KR100229886B1 - Apparatus for reproducing/writing the video of a supervisory camera and method of controlling the same - Google Patents

Abstract

The present invention relates to an image storage and playback apparatus for a surveillance camera, and a control method thereof, in which a surveillance camera is driven only when a person is sensed,

The present invention relates to an image storage and playback apparatus for a surveillance camera having a plurality of cameras installed to photograph different places and a plurality of sensors for detecting the presence or absence of a person at a place to be photographed by the camera, A personal computer for storing the camera information and the storage time in an image photographed by the camera when the person is sensed and reading the photographed image at a predetermined time of the images photographed by the camera selected by the operation of the keyboard and outputting the sensed image to a monitor; And a monitor for receiving and displaying the image output from the personal computer.

Therefore, it is possible to easily configure the system for theft prevention and surveillance, to search effectively and conveniently, and to maximize the period during which information can be stored in a limited storage area.

Description

Image storage and playback apparatus of surveillance camera and control method thereof

The present invention relates to a surveillance camera, and more particularly, to a surveillance camera that selectively drives a specific camera among a plurality of surveillance cameras only when a person is sensed, photographs the set area, And more particularly, to an improved image storage and playback apparatus for a surveillance camera and a control method thereof.

As known, various technologies such as a camera and a camcorder have been developed and used for storing, storing and playing back desired scenes.

One example of using this shooting and reproducing technology is a surveillance camera system, in which a camera equipped with a photographing device is installed for the purpose of preventing or monitoring theft at a specific place such as a bank or a shop, do.

The conventional surveillance camera system has a lot of information to be stored by performing continuous shooting, and accordingly, a special data compression technique has to be applied in the storage method. Accordingly, the image input from the camera in one direction is stored as one record, and the configuration of the recorder is required for each direction in order to store images in various directions. In addition, since a storage medium in the recorder generally uses a video cassette tape, it is not easy to search for a certain time for a specific camera direction.

Therefore, the conventional surveillance camera system for the conventional theft prevention and surveillance requires a large amount of storage recorder and video cassette tape, and the retrieval operation is not easy. Therefore, the construction of a surveillance camera system has an economic burden, and there is a problem that a lot of expenses are required to maintain the surveillance camera system. In addition, since an image photographed by a camera is sequentially recorded on a video cassette tape, there is an inconvenience in a search operation for searching an image in a specific time range.

It is an object of the present invention to provide an image storage and playback apparatus for a surveillance camera and a control method thereof for minimizing the amount of data stored by storing images in a specific direction only when necessary for theft prevention and surveillance purposes.

It is another object of the present invention to provide an image storage and playback apparatus for a surveillance camera that can easily retrieve data stored for theft prevention and surveillance, and a control method thereof.

FIG. 1 is a block diagram showing an embodiment of an image storage and reproduction apparatus of a surveillance camera according to the present invention.

FIG. 2 is a flowchart showing a storage method as an embodiment of an image storage and reproduction apparatus of a surveillance camera according to the present invention and a control method thereof.

FIG. 3 is a flowchart showing a search and reproduction method as an embodiment of an image storage and reproduction apparatus of a surveillance camera and a control method thereof according to the present invention.

Description of the Related Art

10 ~ 1n: Camera 20 ~ 2n: Sensor

30: video input / output unit 32: keyboard

34: personal computer 36: monitor

According to an aspect of the present invention, there is provided an image storage and playback apparatus for a surveillance camera, including a plurality of cameras installed to photograph different locations, and a plurality of sensors for detecting presence or absence of a person at a location photographed by the camera The image storage and playback apparatus of the surveillance camera may further include a storage unit storing camera information and storage time in an image captured by the camera when the sensor detects a person, A personal computer for reading an image photographed at a time and outputting the read image to a monitor; And a monitor for receiving and displaying an image output from the personal computer.

A monitor is connected to the video input / output unit, and a keyboard having a search key and a search range setting key is connected to the personal computer, so that an image within a predetermined time range of a specific camera stored in the personal computer is transmitted through the video input / And output it to the monitor.

The method for controlling an image storage and playback apparatus of a surveillance camera according to the present invention is a method for controlling an image storage and playback apparatus of a surveillance camera including a plurality of cameras and a sensor installed for each of the plurality of cameras, A method of controlling an apparatus, comprising: checking a sensing part when a sensing signal is input from a specific sensor; driving a corresponding camera of the sensing part; storing the image input from the camera in a storage area .

The method may further include setting a search range to which a search key is input and a search target camera and a key for setting a search range are inputted, and outputting an image corresponding to the set range to a monitor.

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

Referring to FIG. 1, in an embodiment of the present invention, a plurality of cameras 1 to n (10 to 1n) installed in specific directions and sensors 1 to n (20 to 2n ). The cameras 1 to n (10 to 1n) are connected to the video input / output unit 30 so as to output images to be photographed.

The personal computer 34 to which the keyboard 32 is connected is connected to control the driving of each of the cameras 1 to n (10 to 1n), and is connected to receive the sensing signal from the sensors 1 to n (20 to 2n) And is interfaced with the video input / output unit 30 so as to input and output the photographed video signals. The video input / output unit 30 is connected to the monitor 36 for monitoring the stored video output from the personal computer 34. [

Here, the sensors 1 to n (20 to 2n) may be configured as sensors for detecting the presence or absence of a person, and typical examples thereof include proximity sensors, infrared sensors, and the like.

The operation of the embodiment according to the present invention constituted as described above and a control method thereof will be described.

The image storage and playback apparatus of the surveillance camera according to the present invention includes a storage mode for capturing images by the cameras 1 to n (10 to 1n) and storing them in the personal computer 34, and a monitor 36 ) And monitoring the data to be monitored.

First, referring to FIG. 2, a mode for photographing and storing an image will be described.

The personal computer 34 determines whether there is an input of a sensing signal from the sensors 1 to n (20 to 2n) provided corresponding to the respective cameras 1 to n (10 to 1n) in the specific place to be photographed at step S2, If it is determined that there is an input of the sensing signal, steps S6 to S10 are sequentially performed to check which sensor is the sensing signal input.

The personal computer 34 confirms the sensor to which the sensing signal is inputted in steps S6 to S10, and drives the corresponding camera by performing steps S12, S16, and S20. The driven camera captures a directed place and inputs it to the personal computer 34 via the video input /

Then, the personal computer 34 performs the steps S14, S18, and S22 to divide the input image into cameras and store them in chronological order. If there is no corresponding sensor in step S10, step S24 is performed to perform error processing.

Here, the method for storing the photographed image is to store the storage area of the personal computer 34 separately for each camera. That is, if the storage area address of the camera 1 is set to '0000', the storage area address of the camera 2 is set to '0001', and the storage area address of the camera n is set to 'FFFF' The images are stored in chronological order in the address corresponding to the camera.

As described above, the image captured and input by each camera is stored in the personal computer 34.

Therefore, the cameras 1 to n (10 to 1n) do not take the above-mentioned photographing, but temporarily perform capturing only when necessary, so that the amount of data to be stored is first extinguished. In addition, compressing the method of storing the data can more effectively store a large amount of images.

On the other hand, as described above, the image stored in the personal computer 34 is monitored and searched by the search mode in FIG.

That is, when the searcher operates the search key provided on the keyboard 32, the corresponding key signal is input to the personal computer 34, and the personal computer 34 performs step S30 to scan the key signal input, S32 is performed, and if it is not the input of the search key, step S34 is performed as a routine for performing a function corresponding to the inputted key.

If the input key signal is confirmed by the search key in step S32, the personal computer 34 performs step S36 to select an image photographed by the corresponding camera among the images photographed by the search target camera. At this time, the searcher must input the code assigned to the search target camera after manipulating the search key. After selecting the search target camera, the personal computer 34 performs step S38 to determine a code to be input to set the search range (time) successively input to the code assigned to the search target camera, and sets the search range And outputs the corresponding range content image of the target camera stored in the built-in memory (not shown) to the video input / output unit 30 by performing the subsequent step S40. The video signal input to the video input / output unit 30 is input to the monitor 36 and monitored.

Therefore, the photographed image within the search range such as a desired time or a desired date in the desired camera direction can be displayed on the monitor 36 and monitored.

Therefore, according to the present invention, it is not necessary to separately use a tape using a video camera, the captured image can be photographed only for a necessary time and stored in the personal computer for theft prevention and monitoring, You can search.

According to the present invention, it is possible to easily configure a system for theft prevention and surveillance, to search effectively and conveniently, and to maximize the period during which information can be stored in a limited storage area.

While the invention has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (3)

1. An image storage and playback apparatus for a surveillance camera having a plurality of cameras installed to photograph different places and a plurality of sensors for detecting presence or absence of a person at a place to be photographed by the camera, A personal computer for storing the camera information and the storage time in an image photographed by the camera and reading the photographed image at a predetermined time among the images photographed by the camera selected by the operation of the keyboard and outputting the read image to a monitor, A monitor for transmitting and displaying an output image; And a control unit for controlling the operation of the monitoring camera. A plurality of cameras and sensors installed respectively for the plurality of cameras; a sensor configured to store images input from the camera; and a monitor for monitoring the images reproduced and output from the personal computer, And a control method of a reproducing apparatus, comprising the steps of: confirming a sensed signal when a sensing signal is input from a specific sensor; Driving the corresponding camera of the sensing part; And storing the images input from the camera in a storage unit in a chronological order; And a control unit for controlling the image recording and reproducing apparatus. The method of claim 2, further comprising: setting a search range by inputting a search key, inputting a search target camera and a key for setting a search range; And outputting an image corresponding to the set range to a monitor; And a control unit for controlling the operation of the monitoring camera.