KR20050024993A - Camera system for surveilance and method for controlling the same - Google Patents

Abstract

PURPOSE: An unattended monitoring system and a method for controlling the same are provided to photograph a monitoring spot correctly by preliminarily setting a plurality of monitoring spots that require special monitoring, grasping an absolute position of a camera and then controlling drive of the camera. CONSTITUTION: A camera body is fixed at the ceiling in a monitoring area. A server computer and a client computer receive a picture photographed by a camera(40) installed in the camera body. The camera includes a fan motor for driving a rotation structure, a tilting motor installed in the rotation structure so as to drive the camera and a position sensing part for sensing absolute positions of the fan motor and the tilting motor. The server computer includes a database for storing absolute position information of a plurality of monitoring spots that require monitoring and a controller for controlling the fan motor and the tilting motor so that a camera head can reach the monitoring spots according to a sensing result from the position sensing part.

Description

Unmanned surveillance system and control method {CAMERA SYSTEM FOR SURVEILANCE AND METHOD FOR CONTROLLING THE SAME}

The present invention relates to an unmanned surveillance system and a control method thereof, and more particularly, to set a plurality of surveillance points to be photographed in advance, determine the absolute position of the camera, and then determine whether the camera is directed to the surveillance point. In addition, the present invention relates to an unmanned surveillance system and a control method of controlling an operation of a camera according to a determination result so that the camera can accurately capture a monitoring point, thereby accurately and efficiently monitoring the monitoring point.

In the past, it has been installed in unmanned surveillance systems in buildings and facilities that attract many social and international events, facilities such as banks that store important objects, and important buildings and facilities that are important for terrorism. It is installed for security and crime prevention in places where there is a risk of theft or terrorism in various places such as stores, schools / schools, small businesses, hospitals and parking lots.

The most common and common systems employed in such unmanned surveillance systems are CCTV cameras, but recently, USB cameras and web cameras have been used in place of CCTV cameras.

In general, the camera used in the unmanned surveillance system, referring to Figures 3 and 4 of the present invention, the camera body fixed to the wall, the rotating body rotating around the axis of rotation perpendicular to the wall, and installed in the rotating body And a camera head that rotates within a range of angles about an axis of rotation parallel to the wall.

The camera body and the rotating body are provided with a pan motor and a tilting motor for driving the rotating body and the camera head, and a position sensing unit for detecting the position of the camera head according to the rotation of the pan motor and the tilting motor.

Since the camera of such unmanned surveillance system is usually installed in the corner space of the detection zone, the fan motor and the tilting motor can be rotated within a certain angle range, and if the surveillance zone is large, a plurality of cameras can be installed to monitor the surveillance zone. I will shoot.

When shooting the surveillance zone, the camera head is rotated with a certain direction to shoot the surveillance zone continuously, the position detection unit determines the position of the camera head according to the degree of rotation of the pan motor and the tilting motor. That is, the position detecting unit estimates that the camera head has reached an arbitrary position depending on how many degrees the fan motor and the tilting motor have rotated, or how much time has passed since the start of operation. Therefore, in the related art, only the relative position of the camera head can be determined through the position detecting unit, and the absolute position, which is the actual position of the camera head, cannot be determined.

On the other hand, the conventional camera photographs the surveillance zone while rotating at the same speed and time in all the regions within the designated surveillance zone. In general, however, there are a number of monitoring spots that must be monitored with particular interest in the surveillance zones where cameras are installed, such as safes, filing cabinets and doors. The probability is great. However, when shooting surveillance zones continuously, as in conventional cameras, the camera's shooting time is the same at all surveillance points within the surveillance zone. You can't perform one level of advanced security and security. Therefore, there is a problem that the security and security of the monitoring point is relatively neglected.

On the other hand, in the conventional unmanned surveillance system, the surveillance zone is recorded with a CCTV camera to record the screen, or the worker in the situation room, such as most of the remote monitoring method. In other words, the conventional unmanned surveillance system can detect whether the intruder is generated only through the naked eye of the worker, so if the worker leaves the room or the intrusion occurs at the moment of being alert, no immediate action is possible. Accordingly, most camera recording systems are often dealt with in terms of post cause identification. That is, in most cases, the recorded image is reproduced in order to detect and extract an intruder after an accident occurs.

As such, the most common and common camera recording systems employed by conventional security and security technologies provide intruders with difficulty in intrusion, but do not perform fundamental intrusion prevention, and do not track intrusions as they occur. Even if the risk action is taken, there is a drawback that it is not possible to take immediate action.

On the other hand, in recent years, in order to monitor the monitoring area in real time even in the remote area, a system for transmitting the image taken by the camera installed in the monitoring area to the remote site via the network to monitor the image. However, even in the case of an emergency in the monitoring area, this method only transmits the video information of the monitoring area to the customer and the central control center. Therefore, there is still a problem that the administrator cannot respond to the emergency quickly. do. In addition, when the surveillance zone where the emergency situation is dark enough to not properly secure the image information, it is necessary to keep the lighting on or secure the image information in the dark state, which also makes it difficult to waste energy or to accurately analyze the situation. .

Accordingly, an object of the present invention is to set up a plurality of monitoring points that require special monitoring in advance, and to control the driving of the camera by grasping the absolute position of the camera, thereby enabling an unattended monitoring system and control thereof. To provide a way.

It is another object of the present invention to provide an unmanned monitoring system and a control method thereof, by detecting an event occurring in a monitoring area in real time and responding to the event in real time to more effectively and quickly resolve the event at a remote location.

The object is, according to the present invention, a camera body fixed to the wall surface in the detection zone, a rotating body rotatably coupled to the camera body to rotate about a rotation axis perpendicular to the wall surface, and on one side of the rotating body A camera having a camera head installed to rotate about a rotation axis parallel to the wall surface; In the unmanned surveillance system including a server computer for receiving the image taken by the camera, the camera is installed in the camera body and a fan motor for driving the rotating body, and installed in the rotating body and the camera A tilting motor for driving, and a position sensing unit for sensing an absolute position of the fan motor and the tilting motor; The server computer may include a memory in which absolute position information of a plurality of monitoring points requiring monitoring is stored, and the fan motor and tilting so that the camera head reaches the monitoring points according to a detection result from the position detecting unit. It is achieved by an unmanned monitoring system comprising a controller for controlling the motor.

Here, the position detecting unit, it is preferable that the potentiometer for sensing the voltage for the absolute position of the fan motor and the tilting motor.

An event detection group detecting that an event such as a fire or an intrusion has occurred at the monitoring point; By including an event response group that can resolve the event, such as sprinklers, lights, speakers, doors, windows of the monitoring point, it is possible to resolve the event at a remote location.

The event detection group includes a human body sensor for detecting an intruder entering the surveillance zone; A fire detection sensor for detecting a fire by using heat or gas detection; A door opening / closing sensor or a window opening / closing sensor for detecting whether the door or window of the monitoring zone is opened or closed; At least one of the light detection sensors for detecting whether the illumination point of the monitoring point photographed by the camera may be used.

The controller further comprises a communication module capable of communicating with the wired and wireless terminal of the client; Preferably, the controller contacts the client through the communication module when an event occurs.

On the other hand, the object is, according to another field of the present invention, a camera body fixed to the wall surface in the surveillance zone, and a rotatable body rotatably coupled to the camera body to rotate around the axis of rotation perpendicular to the wall, and A camera installed at one side of the rotating body and having a camera head rotating about a rotation axis parallel to the wall surface; A control method of an unmanned surveillance system including a server computer receiving an image captured by the camera, the method comprising: designating a plurality of surveillance points requiring special surveillance in the surveillance zone to store absolute position information of each surveillance point. A monitoring point designating step; An absolute position sensing step of sensing an absolute position of an area photographed by the camera head when the camera head is driven; A position determining step of determining whether the camera head is photographing the monitoring point by comparing an absolute position of the camera head with an absolute position with respect to the predetermined monitoring point; And a position correction step of moving the camera head to the monitoring point by operating a motor for driving the camera head when the absolute position of the camera head and the absolute position with respect to the predetermined monitoring point are above a predetermined error range. It can also be achieved by a control method of an unmanned surveillance system characterized in that.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

This unmanned surveillance system sets up a number of surveillance points that require special surveillance in the surveillance area, and controls the camera's motor so that the camera head is accurately positioned at the surveillance points, so that accurate monitoring of the surveillance points is achieved. And to improve the security effect. In addition, when an event such as an invasion or fire from the outside occurs, an alarm device, a fire extinguisher device, etc. installed in the monitoring area can be operated by remote control, so that an event such as an intrusion or fire can be eliminated remotely. .

As shown in FIG. 1, the unmanned surveillance system includes a plurality of cameras 40 installed in the surveillance zone and photographing the surveillance zone, and connected to each camera 40 to capture images taken from each camera 40. It has a server computer 10 for storing and displaying, and a client computer 13 that is installed at a remote place so as to communicate with the server computer 10 and can display an image being taken or taken by each camera 40. Here, the camera 40 is connected to the event detection group 50 installed in the monitoring zone and detecting an event such as an intrusion or fire in the monitoring zone, and an event response group 60 installed in the monitoring zone to solve the event. The I / O module 70 is installed between the event detection group 50 and the event response group 60 and the camera 40 to provide information received from the event detection group 50 to the camera 40. Then, the command transmitted through the camera 40 is provided to the event response group 60.

Here, a server program and a client program are installed in the server computer 10 and the client computer 13, respectively, so that the server program can control and monitor the camera from a remote client computer 13 connected through a network. The service for the client allows the client computer 13 to access the server computer 10 remotely.

When the server program is installed in the server computer 10, a display window for the server as shown in FIG. 2 is displayed. In the server display window, a display unit 30 for displaying a screen shot by a camera is formed in a central region thereof, and buttons for selecting various functions are provided at the upper and lower portions of the display unit 30, respectively.

First, function buttons such as a sensing mode button 21, a patrol mode button 22, a recording mode button 23, a sensor mode button 24, and the like are formed at an upper portion of the window. The detection mode button 21 is a button for detecting a movement of a monitoring point and selecting a function of informing the client by using sound, recording, recording, alarm, and mail, and the patrol mode button 22 is an order previously designated by the client. According to the operation of the camera to shoot the monitoring point sequentially, the recording mode button 23 is a button to select when you want to record the current image, and finally the sensor mode button 24 is detected by the event detection group According to the result, the preset event response group 60 is selected to operate. Here, the monitoring point refers to an area requiring special monitoring, such as a safe, a show window, a door, a window, and the like, and the monitoring point may be designated by the client in advance, and according to the client's designation, information about the monitoring point, for example, For example, the name of the monitoring point, whether the lighting is turned on during shooting, the absolute position of the monitoring point, and the like are stored in a database to be described later.

A situation bar 25 is formed at the bottom of the function button, and the situation bar 25 has a detection mode icon in which color is darkened or lights up when the detection mode, patrol mode, recording mode, and sensor mode are operated. In addition to the mode icon, the recording mode icon, and the sensor mode icon, a connection icon indicating whether the client computer 13 is connected to the server computer 10 and a warning icon indicating that motion is detected when the detection mode is set are respectively formed. .

In the lower part of the display unit 30, a server on button 31 for operating the server program to display the image being captured on the display unit and transmitting the captured image to the remote client computer 13, a monitoring position and a patrol. Set the monitoring setting button 32 for setting the pattern and the operation of the event detection group, the motion button 33 for setting the function of the camera and the operation of the event response group, and set the monitoring point, image quality, detection sensitivity, etc. In addition to the setup button 35 for zooming in and the zoom button 2 for zooming in and out of an image, a camera selection open menu 29 for selecting a camera when a plurality of cameras are installed is formed.

The server computer 10 in which the server program is installed is connected to the I / O module 70 through the camera 40 to provide information about the operation state of the camera 40 and the events detected from the event detection group 50. It is provided, and controls the operation of the camera 40 and the event response group 60 in accordance with the provided information. To this end, the server computer 10 includes a database 11 for storing various information in the computer, and a control group for performing appropriate control in response to information provided from the camera 40 and the event detection group 50 ( 15) is provided.

The control group 15 includes a linear interpolation unit 19 which calculates a function passing through two positions as a straight line equation so that the camera 40 can move along a straight line connecting the two positions, and the movement in the surveillance zone. When detected, the motion tracking unit 17 for rotating the camera head 45 according to the movement, the communication module 16 for connecting the wired / wireless terminal of the client who requested security and crime prevention, and the image provided from the camera 40 In order to provide information to the client through the communication module 16 according to the information and event detection from the event detection group 50 and to perform appropriate control in response to the information provided from the camera 40 and the event detection group 50. And a controller 18.

Here, the communication module 16 supports a PPP (point-to-point protocol) protocol when a dial-up connection is made via a public line or an Integrated Service Digital Network (ISDN) line, and a PHS (Personal Handyphone System) If you are using PIAFS (PHS Internet Access Forum Standard), PIAFS I / F and its driver are supported.If you are connecting to a local area network (LAN), Ethernet (I / F) and its driver Support. In addition, the above-described Transmission Control Protocol / Internet Protocol (TCP / IP), User Datagram Protocol (UDP), IP, FTP (File Transfer Protocol) or RS-162C I / F can be supported.

On the other hand, the camera 40 for the shooting of the surveillance zone may be composed of various types of cameras 40, such as a CCTV camera, a USB camera, a web camera connected to the network. General CCTV cameras or USB cameras are installed in the same building or the same area because the length of the line is limited, and web cameras transmit video over the Internet, so there is no limitation of the installation distance. The camera 40 may be formed in a CCD or CMOS type, and the image captured by the camera 40 may be stored and transmitted in one of USB, NTSC, and PAL methods according to the type of the camera 40.

4 and 5, the camera body 41, which is fixed to the wall surface, and a rotating body coupled to the camera body 41 so as to be rotatable about a rotation axis perpendicular to the wall surface And a camera head 45 provided on the rotating body 43 and rotating within a predetermined range with respect to a rotation axis parallel to the wall surface. In addition, a fan motor 42 for driving the rotating body 43 is installed in the camera body 41, and a tilting motor 44 for driving the camera head 45 is installed in the rotating body 43. In addition, the position detection unit 47 for detecting the absolute position of the fan motor 42 and the tilting motor 44 is mounted.

One or more cameras 40 are installed in the detection zone, and the fan motor 42 is designed to be rotatable within a rotation angle range of 300 degrees to 320 degrees, and the tilting motor 44 is in a range of 70 degrees to 120 degrees. It is designed to be rotatable within.

Here, the fan motor 42 and the tilting motor 44 use various types of DC motors, and the fan motor 42 and the tilting motor 44 are provided with acceleration and deceleration for increasing and decreasing the speed of the motor. The speed may be adjusted by accelerating or decelerating the fan motor 42 and the tilting motor 44. In addition, by using a step motor or an inverter or the like as the fan motor 42 and the tilting motor 44, the speed may be adjusted in multiple stages or continuously.

On the other hand, the position detecting unit 47 for detecting the angle of the absolute position of the fan motor 42 and the tilting motor 44, a potentiometer 47, which is an analog absolute position measuring sensor as a kind of variable resistor. The potentiometer 47 stores the angle between the fan motor 42 and the tilting motor 44 as the magnitude of the voltage. The voltage sensed from the potentiometer 47 is converted into an angle between the fan motor 42 and the tilting motor 44 and provided to the controller 18. The controller 18 is provided at the monitoring point stored in the memory 22. By comparing the angles of the pan motor 42 and the tilting motor 44 with the angles of the pan motor 42 and the tilting motor 44 at the position where the camera 40 is currently stopped, the camera head 45 In addition to determining which monitoring point is directed, the angle of the fan motor 42 and the tilting motor 44 also shows how accurately the camera head 45 is directed to the monitoring point.

The camera head 45 sequentially monitors the monitoring points according to the patrol order of the monitoring points set by the client using the patrol mode button. At this time, according to the client's selection, the camera heads 45 for a predetermined time at each monitoring point. You can take a picture while staying, or you can take a picture several times for a specific monitoring point by increasing the number of monitoring times compared to other areas. In the surveillance zone except for the surveillance point, the camera 40 may be continuously photographed while moving as in the conventional art.

On the other hand, the event detection group 50 installed in the detection zone, as shown in Figure 6, the human body detection sensor 51 for determining whether intrusion, the fire detection sensor 52 for detecting a fire, the door and the window Door opening and closing detection sensor 53 and window opening and closing detection sensor 54 for detecting the opening and closing of the light, and a variety of forms for detecting various events that may occur in the detection zone, such as a light detection sensor 55 for detecting the on and off of the lights. It includes a sensor.

The human body detecting sensor 51 may be provided as an infrared sensor 51a for detecting infrared rays formed by the body temperature of the human body, and detects an RF frequency signal generated from a pass distributed to a person who is permitted to enter. It may be provided by the RF detection sensor 51b. The infrared sensor 51a may be mainly used at night or at a specific control time during which the entrance and exit of the monitoring area is controlled, and when the human body is detected without notification of access, it may be determined that an outsider invasion has occurred. In contrast, when the RF sensor 51b is used, it may be used regardless of day and night, and when no RF frequency signal is generated from the human body, that is, a person without a pass may be determined as a chip particle. In addition to the infrared sensor 51a and the RF sensor 51b, various types of sensors capable of detecting an intrusion may be used.

On the other hand, the fire detection sensor 52 may be provided with any one of a heat detection sensor 52a for detecting heat when a fire occurs, and a gas detection sensor 52b for detecting a gas generated by the fire. In addition, the door opening and closing detection sensor 53 and the window opening and closing detection sensor 54 are formed on the door and the door frame, the window and the window frame, respectively, and are formed of a magnetic sensor that detects mutual contact and separation. To judge.

The event response group 60, which is operated by a command from the server computer 10 to resolve the event detected by the event detection group 50, as shown in FIG. Speaker 61 for outputting a real time warning sound or warning message, sprinkler 64 for the injection of fire water, duct fan 65 for the discharge of smoke, and a light switch for turning on the light ( 66) and the like. This event correspondence group 60, upon the occurrence of each event, works alone or in conjunction with another device to resolve the event.

For example, when the human body is detected through the human body sensor 51 and the unlocking of the door is detected through the door open / close detection sensor 53, the controller 18 determines that an intruder has occurred through the door. Accordingly, the controller 18 generates a control signal to output a warning sound or a warning message through the speaker 61. As another example, if the surveillance zone is originally dark or night, the controller 18 may provide information about the surveillance point, which is the absolute position of the camera 40 detected by the potentiometer 47, and the surveillance point from the memory 22. Withdraw information about the system to determine if the lighting should be turned on at the monitoring point. As a result of the determination, when the turn-on of the lighting is required at the monitoring point, the controller 18 turns on the lighting switch 66 so that the lighting is turned on, so that the shooting through the camera 40 is facilitated.

The client computer 13 that can be connected to the server computer 10 refers to most communication means that can be connected through a network such as a wired / wireless terminal, a PDA, a mobile phone, and the like. A client program is installed in the client computer 13 separately from the server computer 10. When the client program is installed, a program window as shown in FIG. 8 is displayed. The window of the client program is almost the same as that provided by the window of the server program, but instead of the server on button 31 provided by the server program, a server connection button 34 for selecting a connection with the server is formed. The setup button provided by the server program does not exist in the client program. The most important of these differences is that the multi-view icon 37 is formed in the client program window. When the multi-view icon 37 is selected, the window of the client computer 13 is divided into a plurality of windows to form a plurality of active windows 39, wherein the client computer 13 is connected to a plurality of server computers 10 A plurality of images provided from each server computer 10 can be displayed on each active window 39. On the other hand, even if a plurality of cameras are connected to one server computer 10 may be set so that the image taken from each camera 40 is displayed on each active window (39).

The basic operation of the unmanned monitoring system by such a configuration will be described in detail with reference to FIG. 9.

When the power is applied and the unmanned surveillance system is operated (S10), the fan motor 42 and the tilting motor 44 are operated so that the camera head 45 rotates the plurality of monitoring points sequentially according to the client preset order. And photographed (S20, S30). At this time, the absolute position of the fan motor 42 and the tilting motor 44 is detected by the potentiometer 47 and provided to the controller 18 (S40), and the potentiometer ( By comparing the angle according to the voltage detected at 47 and the angle of the pan motor 42 and the tilting motor 44 at the monitoring point stored in the database, it is determined whether the camera head 45 is accurately photographing the monitoring point. It is made (S50). At this time, when the camera head 45 does not accurately capture the monitoring point, the controller 18 operates the fan motor 42 and the tilting motor 44 to control the camera head 45 toward the monitoring point. Then (S55), if the position of the camera head 45 is corrected to take a picture.

When the camera head 45 is accurately directed to the detection point, the monitoring point is immediately taken (S60), and the captured image is provided to the server computer 10 and displayed through the program window of the server computer 10. (S70, S80). The server computer 10 stores the captured image in the database 11 when the client selects the recording mode button 23 during shooting, and the event occurs only when the client wants to store the image of the event even when the event occurs. The image of the point is stored in the database 11. When the client computer 13 is connected to the server computer 10 while photographing the surveillance zone, the captured image is provided to the client computer 13 from the server computer 10 (S90 and S100).

On the other hand, when the event occurs in the monitoring area look at the response process by the unmanned monitoring system, referring to Figure 10 as follows.

When an event has been detected from the human body sensor 51, the fire sensor 52, the door / window opening / closing sensor 54, and the light sensor 55 installed in the monitoring area, information about the detected event is displayed. Provided to the server computer 10, the controller 18 takes action corresponding to the event.

For example, when the occurrence of a fire is detected by the fire detection sensor 52 (P10), the detection result is provided to the server computer 10 (P20), the controller 18 determines the monitoring point where the fire occurred. (P30). In general, a plurality of fire detection sensors 52 are installed throughout the monitoring area, and can determine the fire occurrence monitoring point according to whether or not the fire detection of each fire detection sensor 52 and the degree of heat or gas. When the fire occurrence monitoring point is identified, the controller 18 operates the fan motor 42 and the tilting motor 44 so that the camera head 45 faces the monitoring point so as to capture the monitoring point (P40). . At this time, the controller 18 operates the linear interpolation unit 19 to obtain a linear equation connecting the position of the current camera head 45 and the position of the fire occurrence monitoring point, so that the camera head 45 is a straight line. It is possible to move to the fire occurrence monitoring point along the straight line determined by interpolation, and at this time, it is possible to control the moving speed of the camera head 45 by operating the acceleration and deceleration device. While moving the camera head 45 in this manner, the controller 18 operates the sprinkler 64 and / or the duct fan 65. At this time, when heat is detected from the heat sensor 52a, the sprinkler 64 is operated to extinguish the fire. When gas is detected from the gas sensor 52b, the duct fan 65 is operated to operate the gas. To discharge. If both heat and gas are detected from the heat sensor 52a and the gas sensor 52b, both the sprinkler 64 and the duct fan 65 are operated (P50). Meanwhile, the controller 18 notifies the client of the monitoring area through the communication module 16 to the wired / wireless terminal to notify that a fire has occurred (P60).

After the first response is completed, the controller 18 determines whether the fire is completely extinguished according to the detection result from the fire detection sensor 52 (P70), and when it is determined that the fire is completed and the event is finished, The fan motor 42 and the tilting motor 44 are operated to return to the state prior to the occurrence of the event to sequentially photograph each monitoring point again (P80). However, if it is determined that the fire extinguishing is complete, the communication module 16 is used to contact 119 or the like (P73) and maintain the monitoring state (P75).

On the other hand, the information about the monitoring point, the date and time of occurrence of the event, the content of the event, the image of the event is stored in the event DB 17 of the server computer 10, the information stored in the event DB 17 is statistical It is used as a data for more efficient unmanned surveillance system.

This unmanned surveillance system can utilize the DVR (Digital Video Recorder), and if such a DVR is equipped with a brief description of the unmanned surveillance system.

The DVR converts the recorded video data into digital data, compresses it according to the video compression standard, and stores it on the hard disk.It has no advantage in changing the image quality of the recorded video during recording and playback, and it is easy to manage the storage media. have.

As shown in FIG. 11, the unmanned surveillance system using the DVR includes a plurality of cameras 140, a DVR 110 connected to each camera 140, and a DVR 110 connected through a network. And a client computer 113 installed remotely. Here, the DVR 110 and the client computer 113 are provided with a DVR server program and a DVR client program, respectively.

When the DVR server program is installed in the DVR 110, a display window as shown in FIG. 12 is displayed. In the display window, when multiple cameras are connected to the DVR 110, a camera selection open menu 121 for selecting a specific camera, a position control button 123 for moving the camera up, down, left and right, and a camera Speed control button 125 for adjusting the moving speed, Patrol mode button 127 for allowing the client to display the monitoring point according to a preset order, and selecting to display the corresponding monitoring point upon detection input from the event detection group. Various buttons such as a sensor mode button 129 are formed.

On the other hand, the client program for DVR is installed in the client computer 13, and the display window which is almost the same as the display window by the server program for DVR is displayed.

The DVR 110 of such an unmanned surveillance system has an AD converter for converting a digital image from an analog system, and a compression unit for compressing a video screen using a video compression standard.

Accordingly, when the analog image photographed from each camera 40 is provided to the DVR 110, the analog image is converted into a digital image in the AD converter, and the digital image is compressed by the video compression standard in the compression unit. Then, when there is a request for a video from a client located at a remote location, the DVR 110 provides the video information to the client computer 113 through the network.

In the case of using the DVR as described above, it is different from the above-described embodiment in that analog video is converted into digital video through the DVR, compressed, and stored.

In this way, in the unmanned surveillance system, by setting a plurality of monitoring points that require special monitoring within the monitoring area, and by using the potentiometer 47 to detect the absolute position of the camera head, the monitoring point is accurately Make sure you can shoot. Accordingly, the monitoring of the monitoring point can be performed more efficiently, thereby improving the reliability of the unmanned monitoring system and allowing the client to be provided with accurate and safe security and security.

On the other hand, in addition to being able to detect the events occurring in the monitoring area in real time from a remote location, to resolve the events in a quick primary response. In addition, by rotating the camera head 45 to the monitoring point where the event occurred, it is possible not only to confirm the progress of the event in real time, but also to perform the secondary response according to the result of the primary response. Accordingly, the event can be resolved more effectively and quickly.

As described above, according to the present invention, it is possible to set a plurality of monitoring points in advance and to grasp the exact position of the camera by using a potentiometer, and thus to accurately capture the monitoring points. In this way, the monitoring and the security can be effectively performed, thereby improving the reliability of the system and ensuring the safety of the client.

On the other hand, it is possible to perform an immediate primary response to an event occurring in the surveillance area at a remote location, so that the event can be resolved quickly and effectively.

1 is a schematic configuration diagram of an unmanned surveillance system according to the present invention,

2 is a screen of a display window for a server displayed on the server computer of FIG.

3 is a block diagram of the server computer of FIG.

4 is a perspective view of the camera of FIG. 1, FIG.

5 is a block diagram of the camera of FIG. 4;

6 is a block diagram of an event detection group of FIG. 1;

7 is a block diagram of an event response group of FIG. 1;

8 is a screen of a display window for a client displayed on the client computer of FIG.

9 is a flowchart illustrating a camera operation control process of the unmanned surveillance system according to the present invention;

10 is a flowchart illustrating a response process when an event occurs in the unmanned surveillance system according to the present invention;

11 is a schematic configuration diagram of an unmanned surveillance system equipped with a DVR according to another embodiment of the present invention;

12 is a screen of a display window for a DVR displayed on the DVR of FIG.

* Explanation of symbols for the main parts of the drawings

10: server computer 11: database

13: Client Computer 15: Control Group

16: communication module 17: motion tracking unit

18: controller 19: linear interpolation unit

20: Display window for server 21: Detect mode button

22: patrol mode button 23: recording mode button

24: sensor mode button 25: status bar

27: Zoom Button 29: Camera Selection Open Menu

31: Server On Button 32: Monitoring Setting Button

33: Motion button 35: Setup button

40: camera 41: camera body

42: fan motor 43: rotating body

44: tilting motor 45: camera head

47: location detection unit 50: event detection group

51: human body detection sensor 52: fire detection sensor

53: door opening and closing detection sensor 54: window opening and closing detection sensor

55: light detection sensor 60: event response group

61: speaker 62: door lock

63: window lock 64: sprinkler

65: duct fan 66: light switch

70: I / O module

Claims (5)

A camera body fixed to the ceiling in the sensing area, a rotatable body rotatably coupled to the camera body and rotating about a rotation axis horizontal to the ceiling, and a rotating shaft installed on one side of the rotatable body to be perpendicular to the ceiling A camera having a camera head rotating around the camera; In the unmanned surveillance system including a server computer and a client computer receiving the image captured by the camera, The camera is installed in the camera body and the fan motor for driving the rotating body, the tilting motor is installed in the rotating body for driving the camera, for sensing the absolute position of the fan motor and the tilting motor Further comprising a position sensing unit; The server computer may include a database storing absolute position information of a plurality of monitoring points requiring monitoring, and tilting the pan motor so that the camera head reaches the monitoring points according to a detection result from the position detecting unit. Unattended monitoring system comprising a controller for controlling the motor. The method of claim 1, The position sensing unit, the unmanned monitoring system, characterized in that the potentiometer for sensing the voltage for the absolute position of the fan motor and the tilting motor. The method of claim 2, An event detection group detecting that an event such as a fire or an intrusion has occurred at the monitoring point; An event response group capable of eliminating the event such as a sprinkler, a light, a speaker, a door, a window of the monitoring point; And a contact step of contacting the client by using a wired or wireless terminal when the event occurs. The method of claim 3, wherein The controller further comprises a communication module capable of communicating with the wired and wireless terminal of the client; And the controller contacts the client through the communication module when an event occurs. A camera body fixed to the ceiling in the surveillance zone, a rotating body rotatably coupled to the camera body and rotating about a rotation axis horizontal to the ceiling, and a rotating shaft installed on one side of the rotating body to be perpendicular to the ceiling A camera having a camera head rotating around the camera; In the control method of the unmanned surveillance system including a server computer and a client computer receiving the image captured by the camera, A monitoring point designating step of designating a plurality of monitoring points requiring special monitoring in the monitoring area and storing absolute position information for each monitoring point; An absolute position sensing step of sensing an absolute position of an area photographed by the camera head when the camera head is driven; A position determining step of determining whether the camera head is photographing the monitoring point by comparing an absolute position of the camera head with an absolute position with respect to the predetermined monitoring point; And a position correction step of moving the camera head to the monitoring point by operating a motor for driving the camera head when the absolute position of the camera head and the absolute position with respect to the predetermined monitoring point are above a predetermined error range. Control method of the unmanned surveillance system, characterized in that.