CN115688838A - RFID text-to-electricity scanner and working method thereof - Google Patents
RFID text-to-electricity scanner and working method thereof Download PDFInfo
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Abstract
The invention relates to an RFID (radio frequency identification) text-to-electricity scanner and a working method thereof, belonging to the field of Internet of things. The device disclosed by the invention is combined with an ISO18000-3 high-frequency RFID technology and an image scanning technology, and is used for electronically archiving and controlling files. The RFID civil scanner mainly comprises the following components: the radio frequency identification module is used for performing read-write operation on the high-frequency RFID label; the optical imaging module is used for scanning paper to obtain an image; the gear transmission module is used for controlling paper feeding; the logic control module is used for controlling the cooperation between other modules; the image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image; and the external communication module is used for external information interaction. When the condition that a certain file is missing or lost needs to be checked, the RFID reader-writer only needs to check the RFID label bound by the file paper, and the RFID label data can be searched to directly call out the file image associated with the RFID label without turning over the entity file.
Description
Technical Field
The invention belongs to the field of Internet of things, and particularly relates to an RFID (radio frequency identification) text-to-electricity scanner and a working method thereof.
Background
The technical advantages of the traditional ultrahigh frequency RFID are embodied in long distance and have unique advantages in the application fields of logistics management, ETC and the like. However, in the near field, especially in the highly dense stacking scenario, due to the characteristics of the technical implementation principle, the recognition accuracy and speed are difficult to meet the requirements. In recent years, a lot of foreign enterprises represented by NXP develop near-field high-density stacked label research based on a high-frequency RFID technology, and developed ILM series products can meet the use requirement of a high-density stacking scene, so that the application of the RFID technology in the high-density stacking scene becomes possible, and even if each piece of paper in a file is provided with an RFID label, an RFID reader-writer can count all the labels, and the condition of reading omission is avoided.
Based on the high-frequency RFID technology in the special scene, in order to realize the automatic binding of the RFID label on each page of paper in the file and the information of the file paper, each page of paper in the file is managed through the RFID technology. The high-frequency RFID label meeting the high-density stacking scene is pasted on the file paper, then the file image, the file paper information and the RFID label data information are bound through the RFID text-to-electricity scanner and background software to obtain a file information database, and therefore electronic control is achieved on each page of paper in the file.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem of how to provide an RFID (radio frequency identification) radio-frequency scanner and a working method thereof so as to solve the problem that the identification accuracy and speed are difficult to meet the requirements due to the characteristics of the technical implementation principle of the traditional ultrahigh frequency RFID in the near field, particularly in a high-density stacking scene.
(II) technical scheme
In order to solve the above technical problem, the present invention provides an RFID reader, including: a radio frequency identification module, an optical imaging module, a gear transmission module, a logic control module, an image processing module and an external communication module, wherein the logic control module is in full duplex communication with other modules,
the radio frequency identification module is used for performing read-write operation on the high-frequency RFID label; the radio frequency identification module consists of an RFID reader-writer and a radio frequency antenna, and the antenna is arranged right above a paper outlet of the scanner;
the optical imaging module is used for scanning the document paper to obtain an image;
the gear transmission module is used for controlling paper feeding; the gear transmission module includes: the paper feeding device comprises a plurality of groups of gear pulleys, a transmission belt and a motor driving board card, wherein the motor driving board card controls the paper feeding speed of the scanner by changing the rotating speed of a gear, and starts and stops;
the logic control module is used for controlling the cooperation between other modules; the logic control module is a core control mainboard of the RFID text scanner, and the control content comprises the following steps: judging a file home page, image processing file home page information, a paper image, radio frequency identification tag information, paper feeding logic and a file paper identification;
the image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image; the image processing module is responsible for image recognition work of the paper image, preferentially analyzes bar code information after taking the paper image, performs OCR recognition on the image with failed bar code analysis, and sends the file home page information to the logic control module after finishing processing;
and the external communication module is used for external information interaction.
The invention also provides a working method of the RFID text-to-electricity scanner, which comprises the following steps:
s1, starting scanning, controlling to start paper feeding by a gear transmission module, and scanning paper by an optical imaging module in the paper feeding process to obtain a complete paper image;
s2, acquiring file information: the gear transmission module controls to stop paper feeding, the logic control module judges whether the current page is the file home page or not, and for the file home page, the image processing module analyzes the image to obtain file home page information including file name, character number, number of copies and number of copies;
s3, file information interaction: the logic control module sends the information of the first page of the file to the external communication module, the external communication module sends the information to background software through a USB for displaying, and an operator confirms the accuracy of the information; the logic control module combines the file first page information and the current page array into file paper information which comprises file names, character numbers, copy numbers and paper Zhang Yehao;
s4, recording file information: the RFID label meeting the high-density stacking scene is pasted on each piece of paper of the file in advance, after the scanner finishes each piece of paper, the radio frequency identification module writes the information of the piece of paper of the file into the RFID label, wherein the information comprises a file name, a character number, a number of copies and Zhang Yehao, and after the label writing is finished, the radio frequency identification module reads the RFID label again to obtain label data information so as to prevent information loss caused by label writing failure;
s5, binding file information: the gear transmission module controls paper output and starts to move to the next paper, the external communication module uploads the paper image, the file paper information and the label data information to the background software together, and the step S1 is returned again until scanning is finished.
(III) advantageous effects
The invention provides an RFID (radio frequency identification) text-electricity scanner and a working method thereof. As each piece of paper in the file is bound with the RFID label, when the condition that whether a certain file is missing or lost needs to be checked, the RFID label bound with the file paper only needs to be checked through the RFID reader-writer, and the file image associated with the RFID label can be directly called out through searching the data of the RFID label without turning over the entity file.
Drawings
FIG. 1 is a block diagram of an RFID reader device according to the present invention;
FIG. 2 is a flow chart of the specific operation of the RFID reader according to the present invention;
FIG. 3 is a flow chart of an RFID teletext scanner file home page location algorithm according to the invention;
fig. 4 is a basic work flow of the RFID reader according to the present invention.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
The invention discloses an RFID text-to-electricity scanner. The device is combined with an ISO18000-3 high-frequency RFID technology and an image scanning technology and used for electronically archiving and controlling files. The RFID civil scanner mainly comprises the following components: (1) The radio frequency identification module is used for performing read-write operation on the high-frequency RFID label; (2) The optical imaging module is used for scanning paper to obtain an image; (3) a gear transmission module for controlling paper feeding; (4) The logic control module is used for controlling the cooperation between other modules; (5) The image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image; and (6) an external communication module for external information interaction. The basic workflow of the RFID teletext scanner is shown in fig. 4.
The invention aims to provide an RFID text-to-electricity scanner which is used for carrying out automatic electronic control on each paper in a file.
To achieve the above object, as shown in fig. 1, the present invention provides an RFID reader, including:
(1) The radio frequency identification module is used for performing read-write operation on the high-frequency RFID label;
(2) The optical imaging module is used for scanning the document paper to obtain an image;
(3) The gear transmission module is used for controlling paper feeding;
(4) The logic control module is used for controlling the cooperation between other modules;
(5) The image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image;
(6) And the external communication module is used for external information interaction.
The working method of the RFID teletext scanner comprises the following steps:
s1, starting scanning, controlling to start paper feeding by a gear transmission module, and scanning paper by an optical imaging module in the paper feeding process to obtain a complete paper image;
s2, acquiring file information, controlling to stop paper feeding by the gear transmission module, judging whether a current page is a file home page by the logic control module, and analyzing the image by the image processing module to obtain file home page information including file names, character numbers, number of copies, share numbers and the like for the file home page;
and S3, interacting file information. The logic control module sends the information of the first page of the file to the external communication module, the external communication module sends the information to background software through a USB for displaying, and an operator confirms the accuracy of the information; the logic control module combines the file first page information and the current page array into file paper information which comprises file names, character numbers, copy numbers, share numbers, paper page numbers and the like;
and S4, recording file information. RFID tags satisfying a highly densely stacked scene are attached to each sheet of paper of a file in advance. After the scanner finishes one paper, the radio frequency identification module writes the information of the paper of the page of file into the RFID label, wherein the information comprises a file name, a character number, a number of copies, a paper page number and the like. After the label is written, the radio frequency identification module reads the RFID label again to obtain label data information, and information loss caused by label writing failure is prevented.
And S5, binding file information. The gear transmission module controls paper output and starts to move to the next paper, the external communication module uploads the paper image, the file paper information and the label data information to the background software together, and the step S1 is returned again until scanning is finished.
Example 1:
as shown in fig. 1, an RFID file scanner of the present invention comprises:
(1) The radio frequency identification module is used for performing read-write operation on the high-frequency RFID label;
when the RFID system is specifically implemented, the radio frequency identification module is composed of an RFID reader-writer and a radio frequency antenna, the antenna is arranged right above the paper outlet of the scanner and is not higher than 10mm away from paper, the paper is suspended at the paper outlet after being scanned, at the moment, the RFID reader-writer performs checking, reading and writing and other operations on the RFID label on the paper through the antenna, and the operation result is returned to the logic control module.
(2) The optical imaging module is used for scanning the document paper to obtain an image;
in specific implementation, the optical imaging module is composed of a lamp tube, a lens, a photosensitive device and the like, is installed inside the scanner, the lamp tube provides a light source in the paper feeding process, the lens captures light, the photosensitive device completes photoelectric conversion, paper Zhang Yingxiang is generated after paper feeding is completed, and the paper image is returned to the logic control module.
(3) The gear transmission module is used for controlling paper feeding;
when the scanner is specifically implemented, the gear transmission module is composed of a plurality of groups of gear pulleys, a transmission belt and a motor drive board card, the motor drive board card controls the paper feeding speed of the scanner by changing the rotating speed of the gear, and the paper feeding speed is started and stopped, and paper feeding control logic is provided by the logic control module.
(4) The logic control module is used for controlling the cooperation between other modules;
in specific implementation, the logic control module is a core control main board of the RFID text-to-electricity scanner, full-duplex communication is carried out between the logic control module and the other five modules, and the control content comprises judgment of a file home page, file home page information of image processing, paper images, tag information of radio frequency identification, paper feeding logic, file paper identification and the like.
(5) The image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image;
in specific implementation, the image processing module is responsible for image recognition of the paper image, and because the speed of barcode analysis is far less than the speed of OCR recognition, barcode information is preferentially analyzed after the paper image is taken, and then OCR recognition is performed on the image with failed barcode analysis. And after the processing is finished, the information of the first page of the file is sent to the logic control module.
(6) And the external communication module is used for external information interaction.
When the system is specifically implemented, the external communication module comprises a screen display, a key, a usb communication interface and the like on the scanner, the screen display and the key can process abnormal states of the scanner, such as paper jam and RFID tag inventory failure, the usb communication interface is responsible for establishing communication with background software on a computer, sending a paper image transmitted by the logic control module, a file paper identifier and tag information to the background software, receiving file home page confirmation information sent by the background software and the like.
With reference to fig. 2 and 3, the working flow of an RFID file scanner of the present invention is as follows;
(1) When scanning starts, the gear transmission module controls paper feeding to start, and the optical imaging module scans paper in the paper feeding process to obtain a complete paper image;
in specific implementation, a high-frequency RFID tag meeting a high-density stacking scene needs to be attached to the upper left corner or the upper right corner of each page of paper, so that the RFID reader is ensured to complete scanning of the whole page of paper before reading and writing the RFID tag.
In specific implementation, before starting paper feeding, an operator is required to correctly input the number of copies X of the document to be scanned and the number of paper pages y of each document 1 、y 2 …y X Otherwise, the scanner cannot automatically count the paper and cannot ensure the accuracy of writing in the RFID label data.
(2) Acquiring file information, controlling to stop paper feeding by the gear transmission module, judging whether a current page is a file home page by the logic control module, and analyzing file home page information in an image by the image processing module for the file home page;
in specific implementation, for the home page paper image, the image processing module is responsible for carrying out bar code or OCR recognition on the image to obtain the home page information of the file. When processing the image of the first page of the file, the image processing module firstly checks whether a bar code exists in the image, if so, the information in the bar code is directly analyzed, otherwise, the character information in the image processing module is identified through OCR, wherein the character information comprises a file name, a character number, a number of copies, a number of shares and the like.
In specific implementation, a logic control module of the scanner can input the number of the file copies X and the number of pages y of each file paper 1 、y 2 …y X Judging whether the paper is the first page of the file or not, setting the current paper feeding number as a, the current file number as b, the initial values of a and b as 1, defaulting the scanned first paper as the first page of the first file, then increasing a by 1 when the first paper is fed, and when the a is equal to y b If b is less than or equal to X, a starts to increase from 1 again, so when a is equal to 1, the page is the first page of a file, and if b is greater than X, the task is ended.
(3) And (5) file information interaction. The logic control module sends the information of the first page of the file to an external communication module, and an operator confirms the accuracy of the information; the logic control module combines the file first page information and the current page array into file paper information;
in specific implementation, for the first page paper of the file, the information of the first page of the file is displayed to an operator by an external communication module for information confirmation, and the logic control module combines the confirmed information of the first page of the file such as the file name, the character number, the number of copies, the share number and the like with the current paper page number a to form the information of the file paper; for non-first-page document paper, the logic control module directly combines the first-page information of the previous document and the page number a of the current paper into document paper information without the confirmation of an external communication module.
(4) And recording file information. The radio frequency identification module writes file paper information into the RFID label; and the radio frequency identification module reads the RFID label to obtain label data information.
When the RFID label checking method is specifically implemented, the radio frequency identification module firstly carries out checking operation to search the label, if 0 or more RFID labels are checked, the scanning task is suspended, the external communication module prompts that the RFID labels are failed to be checked, and the external communication module asks whether the paper jam or the overlapped paper is detected. And otherwise, when 1 RFID label is successfully checked, the radio frequency identification module writes the file paper information in the step 3 into the label. When the label writing operation is successful, converting the epc data of the RFID label into file paper information; if the tag writing fails, the original epc data of the RFID tag is unchanged. And after the label writing operation is finished, the radio frequency identification module reads the label to acquire the current RFID label data information.
(5) And binding file information. And (3) controlling paper output and starting to move the next paper by the gear transmission module, uploading the paper image, the file paper information and the label data information to background software by the external communication module, and returning to the step (1) again until scanning is finished.
After the file information is bound, the paper image of the target file can be directly retrieved through the file paper information, the label data information of the file can be checked through the RFID reader-writer device, the file paper information and the paper image of the file can be obtained through the label data information, and as each piece of paper in the file is pasted with the RFID label, all the labels in the file can be checked through the RFID reader-writer device, the conditions of missing pages, bad pages and the like in the file can be timely found, and the automatic control of the file can be realized.
Example 2:
an RFID teletext scanner comprising:
the equipment of RFID text-to-electricity scanner is constituteed and is included: (1) The radio frequency identification module is used for performing read-write operation on the high-frequency RFID label; (2) The optical imaging module is used for scanning paper to obtain an image; (3) a gear transmission module for controlling paper feeding; (4) The logic control module is used for controlling the cooperation between other modules; (5) The image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image; and (6) an external communication module for interacting with an operator.
A workflow of an RFID teletext scanner comprising: (1) When scanning starts, the gear transmission module controls to start paper feeding, and the optical imaging module scans paper to obtain a complete paper image in the paper feeding process; and (2) acquiring file information. The gear transmission module stops paper feeding, and for a file home page, the image processing module analyzes the image to obtain file home page information including file names, character numbers, number of copies, part numbers and the like; and (3) file information interaction. The logic control module sends the information of the first page of the file to an external communication module, the information is sent to background software for display through a USB (universal serial bus), an operator confirms the accuracy of the information, and the information of the first page of the file and the current page are combined into the information of the paper of the file; and (4) recording file information. The radio frequency identification module writes file paper information into an RFID label, wherein the file information comprises file names, text numbers, number of copies, paper page numbers and the like, and the RFID label is read once after the writing operation is finished to obtain label data information, so that information loss caused by label writing failure is prevented; and (5) binding file information. The gear transmission module controls paper to be discharged and starts to move to the next paper, the external communication module sends paper images, file paper information and label data information to background software through a USB, and a file information database bound with the paper images, the file paper information and the label data information is established until scanning is finished.
The RFID text-to-electricity scanner utilizes a high-frequency RFID internet of things technology to electronically archive and automatically manage and control files. As each piece of paper in the file is bound with the RFID label, when the condition that whether a certain file is missing or lost needs to be checked, the RFID label bound with the file paper only needs to be checked through the RFID reader-writer, and the file image associated with the RFID label can be directly called out through searching the data of the RFID label without turning over the entity file.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An RFID teletext scanner, comprising: a radio frequency identification module, an optical imaging module, a gear transmission module, a logic control module, an image processing module and an external communication module, wherein the logic control module is in full duplex communication with other modules,
the radio frequency identification module is used for performing read-write operation on the high-frequency RFID label; the radio frequency identification module consists of an RFID reader-writer and a radio frequency antenna, and the antenna is arranged right above a paper outlet of the scanner;
the optical imaging module is used for scanning the document paper to obtain an image;
the gear transmission module is used for controlling paper feeding; the gear transmission module includes: the paper feeding device comprises a plurality of groups of gear pulleys, a transmission belt and a motor driving board card, wherein the motor driving board card controls the paper feeding speed of the scanner by changing the rotating speed of a gear, and starts and stops;
the logic control module is used for controlling the cooperation between other modules; the logic control module is a core control mainboard of the RFID text scanner, and the control content comprises the following steps: judging a document home page, image processing document home page information, a paper image, radio frequency identification label information, paper feeding logic and a document paper identification;
the image processing module is used for carrying out bar code recognition and OCR recognition on the scanned image; the image processing module is responsible for image recognition work of the paper image, preferentially analyzes the bar code information after taking the paper image, performs OCR recognition on the image with failed bar code analysis, and sends the file home page information to the logic control module after finishing processing;
and the external communication module is used for external information interaction.
2. The RFID reader according to claim 1, wherein the antenna is mounted at a position which is right above the paper outlet of the scanner and is not higher than 10mm away from the paper, the paper is suspended at the paper outlet position after being scanned, and the RFID reader performs checking and reading operations on the RFID tag on the paper through the antenna, and returns the operation result to the logic control module.
3. The RFID reader of claim 1, wherein the optical imaging module comprises: the light tube, the lens and the photosensitive device are arranged in the scanner, the light tube provides a light source in the paper feeding process, the lens captures light, the photosensitive device completes photoelectric conversion, paper Zhang Yingxiang is generated after paper feeding is completed, and the paper image is returned to the logic control module.
4. The RFID teletext scanner of claim 1, wherein the external communication module comprises a screen display on the scanner, a key and a usb communication interface, the screen display and the key process the abnormal state of the scanner, the usb communication interface is responsible for establishing communication with background software on the computer, sending the paper image, the file paper identification and the label information sent by the logic control module to the background software, and receiving the file home page confirmation information sent by the background software.
5. A working method of an RFID text scanner is characterized by comprising the following steps:
s1, starting scanning, controlling to start paper feeding by a gear transmission module, and scanning paper by an optical imaging module in the paper feeding process to obtain a complete paper image;
s2, acquiring file information: the gear transmission module controls to stop paper feeding, the logic control module judges whether the current page is the file home page or not, and for the file home page, the image processing module analyzes the image to obtain file home page information including file name, character number, number of copies and number of copies;
s3, file information interaction: the logic control module sends the information of the first page of the file to the external communication module, the external communication module sends the information to background software through a USB for displaying, and an operator confirms the accuracy of the information; the logic control module combines the file first page information and the current page array into file paper information which comprises file names, character numbers, copy numbers and paper Zhang Yehao;
s4, recording file information: the RFID label meeting the high-density stacking scene is pasted on each piece of paper of the file in advance, after the scanner finishes each piece of paper, the radio frequency identification module writes the information of the piece of paper of the file into the RFID label, wherein the information comprises a file name, a character number, a number of copies and Zhang Yehao, and after the label writing is finished, the radio frequency identification module reads the RFID label again to obtain label data information so as to prevent information loss caused by label writing failure;
s5, binding file information: the gear transmission module controls paper output and starts to move to the next paper, the external communication module uploads the paper image, the file paper information and the label data information to the background software together, and the step S1 is returned again until scanning is finished.
6. The method of operating an RFID reader as recited in claim 5, further comprising, prior to step S1: the high-frequency RFID label meeting the high-density stacking scene is firstly pasted on the upper left corner or the upper right corner of each page of paper, and the scanning of the whole page of paper by the RFID reader is guaranteed before the RFID label is read and written.
7. The method of operating an RFID teletext scanner according to claim 5, further comprising, prior to step S1: the operator correctly inputs the number of copies X of the document to be scanned and the number of sheets y per document 1 、y 2 …y X 。
8. The working method of the RFID reader according to claim 1, wherein in the step S2, for the image of the first page of paper, the image processing module is responsible for performing barcode or OCR recognition on the image to obtain the information of the first page of the document; when processing the image of the first page of the file, the image processing module firstly checks whether a bar code exists in the image, if so, the information in the bar code is directly analyzed, otherwise, the character information in the image processing module is identified through OCR, wherein the character information comprises a file name, a character number, a number of copies and a number of copies.
9. The method of claim 8, wherein in step S2, the scanner logic control module is configured to input X number of copies of documents and y number of pages per document sheet 1 、y 2 …y X Judging whether the page is the first page of the file, setting the current paper feeding number as a, the current file number as b, the initial values of a and b as 1, defaulting the first scanned paper as the first page of the first file, then increasing a by 1 for each paper feeding, and when a is equal to y b If b is less than or equal to X, a is increased from 1 again, so when a is equal to 1, the page is a paperIf b is larger than X, the task ends.
10. The method of claim 9, wherein in step S3, for the first page of document, the information of the first page of document is displayed to the operator by the external communication module for information confirmation, and the logic control module combines the confirmed information of the first page of document and the current page number a of the paper into the information of the first page of document; for non-first-page document paper, the logic control module directly combines the first-page information of the previous document and the page number a of the current paper into document paper information without the confirmation of an external communication module.
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