CN210428502U

CN210428502U - Access library management system based on RFID technology

Info

Publication number: CN210428502U
Application number: CN201921758675.7U
Authority: CN
Inventors: 雷彪
Original assignee: Shenzhen Realid Smart Technology Co ltd
Current assignee: Shenzhen Realid Smart Technology Co ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2020-04-28
Anticipated expiration: 2029-10-18

Abstract

The utility model discloses an warehouse entry management system based on RFID technique, it is through setting up a plurality of RFID antennas at warehouse entry passageway to change according to the RFID label at the radio frequency signal's that passes back through warehouse entry passageway power of changing and radio frequency signal's antenna number, the article that the RFID label was pasted in the direction of motion of warehouse entry passageway in the analysis, thereby auxiliary system judges the warehouse entry state of article. Specifically, the warehouse entry and exit management system comprises an RFID read-write device, a storage device, a motion recognition device and a plurality of RFID antennas arranged along a warehouse entry and exit channel. Each RFID antenna is in signal connection with an RFID read-write device, and the RFID read-write device, the storage device and the motion recognition device are in signal connection in sequence.

Description

Access library management system based on RFID technology

Technical Field

The utility model relates to a technical field of flow detection equipment, in particular to discrepancy bank management system based on RFID technique.

Background

The RFID technology is a non-contact automatic identification technology, which automatically identifies a target object and acquires related data by a radio frequency signal. The RFID technology can identify high-speed moving objects and can identify a plurality of labels simultaneously, the operation is rapid and convenient, the RFID technology has the remarkable advantages of non-contact, high precision, interference resistance, high speed, strong environment adaptability and the like, and can be widely applied to the fields of production management, logistics management and the like.

In a logistics management system, an RFID system is adopted to identify articles passing through a channel so as to judge whether the articles are put in or taken out of a warehouse, but the RFID identification system is only limited to judge whether the articles participate in the entering and exiting of the warehouse, but cannot judge the moving direction of the articles entering and exiting the entrance guard, and whether the articles are not clear in the entering and exiting of the warehouse; the RFID read/write device is generally disposed on the access door, and the radio frequency coverage for determining the status of entering or exiting the warehouse is short, and the time for reading information from a fast moving object is short, which may result in a missed judgment.

SUMMERY OF THE UTILITY MODEL

The problem to prior art exists, the utility model aims at providing an discrepancy storehouse management system based on RFID technique, its movement track that can discern article to the improvement is to the accuracy of article discrepancy storehouse judgement.

In order to achieve the above object, the utility model provides an come in and go out liberalization system based on RFID technique, it includes: the RFID system comprises a plurality of RFID antennas, an RFID read-write device, a storage device and a motion recognition device, wherein each RFID antenna is in signal connection with the RFID read-write device, and the RFID read-write device, the storage device and the motion recognition device are in signal connection in sequence. The RFID antennas are sequentially arranged on the warehouse-in and warehouse-out channel along the article transportation direction and used for radiating radio frequency signals and receiving label information returned by the RFID labels. The tag information includes an identification number of the RFID tag, signal strength of a radio frequency signal received by the RFID tag, and an antenna number. The RFID read-write device is used for sending out radio frequency signals and reading label information returned by the RFID label. The storage device is used for storing the label information returned by the RFID label. The motion recognition device is used for recognizing the motion track or the motion direction of the article corresponding to the RFID tag according to the tag information in the storage device.

Preferably, the motion recognition device is provided with an in-out warehouse analysis unit, and the in-out warehouse analysis unit can judge the in-out warehouse situation of the article according to the motion track or the motion direction of the article, generate an in-out warehouse information table and send the in-out warehouse information table to the storage device. The storage device is also in signal connection with the network server through the communication device so as to update the in-out information in the network server.

Preferably, the RFID reader is a UHF RFID reader, and the RFID tag is a UHF tag.

Preferably, the plurality of RFID antennas are uniformly arranged on the in-out passage along the article transportation direction.

Preferably, the communication device is a wireless network communication device.

The technical scheme of the utility model through set up a plurality of RFID antennas in warehouse entry passageway, and pass through the RFID read write device scanning the RFID label of marcing on warehouse entry passageway, thereby read the identification number of RFID label passback, the signal strength and the antenna number of the different RFID antennas of receipt, change and the antenna number of the radio frequency signal of receipt change according to the radio frequency signal of the receipt of same RFID label in the process of marcing through the motion recognition device, the movement track or the direction of analysis RFID label, thereby supplementary RFID warehouse entry management system analysis is pasted this RFID label and is in the state of putting in storage or the state of leaving warehouse, and then improve the accuracy that RFID warehouse entry management system judges article warehouse entry and exit warehouse entry. Secondly, the RFID antennas arranged along the warehouse entry and exit channel can also enable the time of the objects of the RFID tags in the coverage range of the RFID antennas to rise, so that the probability of the RFID tags being read is increased, and the warehouse entry and exit judgment capability of the target with quick movement is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a block diagram of an embodiment of an access management system based on RFID technology;

FIG. 2 is a schematic view of the article in position A;

FIG. 3 is a schematic view of the article in position B;

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The utility model provides an discrepancy bank management system based on RFID technique.

Referring to fig. 1-2, fig. 1 is a block diagram of an embodiment of an access management system based on RFID technology according to the present invention, and fig. 2 is a schematic diagram of a state where an article is at position a.

As shown in fig. 1-2, in an embodiment of the present invention, the system for managing an access library based on RFID technology includes: the RFID system comprises a plurality of RFID antennas 100, an RFID read-write device 200, a storage device 300 and a motion recognition device 400, wherein each RFID antenna 100 is in signal connection with the RFID read-write device 200, and the RFID read-write device 200, the storage device 300 and the motion recognition device 400 are in signal connection in sequence. The plurality of RFID antennas 100 are sequentially disposed on the in-out passage 700 along the article transportation direction, and are configured to radiate radio frequency signals and receive tag information returned by the RFID tags. The tag information includes an identification number of the RFID tag, signal strength of a radio frequency signal received by the RFID tag, and an antenna number. The RFID reader 200 is used to send out a radio frequency signal and read the tag information returned by the RFID tag. The storage device 300 is used for storing the tag information returned by the RFID tag. The motion recognition device 400 is used for recognizing the motion track or motion direction of the article corresponding to the RFID tag according to the tag information in the storage device 300.

As shown in fig. 2 to 3, the RFID antenna 100a, the RFID antenna 100b, and the RFID antenna 100c are sequentially disposed in the warehousing direction on the warehousing entrance/exit passage 700, the radiation area of the RFID antenna 100a is an area a, the radiation area of the RFID antenna 100b is an area b, and the radiation area of the RFID antenna 100c is an area c. Assume that an existing article 600 with an RFID tag 600a attached thereto travels from location a to location B of the entryway 700. When the article 600 is at the position a, the RFID tag 600a can only receive the radio frequency signal sent by the RFID antenna 100a, and the RFID tag 600a transmits the tag information of the RFID tag 600a back to the RFID antenna 100a in the form of radio frequency signal, and then the radio frequency signal is transmitted to the RFID reader 200 by the RFID antenna 100a and stored in the storage device 300. The tag information of the RFID tag 600a includes an identification number of the RFID tag 600a, a signal strength of a received radio frequency signal of the RFID antenna 100a, and an antenna number of the RFID antenna 100 a.

When the article 600 travels to the location B, the RFID tag 600a can simultaneously receive the radio frequency signals transmitted by the RFID antenna 100a and the RFID antenna 100B, and the RFID tag 600a transmits the tag information of the RFID tag 600a back to the RFID antenna 100a and the RFID antenna 100B in the form of radio frequency signals, and then the radio frequency signals are transmitted to the RFID reader 200 by the RFID antenna and stored in the storage device 300. At this time, the tag information returned by the RFID tag 600a includes the identification number of the RFID tag 600a, the signal strength of the received radio frequency signal of the RFID antenna 100a and the antenna number of the RFID antenna 100a, and the signal strength of the received radio frequency signal of the RFID antenna 100a and the antenna number of the RFID antenna 100 a.

It should be noted that the tag information returned by the RFID tag 600a to the RFID antenna 100a is the same as the tag information returned by the RFID antenna 100b, and when the RFID reader 200 reads the tag information of the same RFID tag 600a at a certain time, the tag information obtained repeatedly is automatically deleted, so that the tag information is prevented from being repeated.

By analogy, in the process of traveling the article 600, the tag information of the tag 600a is returned in real time, the motion recognition device 400 periodically reads the tag information of the RFID tag 600a from the storage device 300, and compares and analyzes the signal strength and the antenna number of the RFID antenna included in the tag information currently returned by the RFID tag 600a and the signal strength and the antenna number of the RFID antenna included in the tag information historically returned, measures the signal strength change of the RFID tag 600a in the process of traveling, and the antenna number change of the radio frequency signal received by the RFID tag 600a, and further determines the motion direction or the motion trajectory of the RFID tag 600a, thereby assisting the RFID library management system to analyze whether the article 600 is in a warehousing state or a warehousing state.

In the present embodiment, the moving direction of the article 600 is from the position a → the position B, i.e., from outside the warehouse to inside the warehouse, so that the state of the article 600 entering or exiting the warehouse can be determined according to the logical operation. When the article 600 is determined to be in a warehousing state, if the article is not read by the RFID antenna 100a, the RFID antenna 100b and the RFID antenna 100c within the set time, it is determined 600 that the article is successfully warehoused.

Preferably, in this embodiment, the motion recognition device 400 has an in-out analysis unit, which can determine the situation of the article entering or exiting the warehouse according to the motion track or the motion direction of the article, generate an in-out information table, and send the in-out information table to the storage device. The storage device is also in signal connection with the network server through the communication device 500 to update the in-out information in the network server.

Preferably, in this embodiment, the RFID reader 200 is a UHF RFID reader, and the RFID tag is a UHF tag. The UHF label has the advantages of long identification distance, high identification and reading rate, strong anti-collision capability and the like, and can improve the reading probability of the RFID label.

Preferably, in the present embodiment, a plurality of RFID antennas 100 are uniformly arranged on the in-out passage 700 along the article transportation direction, so that the radiation areas of the RFID antennas 100 are uniformly distributed, and the direction or track of the article movement is determined according to the distribution of the RFID antennas 100.

Preferably, in this embodiment, the communication device 500 is a wireless network communication device, so as to build a transmission network, and the flexibility is good. In addition, according to the design requirement of the system, the communication device 300 can also adopt a wired network for data transmission, and the stability is good.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. An RFID technology-based access management system, comprising:

the RFID antennae are used for radiating radio frequency signals and receiving label information returned by the RFID labels, and are sequentially arranged on the warehouse-in and warehouse-out channel along the article transportation direction; the tag information comprises an identification number of the RFID tag, the signal intensity of a radio frequency signal received by the RFID tag and an antenna number;

the RFID read-write device is used for sending out radio frequency signals and reading label information returned by the RFID label;

the storage device is used for storing the label information returned by the RFID label;

the motion recognition device is used for recognizing the motion track or motion direction of the article corresponding to the RFID tag according to the tag information in the storage device;

each RFID antenna is in signal connection with an RFID read-write device, and the RFID read-write device, the storage device and the motion recognition device are in signal connection in sequence.

2. The RFID-based warehousing management system according to claim 1, wherein the motion recognition device is provided with an warehousing analysis unit which judges the warehousing condition of the articles according to the motion track or the motion direction of the articles and generates an article warehousing information table;

the storage device is also in signal connection with the network server through the communication device.

3. The RFID-based warehousing management system of claim 1, wherein the RFID reader is a UHF RFID reader and the RFID tag is a UHF tag.

4. The RFID-based warehousing management system of claim 1, wherein a plurality of said RFID antennas are uniformly disposed on the warehousing channel along the direction of item transport.

5. The RFID-based warehousing management system of claim 2, wherein the communication device is a wired network communication device or a wireless network communication device.