CN112990406B - Two-dimensional code generation and identification method and device capable of adding dynamic extended information - Google Patents
Two-dimensional code generation and identification method and device capable of adding dynamic extended information Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
- G06K7/1443—Methods for optical code recognition including a method step for retrieval of the optical code locating of the code in an image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1439—Methods for optical code recognition including a method step for retrieval of the optical code
- G06K7/1456—Methods for optical code recognition including a method step for retrieval of the optical code determining the orientation of the optical code with respect to the reader and correcting therefore
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/146—Methods for optical code recognition the method including quality enhancement steps
- G06K7/1473—Methods for optical code recognition the method including quality enhancement steps error correction
Abstract
The invention discloses a two-dimensional code generating and identifying method and a device capable of adding dynamic extended information, wherein the method comprises the following steps: collecting user requests of different time periods, and generating dynamic extended information based on the user requests of different time periods; acquiring the size of the dynamic extended information, and carrying out segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of code word sequences; calculating the code word sequence to generate an error correction code sequence, and arranging the code word sequence and the error correction code sequence to generate a request code; and arranging and laying out the request codes according to a layout rule, setting a mask for the request codes after arrangement and laying out, and generating the two-dimensional code. According to the method, the dynamic expansion information can be added into the two-dimensional code, so that the two-dimensional code is suitable for different application scenes, and the response and control difficulty of a user is simplified through the two-dimensional code added with the dynamic expansion information.
Description
Technical Field
The invention relates to the technical field of two-dimensional codes, in particular to a method and a device for generating and identifying a two-dimensional code capable of adding dynamic extended information.
Background
Currently, with the rapid popularization of smart phones, people live in the "Wangyang ocean" of two-dimensional codes, and the figure of the two-dimensional codes can be seen everywhere in newspapers, televisions, the Internet, coffee shops, supermarkets, subways and shopping malls. The two-dimensional code applied to the business scene is mostly generated based on the demand information in a current fixed time period, and cannot comprehensively reflect the dynamic information of the progress of a certain work and activity or the development and change condition of a certain event, so that the practicability of the two-dimensional code is reduced.
Moreover, in the development and change process of many jobs, activities and events, users are required to respond to dynamic information to perform corresponding operations. However, in practice, the user often cannot respond and control correctly in time due to the limitation of subjective and objective conditions. For example, for some elderly people, when watching smart tv programs, the user cannot respond to the change of the interactive screen interface to perform timely and correct operation.
Therefore, how to add dynamic extended information into a two-dimensional code makes the two-dimensional code suitable for different application scenarios, and simplifies the response and control difficulty of a user by adding the two-dimensional code of the dynamic extended information is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the foregoing problems, an embodiment of the present invention provides a two-dimensional code generating method capable of adding dynamic extended information, including:
collecting user requests of different time periods, and generating dynamic extended information based on the user requests of different time periods;
acquiring the size of the dynamic extended information, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences;
calculating the code word sequence to generate an error correction code sequence, and arranging the code word sequence and the error correction code sequence to generate a request code;
and arranging and laying out the request codes according to a layout rule, setting a mask for the request codes after arrangement and laying out, and generating the two-dimensional code.
In one embodiment, the collecting user requests of different time periods and generating dynamic extension information based on the user requests of different time periods includes:
collecting user requests of different time periods, and performing attribute segmentation on the user requests based on preset attributes to generate request attributes;
extracting a time period requested by the user, and constructing a matrix based on the time period and the request attribute;
and sequencing and connecting the user requests based on the matrix to generate dynamic extension information.
In one embodiment, the obtaining the size of the dynamic extension information, and performing partition coding on the dynamic extension information based on the size of the dynamic extension information to generate a plurality of codeword sequences includes:
acquiring the size of the dynamic extended information, comparing the size of the dynamic extended information with a preset size, and segmenting the dynamic extended information according to a comparison result to generate a plurality of request data;
reading the position of the request data, generating a request frame serial number, and packaging the request frame serial number and the frame header of the request data to generate a data frame;
and coding the data frame to generate a code word sequence.
In a second aspect, the present invention further provides a two-dimensional code identification method capable of adding dynamic extension information, including:
acquiring a two-dimensional code image, preprocessing the two-dimensional code image, and performing positioning correction on the preprocessed two-dimensional code image to generate a corrected two-dimensional code;
reading format information of the corrected two-dimensional code, acquiring a mask graph, and performing XOR processing by using the mask graph to generate a request code;
reading the symbol character requested to be encoded, generating the code word sequence and the error correction code sequence, and correcting the error of the request data in the code word sequence based on the error correction code sequence;
and decoding the corrected code word sequence to generate dynamic expansion information, and generating user instructions in different time periods based on the dynamic expansion information.
In one embodiment, the decoding the error-corrected codeword sequence to generate dynamic extension information, and generating user instructions for different time periods based on the dynamic extension information includes:
reading the code word sequence, acquiring a data frame, and judging whether the data frame is data needing to be received according to a frame header structure of the data frame; if the data frame is a file needing to be received, generating a plurality of request data based on the data frame;
reading a data frame sequence number, and combining the request data based on the data frame sequence number to generate the dynamic extended information;
and extracting a request attribute and a time period in the dynamic extended information based on a preset word meaning attribute, and matching the request attribute with the time period to generate user instructions of different time periods.
In a third aspect, the present invention further provides a two-dimensional code generating device capable of adding dynamic extended information, including:
the dynamic extended information generating module is used for acquiring user requests of different time periods and generating dynamic extended information based on the user requests of the different time periods;
the segmentation coding module is used for acquiring the size of the dynamic extended information, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences;
a request code generation module, configured to calculate the codeword sequence, generate an error correction code sequence, and arrange the codeword sequence and the error correction code sequence to generate a request code;
and the two-dimension code generating module is used for arranging and distributing the request codes according to a layout rule, setting a mask for the request codes after arrangement and distribution and generating the two-dimension code.
In one embodiment, the dynamic extended information generating module includes:
the attribute segmentation unit is used for collecting user requests of different time periods, performing attribute segmentation on the user requests based on preset attributes and generating request attributes;
the matrix construction unit is used for extracting the time period of the user request and constructing a matrix based on the time period and the request attribute;
and the sequencing connection unit is used for sequencing and connecting the user requests based on the matrix to generate dynamic extension information.
In one embodiment, the partition encoding module includes:
the request data generation unit is used for acquiring the size of the dynamic extended information, comparing the size of the dynamic extended information with a preset size, and segmenting the dynamic extended information according to a comparison result to generate a plurality of request data;
the encapsulation unit is used for reading the position of the request data, generating a request frame serial number, and encapsulating the request frame serial number and the frame header of the request data to generate a data frame;
and the coding unit is used for coding the data frame to generate a code word sequence.
In a fourth aspect, the present invention further provides a two-dimensional code identification device capable of adding dynamic extended information, including:
the positioning correction module is used for acquiring a two-dimensional code image, preprocessing the two-dimensional code image, positioning and correcting the preprocessed two-dimensional code image and generating a corrected two-dimensional code;
the XOR processing module is used for reading the format information of the corrected two-dimensional code, acquiring a mask graph, and carrying out XOR processing by using the mask graph to generate a request code;
the error correction module is used for reading the symbol characters requested to be encoded, generating the code word sequence and the error correction code sequence, and correcting the error of the request data in the code word sequence based on the error correction code sequence;
and the decoding module is used for decoding the corrected code word sequence to generate dynamic expansion information and generating user instructions in different time periods based on the dynamic expansion information.
In one embodiment, the decoding module includes:
the judging unit is used for reading the code word sequence, acquiring a data frame and judging whether the data frame is data needing to be received according to a frame header structure of the data frame; if the data frame is a file needing to be received, generating a plurality of request data based on the data frame;
the combination unit is used for reading a data frame serial number and combining the request data based on the data frame serial number to generate the dynamic extended information;
and the matching unit is used for extracting the request attribute and the time period in the dynamic extended information based on the preset word meaning attribute, matching the request attribute with the time period and generating user instructions of different time periods.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
according to the two-dimensional code generation method capable of adding dynamic extended information, provided by the embodiment of the invention, corresponding storage is carried out according to user requests with different data volumes, the maximum utilization of a storage space is realized, different user instructions can be integrated to generate dynamic extended information, different control instructions are implemented in different application scenes to control corresponding equipment at different time periods, integration of different control instructions is completed, the extended space of the two-dimensional code is increased, the user experience is improved, the response and control difficulty of a user is simplified by adding the two-dimensional code of the dynamic extended information, and the application scene of the two-dimensional code is expanded.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of a two-dimensional code generation method capable of adding dynamic extended information according to an embodiment of the present invention;
FIG. 2 is a flowchart of a step S101 provided in an embodiment of the present invention;
FIG. 3 is a flowchart of step S102 according to an embodiment of the present invention;
fig. 4 is a flowchart of a two-dimensional code identification method capable of adding dynamic extended information according to an embodiment of the present invention;
FIG. 5 is a flowchart of step S204 provided by the embodiment of the present invention;
fig. 6 is a block diagram of a two-dimensional code generating apparatus capable of adding dynamic extended information according to an embodiment of the present invention;
fig. 7 is a block diagram of a two-dimensional code recognition apparatus capable of adding dynamic extended information according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1, a method for generating a two-dimensional code capable of adding dynamic extension information according to an embodiment of the present invention includes: S101-S104;
s101, collecting user requests of different time periods, and generating dynamic extension information based on the user requests of the different time periods.
S102, obtaining the size of the dynamic expansion information, and carrying out segmentation coding on the dynamic expansion information based on the size of the dynamic expansion information to generate a plurality of code word sequences.
S103, calculating the code word sequence to generate an error correction code sequence, arranging the code word sequence and the error correction code sequence, and generating a request code.
Specifically, the error correction code sequence is generated by error correction coding a plurality of codeword sequences.
Specifically, the first frame of each codeword sequence is arranged in sequence, then the second pointer of each codeword sequence is arranged, and so on until all codeword sequences are arranged.
Further, the error correction code sequence is also arranged according to the arrangement mode of the code word sequence.
Further, the arranged error correcting code sequence is arranged behind the arranged code word sequence, the arrangement is completed, and the request code is generated.
And S104, arranging and laying the request codes according to a layout rule, setting a mask for the request codes after arrangement and laying out, and generating the two-dimensional code.
Specifically, the size of the request code is obtained, the check code is set based on the size of the request code, and the size of the request code and the check code are combined to generate the header data.
Further, the request code is embedded into a data area of the two-dimensional code, and the head data is embedded into a head area of the two-dimensional code.
Further, a mask is set on the request code which is well laid out, a two-dimensional code is generated, and the two-dimensional code is displayed on a screen of the user terminal.
In the embodiment, corresponding storage is performed according to user requests of different data volumes, the maximum utilization of storage space is realized, different user instructions can be integrated, dynamic extended information is generated, different control instructions are implemented at different time periods in different application scenes to control corresponding equipment, integration of different control instructions is completed, the extended space of the two-dimensional code is increased, user experience is improved, the response and control difficulty of a user are simplified through the two-dimensional code added with the dynamic extended information, and the application scene of the two-dimensional code is enlarged.
In an embodiment, referring to fig. 2, the collecting user requests of different time periods in step S101, and generating dynamic extension information based on the user requests of different time periods includes:
s1011, collecting user requests of different time periods, and performing attribute segmentation on the user requests based on preset attributes to generate request attributes.
Specifically, the user requests of different time periods are segmented based on preset attributes (including time attributes, place attributes, person attributes, destination attributes and the like); for example, the preset attributes are set as time, person and task based on word senses, the time in the extraction of the user request that the owner is allowed to pass between 7 and 8 is 7 to 8, the person is the owner, and the task is allowed to pass through the entrance guard.
Further, the segmentation may be performed according to different time periods and corresponding different user requests. For example, a user request is generated by collecting the viewing requirements of 7-point viewing news simulcast and 8-point viewing health-preserving program XXX of parents, and the user request is divided into 7-point viewing news simulcast and 8-point viewing XXX.
S1012, extracting the time period requested by the user, and constructing a matrix based on the time period and the request attribute.
Specifically, the time periods are sequentially arranged as a first column of the matrix, and the request attribute corresponding to the time period is used as a second column of the matrix.
And S1013, sequencing and connecting the user requests based on the matrix to generate dynamic extension information.
Specifically, the time periods and the request attributes are bound and then connected in sequence based on the front-back position relationship of the time periods, and user instructions of different time periods are generated.
In one embodiment, referring to fig. 3, the obtaining the size of the dynamic extended information in step S102, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences includes:
s1021, obtaining the size of the dynamic expansion information, comparing the size of the dynamic expansion information with a preset size, and segmenting the dynamic expansion information according to a comparison result to generate a plurality of request data.
Specifically, when the size of the dynamic extended information is smaller than a preset size, the size of the dynamic extended information conforms to the data size that can be accommodated by the two-dimensional code; when the size of the dynamic extended information is larger than the preset size, the size of the dynamic extended information exceeds the data volume that can be accommodated by the two-dimensional code, and in order to avoid data uncertainty, the dynamic extended information needs to be segmented based on the capacity of the two-dimensional code to generate a plurality of request data, wherein the size of the request data is smaller than or equal to the capacity of the two-dimensional code.
And S1022, reading the position of the request data, generating a request frame serial number, and encapsulating the request frame serial number and the frame header of the request data to generate a data frame.
Specifically, the number of coding symbols, the number of characters, and the end symbol are added after each data frame, and the number of bits is filled.
And S1023, encoding the data frame to generate a code word sequence.
Specifically, time data in the request data are extracted based on time attributes, a time difference between the request data is calculated according to the time data in every two request data, a time window is generated based on the time difference, the time window is sequentially embedded into the request data according to the position of the request data, and then a code word sequence is generated.
Based on the same inventive concept, referring to fig. 4, an embodiment of the present invention further provides a two-dimensional code identification method capable of adding dynamic extended information, including: S201-S204;
s201, collecting a two-dimension code image, preprocessing the two-dimension code image, positioning and correcting the preprocessed two-dimension code image, and generating a corrected two-dimension code.
Specifically, a camera is used for collecting a two-dimensional code image, the collected two-dimensional code image is subjected to graying processing, the two-dimensional code image subjected to graying processing is subjected to noise reduction by a median filtering algorithm, and a noise-reduced two-dimensional code image is generated.
Further, each pixel point in the two-dimensional code image after noise reduction is compared with a preset threshold, if the gray value of the pixel point is larger than the preset threshold, the pixel value is replaced by black, and otherwise, the pixel value is replaced by white.
Furthermore, four corners of the two-dimensional code image are positioned, a transformation matrix is generated by means of perspective transformation, the two-dimensional code image and the standard matrix are mapped one by one, actual coordinates of a square block at the upper left corner in the two-dimensional code image are obtained, and the actual coordinates of the square block at the upper left corner are multiplied by the transformation matrix to generate a corrected two-dimensional code.
S202, reading the format information of the corrected two-dimensional code, obtaining a mask graph, and performing XOR processing by using the mask graph to generate a request code.
S203, reading the symbol character requested to be encoded, generating the code word sequence and the error correction code sequence, and correcting the requested data in the code word sequence based on the error correction code sequence.
S204, decoding the corrected code word sequence to generate dynamic expansion information, and generating user instructions in different time periods based on the dynamic expansion information.
In one embodiment, referring to fig. 5, the decoding the error-corrected codeword sequence in step S204 to generate dynamic extended information, and generating user instructions for different time periods based on the dynamic extended information includes:
s2041, reading the code word sequence, acquiring a data frame, and judging whether the data frame is data needing to be received according to a frame header structure of the data frame; and if the data frame is a file needing to be received, generating a plurality of request data based on the data frame.
Specifically, the data frame is decapsulated, a request frame number is obtained, and whether the data frame is data to be received is judged according to the request frame number.
S2042, reading a data frame sequence number, and combining the request data based on the data frame sequence number to generate the dynamic extended information.
Specifically, the data frame is decoded, a data frame serial number is extracted, and a plurality of request data are sequenced and combined according to the data frame serial number; wherein, the data frame sequence number indicates the position of the request data in the dynamic extended information.
S2044, extracting the request attribute and the time period in the dynamic extended information based on the preset word meaning attribute, matching the request attribute with the time period, and generating user instructions of different time periods.
Specifically, the word meaning attribute is preset as time, time periods in the dynamic extended information are extracted based on the time, corresponding request attributes are inquired according to the time periods, and user instructions of different time periods are generated.
A two-dimensional code generation and identification method that can add dynamic extended information is described by the following embodiments.
Example 1:
when the application scene is access control, a user mobile phone end collects user identity information, access control codes (namely user access addresses or codes of visited persons), two-dimension code effective time and check strings, and generates dynamic extension information based on the information;
acquiring the size of the dynamic extended information, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences;
calculating the code word sequence to generate an error correction code sequence, and arranging the code word sequence and the error correction code sequence to generate a request code;
arranging and distributing the request codes according to a distribution rule, setting a mask for the request codes after arrangement and distribution, generating a two-dimensional code, and displaying the access control two-dimensional code by a user mobile phone end; (ii) a
Scanning the code by the access control equipment, preprocessing the two-dimensional code image, and performing positioning correction on the preprocessed two-dimensional code image to generate a corrected two-dimensional code;
reading format information of the corrected two-dimensional code, acquiring a mask graph, and performing XOR processing by using the mask graph to generate a request code;
reading the symbol character requested to be encoded, generating the code word sequence and the error correction code sequence, and correcting the error of the request data in the code word sequence based on the error correction code sequence;
decoding the corrected code word sequence to generate dynamic extended information, and generating user instructions in different time periods based on the dynamic extended information;
the entrance guard equipment carries out different management to the user of different time quantums based on user instruction to, entrance guard equipment can register user's identity information, access address or visited person, information such as access time to realize visitor registration or owner business turn over registration, thereby be convenient for realize safe, convenient, to user's noninterference property management.
Example 2:
when the application scene is relatively complex operations of the old people watching the smart television, regulating and controlling the fresh air system of the air conditioner and the like in families, the children and the children generate dynamic extension information based on user requests of the old people such as watching channels, watching time (or setting of air volume, temperature and air speed of the fresh air system) and the like;
acquiring the size of the dynamic extended information, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences;
calculating the code word sequence to generate an error correction code sequence, and arranging the code word sequence and the error correction code sequence to generate a request code;
arranging and laying out the request codes according to a layout rule, setting a mask for the request codes after arrangement and laying out, generating a two-dimensional code, and sending the two-dimensional code to a parent mobile phone;
after receiving the two-dimension code, the parent displays the two-dimension code at a television and a control panel device (a code scanning camera needs to be additionally arranged) of the smart home, or uses a camera accessed to a home gateway to scan the code and acquire a two-dimension code image, and the camera transmits the information analyzed in the two-dimension code to corresponding equipment;
the corresponding equipment preprocesses the two-dimension code image, and carries out positioning correction on the preprocessed two-dimension code image to generate a corrected two-dimension code;
reading format information of the corrected two-dimensional code, acquiring a mask graph, and performing XOR processing by using the mask graph to generate a request code;
reading the symbol character requested to be encoded, generating the code word sequence and the error correction code sequence, and correcting the error of the request data in the code word sequence based on the error correction code sequence;
decoding the corrected code word sequence to generate dynamic extended information, and generating user instructions in different time periods based on the dynamic extended information;
and the corresponding equipment directly controls related equipment in different time periods according to the analyzed user instruction, for example, the playing of a smart television program is controlled, or the air volume, the temperature, the air speed and the like of a fresh air system are controlled.
Based on the same inventive concept, the embodiment of the present invention further provides a two-dimensional code generating device capable of adding dynamic extended information, and as the principle of the problem solved by the device is similar to the aforementioned two-dimensional code generating method capable of adding dynamic extended information, the implementation of the device can refer to the implementation of the aforementioned method, and repeated parts are not described again.
The two-dimensional code generating device capable of adding dynamic extended information provided by the embodiment of the invention, as shown in fig. 6, includes:
and the dynamic extended information generating module 61 is configured to collect user requests in different time periods, and generate dynamic extended information based on the user requests in different time periods.
And a dividing and encoding module 62, configured to obtain the size of the dynamic extension information, and perform dividing and encoding on the dynamic extension information based on the size of the dynamic extension information to generate a plurality of codeword sequences.
And a request code generation module 63, configured to calculate the codeword sequence, generate an error correction code sequence, and arrange the codeword sequence and the error correction code sequence to generate a request code.
Specifically, the error correction code sequence is generated by error correction coding a plurality of codeword sequences.
Specifically, the first frame of each codeword sequence is arranged in sequence, then the second pointer of each codeword sequence is arranged, and so on until all codeword sequences are arranged.
Further, the error correction code sequence is also arranged according to the arrangement mode of the code word sequence.
Further, the arranged error correcting code sequence is arranged behind the arranged code word sequence, the arrangement is completed, and the request code is generated.
And a two-dimension code generating module 64, configured to arrange and arrange the request codes according to the arrangement rule, and set a mask for the arranged and arranged request codes, so as to generate a two-dimension code.
Specifically, the size of the request code is obtained, the check code is set based on the size of the request code, and the size of the request code and the check code are combined to generate the header data.
Further, the request code is embedded into a data area of the two-dimensional code, and the head data is embedded into a head area of the two-dimensional code.
Further, a mask is set on the request code which is well laid out, a two-dimensional code is generated, and the two-dimensional code is displayed on a screen of the user terminal.
In one embodiment, the dynamic extended information generating module 61 includes:
the attribute segmentation unit 611 is configured to collect user requests in different time periods, perform attribute segmentation on the user requests based on preset attributes, and generate request attributes.
Specifically, the user requests of different time periods are segmented based on preset attributes (including time attributes, place attributes, person attributes, destination attributes and the like); for example, the preset attributes are set as time, person and task based on word senses, the time in the extraction of the user request that the owner is allowed to pass between 7 and 8 is 7 to 8, the person is the owner, and the task is allowed to pass through the entrance guard.
Further, the segmentation may be performed according to different time periods and corresponding different user requests. For example, a user request is generated by collecting the viewing requirements of 7-point viewing news simulcast and 8-point viewing health-preserving program XXX of parents, and the user request is divided into 7-point viewing news simulcast and 8-point viewing XXX.
A matrix constructing unit 612, configured to extract the time period requested by the user, and construct a matrix based on the time period and the request attribute.
Specifically, the time periods are sequentially arranged as a first column of the matrix, and the request attribute corresponding to the time period is used as a second column of the matrix.
A sorting connection unit 613, configured to sort and connect the user requests based on the matrix, and generate dynamic extension information.
Specifically, the time periods and the request attributes are bound and then connected in sequence based on the front-back position relationship of the time periods, and user instructions of different time periods are generated.
In one embodiment, the partition encoding module 62 includes:
the request data generating unit 621 is configured to obtain the size of the dynamic extension information, compare the size of the dynamic extension information with a preset size, and divide the dynamic extension information according to a comparison result to generate a plurality of request data.
Specifically, when the size of the dynamic extended information is smaller than a preset size, the size of the dynamic extended information conforms to the data size that can be accommodated by the two-dimensional code; when the size of the dynamic extended information is larger than the preset size, the size of the dynamic extended information exceeds the data volume that can be accommodated by the two-dimensional code, and in order to avoid data uncertainty, the dynamic extended information needs to be segmented based on the capacity of the two-dimensional code to generate a plurality of request data, wherein the size of the request data is smaller than or equal to the capacity of the two-dimensional code.
The encapsulating unit 622 is configured to read the position of the request data, generate a request frame number, and encapsulate the request frame number and the frame header of the request data to generate a data frame.
Specifically, the number of coding symbols, the number of characters, and the end symbol are added after each data frame, and the number of bits is filled.
And an encoding unit 623, configured to encode the data frame to generate a codeword sequence.
Specifically, time data in the request data are extracted based on time attributes, a time difference between the request data is calculated according to the time data in every two request data, a time window is generated based on the time difference, the time window is sequentially embedded into the request data according to the position of the request data, and then a code word sequence is generated.
Based on the same inventive concept, the embodiment of the present invention further provides a two-dimensional code identification apparatus capable of adding dynamic extended information, and as the principle of the problem solved by the apparatus is similar to the aforementioned two-dimensional code identification method capable of adding dynamic extended information, the implementation of the apparatus can refer to the implementation of the aforementioned method, and repeated parts are not described again.
The two-dimensional code recognition device capable of adding dynamic extended information provided by the embodiment of the invention, as shown in fig. 7, includes:
and the positioning correction module 71 is configured to acquire a two-dimensional code image, preprocess the two-dimensional code image, perform positioning correction on the preprocessed two-dimensional code image, and generate a corrected two-dimensional code.
Specifically, a camera is used for collecting a two-dimensional code image, the collected two-dimensional code image is subjected to graying processing, the two-dimensional code image subjected to graying processing is subjected to noise reduction by a median filtering algorithm, and a noise-reduced two-dimensional code image is generated.
Further, each pixel point in the two-dimensional code image after noise reduction is compared with a preset threshold, if the gray value of the pixel point is larger than the preset threshold, the pixel value is replaced by black, and otherwise, the pixel value is replaced by white.
Furthermore, four corners of the two-dimensional code image are positioned, a transformation matrix is generated by means of perspective transformation, the two-dimensional code image and the standard matrix are mapped one by one, actual coordinates of a square block at the upper left corner in the two-dimensional code image are obtained, and the actual coordinates of the square block at the upper left corner are multiplied by the transformation matrix to generate a corrected two-dimensional code.
And an exclusive or processing module 72, configured to read format information of the corrected two-dimensional code, obtain a mask pattern, and perform exclusive or processing on the mask pattern to generate a request code.
And the error correction module 73 is configured to read the symbol character requested to be encoded, generate the codeword sequence and the error correction code sequence, and correct error of the requested data in the codeword sequence based on the error correction code sequence.
And a decoding module 74, configured to decode the corrected codeword sequence, generate dynamic extension information, and generate user instructions in different time periods based on the dynamic extension information.
In one embodiment, the decoding module 74 includes:
a determining unit 741, configured to read the codeword sequence, obtain a data frame, and determine whether the data frame is data that needs to be received according to a frame header structure of the data frame; and if the data frame is a file needing to be received, generating a plurality of request data based on the data frame.
Specifically, the data frame is decapsulated, a request frame number is obtained, and whether the data frame is data to be received is judged according to the request frame number.
A combining unit 742, configured to read a data frame number, and combine the request data based on the data frame number to generate the dynamic extension information.
Specifically, the data frame is decoded, a data frame serial number is extracted, and a plurality of request data are sequenced and combined according to the data frame serial number; wherein, the data frame sequence number indicates the position of the request data in the dynamic extended information.
A matching unit 743, configured to extract the request attribute and the time period in the dynamic extension information based on a preset word sense attribute, and match the request attribute with the time period to generate user instructions of different time periods.
Specifically, the word meaning attribute is preset as time, time periods in the dynamic extended information are extracted based on the time, corresponding request attributes are inquired according to the time periods, and user instructions of different time periods are generated.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. A two-dimensional code generating method capable of adding dynamic extended information is characterized by comprising the following steps:
collecting user requests of different time periods, and generating dynamic extended information based on the user requests of different time periods;
acquiring the size of the dynamic extended information, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences;
calculating the code word sequence to generate an error correction code sequence, and arranging the code word sequence and the error correction code sequence to generate a request code;
arranging and laying out the request codes according to a layout rule, setting a mask for the request codes after arrangement and laying out, and generating a two-dimensional code;
the collecting user requests of different time periods and generating dynamic extended information based on the user requests of different time periods includes:
collecting user requests of different time periods, and performing attribute segmentation on the user requests based on preset attributes to generate request attributes;
extracting a time period requested by the user, and constructing a matrix based on the time period and the request attribute;
and sequencing and connecting the user requests based on the matrix to generate dynamic extension information.
2. The method of claim 1, wherein the obtaining the size of the dynamic extension information, and performing partition coding on the dynamic extension information based on the size of the dynamic extension information to generate a plurality of codeword sequences comprises:
acquiring the size of the dynamic extended information, comparing the size of the dynamic extended information with a preset size, and segmenting the dynamic extended information according to a comparison result to generate a plurality of request data;
reading the position of the request data, generating a request frame serial number, and packaging the request frame serial number and the frame header of the request data to generate a data frame;
and coding the data frame to generate a code word sequence.
3. A two-dimensional code identification method capable of adding dynamic extended information is characterized by comprising the following steps:
acquiring a two-dimensional code image, preprocessing the two-dimensional code image, and performing positioning correction on the preprocessed two-dimensional code image to generate a corrected two-dimensional code;
reading format information of the corrected two-dimensional code, acquiring a mask graph, and performing XOR processing by using the mask graph to generate a request code;
reading the symbol character requested to be encoded, generating a code word sequence and an error correction code sequence, and correcting the error of the request data in the code word sequence based on the error correction code sequence;
decoding the corrected code word sequence to generate dynamic extended information, and generating user instructions in different time periods based on the dynamic extended information;
the decoding the corrected codeword sequence to generate dynamic extension information, and generating user instructions of different time periods based on the dynamic extension information, includes:
reading the code word sequence, acquiring a data frame, and judging whether the data frame is data needing to be received according to a frame header structure of the data frame; if the data frame is a file needing to be received, generating a plurality of request data based on the data frame;
reading a data frame sequence number, and combining the request data based on the data frame sequence number to generate the dynamic extended information;
and extracting a request attribute and a time period in the dynamic extended information based on a preset word meaning attribute, and matching the request attribute with the time period to generate user instructions of different time periods.
4. A two-dimensional code generating device capable of adding dynamic extended information is characterized by comprising:
the dynamic extended information generating module is used for acquiring user requests of different time periods and generating dynamic extended information based on the user requests of the different time periods;
the segmentation coding module is used for acquiring the size of the dynamic extended information, and performing segmentation coding on the dynamic extended information based on the size of the dynamic extended information to generate a plurality of codeword sequences;
a request code generation module, configured to calculate the codeword sequence, generate an error correction code sequence, and arrange the codeword sequence and the error correction code sequence to generate a request code;
the two-dimension code generating module is used for arranging and distributing the request codes according to a layout rule, setting a mask for the request codes after arrangement and distribution and generating the two-dimension code;
the dynamic extended information generation module comprises:
the attribute segmentation unit is used for collecting user requests of different time periods, performing attribute segmentation on the user requests based on preset attributes and generating request attributes;
the matrix construction unit is used for extracting the time period of the user request and constructing a matrix based on the time period and the request attribute;
and the sequencing connection unit is used for sequencing and connecting the user requests based on the matrix to generate dynamic extension information.
5. The apparatus of claim 4, wherein the partition encoding module comprises:
the request data generation unit is used for acquiring the size of the dynamic extended information, comparing the size of the dynamic extended information with a preset size, and segmenting the dynamic extended information according to a comparison result to generate a plurality of request data;
the encapsulation unit is used for reading the position of the request data, generating a request frame serial number, and encapsulating the request frame serial number and the frame header of the request data to generate a data frame;
and the coding unit is used for coding the data frame to generate a code word sequence.
6. A two-dimensional code recognition device capable of adding dynamic extended information is characterized by comprising:
the positioning correction module is used for acquiring a two-dimensional code image, preprocessing the two-dimensional code image, positioning and correcting the preprocessed two-dimensional code image and generating a corrected two-dimensional code;
the XOR processing module is used for reading the format information of the corrected two-dimensional code, acquiring a mask graph, and carrying out XOR processing by using the mask graph to generate a request code;
the error correction module is used for reading the symbol characters requested to be encoded, generating a code word sequence and an error correction code sequence, and correcting the error of the request data in the code word sequence based on the error correction code sequence;
the decoding module is used for decoding the corrected code word sequence to generate dynamic expansion information and generating user instructions in different time periods based on the dynamic expansion information;
the decoding module includes:
the judging unit is used for reading the code word sequence, acquiring a data frame and judging whether the data frame is data needing to be received according to a frame header structure of the data frame; if the data frame is a file needing to be received, generating a plurality of request data based on the data frame;
the combination unit is used for reading a data frame serial number and combining the request data based on the data frame serial number to generate the dynamic extended information;
and the matching unit is used for extracting the request attribute and the time period in the dynamic extended information based on the preset word meaning attribute, matching the request attribute with the time period and generating user instructions of different time periods.
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