KR20220009226A - System and method for loss prevention of user belongings - Google Patents

Abstract

The present invention relates to a system for belongings loss prevention including: a wireless tag attached to belongings and transmitting a signal by wireless communication; and a user terminal setting a loss critical distance to the wireless tag in accordance with user setting and providing a user notification in a case where the current distance to the wireless tag exceeds the loss critical distance. The user terminal is capable of storing, as loss location information, global positioning system (GPS) location information in a case where the current distance to the wireless tag exceeds the loss critical distance. According to the present invention, it is possible to prevent loss of user belongings. In the event of loss, the lost belongings can be easily found as information can be stored on the loss location.

Description

SYSTEM AND METHOD FOR LOSS PREVENTION OF USER BELONGINGS

The present invention relates to a system and method for preventing loss of belongings.

With the development of wireless technology, wireless technology has been applied and applied in various fields. As an application example of such a wireless technology, a technology for preventing loss of belongings is being developed.

The technology for preventing loss of belongings is to prevent the loss of belongings of the user. For example, a technology for preventing loss from the user by attaching a wireless chip or a wireless tag to the belongings of the user and using this is being developed.

Since this technology for preventing loss of belongings is made based on wireless communication between a wireless tag attached to the belongings and the user terminal, it is possible to provide a notification to the user when the belongings are more than a certain distance away.

However, the conventional technology for preventing loss of belongings has a limitation in that the user loses his/her belongings if the user fails to properly check the notification. In addition, since it is used as a wireless communication method between the wireless tag and the user terminal, the loss of belongings can be detected, but there is a problem in that the location of the loss of the belongings cannot be confirmed.

Korean Patent Publication No. 10-0634279

One technical aspect of the present invention is to solve the problems of the prior art, and provides a system for preventing loss of belongings and a method for providing the same, which can easily prevent loss of belongings by attaching a small wireless tag to a user's article will do

In addition, one technical aspect of the present invention, by storing the GPS location information when the loss of belongings occurs, even after the belongings are lost, a system for preventing the loss of belongings and a method for providing the same, which can check information on the location where the belongings are lost will provide

In addition, one technical aspect of the present invention provides a notification to the user based on a change in the strength of a received signal of a wireless tag even if the user loses his/her belongings, so that the user can easily find the location of the belongings To provide a loss prevention system and a method for providing the same.

The above objects and various advantages of the present invention will become more apparent from preferred embodiments of the present invention by those skilled in the art.

One technical aspect of the present invention proposes a system for preventing loss of belongings. The system for preventing loss of belongings sets a loss threshold distance with the wireless tag according to a user's setting and a wireless tag that is attached to the belongings and transmits a signal through wireless communication, and the current distance with the wireless tag is the loss and a user terminal providing a notification to the user when the threshold distance is exceeded, wherein the user terminal obtains GPS (Global Positioning System) location information when the current distance to the wireless tag exceeds the loss threshold distance It can be stored as lost location information.

In an embodiment, the user terminal provides a wireless communication unit performing wireless communication with the wireless tag, a GPS communication unit generating GPS location information, an input interface unit providing an input unit to the user, and an output unit providing an output unit to the user and a control unit configured to set the loss threshold distance according to the user's setting, and control to provide a notification to the user when the current distance to the wireless tag exceeds the loss threshold distance. .

In an embodiment, the control unit controls the wireless communication unit to calculate a current distance to the wireless tag, a distance calculation module, and a threshold distance setting module to set a critical distance to the wireless tag according to the user's setting. and a user notification module for controlling the output interface to provide a notification to the user when the current distance exceeds the loss threshold distance.

In one embodiment, the control unit, in conjunction with the GPS module and the GPS module to check the GPS location information in conjunction with the GPS communication unit, the current distance to the wireless tag calculated by the distance calculation module is the loss threshold distance It may include a lost location management module for storing and storing the GPS location information when it exceeds as the lost location information of the wireless tag.

In an embodiment, the wireless tag may be a passive tag that includes a wireless antenna unit and operates based on power transmitted from the user terminal using the wireless antenna unit.

In an embodiment, the wireless tag includes a wireless antenna unit and a power supply unit, and when receiving a signal from the user terminal, the identification information assigned to the wireless tag is transmitted to the user terminal by using the power stored in the power supply unit. may be an active tag.

One technical aspect of the present invention proposes a method for preventing loss of belongings. The method for preventing loss of belongings is a method for preventing loss of belongings applied in a system for preventing loss of belongings using a wireless tag attached to belongings and transmitting a signal through wireless communication. The method may include setting and providing a notification to the user when the current distance to the wireless tag exceeds the loss threshold distance.

In an embodiment, the method for preventing loss of belongings may further include storing GPS (Global Positioning System) location information when the current distance to the wireless tag exceeds the loss threshold distance as lost location information. have.

In one embodiment, the step of setting the loss threshold distance with the radio tag comprises storing the strength of the setting response signal of the radio tag to the setting signal transmitted in response to a user's request for setting the threshold distance as the loss threshold distance may include steps.

In one embodiment, the providing of the notification to the user includes: transmitting a periodic signal to the wireless tag; receiving the strength of a periodic response signal to the periodic signal from the wireless tag; If the strength is weaker than the strength of the set response signal, it may include determining the lost state.

The means for solving the above-described problems do not enumerate all the features of the present invention. Various means for solving the problems of the present invention may be understood in more detail with reference to specific embodiments in the following detailed description.

According to one embodiment of the present invention, by attaching a small wireless tag to the user's article, there is an effect of simply preventing the loss of belongings.

In addition, according to an embodiment of the present invention, by storing the GPS location information when the loss of belongings occurs, there is an effect that information on the location where the belongings are lost can be checked even after the belongings are lost.

In addition, according to an embodiment of the present invention, even if the user loses his belongings, by providing a notification to the user based on the change in the strength of the received signal of the wireless tag, the user can easily find the location of the belongings It works.

1 is a view for explaining an application example of the system for preventing loss of belongings according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating an embodiment of the radio tag shown in FIG. 1. Referring to FIG.
3 is a block diagram illustrating another embodiment of the radio tag shown in FIG. 1. Referring to FIG.
4 is a block diagram illustrating an embodiment of the user terminal shown in FIG. 1 .
5 is a block diagram illustrating an embodiment of a control unit of the user terminal shown in FIG. 4 .
6 and 7 are reference diagrams for explaining the loss threshold distance adjustment according to an embodiment of the present invention.
8 is a view for explaining another application example of the system for preventing loss of belongings according to an embodiment of the present invention.
9 is a flowchart illustrating a method for preventing loss of belongings according to an embodiment of the present invention.
10 is a flowchart illustrating an embodiment of steps S910 to S930 shown in FIG. 9 .
11 is a flowchart for explaining the adjustment of the loss threshold distance according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

However, the embodiment of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided in order to more completely explain the present invention to those of ordinary skill in the art.

That is, the above-described objects, features and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, a person of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of a known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “consisting of” or “comprising” should not be construed as necessarily including all of the various components or various steps described in the specification, some of which components or some steps are It should be construed that it may not include, or may further include additional components or steps.

In addition, various components and sub-components thereof are described below in order to describe the system according to the present invention. These components and sub-components thereof may be implemented in various forms, such as hardware, software, or a combination thereof. For example, each element may be implemented as an electronic configuration for performing a corresponding function, or may be software itself operable in an electronic system or implemented as a functional element of such software. Alternatively, it may be implemented with an electronic configuration and corresponding driving software.

Although various flowcharts are disclosed to describe the embodiments of the present invention, this is for convenience of description of each step, and each step is not necessarily performed according to the order of the flowchart. That is, each step in the flowchart may be performed simultaneously with each other, performed in an order according to the flowchart, or may be performed in an order opposite to the order in the flowchart.

Hereinafter, a system and method for preventing loss of belongings according to some embodiments of the present invention will be described.

1 is a view for explaining an application example of the system for preventing loss of belongings according to an embodiment of the present invention.

Referring to FIG. 1 , the system for preventing loss of belongings includes a wireless tag 100 attached to a user's belongings 10 and a user terminal 200 carried by the user.

The wireless tag 100 transmits and receives signals through wireless communication with the user terminal 200 .

Based on wireless communication with the wireless tag 100 , the user terminal 200 determines that the wireless tag 100 is lost when the wireless tag 100 moves away from it by a predetermined distance or more. That is, when it is confirmed that the wireless tag 100 moves away from the loss threshold distance or more, the user terminal 200 may provide a notification of loss of belongings to the user.

This loss threshold distance may be set by a user. That is, according to the user's setting, the user terminal 200 may set the loss threshold distance with the wireless tag 100 . The user terminal 200 communicates with the wireless tag 100 periodically to calculate a current distance to the wireless tag, and when the calculated current distance to the wireless tag exceeds the loss threshold distance, a notification may be provided to the user. have.

The user terminal 200 may generate location information of the user terminal 200 in conjunction with the GPS satellite 20 . When it is determined that the belongings are lost, that is, when the current distance to the wireless tag exceeds the loss threshold distance, the user terminal 200 stores GPS (Global Positioning System) location information at that time as lost location information. can This is to enable the user to recover his belongings later by recording GPS information about where the loss occurred, even if the loss occurs because the user fails to check the notification of the loss.

In an embodiment, even if it is determined that the belongings are lost, the user terminal 200 may continuously attempt to communicate with the wireless tag 100 . That is, after it is determined that the belongings are lost, communication with the wireless tag 100 can be performed periodically. At this time, by providing a notification to the user based on the change in the strength of the response signal from the wireless tag 100, It may facilitate the user to locate the belongings. For example, if the strength of a response signal with the wireless tag 100 increases while communication with the wireless tag 100 is periodically performed after it is determined that the belongings are lost, the user is told 'going towards the belongings', such as Notifications can be provided. On the other hand, when the strength of the response signal with the wireless tag 100 gradually weakens, a notification such as 'getting away from belongings' may be provided to the user. Accordingly, even if the user cannot accurately specify the location of the belongings, since the user can check whether the moving direction is closer to or farther from the belongings, the user can easily find the lost belongings.

In an embodiment, the user terminal 200 may determine whether the user terminal is located indoors or outdoors based on GPS information. When it is determined that the user terminal is located outdoors, the user terminal 200 may set the loss threshold distance shorter than when it is determined that the user terminal is located indoors. In the case of indoor, it is often moved with belongings, but in the case of outdoors, it is common for users to move with their belongings. Even if it occurs, it can be recovered quickly.

FIG. 2 is a block diagram illustrating an embodiment of the radio tag shown in FIG. 1. Referring to FIG. An embodiment 100 of the wireless tag shown in FIG. 2 exemplifies the case of an active tag having its own power supply unit.

Referring to FIG. 2 , the wireless tag 100 includes a wireless antenna unit 110 , a control unit 120 , and a power supply unit 130 .

The wireless tag 100 operates using the power stored in the power supply 130 , and the control unit 120 receives a signal from the user terminal 200 through the wireless antenna unit 110 , It can be controlled to transmit the identification information assigned to the radio tag to the user terminal 200 by using the .

3 is a block diagram illustrating another embodiment of the radio tag shown in FIG. 1. Referring to FIG.

An embodiment 101 of the wireless tag shown in FIG. 3 exemplifies the case of a passive tag using a wireless signal provided from the user terminal 200 as power.

Referring to FIG. 3 , the wireless tag 101 includes a wireless antenna unit 111 and a control unit 121 .

When a wireless signal is transmitted from the user terminal 200 , the wireless antenna unit 111 is operated based on power induced from the corresponding wireless signal, and the control unit 121 controls the power generated from the wireless antenna unit 111 . can be used to transmit a response signal. For the wireless tag 101, for example, various technologies such as an RFID passive tag method or a magnetic resonance method may be applied.

4 is a block diagram illustrating an embodiment of the user terminal shown in FIG. 1 .

Referring to FIG. 4 , the user terminal 200 includes a wireless communication unit 210 , a GPS communication unit 220 , a control unit 230 , an input interface unit 240 , an output interface unit 250 , and a memory unit 260 . may include

On the other hand, the user terminal 200 may be implemented by installing dedicated software (application) in a mobile device such as a smart phone, a tablet PC, etc. In this case, the wireless communication unit 210 utilizes a wireless coil pre-applied to the mobile device. It may be implemented or may be implemented by applying a separate wireless communication reader that can be linked to a mobile device. Alternatively, the user terminal 200 may be implemented as a dedicated terminal.

The wireless communication unit 210 may perform wireless communication with the wireless tag 100 . A wireless communication method between the wireless communication unit 210 and the wireless tag 100 is not particularly limited, and for example, short-range communication technologies include Bluetooth, Radio Frequency Identification (RFID), and Infrared Data Association (IrDA). ), UWB (Ultra Wideband), ZigBee, Near Field Communication (NFC), Ultra Sound Communication (USC), Visible Light Communication (VLC), Wi-Fi ), Wi-Fi Direct, etc. may be applied.

The GPS communication unit 220 may generate GPS location information in conjunction with the GPS satellite 20 .

The input interface unit 240 provides an input means to the user. The input interface unit 240 may be implemented in various ways, such as a touch module, a keypad, and voice recognition.

The output interface unit 250 provides an output means to the user. The output interface unit 250 may be implemented in various ways, such as alarm, voice guidance, wireless messaging notification, and vibration notification.

According to an embodiment, the input interface unit 240 and the output interface unit 250 may be integrally implemented like a touch screen display.

The memory unit 260 stores data and programs necessary for the user terminal 200 to operate. For example, the memory unit 260 may include a flash memory type, a hard disk type, a multimedia card micro type, and a card type memory (eg, SD or XD). memory, etc.), magnetic memory, magnetic disk, optical disk, RAM (Random Access Memory: RAM), SRAM (Static Random Access Memory), ROM (Read-Only Memory: ROM), EEPROM (Electrically Erasable Programmable Read-Only Memory), It may include at least one storage medium among Programmable Read-Only Memory (PROM). Also, the memory unit 260 may be implemented in the form of a web storage that performs a storage function of the storage unit 120 on the Internet.

The controller 230 performs an overall control function of the user terminal 200 .

For example, the control unit 230 may execute an overall control function of the user terminal 200 using the program and data stored in the memory unit 260 . The controller 230 may include RAM, ROM, CPU, GPU, and a bus, and the RAM, ROM, CPU, GPU, etc. may be connected to each other through a bus. The CPU may access the memory unit 260 to perform booting using the O/S stored in the memory unit 260 , and various operations using various programs, contents, data, etc. stored in the memory unit 260 . can be performed.

The control unit 230 may control the output interface unit 250 to set the loss threshold distance according to the user's setting, and to provide a notification to the user when the current distance to the wireless tag exceeds the loss threshold distance.

The controller 230 may store Global Positioning System (GPS) location information when the current distance to the radio tag exceeds a loss threshold distance as lost location information.

In one embodiment, the controller 230 periodically performs communication with the wireless tag 100 after it is determined that the belongings are lost, and notifies the user based on the change in the strength of the response signal from the wireless tag 100 . By providing the , it is possible to facilitate the user to find the location of the belongings.

In an embodiment, the controller 230 may determine whether the user terminal is located indoors or outdoors based on the GPS information, and may set a different threshold distance for loss accordingly.

The control unit 230 will be described in more detail with reference to FIG. 5 .

5 is a block diagram illustrating an embodiment of a control unit of the user terminal shown in FIG. 4 .

Referring to FIG. 5 , the control unit 230 may include a distance calculation module 231 , a GPS module 232 , a critical distance setting module 233 , a lost location management module 234 , and a user notification module 235 . have.

The distance calculation module 231 may control the wireless communication unit 210 to calculate a current distance to the wireless tag 100 .

The threshold distance setting module 232 may set the loss threshold distance with the wireless tag according to the user's setting.

In an embodiment, the distance calculation module 231 may use the strength of the response signal transmitted from the wireless tag 100 in association with the distance. Since the control unit 230 determines whether or not it is lost based on the critical loss distance set by the user, the strength of the response signal at the loss threshold distance set by the user may be the reference.

For example, the threshold distance setting module 232 may provide a loss threshold distance setting interface to set a state separated by a predetermined distance that the user wants to set as the lost state from the belongings as the loss threshold distance. For example, if the user sets the loss threshold distance at a distance of 5M from the belongings, the distance calculation module 231 can check the strength of the response signal received from the wireless tag 100 in a state that is 5M away from the belongings, and the threshold distance setting module ( 232) may be set in association with the strength of this response signal as a loss threshold distance.

The distance calculation module 231 periodically communicates with the wireless tag 100 to check the current distance by periodically checking the strength of a response signal received from the wireless tag. For example, the current distance may not be an absolute distance, but may be a relative distance determined based on the critical loss distance.

The user notification module 235 may control the output interface unit to compare the current distance checked by the distance calculation module 231 with the loss threshold distance, and to provide a notification to the user when the current distance exceeds the loss threshold distance.

In an embodiment, when it is determined that the belongings are lost, the user notification module 235 may provide a belonging search mode to the user. That is, even after providing a notification to the user that the belongings are lost, the distance calculation module 231 may continuously and periodically calculate the current distance to the wireless tag, and the user notification module 235 may change the current distance. , for example, by providing a notification to the user based on a change in the strength of the response signal, it is possible to facilitate the user to find the location of the belongings.

For example, if the strength of the response signal increases as the user moves in the search mode, the user notification module 235 may provide a notification such as 'going towards belongings'. On the other hand, when the strength of the response signal with the wireless tag 100 is getting weaker, the user notification module 235 provides a notification such as 'getting away from belongings' to the user, so that the user can easily find their belongings. have.

The GPS module 232 may check the GPS location information in conjunction with the GPS communication unit, and the lost location management module 234 determines that the belongings are lost, that is, the current distance to the wireless tag exceeds the loss threshold distance. GPS location information at the time of doing can be stored and stored as the lost location information of the wireless tag.

In one embodiment, the control unit may adjust the loss threshold distance according to whether indoor / outdoor. 6 and 7 are reference diagrams for explaining the loss threshold distance adjustment according to an embodiment of the present invention.

The GPS module 232 may determine whether the user terminal is located indoors or outdoors based on the GPS information. For example, when GPS information is located indoors, the signal is not captured or fluctuates with a high error, so the GPS information is weakly captured, or the GPS position is suddenly changed with a high error regardless of the movement status of the GPS information, or the GPS position within a short time When a situation such as a change of location occurs, it may be determined that the user terminal is located indoors.

The critical distance setting module 232 may set the loss threshold differently depending on whether the location of the user terminal is indoors or outdoors. For example, as shown in FIG. 6 , when the location of the user terminal is set indoors, the threshold distance setting module 232 may set the first critical distance T1 initially set by the user as the loss threshold distance.

On the other hand, as shown in FIG. 6 , when the location of the user terminal is set outdoors, the threshold distance setting module 232 may set the second threshold distance T2 shorter than the first threshold distance set by the user as the loss threshold distance. .

In the case of indoor, it is often moved with belongings, but in the case of outdoors, it is common for users to move with their belongings. Even if it occurs, it can be recovered quickly.

As an example, the threshold distance setting module 232 may set the second threshold distance by reducing the first threshold distance by a predetermined ratio. That is, the threshold distance setting module 232 can be set by automatically adjusting the threshold distance outdoors.

As another example, the threshold distance setting module 232 may provide an interface to the user to set the second threshold distance to be applied outdoors.

Although the above-described system for preventing loss of belongings has been described as an example implemented with the wireless tag 100 and the user terminal 200, it is not necessarily limited thereto. That is, some functions of the user terminal may be implemented through an external server as shown in FIG. 8 . For example, all or part of the GPS function may be implemented through the external server 300 , or data storage/backup may be performed using the external server 300 .

In the above, the system for preventing loss of belongings according to an embodiment of the present invention has been described with reference to FIGS. 1 to 8 .

Hereinafter, a method for preventing loss of belongings according to an embodiment of the present invention will be described with reference to FIG. 9 . Since the method for preventing loss of belongings to be described below is performed based on the system for preventing loss of belongings described above, it can be more easily understood with reference to the above description based on FIGS. 1 to 8 .

9 is a flowchart illustrating a method for preventing loss of belongings according to an embodiment of the present invention.

Referring to FIG. 9 , the user terminal 200 sets a loss threshold distance with the radio tag according to the user's setting (S910).

The user terminal 200 calculates the current distance to the radio tag (S920), and when the current distance exceeds the loss threshold distance (S930, Yes), provides a notification to the user (S940).

If the current distance does not exceed the loss threshold distance (S930, NO), the current distance to the wireless tag is periodically calculated (S920).

The user terminal 200 may store Global Positioning System (GPS) location information when the current distance to the radio tag exceeds the loss threshold distance as lost location information (S950).

10 is a flowchart illustrating an embodiment of steps S910 to S930 shown in FIG. 9 . The embodiment shown in FIG. 10 relates to an embodiment using the strength of the response signal of the radio tag.

Referring to FIG. 10 , the user terminal 200 may transmit a setting signal to the wireless tag in response to a user's request for setting a threshold distance (S1010), and receive a setting response signal of the wireless tag thereto (S1020).

The user terminal 200 may set the strength of the set response signal of the radio tag as the loss threshold distance (S1030).

The user terminal 200 may transmit a periodic signal to the wireless tag and receive a periodic response signal to the periodic signal from the wireless tag (S1040).

If the strength of the periodic response signal is weaker than the strength of the set response signal, the user terminal 200 may determine the lost state (S1050).

11 is a flowchart for explaining the adjustment of the loss threshold distance according to an embodiment of the present invention.

The user terminal 200 may check the GPS signal ( S1110 ) and determine whether the user terminal is located indoors or outdoors based on the GPS signal ( S1120 ).

The user terminal 200 may set the loss threshold distance differently depending on whether the location of the user terminal is indoors or outdoors.

When the location of the user terminal is set indoors, the user terminal 200 may set the first threshold distance initially set by the user as the loss threshold distance. On the other hand, when the location of the user terminal is set to be outdoors, the user terminal 200 may set a second threshold distance shorter than the first threshold distance set by the user as the loss threshold distance.

In this way, by setting the indoor/outdoor threshold distance differently, it is possible to further lower the possibility of loss outdoors and to enable quick collection of belongings even when lost.

The present invention described above is not limited by the above-described embodiments and the accompanying drawings, but is limited by the claims described below, and the configuration of the present invention may vary within the scope without departing from the technical spirit of the present invention. Those of ordinary skill in the art to which the present invention pertains can easily recognize that it can be changed and modified.

10: belongings
100, 101: wireless tag
110, 111: wireless antenna unit 120, 121: control unit
130: power unit
200: user terminal
210: wireless communication unit 220: GPS communication unit
230: control unit 240: input interface unit
250: output interface unit 260: memory unit
231: distance calculation module 232: GPS module
233: critical distance setting module 234: lost location management module
235: user notification module

Claims (10)

a wireless tag attached to the belongings and transmitting a signal through wireless communication; and
a user terminal configured to set a loss threshold distance to the wireless tag according to a user's setting, and to provide a notification to the user when the current distance to the wireless tag exceeds the loss threshold distance;
including,
The user terminal is a system for preventing loss of belongings for storing GPS (Global Positioning System) location information when the current distance to the wireless tag exceeds the loss threshold distance as lost location information.
According to claim 1, wherein the user terminal
a wireless communication unit performing wireless communication with the wireless tag;
GPS communication unit for generating GPS location information;
an input interface unit providing an input means to the user;
an output interface unit providing an output means to the user; and
a control unit configured to set the loss threshold distance according to the user's setting, and control to provide a notification to the user when the current distance to the wireless tag exceeds the loss threshold distance;
A system for preventing loss of belongings that includes.
According to claim 2, wherein the control unit
a distance calculation module controlling the wireless communication unit to calculate a current distance to the wireless tag;
a threshold distance setting module for setting a loss threshold distance with the wireless tag according to the user's setting; and
a user notification module for controlling the output interface to provide a notification to the user when the current distance exceeds the loss threshold distance;
A system for preventing loss of belongings that includes.
According to claim 3, wherein the control unit
a GPS module for checking GPS location information in conjunction with the GPS communication unit; and
In conjunction with the GPS module, the GPS location information when the current distance to the wireless tag calculated by the distance calculation module exceeds the loss threshold distance is stored and stored as the lost location information of the wireless tag location management module;
A system for preventing loss of belongings that includes.
The method of claim 1, wherein the wireless tag is
including a wireless antenna unit;
A system for preventing loss of belongings, which is a passive tag that operates based on power transmitted from the user terminal using the wireless antenna unit.
The method of claim 1, wherein the wireless tag is
It includes a wireless antenna unit and a power supply unit,
When a signal is received from the user terminal, the system for preventing loss of belongings is an active tag that transmits the identification information assigned to the wireless tag to the user terminal by using the power stored in the power supply.
As a method for preventing loss of belongings applied in a system for preventing loss of belongings using a wireless tag attached to belongings and transmitting a signal through wireless communication,
setting a loss threshold distance with the wireless tag according to a user's setting; and
providing a notification to the user when the current distance to the wireless tag exceeds the loss threshold distance;
A method of preventing loss of belongings, including.
The method of claim 7, wherein the method for preventing loss of belongings comprises:
storing GPS (Global Positioning System) location information when the current distance to the radio tag exceeds the loss threshold distance as lost location information;
A method of preventing loss of belongings further comprising a.
The method of claim 7, wherein the step of setting a loss threshold distance with the radio tag comprises:
storing the strength of a setting response signal of the wireless tag to a setting signal transmitted in response to a user's request for setting a threshold distance as the loss threshold distance;
A method of preventing loss of belongings, including.
10. The method of claim 9, wherein providing a notification to the user comprises:
transmitting a periodic signal to the radio tag;
receiving a periodic response signal to the periodic signal from the wireless tag; and
determining a lost state when the strength of the periodic response signal is weaker than the strength of the set response signal;
A method of preventing loss of belongings, including.

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