CN103745252A - Coding line, two-dimensional coding method and two-dimensional decoding method - Google Patents
Coding line, two-dimensional coding method and two-dimensional decoding method Download PDFInfo
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Abstract
The invention discloses a coding line, which comprises data information codes, classification processing information codes, classification processing position information codes and check information codes. The data information codes are at least divided into a first group of data information codes and a second group of data information codes according to classification processing range information codes. Since the coding line is provided with the classification processing information codes and the classification processing position information codes, the coding line can select to perform classification processing to the data information codes in the coding line or not according to the classification processing information codes, so as to realize different combination types of classification processing of the data information codes. The invention additionally discloses a two-dimensional coding method and a two-dimensional decoding method.
Description
Technical field
The present invention relates to a kind of coding row, Quick Response Code coding method and Quick Response Code coding/decoding method.
Background technology
Along with for example thering is the smart mobile phone of scanning device, the mobile terminal of panel computer universal, two-dimensional bar has been widely used in the different field such as commodity circulation, the management of identity numbering, brand message popularization.On existing bill, for example, on train ticket, be provided with the personal information that bar code records ticket holder, can all information of this bar code be all read out by different scanning devices, facilitate the ticket checking of railroad.The application of two-dimensional bar has certain superiority, but owing to can utilizing a kind of mode just can read all decoding of information, and in ticketing service or variously need to number the region of management and control to identity, level security is inadequate.
Summary of the invention
Based on this, the invention reside in the defect that overcomes prior art, a kind of coding row, Quick Response Code coding method and Quick Response Code coding/decoding method are provided.
Its technical scheme is as follows:
A kind of coding row, comprise data message coding, also comprise classification process information coding, classify and process positional information coding and check information coding, described data message coding is at least divided into first group of data message coding and second group of data message coding according to the process range information coding of classifying.
Because coding row have classification process information coding and classify and process positional information coding, therefore whether described coding row can be according to classification process information codes selection to the processing of classifying of the data message coding in coding row, also can according to classifying, process positional information coding simultaneously data message coding is carried out to the grouping of diverse location, thereby realize the classification processing of the various combination form of data message coding.
A Quick Response Code coding method, comprises the following steps:
S1: the instruction of according to whether, data being carried out to information classification processing generates classification process information coding; According to packet positional information, generate classification and process positional information coding;
S2: raw data is at least divided into first group of data and second group of data according to classification process information coding and classification processing positional information coding, first group of data changed into first group of data message coding with first category sequence of algorithms, second group of data changed into second group of data message coding with the second classification sequence of algorithms, described first group of data message coding and the synthetic data message coding of second group of data message code set;
S3: described second group of data and code data are generated to check information data with the 3rd classification algorithm, check information data turn to check information coding with the second classification sequence of algorithms, described classification process information coding, classification are processed to positional information coding, data message coding and check information coding and be merged into coding row;
S4: convert coding row to 2 D code information module.
Due to classification process information coding and classification, processing positional information coding is respectively that instruction and the packet positional information of according to whether, data being carried out to information classification processing generates, and raw data is to be divided at least the first group data and second group of data according to classification process information coding and classification processing positional information coding, therefore can be according to different demands, raw data is carried out to the packet classification of multiple combination and process, improved alternative and flexibility ratio that data encoding is processed.Due to the data of different grouping are encoded by different classes of algorithm, therefore improved widely the degree of difficulty that copies of 2 D code information module again.
Further, described classification process information is encoded to block encryption process information coding, the packet positions information coding that positional information is encoded to raw data is processed in described classification, described raw data is divided into described first group of data and second group of data according to the position of packet positions information coding appointment, described first group of data are expressly, second group of data is ciphertext, described first, two, three classification algorithms are scrambled algorithm, by adopting scrambled algorithm, improved the confidentiality of raw data.Because described check information coding code data and second group of data generate check information data with the 3rd classification algorithm, check information data turn to check information coding with the second classification sequence of algorithms, this check information coding is by the two assembly coding of code data and second group of data, it is high without code breaking difficulty that therefore described check information is encoded, thereby further improve the confidentiality of raw data.
Further, the step S4 of described Quick Response Code coding method specifically comprises the following steps:
The instruction that according to whether, data is split to resume module generates and splits resume module information coding;
According to splitting resume module information coding, the coding of coding row corresponding position is done at least two different module marks;
According to module marks, the code conversion in coding row with same module marks is become at least two 2 D code information submodules with module marks.
Realize the detachable of 2 D code information module, thereby 2 D code information submodule can be laid in to different positions, further increased the degree of difficulty copying.
Further, according to module marks, the code conversion in coding row with same module marks is become after at least two 2 D code information submodules, also comprise that step pieces together described at least two 2 D code information submodules the step of 2 D code information module.
Further, described data are word, at least one in the multimedia files such as picture or audio frequency, video.
A Quick Response Code coding/decoding method, comprises step:
S1: reading 2 D code information module, is coding row by 2 D code information module converts;
S2: read classification process information coding, classification processing positional information coding, data message coding and check information coding from described coding row;
S3: process positional information coding according to classification process information coding, classification data message coding is divided into at least the first group data message coding and second group of data message coding;
S4: described the first data message coding row solution is translated to first group of data by first category algorithm, by the second classification algorithm, described the second coded message row solution is translated to second group of data and check information data, second group of data and encrypted message combination, according to the 3rd classification algorithm, generate check information data, the check information verification of data that reconciliation translates, data message is consistent, restores second group of raw data.
Further, described first, two, three classification algorithms are scrambled algorithm, first group of raw data is according to described step S4 direct-reduction, and first group of data is clear data, and second group of raw data is encrypt data, according to described step S4 need encrypted message and with decipher after second group of data according to the 3rd classification algorithm, generate check information data and compare decipher after check information data errorless, reduction on this basis.Described encrypted message can be inputted by instruments such as software carrier or hardware carriers.
Further, the step S1 of described Quick Response Code coding/decoding method specifically comprises the following steps:
Read at least two 2 D code information submodules with module marks;
According to module marks, described at least two 2 D code information submodules are pieced together to 2 D code information module in order.
Further, described step S4 is also, can input encrypted message by carrier, according to the 3rd classification algorithm, generate check information data with second group of data after decipher, with check information verification of data after decipher, on consistent basis, reduce second group of raw data, described carrier comprises the instruments such as software carrier or hardware carrier.
Further, the raw data that described solution translates is word, at least one in the multimedia files such as picture or audio frequency, video.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of Quick Response Code coding method described in the embodiment of the present invention.
Fig. 2 is the schematic flow sheet of Quick Response Code coding/decoding method described in the embodiment of the present invention.
Fig. 3 is the schematic diagram of coding row described in the embodiment of the present invention.
Description of reference numerals:
100, coding row, 10, classification process information coding, 20, classification processes positional information coding, 30, data message coding, 32, first groups of data messages codings, 34, second groups of data messages codings, 40, check information coding.
Embodiment
Below embodiments of the invention are elaborated:
As shown in Figure 1, Quick Response Code coding method of the present invention, comprises the following steps S1-S4:
S1: the instruction of according to whether, data being carried out to information classification processing generates classification process information coding; According to packet positional information, generate classification and process positional information coding.
Particularly, described classification process information is encoded to block encryption process information coding, and the packet positions information coding that positional information is encoded to raw data is processed in described classification.User according to demand, the instruction whether input will classify data and process, the block encryption process information that the coding method of this Quick Response Code comprises different information (be or no) according to the described instruction generation processed of whether data will classifys is encoded.Processings of need to classify if select, user more according to demand, the packet positional information that input need to be classified, comprises different information (number of packet, packet positions) classification processing positional information and encodes thereby generate.
S2: raw data is at least divided into first group of data and second group of data according to classification process information coding and classification processing positional information coding, first group of data changed into first group of data message coding with first category sequence of algorithms, second group of data changed into second group of data message coding with the second classification sequence of algorithms, described first group of data message coding and the synthetic data message coding of second group of data message code set.
Particularly, described raw data is word, at least one in the multimedia files such as picture or audio frequency, video.Storage information capacity is unrestricted, supports the typing simultaneously of different language release content.Described raw data is divided into described first group of data and second group of data according to the position of packet positions information coding appointment, and described the first, two classification algorithm is scrambled algorithm.By adopting scrambled algorithm, from prevent that bar code from copying the possibility of imitation, effectively improves the confidentiality of raw data the most at all.In the present embodiment, described packet positional information is positional information.For example, user inputs 2, M, that is to say data are divided into two groups, and the data before M position are first group of data, and the data that comprise M position after M position are second group of data.Then the data before M position are compiled into first group of data message coding with first category algorithm, the data after M position are changed into second group of data message coding with the second classification sequence of algorithms.Understandably, in another embodiment, user inputs 2, K, and Q that is to say data are divided into two groups, and the data that K position starts to comprise the common Q of calculating position, M position are second group of data, and remainder data is first group of data.That is to say that the 1st is first group of data to (K-1) position with the data after (K+Q) position, K position to the (K+Q) bit data is second group of data.
S3: described second group of data and code data are generated to check information data with the 3rd classification algorithm, check information data turn to check information coding with the second classification sequence of algorithms, described classification process information coding, classification are processed to positional information coding, data message coding and check information coding and be merged into coding row.
Particularly, after described check information coding code data and second group of data combination, coding forms.Because this check information coding is by the two assembly coding of code data and second group of data.For example, user inputs password for " 1234 ", described second group of data are " Monday ", and the coding method of this Quick Response Code is combined into " 2A " by " 1234 " and " Monday " two information through checking algorithms, then " 2A " are become to described check information coding with the 3rd classification algorithm.Owing to having comprised password in described check information coding, but be not merely by Cryptographic, to be formed, it is high without code breaking difficulty that therefore described check information is encoded, thereby further improve the confidentiality of raw data.
S4: convert coding row to 2 D code information module.
Particularly, described step S4 comprises:
S41: the instruction that according to whether, data is split to resume module generates and splits module information coding;
S42: according to splitting module information coding, the coding of coding row corresponding position is done at least two different module marks;
S43: according to module marks, the code conversion in coding row with same module marks is become at least two 2 D code information submodules with module marks;
S44: according to module marks, the coding in coding row with the different numerical digits of equal modules mark is assigned to respectively to different groups, convert different 2 D code information submodules to, realize the detachable of 2 D code information module, thereby 2 D code information submodule can be laid in to different positions, further increase the degree of difficulty copying.
Preferably, described step S4 also comprises sub-step S45: according to module marks, the code conversion in coding row with same module marks is become after at least two 2 D code information submodules, also comprise that step pieces together described at least two 2 D code information submodules the step of 2 D code information module.
Described coding is classified binary digit data as.Because described two-dimensional bar is actual, be binary digit data, when being converted to 2 D code information module, be, actually according to monochrome pixels, represent " 0 " and " 1 " in number of bits.Therefore, described 2 D code information module can expand and dwindle by corresponding proportion, does not affect normal information and reads.Understandably, described the first coded message row and the second coded message row also can adopt decimal system algorithm.Due to classification process information coding and classification, processing positional information coding is respectively that instruction and the packet positional information of according to whether, data being carried out to information classification processing generates, and raw data is to be divided at least the first group data and second group of data according to classification process information coding and classification processing positional information coding, therefore can be according to different demands, raw data is carried out to the packet classification of multiple combination and process, improved alternative and flexibility ratio that data encoding is processed.Due to the data of different grouping are encoded by different classes of algorithm, therefore improved widely the degree of difficulty that copies of 2 D code information module again.
As shown in Figure 2, Quick Response Code coding/decoding method of the present invention, comprises step:
S1: reading 2 D code information module, is coding row by 2 D code information module converts;
Particularly, read at least two 2 D code information submodules with module marks, according to module marks, described at least two 2 D code information submodules are pieced together to 2 D code information module in order.Because each 2 D code information submodule has module marks, even therefore step by step, read at intervals after two described 2 D code information submodules, two described 2 D code information submodules can rearrange according to the self-contained module marks having, thereby reduction 2 D code information module, and then convert coding row to.
S2: read classification process information coding, classification processing positional information coding, data message coding and check information coding from described coding row;
S3: process positional information coding according to classification process information coding, classification data message coding is divided into at least the first group data message coding and second group of data message coding;
S4: described the first data message coding row solution is translated to first group of data by first category algorithm, by the second classification algorithm, described the second coded message row solution is translated to second group of data and check information data, second group of data and encrypted message combination, according to the 3rd classification algorithm, generate check information data, the check information verification of data that reconciliation translates, data message is consistent, restores second group of raw data;
Further, described first, two, three classification algorithms are scrambled algorithm, first group of raw data is according to described step S4 direct-reduction, and first group of data is clear data, and second group of raw data is encrypt data, according to described step S4 need encrypted message and with decipher after second group of data according to algorithm, generate check information data and compare decipher after check information data errorless, reduction on this basis.Described encrypted message can be inputted by instruments such as software carrier or hardware carriers.
Because capacity is unrestricted, support picture to check, audio frequency, the large capacity information such as video and multimedia file decoding are checked, therefore can use easily Quick Response Code coding-decoding method of the present invention to transmit information.
As shown in Figure 3, coding row 100 of the present invention comprise classification process information coding 10, classification processing positional information coding 20, data message coding 30 and check information coding 40.Described data message coding 30 is at least divided into 32 and second groups of data message codings 34 of first group of data message coding according to classification process range information coding 20.Described classification process information coding 10, classification are processed positional information coding 20, data message coding 30 and check information coding 40 and can be arranged and form described coding row 100 with arbitrary arrangement order, putting in order in Fig. 3 belongs to putting in order in one of them embodiment of the present invention, and the sequence of each information coding in coding row 100 of the present invention is not construed as limiting.
Because coding row have classification process information coding 10 and classify and process positional information coding 20, therefore whether the described coding row 100 process information coding 10 of can classifying is selected the processing of classifying of the data message coding 30 in coding row 100, also can according to classifying, process positional information coding 20 simultaneously data message coding 30 is carried out to the grouping of diverse location, thereby realize the classification processing of the various combination form of data message coding 30.
The above embodiment has only expressed the specific embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (11)
1. a coding is listed as, comprise data message coding, it is characterized in that, also comprise classification process information coding, classify and process positional information coding and check information coding, described data message coding is at least divided into first group of data message coding and second group of data message coding according to the process range information coding of classifying.
2. a Quick Response Code coding method, is characterized in that, comprises the following steps:
S1: the instruction of according to whether, data being carried out to information classification processing generates classification process information coding; According to packet positional information, generate classification and process positional information coding;
S2: raw data is at least divided into first group of data and second group of data according to classification process information coding and classification processing positional information coding, first group of data changed into first group of data message coding with first category sequence of algorithms, second group of data changed into second group of data message coding with the second classification sequence of algorithms, described first group of data message coding and the synthetic data message coding of second group of data message code set;
S3: described second group of data and code data are generated to check information data with the 3rd classification algorithm, check information data turn to check information coding with the second classification sequence of algorithms, described classification process information coding, classification are processed to positional information coding, data message coding and check information coding and be merged into coding row;
S4: convert coding row to 2 D code information module.
3. Quick Response Code coding method as claimed in claim 2, it is characterized in that, described classification process information is encoded to block encryption process information coding, the packet positions information coding that positional information is encoded to raw data is processed in described classification, and described raw data is divided into described first group of data and second group of data according to the position of packet positions information coding appointment, and described first group of data are expressly, second group of data is ciphertext, described the first, two, three classification algorithms are scrambled algorithm.
4. the Quick Response Code coding method as described in claim 2-3 any one, is characterized in that, described step S4 specifically comprises the following steps:
The instruction that according to whether, data is split to resume module generates and splits resume module information coding;
According to splitting resume module information coding, the coding of coding row corresponding position is done at least two different module marks;
According to module marks, the code conversion in coding row with same module marks is become at least two 2 D code information submodules with module marks.
5. Quick Response Code coding method as claimed in claim 4, it is characterized in that, according to module marks, the code conversion in coding row with same module marks is become after at least two 2 D code information submodules, also comprise that step pieces together described at least two 2 D code information submodules the step of 2 D code information module.
6. the Quick Response Code coding method as described in claim 2-3 any one, is characterized in that, described raw data is word, at least one in the multimedia files such as picture or audio frequency, video.
7. a Quick Response Code coding/decoding method, is characterized in that, comprises step:
S1: reading 2 D code information module, is coding row by 2 D code information module converts;
S2: read classification process information coding, classification processing positional information coding, data message coding and check information coding from described coding row;
S3: process positional information coding according to classification process information coding, classification data message coding is divided into at least the first group data message coding and second group of data message coding;
S4: described the first data message coding row solution is translated to first group of data by first category algorithm, by the second classification algorithm, described the second coded message row solution is translated to second group of data and check information data, second group of data and encrypted message combination, according to the 3rd classification algorithm, generate check information data, the check information verification of data that reconciliation translates, data message is consistent, restores second group of raw data.
8. Quick Response Code coding/decoding method as claimed in claim 7, it is characterized in that, described first, two, three classification algorithms are scrambled algorithm, and first group of raw data is according to described step S4 direct-reduction, first group of data is clear data, second group of raw data is encrypt data, according to described step S4 need encrypted message and with decipher after second group of data according to algorithm, generate check information data and compare decipher after check information data errorless, reduction on this basis.
9. Quick Response Code coding/decoding method as claimed in claim 7 or 8, is characterized in that, described step S1 specifically comprises the following steps:
Read at least two 2 D code information submodules with module marks;
According to module marks, described at least two 2 D code information submodules are pieced together to 2 D code information module in order.
10. Quick Response Code coding/decoding method as claimed in claim 7 or 8, it is characterized in that, described step S4 is also, can input encrypted message by carrier, according to the 3rd classification algorithm, generate check information data with second group of data after decipher, with check information verification of data after decipher, on consistent basis, reduce second group of raw data, described carrier comprises software carrier or hardware carrier instrument.
11. Quick Response Code coding/decoding methods as described in claim 7-8 any one, is characterized in that, the raw data that described solution translates is word, at least one in the multimedia files such as picture or audio frequency, video.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067053A (en) * | 2016-05-27 | 2016-11-02 | 立德高科（昆山）数码科技有限责任公司 | Anti-counterfeiting mark and method for anti-counterfeit |
| CN106408065A (en) * | 2016-09-05 | 2017-02-15 | 成都天钥科技有限公司 | Two-dimensional code encoding method and apparatus |
| CN107016499A (en) * | 2017-03-23 | 2017-08-04 | 国家电网公司 | A kind of substation equipment patrol method recognized based on two-dimentional code encryption |
| CN108280500A (en) * | 2017-01-06 | 2018-07-13 | 百度在线网络技术（北京）有限公司 | Coding method, coding/decoding method, relevant apparatus and the equipment of Quick Response Code |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330972B1 (en) * | 1998-10-22 | 2001-12-18 | Intermec Ip Corporation | Error correction enhancement for code 93i and other machine-readable symbologies |
| CN1363995A (en) * | 2001-10-01 | 2002-08-14 | 肖祥省 | Coding character correctness check by difference in shape |
| CN101639899A (en) * | 2008-07-30 | 2010-02-03 | 华为技术有限公司 | Methods and devices for encoding and decoding two-dimension code and terminal |
| CN101840523A (en) * | 2009-03-20 | 2010-09-22 | 刘伟 | Iconic code-coding method and printing method, reading method and reading device thereof |
| CN102722737A (en) * | 2012-05-13 | 2012-10-10 | 河南大学 | Temper-proofing method of paper document |
| CN102916804A (en) * | 2012-08-28 | 2013-02-06 | 华南农业大学 | Two-dimension code coding and decoding method and device based on local color verification |
| CN103138881A (en) * | 2011-11-30 | 2013-06-05 | 北京东方广视科技股份有限公司 | Encoding and decoding method and encoding and decoding equipment |
-
2013
- 2013-12-27 CN CN201310744222.XA patent/CN103745252B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330972B1 (en) * | 1998-10-22 | 2001-12-18 | Intermec Ip Corporation | Error correction enhancement for code 93i and other machine-readable symbologies |
| CN1363995A (en) * | 2001-10-01 | 2002-08-14 | 肖祥省 | Coding character correctness check by difference in shape |
| CN101639899A (en) * | 2008-07-30 | 2010-02-03 | 华为技术有限公司 | Methods and devices for encoding and decoding two-dimension code and terminal |
| CN101840523A (en) * | 2009-03-20 | 2010-09-22 | 刘伟 | Iconic code-coding method and printing method, reading method and reading device thereof |
| CN103138881A (en) * | 2011-11-30 | 2013-06-05 | 北京东方广视科技股份有限公司 | Encoding and decoding method and encoding and decoding equipment |
| CN102722737A (en) * | 2012-05-13 | 2012-10-10 | 河南大学 | Temper-proofing method of paper document |
| CN102916804A (en) * | 2012-08-28 | 2013-02-06 | 华南农业大学 | Two-dimension code coding and decoding method and device based on local color verification |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067053A (en) * | 2016-05-27 | 2016-11-02 | 立德高科（昆山）数码科技有限责任公司 | Anti-counterfeiting mark and method for anti-counterfeit |
| CN106408065A (en) * | 2016-09-05 | 2017-02-15 | 成都天钥科技有限公司 | Two-dimensional code encoding method and apparatus |
| CN106408065B (en) * | 2016-09-05 | 2019-06-11 | 成都天钥科技有限公司 | A kind of two dimension code encoding method and device |
| CN108280500A (en) * | 2017-01-06 | 2018-07-13 | 百度在线网络技术（北京）有限公司 | Coding method, coding/decoding method, relevant apparatus and the equipment of Quick Response Code |
| CN107016499A (en) * | 2017-03-23 | 2017-08-04 | 国家电网公司 | A kind of substation equipment patrol method recognized based on two-dimentional code encryption |
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|---|---|
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