CN220252585U

CN220252585U - RFID article inspection device

Info

Publication number: CN220252585U
Application number: CN202322025302.1U
Authority: CN
Inventors: 孙晓东; 王治强
Original assignee: Dalian Neusoft University of Information
Current assignee: Dalian Neusoft University of Information
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2023-12-26
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses an RFID (radio frequency identification) article inspection device which comprises a device frame body, an RFID antenna, a weighing sensor, an RFID electronic tag, a control module and a mobile client, wherein the RFID antenna is arranged on the device frame body; the RFID antenna is arranged on the side wall inside the device frame body; the control module is electrically connected with the weighing sensor, the RFID card reader module and the display screen respectively; the mobile client is in communication with the control module. The RFID technology can be used for reading the characteristics of RFID electronic tags in batches, so that the problem that people need to spend redundant time and energy for manual check and confirmation in fast-paced work and life, and the necessary articles are omitted due to time tension and other reasons is solved; the database of daily necessary articles can be set by combining with the remote operation of the mobile terminal, and the data of the set necessary articles are transmitted to the control module, so that the functions of intelligently counting the articles and prompting the forgetting to take the articles are realized.

Description

RFID article inspection device

Technical Field

The utility model relates to the technical field of RFID, in particular to an RFID article inspection device.

Background

The object counting is to check the object according to the object list to obtain the matching information of the object and the list, and the object counting method is widely applied to aspects of warehouse logistics, workshop object counting and the like. Daily necessities are usually checked in advance and then put into bags for going out, such as schoolbags for students, backpacks for office workers, photographic backpacks for photographers, traveling cases for business trips or travel, tool cases for professionals, and the like.

However, as modern life pace is faster and faster, many things are carried around. Such as: textbooks needed to be used today in student schoolbags; wallet, key, work card, etc. in the backpack; when the camera, the lens and the accessories in the photographic bag and the camera, the lens and the accessories in the photographic bag are in hurry, the important articles are often fallen down due to time tension and other reasons, and the important articles are not carried until the use is needed, for example, the important articles are not carried when the user goes out for study, work or travel, and the user goes out to the destination to check the articles, so that the trouble or the obstruction is caused to work or life.

At present, the checking mode of the daily necessities is manually checked and confirmed, and excessive time and effort are required for manually checking and confirming, so that people tend to neglect necessary articles due to time tension and other reasons in fast-paced work and life.

Disclosure of Invention

The utility model provides an RFID article inspection device to overcome the technical problems.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

an RFID article inspection device comprises a device frame, an RFID antenna, a weighing sensor, an RFID electronic tag, an RFID card reader module, a control module and a mobile client;

the RFID electronic tag is used for being attached to an article to send identified article electronic tag information;

the RFID antenna is arranged on the side wall inside the device frame;

the RFID antenna is used for receiving and sending the article electronic tag information sent by the RFID electronic tag; the RFID antenna sends the electronic tag information of the article to an RFID card reader module for reading;

the read electronic tag information of the article is sent to a control module;

the control module is electrically connected with the weighing sensor, the RFID card reader module and the display screen respectively;

the weighing sensor is arranged at the bottom of the device frame body and is used for acquiring weight signals according to articles in the device frame body;

the control module is used for controlling the RFID antenna according to the weight signal and reading the electronic tag information of the article in the device frame;

displaying the read electronic tag information of the article through a display screen;

the mobile client is in communication connection with the control module, and the control module can preset and input electronic tag information of each required article through the mobile client and name and store the electronic tag information;

the mobile client is used for setting the necessary articles for going out the next day according to the named and stored required articles;

and the control module checks whether the articles are missed or not according to the electronic tag information of the articles necessary for the next-day trip and the electronic tag information of the articles read by the RFID antenna.

Further, the control module at least comprises a main control module arranged on a main control circuit board, and a power supply module, a communication module, a charging module and a detection module which are connected with the main control module;

the circuit of the power supply module comprises a voltage stabilizing chip U1, a power supply chip U4 and a first connecting terminal CN2;

the pin 3 of the voltage stabilizing chip U1 is connected with one end of the first capacitor C1 and +5V wiring terminals, the pin 1 of the voltage stabilizing chip U1 is connected with the other end of the first capacitor C1, one end of the second capacitor C2, one end of the third capacitor C3 and GND wiring terminals, the pin 2 of the voltage stabilizing chip U1 is connected with the other end of the second capacitor C2, the other end of the third capacitor C3, one end of the eighth resistor R8 and 3.3V wiring terminals, the other end of the eighth resistor R8 is connected with one end of the first diode U2, and the other end of the first diode U2 is grounded;

the pin 2 of the power chip U4 is connected with the pin 7 of the power chip U4, one end of the fifth capacitor C5, one end of the fourth capacitor C4 and one end of the switch J1, the other end of the fifth capacitor C5 is grounded with the other end of the fourth capacitor C4, the other end of the wiring switch J1 is connected with the pin 2 of the first wiring terminal CN2, and the pin 1 of the first wiring terminal CN2 is grounded;

the pin 4 of the power chip U4 is grounded to one end of the second diode U8, the other end of the second diode U8, the pin 3 of the power chip U4, and one end of the inductor U5 are connected, the other end of the inductor U5, one end of the second resistor R2, one end of the sixth capacitor C6, and one end of the seventh capacitor C7 are connected, the other end of the second resistor R2 is connected to the pin 5 of the power chip U4 and one end of the first resistor R1, and the other ends of the first resistor R1, the sixth capacitor C6, and the other end of the seventh capacitor C7 are grounded.

Further, the circuit of the main control module comprises a control chip U7, a first crystal resonator X1, a second crystal resonator Y1, a second wiring terminal CN3 and a third wiring terminal CN4;

the pin 3 of the control chip U7 is connected with one end of the second crystal resonator Y1 and one end of the ninth capacitor C9, the other end of the second crystal resonator Y1 is connected with the pin 4 of the control chip U7 and one end of the tenth capacitor C10, the other end of the tenth capacitor C10 is grounded with the other end of the ninth capacitor C9, the pin 5 of the control chip U7 is connected with one end of the first crystal resonator X1 and one end of the twelfth capacitor C12, the other end of the first crystal resonator X1 is connected with the pin 6 of the control chip U7 and one end of the eleventh capacitor C11, and the other end of the eleventh capacitor C11 is grounded with the other end of the twelfth capacitor C12;

the pin 7 of the control chip U7 is connected with one end of an eighth capacitor C8, one end of a third resistor R3 and one end of a key switch S1, the other end of the third resistor R3 is grounded, and the other end of the eighth capacitor C8 is grounded with the other end of the key switch S1; the pin 44 of the control chip U7 is connected with the pin 2 of the second connection terminal CN3, the pin 1 of the second connection terminal CN3 is grounded, and the pin 3 of the second connection terminal CN3 is connected with the VCC pin; the pin 3 of the third connection terminal CN4 is connected with the pin 34 of the control chip U7, the pin 2 of the third connection terminal CN4 is connected with the pin 37 of the control chip U7, the pin 1 of the third connection terminal CN4 is grounded, and the pin 4 of the third connection terminal CN4 is connected with the VCC pin;

the pin 12 of the control chip U7 is connected with the pin 2 of the RFID wiring terminal JP1, the pin 13 of the control chip U7 is connected with the pin 3 of the RFID wiring terminal JP1, the wiring terminal 1 of the RFID wiring terminal JP1 is connected with the 3.3V wiring terminal, the wiring terminal 4 of the RFID wiring terminal JP1 is grounded, and the wiring terminal 5 of the RFID wiring terminal JP1 is connected with the VCC pin;

the pin 2 of the binding post JP2 of the weighing sensor is connected with the pin 19 of the control chip U7, the pin 3 of the binding post JP2 of the weighing sensor is connected with the pin 18 of the control chip U7, the pin 1 of the binding post JP2 of the weighing sensor is grounded, and the pin 4 of the binding post JP2 of the weighing sensor is connected with the VCC pin.

Further, the communication module comprises a communication chip U9, a fourth resistor R4 and a thirteenth capacitor C13;

the pin 1 of the communication chip U9 is connected with the pin 30 of the control chip U7, the pin 2 of the communication chip U9 is connected with the pin 31 of the control chip U7, the pin 11 of the communication chip U9 is connected with one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected with the VCC pin; the pin 12 of the communication chip U9 is connected to one end of the thirteenth capacitor C13 and the VCC pin, and the other ends of the pin 13 of the communication chip U9 and the thirteenth capacitor C13 are grounded.

Further, the circuit of the detection module includes a fourteenth capacitor C14, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and a third diode U8;

one end of the fourteenth capacitor C14, one end of the fifth resistor R53 and one end of the sixth resistor R6 are connected to the pin 10 of the control chip U7, the other end of the fourteenth capacitor C14, the other end of the fifth resistor R53 and one end of the third diode U8 are grounded, and the other end of the third diode U8 and one end of the sixth resistor R6 are connected to the power module.

Further, the circuit of the charging module includes a charging chip TU1, a ninth resistor R9, a tenth resistor R10, and a connector U11;

the pin 1 of the charging chip TU1, one end of the twelfth resistor R12 and the pin 3 of the charging chip TU1 are grounded, the other end of the twelfth resistor R12 is connected with the pin 2 of the charging chip TU1, the pin 5 of the charging chip TU1 is connected with one end of the seventeenth capacitor C17, one end of the eighteenth capacitor C18 and the power supply module, and the other end of the seventeenth capacitor C17 is grounded with the other end of the eighteenth capacitor C18; the pin 4 of the charging chip TU1 is connected to the pin 8 of the charging chip TU1, one end of the fifteenth capacitor C15, one end of the sixteenth capacitor C16, one end of the ninth resistor R9, one end of the tenth resistor R10 and one end of the eleventh resistor R11, and the other end of the fifteenth capacitor C15 is grounded to the other end of the sixteenth capacitor C16; the other end of the tenth resistor R10 is connected with one end of a fourth diode L4, the other end of the fourth diode L4 is connected with a pin 7 of the charging chip TU1, the other end of the eleventh resistor R11 is connected with one end of a fifth diode L5, and the other end of the fifth diode L5 is connected with a pin 6 of the charging chip TU 1; the other end of the ninth resistor R9 is connected to the terminal 1 of the connector U11, and the terminal 4 of the connector U11 is grounded.

Further, the main control module further comprises a speaker BU1, one end of the speaker BU1 is connected with a pin 20 of the control chip U7, and the other end of the speaker BU1 is connected with a VCC pin;

the loudspeaker BU1 is used for providing an audible warning prompt when the main control module confirms that the article is missing.

The beneficial effects are that: the utility model provides an RFID article inspection device, which adopts the RFID technology to read the characteristics of RFID electronic tags in batches, can achieve the aim of checking articles in batches, and effectively solves the problems that people need to spend redundant time and energy for manual check and confirmation in fast-paced work and life, and the negligence of necessary articles is often caused due to time tension and other reasons; the database of daily necessary articles can be set by combining with the remote operation of the mobile terminal, the data of the set necessary articles are transmitted to the control module, and the control module checks and checks whether the articles are missed or not according to the electronic tag information of the daily necessary articles set by the mobile terminal and the electronic tag information of the articles read through the RFID antenna, so that the functions of intelligently checking the articles and prompting the user to forget to take the articles are realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic diagram of an RFID item inspection device of the present utility model;

FIG. 2 is a schematic view of an RFID article inspection device according to the present utility model;

FIG. 3 is a circuit diagram of a power module of an RFID item inspection device of the present utility model;

FIG. 4 is a circuit diagram of a master control module of an RFID article inspection device according to the present utility model;

FIG. 5 is a circuit diagram of a communication module of an RFID item inspection device of the present utility model;

FIG. 6 is a circuit diagram of a charging module of an RFID item inspection device of the present utility model;

FIG. 7 is a circuit diagram of a detection module of an RFID item inspection device of the present utility model;

FIG. 8 is a circuit diagram of an RFID terminal of an RFID item inspection device of the present utility model;

FIG. 9 is a circuit diagram of a load cell terminal of an RFID item inspection device of the present utility model;

FIG. 10 is a horn circuit diagram of an RFID item inspection device of the present utility model;

fig. 11 is an expanded interface circuit diagram of an RFID article inspection device of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The embodiment provides an RFID article inspection device, as shown in fig. 1 to 2, which comprises a device frame, an RFID antenna, a weighing sensor, an RFID electronic tag, an RFID card reader module, a control module and a mobile client;

the RFID antenna is arranged on the side wall inside the device frame; the device frame body is embedded with a metal net in order to shield the interference of signals outside the device frame body;

the RFID antenna is used for receiving and sending the article electronic tag information sent by the RFID electronic tag; the RFID antenna sends the electronic tag information of the article to an RFID card reader module for reading; the read electronic tag information of the article is sent to a control module; the RFID antenna is embedded on the side wall of the inside of the device frame, and when the RFID antenna works, signals are emitted to the inside of the device frame;

the RFID card reader module acquires radio frequency signals output by the RFID antenna, and the main control module drives the RFID card reader module to read information of the RFID tags, so that a plurality of pieces of RFID electronic tag information can be read in batches in a polling mode, the list and the number of the checked articles are counted, and the real-time display is realized through the display screen; the radio frequency of a high-frequency (HF) RFID antenna is in the range of 10-15 MHz, a frequency band of 13.56MHz is generally adopted, the communication distance is within 1.5M, and the transmission power is 42dBuA/M;

the weighing sensor is used for weighing the weight of the article, playing a role of an electronic scale, simultaneously being used as a trigger for transmitting signals of the RFID antenna, and when the weighing sensor detects that the article is put into the device frame body, the RFID card reader module is started to read radio frequency signals output by the RFID antenna through the control module, so that a power saving mode is realized, and particularly, after the weight of the article is stable for 10 seconds, the RFID antenna and the display screen are closed through the control module;

the control module is used for controlling the RFID antenna according to the weight signal and reading the electronic tag information of the article in the device frame; the frequency and the signal intensity value can be adjusted according to the size of the device frame by adopting a high-frequency (HF) RFID electronic tag and an RFID electronic tag reader-writer, wherein the working process and the principle of the high-frequency (HF) RFID electronic tag and the RFID electronic tag reader-writer are all the prior known technologies and are not the utility model points of the application and are not repeated herein;

the mobile client is used for setting the necessary articles for going out the next day according to the named and stored required articles; and the control module checks whether the articles are missed or not according to the electronic tag information of the articles necessary for the next-day trip and the electronic tag information of the articles read by the RFID antenna.

The RFID electronic tag can read the characteristics of the RFID electronic tags in batches, the aim of checking the articles in batches can be achieved, and the problems that people need to spend extra time and effort to check and confirm the articles carried every day manually in fast-paced work and life, and the negligence of the necessary articles is caused due to time tension and other reasons are solved; and the database setting of daily necessary articles is realized by combining the mobile terminal, the intelligent article counting is realized, and the function of forgetting articles is prompted. Meanwhile, the weight change signal of the article in the frame body of the device is monitored through the weighing sensor, the RFID antenna is triggered to monitor through the control module, the weight information obtained by the weighing sensor in the preset time threshold is obtained, the RFID card reader module is turned on or off through the control module, and the use of a power supply is greatly saved; when the weight information acquired by the weighing sensor within the preset time threshold is unchanged, the RFID card reader module is controlled by the control module to stop working.

In a specific embodiment, the control module at least comprises a main control module installed on a main control circuit board, and a power supply module, a communication module, a charging module and a detection module which are connected with the main control module; the power supply module supplies power for the main control module and the RFID card reader module;

as shown in fig. 3, the circuit of the power module includes a voltage stabilizing chip U1, a power chip U4, and a first connection terminal CN2; AMS117 is adopted by the voltage stabilizing chip U1, VH2-HEADER2 is adopted by the first connecting terminal CN2, and TD1583 is adopted by the power supply chip U4;

In a specific embodiment, as shown in fig. 4, the circuit of the main control module includes a control chip U7, a first crystal resonator X1, a second crystal resonator Y1, a second connection terminal CN3, and a third connection terminal CN4; the control chip U7 adopts STM32F103C8T6;

as shown in fig. 8, the pin 12 of the control chip U7 is connected with the pin 2 of the RFID wiring terminal JP1, the pin 13 of the control chip U7 is connected with the pin 3 of the RFID wiring terminal JP1, the terminal 1 of the RFID wiring terminal JP1 is connected with the 3.3V terminal, the terminal 4 of the RFID wiring terminal JP1 is grounded, and the terminal 5 of the RFID wiring terminal JP1 is connected with the VCC pin;

as shown in fig. 9, the pin 2 of the connection terminal JP2 of the weighing sensor is connected with the pin 19 of the control chip U7, the pin 3 of the connection terminal JP2 of the weighing sensor is connected with the pin 18 of the control chip U7, the pin 1 of the connection terminal JP2 of the weighing sensor is grounded, and the pin 4 of the connection terminal JP2 of the weighing sensor is connected with the VCC pin.

The main control module is further reserved with a plurality of expansion interfaces, as shown in fig. 11, so that a plurality of connection terminals are conveniently externally added for being connected with a plurality of RFID antennas, the use of a plurality of RFID article inspection devices can be controlled by the same main control module in an expansion manner, and the control programming program of the plurality of RFID article inspection devices is controlled by the same main control module in an expansion manner, which is not the utility model point of the application and is not repeated herein;

in a specific embodiment, as shown in fig. 5, the communication module includes a communication chip U9, a fourth resistor R4, and a thirteenth capacitor C13; the communication chip U9 adopts a BLUE TOOTH chip (nRF 51822);

The communication module adopts common communication modes such as bluetooth or wiFi, can be connected with mobile client (smart phone or tablet computer etc.), and set up or intelligent function uses through mobile client's APP, if: a database of commonly used items is provided, etc.

In a specific embodiment, as shown in fig. 7, the circuit of the detection module includes a fourteenth capacitor C14, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and a third diode U8;

one end of the fourteenth capacitor C14, one end of the fifth resistor R53 and one end of the sixth resistor R6 are connected to the pin 10 of the control chip U7, the other end of the fourteenth capacitor C14, the other end of the fifth resistor R53 and one end of the third diode U8 are grounded, and the other end of the third diode U8 and one end of the sixth resistor R6 are connected to the power module;

the detection module is used for detecting the electric quantity of the power supply module, transmitting the detection result to the main control module, performing analog-to-digital conversion through the main control module, and displaying the electric quantity through the display screen, so that charging time can be conveniently selected according to the electric quantity prompt of the real-time checking device.

In a specific embodiment, as shown in fig. 6, the circuit of the charging module includes a charging chip TU1, a ninth resistor R9, a tenth resistor R10, and a connector U11; the charging chip TU1 adopts TP4056; the connector U11 adopts 61400416121;

In a specific embodiment, as shown in fig. 10, the main control module further includes a speaker BU1, one end of the speaker BU1 is connected to a pin 20 of the control chip U7, and the other end of the speaker BU1 is connected to a VCC pin;

the loudspeaker BU1 is used for providing an audible warning prompt when the main control module confirms that the article is missing. The loudspeaker is used for prompting the object counting result and the voice prompt of the intelligent function, such as: in the household scene, when detecting that articles such as a common schoolbag, a briefcase and an article bag are not carried, voice prompt: "XXX article missing, please check"; when the common schoolbag, briefcase, article bag and other articles which are not carried are not detected, the voice prompt is that: "articles are not missed, please go out".

The utility model discloses an article inspection device based on RFID technology, which is characterized in that necessary articles in different kinds of bags are input in advance through a mobile client, for example, RFID electronic tags of different kinds are attached to different articles, and electronic tag information corresponding to the articles is input through the mobile client; the mobile client is provided with necessary articles in bags with different dates or specified types, and the mobile client can be used for detecting bags or backpacks such as school bags, picnic outgoing carrying articles and the like, so that important articles are prevented from being forgotten, RFID labels are attached to all common articles in advance, and the articles are checked by the corresponding bags and put into a frame.

If a student's schoolbag, stick the corresponding RFID electronic tags to different textbooks or homework books, and input the corresponding RFID electronic tag information of different textbooks or homework books in advance through the mobile client and name and store, preset the RFID electronic tag information of the textbooks or homework books that need to be carried through the mobile client setting the textbooks of different dates and name and store, before the student goes out a lesson every day, only need put the schoolbag into the article inspection device, carry out RFID electronic tag information identification through the control module, can carry out suggestion through loudspeaker and not carry article, wherein, software programming and control program that relate to in this article inspection device are current known technology, not the utility model point of this application, and no more detailed description is made here.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model 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 can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. An RFID article inspection device is characterized by comprising a device frame, an RFID antenna, a weighing sensor, an RFID electronic tag, an RFID card reader module, a control module and a mobile client;

the device frame body is provided with a metal net for shielding signals outside the device frame body; the RFID antenna is arranged on the side wall inside the device frame body;

the read electronic tag information of the article is sent to a control module;

2. The device according to claim 1, wherein the control module comprises at least a main control module mounted on a main control circuit board, and a power module, a communication module, a charging module and a detection module connected with the main control module;

the circuit of the power supply module comprises a voltage stabilizing chip U1, a power supply chip U4 and a first wiring terminal CN2;

the pin 2 of the power chip U4 is connected with the pin 7 of the power chip U4, one end of the fifth capacitor C5, one end of the fourth capacitor C4 and one end of the switch J1, the other end of the fifth capacitor C5 is grounded with the other end of the fourth capacitor C4, the other end of the switch J1 is connected with the pin 2 of the first wiring terminal CN2, and the pin 1 of the first wiring terminal CN2 is grounded;

3. The RFID article inspection device according to claim 2, wherein the circuit of the main control module includes a control chip U7, a first crystal resonator X1, a second crystal resonator Y1, a second connection terminal CN3, and a third connection terminal CN4;

4. An RFID article inspection device according to claim 2, wherein the communication module includes a communication chip U9, a fourth resistor R4, and a thirteenth capacitor C13;

5. An RFID article inspection device according to claim 2, wherein the circuitry of the detection module includes a fourteenth capacitor C14, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, and a third diode U8;

6. The RFID article inspection device according to claim 2, wherein the circuit of the charging module includes a charging chip TU1, a ninth resistor R9, a tenth resistor R10, and a connector U11;

7. The RFID article inspection device according to claim 3, wherein the main control module further comprises a speaker BU1, one end of the speaker BU1 is connected to a pin 20 of the control chip U7, and the other end of the speaker BU1 is connected to a VCC pin;