CN101631216A - Method for turning on television and television - Google Patents
Method for turning on television and television Download PDFInfo
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- CN101631216A CN101631216A CN200810068552A CN200810068552A CN101631216A CN 101631216 A CN101631216 A CN 101631216A CN 200810068552 A CN200810068552 A CN 200810068552A CN 200810068552 A CN200810068552 A CN 200810068552A CN 101631216 A CN101631216 A CN 101631216A
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Abstract
The invention is applicable for the technical field of televisions, and provides a method for turning on a television and the television. The television comprises a master system and a power module, and also comprises a detection circuit and a standby management microcontroller, wherein the detection circuit is used for detecting a signal input status of a signal source input port of the television in real time when the television is in a standby mode, and transmitting a detection result to the standby management microcontroller; and the standby management microcontroller is used for controlling the power module, and controlling the power module to execute a power-on operation when the detection circuit detects that a signal is input at the signal source input port. The technical scheme brings convenience and simplicity to a user to operate the television and meets the requirements of the user.
Description
Technical field
The invention belongs to TV technology, relate in particular to the technology of control TV power on and off.
Background technology
Existing television set can receive the signal of plurality of information resources input, as the video/audio signal of set-top box input, video/audio signal of DVD player input or the like, so just produced a problem: when the input information source changes, need to switch television set to current information source corresponding input end mouth.
For simplifying user's operation, existing television set can switch according to the variation of information source automatically, it realizes that principle is: whether television system detects each information source input port in real time the signal input, as judges row, the field system chronizing impulse of vision signal confirm whether to have the signal input.When television system detects a certain input port in information source when input, arranged, then jump to this input port automatically, receive the signal of this input port; Otherwise, then still under current information source, show.
But existing information source automatic switching function can only realize under the television boot-strap state, because only under open state, television system could detect the signal condition of each input port.In fact, existing television set is because the continuous increase of external equipment, needs to realize under the holding state detection to the signal condition of information source input port under a lot of situations, according to the testing result Auto Power On and switch to the information source input port of signal input.As user for external set-top box and DVD player, if the user shuts down by remote controller after the DVD playing back video disc, need play digital television program when starting shooting next time, after then the user opens the set-top box power supply, also need television boot-strap by remote controller, television set is transformed into open state from holding state, could the normal play TV programme.If TV set under holding state to the signal input state measuring ability of information source input port, under the television set holding state, then the user only need open the set-top box power supply, television system detects after the signal input of corresponding port, automatically the control television boot-strap no longer needs user's manual operation.
Therefore, need a kind of technical scheme, make television set under holding state, also can detect the signal condition of each information source input port, and Auto Power On under the situation of signal input is arranged in a certain information source input port, and its standby power to reach standard-required.
Summary of the invention
The object of the present invention is to provide a kind of method for turning on television and television set, be intended to solve the television set that exists in the prior art and when standby, can not under the situation that the signal input is arranged, carry out the problem that Auto Power On is operated.
The present invention is achieved in that a kind of television set, and described television set comprises main system and power module, and described television set also comprises testing circuit and standby management microcontroller, wherein:
Described testing circuit is used for detecting in real time the signal input state of described television set information source input port under the television set holding state, and testing result is transferred to described standby management microcontroller;
Described standby management microcontroller is used for controlling described power module, and when described testing circuit detected described information source input port the signal input is arranged, described standby management microcontroller was used for controlling described power module and carries out the start operation.
Described television set also comprises energy supply control module, and described energy supply control module links to each other with standby management microcontroller with described testing circuit, is used for giving described testing circuit power supply according to the control of described standby management microcontroller.
Described testing circuit comprises input circuit and the comparison circuit that connects successively, described input circuit is used for the input signal of described television set information source input port is transferred to described comparison circuit, described comparison circuit is used for described input signal and reference signal are compared, and comparative result is transferred to described standby management microcontroller.
Be connected with transmission channel between described input circuit and the comparison circuit, described transmission channel is used for described input signal flip-flop is isolated.
Described comparison circuit is a zero-crossing comparator.
The present invention also provides a kind of method for turning on television, comprises testing circuit and standby management microcontroller in the described television set, and described method comprises the steps:
Under a, the holding state, the television set testing circuit detects the source input state of information source input port in real time, and testing result is transferred to standby management microcontroller;
B, described standby management microcontroller are controlled described TV set power module and are carried out the start operation under the situation that described information source input port has signal to import.
Wherein step a also comprises:
Under the holding state, described standby management microprocessor controls TV set power control module is given described testing circuit power supply.
Wherein step a specifically comprises:
The input signal of a1, the described information source input port of reception compares described input signal and reference signal;
A2, comparative result is transferred to described standby management microcontroller.
Wherein step b specifically comprises:
B1, described standby management microcontroller judge according to comparative result whether described information source input port has the signal input, and the described TV set power module of control is carried out the start operation under the situation that the signal input is arranged.
Wherein also comprise after the step b:
To import the information source input port that information source switches to the signal input behind the described television boot-strap.
The present invention overcomes the deficiencies in the prior art, under ideal case, television set detects the signal input state of each information source input port in real time, if detect some information source input port the signal input is arranged, standby management microcontroller (MCU) control television set Auto Power On also switches to corresponding information source.Whether technical scheme provided by the invention makes television set can detect each information source input port under holding state the signal input, and under the situation that detects the signal input, control television boot-strap, facilitate and simplify the user and operate television set, satisfied user's request.
Description of drawings
Fig. 1 is the theory diagram of the television set that provides of the embodiment of the invention;
Fig. 2 is the comparison circuit schematic diagram that the embodiment of the invention provides;
Fig. 3 is the circuit diagram of the energy supply control module that provides of the embodiment of the invention;
Fig. 4 is an embodiment of the invention flow chart.
Embodiment
Technical scheme provided by the invention is: under ideal case, television set detects the signal input state of each information source input port in real time, if detect some information source input port the signal input is arranged, standby management microcontroller (MCU) control television set Auto Power On also switches to corresponding information source.
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The theory diagram that the embodiment of the invention provides television set comprises input circuit 11, transmission channel 12, comparison circuit 13, standby management microcontroller (MCU) 14, main system 15, power module 16 and energy supply control module 17 as shown in Figure 1.Wherein, the function of each module is:
Input circuit 11, the interface gateway of external input signal is provided, input to the signal of television set as video (Video), S video (S-video), pcs signal (VGA), simulation high-definition signal (YPBPR) etc., start shooting and ideal case under input signal all derive from this.The detection of signal was handled when technical scheme provided by the invention mainly solved standby, and the input under the start situation is directly finished by main system 15, as shown in phantom in Figure 1.Here need to prove that the input circuit 11 that provides among Fig. 1 promptly can be top arbitrary single input information source such as video (Video), also can be the combination of multiple input signal, it realizes that principle is identical.
Transmission channel 12 is isolated input signal flip-flop, makes it be unlikely the direct current biasing that has influence on comparison circuit, generally is made up of capacitive device, as electrochemical capacitor and ceramic condenser etc.
Comparison circuit 13 is judged the identification that external input signal has or not, and generally is the zero-crossing comparator that high gain operational amplifier constitutes.Its basic principle is that signal voltage and reference " zero " are compared, and that is to say that output voltage jumps to another level as high (Vcc) from a level such as low (0V) when the signal variation is higher than zero level.Show as Fig. 2, adopt the homophase connection in the present embodiment, when input signal greater than zero the time, when the signal input was promptly arranged, the output of operational amplifier 23 was high level (Vcc); When input signal was less than or equal to zero, the output of operational amplifier 23 was low level (0V).Operational amplifier 23 is main devices, and it and resistive device 21, resistive device 22, power supply VCC and reference ground GND constitute basic zero-crossing comparator jointly.When there is the signal input outside, when promptly Vin has electric parameter to change, need only greater than " zero ", Vout output is " height " level; Otherwise Vin does not have the signal input, and Vout output is " low " level.The judgement basis that standby management microcontroller (MCU) 14 has or not as external signal according to this " height " or " low " level state.
Wherein, input circuit 11, transmission channel 12 and comparison circuit 13 can be referred to as testing circuit, the function that its integral body is finished is under the television set holding state, finishes the real-time monitoring to each information source input port, judges whether each information source input port has the signal input.
Standby management microcontroller (MCU) 14 replaces main system 15 to finish to the detection of external signal and to the control of television set when standby.Main system 15 then quits work when standby, satisfies the standby power that GB requires to reduce power consumption.Standby management microcontroller (MCU) is born the management control to PS_ON, Vout and PW_ON signal in this example, wherein the PS_ON signal is the control to energy supply control module 17, the Vout signal comes from comparison circuit 13, and PW_ON then is the start-up command of power module 16.Standby management microcontroller (MCU) 14 can adopt PIC class single-chip microcomputer PIC16F716 or PIC12F675.
Standby management microcontroller (MCU) 14 is provided with PS_ON output high level during standby, connects the connection between Va and the Vcc, and comparison circuit 13 is because of getting electric starting working.The Vout signal condition of standby management microcontroller (MCU) 14 real-time judge comparison circuits 13 outputs, if be high level, then send instruction PW_ON, control power module 16 is opened, power module 16 output Vs voltages, main system 15 and display (CRT/LCD etc.) must be established beginning work by cable; If be low level, then further judge whether it is open state, in this way open state then main system start input information source automatic switching function, otherwise then continue to judge the Vout signal condition.After main system 15 and display get electric work, standby management microcontroller (MCU) 14 is provided with the PS_ON output low level, turn-offs the connection between Va and the Vcc, and comparison circuit 13 quits work because of dead electricity, main system 15 starts input information source automatic switching function, finishes Auto Power On process under the standby.
Main system 15 realizes the switching identification to input signal under the start situation, the identification control work of stop signal under ideal case.
Power module 16 provides the energy source of television set work, sends the PW_ON commands for controlling by MCU, power module 16 output VS voltages; Otherwise power module 16 stops the output of VS voltage, only is the work of Va branch voltage.
Energy supply control module 17 according to the control command PS_ON that standby management microcontroller 14 sends, offers the power supply of comparison circuit 13 under ideal case and supplies with.As shown in Figure 3, this module is made of transistor or field effect transistor 31,34 and resistive device 32,33,34 and 35 etc., and the PS_ON signal comes from the control port of standby management microcontroller 14.Power supply sign Va represents different supply networks respectively with Vcc, and Va comes from power module 16, and Vcc is a power supply of supplying with comparison circuit 13.Its operation principle is: after the start, the PS_ON control signal that comes from standby management microcontroller 14 is a low level, element 34 ends, element 31 isogonics end, and the Vcc end is for low, and the energy that is equivalent between power supply Va and the Vcc connects shutoff, comparison circuit 13 quits work because of dead electricity, because the buffer action of transmission channel 12 elements can not produce harmful effect to input circuit 11, the external signal that input circuit 11 provides is directly handled to main system 15; During standby, it is high level that standby management microcontroller 14 provides the PS_ON control signal, element 34 saturation conductions, element 32 and 33 is provided with suitable operating voltage for element 31, make element 31 satisfy the saturation conduction condition, energy between power supply Va and the Vcc connects to be connected, and comparison circuit 13 is because of getting electric work.
The television set operation principle that the embodiment of the invention provides is: standby management microcontroller (MCU) 14 is under ideal case, detect the signal input state of each information source input port in real time, if detect some information source input port the signal input is arranged, this signal is output Vout signal after comparison circuit 13 identifications, and whether standby management microcontroller (MCU) powers on according to Vout signal condition output PW_ON signal control power supply module.When identification had the signal input, PW_ON was high, power module output Vs voltage, and main system 15 and display etc. must be established machine by cable and switch to corresponding information source.For not influencing influence to the back normal input signal of starting shooting, realize switching by of the power supply of standby management microcontroller 14 output PS_ON signal contrast than circuit, having only under the ideal case just provides power supply to comparison circuit, and the start back cuts off power supply.
For make television set satisfy standby power＜3W or＜the GB requirement of 1W (energy-conserving product), need rationally choose and design the hardware circuit parameter, energy consumption during above-mentioned each the circuit module standby of suitable allocation.Energy consumption when being appreciated that standby mainly is made of jointly standby management microcontroller 14 devices, comparison circuit 13, energy supply control module 17 and power module 16.
It is necessary that the energy of standby management microcontroller (MCU) 14 device consumption is kept its operate as normal.Before address, standby management microcontroller can be born by PIC class single-chip microcomputer PIC16F716 or PIC12F675, this type of single-chip microcomputer energy consumption when work is low, when standby, has the low-power consumption characteristic, standby current as nominal in the PIC12F675 specifications of Microchip company is when operating voltage is 2V, and representative value is 1 to receive peace (nA), is 14 microamperes (μ A) during operate as normal, be converted to power just just 2 nanowatts (nW) and 28 microwatts (μ W), represent with Pm here.
The energy consumption of comparison circuit 13 mainly is the working loss of operational amplifier itself.Double operational RC4580 with TI company is an example, current sinking is 6～9 milliamperes (mA) under the 15V operating voltage that its specifications provide, and the standby power that the general television set power module provides generally is 2～5V, at this moment the energy of Xiao Haoing will be lower, convert into about 12～30 milliwatts (mW) by this voltage herein, represent with Pp here.
Energy supply control module 17 is another parts of considering when needing the calculating standby power, its energy mainly consumes on one's body transistor or field effect transistor 31 and 34, it wherein mainly is element 31, its conduction loss computational methods are: conducting pressure reduction * conducting electric current, the conducting pressure reduction Vce (sat) of ordinary silicon material transistors is 0.3V～0.5V approximately, its conducting electric current depends on the operating current of comparison circuit 13, be about 6～9 milliamperes (mA), its conduction loss is 1.8～4.5 milliwatts (mW) approximately like this, represents with Pc here.
The energy that power module 16 consumes mainly is on standby transformer and its peripheral cell, energy consumption itself that can accomplish during common power module standby commonly used is less than 0.5W, that improves can be less than below the 0.2W, and this species diversity mainly is that cost is considered, and represents with Pw here.
The energy P that consumes when above-mentioned like this four parts are worked is:
P＝Pm+Pp+Pc+Pw＝(2nW～28μW)+(2～30mW)+(1.8～4.5mW)+(0.2～0.5W)
＝0.204～0.535(W)
Get maximum 0.535W and consider that the error brief note is 0.6W, the 1W standard limited value that requires from GB also has the 0.4W surplus, as seen satisfies the energy-conserving product requirement.
Embodiment of the invention flow process specifically comprises the steps: as shown in Figure 4
1. standby management microcontroller (MCU) 14 is provided with PS_ON output high level during standby, and the energy of connecting between Va and the Vcc connects, and comparison circuit is because of getting electric starting working;
2.MCU the Vout signal condition of real-time judge comparison circuit output if be high level, is then sent power module open command PW_ON, power module output Vs voltage, and main system and display (CRT/LCD etc.) must be established beginning work by cable; If be low level, then further judge whether it is open state, in this way open state then main system start input information source automatic switching function, otherwise then continue to judge the Vout signal condition;
3. after main system and display got electric work, MCU was provided with the PS_ON output low level, and the energy that turn-offs between Va and the Vcc connects, and comparison circuit quits work because of dead electricity, to reduce the issuable harmful effect of input circuit;
4. main system starts input information source automatic switching function after being in complete operating state, finishes the input information source and automaticallyes switch.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1, a kind of television set, described television set comprises main system and power module, it is characterized in that, described television set also comprises testing circuit and standby management microcontroller, wherein:
Described testing circuit is used for detecting in real time the signal input state of described television set information source input port under the television set holding state, and testing result is transferred to described standby management microcontroller;
Described standby management microcontroller is used for controlling described power module, and when described testing circuit detected described information source input port the signal input is arranged, described standby management microcontroller was used for controlling described power module and carries out the start operation.
2, television set according to claim 1, it is characterized in that, described television set also comprises energy supply control module, described energy supply control module links to each other with standby management microcontroller with described testing circuit, is used for giving described testing circuit power supply according to the control of described standby management microcontroller.
3, television set according to claim 1, it is characterized in that, described testing circuit comprises input circuit and the comparison circuit that connects successively, described input circuit is used for the input signal of described television set information source input port is transferred to described comparison circuit, described comparison circuit is used for described input signal and reference signal are compared, and comparative result is transferred to described standby management microcontroller.
4, television set according to claim 3 is characterized in that, is connected with transmission channel between described input circuit and the comparison circuit, and described transmission channel is used for described input signal flip-flop is isolated.
5, television set according to claim 3 is characterized in that, described comparison circuit is a zero-crossing comparator.
6, a kind of method for turning on television comprises testing circuit and standby management microcontroller in the described television set, it is characterized in that described method comprises the steps:
Under a, the holding state, the television set testing circuit detects the source input state of information source input port in real time, and testing result is transferred to standby management microcontroller;
B, described standby management microcontroller are controlled described TV set power module and are carried out the start operation under the situation that described information source input port has signal to import.
7, method according to claim 6 is characterized in that, wherein step a also comprises:
Under the holding state, described standby management microprocessor controls TV set power control module is given described testing circuit power supply.
8, method according to claim 6 is characterized in that, wherein step a specifically comprises:
The input signal of a1, the described information source input port of reception compares described input signal and reference signal;
A2, comparative result is transferred to described standby management microcontroller.
9, method according to claim 8 is characterized in that, wherein step b specifically comprises:
B1, described standby management microcontroller judge according to comparative result whether described information source input port has the signal input, and the described TV set power module of control is carried out the start operation under the situation that the signal input is arranged.
10, method according to claim 6 is characterized in that, wherein also comprises after the step b:
To import the information source input port that information source switches to the signal input behind the described television boot-strap.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100685520A CN101631216B (en) | 2008-07-18 | 2008-07-18 | Method for turning on television and television |
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| CN2008100685520A CN101631216B (en) | 2008-07-18 | 2008-07-18 | Method for turning on television and television |
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| CN101631216A true CN101631216A (en) | 2010-01-20 |
| CN101631216B CN101631216B (en) | 2012-01-04 |
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| CN2008100685520A Expired - Fee Related CN101631216B (en) | 2008-07-18 | 2008-07-18 | Method for turning on television and television |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655574A (en) * | 2011-03-01 | 2012-09-05 | 联想(北京)有限公司 | Device for controlling display equipment, method for controlling television and television |
| CN102957886A (en) * | 2012-11-13 | 2013-03-06 | 广东长虹电子有限公司 | System and method for controlling television set backlight |
| CN103686369A (en) * | 2013-12-26 | 2014-03-26 | Tcl集团股份有限公司 | Android platform based television signal source switching method and device |
| CN104363513A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Automatic-switching smart television |
| CN106792195A (en) * | 2016-12-26 | 2017-05-31 | 深圳Tcl数字技术有限公司 | Intelligent television start information source intelligent selecting method and system |
| CN108495175A (en) * | 2018-03-12 | 2018-09-04 | 青岛海信电器股份有限公司 | A kind of method and apparatus for controlling communication message when smart television interconnection external equipment |
| CN111478403A (en) * | 2020-05-11 | 2020-07-31 | 深圳Tcl新技术有限公司 | Power supply control method, power supply control circuit and medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076059B (en) * | 2007-03-28 | 2012-09-05 | 腾讯科技（深圳）有限公司 | Customer service system and method based on instant telecommunication |
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2008
- 2008-07-18 CN CN2008100685520A patent/CN101631216B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102655574A (en) * | 2011-03-01 | 2012-09-05 | 联想(北京)有限公司 | Device for controlling display equipment, method for controlling television and television |
| CN102655574B (en) * | 2011-03-01 | 2015-11-25 | 联想(北京)有限公司 | A kind of device, the method controlling TV and television set controlling display device |
| CN102957886A (en) * | 2012-11-13 | 2013-03-06 | 广东长虹电子有限公司 | System and method for controlling television set backlight |
| CN103686369A (en) * | 2013-12-26 | 2014-03-26 | Tcl集团股份有限公司 | Android platform based television signal source switching method and device |
| CN104363513A (en) * | 2014-11-12 | 2015-02-18 | 无锡科思电子科技有限公司 | Automatic-switching smart television |
| CN106792195A (en) * | 2016-12-26 | 2017-05-31 | 深圳Tcl数字技术有限公司 | Intelligent television start information source intelligent selecting method and system |
| CN106792195B (en) * | 2016-12-26 | 2020-12-08 | 深圳Tcl数字技术有限公司 | Intelligent selection method and system for starting information source of intelligent television |
| CN108495175A (en) * | 2018-03-12 | 2018-09-04 | 青岛海信电器股份有限公司 | A kind of method and apparatus for controlling communication message when smart television interconnection external equipment |
| CN108495175B (en) * | 2018-03-12 | 2020-10-30 | 海信视像科技股份有限公司 | Method and device for controlling communication message when smart television interconnects external equipment |
| CN111478403A (en) * | 2020-05-11 | 2020-07-31 | 深圳Tcl新技术有限公司 | Power supply control method, power supply control circuit and medium |
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| CN101631216B (en) | 2012-01-04 |
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Granted publication date: 20120104 Termination date: 20200718 |