JP2003009035A - Power control device - Google Patents

Abstract

(57) [Summary] [Problem] To provide a television receiver controlled via a network with a function of controlling power ON / OFF in response to a power control instruction, and to execute a reservation or the like when a user is in a room or not. Regardless of the monitor, the monitor may be turned on. SOLUTION: A control device 2 connected to a network 1
In the machine control target device 3 that performs power control according to a command from the device, a command transmitting / receiving unit 4R, a power control determining unit 8, and a power control unit 9 are provided. The power control determining unit 8 receives a power control command from the control device 2, determines whether to turn on or off the power for each block, and controls the power based on the determination result. By doing so, it is possible to avoid unnecessary power-on of the monitor during scheduled recording.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an audio / video device connected by a digital network such as IEEE1394 in accordance with a power control command from another device.
The present invention relates to a power supply control device that executes internal power-on or power-off.

[0002]

2. Description of the Related Art A conventional television receiver (hereinafter referred to as TV
For example, when operating the power supply from outside the TV,
That is, in most cases, the power of the TV main body is turned on by the remote controller. If the TV body receives a power-on command from the remote control signal from the standby state, T
The power of V body is turned on. Such power-on is apparently when the user is in the room and operates the power supply of the TV.

On the other hand, in the IEEE1394 network, control commands for audio / video equipment are standardized by an industry standardization organization. By implementing the device control command processing program according to this standard, it is possible to operate each audio / video device including a TV, a DVD player, and a VTR via a network. This standard defines a power control command (command), and by using this command, an external device connected to the network can turn on and off the power of the device. If the software for transmitting the power supply control command is installed in a device such as a personal computer, the power supply of the audio / video device can be controlled from the personal computer.

[0004]

When the VTR is set to the reserved recording, the main power is turned on at the reserved time from the standby state, the power state of the TV is checked, and if the power is off. A power control command is issued to turn on the TV and start recording. Here, in case of reserved recording of a broadcast program, it is not necessary to light the CRT of the TV,
It is preferable to turn on only the tuner section. However, when the VTR sends a command to turn on the power of the entire device to the TV, the monitor unit including the CRT and the video output circuit operates. In this way, it is not preferable for a TV to make the CRT emit light when the user of the TV is not in the room. This causes a disadvantage not only in safety but also in power saving.

An audio / video device is generally composed of a plurality of functional blocks. However, the function block to be turned on by the power control command is specified by the device to be controlled, so the power should not be turned on. A function block, for example, a case where the user is not present in the room, or a power supply to a display unit or a monitor unit of the TV which the user is not currently watching may be turned on unnecessarily.

[0006] The present invention has been made in view of the above-mentioned conventional problems, and among a plurality of devices connected via a network, one device (referred to as a control device) to another device (called a control device). It is intended to be able to output a power control command for each functional block to a device to be controlled). Another object of the present invention is to realize a power supply control device that can be turned on or off to save power according to the type of control target device, the operation status of the device, and the like.

[0007]

According to a first aspect of the present invention, there is provided a power supply control device for controlling the power supply of its own device including at least one functional block by a power supply control command from an external device connected to a network. There is a command transmission / reception unit that receives the power control command of the external device and transmits the response of the self device, a power control unit that turns on / off the power of the self device in at least block units, and the command transmission / reception unit. The power supply control command for each block is determined based on the power supply control command given to the block, and a power supply control determination unit that outputs the determination result to the power supply control unit is provided. is there.

According to a second aspect of the present invention, in the power supply control device according to the first aspect, the determination information as to whether the power control command from the external device is valid or invalid is stored in advance for each functional block of its own device. A determination information recording unit is further provided, and the power supply control determination unit validates execution of the power supply control command based on information of the determination information recording unit when a power supply control command from an external device is received, or It is determined whether to invalidate, and only for valid blocks, the power of each block is turned on and off based on the power control command.
The determination result is output to the power supply control unit.

According to a third aspect of the present invention, in the power supply control device according to the second aspect, the determination information recording section has a flag for determining whether or not the functional block of the entire device is valid, and each functional block. And a flag that determines whether the control command is valid or invalid.

According to a fourth aspect of the present invention, in the power supply control device according to the first aspect, the determination information as to whether to validate or invalidate the power control command from the external device is stored in advance for each functional block of the device itself. A determination information recording unit and an external device identification unit that identifies at least one of the type and function of the external device connected to the network are further provided, and the power supply control determination unit receives the power supply control command from the external device. In this case, based on the information of the determination information recording unit, it is determined whether to enable or disable the execution of the power control command, and the type and function of the external device identified by the external device identification unit. At least one piece of information is used to identify whether or not the device is operated by the user, and if it is determined that the device is operated by the user, a power control command input from the outside is sent to the power control command. And outputs the section, it is characterized in that the output to the power control unit based on the power control signal inputted from outside to the determination result otherwise.

According to a fifth aspect of the invention of the present application, in the power control device according to the fourth aspect, the external device identification section stores an area for storing the type and function of each external device connected to the network. An information table having a condition control area for deciding whether or not to perform condition control based on the judgment information of the judgment information recording unit in response to a power supply control command input from each external device is generated. is there.

According to a sixth aspect of the present invention, in the power control device according to the first aspect, the determination information as to whether the power control command from the external device is valid or invalid is stored in advance for each functional block of the self device. A determination information recording unit and an external device identification unit that identifies at least one of the type and function of the external device connected to the network are further provided, and the power supply control determination unit receives the power supply control command from the external device. In this case, based on the information of the determination information recording unit, it is determined whether to enable or disable the execution of the power control command, and the type and function of the external device identified by the external device identification unit. According to at least one of the information, it is identified whether or not the device is operated by the user, it is determined whether or not the external device is in the operation state by the user, and it is determined that the device is operated by the user. If the user is operating or if the user is operating, a power control command input from the outside is output to the power control unit, and in other cases, the power control signal input from the outside is controlled based on the determination result. It is characterized in that it is output to the section.

According to a seventh aspect of the present invention, in the power control device according to the sixth aspect, the external device identification unit stores an area for storing the type and function of each external device connected to the network. An information table having a condition control area for deciding whether or not to perform condition control based on the judgment information of the judgment information recording unit in response to a power supply control command input from each external device is generated. is there.

According to an eighth aspect of the present invention, in the power supply control device according to the first aspect, determination information as to whether the power supply control command from the external device is valid or invalid is stored in advance for each functional block of the self device. A determination information recording unit and an external device identification unit that identifies at least one of the type and function of the external device connected to the network are further provided, and the power supply control determination unit receives the power supply control command from the external device. In this case, based on the information of the determination information recording unit, it is determined whether to enable or disable the execution of the power control command, and the type and function of the external device identified by the external device identification unit. According to at least one piece of information, it is identified whether or not the device is operated by the user, and whether or not the external device is in the operation state by the user, the external device is provided with a recording function, and reservation recording is being executed. If it is determined that the device is operated by the user, if it is in the operation state by the user or in the reserved recording state, the power supply control command input from the outside is output to the power supply control unit, and In other cases, the power supply control signal input from the outside is output to the power supply control unit based on the determination result.

According to a ninth aspect of the present invention, in the power supply control device according to the eighth aspect, the external device identification section stores an area for storing the type and function of each external device connected to the network. An information table having a condition control area for deciding whether or not to perform condition control based on the judgment information of the judgment information recording unit in response to a power supply control command input from each external device is generated. is there.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example in which a plurality of audio / video devices are connected to a network 1. Here, it is assumed that the VTR, TV, VCR, DVC, and PC are connected to the network 1. These devices may operate as the control device 2 themselves, as the controlled device 3, or as those having both functions. The PC is a personal computer and operates as the control device 2. VTR is a video tape recorder, TV is a television receiver having a tuner section and a monitor section including a CRT, VCR is a video camera recorder, DVC is a digital video camera, and both are controlled by the control device 2. It is assumed to have both functions of the target device 3.

When the audio / video device is provided with a function as a device to be controlled in order to control the power supply, a power-on command is transmitted through the network to control even if the user is not in the room such as reservation execution. It is possible to power on the target device. This overall configuration is common to each embodiment. Each embodiment will be described below.

(Embodiment 1) FIG. 2 is a block diagram showing a basic connection relationship of each device including a power supply control device according to Embodiment 1 of the present invention. As shown in FIG. 2, the control device 2 and the control target device 3A are connected via the network 1.
Are connected at least one set. The control device 2 and the controlled device 3A are, for example, home audio / video devices. The control side is called the control device 2 and the controlled device is called the control target device 3A even if the devices are the same in configuration.
Therefore, the control device 2 has a function of transmitting a control command for operating another device, and the controlled device 3 has a function of executing the transmitted control command.

The control device 2 comprises a command transmitting / receiving section 4S and a control section 5. The control unit 5 issues a power-on control command to the controlled device 3A and interprets the response content returned from the controlled device 3A. The command transmission / reception unit 4S transmits the control command output from the control unit 5 via the network 1 and receives a response from the controlled device 3A.

The controlled device 3A includes a command transmitting / receiving section 4
R, a command execution unit 6, a power supply control unit 9, and a block of the device itself are configured. The power supply control device of each embodiment includes at least the command transmission / reception unit 4R, the power supply control determination unit 8, and the power supply control unit 9.

The command execution unit 6 receives a control command from the control device 2 via the command transmission / reception unit 4R, determines the command type, and performs corresponding command processing. When the controlled device 3A is a TV, the command execution unit 6 is composed of a block including a channel selection control determination unit 7 that performs broadcast channel selection and a power supply control determination unit 8 that determines whether power is turned on or off. The configuration of such a command execution unit differs depending on the function of the device.

The power supply control determination unit 8 is composed of the command transmission / reception unit 4
Based on the power control command given via R, it is determined whether the power of each block is turned on or off, and the determination result is output to the power control unit 9. The power supply control unit 9 turns on / off the power of its own device at least in block units. If the controlled device 3A is a TV,
In addition to this, a tuner unit 11, a monitor unit 12, and the like are provided.

Here, the basic operation of the power supply control in the controlled device 3A will be described. The control device 2 instructs the controlled device 3A to turn on and off the power. Therefore, the control unit 5 generates a power-on command according to the command transmission format and outputs it to the network 1 via the command transmission / reception unit 4S.

Next, the controlled device 3A receives the control command addressed to itself by the command transmission / reception unit 4R, and the command execution unit 6 interprets the control command. Controlled device 3A
If the command format determines that the command is a power control command, the process shifts to the power control determination unit 8.
The power supply control determination unit 8 determines which block in the controlled device 3A is a command for turning on or off the power. Then, it outputs a command (power control command) for turning on or off the power of the corresponding block to the power control unit 9. Here, since the controlled device 3A is a TV, the power supply control unit 9 independently controls the power supply of the tuner unit 11 or the monitor unit 12 including the CRT. After the power control unit 9 turns on or off the power of a predetermined block,
The power supply control determination unit 8 generates the result according to the reply format, and the control device 2 via the command transmission / reception unit 4R.
Send to.

In the control device 2, the command transmitting / receiving section 4
S receives the response from the control target device 3A, and the control unit 5
To notify. As a result, the control device 2 is controlled by the control target device 3A.
You can know the completion of power-on and power-off operations of. By using such a control method, it is possible to control the power supply from a specific device connected to the network 1 to another device. In addition, the command format such as power control of IEEE1394 is based on the industry standardization organization 1394 Trade.
Association material, AV / C Digital Interface Command
The details are disclosed in Set General Specification, Version 3.0.

(Second Embodiment) Next, a power supply control device according to a second embodiment of the present invention will be described. FIG. 3 is a configuration diagram showing a basic connection relationship of each device including the power supply control device according to the second embodiment. Here, the same parts as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
The controlled device 3B includes a command transmission / reception unit 4R, a command unit 6 having a tuning control determination unit 7 and a power supply control determination unit 8, a power supply control unit 9, and a determination information recording unit 10
It is configured to include. If the controlled device 3B is a TV, a tuner unit 11 and a monitor unit 12 are provided.

The judgment information recording section 10 is composed of a non-volatile memory such as an EEPROM, and when the power control command is received from the outside, flag information for validating or invalidating the execution of the command is used as the judgment information. To hold. For example, even if a power control command is issued from an external device, the flag is set to 0 when the command is invalid and is not executed, and the flag is set to 1 when the command is valid. At this time, the power supply control determination unit 8 reads the flag information from the determination information recording unit 10 in advance, and the control device 2
When the power supply control command is received from the power supply control command, the power supply control command is given to the power supply control unit 9 based on the flag information.

Further, when the power is turned on or off individually in each block in the controlled device 3B, the flag information for each block is set in the determination information recording section 10. For example, like a TV, a tuner unit 1 that performs a tuning operation
1. Assume a case where blocks are individually provided like the monitor unit 12 that displays an image and power control is performed for each block. In such a case, the power of each block can be turned on and off individually by a power control command from the external control device 2.

FIG. 4 shows the judgment information recording section 10 of this embodiment.
An example of the flag information recorded in FIG. In this figure, 2
Reference numeral 1 is block identification information, and 22 is flag information. Here, the controlled device 3B is a TV having a decoder for a communication satellite or a broadcasting satellite in the tuner section, and the block identification unit is the entire apparatus (UNIT), the tuner section (TUNE).
R), monitor (MONITOR), etc. As a flag indicating the presence or absence of power control, invalid is represented by 0 and valid is represented by 1. The block identification information 21 may be identified using a unique number in the device instead of a character string.

At this time, the entire device (UN
If the (IT) flag is 1, it is not necessary to check the flag value of each block, and all blocks accept power control. On the other hand, the flag of the whole device (UNIT) is 0
In the case of 1, the flag of each block belonging to the lower order is checked, and in the case of 1, the power control of the block is performed, and 0 is performed.
In the case of, the power supply control is not performed.

FIG. 5 is a flowchart showing an example of power-on processing when the controlled device 3B is a TV.
When the target device 3B receives the power-on control command from the control device 2 in step S1, the command execution unit 6
Starts interpreting the command. In step S2, information is read from the determination information recording unit 10. Next, if the command is to turn on the power to the unit, the process proceeds to step S4 to check the flag of the unit, and if it is 1, step S5
Branch to. When the process branches to step S5, the tuner unit 11 and the monitor unit 12 are powered on to control the power supply of the entire device. If the unit is not powered on in step S3, the process proceeds to step S6, and it is checked whether the command is a tuner power-on command. If it is this command, the process proceeds to step S7 and the determination information recording unit 10
Check the tuner's flags. If the unit flag is 0 in step S4, the process proceeds to step S8 to check the tuner flag of the determination information recording unit 10. Step S
If the tuner flag is 1 in S7 and S8, the process branches to step S9 to turn on the power of the tuner. If the tuner is not turned on in step S6, or if the tuner flag is 0 in step S7, the process proceeds to step S10 to check whether the command is to turn on the monitor. If it is a monitor power-on command, the flow advances to step S11 to check whether the monitor flag of the determination information recording unit 10 is 1 or not. If this flag is 1, the monitor is powered on in step S12. If the monitor is not turned on in steps S10 and S11, or if the monitor flag is not 1, the process ends. Although power-on is described here, power-off is also performed in the same manner, but in the case of power-off, the command may be followed.

If it is desired not to receive power control from the outside, the determination information recording section 10 in the controlled device 3B.
It is sufficient to set all the flag values of 0 to 0. Although the values of these flags are set in advance at the time of initial setting, they are displayed by a display device such as an LED or a function to be set using an on-screen display (OSD) of a television screen so that the user can freely set them. May be.

With such a control configuration, it is possible to judge the device which should not be powered on from the outside, and to judge whether the power can be turned on for each functional block. In particular, like a CRT of a TV, it is possible to individually control blocks that the user does not want to turn on when the user is not in the room. Therefore, for a TV that consumes a large amount of power as the CRT becomes larger, a great effect of contributing to device safety and power saving can be obtained.

(Third Embodiment) Next, a power supply control device according to a third embodiment of the present invention will be described. FIG. 6 is a configuration diagram showing a basic connection relationship of each device including the power supply control device according to the present embodiment. Here again, Embodiments 1 and 2
The same parts as those in FIG. The controlled device 3C of the present embodiment includes a command transmission / reception unit 4R, a command execution unit 6 having a tuning control determination unit 7 and a power supply control determination unit 8, a power supply control unit 9, and a determination information recording unit 10. In addition, the external device identification unit 13 is included. When the controlled device 3C is a TV, a tuner unit 11 and a monitor unit 12 are provided.

The external device identification section 13 checks all the control target devices connected to the network 1, that is, the audio / video devices, detects the type and function of each device, and creates an information table described later. is there. For audio / video equipment connected to IEEE1394, a command for checking the elements that make up the equipment is defined as an essential command.

For example, the SUBUNIT INFO command is used to check the functions of the equipment. The UNIT INFO command is used to check the typical function of the device to determine the type. Here the features include audio,
Monitors and disk recorders that are components of video equipment
/ Players, tape recorders / There is an electronic bulletin board (Bulletin Board, shown as BB on the drawing) called a resource schedule board that discloses reservation information inside players, tuners, cameras, and devices.

FIG. 7 is an example showing an information table showing the functional configurations and control states of all connected devices.
This table is provided with an identifier description field 23, a type description field 24 for each device, and a functional configuration description field 25.
This information table contains the UNIT INFO command and SUBUNIT INFO
Created using commands. For example, a TV generally requires a monitor and a tuner, and often includes a reservation function. SUBUNIT for TV including these
The response of INFO command is monitor, tuner, electronic bulletin board, the response by UNIT INFO command is monitor,
The type is TV. When a new device is connected to the network, the external device identification unit 13 not only outputs the UNIT INFO command and the SUBUNIT INFO command but also the audio
Using commands standardized for video equipment
Get detailed information of the device like. For example, identifier 003
TVs have monitors and tuners. Also identifier 00
The TV of 4 has a tuner, a monitor, and an electronic bulletin board.

Further, control condition description columns 26 and 2 for power supply control
7 is added to the above table. In the unconditional uncontrolled entry field 26, DVC with identifier 007 and AM with identifier 009 are listed.
A DVD player or the like with P and identifier 010 is registered.
The devices with identifier 007 and identifier 009 do not have monitors, etc.
It is not necessary to control so that some function blocks are not powered on contrary to the control command. In this case, the control command from the control device 2 is entirely accepted. On the other hand, in the description column 27 of the conditional control, the identifier 001, the tuner of the identifier 002, the TVs of the identifiers 003 and 004, the identifier 005, the identifier
DVHS etc. of 006 are registered. It is considered that these devices need to be controlled so as not to turn on power to some of the functional blocks contrary to the control command. Therefore, even if the control target device receives the power control command for turning on the power of the entire device, the power control of each block is performed according to the rule registered in the determination information recording unit 10.

The device-specific identifier is IEEE1394 Extend.
It is desirable to use ed Unique Identifier64 (EUI64). Here, the type of device in the description column 24 and the description column 25
The functional configuration of the device is shown by a character string for convenience. But,
It is possible to save memory by using the Subunit ID described in the 1394TA document.

By writing these pieces of information in a non-volatile memory such as an EEPROM, it is possible to eliminate the need for the device once identified to check it again. In the case of a tape recorder / player as a device-specific command for device recognition in the device to be controlled, the output signal mode and tape recording format are used to identify the digital VHS or DV from the data format that the device can handle. You can

The operation of the power supply control device configured as described above will be described in detail with reference to the flowchart of FIG. In the power supply control determination unit 8 of the controlled device 3C in FIG.
When the power-on control command is received from the control device 2, the type of the control device 2 is acquired from the external device identification unit 13. In step T1, the power supply control unit 9 of FIG. 6 checks whether the control device 2 that has transmitted the control command is a device of which device type can be identified or is not.

In the case of an identifiable device in step T1, after identifying the type of the device, the process proceeds to step T2 to check whether or not the functional configuration is identifiable. This can be understood by referring to the description column 25 corresponding to the identifier in FIG. If the functional configuration is identifiable in step T2, the process proceeds to step T3, and it is checked based on the unconditional control entry column 26 in the table of FIG. 7 whether the device involves a user operation. DVC with identifier 007 and AMP with identifier 009
If the device requires user operation, such as
4, the power supply control according to the control command is performed. The DV of the identifier 007 shown in FIG.
When it is clear that the controlled device 3C operates by a user's operation such as C (digital video camera), DVD player with identifier 010, the power control determination unit 8 stores information held by the determination information recording unit 10. Not used. In this case, the power supply control determination unit 8 issues a power supply control command to the power supply control unit 9 based on the received power supply control command. Accordingly, the user of the control device 2 determines that a person is present in the vicinity of the control target device 3C, and turns on or off the power.

In step T3, if the device does not require user operation, the process proceeds to step T5, and it is checked whether or not the device has a recording function. This can be judged from the content of the description column 25 in FIG. If not equipped with a recording function, step T4
Then, the power supply control of the designated functional block is performed. This is to perform power control according to the obtained command without referring to the content of the determination information recording unit 10. When the recording function is provided, the process proceeds to step T6 to check the device status.

FIG. 9 shows an example of the state of the device. When the device is DVHS, the user operation state is any one of reproduction, fast-forward reproduction, rewind reproduction, fast-forward, rewind, and the like.
Even when the device is a DVD player, the type of media is different, but there are states of reproduction, fast-forward reproduction, and rewind reproduction, which are almost the same as in DVHS. When the device is a TV, only the monitor is turned on by the user.

If the device state is a user operation in step T6, the process proceeds to step T4, and if it is not a user operation, the process proceeds to step T7. In step T7, it is checked whether or not the reservation information can be acquired in the recording state. If the reservation information cannot be acquired, the process proceeds to step T9. If the reservation information can be acquired, the process proceeds to step T8. In step T8, it is checked whether or not the reservation is being executed. If the reservation is being executed, the process proceeds to step T9. On the other hand, step T1
If the device configuration cannot be identified in step T2, or if the device configuration cannot be identified in step T2, the process proceeds to step T9. In step T9, the power supply control is performed based on the information and the control command of the determination information recording unit 10 of FIG. 6 as in the second embodiment. If the reservation is not being executed, the process proceeds to step T4 to control the power supply of the designated block. As a result, the power supply can be controlled according to the type and function of the external device and the usage state.

In this embodiment, the power source is controlled on the basis of the information in the judgment information recording section 10 in step T9, but all the devices without the judgment information storage section 10 reach step T9. It can be configured to ensure safety by not executing the power-on command of.

The present invention is not limited to the above embodiments, and various design changes and modifications can be made within the scope of the claims of the present invention.

[0048]

As described above, according to the present invention, the power supply control from the external device connected to the network can be performed by judging from the setting information of the own device and the function of the partner device. Especially when the device is an audio / video device, power-on control can be performed for the entire device or for each required block in the device. Thereby, the power source can be operated from the external device in consideration of safety and power saving.

[Brief description of drawings]

FIG. 1 is a system configuration diagram showing a system in which a plurality of audio / video devices are connected to a network.

FIG. 2 is a system configuration diagram of a control target device and a control device including the power supply control device according to the first embodiment of the present invention.

FIG. 3 is a system configuration diagram of a control target device and a control device including a power supply control device according to a second embodiment of the present invention.

FIG. 4 is an explanatory diagram of information held in a determination information recording unit in the power supply control device according to the second embodiment.

FIG. 5 is a flowchart showing an example of a processing procedure for turning on power based on determination information in the power supply control device according to the second embodiment.

FIG. 6 is a system configuration diagram of a control target device and a control device including a power supply control device according to a third embodiment of the present invention.

FIG. 7 is an explanatory diagram of information held by an external device identification unit in the power supply control device according to the third embodiment.

FIG. 8 is a flowchart showing an example of a processing procedure for turning on the power in the power control device according to the third embodiment.

FIG. 9 is an explanatory diagram showing a state example of a connection partner device in the power supply control device according to the third embodiment.

[Explanation of symbols]

1 network 2 control equipment 3A to 3C controlled device 4S, 4R command transceiver 5 control unit 6 Command execution part 7 Tuning control judgment unit 8 Power control judgment section 9 Power control unit 10 Judgment information recording section 11 Tuner section 12 Monitor 13 External device identification section

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H04Q 9/00 341 H04N 5/76 Z // H04N 5/76 G06F 1/00 334P F term (reference) 5B011 DA01 EA10 FF04 MA13 5C025 BA26 BA27 BA30 DA08 5C026 EA07 5C052 AA01 CC06 DD10 5K048 AA16 BA03 DC04 EB02 HA02 HA32

Claims (9)

[Claims] 1. A power supply control device for controlling the power supply of its own device comprising at least one functional block by a power supply control command from an external device connected to a network, receiving a power supply control command of the external device, A command transmitting / receiving unit that transmits a response of the own device, a power control unit that turns on / off the power of the own device in at least block units, and each block based on a power control command given through the command transmitting / receiving unit. And a power supply control determination unit that outputs the determination result to the power supply control unit. 2. A determination information recording unit is further provided that stores in advance, for each functional block of the device, determination information indicating whether to enable or disable a power control command from an external device, wherein the power control determination unit is an external device. When a power control command from a device is received, it is determined whether to enable or disable the execution of the power control command based on the information in the determination information recording unit, and the power is supplied only to a valid block. 2. The power supply control device according to claim 1, wherein the power supply of each block is turned on and off based on a control command, and the judgment result is output to the power supply control unit. 3. The determination information recording unit includes a flag for determining whether to enable a functional block of the entire device, and a flag for determining whether to enable or disable a control command for each functional block. And 2.
The power supply control device described. 4. A determination information recording unit that stores in advance, for each functional block, determination information indicating whether to enable or disable a power control command from an external device, a type of external device connected to a network, and An external device identification unit that identifies at least one of the functions is further provided, and the power supply control determination unit is configured to control the power supply based on information in the determination information recording unit when a power supply control command from an external device is received. It is determined whether to enable or disable the execution of the command, and whether the device is operated by the user according to the information of at least one of the type and function of the external device identified by the external device identification unit. If it is determined that the device is operated by the user, the power supply control command input from the outside is output to the power supply control unit. In other cases, the power supply control input from the outside is output. The power supply control device according to claim 1, wherein a control signal is output to the power supply control unit based on the determination result. 5. The external device identification unit stores, for each external device connected to the network, an area for storing the type and function of the external device and the determination information for a power control command input from each external device. The power supply control device according to claim 4, wherein an information table having a condition control area that determines whether or not condition control is performed based on the determination information of the recording unit is generated. 6. A determination information recording unit that stores in advance, for each functional block, determination information indicating whether to enable or disable a power control command from an external device, a type of external device connected to a network, and An external device identification unit that identifies at least one of the functions is further provided, and the power supply control determination unit is configured to control the power supply based on information in the determination information recording unit when a power supply control command from an external device is received. It is determined whether to enable or disable the execution of the command, and whether the device is operated by the user according to the information of at least one of the type and function of the external device identified by the external device identification unit. If it is determined that the external device is operated by the user and if the external device is operated by the user, or if the external device is operated by the user, the external device is input from the outside. 2. The power supply control command applied is output to the power supply control unit, and in other cases, a power supply control signal input from the outside is output to the power supply control unit based on the determination result. Power controller. 7. The external device identification unit stores, for each external device connected to the network, an area for storing the type and function of the external device and the determination information for a power control command input from each external device. 7. The power supply control device according to claim 6, wherein an information table having a condition control area that determines whether or not condition control is performed based on the determination information of the recording unit is generated. 8. A determination information recording unit that stores in advance, for each functional block of the device, determination information indicating whether to enable or disable a power control command from an external device, a type of the external device connected to the network, and An external device identification unit that identifies at least one of the functions is further provided, and the power supply control determination unit is configured to control the power supply based on information in the determination information recording unit when a power supply control command from an external device is received. It is determined whether to enable or disable the execution of the command, and whether the device is operated by the user according to the information of at least one of the type and function of the external device identified by the external device identification unit. It is determined whether or not the external device is in the operation state by the user, and whether or not the external device has a recording function and is performing reservation recording, and it is determined that the device is operated by the user. In the case of the operation state by the user or in the case of the reserved recording state, the power supply control command input from the outside is output to the power supply control unit, otherwise, the power supply control signal input from the outside is used as the determination result. The power supply control device according to claim 1, wherein the power supply control unit outputs the power supply to the power supply control unit. 9. The external device identification unit stores, for each external device connected to the network, an area for storing the type and function of the external device and the determination information for a power control command input from each external device. 9. The power supply control device according to claim 8, wherein an information table having a condition control area that determines whether to perform condition control based on the determination information of the recording unit is generated.