KR20010038264A - CCD camera and method for transmission an alarm signal in case of emergency - Google Patents

Abstract

PURPOSE: A CCD camera for transmitting an emergency situation signal and a transmitting method of the emergency situation signal using the same are provided to transmit various alarm signals in accordance with emergency situations, thereby protecting users from the emergency situations and arresting an offender. CONSTITUTION: An image signal input(110) inputs external images to the CCD camera. An image signal transmitter(120) transmits the input signals to a monitor or a recorder connected to the CCD camera. A basic operation setting unit(130) sets the basic operations of the CCD camera. A controller(140) controls the image signal input(110) and image signal transmitter(120) in reference to the contents set by the basic operation setting unit(130) or internally set content. An emergency situation processor(150) previously set a reference image for recognizing the emergency situation in a memory, and then recognizes a situation in which an image similar to the set reference image is input as the emergency situation to generate an alarm signal.

Description

Surveillance camera for transmitting an emergency signal and method for transmitting an emergency signal {CCD camera and method for transmission an alarm signal in case of emergency}

The present invention relates to a surveillance camera for transmitting an emergency signal and a method for transmitting an emergency signal, in particular, by monitoring the emergency camera by itself and transmitting various alarm signals accordingly, thereby protecting users from an emergency. The present invention relates to a surveillance camera for transmitting an emergency signal and a method for transmitting an emergency signal therefor for arresting a criminal.

In general, the surveillance camera is installed in a public place where cash is handled, such as a general store or a bank, or a place where people do not frequently visit, to identify emergency situations such as crime scenes, and show the screen collected by the surveillance camera to the monitor. It consists of a monitoring system with a monitor to give, a recorder to record the picture, and an alarm signal sender to convey to a surveillance organization a crisis situation.

FIG. 1 is a schematic internal block diagram of a general CCD camera. Referring to FIG. 1, a conventional CCD camera includes an image signal input unit 10 for inputting an external image into a camera, and the input signal to the camera. The image signal transmission unit 20 for transmitting to the connected monitor or recorder, the basic operation setting unit 30 for setting the basic operation of the camera, the contents set in the basic operation setting unit 30 or the contents set internally, etc. The control unit 40 controls the image signal input unit 10 and the image signal transmission unit 20 with reference.

In the case of such a conventional surveillance system, an image is input from the surveillance camera when an intensity or other emergency occurs, and the image signal input from the camera is input to the monitor while recording at the same time so that the human eye can check the image. It is.

However, a user using such a monitoring system must separately operate an alarm signal signal to notify the situation in case of an emergency such as a robbery. That is, in the prior art, the alarm sending system for notifying recording and emergency situation through image input is divided.

Therefore, the user must take a separate action for alerting in case of an invasion of the robbery or an emergency situation, and there is a risk that such an operation may be detected from the robbery, so that the user cannot take an alert for an emergency In many cases, alarms are often sent after the damage has already occurred.

Accordingly, in the present invention, in order to solve the above problems, the surveillance camera itself recognizes an emergency situation and transmits various alarm signals accordingly, thereby protecting users from an emergency situation and sending an emergency signal for arresting a criminal. An object of the present invention is to provide a surveillance camera and a method for transmitting an emergency situation signal.

In order to achieve the above object, the surveillance camera provided in the present invention sets a reference image for recognizing an emergency situation in a memory in advance, and when an image similar to the set image is inputted through the camera, the situation is converted into an emergency situation. It further comprises a crisis situation processing unit for recognizing and generating an alarm signal, the emergency response method of the surveillance camera by first setting the reference screen for recognizing the emergency situation in the internal memory of the surveillance camera, and then from the outside When an image is input, the input image is compared with the reference screen, and if the externally input image and the reference screen exist within a certain error, the situation is recognized as a crisis situation and a series of processes for sending an alarm signal accordingly It consists of.

1 is a schematic internal block diagram of a typical CCD camera,

2 is a schematic internal block diagram of a CCD camera according to an embodiment of the present invention;

3 is an internal block diagram of a crisis situation processing unit according to an embodiment of the present invention;

4 is a flowchart illustrating a crisis situation processing method of a CCD camera according to an embodiment of the present invention;

5 is a configuration diagram of a monitoring system according to an embodiment of the present invention;

6 is an embodiment of the image comparison of the present invention.

<Description of the code | symbol about the principal part of drawing>

110: image signal input unit 120: image signal transmission unit

130: basic operation setting unit 140: control unit

150: crisis situation processing unit 151: image detection unit

152: reference screen setting unit 153: image comparison unit

154: crisis situation reading unit 155: alarm signal transmitting unit

Hereinafter, with reference to the accompanying drawings will be described in more detail the apparatus and method of the present invention.

2 is a schematic internal block diagram of a CCD camera according to an embodiment of the present invention, FIG. 3 is an internal block diagram of a crisis processing unit according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. 5 is a flowchart illustrating a crisis situation processing method of a CCD camera according to an embodiment of the present invention, FIG. 5 is a configuration diagram of a monitoring system according to an embodiment of the present invention, and FIG. 6 is an embodiment of an image comparison of the present invention.

First, referring to FIG. 2, the CCD camera according to the present invention includes an image signal input unit 110 for inputting an external image into the camera, and an image signal transmitter for transmitting the input signal to a monitor or a recorder connected to the camera. The image signal input unit 110 and the image by referring to 120, a basic operation setting unit 130 for setting a basic operation of the camera, contents set in the basic operation setting unit 130, contents set internally, and the like. The controller 140 controlling the signal transmitter 120 and a reference image for recognizing an emergency situation are set in advance in a memory, and when an image similar to the set image is input through the camera, the emergency situation is changed. It is composed of an emergency situation processing unit 150 for recognizing and generating an alarm signal.

In addition, referring to FIG. 3, the emergency situation processor 150 may include a reference screen setting unit 152 for presetting and storing a reference image for recognizing an emergency situation, and an image signal input unit 110 of the surveillance camera. The image detection unit 151 for detecting a still image from a moving image input through the image, the image detected by the image detection unit 151, and the reference image preset in the reference screen setting unit 152 are compared and output the result value. When the image detected by the image detector 151 and the image preset in the reference screen setting unit 152 exist within a predetermined error by the comparison result of the image comparison unit 153 and the image comparison unit 153 The crisis situation reading unit 154 that controls the situation to recognize the situation and outputs an alarm signal, and the alarm signal transmitting unit 155 that sends the alarm signal output from the crisis situation reading unit 154 to the outside. phrase It is made.

In this case, the reference screen setting unit 152 stores a constant still image, the image detection unit 151 extracts a still image from a moving image input through the image signal input unit 110, and the image. The series of methods in which the comparing unit 153 compares a plurality of images is already known technique, and thus will be omitted in the description of the present invention. However, the image comparator 153 may process using a comparison calculator that is commonly used in the field of image processing.

In addition, the crisis situation reading unit 154 recognizes a crisis situation by comparing the two screens, when the user pulls out an object or takes a posture similar to the posture stored in the reference screen during unconscious body movement. In this case, in order to prevent the transmission of a crisis situation in such a case, a predetermined time for reading the crisis situation is set in advance, and only when the user continues the posture similar to the reference screen for more than that time, the crisis situation is recognized. .

For example, if the predetermined time is set to 5 seconds, only when the still image existing within the reference screen and the predetermined error continues for 5 seconds or more, it is recognized as a crisis situation and sent to the alarm signal transmitting unit 155.

An emergency situation is automatically recognized by the monitoring camera having such a configuration, and a series of processes for coping with the emergency situation will be described with reference to FIG. 4 as follows.

4 is a flowchart illustrating a crisis situation processing method of a CCD camera according to an embodiment of the present invention. Referring to FIG. 4, first, a user sets a screen for recognizing an emergency situation in an internal memory of a surveillance camera ( After the image is input from the outside (s201) (s202), the input image is compared with the screen set in the internal memory (s203).

At this time, the screen preset by the user in order to recognize the emergency situation sets the action that is frequently taken when the user is attacked by a robbery, for example, the user standing with hands raised It is used as a reference screen by directing a back and storing it inside the surveillance camera.

When the image input from the outside as a result of the comparison (s203) and the reference screen exist within a certain error (s204), the situation is recognized as a crisis situation (s205), and the corresponding alarm signal is sent (s206). Then, the automatic recording designation signal is sent to the recorder so as to record the input image (s207) to start recording.

If the result of the comparison (s203) is different from the image input from the outside, the operation of the general surveillance camera system is performed (s208).

In the crisis situation recognition process s205, the user may take out an object or take a posture similar to the posture stored on the reference screen during an unconscious body movement. After setting a predetermined time for reading the situation in advance, only when the user continues the posture similar to the reference screen for more than that time, it is recognized as a crisis situation.

On the other hand, Figure 5 is a block diagram of a surveillance system according to an embodiment of the present invention, referring to Figure 5, the surveillance system using the surveillance camera 100 of the present invention collected by the surveillance camera 100 A monitor 300 for showing a screen to a monitor, a recorder 500 for recording the screen, an alarm signal transmitter 400 for transmitting a crisis situation to a monitoring organization, and the devices 100, 300, 500. Control unit 200 for controlling the operation of the).

5 shows only the case where the surveillance camera 100 and the alarm signal transmitter 400 are connected wirelessly, the surveillance camera 100 and the alarm signal transmitter 400 may be connected by wire. Do.

In addition, with reference to Figure 6 will be described an embodiment of the image comparison of the present invention.

First, FIG. 6 (a) is a reference screen stored in the reference screen setting unit 152, and FIGS. 6 (b), 6 (c) and 6 (d) are still images detected by the image detection unit 151. It is a burn.

As shown in FIG. 6, each still image has a constant value for each pixel, and is stored in the reference screen setting unit 152 or the image detection unit 151, and the image comparison unit 153 positions and stores each pixel. Compare the values and print the result.

Then, in the crisis situation reading unit 154, if the still image detected by the image detection unit 151 is within a certain error from the reference screen stored in the reference screen setting unit 152 by the comparison result value. Recognizes as a crisis situation and transmits to the alarm signal transmitting unit 155.

The alarm signal transmitter 155 transmits an alarm signal by the signal transmitted from the crisis situation reader 154.

The apparatus and method of the present invention as described above, the user can set in advance the actions that can be taken when a robbery or other emergency occurs in the interior of the surveillance camera, the user takes a predetermined action when the actual emergency occurs, the surveillance camera By recognizing an emergency situation and sending out an alarm signal accordingly, an emergency situation can be automatically notified to another person without the knowledge of a criminal such as a robbery.

Therefore, users do not have to take risks and operate separate security systems, which has the advantage of significantly increasing the safety and accuracy of the surveillance system itself.

Claims (4)

In the surveillance camera, After setting the reference image in advance to recognize the emergency situation in the memory, and further includes an emergency situation processing unit for recognizing the situation as an emergency situation and generating an alarm signal when an image similar to the set image is input through the camera. Surveillance camera for transmitting the emergency signal, characterized in that configured. According to claim 1, The emergency situation processing unit A reference screen setting unit for presetting and storing a reference image for recognizing an emergency situation; An image detection unit for detecting a still image from a moving image signal input from an image input unit of the surveillance camera; An image comparison unit for comparing the image detected by the image detection unit with a reference image preset in the reference screen setting unit and outputting a result value; When the image detected by the image detection unit and the image preset in the reference screen setting unit exist within a certain error by the comparison result of the image comparison unit, the crisis situation reading unit controls to recognize the situation as a crisis situation and output an alarm signal. Wow, Emergency signal transmission monitoring camera, characterized in that the alarm signal output unit for transmitting the alarm signal output from the crisis situation reading unit to the outside. The method of claim 2, wherein the crisis situation reading unit Preset a certain time for reading the crisis situation, The alarm signal transmitting unit alerts when an image detected by the image detecting unit and an image preset in the reference screen setting unit exist within a predetermined error due to a comparison result of the image comparing unit, and the time recognized as a crisis situation becomes longer than the set time. Surveillance camera for transmitting an emergency signal, characterized in that the control to send a signal. A first process of setting a reference screen for recognizing an emergency in the internal memory of the surveillance camera; A second process of comparing the input image with the reference screen when an image is input from the outside; A third process of recognizing the situation as a crisis situation when the image input from the outside and the reference screen exist within a certain error as a result of the comparison of the second process; When the crisis situation is recognized in the third process, an alarm signal is sent according to the third process, and an emergency situation signal is transmitted from the surveillance camera, characterized in that the automatic process is designated to the recorder so that the input image is recorded. Way.