KR100239889B1 - System operating method using computer screen saver, image processing - Google Patents

Abstract

The present invention relates to a function for automatically monitoring and supervising an office by operating a program with a screen saver function when a video input such as a video conferencing environment on a general PC is provided.

In particular, the present invention relates to a camera for acquiring and outputting image data for recognizing a person and an object or for detecting a moving object, and a surveillance system using an image processing technique for capturing and storing movement of image data acquired from the camera. A first process of detecting a degree of displacement between a previous image and a current image among the acquired image signals, a second process of determining whether an intrusion has occurred by comparing the degree of displacement detected in the first process with a preset threshold value, and A second step of compressing and storing the image data, generating a sound or displaying a video by using a PC when the determination in the second step determines that the intrusion has occurred. It relates to how to operate a security system.

Description

Operation Method of Personal Surveillance / Security System Using Computer Screensaver and Image Processing / Compression Storage Technique

The present invention is a personal PC monitoring / security system that can be used in a general PC (with a video capture card and a video input device such as a camera or digital camera), the screen saver function that is automatically performed when the computer is not used for a certain period of time. The present invention relates to a system for easily and conveniently performing automatic surveillance and security roles in an office by applying image retrieval technology and video capture video compression technology.

In general, the home security system is a single line alarm system that operates mainly when a door or window is opened, or is classified into a heat detection type that monitors and tracks heat using an infrared sensor that detects heat.

Briefly referring to FIG. 1 attached to the conventional home security system described above, a bell 10 for generating a warning sound according to an input control signal is provided in a window for the purpose of a door or ventilation for entrance and exit. And when each door is closed, a plurality of switches (20A to 20C) to operate on and off when open, and the infrared sensor to detect the body temperature of a person or animal by detecting infrared rays and output the detection signal (30) And sensing a on-off state of the switches 20A to 20C by applying a predetermined voltage to the switches 20A to 20C, and receiving a detection signal output from the thermal sensor 30 to switch off or It is composed of an alarm control unit 40 for controlling the bell in the heat detection state.

In the conventional security system configured as described above, if the intruder opens the door or the window, the switch provided is disconnected or the body senses the temperature so that the intruder cannot recognize who the intruder was after the alarm system was operated. There was a problem of low efficiency in arrest.

In order to solve the problems described above, in recent years, banks and public institutions have applied a closed circuit using a video camera (VC) and a monitor (CRT) as shown in FIG. Using a method of storing as an image on a video tape using a, but this method has a problem that the data storage is not easy because the installation cost is expensive and the image data is an analog method.

In particular, when an intruder is an intelligent criminal, problems such as an alarm system not operating normally also occur. In addition, such a method is expensive to install and separately installed equipment, the performance is limited to perform.

An object of the present invention for solving the above problems is to monitor the external intrusion through the simple camera image without additional sensors to store the video and audio as a function of the PC, that is, to generate a variety of functions, such as warning sounds, dialing It is to provide a security system that can perform such.

According to the present invention, the screen saver function is installed and operated in the window function, so that the computer can record the visitor automatically while the user is absent and can monitor and monitor the remotely so that time and attendance management, commute management and surveillance supervision can be achieved. This video detection works by showing greetings and greeting video on the computer screen when a guest comes in and recording it, which can be used as a secretary function that can be used as a visitor's video mailbox. (Eg, hacks, "thieves", etc.) to prevent outside intrusion.

1 is an exemplary configuration of a general security system

2 is an exemplary configuration diagram of a general security system using a conventional image processing technique.

3 is an exemplary configuration diagram of a personal surveillance system using an image processing technique according to the present invention.

4 is a diagram illustrating a correlation between an operating module and a computer system operating module of the personal monitoring system according to the present invention.

5 is a flowchart illustrating an operation method according to the present invention.

Features of the present invention for achieving the above object, the operation module operating on the screensaver is a security mode of the computer is automatically performed when a predetermined time elapses while the operation of the computer is not performed to recognize or move people and objects A monitoring system using a camera that acquires and outputs image data for detecting an object and an image processing technique for capturing and storing motion by capturing image data acquired by the camera. A first step of detecting a degree of displacement between the current images, a second step of determining whether an intrusion has occurred by comparing the degree of displacement detected in the first step with a preset threshold value, and a determination at the second step If it is determined that an intrusion has occurred, save the currently acquired image data And a third process of performing a preset warning function (sound or video output, etc.).

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

3 is an exemplary configuration diagram of a security / security system using an image processing technique according to the present invention. The camera 100 acquires and outputs image data in order to recognize a person and an object or to detect a moving object. It is composed of a computer (PC) for capturing the image data acquired by the camera 100 and storing the image data of the variation amount image data after the comparison with the previous data by the data compression method.

First, referring to FIG. 4 attached to a correlation between an operating module of a personal surveillance system and a system operating module or a process using a computer screen saver and an image processing technique according to the present invention.

System operation module (SO) for controlling the overall operation of the computer (PC), and a program selected by the user under the control of the system operation module (SO) and performs the data according to the system operation module (SO) In the case where it is determined that screen protection is necessary in the program operation module PO and the system operation module SO, for example, a keyboard input or operation of the program operation module PO is not performed for a predetermined time. If maintained, the screen saver operating module (SSO) and the screen saver operating module (SSO) for preventing damage to the CRT by displaying a specific screen is operated at the same time when operating the camera generated by the system operating module (SO) When the operation control signal is input, the image reading module (PIO) which normally operates and acquires the surrounding image as an image, and the image reading module (PIO) is acquired. The motion detection module (MDO) detects the degree of motion of the image by receiving the received image data and compares it with the previous image, and the system for comparing and determining the information according to the degree of motion detected by the motion detection module (MDO) with the threshold data. A data compression module (DSO) for storing image data detected by the motion detection module (MDO) under operation control of the operation module (SO), and acquired through the camera under control of the system operation module (SO). And a read screen display module (PDO) for displaying image data.

The operation of the motion compression module during the operation of the operation module and the system operation module of the personal monitoring system having the above correlation will be described with reference to FIG. 5.

5 is an operational flowchart according to the present invention.

First, the user operates the camera connected to his PC when he is away and sets the security mode on his PC.

Accordingly, the screen saver registration and initialization module proceeds. In addition, after the security program (not shown in FIG. 4) is operated at the time of the saver screen operation, the image of the field obtained from the current camera is stored as reference data. In the process, after storing one field of image data, new field data is received.

Thereafter, in the above-described process, the reference data stored in advance is compared with the currently input image data to detect the degree of displacement according to the amount of change of the image, and it is determined whether the detected displacement degree is greater than or equal to the preset threshold value. If it is determined that the threshold is less than or equal to the threshold, the process proceeds to the initial process again and the above process is performed again.

On the other hand, if it is determined that the detected displacement degree is greater than or equal to the threshold value, it is determined whether the security monitoring mode. If the security monitoring mode is determined, it is fed back to store the detected image data and perform the input process of the reference data again.

On the other hand, if it is determined that it is not the security monitoring mode, the security mode is determined. At this time, if the security mode is judged, the recorded video, audio playback and screen, and the moving picture compression storage at the same time to perform the input process of the reference data again. Feedback.

On the other hand, if not in the surveillance mode, it is determined whether the secretary mode is to play the recorded video in the secretary mode, video recording and storage is performed.

Providing a personal monitoring system using the image processing technique according to the present invention operating as described above, the disadvantage of the identification of intruders in the way that the switch is disconnected or the method of sensing the body temperature of the conventional security system and the closed circuit There is an effect of solving the problem that the data storage is not easy because the installation cost in the use method is expensive and the image data is analog method.

In addition, it can prevent various intruders by recording and recording various sounds in advance so that they can play a role in the PC environment, and when a visitor visits the computer, "Leave a Hello Message". It can be compressed and stored so that it can be a personal assistant.

Claims (2)

A monitoring system using a camera that acquires and outputs image data for recognizing a person and an object or detects a moving object, and an image processing technique for capturing and storing motion by capturing image data acquired by the camera. A system operation module for controlling the overall operation of the computer; A screen saver operation module for preventing damage to the CRT by displaying a specific screen when it is determined that screen protection is necessary in the system operation module, for example, when a keyboard input or a program is maintained for a predetermined time; An image reading module which operates simultaneously when the screen saver operation module is operated but acquires the surrounding image as an image when the camera operation control signal generated by the system operation module is input; A motion detection module that receives the image data acquired by the image reading module and detects a degree of movement of the image by comparing with a previous image; A data compression module configured to store image data detected by the motion detection module according to an operation control of the system operation module which compares and determines information according to the degree of movement detected by the motion detection module with threshold data; And And a read screen display module for displaying image data detected by the motion detection module under control of the screen saver operation module and the system operation module. An operating module that operates on the screensaver. After a certain time has elapsed while the computer is not operating, the computer automatically enters the security mode to acquire image data to recognize people and objects or to detect moving objects. A monitoring system using an image processing technique for capturing an output camera and image data acquired from the camera to detect and store motion, A first step of detecting a degree of displacement between the previous image and the current image among the acquired image signals; A second step of determining whether an invasion has occurred by comparing the degree of displacement detected in the first step with a preset threshold; And And a third step of storing the currently acquired image data if it is determined that the intrusion has occurred in the determination in the second step.

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