CN103607623A - Long-distance infrared remote control method and system of set top box - Google Patents
Long-distance infrared remote control method and system of set top box Download PDFInfo
- Publication number
- CN103607623A CN103607623A CN201310598249.2A CN201310598249A CN103607623A CN 103607623 A CN103607623 A CN 103607623A CN 201310598249 A CN201310598249 A CN 201310598249A CN 103607623 A CN103607623 A CN 103607623A
- Authority
- CN
- China
- Prior art keywords
- top box
- set top
- long
- infrared
- code value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention provides a long-distance infrared remote control method and system of a set top box, wherein the long-distance infrared remote control method and system are applicable to intelligent household electrical appliances. The long-distance infrared remote control method comprises the following steps: receiving an infrared signal, converting the infrared signal into a binary code value, modulating the binary code value into carrier data with the preset frequency, transmitting the carrier data through a signal line, receiving the carrier data, restoring the carrier data into the binary code value, and carrying out corresponding operations according to the binary code value. The infrared signal is transmitted through a wired mode, and the carrier data are transmitted through the preset frequency and can be prevented from being the same as an audio-video modulator in frequency and affecting the audio-video transmission quality. The long-distance remote control method is not influenced by the number of walls between a remote control and the set top box, and the problem of adjacent channel interference produced between open type wireless radio frequency signals is solved.
Description
Technical field
The invention belongs to field of set-top, relate in particular to the long-distance infrared remote-controlled method and system of a kind of Set Top Box.
Background technology
At present, in infrared remote control stretcher, be at near-end mostly, with an infrared remote control Receiver, the signal of the 38kHz that remote controller is sent is first demodulated into binary data, then by binary Data Modulation on radiofrequency signal, by wireless signal transmission outside room.(the Set Top Box of Set Top Box a long way off, STB) be frontly placed with a wireless receiving and connect, receive after wireless signal, first be demodulated into binary signal, the carrier wave that binary signal is modulated to 38kHz again gets on, and the infrared receiving terminal that is transmitted to Set Top Box by a light-emitting diode receives.
As shown in Figure 1, there are two or above television set in most of families the inside, puts parlor for one, puts bedroom for one.At this moment, if buy two Set Top Box, can compare waste of money, and hand over two parts of CATV fees.General solution is, Set Top Box is placed in parlor, television set in parlor comes the signal of receiving set up box to see TV by A/V line, television set in bedroom is modulated into audio-video signal after analog signal by the modulator in Set Top Box, is sent to another room goes to receive to television set by coaxial cable.
Because parlor and bedroom may be at floors, or at a distance of distant, or angle is not right, makes the Set Top Box of user in cannot remote control parlor in bedroom carry out zapping or by straighforward operations such as set-top box standbies.
Current solution is as shown in Figure 2, to fill a wireless transmitter module in bedroom, for the infrared signal of the 38KHz of remote controller transmitting is first received, be converted into binary data, then this binary data be modulated in radiofrequency signal, by wireless method, send.In parlor, there is a wireless receiving module, for the radiofrequency signal of wireless transmitter module is demodulated to binary signal, the carrier wave that is modulated to again 38kHz gets on and sends by infrarede emitting diode, to the IR(infrared interface in Set Top Box) receive, from face, reach the object of remote control set-box in bedroom.
Use said method, because radio frequency signal is gone out to the spatial emission of opening, easily to using the equipment of same frequency to produce adjacent frequency, disturb.If the resident family in next door has gone out to use identical Set Top Box, and use above identical long-distance infrared remote-controlled device, can miss remote control to the Set Top Box of others' family.If the wall at interval is many in parlor and bedroom, can make wireless signal decay, occur remote control less than situation.Human body closely under radiofrequency signal, may have the consequence that causes that some are bad for a long time.
Summary of the invention
The object of the present invention is to provide a kind of long-distance infrared remote-controlled method of glitch-free Set Top Box, be intended to solve and utilize wireless signal to carry out the problem that Remote can produce adjacent frequency interference, signal attenuation.
The long-distance infrared remote-controlled method of Set Top Box, comprises the following steps:
Receive infrared signal, convert described infrared signal to binary system code value;
Described binary system code value is modulated to the carrier data of predeterminated frequency and transmits with holding wire;
The described carrier data that receives and reduce becomes described binary system code value, and carries out corresponding actions according to described binary system code value.
An embodiment therein, described predeterminated frequency is the mutually non-interfering frequency of frequency with audio signal, vision signal.
An embodiment therein, described predeterminated frequency is 7.2Mhz.
An embodiment therein, described holding wire is coaxial cable.
An embodiment therein, described execution corresponding actions comprises startup, standby, closes, transmits corresponding audio-video signal.
In addition, also provide a kind of Set Top Box long-distance infrared remote-controlled system, having comprised:
Infrared receiving terminal, for receiving infrared signal, converts described infrared signal to binary system code value;
Infrared signal modulator, is connected with described infrared receiving terminal, for the carrier data that described binary system code value is modulated to predeterminated frequency, with holding wire, transmits;
Infrared signal demodulator, is arranged at Set Top Box, is connected with holding wire with infrared signal modulator, for receiving and reduce described carrier data, becomes described binary system code value;
Processing module, is arranged at Set Top Box, for carrying out corresponding actions according to described binary system code value.
An embodiment therein, described predeterminated frequency is the mutually non-interfering frequency of frequency with audio signal, vision signal.
An embodiment therein, described predeterminated frequency is 7.2Mhz.
An embodiment therein, described holding wire is coaxial cable.
An embodiment therein, described infrared receiving terminal and infrared signal modulator are with described coaxial cable or Power-over-Ethernet.
The long-distance infrared remote-controlled method of above-mentioned Set Top Box comes mode to transmit infrared signal with wired, and the carrier wave data transmission of the predeterminated frequency that uses, can avoid identical with the frequency of audio frequency and video modulator, so that have influence on the quality of audio video transmission, the institute that this Remote mode is not subject to remote controller and Set Top Box every the number affects of wall, solved the generation adjacent frequency interference problem between opening radio frequency signal, solve human body for a long time closely under radio frequency signal simultaneously, may have the problem that causes health to suffer damage.
Accompanying drawing explanation
Fig. 1 is traditional Set Top Box tele-control system module diagram;
Fig. 2 is traditional Set Top Box long distance wireless rf control system module diagram;
Fig. 3 is the flow chart of the long-distance infrared remote-controlled method of Set Top Box that provides of an embodiment of the present invention;
Fig. 4 is the module diagram of the long-distance infrared remote-controlled system of Set Top Box that provides of an embodiment of the present invention.
Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 3, show the long-distance infrared remote-controlled method flowchart of Set Top Box, in conjunction with the module map of the long-distance infrared remote-controlled system of Set Top Box---Fig. 4 carries out following explanation, and the step of this method comprises:
Step S110, receives infrared signal, converts described infrared signal to binary system code value.In certain embodiments, the infrared receiving terminal 102 that relatively Set Top Box is arranged on far-end receives the infrared signal of the 38kHz that remote controllers send and converts thereof into binary system code value.
Step S120, is modulated to described binary system code value the carrier data of predeterminated frequency and transmits with holding wire.In certain embodiments, the infrared signal modulator 104 being connected with infrared receiving terminal 102 in far-end setting, the binary system code value that infrared receiving terminal 102 is demodulated is modulated in the carrier data of predeterminated frequency, predeterminated frequency is and the frequency of the frequency non-interference of audio signal, vision signal, is beneficial to grow Distance Transmission at holding wire.Preferred embodiment, the frequency of the carrier data of predeterminated frequency is 7.2Mhz.In other embodiments, the frequency of the carrier data of predeterminated frequency can also be 5.4Mhz, 6.3Mhz etc.
Step S130, the described carrier data that receives and reduce becomes described binary system code value, and carries out corresponding actions according to described binary system code value.In certain embodiments, infrared signal demodulator 202 in Set Top Box receives the carrier data of its transmission by audio frequency and video modulator 204, holding wire from infrared signal modulator 104, after this, infrared signal demodulator 202 is reduced into binary system code value by carrier data, the master chip of supplying machine top box (processing module 206) is processed, thereby reaches the object at remotely controlling set-top box.
Preferred embodiment, the holding wire of above-mentioned transmission carrier data is coaxial cable; In other embodiments, holding wire can also be netting twine etc.
In addition, the main body of carrying out corresponding actions according to described binary system code value is that the performed corresponding actions of master chip should comprise Set Top Box startup, standby, close, transmits corresponding audio-video signal (zapping), or can also be online, switching webpage etc.And above-mentioned audio frequency and video modulator 204 is under controlling according to above-mentioned binary system code value at master chip, corresponding audio and video frequency signal is mixed, by holding wire, be transferred to the television set 2 in another room.
In addition, with reference to figure 4, also provide a kind of Set Top Box long-distance infrared remote-controlled system, this system is set up based on a Set Top Box, one or more television set and remote controller.In certain embodiments, this system comprise be positioned over the Set Top Box in room 1, the 2(room, room 2 that is positioned over non-Set Top Box place refers to: exceed Set Top Box and directly receive the space of effective infrared signal) one or more infrared receiving terminals 102 and infrared signal modulator 104, mutual communication is connected infrared receiving terminal 102 with infrared signal modulator 104.But, it should be noted that this system can also be for same larger Zhong，Ru dining room, space, meeting room, museum etc.
Set Top Box comprises audio frequency and video modulator 204, the infrared signal demodulator 202 being connected with audio frequency and video modulator 204, the processing module 206(master chip being connected with infrared signal demodulator 202 with audio frequency and video modulator 204).
In certain embodiments, infrared signal demodulator 202 in Set Top Box receives the carrier data of its transmission by audio frequency and video modulator 204, holding wire from infrared signal modulator 104, after this, infrared signal demodulator 202 is reduced into binary system code value by carrier data, and the processing module 206 of supplying machine top box is processed.
Preferred embodiment, the holding wire of above-mentioned transmission carrier data is coaxial cable; And, infrared receiving terminal 102 and infrared signal modulator 104 are that Set Top Box is with coaxial cable power supply, be that power supply (for example 12V) that infrared signal modulator 104 will be used is that this side of the audio frequency and video modulator 204 Set Top Box provides, Set Top Box can remote control system the power supply of power supply whether export, control infrared signal modulator 104 and whether work, whether can remote control thereby control the remote controller in 2 li, the room at non-Set Top Box place.In other embodiments, holding wire can also be netting twine etc.
In addition, the main body of carrying out corresponding actions according to described binary system code value is that the performed corresponding actions of master chip should comprise Set Top Box startup, standby, close, transmits corresponding audio-video signal (zapping), or can also be online, switching webpage etc.And above-mentioned audio frequency and video modulator 204 is under controlling according to above-mentioned binary system code value at master chip, corresponding audio and video frequency signal is mixed, by holding wire, be transferred to the television set 2 in another room.
The present invention utilizes transportation simulator audio-video signal, and to room, 2 coaxial cable transmits infrared remote-controlled signal to Set Top Box.Before the input end of analog signal of the television set 2 in room 2, install an infrared receiving terminal 102 and infrared signal modulator 104 additional, in room during 2 li of remote controllers of pressing Set Top Box, infrared receiving terminal 102 is first converted to binary system code value by the infrared signal of 38kHz with infrared signal modulator 104, then the carrier data that is modulated to 7.2MHz through infrared signal modulator 104 gets on, along coaxial cable one tunnel, pass the audio frequency and video modulator 204 of coming Set Top Box back, the pin of the audio frequency and video modulator 204 of process Set Top Box is passed to the infrared demodulator circuit (infrared signal demodulator 202) on mainboard, infrared demodulator circuit by binary system code value from the carrier data of 7.2MHz after demodulation out, directly giving master chip processes, thereby reach the object of remote control set-box in bedroom.
The long-distance infrared remote-controlled method and system of above-mentioned Set Top Box transmits infrared signal with coaxial cable or netting twine, and the frequency of the infrared modulator using is different from the frequency of audio frequency and video modulator 204, can not have influence on the quality of audio video transmission; And coaxial cable or netting twine band function of shielding, the quality of transmission is good, the distance of transmission.The power supply of infrared signal modulator 104 can be controlled by set box remote control, thereby can select the people in room 2 whether can carry out remote control to Set Top Box.Have to be again exactly, the institute that this infrared remote remote control mode is not subject to remote controller and Set Top Box every the number affects of wall; Solve the adjacent frequency interference problem between opening radio frequency signal.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the long-distance infrared remote-controlled method of Set Top Box, is characterized in that, comprises the following steps:
Receive infrared signal, convert described infrared signal to binary system code value;
Described binary system code value is modulated to the carrier data of predeterminated frequency and transmits with holding wire;
The described carrier data that receives and reduce becomes described binary system code value, and carries out corresponding actions according to described binary system code value.
2. the long-distance infrared remote-controlled method of Set Top Box as claimed in claim 1, is characterized in that, described predeterminated frequency is the mutually non-interfering frequency of frequency with audio signal, vision signal.
3. the long-distance infrared remote-controlled method of Set Top Box as claimed in claim 1 or 2, is characterized in that, described predeterminated frequency is 7.2Mhz.
4. the long-distance infrared remote-controlled method of Set Top Box as claimed in claim 1 or 2, is characterized in that, described holding wire is coaxial cable.
5. the long-distance infrared remote-controlled method of Set Top Box as claimed in claim 1 or 2, is characterized in that, described execution corresponding actions comprises startup, standby, closes, transmits corresponding audio-video signal.
6. the long-distance infrared remote-controlled system of Set Top Box, is characterized in that, comprising:
Infrared receiving terminal, for receiving infrared signal, converts described infrared signal to binary system code value;
Infrared signal modulator, is connected with described infrared receiving terminal, for the carrier data that described binary system code value is modulated to predeterminated frequency, with holding wire, transmits;
Infrared signal demodulator, is arranged at Set Top Box, is connected with holding wire with infrared signal modulator, for receiving and reduce described carrier data, becomes described binary system code value;
Processing module, is arranged at Set Top Box, for carrying out corresponding actions according to described binary system code value.
7. the long-distance infrared remote-controlled system of Set Top Box as claimed in claim 6, is characterized in that, described predeterminated frequency is the mutually non-interfering frequency of frequency with audio signal, vision signal.
8. the long-distance infrared remote-controlled system of the Set Top Box as described in claim 6 or 7, is characterized in that, described predeterminated frequency is 7.2Mhz.
9. the long-distance infrared remote-controlled system of the Set Top Box as described in claim 6 or 7, is characterized in that, described holding wire is coaxial cable.
10. the long-distance infrared remote-controlled system of Set Top Box as claimed in claim 7, is characterized in that, described infrared receiving terminal and infrared signal modulator are with described coaxial cable power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598249.2A CN103607623A (en) | 2013-11-22 | 2013-11-22 | Long-distance infrared remote control method and system of set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598249.2A CN103607623A (en) | 2013-11-22 | 2013-11-22 | Long-distance infrared remote control method and system of set top box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103607623A true CN103607623A (en) | 2014-02-26 |
Family
ID=50125820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310598249.2A Pending CN103607623A (en) | 2013-11-22 | 2013-11-22 | Long-distance infrared remote control method and system of set top box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103607623A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911695A (en) * | 2017-12-22 | 2018-04-13 | 深圳Tcl新技术有限公司 | Infrared remote control test method, information transformation device and computer-readable recording medium |
| CN113539280A (en) * | 2020-04-16 | 2021-10-22 | 华为技术有限公司 | Control signal sending method, control signal receiving method and related equipment |
-
2013
- 2013-11-22 CN CN201310598249.2A patent/CN103607623A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911695A (en) * | 2017-12-22 | 2018-04-13 | 深圳Tcl新技术有限公司 | Infrared remote control test method, information transformation device and computer-readable recording medium |
| CN113539280A (en) * | 2020-04-16 | 2021-10-22 | 华为技术有限公司 | Control signal sending method, control signal receiving method and related equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8316413B2 (en) | Apparatus for displaying electrical device usage information on a television receiver | |
| MX2012008882A (en) | A method of notifying a user of the status of an electrical appliance. | |
| CN103546832A (en) | Matching method and matching system for household appliance remote control | |
| CN106647659A (en) | Intelligent terminal based method and system for controlling household appliances remotely | |
| CN102098566A (en) | Home appliance control system | |
| CN102244595A (en) | Communication method and communication apparatus of household electrical appliance and household electrical appliance | |
| CN103763607A (en) | Television signal sharing method and device | |
| CN104378673B (en) | A method of prevent remote controler and the signal of infrared forwarding equipment from interfering with each other | |
| CN103607623A (en) | Long-distance infrared remote control method and system of set top box | |
| CN201750483U (en) | Household appliances control system | |
| CN201048428Y (en) | Two-way control circuit and set up box equipped with the circuit | |
| CN204334852U (en) | A kind of broadcast HDTV (High-Definition Television) access device based on USB transmission of video | |
| TW201415424A (en) | Remote control system and power supply connector remote control device | |
| CN201514697U (en) | Remote control circuit and television | |
| US20100315209A1 (en) | Systems And Apparatus For Transmitting Remote Control Commands Over A Communication Network | |
| CN211908840U (en) | Internet of things gateway device based on set top box | |
| CN201149724Y (en) | Telecontrol system for electric apparatus | |
| CN103885413B (en) | Household appliance management method, system and device | |
| CN202406244U (en) | Digital television system | |
| CN204904076U (en) | Super intelligent network control broadcast box | |
| CN204069224U (en) | A kind of indoor multi-media based on DTMB shares cladding system | |
| CN103680116B (en) | Remote control signal switching device | |
| CN204069015U (en) | A kind of home intelligent entertainment control system | |
| CN205375798U (en) | But remote interaction's multipurpose intelligence interaction system | |
| CN210518653U (en) | Intelligent set top box with infrared remote control household electrical appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140226 |