CN202998373U - Audio and video equipment intelligent power supply management system - Google Patents
Audio and video equipment intelligent power supply management system Download PDFInfo
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- CN202998373U CN202998373U CN 201220704559 CN201220704559U CN202998373U CN 202998373 U CN202998373 U CN 202998373U CN 201220704559 CN201220704559 CN 201220704559 CN 201220704559 U CN201220704559 U CN 201220704559U CN 202998373 U CN202998373 U CN 202998373U
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Abstract
The utility model discloses an audio and video equipment intelligent power supply management system, comprising audio and video equipment, a control module and a detection circuit and also comprising a power supply management circuit for controlling power on and off; and / or the audio and video equipment comprises a processing unit running in a dormant state; a signal input terminal of the detection circuit is in connection with an audio and video output interface of the audio and video equipment; a signal output terminal of the detection circuit is in connection with a signal input terminal of the control module; a control signal output terminal of the control module is in connection with a control signal input terminal of the power management circuit; an output terminal of the power supply management circuit is in connection with a power supply input terminal of the audio and video equipment; and/or the control signal output terminal of the control module is in connection with the processing unit of the audio and video equipment. The audio and video equipment intelligent power supply management system intelligently manages the audio and video equipment through monitoring level changes of an audio and video output terminal; a user does not need to frequently operate the power supply of the audio and video equipment; the audio and video equipment automatically cuts off power or enters a standby mode while not working; the service life of the equipment can be prolonged and energy consumption can be reduced.
Description
[technical field]
The utility model relates to the audio ﹠ video equipment power management, relates in particular to a kind of audio ﹠ video equipment intelligent power management system.
[background technology]
(referred to as audio ﹠ video equipments) such as existing playing audio/video such as multimedia player, set-top box, television rod, HDMI Dongle is connected to the audio frequency and video external equipments such as television set, monitor or sound equipment by the HDMI interface.At the audio frequency and video external equipment, as television set shutdown or when switching to other input signal source, audio ﹠ video equipment is not having still power supply in manually-operated situation, the useful life of not only having reduced audio ﹠ video equipment, and waste electric energy.When television set switch operating state, all want the power supply of manual manual operation switch's audio ﹠ video equipment to bother very much again at every turn.
[summary of the invention]
The technical problems to be solved in the utility model be to provide a kind of user-friendly, can increase service life of equipment, save the audio ﹠ video equipment intelligent power management system of electric energy.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of audio ﹠ video equipment intelligent power management system, comprise audio ﹠ video equipment, control module and level sensitive circuit, comprise that also electric power management circuit and/or the audio ﹠ video equipment of controlling on/off comprise the processing unit that moves under resting state; The signal input part of level sensitive circuit connects the audio and video output interface of audio ﹠ video equipment, and the signal output part of level sensitive circuit connects the signal input part of control module; The control signal input of the control signal output termination electric power management circuit of control module, the power input of the output termination audio ﹠ video equipment of electric power management circuit, and/or the processing unit that moves under the control signal of control module output termination audio ﹠ video equipment resting state.
Above-described audio ﹠ video equipment intelligent power management system, comprise that electric power management circuit, the audio ﹠ video equipment of controlling on/off comprise the processing unit that moves under resting state, the Enable Pin of the control signal output termination electric power management circuit of described processing unit.
Above-described audio ﹠ video equipment intelligent power management system, the signal input part of level sensitive circuit connect SDA pin or the SCL pin of the audio and video output interface of audio ﹠ video equipment.
The hot plug that above-described audio ﹠ video equipment intelligent power management system, the signal input part of level sensitive circuit connect the audio and video output interface of audio ﹠ video equipment detects pin.
Above-described audio ﹠ video equipment intelligent power management system, audio and video output interface are the HDMI interfaces.
The utility model audio ﹠ video equipment intelligent power management system is by the variation of monitoring audio frequency and video output level, the operating state of intelligent management audio ﹠ video equipment, when in audio frequency and video external equipment when access, arranged, the power supply of ringing tone video equipment or switch to normal mode of operation from standby mode; When other input signal source is closed or switched to the audio frequency and video external equipment, cut off the audio ﹠ video equipment power supply or switch to standby mode.The user conveniently uses without the power supply of frequent operation audio ﹠ video equipment; Audio ﹠ video equipment auto-breaking or enter standby mode when not working can increase the useful life of equipment and reduce energy consumption, energy-conserving and environment-protective.
[description of drawings]
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the theory diagram of the utility model embodiment 1 audio ﹠ video equipment intelligent power management system.
Fig. 2 is the theory diagram of the utility model embodiment 2 audio ﹠ video equipment intelligent power management systems.
Fig. 3 is the theory diagram of the utility model embodiment 3 audio ﹠ video equipment intelligent power management systems.
Fig. 4 is the circuit diagram of 1 one physical circuits of the utility model embodiment.
Fig. 4 is the circuit diagram of 3 one physical circuits of the utility model embodiment.
Fig. 6 is the workflow diagram of the utility model embodiment 1 audio ﹠ video equipment intelligent power management system.
[embodiment]
In the embodiment 1 of Fig. 1 and the utility model audio ﹠ video equipment intelligent power management system shown in Figure 6, comprise the electric power management circuit of audio ﹠ video equipment, control module, level sensitive circuit and control on/off; The signal input part of level sensitive circuit connects the audio and video output interface of audio ﹠ video equipment, and the signal output part of level sensitive circuit connects the signal input part of control module; The control signal input of the control signal output termination electric power management circuit of control module, the power input of the output termination audio ﹠ video equipment of electric power management circuit.
Audio ﹠ video equipment can be multimedia player, set-top box, television rod, HDMI Dongle etc., and the audio and video output interface of audio ﹠ video equipment is connected to the audio frequency and video external equipments such as television set, monitor or sound equipment.
For example, television set connects playing audio/video by the HDMI interface, work as television boot-strap, and the input signal source of television set switches to the HDMI interface that playing audio/video connects, the voltage that level sensitive circuit detects HDMI interface hot plug detection pin (Hot Plug Detect) becomes high level by low level, the level variation that detects is input to control module, after treatment, control module output control signal is controlled electric power management circuit, with the power supply opening of playing audio/video; When television set shuts down or signal source switched to other equipment, the voltage that testing circuit detects the hot plug detection pin (Hot Plug Detect) of HDMI interface becomes low level by height, process judgement (postpone, confirm) through control module, close the power supply of playing audio/video.
Level sensitive circuit detects the variation of pin level except detecting hot plug, can also judge the operating position of HDMI interface by the serial communication situation (SDA, SCL pin) of HDMI interface, can realize equally the function of above-mentioned Based Intelligent Control power supply.
The physical circuit of the utility model embodiment 1 is metal-oxide-semiconductor Q1 as shown in Figure 4, and resistance R 1, R3 and capacitor C 1 form power switch circuit.The HDMI hot plug of audio ﹠ video equipment detects pin and meets single-chip microcomputer MCU(U2 by resistance R 2) the GP5 pin, main control chip power enable pin connects the GP3 pin of MCU (U2) by resistance R 30, the control signal output pin of single-chip microprocessor MCU (GP2 pin) connects the grid of metal-oxide-semiconductor Q1 by resistance R 3, the source electrode of metal-oxide-semiconductor Q1 connects power supply, and drain electrode connects the power input of audio ﹠ video equipment.
When the input signal source of television set switches to the HDMI interface that playing audio/video connects, when single-chip microprocessor MCU detects voltage that the hot plug of HDMI interface detects pin and becomes high level by low level, the control signal output pin output low level of single-chip microprocessor MCU, metal-oxide-semiconductor Q1 is open-minded, and playing audio/video is switched on power.
When television set shuts down or signal source switched to other equipment, the voltage that single-chip microprocessor MCU detects the hot plug detection pin of HDMI interface becomes low level by height, the control signal output pin output high level of single-chip microprocessor MCU, metal-oxide-semiconductor Q1 turn-offs, and closes the power supply of playing audio/video.
The voltage that need to ignore the hot plug detection pin of HDMI interface when playing audio/video, when holding tone video playback apparatus power supply continues to connect, main control chip power enable pin (POWER_EN) output particular level (may be defined as high level or low level), the GP3 pin of MCU detects the power enable signal of main control chip by R30, the control signal output pin output low level of single-chip microprocessor MCU, metal-oxide-semiconductor Q1 is open-minded, and playing audio/video is continued to switch on power.
In the embodiment 2 of the utility model audio ﹠ video equipment intelligent power management system shown in Figure 2, as different from Example 1, audio ﹠ video equipment comprises the processing unit that moves under resting state, the processing unit of the control signal output termination audio ﹠ video equipment of control module.The voltage that level sensitive circuit detects HDMI interface hot plug detection pin (Hot Plug Detect) becomes high level by low level, the level variation that detects is input to control module, after treatment, control module outputs a control signal to the processing unit of audio ﹠ video equipment, and processing unit wakes playing audio/video up; When television set shuts down or signal source switched to other equipment, the voltage that testing circuit detects the hot plug detection pin (Hot Plug Detect) of HDMI interface becomes low level by height, process judgement (postpone, confirm) through control module, control module outputs a control signal to the processing unit of audio ﹠ video equipment, and processing unit is controlled playing audio/video and entered resting state.
The function of level sensitive circuit and control module also can be play the main control integrated circuit of establishing by audio frequency and video and coordinate peripheral components complete detection and process.
In the embodiment 3 of the utility model audio ﹠ video equipment intelligent power management system shown in Figure 3, different from embodiment 1 and 2 is to comprise the electric power management circuit of audio ﹠ video equipment, control module, level sensitive circuit and control on/off.Audio ﹠ video equipment has the processing unit that moves under resting state; The signal input part of level sensitive circuit connects the audio and video output interface of audio ﹠ video equipment, and the signal output part of level sensitive circuit connects the signal input part of control module; The control signal input of the control signal output termination electric power management circuit of control module.The power input of the output termination audio ﹠ video equipment of electric power management circuit; The Enable Pin of the control signal output termination electric power management circuit of processing unit.The processing unit of audio ﹠ video equipment can send control signal, controls electric power management circuit work or does not work.Close in the situation that control electric power management circuit, control module output control signal is controlled electric power management circuit, with the power supply opening of playing audio/video or close.
The physical circuit of the utility model embodiment 3 as shown in Figure 5, audio ﹠ video equipment comprises the main control chip that moves under resting state, control module is triode Q7, level sensitive circuit is the bleeder circuit that resistance R 41 and R6 form, and electric power management circuit comprises metal-oxide-semiconductor Q2, resistance R 4, R5, R7, R8, capacitor C 3 and triode Q3.The source electrode of metal-oxide-semiconductor Q2 connects power supply, and drain electrode connects the power input of audio ﹠ video equipment.The HDMI hot plug of one termination audio ﹠ video equipment of resistance R 41 detects pin, the base stage of another termination triode Q7; The base stage of resistance R 6 one termination triode Q7, other end ground connection.The grounded emitter of triode Q7, collector electrode connect the grid of metal-oxide-semiconductor Q2 by resistance R 4.The HDMI hot plug that the control signal input pin of main control chip connects audio ﹠ video equipment detects pin, and the power enable pin of main control chip connects the base stage of triode Q3, the grounded emitter of triode Q3, the collector electrode of collector connecting transistor Q7 by resistance R 7; The collector electrode of triode Q3 connects power supply by resistance R 5.
When the input signal source of television set switches to the HDMI interface that playing audio/video connects, when the voltage that the hot plug of HDMI interface detects pin became high level by low level, R41, R6 made the Q7 conducting, and metal-oxide-semiconductor Q2 is open-minded, and playing audio/video is switched on power.
When television set shutdown or signal source is switched to other equipment, the voltage that the hot plug of HDMI interface detects pin becomes low level by height, R41, R6 make Q7 by, metal-oxide-semiconductor Q2 closes, with the playing audio/video deenergization.
The voltage that need to ignore the hot plug detection pin of HDMI interface when playing audio/video, when holding tone video playback apparatus power supply continues to connect, main control chip power enable pin (POWER_EN) output high level, make the Q3 conducting by R7, R8, metal-oxide-semiconductor Q2 is open-minded, and playing audio/video is continued to switch on power.
The utility model can also be applied in other audio ﹠ video equipment, and as with the multimedia player of HDMI interface, network player, set-top box, HDMI television rod etc., the principle of its realization is identical.
The utility model is managed the operating state of audio ﹠ video equipment intelligently by detecting audio ﹠ video equipment HDMI Interface status, be connected to the HDMI input port of television set by HDMI as audio ﹠ video equipment, when television set is opened and signal source is switched to corresponding HDMI input port, audio ﹠ video equipment can also work by self-opening power supply, or switches to normal mode of operation from standby mode; When other input signal source is closed or switched to television set, can or switch to standby mode with the audio ﹠ video equipment outage.
Claims (7)
1. audio ﹠ video equipment intelligent power management system, it is characterized in that, comprise audio ﹠ video equipment, control module and level sensitive circuit, comprise that also electric power management circuit and/or the audio ﹠ video equipment of controlling on/off comprise the processing unit that moves under resting state; The signal input part of level sensitive circuit connects the audio and video output interface of audio ﹠ video equipment, and the signal output part of level sensitive circuit connects the signal input part of control module; The control signal input of the control signal output termination electric power management circuit of control module, the power input of the output termination audio ﹠ video equipment of electric power management circuit, and/or the processing unit that moves under the control signal of control module output termination audio ﹠ video equipment resting state.
2. audio ﹠ video equipment intelligent power management system according to claim 1, it is characterized in that, comprise that electric power management circuit, the audio ﹠ video equipment of controlling on/off comprise the processing unit that moves under resting state, the Enable Pin of the control signal output termination electric power management circuit of described processing unit.
3. audio ﹠ video equipment intelligent power management system according to claim 1, is characterized in that, the signal input part of level sensitive circuit connects SDA pin or the SCL pin of the audio and video output interface of audio ﹠ video equipment.
4. audio ﹠ video equipment intelligent power management system according to claim 1, is characterized in that, the hot plug that the signal input part of level sensitive circuit connects the audio and video output interface of audio ﹠ video equipment detects pin.
5. audio ﹠ video equipment intelligent power management system according to claim 1, is characterized in that, audio and video output interface is the HDMI interface.
6. audio ﹠ video equipment intelligent power management system according to claim 1, it is characterized in that, described control module is single-chip microcomputer, described level sensitive circuit comprises the second resistance, described electric power management circuit comprises the first metal-oxide-semiconductor, the control signal input pin of single-chip microcomputer detects pin by the HDMI hot plug that the second resistance connects audio ﹠ video equipment, and the control signal output pin of single-chip microcomputer connects the grid of the first metal-oxide-semiconductor; The source electrode of the first metal-oxide-semiconductor connects power supply, and drain electrode connects the power input of audio ﹠ video equipment.
7. audio ﹠ video equipment intelligent power management system according to claim 2, it is characterized in that, described control module comprises the 7th triode, and level sensitive circuit comprises by the 41 resistance and the 6th R, and electric power management circuit comprises the second metal-oxide-semiconductor and the 3rd triode; The source electrode of the second metal-oxide-semiconductor connects power supply, and drain electrode connects the power input of audio ﹠ video equipment; The HDMI hot plug of one termination audio ﹠ video equipment of the 41 resistance detects pin, the base stage of another termination the 7th triode; The base stage of the 6th resistance one termination the 7th triode, other end ground connection; The grounded emitter of the 7th triode, collector electrode connect the grid of the second metal-oxide-semiconductor by the 4th resistance; The HDMI hot plug that the control signal input pin of processing unit connects audio ﹠ video equipment detects pin, and the power enable pin of processing unit connects the base stage of the 3rd triode Q3 by the 7th resistance, the grounded emitter of the 3rd triode, and collector electrode connects the collector electrode of the 7th triode; The collector electrode of the 3rd triode also connects power supply by the 5th resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704559 CN202998373U (en) | 2012-12-18 | 2012-12-18 | Audio and video equipment intelligent power supply management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704559 CN202998373U (en) | 2012-12-18 | 2012-12-18 | Audio and video equipment intelligent power supply management system |
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| CN202998373U true CN202998373U (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220704559 Expired - Fee Related CN202998373U (en) | 2012-12-18 | 2012-12-18 | Audio and video equipment intelligent power supply management system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414933A (en) * | 2013-07-29 | 2013-11-27 | 华为技术有限公司 | Analog video signal output device and electronic device |
| CN104539990A (en) * | 2014-12-29 | 2015-04-22 | 深圳市九洲电器有限公司 | Set top box signal output control circuit and set top box |
| CN105681844A (en) * | 2016-01-07 | 2016-06-15 | 青岛海信信芯科技有限公司 | Multimedia playing terminal, control terminal and multimedia playing system |
| CN105812868A (en) * | 2016-03-30 | 2016-07-27 | 青岛海信电器股份有限公司 | Multimedia playing terminal, control terminal and multimedia playing system |
| CN107370978A (en) * | 2017-07-12 | 2017-11-21 | 广州视源电子科技股份有限公司 | A kind of control method, system and the storage medium of HDMI output equipments |
| CN108541054A (en) * | 2018-07-16 | 2018-09-14 | 深圳市本牛科技有限责任公司 | Keeping method, computer equipment and the storage medium of terminal low-power consumption |
-
2012
- 2012-12-18 CN CN 201220704559 patent/CN202998373U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414933A (en) * | 2013-07-29 | 2013-11-27 | 华为技术有限公司 | Analog video signal output device and electronic device |
| CN103414933B (en) * | 2013-07-29 | 2016-12-28 | 华为技术有限公司 | Analog video signal output device and electronic equipment |
| CN104539990A (en) * | 2014-12-29 | 2015-04-22 | 深圳市九洲电器有限公司 | Set top box signal output control circuit and set top box |
| CN104539990B (en) * | 2014-12-29 | 2017-12-29 | 深圳市九洲电器有限公司 | Set-top box signal output control circuit and set top box |
| CN105681844A (en) * | 2016-01-07 | 2016-06-15 | 青岛海信信芯科技有限公司 | Multimedia playing terminal, control terminal and multimedia playing system |
| CN105681844B (en) * | 2016-01-07 | 2019-07-05 | 青岛海信电器股份有限公司 | A kind of multimedia play terminal, controlling terminal and multimedia play system |
| CN105812868A (en) * | 2016-03-30 | 2016-07-27 | 青岛海信电器股份有限公司 | Multimedia playing terminal, control terminal and multimedia playing system |
| CN105812868B (en) * | 2016-03-30 | 2019-07-02 | 青岛海信电器股份有限公司 | A kind of multimedia play terminal, controlling terminal and multimedia play system |
| CN107370978A (en) * | 2017-07-12 | 2017-11-21 | 广州视源电子科技股份有限公司 | A kind of control method, system and the storage medium of HDMI output equipments |
| CN108541054A (en) * | 2018-07-16 | 2018-09-14 | 深圳市本牛科技有限责任公司 | Keeping method, computer equipment and the storage medium of terminal low-power consumption |
| CN108541054B (en) * | 2018-07-16 | 2020-12-18 | 深圳市本牛科技有限责任公司 | Terminal low power consumption keeping method, computer equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131218 |