CN109872522A - The algorithm that infrared code is decompressed based on sample index - Google Patents
The algorithm that infrared code is decompressed based on sample index Download PDFInfo
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Abstract
Invention provides a kind of algorithm decompressed based on sample index to infrared code, including a, filter code: logical filtering code formula obtained filter data N, obtained infrared absorption filter code data；B, hexadecimal data and little endian mode are converted into；C, sample yardage group and number of samples are obtained；D, compressing and converting sample code；E, the compressed code of splicing tape compressing information: final compressed code character string=reservation data (being fixed as " 00 ")+number of samples+sample yardage group+compressing and converting code；F, decompression algorithm is exactly the inverse operation to e to a.The length of transmission data can be shortened, largely after compression processing to reduce the bandwidth consumption and transmission speed when network transmission.Its effect is similar to video and neglects frequency file relatively by the formation of certain decompression algorithm come to reduce transmission consumption and memory space.
Description
Technical field
The invention belongs to smart home infrared data transmission fields, are specifically related to one kind based on sample index to infrared code
The algorithm of decompression.
Background technique
Generally existing receivable infrared data and the household electrical appliance controlled in resident family, such as: TV, air-conditioning, intelligence
Energy TV box etc..Infrared waves are sent by the Microsecond grade time by low and high level, and we term it infrared radiation sources for this combination
Code, such as the infrared source code of Huawei's intelligence box power button are as follows: 9019,4497,578,558,579,1694,578,558,
578,558,578,1694,578,1694,578,558,578,1694,578,1694,579,557,578,1694,578,
1694,578,558,578,558,578,1694,578,558,578,558,578,558,578,1695,578,1694,578,
1694,578,558,578,1695,578,1694,578,1694,578,1695,578,558,578,558,578,558,578,
1695,578,558,578,554,577,39486,9017,2242,577,96056.When infrared receiving set receives infrared radiation source
After code, according to protocol, corresponding function is executed.
For infrared source code according to the difference of factory settings, length is also different, the longest infrared source code being currently known according to
Character calculating reaches 2365 characters, 644 infrared waves.Uncompressed source code data can consume excessive when passing through network transmission
Resource.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention provides one kind to compress infrared source code, shortens and passes
The infrared source code compression algorithm of transmission of data length.
The technical solution adopted by the present invention are as follows: based on the algorithm that sample index decompresses infrared code, include the following steps:
A, it filters code: some infrared waves data M is filtered, logical filtering code formula obtained filter data N, obtained infrared absorption filter
Code data；
B, hexadecimal data and little endian mode are converted into: infrared absorption filter code data are converted into hexadecimal format,
Each data are indicated using the hexadecimal of double byte, carry out cover using 0 in preamble bit if insufficient double byte, also
It is to obtain hexadecimal data from 0000 to FFFF；Then hexadecimal data is converted into little endian mode, i.e., front two is with after
Two exchanges, obtain little endian mode data；
C, sample yardage group and number of samples are obtained: since little endian mode data are all that high level with low level replaces
Existing, i.e. first little endian mode data are high level, second little endian mode data is low level, third little endian mode data
It is low level ... and so on for high level, the 4th little endian mode data, by the number of low and high level in little endian mode data
According to being one group, that is, first little endian mode data is high level, second little endian mode data is low level, and merging becomes
First group, third little endian mode data are high level, the 4th little endian mode data are low level, and merging becomes second
Group ... and so on obtains low and high level data, then therefrom conclude and extract all different data until obtaining last group
As sample code, all sample code collections are combined into sample yardage group, and the sample code number in sample yardage group is number of samples；Sample
The call number of sample code is indicated with hexadecimal data from 0 to F in yardage group；
D, compressing and converting sample code: adjacent identical low and high level data obtain the reduced rule of single group compressed code are as follows: single group
Compressed code is made of two numbers, and first digit is expressed as the call number of sample code, and second digit indicates this from 0 to F
The number that adjacent identical low and high level data need to send；The permutation and combination of all single group compressed codes is compressing and converting code；
E, the compressed code of splicing tape compressing information: final compressed code character string=reservation data (being fixed as " 00 ")+sample
Number+sample yardage group+compressing and converting code；
F, decompress: decompression algorithm is exactly the inverse operation to e to a.
Further, code formula is filtered in the step a are as follows: N=round (M/200.0) * 200.
Further, in the step d, if the number of adjacent identical low and high level data is more than 15, F is arrived using 0
The mode of superposition indicates；That is single group compressed code=sample code call number+" F "+sample code call number+" (for needing to send
Several -15) corresponding hexadecimal notation ", and so on.
It further, is 65530 by its mandatory modification if N is greater than 65535 in the step a.
Further, number of samples requires to be no more than 16 in the step c.
What the present invention obtained has the beneficial effect that the also known as uncommon sub- algorithm of sample index algorithm SIA.Based on sample index to infrared
The algorithm of code decompression is transmitted in a network after infrared source code is carried out compression processing, then the solution before infrared transmitter emits
It is pressed into infrared source code to be emitted, to achieve the purpose that remote control home electrical appliance.Infrared source code is longer, after compression processing
The length of transmission data can be shortened, largely to reduce the bandwidth consumption and transmission speed when network transmission.Its effect is similar to
Video neglects frequency file relatively by the formation of certain decompression algorithm come to reduce transmission consumption and memory space.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.
Based on the algorithm that sample index decompresses infrared code, include the following steps:
A, it filters code: some infrared waves data M is filtered, lead to filtering code formula N=round (M/
200.0) * 200 filter data N was obtained；If N is greater than 65535, it is 65530 by its mandatory modification, obtains infrared absorption filter code data；
B, hexadecimal data and little endian mode are converted into: infrared absorption filter code data are converted into hexadecimal format,
Each data indicate that insufficient double byte then carrys out cover using 0 in preamble bit using the hexadecimal of double byte, that is,
From 0000 to FFFF, hexadecimal data is obtained；Hexadecimal data is so converted into little endian mode, i.e., rear front two and rear two
Position exchanges, and obtains little endian mode data；
C, sample yardage group and number of samples are obtained: as soon as be group by the data of low and high level in little endian mode data,
Be first little endian mode data be high level, second little endian mode data is low level, merging becomes first group, third
Little endian mode data are high level, the 4th little endian mode data are low level, and merging becomes second group ... and so on, directly
To last group is obtained, sample code is obtained, then therefrom concludes and extracts all different data, as sample yardage group, sample code
Sample code number in array is number of samples；The call number hexadecimal data of sample code is from 0 to F table in sample yardage group
Show；
D, compressing and converting sample code: adjacent identical sample code obtains the reduced rule of single group compressed code are as follows: single group compressed code
Be made of two numbers, first digit is expressed as the call number of sample code, second digit indicated from 0 to F this it is adjacent and
Identical sample code needs the number sent；The permutation and combination of all single group compressed codes is compressing and converting code；It is adjacent if they are the same
When the number of sample code is more than 15, indicated by the way of 0 to F superposition；I.e. single group compressed code=sample code call number+
" F "+sample code call number+" (number -15 for needing to send) corresponding hexadecimal notation ", and so on；
E, the compressed code of splicing tape compressing information: final compressed code character string=reservation data (being fixed as " 00 ")+sample
Number+sample yardage group+compressing and converting code；
F, decompress: decompression algorithm is exactly the inverse operation to e to a.
According to infrared code recognition rule, source code data can be supported to float up and down the offsets of 100 microseconds.
Embodiment 1
The infrared code source code of Huawei's box power supply are as follows:
9019,4497,578,558,579,1694,578,558,578,558,578,1694,578,1694,578,558,
578,1694,578,1694,579,557,578,1694,578,1694,578,558,578,558,578,1694,578,558,
578,558,578,558,578,1695,578,1694,578,1694,578,558,578,1695,578,1694,578,
1694,578,1695,578,558,578,558,578,558,578,1695,578,558,578,554,577,39486,
9017,2242,577,96056。
A, it filters code: infrared code source code data (M) inconsistent each other is filtered into filter code data (N) identical as far as possible.Its
If infrared code source code data have been more than 96056 uniformly to become 65530 (it is found through experiment that 20000 in 65535, such as case in
It is an effect to 99999).
Filter code formula are as follows: N=round (M/200.0) * 200, such as bring formula into for 9019 and obtain 9000.
Red outer code data after filtering code are as follows:
9000,4400,600,600,600,1600,600,600,600,600,600,1600,600,1600,600,600,
600,1600,600,1600,600,600,600,1600,600,1600,600,600,600,600,600,1600,600,600,
600,600,600,600,600,1600,600,1600,600,1600,600,600,600,1600,600,1600,600,
1600,600,1600,600,600,600,600,600,600,600,1600,600,600,600,600,600,39400,
9000,2200,600,65530；
B, hexadecimal data and little endian mode are converted into:
Each data are converted into hexadecimal representation, such as 9000 are converted to 2328.If number is namely less than 4096
FFF then supplements 0 in preamble bit, is 0FFF, such as 600 are converted to 0258.
Little endian mode, front two and rear two exchanges are converted data to, such as: 2328 are converted to 2823,0258 conversion
It is 5802.
By conversion, data are obtained are as follows:
2823,3011,5802,5802,5802,4006,5802,5802,5802,5802,5802,4006,5802,
4006,5802,5802,5802,4006,5802,4006,5802,5802,5802,4006,5802,4006,5802,5802,
5802,5802,5802,4006,5802,5802,5802,5802,5802,5802,5802,4006,5802,4006,5802,
4006,5802,5802,5802,4006,5802,4006,5802,4006,5802,4006,5802,5802,5802,5802,
5802,5802,5802,4006,5802,5802,5802,5802,5802,E899,2823,9808,5802,FAFF；
C, sample yardage group and number of samples are obtained:
Since little endian mode data are all that high level is alternately present with low level, i.e. first little endian mode data are high electricity
Flat, second little endian mode data are low level, third little endian mode data are high level, the 4th little endian mode data are
The data of low and high level in little endian mode data are one group by low level ... and so on, that is, first little endian mode
Data are high level, second little endian mode data is low level, and merging becomes first group, and third little endian mode data are height
Level, the 4th little endian mode data are low level, and merging becomes second group ... and so on, until obtaining last group,
Obtain low and high level data；
28233011,58025802,58024006,58025802,58025802,58024006,58024006,
58025802,58024006,58024006,58025802,58024006,58024006,58025802,58025802,
58024006,58025802,58025802,58025802,58024006,58024006,58024006,58025802,
58024006,58024006,58024006,58024006,58025802,58025802,58025802,58024006,
58025802,58025802,5802E899,28239808,5802FAFF；
It therefrom concludes again and extracts all different data as sample code, all sample code collections are combined into sample yardage group, sample
Sample code number in this yardage group is number of samples；The call number hexadecimal data of sample code is from 0 in sample yardage group
It is indicated to F, number of samples rigid requirement is no more than 16 herein；
28233011,58025802,58024006,5802E899,28239808,5802FAFF；
Number of samples is 06, and call number is 0,1,2,3,4,5 respectively.
D, compressing and converting sample code:
Low and high level data are compressed according to sample code, that is, describe low and high level number using compressed format
According to if previous group low and high level data, as later group low and high level data, the cumulative mode of the number that then be used directly describes.
Such as: 28233011 are compressed to 01, represent index and occur 1 time as 0 sample code (28233011).
It can obtain compressed code are as follows:
011121122211221122122113231124132112314151
E, the compressed code of splicing tape compressing information:
Final infrared compressed code=reservation data (it is fixed as " 00 ")+number of samples (" 06 ")+sample code (" 28233011
58025802580240065802E899282398085802FAFF ")+compressing and converting code (" 011121122211221122122
113231124132112314151“)
Therefore final infrared compressed code are as follows:
00062823301158025802580240065802E899282398085802FAFF0111211222112211
22122113231124132112314151
F, decompress: decompression algorithm is exactly the inverse operation to compression algorithm.
Embodiment 2
The infrared source code of certain key of the tune of certain air-conditioning:
420,440,420,440,420,440,420,440,420,440,420,25200,3500,1750,420,1300,
420,440,420,440,420,440,420,1300,420,440,420,440,420,440,420,440,420,1300,
420,440,420,1300,420,1300,420,440,420,1300,420,1300,420,1300,420,1300,420,
1300,420,440,420,440,420,1300,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,1300,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,1300,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,1300,420,440,420,440,420,1300,420,440,420,440,
420,34700,3500,1700,420,1300,420,440,420,440,420,440,420,1300,420,440,420,
440,420,440,420,440,420,1300,420,440,420,1300,420,1300,420,440,420,1300,420,
1300,420,1300,420,1300,420,1300,420,440,420,440,420,1300,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,1300,420,440,420,440,420,
1300,420,1300,420,1300,420,440,420,440,420,440,420,1300,420,440,420,1300,420,
1300,420,1300,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,1300,420,440,420,
1300,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
1300,420,1300,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,1300,420,1300,420,440,420,440,420,440,420,440,420,
440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,1300,420,1300,420,440,420,440,420,440,420,440,
420,1300,420,1300,420,440,420,440,420,440,420,440,420,440,420,440,420,440,
420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,440,420,
440,420,1300,420,1300,420,1300,420,1300,420,1300,420,1300,420,1300,420,1000
A, the red outer code data after code is filtered are as follows:
400,400,400,400,400,400,400,400,400,400,400,25200,3600,1800,400,1400,
400,400,400,400,400,400,400,1400,400,400,400,400,400,400,400,400,400,1400,
400,400,400,1400,400,1400,400,400,400,1400,400,1400,400,1400,400,1400,400,
1400,400,400,400,400,400,1400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,1400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,1400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,1400,400,400,400,400,400,1400,400,400,400,400,
400,34800,3600,1800,400,1400,400,400,400,400,400,400,400,1400,400,400,400,
400,400,400,400,400,400,1400,400,400,400,1400,400,1400,400,400,400,1400,400,
1400,400,1400,400,1400,400,1400,400,400,400,400,400,1400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,1400,400,400,400,400,400,
1400,400,1400,400,1400,400,400,400,400,400,400,400,1400,400,400,400,1400,400,
1400,400,1400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,1400,400,400,400,
1400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
1400,400,1400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,1400,400,1400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,1400,400,1400,400,400,400,400,400,400,400,400,
400,1400,400,1400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,400,
400,400,1400,400,1400,400,1400,400,1400,400,1400,400,1400,400,1400,400,1000
B, hexadecimal data and little endian mode are converted into:
Little endian mode data:
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,7062,100E,
0807,9001,7805,9001,9001,9001,9001,9001,9001,9001,7805,9001,9001,9001,9001,
9001,9001,9001,9001,9001,7805,9001,9001,9001,7805,9001,7805,9001,9001,9001,
7805,9001,7805,9001,7805,9001,7805,9001,7805,9001,9001,9001,9001,9001,7805,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,7805,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,7805,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,7805,9001,9001,9001,9001,
9001,7805,9001,9001,9001,9001,9001,F087,100E,0807,9001,7805,9001,9001,9001,
9001,9001,9001,9001,7805,9001,9001,9001,9001,9001,9001,9001,9001,9001,7805,
9001,9001,9001,7805,9001,7805,9001,9001,9001,7805,9001,7805,9001,7805,9001,
7805,9001,7805,9001,9001,9001,9001,9001,7805,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,7805,9001,9001,9001,9001,9001,7805,9001,7805,9001,7805,9001,9001,9001,
9001,9001,9001,9001,7805,9001,9001,9001,7805,9001,7805,9001,7805,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,7805,9001,9001,
9001,7805,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,7805,9001,7805,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,7805,9001,7805,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,7805,9001,7805,9001,
9001,9001,9001,9001,9001,9001,9001,9001,7805,9001,7805,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,9001,
9001,7805,9001,7805,9001,7805,9001,7805,9001,7805,9001,7805,9001,7805,9001,
E803
C, sample yardage group and number of samples are obtained:
Low and high level data: 90019001,90019001,90019001,90019001,90019001,90017062,
100E0807,90017805,90019001,90019001,90019001,90017805,90019001,90019001,
90019001,90019001,90017805,90019001,90017805,90017805,90019001,90017805,
90017805,90017805,90017805,90017805,90019001,90019001,90017805,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90017805,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90017805,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90017805,90019001,90019001,90017805,90019001,
90019001,9001F087,100E0807,90017805,90019001,90019001,90019001,90017805,
90019001,90019001,90019001,90019001,90017805,90019001,90017805,90017805,
90019001,90017805,90017805,90017805,90017805,90017805,90019001,90019001,
90017805,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90017805,90019001,90019001,90017805,90017805,
90017805,90019001,90019001,90019001,90017805,90019001,90017805,90017805,
90017805,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90017805,
90019001,90017805,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90017805,90017805,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90017805,90017805,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90017805,90017805,90019001,90019001,90019001,
90019001,90017805,90017805,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90019001,90019001,90019001,90019001,
90019001,90019001,90019001,90019001,90017805,90017805,90017805,90017805,
90017805,90017805,90017805,9001E803
Statistics obtains sample yardage group are as follows:
90019001,90017062,100E0807,90017805,9001F087,9001E803；
Number of samples is 06, and call number is 0,1,2,3,4,5 respectively.
D, compressing and converting sample code:
By compression algorithm are as follows:
05112131033104310132013502310B310F0F0F0F06310F0F0F083102310241213103
3104310132013502310F03310233033101330E3101310F03320A320F023204320F023751；
E, the compressed code of splicing tape compressing information:
Finally compress infrared code are as follows:
00069001900190017062100E0807900178059001F0879001E8030511213103310431
0132013502310B310F0F0F0F06310F0F0F0831023102412131033104310132013502310F0331
0233033101330E3101310F03320A320F023204320F023751
Claims (5)
1. the algorithm decompressed based on sample index to infrared code, characterized by the following steps:
A, it filters code: some infrared waves data M is filtered, logical filtering code formula obtained filter data N, obtained infrared absorption filter yardage
According to；
B, hexadecimal data and little endian mode are converted into: infrared absorption filter code data being converted into hexadecimal format, each
Data are all indicated using the hexadecimal of double byte, carry out cover using 0 in preamble bit if insufficient double byte, that is, from
0000 arrives FFFF, obtains hexadecimal data；Then hexadecimal data is converted into little endian mode, i.e. front two and two latter
It exchanges, obtains little endian mode data；
C, sample yardage group and number of samples are obtained: since little endian mode data are all that high level is alternately present with low level, i.e.,
First little endian mode data is high level, second little endian mode data is low level, third little endian mode data are high
Level, the 4th little endian mode data are low level ... and so on, and the data by low and high level in little endian mode data are
One group, that is, first little endian mode data is high level, second little endian mode data is low level, merging becomes first
Group, third little endian mode data are high level, the 4th little endian mode data are low level, merge become second group ... with
This analogizes, and until obtaining last group, obtains low and high level data, then therefrom conclude and extract all different data as sample
Code, all sample code collections are combined into sample yardage group, and the sample code number in sample yardage group is number of samples；In sample yardage group
The call number of sample code is indicated with hexadecimal data from 0 to F；
D, compressing and converting sample code: adjacent identical low and high level data obtain the reduced rule of single group compressed code are as follows: single group compression
Code is made of two numbers, and first digit is expressed as the call number of sample code, and second digit indicates that this is adjacent from 0 to F
Identical low and high level data need the number sent；The permutation and combination of all single group compressed codes is compressing and converting code；
E, the compressed code of splicing tape compressing information: final compressed code character string=reservation data (being fixed as " 00 ")+number of samples+
Sample yardage group+compressing and converting code；
F, decompress: decompression algorithm is exactly the inverse operation to e to a.
2. the algorithm decompressed according to claim 1 based on sample index to infrared code, it is characterised in that: the step a
Middle filter code formula are as follows: N=round (M/200.0) * 200.
3. the algorithm decompressed according to claim 1 based on sample index to infrared code, it is characterised in that: the step d
In, if the number of adjacent identical low and high level data is more than 15, indicated by the way of 0 to F superposition；I.e. single group is compressed
The call number of code=sample code+" F "+sample code call number+" (number -15 for needing to send) corresponding hexadecimal notation ",
And so on.
4. the algorithm decompressed according to claim 1 based on sample index to infrared code, it is characterised in that: the step a
In, it is 65530 by its mandatory modification if N is greater than 65535.
5. the algorithm decompressed according to claim 1 based on sample index to infrared code, it is characterised in that: the step c
Middle number of samples requires to be no more than 16.
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