KR20090071962A - System for missing child search based location recognition and method thereof - Google Patents

Abstract

A system for searching a missing child based location recognition and a method thereof are provided to easily trace a location of a missing child by using USN type wireless communication, thereby displaying a moving picture of the missing child on a screen. Children portable tags generate their location information. The children portable tags include a USN(Ubiquitous Sensor Network) communication module. A plurality of gateways(41,42,43) obtains location information by performing USN type wireless communication with a child portable tag entering a corresponding management area(10,20,30). If missing child search is requested, a management server(100) displays a location path image on a screen based on location information per the child portable tag. The management server displays image information on a screen after obtaining the image information of the desired child portable tag by selecting a camera(51~53) corresponding to the location information per the child portable tag.

Description

System for missing child search based location recognition and method

The present invention recognizes the location of a lost child by applying a USN (Ubiquitous Sensor Network) in a store such as a department store or a large mart, and based on the recognized position to recognize the location of the image or location image of the lost on the monitor It is based on the missing child finding technology.

In general, there are many customers coming and going in department stores and large stores, and the mobility of customers in the stores is frequent, so the caregiver accompanying the child cares much about the child.

In particular, the purchase of a large number of items takes considerable time, in which case a guardian accompanied by an infant or child may perform two acts simultaneously, such as purchasing the item and probation of the infant or child, resulting in more time and effort. It becomes necessary. In addition, if the store is composed of several floors and a large store with a large floor area, it will be obvious that more time and effort are required to simultaneously perform the two acts of purchasing goods and observing children.

Looking briefly at the method of finding a lost child in a conventional department store or a large store, a guardian who lost a child goes to the information desk to inform that the child has lost, and the guide of the information desk finds the lost child through the Mia broadcast. Recently, a closed circuit TV (CCTV) is used to capture and store a video of element elements in a store, and to utilize video information stored in case of stolen goods or lost children.

However, in the case of a lost child in such a conventional large store, the method of finding a lost child is a method of finding a lost child by a human being when the information is lost, and when the video is used, the reliability of the lost child is not stored in the current image. There is a disadvantage that can not be. In addition, there is a method of finding a lost child using real-time video, but this method also causes a disadvantage that a guardian must search many screens or focus on a single screen quickly.

Accordingly, the present invention is proposed to solve the shortcomings of the method of finding lost in the conventional large stores as described above,

The problem to be solved by the present invention is to recognize the location of the lost child by applying a USN (Ubiquitous Sensor Network) in a store, such as a department store or a large mart, and monitor the image or location path image of the corresponding lost based on the recognized location The present invention provides a system and method for finding a location based on a child recognition system.

To solve the above problems, the "location-based lost search system" according to the present invention,

A plurality of children's portable tags that detect surrounding environment information in real time and generate location information thereof and include a USN communication module;

A plurality of gateways configured to acquire location information by performing USN wireless communication with a child portable tag that has entered a corresponding management area among the plurality of child portable tags;

A plurality of cameras for acquiring a video of the management area;

Acquire and store location information for each child portable tag connected to the plurality of gateways, and display a location path image on the screen based on the location information for each child portable tag acquired and stored when requesting a missing child or display the child portable tag. It includes a management server for selecting the camera corresponding to the location information to obtain the image information of the child portable tag to find and then display on the screen.

The management server registers the child portable tag, registers information of the child carrying it when the child portable tag is registered, and displays image information of the lost child or the location path information of the lost child on the screen. It is done.

In the above, each gateway of the plurality of gateways is divided and installed according to a certain management area, and characterized in that the location information is obtained by performing USN wireless communication with a child portable tag entering the area managed by the child.

In addition, the management server,

A function input unit for inputting information of the child, finding a lost child, and selecting a camera;

A data communication unit for communicating data with the child portable tag through USN wireless communication;

A child information management unit for storing and managing information of the child in association with an information database;

A location information management unit for storing location information of each child portable tag acquired through the data communication unit in the information database and managing the location information;

And a control unit for controlling a corresponding operation when inputting the child's information, finding a lost child, managing location information, and communicating with the child's portable tag.

These management servers,

An image receiver for receiving images acquired by the plurality of cameras;

An image processor for processing an image received by the image receiver;

The image management unit may further include an image management unit storing the moving image processed by the image processing unit in the information database and managing the moving image.

In addition, the management server,

Preferably, the control unit further includes an image display unit for extracting a surrounding image based on the location of the lost child acquired by the location information management unit from the information database and displaying the image on a monitor.

According to the present invention for solving the above problems, the "measurement method based on location recognition",

Registering child information, and registering child portable tag information corresponding to the registered child information;

Periodically connecting the gateway to receive child portable tag information of a corresponding region and updating location information for each tag;

Recognizing location information of a child portable tag carried by the corresponding Mia when a request for finding a missing child occurs, and selecting a camera corresponding to an area of the recognized location;

Receiving and processing image information acquired by the selected camera, and displaying the processed video on a monitor so as to check the forehead.

In addition, the location information update for each tag is characterized in that to periodically obtain the information of the child portable tag located in the corresponding area through the gateway, and to update the tag location information for each gateway.

Further, according to the present invention, the method of finding a lost child based on location recognition,

Searching for location information by tracking a tag carried by the MIA when the location of the corresponding MIA is outside the photographing area of the camera while displaying the image of the MIA to be searched for;

Selecting a camera corresponding to an area of the searched position, and acquiring and processing image information of the lost child through the selected camera;

The method may further include displaying the processed image information on the monitor.

According to the present invention described above, the location of the mia can be easily tracked using USN-type wireless communication in a store such as a department store or a large mart, and the video of the corresponding mia can be displayed on the screen, There is an advantage that you can easily find Mia in the same store.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. If it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is a block diagram showing the configuration of a location-based lost child search system according to the present invention, a plurality of child portable tags (11 to 30 + N), a plurality of gateways (41 to 43), a plurality of cameras ( 51 to 53 and a management server 100.

The plurality of children's portable tags 11 to 30 + N are tags that are temporarily provided by the store, and detect the surrounding environment information in real time, generate their own location information, and include a USN communication module. Such a child portable tag is recommended that a guardian registers child information (eg, name, age, etc.) at the first store visit, and registers the child portable tag in combination with the registered child information.

The plurality of gateways 41 to 43 perform a function of acquiring location information by performing USN wireless communication with a child portable tag that has entered a corresponding management area among the plurality of child portable tags. A plurality of children's portable tags located at 10, 20, and 30 are communicated using USN wireless communication to obtain location information.

The plurality of cameras 51 to 53 refers to a general closed circuit camera that acquires a video of the management areas 10, 20, and 30. That is, one camera 51 acquires only a video of one management area 10.

The management server 100 is connected to the plurality of gateways 41 to 43 to acquire and store location information for each child portable tag, and based on the location information for each child portable tag acquired and stored when requesting a lost child. A function of displaying a location path image on a screen or selecting a camera corresponding to the location information for each child portable tag to acquire image information of the child portable tag to be found and then displaying the image information on the screen. The management server 100 may be implemented as a personal computer (PC), or may be implemented as a general information terminal including communication, information processing, and monitor.

As shown in FIG. 2, the management server 100 includes a function input unit 104 for inputting information of the child, finding a lost child, and selecting a camera; A data communication unit 101 for communicating data with the child portable tag via USN wireless communication; A child information management unit 106 for storing and managing information of the child in association with the information database 110; A location information management unit 109 for storing location information for each child portable tag acquired through the data communication unit 101 in the information database 110 and managing the location information; A control unit 105 for controlling the operation of inputting the child's information, finding a lost child function, managing location information, and communicating with the child's portable tag; An image receiver 102 for receiving images acquired by the plurality of cameras; An image processing unit 103 for processing an image received by the image receiving unit 102; An image manager 107 for storing the video processed by the image processor 103 in the information database 110 and managing the moving image; The image display unit 108 which extracts a peripheral image based on the location of the lost child obtained by the location information management unit 109 from the information database 110 and displays it on the monitor when the lost function is performed under the control of the controller 105. ).

3 is a flowchart illustrating a first embodiment of a location recognition based lost search method according to the present invention, where S represents a step.

As shown therein, steps of registering child information and registering child portable tag information corresponding to the registered child information (S101 to S103); Periodically connecting the gateway to receive child portable tag information of a corresponding area and updating location information for each tag (S105 to S107); Recognizing location information of a child portable tag carried by the corresponding Mia when a request for finding a missing child occurs, and selecting a camera corresponding to an area of the recognized location (S109 to S113); Receiving and processing image information acquired by the selected camera, and displaying the processed video on a monitor so as to check the forehead (S115 to S117); Searching for location information by tracking a tag carried by the MIA when the location of the corresponding MIA is outside the photographing area of the camera while displaying the image of the MIA to be searched (S119 to S121); Selecting a camera corresponding to an area of the searched position and acquiring and processing image information of the lost child through the selected camera (S123 to S125); In step S127, the image information of the processed lost child is displayed on the monitor.

The location recognition based child finding system and the method according to the present invention made as described above, a child portable tag for finding a child accompanied by a child visits to a department store or a large discount mart to which the present invention is applied. Receive. At this time, the guardian provides simple child information (eg, name, age, school, etc.) to the administrator, selects a child input function through the function input unit 104 of the management server 100, and the guardian When the provided child information is input, in step S101, the controller 105 registers the child information by inputting the corresponding child information into the information database 110 through the child information management unit 106.

Subsequently, in step S103, when the information of the child portable tag to be provided to the child is input through the function input unit 104, the controller 105 combines the information with the child information and stores the information in the information database 110.

Here, there are many methods for identifying the information of the child portable tag, but in the present invention, a unique number is added to each child portable tag, and the administrator inputs only the unique number of the child portable tag in response to the child. The child information and the child portable tag corresponding thereto can be easily matched and registered.

The guardian carries the provided tag to the child, moves around the store to purchase goods, and the child freely enjoys shopping at the store. In this case, in order to prevent the carrying or the loss of the tag, it is preferable to attach a band or band to the tag separately so as to connect to children's clothes or to wear the band on the wrist or the like.

Next, when the registered tag moves in the store, the first to third gateways 41 to 43 perform USN method wireless communication with the tags located in the corresponding area to acquire the location information of the tag, and in step S105. As described above, the information is transmitted to the management server 100, and the location information management unit 109 of the management server 100 stores the location information of the acquired tag in the information database 110.

Here, the gateway and the child portable tag are combined by the USN wireless communication method, and thus the tag may be referred to as a sensor node. In a typical USN communication system, a gateway monitors and manages each sensor node while acquiring communication with a plurality of sensor nodes in a predetermined area, and obtains desired location information. Adopt it as it is. Here, the location information means the management areas 10, 20, and 30 of FIG. 1. This means that the information of the tag obtained by the first gateway 41 corresponds to the location corresponding to the management area 10, and the information of the tag obtained by the second gateway 20 indicates the location corresponding to the management area 20. In addition, the information obtained from the third gateway 300 refers to a location corresponding to the management area 30. In the present invention, only three gateways are illustrated, but in practice, these gateways are effective according to the size of the store. It is preferable to install.

In step S107, the location information management unit 109 registers the location information for each tag acquired by the gateway in the information database 110. Such tag location information is preferably updated in real time.

A guardian of a child who carries the child portable tag will immediately notify the manager when the child who accidentally loses the child while shopping. Then, the administrator inquires the child's information at the time of initial registration to the guardian, obtains the response, inputs the child's information through the function input unit 104, and requests the lost child function as in step S109.

When the child information is input, the location information manager 109 searches the information database 110 to find a location of a tag corresponding to the input child information, and when the location of the tag corresponding to the child is found, the controller 105 ) To inform it (S111).

The controller 105 checks an area of the searched tag and selects a camera corresponding to the area (S113). That is, like a gateway, a camera allows one camera to capture a video of an arbitrary management area.

When the video of the corresponding area is photographed by the camera, in step S115, the image receiving unit 102 receives the video obtained from the selected camera, and the image processing unit 103 processes it and transmits it to the control unit 105. Under the control of the controller 105, the image manager 107 stores the acquired image in the information database 110, and the image display unit 108 displays the obtained image on the monitor 111 in step S117. .

Accordingly, the guardian and the manager check the image of the lost child through the monitor 111, and by this confirmation, the lost child can be found quickly.

On the other hand, the mia may stay in the current position, but may move to another area. In this case, the image of the missing child may disappear from the monitor, and in the present invention, it is checked whether the missing information of the missing child is changed in step S119.

If the location information is changed as a result of the checking, the mobile station moves to step S121 to track the location information of the lost child through the gateway, and in steps S123 to S127, the camera corresponding to the tracked location of the lost child is reselected and lost. By acquiring the video and displaying it on the monitor, even if Mia moves, the location information is checked in real time and the Mia video is displayed on the screen.

4 is a flowchart illustrating a second embodiment of a location recognition based lost search method according to the present invention, where S represents a step.

As shown in the drawing, registering child information and registering child portable tag information corresponding to the registered child information (S201 to S203); Periodically connecting the gateway to receive child portable tag information of a corresponding area and updating location information for each tag (S205 to S207); Recognizing location information of a child portable tag carried by the corresponding Mia when a request for finding a missing child occurs, and displaying a location path image corresponding to an area of the recognized location on a monitor (S211 to S213); Searching for location information by tracking a tag carried by the MIA when the MIA's location moves while the MIA's location path image is displayed on a monitor (S215 to S217); In operation S219, a location path image corresponding to the searched location area is displayed on a monitor.

The second embodiment of the location-awareness-based lost child finding method according to the present invention as described above, a child portable to visit a department store or a large discount mart in which the present invention is applied first to find the child accompanied by the lost child Take a tag. At this time, the guardian provides simple child information (eg, name, age, school, etc.) to the administrator, selects a child input function through the function input unit 104 of the management server 100, and the guardian If the provided child information is input, in step S201, the control unit 105 registers the child information by inputting the corresponding child information into the information database 110 through the child information management unit 106.

Thereafter, in step S203, when the information of the child portable tag to be provided to the child is input through the function input unit 104, the controller 105 combines the information with the child information and stores the information in the information database 110.

Here, there are many methods for identifying the information of the child portable tag, but in the present invention, a unique number is added to each child portable tag, and the administrator inputs only the unique number of the child portable tag in response to the child. The child information and the child portable tag corresponding thereto can be easily matched and registered.

The guardian carries the provided tag to the child, moves around the store to purchase goods, and the child freely enjoys shopping at the store. In this case, in order to prevent the carrying or the loss of the tag, it is preferable to attach a band or band to the tag separately so as to connect to children's clothes or to wear the band on the wrist or the like.

Next, when the registered tag moves in the store, the first to third gateways 41 to 43 perform USN method wireless communication with the tags located in the corresponding area to acquire the location information of the tag, and in step S205. As described above, the information is transmitted to the management server 100, and the location information management unit 109 of the management server 100 stores the location information of the acquired tag in the information database 110.

Here, the gateway and the child portable tag are combined by the USN wireless communication method, and thus the tag may be referred to as a sensor node. In a typical USN communication system, the gateway monitors and manages each sensor node while obtaining communication with a plurality of sensor nodes in a predetermined area, and obtains desired location information. Adopt the system as it is. Here, the location information means the management areas 10, 20, and 30 of FIG. 1. This means that the information of the tag obtained by the first gateway 41 corresponds to the location corresponding to the management area 10, and the information of the tag obtained by the second gateway 20 indicates the location corresponding to the management area 20. In addition, the information obtained from the third gateway 300 refers to a location corresponding to the management area 30. In the present invention, only three gateways are illustrated, but in practice, these gateways are effective according to the size of the store. It is desirable to install.

In step S207, the location information management unit 109 registers the location information for each tag acquired by the gateway in the information database 110. Such tag location information is preferably updated in real time.

A guardian of a child who carries the child portable tag will immediately notify the manager when the child who accidentally loses the child while shopping. Then, the administrator inquires the child's information at the time of initial registration to the guardian, obtains the response, inputs the child's information through the function input unit 104, and requests the lost child function as in step S209.

When the child information is input, the location information management unit 109 searches the information database 110 to find a location of a tag corresponding to the input child information, and when the location of the tag corresponding to the child is found, the controller 105. Informs it to (S211).

The controller 105 checks an area of the searched tag, generates a position path image corresponding to the area, and displays the image on the monitor (S213). The location path image displayed on the monitor is a location path image from the time of registering the first MIA portable tag to the current location.

Therefore, the guardian and the manager check the location path image of the missing child through the monitor 111, and by this confirmation, the missing child can be found quickly, and the moving path of the missing child can be known.

On the other hand, the mia may stay in the current position, but may move to another area. In this case, the image of the lost child may disappear from the monitor, and in the present invention, it is checked whether the position information of the lost child is changed in step S215.

If the location information is changed as a result of the checking, the mobile station moves to step S217 to track the location information of the lost child through the gateway, and displays the newly generated location path image on the monitor by the location tracking (S219). Even if the location information is checked in real time, the location path image of Mia is displayed on the screen.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

According to the present invention described above, using the USN-type wireless communication can be easily found based on location recognition in any store, but not limited to this, if the server and the subordinate tag concept extends to the vehicle location in the parking lot, etc. Applicable to confirmation as well.

1 is a block diagram of a location-based lost search system according to the present invention.

2 is a block diagram showing an embodiment configuration of the management server of FIG.

3 is a flowchart illustrating a first embodiment of a location recognition based lost search method according to the present invention;

4 is a flowchart illustrating a second embodiment of a location recognition based lost search method according to the present invention;

Claims (9)

A plurality of children's portable tags that detect surrounding environment information in real time and generate location information thereof and include a USN communication module; A plurality of gateways configured to acquire location information by performing USN wireless communication with a child portable tag that has entered a corresponding management area among the plurality of child portable tags; A plurality of cameras for acquiring a video of the management area; Acquire and store location information for each child portable tag connected to the plurality of gateways, and display a location path image on the screen based on the location information for each child portable tag acquired and stored when requesting a missing child or display the child portable tag. And a management server that selects a camera corresponding to the location information and acquires the image information of the child portable tag to be found and displays the image on a screen. The system of claim 1, wherein the management server registers the child portable tag and registers information of the child carrying it when the child portable tag is registered. The method of claim 1, wherein each gateway of the plurality of gateways is divided and installed according to a schedule management area, and performs location information by performing USN-type wireless communication with a child portable tag entering the area managed by the gateway. Location-based lost search system. The method of claim 1, wherein the management server, A function input unit for inputting information of the child, finding a lost child, and selecting a camera; A data communication unit for communicating data with the child portable tag through USN wireless communication; A child information management unit for storing and managing information of the child in association with an information database; A location information management unit for storing location information of each child portable tag acquired through the data communication unit in the information database and managing the location information; And a control unit configured to control a corresponding operation when inputting the child's information, finding a lost child, managing location information, and controlling communication with the child's portable tag. The method of claim 4, wherein the management server, An image receiver for receiving images acquired by the plurality of cameras; An image processor for processing an image received by the image receiver; An image management unit for storing the moving image processed by the image processing unit in the information database and managing the moving image; And a video display unit for extracting a surrounding image based on the location of the lost child obtained by the location information management unit from the information database and displaying the image on a monitor under the control of the controller. Mia Finder System. Registering child information, and registering child portable tag information corresponding to the registered child information; Periodically connecting the gateway to receive child portable tag information of a corresponding region and updating location information for each tag; Recognizing location information of a child portable tag carried by the corresponding Mia when a request for finding a missing child occurs, and selecting a camera corresponding to an area of the recognized location; Receiving and processing image information acquired by the selected camera, and displaying the processed image on a monitor to identify a corresponding lost child. 7. The method of claim 6, wherein the location information update for each tag periodically acquires information of a child portable tag located in a corresponding area through a gateway, and updates tag location information for each corresponding gateway. Way. The method of claim 6, wherein displaying the image on a monitor comprises: A method for finding a lost child based on location recognition, characterized by displaying a video of a lost child or a location path image of a lost child on a screen. The method of claim 6, Searching for location information by tracking a tag carried by the MIA when the location of the corresponding MIA is outside the photographing area of the camera while displaying the image of the MIA to be searched for; Selecting a camera corresponding to an area of the searched position, and acquiring and processing image information of the lost child through the selected camera; And displaying the processed image information of the lost child on a monitor.

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