CN111079454A - Article positioning method based on ultrahigh frequency RFID and picture recognition - Google Patents
Article positioning method based on ultrahigh frequency RFID and picture recognition Download PDFInfo
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- CN111079454A CN111079454A CN201910986174.2A CN201910986174A CN111079454A CN 111079454 A CN111079454 A CN 111079454A CN 201910986174 A CN201910986174 A CN 201910986174A CN 111079454 A CN111079454 A CN 111079454A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
- G06K7/10415—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM
- G06K7/10425—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device
- G06K7/10435—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device the interrogation device being positioned close to a conveyor belt or the like on which moving record carriers are passing
- G06K7/10445—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device the interrogation device being positioned close to a conveyor belt or the like on which moving record carriers are passing the record carriers being fixed to further objects, e.g. RFIDs fixed to packages, luggage, mail-pieces or work-pieces transported on a conveyor belt
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/22—Matching criteria, e.g. proximity measures
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Abstract
The invention discloses an article positioning method based on ultrahigh frequency RFID and picture identification, which comprises the following specific steps: s1, collecting RFID label information of an article and an article photo uniquely corresponding to the RFID label information, and storing the RFID label information and the article photo in the central processing unit; s2, the ultrahigh frequency RFID collecting device collects RFID label information of articles on the conveyor belt and transmits the RFID label information to the central processing unit; s3, the image acquisition device acquires picture information of articles on the conveyor belt and transmits the picture information to the central processing unit; s4, the central processing unit extracts the photo of the article corresponding to the received RFID label information, and matches the photo with the received image information of the article collected by the image collecting device so as to locate the position of the article. The invention utilizes the ultrahigh frequency RFID to read the label information in a certain range to define a certain matching sample, thereby reducing the number of matching samples, improving the photo matching accuracy and realizing the accurate positioning of the RFID luggage.
Description
Technical Field
The invention relates to an article identification and positioning method, in particular to an article positioning method based on ultrahigh frequency RFID and picture identification, and belongs to the technical field of radio frequency identification.
Background
With the wide application of ultrahigh frequency RFID tags, more and more airport luggage is attached with RFID tags, and the tags can be quickly identified on a conveyor belt, so that the luggage can be sorted and picked conveniently. However, the traditional RFID acquisition is batch acquisition, a specific algorithm and an environment are not provided, the read data is difficult to distinguish, and the matching accuracy is low, so that the accurate positioning is not facilitated.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the article positioning method based on the ultrahigh frequency RFID and the picture identification, which reduces the number of matching samples and improves the photo matching accuracy.
In order to solve the technical problems, the invention provides an article positioning method based on ultrahigh frequency RFID and picture identification, which comprises a central processing unit, and an ultrahigh frequency RFID acquisition device and an image acquisition device which are connected with the central processing unit, wherein the acquisition range L1 of the image acquisition device is within the acquisition range L2 of the ultrahigh frequency RFID acquisition device,
the method comprises the following specific steps:
s1, collecting RFID label information of an article and an article photo uniquely corresponding to the RFID label information, and storing the RFID label information and the article photo in the central processing unit;
s2, the ultrahigh frequency RFID collecting device collects RFID label information of articles on the conveyor belt and transmits the RFID label information of the articles to the central processing unit;
s3, the image acquisition device acquires picture information of articles on the conveyor belt and transmits the picture information of the articles to the central processing unit;
s4, the central processing unit extracts the photo of the article corresponding to the received RFID label information, matches the photo with the received image information of the article collected by the image collection device, and if the matching is successful, the position of the positioned article is the position of the image collection device.
The technical solution of the present invention is further defined in that after step S4, the central processor calculates the real-time position of the article in real time according to the speed of the conveyor belt.
Further, the acquisition range L1 of the image acquisition device is 1.5 times of the length L0 of the conventional article.
Further, the ultrahigh frequency RFID acquisition device and the image acquisition device perform synchronous acquisition.
Further, in step S4, if the matching is not successful, the next information collection is automatically performed.
Has the advantages that: the invention provides an article positioning method based on ultrahigh frequency RFID and picture recognition, which is characterized in that an ultrahigh frequency RFID label on a conveyor belt article is read on a conveyor belt, and comprehensive matching recognition is carried out by combining the previously shot RFID article picture to determine the information position information of the RFID article.
Drawings
Fig. 1 is a system configuration diagram of an article positioning method based on ultrahigh frequency RFID and picture recognition according to embodiment 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
The invention provides an article positioning method based on ultrahigh frequency RFID and picture identification, which is applied to the environment of an airport luggage conveyer belt, the system structure diagram of the method is shown in figure 1, the system structure diagram comprises a central processing unit, and an ultrahigh frequency RFID acquisition device 101 and an image acquisition device 102 which are connected with the central processing unit, and the ultrahigh frequency RFID acquisition device 101 and the image acquisition device 102 are both arranged at one side of the conveyer belt 103.
The ultrahigh frequency RFID acquisition device 101 is composed of an ultrahigh frequency RFID reader-writer, a reader-writer antenna, a feeder line between the reader-writer and the antenna and corresponding supporting equipment, and the length of a reading range on a conveyor belt is L2. The image capturing device 102, which has a capture range of L1 on the conveyor belt, has a capture range of L1 within the capture range of L2 of the uhf RFID capturing device. Where the length of the luggage is generally L0, then L1> -1.5 × L0.
The method comprises the following specific steps:
s1, collecting RFID label information of the article and the article photo uniquely corresponding to the RFID label information, and storing the RFID label information and the article photo in the central processing unit.
And S2, the ultrahigh frequency RFID acquisition device acquires the RFID label information of the articles on the conveyor belt and transmits the RFID label information of the articles to the central processing unit.
And S3, the image acquisition device acquires the picture information of the articles on the conveyor belt and transmits the picture information of the articles to the central processing unit.
The ultrahigh frequency RFID acquisition device and the image acquisition device perform synchronous acquisition, the acquisition time interval is t0 ═ L0/V/2, wherein V is the moving speed of the conveyor belt, so that acquisition can ensure that any RFID article luggage can be completely photographed, and the acquisition density is not very high.
S4, the central processing unit extracts the photo of the article corresponding to the received RFID label information, matches the photo with the received image information of the article collected by the image collection device, and if the matching is successful, the position of the positioned article is the position of the image collection device.
In each information acquisition, the quantity of the information acquired by the ultrahigh frequency RFID information acquisition equipment is n, the picture acquired by the picture acquisition equipment is P1, and then the N luggage pictures are matched by using P1 (the luggage pictures are shot in the previous link). After the matching of the picture P1 is completed, it becomes known that the position of the matched RFID article bag at the photographing time is within the range of the conveyor belt L1, and position information is obtained.
And S5, the central processor calculates the real-time position of the article in real time according to the speed of the conveyor belt, and the real-time position can be calculated according to the speed of the conveyor belt and the time interval.
The real-time position is updated on the LED display screen in real time, and the passengers can easily find the articles by the images of the articles.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (5)
1. An article positioning method based on ultrahigh frequency RFID and picture identification is characterized by comprising a central processing unit, and an ultrahigh frequency RFID acquisition device and an image acquisition device which are connected with the central processing unit, wherein the acquisition range L1 of the image acquisition device is within the acquisition range L2 of the ultrahigh frequency RFID acquisition device,
the method comprises the following specific steps:
s1, collecting RFID label information of an article and an article photo uniquely corresponding to the RFID label information, and storing the RFID label information and the article photo in the central processing unit;
s2, the ultrahigh frequency RFID collecting device collects RFID label information of articles on the conveyor belt and transmits the RFID label information of the articles to the central processing unit;
s3, the image acquisition device acquires picture information of articles on the conveyor belt and transmits the picture information of the articles to the central processing unit;
s4, the central processing unit extracts the photo of the article corresponding to the received RFID label information, matches the photo with the received image information of the article collected by the image collection device, and if the matching is successful, the position of the positioned article is the position of the image collection device.
2. The method as claimed in claim 1, wherein after step S4, the cpu calculates the real-time location of the object according to the speed of the conveyor belt.
3. The method as claimed in claim 1, wherein the capturing range L1 of the image capturing device is 1.5 times of the length L0 of the conventional article.
4. The article positioning method based on UHF RFID and picture recognition as claimed in claim 1, wherein the UHF RFID acquisition device and the image acquisition device perform synchronous acquisition.
5. The method for locating items according to claim 1, wherein if the matching is not successful, the next information collection is automatically performed in step S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910986174.2A CN111079454A (en) | 2019-10-17 | 2019-10-17 | Article positioning method based on ultrahigh frequency RFID and picture recognition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910986174.2A CN111079454A (en) | 2019-10-17 | 2019-10-17 | Article positioning method based on ultrahigh frequency RFID and picture recognition |
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| CN111079454A true CN111079454A (en) | 2020-04-28 |
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| CN201910986174.2A Pending CN111079454A (en) | 2019-10-17 | 2019-10-17 | Article positioning method based on ultrahigh frequency RFID and picture recognition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111914968A (en) * | 2020-08-11 | 2020-11-10 | 上海双十信息科技有限公司 | Article loading accurate positioning method based on RFID technology |
| CN112116047A (en) * | 2020-09-28 | 2020-12-22 | 上海双十信息科技有限公司 | Method and device for quickly searching article carrying RFID label |
| CN115424712A (en) * | 2022-08-31 | 2022-12-02 | 广州阅微医学检验所有限公司 | A logistics end verification system and method for medical test samples |
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| US20110267172A1 (en) * | 2010-04-30 | 2011-11-03 | Symbol Technologies, Inc. | Triggering a radio frequency identification scan using image recognition |
| CN104766479A (en) * | 2015-01-27 | 2015-07-08 | 公安部交通管理科学研究所 | Automobile identity recognition method and device based on ultrahigh frequency radio frequency and video image dual-recognition matching |
| CN107679438A (en) * | 2017-10-13 | 2018-02-09 | 李志毅 | A kind of ultrahigh-frequency tag reading device and method with image identification function |
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2019
- 2019-10-17 CN CN201910986174.2A patent/CN111079454A/en active Pending
Patent Citations (3)
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|---|---|---|---|---|
| US20110267172A1 (en) * | 2010-04-30 | 2011-11-03 | Symbol Technologies, Inc. | Triggering a radio frequency identification scan using image recognition |
| CN104766479A (en) * | 2015-01-27 | 2015-07-08 | 公安部交通管理科学研究所 | Automobile identity recognition method and device based on ultrahigh frequency radio frequency and video image dual-recognition matching |
| CN107679438A (en) * | 2017-10-13 | 2018-02-09 | 李志毅 | A kind of ultrahigh-frequency tag reading device and method with image identification function |
Non-Patent Citations (1)
| Title |
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| 付余路;张华;刘冉;梁高丽;何静;张红阳;肖宇峰;: "融合RFID相位与激光的快速动态目标定位" * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111914968A (en) * | 2020-08-11 | 2020-11-10 | 上海双十信息科技有限公司 | Article loading accurate positioning method based on RFID technology |
| CN111914968B (en) * | 2020-08-11 | 2023-10-13 | 上海双十信息科技有限公司 | Article loading accurate positioning method based on RFID technology |
| CN112116047A (en) * | 2020-09-28 | 2020-12-22 | 上海双十信息科技有限公司 | Method and device for quickly searching article carrying RFID label |
| CN115424712A (en) * | 2022-08-31 | 2022-12-02 | 广州阅微医学检验所有限公司 | A logistics end verification system and method for medical test samples |
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