CN103745590A - Infrared remote coding method - Google Patents
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Abstract
The invention discloses an infrared remote coding method. The method comprises the following steps: (1) analyzing a configuration file of a conventional infrared remote coding protocol, constructing a protocol attribute table in a relational database, constructing a protocol frame table, and constructing a protocol segment table; (2) associating the protocol attribute table, the protocol frame table and the protocol segment table in the relational database; (3) transmitting a characteristic signal by pressing a key of a remote controller; (4) receiving the characteristic signal and transmitting a feedback signal by controlled equipment; (5) receiving the feedback signal by a coding unit and judging the infrared remote coding protocol to which the controlled equipment belongs according to the feedback signal; (6) receiving a command code transmitted by the key of the remote controller by the coding unit in the remote controller, constructing the configuration file by calling corresponding data in the protocol attribute table, the protocol frame table and the protocol segment table according to the infrared remote coding protocol to which the controlled equipment belongs, and coding according to the configuration file. The infrared remote coding method can be compatible with conventional different infrared remote coding protocols.
Description
Technical field
The present invention relates to a kind of coding method, be specifically related to a kind of infrared remote coding method.
Background technology
Infra-red remote control is most popular a kind of communication at present and remote control means.Because infrared remote controller has the features such as volume is little, low in energy consumption, function is strong, cost is low, thereby, after colour TV, video recorder, on other compact electric apparatus devices such as machine and toy that wither at sound-track engraving apparatus, stereo set, sky, also adopt one after another infra-red remote control.In commercial unit, under the environment such as high pressure, radiation, toxic gas, dust, adopt infra-red remote control not only completely reliable but also can effectively isolate electrical Interference.
It is communication rule that communication between Infrared remote controller and controlled device exists a communications protocol, is generally unidirectional communications protocol.This unidirectional communications protocol is called infrared remote coding agreement.The general Dou Shi of infrared remote coding agreement producer self-defining, as NEC, SONY, TOSHIBA, there is the infrared coding agreement of self-defining in the companies such as PHILIPS.Any electrical equipment development and production producer also can define the infrared coding agreement of oneself.
The waveform essential characteristic of infrared remote coding agreement is: the waveform that a string low and high level forms.Concerning telepilot, if high level makes infrared transmitting tube conducting, high level makes infrared transmitting tube send infrared light so, at electrical equipment receiving end, just can receive infrared light.Between low period, not conducting of infrared transmitting tube, infrared transmitting tube stops sending infrared light, at electrical equipment receiving end, does not just receive infrared light.
Early stage infrared coding agreement has is not with carrier wave.Because environment mid-infrared light signal is everywhere; so; when carrierfree telepilot is launched; often can mix some undesired signals, make electrical equipment reaction insensitive, so; carrierfree coding is generally all very short; object is for fear of interference, and still, extraneous infrared light disturbs also can make electrical equipment misoperation.Thereby carrierfree coding is day by day eliminated.Infrared coding with carrier wave just needs electrical equipment receiving end with bandpass filter.There is this bandpass filter, just thoroughly avoided the shortcoming being easily disturbed of carrierfree coding.
The coded system of infrared coding agreement generally has 2 kinds, and a kind of is pulse width modulation mode (PWM), and another kind is pulse-phase modulation (PPM) mode (PPM).The definition logical bit of pulse width modulation mode (PWM) is: a string carrier wave+mono-section low level, the different differences as distinguishing logical bit of the low level width of usining.The definition logical bit of pulse-phase modulation (PPM) mode (PPM) is: a string carrier wave is different with one section of low level front and back order distinguishes different logical bit, and if a string carrier wave+mono-section low level is logical zero, one section of low level+a string carrier wave is logical one.
Common logical bit only has 2 logical bit.Each logical bit is comprised of a carrier wave string and a low level.Derivative logical bit has: a string carrier wave or one section of low level are exactly logical bit, or a plurality of carrier wave strings and low level form a logical bit.The quantity of logical bit neither 2, have 3, and 4 ..., 16, even more.
A complete infrared coding agreement, often has basic waveform string (we are referred to as basic frame Frame), repeating frame and end frame.Some infrared coding agreements only have basic frame, there is no repeating frame and end frame; Most of infrared coding agreements have basic frame and repeating frame.As NEC6122 coding protocol, a frame of 9ms carrier wave string+4.5ms low level beginning is basic frame, and basic frame regular length is 108ms, and what 9ms carrier wave string below+2.25ms started is exactly repeating frame.
Due to the general Dou Shi of infrared remote coding agreement producer self-defining, so the infrared remote coding agreement between the equipment of different manufacturers is conventionally incompatible, the infrared remote coding agreement between the distinct device of same producer also may be different.
For the dissimilar infrared remote coding agreement of compatibility, common way is that existing infrared protocol is collected and stored, and then by mode classifications such as manufacturer, models, is undertaken adaptive one by one.At present, also do not exist a kind of infrared remote coding 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 invention provides a kind of infrared remote coding method, can compatible existing different infrared remote coding agreements.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
An 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 frequency/modulating frequency, dutycycle, logical bit, large small end, type of coding and multiplicity are constructed protocol attribute table in relevant database, extract the frame title in configuration file, frame pattern, frame reference, frame regular length and frame fixedly duration are constructed protocol frame table in relevant database, 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 is constructed agreement segment table in relevant database,
(2) the protocol attribute table in incidence relation type database, protocol frame table and agreement segment table;
(3) remote controller key sends characteristic signal;
(4) controlled device receive feature signal send feedback signal;
(5) coding unit receiving feedback signals according to the infrared remote coding agreement under feedback signal judgement controlled device;
(6) coding unit in telepilot receives the command code that remote controller key sends, and according to corresponding data configuration configuration file in affiliated infrared remote coding agreement invocation protocol attribute list, protocol frame table and agreement segment table, then according to configuration file, encode.
Described existing infrared remote coding agreement comprises NEC agreement, RC-5/6 agreement and SONY SIRC agreement.
Beneficial effect of the present invention: the present invention is by analyzing the configuration file of existing infrared remote coding agreement, construct be mutually related protocol attribute table, protocol frame table and agreement segment table, coding unit is according to corresponding data configuration configuration file in infrared remote coding agreement invocation protocol attribute list, protocol frame table and agreement segment table under controlled device, then according to configuration file, encode, described infrared remote coding method can compatible existing different infrared remote coding agreements.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 1, a kind of infrared remote coding method, comprises the following steps:
(1) analyze the configuration file of existing infrared remote coding agreement, wherein existing infrared remote coding agreement comprises NEC agreement, RC-5/6 agreement and SONY SIRC agreement etc., extract the protocol name in configuration file, carrier frequency/modulating frequency, dutycycle, logical bit, large small end, type of coding and multiplicity are constructed protocol attribute table in relevant database, extract the frame title in configuration file, frame pattern, frame reference, frame regular length and frame fixedly duration are constructed protocol frame table in relevant database, 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 is constructed agreement segment table in relevant database.
(2) the protocol attribute table in incidence relation type database, protocol frame table and agreement segment table; Table after association is as follows:
Protocol attribute table comprises following attribute:
A): protocol number, it is the major key of protocol attribute table and is integer;
B): protocol name, the common infrared remote coding agreement that has company's self-definings such as NEC, SONY, TOSHIBA, PHILIPS;
C): carrier frequency/modulating frequency, for the carrier frequency that represents that infrared signal adopts while modulating transmission or receipt decoding, the most commonly 38KHz;
D): dutycycle, the dutycycle of infrared signal carrier wave, is exactly the ratio that high level accounts for the one high and one low time, is generally 1/3,1/4;
E): logical bit, each logical bit is comprised of a high level (carrier wave string) and a low level, and common logical bit only has 2, i.e. logical zero and logical one;
F): large small end; Large end pattern, refers to and be kept in the low address of internal memory, and the low level of data is kept at the high positions of data in the high address of internal memory; Little endian mode, refer to that a high position for data is kept in the high address of internal memory, and the low level of data is kept in the low address of internal memory; The different definition of large small end, can have influence on the order that infrared data is received and dispatched;
G): type of coding, comprises combined type and stand alone type; For example, because air-conditioning equipment has comprised all control informations conventionally in an infrared remote coding bag, so the infrared coding of its transmission is the combination of all states of equipment, and we are referred to as combined type; And conventionally only comprising certain state of a control in the each infrared remote coding bag sending of other equipment, we are referred to as stand alone type;
H): multiplicity, for example some infrared remote coding agreement need to will just become an effective infrared remote coding packet after identical data content repeated combination, and most of infrared protocol is without repetition.
Protocol frame table comprises following attribute:
A): protocol number is the external key of protocol attribute table;
B): frame order numbering, represents the sequence number of this frame and be integer; The set of properties of protocol number and frame order numbering is the major key of protocol frame table;
C): frame title, for the ease of understanding and read, the title of getting to this frame;
D): frame pattern, represents 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, this attribute is meaningless so; If the frame pattern of this frame is repeating frame or radix-minus-one complement frame, this attribute representation repeats or the reference frame sequence number of negate so;
F): frame regular length, represents that whether this frame is fixing duration;
G): frame is duration fixedly, if when frame regular length is effective, this attribute representation frame is duration fixedly; If when frame regular length is invalid, this attribute is invalid.
Agreement segment table comprises following attribute:
A): protocol number is the external key of protocol attribute table;
B): frame number is the external key of protocol frame table;
C): section order numbering, represent the sequence number of this section in protocol frame and be integer, the set of properties of protocol number, frame number and section order numbering is the major key of agreement segment table;
D): name section, for the ease of understanding and read, the title of getting to this section;
E): segment type, represent that this section is according to logical bit, or according to time series waveform;
F): section time series waveform, if segment type is according to time series waveform, the definition of this time series waveform of this attribute representation, data CSV;
G): the bit length of section, represent the length of this section, segment type is during according to logical bit, and this attribute is just effectively;
H): the bit pattern of section, represents 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, this attribute is meaningless so, if the stage mode of this section is repeated segments or radix-minus-one complement section, this attribute representation repeats or the reference field sequence number of negate so;
J): the code value of section, represent the value of this section, segment type is during according to logical bit, and this attribute is just effectively.
(3) remote controller key sends characteristic signal.
(4) controlled device receive feature signal send feedback signal.
(5) coding unit receiving feedback signals according to the infrared remote coding agreement under feedback signal judgement controlled device.
(6) coding unit in telepilot receives the command code that remote controller key sends, and according to corresponding data configuration configuration file in affiliated infrared remote coding agreement invocation protocol attribute list, protocol frame table and agreement segment table, then according to configuration file, encode.
The modal NEC agreement of take is below example, sets forth.
NEC agreement, by NEC Corporation, developed the earliest, and be widely used in various electrical equipment control, and be characterized in: 8 bit address and 8 order of the bit, address and order are all transmitted 2 times, recurrent interval modulation, 38kHz carrier frequency, each time is 1.12ms or 2.25ms, modulation employing length interpulse period is modulated each, each pulse is the 38kHz carrier pulse of 560us length, and dutycycle is approximately 21 cycles of 1/3().It is that pulse by 9ms starts that common guidance command sends, then be that 4.5ms is idle, then be address, order, address and order all transmit 2 times, and secondary address and order are radix-minus-one complements, can be used for the information that verification receives, total transmission time is fixed, because each has radix-minus-one complement to transmit, an order only sends once, though the button on telepilot always according to.But can send a code 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 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 | |
| | Dutycycle | 3 | |
| protocal_bitswave | Logical bit waveform | 560,-560;560,-1690 | |
| protocal_endian | Large small end | 0(small end) | |
| protocal_type | Type of coding | The non-air-conditioning stand alone type of 0() | |
| protocal_repeat | Repeat | 0(is without repeating) |
Protocol frame table 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 is duration fixedly | ? |
Agreement segment table 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 | ? |
According to the feature of above-mentioned NEC agreement, can obtain protocol frame as shown in Table 4, agreement section is as shown in Table 5
Table four protocol frame
Table five agreement section
The producer of any employing NEC agreement only need be according to functions of the equipments definition command code, the coding module of telepilot can 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 the complete infrared code that combination producing meets form.Here we take common televisor as example, define following command code as shown in Table 6.
Table six televisor command code
| Button | Command code (8 scale-of-two) |
| 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 obtain by the protocol attribute table of query relation type database the base attribute of certain infrared remote coding agreement, by protocol frame table, obtain protocol frame data message, by agreement segment table, obtain agreement segment data information, then the mutual relationship between associative list can be constructed configuration file, then in conjunction with command code, can generate the complete infrared code that meets form.
The present invention is by analyzing the configuration file of existing infrared remote coding agreement in sum, construct be mutually related protocol attribute table, protocol frame table and agreement segment table, coding unit is according to corresponding data configuration configuration file in infrared remote coding agreement invocation protocol attribute list, protocol frame table and agreement segment table under controlled device, then according to configuration file, encode, described infrared remote coding method can compatible existing different infrared remote coding agreements.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. an infrared remote coding method, is characterized 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/modulating frequency, dutycycle, logical bit, large small end, type of coding and multiplicity are constructed protocol attribute table in relevant database, extract the frame title in configuration file, frame pattern, frame reference, frame regular length and frame fixedly duration are constructed protocol frame table in relevant database, 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 is constructed agreement segment table in relevant database,
(2) the protocol attribute table in incidence relation type database, protocol frame table and agreement segment table;
(3) remote controller key sends characteristic signal;
(4) controlled device receive feature signal send feedback signal;
(5) coding unit receiving feedback signals according to the infrared remote coding agreement under feedback signal judgement controlled device;
(6) coding unit in telepilot receives the command code that remote controller key sends, and according to corresponding data configuration configuration file in affiliated infrared remote coding agreement invocation protocol attribute list, protocol frame table and agreement segment table, then according to configuration file, encode.
2. a kind of infrared remote coding method according to claim 1, is characterized in that: described existing infrared remote coding agreement comprises NEC agreement, RC-5/6 agreement and SONY SIRC agreement.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104240491A (en) * | 2014-09-24 | 2014-12-24 | 恬家（上海）信息科技有限公司 | Method for digitizing infrared signal |
| CN105139634A (en) * | 2015-09-21 | 2015-12-09 | 康佳集团股份有限公司 | Method and system for automatically parsing remote control instructions of different manufacturers at receiving terminal |
| 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 |
| CN110286599A (en) * | 2019-06-28 | 2019-09-27 | 成都驰通数码系统有限公司 | A kind of intelligent appliance remote control method and system based on speech 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105139634A (en) * | 2015-09-21 | 2015-12-09 | 康佳集团股份有限公司 | Method and system for automatically parsing remote control instructions of different manufacturers at receiving terminal |
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| 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 |
| CN110286599A (en) * | 2019-06-28 | 2019-09-27 | 成都驰通数码系统有限公司 | A kind of intelligent appliance remote control method and system based on speech 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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