CN116432673A - Chemical intelligent cabinet based on radio frequency identification - Google Patents

Chemical intelligent cabinet based on radio frequency identification Download PDF

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Publication number
CN116432673A
CN116432673A CN202310412358.4A CN202310412358A CN116432673A CN 116432673 A CN116432673 A CN 116432673A CN 202310412358 A CN202310412358 A CN 202310412358A CN 116432673 A CN116432673 A CN 116432673A
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chemical
module
main control
cabinet
user
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刘俐
雷斯文
胡佳欣
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Dalian Polytechnic University
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Dalian Polytechnic University
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/30—Computing systems specially adapted for manufacturing

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Abstract

The invention relates to the technical field of intelligent cabinets, and provides a chemical intelligent cabinet based on radio frequency identification, which comprises: the electronic tag cabinet comprises a cabinet body, a plurality of electronic tags, a main control module, a chemical identification module and a user identity authentication module, wherein the main control module, the chemical identification module and the user identity authentication module are arranged on the cabinet body; the cabinet body is provided with a touch liquid crystal screen and a cabinet door; an electric control lock is arranged on the cabinet door; the chemical identification module includes: an RFID reader and a plurality of antennas; the RFID reader is arranged on the cabinet body, and a plurality of antennas are correspondingly arranged in each cabinet lattice; the touch control liquid crystal screen acquires identity authentication information of a user; the main control module generates an identity authentication instruction according to the identity authentication information and sends the identity authentication instruction to the user identity authentication module; the user identity authentication module performs identity authentication and feeds an identity authentication result back to the main control module; and when the identity authentication result is successfully verified, the main control module controls the electric control lock to open the cabinet door. According to the invention, the RFID is used for rapidly identifying the chemical, so that the intelligent degree of the chemical cabinet is improved.

Description

Chemical intelligent cabinet based on radio frequency identification
Technical Field
The invention relates to the technical field of intelligent cabinets, in particular to a chemical intelligent cabinet based on radio frequency identification.
Background
With the development of modern chemical industry, the usage amount of chemicals in the universities and colleges as research and development sites of high and new chemical technologies is increasing. These universities often store a wide variety of chemicals that are complex in nature, toxic, hazardous, flammable, and volatile. Meanwhile, laboratory personnel flow densely, the chemical use amount is large, and fire, explosion and toxic gas leakage can be caused by slight carelessness, so that casualties and property loss are caused to a certain extent. Therefore, chemical laboratories in universities have strict requirements in terms of chemical use and storage. However, in view of the lack of efficient management means in most laboratories, the conventional chemical management methods in universities are difficult to meet the daily use demands of students, and also bring great workload to the management staff.
Currently, conventional chemical storage cabinets are made of metal in the form of a plurality of drawers and accessories required to store chemicals, such as chemical bottles, chemical labels, chemical classifications, and the like. Conventional chemical cabinets may also include a locked door or door panel to protect the chemicals stored inside from unauthorized access or theft. In addition, the cabinet may be labeled with chemical names and other relevant information to help the user quickly find the desired chemicals. There are the following problems: 1. safety risk: the traditional chemical cabinet usually only uses simple safety measures such as locks and the like to protect stored medicines, and is easy to take the chemical by unauthorized opening of the cabinet, so that the loss is caused to a laboratory; 2. the management is inconvenient: the traditional chemical cabinet requires a great deal of manpower and time for the manual management of chemical medicines, classification, identification and other works, and the problems of disordered classification, mishandling and the like of the chemical medicines are easy to occur; the method can not automatically form chemical taking and returning records, and has the defects of low fineness, low safety, low intelligent degree and the like of a management mode. Therefore, with the development of the digitizing technology, the conventional chemical cabinets are gradually replaced by the digital chemical management equipment to improve the safety, management efficiency and intelligence of chemicals.
Disclosure of Invention
The invention mainly solves the technical problems that in the prior art, a user needs manual recording for taking medicines and medicines in a cabinet are difficult to classify and count, and provides an intelligent chemical cabinet based on radio frequency identification, which can be used for authenticating the identity of the user, and can be used for rapidly identifying the chemicals through RFID, so that the borrowing and returning operation and the warehouse entry recording of the medicines are completed, and the intelligent degree of the chemical cabinet is improved.
The invention provides a chemical intelligent cabinet based on radio frequency identification, which comprises: the electronic tag cabinet comprises a cabinet body, a plurality of electronic tags, a main control module, a chemical identification module and a user identity authentication module, wherein the main control module, the chemical identification module and the user identity authentication module are arranged on the cabinet body;
the electronic tags are respectively arranged on the outer packages of the chemicals;
the touch liquid crystal display and the cabinet door are arranged on the cabinet body, and a plurality of cabinet grids are arranged in the cabinet body; an electric control lock is arranged on the cabinet door;
the chemical identification module includes: an RFID reader and a plurality of antennas; the RFID reader is arranged on the cabinet body, and a plurality of antennas are correspondingly arranged in each cabinet lattice;
the touch liquid crystal screen acquires identity authentication information of a user and sends the identity authentication information to the main control module;
the main control module generates an identity authentication instruction according to the identity authentication information and sends the identity authentication instruction to the user identity authentication module;
the user identity authentication module performs identity authentication and feeds an identity authentication result back to the main control module;
the main control module controls the electric control lock to open the cabinet door when the identity authentication result is verified successfully; when the authentication result fails to verify, sending a verification failure prompt to the touch liquid crystal screen;
the chemical identification module scans the chemical in the corresponding cabinet after a user takes or returns the chemical, and sends the scanning information to the main control module;
and the main control module compares the current scanning information with the last scanning information, determines that the user takes the chemical information or puts back the chemical information, and updates the chemical borrowing and returning record.
Preferably, a storage module is also arranged on the cabinet body;
the storage module is in signal connection with the main control module; the storage module is used for storing chemical borrowing and returning records, chemical lists and chemical details;
the main control module is in signal connection with the background management system; and the background management system is in signal connection with the cloud server.
Preferably, a camera is arranged on the cabinet body;
the camera collects the user portrait information and sends the user portrait information to the main control module; the user portrait information comprises a portrait photo or a dynamic human image of the user;
and the main control module generates an identity authentication instruction according to the portrait information of the user.
Preferably, a face recognition UI interface is displayed on the touch liquid crystal screen;
the face recognition UI interface collects the user portrait information and the person name, and uploads the information and the person name to the main control module for face recognition comparison.
Preferably, the user identity authentication module performs identity authentication according to the trained user identification model;
the training process of the user identification model comprises the following steps:
acquiring a training set of user portrait information;
establishing a FaceNet network model, and selecting a MobileNet as a backbone network;
carrying out face detection on each human image photo or human dynamic image in the training set to obtain key points of the human face;
encoding the key points of the human face, and outputting 128-dimension codes for training; in the training process, the triplet consists of two face images from one person and a third image from another person, the training aims at that the Euclidean distance between face pairs from the same person is far smaller than the Euclidean distance between face pairs from different persons, and then the feature points of the faces 128 of the faces are calculated respectively; wherein 2 are the same person and 1 is another person;
continuously adjusting the weight of the network model, and calculating the Euclidean distance according to the following formula, so that the vectors of the same person are closer and the vectors of different persons are farther;
Figure BDA0004183642180000031
wherein the two vectors are x (x 1 ,x 2 ,…,x n ) And y (y) 1 ,y 2 ,…,y n )。
Preferably, a weighing module is arranged in the cabinet body or each cabinet lattice is internally provided with the weighing module;
the weighing module acquires the weight of the chemical after the user takes the chemical or before the chemical is put back, and sends the weight to the main control module; the main control module updates the weight of the weighed chemicals to the chemical borrowing and returning record according to the determined chemical information taken by the user or the chemical information returned by the user;
or the weighing module is used for weighing the chemical after the user returns the chemical each time and sending the chemical to the main control module; and the main control module updates the weight of the chemical into the chemical borrowing and returning record.
Preferably, the touch liquid crystal screen acquires a command of checking the chemical medicine of a user and sends the command to the main control module;
the main control module is used for retrieving the chemical list from the storage module and feeding back the chemical list to the touch liquid crystal screen;
the touch screen displays a list of chemicals and each chemical has chemical details including, but not limited to, drug name, concentration, quantity, library reserves, manufacturer.
Preferably, the main control module sends the information stored in the storage module to a background management system;
the background management system configures user information;
and the background management system synchronizes all stored information to the cloud server.
Preferably, the method further comprises: a communication module;
the communication module adopts network port communication and/or serial communication respectively;
the communication module is respectively connected with the main control module and the background management system.
Preferably, a power supply module and a storage battery are also arranged on the cabinet body;
the power supply module and the storage battery are respectively and electrically connected with the main control module;
the power supply module is externally connected with a 220V power supply.
According to the intelligent chemical cabinet based on radio frequency identification, the high-efficiency safety management of laboratory chemicals is realized by adopting the technologies of the Internet of things such as RFID (radio frequency identification), face recognition and the like and through the automatic identification, positioning and recording of the user identity and the intelligent control of the storage space of the chemicals. The system can better authenticate the identity of a user through face recognition, can also rapidly identify chemicals through RFID, distinguish chemicals with different properties, separate and store corrosive, conventional and other medicines, finish borrowing and returning operation and warehousing record of the medicines, has high intelligent degree and complete functions, can remarkably improve the chemical management capability of a laboratory, prevents the chemicals from being taken by unauthorized opening the cabinet, and avoids improper storage of dangerous medicines. According to the invention, by using the RFID technology, the consumption of a great deal of time for a traditional manager to arrange the medicine cabinet is reduced, the larger workload of the manager is reduced, the standardization, safety and fine management of laboratory chemicals can be promoted, and the application prospect is wide. The invention uses Web application framework and face recognition technology to increase the use safety and guarantee of the medicine cabinet operated by the user, thereby being beneficial to standardized and refined management of laboratory chemicals.
Drawings
Fig. 1 is a schematic diagram of module connection of a radio frequency identification-based chemical intelligent cabinet provided by the invention.
Detailed Description
In order to make the technical problems solved by the invention, the technical scheme adopted and the technical effects achieved clearer, the invention is further described in detail below with reference to the accompanying drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present invention are shown in the accompanying drawings.
As shown in fig. 1, a radio frequency identification-based chemical intelligent cabinet provided by an embodiment of the present invention includes: the electronic tag cabinet comprises a cabinet body, a plurality of electronic tags, a main control module, a chemical identification module and a user identity authentication module, wherein the main control module, the chemical identification module and the user identity authentication module are arranged on the cabinet body;
the electronic tags are respectively arranged on the outer packages of the chemicals; each chemical has an electronic tag, and the electronic tag has EPC code, and records information of the chemical.
The touch liquid crystal display and the cabinet door are arranged on the cabinet body, and a plurality of cabinet grids are arranged in the cabinet body; and an electric control lock is arranged on the cabinet door.
The electric control lock part mainly comprises an electric control lock head and an access control power supply, the specific unlocking process is to output high-low level through a serial port on the access control power supply connected to the GPIO, the normally open or normally closed port of the output port connected with the electric control lock head is controlled to control the expansion of a lock tongue of the electric control lock head, the door opening and closing function is realized, the attention is required to be paid to the power supply output end GND and the switch control signal input end PUSH to connect a door opening button and door opening and closing signals output by the access control, if the control output of equipment is an electric signal, the voltage is required to be between 5 and 12V.
The chemical identification module includes: an RFID reader and a plurality of antennas; the RFID reader is arranged on the cabinet body, and a plurality of antennas are correspondingly arranged in each cabinet lattice.
The hardware of the intelligent cabinet adopts a modularized design, each module is responsible for realizing some functions of the intelligent cabinet, and the main control module is connected with other modules to control the other modules, so that the hardware of the intelligent cabinet is convenient to maintain and update due to the modularized design. The main control module controls the user identity authentication module through the serial port 2 to verify the user identity; controlling an RFID reader through a serial port 3, and identifying and detecting chemicals; the electric control lock is controlled through the serial port 1, and the intelligent cabinet is subjected to cabinet door opening and closing operation. The master control module adopts an RK3288 chip, which is a high-performance application processor. The four-core ARM Cortex-A17 architecture is adopted, and the four-core ARM Cortex-A17 architecture has the greatest characteristics that the four-core ARM Cortex-A15 architecture is adopted as the Cortex-A15 architecture, so that the performance improvement has an immediate effect. The GPU adopts a Mali T76X series GPU, the core of the Mali T764 is characterized in that a third generation Midgard architecture is adopted, and compared with the former generation, more ALU units, registers, caches and the like are added, so that the normal operation of each function of the intelligent cabinet can be satisfied.
The user wants to open the cabinet door, take or return the chemical, and needs to perform identity authentication firstly, and then open the cabinet door after the authentication is passed; after the user takes or returns the chemical, the intelligent cabinet scans the changed chemical information and updates the chemical borrowing and returning record. The specific process is as follows:
the touch liquid crystal screen acquires identity authentication information of a user and sends the identity authentication information to the main control module; the main control module generates an identity authentication instruction according to the identity authentication information and sends the identity authentication instruction to the user identity authentication module; the user identity authentication module performs identity authentication and feeds an identity authentication result back to the main control module; the main control module controls the electric control lock to open the cabinet door when the identity authentication result is verified successfully; and when the authentication result fails to verify, sending a verification failure prompt to the touch liquid crystal screen to prompt that the authentication fails. The background management system is provided with information of a user capable of operating the intelligent cabinet and is synchronized to a user identity authentication module of the intelligent cabinet, and the user identity authentication module compares according to pre-stored user identity information to perform identity authentication.
The chemical identification module scans the chemical in the corresponding cabinet after a user takes or returns the chemical, and sends the scanning information to the main control module; and the main control module compares the current scanning information with the last scanning information, determines that the user takes the chemical information or puts back the chemical information, and updates the chemical borrowing and returning record.
Specifically, the main control module transmits chemicals in the instruction scanning cabinet to the antenna, and the antenna scans EPC codes of the tag. The RFID reader decodes the EPC code and sends decoding information to the main control module; the main control module compares the current scanning information with the last scanning information, determines that the user takes the chemical information or puts back the chemical information, and prompts the user to store corrosive, conventional medicines and other medicines separately according to the type information of the identified chemical. The main control module synchronizes the updated chemical borrowing and returning record to the background management system.
In order to improve the accuracy of chemical identification, the invention uses a plurality of antennas to scan the electronic tag, but data received by the antennas can cause data collision if the data are returned at the same time, thereby influencing the identification effect. Therefore, the radio frequency switch is arranged, the main control module controls the radio frequency switch to start each antenna channel to acquire radio frequency data in time sequence, and data collision is avoided.
In the invention, a storage module is also arranged on the cabinet body; the storage module is in signal connection with the main control module; and the storage module is used for storing chemical borrowing and returning records, chemical lists and chemical details.
The main control module is in signal connection with the background management system; and the background management system is in signal connection with the cloud server. The background management system sets information of a user capable of operating the intelligent cabinet, and performs information input and personnel management. The users are divided into two types, namely a common user and an administrator, wherein the common user can only manage personal information thereof, and the specific functions are to view and modify personal information such as names, mobile phone numbers and the like. The administrator has all rights of the common users, and can manage the common users in the system besides managing personal information, including giving rights, checking the personal information of the users, modifying the personal information of the users, adding users and the like. The intelligent cabinet can receive the control instruction of the cloud server, and an administrator can correspondingly adjust the intelligent cabinet according to the operation data fed back by the intelligent cabinet.
The main control module sends the information stored in the storage module to a background management system; the background management system configures user information; and the background management system synchronizes all stored information to the cloud server.
Further, a camera is arranged on the cabinet body; the camera collects the user portrait information and sends the user portrait information to the main control module; the user portrait information comprises a portrait photo or a dynamic human image of the user; and the main control module generates an identity authentication instruction according to the portrait information of the user. A face recognition UI interface is displayed on the touch liquid crystal screen; the face recognition UI interface collects the user portrait information and the person name, and uploads the information and the person name to the main control module for face recognition comparison.
According to the invention, whether the user is a real living body or not can be verified according to the portrait photo or the dynamic image of the human body (living body detection) of the user, which is shot by the user in front of the camera, and the living body detection can be based on the living body detection of the information such as distortion, moire, reflection and the like possibly existing in the face image, so as to carry out identity authentication. The adoption of living body detection ensures that no person can use the photo to steal information of other people to realize login operation.
Further, the user identity authentication module performs identity authentication according to the trained user identification model;
the training process of the user identification model comprises the following steps:
acquiring a training set of user portrait information;
establishing a FaceNet network model, and selecting a MobileNet as a backbone network;
carrying out face detection on each human image photo or human dynamic image in the training set to obtain key points of the human face;
encoding the key points of the human face, and outputting 128-dimension codes for training; in the training process, the triplet consists of two face images from one person and a third image from another person, the training aims at that the Euclidean distance between face pairs from the same person is far smaller than the Euclidean distance between face pairs from different persons, and then 128D descriptors of the faces are calculated respectively, namely 128 dimension feature points on the faces; wherein 2 are the same person and 1 is another person;
continuously adjusting the weight of the network model, and calculating the Euclidean distance according to the following formula, so that the vectors of the same person are closer and the vectors of different persons are farther;
Figure BDA0004183642180000081
wherein the two vectors are x (x 1 ,x 2 ,…,x n ) And y (y) 1 ,y 2 ,…,y n )。
On the basis of the scheme, a weighing module is arranged in the cabinet body or is arranged in each cabinet lattice.
The weighing module acquires the weight of the chemical after the user takes the chemical or before the chemical is put back, and sends the weight to the main control module; the main control module updates the weight of the weighed chemicals to the chemical borrowing and returning record according to the determined chemical information taken by the user or the chemical information returned by the user; or the weighing module is used for weighing the chemical after the user returns the chemical each time and sending the chemical to the main control module; and the main control module updates the weight of the chemical into the chemical borrowing and returning record.
The invention provides two weighing modes, wherein after the weighing is carried out by adopting a single weighing module, the weighing is combined with the chemical information taken by a determined user or the chemical information put back, or each cabinet is used for weighing, so that the chemical information and the usage amount are determined. The amount of the chemical used can be obtained from the chemical weight at this time and the chemical weight at the last time.
Specifically, the weighing module includes: the weighing module can count the usage amount of chemical drugs after entering and exiting the warehouse to generate records. When the weighing module singlechip and the main control module are in serial port communication, the RXD interface of the weighing module singlechip is connected with the TXD interface of the main control module, and the TXD interface of the weighing module singlechip is connected with the RXD interface of the main control module. The RXD interface is in data communication with the TXD interface, the RXD interface is for receiving data, and the TXD interface is for transmitting data.
The touch liquid crystal screen acquires a chemical medicine checking instruction of a user and sends the chemical medicine checking instruction to the main control module; the main control module is used for retrieving the chemical list from the storage module and feeding back the chemical list to the touch liquid crystal screen; the touch screen displays a list of chemicals and each chemical has chemical details including, but not limited to, drug name, concentration, quantity, library reserves, manufacturer. The user may directly select a drug in the list of chemicals and the user may deposit or withdraw the drug.
The chemical list is the basis of medicine management and is used for displaying the names, positions and stock quantities of the chemical stored currently in the intelligent cabinet, each type of medicine is stored in a cabinet division mode, each cabinet is managed independently, and the display positions in the medicine list correspond to the actual positions of the medicines in the intelligent medicine cabinet one by one, so that the management is convenient. Meanwhile, the user can update the medicine list through functions of warehousing medicines, ex-warehouse medicines, deleting medicines and the like, and can also quickly find the medicine positions through medicine names.
If no medicine to be stored exists in the intelligent cabinet, adding the medicine to be stored into the medicine list, and then carrying out subsequent operation. After the medicine access operation is completed, the intelligent cabinet main control module records operation information including medicine names, access quantity, user names and the like and uploads the operation information to the background management system for statistics.
The invention relates to a radio frequency identification-based intelligent chemical cabinet, which further comprises: a communication module; the communication module adopts network port communication and/or serial communication respectively; the communication module is respectively connected with the main control module and the background management system. The serial communication port adopts RS232/RS485; the information transmission mode is an asynchronous mode, the start bit is 1 bit, the data bit is 8 bits, the stop bit is 1 bit, no verification exists, and the data transmission rate is 57600kb/s; the communication mode adopts a master-slave mode, the upper computer calls the lower computer and issues a command, the lower computer returns response information after receiving the command, and the upper computer 1S can not receive the response of the lower computer or receives the response information error, so that the communication process is considered to be failed. Meanwhile, it is also required to pay attention to that the communication data are all 16-system data transmission. For network port (TCP/IP) connection, the specific steps are that the intelligent cabinet network cable is inserted into the same router of the configuration computer, RFID configuration software is opened on the configuration computer, and connection is selected and confirmed by searching the IP address of the upper computer connected with the equipment.
In addition, a power supply module and a storage battery are also arranged on the cabinet body; the power supply module and the storage battery are respectively and electrically connected with the main control module; the power supply module is externally connected with a 220V power supply. The power can be supplied by a 220V power supply, and meanwhile, the storage battery of the equipment can prevent power failure.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments is modified or some or all of the technical features are replaced equivalently, so that the essence of the corresponding technical scheme does not deviate from the scope of the technical scheme of the embodiments of the present invention.

Claims (10)

1. Chemical intelligent cabinet based on radio frequency identification, characterized by comprising: the electronic tag cabinet comprises a cabinet body, a plurality of electronic tags, a main control module, a chemical identification module and a user identity authentication module, wherein the main control module, the chemical identification module and the user identity authentication module are arranged on the cabinet body;
the electronic tags are respectively arranged on the outer packages of the chemicals;
the touch liquid crystal display and the cabinet door are arranged on the cabinet body, and a plurality of cabinet grids are arranged in the cabinet body; an electric control lock is arranged on the cabinet door;
the chemical identification module includes: an RFID reader and a plurality of antennas; the RFID reader is arranged on the cabinet body, and a plurality of antennas are correspondingly arranged in each cabinet lattice;
the touch liquid crystal screen acquires identity authentication information of a user and sends the identity authentication information to the main control module;
the main control module generates an identity authentication instruction according to the identity authentication information and sends the identity authentication instruction to the user identity authentication module;
the user identity authentication module performs identity authentication and feeds an identity authentication result back to the main control module;
the main control module controls the electric control lock to open the cabinet door when the identity authentication result is verified successfully; when the authentication result fails to verify, sending a verification failure prompt to the touch liquid crystal screen;
the chemical identification module scans the chemical in the corresponding cabinet after a user takes or returns the chemical, and sends the scanning information to the main control module;
and the main control module compares the current scanning information with the last scanning information, determines that the user takes the chemical information or puts back the chemical information, and updates the chemical borrowing and returning record.
2. The radio frequency identification based intelligent chemical cabinet according to claim 1, wherein a storage module is further arranged on the cabinet body;
the storage module is in signal connection with the main control module; the storage module is used for storing chemical borrowing and returning records, chemical lists and chemical details;
the main control module is in signal connection with the background management system; and the background management system is in signal connection with the cloud server.
3. The intelligent chemical cabinet based on radio frequency identification according to claim 1, wherein a camera is arranged on the cabinet body;
the camera collects the user portrait information and sends the user portrait information to the main control module; the user portrait information comprises a portrait photo or a dynamic human image of the user;
and the main control module generates an identity authentication instruction according to the portrait information of the user.
4. The radio frequency identification based chemical intelligent cabinet according to claim 3, wherein a face recognition UI interface is displayed on the touch liquid crystal screen;
the face recognition UI interface collects the user portrait information and the person name, and uploads the information and the person name to the main control module for face recognition comparison.
5. The radio frequency identification based chemical intelligent cabinet according to claim 3, wherein the user identity authentication module performs identity authentication according to a trained user identification model;
the training process of the user identification model comprises the following steps:
acquiring a training set of user portrait information;
establishing a FaceNet network model, and selecting a MobileNet as a backbone network;
carrying out face detection on each human image photo or human dynamic image in the training set to obtain key points of the human face;
encoding the key points of the human face, and outputting 128-dimension codes for training; in the training process, the triplet consists of two face images from one person and a third image from another person, the training aims at that the Euclidean distance between face pairs from the same person is far smaller than the Euclidean distance between face pairs from different persons, and then the feature points of the faces 128 of the faces are calculated respectively; wherein 2 are the same person and 1 is another person;
continuously adjusting the weight of the network model, and calculating the Euclidean distance according to the following formula, so that the vectors of the same person are closer and the vectors of different persons are farther;
Figure FDA0004183642160000021
wherein the two vectors are x (x 1 ,x 2 ,…,x n ) And y (y) 1 ,y 2 ,…,y n )。
6. The radio frequency identification based intelligent chemical cabinet according to claim 1, wherein a weighing module is arranged in the cabinet body or each cabinet lattice is internally provided with a weighing module;
the weighing module acquires the weight of the chemical after the user takes the chemical or before the chemical is put back, and sends the weight to the main control module; the main control module updates the weight of the weighed chemicals to the chemical borrowing and returning record according to the determined chemical information taken by the user or the chemical information returned by the user;
or the weighing module is used for weighing the chemical after the user returns the chemical each time and sending the chemical to the main control module; and the main control module updates the weight of the chemical into the chemical borrowing and returning record.
7. The radio frequency identification based chemical intelligent cabinet according to claim 2, wherein the touch liquid crystal screen obtains a chemical checking instruction of a user and sends the chemical checking instruction to the main control module;
the main control module is used for retrieving the chemical list from the storage module and feeding back the chemical list to the touch liquid crystal screen;
the touch screen displays a list of chemicals and each chemical has chemical details including, but not limited to, drug name, concentration, quantity, library reserves, manufacturer.
8. The radio frequency identification based chemical intelligent cabinet according to claim 2, wherein the main control module sends information stored in the storage module to a background management system;
the background management system configures user information;
and the background management system synchronizes all stored information to the cloud server.
9. The radio frequency identification based chemical intelligent cabinet of claim 1, further comprising: a communication module;
the communication module adopts network port communication and/or serial communication respectively;
the communication module is respectively connected with the main control module and the background management system.
10. The intelligent cabinet for chemicals based on radio frequency identification according to claim 1, wherein a power supply module and a storage battery are further arranged on the cabinet body;
the power supply module and the storage battery are respectively and electrically connected with the main control module;
the power supply module is externally connected with a 220V power supply.
CN202310412358.4A 2023-04-18 2023-04-18 Chemical intelligent cabinet based on radio frequency identification Pending CN116432673A (en)

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CN116432673A true CN116432673A (en) 2023-07-14

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