CN103702192A - Power-saving set top box and power-saving method thereof - Google Patents
Power-saving set top box and power-saving method thereof Download PDFInfo
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Abstract
The invention provides a power-saving set top box and a power-saving method applied to the set top box. The power-saving set top box comprises an HDMI (high-definition multimedia interface) input port, an analog output port, an HDMI drive module, an analog drive module and a power module, wherein the HDMI input port and the analog output port are used for providing audio/video data for a television; the power module is used for supplying power to the HDMI drive module and the analog drive module. The power-saving set top box also comprises a data detection module, a control module and a power management module, wherein the data detection module is used for detecting whether the HDMI output port is connected with the television or not; the control module is used for generating a first control signal when the HDMI output port is connected with the television; the power management module is used for controlling the power module according to the first control signal to supply power to the HDMI drive module, and meanwhile, cutting off the power supply performed on the analog drive module by the power module.
Description
Technical field
The present invention relates to field of set-top, relate in particular to a kind of Set Top Box and electricity saving method thereof of power saving.
Background technology
Traditional tv is only used to provide the broadcasting of TV programme, its function singleness, and result of broadcast and mode of operation all can not meet people for the requirement of Digital Life.People need to utilize TV to realize the various digital applications services such as play-on-demand program, digital content download, interactive entertainment, weather forecast are watched, video calling, because Set Top Box can be assisted TV above-mentioned service is provided, therefore increasing family purchases Set Top Box.
Existing Set Top Box is divided into high definition set top box and SD Set Top Box, high definition set top box is for SD Set Top Box, except possessing the analog-driven that SD Set Top Box can provide, can also provide decoding and the driving of high-definition multimedia (HDMI) audio frequency and video.
High definition set top box due to decoder module and driver module numerous, the enhancing of function, the raising of performance, its power consumption is larger.But along with the demand of environmental protection, people are also more and more higher for the requirement of low-carbon (LC) life.How to reduce power consumption and become the new requirement that high definition set top box can be widely used in family.
Summary of the invention
In view of this, the object of this invention is to provide a kind of Set Top Box of power saving and be applied to the electricity saving method of Set Top Box.
For achieving the above object, the invention provides technical scheme as follows:
A Set Top Box for power saving, comprises to TV and the HDMI output port of audio, video data and analog output mouth, HDMI driver module and analog-driven module is provided and to the power module of described HDMI driver module and analog-driven module for power supply, also comprises:
Data detection module, for detection of described HDMI output port connecting TV machine whether;
Control module, for when the described HDMI output port connecting TV machine, produces the first control signal;
Power management module, gives described HDMI driver module power supply for control described power module according to described the first control signal, cuts off the power supply of analog-driven module described in described electric power source pair of module simultaneously.
Further, power management module of the present invention comprises switch control unit, the control end of described switch control unit connects described control module, and the input of described switch control unit connects described power module, and output connects respectively described HDMI driver module and analog-driven module;
When the control end of described switch control unit 181 receives the first control signal, the connection line formation of controlling described power module and described analog-driven module opens circuit, and the connection line of simultaneously controlling described power module and described HDMI driver module forms path.
Further, control module of the present invention also for:
When described HDMI output port does not have connecting TV machine, produce the second control signal;
Power management module is also given described analog-driven module for power supply for control described power module according to described the second control signal, cuts off the power supply of HDMI driver module described in described electric power source pair of module simultaneously.
Further, when the control end of switch control unit of the present invention receives the second control signal, the connection line formation of controlling described power module and described HDMI driver module opens circuit, and the connection line of simultaneously controlling described power module and described analog-driven module forms path.
Further, switch control unit of the present invention be can reception control signal analog switch device.
The present invention also provides a kind of electricity saving method that is applied to Set Top Box, described Set Top Box comprises to TV provides the HDMI output port of audio, video data and analog output mouth, HDMI driver module and analog-driven module and to the power module of described HDMI driver module and analog-driven module for power supply, described method comprises:
Detect whether connecting TV machine of described HDMI output port;
If described HDMI output port connecting TV machine, produces the first control signal;
According to described the first control signal, control described power module to the power supply of HDMI driver module, cut off the power supply of described electric power source pair of module analog-driven module simultaneously.
Further, of the present inventionly according to the first control signal, control described power module to HDMI driver module power supply, the power supply of simultaneously cutting off described electric power source pair of module analog-driven module comprises:
While receiving first signal, the connection line formation of controlling described power module and described analog-driven module opens circuit, and the connection line of simultaneously controlling described power module and described HDMI driver module forms path.
Further, the method for the invention also comprises:
If described HDMI output port does not have connecting TV machine, produce the second control signal;
According to described the second control signal, control described power module and give described analog-driven module for power supply, cut off the power supply of HDMI driver module described in described electric power source pair of module simultaneously.
Further, of the present inventionly according to the second control signal, control described power module and give described analog-driven module for power supply, cut off the power supply of HDMI driver module described in described electric power source pair of module simultaneously and comprise:
While receiving secondary signal, the connection line formation of controlling described power module and described HDMI driver module opens circuit, and the connection line of simultaneously controlling described power module and described analog-driven module forms path.
Further, analog-driven module of the present invention comprises: CVBS video drive unit, component vide driver element, S terminal video drive unit and audio driven unit.
Even if due to the HDMI output port connecting TV machine of Set Top Box in prior art, the power module of Set Top Box still can, to analog-driven module for power supply, cause the consumption of electric energy.With in prior art, compare, the present invention, when the HDMI of Set Top Box output port connecting TV machine, sends the first control signal, the power supply of the module of cutting off the electricity supply to analog-driven module, power module is only powered for HDMI driver module, thereby can saves energy.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Set Top Box of power saving of the present invention;
Fig. 2 and Fig. 3 are the structural representations of switch control unit of the present invention;
Fig. 4 is the flow chart of the set-top box control method of power saving of the present invention.
Embodiment
The present invention, when the HDMI of Set Top Box output port connecting TV machine, sends the first control signal, the power supply of the module of cutting off the electricity supply to analog-driven module, and power module is only the power supply of HDMI driver module, thereby can saves energy.
Below in conjunction with accompanying drawing, describe the present invention.
Embodiment mono-
Referring to Fig. 1, the invention provides a kind of Set Top Box 1 of power saving, comprise to TV and provide the HDMI output port 11 of audio, video data and analog output mouth 12, HDMI driver module 13 and analog-driven module 14 and to the power module 15 of HDMI driver module 13 and 14 power supplies of analog-driven module.
If the TV that Set Top Box 1 connects is HDTV (High-Definition Television), namely there is the TV of HDMI interface, the HDMI interface of HDMI output port 11 connecting TVs by Set Top Box, to watch high-definition multimedia audio, video data.But meanwhile, still have Standard Definition Television, have the TV of SD interface, so still have analog output mouth 12 in Set Top Box, the analog output mouth 12 of Set Top Box still can connect the SD interface of Standard Definition Television machine.Because Set Top Box both can connect the high-definition interface of HDTV, also can connect the SD interface of Standard Definition Television machine, in Set Top Box, except possessing HDMI driver module, also to possess analog-driven module.The power module 15 of Set Top Box will be given HDMI driver module 13 and 14 power supplies of analog-driven module.
But a Set Top Box connects a television set conventionally, television set is HDTV or Standard Definition Television machine, Set Top Box HDMI output port 11 or analog output mouth 12 connecting TV machines.Therefore, during Set Top Box HDMI output port 11 connecting TV machine, power module 15, except being HDMI driver module 13 power supply, be still 14 power supplies of analog-driven module, but analog output mouth 12 connecting TV machine not, so cause power consumption excessive.
In order to save the power consumption of Set Top Box 1, Set Top Box 1 also comprises:
If the HDMI output port of Set Top Box 1 11 connecting TV machines, show that the television set that Set Top Box 1 connects is HDTV, need to export HMDI audio, video data.
Can certainly be set as the first control signal is high level signal, and the power supply of 15 pairs of analog-driven modules 14 of the module of cutting off the electricity supply, only powers to HDMI driver module.
Like this, when the HDMI of Set Top Box output port connecting TV machine, send the first control signal, the power supply of 15 pairs of analog-driven modules 14 of the module of cutting off the electricity supply, power module 15 is only 13 power supplies of HDMI driver module, thereby can saves energy.
Embodiment bis-
Referring to Fig. 2, preferably, power management module 18 comprises switch control unit 181, the control end link control module 17 of switch control unit 181, the input of switch control unit 181 connects power module 15, and output connects respectively HDMI driver module 13 and analog-driven module 14.
When the control end of switch control unit 181 receives the first control signal, make the connection line formation of power module 15 and analog-driven module 14 open circuit, and make the connection line of power module 15 and HDMI driver module 13 form path.
When control module 17 sends low level signal to the control end of switch control unit 181, telegraph key closing direction in control switch control unit 181, make the connection line of power module 15 and analog-driven module 14 for opening circuit, the circuit between the module of cutting off the electricity supply 15 and analog-driven module 14 connects; Make the connection line of power module 15 and HDMI driver module 13 form path, power module 15 is connected with HDMI driver module 13 holding circuits.
Thereby employing switch control unit 181 controls the connection line of power module 15 and HDMI driver module 13 according to the first control signal and the connection line of power module 15 and analog-driven module 14 is path by above-mentioned connection line or opens circuit, realize and control whether power module 15 is HDMI driver module 13 and 14 power supplies of analog-driven module.Than prior art, switch control unit 181 circuit design of the present invention are simple, and to control signal fast response time.
If HDMI output port 11 does not have connecting TV machine, produce the second control signal, control module 17 sends to power management module 18 by the second control signal.Particularly, control module 17 can be exported by its GPIO(universal input) port sends the second control signal, and the second control signal can be level signal.
Certainly, it is the cut off the electricity supply power supply of 15 pairs of HDMI driver modules 13 of module of low level signal that power management module 18 also can be set to the second control signal, only powers to analog-driven module 14.
Referring to Fig. 3, when the control end of switch control unit 181 receives secondary signal, make the connection line formation of power module 15 and HDMI driver module 13 open circuit, and make the connection line of power module 15 and analog-driven module 14 form path.
When control module 17 sends high level signal to the control end of switch control unit 181, telegraph key closing direction in control switch control unit 181, make the connection line of power module 15 and HDMI driver module 13 for opening circuit, the circuit between the module of cutting off the electricity supply 15 and HDMI driver module 13 connects; Make the connection line of power module 15 and analog-driven module 14 form path, power module 15 is connected with analog-driven module 14 holding circuits.
Therefore, the present embodiment is except realizing when the HDMI of the Set Top Box output port connecting TV machine, controlling power module 15 is only outside 13 power supplies of HDMI driver module, when the HDMI output port that can also realize in Set Top Box does not have connecting TV machine, controlling power module 15 is only 14 power supplies of analog-driven module.
Wherein, switch control unit 181 is preferably analog switch device that can reception control signal, for example, can be field effect transistor etc., adopts field effect transistor as analog switch device, and with low cost, circuit design is simple.
Analog-driven module 14 comprises: CVBS video drive unit, component vide driver element, S terminal video drive unit and audio driven unit.
Analog-driven module 14 is by power module power supply 15, and while carrying out work, CVBS video drive unit, component vide driver element, S terminal video drive unit and audio driven unit all carry out work.
CVBS(composite video signal, Composite Video Blanking Synchronization) video drive unit, for CVBS signal is carried out to filtering processing.
Component vide driver element, refers in particular to red, green, blue in vision signal (Y, R-Y, B-Y) three primary colors is carried out to transmission of video information with stand-alone interface form, for component signal is carried out to filtering processing.
S terminal video drive unit, refers to the analog video output format of brightness and chrominance separation output.
Audio driven unit, for amplifying processing to voice data.
Embodiment tri-
Corresponding to said apparatus, the present invention also provides a kind of electricity saving method that is applied to Set Top Box, and Set Top Box comprises to TV provides the HDMI output port of audio, video data and analog output mouth, HDMI driver module and analog-driven module and to the power module of HDMI driver module and analog-driven module for power supply.
Referring to Fig. 4, method comprises:
401, detect whether connecting TV machine of HDMI output port.
Because a Set Top Box only connects a television set conventionally, the present invention, by detecting whether connecting TV machine of HDMI output port, judge whether Set Top Box connects HDTV, as Set Top Box connection HDTV, needs to export HDMI audio, video data.
If 402 HDMI output port connecting TV machines, produce the first control signal.
If Set Top Box connects HDTV, the HDMI output port connecting TV machine of Set Top Box, produces the first control signal.
403, according to the first control signal, make power module to the power supply of HDMI driver module, and the power supply of module to analog-driven module of cutting off the electricity supply.
Because even if Set Top Box in prior art connects HDTV (High-Definition Television), Set Top Box, by its HDMI output port output HDMI audio, video data, only needs the work of HDMI driver module, that is to say and only needs power module to power to HDMI driver module.But prior art power module is still analog-driven module for power supply, and this causes the power consumption of Set Top Box excessive.
And the present invention, controls power module only to power for HDMI driver module during by its HDMI output port output HDMI audio, video data in Set Top Box, be not analog-driven module for power supply, thereby can reduce the power consumption of Set Top Box.
Step 403 comprises:
While receiving first signal, make the connection line formation of power module and analog-driven module open circuit, and make the connection line of power module and HDMI driver module form path.
The present invention makes the connection line formation of power module and analog-driven module open circuit, thereby guarantees that power module is not that analog-driven module for power supply is to save the power consumption of Set Top Box.Meanwhile, make the connection line of power module and HDMI driver module form path, guarantee that power module continues as the power supply of HDMI driver module, Set Top Box can be exported HDMI audio, video data.
Thereby the present invention controls the connection line of power module and HDMI driver module and the connection line of power module and analog-driven module is path by above-mentioned connection line or opens circuit, realize and control whether power module is HDMI driver module 13 and analog-driven module for power supply.Than prior art, circuit design of the present invention is simple, easy to operate.
Method also comprises:
If 404 tv programme sources are not high-definition multimedia audio, video datas, produce the second control signal.
Because even if Set Top Box in prior art connects HDTV (High-Definition Television), Set Top Box, by its HDMI output port output HDMI audio, video data, does not show that the television set that Set Top Box connects is Standard Definition Television machine, and Set Top Box is by analog output mouth connecting TV machine.
405, according to the second control signal, make power module to analog-driven module for power supply, and the power supply of module to HDMI driver module of cutting off the electricity supply.
At this moment, the television set that Set Top Box connects is Standard Definition Television machine, and Set Top Box, by analog output mouth connecting TV machine, only needs the work of analog-driven module, that is to say and only needs power module to analog-driven module for power supply.When the present invention exports analog audio-video audio data in Set Top Box by its analog output mouth, controlling power module is only analog-driven module for power supply, is not the power supply of HDMI driver module, thereby can reduce the power consumption of Set Top Box.
Step 405 is drawn together:
While receiving secondary signal, make the connection line formation of power module and HDMI driver module open circuit, and make the connection line of power module and analog-driven module form path.
The present invention makes the connection line formation of power module and HDMI driver module open circuit, thereby assurance power module does not power to save the power consumption of Set Top Box for HDMI driver module.Meanwhile, make the connection line of power module and analog-driven module form path, guarantee that power module continues as analog-driven module for power supply, Set Top Box can be exported analog audio-video audio data.
Thereby the present invention controls the connection line of power module and HDMI driver module and the connection line of power module and analog-driven module is path by above-mentioned connection line or opens circuit, realize and control whether power module is HDMI driver module 13 and analog-driven module for power supply.Simple, easy to operate than prior art circuit design of the present invention.
Analog-driven module comprises: CVBS video drive unit, component vide driver element, S terminal video drive unit and audio driven unit.
Analog-driven module is powered by power module, and while carrying out work, CVBS video drive unit, component vide driver element, S terminal video drive unit and audio driven unit all carry out work.
These are only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (10)
1. the Set Top Box of a power saving, comprise to TV and provide the HDMI output port of audio, video data and analog output mouth, HDMI driver module and analog-driven module and to the power module of described HDMI driver module and analog-driven module for power supply, it is characterized in that, also comprise:
Data detection module, for detection of described HDMI output port connecting TV machine whether;
Control module, for when the described HDMI output port connecting TV machine, produces the first control signal;
Power management module, gives described HDMI driver module power supply for control described power module according to described the first control signal, cuts off the power supply of analog-driven module described in described electric power source pair of module simultaneously.
2. Set Top Box as claimed in claim 1, it is characterized in that, described power management module comprises switch control unit, the control end of described switch control unit connects described control module, the input of described switch control unit connects described power module, and output connects respectively described HDMI driver module and analog-driven module;
When the control end of described switch control unit receives the first control signal, the connection line formation of controlling described power module and described analog-driven module opens circuit, and the connection line of simultaneously controlling described power module and described HDMI driver module forms path.
3. Set Top Box as claimed in claim 2, is characterized in that, described control module also for:
When described HDMI output port does not have connecting TV machine, produce the second control signal;
Power management module is also given described analog-driven module for power supply for control described power module according to described the second control signal, controls the power supply of cutting off HDMI driver module described in described electric power source pair of module simultaneously.
4. Set Top Box as claimed in claim 3, is characterized in that,
When the control end of described switch control unit receives the second control signal, the connection line formation of controlling described power module and described HDMI driver module opens circuit, and the connection line of simultaneously controlling described power module and described analog-driven module forms path.
5. Set Top Box as claimed in claim 1, is characterized in that, described switch control unit be can reception control signal analog switch device.
6. an electricity saving method that is applied to Set Top Box, described Set Top Box comprises to TV provides the HDMI output port of audio, video data and analog output mouth, HDMI driver module and analog-driven module and to the power module of described HDMI driver module and analog-driven module for power supply, it is characterized in that, described method comprises:
Detect whether connecting TV machine of described HDMI output port;
If described HDMI output port connecting TV machine, produces the first control signal;
According to described the first control signal, control described power module to the power supply of HDMI driver module, cut off the power supply of described electric power source pair of module analog-driven module simultaneously.
7. method as claimed in claim 6, is characterized in that, describedly according to the first control signal, makes described power module to HDMI driver module power supply, and the power supply of cutting off described electric power source pair of module analog-driven module comprises:
While receiving first signal, the connection line formation of controlling described power module and described analog-driven module opens circuit, and the connection line of simultaneously controlling described power module and described HDMI driver module forms path.
8. method as claimed in claim 7, is characterized in that, described method also comprises:
If described HDMI output port does not have connecting TV machine, produce the second control signal;
According to described the second control signal, control described power module and give described analog-driven module for power supply, cut off the power supply of HDMI driver module described in described electric power source pair of module simultaneously.
9. method as claimed in claim 8, is characterized in that,
Describedly according to the second control signal, control described power module and give described analog-driven module for power supply, cut off the power supply of HDMI driver module described in described electric power source pair of module simultaneously and comprise:
While receiving secondary signal, the connection line formation of controlling described power module and described HDMI driver module opens circuit, and the connection line of simultaneously controlling described power module and described analog-driven module forms path.
10. method as claimed in claim 6, is characterized in that, described analog-driven module comprises: CVBS video drive unit, component vide driver element, S terminal video drive unit and audio driven unit.
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| CN201310732072.0A CN103702192A (en) | 2013-12-20 | 2013-12-20 | Power-saving set top box and power-saving method thereof |
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| CN201310732072.0A CN103702192A (en) | 2013-12-20 | 2013-12-20 | Power-saving set top box and power-saving method thereof |
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| CN106412475A (en) * | 2016-12-02 | 2017-02-15 | 湖南国科微电子股份有限公司 | Set top box automatic energy-saving control method and system, and set top box |
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