CN202339631U - Transmitting and learning control circuit of remote control, remote control and tablet computer - Google Patents
Transmitting and learning control circuit of remote control, remote control and tablet computerDownload PDFInfo
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- CN202339631U CN202339631UCN2011203664947UCN201120366494UCN202339631UCN 202339631 UCN202339631 UCN 202339631UCN 2011203664947 UCN2011203664947 UCN 2011203664947UCN 201120366494 UCN201120366494 UCN 201120366494UCN 202339631 UCN202339631 UCN 202339631U
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Abstract
Description
Technical Field
The utility model relates to an electrical equipment field especially relates to a remote controller transmission and study control circuit, remote controller and panel computer.
Background
At present, most household appliances are equipped with remote controllers, and although the use of the remote controllers can bring much convenience to users, when the remote controllers of the household appliances are used in a large number, the storage and the use of the remote controllers can bring much inconvenience to the users. For example, a television remote controller and a set-top box remote controller are used for turning on and turning off a television, the television remote controller is needed for operation, the set-top box remote controller is needed for program selection, and a user can watch television programs only by using the two remote controllers.
In order to solve the above inconvenience, recently, a multifunctional remote controller with a learning function has appeared, which has a learning function, i.e., can record and store control signals of a plurality of remote controllers, and further has a function of a plurality of remote controllers, and can replace a plurality of remote controllers to realize control of a plurality of home appliances.
Taking the television turn-on signal learning as an example, the following briefly describes the learning process of the existing multifunctional remote controller, and comprises the following steps:
1. the television remote controller transmits an infrared signal of television startup to the multifunctional remote controller, and the infrared signal uses NEC codes;
2. after the multifunctional remote controller receives the infrared signal, judging whether the received signal conforms to the format of the guide code of the NEC, if so, performing NEC decoding, otherwise, giving up the infrared signal;
3. the multifunctional remote controller associates and stores the decoded digital signal and the NEC coding format with a control command (television startup) used by the multifunctional remote controller;
4. when the multifunctional remote controller is used, a user selects a television startup key on the multifunctional remote controller, the multifunctional remote controller calls the digital signal and the NEC coding format to generate an infrared control signal, codes the infrared control signal according to the NEC coding format, and sends the infrared control signal to the television to control the television to be started.
To implement the above steps, a dedicated encoding and decoding IC needs to be built in the multifunctional remote controller to complete the functions of decoding, analyzing, encoding and the like of the infrared signals, the encoding and decoding are various, such as NEC code, RC5 code and the like, one encoding and decoding IC is difficult to implement the decoding of the infrared signals of various encoding formats, the application range is narrow, and the learning capability of the multifunctional remote controller is also limited.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a do not receive the coding and decoding restriction, and realize simple remote controller transmission and study control circuit, remote controller and panel computer.
In order to achieve the above object, the remote controller transmitting and learning control circuit comprises:
the infrared signal conversion circuit receives an infrared signal and outputs a corresponding high/low level signal according to the infrared signal;
the storage chip stores high/low level signals output by the infrared signal conversion circuit and a plurality of continuous first control instruction signals corresponding to the infrared signals;
the control instruction receiving circuit receives a second control instruction input from the outside, searches a first control instruction which is the same as the second control instruction in the storage chip, and calls the first control instruction and a plurality of high/low level signals corresponding to the first control instruction; and the number of the first and second groups,
and the infrared signal transmitting circuit transmits corresponding infrared signals according to the high/low level signals called by the control instruction receiving circuit.
Further, the infrared conversion circuit includes: the infrared receiving triode, the first triode and the second triode; wherein,
the collector of the infrared receiving triode is coupled with the high level of the power supply, and the emitter of the infrared receiving triode is grounded;
the base electrode of the first triode is coupled with the anode of the infrared receiving triode, the emitter electrode of the first triode is coupled with the high level of the power supply, and the collector electrode of the first triode is grounded;
and the base electrode of the second triode is coupled with the collector electrode of the first triode, the collector electrode of the second triode is coupled with the high level of the power supply and the high/low level signal output end of the infrared signal conversion circuit, and the emitting electrode of the second triode is grounded.
Further, a first resistor is connected in series between the emitter of the infrared receiving triode and the base of the first triode;
a second resistor is connected in series between the anode of the infrared receiving triode and the ground;
a third resistor is connected in series between the collector of the first triode and the base of the second triode;
a fourth resistor is connected in series between the collector of the second triode and the high level of the power supply;
and a fifth resistor is connected in series between the collector of the first triode and the ground.
Furthermore, a first capacitor is connected in parallel to two ends of the fifth resistor.
Further, the infrared signal transmitting circuit includes: a third triode and an infrared emitting diode; wherein,
the base electrode of the third triode is coupled with the high/low level output end of the control instruction receiving circuit, the collector electrode of the third triode is coupled with the negative electrode of the infrared emitting diode, and the emitter electrode of the third triode is grounded;
and the anode of the infrared emitting diode is coupled to a high level of a power supply, and the cathode of the infrared emitting diode is coupled to the collector of the third triode.
Furthermore, a sixth resistor is connected in series between a high/low level output end of the control instruction receiving circuit and a base electrode of the third triode;
and a seventh resistor is connected in series between the collector of the third triode and the cathode of the infrared emitting diode.
Furthermore, a second capacitor and an eighth resistor are connected in series between the high power level and the ground, and the second capacitor and the eighth resistor are connected in parallel.
Furthermore, a third capacitor and a fourth capacitor are connected in series between the high power level and the ground, and the third capacitor and the fourth capacitor are connected in parallel.
In order to achieve the above object, the remote controller of the present invention comprises the above remote controller transmitting and learning control circuit.
In order to achieve the above object, the tablet computer of the present invention comprises the above remote controller transmitting and learning control circuit.
The utility model has the advantages that:
1. the utility model discloses a simple triode sets up the circuit and has realized remote control function's study promptly, has saved the coding and decoding IC among the prior art remote control circuit, is favorable to structural design and saves the cost.
2. The utility model discloses with the infrared signal received, convert high/low level output and save, the storage of high/low level can be expressed as such code of 0101, and do not pay attention to its encoding mode. When remote control is carried out, the 0101 codes are converted into corresponding high/low levels to generate original infrared signal waveforms to be transmitted, and control over equipment is achieved. Therefore, infrared signals adopting various coding modes can be learned, and the method is not limited by a coding and decoding IC and has wide adaptability.
3. The utility model discloses with remote controller transmission and study control circuit integration in panel computer (PAD) for the panel computer has the function of remote controller, brings more facilities for the user like this.
Drawings
Fig. 1 is a schematic circuit diagram of a specific embodiment of the remote control transmitting and learning control circuit of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings.
As shown in fig. 1, the remote controller transmitting and learning control circuit of the present invention comprises:
the infraredsignal conversion circuit 1 receives an infrared signal and outputs a corresponding high/low level signal RF _ IN according to the infrared signal;
a memory chip (not shown IN the figure) for storing the high/low level signal RF _ IN outputted by the infrared signal conversion circuit and the first control instruction signals corresponding to a plurality of continuous infrared signals;
a control command receiving circuit (not shown in the figure) for receiving a second control command inputted from the outside, searching a first control command identical to the second control command in the memory chip, and calling the first control command and a plurality of high/low level signals RF _ L _ OUT corresponding to the first control command; and
and the infraredsignal transmitting circuit 2 transmits corresponding infrared signals according to the high/low level signals called by the control instruction receiving circuit.
Remote controller transmission and study control circuit integration in PAD, PAD has the ability that can learn various remote control functions, realizes the remote control to various furniture electrical apparatus.
As a further embodiment of the present invention, the infrared conversion circuit described in the above embodiment, as shown in fig. 1, includes: the infrared receiving triode VD4, the first triode V10 and the second triode V14; wherein,
the collector of the infrared receiving triode is coupled with the high level of the power supply, and the emitter of the infrared receiving triode is grounded;
the base electrode of the first triode is coupled with the anode of the infrared receiving triode, the emitter electrode of the first triode is coupled with the high level of the power supply, and the collector electrode of the first triode is grounded;
and the base electrode of the second triode is coupled with the collector electrode of the first triode, the collector electrode of the second triode is coupled with the high level of the power supply and the high/low level signal output end of the infrared signal conversion circuit, and the emitting electrode of the second triode is grounded.
The working principle of the infrared conversion circuit described in this embodiment is as follows: when the infrared receiving triode VD4 receives infrared light, the infrared receiving triode VD4 is conducted to enable the base electrode of the first triode V10 to be at a high level, the collector electrode of the first triode V10 outputs a high level to enable the collector electrode of the second triode V14 to output a low level, and therefore the high/low level signal output end RF _ IN of the infrared signal conversion circuit is converted from the high level to the low level, namely the low level is output; on the contrary, when there is no infrared light, the infrared receiving triode VD4 is not turned on, so that the first triode V10 is turned off, i.e., the low level, and the collector of the second triode V14 is at the high level, so that the high/low level signal output terminal RF _ IN of the infrared signal conversion circuit maintains the high level, i.e., the high level is output. The memory chip stores high and low level change information of a high/low level signal output terminal RF _ IN of the infrared signal conversion circuit, the high and low level change information being substantially represented as a series of information consisting of 0 and 1, i.e., a high level corresponds to 1 and a low level corresponds to 0.
As shown in fig. 1, in order to ensure the stable and reliable operation of the infrared conversion circuit in the above embodiment, a first resistor R191 is connected in series between the anode of the infrared receiving transistor VD4 and the base of the first transistor V10, and the first resistor R191 is a base current limiting resistor configured to limit the excessive current flowing into the base of the first transistor V10 and thus prevent the transistor from being damaged. A second resistor R197 is connected in series between the anode of the infrared receiving triode VD4 and the ground, and the second resistor R197 is set to provide a DC bias working voltage for the first triode VD 4. A third resistor R194 is connected in series between the collector of the first triode V10 and the base of the second triode V14, and the third resistor R194 and the first resistor R191 also play a role in limiting the base current, thereby preventing the second triode from being burned out due to an overlarge base circuit. A fourth resistor R195 is connected in series between the collector of the second transistor V14 and the power high level Vcc, and the fourth resistor R195 is also a current limiting resistor, which is mainly used to stabilize the high level of the collector terminal of the second transistor V14. A fifth resistor R196 is connected in series between the collector of the first transistor V10 and ground, and functions like the second resistor R197 to provide a dc bias operating voltage for the second transistor V14.
Furthermore, a first capacitor C288 is connected in parallel to two ends of the fifth resistor R196, and the first capacitor C288 is a high-frequency filter capacitor.
As the utility model discloses still further embodiment, infraredsignal transmitting circuit 2, include: a third triode V13 and an infrared emitting diode VD 3; wherein,
the base of the third triode V13 is coupled to the high/low level output end RF _ L _ OUT of the control command receiving circuit, the collector is coupled to the cathode of the infrared emitting diode VD3, and the emitter is grounded;
the anode of the ir diode VD3 is coupled to the high power Vcc, and the cathode is coupled to the collector of the third transistor V13.
The operating principle of the infraredsignal transmitting circuit 2 in this embodiment is as follows: when the high/low level output end RF _ L _ OUT is at a high level of the power supply, the third triode V13 is conducted, and the infrared emitting diode VD3 sends a high level signal of the power supply (namely, emits light); when the RF _ L _ OUT is at a low level, the third transistor V13 is turned off, and the ir-emitting diode VD3 sends a low level signal (i.e., does not emit light).
As a further embodiment of the foregoing embodiment, in order to ensure that the infrared signal transmitting circuit described in the foregoing embodiment operates stably and reliably, a sixth resistor R189 is connected in series between the high/low level output terminal RF _ L _ OUT of the control command receiving circuit and the base of the third transistor V13; a seventh resistor R5 is connected in series between the collector of the third triode V13 and the cathode of the infrared emitting diode VD 3. The sixth resistor R189 and the seventh resistor R5 are both current-limiting resistors. The utility model discloses the accessible configuration sixth resistance R189 and seventh resistance R5, make third triode V13 is in the enlarged state.
In a further embodiment of the above embodiments, a second capacitor C287 and an eighth resistor RV9 are connected in series between the power high level Vcc and the ground, and the second capacitor C287 and the eighth resistor RV9 are connected in parallel, as shown in fig. 1. The second capacitor C287 is a filter capacitor, so that the level output by the power supply can be ensured to be more stable without interfering signals; the eighth resistor RV9 is a voltage dependent resistor, plays a role in electrostatic protection, and prevents fast high voltage breakdown of diodes and/or triodes connected to the output end of the power supply high-level Vcc. A second capacitor C287 and an eighth resistor RV9 may be disposed at the anode of the ir-emitting diode for protection.
Further, a third capacitor C290 and a fourth capacitor C289 are connected in series between the power high level Vcc and the ground, and the third capacitor C290 and the fourth capacitor C289 are connected in parallel, as shown in fig. 1. The third capacitor C290 and the fourth capacitor C289 are both filter capacitors, and can prevent the interference of power end signals. The third capacitor C290 and the fourth capacitor C289 may be disposed at one end of the collector of the second transistor V14 (as shown in fig. 5), so as to ensure that the power supply of the collector V14 of the second transistor is stable and has no interference.
The remote controller of the present invention comprises the remote controller emitting and learning control circuit in each of the above embodiments.
The tablet computer of the present invention integrates the remote controller emitting and learning control circuit in each of the above embodiments. The tablet personal computer is more and more commonly used at present, a remote controller transmitting and learning control circuit is integrated into the tablet personal computer, the existing remote controller can be abandoned, and the remote control of various electric appliances can be completed when a user uses the tablet personal computer, so that the modern life is more convenient.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (10)
1. A remote control transmission and learning control circuit, comprising:
the infrared signal conversion circuit receives an infrared signal and outputs a corresponding high/low level signal according to the infrared signal;
the storage chip stores high/low level signals output by the infrared signal conversion circuit and a plurality of continuous first control instruction signals corresponding to the infrared signals;
the control instruction receiving circuit receives a second control instruction input from the outside, searches a first control instruction which is the same as the second control instruction in the storage chip, and calls the first control instruction and a plurality of high/low level signals corresponding to the first control instruction; and the number of the first and second groups,
and the infrared signal transmitting circuit transmits corresponding infrared signals according to the high/low level signals called by the control instruction receiving circuit.
2. The remote control transmitting and learning control circuit of claim 1 wherein the infrared conversion circuit comprises: the infrared receiving triode, the first triode and the second triode; wherein,
the collector of the infrared receiving triode is coupled with the high level of the power supply, and the emitter of the infrared receiving triode is grounded;
the base electrode of the first triode is coupled with the anode of the infrared receiving triode, the emitter electrode of the first triode is coupled with the high level of the power supply, and the collector electrode of the first triode is grounded;
and the base electrode of the second triode is coupled with the collector electrode of the first triode, the collector electrode of the second triode is coupled with the high level of the power supply and the high/low level signal output end of the infrared signal conversion circuit, and the emitting electrode of the second triode is grounded.
3. The remote control transmit and learn control circuit of claim 2,
a first resistor is connected in series between the emitting electrode of the infrared receiving triode and the base electrode of the first triode;
a second resistor is connected in series between the anode of the infrared receiving triode and the ground;
a third resistor is connected in series between the collector of the first triode and the base of the second triode;
a fourth resistor is connected in series between the collector of the second triode and the high level of the power supply;
and a fifth resistor is connected in series between the collector of the first triode and the ground.
4. The remote control transmission and learning control circuit of claim 3, wherein a first capacitor is connected in parallel across the fifth resistor.
5. The remote control transmission and learning control circuit of claim 1 wherein the infrared signal transmission circuit comprises: a third triode and an infrared emitting diode; wherein,
the base electrode of the third triode is coupled with the high/low level output end of the control instruction receiving circuit, the collector electrode of the third triode is coupled with the negative electrode of the infrared emitting diode, and the emitter electrode of the third triode is grounded;
and the anode of the infrared emitting diode is coupled to a high level of a power supply, and the cathode of the infrared emitting diode is coupled to the collector of the third triode.
6. The remote control transmit and learn control circuit of claim 5,
a sixth resistor is connected in series between the high/low level output end of the control instruction receiving circuit and the base electrode of the third triode;
and a seventh resistor is connected in series between the collector of the third triode and the cathode of the infrared emitting diode.
7. The remote control transmission and learning control circuit of claim 1 wherein a second capacitor and an eighth resistor are connected in series between the power high level and ground, the second capacitor and eighth resistor being connected in parallel.
8. The remote control transmission and learning control circuit of claim 1, wherein a third capacitor and a fourth capacitor are connected in series between the power high level and ground, the third capacitor and the fourth capacitor being connected in parallel.
9. A remote control, comprising: the remote control transmission and learning control circuit of any one of claims 1 to 8.
10. A tablet computer comprising the remote control transmitting and learning control circuit of any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203664947UCN202339631U (en) | 2011-09-29 | 2011-09-29 | Transmitting and learning control circuit of remote control, remote control and tablet computer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203664947UCN202339631U (en) | 2011-09-29 | 2011-09-29 | Transmitting and learning control circuit of remote control, remote control and tablet computer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915634A (en)* | 2012-11-16 | 2013-02-06 | 上海广电电子科技有限公司 | Tablet personal computer, remote control signal acquisition method and remote control method |
| CN103325239A (en)* | 2013-06-27 | 2013-09-25 | 苏州创智宏云信息科技有限公司 | Household intelligent learning terminal |
| CN103680115A (en)* | 2012-09-14 | 2014-03-26 | 凹凸电子（武汉）有限公司 | Remote control learning method and device for terminal equipment |
| CN107545717A (en)* | 2016-06-23 | 2018-01-05 | 瑞昱半导体股份有限公司 | Infrared learning device |
| CN108182796A (en)* | 2018-01-23 | 2018-06-19 | 浙江国视科技有限公司 | A kind of IR remote controller and remote control thereof |
- 2011
- 2011-09-29CNCN2011203664947Upatent/CN202339631U/ennot_activeExpired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103680115A (en)* | 2012-09-14 | 2014-03-26 | 凹凸电子（武汉）有限公司 | Remote control learning method and device for terminal equipment |
| CN102915634A (en)* | 2012-11-16 | 2013-02-06 | 上海广电电子科技有限公司 | Tablet personal computer, remote control signal acquisition method and remote control method |
| CN103325239A (en)* | 2013-06-27 | 2013-09-25 | 苏州创智宏云信息科技有限公司 | Household intelligent learning terminal |
| CN107545717A (en)* | 2016-06-23 | 2018-01-05 | 瑞昱半导体股份有限公司 | Infrared learning device |
| CN107545717B (en)* | 2016-06-23 | 2019-10-25 | 瑞昱半导体股份有限公司 | Infrared learning device |
| CN108182796A (en)* | 2018-01-23 | 2018-06-19 | 浙江国视科技有限公司 | A kind of IR remote controller and remote control thereof |
| CN108182796B (en)* | 2018-01-23 | 2024-07-19 | 浙江国视科技有限公司 | Infrared remote controller and remote control method |
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