CN110991570B - Article monitoring method based on ultrahigh frequency RFID and picture identification - Google Patents
Article monitoring method based on ultrahigh frequency RFID and picture identification Download PDFInfo
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- CN110991570B CN110991570B CN201910986199.2A CN201910986199A CN110991570B CN 110991570 B CN110991570 B CN 110991570B CN 201910986199 A CN201910986199 A CN 201910986199A CN 110991570 B CN110991570 B CN 110991570B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000284 extract Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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 provisions 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 provisions 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, a collection device group and a judgment device group, wherein the collection device group and the judgment device group are connected with the central processing unit, and the monitoring steps are as follows: s1, the acquisition device group and the judging device group acquire information of the object through the combination of the image acquisition device and the ultrahigh frequency RFID acquisition device, match the information of the RFID tag preset by the central processing unit with the object photo uniquely corresponding to the information of the RFID tag, and determine the acquired object; s2, the central processing unit matches the object collected by the collection device group with the object collected by the judgment device group after a specific time delay, and if the object collected by the collection device group is not matched with the object collected by the judgment device group, the object is judged to be 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 conveyor belt at 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 identification, and belongs to the technical field of wireless radio frequency identification.
Background
With the wide application of the ultra-high frequency RFID tags, logistics express, airport baggage and warehouse goods are all stuck with the ultra-high frequency RFID tags, and the tags can be rapidly identified on a conveyor belt. However, the read range of the ultrahigh frequency RFID is not accurately defined due to the transmission power, the tag sensitivity, the metal reflection, and the like.
The current image recognition technology is also developed in rapid progress, but for articles with high similarity, such as baggage, 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 and the like, so that the matching accuracy is greatly changed.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides an article monitoring method based on ultrahigh frequency RFID and picture identification, which improves the accuracy of article monitoring and accurately judges the state of the article.
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, a collection device group and a judgment device group, wherein the collection device group and the judgment device group are connected with the central processing unit, and each of the collection device group and the judgment device group comprises an image collector and an ultrahigh frequency RFID collector, and the monitoring steps are as follows:
s1, the acquisition device group and the judging device group acquire information of the object through the combination of the image acquisition device and the ultrahigh frequency RFID acquisition device, match the information of the RFID tag preset by the central processing unit with the object photo uniquely corresponding to the information of the RFID tag, and determine the acquired object;
s2, the central processing unit matches the object collected by the collection device group with the object collected by the judgment device group after a specific time delay, and if the object collected by the collection device group is not matched with the object collected by the judgment device group, the object is judged to be taken away.
The technical scheme of the invention is further defined as that the specific method for determining the collected objects in the step S1 is as follows:
p1, acquiring RFID tag information of an article and an article photo uniquely corresponding to the RFID tag information, and storing the RFID tag information and the article photo into the central processor;
p2, the ultrahigh frequency RFID collector collects RFID tag information of the articles on the conveyor belt and transmits the RFID tag information of the articles to the central processor;
p3, the image collector collects 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 tag information, matches the received image information of the article acquired by the image acquisition unit, and if the matching is successful, the position of the positioned article is the position of the image acquisition unit.
Further, in step S2, the specific time delay is multiple, and is determined according to the distance l between the acquisition device group and the determination device group and the object movement speed S.
Further, step S2 determines that the article has been removed, and the central processor sends a prompt message, and deletes the information of the article.
Further, the acquisition range of the image acquisition device of the acquisition device group and the judgment device group is within the acquisition range of the ultrahigh frequency RFID acquisition device.
The beneficial effects are that: according to the article monitoring method based on the ultrahigh frequency RFID and the picture identification, the article information is acquired in a mode of combining the image acquisition device and the ultrahigh frequency RFID acquisition device, so that whether the article is taken away or not is judged, 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 the luggage conveyor belt in an airport.
Drawings
Fig. 1 is a schematic view of an application scenario of an article monitoring method based on ultra-high frequency RFID and picture recognition provided in embodiment 1.
Detailed Description
The 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 a collection device group and a judgment device group which are connected with the central processing unit, wherein the collection device group and the judgment device group both comprise an image collector and an ultrahigh frequency RFID collector. The acquisition range of the image acquisition device of the acquisition device group and the judgment device group is within the acquisition range of the ultrahigh frequency RFID acquisition device.
The monitoring steps are as follows:
s1, the acquisition device group and the judging device group acquire information of the object through the combination of the image acquisition device and the ultrahigh frequency RFID acquisition device, and match the information of the RFID tag preset by the central processing unit with the object photo uniquely corresponding to the information of the RFID tag to determine the acquired object.
The specific method for determining the collected objects in the step S1 is as follows:
p1, acquiring RFID tag information of an article and an article photo uniquely corresponding to the RFID tag information, and storing the RFID tag information and the article photo into the central processor;
p2, the ultrahigh frequency RFID collector collects RFID tag information of the articles on the conveyor belt and transmits the RFID tag information of the articles to the central processor;
p3, the image collector collects 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 tag information, matches the received image information of the article acquired by the image acquisition unit, and if the matching is successful, the position of the positioned article is the position of the image acquisition unit.
S2, the central processing unit matches the object collected by the collection device group with the object collected by the judgment device group after a specific time delay, and if the object collected by the collection device group is not matched with the object collected by the judgment device group, the object is judged to be taken away. After the article is judged to be taken away, the central processing unit sends out prompt information, and meanwhile, the information of the article is deleted.
The specific time delay is multiple, and the specific time delay is determined according to the distance l between the acquisition device group and the judging device group and the article movement speed s.
The invention is applied to an airport luggage conveyor belt, a structural schematic diagram is shown in fig. 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 acquisition device A101 and an ultrahigh frequency RFID acquisition device A102, the acquisition range of the image acquisition device A101 is L1, the acquisition range of the ultrahigh frequency RFID acquisition device A102 is L4, and the acquisition range L1 of the image acquisition device A101 is within the acquisition range L4 of the ultrahigh frequency RFID acquisition device A102.
The judging device group comprises an image collector B103 and an ultrahigh frequency RFID collector B104, the collecting range of the image collector B103 is L3, the collecting range of the ultrahigh frequency RFID collector B104 is L5, and the collecting range L3 of the image collector B103 is within the collecting range L5 of the ultrahigh frequency RFID collector B104. The space between L1 and L3 is L2.
As the articles 106 travel clockwise along the conveyor belt 109, they pass sequentially through the L1, L2, L3 zones. The item 106 may be removed in the L2 region. The collecting device group is confirmed by the collected information in the L1 area and passes through the L3 area, and the judging device group collects the information at the same time, so that the luggage is not taken down. If the collection device group is confirmed by the collected information in the L1 area and passes through the L3 area, the device group is judged not to collect the information, the luggage is taken away, the central processing unit sends out prompt information, and meanwhile, the information of the article is deleted.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (4)
1. The article monitoring method based on the ultrahigh frequency RFID and the picture identification is characterized by comprising a central processing unit, and a collection device group and a judgment device group which are connected with the central processing unit, wherein the collection 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 judging device group acquire information of the object through the combination of the image acquisition device and the ultrahigh frequency RFID acquisition device, match the information of the RFID tag preset by the central processing unit with the object photo uniquely corresponding to the information of the RFID tag, and determine the acquired object;
s2, the central processing unit matches the object collected by the collection device group with the object collected by the judgment device group after a specific time delay, and if the object collected by the collection device group is not matched with the object collected by the judgment device group, the object is judged to be taken away;
the specific method for determining the collected objects in the step S1 is as follows:
p1, acquiring RFID tag information of an article and an article photo uniquely corresponding to the RFID tag information, and storing the RFID tag information and the article photo into the central processor;
p2, the ultrahigh frequency RFID collector collects RFID tag information of the articles on the conveyor belt and transmits the RFID tag information of the articles to the central processor;
p3, the image collector collects 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 tag information, matches the received image information of the article acquired by the image acquisition unit, and if the matching is successful, the position of the positioned article is the position of the image acquisition unit.
2. The method for monitoring articles based on ultrahigh frequency RFID and picture recognition according to claim 1, wherein in step S2, the specific time delay is plural, and is determined according to the distance l between the acquisition device group and the determination device group and the article movement speed S.
3. The method for monitoring articles based on ultra-high frequency RFID and picture recognition according to claim 1, wherein step S2 is performed after determining that the article has been removed, the CPU sends out a prompt message and, at the same time, deletes the information of the article.
4. The method for monitoring the articles based on the ultrahigh frequency RFID and the picture recognition according to claim 1, wherein the acquisition range of the image acquisition device of the acquisition device group and the judgment device group is within the acquisition range of the ultrahigh frequency RFID acquisition device.
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| CN201910986199.2A CN110991570B (en) | 2019-10-17 | 2019-10-17 | Article monitoring method based on ultrahigh frequency RFID and picture identification |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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