KR200393145Y1 - Video Transmitter & Receiver with Power Supply - Google Patents

Video Transmitter & Receiver with Power Supply Download PDF

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Publication number
KR200393145Y1
KR200393145Y1 KR20-2005-0009622U KR20050009622U KR200393145Y1 KR 200393145 Y1 KR200393145 Y1 KR 200393145Y1 KR 20050009622 U KR20050009622 U KR 20050009622U KR 200393145 Y1 KR200393145 Y1 KR 200393145Y1
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South Korea
Prior art keywords
power
signal
camera
video signal
converter
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KR20-2005-0009622U
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Korean (ko)
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나수환
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삼성씨씨티비서비스(주)
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Priority to KR20-2005-0009622U priority Critical patent/KR200393145Y1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable
    • H04N7/102—Circuits therefor, e.g. noise reducers, equalisers, amplifiers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1895—Particular features or applications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/81—Camera processing pipelines; Components thereof for suppressing or minimising disturbance in the image signal generation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

본 고안은 보안, 감시용 폐쇄회로 카메라의 전원과 영상신호를 한 개의 신호선(동축케이블)에 중첩하여 전송하고 동시에 노이즈제거를 할 수 있다.The present invention superimposes the power and video signal of a closed circuit camera for security and surveillance on one signal line (coaxial cable) and transmits noise at the same time.

CCTV카메라의 설치 및 시공 시 전원공사를 할 필요가 없고, 원거리 전송이 가능하여 카메라 영상신호를 원거리 전송할 필요가 있을 때 신호선(동축케이블)을 달리 선정하지 않아도 되므로, 공사기간 단축, 공사원가 절감의 목적을 거둘 수 있다.When installing and constructing a CCTV camera, there is no need for power supply work, and since it is possible to transmit remotely, it is not necessary to select a signal line (coaxial cable) when remotely transmitting camera video signals. You can reap the purpose.

본 고안의 구성은 카메라의 영상신호를 변조하고 카메라전원을 공급해주는 송신1단과 영상신호를 본래의 신호로 복조하고 카메라공급전원을 제어하는 수신1단으로 구성되어있다.The construction of the present invention consists of a first stage for modulating the video signal of the camera and supplying camera power, and a first stage for demodulating the video signal into an original signal and controlling the camera power supply.

Description

폐쇄회로 카메라용 전원중첩 영상 원거리 전송장치{Video Transmitter ＆ Receiver with Power Supply}Power Overlapping Video Transmission System for Closed Circuit Cameras {Video Transmitter & Receiver with Power Supply}

보다 지능화, 첨단화되는 범죄를 예방해야하는 방범과 감시의 문제는 더욱 더 중요하게 되었으며 이로 인해 보안 감시용 CCTV의 설치는 날로 증가하는 추세이다.The issue of crime prevention and surveillance, which must prevent more intelligent and advanced crimes, becomes more and more important, and the installation of CCTV for security surveillance is increasing day by day.

CCTV 시스템의 구조를 보면 보통은 촬상부와 전송부 그리고 표시장치로 구분되는데 여기서 촬상부는 카메라의 영상을 촬영하고 이를 전기적 신호로 해석하여 전송부로 전송하게 된다. 전송부는 무선전송시스템과 유선전송시스템으로 구분된다. 일반적으로 사용하는 유선전송시스템은 동축 케이블을 사용하여 카메라의 영상을 표시장치로 전송하게 된다. 무선전송시스템은 고유의 채널을 가지고 표시장치로 전송하게 된다. 표시장치에는 촬상부에서 촬영한 피사체를 표시하는 모니터장치 등으로서 저장장치와 카메라 제어장치 등을 포함하게 된다.In general, the CCTV system is divided into an imaging unit, a transmission unit, and a display device, where the imaging unit captures an image of a camera and interprets it as an electrical signal and transmits it to the transmission unit. The transmitter is divided into a wireless transmission system and a wired transmission system. In general, a wired transmission system uses a coaxial cable to transmit an image of a camera to a display device. The wireless transmission system has a unique channel to transmit to the display device. The display device includes a storage device and a camera control device as a monitor device for displaying a subject photographed by the imaging unit.

원격지에 있는 촬상부인 감시카메라에서 촬영된 영상신호(BASEBAND)를 전송하는 유선전송시스템에서 영상신호를 원거리까지 전송할 때 노이즈 발생, 화질저하 등이 발생하고, 설치 및 시공 시 촬상부인 감시카메라에 전원 공사를 해야 하는 점 등이 문제가 되었다.In the wired transmission system that transmits the video signal (BASEBAND) taken from the surveillance camera, which is a remote imaging unit, noise occurs and image quality decreases when transmitting the video signal to a long distance. The problem was that I had to.

따라서 이 문제점을 해결하기 위해 본 고안은 하나의 신호선(동축 케이블)에 카메라 구동 전원 및 영상신호를 중첩해서 보낼 수 있도록 하여, 카메라의 영상신호를 원거리까지 별도의 카메라 전원 공사없이, 또한 화질저하 없이 전송할 수 있도록 하는데 그 목적이 있다.Therefore, in order to solve this problem, the present invention allows the camera driving power and video signals to be superimposed on one signal line (coaxial cable), so that the video signal of the camera can be sent to a long distance without additional camera power construction and without deterioration in image quality. Its purpose is to enable transmission.

본 고안을 CCTV의 일부분이기 때문에 종래의 CCTV 시스템을 개략적으로 소개하고 본 고안이 장착된 시스템을 기술하고자 한다.Since the present invention is part of CCTV, we will introduce a conventional CCTV system and describe a system equipped with the present invention.

일반적으로 CCTV는 촬상부(100)와 전송부(200) 그리고 표시장치(300)로 구성되어 있다. 촬상부(100)는 일반적으로 카메라를 칭하며 전송부(200)는 영상신호를 표시장치(300)까지 송신하는 유선 또는 무선을 칭한다. 표시장치(300)은 영상신호를 사람의 눈으로 볼 수 있게 만드는 장치를 칭한다.In general, the CCTV is composed of the imaging unit 100, the transmission unit 200 and the display device 300. The imaging unit 100 generally refers to a camera, and the transmission unit 200 refers to a wired or wireless transmission of an image signal to the display device 300. The display device 300 refers to a device that makes an image signal visible to a human eye.

도1은 일반적인 CCTV 설치 시스템으로써 촬상부(100)는 전원 공급장치(400)에 의해 전원을 공급받아 피사체를 촬영하게 되고 전송부는 유선 또는 무선으로 송수신단을 사용해서 촬상부(100)에서 촬영된 영상신호를 전송하게 되며 송신된 영상정보는 표시 장치(300)를 사용해서 표시하게 된다.1 is a general CCTV installation system, the image pickup unit 100 is powered by the power supply unit 400 to shoot the subject and the transmission unit is taken by the image pickup unit 100 using a transmitting and receiving terminal by wire or wireless The video signal is transmitted and the transmitted video information is displayed using the display device 300.

도2는 본 고안이 장착된 CCTV시스템으로써 피사체를 촬영하는 촬상부(100)에 별도의 전원 공급장치 없이 전원중첩영상송신장치(500)에 의해 전원을 공급받아 피사체를 촬영하게 되고 촬영된 영상신호는 전원중첩영상송신장치(500)에 의해 변조되어 수신장치로 송신 된다. 송신된 영상신호는 전원중첩영상수신장치(600)에 의해 복조되어 표시장치(300)에 보내진다.Figure 2 is a CCTV system equipped with the subject innovation is taken by the power superimposed image transmitter 500 without a separate power supply to the image pickup unit 100 for shooting the subject to shoot the subject and the captured image signal Is modulated by the power superimposed image transmitting apparatus 500 and transmitted to the receiving apparatus. The transmitted video signal is demodulated by the power superimposed video receiver 600 and sent to the display device 300.

본 고안을 기존 CCTV시스템과 비교하여 상세히 살펴보면 촬상부(100)에 전원을 공급하기 위해서는 전원중첩영상송신장치(500)을 촬상부(100)에 설치하고 수신측인 전원중첩영상수신장치(600)의 Adaptor(700)에 AC전원을 공급함으로써 전원중첩영상송신장치(500)가 동작 후 촬상부(100)에 전원을 공급하게 된다. 촬상부(100)에 전원을 공급함으로써 피사체를 촬영하게 되고 촬영된 영상신호는 전원중첩영상송신장치(500)의 MODULATOR(510)에 의해 변조되어 증폭기(511)을 거쳐 유선으로 송신되어진다. 송신된 영상신호는 전원중첩영상수신장치(600)의 DE_MODULATOR(610)에 의해 복조되어 표시장치(300)에 보내어진다.Looking at the present invention in detail compared to the existing CCTV system in order to supply power to the imaging unit 100, the power superimposed image transmitting apparatus 500 is installed in the imaging unit 100 and the receiving power superimposed image receiving apparatus 600 By supplying AC power to the adapter 700 of the power superimposed image transmitter 500 to supply power to the imaging unit 100 after operation. The subject is photographed by supplying power to the imaging unit 100, and the photographed image signal is modulated by the modulator 510 of the power superimposed image transmitter 500 and transmitted via wire through the amplifier 511. The transmitted video signal is demodulated by the DE_MODULATOR 610 of the power superimposed video receiver 600 and sent to the display device 300.

도3은 본 고안 장치의 전원중첩영상송신장치(500)을 상세히 도식화하였다. 촬상부에서 촬영한 영상신호를 입력 단(513)에 입력하고 변조기(510)을 통하여 변조된 신호는 증폭기(511)에서 증폭하여 출력단(515)으로 송신된다. 촬상부(100) 전원은 출력단(515)로 입력되어 CONVERTER(512)에 의해 공급된다.3 is a detailed diagram of the power overlapping image transmitting apparatus 500 of the present invention. The image signal captured by the image pickup unit is input to the input terminal 513, and the signal modulated by the modulator 510 is amplified by the amplifier 511 and transmitted to the output terminal 515. Power of the imaging unit 100 is input to the output terminal 515 and supplied by the CONVERTER 512.

도4는 도3의 송신신호를 받는 전원중첩영상수신장치(600)로 CONVERTER(612)에 의해 전원공급을 받는 복조기(610)는 변조 신호 입력 단(611)에서 수신된 변조신호를 복조화하여 영상신호를 출력단(614)에 의해 표시장치(300)로 송신된다. 촬상부(100)에 전원을 공급하기위해 전원입력 단(613)으로 공급하게 되고, 공급된 전원은 변조 신호 입력 단(611)을 통하여 전송부(200)로 송신되는 전원중첩영상수신장치이다.4 is a power superimposed image receiving apparatus 600 receiving the transmission signal of FIG. 3, and a demodulator 610 powered by a CONVERTER 612 demodulates a modulation signal received at a modulation signal input terminal 611. The video signal is transmitted to the display device 300 by the output terminal 614. The power is supplied to the power input terminal 613 to supply power to the imaging unit 100, and the supplied power is a power superimposed image receiving apparatus transmitted to the transmission unit 200 through the modulation signal input terminal 611.

본 고안의 설치위치는 촬상부(100)인 감시카메라에 전원중첩영상송신장치(500)가 설치되며, 표시장치(300)에 전원중첩영상수신장치(600)가 설치된다.In the installation position of the present invention, a power superimposed image transmitter 500 is installed in a surveillance camera, which is an imaging unit 100, and a power superimposed image receiver 600 is installed in a display device 300.

이상과 같이 본 고안은 카메라 설치 시 별도의 전원공사가 필요없으므로 工期의 단축 및 생산성향상의 효과가 있으며, 영상신호를 화질저하없이 遠거리까지 전송이 가능하여 별도의 동축케이블을 설계할 필요가 없어 비용 절감의 효과를 거둘 수 있다.As described above, this design does not require a separate power supply for the installation of the camera, so it has the effect of shortening the workmanship and improving productivity, and it is not necessary to design a separate coaxial cable because the video signal can be transmitted to a short distance without degrading the picture quality. Cost savings can be achieved.

도1은 일반적인 CCTV 설치 형태를 그린 구성도1 is a schematic diagram showing a typical CCTV installation form

도2는 본 고안이 장착된 CCTV 시스템의 기본 형태를 그린 구성도Figure 2 is a schematic diagram showing the basic form of the CCTV system equipped with the subject innovation

도3은 본 고안의 폐쇄회로 카메라용 전원중첩영상 송신기 내부 구성도Figure 3 is a block diagram of the power nested image transmitter for a closed circuit camera of the present invention

도4는 본 고안의 폐쇄회로 카메라용 전원중첩영상 수신기 내부 구성도Figure 4 is a block diagram of the power nested image receiver for a closed circuit camera of the present invention

*도면의 주요 부분에 대한 부호설명** Description of Signs of Major Parts of Drawings *

100: 폐쇄회로 카메라(감시카메라)100: closed circuit camera (surveillance camera)

110: 폐쇄회로 카메라용 전원 아답터110: power adapter for a closed circuit camera

200: 동축케이블200: coaxial cable

300: 표시장치(모니터)300: display device (monitor)

500: 폐쇄회로 카메라용 전원중첩영상송신장치(MODULATOR)500: Power superimposed video transmitter (MODULATOR) for closed circuit camera

600: 폐쇄회로 카메라용 전원중첩영상수신장치(DE_MODULATOR)600: Superimposed image receiving device for closed circuit camera (DE_MODULATOR)

700: 폐쇄회로 카메라용 전원중첩 영상 원거리 전송장치 아답터700: Power superimposition video remote transmitter adapter for closed circuit camera

Claims (3)

영상신호 변조 및 변조신호에 중첩되어 송전된 전원을 분리하여 촬상부에 공급하는 전원중첩영상전송송신장치;A power superimposed image transmission and transmission device for separating a power supply superimposed on a video signal modulation and a modulation signal and supplying the power to the imaging unit; 상기 송신장치에서 전송된 변조신호를 복조하고 송신기 측으로 송전할 전원을 중첩시키는 전원중첩영상수신장치;A power superimposed image receiving device for demodulating the modulated signal transmitted from the transmitting device and superimposing power to be transmitted to the transmitter; 화질 저하없이 10MHz 광대역 영상신호 및 불특정 폐쇄회로 카메라용 전원을 하나의 동축케이블의 선로를 통하여 원거리(1km내,외) 송.수신하는 것을 특징으로 하는 폐쇄회로 카메라용 전원중첩 영상 원거리 전송장치.A power superimposition video transmission device for closed circuit cameras, characterized in that a 10MHz wideband video signal and an unspecified closed circuit camera power are transmitted and received at a distance (within 1 km or more) through a single coaxial cable line without deterioration of image quality. 제 1항에 있어서The method of claim 1 상기 전원중첩영상전송송신장치는 영상신호를 변조시키는 변조부와 중첩된 높은 전압을 분리시키고 DC/DC Converter의 스위칭 Nosie가 변조신호에 영향을 주지 않도록 설계된 Filter부를 포함하며; The power superimposed image transmission transmitting device includes a filter unit designed to separate a high voltage superimposed with a modulator for modulating a video signal and to prevent the switching Nosie of the DC / DC converter from affecting the modulated signal; 상기 분리된 높은 전압을 낮은 전압으로 Converting 할 경우 발생하는 열 문제를 해결하면서 효율을 극대화시키고 또한 불특정 폐쇄회로 카메라에 전원을 공급가능하게 하는 DC/DC Converter부를 포함하며;A DC / DC converter unit for maximizing efficiency while supplying power to an unspecified closed-circuit camera while solving the heat problem generated when converting the separated high voltage into a low voltage; 상기 DC/DC Converter의 2차측 스위칭 Noise를 제거하는 FILTER부를 포함하며,It includes a filter unit for removing the secondary switching noise of the DC / DC converter, 상기 변조된 영상신호를 증폭시켜 원거리까지 전송 가능하게한 증폭부를 포함하는 것을 특징으로 하는 전원중첩영상전송송신장치.And amplifying unit configured to amplify the modulated video signal and to transmit the modulated video signal to a long distance. 제 1항에 있어서The method of claim 1 상기 전원중첩영상수신장치는 수신되는 변조신호와 높은 전압의 전원을 중첩시키며 DC/DC Converter의 스위칭 Noise를 제거하는 Filter부를 포함하며 돌입전압방지 및 불평형 변조신호를 평형화 시키고 BALUN_ Transformer부를 더 포함하며;The power superimposed image receiving device includes a filter unit for superimposing a received modulation signal and a high voltage power supply and removing switching noise of the DC / DC converter, equilibrating an inrush voltage preventing and unbalanced modulation signal and further including a BALUN_ Transformer unit; 상기 중첩 전원을 Down 시키고 열 문제를 해결하며 효율을 극대화 시키고 복조기 전원까지 공급 가능하게하는 DC/DC Converter부를 또한 포함하며;It also includes a DC / DC Converter unit to turn down the overlapping power, solve the heat problem, maximize the efficiency and supply the demodulator power; 상기 DC/DC Converter의 2차 전압에 의한 스위칭 Noise가 복조신호에 영향을 주지 않도록 하는 Filter부을 포함하는 것을 특징으로 하는 전원중첩영상수신장치.And a filter unit to prevent the switching noise caused by the secondary voltage of the DC / DC converter from affecting the demodulated signal.
KR20-2005-0009622U 2005-04-08 2005-04-08 Video Transmitter & Receiver with Power Supply KR200393145Y1 (en)

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