JP2008148140A - Video display device - Google Patents

Abstract

A video display device and a video display device capable of easily obtaining information on power consumption in one or a plurality of electric devices connected to the video display device are provided.
Self-power consumption information relating to power consumption in a television receiver X (video display device) and external power consumption information relating to power consumption in a recording / playback device Y (electric equipment) are acquired (S2 to S6), Based on the self-power consumption information and the external power consumption information, overall power consumption information relating to power consumption in the entire television receiver X and the recording / playback apparatus Y is generated (S9) and displayed on the video display unit. (S10) is configured as a video display device.
[Selection] Figure 4

Description

  The present invention relates to a video display device that displays video, and more particularly to a video display device that communicates with one or a plurality of electrical devices through predetermined signal transmission means.

Conventionally, a television receiver (an example of a video display device) is used by being connected to an electrical device such as a hard disk recorder, a DVD recorder, or a set top box. In general, basic power consumption in the television receiver and the electric device is described in a label or an instruction manual attached to the back surface of the device.
On the other hand, Patent Document 1 proposes measuring power consumption in a television receiver and displaying it on a screen. Thereby, the user can easily know the actual power consumption in the television receiver.
Japanese Patent Laid-Open No. 07-212666

However, in Patent Document 1, only the power consumption in the television receiver is displayed, and the power consumption in an external electric device connected to the television receiver cannot be displayed. Therefore, in order to know the power consumption of the entire television receiver and the electric device, the user needs to sum up the power consumption of each device with reference to the label and the instruction manual. There is a problem that the power consumption of the entire system cannot be easily known. It is also difficult to grasp the history of the integrated value of power consumption in any period such as one year, one month, one week, one day, etc. in the entire television receiver and the electric device.
Accordingly, the present invention has been made in view of the above circumstances, and an object of the present invention is to easily provide information on power consumption in the entire video display device and one or a plurality of electric devices connected to the video display device. An object of the present invention is to provide an image display device that can be known.

In order to achieve the above object, the present invention comprises a video display means for displaying a video, and is applied to a video display apparatus that communicates with one or a plurality of electrical devices through a predetermined signal transmission means. , Acquiring self-power consumption information relating to power consumption in the video display device and external power consumption information relating to power consumption in the electric device, and based on the self-power consumption information and the external power consumption information, the video display device and It is configured as a video display device that generates total power consumption information related to power consumption in the entire electrical equipment and displays it on the video display unit.
In the video display device configured as described above, the user refers to the overall power consumption information displayed on the video display unit, and thereby various types of power consumption in the video display device and the electrical equipment as a whole. Information can be easily obtained. Moreover, the user can be made aware of power saving by the configuration in which the user can easily refer to the power consumption of the entire video display device and the electric device as described above.

Specifically, it is conceivable that the current power consumption in the video display device is included in the self-power consumption information, and the current power consumption in the electrical device is included in the external power consumption information. In this case, the total power consumption information includes the current power consumption in each of the video display device and the electrical device, and the total value of the current power consumption in each of the video display device and the electrical device. Can be considered. Accordingly, the user can easily grasp the current power consumption of the entire video display device and the electric device by referring to the total power consumption information displayed on the video display device.
Further, the self-power consumption information includes an integrated value of power consumption for each arbitrary period in the video display device, and the external power consumption information includes an integration of power consumption for every arbitrary period of the electrical device. It is also possible that a value is included. In this case, the total power consumption information includes the power consumption for each arbitrary period in each of the video display device and the electric device, and the power consumption for each arbitrary period in the video display device and the electric device. It is conceivable that the total amount is included. Accordingly, the user can easily grasp the history of the power consumption amount in the video display device and the entire electrical equipment by referring to the overall power consumption information displayed on the video display device.

Here, an example of a method for acquiring the integrated value of the power consumption for each arbitrary period in the electrical device will be described.
First, in a configuration in which the predetermined signal transmission means includes CEC signal transmission means for performing signal transmission in a method compliant with the CEC standard of the HDMI standard, the power on / off of the electric device is detected through the CEC signal transmission means. It is possible to embody power on / off detection means. Thereby, it is also possible to embody power-on time calculation means for calculating the power-on time for each arbitrary period of the electric device based on the detection result by the power-on / off detection means.
Therefore, if the unit time power consumption information regarding the power consumption per unit time in the electrical device is acquired from the electrical device through the CEC signal transmission unit, the calculation result by the power-on time calculation unit and the unit time power consumption information are obtained. Based on the above, an integrated value of the power consumption amount for each arbitrary period of the electric device can be calculated.
On the other hand, when the electric device is configured to be able to grasp accurate power consumption in consideration of the operation mode of the electric device, the CEC signal transmission means transmits the external power consumption information. It is conceivable to request the electric device through Thereby, the external power consumption information returned in response to the request can be acquired. In this case, more accurate overall power consumption information is generated based on the external power consumption information and displayed on the video display unit.

Furthermore, the total value of the current power consumption in each of the video display device and the electrical device, or the total value of the power consumption amount for each arbitrary period in each of the video display device and the electrical device is set in advance. It is conceivable that an alarm is displayed on the video display unit when the upper limit value is exceeded.
Thereby, for example, it becomes easy to manage so that the power consumption of the entire video display device and the electric device does not exceed the maximum allowable capacity (upper limit value) of the commercial AC power supply that supplies power to them. In addition, it is possible to easily grasp a specific period in which the video display device and the electric device are used in large quantities.

According to the present invention, the user can easily obtain various types of information about the power consumption of the entire video display device and the electric device by referring to the total power consumption information displayed on the video display unit. be able to. Moreover, the user can be made aware of power saving by the configuration in which the user can easily refer to the power consumption of the entire video display device and the electric device as described above.
Specifically, the current power consumption in each of the video display device and the electrical device, the total value of the current power consumption in each of the video display device and the electrical device, the video display device and the electrical device It is possible to easily grasp the power consumption for each arbitrary period, the total value of the power consumption for each arbitrary period in each of the video display device and the electric device.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that the present invention can be understood. The following embodiment is an example embodying the present invention, and does not limit the technical scope of the present invention.
1 is a block diagram of a recording system Z including the television receiver X according to the embodiment of the present invention, FIG. 2 is a diagram showing an example of power consumption correspondence information, and FIG. 3 is an example of self-operation history information. FIG. 4 is a flowchart for explaining an example of a procedure of power consumption display processing executed in the television receiver X, and FIG. 5 is a diagram showing a display example by the power consumption display processing.
First, the configuration of a recording system Z including a television receiver X according to an embodiment of the present invention will be described using the block diagram shown in FIG.
As shown in FIG. 1, a recording system Z according to an embodiment of the present invention includes a television receiver X (an example of a video display device) including a video display unit 5 that displays video, and a plurality of recording / playback functions. This is a system in which two recording / playback apparatuses Y (Y1, Y2; examples of electrical equipment) are connected to each other by an HDMI interface W which is a signal transmission unit compliant with the HDMI standard.
The television receiver X according to the embodiment of the present invention may cause the video display unit 5 to display information relating to power consumption in the entire recording system Z including the television receiver X and the recording / playback device Y. It has a feature in that it can be done. This will be described in detail later.

Here, the HDMI interface W includes a TMDS line 41 for transmitting a video signal and an audio signal (both are digital signals), and a CEC line 42 (corresponding to a CEC signal transmission line) compliant with the CEC standard which is an optional standard of the HDMI standard. ) Is included. The TMDS line 41 is composed of a plurality of signal lines, and the TMDS line 41 and the CEC line 42 are apparently configured as one HDMI cable 40. The HDMI interface W can realize simple wiring and signal transmission without deterioration. Further, the HDMI interface W transmits unencoded (uncompressed) video signals and audio signals (transmitted by the baseband method), and thus is not affected by the difference in the signal encoding method between devices. Excellent extensibility and durability (possibility of connection with equipment that adopts a new encoding method in the future).
Further, the HDMI interface W can transmit external power consumption information and other information (control information, etc.), which will be described later, through the CEC line 42 in addition to transmission of video signals and audio signals through the TMDS line 41. It is. The HDMI interface W can transmit the video signal and the audio signal through the TMDS line 41 only in one direction, but can transmit the information through the CEC line 42 in both directions.

[TV receiver X]
As shown in FIG. 1, a television receiver X according to an embodiment of the present invention includes a tuner 1, two HDMI receiving units (indicated as HDMI-RX in the figure) 2xa, 2ya, and a CEC interface (in the figure, CEC). -IF) 2xb, video switching circuit 3, video processing circuit 4, video display unit 5, control circuit 6, remote control interface (I / F) circuit 7, remote control 8, sub MPU 9, audio switching circuit 10, audio processing circuit 11, an amplifier 12, a speaker 13, and the like.
The tuner 1 extracts (selects) a broadcast channel signal designated by the control circuit 6 from a broadcast signal such as a terrestrial broadcast signal or a BS satellite broadcast signal, and detects a video signal and a signal by detecting the extracted signal. The audio signal is taken out, and the video signal and the audio signal are transmitted to the video switching circuit 3 and the audio switching circuit 10, respectively.

In the example shown in FIG. 1, the television receiver X includes two HDMI receiving units 2xa and 2ya corresponding to the two recording / reproducing apparatuses Y, respectively. Further, only one CEC interface 2xb is provided for the two recording / playback apparatuses Y.
The HDMI receiving units 2xa and 2ya are signal transmission interfaces compliant with the HDMI standard. The HDMI receiving units 2xa and 2ya input video signals and audio signals from an external device (here, the recording / reproducing device Y) through the TMDS line 41 in a baseband manner, and input them to the video switching circuit 3 and the audio. The data is transmitted to each switching circuit 10.
The CEC interface 2xb is a signal transmission interface (corresponding to a CEC signal transmission means) that performs signal transmission in a method compliant with the CEC standard in the HDMI standard. The CEC interface 2xb transmits / receives information to / from an external device (here, the recording / playback device Y) through the CEC line 42. The direct transmission destination of the reception information and the direct supply source of the transmission information of the CEC interface 2xb are the sub MPU 9.

The video switching circuit 3 inputs video signals from the tuner 1 and the HDMI receiving units 2xa and 2ya, and selects any one of the video signals according to an instruction from the control circuit 6. Output.
The video processing circuit 4 performs various signal processing on the video signal output from the video switching circuit 3. For example, the video processing circuit 4 has an OSD function that superimposes (superimposes) the video of the information designated by the control circuit 6 on the video signal from the video switching circuit 3.
The video display unit 5 includes a liquid crystal display unit including a liquid crystal panel and a liquid crystal driver, and displays video based on the video signal output from the video processing circuit 4.

The audio switching circuit 10 receives the audio signal from the tuner 1 and the audio signals from the HDMI receiving units 2xa and 2ya, and receives an arbitrary one of the audio signals from the control circuit 6. Is output to the sound processing circuit 11 in accordance with the instruction.
The audio processing circuit 11 performs equalization processing, D / A conversion processing, and the like on the signal output from the audio switching circuit 10.
The amplifier 12 performs a process (volume adjustment process) for amplifying or attenuating the audio signal processed by the audio processing circuit 11 in accordance with an instruction from the control circuit 6, and outputs it to the speaker 13.

The remote controller 8 is a remote controller that outputs a radio signal (for example, an infrared signal) for controlling the operation of the television receiver X, and includes an operation input unit (not shown), a radio signal output circuit, and the like. .
The operation input unit is an operation unit for inputting information, such as a channel selection key and a volume control key, and a signal corresponding to the operation content is transmitted to the wireless signal output circuit. The wireless signal output circuit converts a signal transmitted from the operation input unit (that is, a control signal for the operation of the television receiver X) into a wireless signal (for example, an infrared signal), and the remote controller 8 To the television receiver X main body.
On the other hand, the remote control interface circuit 7 receives a radio signal (such as an infrared signal) transmitted from the remote controller 8 and converts it into an electrical signal, thereby acquiring various information transmitted from the remote controller 8. The acquired information is transmitted to the sub MPU 9.
The sub MPU 9 is a microcomputer that executes a process of relaying information transmission between the control circuit 6, the remote control interface circuit 7 and the CEC interface 2xb.
Further, the sub MPU 9 has a power on / off detection function for detecting the power on / off state of the recording / playback apparatus Y connected via the CEC interface 2xb via the CEC interface 2xb. Here, the sub MPU 9 when realizing the power on / off detection function corresponds to the power on / off detection means. The detection result by the power on / off detection function of the sub MPU 9 is input to the control circuit 6.

The control circuit 6 includes an MPU 6a which is an arithmetic means, a ROM 6b (EPROM) which is a storage means in which a control program executed by the MPU 6a is stored in advance, an EEPROM 6c which stores various information read and written in processing executed by the MPU 6a, etc. And the entire television receiver X is controlled. The following processing and functions of the control circuit 6 are realized by the MPU 6a executing a program stored in the ROM 6b.
The ROM 6b stores power consumption correspondence information related to power consumption according to the operating state of the television receiver X in advance. This power consumption correspondence information is set based on a result measured in advance, for example, when the television receiver X is manufactured.

  FIG. 2 shows a specific example of the power consumption correspondence information. As shown in FIG. 2, the power consumption correspondence information includes (a) basic operating power, (b) power consumption increase / decrease value corresponding to the video adjustment (brightness) setting value, and (c) audio output (volume). ) Includes information on the power consumption increase / decrease value corresponding to the set value, and (d) information on the power consumption increase / decrease value corresponding to whether the exhaust fan is operating. The exhaust fan operates to radiate and cool the television receiver X, and is automatically turned on and off by the control circuit 6 in accordance with the internal temperature and operating time.

  The control circuit 6 includes a self-power consumption calculation function for calculating the current power consumption in the television receiver X based on the power consumption correspondence information stored in the ROM 6b, and an arbitrary power consumption in the television receiver X. Self-power consumption integration function for calculating an integrated value of power consumption in a period, and power-on / off storage of the result of detection of the power-on / off state of the recording / playback apparatus Y input from the sub MPU 28 as a history in the EEPROM 6c And a state history management function. Here, information such as the current power consumption calculated by the self-power consumption calculation function and the integrated value of power consumption in an arbitrary period calculated by the self-power consumption integration function is stored in the television receiver. It is an example of the self-power-consumption information regarding the power consumption in X. The control circuit 6 when implementing the self-power consumption calculation function and the self-power consumption amount integration function corresponds to self-power consumption acquisition means.

Here, the self-power consumption calculation function and the self-power consumption amount integration function of the control circuit 6 will be described with reference to FIG.
The self-power consumption calculation function calculates the current power consumption in the television receiver X based on the current operating state of the television receiver X and the power consumption correspondence information (see FIG. 2).
Specifically, at the time point P1 indicated by a one-dot chain line in FIG. 3, the operation state of the television receiver X is as follows: the video adjustment (brightness) is reduced by one step; the audio output (volume) is increased by two steps; The exhaust fan is in operation. In this case, according to the self-power consumption calculation function of the control circuit 6, the power consumption at the time point P1 in the television receiver X is set to 100 W of the basic operating power (see FIG. 2A). -3W (see FIG. 2 (b)) by one step down of adjustment (brightness), + 6W (see FIG. 2 (c)) by two steps up of the sound output (volume), and by operating the exhaust fan The total power consumption of +3 W (see FIG. 2D), that is, 106 W (see FIG. 2E) is calculated.
In addition, although the case where power consumption is calculated based on the power consumption correspondence information set in advance by the self power consumption calculation function has been described here, for example, the current power consumption of the television receiver X It is also conceivable as another embodiment to provide a wattmeter for measuring the above. In this case, the control circuit 6 acquires the current power consumption from the power meter.

On the other hand, the self-power consumption amount integrating function of the control circuit 6 manages the operation history of the television receiver X. Specifically, when and how the television receiver X operates Self-operation history information relating to how many hours the operation has been performed is stored in the EEPROM 6c. When an arbitrary period is specified, an integrated value of power consumption within the period is calculated based on the self-operation history information.
Specifically, as shown in FIG. 3, when the self-operation history information relating to the operation from 10:00 to 20:00 on October 1 is stored in the EEPROM 6c, The process in the case of calculating the integrated value of the power consumption in the television receiver X in the period will be exemplified.
First, the power consumption corresponding to the operation state from 10:00 to 12:00 is calculated by the self-power consumption calculation function. Here, 94 W is calculated by the self-power consumption calculation function. Then, the power consumption amount 188 Wh in the period from 10:00 to 12:00 is calculated by multiplying the power consumption 94 W by 2 hours, which is the operation time in that state. Similarly, from 12 o'clock to 14 o'clock, 106 W that is power consumption corresponding to the operating state is calculated, and by multiplying 2 hours that is operating time in that state, the power consumption amount 212 Wh during that period is calculated. . Thereafter, by adding up these power consumption amounts, an integrated value 400 Wh of the power consumption amount from 10:00 to 14:00 is calculated.
Here, for convenience of explanation, an example of calculating the integrated value of power consumption in a time unit period is given as an example, but power consumption in various arbitrary periods such as a daily unit, a week unit, a monthly unit, and an annual unit are given. The integrated value of the quantity can be calculated by a similar method.

Further, the control circuit 6 of the television receiver X executes a power consumption display process (see the flowchart of FIG. 4) described later, whereby the entire television receiver X and the recording / reproducing apparatus Y (recording system). Total power consumption information relating to power consumption in the entire Z) is generated and displayed on the video display unit 5.
Specifically, the total power consumption information includes the current power consumption in each of the television receiver X and the recording / playback apparatus Y, the total value of the current power consumption, the television receiver X and the recording device. These are the power consumption for each arbitrary period in each of the playback devices Y, the total value of the power consumption, and the like. The control circuit 6 for generating and displaying the total power consumption information corresponds to the total power consumption information generating means and the total power consumption information display means. The power consumption display process will be described later with reference to FIG.

[Recording / playback device Y]
As shown in FIG. 1, a recording / playback apparatus Y according to an embodiment of the present invention includes a tuner 21, a recording / playback circuit 22, an HDD 23 (hard disk drive), a control circuit 24, an HDMI transmission unit 25a (in the figure, HDMI-TX). And a CEC interface 25b (denoted as CEC-IF in the figure), a remote control interface circuit 26, a remote control 27, a sub MPU 28, and the like. Note that the recording / playback apparatus Y is merely an example of an electric device, and a DVD recorder, a D-VHS recorder, a video camera, and other electrical appliances also correspond to the electric device.
Here, the tuner 21, the remote control interface circuit 26, the remote control 27, and the sub MPU 28 are the same as the tuner 1, the remote control interface circuit 7, the remote control 8, and the sub MPU 9 in the television receiver X, respectively. Is.

The recording / playback circuit 22 executes broadcast program recording processing and recorded program playback processing. That is, the recording / playback circuit 22 executes a recording process in which the broadcast signal (video signal and audio signal) of the program extracted by the tuner 21 is compressed and recorded in the HDD 23. Further, the recording / reproducing circuit 22 executes a reproducing process for outputting to the outside through the HDMI transmitting unit 25a while decoding the data of the broadcast program recorded (recorded) on the HDD 23.
Further, the recording / playback circuit 22 has an EPG acquisition function for extracting EPG information (electronic program guide information) contained therein from the broadcast signal of the program extracted by the tuner 21 and recording it in the HDD 23. Yes. The EPG information includes a process for generating a reserved program selection menu screen in the recording reservation process, a program title recorded in the HDD 23 in association with a video signal and an audio signal of a recorded program (recorded program), and the like. It is used when executing processing for specifying broadcast date and time, channel, and the like.

The HDMI transmitting unit 25a (denoted as HDMI-TX in the figure) is a signal transmission interface compliant with the HDMI standard. The HDMI transmitting unit 25a outputs a video signal and an audio signal through the TMDS line 41 to an external device (here, the television receiver X) by a baseband method.
Similar to the CEC interface 2xb in the television receiver X, the CEC interface 25b is a signal transmission interface compliant with the CEC standard in the HDMI standard. The CEC interface 25b transmits / receives information to / from an external device (here, the television receiver X) through the CEC line 42. The direct transmission destination of the reception information and the direct supply source of the transmission information of the CEC interface 25b are the sub MPU 28.

Further, in the recording / reproducing apparatus Y, the HDMI transmitting unit 25a and the CEC interface 25b, the sub MPU 28, and the remote control interface circuit 26 that constitute a part of the HDMI interface W are connected to the recording / reproducing apparatus Y. When connected to a commercial power supply, it is always energized. On the other hand, the tuner 21, the control circuit 24, the recording / playback circuit 22, the HDD 23, and the like are in an operating state (power supply) when the recording / playback apparatus Y is connected to a commercial power source. And a standby state (power supply falling state) in which the power to them is cut off. The switching between the two states is realized by the sub MPU 28 performing switching control of a power switch (not shown).
That is, the sub-MPU 28 has received a power key operation signal from the remote control 27 through the remote control interface circuit 26 when the recording / playback apparatus Y is in the standby state, or from the television receiver X. When it is detected that any command addressed to the device has been received through the CEC interface 25b, the recording / reproducing device Y is switched from the standby state to the operating state by switching the energization switch from the OFF state to the ON state ( That is, the power is turned on).
In addition, the sub MPU 28 has received a power key operation signal from the remote controller 27 through the remote control interface circuit 26 when the recording / playback apparatus Y is in the operating state, or from the television receiver X. When it is detected that a stop command has been received through the CEC interface 25b, the recording / playback apparatus Y is switched from the operating state to the standby state by switching the power switch from the ON state to the OFF state (that is, the power source is turned on). Can be lowered).

The control circuit 24 includes an MPU 24a which is an arithmetic means, a ROM 24b (EPROM) which is a storage means in which a control program executed by the MPU 24a is stored in advance, an EEPROM 24c which stores various information read and written in processing executed by the MPU 24a, and the like. And controls the entire recording / playback apparatus Y.
The ROM 24b stores information related to power consumption of the recording / playback apparatus Y (hereinafter referred to as “external power consumption information”). The external power consumption information includes information on basic power consumption of the recording / playback apparatus Y and information on power consumption per unit time (hereinafter referred to as “unit time power consumption information”). Here, it is assumed that the basic power consumption of the recording / playback apparatus Y is 100 W and the power consumption per unit time is 100 Wh. In the present embodiment, when the recording / playback apparatus Y is operating, the basic power consumption is regarded as the current power consumption of the recording / playback apparatus Y.
The control circuit 24 transmits the external power consumption information to the external device when the external device (here, the television receiver X) is requested to transmit the external power consumption information through the CEC line 42. To do. The request is realized by transmission / reception of a vendor code set in advance in a format compliant with the communication protocol of the CEC standard between the television receiver X and the recording / playback apparatus Y.

Hereinafter, an example of the procedure of the power consumption display process executed in the television receiver X will be described with reference to the flowchart shown in FIG. S1, S2,... Shown below represent identification codes of processing procedures (steps).
[Step S1]
First, in step S1, the control circuit 6 makes a display request for information related to power consumption on the remote control 8 or the like, specifically, an operation input for causing the video display unit 5 to display overall power consumption information to be described later. It is determined whether or not it has been received. The operation input is performed according to a menu screen in the television receiver X, for example.
Here, while it is determined that the display request is not performed, the determination process of step S1 is repeatedly executed. When it is determined that the display request is performed, the process proceeds to step S2.
In the present embodiment, the following processing is executed when the display request is made. For example, when the television receiver X is turned on, the following processing is automatically performed. It is conceivable as another example to be performed. In addition, when the television receiver X is in operation, the recording / reproducing apparatus Y is turned on or off, and the entire recording system Z including the television receiver X is used. As another embodiment, the following processing is automatically executed when the power consumption changes.

[Steps S2, S3]
In step S2, the current power consumption in the television receiver X is calculated by the self-power consumption calculation function of the control circuit 6. As described above, measuring the current power consumption of the television receiver X with a power meter or the like can be considered as another embodiment.
Next, in step S3, an integrated value of monthly power consumption in the television receiver X is calculated by the self-power consumption integration function of the control circuit 6. Specifically, the case where the control circuit 6 is set to display the integrated value of the power consumption for each month in advance will be described as an example. Arbitrary periods such as units, weeks, and years can be set. This setting may be performed, for example, during initial setting in the television receiver X or during execution of the power consumption display process. Specifically, it is set by the control circuit 6 in response to an operation input to the remote controller 8.
In the present embodiment, in step S2, the current power consumption of the television receiver X is accurately calculated according to the operating state of the television receiver X by the self-power consumption calculation function. However, simply using the basic power consumption of the television receiver X in a fixed manner can be considered as another embodiment. In this case, in the step S3, the self-power consumption amount integration function calculates the integrated value of the power consumption amount during that period by simply multiplying the usage time and the basic power consumption in any period.

[Step S4]
In step S4, the control circuit 6 acquires the external power consumption information from the recording / playback apparatus Y. Specifically, the control circuit 6 sends a command for requesting the recording / playback apparatus Y to return the external power consumption information to the recording / playback apparatus Y through the CEC interface 2xb and the CEC line 42. Here, the external power consumption information includes basic power consumption of the recording / reproducing apparatus Y and the unit time power consumption information.
At this time, if the recording / reproducing apparatus Y is in a standby state in which the power is turned off, as described above, the recording / reproducing apparatus Y is switched to the operating state by receiving the command and then the external consumption Returns power information. In this case, after the return of the external power consumption information is completed, the recording / playback apparatus Y returns to the standby state.
Thereby, the control circuit 6 acquires the external power consumption information returned from the recording / reproducing apparatus Y. Here, the control circuit 6 when executing the processing for acquiring the external power consumption information and the unit time power consumption information corresponds to an external power consumption information acquisition unit and a unit time power consumption information acquisition unit.
The external power consumption information is not limited to that acquired from the recording / playback apparatus Y. For example, when external power consumption information corresponding to a plurality of models is stored in the ROM 6b or other storage means, the control circuit 6 displays the external power consumption information corresponding to the recording / playback apparatus Y in the ROM 6b. Or by extracting from other storage means. Alternatively, it is also conceivable as another embodiment that the video recording / playback apparatus Y periodically actively transmits to the television receiver X.

[Steps S5 and S6]
Next, in step S5, the control circuit 6 calculates the power-on time for each month in the recording / playback apparatus Y. Specifically, on the basis of the detection result of power on / off of the recording / reproducing apparatus Y stored in the EEPROM 6c by the power on / off state history management function of the control circuit 6, the recording / reproducing apparatus Y in each month The power-on time is calculated. Here, the control circuit 6 when executing such calculation processing corresponds to power-on time calculation means.
Thereafter, in step S6, the control circuit 6 causes the unit time power consumption information included in the external power consumption information acquired in step S4 and 1 in the recording / playback apparatus Y acquired in step S5. Based on the power-on time of each month, an integrated value of the power consumption per month in the recording / reproducing apparatus Y is calculated.

[Steps S7 and S8]
In step S7, the control circuit 6 calculates the current power consumption of the entire television receiver X and the recording / playback apparatus Y. Specifically, a total value of power consumption in each of the television receiver X and the recording / reproducing apparatus Y is calculated.
On the other hand, in step S8, the control circuit 6 calculates an integrated value of monthly power consumption in the entire television receiver X and the entire recording / playback apparatus Y (the entire recording system Z). Specifically, the total value of the power consumption per month in each of the television receiver X and the recording / reproducing apparatus Y is calculated.

[Step S9]
In step S9, based on the various information obtained in steps S2 to S8 by the control circuit 6, the overall power consumption information relating to the power consumption in the entire television receiver X and the recording / playback apparatus Y is obtained. Generated. Specifically, the total power consumption information includes the current power consumption in each of the television receiver X and the recording / reproducing apparatus Y, the integrated value of the monthly power consumption, the television receiver X and the This includes information such as the current power consumption of the entire recording / playback apparatus Y and the integrated value of the power consumption per month. Here, the control circuit 6 for generating the total power consumption information corresponds to the total power consumption information generating means.
At this time, when the recording / playback apparatus Y is not operating, that is, in a standby state, the current power consumption of the recording / playback apparatus Y is the basic power consumption included in the external power consumption information. Than ever before. Therefore, if it is detected by the power on / off detection function of the control circuit 6 of the television receiver X that the recording / reproducing apparatus Y is turned off, the recording / reproducing apparatus Y It is conceivable to treat the power consumption as zero. Alternatively, by including the standby power consumption in the external power consumption information, the current power consumption of the recording / playback apparatus Y can be determined according to the detection result by the power on / off detection function of the control circuit 6. You may adopt by switching.

[Step S10]
Thereafter, in step S10, the control circuit 6 outputs the total power consumption information to the video processing circuit 4, so that the video of the total power consumption information is converted into the video display unit by the OSD function of the video processing circuit 4. 5 is OSD displayed. Here, the control circuit 6 for displaying the total power consumption information corresponds to the total power consumption information display means.
Here, FIG. 5 shows a display example of the total power consumption information. As shown in FIG. 5, the total power consumption information includes the current power consumption in the television receiver X and the recording / playback apparatus Y, the current power consumption in the whole, the television receiver X and the recording. An integrated value of power consumption for 3 months for each month in each playback device Y and an integrated value of power consumption for 3 months for each month in the whole are displayed.
The total power consumption information shown in FIG. 5 displays the integrated value of the power consumption for three months, but is not limited to this. For example, it may be only for one month, or it may be possible to scroll and display information on more months. In addition, it is desirable to be able to switch the display to daily, weekly, yearly, etc. instead of monthly.
Also, for example, electricity charge information related to the electricity charge corresponding to the power consumption per 1 Wh is set in advance, and the electricity charge corresponding to the power consumption is based on the integrated value of the power consumption and the electricity charge information. It is also possible to display the estimated price at the same time as another embodiment. It should be noted that since the electricity charge varies depending on the region, it is desirable that the electricity charge information can be changed during initial setting of the television receiver X or during execution of the power consumption setting process.

  As described above, in the television receiver X, the current power consumption in each of the television receiver X and the recording / playback apparatus and the total value thereof (current power consumption in the entire recording system Z) , An integrated value of power consumption for each arbitrary period in each of the television receiver X and the recording / playback apparatus, and a total value thereof (an integrated value of power consumption for each arbitrary period in the entire recording system Z) Can be displayed on the video display unit 5, so that the user can easily know the information by viewing the video display unit 5.

In the embodiment described above, the power consumption in the recording / playback apparatus Y is set to a fixed value, and the power consumption amount for an arbitrary period in the recording / playback apparatus Y is calculated on the television receiver X side.
On the other hand, it is also conceivable that the recording / playback apparatus Y calculates the current power consumption of the recording / playback apparatus Y and the power consumption during an arbitrary period. That is, it is conceivable that the recording / playback apparatus Y has functions similar to the self-power consumption calculation function and the self-power consumption amount integration function of the television receiver X. It is also conceivable that the recording / playback apparatus Y is provided with a power meter for measuring the current power consumption. The current power consumption calculated in the recording / playback apparatus Y having such a function and the integrated value of the power consumption in an arbitrary period are accurate.
Therefore, when the recording / playback apparatus Y is configured in this way, the current power consumption of the recording / playback apparatus Y and the integrated value of the power consumption during an arbitrary period are acquired from the recording / playback apparatus Y. It is possible. In this case, the television receiver X manages the history of turning on / off the recording / reproducing apparatus Y, and executes the steps S4 to S6 in the power consumption display process (see the flowchart of FIG. 4). do not have to.

Specifically, the control circuit 6 of the television receiver X, in the power consumption display process (see the flowchart of FIG. 4), replaces the steps S4 to S6 with respect to the recording / playback apparatus Y. It is requested through the CEC interface 2xb and the CEC line 42 that the current power consumption of the recording / playback apparatus Y and the integrated value of the power consumption amount in an arbitrary period in the recording / playback apparatus Y are transmitted as the external power consumption information. To execute the process. This request is realized by transmission / reception of a vendor code set in advance in a format compliant with the communication protocol of the CEC standard between the television receiver X and the recording / playback apparatus Y.
Accordingly, the external power consumption information including the current power consumption of the recording / reproducing apparatus Y and the integrated value of the power consumption amount of the recording / reproducing apparatus Y in an arbitrary period from the recording / reproducing apparatus Y to the television receiver X. Is sent. Thus, the control circuit 6 when acquiring the external power consumption information is an example of an external power consumption information acquisition unit.
Then, in the television receiver X, the processing after step S7 is executed based on the external power consumption information. As a result, the user can confirm the accurate current power consumption and the integrated value of the power consumption amount by looking at the overall power consumption information displayed on the video display unit 5.

Further, when displaying the overall power consumption information, the total value of the current power consumption in each of the television receiver X and the recording / playback apparatus Y, or the total value of the power consumption amount for each arbitrary period, It is possible to determine whether or not the upper limit value is set in advance, and to display an alarm if the upper limit value is exceeded. Here, the alarm display processing is executed by the control circuit 6, and the control circuit 6 corresponds to an alarm display means. Specifically, when the power consumption is equal to or higher than the upper limit value, the display of the power consumption amount may be displayed in a color (red or the like) different from that of other characters, or may be blinked.
In such a configuration, for example, the upper limit value of the power consumption of the entire television receiver X and the recording / playback apparatus Y is set to 450 W, which is slightly lower than the maximum allowable capacity of 500 W of the commercial AC power supply that supplies these power supplies. By setting, it becomes easy to manage so as not to exceed the maximum allowable capacity of the commercial AC power supply.
For example, if the upper limit value of power consumption per month is set to 20000 Wh, the television receiver X and the recording / playback device are displayed during the month by an alarm display when the power consumption exceeds the upper limit. It can be easily confirmed that the usage time of Y is too long.

  Further, instead of displaying the total power consumption information, whether or not the current power consumption of the entire recording system Z in the television receiver X is in the background exceeds the upper limit value. It is also conceivable to execute a process for determination and display an alarm to that effect on the video display unit 5 when it is determined that the process has been exceeded. Thereby, it is possible to prevent the current power consumption in the entire recording system Z from exceeding the upper limit value.

1 is a block diagram of a recording system Z including a television receiver X according to an embodiment of the present invention. The figure which shows an example of power consumption corresponding | compatible information. The figure which shows an example of self-operation log | history information. The flowchart explaining an example of the procedure of the power consumption display process performed in the television receiver X which concerns on embodiment of this invention. The figure which shows the example of a display by the power consumption display process performed in the television receiver X which concerns on embodiment of this invention.

Explanation of symbols

X: Television receiver (an example of a video display device)
Y ... Recording / playback device (an example of electrical equipment)
Z ... Recording system 1, 21 ... Tuners 2xa, 2ya ... HDMI receiving unit 2xb, 25b ... CEC interface 3 ... Video switching circuit 4 ... Video processing circuit 5 ... Video display unit 6, 24 ... Control circuit 7, 26 ... Remote control interface circuit 8, 27 ... Remote control 9, 28 ... Sub MPU
DESCRIPTION OF SYMBOLS 10 ... Audio switching circuit 11 ... Audio processing circuit 12 ... Amplifier 13 ... Speaker 22 ... Recording / playback circuit 23 ... HDD
25a ... HDMI transmission unit 40 ... HDMI cable 41 ... TMDS line 42 ... CEC line S1, S2, ... Process number (step)

Claims (6)

Self-power consumption acquisition means for acquiring self-power consumption information relating to power consumption in the video display device and video display means for displaying video, and communicating with one or a plurality of electric devices through predetermined signal transmission means A video display device for performing
External power consumption information acquisition means for acquiring external power consumption information related to power consumption in the electrical equipment;
Based on the self-power consumption information and the external power consumption information, an overall power consumption information generating means for generating overall power consumption information related to power consumption of the video display device and the electrical equipment as a whole;
Total power consumption information display means for displaying the total power consumption information generated by the total power consumption information generation means on the video display unit;
A video display device comprising: The self-power consumption information includes the current power consumption of the video display device,
The external power consumption information includes the current power consumption of the electrical device,
The total power consumption information includes a current power consumption in each of the video display device and the electrical device and / or a total value of current power consumption in each of the video display device and the electrical device. The video display device described in 1. The self-power consumption information includes an integrated value of power consumption per arbitrary period in the video display device,
The external power consumption information includes an integrated value of power consumption for each arbitrary period in the electrical equipment,
The total power consumption information is the sum of the power consumption for each arbitrary period in each of the video display device and the electric device and / or the power consumption for each arbitrary period in each of the video display device and the electric device. The video display device according to claim 1, comprising a value. The predetermined signal transmission means includes CEC signal transmission means for performing signal transmission in a method compliant with the CEC standard of the HDMI standard;
The power on / off detection means for detecting the power on / off of the electric equipment through the CEC signal transmission means, and the power on / off time for each arbitrary period of the electric equipment are calculated based on the detection result by the power on / off detection means. And a power-on time calculating means for
Unit external power consumption information acquisition means for acquiring unit time power consumption information regarding power consumption per unit time in the electrical equipment from the electrical equipment through the CEC signal transmission means; and the power supply The external power consumption calculation means which calculates the integrated value of the power consumption amount for every arbitrary period of the said electric equipment based on the calculation result by the input time calculation means and the said unit time power consumption information. The video display device described. The predetermined signal transmission means includes CEC signal transmission means for performing signal transmission in a method compliant with the CEC standard of the HDMI standard;
The external power consumption information acquisition unit requests the electric device to transmit the external power consumption information through the CEC signal transmission unit, and acquires the external power consumption information returned in response thereto. Item 5. The video display device according to any one of Items 1 to 4.   The total value of the current power consumption in each of the video display device and the electrical device, or the total value of the power consumption for each arbitrary period in each of the video display device and the electrical device is a preset upper limit value. 6. The video display device according to claim 1, further comprising alarm display means for displaying an alarm on the video display unit in the case described above.

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