CN103745590B - A kind of infrared remote coding method - Google Patents
A kind of infrared remote coding method Download PDFInfo
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- CN103745590B CN103745590B CN201410009369.9A CN201410009369A CN103745590B CN 103745590 B CN103745590 B CN 103745590B CN 201410009369 A CN201410009369 A CN 201410009369A CN 103745590 B CN103745590 B CN 103745590B
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Abstract
The invention discloses a kind of infrared remote coding method, comprise the following steps: (1) analyzes the configuration file of existing infrared remote coding agreement, relevant database constructs protocol attribute table, constructs protocol frame table, construct agreement segment table；(2) the protocol attribute table in incidence relation type data base, protocol frame table and agreement segment table；(3) remote controller key sends characteristic signal；(4) controlled device receives characteristic signal and sends feedback signal；(5) coding unit receives feedback signal and judges the infrared remote coding agreement belonging to controlled device according to feedback signal；(6) coding unit in remote controller receives the command code that remote controller key sends, and according to data configuration configuration file corresponding in affiliated infrared remote coding agreement invocation protocol attribute list, protocol frame table and agreement segment table, then according to configuration file encodes.The present invention can compatible existing different infrared remote coding agreements.
Description
Technical field
The present invention relates to a kind of coded method, be specifically related to a kind of infrared remote coding method.
Background technology
Infra-red remote control is currently used widest a kind of communication and remote control means.Owing to infrared remote controller has
The features such as volume is little, low in energy consumption, function strong, low cost, thus, after colour TV, videocorder, at recorder, stereo set, sky
Wither and use infra-red remote control the most one after another on other compact electric apparatus device such as machine and toy.In industrial equipment, high pressure, radiation,
Under the environment such as toxic gas, dust, use infra-red remote control not only the most reliable but also electrical Interference can be effectively isolated.
There is an i.e. communication rule of communications protocol in the communication between IR remote controller and controlled device, the most unidirectional
Communications protocol.This unidirectional communications protocol is referred to as infrared remote coding agreement.Infrared remote coding agreement is typically all producer
Self-defining, such as NEC, there is the infrared coding agreement of self-defining in the company such as SONY, TOSHIBA, PHILIPS.Any electricity
Device exploitation and manufacturer also can define the infrared coding agreement of oneself.
The waveform basic feature of infrared remote coding agreement is: the waveform of a string low and high level composition.For remote controller,
If high level makes infrared transmitting tube turn on, then high level makes infrared transmitting tube send infrared light, at electrical equipment receiving terminal
Just can receive infrared light.Between low period, infrared transmitting tube is not turned on, and infrared transmitting tube stops sending infrared light, at electrical equipment
Receiving terminal does not just receive infrared light.
Infrared coding agreement in early days has without carrier wave.Due to environment mid-infrared light signal everywhere, so, in nothing
When carrier remote control device is launched, often mix some interference signals so that electrical equipment reaction is insensitive, so, carrierfree coding one
As the shortest in order to avoid interference, but, extraneous infrared light interference also can make electrical equipment misoperation.Thus, no-load
Ripple coding is day by day eliminated.Infrared coding with carrier wave is accomplished by electrical equipment receiving terminal with band filter.There is this band logical
Wave filter, the most thoroughly avoids the shortcoming being easily disturbed of carrierfree coding.
The coded system of infrared coding agreement typically has 2 kinds, and one is pulse width modulation mode (PWM), and another kind is pulse-phase
Modulation system (PPM).The definition logical bit of pulse width modulation mode (PWM) is :+one section of low level of a string carrier wave, with low level
Width difference is as the difference distinguishing logical bit.The definition logical bit of pulse-phase modulation mode (PPM) is: a string carrier wave and one section low
Before and after level, order is different distinguishes different logical bit, if+one section of low level of a string carrier wave is logical zero, one section of low level+
A string carrier wave is logic 1.
Common logical bit only has 2 logical bit.Each logical bit is made up of a carrier wave string and a low level.Derivative
Logical bit have: a string carrier wave or one section of low level are exactly logical bit, or, multiple carrier wave strings and low level form one and patrol
Collect position.The quantity of logical bit is not 2, has 3,4 ..., 16, the most.
One complete infrared coding agreement, often has basic waveform string (we term it basic frame Frame), repeating frame
And end frame.Some infrared coding agreements only have basic frame, do not have repeating frame and end frame；Most of infrared coding agreements have base
This frame and repeating frame.Such as NEC6122 coding protocol, a frame of 9ms carrier wave string+4.5ms low level beginning is basic frame, basic frame
Regular length is 108ms, and 9ms carrier wave string+2.25ms beginning below is exactly repeating frame.
Owing to infrared remote coding agreement is typically all producer's self-defining, therefore red between the equipment of different manufacturers
Outer remote control coding agreement is the most incompatible, and the infrared remote coding agreement between the distinct device of same producer is likely to the most not
Identical.
For compatible different types of infrared remote coding agreement, it is common practice to existing infrared protocol is collected also
Storage, then carries out adaptive one by one by the mode classification such as manufacturer, model.At present, there is not yet a kind of infrared remote coding side
Method can compatible existing different infrared remote coding agreements.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of infrared remote coding method,
Can compatible existing different infrared remote coding agreements.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of infrared remote coding method, comprises the following steps:
(1) analyze the configuration file of existing infrared remote coding agreement, extract the protocol name in configuration file, carrier wave
Frequency/modulating frequency, dutycycle, logical bit, big small end, type of coding and number of repetition construct agreement in relevant database
Attribute list, extracts the frame title in configuration file, frame pattern, frame reference, frame regular length and frame and fixes duration at relationship type number
According to storehouse constructs protocol frame table, extract the name section in configuration file, segment type, section time series waveform, the bit length of section, section
The code value of bit pattern, section reference and section in relevant database, construct agreement segment table；
(2) the protocol attribute table in incidence relation type data base, protocol frame table and agreement segment table；
(3) remote controller key sends characteristic signal；
(4) controlled device receives characteristic signal and sends feedback signal；
(5) coding unit receives feedback signal and judges the infrared remote coding association belonging to controlled device according to feedback signal
View；
(6) coding unit in remote controller receives the command code that remote controller key sends, and according to affiliated infrared remote control
Corresponding data configuration configuration file in coding protocol invocation protocol attribute list, protocol frame table and agreement segment table, then according to join
Put file to encode.
Described existing infrared remote coding agreement includes NEC agreement, RC-5/6 agreement and SONY SIRC agreement.
Beneficial effects of the present invention: the present invention, by analyzing the configuration file of existing infrared remote coding agreement, constructs
Be mutually related protocol attribute table, protocol frame table and agreement segment table, and coding unit is compiled according to the infrared remote control belonging to controlled device
Corresponding data configuration configuration file in code agreement invocation protocol attribute list, protocol frame table and agreement segment table, then according to configuration
File encodes, and described infrared remote coding method can compatible existing different infrared remote coding agreements.
Accompanying drawing explanation
Fig. 1 is the flow chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is further described.
As it is shown in figure 1, a kind of infrared remote coding method, comprise the following steps:
(1) configuration file of existing infrared remote coding agreement, the most existing infrared remote coding protocol package are analyzed
Include NEC agreement, RC-5/6 agreement and SONY SIRC agreement etc., extract the protocol name in configuration file, carrier frequency/modulation
Frequency, dutycycle, logical bit, big small end, type of coding and number of repetition construct protocol attribute table in relevant database, carry
Take the frame title in configuration file, frame pattern, frame reference, frame regular length and frame to fix duration and construct in relevant database
Protocol frame table, extract the name section in configuration file, segment type, section time series waveform, the bit length of section, the bit pattern of section,
The code value of section reference and section constructs agreement segment table in relevant database.
(2) the protocol attribute table in incidence relation type data base, protocol frame table and agreement segment table；The following institute of table after association
Show:
Protocol attribute table includes with properties:
A): protocol number, it is the major key of protocol attribute table and is integer；
B): protocol name, the common infrared remote control having company's self-definings such as NEC, SONY, TOSHIBA, PHILIPS is compiled
Code agreement；
C): carrier frequency/modulating frequency, for representing the carrier wave that infrared signal modulation is used when sending or receive decoding
Frequency, that most commonly seen is 38KHz；
D): dutycycle, the dutycycle of infrared signal carrier wave, it is simply that high level accounts for the ratio of one high and one low time, is usually
1/3,1/4；
E): logical bit, each logical bit is made up of a high level (carrier wave string) and a low level, common logical bit
Only 2, i.e. logical zero and logic 1；
F): big small end；Hold greatly pattern, refer to a high position for data, be saved in the low address of internal memory, and the low level of data,
It is saved in the high address of internal memory；Little endian mode, refers to that a high position for data is saved in the high address of internal memory, and the low level of data
It is saved in the low address of internal memory；The different definition of big small end, influences whether the order that infrared data is received and dispatched；
G): type of coding, including combination type and stand alone type；Such as due to air-conditioning equipment generally at an infrared remote coding
Bag contains all of control information, therefore its combination that infrared coding is all states of equipment sent, we term it
Combination type；And the infrared remote coding bag that other equipment send every time generally only comprises certain controlled state, we term it
Stand alone type；
H): number of repetition, such as some infrared remote coding agreement needs ability after identical data content repeated combination
Becoming an effective infrared remote coding packet, major part infrared protocol is then without repeating.
Protocol frame table includes with properties:
A): protocol number, for the external key of protocol attribute table；
B): frame sequence is numbered, the sequence number of this frame is represented and for integer；The set of properties of protocol number and frame sequence numbering is protocol frame
The major key of table；
C): frame title, for the ease of understanding and reading, the title taken to this frame；
D): frame pattern, represent that this frame is independent frame, repeating frame, radix-minus-one complement frame；
E): frame reference, if the frame pattern of this frame is independent frame, then this attribute is meaningless；If the frame pattern of this frame
It is repeating frame or radix-minus-one complement frame, then this attribute represents repetition or the reference frame sequence number negated；
F): frame regular length, represent whether this frame is fixing duration；
G): frame fixes duration, if frame regular length is effective, this attribute represents that frame fixes duration；If frame is fixing long
When spending invalid, this attribute is invalid.
Agreement segment table includes with properties:
A): protocol number, for the external key of protocol attribute table；
B): frame number, for the external key of protocol frame table；
C): section sequence is numbered, representing this section sequence number in protocol frame and for integer, protocol number, frame number and section sequence are compiled
Number the major key that set of properties is agreement segment table；
D): name section, for the ease of understanding and reading, the title taken to this section；
E): segment type, represent that this section is logically position, or according to time series waveform；
F): section time series waveform, if segment type is according to time series waveform, then this attribute represents this time series
The definition of waveform, data CSV；
G): the bit length of section, representing the length of this section, during segment type logically position, this attribute is just effective；
H): the bit pattern of section, represent that this section is independent segment, repeated segments, radix-minus-one complement section；
I): section reference, if the stage mode of this section is independent segment, then this attribute is meaningless, if the stage mode of this section
It is repeated segments or radix-minus-one complement section, then this attribute represents repetition or the reference field sequence number negated；
J): the code value of section, representing the value of this section, during segment type logically position, this attribute is just effective.
(3) remote controller key sends characteristic signal.
(4) controlled device receives characteristic signal and sends feedback signal.
(5) coding unit receives feedback signal and judges the infrared remote coding association belonging to controlled device according to feedback signal
View.
(6) coding unit in remote controller receives the command code that remote controller key sends, and according to affiliated infrared remote control
Corresponding data configuration configuration file in coding protocol invocation protocol attribute list, protocol frame table and agreement segment table, then according to join
Put file to encode.
Below as a example by modal NEC agreement, it is illustrated.
NEC agreement, is developed by NEC Corporation the earliest, and is widely used in various electrical equipment control, is characterized in: 8 bit address and
8 order of the bit, address and order all transmit 2 times, pulse interval modulation, 38kHz carrier frequency, each time be 1.12ms or
2.25ms, modulation uses length interpulse period to modulate each, and each pulse is the 38kHz carrier wave of 560us length
Pulse, dutycycle is about 21 cycles of 1/3().It is to be started by the pulse of 9ms that one common guidance command sends, and is followed by
4.5ms is idle, followed by address, order, and address and order all transmit 2 times, and secondary address and order are radix-minus-one complements, Ke Yiyong
Verifying the information received, total transmission time is fixing, because each has radix-minus-one complement transmission, an order only to send
Once, though the button on remote controller always according to.But a code can be sent by every 110ms, until remote controller key discharges.
Duplication code is fairly simple: the pulse beginning of a 9ms, 2.25ms interval, 560us pulse.
Protocol attribute table in relevant database is as shown in Table 1
Table one protocol attribute table
| Name | Describe | NEC infrared protocol |
| protocal_id | Unique number | 1(self-propagation integer) |
| protocal_name | Protocol name | NEC |
| protocal_modulefreq | Carrier frequency | 38000 |
| protocal_dutyratio | Dutycycle | 3 |
| protocal_bitswave | Logical bit waveform | 560,-560;560,-1690 |
| protocal_endian | Big small end | 0(small end) |
| protocal_type | Type of coding | 0(non-air-conditioning stand alone type) |
| protocal_repeat | Repeat | 0(is without repeating) |
Protocol frame table is as shown in Table 2
Table two protocol frame table
| Name | Describe | |
| frame_protocalid | Affiliated infrared protocol ID | |
| frame_seq | Frame number | |
| frame_name | Frame title | |
| frame_mode | Frame pattern | |
| frame_compare | Frame reference | |
| frame_fixlen | Frame regular length | |
| frame_fixtime | Frame fixes duration |
Agreement segment table is as shown in Table 3
Table three agreement segment table
| Name | Describe | |
| segment_protocalid | Affiliated infrared protocol ID | |
| segment_frameseq | Affiliated infrared portion ID | |
| segment_seq | Section sequence number | |
| segment_name | Name section | |
| segment_wavetype | Type of waveform | |
| segment_wavearray | Waveform array | |
| segment_bitlength | The bit length of section | |
| segment_bitmode | The bit pattern of section | |
| segment_bitcompare | The position reference of section | |
| segment_bits | The code value of section |
Feature according to above-mentioned NEC agreement, it is possible to obtain as shown in Table 4, agreement section is as shown in Table 5 for protocol frame
Table four protocol frame
Table five agreement section
The producer of any employing NEC agreement only need to be according to functions of the equipments definition command code, and the coding module of remote controller is permissible
Call the data configuration configuration file in above-mentioned protocol attribute table, protocol frame table and agreement segment table, then according to configuration file
Encode, get final product combination producing and meet the complete infrared code of form.Here we are as a example by common television set, below definition
Command code is as shown in Table 6.
Table six television set command code
| Button | Command code (8 binary systems) |
| Switch | 00101010 |
| Quiet | 00111111 |
| Volume adds | 00101111 |
| Volume down | 00101110 |
| Channel adds | 00101101 |
| Channel down | 00101100 |
| On | 01011001 |
| Under | 01011000 |
| Left | 01010110 |
| Right | 01010111 |
Existing infrared remote coding agreement that three described tables are compatible, coding module can be by inquiry relationship type number
Protocol attribute table according to storehouse obtains the base attribute of certain infrared remote coding agreement, obtains protocol frame data by protocol frame table and believes
Breath, obtains agreement segment data information by agreement segment table, can construct configuration file then in conjunction with the mutual relation between table, so
Rear combination command code can generate the complete infrared code meeting form.
The present invention is by analyzing the configuration file of existing infrared remote coding agreement in sum, and structure is mutually related
Protocol attribute table, protocol frame table and agreement segment table, coding unit calls according to the infrared remote coding agreement belonging to controlled device
Corresponding data configuration configuration file in protocol attribute table, protocol frame table and agreement segment table, then according to configuration file is compiled
Code, described infrared remote coding method can compatible existing different infrared remote coding agreements.
The above is only the preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For Yuan, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. an infrared remote coding method, it is characterised in that: comprise the following steps:
(1) analyze the configuration file of existing infrared remote coding agreement, extract the protocol name in configuration file, carrier frequency
Rate/modulating frequency, dutycycle, logical bit, big small end, type of coding and number of repetition, construct agreement in relevant database
Attribute list, extracts the frame title in configuration file, frame pattern, frame reference, frame regular length and frame and fixes duration, at relationship type number
According to storehouse constructs protocol frame table, extract the name section in configuration file, segment type, section time series waveform, the bit length of section, section
Bit pattern, section reference and the code value of section, in relevant database construct agreement segment table；
(2) the protocol attribute table in incidence relation type data base, protocol frame table and agreement segment table；
(3) pressing remote controller key sends characteristic signal；
(4) controlled device receives characteristic signal and sends feedback signal；
(5) coding unit receives feedback signal and judges the infrared remote coding agreement belonging to controlled device according to feedback signal；
(6) pressing remote controller key sends command code, and coding unit in remote controller receives command code, and according to affiliated infrared
In remote control coding agreement invocation protocol attribute list, protocol frame table and agreement segment table, corresponding data configuration configuration file, then presses
Encode according to configuration file.
A kind of infrared remote coding method the most according to claim 1, it is characterised in that: described existing infrared remote control is compiled
Code agreement includes NEC agreement, RC-5/6 agreement and SONY SIRC agreement.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104240491B (en) * | 2014-09-24 | 2017-10-13 | 恬家（上海）信息科技有限公司 | The digitizing solution of infrared signal |
| CN105139634B (en) * | 2015-09-21 | 2019-11-08 | 深圳小佳科技有限公司 | A kind of method and system automatically parsing different vendor's remote command in receiving end |
| CN105869383A (en) * | 2016-04-13 | 2016-08-17 | 北京精益理想科技有限公司 | Infrared data processing method, infrared instruction calling method and infrared instruction calling system |
| CN105915989A (en) * | 2016-04-29 | 2016-08-31 | 镇江惠通电子有限公司 | Infrared data transmission method and system, and remote control terminal |
| CN106297264A (en) * | 2016-08-31 | 2017-01-04 | 杭州赫智电子科技有限公司 | The coded method of the multiple ultra-red order of a kind of compatibility and system |
| CN108924615A (en) * | 2018-07-20 | 2018-11-30 | 深圳创维－Rgb电子有限公司 | A kind of method responding different ultra-red orders, storage medium and smart television |
| CN110286599B (en) * | 2019-06-28 | 2023-03-17 | 高斯贝尔数码科技股份有限公司 | Intelligent household appliance remote control method and system based on voice recognition |
| CN112863162A (en) * | 2020-12-29 | 2021-05-28 | Tcl王牌电器(惠州)有限公司 | Infrared signal transmitting device and method |
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