KR20150057366A - Security monitoring system and method using ultra wideband through-the-wall radar and image sensor - Google Patents

Abstract

The invention provides a security monitoring system and method using ultra wideband through-the-wall radar and image sensor. The invention comprises CCTV (Closed Circuit TV) camera; a user terminal; an ultra-wideband signal generator that generates impulse signals; an array antenna that sends the said impulse signals and receives reception signals; a database (DB) that stores background data when there is no target within the scope of monitoring area; a mixer that calculates difference signals between the stored background data and the signals received at the array antenna; and a controller that detects the target using the difference signals calculated, generates and sends target-detecting signals to the user terminal, controls the ultra-wideband signal generator to determine the location of the target detected through beam forming and sends the location determined to the user terminal. The controller also controls the CCTV camera to record the target at the determined location and sends the image recorded to the user terminal. An advantage of the invention is that an intruder cannot know whether monitoring is being performed because the invention is installed behind or inside the wall. Above all, the invention can detect intrusion unware to the intruder even though the intruder evades CCTV camera and make up for the weakness of the conventional CCTV camera by automatically tracking and recording the intruder through connection with the CCTV camera.

Description

TECHNICAL FIELD [0001] The present invention relates to a security monitoring system and method using ultra-wideband wall penetration radar and image sensor,

The present invention relates to a security surveillance system and method, and more particularly, to a security surveillance system and method using an ultra-wideband wall penetration radar and an image sensor.

Background Art [0002] Conventional security monitoring systems for use in indoor intruders for surveillance purposes and the like are mainly using CCTV (closed circuit TV). The surveillance area is photographed continuously to detect whether an intruder appears on the image and to sound an alarm.

This security monitoring system is mainly installed on the ceiling, and there is a disadvantage that an intruder can grasp the position of the CCTV camera in advance and cope with it.

Such a structure in which a CCTV camera protrudes to the outside can be disabled by various methods such as an intruder covering a cover or destroying the cover.

In addition, even if the CCTV camera can not recognize the shooting direction of the CCTV camera, the CCTV camera can be easily avoided even if the shooting direction is changed.

And even if a temporary capture of an intruder is captured on a CCTV camera, the intruder can quickly avoid it.

In addition, when the CCTV camera is not an infrared camera, there is a disadvantage that sufficient illumination must be continuously provided in the surveillance area.

Thus, it is necessary to compensate for the weaknesses and disadvantages of conventional CCTV cameras.

It is necessary to make sure that intruders can not easily recognize that they are being monitored, and to avoid CCTV cameras.

An object of the present invention is to provide a security surveillance system utilizing an ultra-wideband wall penetration radar and an image sensor.

Another object of the present invention is to provide a security monitoring method using an ultra-wideband wall penetration radar and an image sensor.

The security surveillance system using the UWB transmissive radar and the image sensor according to the present invention can be applied to a CCTV (closed circuit TV) camera; A user terminal; An ultra wideband signal generator for generating an impulse signal; An array antenna for transmitting the generated impulse signal and receiving a received signal; A data DB for storing background data in a state where there is no target in the surveillance area; A mixer for calculating a difference signal between the stored background data and a reception signal of the array antenna; Detecting the target using the calculated difference signal, generating a target detection signal, transmitting the target detection signal to the user terminal, discriminating the position of the detected target through beamforming by controlling the UWB signal generator, And a controller for controlling the CCTV camera to shoot a target of the determined position and transmitting the photographed image to the user terminal.

Here, the array antenna may be embedded in the wall, or may be installed on the opposite side of the monitoring area with the wall interposed therebetween.

The array antenna may include a transmitting array antenna for transmitting the generated impulse signal and a receiving array antenna for receiving the received signal.

The array antenna may include an array antenna serving as both a transmitting and receiving antenna for transmitting the generated impulse signal and receiving the received signal.

Receiving antennas are arranged to receive the impulse signals from the UWB signal generator and transmit the impulse signals to the transmitting and receiving array antennas and to receive the received signals from the transmitting and receiving array antennas and transmit the received signals to the mixer, and a circulator.

According to another aspect of the present invention, there is provided a security surveillance method using an ultra-wideband wall penetration radar and an image sensor, comprising: generating an impulse signal by an ultra wideband signal generator; Receiving the generated impulse signal through an array antenna and receiving the received signal through the array antenna; Calculating a difference signal between the received signal and the background data in the absence of a target in the surveillance region previously stored in the data DB; The controller detecting the target using the calculated difference signal; The controller generating and transmitting a target sensing signal to a user terminal; The controller controlling the UWB signal generator to perform beamforming on the detected target and determining a position of the target; The controller transmitting the determined position to the user terminal; Capturing a target of the determined position by a CCTV camera under the control of the controller; And the controller may transmit the photographed image to the user terminal.

At this time, it is preferable that the array antenna is embedded in the wall or is disposed on the opposite side of the monitoring region with the wall interposed therebetween.

The array antenna includes a transmission array antenna for transmitting the impulse signal and a reception array antenna for receiving the reception signal, or an array antenna for both transmission and reception for transmitting the impulse signal and receiving the reception signal Lt; / RTI >

Herein, the step of generating the impulse signal is performed through an array antenna, and the step of receiving a reception signal through the array antenna includes the steps of: receiving the impulse signal and receiving the reception signal, The circulator may receive the impulse signal from the UWB signal generator and transmit the impulse signal to the transmitting and receiving array antenna and receive the receiving signal from the transmitting and receiving array antenna and transmit the receiving signal to the mixer .

The surveillance system and method using the ultra-wideband wall penetration radar and image sensor are embedded in the wall or inside the wall so that the intruder can not know whether the intruder is watching or not.

In addition, since it is unnecessary to provide illumination in the surveillance area, it is possible to automatically detect an intrusion and to sound an alarm, so that it is possible to quickly respond to intrusion and grasp the position in real time.

Above all, even if the attacker avoids the CCTV camera, it can detect the chip particle without knowing it, and by interlocking with the CCTV camera, the intruder can be automatically tracked and photographed, which can complement the vulnerability of the existing CCTV camera.

1 is a block diagram of a security monitoring system utilizing an ultra-wideband wall penetration radar and an image sensor according to the present invention.
2 is a flowchart of a security monitoring method using an ultra-wideband wall penetration radar and an image sensor according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail to the concrete inventive concept. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to FIG.

1 is a block diagram of a security monitoring system utilizing an ultra-wideband wall penetration radar and an image sensor according to the present invention.

Referring to FIG. 1, a security monitoring system (hereinafter referred to as 'security monitoring system') 100 using a UWB transmissive radar and an image sensor according to the present invention includes a CCTV camera 110, A user terminal 120, an ultra wideband signal generator 130, an array antenna 140, a data DB 150, a mixer 160, a controller 170, a circulator 180, . ≪ / RTI >

The array antenna 140 is embedded in the back of the wall or inside the wall, so that the intruder can not recognize whether or not the surveillance is being monitored. Thus, an intruder can not arbitrarily avoid detection or monitoring. All other configurations except for the CCTV camera 110 and the user terminal 120 may be embedded in the back of the wall or inside the wall.

In particular, since the frequency of the low frequency band utilizes the property of passing through a non-conductive medium such as a wall, illumination in the surveillance area does not need to be provided.

In addition, it can automatically detect real-time intrusion by comparing the background data of the surveillance area with the received signal in real time, and can detect the intruder's position in real time through beamforming.

Above all, even if the intruder avoids the CCTV camera 110, the intruder can be detected without knowing the chip particle, and the intruder can be automatically tracked by interlocking with the CCTV camera 110. The weak points of the CCTV camera 110 can be compensated and the chip particles can be precisely captured through the image of the CCTV camera 110.

Hereinafter, the detailed configuration will be described.

The CCTV camera 110 is installed in a building indoor or outdoor.

The user terminal 120 may be a wired terminal or a wireless terminal, and may be a smart phone of a user when the terminal is a wireless terminal.

The user terminal 120 is configured to receive and display a photographed image of the CCTV camera 110 in real time, thereby enabling the user to check in real time.

The user terminal 120 may also be configured to receive a target detection signal from the controller 170 indicating that an intruder is present and to alarm or alarm.

An ultra wideband signal generator 130 is configured to generate an impulse signal. Here, it is possible to detect a target with a high resolution through an ultra wideband (UWB) signal, and an ultra wideband (UWB) signal is used in a relatively low frequency band so that it can pass through a nonconductive medium such as a wall .

Accordingly, even if the security monitoring system 100 is embedded in the back wall or the wall, the intruder in the surveillance area can be easily recognized through the wall.

The array antenna 140 is configured to transmit the impulse signal generated in the UWB signal generator 130 and receive the received signal.

The array antenna 140 may be separately provided by the transmission array antenna 141 and the reception array antenna 142 and may be constituted by the transmitting and receiving array antenna 143.

In the case where the array antenna 140 is composed of the transmitting / receiving array antenna 143, the transmitting impulse signal and the receiving signal must be separated and processed, and therefore, the circulator 180 is required.

The data DB 150 includes And to store background data in a state in which there is no target in the surveillance area. This is configured to create a state in which there is no target in the surveillance area and to store the reception signal in advance as background data.

The mixer 160 is configured to calculate a difference signal between the received signal and the background data. The presence or absence of the target can be detected by the difference signal calculated by the mixer 160. [

The controller 170 is configured to sense the target using the difference signal generated in the mixer 160. [

The controller 170 is configured to control the UWB signal generator 130 to determine the position of the previously detected target through beamforming.

The controller 170 may generate a target detection signal when the target is detected, transmit the target detection signal to the user terminal 120, and transmit the position to the user terminal 120 in real time.

Meanwhile, the controller 170 may be configured to drive and control the CCTV camera 110 to track and photograph the target of the previously determined position. And the controller 170 may be configured to transmit the photographed image to the user terminal 120. [

Accordingly, the intruder can not avoid the photographing direction of the CCTV camera 110 and is exposed as it is.

The user can not only know whether an intruder is present on the user terminal 120 in real time, but also can monitor the position of a target displayed on the user terminal 120 in real time to grasp the exact position in advance and monitor the intruder's image .

The circulator 180 is additionally provided when the array antenna 140 is a transmitting / receiving array antenna 143.

The circulator 180 receives the impulse signal from the UWB signal generator 130 and transmits the impulse signal to the transmitting and receiving array antenna 143 and the received signal from the transmitting and receiving array antenna 143 to the mixer 160 .

2 is a flowchart of a security monitoring method using an ultra-wideband wall penetration radar and an image sensor according to the present invention.

Referring to FIG. 2, first, the array antenna 140 may be embedded in a wall, or may be configured to be installed on the opposite side of the monitoring region with a wall interposed therebetween.

The ultra wideband signal generator 130 generates an impulse signal (S101).

Next, the impulse signal generated in the invitation signal generator 130 is radiated through the array antenna 140, and the received signal is received through the array antenna 140 (S102).

Here, the array antenna 140 includes a transmitting array antenna 141 for transmitting an impulse signal and a receiving array antenna 142 for receiving a received signal, or an array antenna 142 for receiving an impulse signal and receiving an impulse signal. And an array antenna 143 for both transmission and reception.

In this case, when the array antenna 140 comprises an array antenna 143 for transmitting and receiving an impulse signal and a receiving signal, a circulator 180 receives an impulse signal from the UWB signal generator 130, Receiving array antenna 143 and receives the received signal from the transmitting / receiving array antenna 1243 and transmits the received signal to the mixer 160. The mixer 160 receives the received signal,

Next, the mixer 160 calculates a difference signal between the received signal previously received and the background data in a state in which there is no target in the surveillance region previously stored in the data DB 150 (S103).

Next, the controller 170 senses the target using the difference signal calculated in the mixer 160 (S104).

Next, the controller 170 generates a target detection signal and transmits it to the user terminal 120 (S105).

Next, the controller 170 controls the ultra-wideband signal generator 130 to perform beamforming on the previously detected target and determine the position of the target (S106).

Next, the controller 170 transmits the previously determined position to the user terminal 120 (S107).

Next, under the control of the controller 170, the CCTV camera 110 captures the target of the previously determined position (S108).

Next, the controller 170 transmits the photographed image to the user terminal 120 (S109). The user terminal 120 receives the image and displays it in real time.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims There will be.

110: CCTV camera
120: User terminal
130: Ultra-wideband signal generator
140: Array antenna
141: transmitting array antenna
142: receiving array antenna
143: Combined array antenna for transmitting and receiving
150: Data DB
160: Mixer
170:
180: circulator

Claims (9)

CCTV (closed circuit TV) camera;
A user terminal;
An ultra wideband signal generator for generating an impulse signal;
An array antenna for transmitting the generated impulse signal and receiving a received signal;
A data DB for storing background data in a state where there is no target in the surveillance area;
A mixer for calculating a difference signal between the stored background data and a reception signal of the array antenna;
Detecting the target using the calculated difference signal, generating a target detection signal, transmitting the target detection signal to the user terminal, discriminating the position of the detected target through beamforming by controlling the UWB signal generator, And a controller for controlling the CCTV camera to photograph the target at the identified position and transmitting the captured image to the user terminal, and an image sensor A security surveillance system. The antenna according to claim 1,
Wherein the wall is embedded in the wall or is installed on the opposite side of the surveillance area with the wall interposed therebetween, and a security surveillance system utilizing the ultra wideband wall penetration radar and the image sensor. The antenna according to claim 2,
An array antenna for transmitting the generated impulse signal, and a reception array antenna for receiving the reception signal. The surveillance system using the ultra wideband wall transmission radar and the image sensor. The antenna according to claim 2,
And a transmitting / receiving array antenna for transmitting the generated impulse signal and receiving a reception signal. The surveillance system utilizing the ultra-wideband wall penetrating radar and the image sensor. The method of claim 3,
Reception antenna array for receiving and transmitting an impulse signal from the UWB signal generator to the transmitting and receiving array antennas when the array antenna is an array antenna for both transmitting and receiving antennas, circulator, and a surveillance system utilizing the ultra-wideband wall-penetrating radar and the image sensor. A security monitoring method for a surveillance security monitoring system using an ultra wideband wall penetration radar,
Generating an impulse signal by an ultra wideband signal generator;
Receiving the generated impulse signal through an array antenna and receiving the received signal through the array antenna;
Calculating a difference signal between the received signal and the background data in the absence of a target in the surveillance region previously stored in the data DB;
The controller detecting the target using the calculated difference signal;
The controller generating and transmitting a target sensing signal to a user terminal;
The controller controlling the UWB signal generator to perform beamforming on the detected target and determining a position of the target;
The controller transmitting the determined position to the user terminal;
Capturing a target of the determined position by a CCTV camera under the control of the controller;
Wherein the controller transmits the photographed image to the user terminal. The security monitoring method using the ultra wideband wall penetration radar and the image sensor. 7. The antenna according to claim 6,
Wherein the wall is embedded in the wall or is installed on the opposite side of the surveillance area with the wall interposed therebetween. 8. The antenna according to claim 7,
And an array antenna for transmitting the impulse signal and an array antenna for receiving the received signal or a transmitting and receiving array antenna for transmitting the impulse signal and receiving the received signal, Surveillance method using ultra - wideband wall penetration radar and image sensor. 9. The method of claim 8, wherein the generated impulse signals are radiated through an array antenna,
In the case where the array antenna is composed of a transmitting / receiving array antenna for transmitting the impulse signal and receiving the receiving signal, the circulator receives the impulse signal from the UWB signal generator and transmits the impulse signal to the transmitting / receiving array antenna And receiving the received signal from the transmitting and receiving array antenna and transmitting the receiving signal to the mixer.

Images