CN102843188A - Infrared transmission method applied to various carrier frequencies - Google Patents
Infrared transmission method applied to various carrier frequencies Download PDFInfo
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- CN102843188A CN102843188A CN2012102809717A CN201210280971A CN102843188A CN 102843188 A CN102843188 A CN 102843188A CN 2012102809717 A CN2012102809717 A CN 2012102809717A CN 201210280971 A CN201210280971 A CN 201210280971A CN 102843188 A CN102843188 A CN 102843188A
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Abstract
The invention relates to the electronic technical field, in particular to an infrared transmission method applied to various carrier frequencies, aiming at solving the technical problems that the existing wireless high definition transmission equipment is large in infrared transparent transmission limit and cannot be applied to infrared signal transmission of wireless high definition modules of various carrier frequencies, and the like. The infrared transmission method comprises the following steps of: a) receiving infrared data through an infrared receiving header; b) using a singlechip to acquire the infrared data and removing the carrier information in the infrared data, and measuring the carrier frequency at the same time; c) loading the carrier data at an infrared data header according to the corresponding relationship between the carrier frequency and the carrier data; d) transmitting the infrared data processed in the step c to a transmitting device end, separating the carrier data of the infrared data header by the transmitting device, and calculating the carrier frequency of the infrared data according to the corresponding relationship of the carrier frequency and the carrier data in the step c; and e) transmitting the infrared data to a terminal device in the carrier frequency calculated in the step d.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of method that is applied to various carrier frequency WirelessHD module infrared signal transmission.
Background technology
WirelessHD transmission equipment in the market uses infrared signal to carry out transfer of data in a large number; But the WirelessHD transmission equipment that this type uses infrared signal to carry out transfer of data can only carry out the infrared transparent transmission to a certain fixing infrared carrier frequency (like 38kHz) usually; Can't adapt to the infrared transparent transmission of various different carrier frequencies (like 56kHz etc.); Even use the infrared receiving terminal of wideband; But transmitting terminal does not still possess the function of carrying out the data transmission according to the carrier wave efficient of infrared signal, so causes the infrared transparent transmission to receive great limitation, can not be adapted to the WirelessHD module infrared signal transmission of various carrier frequencies.Existing solution is for setting up corresponding WirelessHD transmission equipment according to different infrared carrier frequencies, but has so again that cost is high, operating cost is high and safeguard problems such as complicacy.
Summary of the invention
The technical problems such as WirelessHD module infrared signal transmission that the infrared transparent transmission limitation that the present invention is intended to solve existing WirelessHD transmission equipment is big, can not be adapted to various carrier frequencies have the WirelessHD module infrared signal transmission that can be adapted to various carrier frequencies to provide, cost is low and a kind of Infrared Transmission method that is applicable to various carrier frequencies of easy advantage such as reliable.
The objective of the invention is to realize through following technical scheme.
A kind of Infrared Transmission method that is applicable to various carrier frequencies of the present invention comprises the steps: a) to receive infrared data through infrared receiving terminal; B) the use single-chip microcomputer is gathered the above-mentioned infrared data that receives and is removed carrier information wherein, measures its carrier frequency simultaneously; C) the infrared data head after handling through step b) loads carrier data according to the corresponding relation of carrier frequency and carrier data; D) will after step c) is handled, be sent to the transmitter end by infrared data, isolate the carrier data of infrared data head, and calculate the carrier frequency of this infrared data according to the corresponding relation of carrier frequency in the step c) and carrier data by transmitter; E) carrier frequency to calculate through step d) is sent infrared data to terminal equipment.
A kind of Infrared Transmission method that is applicable to various carrier frequencies of the present invention; The corresponding relation of carrier frequency and carrier data is following in the wherein said step c), the corresponding carrier data 200us of carrier frequency 30kHz, the corresponding carrier data 250us of carrier frequency 33kHz; The corresponding carrier data 300us of carrier frequency 36kHz; The corresponding carrier data 350us of carrier frequency 38kHz, the corresponding carrier data 400us of carrier frequency 40kHz, the corresponding carrier data 450us of carrier frequency 56kHz.
A kind of Infrared Transmission method that is applicable to various carrier frequencies of the present invention, it is 30kHz～60kHz that the infrared receiving terminal in the wherein said step a) receives operating frequency.
A kind of beneficial effect that is applicable to the Infrared Transmission method of various carrier frequencies of the present invention:
1. can be adapted to the WirelessHD module infrared signal transmission of various carrier frequencies;
2. cost is low;
3. easy to be reliable.
Description of drawings
Fig. 1 Infrared Transmission systematic schematic diagram of the present invention
Embodiment
Detailed structure of the present invention, application principle, effect and effect with reference to accompanying drawing 1, are explained through following execution mode.
A kind of Infrared Transmission method that is applicable to various carrier frequencies of the present invention comprises the steps:
A) be the infrared data of the infrared receiving terminal reception of 30kHz～60kHz through operating frequency by the emission of infrared equipments such as IR remote controller;
B) the use single-chip microcomputer is gathered the above-mentioned infrared data that receives and is removed carrier information wherein, measures its carrier frequency simultaneously;
C) the infrared data head after handling through step b) loads carrier data according to the corresponding relation of carrier frequency and carrier data; The corresponding relation of carrier frequency and carrier data is following, the corresponding carrier data 200us of carrier frequency 30kHz, the corresponding carrier data 250us of carrier frequency 33kHz; The corresponding carrier data 300us of carrier frequency 36kHz; The corresponding carrier data 350us of carrier frequency 38kHz, the corresponding carrier data 400us of carrier frequency 40kHz, the corresponding carrier data 450us of carrier frequency 56kHz.；
D) will after step c) is handled, be sent to the transmitter end by infrared data, isolate the carrier data of infrared data head, and calculate the carrier frequency of this infrared data according to the corresponding relation of carrier frequency in the step c) and carrier data by transmitter;
E) carrier frequency to calculate through step d), with infrared data to sending like terminal equipments such as blue light players.
Because infrared use is the pulse position modulation mode, representes digital " 0 " and numeral " 1 " with certain subcarrier time respectively, therefore can copy this kind mode, increase by one section carrier data every group of infrared data head or tail and represent carrier frequency.Receiving equipment is transferred to transmitter to this infrared data, and the frequency of this infrared data of transmitter analysis partly obtains infrared carrier frequency, and removes the frequency part to obtain complete infrared data, then with carrier frequency corresponding emission infrared data.
In sum, a kind of Infrared Transmission method that is applicable to various carrier frequencies of the present invention have the WirelessHD module infrared signal transmission that can be adapted to various carrier frequencies, cost is low and easy plurality of advantages such as reliable.
Claims (3)
1. an Infrared Transmission method that is applicable to various carrier frequencies is characterized in that comprising the steps: a) receiving infrared data through infrared receiving terminal; B) the use single-chip microcomputer is gathered the above-mentioned infrared data that receives and is removed carrier information wherein, measures its carrier frequency simultaneously; C) the infrared data head after handling through step b) loads carrier data according to the corresponding relation of carrier frequency and carrier data; D) will after step c) is handled, be sent to the transmitter end by infrared data, isolate the carrier data of infrared data head, and calculate the carrier frequency of this infrared data according to the corresponding relation of carrier frequency in the step c) and carrier data by transmitter; E) carrier frequency to calculate through step d) is sent infrared data to terminal equipment.
2. a kind of Infrared Transmission method that is applicable to various carrier frequencies according to claim 1; It is characterized in that: the corresponding relation of carrier frequency and carrier data is following in the said step c); The corresponding carrier data 200us of carrier frequency 30kHz; The corresponding carrier data 250us of carrier frequency 33kHz, the corresponding carrier data 300us of carrier frequency 36kHz, the corresponding carrier data 350us of carrier frequency 38kHz; The corresponding carrier data 400us of carrier frequency 40kHz, the corresponding carrier data 450us of carrier frequency 56kHz.
3. a kind of Infrared Transmission method that is applicable to various carrier frequencies according to claim 1 is characterized in that: it is 30kHz～60kHz that the infrared receiving terminal in the said step a) receives operating frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102809717A CN102843188A (en) | 2012-08-09 | 2012-08-09 | Infrared transmission method applied to various carrier frequencies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102809717A CN102843188A (en) | 2012-08-09 | 2012-08-09 | Infrared transmission method applied to various carrier frequencies |
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| CN102843188A true CN102843188A (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102809717A Pending CN102843188A (en) | 2012-08-09 | 2012-08-09 | Infrared transmission method applied to various carrier frequencies |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897883A (en) * | 1987-12-18 | 1990-01-30 | Modcom Corporation | Infrared remote control apparatus |
| US5142397A (en) * | 1990-01-04 | 1992-08-25 | Dockery Devan T | System for extending the effective operational range of an infrared remote control system |
| CN1507612A (en) * | 2001-05-10 | 2004-06-23 | ��ķɭ��ɹ�˾ | Economical extension of the operatnig distance of an RF remote link accommodating information signals having differing carrier frequencies |
| CN1507611A (en) * | 2001-05-10 | 2004-06-23 | 汤姆森许可公司 | Economical extension of the operating distance of an RF remote link accommodating IR remote controls having differing IR carrier frequencies |
| US20080180271A1 (en) * | 2007-01-25 | 2008-07-31 | Smk Corporation | Rf communication system |
-
2012
- 2012-08-09 CN CN2012102809717A patent/CN102843188A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897883A (en) * | 1987-12-18 | 1990-01-30 | Modcom Corporation | Infrared remote control apparatus |
| US5142397A (en) * | 1990-01-04 | 1992-08-25 | Dockery Devan T | System for extending the effective operational range of an infrared remote control system |
| CN1507612A (en) * | 2001-05-10 | 2004-06-23 | ��ķɭ��ɹ�˾ | Economical extension of the operatnig distance of an RF remote link accommodating information signals having differing carrier frequencies |
| CN1507611A (en) * | 2001-05-10 | 2004-06-23 | 汤姆森许可公司 | Economical extension of the operating distance of an RF remote link accommodating IR remote controls having differing IR carrier frequencies |
| US20080180271A1 (en) * | 2007-01-25 | 2008-07-31 | Smk Corporation | Rf communication system |
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Application publication date: 20121226 |