KR20080075982A - Ultrasonic security device using time reversal mirror method - Google Patents

Ultrasonic security device using time reversal mirror method Download PDF

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Publication number
KR20080075982A
KR20080075982A KR1020070015280A KR20070015280A KR20080075982A KR 20080075982 A KR20080075982 A KR 20080075982A KR 1020070015280 A KR1020070015280 A KR 1020070015280A KR 20070015280 A KR20070015280 A KR 20070015280A KR 20080075982 A KR20080075982 A KR 20080075982A
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KR
South Korea
Prior art keywords
ultrasonic
security device
detection
time reversal
ultrasonic wave
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KR1020070015280A
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Korean (ko)
Inventor
박승수
재 수 김
영 석 오
영 호 최
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소나테크 주식회사
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Priority to KR1020070015280A priority Critical patent/KR20080075982A/en
Publication of KR20080075982A publication Critical patent/KR20080075982A/en

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/028—Communication between parent and child units via remote transmission means, e.g. satellite network
    • G08B21/0283—Communication between parent and child units via remote transmission means, e.g. satellite network via a telephone network, e.g. cellular GSM
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

An ultrasonic security device using a time reversal mirror method is provided to accurately detect an intruder or an invader by replacing heat and light with a small-loss ultrasonic wave. An ultrasonic security device(3) transmits an ultrasonic wave from an observing site(1) for a few tens of times per one second. The ultrasonic wave is reflected from various obstacles(2) and received back in the ultrasonic security device. When an intruder is detected, a transfer path for the ultrasonic wave is distorted. The ultrasonic security device detects the distorted transfer path and notifies the result to a security guard(6) and a police station(7).

Description

시계열반전거울 기법을 이용한 초음파보안장치{Ultrasonic security device using Time Reversal Mirror Method}Ultrasonic Security Device Using Time Reversal Mirror Method

도1은 본 발명의 일실시예의 사시도1 is a perspective view of one embodiment of the present invention

도2는 본 발명의 초음파센서의 작동블록도Figure 2 is an operation block diagram of the ultrasonic sensor of the present invention

도3은 본 발명의 초음파보안장치도Figure 3 is an ultrasonic security device of the present invention

도4는 종래의 일부보안장치도4 is a partial security device of the prior art

(도면의 주요 부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

1: 감시장소 2: 장애물1: watch station 2: obstacle

3: 초음파보안장치 4: 중계 타워3: ultrasonic security device 4: relay tower

5: 개인휴대폰단말기 6: 경비원(경비업체)5: Personal cell phone terminal 6: Security guard (security company)

7: 경찰서 8: 송신 파형7: police station 8: transmit waveform

9: 송신 파형 10: 증폭 컨트롤부9: Transmission waveform 10: Amplification control part

11: 베플 12: 초음파수신센서11: Baffle 12: Ultrasonic Reception Sensor

13: 초음파송신센서13: Ultrasonic Transmitter

본 발명은 초음파를 이용하여 침입을 감시하며, 이상이 발생할 경우 이를 무선통신을 통해 개인 휴대폰 단말기나 경비원 또는 경찰서에 침입경보를 송신할 수 있도록 한 시계열반전거울 기법(Time Reversal Mirror Method)을 이용한 초음파보안장치에 관한 것이다.The present invention monitors an intrusion using ultrasonic waves, and when an abnormality occurs, ultrasonic waves using a time reversal mirror method for transmitting an intrusion alarm to a personal mobile phone terminal, a security guard or a police station through wireless communication. It relates to a security device.

기존의 열감지기(Temperature Heat Detector), 감시카메라(CCTV), 적외선감지기(Infrared Detector) 등의 보안장치는 탐지매체의 특성으로 인한 탐지구역 협소, 탐지사각 존재, 탐지회피 방법 존재 등과 같이 많은 문제점들을 가지고 있다.Conventional security devices such as Temperature Heat Detector, CCTV, and Infrared Detector have many problems such as narrow detection zone due to the characteristics of detection medium, presence of detection square, and detection avoidance method. Have.

도4는 기존보안장치의 탐지사각에 대한 예시도로서 보안장치 하부(14), 기둥 후면(15)(16), 벽 후면(17)에 음역구역으로 인한 탐지사각이 존재하지만 도1은 본 발명의 초음파보안장치는 다중경사반사(Multi-path reflection)로 인해 탐사사각이 존재하지 않는다.Figure 4 is an exemplary view of the detection angle of the existing security device, the detection angle due to the transliteration zone is present in the lower part of the security device 14, the rear of the pillars 15, 16, the wall rear 17, Figure 1 is the present invention Ultrasonic security devices do not have an exploration angle due to multi-path reflections.

기존의 보안장치별 문제점을 좀 더 상세히 설명하자면, To describe in more detail the problems of each security device,

열감지기의 경우 열에너지의 특성상 공간 확보에 따른 높은 에너지감소로 인해 탐지범위가 협소하며, 방열슈트, 젖은 휴지 등을 이용하여 열을 차단하는 회피 가 가능하다는 문제점이 있고In the case of the heat detector, due to the nature of the thermal energy, the detection range is narrowed due to the high energy reduction due to the securing of space, and there is a problem that it is possible to avoid the heat by using a heat radiation suit, a wet tissue, etc.

또한, 빛을 이용하는 감시카메라와 적외선감지기의 경우 빛의 높은 직진성으로 인한 음역구역의 문제로 인해 탐지범위가 협소하며, 탐지사각이 발생하고 영상대체 등의 탐지회피 가능하다는 문제점이 따르게 되었다.In addition, in the case of surveillance cameras and infrared sensors using light, the detection range is narrow due to the problem of the region of sound region due to the high linearity of the light, and the detection range is generated and the detection of the image replacement is possible.

본 발명은 상기와 같은 문제점을 해결하기 위하여The present invention to solve the above problems

탐지매체를 거리에 따른 손실이 많은 열과 빛에서 비교적 손실이 적은 초음파로 대체하고, 침입자로부터 직접적인 반사만을 고려하던 기존의 방식을 음파의 회절, 산란, 반사특성 자체를 이용하는 시계열반전거울 기법을 적용하여 탐지범위와 탐지 반응성을 높여 회피수단이 전무할 수 있도록 하였다.By replacing the detection medium with relatively low loss of ultrasonic waves in the heat and light over distance, and using the time-series reversal mirror technique that uses the diffraction, scattering, and reflection characteristics of sound waves instead of the conventional method that only considers direct reflection from intruders The detection range and detection responsiveness were increased so that no evasion means existed.

또한, 무선통신기술을 적용하여 개인 및 경찰 등으로 신속하게 전송하도록 하여 침입에 대한 신속대응이 가능하도록 하였다.In addition, by applying wireless communication technology to be quickly sent to individuals and police, etc. to enable rapid response to intrusion.

본 발명에 사용되는 탐지기법인 시계열반전거울 기법(Time Reversal Mirror Method)은 음파의 가역성 원리를 이용한 기술이다.The time reversal mirror method, which is a detection technique used in the present invention, is a technique using a reversible principle of sound waves.

송신센서에서 초음파를 송신하고, 송신된 초음파는 다양한 반사경로를 통해 수신센서로 수신된다.Ultrasonic waves are transmitted from the transmitting sensor, and the transmitted ultrasonic waves are received by the receiving sensor through various reflection paths.

이렇게 수신된 신호는 초음파의 전달 경로정보를 내포하고 있기 때문에 시간상의 신호를 반전시켜 재송신하게 되면, 처음 초음파가 발신되었던 위치로 초음파가 도2의 송신 파형(8)과 같이 접속하게 된다.Since the received signal contains transmission path information of ultrasonic waves, when the signal in time is inverted and retransmitted, the ultrasonic waves are connected to the position where the ultrasonic waves were first transmitted as shown in the transmission waveform 8 of FIG.

상기와 같이 진행되는 일련의 과정에서 침입이 발생하게 될 경우 초음파의 전달 경로가 달라져 초음파의 도2의 송신 파형(9)과 같이 접속이 이루어지지 않게 되고 이를 통해 침입 여부를 판단할 수 있는 시계열반전거울 기법을 이용한 초음파보안장치를 제공할 수 있도록 한 것에 그 목적이 있다.When intrusion occurs in a series of processes as described above, the transmission path of the ultrasonic waves is changed so that the connection is not made as shown in the transmission waveform 9 of FIG. The purpose is to provide an ultrasonic security device using a mirror technique.

이하 본 발명을 바람직한 일실시예의 첨부도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings of the preferred embodiment of the present invention.

도1은 본 발명의 일실시예의 사시도로서1 is a perspective view of one embodiment of the present invention;

감시장소(1)에는 초음파보안장치(3)로부터 초당 수십 번의 초음파가 송신되고 있고 송신된 초음파는 각종 장애물(2)들에 반사되어 다시 초음파보안장치(3)로 수신 된다.Ultrasonic waves of several tens of times per second are transmitted from the ultrasonic security device 3 to the monitoring place 1, and the transmitted ultrasonic waves are reflected by various obstacles 2 and received by the ultrasonic security device 3 again.

만약 침입이 발생할 경우 침입자로 인해 초음파의 전달경로가 왜곡되게 되고, 이는 도2와 같이 수신 파형의 변화로 감지 여부를 판단하여, 침입을 판단하였을 경우 이를 무선통신을 통해 개인휴대폰단말기(5)와 경비인(6) 및 경찰서(7)로 이를 통보한다.If intrusion occurs, the path of transmission of the ultrasonic wave is distorted due to the intruder, which determines whether it is detected by the change of the received waveform as shown in FIG. The guards (6) and the police station (7) are notified of this.

도3은 본 발명의 초음파보안장치도로서Figure 3 is an ultrasonic security device of the present invention

증폭 컨트롤부(10)와 초음파송신센서(13) 1개 및 다수의 초음파수신센서(12), 송수신 센서 간의 간섭을 억제하는 베플(11)로 구성된다.Amplification control unit 10 and one ultrasonic transmitting sensor 13 and a plurality of ultrasonic receiving sensor 12, the baffle 11 to suppress the interference between the transmission and reception sensor.

초음파 송수신센서는 사람의 가청주파수 대역인 20kHz이상의 고주파를 사용하며, 사용자 및 침입자가 청취할 수 없도록 하며, 증폭은 송신 및 수신 모두 80dB까지 증폭이 가능하게 하여, 최대한의 다중반사까지 고려할 수 있도록 한다.Ultrasonic transceiving sensor uses high frequency of 20kHz or higher which is human audible frequency band, so that users and intruders can't hear, and amplification can amplify up to 80dB for both transmission and reception, so that maximum reflection can be considered. .

그리고 송신과 수신 초음파센서의 간섭을 억제할 수 있도록 센서 사이에 흡음효과가 있는 베플(11)을 삽입하여 오동작 및 탐지효율을 향상시킬 수 있도록 하였다.In addition, a baffle 11 having a sound absorbing effect is inserted between the sensors so as to suppress interference between the transmitting and receiving ultrasonic sensors, thereby improving malfunction and detection efficiency.

이와 같은 본 발명은 탐지매체를 거리에 따른 손실이 많은 열과 빛에서 비교 적 손실이 적은 초음파로 대체하고, 침입자로부터 직접적인 반사만을 고려하던 기존의 방식을 음파의 회절, 산란, 반사특성 자체를 이용하는 시계열반전거울 기법을 적용함과 아울러 무선통신기술을 적용하여 기존의 보안장치들이 탐지매체(열, 빛)의 물리적 한계성과 탐지방법의 문제로 인해 도저히 만족시킬 수 없었던The present invention replaces the detection medium with ultrasonic waves having a relatively low loss in heat and light with a large distance, and uses the diffraction, scattering, and reflection characteristics of sound waves instead of the conventional methods that consider only direct reflection from intruders. In addition to applying the inverted mirror technique and wireless communication technology, existing security devices could not be satisfied due to the physical limitations of the detection medium (heat and light) and the problem of the detection method.

◎회피장치에 대한 높은 대응성◎ High responsiveness to evasion device

◎침입에 대한 높은 탐지 반응성High detection responsiveness to intrusion

◎광범위 탐지◎ wide range detection

◎낮은 오작동 확률◎ Low malfunction probability

◎탐지 후 신속한 대응성◎ Responsiveness after detection

등의 상기의 고성능, 고효율의 조건을 본 발명은 만족시킬 수 있는 효과가 있다.The present invention has the effect of satisfying the above conditions of high performance and high efficiency.

Claims (1)

감시장소(1)에는 초음파보안장치(3)로부터 초당 수십 번의 초음파가 송신하고 송신된 초음파는 각종 장애물(2)들에 반사되어 다시 초음파보안장치로 수신되며, 침입이 발생할 경우 침입자로 인해 초음파의 전달경로가 왜곡되게 되어 수신 파형의 변화를 유발 이를 통해 침입을 판단하여 무선통신을 통해 개인휴대폰단말기(5)와 경비인(6) 및 경찰서(7)로 통보토록 한 것을 특징으로 한 시계열반전거울 기법을 이용한 초음파경보장치.The ultrasonic monitoring device 1 transmits dozens of ultrasonic waves per second from the ultrasonic security device 3, and the transmitted ultrasonic waves are reflected by various obstacles 2 and received by the ultrasonic security device again. The transmission path is distorted, causing a change in the received waveform, thereby determining the intrusion, and informing the mobile phone terminal (5), the guard (6) and the police station (7) through wireless communication. Ultrasonic alarm device using the technique.
KR1020070015280A 2007-02-14 2007-02-14 Ultrasonic security device using time reversal mirror method KR20080075982A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1139574A (en) * 1997-07-15 1999-02-12 Opt Kk Combined sensor system
JP2000098053A (en) * 1998-09-18 2000-04-07 Chino Corp Detection device
JP2001229471A (en) * 2000-02-18 2001-08-24 Hyper Electronics:Kk Trespass detecting device
JP2004206279A (en) * 2002-12-24 2004-07-22 Sakae Seisakusho:Kk Home crime prevention equipment
KR20050048810A (en) * 2003-11-20 2005-05-25 (주)태성엠아이에스 Anti-masking detector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1139574A (en) * 1997-07-15 1999-02-12 Opt Kk Combined sensor system
JP2000098053A (en) * 1998-09-18 2000-04-07 Chino Corp Detection device
JP2001229471A (en) * 2000-02-18 2001-08-24 Hyper Electronics:Kk Trespass detecting device
JP2004206279A (en) * 2002-12-24 2004-07-22 Sakae Seisakusho:Kk Home crime prevention equipment
KR20050048810A (en) * 2003-11-20 2005-05-25 (주)태성엠아이에스 Anti-masking detector

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