KR20120077022A - Wanrning system of security area using reflector - Google Patents

Abstract

PURPOSE: An alarm system of a security zone is provided to rotate a reflector by consecutively taking a photograph of a phase formed on the reflector through a fixed type camera in real time. CONSTITUTION: An alarm system of a security zone comprises a reflector(R), a fixed type camera(C), a PTZ(Pan/Tilt/Zoom) camera(100), a warning transmission unit(200), and a controller(300). The controller comprises an imaging region setting unit(310), a security region setting unit(320), and an emergency signal region setting unit(330). The PTZ camera comprises an image shooting unit(110), a motion detector(120), a tracking unit(130), a memory unit(140), and a tracing target variant unit(150). The warning transmission unit comprises a speaker(210) and a light(220).

Description

Alarm system in security area using reflector {WANRNING SYSTEM OF SECURITY AREA USING REFLECTOR}

The present invention can prevent access by sending warning information when an object enters a set security area while effectively monitoring and tracking a specific object in a wide surveillance range by using a reflector and a plurality of cameras. The present invention relates to an alarm system in a security area using a reflector capable of blocking the occurrence of an incident in advance.

In general, a surveillance system that monitors a specific place by means of monitoring means to enable countermeasures or follow-up when an abnormality is found is introduced in various places such as entrances, parking lots, buildings, industrial sites and residential areas of security-critical places. come. It is becoming more diverse and generalized as it proves that security is improved, access control is easy, and crime rate is falling.

In particular, with the introduction of the so-called Digital Video Recorder (DVR), a digital video storage device equipped with various surveillance functions and communication functions that can be easily checked by storing the monitored video, the surveillance camera and storage Construction of surveillance systems using means is becoming more common.

However, since most surveillance systems use fixed cameras, there are limitations in the surveillance area, which makes it difficult to determine the exact contents when an accident occurs, especially in unmanned surveillance systems. Insufficient cases are often frequent.

In order to compensate for the weakness of the fixed camera, a large number of fixed cameras may be installed or a single camera may be moved to eliminate blind spots to prevent the limitation of the surveillance area. In this case, when a camera is used to move, that is, when a rotating camera is used, a manager may operate the camera manually at a long distance to intensively monitor a suspected area or to efficiently monitor a large surveillance area, but it requires surveillance personnel. Maintenance cost is high.

As described above, in order to eliminate surveillance manpower and reduce maintenance costs, an automatic tracking function is provided to the camera. Various techniques are conventionally proposed for a camera provided with an automatic tracking function, and most of the tracking methods of the camera have a large amount of calculation, and thus, there are problems such as high cost, inferior reliability, or the use of a fixed and rotary camera in pairs.

In particular, even when a rotary camera is installed, the camera must be detected to move an object while the camera rotates along a preset path. Since the real-time shooting area of the camera is narrow, the object is easy to grasp the moving path of the camera, and the set path is set to the camera. Has a problem that it is difficult to accurately and precisely monitor the security area because both the time and the number of images contained in the image are too large.

In addition, even if the automatic tracking function is provided to the rotary camera, after detecting the moving object, the object is continuously tracked according to the movement of the object, and the image is continuously recorded. There is no way to cope before an incident occurs. In other words, there is a problem that can not prevent the occurrence of the event only as a function of evidence for post-processing when the incident occurs by the object.

Moreover, even if the rotating camera reaches the security zone to which the object is to be denied when the camera automatically tracks the object, the security zone also rotates with the rotation of the rotating camera, so it is difficult to set the area by using only a single rotating camera. have.

An object of the present invention devised to solve the above problems, by using a reflector and a plurality of cameras effectively monitors and tracks a specific object in a wide range of surveillance while sending an access to the warning information when the object enters the set security area It is to provide an alarm system in the security area using a reflector that can prevent the occurrence of incidents in advance, rather than post-processing of the object.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

In order to achieve the above object, the alarm system of the security zone using the reflector according to the present invention includes a reflector that illuminates the security zone by using light reflection, a fixed camera that continuously photographs an image formed on the reflector, It includes a PTZ (Pan / Tilt / Zoom) camera, and a control unit for rotating the PTZ camera left and right and up and down to automatically track the object when the moving object is detected in the image captured by the fixed camera.

The apparatus may further include a warning transmission unit for transmitting warning information to the object, wherein the control unit receives information and motion information of the object from the PTZ camera, and the security area and the security area of the PTZ camera. After assigning each coordinate value to a neighboring alarm zone according to a preset coordinate system, when the object enters the alarm zone, the warning transmitter is driven to transmit warning information.

The controller may further include a photographing area setting unit for assigning each coordinate value to a photographable area of the PTZ camera on the basis of a fixed position of the PTZ camera, and accessing the object from among the photographable areas of the PTZ camera. And a security area setting unit for setting a coordinate value corresponding to a security area for controlling, and an alarm area setting unit for setting a coordinate value corresponding to an alarm area which is an area adjacent to the security area among the imageable areas of the PTZ camera. It is characterized by.

The PTZ camera may further include an image photographing unit for capturing images while rotating left and right and up and down according to a control signal, and dividing the image provided by the image capturing unit in units of blocks and then before and after the image capturing unit. A motion detection unit for determining a block moving in a different direction or at a different speed relative to the image photographing unit as a motion block, calculating a coordinate value and a motion vector value of the motion block, and outputting the motion information as the motion information of the object; A tracking unit for providing position adjustment information for positioning the motion block at the center of the image captured by the image capturing unit according to the degree of movement of the motion block received from the motion detecting unit; And a memory unit for storing the captured image, wherein the control unit The left and right and up and down rotation of the image capture unit is controlled based on the position adjustment information received from the tracking unit.

The image capturing unit may further include a zoom function, and the controller may be configured to determine a position and a direction of a motion block provided by the motion detector based on a rotational speed and a zoom state of the image capturing unit at the time when the image is acquired. Converts the movement of the motion picture to the tracking unit, converts the position adjustment information provided by the tracking unit according to the current rotational speed and the zoom state of the image capturing unit, and then controls left and right and up and down rotation of the image capturing unit. It is done.

In addition, the PTZ camera, when detecting a new moving object during the tracking of the object, continuously records the coordinate value of the new object in the memory unit, and the memory when the existing object is out of the shooting area of the image capture unit And a tracking object variable part for tracking the new object based on the coordinate values recorded in the book.

The tracking object variable unit may be further configured to adjust a coordinate value of the existing object when the new object enters a range of coordinate values corresponding to the alarm area even when the existing object does not leave the photographing area of the image photographing unit. And writing continuously to the memory unit and tracking the new object.

The warning transmission unit may include a speaker for transmitting a warning sound and a light for irradiating light, and the controller may drive the speaker when the object enters a range of coordinate values corresponding to the alarm area. When the warning sound is transmitted, and the object enters the range of the coordinate value corresponding to the security area, the speaker is driven to emit a second warning sound and simultaneously drive the light.

In addition, the control unit is connected to the network to transmit and receive data, and to display the image taken by the PTZ camera to the administrator, and when the object enters into the alarm area, the warning information is sent to the administrator, the administrator is the PTZ It further comprises a remote control unit for controlling the camera and the alarm sending unit.

In the security system of the security zone using the reflector according to the present invention, the fixed camera continuously rotates the reflector by capturing an image formed on the reflector in real time, thereby greatly reducing the time and the number of images the PTZ camera contains in the security zone. Of course, accurate and detailed surveillance of the security area is easy, and accurate tracking and image of the object detected by the reflector and fixed camera can be performed by the PTZ camera.

In addition, after assigning each coordinate value along the coordinate system set through the control unit to the imageable area of the PTZ camera, the alarm area and the security area are set among the coordinate values, and when the object enters into the alarm area, the alarm information is sent out. The occurrence can be prevented in advance.

In addition, by dividing the image taken by the automatic tracking method of the PTZ camera in units of blocks, by comparing the previous image and the subsequent image to calculate the coordinate value and the movement vector of the motion block by controlling the camera so that the object is constantly in the center of the image In addition, it can monitor a large area and send out warning information according to the coordinate value of the object approaching the security area, thereby achieving a reliable monitoring effect at low cost.

In addition, when a new object is detected while tracking an existing object, the reliability of tracking of a plurality of objects may be increased through the tracking object variable unit.

Moreover, the remote control unit can share information visually and visually about what is happening to an administrator far from the PTZ camera, and the administrator can operate the PTZ camera remotely to obtain more detailed and useful images. .

1 is a block diagram showing the configuration of an embodiment of the alarm system of the security zone using the reflector according to the present invention,
2 is a conceptual diagram illustrating a state in which an alarm system of a security zone using a reflector according to the present invention is installed in the security zone,
3 is an exemplary view illustrating a state in which coordinate values are set in an image photographed by each region through an alarm system of a security zone using a reflector according to the present invention;
4 is a conceptual diagram illustrating a tracking method of an alarm system of a security zone using a reflector according to the present invention;
5 is an exemplary view illustrating a tracking state of an object through an alarm system of a security area using a reflector according to the present invention;
FIG. 6 is a conceptual diagram illustrating a case in which an alarm system of a security zone using a reflector according to the present invention detects a new object while tracking an existing object.
FIG. 7 is an exemplary diagram illustrating a case of tracking a new object in the embodiment of FIG. 6.
8 is an exemplary view illustrating an enlarged image of an object in an alarm system of a security zone using a reflector according to the present invention;
9 is a conceptual diagram illustrating a case in which an object enters an alarm area in an alarm system of a security area using a reflector according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the alarm system of the security zone using the reflector according to the present invention.

Alarm system of the security zone using the reflector according to the present invention, the reflector (R), fixed camera (C), PTZ camera 100, the warning transmitter 200 and the control unit 300 as shown in FIG. The control unit 300 includes a shooting area setting unit 310, a security area setting unit 320, and an alarm area setting unit 330, and the PTZ camera 100 includes an image taking unit 110. ), A motion detector 120, a tracking unit 130, a memory unit 140, and a tracking target variable unit 150. In addition, the warning transmission unit 200 may include a speaker 210 and the light 220.

The reflector R is fixed or provides an image to the stationary camera C while panning and tilting, and the stationary camera C continuously forms an image formed on the reflector R. Shoot. The reflector R is an object that receives and reflects light, and reflects the object using a reflection of light like a mirror. That is, the fixed camera C continuously photographs the reflector R, and the fixed camera C may capture the scene reflected on the reflector R as an image of the security zone. The reflector R may have a smooth reflective surface, may have a multi-sided surface, or may be a spherical mirror having a reflective surface.

The controller 300 rotates the PTZ camera 100 left and right and up and down to automatically track the object 10 when the moving object 10 is detected in the image captured by the fixed camera C. FIG. When the moving object 10 is detected by directly rotating the PTZ camera 100, the time and the number of images contained in the PTZ camera 100 in the security zone are greatly increased. Therefore, the moving object 10 is detected through the reflector R and the fixed camera C, and the automatic tracking of the object 10 uses the PTZ camera 100. The image captured by the fixed camera C through the reflector R is easy to detect the moving object 10, but it is difficult to implement a close tracking and zoom-in function of the object 10.

In this case, when the PTZ camera 100 detects the moving object 10 in the image captured in real time while panning and panning, the PTZ camera 100 automatically tracks the object 10 to shoot continuously. As a configuration for implementing the automatic tracking function of the PTZ camera 100, the PTZ camera 100 is an image capture unit 110, a motion detector 120, a tracking unit 130 and a memory as shown in FIG. Including the unit 140, and as shown in Figures 4 and 5 to detect the object 10 performs a tracking function.

The image capturing unit 110 is a photographing apparatus such as CCTV having a general pan tilting function. The image capturing unit 110 captures an image while rotating left and right and up and down according to a control signal. As shown in FIG. 2, the image capturing unit 110 is installed at a position where it is easy to perform monitoring over a wide range of areas designated as security zones, and receives position adjustment information of the tracking unit 130 to be described later or controls ( According to the control signal of 300, the image is taken while rotating left and right (pan tilting). The image capturing unit 110 is provided with a built-in or externally connected motion detector 120, a tracking unit 130, and a memory unit 140.

As shown in FIG. 4, the motion detector 120 divides the image provided by the image capturing unit 110 into blocks, and then compares the image of the image capturing unit 110 with the image before or after the image capturing unit 110. The block moving in a different direction or at a different speed relative to the unit 110 is determined as the motion block 20, and the coordinate value and the motion vector value of the motion block 20 are calculated to move the object 10. Output as information. Here, the coordinate value of the movement block 20 refers to a coordinate value given according to a preset coordinate system in the controller 300 to be described later. The block determined as the motion block 20 by the motion detector 120 determines that the block in motion is the motion block 20 when the image capturing unit 110 is stopped, and the image capturing unit ( When the 110 rotates, the motion block 20 determines a block moving in a different direction or at a different speed than the motion of the image capturing unit 110.

The tracking unit 130 is located at the center of the image captured by the image capturing unit 110 according to the degree of movement of the motion block 20 received from the motion detecting unit 120. To provide position adjustment information. That is, as shown in FIG. 5, based on the position adjustment information provided through the tracking unit 130, the image photographing unit 110 rotates left and right or up and down to move the moving block 20, which is the object 10, to the center of the image. The control signal is moved to position.

The memory unit 140 is a general recording medium. The memory unit 140 stores an image photographed by the image capturing unit 110, transmits the image captured by the image capturing unit 110, or transmits the image stored in the memory unit 140 through the control unit 300. It may be transmitted to the remote control unit 400 to be described later.

Looking at the automatic tracking function of the object through the PTZ camera 100 configured as described above in more detail with reference to Figures 4 and 5, Figure 4a is a moving object 10 in the still image of the image pickup unit 110 As an example of the case, a motion vector is obtained by detecting that a predetermined block has moved to a different coordinate value in a previous or subsequent image by detecting similar blocks. In this case, the moving speed of the corresponding block may be obtained through the acquisition speed of the image, that is, the frames per second of the image capturing unit 110.

In addition, FIG. 4B illustrates an example in which the moving object 10 is moved while the image capturing unit 110 rotates, and the background is always opposite to the moving direction of the image capturing unit 110. The background always has the same level of vector values as it moves by the distance it moves. However, since the block moving while having a vector value different from the motion vector value of the background corresponds to the object 10 in which the motion exists, it can be determined as the motion block 20. That is, even when the image capturing unit 110 is stopped or rotated, it is possible to obtain the detection of the moving object 10 and its movement information through a simple calculation.

Based on the information obtained in the above manner, the moving object 10 can always be tracked by keeping the moving object 10 always in the center of the image. For example, as shown in FIG. 5, it can be seen that the object 10 composed of a plurality of blocks has moved to a different coordinate value in the next image, and the arrow shown is the movement vector value of the object 10. At this time, the person who is the target object 10, which is the main purpose of tracking, can know that it corresponds to a plurality of blocks, and the coordinate values and movements of the plurality of motion blocks 20 output through the motion detection unit 120. Based on the vector information, the size of the tracking object 10 can be determined through the number of adjacent blocks moving in the same direction. Accordingly, when the tracking target 10 is limited to people, unnecessary noise may be blocked by limiting the number of such blocks. For example, when the number of blocks is 10 or more, noise generated by an animal or a natural environment (indirect image change caused by wind, snow, rain, hail, etc.), which is less than that, can be blocked.

In addition, since the larger the size of the block at the time of tracking the target object 10 in the above-described manner, the easier the operation is, the larger the size of the block set in the motion detector 120 is, and the motion is detected. In this case, a method of identifying noise by reducing the size of the block may be applied, which greatly reduces the amount of computation required for motion detection.

When the moving object 10 is detected in the image captured by the PTZ camera 100 configured as described above, the object 10 may be automatically tracked, but the event 10 may be detected in an area designated as a security area. It is difficult to prevent the occurrence of the incident even though the follow-up will be based on the stored image. That is, to solve this problem is to operate the warning sending unit 200 and the control unit 300 separately.

1 and 9, the warning transmitter 200 transmits warning information to the object 10, and the controller 300 controls the information and movement of the object 10 from the PTZ camera 100. After receiving the information and assigning each coordinate value to the security area 321 and the alarm area 331 adjacent to the security area 321 of the shooting area 311 of the PTZ camera 100 according to a preset coordinate system When the object 10 enters into the warning area 331, the warning sending unit 200 is driven to send warning information. The controller 300 sets all the images photographed through the image capturing unit 110 of the PTZ camera 100 as the capturing region 311 in association with the automatic tracking function of the PTZ camera 100. The security zone 321 is configured to deny access to another person in the photographing area 311, and the predetermined area adjacent to the security area 321 is selected as the alarm area 331. . At this time, when the object 10 tracked through the PTZ camera 100 enters into the alarm region 331, the warning transmission unit 200 is driven to transmit warning information.

In relation to the automatic tracking function of the PTZ camera 100, when the moving object 10 is tracked along with the rotation of the PTZ camera 100, the set security area 321 is also moved to the image while moving in accordance with the rotational speed of the PTZ camera 100. The shape of the security area 321 to be photographed is changed. Therefore, since the security zone 321 or the alarm zone 331 cannot simply be designated as a specific shape, the control unit 300 controls the PTZ camera in order to be linked to the automatic tracking function of the PTZ camera 100 for setting the zone. A coordinate value is input according to the coordinate system set to correspond to the imageable area of 100). The coordinate system set here may be a Cartesian coordinate system or a polar coordinate system having a position where the PTZ camera 100 is installed as a reference point or an origin, and a two-dimensional coordinate system may be used to minimize the amount of calculation. Each coordinate value will be determined in the area to be set according to the set coordinate system.

That is, as shown in FIGS. 1 and 3, the controller 300 coordinates each of the coordinates in the imageable area (shooting area) 311 of the PTZ camera 100 based on the position where the PTZ camera 100 is fixed. Security area for setting a coordinate value corresponding to the shooting area setting unit 310 to give a value and the security area 321 for controlling the access of the object 10 of the imageable area of the PTZ camera 100 And a setting unit 320 and an alarm area setting unit 330 for setting a coordinate value corresponding to the alarm area 331 which is an area adjacent to the security area 321 among the recordable areas of the PTZ camera 100. It is done by

Therefore, when the coordinate value of the tracking object 10 enters the coordinate value of the set alarm area 331, the control unit 300 transmits warning information by driving the warning sending unit 200, thereby approaching the tracking object 10. Can be prevented in advance. Here, the warning transmitter 200 may include a speaker 210 for transmitting a warning sound and a light 220 for irradiating light. The speaker 210 may be a preset voice or a siren sound. In addition, the light 220 may be a culite that is a siren light, or may be a support light that focuses and illuminates the object 10. The warning sending unit 200 is sufficient if it can send the warning information to the object 10, it may be any configuration or format. However, the speaker 210 may set a first warning sound when the object 10 enters into the alarm area 331 and a second warning sound when entering the security area 321. In this case, when the object 10 enters a range of coordinate values corresponding to the alarm area 331, the controller 300 drives the speaker 210 to transmit a first warning sound, and the object 10 transmits the warning sound. When entering the range of the coordinate value corresponding to the security area 321, the speaker 210 may be driven to transmit a second warning sound and simultaneously drive the light 220.

On the other hand, while tracking the existing object 10 in the automatic tracking function of the PTZ camera 100, when detecting the new object 11 as shown in Figures 6 and 7 It is necessary to decide whether to keep track or to track the new object 11. This is determined by the tracking object variable unit 150 as shown in FIG.

The tracking object variable unit 150 continuously records the coordinate values of the new object 11 in the memory unit 140 when detecting the new moving object 11 during the tracking of the object 10. When the object 10 is out of the photographing area 311 of the image capturing unit 110, the new object 11 is tracked based on the coordinate values recorded in the memory unit 140. In the function of the basic tracking object variable unit 150, even if the existing object 10 does not leave the photographing area 311 of the image capturing unit 110, the new object 11 is the alarm area ( When entering a range of coordinate values corresponding to 331, the coordinate values of the existing object 10 are continuously recorded in the memory unit 140, and the new object 11 is tracked. Continuously recording the coordinate values of the respective objects 10 and 11 in the memory unit 140, whether the existing object 10 or the new object 11 is a moving path of the coordinate values recorded in the memory unit 140. It is to infer the tracking to the object in the shooting area 311 after tracking the object outside the shooting area 311 by analogy.

The image capturing unit 110 of the PTZ camera 100 may further include a zoom function as shown in FIG. 8, as well as pan tilting, that is, a tracking function through left, right, and up and down rotations. This is because it is possible to more easily grasp the impression of the target object 10 to cause an event through the zoom function of the image capturing unit 110 and to provide certainty of information. In this case, the controller 300 may refer to the position and direction of the motion block 20 provided by the motion detector 120 based on the rotational speed and the zoom state of the image capturing unit 110 at the time when the image is acquired. After converting the motion in the state to the tracking unit 130, the position adjustment information provided by the tracking unit 130 is converted according to the current rotational speed and the zoom state of the image photographing unit 110 and the The left and right and up and down rotation of the image capturing unit 110 is controlled. The zooming function of the image capturing unit 110 is the new object 11 while continuously tracking the existing object 10, especially when the moving object 10 is stopped or when a new object 11 is detected. ) To obtain a zoom image of the existing object 10 while tracking a new object 11 instead of the existing object 10.

As shown in FIG. 1, the alarm system of the security zone according to the present invention is connected to the control unit 300 and the network 410 to transmit and receive data, and to display an image captured by the PTZ camera 100 to an administrator. And a remote control unit for transmitting the warning information to the manager when the object 10 enters the alarm area 331, and the manager controlling the PTZ camera 100 and the warning transmitter 200. 400 may further include. The network 410 may be a wired network or a wireless network technology, and an appropriate network technology may be used in consideration of the distance or type of the controller 300 and the remote control unit 400. For example, the network 410 may be a local area network (LAN), a wireless LAN (WLAN), or an internet network using an Internet protocol (IP).

The remote control unit 400 may be a central control room where each device capable of performing each function may be provided in the room and the administrator may reside therein, and the portable operation may be performed separately by the administrator while carrying out each function. It can be a phone or a cell phone. In addition, the manager may be a safety officer or a security officer, as well as a police officer may grasp the site situation when the incident occurs in accordance with the approach of the security area of the object 10 may be dispatched quickly.

The embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical idea of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention, as will be apparent to those skilled in the art.

R: reflector
C: fixed camera
10, 11: object
20: motion block
100: PTZ camera 110: video recording unit
120: motion detection unit 130: tracking unit
140: memory unit 150: tracking target variable unit
200: warning transmitter
210: speaker 220: light
300:
310: shooting area setting unit 311: shooting area
320: security zone setting unit 321: security zone
330: alarm area setting unit 331: alarm area
400: remote control unit 410: network

Claims (9)

A reflector that illuminates the security area using light reflection,
A fixed camera which continuously photographs an image formed on the reflector;
PTZ (Pan / Tilt / Zoom) cameras,
And a control unit configured to rotate the PTZ camera left and right and up and down to automatically track the object when the moving object is detected in the image photographed by the fixed camera.
The method of claim 1,
Further comprising a warning sending unit for sending warning information to the object,
The control unit,
Receiving information and motion information of the object from the PTZ camera, and assigning each coordinate value to the security area and the alarm area adjacent to the security area of the shooting area of the PTZ camera according to a preset coordinate system, the object is the alarm The warning system of the security zone using a reflector, characterized in that for driving into the area to drive the warning transmission unit to send warning information.
The method of claim 2,
The control unit,
A shooting area setting unit for assigning each coordinate value to a recordable area of the PTZ camera based on a fixed position of the PTZ camera;
A security area setting unit for setting a coordinate value corresponding to a security area for controlling access of the object among the recordable areas of the PTZ camera;
And an alarm area setting unit for setting a coordinate value corresponding to an alarm area which is an area adjacent to the security area among the recordable areas of the PTZ camera.
The method of claim 3,
The PTZ camera,
An image photographing unit which photographs an image while rotating left and right and up and down according to a control signal;
After dividing the image provided by the image taking unit by each block unit and comparing the image before or after the image taking unit to determine a block moving in a different direction or at a different speed relative to the image taking unit as a motion block, A motion detector which calculates coordinate values and motion vector values of the motion block and outputs the motion information of the object;
A tracking unit for providing position adjustment information for positioning the motion block at the center of the image photographed by the image photographing unit according to the movement degree of the motion block received from the motion detecting unit;
A memory unit which stores an image photographed by the image photographing unit,
The control unit,
Alarm system of the security zone using the reflector, characterized in that for controlling the left and right and up and down rotation of the image capture unit based on the position adjustment information received from the tracking unit.
The method of claim 4, wherein
The image photographing unit further includes a zoom function,
The control unit,
The position and direction of the motion block provided by the motion detector is converted into a motion in a reference state based on the rotational speed and the zoom state of the image capturing unit at the time when the image is acquired, and provided to the tracking unit, and provided by the tracking unit. And converting the position adjustment information according to the current rotational speed and the zoom state of the image capturing unit and controlling the left and right rotation of the image capturing unit.
The method of claim 4, wherein
The PTZ camera,
When detecting a new moving object during tracking of the object, the coordinate values of the new object are continuously recorded in the memory unit, and when the existing object is out of the photographing area of the image capturing unit, the coordinate values recorded in the memory unit are recorded. And a tracking target variable unit for tracking the new target on the basis of the security zone.
The method of claim 6,
The tracking target variable unit,
Even when the existing object does not leave the photographing area of the image capturing unit, when the new object enters a range of coordinate values corresponding to the alarm area, the coordinate values of the existing object are continuously recorded in the memory unit. Security system of a security zone using a reflector, characterized in that for tracking the new object.
The method of claim 2,
The warning sending unit,
Speaker to send out a beep,
I include a light irradiating light,
The control unit,
When the object enters the range of the coordinate value corresponding to the alarm area, the speaker is driven to send a first warning sound, and when the object enters the range of the coordinate value corresponding to the security area, the speaker is driven. A warning system for a security area using a reflector, characterized in that to drive the light at the same time as the car warning sound.
The method of claim 2,
It is connected to the network via the control unit and transmits and receives data, and displays the image taken by the PTZ camera to the administrator, and when the object enters into the alarm zone, and sends warning information to the administrator, the administrator is the PTZ camera and Security system of the security zone using the reflector, characterized in that it further comprises a remote control unit for controlling the warning transmission unit.

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