CN101193233A - TV set key control device and TV set - Google Patents
TV set key control device and TV set Download PDFInfo
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- CN101193233A CN101193233A CNA2007100750900A CN200710075090A CN101193233A CN 101193233 A CN101193233 A CN 101193233A CN A2007100750900 A CNA2007100750900 A CN A2007100750900A CN 200710075090 A CN200710075090 A CN 200710075090A CN 101193233 A CN101193233 A CN 101193233A
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Abstract
The invention provides a device for controlling a TV press key and a TV which is applicable to the TV field. The device for controlling the press key comprises a press key switch which is pressed or rotated to realize the keying operation; an encoder which is connected with the press key switch and outputs a first signal and a second signal according to rotation direction and rotation amplitude of the press key switch; a control switch which is connected with the press key switch and is communicated with a circuit between an external power and the press key switch to output a confirmed signal when the press key switch is pressed. In the embodiment of the invention, the adoption of the passive mechanical rotary encoder realizes the press key control of the TV and realizes all the functions of press key control of the traditional TV through pressing and rotating the press key switch, and combining corresponding design of a screen menu. The device provided by the embodiment of the invention requires less devices with a simple layout of circuit and press key, fewer openings on the panel shell the TV, and thus rendering a more attractive outlook.
Description
Technical field
The invention belongs to TV domain, relate in particular to a kind of key control device and television set of television set.
Background technology
The device that needs to use in the key control device of television set comprises keying printed circuit board (PCB) (Printed Circuit Board at present, PCB), channel+, channel-, volume+, volume-, 6-8 buttons such as menu, standby (Standby), signal source, plastics row's button and keying pcb board are to the connecting line of TV SKD.The keying pcb board generally has two kinds of situations to the connecting line of TV SKD: microcontroller (the Micro Control Unit when system, MCU) have analog to digital converter (Analog-Digital Converter, ADC) during interface, have 4 connecting lines, be respectively ground wire GND ,+5V, ADC1, ADC2, this moment, the keying pcb board needed divider resistance, the circuit more complicated, and cost is higher; When system MCU was not with the ADC interface, the keying pcb board did not have divider resistance, and circuit is comparatively simple, but needed 8-10 position connecting line, and connecting line is many.In a word, in the key control device of existing television set, the simple and easy degree of the quantity of required connecting line and circuit structure can not be taken into account simultaneously, and because the button on the panel shell of television is more, press the wrong button easily when the user carries out button operation, profile is also succinctly attractive in appearance inadequately.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of television set key control device, and it is less to be intended to solve in the key control device of existing television set connecting line, but the circuit structure complexity, perhaps circuit structure is simple, but the more problem of connecting line.
The embodiment of the invention is achieved in that a kind of key control device of television set, and described device comprises:
Key switch is by being pressed or rotating the realization button operation;
Encoder is connected with described key switch, according to the direction of rotation and the rotation amplitude of described key switch, exports first signal and secondary signal; And
Control switch is connected with described key switch, when described key switch is pressed, and the circuit between connection and the external power supply, output confirmation signal.
Another purpose of the embodiment of the invention is to provide a kind of television set, and described television set comprises:
Key control device, described device comprises:
Key switch, described key switch is by being pressed, rotating the realization button operation;
Encoder is connected with described key switch, according to the direction of rotation and the rotation amplitude of described key switch, exports first signal and secondary signal; And
Control switch is connected with described key switch, when described key switch is pressed, and the circuit between connection and the external power supply, output confirmation signal;
Microcontroller detects first signal, secondary signal or confirmation signal that described key control device is exported, output detection information; And
Button menu control unit is used for the output key menu, realizes the setting of button menu according to described detection information.
The present invention compared with prior art, beneficial effect is: circuit structure of the present invention is simple, the device that needs is few, reduced cost, and have only a rotating disk and one to treat switch on the panel shell of television, and there is not the too many and situation about pressing the wrong button of button, profile is also more succinctly attractive in appearance.
Description of drawings
The circuit theory diagrams of the television set key control device that Fig. 1 provides for the embodiment of the invention;
The schematic diagram of the on-screen menu of the television set key control device that Fig. 2 provides for the embodiment of the invention;
The waveform schematic diagram that encoder produced when the television set key control device that Fig. 3 provides for the embodiment of the invention turned clockwise rotating disk;
The waveform schematic diagram that encoder produced when the television set key control device that Fig. 4 provides for the embodiment of the invention was rotated counterclockwise rotating disk;
Television set key control device " menu " the option one-level main menu that Fig. 5 provides for the embodiment of the invention and the schematic diagram of second-level menu;
The second-level menu schematic diagram of " image " in television set key control device " menu " option that Fig. 6 provides for the embodiment of the invention;
Fig. 7 adjusts the menu schematic diagram for the television set key control device " volume " that the embodiment of the invention provides;
Television set key control device " channel " the choice menus schematic diagram that Fig. 8 provides for the embodiment of the invention;
Fig. 9 selects schematic diagram for the television set key control device " signal source " that the embodiment of the invention provides.
Embodiment
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.
In embodiments of the present invention, by pushing rotating disk, rotary turnplate, pushing the Standby key and (On Screen Display OSD) has realized all functions of conventional television keying in conjunction with corresponding on-screen menu function.
The device that the embodiment of the invention needs has rotary encoder, the keying pcb board, and 1 rotating disk, 1 button, singly-bound plastics row's button and keying panel are to the connecting line (being less than 6) of mainboard.
Fig. 1 shows the structural principle of the television set key control device that the embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.
The control end of control switch 104 (projection) is connected (not shown in figure 1) with metal shaft 103, and the D end is connected with resistance R 1, and the E end is connected to I/O mouth or the ADC mouth of MCU.When pushing rotating disk 101, metal shaft 103 drives control switch 104 and presses down, and the D of control switch 104, E two ends are switched on, and (Enter) signal is confirmed in output, and this signal is transferred to I/O mouth or the ADC mouth of MCU by mainboard.The size of Enter signal voltage is big or small identical with supply voltage VCC's.
Treat that switch (Standby) 105 two ends are connected with I/O mouth or the ADC of resistance R 1 and MCU respectively.When treating that switch 105 is pressed, output Standby signal, this signal is transferred to I/O mouth or the ADC mouth of MCU by mainboard.The size of Standby signal voltage is big or small identical with supply voltage VCC's.
When rotating disk 101 is rotated, driving metal shaft 103 rotates, after encoder 102 is sensed metal shaft 103 rotations, according to the size of rotation direction and rotation amplitude, by two square-wave signals of A, B pin output A, B, A, when the B signal is high level, the size of level is big or small identical with supply voltage VCC's, A, when the B signal is low level, the size of level is identical with C pin voltage, is zero.When rotating disk 101 turned clockwise, the a-signal level changed preceding, as shown in Figure 3; When rotating disk 101 was rotated counterclockwise, the B signal level variation was preceding, as shown in Figure 4.MCU obtains the direction of rotation of rotating disk 101 by the sequencing of judging A, B signal level variation, obtain the rotation lattice number of rotating disk 101 by the high-low level change frequency that calculates waveform, corresponding menu item is selected state in the MCU control button Control-Menu, as an example of the present invention, button Control-Menu shown in Fig. 2 has menu items such as " menu ", " volume ", " signal ", " channel ", " withdrawing from ", and entering the menu item of choosing can be provided with.
When rotating disk 101 is pressed, drives metal shaft 103 and control switch 104 and press down, connect D, E two ends, produce the Enter signal, trigger the button Control-Menu, its screen display as shown in Figure 2, this menu has 5 options, and the expression rotating disk rotates the selection that 5 lattice can be finished these menu Total Options.
According to MCU performance in the TV signal processing system utilizing which and I/O resource situation, can adopt interrupt mode or inquiry mode to judge the direction of rotation and the rotation lattice number of rotating disk in embodiments of the present invention.If system has under the situation of the available I/O with interrupt function, can adopt interrupt mode.If system does not have available when having the I/O of interrupt function, can only adopt inquiry mode:
1, interrupt mode.The simplest method that obtains the level change frequency of waveform is exactly that pin is interrupted in the signal input, and the mode that triggers with the edge realizes.For example judge as interrupt source signal, when signal triggering is interrupted, if triggering mode is bilateral along triggering with the B signal, also need the B signal is carried out the differentiation of high-low level,, then interrupt triggering for rising edge if B is a high level, if B is a low level, then interrupt triggering for trailing edge; If triggering mode is monolateral along triggering, be rising edge triggering or trailing edge and trigger, then need not to judge the height of B signal level.Waveform by observing Fig. 3 and Fig. 4 as can be known, as interrupt source, when interrupting triggering, if the level of A is identical with the level of B, then the rotating disk direction of rotation is clockwise, if A is different with the level of B, then for being rotated counterclockwise with the B signal.Every triggering is once interrupted, and just illustrates that rotating disk has rotated lattice, and MCU can make control corresponding.
Advantage with interrupt mode is not need to go to inquire about A, B level signal always, only when being arranged, down trigger inquires about, burden to MCU is smaller, but need use the level that a middle fracture reads the B signal, the detection of a-signal, Standby signal, Enter signal level can be adopted three I/O mouths of MCU respectively or read this three signals by one road ADC mouth.
2, inquiry mode.It is poor if having time to suppose between two rising edges of A, B signal, as an example of the present invention, this time difference is 5ms as shown in Figure 4, therefore, in order to know that A, B signal are the level variations earlier of which signal, need be made as the time interval of inquiry less than 5ms, after avoiding occurring first signal level variation, untimely because of inquiring about, after the level of second signal also changes, just inquire about and can't know it is the problem which signal changes earlier.
During inquiry, need to preserve level state (level last time of a-signal, level last time of B signal of this inquiry, these two variablees need read A, B signal earlier when initialization level carries out initialization), whether change in order to when inquiring about, compare decision level next time.When the level of a-signal or B signal and the state of last time are different, have following four kinds may:
1. a-signal level last time is low, and the current level of a-signal is high, and the level of B signal is constant and be low level, and the rising edge that then can be judged as a-signal was that clockwise direction rotates before the B signal;
2. a-signal level last time is high, and the current level of a-signal is low, and the level of B signal is constant and be high level, and the trailing edge that then can be judged as a-signal was that clockwise direction rotates before the B signal;
3. B signal level last time is low, and the current level of B signal is high, and the level of a-signal is constant and be low level, and then the rising edge that can be judged as the B signal was counterclockwise to rotate before a-signal;
4. B signal level last time is high, and the current level of B signal is low, and the level of a-signal is constant and be high level, and then the trailing edge that can be judged as the B signal was counterclockwise to rotate before a-signal.Whenever inquire a level and change, judge direction of rotation, just can give signal of MCU, and do corresponding control.
When adopting inquiry mode, because the time interval of inquiry must be less than the time difference between two rising edges of A, B signal, 5ms for example may increase the burden of MCU resource like this.
When adopting the level of inquiry mode inquiry A, B, Standby, Enter signal, can go to read with 4 I/O mouths of MCU, also can go to read with 2 road ADC mouths of MCU, A, B signal had better not shared ADC mouths.Because adopt the ADC mouth to read the more MCU resource of signal demand, so only in the I/O of MCU mouth deficiency, and have 2 the road or more adopt under the situation of ADC mouth resource.
The rotating disk direction of rotation and the lattice number that obtain according to above-mentioned determination methods enter the menu item that the user selects, and some selected states that is in the option promptly shown in Figure 2 are pushed rotating disk 101 again and entered.
If what enter is " menu " item, menu shown in Figure 5 appears.Picture in picture picture, sound, be provided with etc. is the one-level main menu, and A1, A2, A3, return etc. is second-level menu.Rotary turnplate is selected the option of one-level main menu, is example with " image ", and " image " pushes rotating disk when being selected state, enter second-level menu; Rotary turnplate need to select the option of setting in second-level menu once more, is example with " A2 ", selects A2, menu shown in Figure 6 occurs.Can carry out switching between A2 and the A2_OBJ (some objective attribute target attributes that A2_OBJ represents " image ") by "enter" key", thereby realize control custom menu; Rotary turnplate and push rotating disk when " returning " is selected can be got back to the one-level main menu again.All the other sound, be provided with etc. one-level the main menu item that step is set is identical therewith, repeat no more.
If what enter is " volume " item, menu shown in Figure 7 can appear, as an example of the present invention, the rotating disk volume that turns clockwise increases (+), be rotated counterclockwise the rotating disk volume and reduce (-), the size of " 50 " expression volume among Fig. 7, the adjusting clockwise, that the inverse clock rotary turnplate can realize volume.
If what enter is " channel " (to non-TV signal source, this be can not selected state), menu shown in Figure 8 can appear, and clockwise, the inverse clock rotary turnplate can realize the switching of channel, " CH " among Fig. 8 represents channel item.
If what enter is " signal source " item, menu shown in Figure 9 appears, optional signal sources such as TV, AV, DVD are arranged.Rotary turnplate just can be carried out signal source and be selected, and chooses required signal source, pushes jog key again and just can carry out the signal source switching.
As from the foregoing, in embodiments of the present invention, adopt passive mechanical rotary encoder realized television set by key control, the circuit connection structure that is rotating disk adopts the mode of contact, change contacting (receiving ground C), the voltage of square-wave signal is zero, changes a lower contact again and disconnects, and the voltage of square-wave signal is supply voltage VCC.
In the embodiment of the invention, circuit structure is simple, and the device that needs is few, has reduced cost, and simultaneously, connecting line is less than 6, i.e. two square-wave signal lines, Enter holding wire, power line, ground wire etc.In addition, have only a rotating disk and one to treat switch on the panel shell of television, do not have the too many and situation about pressing the wrong button of button, profile is also more succinctly attractive in appearance.
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 (9)
1. the key control device of a television set is characterized in that, described device comprises:
Key switch is by being pressed or rotating the realization button operation;
Encoder is connected with described key switch, according to the direction of rotation and the rotation amplitude of described key switch, exports first signal and secondary signal; And
Control switch is connected with described key switch, when described key switch is pressed, and the circuit between connection and the external power supply, output confirmation signal.
2. device as claimed in claim 1 is characterized in that, described device also comprises:
Treat switch, be connected, when being pressed, connect external power supply, the output standby signal with external power supply.
3. device as claimed in claim 1 is characterized in that, described key switch comprises:
Rotating disk is by being pressed or rotating the realization button operation;
Metal shaft connects described rotating disk and described encoder, and connects described rotating disk and described control switch, when described rotating disk is rotated, trigger described encoder and export first signal and secondary signal, when described rotating disk is pressed, trigger described control switch output confirmation signal.
4. as claim 1 or 3 described devices, it is characterized in that described first signal, secondary signal are square-wave signal, when described rotating disk was turned clockwise, described first signal level just changed prior to described secondary signal level and just changes; When described rotating disk was rotated counterclockwise, described secondary signal level just changed prior to described first signal level and just changes.
5. a television set is characterized in that, described television set comprises:
Key control device, described device comprises:
Key switch, described key switch is by being pressed, rotating the realization button operation;
Encoder is connected with described key switch, according to the direction of rotation and the rotation amplitude of described key switch, exports first signal and secondary signal; And
Control switch is connected with described key switch, when described key switch is pressed, and the circuit between connection and the external power supply, output confirmation signal;
Microcontroller detects first signal, secondary signal or confirmation signal that described key control device is exported, output detection information; And
Button menu control unit is used for the output key menu, realizes the setting of button menu according to described detection information.
6. television set as claimed in claim 5 is characterized in that, described key control device also comprises:
Treat switch, be connected, when being pressed, connect external power supply, the output standby signal with external power supply.
7. television set as claimed in claim 5 is characterized in that, described key switch comprises:
Rotating disk is by being pressed or rotating the realization button operation;
Metal shaft connects described rotating disk and described encoder, and connects described rotating disk and described control switch, when described rotating disk is rotated, trigger described encoder and export first signal and secondary signal, when described rotating disk is pressed, trigger described control switch output confirmation signal.
8. as claim 5 or 7 described television sets, it is characterized in that described first signal, secondary signal are square-wave signal, when described rotating disk was turned clockwise, described first signal level just changed prior to described secondary signal level and just changes; When described rotating disk was rotated counterclockwise, described secondary signal level just changed prior to described first signal level and just changes.
9. as claim 5 or 7 described television sets, it is characterized in that, described microcontroller is by detecting described first signal and described secondary signal, according to interrupt mode or inquiry mode, judge the direction of rotation and the rotation lattice number of described rotating disk, the respective menu items of controlling described button menu is selected state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100750900A CN101193233A (en) | 2007-06-20 | 2007-06-20 | TV set key control device and TV set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100750900A CN101193233A (en) | 2007-06-20 | 2007-06-20 | TV set key control device and TV set |
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| CN101193233A true CN101193233A (en) | 2008-06-04 |
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| CNA2007100750900A Pending CN101193233A (en) | 2007-06-20 | 2007-06-20 | TV set key control device and TV set |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101521764B (en) * | 2008-12-17 | 2013-01-02 | 康佳集团股份有限公司 | TV set with revolving functional key and method for adjusting functions |
| CN106950649A (en) * | 2017-05-19 | 2017-07-14 | 南京吉隆光纤通信股份有限公司 | A kind of heat sealing machine with rotary coding switch |
| CN107802472A (en) * | 2017-11-22 | 2018-03-16 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and its method with crossing alarm function |
| CN107913159A (en) * | 2017-11-22 | 2018-04-17 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and method by the accurate indicating position of infrared signal |
| CN107929004A (en) * | 2017-11-22 | 2018-04-20 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and method that can obtain positional information automatically |
| CN107929003A (en) * | 2017-11-22 | 2018-04-20 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and method for obtaining positional information automatically by infrared signal |
| CN108307215A (en) * | 2017-01-11 | 2018-07-20 | 三星电子株式会社 | Image display and its operating method |
| CN108873763A (en) * | 2017-05-11 | 2018-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Operating mode adjusting method, device and equipment |
| CN109388080A (en) * | 2017-08-04 | 2019-02-26 | 佛山市顺德区美的电热电器制造有限公司 | Control method, device and the electrical equipment of coder switch |
| CN109445329A (en) * | 2018-10-22 | 2019-03-08 | 四川虹美智能科技有限公司 | A kind of refrigerator functions selection system and method |
| CN109672916A (en) * | 2018-12-29 | 2019-04-23 | 深圳Tcl新技术有限公司 | Switching method, television set and the storage medium of information source |
| CN111243232A (en) * | 2020-03-20 | 2020-06-05 | 珠海格力电器股份有限公司 | Alarm device, alarm system and alarm method |
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2007
- 2007-06-20 CN CNA2007100750900A patent/CN101193233A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521764B (en) * | 2008-12-17 | 2013-01-02 | 康佳集团股份有限公司 | TV set with revolving functional key and method for adjusting functions |
| CN108307215A (en) * | 2017-01-11 | 2018-07-20 | 三星电子株式会社 | Image display and its operating method |
| CN108873763A (en) * | 2017-05-11 | 2018-11-23 | 佛山市顺德区美的电热电器制造有限公司 | Operating mode adjusting method, device and equipment |
| CN106950649A (en) * | 2017-05-19 | 2017-07-14 | 南京吉隆光纤通信股份有限公司 | A kind of heat sealing machine with rotary coding switch |
| CN109388080A (en) * | 2017-08-04 | 2019-02-26 | 佛山市顺德区美的电热电器制造有限公司 | Control method, device and the electrical equipment of coder switch |
| CN107913159A (en) * | 2017-11-22 | 2018-04-17 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and method by the accurate indicating position of infrared signal |
| CN107929003A (en) * | 2017-11-22 | 2018-04-20 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and method for obtaining positional information automatically by infrared signal |
| CN107929004A (en) * | 2017-11-22 | 2018-04-20 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and method that can obtain positional information automatically |
| CN107802472A (en) * | 2017-11-22 | 2018-03-16 | 佛山市海科云筹信息技术有限公司 | A kind of blind man's stick and its method with crossing alarm function |
| CN109445329A (en) * | 2018-10-22 | 2019-03-08 | 四川虹美智能科技有限公司 | A kind of refrigerator functions selection system and method |
| CN109672916A (en) * | 2018-12-29 | 2019-04-23 | 深圳Tcl新技术有限公司 | Switching method, television set and the storage medium of information source |
| CN109672916B (en) * | 2018-12-29 | 2022-03-11 | 深圳Tcl新技术有限公司 | Information source switching method, television and storage medium |
| CN111243232A (en) * | 2020-03-20 | 2020-06-05 | 珠海格力电器股份有限公司 | Alarm device, alarm system and alarm method |
| CN111243232B (en) * | 2020-03-20 | 2022-02-22 | 珠海格力电器股份有限公司 | Alarm device, alarm system and alarm method |
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