KR20150138453A - Position tracking system displaying geographic information - Google Patents

Abstract

The present invention relates to a positioning system which provides ambient geographic information along with an image of a wearer of an electric positioning device. The positioning system of the present invention comprises: an image recording terminal device (10) which receives GPS information from a portable positioning device of a wearer, and records an image by tracking the wearer; a terminal control device (20) which generates control data which tracks the wearer by using the GPS information of the image recording terminal device (10) and GPS information of the wearer transmitted from the image recording terminal device (10); and a geographic information management device (30) which provides the image of the wearer and geographic information transmitted from the image recording terminal device (10). The image recording terminal device (10) is controlled according to the control data to track the wearer.

Description

[0001] POSITION TRACKING SYSTEM DISPLAYING GEOGRAPHIC INFORMATION [0002]

The present invention relates to a position tracking system for displaying geographical information, and more particularly, to a position tracking system for providing surrounding geographical information together with images of a wearer of a position tracking electronic device.

A position tracking electronic device, so-called electronic footrest, is a device for monitoring the position or condition of a wearer using a portable tracking device, and is used to monitor a person who is likely to commit an offense or an elderly person living alone. In Korea, after the promulgation of the Law on the Attachment of Location-Tracking Electronic Devices to Specified Sexual Criminals, a person who is found to be at risk of reprising a sexual assault crime is required to attach a location tracking electronic device.

The position tracking electronic device is a portable tracking device that confirms the position of an object to be attached through a satellite positioning system and a mobile communication network by carrying a person with an electronic device (hereinafter referred to as an "attaching person"), A home monitoring device which is a device for confirming the position of an object to be inspected, and an attachment device (implemented by a brace or a bracelet) for attaching to a body of a non-attacher and transmitting electromagnetic waves to a portable tracking device and a home supervision device.

Conventional position tracking electronic devices merely display the position of an attached person on a map on a monitor, but a position tracking system linked to CCTV and the like has been developed as the acquisition of real time image information is required.

A conventional video surveillance system for an electronic footrest wearer is disclosed in Patent Document 1. FIG. 1 is a block diagram of a conventional video surveillance system for an electronic footwear wearer. The video surveillance system for a conventional electronic footwear wearer includes a CCTV management server (hereinafter referred to as " 1), a surveillance CCTV apparatus 3 for capturing an image by tracking an electronic footwear wearer provided with positional information from the CCTV management server 1, and a database 5 for storing and managing photographed image information .

However, since the conventional video surveillance system provides only the real-time image of the wearer of the electronic brace, it is difficult to track the situation when the police or the surveillant do not know the scene information in the emergency situation.

KR 10-1211366 B1 (Dec. 13, 2012)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the present invention, and it is an object of the present invention to provide a position tracking system that provides a video of a wearer of a position tracking electronic device and geographical information around the same.

A location tracking system for displaying geographical information according to the present invention includes: a video photographing terminal device for receiving GPS information in a portable tracking device of an attached person, tracking the attached person and shooting an image; A terminal control device for generating control data for tracking the attractee using GPS information of the image capturing terminal device and GPS information of the attractee transmitted from the image capturing terminal device; And a geographical information management device for providing the image and geographical information of the attacher together, wherein the image capturing terminal device is controlled according to the control data to track the attractee.

The location tracking system for displaying geographical information according to the present invention displays an image of an attractor and geographical information together so that an optimal tracking path can be intuitively recognized.

Therefore, it is easy to control such as crime, and it is possible to predict the movement line of the attacher.

FIG. 1 is a block diagram of a video surveillance system for a wearer of an electronic brace
2 is a block diagram of a position tracking system for displaying geographical information according to the present invention
Figs. 3 and 4 are diagrams showing a configuration of a video-
5 is a block diagram of a terminal control device
6 and 7 are views for explaining an algorithm for determining control data.
8 is a block diagram of the geographical information management apparatus
Fig. 9 is an exemplary diagram showing matching of an image coordinate system of an object to be attached and an image coordinate system of 3D geographic information
10 is a flowchart of an operation of a location tracking system for displaying geographical information according to the present invention.
11 is a view illustrating an embodiment of a location tracking system for displaying geographical information according to the present invention

Hereinafter, a location tracking system for displaying geographical information according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a configuration diagram of a location tracking system for displaying geographical information according to the present invention. The location tracking system for displaying the geographical information according to the present invention includes the video photographing terminal device 10, the terminal control device 20 and the geographical information management device 30 and further includes the control device 40 .

3 and 4 are block diagrams of a video-photographing terminal apparatus.

The video photographing terminal apparatus 10 receives GPS information from the portable tracking apparatus of the person to be attached and provides the GPS information to the terminal control apparatus 20 and the geographical information management apparatus 30 and receives a PTZ And a communication unit 18. The electronic compass 20 includes a GPS receiving unit 12, a camera unit 14, a camera control unit 16, and a communication unit 18, (19). ≪ / RTI >

The GPS receiving unit 12 is a component for receiving GPS information from a portable tracking device of an attached person and provides the GPS information received through the communication unit 18 to the geographic information management device 30 and the terminal control device 20 . The GPS receiving unit 12 can receive the GPS information only when the portable tracking device approaches within a predetermined distance and the radio wave intensity is secured to a certain extent. Therefore, the video imaging terminal device 10, which receives the GPS information, The probability of capturing an image of the person to be attached is high.

The camera unit 14 is a component for capturing an image of an object to be attached and generating image data. The direction angle Pan, elevation angle Tilt, and magnification Zoom are controlled by the camera control unit 16 . Therefore, the camera unit 14 can track an attached person and take an image.

The camera control unit 16 is a component for controlling the direction and magnification of the camera unit 14 and receives control data from the terminal control unit 20 to rotate the camera unit 14 to adjust the magnification. The control data includes pan data for determining the left and right rotation angles of the camera unit 14, tilt data for determining the tilt angle in the vertical direction, and zoom data for adjusting the camera magnification .

The communication unit 18 is a component that transmits and receives data and commands between the video imaging terminal device 10 and other components such as the geographical information management device 30 and the terminal control device 20. [ The communication unit 18 transmits the GPS information to the geographical information management device 30 and the terminal control device 20 and transmits the photographed video data to the geographical information management device 30 and transmits the control data to the terminal control device 20 .

The electronic compass 19 is a component for providing a reference direction for sensing or controlling the direction of the video imaging terminal device 10, particularly, the camera portion 14, The image capturing terminal apparatus 10 is set to be the same as the direction of the electronic compass 19 at the time of initialization so that the video image capturing terminal apparatus 10 receives the control data in an arbitrary direction and is not directed in the wrong direction When the video shooting terminal device 10 is oriented in an arbitrary direction, when a pan data and a tilt data with respect to a reference direction are received, an image having no relation to the position of the attached person can be taken. Specific examples of the electronic compass 19 include a two-axis geomagnetic sensor, a three-axis geomagnetic sensor, and a gyroscope.

5 is a configuration diagram of the terminal control device.

The terminal control device 20 generates control data using the GPS information of the video imaging terminal device 10 and the GPS information of the attached person transmitted from the video imaging terminal device 10 and transmits the control data to the video imaging terminal device 10, And the geographical information management apparatus 30, the terminal DB unit 22 in which the GPS information of the video image capturing terminal apparatus 10 is stored, the video image capturing terminal apparatus 10 to track the attacher, And a communication unit 26. The communication unit 26 is connected to the communication unit 26,

The terminal DB unit 22 is a component for storing the GPS information of each video imaging terminal device 10. [ In order for the video imaging terminal device 10 to track an attached person and take an image, the location information of the portable imaging device 10 and the portable tracking device carried by the attached person, that is, the GPS information of the imaging terminal device 10, GPS information of the person to be attached is needed. Accordingly, the GPS information of the location where the video image capturing terminal 10 is installed is required. The GPS information of each video image capturing terminal 10 is stored in the terminal DB 22.

The position control unit 24 is a component for generating control data for determining the pan, tilt, and zoom of the video imaging terminal device 10. [ An algorithm for determining the control data in the position control unit 24 is as follows.

Figs. 6 and 7 are reference diagrams for explaining an algorithm for determining control data.

The fan data is a value corresponding to a direction angle in a spherical coordinate system, and corresponds to an angle at which the image capturing terminal apparatus 10 should be rotated horizontally with respect to the reference direction. Therefore, the fan data is determined as a direction angle? In which the reference direction D _R should be rotated in the horizontal direction to track the position E of the target to be attached as shown in Fig.

The tilt data is a value corresponding to the elevation angle in the spherical coordinate system, and corresponds to an angle at which the video imaging terminal device 10 should be rotated perpendicular to the reference direction. The tilt data can be obtained using the GPS information of the video shooting terminal device 10 and the portable tracking device. More specifically, the horizontal distance between the video image capturing terminal device 10 and the person to be attracted (portable tracking device) is set to be a base d, and a right angle Assuming a triangle, the direction angle? Can be obtained by the following equation (1).

At this time, since the reference point of the attacher for determining the height h is a point that the video-shooting terminal device 10 has to track, it is preferable that the reference point is set to about the height of the chest or the waist so as to capture the entire figure of the person. In the case of d = 20m and h = 3.8m shown in Fig. 6,? ≒ 11 占.

In general, since the image capturing terminal apparatus 10 captures a distance longer than the height (h << d), a large error is not generated even if approximated by the following formula (2) (unit: radian).

The zoom data can be determined to be the adjusted value so that the subject can be photographed at a predetermined size (step 3 in FIG. 7) as shown in FIG.

The communication unit 26 receives the GPS information of the person to be attached from the video imaging terminal device 10 and transmits the control data to the video imaging terminal device 10.

8 is a configuration diagram of the geographical information management apparatus.

The geographical information management apparatus 30 includes a geographical information DB unit 32 and a user interface unit 34. The geographical information management unit 30 includes a geographical information DB unit 32 and a user interface unit 34. The geographical information management unit 30 includes a geographical information DB unit 32, And may further include a manual control unit 36. [

The geographical information DB unit 32 stores the 2D or 3D geographical information corresponding to the GPS information, for example, fixed information such as terrain, geology, buildings, etc., and fluctuation information such as road conditions, temperature, humidity, rainfall, .

The user interface unit 34 adds geographic information provided by the geographic information DB unit 32 to the image of the person to be attached transmitted from the video imaging terminal device 10 and displays the image. At this time, if 3D geographic information is to be displayed, the geographic information is displayed by three-dimensional rotation conversion so as to be the same as the direction in which the image capturing terminal device 10 photographs. For example, if the pan data of the video-photographing terminal apparatus 10 is 90 degrees, the tilt data is 10 degrees, and the zoom data is 2 times, the 3D geographic information may also be 90 degrees in direction angle, 10 degrees in altitude, Displayed in the set state. By doing so, the image transmitted from the video imaging terminal device 10 and 3D geographic information coincide.

Fig. 9 is an illustration showing an example in which an image coordinate system of an object to be attached matches an image coordinate system of 3D geographic information. The x-y-z1 axis, which is the image coordinate system of the 3D geographic information, can be rotated in the direction of the arrow to match the P-T-Z axis, which is the image coordinate system.

Each video image capturing terminal 10 is displayed on the user interface unit 34 to select a specific video image capturing terminal 10 to track the attacher. For example, when the image photographed by the video shooting terminal device 10 receiving the GPS information of the person to be attached is popped up in the window, the geographical information around the attached person and the other video shooting terminal device 10 If the other image capturing terminal device 10 wishes to track the attached person, the image capturing terminal device 10 for tracking the attached person by selecting the video image capturing terminal device 10 as an input device such as a mouse on the window ) Can be changed or added. At this time, after the photographing direction of the video-photographing terminal device 10 coincides with the direction in which the 3D geographical information is displayed, the 3D photographing device 10 and the 3D geographical information are rotated and zoomed / desirable.

The manual control unit 36 is a component that allows the user to manually control the specific video-image shooting terminal device 10 without putting it under the control of the terminal control device 20. [ At this time, in order to prevent the control data transmitted to the video imaging terminal device 10 from overlapping, the control data of the manual control unit 36 may be given priority over the control data of the terminal control device 20, It is possible to inhibit transmission of the control data to the video shooting terminal device 10. [ A specific form of the manual control unit 36 may be to directly input the pan, tilt, and zoom data on the keyboard, or horizontally rotate, vertically rotate, and scroll the operating mechanism such as a joystick and a scroll button.

The geographical information management apparatus 30 may further include a storage unit for storing the geographical information indicating the movement path of the person to be attached and / or the image data transmitted from the video imaging terminal apparatus 10.

The control device 40 is a component that simultaneously displays images and geographic information of a plurality of attractors provided by the geographical information management device 30. [ Since the location tracking system that displays geographical information can catch the adherent at several places at the same time, it can be regarded as a constituent element for overall control systemization. The control device 40 is provided with an attacher DB section in which additional information including at least one of personal information of an attached person, criminal history, and impression wearer is stored, so that not only video and geographical information of the person to be attached but also additional information is displayed .

10 is an operational flowchart of a location tracking system for displaying geographical information according to the present invention.

(1) When a GPS signal is received from the portable tracking device of the target, which is the target, to the video imaging terminal device 10 (S10)

(2) After the geographical information management device 30 matches the photographing direction of the video photographing terminal device 10 with the direction in which the 3D geographical information is displayed (S20)

(3) The control device 20 generates control data (S30)

(4) According to the control data, the video image capturing terminal device 10 and 3D geographic information are rotated and enlarged / reduced (S40)

5) Attachee and 3D geographic information are popped up in window (S50)

(6) Receive the manual control of the user (S60), and after the popup window is closed, the GPS movement path and image are stored and initialized. At this time, the initialization is set to an initial position of the video-shooting terminal device 10, for example, the north of the electronic compass 19.

FIG. 11 illustrates an embodiment of a location tracking system for displaying geographical information according to the present invention.

The left image is the image photographed by the video shooting terminal device 10 and the right image is the image displaying the 3D geographical information. Below, a manual control unit for controlling the pan, tilt, and zoom is implemented. The image and the 3D geographic information may be separately displayed as shown in FIG. 11, or the 3D geographic information may be overlapped on the image.

10 video shooting terminal device 12 GPS receiver
14 Camera section 16 Camera control section
18, 26 Communication section 19 Electronic compass
20 Terminal control device 22 Terminal DB section
24 Position Control Unit 30 Geographical Information Management Device
32 Geographic information DB part 34 User interface part
36 Manual control unit 40 Control unit

Claims (9)

A video photographing terminal device (10) for receiving GPS information from a portable tracking device of a person to be inspected, and photographing the subject by tracking the subject;
A terminal control device 20 for generating control data for tracking the attractee using the GPS information of the video image capturing terminal 10 and the GPS information of the attractee transmitted from the video image capturing terminal 10;
And a geographical information management device (30) for providing the image of the attached person and the geographical information transmitted from the video imaging terminal device (10) together,
Wherein the image capturing terminal device (10) is controlled according to the control data to track the attractee.
The method according to claim 1,
The video image capturing terminal device 10 includes a GPS receiver 12 for receiving GPS information from the portable tracking device of the attached person;
A camera unit (14) for capturing an image of the person to be attached and generating image data;
A camera control unit 16 for controlling the direction and magnification of the camera unit 14 according to the control data,
And a communication unit (18) for transmitting and receiving data between the video imaging terminal device (10), the geographical information management device (30) and the terminal control device (20) .
The method of claim 2,
Wherein the image capturing terminal device (10) further comprises an electronic compass (19) for providing a reference direction for sensing or controlling a direction of the camera section (14) Location tracking system.
The method according to claim 1,
The terminal control unit 20 includes a terminal DB unit 22 for storing GPS information of the video imaging terminal device 10;
A position control unit (24) for selecting the video-shooting terminal device (10) to track the attached person and generating corresponding control data,
And a communication unit (26) for receiving the GPS information of the attached person from the video imaging terminal device (10) and transmitting the control data to the video imaging terminal device (10). Location tracking system.
The method according to claim 1,
The geographical information management apparatus 30 includes a geographical information DB unit 32 storing 2D or 3D geographical information corresponding to GPS information,
And a user interface unit (34) for adding and displaying the geographical information provided by the geographical information DB unit (32) on the image of the attached person transferred from the video imaging terminal device (10) A location tracking system that displays information.
The method of claim 5,
Wherein the geographical information management device (30) further comprises a manual control unit (36) for manually controlling the video imaging terminal device (10).
The method of claim 5,
After the photographing direction of the image capturing terminal 10 is coincided with the direction in which the 3D geographical information is displayed, the 3D photographing terminal 10 and the 3D geographical information are rotated and enlarged / reduced together according to the same control data Wherein the geographical information is displayed on the display unit.
The method according to claim 1,
Further comprising a control device (40) for simultaneously displaying images and geographical information of a plurality of attachments provided by the geographical information management device (30).
The method of claim 8,
The control apparatus 40 includes an attached DB unit in which additional information including at least one of personal information of a person to be attached, a crime history, and impression information is stored, and displays the image, geographic information, and additional information of the person to be attached A geographic tracking system that displays geographic information as a feature.

Images