KR20190001866A - Rfid reader device and method for system for providing refrigerator article information having the same - Google Patents

Abstract

Disclosed is an RFID reader. The RFID reader comprises: an RFID sensor reading product information presenting information on a product from an RFID tag attached to the product; an RFID interface communicating with the RFID sensor; a controller receiving the product information from the RFID interface, reading an identification number capable of identifying a refrigerator from a memory in response to the received product information, and outputting the product information and identification number; and a close-distance radio communications interface receiving the product information and identification number from the controller and transmitting the received product information and identification number to a router using close-distance radio communications. The RFID reader can be attached to and detached from the refrigerator.

Description

FIELD OF THE INVENTION [0001] The present invention relates to an RFID reader and a method of operating the article information providing system of a refrigerator including the RFID reader.

An embodiment according to the concept of the present invention relates to an RFID reader, and more particularly to an RFID reader detachable to a refrigerator.

Recently, with the development of internet of things (IoT), interest in smart home appliances is also increasing. Among them, the smart refrigerator contributes to improve the quality of life by providing the function of food management, recipe, and online shopping based on the information of the food inside the refrigerator.

Smart refrigerators, which are currently being marketed, can add food items, food shelf life, and food search by adding the Internet and entertainment elements to the function of a general refrigerator.

However, since smart refrigerators are higher in price than regular refrigerators, they can not be purchased easily and convenience has not increased greatly. For example, when food ingredients are put into a smart refrigerator, the user of the refrigerator has to manually input information about the food materials and delete them directly when they are removed.

In order to solve the hassle of accessing food materials, studies were conducted to manage articles using radio frequency identification (RFID) sensor modules. However, this study focused on locating food materials through RFID, so there was no consideration for application services.

Patent Document 1: JP-A-10-2008-0084240 Patent Document 2: JP-A-10-2011-0126235

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and an RFID reader of the present invention reads product information representing information on the article from an RFID tag attached to the article and identifies the refrigerator together with the article information The identification number can be transmitted to the router through short-range wireless communication, and can be detachably attached to the refrigerator.

A second object of the present invention is to remotely monitor the article information in the refrigerator by transmitting the article information read from the RFID reader to the user terminal of the user using the article information providing system of the refrigerator .

According to an aspect of the present invention, there is provided an RFID reader including an RFID sensor for reading product information indicating information on the article from an RFID tag attached to the article, an RFID interface for communicating with the RFID sensor, A controller for receiving the article information from the RFID interface, reading the identification number capable of identifying the refrigerator from the memory in response to the received article information, and outputting the article information and the identification number; And a short range wireless communication interface for receiving the identification number and transmitting the received article information and the received identification number to the router through short range wireless communication, wherein the RFID reader is detachably attachable to the refrigerator.

The controller may further include a speaker for outputting sound in response to a control signal transmitted from the controller, wherein the controller generates the control signal in response to the article information received from the RFID sensor, To the speaker.

The RFID reader further includes a power supply unit and a connector for receiving power from the portable auxiliary battery and supplying the power to the power supply unit, and the power supply unit supplies the power to the controller.

A method of operating an article information providing system of a refrigerator using an RFID reader, a router, a server, and a user terminal removably attachable to a refrigerator of the present invention for achieving the second object is characterized in that an RFID sensor included in the RFID reader is attached A method of controlling an RFID reader, comprising the steps of: reading article information representing information on the article from an RFID tag; receiving, by a controller included in the RFID reader, the article information via an RFID interface included in the RFID reader; Reading the identification number identifying the refrigerator from the first memory and outputting the article information and the identification number; and controlling the controller included in the RFID reader through a short range wireless communication interface included in the RFID reader Transmitting the article information and the identification number to the router; Storing the article information and the identification number received from the server through the router on a database and transmitting the article information to the user terminal matching the identification number; .

The method of operating the article information providing system of the refrigerator may further include a temperature sensing device of the refrigerator, and the method of operating the article information providing system of the refrigerator may include a temperature sensor The method comprising the steps of: measuring the temperature inside the refrigerator and outputting a measured temperature value; determining whether the controller included in the temperature sensing device is capable of identifying the refrigerator from the second memory in response to the received temperature measurement; And outputting the temperature measurement value and the identification number; and the controller included in the temperature sensing device transmits the identification number and the temperature measurement value to the temperature sensing device through a short- range wireless communication interface included in the temperature sensing device, And transmitting the identification number to the server via the router; Storing the temperature measurement value in the database, and transmitting the measured temperature value to the user terminal matching the identification number, the user terminal further comprises the step of displaying the temperature value.

In addition, the article information providing system of the refrigerator may further include at least one air pollution sensing device installed in the refrigerator, and the method of operating the article information providing system of the refrigerator may include an air pollution measurement sensor included in the air pollution sensing device Measuring a degree of air contamination in the refrigerator and outputting a measured contamination value; and controlling the controller included in the air pollution detecting device to determine the refrigerator from the third memory in response to the contamination measurement value, Reading the number and outputting the pollution measurement value and the identification number; and a controller included in the air pollution detection device, for receiving the pollution measurement value from the short range wireless communication interface To the router via the router; Determining whether the air pollution degree in the refrigerator exceeds a reference value based on the received pollution measurement value and a reference value stored in a database; and if the air pollution degree in the refrigerator exceeds the reference value The server further includes a step of transmitting a warning message to the user terminal matching the identification number, and the user terminal displaying the warning message through a pop-up window.

In addition, the article information providing system of the refrigerator may further include at least one air pollution sensing device installed in the refrigerator, and the method of operating the article information providing system of the refrigerator may include an air pollution measurement sensor included in the air pollution sensing device Measuring a degree of air contamination in the refrigerator and outputting a measured contamination value; and controlling the controller included in the air pollution detecting device to determine the refrigerator from the third memory in response to the contamination measurement value, Reading the position information of the air pollution detection device, outputting the pollution measurement value, the identification number, and the position information; and a controller included in the air pollution detection device, Value, and the positional information to the short-range wireless communication interface Determining whether the air pollution degree in the refrigerator exceeds a reference value based on the pollution measurement value received through the router and a reference value stored in the database, And when the degree of air pollution inside the refrigerator exceeds the reference value as a result of the determination, the server uses the identification number and the position information to lead the article information of the article around the air pollution detection device from the database Transmitting the article information to the user terminal, the server matching the identification number, and the user terminal displaying the article information.

In addition, the article information providing system of the refrigerator may further include at least one air pollution sensing device installed in the refrigerator and at least one camera device installed in the refrigerator, and the method of operating the article information providing system of the refrigerator may include: The air pollution measurement sensor included in the sensing device measures the air pollution degree in the refrigerator and outputs a pollution measurement value; and a controller included in the air pollution sensing device responds to the pollution measurement value, Reading out the identification number capable of identifying the refrigerator from the air conditioner, and outputting the contamination measurement value and the identification number; and a controller included in the air pollution sensing device, The pollution detection device is connected to the ball Determining whether the air pollution degree in the refrigerator exceeds a reference value based on the pollution measurement value received through the router and a reference value stored in a database; Selecting a camera device closest to the air pollution detection device when the degree of air pollution in the refrigerator exceeds the reference value and transmitting a camera angle adjustment signal to the camera device; Wherein the short range wireless communication interface included in the camera device comprises: receiving the camera angle adjustment signal through the router; and a controller included in the camera device, Adjust the angle to the air pollution sensor Controlling the server motor included in the camera device so that the camera device displays the image of the air around the air pollution sensing device so that the user terminal displays the image.

In addition, the article information providing system of the refrigerator may further include a door open sensing device attached to the door of the refrigerator, and a method of operating the article information providing system of the refrigerator may include: a door open sensing sensor included in the door open sensing device; And a controller included in the door open sensing device reads an identification number capable of identifying the refrigerator from the fourth memory in response to the door open sensing signal, The method of claim 1, further comprising the steps of: outputting the door open detection signal and the identification number; and the controller included in the door open detection device transmits the identification number and the door open detection signal via the short- And transmitting, by the server, to the router, based on the door open detection signal received via the router, The method comprising the steps of: counting the number of opening times, comparing the number of door openings with a reference number stored in the database, and when the door opening number is less than the reference number as a result of the comparison, Reading the terminal information from the database, and transmitting the terminal information to the administrator terminal.

The RFID reader according to the present invention as described above allows the RFID reader to be attached to and detached from the refrigerator used in the past so that the conventional refrigerator can perform the same function as the smart refrigerator without purchasing the smart refrigerator separately Effect can be provided.

Further, in the method of operating the article information providing system of the refrigerator of the present invention, the RFID reader can provide the article information read from the RFID tag attached to each article to the smart phone, The user of the system can provide the effect of remotely monitoring the goods.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to more fully understand the drawings recited in the detailed description of the present invention, a detailed description of each drawing is provided.
1 is a block diagram of an article information providing system of a refrigerator according to embodiments of the present invention.
2 is a block diagram of an article information providing system of a refrigerator according to another embodiment of the present invention.
3 is a block diagram of an article information providing system of a refrigerator according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to embodiments and drawings according to the present invention.

1 is a block diagram of an article information providing system of a refrigerator according to embodiments of the present invention. Referring to FIG. 1, an article information providing system 10 of a refrigerator includes an RFID tag 100, an RFID reader 200, a temperature sensing device 290, a router 600, a first network 700-1, A server 800, a second network 700-2, and a user terminal 900. As shown in FIG.

The article information providing system 10 of the refrigerator may further include a database (DB) or a data storage device (800-1) accessible by the server (800). The server 800 can access the DB 800-1 to store data in the DB 800-1 or read data from the DB 800-1. The DB 800-1 may be implemented inside or outside the server 800. The server 800 can retrieve data from the DB 800-1.

An RFID tag 100 may be attached to an article, e.g., a foodstuff, and may store tag identifiers and article information (GIF) indicating information about the article. For example, information about the article may be an article name, shelf life, nutritional content, origin, and the like.

The RFID reader 200 reads the article information GIF stored in the RFID tag 100 and outputs the read article information GIF so that the user of the article information providing system 10 of the refrigerator can monitor the article information at a remote place . For example, the RFID reader 200 may mean that the RFID sensor 210 is connected to an arduino-based board 230 capable of performing Wi-Fi communication, but the present invention is not limited thereto.

The RFID reader 200 can be detachably attached to the refrigerator so that the conventional refrigerator can perform the same function as that of the object Internet refrigerator without purchasing the internet of things (IoT) refrigerator separately can do.

The temperature sensing device 290 is installed inside the refrigerator and measures the temperature inside the refrigerator and outputs the measured temperature measurement value TEM so that the user of the product information providing system 10 of the refrigerator can monitor the refrigerator at a remote place . For example, the temperature sensing device 290 may mean that the temperature sensor 291 is connected to the board-based board 292 capable of performing Wi-Fi communication, but the present invention is not limited thereto.

The first network 700-1 may mean a wired Internet network and a wireless Internet network and the second network 700-2 may be a wired Internet network, a wireless Internet network, a wireless local area network such as Wi-Fi (wireless fidelity) A wireless local area network (WLAN), and a mobile cellular network. The mobile communication network may include a 3G (3rd generation) mobile communication network, a 4G (4th generation) mobile communication network, a LTME (Long Term evolution) mobile communication network or an LTE-Advanced (LTE-A) mobile communication network.

The RFID reader 200 may transmit the product information (GIF) read from the RFID tag 100 to the server 800 through the router 600 and the first network 700-1, Information (GIF) to the user terminal 900 through the second network 700-2.

The RFID reader 200 may include an RFID sensor 210, an adonaboard 230, a power supply 250, a connector 270, and a speaker 290, An interface 231, a controller 232, a memory 233, an LED 234, and a short-range wireless communication interface 235.

 The RFID sensor 210 may read the article information (GIF) indicating information on the article from the RFID tag 100 attached to the article.

The controller 232 can receive the article information (GIF) from the RFID interface 231 that can communicate with the RFID sensor 210. [ The controller 232 reads an identification number (RID) identifying the refrigerator from the memory 233 in response to the received article information (GIF), and outputs the article information GIF and the identification number (RID) have.

The short range wireless communication interface 235 receives the article information GIF and the identification number RID from the controller 232 and transmits the received article information GIF and the received identification number RID to the short- To the router 600 through the Internet. For example, the short-range wireless communication interface 235 can exchange data with the router 600 using a Wi-Fi communication method.

The server 800 stores the article information GIF and the identification number RID received through the router 600 in the database 800-1 and transmits the goods information to the user terminal 900 matching the identification number RID Information (GIF) through the second network 700-2.

The user terminal 900 may display the article information (GIF) through the display device of the user terminal 900. [

According to an embodiment, the server 800 may determine whether the received article information (GIF) and the received identification number (RID) are already stored in the database 800-1. When the server 800 determines that the article information GIF and the received identification number RID are already stored in the database 800-1, the server 800 retrieves the article information GIF from the database 800-1, And the identification number (RID). Therefore, since the article information (GIF) is deleted from the database 800-1 when the user takes out the article corresponding to the article information (GIF) from the refrigerator, the article information (GIF) of the refrigerator allows the user to insert the article into the refrigerator It can be automatically saved and deleted on the server every time.

The connector 270 can receive the power PW from the portable auxiliary battery and supply the supplied power PW to the power supply 250. [ The power supply 250 can supply the power PW to the controller 232 included in the RFID reader 200. [

According to an embodiment, the RFID reader 200 may further include an antenna capable of receiving a radio signal for wireless charging, and the RFID reader 200 may convert the power PW obtained from the radio signal received by the antenna into electric power To the supply device 250.

The controller 232 may generate the first control signal CTRL1 in response to the article information GIF received from the RFID sensor 210 and transmit the generated first control signal CTRL1 to the speaker 270 have. The speaker 290 can output a sound in response to the first control signal CTRL1 transmitted from the controller 232. [

The controller 232 generates the second control signal CTRL2 in response to the article information GIF received from the RFID sensor 210 and outputs the generated second control signal CTRL2 to the LED 234). The LED 234 may blink in response to the second control signal CTRL2 transmitted from the controller 232. [

The temperature sensing device 290 may include a temperature sensor 291 and an adinino board 292 and the adonaboard 292 may include a controller 293, a memory 297, and a short range wireless communication I / 295). The temperature sensor 291 included in the temperature sensing device 290 can measure the temperature inside the refrigerator and can output the temperature measurement value TEM. The controller 293 included in the temperature sensing device 290 reads an identification number (RID) that identifies the refrigerator from the memory 297 in response to the received temperature measurement TEM, TEM) and the identification number (RID). The controller 293 included in the temperature sensing device 290 transmits the identification number RID and the temperature measurement value TEM to the router 600 via the short range wireless communication interface 295 included in the temperature sensing device 290 Lt; / RTI >

The server 800 stores the identification number (RID) and the temperature measurement value (TEM) received via the router 600 in the database 800-1 and transmits the identification number (RID) to the user terminal 900 Temperature measurement value (TEM) can be transmitted.

The user terminal 900 may display the temperature measurement value TEM through the display device of the user terminal 900. [

2 is a block diagram of an article information providing system of a refrigerator according to another embodiment of the present invention. 2, except for the air pollution sensing device 300 and the camera device 400, the structure and operation of the article information providing system 20 of the refrigerator of FIG. Is substantially the same as the structure and operation of the article information providing system 10 of the refrigerator of Fig.

The article information providing system 20 of the refrigerator may include one or more air pollution sensing devices 300 in the refrigerator. The air polluting apparatus 300 may mean that the air pollution measuring sensor 310 is connected to the board-based board 320 capable of performing Wi-Fi communication, but the present invention is not limited thereto. For example, the air pollution measurement sensor 310 is a sensor that detects a pollutant such as a carbon-containing gas, SOx, NOx, O3, CH4, NO2, May be formed of a sensor adapted to measure the concentration of the water.

The article information providing system 20 of the refrigerator may include one or more camera devices 400 in the refrigerator. The camera device 400 may mean that the camera 410 and the servomotor 430 are connected to the board 440 based on the adonino capable of performing Wi-Fi communication, but the present invention is not limited thereto.

The air pollution measurement sensor 310 included in the air pollution detection apparatus 300 can measure the air pollution degree inside the refrigerator and output the pollution measurement value POL.

The controller 330 included in the air pollution sensing apparatus 300 reads an identification number (RID) capable of identifying the refrigerator from the memory 370 in response to the contamination measurement value POL, ) And an identification number (RID).

The controller 330 included in the air pollution sensing apparatus 300 transmits the identification number RID and the pollution measurement value POL to the router 600 through the short- ).

The server 800 determines whether the air pollution degree in the refrigerator exceeds the reference value based on the pollution measurement value POL received through the router 600 and the reference value REF_POL stored in the database 800-1 It can be judged. As a result of the determination, when the air pollution degree in the refrigerator exceeds the reference value, the server 800 may transmit a warning message to the user terminal 900 matching the identification number (RID).

The user terminal 900 may display the warning message on a display device of the user terminal 900 through a pop-up window.

According to an embodiment of the present invention, when the degree of air pollution in the refrigerator exceeds the reference value, the server 800 determines whether the amount of air pollution detected by the air pollution sensing device 300 (GIF) of the article in the database 800-1 can be read out from the database 800-1.

The air pollution apparatus position information PLOD may be information indicating the position of the air pollution sensing apparatus 300 installed in the refrigerator. Therefore, the article information (GIF) of the article around the air pollution sensing apparatus 400 that outputs the contamination measurement value exceeding the reference value among the one or more air pollution sensing apparatuses installed in the refrigerator from the database 800-1, can do.

The server 800 may transmit the article information (GIF) to the user terminal 900 matching the identification number (RID). Since the user terminal 900 can display the article information (GIF) through the display device of the user terminal 900, the user can remotely monitor the information on the upper limit article among the articles in the refrigerator.

When the degree of air pollution in the refrigerator exceeds the reference value, the server 800 determines that the air pollution sensing apparatus 300 (300) is using the identification number (RID) and the camera position information The camera device 400 closest to the camera device 400 can be selected. The server 800 may transmit the camera angle adjustment signal ANG to the camera device 400 using the identification number (RID) of the refrigerator matched with the selected camera device 400. [

The camera position information (CLOD) may be information indicating the position of the camera device 400 installed in the refrigerator. Therefore, it is possible to select the camera device 400 closest to the air pollution detection device 400 outputting the pollution measurement value exceeding the reference value among the one or more air pollution detection devices installed in the refrigerator.

The short range wireless communication interface 470 included in the camera apparatus 400 may receive the camera angle adjusting signal ANG through the router 600. [ The controller 450 included in the camera apparatus 400 adjusts the photographing angle of the camera 410 included in the camera apparatus 400 to the direction of the air pollution sensing apparatus 300 based on the camera angle adjusting signal ANG The server motor 430 included in the camera apparatus 400 can be controlled.

The servo motor 430 of the camera device 400 can adjust the photographing angle of the camera 410 toward the air pollution sensing device 300 and output the image IMG around the air pollution sensing device 300 . The user terminal 900 can display the image IMG through the display device of the user terminal 900. [

3 is a block diagram of an article information providing system of a refrigerator according to another embodiment of the present invention. 3, the structure and operation of the article information providing system 20 of the refrigerator of FIG. 3 are the same as those of the article of the refrigerator of FIG. 2 except for the door open detection device 500, The structure and operation of the information providing system 20 are substantially the same.

The article information providing system 30 of the refrigerator may include a door open detection device 500 attached to the refrigerator door. The door open detection device 500 may mean that the door open detection sensor 510 and the servo motor 430 are connected to the board-based board 520 on which the Wi-Fi communication can be performed, It is not. For example, the door open detection sensor 510 may be a magnetic sensor.

The door open detection sensor 510 included in the door open detection device 500 detects the door open and outputs the door open detection signal OPN. The controller 530 included in the door open sensing apparatus 500 reads an identification number (RID) capable of identifying the refrigerator from the memory 570 in response to the door open detection signal OPN, OPN) and an identification number (RID).

The controller 530 included in the door open sensing apparatus 500 transmits the identification number RID and the door open detection signal OPN to the router 500 via the short- 600).

The server 800 counts the number of door openings based on the door open detection signal OPN received via the router 600 and counts the number of door openings CNT and the reference number REF_CNT stored in the database 800-1 ) Can be compared.

When the number of door opening times CNT is less than the reference number REF_CNT, the server 800 reads the terminal information of the user terminal 900 matching the identification number (RID) from the database 800-1, And may transmit the terminal information to the administrator terminal 910.

Therefore, it is possible to indirectly know the food intake status of the elderly living alone through the number of door openings of the refrigerator, and the manager who manages the article information providing system 30 of the refrigerator can remotely receive the food intake of the elderly living alone through the manager terminal 910 Status, and so on.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10; Product information providing system of refrigerator
100; RFID tag
200; RFID reader
290; Temperature sensing device
300; Air pollution sensor
400; Camera device
500; Door opening sensor
600; router
700-1; The first network
700-2; The second network
800; server
800-1; Database
900; User terminal
910; Administrator terminal

Claims (9)

An RFID reader comprising: an RFID sensor for reading product information indicative of information on the article from an RFID tag attached to the article;
An RFID interface capable of communicating with the RFID sensor;
A controller for receiving the article information from the RFID interface, reading an identification number capable of identifying the refrigerator from the memory in response to the received article information, and outputting the article information and the identification number; And
And a short range wireless communication interface for receiving the article information and the identification number from the controller and transmitting the received article information and the received identification number to the router using short range wireless communication,
Wherein the RFID reader is detachably attachable to the refrigerator. The method according to claim 1,
Further comprising a speaker for outputting sound in response to a control signal transmitted from the controller,
Wherein the controller generates the control signal in response to the article information received from the RFID sensor and transmits the generated control signal to the speaker. The method according to claim 1,
Power supply; And
Further comprising a connector for receiving power from the portable auxiliary battery to supply the power to the power supply,
And the power supply device supplies the power to the controller. A method of operating an article information providing system of a refrigerator using an RFID reader, a router, a server, and a user terminal removably attached to the refrigerator,
The RFID sensor included in the RFID reader reads the article information indicating information on the article from the RFID tag attached to the article;
Wherein the controller included in the RFID reader receives the article information through the RFID interface included in the RFID reader and reads an identification number capable of identifying the refrigerator from the first memory in response to the received article information, Outputting the article information and the identification number;
Transmitting, by the controller included in the RFID reader, the article information and the identification number to the router through a short range wireless communication interface included in the RFID reader;
Storing the article information and the identification number received from the server through the router on a database and transmitting the article information to the user terminal matching the identification number; And
Wherein the user terminal displays the article information. ≪ Desc / Clms Page number 19 > 5. The method of claim 4,
Wherein the article information providing system of the refrigerator further comprises a temperature sensing device,
A method of operating an article information providing system of a refrigerator,
Measuring a temperature inside the refrigerator by using a temperature sensor included in the temperature sensing device and outputting a temperature measurement value;
The controller included in the temperature sensing device reading the identification number capable of identifying the refrigerator from the second memory in response to the received temperature measurement value and outputting the temperature measurement value and the identification number;
Wherein the controller included in the temperature sensing device transmits the identification number and the temperature measurement value to the router through a short range wireless communication interface included in the temperature sensing device;
Storing the identification number and the temperature measurement value received via the router on the server and transmitting the temperature measurement value to the user terminal that matches the identification number; And
Wherein the user terminal is further configured to display the temperature measurement value. 5. The method of claim 4,
Wherein the article information providing system of the refrigerator further comprises at least one air pollution detecting device installed in the refrigerator,
A method of operating an article information providing system of a refrigerator,
The air pollution measurement sensor included in the air pollution detection device measures the degree of air pollution in the refrigerator and outputs a pollution measurement value;
The controller included in the air pollution sensing apparatus reads the identification number capable of identifying the refrigerator from the third memory in response to the contamination measurement value, and outputs the contamination measurement value and the identification number;
The controller included in the air pollution sensing device transmits the identification number and the contamination measurement value to the router through a short range wireless communication interface included in the air pollution sensing device;
Determining whether the air pollution degree in the refrigerator exceeds a reference value based on the pollution measurement value received through the router and the reference value stored in the database;
When the degree of air pollution in the refrigerator exceeds the reference value as a result of the judgment, the server transmits a warning message to the user terminal matching the identification number; And
Wherein the user terminal displays the warning message through a pop-up window. ≪ Desc / Clms Page number 19 > 5. The method of claim 4,
Wherein the article information providing system of the refrigerator further comprises at least one air pollution detecting device installed in the refrigerator,
A method of operating an article information providing system of a refrigerator,
The air pollution measurement sensor included in the air pollution detection device measures the degree of air pollution in the refrigerator and outputs a pollution measurement value;
Wherein the controller included in the air pollution sensing device reads the identification number and the location information of the air pollution sensing device from the third memory in response to the contamination measurement value, An identification number, and the location information;
Transmitting, by the controller included in the air pollution detection apparatus, the identification number, the pollution measurement value, and the position information to the router through a local wireless communication interface included in the air pollution detection apparatus;
Determining whether the air pollution degree in the refrigerator exceeds a reference value based on the pollution measurement value received through the router and the reference value stored in the database;
When the degree of air pollution in the refrigerator exceeds the reference value as a result of the determination, the server reads the article information of the article around the air pollution sensing apparatus from the database using the identification number and the position information ;
The server transmitting the article information to the user terminal matching the identification number; And
Wherein the user terminal further comprises the step of displaying the article information. 5. The method of claim 4,
Wherein the article information providing system of the refrigerator further comprises at least one air pollution sensing device installed in the refrigerator and at least one camera device installed in the refrigerator,
A method of operating an article information providing system of a refrigerator,
The air pollution measurement sensor included in the air pollution detection device measures the degree of air pollution in the refrigerator and outputs a pollution measurement value;
The controller included in the air pollution sensing apparatus reads the identification number capable of identifying the refrigerator from the third memory in response to the contamination measurement value, and outputs the contamination measurement value and the identification number;
The controller included in the air pollution sensing device transmits the identification number and the contamination measurement value to the router through a short range wireless communication interface included in the air pollution sensing device;
Determining whether the air pollution degree in the refrigerator exceeds a reference value based on the pollution measurement value received through the router and the reference value stored in the database;
When the degree of air pollution in the refrigerator exceeds the reference value as a result of the determination, the server selects a camera device closest to the air pollution detection device and transmits a camera angle control signal to the camera device ;
Wherein the short range wireless communication interface included in the camera device comprises: receiving the camera angle adjustment signal through the router;
Controlling a server motor included in the camera apparatus to adjust an image capturing angle of the camera included in the camera apparatus to the air pollution sensor based on the camera angle adjusting signal; And
And outputting the image so that the user terminal displays an image of the surroundings of the air pollution detection device. 5. The method of claim 4,
The article information providing system of the refrigerator may further include a door open detection device attached to the door of the refrigerator,
A method of operating an article information providing system of a refrigerator,
A door open detection sensor included in the door open detection device detects a door open and outputs a door open detection signal;
The controller included in the door opening sensing device reads an identification number capable of identifying the refrigerator from the fourth memory in response to the door opening sensing signal and outputs the door opening sensing signal and the identification number;
Wherein the controller included in the door open sensing device transmits the identification number and the door open sensing signal to the router through a short range wireless communication interface included in the door open sensing device;
Counting the number of door openings based on the door open detection signal received via the router, and comparing the number of door openings with a reference number stored in the database; And
The server further reads the terminal information of the user terminal matching the identification number from the database and transmits the terminal information to the administrator terminal when the number of door openings is less than the reference number as a result of the comparison Wherein the refrigerator is a refrigerator.

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