CN216727298U

CN216727298U - RFID reagent cabinet applying wave-absorbing material

Info

Publication number: CN216727298U
Application number: CN202121999451.2U
Authority: CN
Inventors: 孙帆; 白著双; 刘晖
Original assignee: Shandong First Medical University and Shandong Academy of Medical Sciences
Current assignee: Shandong First Medical University and Shandong Academy of Medical Sciences
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-06-14
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses an RFID (radio frequency identification) reagent cabinet applying wave-absorbing materials, which comprises a cabinet body, an RFID signal receiver, an RFID label, wave-absorbing materials and an alarm system, wherein after a reagent bottle is placed in a corresponding reagent cabinet, the wave-absorbing materials at the bottom of the reagent bottle can block the RFID signal receiver from identifying and receiving RFID label signals, the receiver cannot detect label signals, and the system displays 'warehousing'; when the reagent is taken away, the wave-absorbing material can not shield the label signal, the label signal is received by the receiver, and the system displays 'ex-warehouse'; if the reagent is misplaced in the reagent cabinet, the absorption frequency range of the wave-absorbing material does not include the label signal frequency, or the wave-absorbing material is not returned, the wave-absorbing material cannot shield signals, the receiving times reach a certain limit, and the system gives an alarm; the reagent cabinet can reduce the waste of reading times, prolong the service life of the label, reduce signal crosstalk, improve the durability and the identification precision of the system, manage the storage positions of reagents, improve the safety index, provide a new application of the wave-absorbing material, and realize the specific shielding of RFID signals.

Description

RFID reagent cabinet applying wave-absorbing material

Technical Field

The utility model belongs to the technical field of a wave-absorbing material RFID (radio frequency identification) reagent cabinet, and particularly relates to an RFID reagent cabinet applying a wave-absorbing material.

Background

The RFID technology is widely applied to the fields of logistics management, transportation, medical health, commodity anti-counterfeiting, safety protection, management, data statistics and the like, and the RFID system can be divided into low frequency (30-300KHz), high frequency (3-30MHz), ultrahigh frequency (300-1000MHz) and microwave (2.45GHz-5.8GHz) according to different working frequencies of the system. The RFID working system generally consists of an RFID tag and an RFID signal receiver, the maximum distance of tag signals which can be identified by a general identifier is gradually increased from low frequency to microwave along with the increase of frequency, the identification distance of the low frequency system is generally less than 10cm, the low frequency system is often applied to door control, water card and livestock management, and the high frequency system, the ultrahigh frequency system and the microwave system are applied to the aspect of storage management.

The working principle of the conventional RFID reagent cabinet is as follows: and (3) pasting the RFID label on the package outside the reagent bottle, editing information of each label, and detecting corresponding reagent by the system out of the warehouse when the label leaves the receiving range of the receiver when the reagent is taken away. However, existing RFID reagent cabinets tend to suffer from the following disadvantages:

1. the number of readings is wasted and the service life of the tag is short. When the reagent is in a storage state, the signal receiver reads signals at regular intervals, the reading times of the tags are limited, the upper limit of reading of the ultrahigh frequency tag is 100000 times generally, and when the reagent is not used, the reading times are wasted, and the reading service life is shortened.

2. The label is susceptible to damage. The RFID label has extremely poor corrosion resistance and folding resistance, the RFID label is adhered to the reagent bottle body, and the bottle body is easily contacted with oxidizing reagent, water and strong mechanical force in the using process of the reagent so as to damage the label.

3. Signal crosstalk is easy. Under the condition that the reagent stock is large and the labels are used more, the phenomena of reading missing and reading crosstalk easily occur on the receiver, and errors are caused when the reagent is put in or put out of the warehouse.

4. And the wrong storage condition of the reagent cannot be alarmed. When a plurality of RFID reagent cabinets are used simultaneously, if the reagent of the reagent cabinet A is mistakenly stored in the reagent cabinet B, the receiver cannot give an alarm.

Thus improving the lifetime of the tag and the accuracy of the identification of the system are two important market requirements.

The Chinese patent with patent number CN102061858A, RFID intelligent cabinet transmit this information to control system, and control system records the personnel identity authentication information that this time cabinet door was opened and the information of depositing of article, but the life of label is low, can not record the concrete position of article, easy signal crosstalk and do not have reagent misplace alarm function.

Chinese patent No. CN208114350U discloses an intelligence reagent cabinet based on RFID, solved traditional reagent cabinet and can not snatch automatically and do not manage well technical problem, realize whole journey and trail, guaranteed to a great extent and got the security of putting the process, avoid the medicine not put surely to run and fall the water clock etc. nevertheless this reagent cabinet can not be applied to small-scale laboratory and common reagent, require highly to equipment, deposit the cost higher to common reagent.

Chinese patent No. CN212009371U discloses an intelligent joint control system of reagent cabinet, be equipped with equal RFID module in every reagent cabinet, intelligence weighing module and intelligent lock, can effectively monitor the inside all reagent kinds of reagent cabinet and reagent volume of getting, stop a series of reagents that the pseudo-shut-down of reagent cabinet arouses from the source and lose, reagent damages scheduling problem, user responsibility system can be accomplished, guarantee laboratory property safety, but there is label life low equally, easy signal crosstalk and the problem of no wrong alarm of putting.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide the RFID reagent cabinet applying the wave-absorbing material, the reagent cabinet is simple and convenient to use, the label can be repeatedly utilized, the service life of the label is prolonged, the durability and the identification precision of a system are improved, the storage position of the reagent is managed, the safety index is improved, a new purpose of the wave-absorbing material is provided, and the specific shielding of RFID signals is realized by utilizing the difference of wave-absorbing ranges of different components.

An RFID reagent cabinet applying wave-absorbing materials mainly comprises: RFID label 2, absorbing material 3, the cabinet body 4, alarm system 5 and RFID signal receiver 6, RFID label 2 installs in the internal portion of cabinet, and absorbing material 3 pastes in 1 bottom of reagent bottle, and alarm system 5 and RFID signal receiver 6 install outside the cabinet body, and including alarm system 5 in the RFID signal receiver 6, the recess of absorbing material 3 just in time is identical with the tongue of RFID label 2 on the cabinet body 4.

Further, the working process of the RFID reagent cabinet applying the wave-absorbing material comprises the following steps:

1) the bottom of the reagent bottle 1 is adhered with the wave-absorbing material 3, the reagent is placed in a corresponding reagent cabinet, the wave-absorbing material 3 can block the RFID signal receiver 6 from identifying and receiving the RFID label 2, so that the receiver cannot detect the label, and the system displays that the corresponding reagent state is 'warehousing';

2) when the reagent is taken away, the wave-absorbing material does not shield the RFID tag 2 any more, the tag signal is received by the RFID signal receiver 6, the system displays 'ex-warehouse', the RFID tag 2 signal is shielded again after the reagent is correctly returned, and the system records the return condition;

3) the reagent is misplaced in the reagent cabinet, the range of the absorption frequency of the wave-absorbing material does not contain the signal frequency of the label, the signal cannot be shielded, the system detects that the reagent is still in an unreturned state, the receiver still continuously receives the signal from the label at the bottom of the reagent storage position, and the system gives an alarm after the receiving times reach certain limit.

Further, the reagent cabinet mainly comprises:

a) high frequency RFID system reagent cabinet: the RFID tag comprises a high-frequency RFID passive tag, a high-frequency RFID receiver and a high-frequency wave-absorbing material;

b) the reagent cabinet of the ultrahigh frequency RFID system: the system comprises an ultrahigh frequency RFID passive tag, an ultrahigh frequency RFID receiver and an ultrahigh frequency wave-absorbing material;

c) microwave RFID system reagent cabinet: the RFID tag comprises a microwave semi-passive RFID tag, a microwave RFID receiver and a microwave absorbing material.

Further, the wave-absorbing material with the shielding wave band of 1MHz-100MHz shields the high-frequency RFID signal; shielding the ultrahigh frequency RFID signal by the wave-absorbing material with the shielding waveband of 30MHz-1000 MHz; the microwave RFID signal is shielded by the wave-absorbing material with the shielding wave band of 1GHz-3 GHz.

Further, the wave-absorbing material mainly comprises: any one of ferrite wave-absorbing materials, magnetic iron nano materials, silicon carbide or graphene, wherein the ferrite wave-absorbing materials are composite materials made of oxides of Mn, Zn or Ni elements.

Further, the number of system scans is 1-6 minutes/time, and the number of receptions when an alarm is issued is limited as follows: 30-180 times. The electromagnetic wave of the reagent cabinet is a carrier of signals, and no circuit is arranged in the reagent cabinet.

Further, the reagent with different storage temperatures is subjected to cabinet-dividing management:

(1) reagent that normal atmospheric temperature condition was preserved uses high frequency RFID reagent cabinet, includes: the RFID tag comprises a high-frequency RFID passive tag, a high-frequency RFID signal receiver and a high-frequency wave-absorbing material;

(2) the reagent preserved at 0-4 ℃ uses an ultrahigh frequency RFID reagent cabinet, and comprises: the system comprises an ultrahigh frequency RFID passive tag, an ultrahigh frequency RFID signal receiver and an ultrahigh frequency wave-absorbing material;

(3) -20 to-70 ℃ using a microwave RFID reagent cabinet, comprising: the RFID tag comprises a microwave RFID semi-passive tag, a microwave RFID signal receiver and a microwave absorbing material.

By means of the technical scheme, the utility model has the beneficial effects that:

1. the system durability is improved. In the using process of the wave-absorbing material, even if the wave-absorbing material is slightly corroded and soaked, the function of shielding signals cannot be influenced, the traditional RFID reagent cabinet generally requires that an RFID label is attached to the reagent cabinet, and the RFID label is very easy to damage in the using process. In addition, when the reagent is in the reagent cabinet, due to the covering of the wave-absorbing material, the repeated reading of the RFID label by the receiver is reduced, and the service life of the label is prolonged.

2. Realize the management to reagent storage position. In practical application, the reagent cabinet management method is usually embodied in that reagent cabinets with different storage temperatures are managed.

3. The application range is expanded, and the reagent with different storage temperatures can be subjected to cabinet-dividing management.

4. The safety index is improved. The RFID system takes electromagnetic waves as a carrier of signals, and no circuit is arranged in the reagent cabinet, so that safety accidents caused by electric sparks generated in the reagent cabinet are avoided.

5. The novel method for monitoring the reagent by using the RFID system is provided, and the monitored object warehouse-out and warehouse-in states are monitored under the condition that the RFID label is separated from the monitored object.

6. The novel application of the wave-absorbing material is provided, the specific shielding of RFID signals is realized by utilizing the difference of wave-absorbing ranges of different wave-absorbing materials, and thus the function of warning reagent error storage is realized.

Drawings

FIG. 1 is a schematic perspective view of an RFID reagent cabinet using a wave-absorbing material according to the present invention;

FIG. 2 is a schematic diagram of the structure of the RFID tag of the present invention;

FIG. 3 is a schematic structural view of a wave-absorbing material piece according to the present invention.

In the figure: 1. a reagent bottle; 2. an RFID tag; 3. a wave-absorbing material; 4. a cabinet body; 5. an alarm system; 6. An RFID signal receiver; 7. a convex groove is formed in the RFID label; 8. and the wave-absorbing material piece is provided with a groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1, the present invention provides a technical solution: an RFID reagent cabinet applying wave-absorbing materials mainly comprises: RFID label 2, absorbing material 3, the cabinet body 4, alarm system 5 and RFID signal receiver 6, wherein RFID label 2 installs in the internal portion of cabinet, and absorbing material 3 pastes in the 1 bottom of reagent bottle, and alarm system 5 and RFID signal receiver 6 install in the external portion of cabinet, and the recess of absorbing material 3 just in time is identical with the tongue of RFID label 2 on the cabinet body 4.

The workflow of this reagent cabinet mainly includes:

(1) after the reagent is purchased, a circular ferrite wave-absorbing material piece is adhered to the bottom of the reagent bottle, the reagent is placed in a corresponding reagent cabinet, the ferrite wave-absorbing material piece can block the RFID signal receiver from identifying and receiving the RFID label, so that the receiver cannot detect the existence of the label, and the system displays that the corresponding reagent state is 'warehousing'.

(2) When the reagent is taken away, the ferrite wave-absorbing material does not shield the RFID label any more, the RFID label signal is received by the RFID signal receiver, the system displays that the corresponding reagent is taken away, the RFID label signal is shielded again after the reagent is correctly returned, and the system records the returning condition; when the reagent is not returned, the RFID label is exposed, the system scans for 1 minute/time, receives for 180 times, and gives an alarm.

(3) If the reagent is misplaced in the reagent cabinet when the reagent is returned, because the signal frequency of the label is not included in the range of the absorption frequency of the wave-absorbing material at the bottom of the reagent, the signal cannot be shielded, at the moment, the system detects that the reagent is still in an unreturned state, the receiver still continuously receives the signal from the label at the bottom of the reagent storage position, the scanning frequency of the system is 1 minute/time, the receiving frequency is 180 times, and the system gives an alarm.

The method comprises the steps of shielding high-frequency RFID signals by using a wave-absorbing material with a shielding wave band of 1MHz-100MHz, shielding ultrahigh-frequency RFID signals by using a wave-absorbing material with a shielding wave band of 30-1000MHz, and shielding microwave RFID signals by using a wave-absorbing material with a shielding wave band of 1GHz-3 GHz.

Carrying out cabinet-divided management on chemical reagents with different storage temperatures:

(1) for the reagent stored under the normal temperature condition, a high-frequency RFID reagent cabinet with 13.56MHz is used, and the high-frequency RFID reagent cabinet comprises a plurality of RFID passive tags with signal frequency of 13.56MHz, a signal receiver with a signal receiving wave band of about 13.56MHz and a wave-absorbing material with a shielding wave band of 1MHz-100 MHz;

(2) for reagents needing to be stored at about 0 ℃, an 860MHz ultrahigh frequency RFID reagent cabinet is used, and comprises a plurality of RFID passive tags with signal frequency of 860MHz, a signal receiver with a signal receiving waveband of 860MHz and a wave-absorbing material with a shielding waveband of 30-1000 MHz;

(3) for reagents needing to be stored at about-20 ℃, a 2.45GHz microwave RFID reagent cabinet is used, and the reagent cabinet comprises a plurality of RFID semi-passive tags with the signal frequency of 2.45GHz, a signal receiver with the signal receiving wave band of about 2.45GHz, and a wave-absorbing material with the shielding wave band of 1GHz-3 GHz.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modifications, equivalents, improvements and the like which are made without departing from the spirit and scope of the present invention shall be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.

Claims

1. An RFID reagent cabinet applying wave-absorbing materials is characterized by mainly comprising: RFID label (2), absorbing material (3) and RFID signal receiver (6), RFID label (2) are installed inside the cabinet body (4), absorbing material (3) paste in reagent bottle (1) bottom, RFID signal receiver (6) are installed outside the cabinet body (4), and RFID label (2) tongue and reagent bottle bottom absorbing material (3) recess correspond on the cabinet body.

2. The RFID reagent cabinet applying the wave-absorbing material as claimed in claim 1, wherein the number of system scanning times of the alarm system (5) is 1-6 minutes/time, and the number of receiving times when an alarm is given is limited as follows: 30-180 times.

3. The RFID reagent cabinet applying the wave-absorbing material as claimed in claim 1, wherein the wave-absorbing material mainly comprises: any one of ferrite wave-absorbing materials, magnetic iron nano wave-absorbing materials, silicon carbide wave-absorbing materials or graphene wave-absorbing materials.

4. The RFID reagent cabinet applying the wave-absorbing material as claimed in claim 1, characterized in that the ferrite wave-absorbing material (3) is a composite material made of oxides of Mn, Zn or Ni elements.

5. The RFID reagent cabinet applying the wave-absorbing material as claimed in claim 1, wherein the reagent cabinet mainly comprises: the RFID passive tag, the RFID receiver and the wave-absorbing material are divided into the following parts according to frequency: high frequency, ultra high frequency or microwave.

6. The RFID reagent cabinet applying the wave-absorbing material according to claim 1, wherein the wave-absorbing material with a shielding waveband of 1MHz to 100MHz shields the high-frequency RFID signal; shielding the ultrahigh frequency RFID signal by the wave-absorbing material with the shielding waveband of 30MHz-1000 MHz; the microwave RFID signal is shielded by the wave-absorbing material with the shielding wave band of 1GHz-3 GHz.