CN110991570A - Article monitoring method based on ultrahigh frequency RFID and picture recognition - Google Patents
Article monitoring method based on ultrahigh frequency RFID and picture recognition Download PDFInfo
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- CN110991570A CN110991570A CN201910986199.2A CN201910986199A CN110991570A CN 110991570 A CN110991570 A CN 110991570A CN 201910986199 A CN201910986199 A CN 201910986199A CN 110991570 A CN110991570 A CN 110991570A
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- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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Abstract
The invention discloses an article monitoring method based on ultrahigh frequency RFID and picture identification, which comprises a central processing unit, and an acquisition device group and a judgment device group which are connected with the central processing unit, wherein the monitoring steps are as follows: s1, the acquisition device group and the judgment device group acquire information of articles through the combination of an image acquisition device and an ultrahigh frequency RFID acquisition device, and match the information with RFID label information preset by the central processing unit and an article photo uniquely corresponding to the RFID label information to determine the acquired articles; s2, the central processor matches the articles collected by the collecting device with the articles collected by the judging device group after a specific time delay, and if the articles collected by the collecting device are not matched with the articles collected by the judging device group, the articles are judged to have been taken away. The invention has accurate matching and reduces the requirement on the processing capacity of the central processing unit, and particularly relates to the use environment of the luggage conveyer belt in an airport.
Description
Technical Field
The invention relates to an article monitoring method, in particular to an article monitoring method based on ultrahigh frequency RFID and picture recognition, and belongs to the technical field of radio frequency identification.
Background
With the wide application of the ultrahigh frequency RFID tags, logistics express delivery, airport luggage and warehouse goods are all pasted with the ultrahigh frequency RFID tags, and the tags can be rapidly identified on a conveyor belt. However, the reading range of the uhf RFID cannot be accurately defined due to the transmission power, the sensitivity of the tag, the metal reflection, and the like.
The current image recognition technology is also developing dramatically, but for articles with high similarity, such as luggage, the matching accuracy is greatly related to the number of pictures to be matched, the shooting angle of the pictures to be matched, the quality of the pictures to be matched, and the like, so that the matching accuracy varies greatly.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides an article monitoring method based on ultrahigh frequency RFID and picture recognition, which improves the article monitoring precision and accurately judges the article state.
In order to solve the technical problems, the invention provides an article monitoring method based on ultrahigh frequency RFID and picture identification, which comprises a central processing unit, and an acquisition device group and a judgment device group which are connected with the central processing unit, wherein the acquisition device group and the judgment device group both comprise an image collector and an ultrahigh frequency RFID collector, and the monitoring steps are as follows:
s1, the acquisition device group and the judgment device group acquire information of articles through the combination of an image acquisition device and an ultrahigh frequency RFID acquisition device, and match the information with RFID label information preset by the central processing unit and an article photo uniquely corresponding to the RFID label information to determine the acquired articles;
s2, the central processor matches the articles collected by the collecting device with the articles collected by the judging device group after a specific time delay, and if the articles collected by the collecting device are not matched with the articles collected by the judging device group, the articles are judged to have been taken away.
The technical solution of the present invention is further defined in that the specific method for determining the collected articles in step S1 is as follows:
p1, 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;
p2, the ultrahigh frequency RFID acquisition device acquires RFID label information of articles on the conveyor belt and transmits the RFID label information of the articles to the central processor;
p3, 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;
and P4, 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 acquired by the image acquisition device, and if the matching is successful, the position of the positioned article is the position of the image acquisition device.
Further, in step S2, a plurality of specific time delays are determined according to the distance l between the collection device group and the determination device group and the article moving speed S.
Further, after step S2 determines that the article has been removed, the cpu sends a prompt message and deletes the information of the article.
Furthermore, the acquisition ranges of the image collectors of the acquisition device group and the judgment device group are within the acquisition range of the ultrahigh frequency RFID collector.
Has the advantages that: the article monitoring method based on the ultrahigh frequency RFID and the picture recognition acquires article information in a mode of combining the image collector and the ultrahigh frequency RFID collector, so that whether articles are taken away or not is judged, the matching is accurate, the requirement on the processing capacity of a central processing unit is reduced, and the method particularly relates to the use environment of luggage conveyer belts in airports.
Drawings
Fig. 1 is a schematic view of an application scenario of the article monitoring method based on the ultra-high frequency RFID and the picture recognition provided in embodiment 1.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
The invention provides an article monitoring method based on ultrahigh frequency RFID and picture identification, which comprises a central processing unit, and an acquisition device group and a judgment device group which are connected with the central processing unit, wherein the acquisition device group and the judgment device group both comprise an image collector and an ultrahigh frequency RFID collector. The acquisition ranges of the image collectors of the acquisition device group and the judgment device group are within the acquisition range of the ultrahigh frequency RFID collector.
The monitoring steps are as follows:
and S1, the acquisition device group and the judgment device group acquire information of the articles by combining an image acquisition device and an ultrahigh frequency RFID acquisition device, match the information with RFID label information preset by the central processing unit and the article photo uniquely corresponding to the RFID label information, and determine the acquired articles.
The specific method for determining the collected articles in step S1 is as follows:
p1, 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;
p2, the ultrahigh frequency RFID acquisition device acquires RFID label information of articles on the conveyor belt and transmits the RFID label information of the articles to the central processor;
p3, 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;
and P4, 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 acquired by the image acquisition device, and if the matching is successful, the position of the positioned article is the position of the image acquisition device.
S2, the central processor matches the articles collected by the collecting device with the articles collected by the judging device group after a specific time delay, and if the articles collected by the collecting device are not matched with the articles collected by the judging device group, the articles are judged to have been taken away. After the article is judged to be taken away, the central processing unit sends out prompt information and deletes the information of the article.
The specific time delay is multiple and is determined according to the distance l between the acquisition device group and the judgment device group and the article movement speed s.
The invention is applied to an airport luggage conveyer belt, the structure schematic diagram is shown in figure 1, a collection device group is arranged at the luggage outlet of an airport turntable, and a judgment device group is arranged at any position of the airport turntable.
The acquisition device group comprises an image acquirer A101 and an ultrahigh frequency RFID acquirer A102, the acquisition range of the image acquirer A101 is L1, the acquisition range of the ultrahigh frequency RFID acquirer A102 is L4, and the acquisition range L1 of the image acquirer A101 is within the acquisition range L4 of the ultrahigh frequency RFID acquirer A102.
The judging device group comprises an image collector B103 and an ultrahigh frequency RFID collector B104, the collection range of the image collector B103 is L3, the collection range of the ultrahigh frequency RFID collector B104 is L5, and the collection range L3 of the image collector B103 is in the collection range L5 of the ultrahigh frequency RFID collector B104. The space between L1 and L3 is L2.
As article 106 travels clockwise along conveyor 109, it passes through the L1, L2, and L3 regions in that order. The item 106 may be removed in the area L2. The collecting device group is confirmed by the collected information in the region L1, and passes through the region L3, and the judging device group simultaneously collects the information, so that the baggage is not removed. If the collecting device group is confirmed by the collected information in the area L1 and passes through the area L3, the judging device group does not collect the information of the collecting device group, the luggage is taken away, the central processing unit sends out prompt information, and meanwhile, the information of the article is deleted.
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 monitoring method based on ultrahigh frequency RFID and picture recognition is characterized by comprising a central processing unit, and an acquisition device group and a judgment device group which are connected with the central processing unit, wherein the acquisition device group and the judgment device group respectively comprise an image collector and an ultrahigh frequency RFID collector, and the monitoring steps are as follows:
s1, the acquisition device group and the judgment device group acquire information of articles through the combination of an image acquisition device and an ultrahigh frequency RFID acquisition device, and match the information with RFID label information preset by the central processing unit and an article photo uniquely corresponding to the RFID label information to determine the acquired articles;
s2, the central processor matches the articles collected by the collecting device with the articles collected by the judging device group after a specific time delay, and if the articles collected by the collecting device are not matched with the articles collected by the judging device group, the articles are judged to have been taken away.
2. The method for monitoring the articles based on the UHF RFID and the image recognition as claimed in claim 1, wherein the specific method for determining the collected articles in the step S1 is as follows:
p1, 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;
p2, the ultrahigh frequency RFID acquisition device acquires RFID label information of articles on the conveyor belt and transmits the RFID label information of the articles to the central processor;
p3, 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;
and P4, 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 acquired by the image acquisition device, and if the matching is successful, the position of the positioned article is the position of the image acquisition device.
3. The method for monitoring objects based on UHF RFID and image recognition as claimed in claim 1, wherein in step S2, the specific time delay is plural and is determined according to the distance l between the collection device set and the determination device set and the object moving speed S.
4. The method as claimed in claim 1, wherein the CPU sends a prompt message and deletes the information of the article after the step S2 determines that the article has been removed.
5. The article monitoring method based on ultrahigh frequency RFID and picture identification as claimed in claim 1, wherein the collection range of the image collector of the collection device group and the judgment device group is within the collection range of the ultrahigh frequency RFID collector.
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Cited By (3)
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| 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 |
| CN113570009A (en) * | 2021-06-21 | 2021-10-29 | 中国南方电网有限责任公司超高压输电公司百色局 | System, method and device for recognizing warehouse entry and exit of electric power equipment and computer equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113570009A (en) * | 2021-06-21 | 2021-10-29 | 中国南方电网有限责任公司超高压输电公司百色局 | System, method and device for recognizing warehouse entry and exit of electric power equipment and computer equipment |
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