JP6007558B2 - Playback apparatus and playback method - Google Patents

Description

  The present disclosure relates to a playback device and a playback method.

  Proposals have been made to automatically control electronic devices according to the surrounding environment. For example, Patent Document 1 described below describes a personal computer that reduces the volume of sound reproduced from a speaker when the ambient brightness is dark.

JP 2005-110044 A

  The technique described in Patent Document 1 controls the reproduction volume only in accordance with ambient brightness. For this reason, for example, when the user wants to listen to music in a dark environment, there is a problem that control contrary to the user's intention is performed, for example, the playback volume is controlled to be small.

  Accordingly, one object of the present disclosure is to provide a playback device and a playback method that appropriately control the playback volume of the audio content being played back.

In order to solve the above-described problem, the present disclosure provides, for example,
A content playback unit for playing back content,
A control unit for controlling the reproduction mode of the content ;
An imaging unit that images a set predetermined range ,
When a control signal for making the brightness of the illumination unit smaller than the predetermined brightness is input to the control unit and a person is detected in a predetermined range imaged by the imaging unit , the control unit is a content reproduction unit Thus, the playback device changes the playback mode of the content being played back.

The present disclosure, for example,
If the control unit, the brightness of the lighting unit, a control signal for less than a predetermined brightness is input, and is imaged by the imaging unit, the person is detected within a prescribed range set, the content This is a playback method for changing the playback mode of the content being played back by the playback unit.

  According to at least one embodiment, it is possible to appropriately control the playback volume of audio content.

1A and 1B are diagrams for describing an overview of an embodiment of the present disclosure. It is a figure for explaining composition of a system in one embodiment of this indication. FIG. 3 is a block diagram for describing a configuration of a playback device and the like according to an embodiment of the present disclosure. It is a block diagram for explaining the composition of a home server in one embodiment of this indication. It is a block diagram for demonstrating the structure of the portable terminal in one Embodiment of this indication. It is a figure for demonstrating the example of a display displayed on the display part of a portable terminal, when selecting a control object. It is a figure for demonstrating the example of a display displayed on the display part of a portable terminal, when adjusting the brightness of illumination. It is a figure for demonstrating the example of a display displayed on the display part of a portable terminal, when controlling reproduction | regeneration of an audio. 6 is a flowchart showing a flow of automatic volume control processing according to an embodiment of the present disclosure. It is a figure for demonstrating the modification of an external appearance, such as a reproducing | regenerating apparatus.

Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. The description will be given in the following order.
<1. One Embodiment>
<2. Modification>
Note that the embodiments and modifications described below are preferred specific examples of the present disclosure, and the contents of the present disclosure are not limited to these embodiments and modifications.

<1. One Embodiment>
"Overview of one embodiment"
First, an outline of an embodiment of the present disclosure will be described. In one embodiment of the present disclosure, for example, the playback volume of audio content played from a speaker is changed according to the position where the user is and the brightness of the illumination. FIG. 1A shows an example of a room R of the user U. On the ceiling of the room R, an illumination L is provided. In the room R, a bed B, which is an example of bedding, is installed. The bedding may be a futon.

  Although details will be described later, the illumination L is configured integrally with an imaging device that captures a position including the bed B and a playback device that plays back audio content. Therefore, the audio content is reproduced from the vicinity of the position where the illumination L is provided toward the room R. The note marks shown in FIG. 1A schematically indicate that audio content is being reproduced in the room R. The size of the note mark schematically shows the volume of the playback volume of the audio content. The larger the note mark size, the higher the audio content playback volume.

  During reproduction of audio content, the brightness of the illumination is controlled so that the brightness of the illumination is below a predetermined brightness. In the example of FIG. 1A, since the user U is at a position different from the position of the bed, no person is detected from the captured image acquired by the imaging device. In such a case, it is determined that the user U listens to the audio content in the dark, and the playback volume of the audio content is not controlled.

  On the other hand, in the example of FIG. 1B, the user U lies on the bed B during reproduction of the audio content. A user U who is a person is detected from a captured image acquired by the imaging device. In such a case, it is determined that the user U goes to bed, and the playback mode of the audio content is changed. For example, the playback volume of the audio content being played is reduced. As described above, in the embodiment of the present disclosure, the playback volume of the audio content is controlled according to the position of the user and the brightness of the illumination. Hereinafter, the content of an embodiment of the present disclosure will be described in detail.

"Example of system"
FIG. 2 shows an example of a system configuration in one embodiment. The system 1 includes, for example, a playback device 100, a home server 200, and a mobile terminal 300. The playback device 100 is configured integrally with the illumination device 110 and the imaging device 120, for example, and attached to the ceiling of the room. Home server 200 is placed at a predetermined position in the room. The home server 200 has a size and weight that are portable, for example. The portable terminal 300 is carried by the user. Using the mobile terminal 300, the playback device 100, the home server 200, and the like can be controlled. Hereinafter, each device will be described in detail.

  The playback device 100 is attached, for example, near the center of the ceiling of the room. The playback apparatus 100 includes a columnar housing 10 that stands up from the approximate center of the ceiling toward the room. Inside the housing 10, wiring for supplying power to the reproduction device 100, the illumination device 110, and the imaging device 120 is accommodated. For example, power based on a commercial power supply is supplied to the playback device 100, the illumination device 110, and the imaging device 120.

  For example, two speakers SP are disposed on each side surface of the housing 10. The playback apparatus 100 has eight speakers SP. The position and number of speakers SP can be changed as appropriate. A light emitting unit 111 of the illumination device 110 is attached to the end surface of the housing 10. The imaging unit 121 of the imaging device 120 is erected from the approximate center of the lighting device 110 toward the room. For example, the imaging unit 121 is configured as an omnidirectional imaging optical system capable of imaging a subject existing in all directions (0 ° to 360 °), and configured to be able to image a room.

  Home server 200 stores content data. The content data is, for example, audio content. It may be video content or still image content such as a photo. The content data stored in the home server 200 is supplied to the playback device 100 via the network and played back by the playback device 100. Note that the home server 200 may have other functions such as a function as a personal computer and a function as a game machine.

  The mobile terminal 300 is, for example, a smartphone. The portable terminal 300 may be a tablet computer or a dedicated remote control device that can be used in the system 1. For example, by downloading a predetermined application to the mobile terminal 300 and executing the application, it is possible to perform control using the mobile terminal 300 for a plurality of electronic devices.

  When an operation is performed on the mobile terminal 300, a control signal corresponding to the operation is generated. A control signal is sent to the playback apparatus 100 or the like, and the playback apparatus 100 or the like operates in accordance with the control signal. The control signal transmitted from the portable terminal 300 is transmitted by radio, for example. A control signal transmitted from the portable terminal 300 may be transmitted by infrared rays.

  The following control is illustrated as control with respect to the electronic device using the portable terminal 300. FIG. For example, the home server 200 can be controlled to select audio content to be played back. For example, control for adjusting the playback volume of audio content played from the playback device 100 can be performed on the playback device 100. For example, control for adjusting the brightness of the light emitting unit 111 of the lighting device 110 can be performed on the lighting device 110.

  Each device constituting the system 1 corresponds to, for example, DLNA (Digital Living Network Alliance). DLNA is one specification for constructing a home network in which a plurality of electronic devices on a network are connected. DLNA has developed specifications (guidelines) for connecting digital AV (Audio Visual) devices and personal computers to each other via a home network and mutually using content such as moving images, music, and still images. In the DLNA specification, the following are defined as devices (referred to as devices).

DMS (Digital Media Server): A content supply unit that provides content. It is called a server.
DMP (Digital Media Player): A control playback unit having an interface function and a content playback function.
DMR (Digital Media Renderer): A playback unit having a function of playing back content stored in the DMS and content transmitted from the DMS side under the control of the DMC described later. It is called a renderer.
DMC (Digital Media Controller): A control function unit that performs necessary playback control by controlling DMP, DMR, and the like.

  In the example of the system 1, the playback device 100 functions as a DMR. The home server 200 functions as DMS and DMP. The mobile terminal 300 functions as a DMC.

“Example of the configuration of the playback device”
Next, an example of the configuration of each of the playback device 100, the illumination device 110, and the imaging device 120 (referred to as the playback device 100 as appropriate) will be described. The playback device 100, the illumination device 110, and the imaging device 120 are integrally configured, for example. The integrated configuration means that the playback device 100, the illumination device 110, and the imaging device 120 are physically integrated, and that the playback device 100, the illumination device 110, and the imaging device 120 are a common control unit. It is meant to include at least one of being controlled by.

  FIG. 3 shows an example of the configuration of the playback apparatus 100 and the like. The playback device 100 includes, for example, a control unit 101, a communication unit 102, an audio processing unit 103, an amplifier 104, and a speaker 105. A communication unit 102, an audio processing unit 103, and an amplifier 104 are connected to the control unit 101. A communication unit 102 and an amplifier 104 are connected to the audio processing unit 103. A speaker 105 is connected to the amplifier 104. For example, the audio processing unit 103, the amplifier 104, and the speaker 105 constitute a content reproduction unit. In FIG. 3, one amplifier 104 and one speaker 105 are illustrated, but in actuality, the configuration corresponds to the number of speakers (eight speakers SP) arranged in the housing 10.

  The control unit 101 is composed of, for example, a CPU (Central Processing Unit) and controls each unit of the playback device 100. For example, the setting value of the parameter in the processing of the audio processing unit 103 is changed as appropriate, and the playback mode of the audio content is changed.

  The control unit 101 further controls the illumination device 110 and the imaging device 120. For example, the control unit 101 performs control for changing the brightness of the illumination device 110. The control unit 101 analyzes the captured image supplied from the imaging device 120 and determines whether there is a person (user) on the bed. For example, an image near the bed when the user goes to bed is captured in advance, and the captured image is stored in a memory (not shown) as a pattern. A plurality of patterns may be held according to the posture of the user at bedtime. The control unit 101 performs pattern matching processing for determining whether or not a pattern is included in the captured image supplied from the imaging device 120. When the captured image includes a pattern, the control unit 101 determines that the user is on the bed.

  The method for determining whether there is a user on the bed is not limited to the pattern matching process. For example, the vicinity of the position where the pillow is placed on the bed may be imaged, and it may be determined whether or not a skin color component is included in the captured image. The control unit 101 determines that the user is in the bed when the captured image includes a skin color component. Of course, other known methods may be applied to determine whether there is a user on the bed. The control unit 101 performs control to change the reproduction mode of the audio content when it is determined that the brightness of the lighting device 110 is smaller than the predetermined brightness and the user is on the bed.

  The communication unit 102 receives audio content supplied from the home server 200 via the network. Audio content received by the communication unit 102 is supplied to the audio processing unit 103. Further, the communication unit 102 receives a control signal transmitted from the mobile terminal 300. The control signal is, for example, a control signal for adjusting the brightness of illumination or a control signal for changing the playback mode of audio content.

  The audio processing unit 103 is configured by, for example, a DSP (Digital Signal Processor), and performs various signal processing on the audio content input to the audio processing unit 103. For example, audio content received by the communication unit 102 is input to the audio processing unit 103. The audio processing unit 103 performs, for example, an FFT (Fast Fourier Transform) process, a digital filtering process, a deinterleave process, a decode process, a level control process, and a digital signal subjected to these processes on the input audio content. Performs DAC (Digital to Analog Converter) processing to convert analog signals.

  The amplifier 104 amplifies the audio content processed by the audio processing unit 103 with a predetermined amplification factor. The amplifier 104 may be configured by a digital amplifier. Audio content amplified by the amplifier 104 is reproduced from the speaker 105.

  The illumination device 110 includes a light emitting unit 111 and a light emission control unit 112, for example. The light emitting unit 111 includes, for example, an LED (Light Emitting Diode) and a nightlight. The light emission control unit 112 operates based on the control of the control unit 101, and controls the switching of the brightness of the LED and the turning on and off of the nightlight.

  For example, the light emission control unit 112 adjusts the brightness of the LED by controlling a direct current flowing through the LED. The brightness of the LED may be adjusted by turning on or off the current flowing through the LED at a constant frequency and controlling the ratio of the on period. These functions of the light emission control unit 112 may be incorporated in the control unit 101. The brightness of the light emitting unit 111 is defined in units of lumens (lm), for example. The brightness of the light emitting unit 111 may be defined by other known contents.

  For example, the light-emitting unit 111 can be in any state of a full-light state, a light-off state, a state where only the nightlight is lit, and a light control state. The all-light state is a state in which the LED is lit at a brightness of 100 percent (%). The off state is a state where both the LED and the nightlight are turned off. The dimming state is a state in which the brightness of the LED can be varied. For example, the brightness of the LED can be changed step by step in 10% steps. In the state where only the nightlight is lit, the LED is turned off. Although details will be described later, any state can be set using the mobile terminal 300.

  In addition, the light emission part 111 is not restricted to LED, A fluorescent lamp etc. may be sufficient. The light emission control unit 112 may have an inverter circuit for controlling the brightness and the like of the fluorescent lamp.

  The imaging device 120 includes, for example, an imaging unit 121 and an image processing unit 122. The imaging unit 121 includes, for example, a lens for imaging a subject, an imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), a mechanism for driving the imaging element to a predetermined position, a mechanism for adjusting a diaphragm, a focus A mechanism for adjusting zoom, a mechanism for adjusting zoom, a mechanism for correcting camera shake, and the like. For example, the control unit 101 controls the lens, the image sensor, and each mechanism. The frame rate of the imaging device 120 is, for example, 60 f / s (frame per second).

  The image processing unit 122 includes, for example, an analog signal processing unit, an A / D (Analog to Digital) conversion unit, and a digital signal processing unit. The analog signal processing unit performs CDS (Correlated Double Sampling) processing on the analog image signal obtained by the photoelectric conversion function of the image sensor to improve the S / N ratio (Signal to Noise Ratio), and AGC (Automatic Gain). Control) process to control the gain. The analog image signal subjected to the analog signal processing is converted into a digital image signal by the A / D converter. A digital image signal is supplied to the digital signal processing unit. The digital signal processing unit performs camera signal processing such as demosaic processing, AF (Auto Focus), AE (Auto Exposure), and AWB (Auto White Balance) on the digital image signal. An image signal that has been processed by the image processing unit 122 is supplied to the control unit 101.

"Example of operation of playback device"
An example of the operation of the playback apparatus 100 will be described. Audio content transmitted from the home server 200 is received by the communication unit 102. The received audio content is supplied to the audio processing unit 103. A predetermined process is performed on the audio content by the audio processing unit 103, and the processed audio content is supplied to the amplifier 104. An example of the predetermined process is as described above. The audio content processed by the audio processing unit 103 is amplified by the amplifier 104 and reproduced from the speaker 105.

  The playback mode of the audio content is changed using the mobile terminal 300. For example, the playback volume and frequency characteristics of the audio content are changed. A control signal corresponding to an operation using the mobile terminal 300 is generated. The generated control signal is transmitted from the mobile terminal 300. The control signal to be transmitted is received by the communication unit 102 of the playback device 100. The received control signal is supplied from the communication unit 102 to the control unit 101. The control unit 101 changes the set value of the audio processing unit 103 according to the supplied control signal, and changes the playback volume and frequency characteristics of the audio content.

  Next, an example of the operation of the lighting device 110 will be described. Under the control of the light emission control unit 112, the light emission unit 111 emits light with a predetermined brightness. The light emission control unit 112 operates according to control by the control unit 101. The case where the light emission part 111 is LED is demonstrated. A control signal for causing the light emitting unit 111 to emit light with a predetermined brightness is supplied from the control unit 101 to the light emission control unit 112. The light emission control unit 112 controls the value of the direct current of the LED based on the control signal, and controls the LED so that the brightness indicated by the control signal is obtained. When a control signal for turning on the nightlight is supplied, the light emission control unit 112 performs control to turn off the LED and turn on the nightlight. Note that the brightness of the light emitting unit 111 is changed using the mobile terminal 300, for example.

  Next, an example of the operation of the imaging device 120 will be described. For example, the imaging unit 121 of the imaging device 120 can capture images in all directions of 360 degrees. A range (referred to as an imaging range as appropriate) captured by the imaging unit 121 can be set by the user. For example, a range including the position where the bed is installed in the room is set as the imaging range.

  An image signal that is a captured image captured by the imaging unit 121 is supplied to the image processing unit 122. Image processing is performed on the image signal by the image processing unit 122, and the image signal subjected to the image processing is supplied to the control unit 101. An example of image processing is as described above.

  The control unit 101 compares the above-described pattern with the image signal, and determines whether or not a user who is a person exists in the bed. The process of comparing the pattern and the image signal is performed for each frame, for example. In order to reduce the load on the control unit 101, processing for thinning out frames and comparing a pattern and an image signal may be performed. When the image signal includes a pattern, the control unit 101 determines that a person is detected on the bed and the user is on the bed. Note that the image processing unit 122 may perform processing for determining whether there is a user on the bed.

  An example of the operation of each device in the process of automatically controlling the playback volume of the audio content being played back (referred to as volume automatic control process as appropriate) will be described.

  The playback device 100 performs a process of playing back audio content, and the audio content is played back from the speaker 105. The range including the bed position is imaged by the imaging device 120, and the image signal obtained by the imaging is processed by the image processing unit 122. The processed image signal is supplied from the image processing unit 122 to the control unit 101.

  During the reproduction of the audio content, an operation for making the brightness of the light emitting unit 111 of the lighting device 110 smaller than a predetermined brightness is performed using the portable terminal 300. For example, an operation of turning off the light emitting unit 111 is performed. A control signal for turning off the light emitting unit 111 is generated according to the operation, and the generated control signal is transmitted from the mobile terminal 300. The control signal is received by the communication unit 102 and the control signal is supplied to the control unit 101.

  The control unit 101 analyzes the image signal supplied from the image processing unit 122 and determines whether there is a person (user) on the bed. When the image signal includes a pattern, the control unit 101 determines that the user is on the bed.

  Since an instruction to turn off the light emitting unit 111 is given and the user is in the bed, the control unit 101 determines that the user goes to bed. Then, the control unit 101 changes the playback mode of the audio content. For example, the control unit 101 controls the audio processing unit 103 to mute the reproduction volume of the audio content being reproduced.

  The control unit 101 controls the light emission control unit 112 according to a control signal for turning off the light emission unit 111. The light emission control unit 112 operates based on the control of the control unit 101. For example, the light emission control unit 112 controls the value of the current flowing through the LED, whereby the light emission unit 11 is turned off. The light emitting unit 111 is turned off, and the playback volume of the audio content is automatically muted. The user can go to sleep in a quiet environment without performing an operation to stop reproduction of the audio content.

"Example of home server configuration"
FIG. 4 shows an example of the configuration of the home server 200. The home server 200 includes, for example, a control unit 201, a database 202, and a communication unit 203. The control unit 201 is constituted by a CPU, for example, and controls each unit of the home server 200. Examples of processing executed by the control unit 201 include processing for reading predetermined audio content from the database 202 and processing for modulating audio content.

  The database 202 is composed of a large-capacity hard disk device, for example. The database 202 stores a plurality of audio contents. For example, audio contents ripped from a CD (Compact Disk) may be newly added to the database 202.

  The communication unit 203 communicates with the communication unit 102 of the playback device 100, for example. Further, the communication unit 203 receives a control signal transmitted from the mobile terminal 300. The control signal transmitted from the portable terminal 300 is, for example, a control signal for selecting audio content to be played back.

"Example of home server operation"
An example of the operation of the home server 200 will be described. For example, an operation for selecting audio content to be played is performed on the mobile terminal 300. A control signal generated according to the operation is transmitted from the portable terminal 300. A control signal is received by the communication unit 203. A control signal is supplied from the communication unit 203 to the control unit 201. The control unit 201 reads audio content indicated by the control signal from the database 202.

  The control unit 201 performs processing such as modulation processing on the audio content read from the database 202. The audio content subjected to modulation processing or the like by the control unit 201 is transmitted from the communication unit 203 to the playback device 100. Audio content is received by the communication unit 102, and the audio content is played back on the playback device 100.

  Note that a list of audio contents stored in the database 202 may be generated by the control unit 201 and the list may be transmitted to the mobile terminal 300. The list may be displayed on the display unit of the mobile terminal 300. A plurality of audio contents and a playlist that defines the playback order of these audio contents may be transmitted from the mobile terminal 300 to the home server 200. The control unit 201 may read out and reproduce the audio contents designated by the playlist in the order designated by the playlist.

"Example of mobile terminal configuration"
The portable terminal 300 includes, for example, a control unit 301, a display unit 302a, a memory 303, a communication unit 304, an audio processing unit 305, an amplifier 306, and a speaker 307. The display unit 302a is configured as a touch panel 302b capable of operating the display unit 302a.

  The control unit 301 includes, for example, a CPU, and controls each unit of the mobile terminal 300. For example, the control unit 301 generates a control signal in response to an operation on the touch panel 302b. A control signal generated by the control unit 301 is transmitted to the playback device 100, the home server 200, and the like.

  The display unit 302a includes a display panel such as an LCD (Liquid Crystal Display) or an organic EL (Electroluminescence), and a display driver for driving the display panel. For example, a screen for operating various electronic devices is displayed on the display unit 302a. For example, a screen for adjusting the brightness of the lighting device 110, a screen for changing the playback mode of the audio content, and the like are displayed. A screen that can be operated as the touch panel 302b is appropriately referred to as an operation screen.

  The memory 303 is composed of, for example, a nonvolatile memory. A program executed by the control unit 301 may be stored in the memory 303. The memory 303 may be used as a work memory for the control unit 301. The memory 303 may be a memory that is detachable from the portable terminal 300.

  Audio content is stored in the memory 303. The audio content stored in the memory 303 is supplied to the audio processing unit 305. The audio content is subjected to predetermined signal processing by the audio processing unit 305, and the processed audio content is supplied to the amplifier 306.

  The communication unit 304 communicates with other devices. For example, the mobile terminal 300 connects to a network such as the Internet via the communication unit 304. Audio content supplied from a server device on the network is received by the communication unit 304. Audio content received by the communication unit 304 is supplied to the audio processing unit 305. A communication function may be realized by the communication unit 304.

  A control signal for another device is transmitted from the communication unit 304. For example, a control signal for controlling the brightness of the lighting device 110 is transmitted from the communication unit 304. For example, a control signal for instructing audio content to be played is transmitted from the communication unit 304.

  The audio processing unit 305 performs various signal processing on the audio content input to the audio processing unit 305. For example, audio content stored in the memory 303 is input to the audio processing unit 305. The audio processing unit 305 performs, for example, FFT processing, digital filtering processing, deinterleaving processing, decoding processing, level control processing, and DAC processing for converting a digital signal subjected to these processing into an analog signal on the audio content. And so on. Note that the audio processing unit 305 may perform so-called streaming playback processing for playing back audio content received by the communication unit 304 in real time.

  The amplifier 306 amplifies the audio content supplied from the audio processing unit 305 with a predetermined amplification factor. The amplifier 306 may be configured by a digital amplifier. Audio content amplified by the amplifier 306 is reproduced from the speaker 307. The mobile terminal 300 may be configured to have other functions such as an imaging function.

"Example of mobile terminal operation"
An example of the operation of the mobile terminal 300 will be described. A plurality of electronic devices can be controlled using the mobile terminal 300. For example, a specific application published on the network is downloaded via the communication unit 304. By executing the downloaded application, an operation screen for operating a plurality of electronic devices can be displayed on the display unit 302a.

  A predetermined operation is performed on the touch panel 302b. An operation signal corresponding to the operation is generated, and the operation signal is supplied from the touch panel 302b to the control unit 301. The control unit 301 generates a control signal corresponding to the operation signal. The control unit 301 modulates the control signal by a predetermined method and supplies the modulated control signal to the communication unit 304. A control signal is transmitted from the communication unit 304.

  In the header of the control signal transmitted from the mobile terminal 300, for example, an ID (Identification) assigned to each electronic device is described. Each electronic device that receives the control signal can determine whether there is a control signal for itself by analyzing the ID described in the header. Further, the control unit 101 of the playback apparatus 100 can identify which electronic device is the control signal for controlling by analyzing the ID described in the header.

"Operation screen display examples"
An example of the operation screen displayed on the display unit 302a of the mobile terminal 300 will be described. FIG. 6 is an example of an operation screen for selecting a device to be controlled (hereinafter, this operation screen is appropriately referred to as a menu screen). On the display unit 302a, for example, an icon 31a for operating the lighting device 110, an icon 31b for operating the playback device 100,
An icon 31c for performing settings on the imaging device 120, an icon 31d for performing operations on the air conditioner device, an icon 31e for performing operations on the television device, and an Internet radio device that transmits and receives via the Internet. An icon 31f for operation is displayed.

  When any icon is touched, the operation screen changes to an operation screen for controlling the electronic device indicated by the icon. FIG. 7 shows an example of an operation screen that is displayed when, for example, an operation of touching the icon 31a is performed. The icon 31a indicates illumination as a device to be controlled. For this reason, when the icon 31a is touched, an operation screen for controlling the illumination device 110 is displayed.

  As an operation screen for controlling the lighting device 110, a plurality of icons are displayed on the display unit 302a. As a plurality of icons, an icon 32a for displaying a menu screen, an icon 32b for bringing the light emitting unit 111 into a full lighting state, an icon 32c for turning the light emitting unit 111 into a dimming state, and a night light are turned on. An icon 32d for the purpose and an icon 32e for turning off the light emitting unit 11 are exemplified. Further, an icon 32f and an icon 32g for adjusting the brightness of the light emitting unit 111 in stages are displayed on the display unit 302a. When the icon 32f is touched, the light emitting unit 111 becomes dark. When the icon 32g is touched, the light emitting unit 111 becomes brighter.

  FIG. 8 shows an example of an operation screen that is displayed when an operation of touching the icon 31b on the menu screen is performed. The icon 31b shows music as a control target. For this reason, when the icon 31b is touched, an operation screen for controlling reproduction of audio content and the like is displayed.

  A plurality of icons are displayed on the display unit 302a as an operation screen for controlling reproduction or the like of audio content. As a plurality of icons, an icon 33a for displaying a menu screen, an audio content list 33b, an icon 33c for instructing reproduction of the audio content, and an audio content next to the audio content being reproduced are reproduced. Icon 33d, an icon 33e for playing back the audio content immediately before the audio content being played back, an icon 33f for increasing the playback volume (referred to as volume) of the audio content, and the audio content An icon 33g for reducing the playback volume is exemplified.

  The list 33b is a list of audio contents stored in the home server 200. A list of audio contents stored in the memory 303 of the mobile terminal 300 may be used. The list 33b is transmitted from the home server 200 to the mobile terminal 300, for example. In the list 33b, for example, the names of six songs (AAA, BBB... FFF) are displayed. When an operation (also referred to as a drag operation) for moving the list 33b upward or downward toward the drawing is performed, the list 33b scrolls and other song names are displayed.

  By touching any song name in the list 33b, the audio content of that song name is selected. When the icon 33c is touched, a control signal including an audio content identification ID and a playback instruction is transmitted to the home server 200. In the home server 200, the audio content corresponding to the identification ID is read, and the audio content is transmitted to the playback device 100. Audio content is played back on the playback device 100.

  Note that the audio content corresponding to the song title may be played back in response to an operation of touching the song title twice (also referred to as a double tap operation). Furthermore, instead of an operation of selecting individual song names, a playlist may be selected. The audio content may be read from the home server 200 according to the play list, and the audio content may be continuously reproduced according to the play list.

  In addition to this, for example, the playback volume of the audio content can be changed by touching the icon 33f or the icon 33g. The portable terminal 300 may be used to specify a playback device other than the playback device 100.

  When an operation of touching the icon 31c on the menu screen is performed, a screen for setting a range captured by the imaging device 120 is displayed. For example, a screen for designating any one of the center of the room and the corner of the room is displayed. The user designates a position including the position where the bed is installed.

  The range imaged by the imaging device 120 may be set by other methods. For example, the range including the position where the bed is installed is imaged by the imaging function of the mobile terminal 300. The captured image is transmitted to the communication unit 102. The control unit 101 switches the imaging range of the imaging unit 121 as appropriate, and compares the captured image obtained by imaging with the captured image transmitted from the mobile terminal 300. As a result of the comparison, the range when the captured images are most similar may be set as the imaging range captured by the imaging unit 121. Furthermore, the captured image for each predetermined range captured by the imaging device 120 is transmitted to the mobile terminal 300, and the captured range is set by the user selecting a captured image at a position including the bed among the captured images. You may be made to do.

  Since the imaging device 120 is configured as a device capable of imaging in all directions and the imaging range can be set, only the range including the position of the bedding such as a bed can be captured. Furthermore, since the imaging device 120 can image all directions, the user can freely determine the position where the bed is installed. Since the range including the position of the bed can be reliably imaged, it is not necessary to provide a sensor or the like for detecting the user on the bed.

"Example of processing flow"
FIG. 9 is a flowchart illustrating an example of the flow of the volume automatic control process. In step S1, a process of reproducing audio content is performed. For example, an audio content to be played back is selected, and an operation for selecting the playback device 100 as a playback device is performed using the mobile terminal 300. Then, the home server 200 is instructed to reproduce the audio content.

  In the home server 200, the audio content selected by the mobile terminal 300 is read. Audio content is transmitted from the home server 200 to the playback device 100. Audio content is received by the communication unit 102. The received audio content is supplied to the audio processing unit 103. The audio content processed by the audio processing unit 103 is amplified by the amplifier 104, and the amplified audio content is reproduced from the speaker 105. Then, the process proceeds to step S2.

  In step S <b> 2, for example, the control unit 101 determines whether there is a control request for turning off the light emitting unit 111 of the lighting device 110. For example, when an operation of touching the icon 32e on the operation screen illustrated in FIG. 7 is performed, a control signal including an ID indicating the lighting device 110 as a control target and a predetermined bit string for turning off the light is transmitted from the mobile terminal 300. The The control unit 101 can determine whether or not there is a control request to turn off the light emitting unit 111 by monitoring the presence or absence of this control signal. If there is no control request to turn off the light emitting unit 111, the process returns to step S2. Then, the determination process in step S2 is repeated.

  If there is a control request to turn off the light emitting unit 111, the process proceeds to step S3. In step S <b> 3, the control unit 101 analyzes the image signal supplied from the image processing unit 122. The image signal is a captured image obtained by capturing the position including the bed by the image capturing unit 121. Then, the process proceeds to step S4.

  In step S4, the control unit 101 determines whether there is a user on the bed. For example, the control unit 101 holds an image of the user lying on the bed as a pattern, and determines that the user is on the bed when this pattern is included in the image signal. If it is determined that the user is not in bed, the process proceeds to step S6.

  In step S6, the control unit 101 controls the light emission control unit 112 according to a control signal for turning off the illumination. The light emission control unit 112 operates based on control by the control unit 101 and turns off the light emission unit 111. At this time, the reproduction mode of the audio content being reproduced is not changed. That is, since the user is not in bed, the user determines to listen to the audio content in the dark. Therefore, the playback mode of the audio content is not changed. Then, the process ends.

  If it is determined in step S4 that the user is in bed, the process proceeds to step S5. In step S5, the reproduction volume of the audio content being reproduced is muted. That is, the control unit 101 determines that the user goes to bed because the illumination is turned off and the user is in the bed. The control unit 101 controls the audio processing unit 103 to mute the playback volume of the audio content being played back. And a process progresses to step S6 and the light emission part 111 is light-extinguished. Thus, when the user goes to bed, the playback volume of the audio content being played can be automatically muted.

<2. Modification>
Although a plurality of embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and various modifications can be made.

  The appearance of the playback device or the like can be changed as appropriate. For example, the shape shown in FIG. A playback device 400, an illumination device 500, and an imaging device 600 are erected from the ceiling 40 toward the room. The playback device 400 and the lighting device 500 are integrally configured. An imaging device 600 is erected in the vicinity of the reproduction device 400 and the illumination device 500.

  The playback device 400 includes a receiver 401, a speaker 402, and a speaker cover 403. In FIG. 10, the speaker cover 403 is indicated by a dotted line in order to distinguish it from a light-transmissive casing 502 described later. The receiver 401 has functions of the communication unit 102, the audio processing unit 103, and the amplifier 104. That is, audio content transmitted from a home server or the like is received by the receiver 401, and the receiver 401 performs predetermined signal processing on the audio content. The processed audio content is amplified. Audio content is played from the speaker 402.

  The lighting device 500 includes a light bulb 501 and a light-transmissive casing 502. The casing 502 is, for example, a shape that becomes wider in the direction toward the room. A light bulb 501 is housed inside the housing 502. Furthermore, a receiver 401 and a speaker 402 are housed inside the housing 502.

  An imaging device 600 is installed at a location close to the playback device 400 or the like. The imaging device 600 includes an imaging unit 601 and a housing 602 that stands from the ceiling 40. An imaging unit 601 is attached to the tip of the housing 602. The imaging unit 601 is capable of imaging in all directions, for example. You may enable it to set the range which the imaging device 600 images. A control unit or the like for controlling these devices is housed in the ceiling 40. Wireless communication is performed between the control unit and the receiver 401. In this way, the appearance of the playback device and the like can be changed as appropriate.

  The embodiment described above can be further modified as follows.

  In the above-described embodiment, the control signal for turning off the lighting device 110 is exemplified as the control signal for making the brightness of the lighting device 110 smaller than the predetermined brightness. However, the control signal is not limited to this. For example, the control signal for making the brightness of the lighting device 110 smaller than a predetermined brightness may be a control signal for turning on the nightlight. Further, when the light emitting unit 111 of the lighting device 110 is in a dimming state, it may be a control signal for making the brightness of the light emitting unit 111 smaller than a threshold value.

  In the above-described embodiment, the device configuring the system 1 has been described as a device corresponding to DLNA. However, the present invention is not limited to this. For example, audio content may be transmitted from the home server 200 to the playback apparatus 100 by Bluetooth (registered trademark) or Wi-Fi (registered trademark). Furthermore, audio content may be transmitted from the mobile terminal 300 to the playback device 100.

  When the playback volume of the audio content is muted, the playback volume may be gradually reduced. Furthermore, audio content suitable for going to bed may be played. Furthermore, not only the reproduction volume but also the reproduction mode of the audio content may be changed and the volume may be gradually reduced so that the frequency characteristic is suitable for sleeping.

  The timing at which the imaging apparatus 120 operates may be changed by the control unit 101. For example, when audio content is played, power may be supplied to the imaging device 120 and the imaging device 120 may be activated. Further, when the brightness of the illumination device 110 is made lower than the predetermined brightness, the control unit 101 performs a process of analyzing the captured image, and in other cases, the captured image is discarded. Also good. Since it is not necessary to always start the imaging device 120, it is possible to realize power saving and reduce the load on the control unit 101.

  The imaging device 120 may be an infrared camera that can capture images even in the dark. For example, imaging by the imaging device 120 may be performed after the illumination is turned off.

  In addition to the apparatus, the present disclosure can be realized by a method, a program, a recording medium on which the program is recorded, and the like. Note that the configurations and processes in the embodiments and the modifications can be appropriately changed and combined as long as no technical contradiction occurs. The illustrated processing may be performed in parallel. For example, the process for determining whether or not there is a control request for turning off the illumination and the process for analyzing the captured image and determining whether or not the user is in the bed may be performed in parallel.

  Furthermore, the present disclosure can be applied to a so-called cloud system in which the exemplified processing is distributed and processed by a plurality of devices. For example, the present disclosure may be realized as a system that executes all of the exemplified processes and that performs a part of the processes.

This indication can also take the following composition.
(1)
A content playback unit for playing back content,
A control unit for controlling the reproduction mode of the content,
When a control signal for making the brightness of the lighting device smaller than a predetermined brightness is input to the control unit and a person is detected within a predetermined range, the control unit reproduces the brightness by the content reproduction unit. A playback device for changing the playback mode of content in the content.
(2)
The content is audio content;
The playback device according to (1), wherein the control unit changes the playback mode of the audio content by reducing the playback volume of the audio content at least.
(3)
The playback device according to (1) or (2), wherein the content playback unit, the control unit, the illumination device, and an imaging device that captures the predetermined range are integrally configured.
(4)
The reproduction device according to (3), wherein the predetermined range is imaged by the imaging device when content reproduction is performed by the content reproduction unit.
(5)
The reproducing apparatus according to any one of (1) to (4), wherein the predetermined range can be set.
(6)
The reproduction apparatus according to any one of (1) to (5), wherein the predetermined range is a range including a position where a bedding is installed.
(7)
The reproduction apparatus according to any one of (1) to (6), wherein the content reproduction unit reproduces content supplied via a network.
(8)
When a control signal for making the brightness of the lighting device smaller than a predetermined brightness is input to the control unit and a person is detected within a predetermined range, the control unit reproduces the content being reproduced. A reproduction method in a reproduction apparatus including the control unit, which changes

DESCRIPTION OF SYMBOLS 1 ... System 100 ... Playback apparatus 101 ... Control part 103 ... Audio processing part 104 ... Amplifier 105 ... Speaker 110 ... Illumination device 111 ... Light emission part 120 ... Imaging device 200 ... home server 300 ... mobile terminal

Claims (7)

A content playback unit for playing back content,
A control unit for controlling the reproduction mode of the content ;
An imaging unit that images a set predetermined range ,
When a control signal for making the brightness of the illumination unit smaller than a predetermined brightness is input to the control unit and a person is detected in the predetermined range imaged by the imaging unit , the control unit A playback apparatus for changing the playback mode of the content being played back by the content playback unit. The content is audio content;
The playback device according to claim 1, wherein the control unit changes a playback mode of the audio content by reducing a playback volume of the audio content. And the content reproduction unit, and the control unit, the lighting unit, and a front SL imaging section is reproducing apparatus according to claim 1 or 2 configured integrally. When the reproduction of the content is performed by the content reproduction unit, the reproduction apparatus according to any one of claims 1 to 3 before Kihan circumference is imaged by the imaging unit. The reproducing apparatus according to claim 1, comprising the illumination unit. The content reproduction unit, the reproducing apparatus according to any one of claims 1 to 5 for reproducing the content supplied through the network. Control unit, the brightness of the illumination unit, when the control signal for less than a predetermined brightness is input, and is imaged by the imaging unit, the person is detected within a prescribed range set, before A reproduction method for changing a reproduction mode of content being reproduced by the content reproduction unit.

Images