WO2017113782A1

WO2017113782A1 - Intelligent gating barcode decoding method and system

Info

Publication number: WO2017113782A1
Application number: PCT/CN2016/092341
Authority: WO
Inventors: 柯婷; 吴卫东; 蒋声障; 刘礼建
Original assignee: 福建联迪商用设备有限公司
Priority date: 2015-12-30
Filing date: 2016-07-29
Publication date: 2017-07-06
Also published as: CN105631383A

Abstract

Disclosed are an intelligent gating barcode decoding system and method. The system comprises: a barcode recognition module used for identifying the symbology type of a barcode image and transferring a symbology type signal; a data decoding module used for receiving the symbology type signal and decoding the barcode image. By means of the method, recognition of barcodes of different symbology types can be implemented and the decoding efficiency can be improved.

Description

Title: Inventive Name: Method and System for Intelligent Gating Bar Code Decoding

[0001] The present invention relates to the field of bar code decoding technology, and in particular, to a method and system for intelligent gating bar code decoding.

Background technique

[0002] With the development of computer applications, bar code technology has also been rapidly developed, which is widely used in commercial, postal, library management, warehousing, industrial generation process control, transportation and other fields, with fast input, high accuracy and low cost. , the reliability is strong, etc. Therefore, the research on bar code decoding technology is very meaningful.

[0003] Nowadays, bar codes widely used in various fields are various, and are divided into one-dimensional codes and two-dimensional codes according to their dimensions. Among them, the one-dimensional code includes Code39, Code93, Codel28, UCC/EAN-128, Code2 5, cross 25 code, Ean8, Eanl3, UPC-A, UPC-E, etc.; QR code includes stacked two-dimensional code and matrix Two-dimensional code, wherein the stacked two-dimensional code includes PDF417, Codel6k, etc., and the matrix two-dimensional code includes QR Code. Codeone. Aztec Hanxin code. A wide variety of bar codes leads to a large number of code rules, which makes it difficult to decode unknown code systems.

[0004] The traditional decoding methods are based on software implementation, inputting an unknown code bar code image, and software realizes the code recognition and decoding of bar code images. Firstly, according to the characteristics of each code system, analyze whether the bar code image has a certain feature one by one. , is to determine the bar code type that has this feature for this purpose, and then call the corresponding code decoding module to achieve decoding, this decoding efficiency is low.

technical problem

[0005] The technical problem to be solved by the present invention is to provide an intelligent gating barcode decoding system and method, and input a bar code image of an unknown code system, which can quickly realize decoding.

Problem solution

Technical solution

[0006] In order to solve the above technical problem, the technical solution adopted by the present invention is: Providing an intelligent gating barcode decoding system, including: [0007] a barcode identification module, configured to identify a code type of the barcode image, and transmit a code type signal;

[0008] a data decoding module, configured to receive a code type signal, and decode the barcode image.

[0009] In order to solve the above problem, the present invention further provides a smart gating barcode decoding method, including:

[0010] the barcode recognition module identifies a code type of the barcode image, and transmits a code type signal;

[0011] The data decoding module receives the code type signal and decodes the barcode image.

Advantageous effects of the invention

Beneficial effect

[0012] The beneficial effects of the present invention are: Different from the prior art, the present invention identifies a code type by a barcode recognition module, and transmits a corresponding signal to a data decoding module for decoding a barcode image. In the above manner, the present invention can realize the identification of bar codes of different code types and improve the decoding efficiency.

Brief description of the drawing

DRAWINGS

1 is a schematic block diagram 1 of an intelligent strobe decoding system according to an embodiment of the present invention;

2 is a schematic block diagram 2 of a smart gating decoding system according to an embodiment of the present invention;

3 is a schematic block diagram of a control module of a system in a specific embodiment of the present invention;

4 is a schematic flow chart of a decoding method according to an embodiment of the present invention.

detailed description

[0017] The most critical idea of the present invention is to identify the code type by the bar code recognition module and pass the corresponding signal to the data decoding module for decoding the bar code image.

Referring to FIG. 1, a first embodiment of the present invention provides a smart gated barcode decoding system, including:

[0019] a barcode identification module, configured to identify a code type of the barcode image, and transmit a code type signal;

[0020] The data decoding module is configured to receive the code type signal and decode the barcode image.

[0021] wherein, before the barcode identification, an image acquisition module is further needed to collect the barcode image frame sequence.

Generally, the image acquisition module can be composed of a camera module, and

[0022] an image data storage module, configured to receive and store a sequence of barcode image frames, the image in the embodiment of the present invention The data storage module is electrically connected to the image acquisition module and the image recognition module, respectively.

[0023] Wherein, in order to facilitate control, in a specific embodiment, the system further includes a control module, which is mainly used for control triggering of barcode identification and decoding, and its function is similar to that of the gate.

[0024] Specifically, the control module further includes: a data storage control unit, a barcode identification control unit, and a data decoding control unit; wherein:

[0025] the data storage control unit controls the data storage module to receive the image sequence frame, and sends a reception completion signal to the barcode recognition control unit;

[0026] The barcode identification control unit controls the barcode recognition module to perform code type identification on the barcode image sequence frame stored by the data storage module;

[0027] if the identification is successful, the identification success signal is transmitted to the data decoding control unit, and the data decoding control unit triggers the data decoding module to start decoding;

[0028] If the identification fails, the identification failure signal is transmitted to the data storage control unit, and the data storage control unit controls the data storage module to receive the next frame barcode image sequence frame.

[0029] Further, the barcode identification module includes a barcode recognition logic operation unit, and is electrically connected to the control module, the image data storage module, and the barcode recognition module;

[0030] The data decoding module includes two or more decoding logic operation units. After receiving the code type signal, the corresponding decoding logic operation unit is started to decode the barcode image frame sequence transmitted by the image data storage module.

[0031] In addition, the barcode identification module transmits the code type signal and transmits the barcode symbol position information, where the barcode symbol position information is the coordinates of the four corners of the barcode symbol carried in the barcode image; the data decoding module receives the received The bar code symbol position information locates the bar code symbol in the bar code image.

Compared with the prior art, the smart gating barcode decoding system and method of the present invention has the following beneficial effects: 1) replacing the traditional software judgment with the bar code recognition operation logic unit, which can effectively save the bar code recognition time; 2) The decoding logic unit is used instead of the software decoding algorithm to effectively improve the decoding speed. 3) The order of barcode image transmission and decoding can effectively improve the decoding speed of the whole system.

[0033] The second embodiment of the present invention provides a smart gating barcode decoding method, including:

[0034] the barcode recognition module identifies a code type of the barcode image, and transmits a code type signal;

[0035] The data decoding module receives the code type signal and decodes the barcode image. [0036] Before performing the barcode identification and decoding, the barcode material needs to be acquired. Therefore, the embodiment of the present invention further includes:

[0037] the image acquisition module collects a sequence of barcode image frames;

[0038] The image data storage module receives and stores a sequence of barcode image frames.

[0039] wherein, in identifying the code system type, and transmitting the corresponding signal 吋, the barcode identification module identifies the code type of the barcode image by the barcode recognition logic operation unit;

[0040] determining whether the recognition is successful;

[0041] if yes, transmitting a code type signal to the data decoding module;

[0042] Otherwise, the process returns to the step "The image data storage module receives and stores the barcode image frame sequence".

[0043] After receiving the code type signal, the data decoding module triggers the decoding operation logic unit of the corresponding code system to decode the barcode image frame sequence stored by the data storage module;

[0044] determining whether the decoding is successful;

[0045] If yes, the data decoding module outputs a decoding success signal, and outputs the decoding result;

[0046] On the other hand, the data decoding module outputs a decoding failure signal, and returns to the step "Image data storage module receives and stores the barcode image frame sequence".

[0047] In addition, the barcode identification module transmits the code type signal and transmits the barcode symbol position information, where the barcode symbol position information is the coordinates of the four corners of the barcode symbol carried in the barcode image; the data decoding module receives the received The bar code symbol position information locates the bar code symbol in the bar code image.

[0048] For ease of understanding, the following description will be made by way of specific embodiments in conjunction with the accompanying drawings.

As shown in FIG. 1 to FIG. 1 , FIG. 1 is a structural block diagram of a smart gating barcode decoding system according to an embodiment of the present invention. As shown in FIG. 1 , in the embodiment of the present invention, bar code decoding apparatus 300 is provided with bar code identification. Module 310 and data decoding module 320, wherein:

[0050] The barcode identification module 310 is composed of a barcode recognition operation logic unit 311, and is mainly used for identifying a barcode image code type;

[0051] The data decoding module 320 is configured by at least two or more decoding operation logic units, and triggers a decoding operation logic unit of the corresponding code system to decode the barcode image according to the code type signal transmitted by the barcode recognition operation logic unit 311. The decoding operation logic units respectively correspond to decoding units of different code systems. For example, the decoding operation logic units 321, 322, and 323 respectively correspond to a Code39 barcode decoding unit, a Codel28 decoding unit, and a QR code decoding unit, such as a barcode image that is currently collected. QR code, barcode identification When the arithmetic logic unit can correctly recognize, the data decoding module 320 triggers the decoding operation logic unit 323 to decode the barcode image.

2 is a schematic block diagram of a system according to an embodiment of the present invention. As shown in FIG. 2, in the embodiment of the present invention, the entire decoding working system is decoded by the image acquisition module 00, the control module 100, the data storage module 200, and the data. Module 300 is constructed, wherein:

[0053] The image acquisition module 00 is electrically connected to the data storage module 200 to implement collection of barcode images.

As shown in FIG. 3, the control module 100 includes at least a data storage control unit 101, a barcode recognition control unit 102, and a data decoding control unit 103. The data storage control unit 101 is electrically connected to the data storage module 200, and the control data storage module receives the barcode image; the barcode recognition control unit 102 is electrically connected to the barcode recognition module, and when the data storage module receives the image of one frame, the barcode recognition control unit 102 receives the image. After receiving a received signal, the control bar code recognition module implements code system identification of the bar code image; the data decoding control unit 103 is electrically connected to the data decoding module, and controls the decoding operation logic unit that triggers the corresponding code system to decode

[0055] The barcode identification module 310 is electrically connected to the control module 100, the data storage module 200, and the data decoding module 320. The barcode recognition operation logic unit 311 is controlled by the barcode recognition control unit 102 to perform code control on the barcode image stored in the data storage module 200. The type identifies and obtains the bar code symbol position information. If the identification is successful, the identification success signal is sent to the control module, and the data decoding control unit 103 sends an interrupt to the data decoding module 320 (ie, interrupts the interrupt, interrupts the current process, and switches to the subsequent receiving code type process), prompting the data. The decoding module 320 receives the code type signal and the bar code symbol position information transmitted by the bar code identification unit 311; if the recognition fails, returns a recognition failure signal to the control module 100, and the data storage control unit 101 triggers the data storage module 200 to continue to receive the next message. Frame barcode image.

[0056] The data decoding module 320 is electrically connected to the control module 100, the barcode identification module 310, and the data storage module 200. According to the code type signal transmitted by the barcode recognition operation logic unit 311, the data decoding control unit 103 triggers the corresponding code system. The decoding operation logic unit quickly locates the bar code symbol according to the bar code symbol position information transmitted by the bar code recognition operation logic unit 311, and decodes the bar code symbol.

[0057] The present invention also provides a barcode decoding scheme of the system as described above: The image acquisition module collects a sequence of barcode image frames, and transmits the data to the data storage module 200 frame by frame. When the data storage module 200 receives the barcode image of one frame, the data storage The control unit 103 will send a received signal to the barcode recognition control unit 102. The bar code recognition control unit 102 triggers the bar code recognition operation logic unit 311 to perform code type identification on the bar code image, and acquire bar code symbol position information. If the identification is successful, the identification success signal is transmitted to the control module 100, and the data decoding control unit 103 sends an interrupt to the data decoding module 320, causing the data decoding module 320 to receive the code type and barcode symbol position information transmitted by the barcode recognition module 310; If it fails, the identification error signal is returned to the control module 100, and the data storage control unit 102 triggers the data storage module 200 to continue receiving the next frame barcode image. The data decoding control unit triggers the decoding operation logic unit (one of 321~32n) of the corresponding code system to quickly locate the bar code symbol according to the received bar code symbol position information according to the received code type signal, and decodes the bar code symbol, and the decoding is successful. Then, the decoding result is output, and a decoding success signal is returned to the control module 100, otherwise a decoding failure signal is returned. Next, the data storage control unit 102 controls the data storage module 200 to continue receiving the next frame barcode image, ready to enter the decoding of the next frame barcode image.

4 is a schematic flowchart of a method for decoding a smart gating barcode according to an embodiment of the present invention. The specific implementation steps of the embodiment of the present invention are as follows:

[0059] 1. The image acquisition module collects a sequence of barcode image frames;

[0060] 2. The data storage module 200 receives a frame of the barcode image, and sends a reception success signal to the control module;

[0061] 3. The barcode recognition operation logic unit 311 identifies the barcode image code type, and if the recognition is successful, the recognition success signal is sent to the control module; otherwise, step 6 is performed;

[0062] 4. The data decoding control unit 103 sends an interrupt to the data decoding module 320, and causes the data decoding module 320 to receive the code type signal and the bar code symbol position information transmitted by the bar code identification module 310;

[0063] 5. The data decoding control unit 320 triggers a corresponding decoding operation logic unit (one of 321 to 32n) according to the code type, and the triggered decoding operation logic unit will quickly locate the bar code symbol in the barcode image according to the barcode symbol position information. Decoding the barcode symbol, if the decoding fails, returning a decoding failure signal, if the decoding is successful, outputting a decoding success signal, and outputting the decoding result;

[0064] 6. Perform step 2, preparing to start decoding of the next frame barcode image.

[0065] In particular, when there are multiple barcode symbols in the barcode image, and the barcode symbol schemes are the same or different, the barcode recognition control module 310 will recognize all the identifiable barcodes, and then the corresponding code types. And the bar code symbol position information is passed to the data decoding module 320, and the data module 320 determines whether to select one of the bar code symbols or the plurality of bar code symbols. The intelligent gating barcode decoding system uses hardware integration instead of software decoding, which can effectively improve the overall decoding speed. The bar code recognition operation logic unit replaces the traditional decoding software code recognition module, which effectively improves the code recognition speed; replaces the software decoding module with each code decoding operation logic unit, effectively improves the decoding speed, and greatly improves the bar code of the unknown code system. Decoding rate; Peer, the order of bar code image transmission and decoding, can effectively improve the decoding speed of the whole system.

Claims

Claim

[Claim 1] A smart gated barcode decoding system, comprising:

The barcode identification module is configured to identify a code type of the barcode image, and transmit a code type signal data decoding module, configured to receive the code type signal, and decode the barcode image.

[Claim 2] The intelligent strobe barcode decoding system according to claim 1, further comprising an image acquisition module, including a camera module, configured to collect a barcode image frame sequence; and an image data storage module, configured to receive And storing a barcode image frame sequence, and electrically connecting with the image acquisition module and the image recognition module respectively.

[Claim 3] The intelligent strobe barcode decoding system according to claim 2, further comprising a control module, wherein the control module comprises: a data storage control unit, a barcode recognition control unit, and a data decoding control unit; :

After receiving the image sequence frame, the data storage control unit controls the data storage module to send the reception completion signal to the barcode recognition control unit;

The barcode recognition control unit controls the barcode recognition module to perform code type identification on the barcode image sequence frame stored by the data storage module;

If the identification is successful, the identification success signal is transmitted to the data decoding control unit, and the data decoding control unit triggers the data decoding module to start decoding;

If the identification fails, the identification failure signal is transmitted to the data storage control unit, and the data storage control unit controls the data storage module to receive the next frame barcode image sequence frame.

[Claim 4] The intelligent strobe barcode decoding system according to claim 1, wherein the barcode recognition module comprises a barcode recognition logic operation unit, and is electrically connected to the control module, the image data storage module and the barcode recognition module;

The data decoding module includes two or more decoding logic operation units. After receiving the code type signal, the corresponding decoding logic operation unit is started to decode the barcode image frame sequence transmitted by the image data storage module.

[Claim 5] The intelligent strobe barcode decoding system according to claim 1, wherein the barcode identification The module transmits the barcode symbol position information, and the barcode symbol position information is the coordinates of the four corners of the barcode symbol carried in the barcode image; the data decoding module locates the barcode according to the received barcode position information. The bar code symbol in the image. A smart gating barcode decoding method, comprising:

The barcode recognition module identifies the code type of the barcode image and transmits the code type signal; the data decoding module receives the code type signal and decodes the barcode image.

The smart gating barcode decoding method according to claim 6, further comprising: the image acquisition module acquiring a barcode image frame sequence;

The image data storage module receives and stores a sequence of barcode image frames.

The smart gating barcode decoding method according to claim 6, wherein the bar code recognition module identifies the code type of the bar code image, and the step of transmitting the code type signal is specifically: the bar code recognition module identifies the bar code through the bar code recognition logic operation unit The code type of the image; determine whether the recognition is successful;

If yes, transmitting a code type signal to the data decoding module;

Otherwise, return to the step "Image data storage module receives and stores a barcode image frame sequence". The intelligent strobe barcode decoding method according to claim 6, wherein the data decoding module receives the code type signal, and the step of decoding the barcode image is: the data decoding module receives the code type signal, triggers the corresponding code system. The decoding operation logic unit decodes the barcode image frame sequence stored by the data storage module;

Determine whether the decoding is successful;

If so, the data decoding module outputs a decoding success signal, and outputs the decoding result; otherwise, the data decoding module outputs a decoding failure signal, and returns to the step "Image data storage module receives and stores the barcode image frame sequence".

The intelligent strobe barcode decoding method according to claim 6, wherein the barcode identification module transmits the code type signal and transmits the barcode symbol position information, and the barcode symbol position information is a barcode symbol carried in the barcode image. Coordinates of four corners; data decoding The module locates the bar code symbol in the barcode image according to the received barcode symbol position information.