JP2007161145A - Content reproduction device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically change output setting of an acoustic signal and/or an image signal based on an illumination signal and output it. <P>SOLUTION: The content reproduction device is provided with an illumination detection means 15 for detecting the illumination signal in the vehicle; an acoustic source 23 capable of outputting the acoustic signal; an image source 24 capable of outputting the image signal; an acoustic setting changing means 16 for changing the output setting regarding the acoustic signal when the illumination signal is detected; an image setting changing means 18 for changing the output setting regarding the image signal when the illumination signal is detected; an acoustic output means 19 for outputting the acoustic signal based on the output setting changed by the acoustic setting changing means 16; and an image output means 20 for outputting the image signal based on the output setting changed by the image setting changing means 18. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a content reproduction apparatus that reproduces content such as music and video.

  Conventionally, illumination signals used in vehicles and the like are input to various in-vehicle devices such as an in-vehicle navigation system and an in-vehicle audio system, and are used to switch the brightness of the display screen and to control lighting such as operation buttons. ing. That is, for example, based on the illumination signal, various in-vehicle devices are switched to control (operation mode) suitable for an environment with poor visibility such as nighttime or traveling in a tunnel to ensure the visibility and operability of various in-vehicle devices. It is.

As a technique for changing the operation mode between daytime and nighttime, for example, there are techniques proposed in Patent Documents 1 and 2 below.
In the technology of Patent Document 1, in a construction machine having a warning horn, the daytime work and the nighttime work are different by switching the volume of the warning horn in conjunction with the ON / OFF operation of the illumination lamp of the construction machine. It is disclosed that an alarm can be effectively given to surrounding workers or the like by the sound volume.

Further, in the technology of Patent Document 2 below, in a music generator with a clock function such as an alarm clock or an electronic music box clock, an alarm performance is performed in the morning and a sleeping performance is performed at night. Etc. are disclosed.
JP-A-8-26028 JP 2001-34266 A

By the way, when the driver drives the vehicle at night, the driver may become sleepy, the vehicle speed may increase, and the driver may feel frustrated and may not be able to make a calm judgment. For this reason, it is desired to make the driving environment as comfortable as possible by waking up the driver's sleepiness or calming down while driving at night.
Therefore, there is a method of using music as one of methods for obtaining these effects. In general, music is effective in awakening sleepiness, healing a person's heart (healing effect), and changing the mood. However, when music is played back monotonously, there is a problem that the above effect is weakened. In addition, the techniques of Patent Documents 1 and 2 do not consider a method for solving such a problem.

  The present invention was devised in view of such problems, and can improve the comfort of the driving environment during night driving by enabling the setting of music and video output to be changed according to the detection of the illumination signal in the vehicle. The purpose is to be able to.

  For this reason, the content reproduction apparatus of the present invention according to claim 1 detects an illumination signal in the illumination detection means for detecting an illumination signal in the vehicle, an acoustic source capable of outputting an acoustic signal, and the illumination detection means. The sound setting change means for changing the output setting for the sound signal output from the sound source, and the sound output means for outputting the sound signal based on the output setting changed by the sound setting change means It is characterized by.

The sound setting change means may change the output setting so as to change the sound quality of the sound output when the illumination signal is detected (claim 2). When the illumination signal is detected, the output setting of the sound output may be changed so as to reproduce the reverberant sound.
Further, the sound setting changing means may change the output setting so as to sequentially reproduce a predetermined sound signal every time a predetermined time elapses. The execution and stop of the output of the acoustic signal may be switched (claim 5).

In addition, the content reproduction apparatus includes a passenger detection sensor for detecting the presence of a passenger, and the sound setting changing unit is configured to detect the sound source based on the illumination signal and the detection result of the passenger detection sensor. You may make it change the output setting about the said acoustic signal output (Claim 6).
Further, the content device includes a video source capable of outputting a video signal, and a video setting changing unit that changes an output setting for the video signal output from the video source when the illumination signal is detected by the illumination detection unit. And video output means for outputting the video signal from the video source based on the output setting changed by the video setting changing means.

  Further, the video setting changing means may change the output setting for the video design.

According to the present invention, at least one of the following effects or advantages can be obtained.
(1) Based on the detection of the illumination signal of the vehicle, the output setting of the sound signal (for example, music) is automatically changed and output. For example, the driver may feel sleepy while driving at night It is possible to play music to calm the mind and to improve the comfort of the driving environment when driving the vehicle.

(2) Here, as an example of changing the output setting, for example, the sound output of the sound signal is changed by changing the sound quality of the sound output of the sound signal or by changing the type of the sound signal every preset time. Therefore, the comfort can be further improved.
(3) Furthermore, since it is possible to detect the presence of a passenger and output an acoustic signal only from an output device near the driver's seat, for example, while playing music that gives the driver a stimulus, Passengers can be prevented from being stimulated by music.

  (4) Also, based on the detection of the vehicle illumination signal, the video output setting can be changed and output in addition to the sound signal, so the driver is also visually stimulated to feel sleepy. And soothing the mind, it is possible to further improve the comfort of the driving environment.

Hereinafter, a content reproduction apparatus of the present invention will be described with reference to the drawings.
(1) Description of One Embodiment FIG. 1 is a block diagram showing a configuration of a main part of a content reproduction apparatus according to one embodiment of the present invention.
As shown in FIG. 1, the content reproduction apparatus of the present embodiment includes, for example, a battery 1, a headlight 2, a vehicle width lamp 3, a meter panel light 4, an illumination signal generator 5, and a bus 6. , A sensor group 7, a CPU 14, a memory 21, a hard disk drive (HDD) 22, a display 25, and a speaker 26.

The battery 1 is a general vehicle-mounted battery for supplying electric power to various driving devices, instruments, control devices, etc. of the vehicle including the headlight 2, the vehicle width light 3, and the meter panel light 4. It is.
Further, the headlight 2, the vehicle width lamp 3, and the meter panel light 4 are lights that are operated by the electric power supplied from the battery 1. The headlight 2 is used for irradiating light in front of the vehicle, and the vehicle width lamp 3 is used for informing the existence of the own vehicle to other vehicles at night or the like. The panel light 4 is used for illuminating a display unit such as an instrument in the instrument panel.

The illumination signal generator 5 generates an illumination signal when any of the headlight 2, the vehicle width lamp 3 and the meter panel light 4 is ON.
The bus 6 is connected to the illumination signal generation unit 5, the sensor group 7, the CPU 14, the memory 21, the HDD 22, the display 25, and the speaker 26, and a control signal (for example, an illumination signal) or the like between these components. This is for transmitting drive power and the like.

The sensor group 7 is a set of devices such as various sensors mounted on the vehicle. In this embodiment, for example, the watch 8, the passenger detection sensor 9, the vehicle speed sensor 10, the visual sensor 11, and the GPS ( Global Positioning System) 12 and an audio sensor 13 are provided.
The clock (timer) 8 has a display function such as the current time and a timer (timekeeping) function, and can detect that a preset time has been reached by the timer function.

The passenger detection sensor (passenger detection means) 9 detects the presence of a person riding in the vehicle. For example, the passenger detection sensor 9 detects the pressure of the seat or the presence or absence of infrared shielding by the infrared sensor. Thus, the function can be realized.
The vehicle speed sensor 10 detects the current speed of the host vehicle. For example, the vehicle speed sensor 10 can detect the speed based on a vehicle speed pulse. In this example, the vehicle speed sensor 10 detects that the current speed of the host vehicle has reached a preset speed. You can also do it.

  The visual sensor 11 detects the movement of the driver's line of sight (eye movement). For example, the visual sensor 11 can detect that the driver's line of sight does not move for a certain period of time by cooperating with the clock 8 described above. It can be done. This visual sensor 11 can be realized, for example, by analyzing an image photographed around a driver's eyes with a small camera or the like installed on a rearview mirror. When the line of sight remains in any of the plurality of divided areas shown for a certain period of time, it is determined that there is no movement in the eyeball (that is, the line of sight) for a certain period of time, including minute eye movements, as indicated by the arrows in FIG. If there is eye movement over two or more partitioned areas within the predetermined time, it can be determined that the line of sight is moving.

The GPS 12 is for measuring the current position of the host vehicle. For example, the GPS 12 can detect that the host vehicle is located in a tunnel.
The voice sensor 13 detects the presence / absence of the passenger's speaking voice, for example, through a microphone (not shown) installed in the passenger seat or the rear seat. It can detect that you are silent.

  The CPU 14 controls the above-described components to control the operation of the entire content reproduction apparatus of this example. In this embodiment, for example, a predetermined program is read from the HDD 22 into the memory 21 and operates according to the program. By doing so, the function as the illumination detection means 15, the sound (music) setting change means 16, the video setting change means 18, the sound (music) output means 19, and the video output means 20 can be achieved. It has become. These functions may be realized using a DSP (Digital Signal Processor).

Here, the illumination detection means 15 is for detecting the illumination signal generated by the illumination signal generator 5 via the bus 6.
The music setting changing means 16 is used to change the setting for the music output (audio signal audio output) controlled by the music output means 19 when the illumination detection means 15 detects an illumination signal. The type and sound quality of the music to be played and the order of playing the music can be changed. For example, when an illumination signal is detected, a sound quality changing means 17 for changing the sound quality of the audio output is provided. Yes. The sound quality changing means 17 can change, for example, the sound quality, tempo, volume, etc. of the music to be reproduced as the setting for the music output controlled by the music output means 19.

The video setting changing means 18 is for changing the setting of the output of the video signal controlled by the video output means 20 when the illumination detection means 15 detects the illumination signal. Change the type and screen design (wallpaper, etc.).
The music output means 19 is for controlling the music output to the speaker 26, and can output the music data as a voice based on the output setting changed by the music setting changing means 16.

The video output means 20 controls video output to the display 25, and can output video data (video signal) from the video source 24 described later based on the output setting changed by the video setting changing means 18. It is like that.
Next, the memory 21 is used for storing control data used for various control processes performed by the CPU 14, the program, and the like. Generally, an internal memory such as a RAM (Random Access Memory) is used. A storage device is used.

The HDD 22 is for storing data such as music and video content, and in this embodiment, an acoustic (music) source 23 and a video source 24 are stored.
The music source 23 can output an acoustic signal (for example, music data), and the music data can be stored in advance as the music source 23 by the user or directly received from an in-vehicle radio or television. You can also memorize it. The music data includes sound effects and the like.

  The video source 24 can output a video signal (for example, video data), and this video data is also stored in advance as the video source 24 by the user in the same manner as the music data in the music source 23 described above. It is also possible to receive and store video data directly from a vehicle-mounted television or the like. The video data includes not only moving image data but also still image data such as wallpaper data.

The display 25 displays the video source 24 stored in the HDD 22 according to the control by the video output means 20.
The speaker 26 outputs the music source 23 stored in the HDD 22 in accordance with the control by the music output means 19.
Hereinafter, the operation of the content reproduction apparatus of the present embodiment configured as described above will be described with reference to FIGS.

(1.1) First Mode FIG. 2 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the first mode of the present embodiment.
This process is repeatedly executed with the power of the content playback apparatus turned on. First, the illumination detection unit 15 determines whether an illumination signal from the vehicle is detected (step S1).

  When the illumination detection means 15 detects an illumination signal from the vehicle (yes route of step S1), the music setting changing means 16 and the music output means 19 are connected to the music source 23 in the HDD 22 via the bus 6. Is reproduced to output music to the speaker 26 (step S2). Even if the music is not played before the illumination signal is detected, the predetermined music may be started to be triggered by the detection of the illumination signal, or the illumination signal is not detected. When the illumination signal is OFF, the music reproduction may be stopped. In addition, when music is played back before the illumination signal is detected, the music output state may be maintained as it is. For example, when the in-vehicle navigation system detects the illumination signal during operation, Output control of sound signals of a sound source such as a radio is performed. Such an execution / stop switching operation can be similarly performed by the CPU 14 in each mode described later.

Further, in this step S2, music and screen (music or screen) may be switched. At this time, the video setting changing means 18 and the video output means 20 read the video source 24 in the HDD 22 via the bus 6. Video (moving image data, still image data, etc.) is output to the display 25.
For example, as shown in FIG. 3, the wallpaper (screen design) displayed on the display 25 is switched with or without music playback by detecting the illumination signal (for example, from light blue wallpaper to blue wallpaper). Change).

  If the illumination detection means 15 does not detect an illumination signal from the vehicle (no route in step S1), the settings relating to music and / or video output are not changed, and the previous state is maintained (step S3). ), The process proceeds to step S1, and the detection of the illumination signal is continuously monitored. For example, when the illumination signal is changed from the ON state to the OFF state, the process transitions to the state before the illumination detection (step S1). In addition, when the illumination signal is changed from the ON state to the OFF state by the CPU 14, the processing can be similarly changed to the state before the illumination detection in each aspect described later.

  With the above processing, when the headlight 2, the vehicle width lamp 3, and the meter panel light 4 are turned on and an illumination signal is detected during night driving, music can be automatically played back. The screen design of the display 25 can be changed along with the music reproduction or independently of the music reproduction. Therefore, it is possible to stimulate the driver with music, and also to visually stimulate the driver, so it is possible to promote a change of mood such as awakening the driver to sleep while driving at night. It becomes possible to improve the comfort of the environment.

(1.2) Second Mode Next, FIG. 4 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the second mode of this embodiment. In addition to the detection of the illumination signal, FIG. The processing flow in the case of operating in cooperation with the timekeeping function is shown.
This process is repeatedly executed with the power of the content reproduction apparatus turned on. First, the illumination detection unit 15 determines whether or not an illumination signal from the vehicle is detected (step S4).

If the illumination detection signal from the vehicle is detected in the illumination detection means 15 (yes route in step S4), whether or not the time set in advance by the user in the clock 8 has reached the music setting change means 16 and This is determined by the video setting changing means 18 (step S5).
If it is determined in step S5 that the preset time has come (yes route in step S5), music playback and / or video display according to the music playback settings and / or video output settings preset by the user. Is executed by the music output means 19 and the video output means 20 (step S6). For example, suppose that the user has previously specified music to be played at each time and / or specified the brightness (luminance), color tone, contrast, etc. of the screen of the display 25. At each time, designated music playback and / or screen display is performed. As an example of the screen display at this time, as shown in FIG. 5, for example, the screen brightness is changed so that the screen when the time is 20:00 is brighter than when the time is 18:00. Furthermore, the screen brightness is changed so that the screen is brighter when the time is 22:00 than when the time is 20:00, and the video (moving image data or still image data) is displayed. Can do.

If the illumination signal from the vehicle is not detected in step S4 (no route of step S4), the above setting is not changed and the previous state is maintained (step S7), and the process proceeds to step S4. Then, the illumination signal is continuously monitored by the illumination detection means 15.
In step S5, when the time set in advance by the user is not reached (no route in step S5), the state is maintained as it is (step S8), and the process proceeds to step S5, and the user It is monitored whether or not a preset time has come.

  Through the above processing, when the headlight 2, the vehicle width lamp 3, and the meter panel light 4 are turned on and the illumination signal is detected while traveling at night, etc., and the current time becomes a time preset by the user. The music playback and / or video display is performed according to the music playback settings and / or video output settings preset by the user, that is, the music and screen display can be changed at each designated time. Therefore, the driver's mood can be avoided by avoiding that the same kind of music is played for a long time or the display screen is fixed and the driver's auditory and visual stimulation becomes monotonous and causes sleepiness. Can be refreshed, and the comfort of the driving environment can be improved.

(1.3) Third Mode Next, FIG. 6 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the third mode of the present embodiment. In addition to the detection of the illumination signal, the vehicle speed sensor 10 shows a processing flow in the case of operating in cooperation with FIG.
This process is repeatedly executed with the power of the content playback apparatus turned on. First, the illumination detection unit 15 determines whether an illumination signal from the vehicle is detected (step S9).

When the illumination detection signal is detected by the illumination detection means 15 (yes route in step S9), the current vehicle speed detected by the vehicle speed sensor 10 is the vehicle speed preset by the user. For example, the music setting changing means 16 determines whether or not (for example, 80 km / h) has been exceeded (step S10).
As a result, if the current speed of the vehicle exceeds the preset vehicle speed (yes route in step S10), the music output means 19 performs music playback according to the music settings preset by the user ( Step S11). The music to be played at this time is preferably a song that calms the driver's feeling, for example, a slow-tempo song. At this time, along with music playback or instead of music playback, the video source 24 in the HDD 22 may be read via the bus 6 to play back the video and output it to the display 25. The video to be reproduced at this time is also preferably a video that relaxes the driver, for example.

On the other hand, if the illumination signal from the vehicle is not detected in step S9 (no route of step S9), the state up to that point is maintained (step S12), the process proceeds to step S9, and the illumination signal is displayed. Detection continues to be monitored.
In step S10, when the current vehicle speed detected by the vehicle speed sensor 10 is equal to or lower than the vehicle speed preset by the user (no route in step S10), the state up to that point is maintained ( In step S13), the process proceeds to step S10, and the vehicle speed is continuously monitored.

  Through the above processing, when an illumination signal is detected while driving at night, and when the current speed exceeds a preset vehicle speed, the driver, such as a slow-tempo song or a song with healing effect (healing music), etc. By playing songs and videos that will calm your feelings, you can be encouraged to reduce the vehicle speed, so you can improve the comfort of the driving environment.

(1.4) Fourth Aspect FIG. 7 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the fourth aspect of the present embodiment. In addition to the detection of the illumination signal, the visual sensor 11 shows a processing flow when operating in cooperation with No. 11.
This process is repeatedly executed with the power of the content playback apparatus turned on. First, the illumination detection unit 15 determines whether an illumination signal from the vehicle is detected (step S14).

  When an illumination signal from the vehicle is detected by the illumination detection means 15 (yes route of step S14), the visual sensor 11 cooperates with the timer function of the timepiece 8 so that the driver's line-of-sight direction Is not changed for a certain time (for example, several seconds or several minutes) (step S15). The determination at this time is performed based on the determination criteria described above with reference to FIG. In addition, the detection frequency by the visual sensor 11 can be set (changed) as appropriate, and the detection frequency can be appropriately adjusted to suppress excessive detection.

  As a result of the above determination, if it is determined that the driver's line-of-sight direction has not changed for a certain period of time (yes route in step S15), the CPU 14 (music setting changing means 16 and music output means 19) Music set in advance by the user is reproduced and output to the speaker 26 (step S16). The music to be played at this time is preferably a song that makes the driver feel sleepy (for example, a song with intense tone or tempo, or a song that the driver has not watched recently). At this time, an image that makes the driver feel sleepy may be reproduced together with the music reproduction or instead of the music reproduction.

On the other hand, if the illumination signal from the vehicle is not detected in step S14 (no route of step S14), the state up to that point is maintained (step S17), and the process proceeds to step S14, where the illumination signal Detection continues to be monitored.
If it is determined in step S15 that the driver's line-of-sight direction has changed within the predetermined time (no route in step S15), the state up to that point is maintained (step S18), and the process is as follows. The process proceeds to step S15, and the change in the gaze direction of the driver is continuously monitored.

  With the above processing, when driving at night, etc., the illumination signal is detected, and when it is detected that the driver's line-of-sight direction has not changed for a certain period of time, the driver's preset drowsiness is awakened Since music and / or video can be automatically played, for example, when a situation is detected in which the driver's line of sight does not change during sleep at night and the driver may feel sleepy. Music and / or video that can be awakened to call attention can be automatically reproduced, and the comfort of the driving environment can be improved.

  At this time, the CPU 14 may output a warning announcement from the speaker 26 or display a warning message on the display 25 together with or instead of the music (video) reproduction. In addition, a vibrator function may be provided on the driver's seat, and the driver may be alerted by the vibrator function. Furthermore, a sudden braking or meandering operation may be detected using a gyro sensor or the like together with the visual sensor 11 or instead of the visual sensor 11 to perform the same operation as described above.

(1.5) Fifth Mode Next, FIG. 9 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the fifth mode of the present embodiment. In addition to the detection of the illumination signal, FIG. The processing flow in the case of operating in cooperation is shown.
Also in this example, this process is repeatedly executed with the power of the content reproduction apparatus turned on. First, the illumination detection unit 15 determines whether or not an illumination signal from the vehicle is detected (step S19).

When the illumination detection means 15 detects an illumination signal from the vehicle (yes route in step S19), the current position is measured by the GPS 12, and it is determined whether or not the vehicle is located in the tunnel. Determination is made (step S20).
As a result, when it is determined that the host vehicle is located in the tunnel (yes route in step S20), the equalizer or the like as the music setting changing means 16 will play the currently played music (or play). The sound quality is set so that a reverberant sound is applied (reproduced) to the music) and output to the speaker 26 (step S21). Here, the reverberant sound means sound that is reflected by a wall or the like and arrives. By setting such a reverberant sound to be applied to music, it is possible to reproduce the music as if it were being played in a building such as a live house.

On the other hand, if the illumination signal from the vehicle is not detected in step S19 (no route in step S19), no change in settings relating to music and / or video output is performed and the previous state is maintained (step S19). S22), the process proceeds to step S19, and the detection of the illumination signal is continuously monitored.
Further, when it is determined in step S20 that the host vehicle is not located in the tunnel (no route of step S20), the state up to that point is maintained (step S23), and the process proceeds to step S20. After the transition, it is monitored whether the vehicle is still located in the tunnel.

  Through the above processing, when an illumination signal is detected, and further when it is detected that the host vehicle is located in the tunnel, the music quality is changed and, for example, music with reverberant sound is automatically played back. It is possible to create a powerful viewing environment as if you are watching music in a live house when driving in a tunnel that is easy to get sleepy in a monotonous landscape, improving the comfort of the driving environment It becomes possible to plan.

(1.6) Sixth Mode Next, FIG. 10 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the sixth mode of this embodiment. In addition to the detection of the illumination signal, FIG. The processing flow in the case of operating in cooperation with is shown.
Also in this example, this processing is repeatedly executed with the power of the content reproduction apparatus turned on. First, the illumination detection unit 15 determines whether or not an illumination signal from the vehicle is detected (step S24).

  When the illumination detection means 15 detects an illumination signal from the vehicle (yes route in step S24), the current time is further detected by the clock 8, and the current time is set in the time zone set by the user ( For example, it is determined whether or not it is normally a time zone such as 6:00 to 18:00 that does not require lighting devices such as the headlight 2, the vehicle width lamp 3, and the meter panel light 4 (step S25). Note that the time zone at this time can be freely set and changed by the user. For example, a different time zone can be set depending on different seasons such as summer and winter.

  As a result of the determination, if it is determined that the current time is in the time zone (yes route in step S25), for example, the CPU 14 announces a warning from the speaker 26 to the driver while the illumination is lit. (Step S28). This warning, for example, prompts the user to suppress excessive power consumption of the battery 1. At this time, the CPU 14 can also display a warning message on the display 25 together with the announcement or instead of the announcement. At this time, the CPU 14 can also set the lighting devices such as the headlight 2, the vehicle width lamp 3 and the meter panel light 4 to be automatically turned off.

On the other hand, if the illumination signal from the vehicle is not detected in step S24 (no route of step S24), the state up to that point is maintained (step S27), and the process proceeds to step S24, where the illumination signal Detection continues to be monitored.
If it is determined in step S25 that the current time is not within the set time zone (no route in step S25), the previous state is maintained (step S26).

With the above processing, when an illumination signal is detected in a certain time zone set by the user, for example, a daytime time zone in which illumination (lighting device) is usually unnecessary, the user is informed that the lighting device is ON. Since it can be notified by voice and / or video, it is possible to reduce the burden on the battery 1 and prevent waste.
(1.7) Seventh Mode Next, FIG. 11 is a flowchart for explaining the operation (executed by the CPU 14) as the seventh mode of the present embodiment. In addition to the detection of the illumination signal, the passenger detection sensor 9 and FIG. The processing flow in the case of operating in cooperation is shown.

Also in this example, this processing is repeatedly executed with the power of the content reproduction apparatus turned on. First, the illumination detection means 15 determines whether or not an illumination signal from the vehicle is detected (step S29).
When the illumination detection signal is detected by the illumination detection means 15 (yes route in step S29), whether there is a passenger in the passenger seat and / or the rear seat by the passenger detection sensor 9. It is determined whether or not (step S30).

As a result, when it is detected that there is a passenger (yes route in step S30), the CPU 14 (music setting changing means 16 and music output means 19) reproduces music and / or video set in advance by the user. To the speaker 26 (step S31).
On the other hand, when the illumination signal from the vehicle is not detected in step S29 (no route of step S29), the state up to that point is maintained (step S32), and the process proceeds to step S29 to display the illumination signal. Detection continues to be monitored.

If it is determined in step S30 that there are no passengers (no route in step S30), the state up to that point is maintained (step S33), the process proceeds to step S30, and the passenger continues. The presence of the person is monitored.
With the above processing, when the illumination signal is detected during night driving or the like, and when it is detected that a passenger is present, music and / or video set in advance by the user can be reproduced. When a lover is in the passenger seat, it can automatically play songs and movies with moods such as ballads, improving the interior of the passenger compartment and driving comfort Can be improved.

(1.8) Eighth aspect.
Next, FIG. 12 is a flowchart for explaining the operation (executed by the CPU 14) of the content reproduction apparatus as the eighth aspect of the present embodiment, in cooperation with the audio sensor 13 in addition to the detection of the illumination signal. A processing flow in the case of operation is shown.
Also in this example, this processing is repeatedly executed with the power of the content reproduction apparatus turned on. First, the illumination detection unit 15 determines whether or not an illumination signal from the vehicle is detected (step S34).

When the illumination detection means 15 detects an illumination signal from the vehicle (yes route of step S34), it is further determined by the voice sensor 13 whether or not a voice is detected from the passenger seat (step). S35).
As a result, when the voice from the passenger seat is not detected (no route of step S35), the timer count is started by the timer function of the clock 8 (step S36). In step S37, it is determined whether or not the voice from the passenger seat is detected for a predetermined time (for example, 5 minutes). The predetermined time can be freely set by the user, thereby preventing excessive detection by the voice sensor 13.

  In step S37, if the voice from the passenger seat is not detected, for example, for 5 minutes (yes route in step S37), the CPU 14 (music setting changing means 16 and music output means 19) is close to the passenger seat side. The volume of the speaker 26 is muted and music is played back only from the speaker 26 near the driver's seat, or the volume of the speaker 26 near the passenger's seat is controlled to be lowered (step S38).

On the other hand, when the voice from the passenger seat is detected within the predetermined time (5 minutes) in step S37 (no route of step S37), the process proceeds to step S35, and the voice sensor 13 continues. It is monitored whether voice is detected from the passenger side.
If no illumination signal is detected from the vehicle in step S34 (no route in step S34), the state up to that point is maintained (step S39), the process proceeds to step S34, and the illumination continues. Signal detection is monitored.

Further, when the voice from the passenger seat is detected within the predetermined time (5 minutes) in step S35 (yes route of step S35), the state up to that point is maintained (step S40), and the processing is performed in step S35. Shifting to S35, it is monitored whether or not voice is continuously detected from the passenger seat side.
With the above processing, when the nighttime driving is performed, an illumination signal is detected, and if the passenger's voice cannot be detected for a predetermined time from the passenger seat side or the like, music is only heard from the speaker 26 close to the driver side. Since it can be played (or the volume of the speaker 26 close to the passenger side is reduced), while playing music that stimulates the driver, there is no conversation with the driver for a certain period of time. In a situation in which a person is sleepy, music playback that takes into account the passenger can be realized automatically without bothering the driver, and the comfort of the driving environment can be improved.

  As described above, in the content reproduction apparatus according to the present embodiment that realizes each of the operations described above, setting changes relating to music output and / or video output are automatically performed based on the illumination signal and the detection result of the sensor group 7. Since it is possible to suppress the monotonous reproduction of music and / or video by performing and reproducing and outputting to the driver, the driver is audibly and / or visually stimulated to wake up the driver's attention. Or refreshing, calming, or healing, it is possible to improve the driving environment when driving the vehicle.

In addition, since it is possible to output the music only from the speaker 26 near the driver's seat by detecting the presence of the passenger, for example, while playing music that stimulates the driver, It is possible not to give a stimulus by music.
Further, how the detection result of the sensor group 7 is reflected in the setting relating to music output and / or video output may be manually set freely by the user, thereby further improving the above-described effect. It is possible to achieve the above effects in consideration of passengers and passengers.

(2) Others Note that the above-described content reproduction device does not necessarily have all the various functions described above. For example, the video setting change means 18, the video output means 20, and the video source 24 do not have to be equipped when the settings relating to the video are unnecessary, and the sound quality change means 17 is equipped when the sound quality change is unnecessary. It is not necessary. Also, it is not always necessary to equip all the sensor groups 7, and it is only necessary to equip only those necessary for realizing the necessary operations among the various operations described above. Further, when the operation based only on the detection result of the illumination signal is sufficient, the sensor group 7 may not be interlocked.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to said embodiment, In the range which does not deviate from the meaning of this invention, it can change arbitrarily and can implement.

It is a block diagram which shows the structure of the principal part of the content reproduction apparatus which concerns on one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as 1st aspect of one Embodiment of this invention. It is a figure which shows the switching process of the screen in the content reproduction apparatus as a 1st aspect of one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as a 2nd aspect of one Embodiment of this invention. It is a figure which shows the brightness change of the screen in the content reproduction apparatus as a 2nd aspect of one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as 3rd aspect of one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as a 4th aspect of one Embodiment of this invention. It is a figure for demonstrating the criterion of the visual sensor in one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as a 5th aspect of one Embodiment of this invention. It is a flowchart which shows operation | movement of the content reproduction apparatus as the 6th aspect of one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as the 7th aspect of one Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the content reproduction apparatus as the 8th aspect of one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Battery 2 Headlight 3 Vehicle width light 4 Meter panel light 5 Illumination signal generation part 6 Bus 7 Sensor group 8 Clock 9 Passenger detection sensor 10 Vehicle speed sensor 11 Visual sensor 12 GPS
13 Voice sensor 14 CPU
15 Illumination detection means 16 Sound (music) setting change means 17 Sound quality change means 18 Video setting means 19 Sound (music) output means 20 Video output means 21 Memory 22 HDD
23 Sound (music) source 24 Video source 25 Display 26 Speaker

Claims (8)

Illumination detection means for detecting an illumination signal in the vehicle;
An acoustic source capable of outputting an acoustic signal;
When the illumination signal is detected by the illumination detection means, an acoustic setting changing means for changing an output setting for the acoustic signal output from the acoustic source;
A content reproduction apparatus comprising: an audio output unit that outputs an audio signal based on the output setting changed by the audio setting change unit.   2. The content reproduction apparatus according to claim 1, wherein the sound setting changing unit changes the output setting so as to change a sound quality of the sound output when the illumination signal is detected.   2. The content reproduction apparatus according to claim 1, wherein the sound setting changing unit changes the output setting of the audio output so as to reproduce a reverberation sound when the illumination signal is detected.   2. The content reproducing apparatus according to claim 1, wherein the sound setting changing unit changes the output setting so that predetermined sound signals are sequentially reproduced every time a predetermined time elapses.   The content reproduction apparatus according to claim 1, wherein the sound setting changing means switches between execution and stop of the output of the sound signal. Provide passenger detection means to detect the presence of passengers,
The sound setting change means changes an output setting for the sound signal output from the sound source based on the illumination signal and a detection result of the passenger detection means. The content reproduction device according to any one of 1 to 5. A video source capable of outputting a video signal;
Video setting changing means for changing an output setting for the video signal output from the video source when the illumination signal is detected by the illumination detection means;
2. The content reproduction apparatus according to claim 1, further comprising video output means for outputting the video signal from the video source based on the output setting changed by the video setting changing means.   8. The content reproducing apparatus according to claim 7, wherein the video setting changing means changes an output setting for a video design.