CN201111721Y - Device for extending infrared remote-controlling signal transmission distance by radio wave - Google Patents
Device for extending infrared remote-controlling signal transmission distance by radio wave Download PDFInfo
- Publication number
- CN201111721Y CN201111721Y CNU2007200874148U CN200720087414U CN201111721Y CN 201111721 Y CN201111721 Y CN 201111721Y CN U2007200874148 U CNU2007200874148 U CN U2007200874148U CN 200720087414 U CN200720087414 U CN 200720087414U CN 201111721 Y CN201111721 Y CN 201111721Y
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- slave
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- chip microcomputer
- infrared
- infrared remote
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Abstract
The utility model provides a device for extending the transmission distance of the infrared remote control signal by radio waves, comprising a master machine and a slave machine, the slave machine comprises a power supply (1), an infrared receiving circuit (2), a single-chip microcomputer of the slave machine (3), a radio frequency modulation circuit (4) and a transmitting antenna (5); the output of the infrared receiving circuit (2) is connected with the single-chip microcomputer of the slave machine (3), the output end of the single-chip microcomputer of the slave machine (3) is connected with the radio frequency modulation circuit (4), the output of the radio frequency modulation circuit is connected with the transmitting antenna (5); the master machine comprises a power supply (6), a receiving antenna (7), a radio frequency demodulation circuit (8), a single-chip microcomputer of the master machine (9) and an infrared transmitting circuit (10); the receiving antenna (7) of the master machine is connected with the input end of the radio frequency demodulation circuit (8), the output end of the radio frequency demodulation circuit (8) is connected with the single-chip microcomputer of the master machine (9), the single-chip microcomputer of the master machine (9) is connected with the infrared transmitting circuit; the single-chip microcomputer of the slave machine (3) and the single-chip microcomputer of the master machine (9) are respectively connected with a code matching button.
Description
Technical field
The utility model relates to a kind of device that extends the infrared remote-controlled signal transmission range by radiowave, be used for the long-distance transmissions infrared remote-controlled signal, important feature as this programme, utilize radiowave complete transmission infrared remote-controlled signal, good format compatible is arranged, and, solved the problem of proximal subscribers phase mutual interference by inserting slave ID identification code.Belong to singlechip technology, infrared remote control transmission technology, radio transmission techniques.
Background technology
A large amount of civil electric appliances all possesses function of infrared remote control now, but the characteristic of infrared remote-controlled signal is the straight line visual range to transmit, and transmission range is very limited, mostly about 10 meters, if blocked or the interference of external optical signals (as electricity-saving lamp, micro-wave oven, warmer or the like), will lose efficacy or remote control distance shortens.---wireless---the infrared mode by infrared can greatly be extended the transmission range of infrared remote-controlled signal, and has certain penetrability.And can by increasing emissive power, the efficient that improves antenna or the mode of receiving sensitivity, make remote control distance can extend fartherly as required.
Summary of the invention
The purpose of this utility model is to propose a kind of method and device by radiowave extension infrared remote-controlled signal transmission range, and this method maintains better signal format compatibility by the whole infrared remote-controlled signal of transmitting; By slave being provided with unique ID identification code, the assurance proximal subscribers is not disturbed mutually simultaneously.The user can be in certain scope, the infrared remote control equipment that draws oneself up, and can the infrared remote control equipment of proximal subscribers not impacted.
The technical solution of the utility model: the device by radiowave extension infrared remote-controlled signal transmission range of the present utility model comprises main frame and slave, and slave comprises power supply 1, infrared receiving circuit 2, slave single-chip microcomputer 3, rf modulation circuit 4, emitting antenna 5; The output of infrared receiving circuit 2 is connected with slave single-chip microcomputer 3, and the output terminal of slave single-chip microcomputer 3 is connected with rf modulation circuit 4, and the output of rf modulation circuit is connected to emitting antenna 5; Main frame comprises power supply 6, receiving antenna 7, radio demodulating circuit 8, host SCM 9, infrared emission circuit 10; The receiving antenna 7 of main frame is connected with the input end of radio demodulating circuit 8, and the output terminal of radio demodulating circuit 8 is connected with host SCM 9, and host SCM 9 is connected with the infrared emission circuit; Slave single-chip microcomputer 3 is connected respectively with to the sign indicating number button with host SCM 9.
Described device by radiowave extension infrared remote-controlled signal transmission range can be integrated together slave and Infrared remote controller, at this moment slave and Infrared remote controller common source 1, infrared receiving circuit 2 single-chip microcomputers 3.
Principle is:
1) under the control of slave single-chip microcomputer, with the temporary storer that arrives of the baseband signal of infrared receiving circuit conversion, the ID identification code of slave is sent into rf modulation circuit, go out by transmission antennas transmit; The ID identification code of each slave is unique.
2) after the several milliseconds of ID identification code emission, more temporary infrared remote control baseband signal is sent into rf modulation circuit, go out by transmission antennas transmit;
3) receiving antenna of main frame is sent the radiofrequency signal of receiving into the radio demodulating circuit, and order demodulates ID identification code and infrared remote-controlled signal and sends into host SCM;
4) host SCM compares ID identification code and the ID identification code that prestores earlier, if identical, then transmit infrared remote-controlled signal thereafter, otherwise will not transmit.
Temporary and the forwarding of infrared signal is that whole signal waveform is handled, form that like this can compatible various infrared remote-controlled signals.
Advantage of the present utility model:
The utility model has solved the problem that the infrared remote-controlled signal transmission range is short, shelter can not be arranged, disturbed easily well, makes the user can control the infrared remote control equipment in other room at an easy rate in any room.This programme can be integrated in every way in the infrared remote control equipment and go.Owing to adopt radiowave+ID identification code to transmit the technical scheme of infrared remote-controlled signal, make manipulating of user more flexible.Temporary and the forwarding of infrared signal is that whole signal waveform is handled, form that like this can compatible various infrared remote-controlled signals.
The ID identification code of inserting every slave is unique, the distinguish of closing on can be come, and makes it not disturb mutually.
Description of drawings
Fig. 1 is the basic logic block diagram of the utility model scheme slave, main frame.
Fig. 2 is the utility model scheme slave circuit diagram.
Fig. 3 is the utility model scheme host circuit figure.
Fig. 4 is the circuit diagram that the utility model scheme slave and Infrared remote controller are integrated together.
Fig. 5 is the communication signal form of slave and main frame.
Fig. 6 is the program flow diagram of slave.
Fig. 7 is slave and the Infrared remote controller program flow diagram when integrated.
Fig. 8 is the program flow diagram of main frame.
Fig. 9 is the typical application drawing of the utility model scheme.
Embodiment
Fig. 1 is the basic logic block diagram of the utility model scheme slave, main frame:
The device of the utility model scheme: slave comprises power supply 1, infrared receiving circuit 2, slave single-chip microcomputer 3, rf modulation circuit 4, emitting antenna 5; The output of infrared receiving circuit 2 is connected with slave single-chip microcomputer 3, infrared receiving circuit 2 is delivered to single-chip microcomputer 3 with the base band infrared remote-controlled signal that detection goes out, single-chip microcomputer 3 is after differentiation is effective infrared remote-controlled signal, the ID identification code that sends slave immediately is to rf modulation circuit 4, the temporary simultaneously infrared remote-controlled signal that receives in the transmission ID identification code that finishes, is delayed time after several milliseconds, the infrared remote-controlled signal that sends storage is to rf modulation circuit 4 again, and radiofrequency signal is transmitted into by emitting antenna 5 in the air.
Main frame comprises power supply 6, receiving antenna 7, radio demodulating circuit 8, host SCM 9, infrared emission circuit 10; The receiving antenna 7 of main frame is connected with radio demodulating circuit 8, and the ID identification code output terminal that demodulates of radio demodulating circuit 8 is connected with host SCM 9.Receiving antenna 7 receives the radiowave of slave emission, deliver to radio demodulating circuit 8, demodulate " ID identification code+base band infrared remote-controlled signal ", deliver to host SCM 9, host SCM 9 is compared ID identification code and the ID identification code that prestores, if identical, then the base band infrared remote-controlled signal reverted to the infrared remote-controlled signal of band carrier wave and delivers to infrared emission circuit 10, drive infrared remote control equipment, otherwise just the infrared remote-controlled signal of the base band that receives is given up.
Fig. 2 is the utility model scheme slave circuit diagram
Infrared receiving circuit 2 (PIC1023SMB) is demodulated into the signal of Infrared remote controller emission the infrared remote-controlled signal of base band, and deliver to the interrupting input end mouth (P3.2) of slave single-chip microcomputer 3 (STC12C2052), single-chip microcomputer 3 is after the ID identification signal is inserted in the front portion of signal, output to the rf modulation circuit that constitutes by V1, Z2 and peripheral devices R3, R4, C6, C7, C8, L1 from the P3.7 port, be transmitted in the air via emitting antenna 5 then.C3 and R1 constitute the electrify restoration circuit of single-chip microcomputer, and C4, C5 and Z1 are clock circuits, and S1 is to the sign indicating number button, and V2 is work and to the sign indicating number pilot lamp.Circuit provides power supply by 4 joint 1.5V battery B1 and auxiliary circuit C9, V3, S2.
Fig. 3 is the utility model scheme host circuit figure
Receiving antenna 7 receives the radiowave of slave emission, delivers to radio demodulating circuit 8 (MICRF008BM), demodulates " ID identification code+base band infrared remote-controlled signal ", delivers to single-chip microcomputer 9 (STC12C2052).Single-chip microcomputer 9 is at first compared ID identification code that receives and the ID identification code that prestores, if it is identical, then the base band infrared remote-controlled signal is reverted to the infrared remote-controlled signal of band carrier wave and deliver to the infrared emission circuit that constitutes by V6, V7 and R8, R9, launch infrared remote-controlled signal, drive infrared remote control equipment, otherwise just the signal that receives is given up.V4, V5 are respectively work and to the sign indicating number pilot lamp, S3 is to the sign indicating number button, and T1 is a power supply adaptor, and the DC voltage of output after N5 (LM7805) voltage stabilizing, offers the circuit stable power.
Fig. 4 is the circuit diagram that the utility model scheme slave and Infrared remote controller are integrated together
Slave and telepilot are integrated together, but common source and single-chip microcomputer and saved infrared receiving circuit.Single-chip microcomputer 3 (mask IC) and P1-P48 keyboard circuit, Z1 crystal oscillator, infrared emission receiving tube V2 and peripheral components, functions such as the emission of realization infrared remote-controlled signal, study.By the output of the D0 port of single-chip microcomputer 3, the base band remote signal of prefix band ID identification code is delivered to emitting antenna 5 and is transmitted in the air after the strength circuit that is made of V1, Z2 and peripheral circuit is modulated.ID identification code code operations is also exported by the D0 mouth.Circuit provides power supply by 2 joints or 3 batteries.Slave and Infrared remote controller are integrated together, this moment slave and Infrared remote controller common source, infrared receiving circuit and single-chip microcomputer, ID identification code+base band infrared remote-controlled signal is directly provided by single-chip microcomputer.
Be respectively equipped with sign indicating number button S1, S3 between slave single-chip microcomputer 3 and host SCM 9 and the ground.Exist between main frame and slave the sign indicating number agreement, main frame is by obtaining effective slave ID identification code to the sign indicating number agreement, and the ID identification code of slave is prestored in the CPU, thereby can manage several slaves simultaneously.
Fig. 5 is the communication signal form of slave and main frame
The communication signal of slave and main frame is made up of " ID identification code " and " remote control code " two parts.The ID identification code is made of " ID start bit ", three parts of " ID " " ID stop bit " again.
Fig. 6 is the program flow diagram of slave
Slave is finished after the power-up initializing process, if the sign indicating number key is pressed, then sends the identical ID identification code of two strings, otherwise just wait for the input of infrared remote-controlled signal, if the infrared remote-controlled signal input is arranged, then send " ID+ remote control code " and give rf modulation circuit, turn back to original state then.
Fig. 7 is slave and the Infrared remote controller program flow diagram when integrated
When slave and Infrared remote controller are integrated, after power-up initializing is finished, the button of wait telepilot is pressed, when button is pressed, whether differentiate to the sign indicating number key earlier, if, then send the identical ID identification code of two strings, turn back to original state then, arrive rf modulation circuit to infrared emission circuit or transmission " ID+ remote control code ", turn back to original state then otherwise just send " remote control code ".If the telepilot of band learning functionality can also enter learning state.
Fig. 8 is the program flow diagram of main frame
Whether main frame is finished after the power-up initializing, at first differentiate " to the sign indicating number key " and press, and is then to enter coded program, otherwise just enters working routine.
Enter behind the coded program, wait for the ID identification code that slave sends, if receive the ID identification code that slave is sent, judge whether effective I D earlier, the invalid original state of then returning, effectively then relatively whether two string ID are identical, the original state of then returning inequality, identical then judging whether again stored this ID, stored and then returned original state, do not store then this ID was preserved, returned original state then.
After entering working routine, wait for " ID+ remote control code " that slave sends, if receive signal, earlier judge whether ID is effective, the invalid original state of then returning is effective then judge whether the ID that deposits with this organizational security is identical, the original state of then returning inequality again, identical infrared remote-controlled signal of then inciting somebody to action is thereafter delivered to the infrared emission circuit, turns back to original state then.
Fig. 9 is that the typical case of the utility model scheme uses
The utility model scheme and cable digital TV set-top box combine, and make everybody can see the program of Digital Television in parlor and room, and any the local remote control set-top box that can stay at home.
The video/audio signal that CATV set-top-box demodulates is sent to AV distributer, is divided into three the tunnel, the one tunnel and receives the televisor in parlor, and two-way is received the televisor in room one and room two respectively in addition.
Before the use, earlier with the telepilot of the integrated slave in the slave in room one and room two and main frame to sign indicating number, main frame is stored both ID.
The infrared receiving window mouth of the telepilot of one usefulness set-top box aligning slave is pressed in the room, can make slave launch the radiowave of " ID+ remote control code ".Two what use is two emission telepilots that slave and telepilot are integrated together in the room, both can launch infrared remote-controlled signal, also can launch the radiowave of " ID+ remote control code ", use more flexible, and more power saving.
Main frame receives the signal that room one or room two are sent, and radiowave can be reduced into infrared remote-controlled signal and come the controller top box.If the signal that the slave in the neighbour's is launched is not then stored corresponding ID because of main frame, thus can not send infrared remote-controlled signal, thus the distinguish of closing on can be come, make it not disturb mutually.
This programme can be used on the multiple occasion that needs to extend the infrared control distance.
Core of the present utility model is by insert ID identification code and complete forwarding infrared remote-controlled signal before infrared remote-controlled signal, guarantee not disturb mutually when the multi-user uses, at utmost improve the compatibility of remote signal, in addition slave and telepilot are integrated, but slave and telepilot shared microcontroller and power supply, reduction user's that can maximum possible installation difficulty improves and uses dirigibility.Therefore, every employing is inserted the ID identification code also by the complete forwarding infrared remote-controlled signal of wireless mode before infrared remote-controlled signal, or radio transmitter and telepilot are integrated together, and all belongs to protection domain of the present utility model.
Claims (2)
1. device that extends the infrared remote-controlled signal transmission range by radiowave, comprise main frame and slave, it is characterized in that: slave comprises power supply (1), infrared receiving circuit (2), slave single-chip microcomputer (3), rf modulation circuit (4), emitting antenna (5); The output of infrared receiving circuit (2) is connected with single-chip microcomputer (3), and the output terminal of slave single-chip microcomputer (3) is connected with rf modulation circuit (4), and the output of rf modulation circuit is connected to emitting antenna (5); Main frame comprises power supply (6), receiving antenna (7), radio demodulating circuit (8), host SCM (9), infrared emission circuit (10); The receiving antenna of main frame (7) is connected with the input end of radio demodulating circuit (8), and the output terminal of radio demodulating circuit (8) is connected with host SCM (9), and host SCM (9) is connected with the infrared emission circuit; Slave single-chip microcomputer (3) is connected respectively with to the sign indicating number button with host SCM (9).
2. the device that extends the infrared remote-controlled signal transmission range by radiowave according to claim 1, it is characterized in that: slave and Infrared remote controller are integrated together, at this moment slave and Infrared remote controller common source (1), infrared receiving circuit (2) and single-chip microcomputer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200874148U CN201111721Y (en) | 2007-09-30 | 2007-09-30 | Device for extending infrared remote-controlling signal transmission distance by radio wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200874148U CN201111721Y (en) | 2007-09-30 | 2007-09-30 | Device for extending infrared remote-controlling signal transmission distance by radio wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201111721Y true CN201111721Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200874148U Expired - Fee Related CN201111721Y (en) | 2007-09-30 | 2007-09-30 | Device for extending infrared remote-controlling signal transmission distance by radio wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201111721Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799971A (en) * | 2010-03-26 | 2010-08-11 | 青岛海信电器股份有限公司 | Remote control method and remote control system |
| CN102306448A (en) * | 2011-09-08 | 2012-01-04 | 深圳创维数字技术股份有限公司 | Infrared remote controlling signal transmission method and system, infrared receiving apparatus, and infrared transmitting apparatus |
| CN102446404A (en) * | 2010-10-12 | 2012-05-09 | 正文科技股份有限公司 | Short-range wireless signal extension device receiver and transmitter, and method thereof |
-
2007
- 2007-09-30 CN CNU2007200874148U patent/CN201111721Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799971A (en) * | 2010-03-26 | 2010-08-11 | 青岛海信电器股份有限公司 | Remote control method and remote control system |
| CN102446404A (en) * | 2010-10-12 | 2012-05-09 | 正文科技股份有限公司 | Short-range wireless signal extension device receiver and transmitter, and method thereof |
| CN102306448A (en) * | 2011-09-08 | 2012-01-04 | 深圳创维数字技术股份有限公司 | Infrared remote controlling signal transmission method and system, infrared receiving apparatus, and infrared transmitting apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |