JP5302876B2 - Video display device, detection state presentation method, program, and recording medium - Google Patents

Description

  The present invention relates to a video display device including a human sensor, and more particularly to a television receiver including a human sensor.

  In recent years, the size of television receivers (TVs) has been increasing, and televisions that can be viewed from far away places have become widespread. Large TVs are often installed in large areas such as living rooms.

  When watching TV during the day, it often happens that the user leaves the TV, for example, in a room that is different from the room where the TV is set or in the vicinity. In this case, the user often watches the TV again as soon as work is completed, so the user often leaves the TV with the TV on. On the other hand, when watching television at night, for example, when leaving the television for sleeping, it is common to turn off the television and leave in front of the television. However, if you fall asleep while watching TV, or if you forgot to turn off the TV and went to bed, the TV stays on even though the user is not watching TV. turn into.

  Thus, maintaining the state where the TV is on (that is, the state where the TV is outputting video) even though the user is not watching the TV consumes power wastefully. As a result, it imposes an economic burden on the user. Moreover, it is not preferable to consume wasteful power from the viewpoint of environmental considerations.

  For example, Patent Literatures 1 to 3 and Non-Patent Literature 1 disclose techniques for reducing power consumption when a user is not watching a television. More specifically, Patent Documents 1 to 3 and Non-Patent Document 1 disclose techniques for reducing power consumption by detecting the presence or absence of a user. That is, Patent Document 1 discloses a technique of automatically turning on a TV when it is determined that a room has become brighter than a certain threshold value and there is a viewer at that time. Yes. Patent Document 2 discloses a technique of automatically turning off the TV when the viewer is at a short distance from the TV screen or when the room is dark. Patent Document 3 discloses a technique in which a television is automatically turned off when a viewer leaves the television for a predetermined time or more without turning off the television.

  Further, in Non-Patent Document 1, when the viewer leaves the front of the TV for a certain period of time without turning off the TV, only the sound is output by automatically turning off the screen display. A technique for making a state is disclosed. In addition, if the viewer returns within a certain time, the display will turn on again, and if the viewer does not return within a certain time, the TV will automatically turn off. This technique is also disclosed. Also disclosed is a technique of automatically adjusting the brightness of a television screen according to the brightness of a room.

JP 2008-252526 A (released on October 16, 2008) JP 2004-120049 A (released on April 15, 2004) JP-A-6-78246 (published March 18, 1994)

[Online], Sony (searched on November 13, 2009), Internet <http://www.sony.jp/bravia/shoene/index02.html>

  However, in the apparatus provided with the human (thermal) sensor that detects the presence or absence of the user disclosed in Patent Documents 1 to 3, whether or not the apparatus is detected by the human (thermal) sensor (that is, The user cannot check in real time whether or not the user is within the detection range of the human sensor (heat) sensor. Further, even with the device disclosed in Non-Patent Document 1, although the time until the screen display is turned off can be shortened, the human body (heat) sensor itself until the time elapses. Since it is not possible to confirm whether or not it has been detected by the human (heat) sensor, it cannot be confirmed in real time.

  In this way, if it is not possible to confirm whether or not the user is detected by the human (thermal) sensor in real time, for example, the demerits such as delay in noticing the problem of the human (thermal) sensor, etc. Will occur.

  The present invention has been made in view of the above problems, and a main object of the present invention is to provide a video display device capable of grasping in real time whether or not the user is within the detection range of the human sensor. is there.

  In order to solve the above problems, the video display device according to the present invention is a video display device provided with a human sensor, and when the presence of a viewer is not recognized within the detection range of the human sensor. In a video display device that operates in an operation mode with reduced power consumption compared to the case where the presence of a viewer is recognized, the video display device is operated in an operation confirmation mode for confirming the operation of the human sensor. A presentation means for immediately presenting to the viewer information indicating whether the presence of the viewer is recognized within the detection range of the motion sensor based on a signal output from the motion sensor. It is characterized by having.

  In the video display device according to the present invention, when the video display device is operated in the operation check mode, information indicating whether or not the viewer is present within the detection range of the human sensor is displayed to the viewer. Present immediately.

  Thus, in the video display device according to the present invention, since the information indicating whether or not the viewer is within the detection range of the human sensor is immediately presented to the viewer, the viewer himself / herself is the human sensor. There exists an effect which can grasp | ascertain in real time whether it exists in the detection range.

  The “viewer” in this specification and the like is not limited to the person who is actually watching the video displayed on the video display device and the sound output from the video display device. This refers to all persons existing within the detection range of the human sensor provided in the apparatus.

  In the video display device according to the present invention, further, the presenting means, when the presence of a viewer is recognized within the detection range of the human sensor, indicates a notification video indicating that the human sensor has detected the viewer. Is preferably displayed.

  According to said structure, when a viewer exists in the detection range of a human sensitive sensor, the notification image | video which shows being present is displayed. Thus, the viewer can easily and surely understand that he / she is within the detection range of the human sensor.

  In the video display device according to the present invention, the presentation means further indicates that the presence sensor is not detected by the presence sensor when the presence of the viewer is not recognized within the detection range of the presence sensor. It is preferable to display an image.

  According to said structure, the notification image | video which shows that a viewer is not in the case where it is not in the detection range of a human sensitive sensor is displayed. Thus, the viewer can easily and reliably grasp that he / she is not within the detection range of the human sensor.

  In the video display device according to the present invention, it is preferable that the notification video is a moving image.

  According to said structure, the notification image | video of the moving image which shows whether a viewer is in the detection range of a human sensitive sensor is displayed. Thus, the viewer can easily and reliably grasp whether or not the viewer is within the detection range of the human sensor.

  In the video display device according to the present invention, the display means may notify the notification according to the distance between the human sensor and the viewer when the presence of the viewer is recognized within the detection range of the human sensor. It is preferable to display the image with a different size.

  According to said structure, the notification image from which a magnitude | size differs according to the distance of a human sensitive sensor and a viewer is displayed. For example, when the distance between the human sensor and the user is short, the video is displayed large, and when the distance is long, the video is displayed small. Thus, the viewer can easily and reliably grasp the distance between the viewer and the human sensor within the detection range of the human sensor.

  The presenting means displays a notification video indicating that the human sensor has not detected a viewer until a predetermined time has elapsed since the start of power supply to the human sensor. It is preferable to do.

  According to said structure, the notification image | video which shows that the detection of a viewer is not performed can be displayed when operation | movement of a human sensitive sensor is unstable. Thus, the viewer can easily and reliably grasp whether or not the human sensor is detecting.

  The video display device according to the present invention further includes program video generation means for generating a program video based on the received broadcast wave, and the notification means generates the notification video in the program video generation means. It is preferable to superimpose and display on the program video.

  According to said structure, the program image | video and the notification image | video which notifies whether it exists in the detection range of a human sensitive sensor will be displayed simultaneously.

  As a result, the viewer can see whether or not he / she is within the detection range of the human sensor while viewing the program video.

  In the video display device according to the present invention, further, the presenting means, when the presence of the viewer is recognized within the detection range of the human sensor, indicates the notification sound indicating that the human sensor has detected the viewer. Is preferably output.

  According to said structure, when a viewer exists in the detection range of a human sensitive sensor, the audio | voice which shows that it exists is output.

  Thus, even if the viewer is in a state where he / she cannot confirm the video, the viewer can grasp that he / she is within the detection range of the human sensor.

  In the video display device according to the present invention, the presentation means further indicates that the presence sensor is not detected by the presence sensor when the presence of the viewer is not recognized within the detection range of the presence sensor. It is preferable to output sound.

  According to said structure, the audio | voice which shows that it does not exist is output when a viewer is not in the detection range of a human sensitive sensor.

  Thus, even if the viewer is in a state where he / she cannot confirm the video, the viewer can grasp that he / she is not within the detection range of the human sensor.

  The presenting means outputs a notification sound indicating that no viewer is detected by the human sensor until a predetermined time elapses after power supply to the human sensor is started. It is preferable to do.

  According to said structure, the notification image | video which shows that the detection of a viewer is not performed can be displayed when operation | movement of a human sensitive sensor is unstable. Thus, the viewer can easily and reliably grasp whether or not the human sensor is detecting.

  In the video display device according to the present invention, it is preferable that the human sensor is a pyroelectric infrared sensor.

  In the detection state notification method according to the present invention, in order to solve the above-described problem, the video display device includes a human sensor, and the presence of a viewer is not recognized within the detection range of the human sensor. In the detection state notification method in the video display device that operates in the operation mode with reduced power consumption compared to the case where the presence of the viewer is recognized, the video display is performed by the operation confirmation mode in which the operation of the human sensor is confirmed. When operating the device, based on the signal output from the human sensor, information indicating whether or not the viewer is present within the detection range of the human sensor is immediately presented to the viewer It is characterized by including a presentation step.

  According to said structure, there exists an effect similar to the video display apparatus concerning this invention.

  Note that a program for operating the video display apparatus according to the present invention, which is a program that causes a computer to function as each of the above-described means, and a computer-readable recording medium on which these programs are recorded, are also included in the present invention. Included in the category.

  In the video display device according to the present invention, when the video display device is operated in the operation check mode, information indicating whether or not the viewer is present within the detection range of the human sensor is displayed to the viewer. Present immediately.

  Thus, in the video display device according to the present invention, since the information indicating whether or not the viewer is within the detection range of the human sensor is immediately presented to the viewer, the viewer himself / herself is the human sensor. There exists an effect which can grasp | ascertain in real time whether it exists in the detection range.

It is a block diagram which shows the principal part structure of the control part in the television receiver which concerns on embodiment. It is a block diagram which shows the principal part structure of the television receiver which concerns on embodiment. It is a figure which shows an example of the image | video which notifies whether a human sensor (heat | fever) sensor has detected the user, (a) shows the state which has detected the presence of a user, (b) has the presence of a user This indicates a state where no is detected. It is a figure which shows the other example of the image | video which notifies whether a human sensor (heat) sensor is detecting, (a) shows the state which has detected the presence of a user, (b) is a user This indicates a state in which the presence of is not detected. It is a figure which shows the further another example of the image | video which notifies whether the human sensor (heat) sensor is detecting the user. It is a figure which shows the further another example of the image | video which notifies whether a human sensor (heat | fever) sensor is detecting the user, (a) shows the state which has detected the presence of a user, (b) Indicates that no user is detected. It is a figure which shows an example of the image | video which notifies that a human sensor (heat) sensor is preparing.

  An embodiment of a video display device according to the present invention will be described below with reference to FIGS. 1 to 6A and 6B. In the present embodiment, a case where the video display device is a television receiver will be described as an example.

  The television receiver according to the present embodiment operates in an operation confirmation mode in which the user can confirm whether or not the human (thermal) sensor is operating in addition to the viewing mode for viewing a broadcast program. Can be made. The operation process in the operation confirmation mode will be described in detail below. The viewing mode operation process for viewing a broadcast program is a conventionally known operation process, and thus detailed description thereof is omitted in this embodiment.

  Note that the switching between the viewing mode and the operation confirmation mode is preferably realized by a user operation via the operation input device.

(Configuration of display device)
First, prior to describing the details of the detection state notification processing by the human (thermal) sensor, the configuration of the television receiver including the human (thermal) sensor will be described below with reference to FIG. FIG. 2 is a block diagram showing a configuration of the television receiver 10 (hereinafter also referred to as the television 10).

  For example, as shown in FIG. 2, the television 10 includes a memory 7, an analog tuner unit 12, a digital tuner unit 14, a digital demodulation unit 15, a separation unit 16, a video decoding unit 17, a video selector unit 18, a video processing unit 19, Display control unit 21, liquid crystal display device 22, IP broadcast tuner unit 23, EPG / OSD processing unit 24, audio decoding unit 25, audio selector unit 26, audio output conversion unit 27, speaker 28, external input unit 31, recording / playback The unit 32, the channel selection unit 33, the communication control unit 34, the remote control light receiving unit 35, the OPC (RGB) sensor 51, the human (thermal) sensor 52, the power supply unit 53, and the control unit 100 can be configured. The television 10 is configured to be able to connect the antenna 11, the antenna 13, and the external device 30, and can be operated by the remote controller 36.

  The analog tuner unit 12 extracts the video signal and the audio signal superimposed on the channel selected by the channel selection unit 33 from the analog broadcast signal received by the antenna 11, and supplies the extracted video signal to the video selector unit 18. At the same time, the extracted audio signal is supplied to the audio selector unit 26.

  The digital tuner unit 14 extracts a digital signal superimposed on the channel selected by the channel selection unit 33 from the digital broadcast signal received by the antenna 13 and supplies the extracted digital signal to the digital demodulation unit 15. The digital demodulation unit 15 generates stream data in a predetermined format (for example, MPEG2-TS format) from the digital signal extracted by the digital tuner unit 14 and supplies the generated stream data to the separation unit 16.

  The IP broadcast tuner unit 23 acquires stream data of the channel selected by the channel selection unit 33 from an external device (for example, a server device) connected via a network, and supplies the acquired stream data to the separation unit 16 To do. Acquisition of stream data by the IP broadcast tuner unit 23 is performed via the communication control unit 34. The network is not particularly limited. For example, a network using a telephone line, a LAN, an HDMI cable, or the like can be given.

  In addition, the external input unit 31 receives a video signal and an audio signal recorded in the external device 30 (for example, an HDD, an external memory, a BD player, a DVD player, a CD player, etc.) from the command from the control unit 100. The video data is supplied to the video selector unit 18 and the audio data is supplied to the audio selector unit 26.

  The television 10 incorporates an optical disk drive device as the recording / reproducing unit 32. The recording / playback unit 32 is connected to the external input unit 31, and the television 10 plays back the content data recorded in the recording / playback unit 32 in the same manner as playing back the content data recorded externally. can do.

  The separation unit 16 separates the stream data supplied from the digital tuner unit 14 or the IP broadcast tuner unit 23 into video data, audio data, and additional data. The video data, audio data, and additional data separated by the separation unit 16 are supplied to the video decoding unit 17, the audio decoding unit 25, and the EPG / OSD processing unit 24, respectively. The additional data separated by the separation unit 16 is also stored in the memory 7.

  The video decoding unit 17 decodes the video data separated by the separation unit 16. The video signal obtained by the video decoding unit 17 is DA-converted into an analog signal as necessary and supplied to the video selector unit 18.

  The audio decoding unit 25 decodes the audio data separated by the separation unit 16. The audio signal obtained by the audio decoding unit 25 is DA-converted into an analog signal as necessary and supplied to the audio selector unit 26.

  The EPG / OSD processing unit 24 generates a video signal representing a video to be displayed on the OSD (on-screen display) based on the additional data separated by the separation unit 16. Examples of the video displayed by OSD include EPG (electronic program guide) and subtitles. The video signal generated by the EPG / OSD processing unit 24 is supplied to the synthesis unit 20.

  In addition to the video signals from the analog tuner unit 12 and the video decoding unit 17 described above, the video selector unit 18 includes an external device 30 (for example, HDD, external memory, BD player, DVD) via the external input unit 31. A video signal output from a player or the like is supplied. Based on a command from the control unit 100, the video selector unit 18 selects a video signal to be reproduced from these video signals, and supplies the selected video signal to the video processing unit 19.

  The video processing unit 19 processes the video signal selected by the video selector unit 18. Examples of the processing here include IP conversion and frame rate conversion. The video signal processed by the video processing unit 19 is supplied to the synthesis unit 20. The synthesizing unit 20 synthesizes the video signal processed by the video processing unit 19 and the video signal generated by the EPG / OSD processing unit 24 and supplies them to the display control unit 21. The display control unit 21 drives the liquid crystal display device 22 based on the synthesized video signal.

  In addition to the audio signals from the analog tuner unit 12 and the audio decoding unit 25 described above, the audio selector unit 26 includes an external device 30 (for example, HDD, external memory, BD player, DVD) via the external input unit 31. A sound signal output from a player, a CD player, or the like is supplied. The audio selector unit 26 selects an audio signal to be reproduced from these audio signals based on an instruction from the control unit 100, and supplies the selected audio signal to the audio output conversion unit 27. The audio output conversion unit 27 amplifies the audio signal selected by the audio selector unit 26 and supplies the amplified audio signal to the speaker 28.

  The remote control light receiving unit 35 receives a remote control signal (infrared signal) emitted from the remote controller 36. Based on the remote control signal received by the remote control light receiving unit 35, the control unit 100 instructs the channel selection unit 33 to select a channel, change the OSD to be drawn, and the like.

  Note that the channel selection process in the channel selection unit 33, the process in the separation unit 16, and the decoding process of each data are controlled by the control unit 100 using the memory 7. The memory 7 is a main storage device that can be directly read and written by the control unit 100.

  The OPC (RGB) sensor 51 is a sensor that senses ambient illuminance. The OPC (RGB) sensor 51 supplies an electric signal (hereinafter referred to as “illuminance signal”) having a value corresponding to the sensed ambient illuminance to the control unit 100.

  The human sensor (heat) sensor 52 is a sensor that detects whether or not there is a person around. The human sensor (heat) sensor 52 senses whether or not a person exists in the surroundings, for example, by detecting movement of the heat source or by detecting a difference between the temperature of the heat source and the ambient temperature. . An output signal of the human (thermal) sensor 52 (hereinafter, referred to as “human signal”) is amplified by an amplifier circuit (not shown), and then converted into a digital signal by an ADC (not shown). 100.

  The human sensor (heat) sensor 52 includes an active sensor that irradiates infrared rays and detects reflection thereof, and a passive sensor that does not emit infrared rays and detects infrared rays emitted from an object. The pyroelectric infrared sensor is an example of a passive sensor.

  In addition, as a method for detecting movement of a person using a pyroelectric infrared sensor or the like, a lens having unevenness (for example, a Fresnel lens) is disposed in front of the sensor to intermittently emit infrared rays emitted from the human body. In many cases, a method of obtaining a human signal from a sensor as an alternating current by measuring the current is measured.

  When there is a person (viewer) around the TV 10 (more precisely, the detection range of the human sensor 52), the temperature change detected by the human (heat) sensor 52 becomes large, When there is no person, the temperature change sensed by the human sensor (heat) sensor 52 becomes small. For this reason, it is possible to determine whether or not there is a person around the television 10 by referring to the value of the human detection signal supplied from the human (heat) sensor 52.

  The power supply unit 53 operates in a normal mode or a standby mode. Here, the normal mode is an operation mode for supplying power to almost all blocks that consume power among the blocks shown in FIG. 2 (excluding the power supply unit 53), and the standby mode is a block shown in FIG. Of the power supply unit 53 (excluding the power supply unit 53), power is limited to the external interface (external input unit 31, communication control unit 34, remote control light receiving unit 35), sensor (OPC sensor 51, human sensor 52), and control unit 100. This is the operation mode to be supplied.

  The control unit 100 switches the operation mode of the power supply unit 53 based on the remote control signal transmitted by the remote controller 36 and received by the remote control light receiving unit 35. Specifically, when a power button (not shown) provided on the remote controller 36 is pressed in the normal mode, the power supply unit 53 is switched to the standby mode, and the power button provided on the remote controller 36 in the standby mode. When is pressed, the power supply unit 53 is switched to the normal mode. The control unit 100 further switches the operation mode based on the human detection signal supplied from the human detection sensor 52 and the illuminance signal supplied from the OPC sensor.

(Change of operation mode based on human sensor (heat) sensor 52)
The normal mode in the television 10 includes at least a normal power consumption mode and a save mode. More specifically, in the television 10, a state in which the user is not present within the detection range of the human (thermal) sensor 52 based on the human signal supplied from the human (thermal) sensor 52. When the state transitions to, the operation mode is switched from the normal power consumption mode to the save mode.

  Here, the save mode is an operation mode in which the power consumed in the television 10 is reduced compared to the normal power consumption mode. In the normal power consumption mode, power is supplied to all blocks that consume power among the blocks (except for the power supply unit 53) shown in FIG. On the other hand, in the save mode, power is not supplied to some blocks that consume power among the blocks (excluding the power supply unit 53) shown in FIG.

  As a method for reducing the power consumption, for example, display of an image on the liquid crystal display device 22 may be stopped (that is, the image is erased), or the amount of light of the backlight in the liquid crystal display device 22 is reduced. You may make it do. Further, as the operation in the save mode, any operation may be executed as long as it operates so as to reduce the power consumed in the television 10. However, the save mode is preferably an operation mode different from the standby mode. In other words, there are more blocks that operate than in the standby mode. For example, in the save mode, even when the supply of power for operating the function related to video display is interrupted, the power for operating the function related to audio output may be continuously supplied.

  The television 10 further switches the operation mode from the save mode to the normal power consumption mode when the state transitions from a state where the user is not present within the detection range of the human sensor (heat) sensor 52. May be.

(Configuration of control unit 100)
Next, the configuration of the control unit 100 provided in the television 10 according to the present embodiment will be described below with reference to FIG. FIG. 1 is a block diagram illustrating a main configuration of a control unit 100 provided in the television 10.

  As shown in FIG. 1, the control unit 100 includes a determination unit 110, a video display control unit 111, and an audio output control unit 112. These members will be described below.

(Determination unit 110)
The determination unit 110 compares the value of the human detection signal acquired from the human detection (heat) sensor 52 with a predetermined threshold value recorded in the memory 7, so that the determination unit 110 is within the detection range of the human detection (heat) sensor 52. It is determined whether or not there is a person (that is, around the television receiver 10).

  As a determination method in the determination unit 110, for example, when the value of the human detection signal acquired from the human detection (heat) sensor 52 is larger than the threshold value, it is determined that the user is within the detection range, and the human detection signal value is A method of determining that there is no user within the detection range can be given when the value is smaller than the threshold value.

  The threshold value recorded in the memory 7 may be a predetermined fixed value or a variable value set by the user.

(Video display control unit 111)
The video display control unit 111, based on the determination result in the determination unit 110, a notification video indicating that the user is within the detection range of the human (thermal) sensor 52 or the detection range of the human (thermal) sensor 52. One of the notification videos indicating that there is no user is displayed on the liquid crystal display device 22.

  Note that the video instructed to be displayed by the video display control unit 111 is preferably a video recorded in advance in a memory.

(Audio output control unit 112)
Based on the determination result in the determination unit 110, the audio output control unit 112 is a voice indicating that the user is within the detection range of the human (thermal) sensor 52, or within the detection range of the human (thermal) sensor 52. Is instructed to output from the speaker 28 one of the voices indicating that no user is present.

  Note that the sound instructing output in the video display control unit 111 is preferably sound recorded in advance in a memory.

(Details of detection state notification processing in the control unit 100)
Subsequently, details of the detection state notification process for notifying whether there is a user within the detection range of the human (thermal) sensor 52 in the television 10 (that is, notifying the detection information of the human (thermal) sensor 52). Is described below.

  First, the user instructs to change the operation mode of the television 10 via the operation input device. More specifically, when the user gives an instruction to change the operation mode to the operation confirmation mode via the remote controller 36, the control unit 100 changes the operation mode of the television 10 to the operation confirmation mode.

  When the operation mode of the television 10 is changed to the operation confirmation mode, the determination unit 110 compares the human signal value acquired from the human sensor (heat) sensor 52 with a predetermined threshold value recorded in the memory 7. To do. That is, the determination unit 110 determines whether or not the amount of movement of the heat source around the human sensor (heat) sensor 52 (that is, the amount of movement of the heat source around the television 10) is larger than the reference amount of movement of the heat source.

  When the determination unit 110 determines that the amount of movement of the heat source around the human sensor (heat) sensor 52 is larger than the reference heat source movement amount, the determination unit 110 has a user within the detection range of the human sensor (heat) sensor 52. And notify the user accordingly. More specifically, the determination unit 110 instructs the video display control unit 111 to display a notification video indicating that the user is within the detection range of the human sensor (heat) sensor 52.

  Upon receiving the instruction, the video display control unit 111 instructs the video selector unit 18 to read out a notification video indicating that there is a user recorded in the memory and display it on the liquid crystal display device 22.

  Upon receiving the instruction, the video selector 18 reads out a video signal representing a notification video indicating that the user is present from the memory and supplies the video signal to the video processing unit 19. The video signal representing the notification video processed by the video processing unit 19 is synthesized with the video signal representing the video of the broadcast program by the synthesis unit 20 and supplied to the display control unit 21. The display control unit 21 displays the video represented by the video signal synthesized by the synthesis unit 20 on the liquid crystal display device 22.

  As a result, when the user is within the detection range of the human sensor (heat) sensor 52, a notification video for notifying that the user is within the detection range is displayed on the display of the liquid crystal display device 22.

  Further, the determination unit 110 instructs the audio output control unit 112 to output a sound indicating that the user is within the detection range of the human sensor (heat) sensor 52.

  Receiving the instruction, the audio output control unit 112 instructs the audio selector unit 26 to read out the sound indicating that there is a user recorded in the memory.

  Upon receiving the instruction, the audio selector unit 26 reads out an audio signal representing the audio indicating that the user is present from the memory and supplies the audio signal to the audio output conversion unit 27. The speaker 28 outputs the audio signal amplified by the audio output conversion unit 27.

  As a result, when the user is within the detection range of the human sensor (heat) sensor 52, a sound notifying that the user is within the detection range is output from the speaker 28.

  On the other hand, when the determination unit 110 determines that the amount of movement of the heat source around the human sensor (heat) sensor 52 is smaller than the reference heat source transfer amount, the determination unit 110 is within the detection range of the human sensor (heat) sensor 52. Recognize that there is no, and notify the user accordingly. More specifically, the determination unit 110 instructs the video display control unit 111 to display a notification video indicating that there is no user within the detection range of the human sensor (heat) sensor 52. Since the process in this case is the same as the case where the notification video indicating that the user is present is displayed, a detailed description of the process is omitted.

  Further, the determination unit 110 instructs the audio output control unit 112 to output a sound indicating that the user is not within the detection range of the human sensor (heat) sensor 52. Since the processing in this case is the same as that in the case of outputting the sound indicating that the user is present, as in the case of displaying the video, the description of the detailed processing is omitted.

  The memory storing the notification video and audio may be the memory 7 or another memory. Further, it may be an internal memory built in the television 10 or an external memory externally connected to the television 10.

  The human sensor (heat) sensor 52 is unstable in operation for a while after the power supply is started. Therefore, the determination is made regardless of the value of the human sensor signal acquired from the human sensor (heat) sensor 52 until a predetermined time elapses after the power supply to the human sensor (heat) sensor 52 is started. A configuration may be employed in which the unit 110 determines that there is a person.

(Advantages of TV 10)
As described above, in the television 10, when the video display device is operated in the operation confirmation mode, the presence of the user is recognized within the detection range of the human (thermal) sensor 52 based on the human detection signal. The user is notified immediately by displaying video or outputting sound.

  As described above, in the television 10, when the user is within the detection range of the human sensor (heat) sensor 52, the video or the fact that the user is not within the detection range, Since notification is performed using at least one of the voices, the user can grasp in real time whether or not he / she is within the detection range of the human sensor (heat) sensor 52.

  In addition, when notifying whether it exists in a detection range with an image | video, it can grasp | ascertain easily and reliably whether a user is surely in a detection range. In addition, when the user is notified by voice whether or not the user is within the detection range, the user must know whether or not he / she is within the detection range even when the user cannot check the video. Can do.

(Specific example of notification video)
Here, specific examples of the notification video for notifying that there is a user whose display is instructed by the video display control unit 111 and the notification video for notifying the absence of the user are shown in FIGS. 6 (a) and (b).

  FIGS. 3A and 3B are diagrams showing an example of an image for notifying the detection result of the human sensor (thermal) sensor 52. FIG. 3A shows a state where the presence of a user is detected. ) Indicates that the presence of a user is not detected. FIGS. 4A and 4B are diagrams showing another example of a video for notifying the detection result of the human sensor (heat) sensor 52. FIG. 4A shows a state in which the presence of the user is detected. (B) shows a state where the presence of the user is not detected. FIG. 5 is a diagram showing still another example of an image for notifying the detection result of the human sensor (heat) sensor 52. FIGS. 6A and 6B are diagrams showing still another example of an image for notifying the detection result of the human sensor (heat) sensor 52, and FIG. 6A shows a state in which the presence of a user is detected. , (B) shows a state where the presence of the user is not detected.

  As shown in FIGS. 3 (a) and 3 (b) to 6 (a) and 6 (b), displaying an image notifying whether or not the user is within the detection range of the human sensor (thermal) sensor 52. Thus, the user can grasp in real time whether or not the user is within the detection range of the human sensor (heat) sensor 52.

  3 (a) and 3 (b) to 6 (a) and 6 (b), the notification video is displayed on the entire display as an example. However, the present invention is not limited to this. Absent. The notification video may be superimposed and displayed on the program video obtained by decoding the broadcast wave received by the television 10. In this case, the user can grasp whether or not the user is within the detection range of the human (heat) sensor 52 in real time while viewing the broadcast program.

  In the present embodiment, a configuration in which a still image is displayed to notify whether or not the user is within the detection range of the human (thermal) sensor 52 has been shown, but the present invention is not limited to this. I don't mean. For example, in order to notify whether or not the user is within the detection range of the human sensor (heat) sensor 52, a video of a moving image may be displayed.

  Note that the determination unit 110 according to the present embodiment compares the human detection signal acquired from the human detection (heat) sensor 52 with a predetermined threshold value, so that the user falls within the detection range of the human detection (heat) sensor 52. Although it was determined whether or not there is a user, if it is determined that there is a user, the distance between the human sensor (heat) sensor 52 and the user may be detected. Further, the video display control unit 111 may change the size of the video for notifying the detection result of the human (thermal) sensor 52 according to the distance between the human (thermal) sensor 52 and the user. Specifically, when the human (thermal) sensor 52 is close to the user, the video may be displayed larger, and when the distance is far, the video may be displayed smaller.

  Note that the video display control unit 111 may change the video for notifying the detection result of the human (thermal) sensor 52 according to whether or not the detection of the human (thermal) sensor 52 is good. Specifically, the color of the video for notifying the detection result may be changed depending on whether the detection is good or not. Further, when the detection is good, an indication that the detection is good (for example, a circle symbol), and when it is not good, an indication that the detection is not good (for example, a triangle symbol) is notified of the detection result. It may be displayed together with the video. Here, as a cause when the detection of the human sensor (heat) sensor 52 is not good, for example, an obstacle exists in front of the human sensor (heat) sensor 52, and the amount of received infrared rays is limited. Etc.

  In addition, the video display control unit 111 performs the human (thermal) sensor as shown in FIG. 7 until the predetermined time elapses after the power supply to the human (heat) sensor 52 is started. A notification video indicating that 52 is in preparation is displayed. In addition, you may blink the display which shows the content that the human sensor (heat) sensor 52 is preparing.

(Additional notes)
In the television 10 according to the present embodiment, the user is notified by both video display and audio notification whether or not it is within the detection range of the human sensor (thermal) sensor 52, but of course the present invention is not limited to this. Absent. The notification to the user may be at least one of notification by video display and audio notification. Further, any method other than the notification by video display and the voice notification may be used as long as it can notify the user whether or not it is within the detection range in real time. For example, the user may be notified whether or not it is within the detection range of the human sensor (heat) sensor 52 depending on whether or not a light emitting unit (such as an LED) provided in the television 10 emits light.

(Program and recording medium)
The control unit 100 included in the television 10 may be configured by hardware logic. Alternatively, it may be realized by software using a CPU (Central Processing Unit) as follows.

  That is, the control unit 100 includes a CPU such as an MPU that executes instructions of a program that realizes each function, a ROM (Read Only Memory) that stores the program, and a RAM (Random Access Memory) that expands the program into an executable format. ), And a storage device (recording medium) such as a memory for storing the program and various data.

  The object of the present invention is not limited to the case where the program is stored in the program memory of the control unit 100, but a record in which the program code (execution format program, intermediate code program, or source program) of the program is recorded. This can also be achieved by supplying a medium to the television 10 and reading and executing the program code recorded on the recording medium.

  The recording medium is not limited to a specific structure or type. That is, the recording medium includes, for example, a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. System, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM.

  Further, even if the control unit 100 (or the television 10) is configured to be connectable to a communication network, the object of the present invention can be achieved. In this case, the program code is supplied to the control unit 100 via the communication network. The communication network is not limited to a specific type or form as long as it can supply the program code to the control unit 100. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication network, etc. may be used.

  The transmission medium constituting the communication network may be any medium that can transmit the program code, and is not limited to a specific configuration or type. For example, even with wired lines such as IEEE1394, USB, power line carrier, cable TV line, telephone line, ADSL (Asymmetric Digital Subscriber Line) line, infrared rays such as IrDA and remote control, Bluetooth (registered trademark), 802.11 wireless, HDR, mobile phone It can also be used by radio such as a telephone network, a satellite line, and a terrestrial digital network. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in the embodiments are also included. It is included in the technical scope of the present invention.

  The video display device according to the present invention can be suitably used as a television receiver including a human sensor.

7 Memory 10 Television receiver (video display device)
DESCRIPTION OF SYMBOLS 11 Antenna 12 Analog tuner part 13 Antenna 14 Digital tuner part 15 Digital demodulation part 16 Separation part (DMUX)
17 Video decoding unit 18 Video selector unit 19 Video processing unit 20 Compositing unit 21 Display control unit 22 Liquid crystal display device (presentation means)
23 IP broadcast tuner unit 24 EPG / OSD processing unit 25 Audio decoding unit 26 Audio selector unit 27 Audio output conversion unit 28 Speaker (presentation means)
DESCRIPTION OF SYMBOLS 30 External apparatus 31 External input part 32 Recording / reproducing part 33 Channel selection part 34 Communication control part 35 Remote control light-receiving part 36 Remote controller 51 OPC (RGB) sensor 52 Human sensor (thermal) sensor 53 Power supply part 100 Control part 110 Judgment part 111 Image | video Display control unit (presentation means)
112 Voice output control unit (presentation means)

Claims (14)

An image display device equipped with a human sensor that reduces power consumption when the presence of a viewer is not recognized within the detection range of the human sensor compared to the presence of a viewer In a video display device that operates in the selected operation mode,
When operating the video display device in the operation confirmation mode for confirming the operation of the human sensor, based on the signal output from the human sensor, the viewer's detection range is within the detection range of the human sensor. A presentation means for immediately presenting information indicating whether or not existence is present to the viewer;
The presenting means displays a notification video indicating that the human sensor has not detected a viewer until a predetermined time has elapsed since the start of power supply to the human sensor. Film image display device characterized by. An image display device equipped with a human sensor that reduces power consumption when the presence of a viewer is not recognized within the detection range of the human sensor compared to the presence of a viewer In a video display device that operates in the selected operation mode,
When operating the video display device in the operation confirmation mode for confirming the operation of the human sensor, based on the signal output from the human sensor, the viewer's detection range is within the detection range of the human sensor. A presentation means for immediately presenting information indicating whether or not existence is present to the viewer;
The presenting means outputs a notification sound indicating that no viewer is detected by the human sensor until a predetermined time elapses after power supply to the human sensor is started. Film image display device characterized by. The presenting means, when the presence of a viewer is recognized within the detection range of the human sensor, displays a notification video indicating that the human sensor has detected the viewer. Or the video display apparatus of 2. The presenting means displays a notification image indicating that the presence sensor is not detected when the presence of a viewer is not recognized within the detection range of the presence sensor. 4. The video display device according to any one of 1 to 3 . The notification images, the image display device according to claim 3 or 4, characterized in that a moving image. Said presenting means, notification indicating that if the presence of the viewer within the detection range of the human sensor is recognized, and is detected by the human sensor in accordance with the distance between the person detecting sensor with viewers video display according to any one of claims 1-5, characterized in that to display by changing the size of the image. It has a program video generation means for generating a program video based on the received broadcast wave,
It said presenting means, the notification image, image display device according to claims 1 and 3, characterized in that the superimposed and displayed on the program image that is generated in the program video generating means in any one of 5.   The presenting means, when the presence of a viewer is recognized within the detection range of the human sensor, outputs a notification voice indicating that the human sensor has detected the viewer. 8. The video display device according to any one of 1 to 7.   The presenting means, when the presence of a viewer is not recognized within the detection range of the human sensor, outputs a notification voice indicating that the human sensor has not detected the viewer. 9. The video display device according to any one of 1 to 8. The motion sensor, the video display apparatus according to any one of claims 1 9, characterized in that the pyroelectric infrared sensor. An image display device equipped with a human sensor that reduces power consumption when the presence of a viewer is not recognized within the detection range of the human sensor compared to the presence of a viewer In the detection state presentation method in the video display device that operates in the operation mode,
When operating the video display device in the operation confirmation mode for confirming the operation of the human sensor, based on the signal output from the human sensor, the viewer's detection range is within the detection range of the human sensor. there are Nde including the presenting step that immediately presented to the viewer the information indicating whether or not is observed,
In the presenting step, a notification video indicating that a viewer is not detected by the human sensor until a predetermined time elapses after the power supply to the human sensor is started. A detection state presentation method characterized by displaying . An image display device equipped with a human sensor that reduces power consumption when the presence of a viewer is not recognized within the detection range of the human sensor compared to the presence of a viewer Shi
In a detection state presentation method in a video display device that operates in a different operation mode,
When operating the video display device in the operation confirmation mode for confirming the operation of the human sensor, based on the signal output from the human sensor, the viewer's detection range is within the detection range of the human sensor. Including a presentation step that immediately presents to the viewer information indicating whether or not presence is present,
In the presenting step, a notification sound indicating that a viewer is not detected by the human sensor until a predetermined time elapses after the power supply to the human sensor is started. A detection state presentation method characterized by outputting. A program for operating a computer that is equipped with a video display according to any one of claims 1 1 0, a program for causing the computer to function as each means described above.   A computer-readable recording medium on which the program according to claim 13 is recorded.

Images