CN105427577B - A kind of processing method of infrared data, processing unit and coding/decoding method - Google Patents
A kind of processing method of infrared data, processing unit and coding/decoding method Download PDFInfo
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Abstract
The present invention provides a kind of processing method of infrared data, processing unit and coding/decoding methods, and the data volume to solve the problems, such as the infrared data of pulse code in the prior art is big, needs to occupy biggish memory space.It the treating method comprises: receiving infrared signal, obtain the pulse width values of first data waveform in the data waveform of infrared signal as first classification data value, and be assigned to first code character, first code character is saved in character-coded data；The pulse width values of data waveform after sequentially obtaining in infrared signal, judge current pulse length value respectively with pth -1 and before the absolute value of the difference of each classification data value whether in predetermined threshold range, if so, being saved after substituting current pulse length value with the code character of corresponding classification data value institute assignment；If not, it is determined that current pulse length value is p-th of classification data value, is stored in character-coded data after substituting current pulse length value with p-th of code character.
Description
Technical field
The present invention relates to infrared data encoding and decoding technique field more particularly to a kind of processing methods of infrared data, processing
Device and coding/decoding method.
Background technique
Existing infrared remote-controlled signal all uses certain Signal coding mode, difference be only signal time length and
The difference of digit.Common Signal coding mode has: pulse code, i.e., according to the mode of pulse width different coding, Sony
What CSONY) company used is exactly this coding mode.Space coding is encoded according to interpulse period length difference
Mode, also commonly known as REC-80 mode.Transform coding, i.e., the side encoded according to pulse and the change of interval time sequence
Formula, also referred to as RC-5 mode.
And the mode that infrared data is encoded in the above described manner, it is required to each high level in record infrared signal
The pulse width values of pulse and low level pulse, such as the pulse width values of high level pulse are 562 microseconds, low level pulse arteries and veins
Rushing width value is 1112 microseconds, can be denoted as 562,1112 respectively according to the position and sequence occurred in infrared signal.Citing
Following infrared data: 3611,1793,562,1112,562,1112,562,1112,562,562,562,562,562,562,
562,1112,562,562,562,562,562,563,562,562,562,562,562,1112,562,562,562,562,
562,562,562,1113,561,562,562,562,562,562,562,562,562,562,562,1112,562,561,
3611,1794,562,560,562,560,562,1109,562,560,562,560,561,559,562,1109,562,560,
562,1109,562,1109,562,1109,562,1109,562,560,562,1109,562,1109,562,1109,562,
53590,3611,3610,563,53800；Wherein, first pulse width values 3611 is the pulse width values of high level pulse,
That is generally height ... height (referring to level) arrangement.As it can be seen that above-mentioned coding mode, data volume is big, needs to occupy biggish
Memory space.
Summary of the invention
The embodiment of the invention provides a kind of processing method of infrared data, processing unit and coding/decoding methods, existing to solve
Have that the data volume of the infrared data of pulse code in technology is big, needs the problem of occupying biggish memory space.
The purpose of the present invention is what is be achieved through the following technical solutions:
The embodiment of the present invention provides a kind of processing method of infrared data, comprising:
The infrared signal that infrared sending device is sent is received, first data in the data waveform of the infrared signal are obtained
The pulse width values of waveform, the data waveform include high level pulse and low level pulse；
Using the pulse width values got for the first time as first classification data value, and it is assigned to first coding
Character saves first code character in character-coded data；
Sequentially obtain the pulse of the data waveform in the infrared signal after first data waveform
Width value judges each institute of the presently described pulse width values got respectively with the classification data value of pth -1 and before
The absolute value of the difference of classification data value is stated whether in predetermined threshold range, if so, with the absolute value of difference described pre-
It is saved after determining the presently described pulse width values of code character substitution of the classification data value institute assignment in threshold range
In the character-coded data；If not, it is determined that presently described pulse width values are p-th of classification data value, with pth
A code character is stored in the character-coded data after substituting presently described pulse width values；Wherein, p=2,3,
4 ... .N, N are the natural number more than or equal to 2.
The embodiment of the present invention has the beneficial effect that: by dividing the pulse width values in the infrared signal
Class replaces institute of the absolute value in the predetermined threshold range of mutual difference with the small code character of memory space
It states pulse width values, and with the code character is encoded to obtain that occupy memory space smaller described to the infrared signal
Character-coded data, to realize the purpose for saving memory space.
The embodiment of the present invention also provides a kind of processing unit of infrared data, comprising:
Receiving unit, the infrared signal sent for receiving infrared sending device, obtains the data wave of the infrared signal
The pulse width values of first data waveform in shape, the data waveform include high level pulse and low level pulse；And it uses
In the pulse width values for sequentially obtaining the data waveform in the infrared signal after first data waveform；
Taxon, for using the pulse width values got for the first time as first classification data value；And
Presently described pulse width values for judging to get with the classification data value of pth -1 and before each respectively
Whether the absolute value of the difference of a classification data value is in predetermined threshold range, if so, by presently described pulse width
Value is attributed to the classification data value of the absolute value of difference in the predetermined threshold range, if not, it is determined that presently described
Pulse width values are p-th of classification data value；Wherein, p=2,3,4 ... .N, N are the nature more than or equal to 2
Number；
Processing unit, for first classification data value to be assigned to first code character, in character code number
According to first code character of middle preservation；And the presently described pulse width values point got in taxon judgement
The absolute value of the difference of each classification data value not with the classification data value of pth -1 and before is in the predetermined threshold
When in range, with the coded word of classification data value institute assignment of the absolute value of difference in the predetermined threshold range
Symbol is stored in the character-coded data after substituting presently described pulse width values；And it is obtained in taxon judgement
The each classification data value of the presently described pulse width values got respectively with the classification data value of pth -1 and before
When the absolute value of difference is not in the predetermined threshold range, presently described pulse width is substituted with p-th of code character
It is stored in after value in the character-coded data.
The embodiment of the present invention has the beneficial effect that: obtaining high level pulse in the infrared signal by the receiving unit
With the pulse width values of low level pulse, the pulse width values in the infrared signal are carried out by the taxon
Classification, replaces the absolute value of mutual difference in the predetermined threshold range with the small code character of memory space
The pulse width values, and the infrared signal is encoded with the code character by the processing unit and is occupied
The smaller character-coded data of memory space, to realize the purpose for saving memory space.
The embodiment of the present invention also provides a kind of coding/decoding method of infrared data, comprising:
Successively obtain the code character in the character-coded data；
Using the corresponding classification data value of the code character as the pulse width values, according to the volume of acquisition
The pulse width values are converted to high level pulse or low level by arrangement position of the code character in the character-coded data
Pulse output.
The embodiment of the present invention has the beneficial effect that: reverse-engineering is carried out to the character-coded data, with the classification number
The pulse width values characterized according to value replace the code character got, and using the pulse width values as output
High level pulse or low level pulse, to realize the decoding of the character-coded data.
Detailed description of the invention
Fig. 1 is a kind of flow chart of the processing method of infrared data provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the processing method of another infrared data provided in an embodiment of the present invention；
Fig. 3 is a kind of structural block diagram of the processing unit of infrared data provided in an embodiment of the present invention；
Fig. 4 is a kind of flow chart of the coding/decoding method of infrared data provided in an embodiment of the present invention.
Specific embodiment
The realization process of the embodiment of the present invention is described in detail with reference to the accompanying drawings of the specification.It should be noted that
Same or similar label indicates same or similar element or element with the same or similar functions from beginning to end.Lead to below
It crosses the embodiment being described with reference to the drawings to be exemplary, for explaining only the invention, and be not considered as limiting the invention,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment one
Referring to Fig. 1, the embodiment of the present invention provides a kind of processing method of infrared data, comprising:
101, the infrared signal that infrared sending device is sent is received, first data in the data waveform of infrared signal are obtained
The pulse width values of waveform, data waveform include high level pulse and low level pulse.
It should be noted that the infrared signal can be the infrared letter by master remote controller or connection computer or single-chip microcontroller plate
What number transmitter was sent, details are not described herein.Thought according to the present invention can provide the learning-oriented of corresponding infrared launcher
From remote controler, the infrared signal that infrared launcher is sent is received.
Such as in the prior art, infrared signal is encoded with Microsoft's long time coding mode, is obtained following infrared
Coded data:
3611,1793,562,1112,562,1112,562,1112,562,562,562,562,562,562,562,
1112,562,562,562,562,562,563,562,562,562,562,562,1112,562,562,562,562,562,
562,562,1113,561,562,562,562,562,562,562,562,562,562,562,1112,562,561,3611,
1794,562,560,562,560,562,1109,562,560,562,560,561,559,562,1109,562,560,562,
1109,562,1109,562,1109,562,1109,562,560,562,1109,562,1109,562,1109,562,53590,
3611,3610,563,53800；Every set of number represents the pulse width values of a high level pulse or low level pulse, each
A pulse width values need 2-3 byte to be stored, it can thus be appreciated that Microsoft long time coding mode is completely to high electricity
The numerical value of the pulse width values of flat pulse or low level pulse is recorded.Usual high level pulse and low level pulse are alternately sent out
It send, in the present embodiment, the pulse width values 3611 of first data waveform are high level, represent one with each pulse width values
A level waveforms, whole level waveforms meet for the rule of height ... height (level).
According to the step 101 of the present embodiment, can be got by the infrared signal such as above-mentioned Microsoft long time coding
The pulse width values for first data waveform that mode records are 3611.
102, using the pulse width values got for the first time as first classification data value, and it is assigned to first coding
Character saves first code character in character-coded data.
For example, first pulse width values 3611 that step 101 is obtained are used as first classification data value, it is allowed to assignment
It is stored in character-coded data to first code character A, and by first code character A.Certainly, code character can be with
It is A, B, C, D, E etc. are also possible to H, I, J, the word of K, L etc. or other English alphabets, Arabic numerals or other Languages
It is female；Preferably, code character is English alphabet；Details are not described herein.
103, the pulse width values of the data waveform in infrared signal after first data waveform are sequentially obtained, judgement obtains
The current pulse length value the got absolute value with -1 classification data value of pth and the difference of each classification data value before respectively
Whether in predetermined threshold range, that is, judge the presently described pulse width values got respectively with have confirmed each point
Whether the absolute value of the difference of class data value is in predetermined threshold range.
If so, the code character substitution of the classification data value institute assignment with the absolute value of difference in predetermined threshold range
It is stored in character-coded data after current pulse length value；If not, it is determined that current pulse length value is p-th of classification data
Value is stored in character-coded data after substituting current pulse length value with p-th of code character；Determine current pulse length
Value is new classification data value, and is stored in character-coded data after substituting current pulse length value with new code character；
Wherein, p=2,3,4 ... .N, N are the natural number more than or equal to 2.
In the present embodiment, predetermined threshold can be the range of a percentage of current pulse length value, be also possible to one
The range of a numerical value.Generally for compatibility is improved, using the range of percentage as predetermined threshold, for example, current PRF is wide
Angle value is 3611, take its 1%~10% range as determine predetermined threshold foundation, then predetermined threshold be 3611*1%~
3611*10%.
According to step 103, the pulse width values of the data waveform after the first data waveform can be judged, be classified
It is substituted with corresponding character code.
Still with the pulse width of infrared signal for following data instance:
3611,1793,562,1112,562,1112,562,1112,562,562,562,562,562,562,562,
1112,562,562,562,562,562,563,562,562,562,562,562,1112,562,562,562,562,562,
562,562,1113,561,562,562,562,562,562,562,562,562,562,562,1112,562,561,3611,
1794,562,560,562,560,562,1109,562,560,562,560,561,559,562,1109,562,560,562,
1109,562,1109,562,1109,562,1109,562,560,562,1109,562,1109,562,1109,562,53590,
3611,3610,563,53800。
According to above-mentioned rapid, the pulse width values 3611 of first data waveform are encoded into A with first character, and by first
A character code A is stored in character-coded data.
The pulse width values 1793 for getting second data waveform, determine pulse width values 1793 and pulse width values
The absolute value of 3611 difference in predetermined threshold range (1793*1%~1793*10%), then can not determine pulse width
Value 1793 is used as second classification data value, and second character code B of assignment, and second character code B is stored in character
In coded data, then in subsequent judgement, pulse width values 1793 and pulse width values 1794 simultaneously will be with second characters
Coding B is stored in character-coded data.
Likewise, the pulse width values of subsequent other data waveforms also carry out treatment thereto, the multiple classification determined
Data value is 3611,1793,562,1112,53800, and corresponding character code is A, B, C, D, E, finally obtained character
Coded data is as follows:
ABCDCDCDCCCCCCCDCCCCCCCCCCCDCCCCCCCDCCCCCCCCCCCDCCABCCCCCDCCCCCCCDCC
CDCDCDCDCCCDCDCDCE,AACE。
Obviously, the classification data value and pulse width values determined by above-mentioned steps has corresponding relationship as shown in Table 1:
Table 1
According to the corresponding relationship between above-mentioned classification data value and corresponding each pulse width values, code character (example
Such as A, B, C, D, E) and pulse width values between relationship it is as follows:
Such as code character A respective pulses width value 3611,3610,3609；Code character B corresponding 1793,1794；Coding
Character C respective pulses width value 562,561,559,563；Code character D respective pulses width value 1112,1113,1109；Coding
Character E respective pulses width value 53800,53590.
Certainly, above corresponding relationship is obtained by the judgement of predetermined threshold, for this purpose, providing a kind of specific algorithm
Above-mentioned deterministic process is illustrated:
1, determine predetermined threshold be α, process data variable be β, same class classification data value counts be γ 1, γ 2,
γ 3, γ 4 (initial value 1), data waveform data it is total be counted as ε.
2, it is assigned to a using the pulse width values of the data waveform extracted for the first time as first classification data value,
Code character A is saved in character-coded data.
3, continue to obtain subsequent data waveform, the current pulse width values that will acquire are assigned to β, as β ∈ [a* (1-
α), a* (1+ α)], (a+ β)/γ 1 is assigned to a, while γ 1 plus 1, until β is not belonging to [a* (1- α), a* (1+ α)], at this time will
β is assigned to b, and code character B is saved in character-coded data；
4, continue to obtain subsequent data waveform, the current pulse width values that will acquire are assigned to β, as β ∈ [b* (1-
α), b* (1+ α)], (b+ β)/γ 2 is assigned to b, until β is not belonging to [a* (1- α), a* (1+ α)] ∩ [b* (1- α), b* (1+
α)], β is assigned to c at this time, code character C is saved in character-coded data；
5, continue to obtain subsequent data waveform, the current pulse width values that will acquire are assigned to β, as β ∈ [c* (1-
α), c* (1+ α)], (c+ β)/γ 3 is assigned to c, until β is not belonging to [a* (1- α), a* (1+ α)] ∩ [b* (1- α), b* (1+
α)] ∩ [c* (1- α), c* (1+ α)], is assigned to d for β at this time, and code character D is saved in character-coded data；
6, continue to obtain subsequent data waveform, the current pulse width values that will acquire are assigned to β, as β ∈ [d* (1-
α), d* (1+ α)], (d+ β)/γ 4 is assigned to d, until β is not belonging to [a* (1- α), a* (1+ α)] ∩ [b* (1- α), b* (1+
α)] ∩ [c* (1- α), c* (1+ α)] ∩ [d* (1- α), d* (1+ α)], is assigned to e for β at this time, saves in character-coded data
Code character E.
By above-mentioned algorithm, can be realized the pulse width values of high level pulse and low level pulse in infrared signal
It is encoded to character-coded data and saves, which, which can be, is stored in receiving device (such as infrared signal receiver or distant
Control device) memory in, in itself memory or external memory.
The infrared coded data saved with pulse width values occupies 204 bytes in storage, due to former infrared coding number
The number of one group of characterization pulse width values needs to occupy at least two bytes in, and code character only uses a byte, therefore
In processing method provided in this embodiment, the character-coded data recompiled only takes up former infrared coded data and is storing
50% or so of space, saves memory space.
Certainly, in order to correctly parse the character-coded data of storage, classification data value should also be saved, it is preferred that
Using character-coded data as the data segment of infrared character code storing data content store, using each classification data value as
The content of the parsing section of infrared character code storing data stores；Wherein, arrangement of each classification data value in parsing section is suitable
Stored sequencing is consistent for the first time with code character each in data segment for sequence.
For example, recompiling to obtain character-coded data (ABCDCDCDCCCCCCC according to above-mentioned infrared coded data
DCCCCCCCCCCCDCCCCCCCDCCCCCCCCCCCDCCABCCCCCDCCCCCCCDCCCDCDCDCDCCCDCDCDCE,
AACE), this is stored in to the data segment of infrared character code storing data, while by classification data value for character-coded data
(3611,1793,562,1112,53800) are stored in the parsing section of infrared character code storing data, as follows:
3611,1793,562,1112,5380,ABCDCDCDCCCCCCCDCCCCCCCCCCCDCCC CCCCDCCCCCCC
CCCCDCCABCCCCCDCCCCCCCDCCCDCDCDCDCCCDCDCDCE,AACE。
Wherein, the distributing order of classification data value (3611,1793,562,1112,53800) is with different pulse widths
The sequence consensus that value obtains for the first time, such as infrared coded data (3611,1793,562,1112,562,1112,562,
1112,562,562,562,562,562,562,562,1112,562,562,562,562,562,563,562,562,562,
562,562,1112,562,562,562,562,562,562,562,1113,561,562,562,562,562,562,562,
562,562,562,562,1112,562,561,3611,1794,562,560,562,560,562,1109,562,560,562,
560,561,559,562,1109,562,560,562,1109,562,1109,562,1109,562,1109,562,560,562,
1109,562,1109,562,1109,562,53590,3611,3610,563,53800) in, each different pulse width values
The sequencing obtained for the first time is as follows: 3611,1793,562,1112,563,1113,561,1794,560,559,1109,
3590,3610,53590,53800, and with classification data be worth corresponding pulse width values first time obtain sequencing such as
Under: 3611,1793,562,1112,53800.Therefore, only from numerically understanding, the distributing order of classification data value is selected
Make the sequencing of the first time acquisition of the pulse width values of those classification data values.
Based on actual needs, can also increase in infrared character code storing data infrared signal total duration value and
Carrier value, the total duration value and carrier value of certain infrared signal need to obtain or determine in a step 101, in each coding
Character make when being saved one time it is corresponding count is incremented, according to the respective preservation number of each code character and corresponding point
Total duration value and carrier value are stored in the parsing section end of infrared character code storing data by the sum of products of class data value,
Such as infrared character code storing data are as follows:
3611,1793,562,1112,5380,118368,38,ABCDCDCDCCCCCCCDCCCCCCCC CCCDCCCCC
CCDCCCCCCCCCCCDCCABCCCCCDCCCCCCCDCCCDCDC DCDCCCDCDCDCE,AACE。
Wherein, 118368 be infrared signal total duration value, unit is consistent with pulse width values, and usual microsecond, 38 is infrared
The carrier value of signal, the unit of carrier value are usually kHz, it is of course possible to separately be specified.
It can also be recorded in infrared character code storing data and press strong data segment, such as infrared word including key title
Accord with code storage data are as follows:
power,3611,1793,562,1112,5380,118368,38,ABCDCDCDCCCCCCCDCCCC CCCCCCC
DCCCCCCCDCCCCCCCCCCCDCCABCCCCCDCCCCCCCDCCCDCDCDCDCCCDCDCDCE,AACE。
Wherein, " powe " is stored in the key title by strong data segment, can according to key possessed by remote controler into
Row setting, such as the key for indicating volume adjustment, adjusting the functions such as platform, picture control, details are not described herein.
The additional information number including brand manufacturers and device model can also be recorded in infrared character code storing data
According to section, such as infrared character code storing data are as follows:
Hisense,LED55XT800UCD,power,3611,1793,562,1112,5380,118368,38,ABC DC
DCDCCCCCCCDCCCCCCCCCCCDCCCCCCCDCCCCCCCCCCCDCCABCCCCCDCCCCCCCDCCCDCDCDCDCCCDC
DCDCE,AACE。
Wherein, " Hisense " occupied additional information data section is for storing brand manufacturers, " LED55XT800UCD "
Occupied additional information data section is for depositing device model.
It include the data such as brand manufacturers, device model, key title in record according to the infrared coded data of the example above
Afterwards, obtained infrared character code storing data (136 byte) still only takes up infrared coding in storage according to the present invention
The 67% of data (204 bytes), is greatly reduced the memory space of occupancy.
The embodiment of the present invention has the beneficial effect that: by classifying to the pulse width values in infrared signal, with storage
The small code character in space replaces pulse width values of the absolute value of mutual difference in predetermined threshold range, and to compile
Code character is encoded to obtain to infrared signal occupies the smaller character-coded data of memory space, to realize that saving storage is empty
Between purpose.
Implement two
Referring to fig. 2, it is based on same invention thought, the embodiment of the present invention provides the processing method of another infrared data, packet
It includes:
201, the infrared signal that infrared sending device is sent is received, first data in the data waveform of infrared signal are obtained
The pulse width values of waveform, data waveform include high level pulse and low level pulse.
202, using the pulse width values got for the first time as first classification data value, and it is assigned to first coding
Character saves first code character in character-coded data.
203, the pulse width values of the data waveform in infrared signal after first data waveform are sequentially obtained, judgement obtains
The current pulse length value the got absolute value with -1 classification data value of pth and the difference of each classification data value before respectively
Whether in predetermined threshold range, if so, the classification data value institute assignment with the absolute value of difference in predetermined threshold range
Code character substitution current pulse length value after be stored in character-coded data；If not, it is determined that current pulse length value
For p-th of classification data value, it is stored in character-coded data after substituting current pulse length value with p-th of code character；Its
In, p=2,3,4 ... .N, N are the natural number more than or equal to 2.
First three step is roughly the same with embodiment one, the difference is that further include:
204, higher two code characters of repetitive rate in character-coded data are respectively defined as digital " 0 " and number " 1 ",
It is replaced per 8 adjacent bit digitals by a digital group with hexadecimal number, and character-coded data is recompiled；Wherein,
The code character of the interlude of character-coded data less than 8 with " 0 " polishing, the code character of character-coded data tail end is not
8, foot remains unchanged.
For example, according to implement an obtained infrared character code storing data (Hisense, LED55XT800UCD,
power,3611,1793,562,1112,5380,118368,38,ABCDC DCDCCCCCCCDCCCCCCCCCCCDCCCCCCC
DCCCCCCCCCCCDCCABCCCCCDCCCCCCCDCCCDCDCDCDCCCDCDCDCE, AACE), volume that can be high by repetitive rate
Code character C, D are replaced respectively with digital " 0 " and number " 1 ", and every 8 continuous numbers are formed a hexadecimal data,
With digital " 0 " polishing, the code character that the code character E of corresponding data waveform total duration is adjacent is remained unchanged for insufficient position, is obtained
The infrared character code storing data of optimization is as follows:
Hisense,LED55XT800UCD,power,3611,1793,562,1112,53800,118368,38,AB,
0x54,0x04,0x00,0x40,0x40,0x04,AB,0x04,0x04,0x55,0x15,CEAACE。
It is described as follows with one of hexadecimal data, such as 0x54, with digital " 0 " and digital " 1 " substitution table
It is shown as 0x01010100, that is, corresponds to character code CDCDCDCC, other hexadecimal datas have same corresponding relationship, herein
It will not enumerate.
The memory space for 68 bytes that the infrared character code storing data of above-mentioned optimization only takes up, can greatly save
Memory space.Certainly thought other modifications can also be carried out according to the present invention, still in the scope of the present invention.
Embodiment three
Referring to Fig. 3, the embodiment of the present invention provides a kind of processing unit of infrared data, comprising:
Receiving unit 301, the infrared signal sent for receiving infrared sending device, obtains the data waveform of infrared signal
In first data waveform pulse width values, data waveform includes high level pulse and low level pulse；And for sequentially
Obtain the pulse width values of the data waveform in infrared signal after first data waveform；
Taxon 302, for using the pulse width values got for the first time as first classification data value；And
The each classification number of current pulse length value respectively with -1 classification data value of pth and before for judging to get
According to value difference absolute value whether in predetermined threshold range, if so, current pulse length value is attributed to the exhausted of difference
To classification data value of the value in predetermined threshold range, if not, it is determined that current pulse length value is p-th of classification data value；
Wherein, p=2,3,4 ... .N, N are the natural number more than or equal to 2；
Processing unit 303, for first classification data value to be assigned to first code character, in character-coded data
First code character of middle preservation；And the current pulse length value got in taxon judgement is classified with pth -1 respectively
When the absolute value of the difference of data value and each classification data value before is in predetermined threshold range, existed with the absolute value of difference
Character code is stored in after the code character substitution current pulse length value of classification data value institute assignment in predetermined threshold range
In data；And the current pulse length value that gets of taxon judgement respectively with -1 classification data value of pth and before
When the absolute value of the difference of each classification data value is not in predetermined threshold range, current PRF is substituted with p-th of code character
It is stored in character-coded data after width value.
Certainly, based on the considerations of different needs and more optimized coding, receiving unit 301 and processing unit 303 can be with
With following function:
Processing unit 303 is also used to be respectively defined as counting by higher two code characters of repetitive rate in character-coded data
Word " 0 " and number " 1 " are replaced with hexadecimal number by a digital group per 8 adjacent bit digitals, and carried out to character-coded data
It recompiles；Wherein, the code character of the interlude of character-coded data less than 8 with " 0 " polishing, character-coded data tail
The code character at end remaining unchanged less than 8.
Processing unit 303 is also used to using character-coded data as in the data segment of infrared character code storing data
Storage is stored, is stored each classification data value as the content of the parsing section of infrared character code storing data；Wherein, Ge Gefen
Stored sequencing is consistent for the first time with code character each in data segment for class data value putting in order in parsing section.
Receiving unit 301, is also used to: make when each code character is saved one time it is corresponding count is incremented, according to each
The respective sum of products for saving number and corresponding classification data value of a code character, determines the total duration of infrared signal
Value and carrier value；Processing unit 303 is also used to for total duration value and carrier value being stored in the solution of infrared character code storing data
Analyse section end.
Processing unit 303, being also used to record in infrared character code storing data includes key title by number of package evidence
Section.
Processing unit 303, being also used to record in infrared character code storing data includes brand manufacturers and device model
Additional information data section.
The embodiment of the present invention has the beneficial effect that: obtaining high level pulse and low level in infrared signal by receiving unit
The pulse width values of pulse classify to the pulse width values in infrared signal by taxon, small with memory space
The absolute value that code character replaces mutual difference is less than or equal to the pulse width values of predetermined threshold range, and passes through place
Reason unit is encoded to obtain with code character to infrared signal occupies the smaller character-coded data of memory space, to realize
Save the purpose of memory space.
Example IV
Referring to fig. 4, the embodiment of the present invention also provides a kind of coding/decoding method of infrared data, comprising:
401, successively obtain the code character in character-coded data.
For infrared character code storing data obtained in embodiment one, usually first successively obtains infrared character code and deposit
The classification data value stored in storage data；After successively obtaining the code character in character-coded data again, then according to each
Classification data value putting in order and code character first time each in data segment stored sequencing one in parsing section
The corresponding relationship of cause determines the corresponding classification data value of code character.
For the infrared character code storing data of optimization obtained in embodiment one, infrared character is usually first successively obtained
The classification data value stored in code storage data；The character recompiled with digital " 0 " and digital " 1 " is successively obtained again
Hexadecimal number in coded data parses hexadecimal number and determines the coded word obtained according to each that parsing obtains
Symbol, then according to each classification data value, putting in order in parsing section is deposited for the first time with code character each in data segment
The consistent corresponding relationship of the sequencing of storage determines the corresponding classification data value of code character.It should be noted that in embodiment
The infrared character code storing data of obtained optimization in two saves coded word due to not saving code character or part directly
Symbol, therefore the code character that may be used can be preset or save code character, calling when to parse.
402, using the corresponding classification data value of code character as pulse width values, according to the code character of acquisition in character
Pulse width values are converted to high level pulse or low level pulse export by the arrangement position in coded data.
The embodiment of the present invention has the beneficial effect that: reverse-engineering is carried out to character-coded data, with classification data value institute table
The pulse width values of sign replace the code character got, and using pulse width values as output high level pulse or low level arteries and veins
Punching, to realize the decoding of character-coded data.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (15)
1. a kind of processing method of infrared data characterized by comprising
The infrared signal that infrared sending device is sent is received, first data in the data waveform of the infrared signal are obtained
The pulse width values of waveform, the data waveform include high level pulse and low level pulse；
Using the pulse width values got for the first time as first classification data value, and it is assigned to first coded word
Symbol saves first code character in character-coded data；
Sequentially obtain the pulse width of the data waveform in the infrared signal after first data waveform
Value judges each described point of the presently described pulse width values got respectively with the classification data value of pth -1 and before
Whether the absolute value of the difference of class data value is in predetermined threshold range, if so, with the absolute value of difference in the predetermined threshold
The code character of classification data value institute assignment within the scope of value is stored in institute after substituting presently described pulse width values
It states in character-coded data；If not, it is determined that presently described pulse width values are p-th of classification data value, with p-th of institute
It states after code character substitutes presently described pulse width values and is stored in the character-coded data；Wherein, p=2,3,
4 ... .N, N are the natural number more than or equal to 2；
Higher two code characters of repetitive rate in the character-coded data are respectively defined as digital " 0 " and number " 1 ",
It is replaced per 8 adjacent bit digitals by a digital group with hexadecimal number, and the character-coded data is recompiled；Its
In, the code character of the interlude of the character-coded data less than 8 with " 0 " polishing, the character-coded data
The code character of tail end remaining unchanged less than 8.
2. processing method as described in claim 1, which is characterized in that further include using the character-coded data as infrared word
The content storage for according with the data segment of code storage data, stores each classification data value as the infrared character code
The content of the parsing section of data stores；Wherein, each classification data value it is described parsing section in put in order with it is described
Stored sequencing is consistent for the first time for each code character in data segment.
3. processing method as claimed in claim 2, which is characterized in that further include being saved in each described code character
Make an at time it is corresponding count is incremented, according to each respective preservation number of code character and corresponding classification
The sum of products of data value determines the total duration value and carrier value of the infrared signal, by the total duration value and the carrier wave
Value is stored in the parsing section end of the infrared character code storing data.
4. processing method as claimed in claim 2, which is characterized in that further include in the infrared character code storing data
Record includes key title by strong data segment.
5. processing method as claimed in claim 2, which is characterized in that further include in the infrared character code storing data
Record includes the additional information data section of brand manufacturers and device model.
6. processing method as described in claim 1, which is characterized in that the code character is English alphabet or number.
7. a kind of processing unit of infrared data characterized by comprising
Receiving unit, the infrared signal sent for receiving infrared sending device, in the data waveform for obtaining the infrared signal
The pulse width values of first data waveform, the data waveform include high level pulse and low level pulse；And it uses
In the pulse width values for sequentially obtaining the data waveform in the infrared signal after first data waveform；
Taxon, for using the pulse width values got for the first time as first classification data value；And
The each institute of presently described pulse width values respectively with the classification data value of pth -1 and before for judging to get
The absolute value of the difference of classification data value is stated whether in predetermined threshold range, if so, presently described pulse width values are returned
Category is the classification data value of the absolute value of difference in the predetermined threshold range, if not, it is determined that presently described pulse
Width value is p-th of classification data value；Wherein, p=2,3,4 ... .N, N are the natural number more than or equal to 2；
Processing unit, for first classification data value to be assigned to first code character, in character-coded data
Save first code character；And the presently described pulse width values that get of taxon judgement respectively with
The absolute value of the difference of the classification data value of pth -1 and each classification data value before is in the predetermined threshold range
When interior, replaced with the code character of classification data value institute assignment of the absolute value of difference in the predetermined threshold range
For being stored in the character-coded data after presently described pulse width values；And it is got in taxon judgement
Presently described pulse width values each classification data value respectively with the classification data value of pth -1 and before difference
Absolute value not in the predetermined threshold range when, after substituting presently described pulse width values with p-th of code character
It is stored in the character-coded data；Higher two code characters of repetitive rate in the character-coded data is fixed respectively
Justice is digital " 0 " and number " 1 ", is replaced per 8 adjacent bit digitals by a digital group with hexadecimal number, and compile to the character
Code data are recompiled；Wherein, the code character of the interlude of the character-coded data less than 8 with " 0 "
Polishing, the code character the remaining unchanged less than 8 of the character-coded data tail end.
8. processing unit as claimed in claim 7, which is characterized in that the processing unit is also used to the character code
Data are stored as the content of the data segment of infrared character code storing data, using each classification data value as described red
The content of the parsing section of outer character code storing data stores；Wherein, each classification data value is in the parsing section
Putting in order, stored sequencing is consistent for the first time with the code character each in the data segment.
9. processing unit as claimed in claim 8, which is characterized in that the receiving unit is also used to: in each volume
Code character make when being saved one time it is corresponding count is incremented, according to each respective preservation number of code character and respectively it is right
The sum of products for the classification data value answered determines the total duration value and carrier value of the infrared signal；
The processing unit is also used to for the total duration value and the carrier value being stored in the infrared character code storage number
According to parsing section end.
10. processing unit as claimed in claim 8, which is characterized in that the processing unit is also used in the infrared character
Record includes key title by strong data segment in code storage data.
11. processing unit as claimed in claim 8, which is characterized in that the processing unit is also used in the infrared character
Record includes the additional information data section of brand manufacturers and device model in code storage data.
12. processing unit as claimed in claim 7, which is characterized in that the code character is English alphabet or number.
13. a kind of coding/decoding method of infrared data is obtained for parsing using processing method as claimed in any one of claims 1 to 6
The character-coded data arrived characterized by comprising
Successively obtain the code character in the character-coded data；
Using the corresponding classification data value of the code character as the pulse width values, according to the coded word of acquisition
The arrangement position in the character-coded data is accorded with, the pulse width values are converted into high level pulse or low level pulse
Output.
14. coding/decoding method as claimed in claim 13, which is characterized in that described successively to obtain in the character-coded data
The code character, further includes:
Obtain the hexadecimal number in the character-coded data recompiled with digital " 0 " and digital " 1 ", solution
It analyses the hexadecimal number and the code character obtained is determined according to each that parsing obtains.
15. coding/decoding method according to claim 13 or 14, which is characterized in that described successively to obtain the character-coded data
In the code character before, successively obtain the classification data value stored in the infrared character code storing data；
After the code character successively obtained in the character-coded data, existed according to each classification data value
Stored sequencing is consistent corresponding for the first time with the code character each in data segment for putting in order in parsing section
Relationship determines the corresponding classification data value of the code character.
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| CN106530769A (en) * | 2016-10-27 | 2017-03-22 | 晋城市通平交通科技有限公司 | Solar road warning light and electric wave time synchronization signal decoding method |
| CN107945477A (en) * | 2017-11-10 | 2018-04-20 | 深圳睿舍智能科技有限公司 | The method and device that infrared or wireless remote control signals data are compressed |
| CN109637111B (en) * | 2018-12-25 | 2020-08-28 | 歌尔科技有限公司 | Infrared signal compression method and device, user equipment and storage medium |
| CN109523772B (en) * | 2018-12-29 | 2021-10-12 | 东莞钜威动力技术有限公司 | Voltage data transmission method, device, terminal and storage medium |
| CN112071052A (en) * | 2019-09-06 | 2020-12-11 | 超级智慧家(上海)物联网科技有限公司 | Infrared repeater system, infrared repeater and data learning method thereof |
| CN111260854B (en) * | 2020-03-10 | 2022-02-15 | 深圳来电科技有限公司 | Circuit and method for improving infrared identification sensitivity and mobile power supply leasing equipment |
| CN113850988B (en) * | 2020-12-24 | 2022-09-27 | 广东朝歌智慧互联科技有限公司 | Key value correction method, device, equipment and computer readable medium |
| CN112330948B (en) * | 2021-01-04 | 2021-04-27 | 杭州涂鸦信息技术有限公司 | Infrared remote control code matching method and device, computer equipment and readable storage medium |
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