in-vehicle audio system 100 performs a desired operation by determining the operation content and outputting a control signal according to the operation content.

  For example, when the user operates the key input unit 106 to perform the playback operation of the media playback unit 101, a playback operation for reading the data on the recording medium is started by the media playback unit 101, and is read by the media playback unit 101. The audio data is decoded and output to the audio processor 102 as an audio signal. The audio processor 102 performs signal processing on the input audio signal so that the sound volume and sound quality set by the user operating the key input unit 106 in advance are output to the amplifier 103 provided in the next stage. To do. The amplifier 103 amplifies the power of the audio signal input to the amplifier 103 with a predetermined gain and outputs it to the speaker 130 connected to the in-vehicle audio 100. The audio signal that has been subjected to signal processing by the audio processor 102 and amplified by the amplifier 103 is output from the speaker 130 as audio. Here, as the key input unit, a button switch, an encoder volume, or a so-called input device such as a jog shuttle or a touch panel is used.

  Furthermore, a vehicle speed information output unit 120 as a vehicle speed detector that detects the speed of the vehicle on which the in-vehicle audio 100 is mounted and outputs speed information indicating the detected speed is connected to the in-vehicle audio 100.

  The vehicle speed information output unit 120 uses a so-called vehicle speed sensor provided in the vehicle, and outputs the vehicle speed information as a pulse signal or a data signal of a CAN that constructs an in-vehicle LAN. The signal is input to the microcomputer 104 of the in-vehicle audio 100.

  Although details will be described later, the microcomputer 104 uses the vehicle speed information to create a playlist suitable for the current driving situation and to select a playlist for reproducing the playlist suitable for the current driving situation. The storage unit 105 stores current vehicle speed information and play list data. Further, the display unit 107 displays a playlist selection button for selecting a playlist, and the key input unit 106 has a function of selecting a playlist by an input device such as a dedicated button.

  Further, as shown in FIG. 1, the key input unit 106 is connected to the microcomputer 104 by a bus, and is provided with a setting button for switching between “ON” and “OFF” a playlist creation mode described later. ing. When the user presses the setting button of the key input unit 106, the operation information is detected by the microcomputer 104, and the microcomputer 104 stores in the storage unit 105 whether the playlist creation mode is turned on or off by the user. .

  Note that the vehicle speed information output unit 120 connected to the vehicle-mounted audio 100 from the outside of the vehicle-mounted audio 100 is connected to the microcomputer 104, and vehicle speed information is input as data from the vehicle speed information output unit 120 to the microcomputer 104. Therefore, when the vehicle travels, the current vehicle speed information is calculated or detected by the microcomputer 104 and stored in the storage unit 105.

  Here, as the vehicle speed information, a vehicle speed pulse signal is used, or when the vehicle speed information output unit 120 and the microcomputer 104 are connected by CAN (Controller Area Network), information in a format conforming to the CAN protocol is used.

  The operation of the in-vehicle audio configured as described above will be described with reference to FIGS.

  In the following description, the playlist creation mode is one of the operation modes of the in-vehicle audio of the present embodiment, and corresponds to “vehicle speed (vehicle speed)” as one of “driving conditions”. In this mode, songs to be played back by the media playback unit 101 are created as a list, and the data of the list is stored in the storage unit 105.

  First, when the operation state of the media playback unit 101 mounted on the vehicle-mounted audio 100 is playing an arbitrary song, information that can identify the song being played, such as the title of the song being played, is playback information. Is stored in the storage unit 105 (S1).

  Then, the microcomputer 104 acquires the vehicle speed information output from the vehicle speed information input device 120 at this time, calculates the speed of the currently traveling vehicle by the microcomputer 104, and outputs it to the storage unit 105. (S2). Here, considering that the vehicle speed gradually accelerates from 0 km / h, the acquired data is not adopted for about 10 seconds immediately after the start of driving, and the vehicle speed data is treated as unknown and stored in the storage unit 105. To do.

  Next, the microcomputer 104 reads out from the storage unit 105 whether the playlist creation mode that has already been input through the key input unit 106 is set to “ON” or “OFF” (S3). ). Operation information indicating whether the playlist creation mode is set to “ON” or “OFF” is detected in advance by the microcomputer 104 connected by bus to the key input unit 106 and stored in the storage unit 105. Has been.

  If it is determined in step S3 that the playlist creation mode is “ON”, the microcomputer 104 reads the vehicle speed information calculated in step S2 from the storage unit 105, and determines whether or not the current vehicle speed is less than 10 km / h. 104 determines (S4).

  In step S4, if the microcomputer 104 determines that the current vehicle speed is less than 10 km / h, the “slow” count value for the currently played music is read from the storage unit 105 and counted up by the microcomputer 104. Then, the value after counting up is stored in the storage unit 105 (S7).

  If the determination in step S4 is No, the microcomputer 104 determines whether or not the current vehicle speed is less than 60 km / h (S5).

  In step S5, when the microcomputer 104 determines that the current vehicle speed is less than 60 km / h, the “outing” count value for the currently played music is read from the storage unit 105 and counted up by the microcomputer 104. The value after counting up is stored in the storage unit 105 (S8).

  If the determination in step S5 is No, the microcomputer 104 determines whether or not the current vehicle speed is 61 km / h or higher (S6).

  If the microcomputer 104 determines in step S6 that the current vehicle speed is 61 km / h or more, the count value of “outing” for the currently reproduced music is read from the storage unit 105 and counted up by the microcomputer 104. The increased value is stored in the storage unit 105 (S9).

  Here, as in the case where the determination in step S6 is No, since the vehicle speed is treated as unknown for about 10 seconds from the start of driving, there is a case where it cannot be registered in any playlist.

  Next, the microcomputer 104 determines whether or not the music playback state in the media playback unit 101 has been changed to a music end state or a user's skip operation or the like (S10).

  If the determination in step S10 is No, the process ends without doing anything, but if yes, the information counted in step S7, step S8, and step S9 is read from the storage unit 4, and the maximum value of the count in the microcomputer 104 Is one of “slow”, “outing”, and “outing”, and the calculation result is stored in the storage unit 105 (S11).

  After that, the maximum value of the count stored in the storage unit 105 is read in step S11, and the microcomputer 104 determines whether the “slow” count value is the above-mentioned maximum count value for the music played back by the media playback unit 101. Judgment is made (S12).

If the microcomputer 104 determines that “slow” is the maximum count value in step S12, it is determined that the reproduced music is “slow” and the reproduction information of the music is associated with “slow” to the storage unit 105. Store (S15). Here, as shown in FIG. 5, storing in association means that the reproduction information of the song “DDD.mp3” is associated with “slow” one-to-one in the storage unit 105 according to the maximum count value. The same applies to the following description.

  If the determination result in step S12 is No, the microcomputer 104 determines whether or not the “outing” count value is the maximum count value (S13).

  When the microcomputer 104 determines that “Odekake” is the maximum count value in step S13, the reproduction unit reproduces the reproduction information of the reproduced music as “Odekake” and stores it in association with “Odekake”. The data is stored in 105 (S16).

  If the determination result in step S13 is No, the microcomputer 104 determines whether or not the “outing” count value is the maximum count value (S14).

  If the microcomputer 104 determines that “outing” is the maximum count value in step S14, the reproduction information of the reproduced music is stored in association with “outing”, assuming that the reproduced music is the “outing” music. The data is stored in the unit 105 (S17).

  In addition to the above description, the playlist information stored as shown in FIG. 5 is linked to either “slow”, “outing”, or “outing” for each song and stored in the storage unit 105 as a playlist database.

  If the microcomputer 104 determines in step S3 that the playlist creation mode is “OFF”, the playlist is not created for the music played back by the media playback unit 101, and the following processing is performed.

  That is, the vehicle speed information calculated in step S2 is read from the storage unit 105, and the microcomputer 104 determines whether or not the current vehicle speed is less than 10 km / h (S18).

  If it is determined in step S18 that the current vehicle speed is less than 10 km / h, it is determined to play the “slow” playlist, and the microcomputer 104 reads the playlist database from the storage unit 105 and reads “slowly” ”Is selected and the media playback unit 101 is instructed to play back the music (S20).

  If the determination in step S18 is No, that is, if it is determined that the current vehicle speed is not less than 10 km / h, the microcomputer 104 determines whether or not the current vehicle speed is less than 60 km / h (S19).

  If it is determined in step S19 that the current vehicle speed is less than 60 km / h, it is determined to play the “Odekake” playlist, and the microcomputer 104 reads the playlist database from the storage unit 105 and sets it to “Odekake”. The music stored in association is selected, and the media playback unit 101 is instructed to play the music (S21).

  If the determination in step S19 is No, the microcomputer 104 determines that the current vehicle speed is 61 km / h or higher, and determines to play the “outing” playlist. The microcomputer 104 stores the playlist database in the storage unit. The music read out from 105 and stored in association with “outing” is selected, and the media playback unit 101 is instructed to play back the music (S22).

  Here, if the vehicle speed increases or decreases near the thresholds of 10 km / h and 60 km / h, the playlist being played changes quickly, so convenience is taken into account for songs that have already been played. Even if the speed information changes, we will listen to the end. However, in this case, it is determined that the user has listened to the end even if the user skipped in the middle of the song.

  Further, for example, when the playlist creation mode is set to “OFF” and the vehicle travels on a highway, it is possible to automatically reproduce a music group registered in the past as “outing”.

  Further, as shown in FIG. 6, in consideration of user convenience, “slow”, “outing”, “outing”, and “automatic speed” may be selected as the playlist reproduction mode. In this case, in the case of “slow”, the “slow” playlist registered in the playlist database is played, and in the case of “outing”, the “outing” playlist registered in the playlist database is played, In the case of “outing”, the “outing” playlist registered in the playlist database is reproduced. In the case of “automatic speed”, the playlist corresponding to the above-mentioned speed is reproduced.

  As described above, according to the in-vehicle audio system 100 according to the embodiment of the present invention, it is possible to automatically create a playlist according to the vehicle speed and automatically reproduce the playlist according to the vehicle speed with respect to the created playlist. it can. Accordingly, since the playlist saved in accordance with the driving situation can be reproduced in accordance with the driving situation, it is possible to provide a comfortable music reproduction for the driver.

  As described above, the in-vehicle audio according to the present invention improves comfort during driving by providing automatic playlist creation and playback according to driving conditions, not simply playlist registration / playback. It has the effect of being a playback method, and is useful as an on-vehicle sound playback device that plays back music stored in a storage medium based on a playlist.

The block diagram of the vehicle-mounted acoustic apparatus in embodiment of this invention The flowchart for operation | movement description of the vehicle-mounted audio apparatus in embodiment of this invention The flowchart for operation | movement description of the vehicle-mounted audio apparatus in embodiment of this invention The figure which shows an example of the setting button for setting the play list preparation mode of the vehicle-mounted audio apparatus in embodiment of this invention The figure which shows the database of a playlist which shows the play list reproduction registration condition for every music of this invention The figure which shows an example of the button for performing play list reproduction mode so that selection is possible

DESCRIPTION OF SYMBOLS 100 In-vehicle audio 101 Media reproduction part 102 Audio processor 103 Amplifier 104 Microcomputer 105 Memory | storage part 106 Key input part 107 Display part 120 Vehicle speed information output part 130 Speaker

Claims (3)

An on-vehicle sound reproduction device mounted on a vehicle and connected to a vehicle speed detector provided on the vehicle to detect the speed of the vehicle,
A media playback unit for playing back data recorded on a recording medium and outputting playback signals of audio signal data and audio information data;
A control unit that associates the vehicle speed detected by the vehicle speed detector with the audio information data reproduced by the media reproduction unit, and a storage unit that stores information associated with the control unit as playlist data;
The in-vehicle sound reproducing apparatus, wherein the control unit controls a reproducing operation of a media reproducing unit based on a playlist stored in the storage unit.   Correspondence between the vehicle speed detected by the vehicle speed detector of the control unit and the audio information output by the media playback unit, and storage of information associated with the control unit of the storage unit as playlist data is executed. The in-vehicle acoustic device according to claim 1, further comprising a key input unit that generates an instruction signal for the purpose. To the microcomputer,
An acoustic reproduction method in which a detected vehicle speed and audio information recorded on a recording medium are associated with each other and stored as playlist data, and a reproducing operation of the recording medium is controlled based on the stored playlist data.