KR101317428B1 - Spatial information system controlling cctv and operating method thereof - Google Patents

Abstract

PURPOSE: A space information system and an operating method thereof are provided to confirm a photographing direction of an external camera by correcting an error between a camera direction on a map and a direction of an external camera. CONSTITUTION: A map processing unit (130) outputs a map which indicates multiple cameras which correspond to multiple external cameras. A video processing unit (120) outputs an image which is photographed from external cameras. A conversion processing unit (150) produces a correction value about each of multiple external cameras. The conversion processing unit receives information which selects a camera and information which selects a first point indicating the photographing direction of the camera. A camera driving unit (140) controls a driving of an external camera by responding to a first control signal. [Reference numerals] (100) Space information system; (110) System control unit; (120) Video processing unit; (130) Map processing unit; (140) Camera driving unit; (150) Conversion processing unit; (160) Interlocking processing unit; (210) GIS server; (220_1) Camera 1 (CCTV); (220_2) Camera 2; (220_N) Camera N

Description

Spatial Information System controlling CCTV and Operating Method

The present invention relates to a spatial information system and an operation method thereof, and more particularly, to a spatial information system having a camera control function for synchronizing a direction of an external camera with a direction of a camera on a map and an operation method thereof.

In general, a geographic information system (GIS) or spatial information system is a computer's hardware, software, and geographic data designed to effectively collect, store, update, analyze, and present all types of geographically referable information, and An integrated human resource, which can be defined as a computer system that collects and makes available data describing a location on the earth's surface. GIS or spatial information systems can assist users by storing, extracting, managing, and analyzing topographical information that spatially represents locations for reference to various earth surface information. The system may be defined in various forms. As an example, a GIS server that provides information required for a client may be defined by systemizing and constructing various geographic information, and a system including spatial information and various other information in the client may be defined. By building, a spatial information system that provides a spatial information service to a user can be defined.

As an example of the spatial information service, a plurality of cameras (eg, surveillance cameras (CCTV), etc.) installed outside are managed, and a user controls an external camera using a virtual camera (or a camera icon, etc.) displayed on a map. Function can be built. For example, a plurality of external cameras installed in a predetermined area may be displayed on a map, and a service for checking an image captured from the external camera through the system may be provided according to the selection of the displayed camera.

In the related art, a control function such as simply checking an image photographed from a selected camera or simply shifting a photographing direction according to a photographing angle set in each external camera is provided. However, in such a case, it is difficult to grasp the position photographed by the external camera in detail, and it is difficult to efficiently control the camera.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a spatial information system having a camera control function in which the direction of a camera on a map is synchronized with the direction of an external camera, and an operation method thereof.

In order to achieve the above object, a method of operating a spatial information system according to an embodiment of the present invention, calculating and storing a correction value for each of a plurality of cameras, and a plurality of cameras displayed on a map Receiving information selecting one of the cameras and information selecting a first point indicating a photographing direction of the camera, and a direction in which the selected camera faces the first point based on a predetermined first direction Calculating a first angle of, calculating a second angle by using a correction value corresponding to the selected camera and the calculated first angle, and controlling an external camera corresponding to the selected camera, And outputting a camera driving signal according to the calculated second angle.

Preferably, the calculating and storing of the correction value include calculating an angle between the reference direction of the external camera and the first direction as the correction value, wherein the first direction is the first angle. When 0 corresponds to 0 degrees, it characterized in that the direction of the camera on the map.

Also preferably, each of the plurality of cameras displayed on the map corresponds to each of the plurality of external cameras, and at least two of the plurality of external cameras have different reference directions and thus different correction values. It is characterized in that it is calculated.

On the other hand, the operation method of the spatial information system according to another embodiment of the present invention, the step of selecting a first camera corresponding to the first external camera on the map, and selecting at least one direction facing the first camera and the direction Storing information, selecting a second camera corresponding to the second external camera on a map, selecting one or more directions to which the second camera faces, and storing the direction information; Storing the linkage information in which any one direction of the second camera is linked with the direction of the second camera; and controlling the first and second external cameras using at least one of the stored direction information and the linkage information. Characterized in having a.

Preferably, the operation method of the spatial information system, the method comprising the steps of receiving an event, receiving information of the first external camera, and the first of the plurality of external cameras linked to the first external camera And retrieving an external camera, controlling the direction of the second external camera corresponding to the direction of the first external camera according to the retrieving the interworking information and the interworking information. It is done.

Also preferably, when the first direction of the first external camera and the second direction of the second external camera are interlocked, the second event is received when the event is received and the first external camera faces the first direction. The external camera is controlled to face the second direction.

On the other hand, the spatial information system according to an embodiment of the present invention, a map processing unit for outputting a map displaying a plurality of cameras corresponding to a plurality of external cameras, a video processing unit for outputting images taken from the external cameras and Calculating a correction value for each of the plurality of cameras, receiving information on selecting one of the plurality of cameras displayed on the map, and selecting information on a first point indicating a shooting direction of the camera; A conversion processor configured to calculate a first angle on the map using information, and to output a first control signal for controlling the external camera by calculating a second angle using the calculated first angle and the correction value. And a camera driver for controlling driving of the external camera in response to the first control signal. .

According to the spatial information system having a camera control function of the present invention and its operation method as described above, it is possible to confirm the shooting direction of the external camera by correcting the error between the direction of the camera on the map and the direction of the external camera through a correction value. It works. In addition, by setting and storing one or more photographing directions of each external camera and storing interworking information of at least two external cameras, interlocking control of the cameras is possible when an event occurs, thereby enabling an immediate response to the event.

1 is a block diagram illustrating an implementation of a spatial information system according to an embodiment of the present invention.
2 is a block diagram illustrating a specific implementation of the conversion processing unit of FIG. 1.
3 is a block diagram illustrating a specific implementation of the interlocking processor of FIG. 1.
4A, 4B and 4C are block diagrams illustrating an example of correcting a photographing direction of an external camera.
5 is a diagram illustrating an example of a video output screen in which a correction value is reflected.
6 is a flowchart illustrating a method of operating a spatial information system according to an embodiment of the present invention.
7 illustrates a preset function according to an embodiment of the present invention.
8 is a flowchart illustrating a method of operating a spatial information system according to another embodiment of the present invention.
9 is a diagram illustrating a camera linking function according to an embodiment of the present invention.
10 is a flowchart illustrating a method of operating a spatial information system, according to another embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 is a block diagram illustrating an implementation of a spatial information system according to an embodiment of the present invention. As shown in FIG. 1, the spatial information system 100 according to an embodiment of the present invention may be connected to an external GIS server 210 through a predetermined network (not shown), and together with a plurality of external devices. Cameras (eg, CCTV, 220_1-220_N) may be connected through a wired or wireless communication network.

The GIS server 210 may be a server that provides all types of information that can be geographically referenced, and when there is information to be updated in addition to the information stored in the spatial information system 100, the spatial information system 100 may include a GIS. The information may be received through communication with the server 210. That is, the spatial information system 100 may provide a function of displaying spatial information on a map according to a user's request, and when additional information for providing the corresponding function is required, the spatial information system 100 is connected to the GIS server 210. To receive the corresponding information.

The external cameras 220_1-220_N may include various cameras such as CCTV installed in an area where a management service by the spatial information system 100 is provided, and images (eg, videos) captured by each external camera are spaces. The spatial information system 100 may control panning, tilt, zoom, and the like of the external cameras through a user's manipulation. The spatial information system 100 displays a camera (eg, a camera icon) on a map corresponding to the external cameras, and when a camera is selected by the user, plays a video received from an external camera corresponding to the selected camera. Provides the ability to

According to an embodiment of the present invention, the spatial information system 100 provides a function of controlling the PTZ of the camera based on the spatial information. In particular, by unifying the direction system on the map and the PTZ direction system of the external camera, the external camera can capture the selected point along the point selected by the actual user. That is, when controlling PTZ of an external camera based on spatial information, a correction value corresponding to each external camera is preset and stored, and a correction angle using the correction value in calculating a direction using a selected camera and a selected point. By calculating the space information and the external camera can be synchronized. As a result, it is possible to improve the problem that it is difficult to distinguish the location where the external camera is actually installed and the direction in which the external camera is photographed by only playing the video photographed by the external camera.

The spatial information system 100 controls a system-wide operation and, according to an embodiment of the present invention, may include a system controller 110 that controls an overall function for synchronizing the direction of the camera on the map with the direction of the external camera. Can be. In addition, the spatial information system 100 may further include a video processor 120, a map processor 130, a camera driver 140, a conversion processor 150, an interworking processor 160, and a database 170. The functional blocks included in the spatial information system 100 of FIG. 1 may perform each function under the control of the system controller 110.

The video processor 120 executes the photographing file provided from the external cameras 220_1-220_N to play and output the video. The video processor 120 may simultaneously play back video from one or more external cameras. For example, when a user performs a selection operation on cameras displayed on a map, the video processor 120 may be provided from external cameras corresponding to the selected cameras. The shooting file can be executed.

Meanwhile, the map processor 130 outputs a map using information related to geography stored in the database 170, and particularly displays cameras corresponding to each of the external cameras installed on the map. In addition, a selection function for the cameras displayed on the map is provided, and a synchronization function with an external camera for the selected camera, a preset function for a shooting angle, and an interworking function are provided.

The camera driver 140 performs PTZ control for driving an external camera, and accordingly, controls the shooting direction of the external camera. The spatial information system 100 may generate a control signal reflecting a synchronization function and an interworking function therein, and the camera driver 140 may generate a drive signal for PTZ control of an actual external camera in response to the generated control signal. Create and print

The conversion processing unit 150 provides a function of unifying the direction system of the camera on the map and the direction system of the external camera. For example, the conversion processor 150 may calculate and store a correction value corresponding to each of the external cameras 220_1-220_N, and calculate an angle on a map using information related to a camera selected by a user and a selection point. do. In addition, a calculation with the calculated angle is performed using the correction value stored corresponding to the selected camera, and a correction angle is calculated based on the calculation result. The control signal is generated and output to the camera driver 140 based on the calculated correction angle, and the camera driver 140 generates a drive signal in response to the received control signal and outputs it to the external camera.

Meanwhile, the linkage processor 160 sets and stores information on one or more photographing directions of each of the plurality of external cameras 220_1-220_N, and also sets and stores linkage information of at least two external cameras. For example, the shooting direction information and the interlocking information of each external camera may be defined as preset information, and the user may set and store preset information through a selection operation for a plurality of cameras displayed on a map. The user may select a camera displayed on the map and select a shooting direction set for each camera based on preset information. The external camera corresponding thereto provides a moving picture photographing a preset direction. In controlling the photographing direction of the external camera, the above-described correction value search and correction angle calculation operations may be reflected.

In addition, when receiving a predetermined event, the spatial information system 100 may link shooting operations of two or more external cameras. For example, when an event such as a wanted vehicle discovery occurs, it is necessary to continuously photograph the moving state of the vehicle with an external camera. To this end, the interlocking processing of the external cameras 220_1-220_N is performed under the control of the system controller 110. The interlocking processor 160 may generate and output a control signal with reference to the preset information. For example, when the first and second external cameras interlock with each other, the first external camera may refer to the preset information when an event occurs. When the first direction is taken, the second external camera controls the second external camera to shoot the preset second direction.

2 is a block diagram illustrating a specific implementation of the conversion processing unit of FIG. 1. As illustrated in FIG. 2, the conversion processor 150 may include the first angle calculator 151, the second angle calculator 152, the correction value storage unit 153, and the first control signal generator 154. It may include. A synchronization operation according to an embodiment of the present invention will be described with reference to FIGS. 2 and 4A, B, and C as follows. 4A, 4B and 4C are block diagrams illustrating an example of correcting a photographing direction of an external camera.

As described above, according to the embodiment of the present invention, the shooting direction system of the camera on the map and the shooting direction system of the external camera are unified. When the photographing angle when the camera is photographed on the map in the positive direction is defined as 0 degree, when the panning angle of the external camera is 0 degree, the actual photographing direction of the external camera may not be the positive direction. In addition, the external cameras 220_1 to 220_N may photograph different directions when the photographing angle Panning is 0 degrees. Thus, even if a user selects a camera on a map and selects a predetermined photographing direction, the external cameras 220_1 to 220_N actually correspond to the photographing directions. The external camera may capture a direction different from the user's selection.

Referring to FIG. 4A, the camera on the map may rotate in the counterclockwise direction with the affective direction at 0 degrees. On the other hand, the external camera can adjust the photographing direction by rotating counterclockwise in a state in which the direction corresponding to 0 degree is unknown. In order to compensate for the difference in the angle system, a correction value calculating operation corresponding to each of the external cameras as illustrated in FIG. 4B may be performed.

For example, when the photographing angle of the first camera on the map is shown as a solid line, the photographing angle of the first external camera is assumed to be in the forward direction when the photographing angle is 0 degrees and toward the true north direction when the photographing angle is 90 degrees. Is a direction in which the photographing angle of the first camera on the map corresponds to 45 degrees. In this case, the correction value corresponding to the first camera (or the first external camera) may be set to 45 degrees and stored.

Similarly, the second and third cameras on the map have the same direction system as the first camera. On the other hand, the direction indicated by the second external camera corresponding to the second camera when the photographing angle is 0 degrees may be a direction in which the photographing angle of the second camera on the map corresponds to 150 degrees. In this case, the correction value corresponding to the second camera (or the second external camera) may be set to 150 degrees and stored. In addition, the direction indicated by the third external camera corresponding to the third camera when the photographing angle is 0 degrees may be a direction in which the photographing angle of the third camera on the map corresponds to 359 degrees. In this case, the correction value corresponding to the third camera (or the third external camera) may be set and stored at 359 degrees.

4C illustrates an example of calculating a correction angle using stored correction values. According to an embodiment of the present invention, the formula for calculating the correction angle C by applying the correction value may correspond to (360 + A-B) mod 360. In the above formula, A represents a photographing angle of a camera for photographing a selected point on a map, and B represents a correction value set and stored corresponding to each camera.

As an example, when any point is clicked so that the photographing angle of the first camera on the map faces 135 degrees, and the correction value corresponding to the first camera is stored at 45 degrees, the actual photographing angle of the first external camera is determined. The correction angle C for controlling may have a value of (360 + 135-45) mod 360, and the calculated correction angle C has a value of 90 degrees. That is, when a point is selected so that the first camera rotates 135 degrees counterclockwise from the forward direction, the first external camera corresponding to the first camera rotates by 90 degrees while the reference camera is photographing the reference direction. Done.

Similarly, if any point is clicked so that the shooting angle of the first camera on the map is pointed at 30 degrees, the correction angle C for controlling the actual shooting angle of the first external camera is (360 + 30). 45) It may have a value of mod 360, and the correction angle C thus calculated has a value of 345 degrees. That is, when the point is selected so that the first camera rotates by 30 degrees counterclockwise from the forward direction, the first external camera corresponding to the first camera rotates the shooting angle by 345 degrees while shooting the reference direction. Done.

Referring back to FIG. 2, the first angle calculator 151 receives information about a camera selected by a user and information about coordinates of a point clicked (or selected) on a map by the user, and the first angle calculator 151 receives the first angle therefrom. Calculate and output As described above, the first angle calculator 151 may calculate, as the first angle, an angle in a direction in which the camera faces the selected point when assuming an orthogonal direction as 0 degree.

In addition, the second angle calculator 152 may calculate and output the correction angle to which the correction value is applied as the second angle. According to the camera information, a correction value set and stored in correspondence with the selected camera is read from the correction value storage unit 153 and provided to the second angle calculation unit 152, and the second angle calculation unit 152 is calculated previously. The second angle is calculated by calculating the first angle and the correction value. The calculated second angle may correspond to an angle to be rotated in the direction in which the actual external camera is to be photographed, corresponding to the camera and the point selected on the map by the user.

The first control signal generator 154 receives the calculated second angle information and generates a first control signal based on the calculated information. The first control signal is a control signal necessary to drive the external camera, and may include PTZ information for PTZ control including the photographing direction of the external camera together with information of the external camera to control the driving. The first control signal may be provided to the camera driver 140 of FIG. 1.

In the above-described embodiment, the first angle is defined as the angle to be rotated to photograph the point selected by the user with the reference point as a starting point, but the embodiment of the present invention is not limited thereto. For example, the first angle may be defined as an angle to be rotated to capture a point selected by the user using the current shooting direction of the selected camera as a starting point, and the correction angle may be calculated using the calculated first angle. .

5 is a diagram illustrating an example of a screen of a captured image reflecting a correction value. FIG. 5 illustrates an example of selecting a camera on a map and selecting a point to which the camera faces on a map, and an example in which a direction in which an external camera photographs is moved according to the selection of the camera and the point. Although only one camera is shown on the map in FIG. 5, multiple cameras may be shown and the user may select one or more cameras.

The photographing direction of the camera on the map corresponds to the a direction, and one point toward the b direction may be selected by the user. The selected camera rotates the photographing direction, for example, may rotate in the counterclockwise direction in the b direction according to the user's selection.

The above-described conversion processing unit 150 calculates an angle between the a direction and the b direction as the first angle, and calculates a second angle (correction angle) using the calculated first angle and a correction value corresponding to the selected camera. Calculate. For example, the angle when the camera on the map faces the positive direction is defined as 0 degrees, and when the reference angle of the corresponding external camera corresponds to 45 degrees on the map, the correction value will have a value of 45 degrees, in which case the conversion processor 150 will calculate the correction angle by subtracting 45 degrees from the first angle in the counterclockwise direction. By driving the external camera according to the calculated correction angle, the external camera will be driven to capture an area corresponding to the point selected by the actual user.

Meanwhile, a function according to another embodiment of the present invention will be described with reference to FIG. 3. 3 is a block diagram illustrating a specific implementation of the interlocking processor of FIG. 1. As illustrated in FIG. 3, the linkage processor 160 may include a preset setting unit 161, a preset information storage unit 162, a shooting information receiver 163, a link camera search unit 164, and a link direction search unit 165. ) And a second control signal generator 166.

The preset setting unit 161 may preset and store one or more photographing directions of each camera through a selection operation for a plurality of cameras displayed on a map. For example, when n external cameras exist in a predetermined zone, n cameras corresponding to the corresponding zones are displayed on a map representing the corresponding zone, and when a preset function is selected by the user, the shooting direction of each camera is preset. Operation is performed. One or more photographing directions may be preset in correspondence with each other. For example, four photographing directions may be set for one camera and three photographing directions for another camera.

When the preset function is performed by the user, the preset information storage unit 162 stores various kinds of information according to the execution result of the corresponding function. For example, information related to one or more photographing directions may be stored as preset information for each of the first to nth cameras. In addition, according to an embodiment of the present invention, a linkage function for at least two cameras is provided, and thus linkage information for at least two cameras may be further stored in the preset information storage unit 162 as preset information.

The interlocking information may be information obtained by interlocking photographing directions between adjacent cameras. For example, the first and second cameras may be disposed adjacent to each other, and the first photographing direction of the first camera and the second photographing direction of the second camera may be linked to each other. Such interlocking information is used when a predetermined event occurs, such as an emergency, so that the camera can be linked. For example, if the first camera is controlled to face the first shooting direction when an event occurs, the second camera faces the second shooting direction by using the interlocking information in order to capture a moving path of the wanted vehicle. It can be interlocked control.

For the above interlocking function, the photographing information receiving unit 163 receives photographing information (camera information, photographing direction information, etc.) of a specific camera (eg, the first camera) under a predetermined event reception. The companion camera search unit 164 searches for at least one camera linked thereto based on the received photographing information. In addition, the interlocking direction search unit 165 searches for capturing direction information linked to the capturing direction of the first camera among a plurality of capturing directions set in the camera (eg, the second camera) found to be linked. For the above search operation, information stored in the preset information storage unit 162 may be provided to the linked camera search unit 164 and the linked direction search unit 165, respectively.

The second control signal generator 166 receives the search results and outputs a second control signal to the camera driver 140 of FIG. 1. The second control signal may include linked camera information (for example, the second camera information described above) to be controlled in conjunction with a shooting operation of the first camera, and the second control signal is also captured by the second camera linked to the shooting direction of the first camera. It may include direction information (or PTZ information). If there are two linked cameras adjacent to the first camera, one linked camera corresponds to the second direction and the other linked camera corresponds to the shooting direction of the first camera. The second control signal may be a signal including such information.

In relation to the interlocking operation according to an embodiment of the present invention, the above-described camera information may be camera information on a map or external camera information received from the outside. That is, the spatial information system of the present invention may receive information related to a shooting direction from external cameras, and control the shooting direction of other external cameras linked thereto according to the shooting direction of the external cameras when an event occurs. In addition, although not described above, when an event occurs, the user may select a camera displayed on a map to play a video provided from an externally controlled camera.

6 is a flowchart illustrating a method of operating a spatial information system according to an embodiment of the present invention.

As shown in FIG. 6, a correction value is calculated for each camera (or for each external camera) based on the difference between the photographing angle of the camera on the map and the photographing angle of the actual external camera, and stored in the spatial information system. (S11).

Thereafter, a map on which a plurality of cameras are displayed is output according to a function of the spatial information system, and a camera which wants to adjust a shooting direction or a video playback is selected by the user (S12). If the shooting direction adjustment function of the external camera is performed, a point to be photographed is selected on the map together with the selection of the camera (S13), and a function for adjusting the shooting direction of the external camera is performed according to the selected point. .

In relation to the shooting direction adjusting function of the external camera, an angle between the direction in which the selected camera faces the selected point and the predetermined reference direction is calculated (S14). For example, the reference direction may be a direction in which the camera captures the forward direction, and the calculated angle may be an angle rotated in a counterclockwise direction so that the camera faces a selected point from the reference direction. The angle is calculated and a correction value corresponding to the selected camera is retrieved in the spatial information system (S15).

The correction angle is calculated using the calculated angle and the correction value (S16). The correction angle may be calculated according to the calculated angle and the result of calculating the correction value. For example, as illustrated in FIGS. 4A, 4B, and 3C, the correction angle may be selected by an external camera corresponding to the selected camera. It has an angle value that allows you to actually shoot the point. A control signal is generated based on the calculated correction angle, and the driving unit for controlling the external camera generates a driving signal for controlling the PTZ of the external camera in response to the control signal (S17).

Meanwhile, in the above embodiment, the angle between the direction in which the selected camera faces the selected point and the predetermined reference direction is calculated, but the present invention is not limited thereto. For example, as described above, the angle at which the selected camera is currently photographed and the angle at which the selected camera should be rotated counterclockwise to face the selected point may be calculated. The correction angle may be calculated.

7 is a diagram illustrating a preset function according to an embodiment of the present invention, and FIG. 8 is a flowchart illustrating a method of operating a spatial information system according to another embodiment of the present invention. The operation method illustrated in FIG. 8 will be described with reference to FIG. 7 as follows.

As the preset function is selected, a camera to store preset information on the map may be selected, for example, a first camera may be selected on the map (S21). The first camera may be preset to photograph a plurality of directions. Preferably, when the first camera is disposed at the center of four distances, four directions may be preset to photograph all four distances. Accordingly, one or more directions may be selected for the first camera by the user (S22). As illustrated in FIG. 7, the first to fourth directions may be set corresponding to the first camera, and the angles for the respective cameras may be set to A, B, C, D, or the like. Preferably, when four directions are set by the user, angles A, B, C, and D for the first camera facing the four directions from a predetermined reference direction may be automatically calculated.

According to the user's selection as described above, direction information corresponding to the first camera is stored as preset information (S23). Thereafter, another camera (eg, a second camera) is selected by the user (S24), and one or more directions corresponding to the second camera are selected in a similar manner as in the first camera (S25). Direction information corresponding to the second camera is stored as preset information (S26).

In addition, interlocking information of the first camera and the second camera is stored for interlocking control of at least two cameras (S27). As in the above-described embodiment, when an event occurs, the photographing direction of the second camera may be linked to be controlled in accordance with the photographing direction of the first camera. For this purpose, any one of the first camera and the second camera Interlocking information for interlocking directions is stored. For example, when the first camera and the second camera are disposed adjacent to each other, and the first photographing direction of the first camera and the second photographing direction of the second camera are interlocked, when the event occurs, the first camera photographs the first direction. The second camera is controlled to photograph the second direction in association with the second camera.

According to the stored preset information, the user can check the video taken from the corresponding external camera by selecting the camera displayed on the map. With the selection of the camera, one or more shooting directions set therefor may be selected, and the shooting direction of the corresponding external camera is controlled according to the selection. As in the above-described embodiment, the photographing angle information stored through the preset information may be an angle on a map, and when the photographing direction of the actual external camera is controlled based on this, the above-described correction value may be used.

9 is a diagram illustrating a camera interworking function according to an embodiment of the present invention, and FIG. 10 is a flowchart illustrating a method of operating a spatial information system according to another embodiment of the present invention. The operation method illustrated in FIG. 10 will be described with reference to FIG. 9 as follows.

The first camera CAM11 is disposed adjacent to the second camera CAM21 and the third camera CAM22, respectively, and the first camera CAM11 has at least the direction in which the second camera CAM21 is disposed (for example, the first camera CAM21). The direction D21 and the direction in which the third camera CAM22 is disposed (for example, the second direction D11) may be photographed. Similarly, the second camera CAM21 may photograph at least a direction (eg, the fourth direction D23) different from the direction in which the first camera CAM11 is disposed (eg, the third direction D22). Similarly, the third camera CAM22 may photograph at least a direction (eg, the sixth direction D13) different from the direction in which the first camera CAM11 is disposed (eg, the fifth direction D12).

When an event such as a wanted vehicle discovery occurs, the spatial information system receives the event (S31). In response to receiving the event, a function for interlocking and controlling a plurality of cameras (or external cameras) is performed. For this purpose, a first camera CAM11 that is photographing a current object (eg, a wanted vehicle) is performed. Receive the information (S32).

As photographing information is received from the first camera CAM11, one or more second cameras linked to the first camera CAM11 are searched for (S33). In the case of FIG. 9, the second camera CAM21 and the third camera CAM22 may be searched as a camera linked to the first camera CAM11.

In addition, an interlocking direction between the first camera CAM11 and the one or more second cameras is retrieved. In FIG. 9, linkage information between the first camera CAM11 and the second camera CAM21 and linkage information between the first camera CAM11 and the third camera CAM22 may be retrieved. As illustrated in FIG. 9, the first direction D21 of the first camera CAM11 and the third direction D22 of the second camera CAM21 may be interlocked, and the first direction of the first camera CAM11 may also be linked. The second direction D11 and the fifth direction D12 of the third camera CAM22 may be linked to each other. According to the search result, the PTZ of the second camera may be controlled (S35), for example, as shown in FIG. 9, the second camera CAM21 is controlled to be directed toward the third direction D22, and the third camera ( The CAM22 may be cooperatively controlled to face the fifth direction D12.

Although not described in the above embodiment, the camera operation may be continuously performed with respect to other cameras. For example, the second camera CAM21 may be further linked to at least one other camera in addition to the first camera CAM11. When the photographing information of the second camera CAM21 is received by the spatial information system, the above-described search operation may be performed. Is performed. If the first direction of the fourth camera (not shown) is linked to correspond to the photographing of the third direction D22 of the second camera CAM21, the photographing direction of the fourth camera is controlled as the first direction. The action will be further performed.

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

Claims (10)

Calculating and storing correction values for each of the plurality of external cameras;
Receiving information selecting one of a plurality of cameras displayed on a map and information selecting a first point indicating a shooting direction of the camera;
Calculating a first angle of a direction in which the selected camera faces the first point based on a first predetermined direction;
Calculating a second angle using a correction value for the external camera corresponding to the selected camera and the calculated first angle; And
Outputting a camera driving signal according to the calculated second angle to control an external camera corresponding to the selected camera,
In order to unify the direction system of the plurality of cameras displayed on the map and the direction system of the external cameras, an angle between the reference direction of the external camera and the first direction is stored as the correction value. How information systems work. The method of claim 1,
And wherein the first direction corresponds to a direction of a camera on the map when the first angle corresponds to 0 degrees. The method of claim 1,
Each of the plurality of cameras displayed on the map corresponds to each of the plurality of external cameras,
At least two of the plurality of external cameras have different reference directions, and thus different correction values are calculated. Calculating and storing correction values for each of the plurality of external cameras;
Receiving information selecting one of a plurality of cameras displayed on a map and information selecting a first point indicating a shooting direction of the camera;
Calculating a first angle of a direction in which the selected camera faces the first point based on a first predetermined direction;
Calculating a second angle using a correction value for the external camera corresponding to the selected camera and the calculated first angle;
Outputting a camera driving signal according to the calculated second angle to control an external camera corresponding to the selected camera;
Selecting a first camera corresponding to the first external camera on a map;
Selecting one or more directions the first camera is facing and storing the direction information;
Selecting a second camera corresponding to the second external camera on a map;
Selecting one or more directions the second camera is facing and storing the direction information;
Storing interworking information in which one direction of the first camera and one direction of the second camera are linked; And
Controlling the first and second external cameras using at least one of the stored direction information and interworking information;
In order to unify the direction system of the plurality of cameras displayed on the map and the direction system of the external cameras, an angle between the reference direction of the external camera and the first direction is stored as the correction value. How information systems work. 5. The method of claim 4,
Receiving an event;
Receiving photographing information of the first external camera;
Searching for the second external camera linked to the first external camera among a plurality of external cameras;
Retrieving the linkage information; And
And controlling the direction of the second external camera in correspondence with the direction of the first external camera according to the linkage information. The method of claim 5,
When the first direction of the first external camera and the second direction of the second external camera are interlocked, when the event is received and the first external camera faces the first direction, the second external camera is the first direction. A method of operating a spatial information system, characterized in that it is controlled to face two directions. A map processor configured to output a map on which a plurality of cameras corresponding to the plurality of external cameras are displayed;
A video processing unit which outputs images captured by the external cameras;
Calculating a correction value for each of the plurality of external cameras, receiving information on selecting one of the plurality of cameras displayed on the map, and selecting information on a first point indicating a shooting direction of the camera, Based on the first direction of, a first angle in a direction toward which the selected camera is directed toward the first point is calculated, and the correction value for the external camera corresponding to the selected camera and the calculated first angle are used. A conversion processor configured to calculate a second angle and output a first control signal for controlling the external camera; And
A camera driver for controlling driving of the external camera in response to the first control signal,
In order to unify the direction system of the plurality of cameras displayed on the map and the direction system of the external cameras, an angle between the reference direction of the external camera and the first direction is calculated as the correction value. Information system. The method of claim 7, wherein
Set and store one or more direction information of each camera toward at least some of the plurality of cameras on the map, and store interlocking information linked to directions of at least two cameras; And a linkage processor configured to output a second control signal for controlling a direction of a second external camera linked thereto based on the direction of the camera. 9. The method of claim 8,
The first direction of the first external camera and the second direction of the second external camera are interlocked with each other, and when the event occurs, the second external camera faces the second direction corresponding to the first direction of the first external camera. To generate a second control signal,
And the camera driver controls the second external camera in response to the second control signal. delete

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