CN1925584A - Energy-saving system and method for digital television receiving machine - Google Patents
Energy-saving system and method for digital television receiving machine Download PDFInfo
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- CN1925584A CN1925584A CNA2006100625802A CN200610062580A CN1925584A CN 1925584 A CN1925584 A CN 1925584A CN A2006100625802 A CNA2006100625802 A CN A2006100625802A CN 200610062580 A CN200610062580 A CN 200610062580A CN 1925584 A CN1925584 A CN 1925584A
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Abstract
This invention provides one digital television receiver energy saving system, which comprises main control chip and intelligent power management module, wherein, the said chip analysis and test digital television receiver comprises each function modules and it's outside prompt work status and energy index and sends order signals to power management module to control each function module and outside power matching. This invention also provides one digital television receiver energy saving method.
Description
Technical field
The present invention relates to the digital television receiver field, relate in particular to a kind of energy conserving system and method for digital television receiver.
Background technology
Be accompanied by the arriving of " Beijing2008 Digital Olympics ", and the comprehensive integral body conversion that starts cable TV from simulation-to-digital of country, digital television, top box of digital machine and digital TV integrated machine etc. are just beginning promptly to come into huge numbers of families.But meanwhile, these digital products will cause huge energy consumption, and have sizable part to belong to meaningless energy waste in these energy consumptions, and this not only can cause huge economic waste, bring white elephant also for simultaneously the efforts at environmental protection of country.In the world wide, energy crisis makes the international market to the household electric appliance energy consumption index stricter restriction arranged, and energy-efficient, environmental protection is the inexorable trend of consumer electronics product development.National governments all are devoted to build " conservation-minded society ", and country encourages, supports the power-saving technology that exploitation is advanced.
Yet, up to the present, the digital television receiver Research on energy saving mainly concentrated on how to reduce on the stand-by power consumption, and rarely have how reducing the research of normal working hours word television receiver power consumption.In fact, the power consumption of only managing to reduce digital television receiver when standby is not enough, because just present user's the operating position and the working condition of television receiver, the meaningless energy consumption that digital television receiver is produced when operate as normal also is appreciable, many circuit and ancillary equipment of not carrying out its major function are in the power consumption state all the time, and these often are left in the basket in the design phase of manufacturer and user's operational phase.
Summary of the invention
Technical problem to be solved by this invention is, overcomes above-mentioned the deficiencies in the prior art, and a kind of energy conserving system and method for digital television receiver is provided, and the power consumption during with reduction digital television receiver operate as normal is saved the energy.
For solving the problems of the technologies described above, the invention provides a kind of energy conserving system of digital television receiver, comprise main control chip and intelligent electric power management module, each functional module that described main control chip analysis and detection digital television receiver comprise and the instant operating state and the energy consumption index of ancillary equipment, and send command signal and give described power management module, control the power division of each functional module and ancillary equipment or directly shutoff.
Further, also comprise and to adjust the video output brightness of Digital Television and the acousto-optic induction system of volume automatically according to the characteristic of different ambient lighting intensity, sound decibel size and the human visual and the sense of hearing.
The present invention also provides a kind of power-economizing method of digital television receiver, may further comprise the steps:
A. main control chip analysis and detect each functional module that digital television receiver comprises and the instant operating state and the energy consumption index of ancillary equipment; And
B. main control chip sends command signal and gives power management module, each functional module that the control figure television receiver comprises and the power division of ancillary equipment or directly shutoff.
Further, among the described step a main control chip detect the user only watch video program stream and judge to play be hard disk drive HDD recorded program the time, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to tuner TUNER, general-purpose serial bus USB and Ethernet.
Further, main control chip detects that the user only watches that video program stream and judgement watch among the described step a be coaxial cable transmit TV program stream the time, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to HDD, USB and Ethernet.
Further, main control chip detects the user and only plays when video recording among the described step a, and described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to TUNER, USB and Ethernet.
Further, when main control chip detected the user and only checks the network information among the described step a, described step b further comprised: main control chip sends command signal and gives power management module, cuts off the power supply to TUNER, USB and HDD.
Further, when main control chip detected the user and only uses USB among the described step a, described step b further comprised: main control chip sends command signal and gives power management module, cuts off the power supply to TUNER, HDD and Ethernet.
Further, when enabling the start idle function, during the digital receiver start, main control chip sends standby signal and gives television set, and the control television set enters holding state.
Further, when detecting the user and only listen to data broadcasting, system just controls turn-offs video decode and output, the display brightness of reduction television screen and the frequency reducing of CPU are used.
Further, when top box of digital machine arrived in the time of program setting,, then eject dialog box automatically and show that the machine preparation enters holding state if infrared receiver does not detect any operational order that remote controller sends during this period;
If this moment the user by " cancellation " key then machine withdraw from pre-holding state and recover normal operating conditions, the while program timer begin the timing of another setting-up time again;
If the user is by " affirmations " key or one minute no-operation still afterwards, set-top box and television set enter holding state simultaneously.
Further, when top box of digital machine when normal operating conditions enters holding state or absence of audio output state, top box of digital machine just sends a standby signal to television set, after television set receives this standby signal, also enters the holding state of low energy consumption.
Further, it is dark or in comparatively quiet environment following time that acousto-optic induction system in digital television receiver is sensed ambient brightness, the acousto-optic induction system is sent out a signal and is given main control chip, and main control chip is just controlled brightness and the volume that reduces video output.
The present invention has following beneficial effect:
1, uses MCU (microcontroller)/PMU (Power Management Unit), and utilize the power division of each functional module of control of software platform advantage intelligence, thereby obtain every watt of the highest property.
2, automatic stand-by, start standby The Application of Technology have reduced the energy waste that nobody watches or abnormal conditions cause.
3, the standby The Application of Technology shortens the time of operating state to the holding state transition again synchronously, has reduced the transition energy consumption of machine.
4, the user mode of each functional module of comprising of real-time judge digital television receiver will not carried out the modular circuit of its major function and will be turn-offed power supply, thereby realize energy-conservation purpose.
5, intelligent sensing design makes digital television receiver automatically regulate display brightness and volume according to external environment, thereby has reduced the energy consumption of demonstration/power amplifier module to greatest extent.
Description of drawings
Fig. 1 represents top box of digital machine modularization power supply schematic diagram of the present invention.
Fig. 2 represents digital television receiver energy-saving scheme workflow diagram of the present invention.
Fig. 3 represents digital television modularization power supply schematic diagram of the present invention.
Fig. 4 represents digital TV integrated machine modularization power supply schematic diagram of the present invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing.
Whether whether the present invention insert modem, be that band HDD works, whether inserts general-purpose interface/condition receiving card, televiews or listen to different situations realization modularization power supplies such as data broadcasting according to the digital television receiver outside.Under the prerequisite of the instant operating state of analyzing each functional module that digital television receiver comprises and peripheral hardware and energy consumption index, by each functional module of monitoring of software intelligence and the running status of ancillary equipment, make it in unnecessary, be in zero-power or low power consumpting states such as shutoff, thereby reduce television receiver unnecessary energy loss when operate as normal.
As shown in Figure 1, top box of digital machine can be divided into three parts such as intelligent electric power management module, main control chip, ancillary equipment.Wherein main control chip comprises CPU again, demultiplexer, memory, audio/video decoder, audio frequency and video digital to analog converter, process input/output interface etc.
Ancillary equipment comprises the built-in flash memory FLASH of set-top box, synchronous DRAM SDRAM, TUNER, single-chip microprocessor MCU and keying panel etc. and external equipment such as MODEM, Ethernet, general-purpose interface, condition receiving card and USB again.
Derived digital signal is by the input of TUNER port, and by CPU control carrying out audio/video decoding and digital-to-analogue conversion, the analog audio-video signal after being transformed by the output of process input/output port at last is to the input of television set behind demultiplexing.
The intelligent electric power management module is used for providing required electric current and voltage to each functional module.In Fig. 1, according to energy consumption testing to each electronic component, the classification of consuming energy of used electronic component, equipment such as FLASH, SDRAM, control panel, MCU, MODEM, Ethernet, memory, audio frequency and video analog to digital converter, display unit, condition receiving card, output interface are the low energy consumption element, so the intelligent electric power management module is just distributed to the low energy of these equipment.And look like CPU, TUNER, HDD, audio/video decoder, general-purpose interface, USB etc. is the equipment of high energy consumption, and the intelligent electric power management module is just distributed to the corresponding high energy of these equipment.
Figure 2 shows that the workflow of digital television receiver power-economizing method of the present invention.The start idle function that has increased top box of digital machine according to user's needs is set.If the user needs, then can be by starting " the start idle function " on the remote controller, make top box of digital machine when just powering on, directly change holding state over to, can prevent the unnecessary energy consumption that nobody home causes when forgetting that powered-down causes sending a telegram here under the abnormal conditions such as power failure like this.
After the start, when main control chip detects the user and only watches video program stream, play content that HDD records and then send command signal and give Power Management Unit if be judged as, thereby cut off power supply equipment such as TUNER, USB and Ethernets; Only watch that the TV program stream that is transmitted by coaxial cable then cuts off the power supply of peripheral hardwares such as HDD, USB and Ethernet if be judged as, promptly in this process, power supply is powered to the parts that the user uses, and does not have related parts then to make its shutoff, does not power.
When user's TV reception and when just being set to timed recording, can being provided with by remote keying and turn-offing the audio frequency and video output of recording the digital television receiver in period not.
When master chip detected the user and only listens to data broadcasting, master chip turn-offs video decode by control and output, the display brightness of reduction television screen and the frequency reducing use of CPU etc. further reduce power consumption.
Increase the automatic stand-by translation function of top box of digital machine as required, make top box of digital machine when the time of program setting arrives, if infrared receiving device does not detect remote controller and sends any operational order during this period, promptly this moment, MCU can not receive the signal that infrared receiver is sent, then MCU can not eject the timer zero clearing dialog box and show that the machine preparation enters holding state signal interruption this moment simultaneously automatically.If this moment, the user was a machine when receiving remote control/internal trigger signal by " cancellation " key, then withdraw from pre-holding state and recover normal operating conditions, former reproduction time is noted down zero clearing.Program timer begins the timing of another setting-up time again simultaneously; If the user is by " affirmations " key or one minute no-operation still afterwards, set-top box and television set enter holding state simultaneously, thereby leave and do not saved energy consumption under the situation such as powered-down the user.
If in the process of playing, produced signal interruption, when signal recovers, noted down zero clearing break period.
When top box of digital machine when normal operating conditions enters holding state or tone-off video output states, just send a standby signal to television set, after television set receives this standby signal, also enter the holding state of low energy consumption, thereby further saved the energy.
Be illustrated in figure 3 as digital television modularization power supply schematic diagram.Digital television can be divided into three parts such as intelligent electric power management module, main control chip, ancillary equipment equally.Main control chip partly comprises: CPU, SDRAM, FLASH, eeprom E
2PROM, vision signal input matrix switch, real-time clock, video processor, audio process, video A/D converter.Ancillary equipment comprises: keyboard, infrared controller, composite video signal interface, intelligent SCART interface, television modulator, low-voltage differential signal driver, liquid crystal/plasma panel, audio frequency amplifier and loud speaker.
The intelligent electric power management module is used for providing required electric current and voltage to each functional module.According to test, obtain the power demands of each element, as keyboard, infrared remote receiver, FLASH, SDRAM, E to each element
2ROM, video A/D converter, audio frequency amplifier etc. are than the low energy consumption element, so the intelligent electric power management module is just distributed to the low energy of these equipment.And the equipment of medium energy consumptions such as picture CPU, audio/video decoder, low-voltage differential signal driver, loud speaker, the intelligent electric power management module is just distributed to equal energy source in these equipment.For this high-energy equipment of liquid crystal/plasma panel, the intelligent electric power management module is just distributed to its high-energy source.
Be illustrated in figure 4 as digital TV integrated machine modularization power supply schematic diagram.Digital TV integrated machine can be divided into three parts such as intelligent electric power management module, main control chip, ancillary equipment equally.Main control chip comprises demultiplexer, CPU, memory, process input/output interface, audio frequency and video digital to analog converter, audio/video decoder, demodulation multiplexer, video processor, audio process, low-voltage differential signal driver, audio frequency amplifier.Ancillary equipment comprises HDD, FLASH, SDRAM, MODEM, USB, Ethernet, general-purpose interface, condition receiving card, TUNER 1#, TUNER 2#, demodulator 1#, demodulator 2#, smart card, video dac, liquid crystal/plasma panel.
The intelligent electric power management module is used for providing required electric current and voltage to each functional module.Obtain the power consumption needs of each element according to test, the intelligent electric power management module is supplied with the electric weight of appropriate level.The shared same intelligent power module for power supply of the embedded digital set-top box of digital intergrated unit and television set improves power supplying efficiency greatly, has further reduced energy consumption.
Increase the acousto-optic induction system as required, the intelligent-induction environmental aspect is regulated video output brightness and volume.In the modern digitizer tablet TV, the backlight luminescence device has occupied sizable ratio in the complete machine energy consumption, even the CRT TV of digitlization large-screen, video output brightness to the influence of its power consumption also suitable significantly.More secretly or comparatively quietly under the environment, suitably reduce the brightness and the volume of video output at ambient brightness, then can when satisfying user's pleasure of the senses, reduce the work energy consumption of Digital Television.Show according to relevant report simultaneously, the every reduction of the brightness of backlight luminescence device 10%-20%, will be doubled and redoubled useful life.
Claims (13)
1, a kind of energy conserving system of digital television receiver, it is characterized in that: comprise main control chip and intelligent electric power management module, each functional module that described main control chip analysis and detection digital television receiver comprise and the instant operating state and the energy consumption index of ancillary equipment, and send command signal and give described power management module, control the power division of each functional module and ancillary equipment or directly shutoff.
2, the energy conserving system of digital television receiver as claimed in claim 1, it is characterized in that: also comprise and to adjust the video output brightness of Digital Television and the acousto-optic induction system of volume automatically according to the characteristic of different ambient lighting intensity, sound decibel size and the human visual and the sense of hearing.
3, a kind of power-economizing method of digital television receiver may further comprise the steps:
A. main control chip analysis and detect each functional module that digital television receiver comprises and the instant operating state and the energy consumption index of ancillary equipment; And
B. main control chip sends command signal and gives power management module, each functional module that the control figure television receiver comprises and the power division of ancillary equipment or directly shutoff.
4, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: among the described step a main control chip detect the user only watch video program stream and judge to play be hard disk drive HDD recorded program the time, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to tuner TUNER, general-purpose serial bus USB and Ethernet.
5, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: main control chip detects that the user only watches that video program stream and judgement watch among the described step a be coaxial cable transmit TV program stream the time, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to HDD, USB and Ethernet.
6, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: main control chip detects the user and only plays when video recording among the described step a, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to TUNER, USB and Ethernet.
7, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: when main control chip detects the user and only checks the network information among the described step a, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to TUNER, USB and HDD.
8, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: when main control chip detects the user and only uses USB among the described step a, described step b further comprises: main control chip sends command signal and gives power management module, cuts off the power supply to TUNER, HDD and Ethernet.
9, the power-economizing method of digital television receiver as claimed in claim 3 is characterized in that: when enabling the start idle function, during the digital receiver start, main control chip sends standby signal and gives television set, and the control television set enters holding state.
10, the power-economizing method of digital television receiver as claimed in claim 3 is characterized in that: when detecting the user and only listen to data broadcasting, system just controls turn-offs video decode and output, the display brightness of reduction television screen and the frequency reducing of CPU are used.
11, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: when top box of digital machine arrived in the time of program setting, if infrared receiver does not detect any operational order that remote controller sends during this period, then eject dialog box automatically and show that the machine preparation enters holding state;
If this moment the user by " cancellation " key then machine withdraw from pre-holding state and recover normal operating conditions, the while program timer begin the timing of another setting-up time again;
If the user is by " affirmations " key or one minute no-operation still afterwards, set-top box and television set enter holding state simultaneously.
12, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: when top box of digital machine when normal operating conditions enters holding state or absence of audio output state, top box of digital machine just sends a standby signal to television set, after television set receives this standby signal, also enter the holding state of low energy consumption.
13, the power-economizing method of digital television receiver as claimed in claim 3, it is characterized in that: it is dark or in comparatively quiet environment following time that the acousto-optic induction system in digital television receiver is sensed ambient brightness, the acousto-optic induction system is sent out one and is fed back signal to main control chip, and main control chip is just controlled brightness and the volume that reduces video output.
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| CN200610062580A CN1925584B (en) | 2006-09-12 | 2006-09-12 | Energy-saving system and method for digital television receiving machine |
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| CN200610062580A CN1925584B (en) | 2006-09-12 | 2006-09-12 | Energy-saving system and method for digital television receiving machine |
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