KR101101779B1 - Lamp control system linked cctv camera - Google Patents

Abstract

PURPOSE: A light control system for interlocking with CCTV(Closed-Circuit Television) is provided to reduce power consumption by creating a lighting signal based on a shutter operation signal. CONSTITUTION: The microcomputer(140) of a main control unit(100) receives an operation signal, a lighting signal, and a sensitivity signal from a signal generation unit(120), an A/D(Analog and Digital) conversion unit(130), and a sensitivity information acquisition unit(150). The microcomputer creates the lighting signal. The microcomputer transmits a synchronization control signal based on a sensitivity signal to a signal delay unit(110). The lighting control unit(220) of a lighting apparatus(200) supplies external power to a lamp module(210) according to an input lighting signal.

Description

Closed Circuit Television Camera Interlocking Lighting Control System {Lamp control system linked CCTV camera}

The present invention relates to a closed circuit television camera-linked lighting control system for lighting the lighting device in accordance with the shutter exposure time for imaging in a closed circuit television camera.

In general, a closed-circuit television (CCTV) system for surveillance or security purposes is to take a picture of a surveillance area with a camera and transmit it to a video recording device (recorder) through a video transmission line of a predetermined length. It is configured to record an image or output it to a monitor, and it is applied in various ways such as parking control system, parking management system, road traffic condition monitoring system, and river level monitoring system.

In addition, as a lighting device that can illuminate the surveillance area when it is dark according to the illumination of the surveillance area, recently, an excellent LED (light emitting diode) is adopted in terms of low power consumption, long life and maintenance, and recently, Xen flash lamps are also used for this purpose. In this case, the LED may employ not only an LED for visible light but also an LED for infrared.

In such a closed circuit television system, the camera periodically opens and closes the shutter to receive light from the image pickup device when the shutter is opened, and scans the electric charge charged in the image pickup device when the shutter is closed to generate an electrical signal corresponding to the image. Get

Therefore, when shooting a camera, even if the light illuminates the surveillance area only when the shutter is opened, the captured image becomes the same. As a result, the amount of heat generated is also reduced to extend the life.

As a prior art for this purpose, there was a monitoring device for observing a license plate for a vehicle. The prior art is configured to operate the illuminator and the camera at the same time in the process of obtaining the image of the vehicle license plate, so that it is possible to reduce the power consumption even if a clear image is obtained by irradiating infrared light, which is a pulse of high-peak output.

However, the prior art is limited to a technique for obtaining a still image, and does not disclose a lighting control technique for capturing moving images required in a closed circuit television system.

As a technique applied to conventional video shooting, there is a surveillance camera having a pulsed infrared laser illuminator. In the related art, in order to synchronize the emission period of the laser diode with the shutter operation of the camera, when the periodic emission light of the laser diode is reflected back to the surveillance region, the reflected light is detected to extract and extract a clock. The clock is configured to operate the shutter of the camera.

However, the prior art has to install a light-sensitive continuous operation type m-PD (photo diode), which is the m-PD itself, which makes it difficult to obtain an accurate clock signal due to measurement errors and errors generated during clock extraction. In addition, it was difficult to adjust the clock signal to the light emission period due to the delay time required during the extraction of the clock signal. Moreover, the opening and closing operation period of the camera shutter is set for the captured image so that the laser diode When the light emission period is set, there is a problem in that an image of a desired quality cannot be obtained.

On the other hand, a plurality of lighting devices are installed in the area photographed by the camera, the prior art has a limitation that the plurality of lighting devices can be linked to the camera to control at the same time.

SUMMARY OF THE INVENTION An object of the present invention is to provide a closed circuit television camera-linked lighting control system which lights on the basis of a blinking shutter driving signal of a plurality of lighting apparatuses installed in a photographing zone, and can accurately match the lighting cycle to the shutter opening / closing cycle.

Another object of the present invention is to provide a closed circuit television camera-linked lighting control system that can detect a sensitivity signal obtained by the sensitivity information acquisition unit and adjust the lighting time and shutter exposure time accurately.

Another object of the present invention, when a plurality of cameras are installed in the same area, by having the camera control unit independently to control the shutter drive signal of each camera, the lighting signal synchronized with the shutter drive signal is also collectively It is to provide a closed circuit television camera-linked lighting control system that can be controlled to obtain the same shooting sensitivity signal with less power consumption.

The closed circuit television camera-linked lighting control system of the present invention is mounted to be interlocked with the closed circuit television system including the camera 10 and the image processing apparatus 20, and a plurality of cameras in the capturing area of the camera 10. In a closed circuit television camera-linked lighting control system for controlling the lighting of the lamp module 210 of the lighting device 200 installed in the lighting device 200, the shutter driving signal is input from the camera 10 to delay a predetermined time signal to delay the signal. An output signal delay unit 110; A signal generator 120 receiving a delayed shutter driving signal from the signal delay unit 110 and outputting an operation signal; An A / D converter 130 for receiving an illuminance signal and outputting the digital signal; A sensitivity information acquisition unit 150 for receiving a video signal from the camera 10 and outputting a sensitivity signal of the captured image; The signal generator 120, the A / D converter 130, and the sensitivity information acquirer 150 respectively receive an operation signal, an illuminance signal, and a sensitivity signal to discriminate between day and night to generate a lighting signal, and a shutter exposure time and A microcomputer 140 for transmitting a synchronization control signal based on a sensitivity signal to the signal delay unit 110 for synchronization of a lighting time point; And a short range communication module 160 which receives a lighting signal from the microcomputer 140 and transmits the lighting signal to the lighting apparatus 200 or receives the illumination signal from the lighting apparatus 200. Main control apparatus 100 comprising a; A short distance communication module 222 for detecting an illuminance in the photographing zone and generating an illuminance signal, receiving a lighting signal generated from the main controller 100, and transmitting the illuminance signal to the main controller 100. And a lamp module driver 221 configured to intermittently supply electricity supplied from the outside to the lamp module 210 according to a lighting signal input from the short range communication module 222; And a lamp module 210 flashing at a predetermined cycle by the lamp module driver 221. And a control unit.

The present invention can synchronize the shutter operation of the camera 10 by short-range communication with the flashing of the plurality of lighting apparatuses 200 installed in the imaging area together with the camera 10, and generate a lighting signal based on the shutter driving signal. Therefore, the lighting cycle can be precisely matched to the shutter opening / closing cycle, and the pulse width of the lighting signal corresponding to the lighting section can be accurately matched.

In addition, the present invention is obtained by the sensitivity information acquisition unit 150 even when the lighting time of the lighting device 200 and the opening time of the shutter of the camera 10 does not match when initially controlling the blinking of the lighting device 200. The sensitivity signal can be adjusted to precisely match the lighting time and the shutter exposure time.

In addition, the present invention, when a plurality of cameras 10 are installed in the same area, by having the camera 10 control unit independently to control the shutter drive signal of each camera 10, which is synchronized by the shutter drive signal The lighting signal is also controlled collectively, so that the same shooting sensitivity signal can be obtained with less power consumption.

1 is a block diagram of a closed circuit television camera-linked lighting control system according to an embodiment of the present invention.
2 is an exemplary diagram of a plurality of closed circuit television camera-linked lighting control system according to an embodiment of the present invention in an independent space.

Hereinafter, a closed circuit television camera-linked lighting control system according to an exemplary embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a closed circuit television camera-linked lighting control system according to an embodiment of the present invention.

According to FIG. 1, a closed circuit television camera-linked lighting control system according to an exemplary embodiment of the present invention may include an image processing apparatus configured to display or store a camera 10 and image information obtained from the camera 10 on a screen ( 20 and a lighting signal from the main controller 100 and the main controller 100 which are mounted on the camera 10 to generate a lighting signal of the lighting apparatus 200 in accordance with the exposure time of the shutter of the camera 10. It is configured to include a lighting device 200 that is provided to receive a predetermined period.

The camera 10 determines an opening / closing time of the imaging module 12 for converting light entering the lens into a video signal, which is an electrical signal using an imaging device, and the shutter for adjusting the amount of light of the imaging module 12. And a camera controller 11 which provides the main controller 100 or the image processing apparatus 20 with a video signal obtained from the imaging module 12 or an open / close signal of the shutter.

The imaging module 12 converts light entering the lens into a video signal, which is an electrical signal, using an imaging device, and is configured as a charge couple device (CCD) module or a complementary metal oxide semiconductor (CMOS) module. The imaging module 12 receives the light at the exposure duration of opening the shutter to charge the imaging device, and scans the charge charged in the imaging device at the shutter delay time when the shutter is closed and waits until the next shutter is opened. To generate a video signal. At this time, one frame image to be photographed is composed of even frames and odd frames, and the operation of opening and closing the shutters is performed to obtain even frames and odd frames, and thus, to obtain one frame image, Conference shutter exposure time and shutter delay time are required. Typically, 30 frames are required to realize a 1 second video. Therefore, it takes 1000 ms / (30 * 2) = 16.6 ms to acquire one even frame or odd frame, of which the shutter exposure time is The shutter delay time is 0.61ms and 15.99ms. The shutter exposure time and the shutter delay time are then determined by the camera controller 11 to be described below.

The camera controller 11 generates a shutter operation signal to determine an opening / closing time of the shutter, thereby adjusting the time for which the imaging module 12 is exposed to light, and providing the shutter operation signal to the main controller 100 to provide an illumination device ( The lighting signal of the 200 may be generated, and the video signal generated from the imaging module 12 may be transmitted to the image processing apparatus 20 or provided to the main controller 100 so that the lighting apparatus 200 is turned on and the shutter is exposed. Allow time to be synchronized.

Although the camera controller 11 is illustrated and described as being included in the camera 10 together with the imaging module 12, a plurality of cameras 10 may be installed in individual independent spaces separated by similar areas or walls. In this case, it may be configured as a separate control device for controlling the overall. In this case, the camera controller 11 generates the shutter driving signal of the imaging module 12 and transmits the shutter driving signal and the video signal captured by the imaging module 12 to the main controller 100 or transmits the video signal to the image processing apparatus ( 20 means a device which is displayed on the monitor 21 or controlled to be recorded on the recorder 22, and the camera 10 is a camera 10 control unit and an imaging module 12 rather than a single independent device. It should be interpreted in the sense as a camera 10 system composed of the back and the like.

The image processing apparatus 20 includes a monitor 21 for outputting an image received from the camera 10 on a screen and a recorder 22 for storing the image.

The main controller 100 receives the shutter driving signal and the video signal from the camera 10, receives the illumination signal from the illumination device 200 to be described below, and determines whether to generate a lighting signal from the illumination signal, and determines the shutter driving signal. A lighting signal of the lighting apparatus 200 is generated, and a sensitivity signal is obtained from the video signal so that the lighting signal and the shutter signal can be synchronized.

To this end, the main controller 100 receives a shutter driving signal of the camera 10 and delays a predetermined time signal to output a delayed signal, and a delayed shutter driving signal from the signal delaying unit 110. Signal generation unit 120 for receiving an input and outputting an operation signal, A / D converter 130 for receiving an illuminance signal and outputting it as a digital signal, and sensitivity of the captured image by receiving a video signal from the camera 10. The operation signal, illuminance signal, and sensitivity signal should be received from the sensitivity information acquisition unit 150, the signal generation unit 120, the A / D converter 130, and the sensitivity information acquisition unit 150 to output a signal, respectively. Inputs a lighting signal from the microcomputer 140 and the microcomputer 140 to transmit a synchronization control signal based on a sensitivity signal to the signal delay unit 110 for synchronizing the shutter exposure time and the lighting time. Receive and transmit to lighting device 200 Or it is configured to include a short-range communication module 160 receiving an illuminance signal from the illumination device 200. The

The signal delay unit 110 receives the shutter driving signal from the camera 10 control unit of the camera 10 and delays the predetermined time signal to provide the delayed signal to the signal generator 120.

In more detail, the signal delay unit 110 generates an operation signal from the signal generator 120 so that when the microcomputer 140 turns on the lighting apparatus 200 by the operation signal, the lighting apparatus 200 The shutter driving signal of the camera 10 is delayed so that the lighting timing of the camera 10 and the shutter opening time of the camera 10 coincide with each other. In other words, the signal delay unit 110, except for the signal delay unit 110 of the main control unit 100 and the lighting device 200, the delay time due to the characteristics of each element between the input and output of the signal is fixed In addition, the camera 10 also generates a certain delay time from the input of the shutter driving signal to the opening of the shutter, which is the final operation time of the camera 10 shutter and the illumination device 200. In order to synchronize the lighting time, the main control device 100 and the lighting device 200 are configured to set the starting point of operation.

Therefore, the signal delay unit 110 delays and outputs the input camera 10 shutter driving signal in order to synchronize the lighting time of the lighting apparatus 200 with the opening time of the shutter of the camera 10. In this case, the delay time Is determined by the synchronization determining means of the microcomputer 140.

The signal generator 120 receives the delayed shutter driving signal from the signal delay unit 110 and transmits an operation signal of each unit of the microcomputer 140 to the microcomputer 140. The generated signal may consist of a pulse wave or a square wave having a width of 0 to 10 ms.

The short-range communication module 160 is a configuration for transmitting a lighting signal generated by the microcomputer 140 to the lighting device 200 or receiving an illumination signal obtained from the illumination sensor 230 of the lighting device 200. Connected to the short-range communication module 222 of the device 200, various short-range communication methods such as using a wired communication line or a wireless communication method such as ZigBee communication, Bluetooth communication or UWB communication may be used, and the description of the present invention Does not specify the way.

The A / D converter 130 receives the analog illuminance signal transmitted to the short range communication module 160 from the short range communication module 160, converts the analog illuminance signal into a digital signal, and transmits the converted digital signal to the microcomputer 140.

The sensitivity information acquisition unit 150 acquires a sensitivity signal of an image captured by the image pickup device of the camera 10 from a video signal transmitted from the camera 10, and transmits the sensitivity signal to the microcomputer 140.

The sensitivity signal may be one in which the luminance and the signal level are varied depending on the amount of light incident on the image pickup device of the camera 10. The above-described signal level indicates the magnitude of an image signal according to the amount of light, for example, a voltage. It can be described as a level of magnitude, and the use of the characteristic that the voltage level decreases as the amount of light decreases.

The sensitivity signal of the video signal coincides with the lighting time of the lighting device 200 and the shutter opening time of the camera 10 when the lighting device 200 is turned on by the lighting signal generated by the microcomputer 140 to be described later. It is the basis for determining whether or not. That is, when the lighting time of the lighting device 200 and the shutter opening time of the camera 10 coincide with each other, the light emitted from the lighting device 200 is incident on the image pickup device of the camera 10, but the sensitivity signal of the video signal is high. This is because, if the above two viewpoints do not coincide, the sensitivity signal of the video signal is low.

The microcomputer 140 includes day and night determination means 141, a lighting signal generation means 142, and a synchronization determination means 143. The signal generation unit 120, the A / D conversion unit 130, and the sensitivity are described above. The operation signal, the illuminance signal, and the sensitivity signal are respectively input from the information acquisition unit 150 to determine the day and night to generate a lighting signal, and the signal delay unit 110 based on the sensitivity signal to synchronize the exposure time and the shutter exposure time. Send the synchronization control signal.

Day and night determination means 141 receives the illumination signal from the A / D conversion unit 130 to determine the day or night from the input signal value. At this time, the day and night determination means 141 cuts off the input of the illuminance signal when the operation signal is input from the signal generating unit 120, which determines the illuminating signal after determining the illuminance signal after the initial input. This is because, when the lighting device 200 is generated and the lighting device 200 is turned on, if the illumination signal is continuously input even when the lighting device 200 is turned on, an error occurs in determining the day and night. Accordingly, the day and night determination means 141 blocks the input of the illuminance signal at the time when the operation signal is input from the signal generator 120, and inputs the illuminance signal again at the time when the operation signal of the signal generator 120 is blocked. By enabling this, the measurement error can be reduced. Day and night determination of the illuminance signal is a method of comparing the calculated value with a preset value by integrating an input value from being activated by the operation signal of the signal generator 120 to being cut off, or being input until being cut off after being activated. Various signal comparison methods may be applied, such as a method of comparing the average value of the illuminance signal value selected by sampling in time and a predetermined value, and at a time except for the operation signal input from the signal generator 120 to the interruption time point. Either day or night can be used as the measurement for discriminating day and night.

On the other hand, the day and night determination means 141 provides the determined information to the lighting signal generation means 142 and the synchronization determination means 143. This is because it is not necessary to generate the lighting signal and the synchronization control signal in the daytime, and thus the power consumption required to drive the lighting signal generating means 142 and the synchronization determining means 143 can be reduced.

The lighting signal generating unit 142 receives the day and night determination information from the day and night determining unit 141, generates a lighting signal for lighting the lighting apparatus 200, and provides the lighting signal to the short range communication module 160.

In more detail, the lighting signal generating unit 142 does not generate a lighting signal when the determination information of the day and night determination unit 141 is daytime, and generates a determination lighting signal only when the determination information is night. Provided at 160. In this case, the generated lighting signal may be a signal having a pulse having a predetermined width. In this case, the width of the pulse determines the time for which the lighting device 200 is turned on at once.

The synchronization determining unit 143 receives the sensitivity signal from the sensitivity information obtaining unit 150 and synchronizes the lighting timing of the lighting apparatus 200 with the shutter exposure timing of the camera 10.

In more detail, the synchronization determination means 143 receives the day and night determination information from the day and night determination means 141, and performs a synchronization determination when the received determination information is night, and from the sensitivity information acquisition unit 150. The input sensitivity signal is determined, and the synchronization control signal is transmitted to the signal delay unit 110.

Referring to the synchronization determination process, the synchronization determination means 143 shutters when the day and night determination information provided from the day and night determination means 141 is night, and the sensitivity signal received from the sensitivity information acquisition unit 150 is less than or equal to a set value. Since it is determined that the exposure time and the lighting time do not coincide, the synchronization control signal for shifting the delay time of the signal delay unit 110 is transmitted to the signal delay unit 110. In this case, the synchronization control signal transmitted by the synchronization control signal is preferably such that the delay time of the signal delay unit 110 can be sequentially shifted at regular intervals within a range of 0 to 16.6 ms, and the sensitivity information acquisition unit ( The shift signal at which the sensitivity signal input from 150 is maximized is obtained, and the shift signal is obtained with a synchronized delay time. This means that one frame photographed by the camera 10 is composed of two frames, even and odd, and since 30 frames are required in one second, a shutter driving signal is generated every 16.6 ms in one or even frames. Because. The interval shifted by the synchronization control signal may be set to a preset value, for example, 0.5 ms. In this case, it takes a maximum of 564.4 ms, which is about 34 shutter driving times, to complete synchronization. The shift interval may be input.

Meanwhile, after synchronization is performed, the synchronization determining unit 143 stores the synchronized delay time to be transmitted to the signal delay unit 110, and transmits the stored synchronized delay time to the signal delay unit 110 to expose the shutter exposure time and the lighting device. (200) It is possible to synchronize the lighting time, and if the sensitivity signal received from the sensitivity information acquisition unit 150 is maintained more than the set value, the repeated synchronization process is omitted to reduce power consumption and frame loss generated in the synchronization process To prevent. In this case, the signal delay unit 110 delays and outputs the shutter driving signal of the camera 10 according to the finally inputted synchronization control signal, which may take the form of a pulse wave having a predetermined period.

The lighting device 200 is provided in plural photographing areas in which the camera 10 is installed, and each lighting device 200 receives a lighting signal generated from the main control device 100, and transmits an illuminance signal to the main control device 100. And a lamp module driver 221 for controlling the electricity supplied from the outside according to the lighting signal input from the near field communication module 160 and transmitting the lamp module driver 221 to the lamp module 210. The controller 220, the lamp module driver 221 flashes the lamp module 210 at a predetermined period and the illumination sensor 230 for detecting the illumination of the outside and generates an illumination signal to provide to the short-range communication module 222. It is configured by.

The lighting controller 220 is mounted to each of the plurality of lighting apparatuses 200 installed in the area photographed by the camera 10 so as to periodically turn on the lamp module 210 in accordance with the shutter opening operation of the camera 10. In accordance with the lighting signal received from the main control device 100, the lamp module driver 221 for intermittently supplying the electricity supplied from the outside to the lamp module 210 and the main control device 100 to receive the light signal or Or a short range communication module 222 for transmitting the illuminance signal generated from the illuminance sensor 230 to the main controller 100. At this time, the short-range communication module 222 is a configuration for communicating with the short-range communication module 160 of the main control device 100, the same as the short-range communication module 160 of the main control device 100.

The lamp module 210 repeats the flashing by electricity interrupted by the lamp module driver 221, and the lighting timing of the lamp module 210 is synchronized with the shutter exposure time of the camera 10 to synchronize the camera 10. By turning on the shutter only when it is exposed, power consumption can be minimized.

The illuminance sensor 230 serves to limit the lighting of the lighting device 200 according to the brightness of the surroundings, and detect the illuminance of the photographing area in which the camera 10 is installed, and generate an illuminance signal to the main controller 100. to provide. That is, the illuminance sensor 230 is configured to turn off the lamp module 210 when the illuminance in the photographing area of the camera 10 is sufficiently bright enough to be photographed without the lamp module 210 being turned on. It may consist of a cell.

2 is an exemplary diagram of a plurality of closed circuit television camera-linked lighting control system according to an embodiment of the present invention in an independent space.

Referring to FIG. 2, when a plurality of cameras 10 are installed in individual independent spaces divided into similar areas or walls, the camera controller 11 is an example for interlocking the camera 10 and the lighting device 200. And the main controller 100 is applied in a separate independent configuration.

A space that can be used to shoot a single camera 10 because the space except the pillars such as the parking lot of an apartment underground parking lot or a large mart is open is a configuration applicable to a very large space, and one camera control unit 11 and the main control unit 100 in the shooting area. , A plurality of cameras 10 and an illumination device 200 are configured.

In this case, each camera 10 has an image pickup module 12 serving as a client composed of an image pickup device and a device for acquiring a video signal such as a shutter, and the main controller 100 and each image pickup module 12 with a shutter driving signal. And a camera controller 11 that receives a video signal from each imaging module 12 and serves as a server for providing the main controller 100 and the image processing apparatus 20. In this case, the imaging module 12 and the camera controller 11 may transmit and receive control signals and video signals by communicating by wire or wirelessly.

The main controller 100 receives the shutter driving signal and the video signal from the camera controller 11 of the camera 10 and synchronizes the shutter operation time with the lighting time of the lighting apparatus 200. Since the two cameras 10 open the shutters at the same time, each lighting device 200 also lights up a plurality. In this case, it is possible to form a brighter illuminance with the same power as compared to each lighting device 200 is individually turned on by the interference of light, the sensitivity signal value obtained by the sensitivity information acquisition unit 150 is set value In other words, when the sensitivity signal value is too high, the main controller 100 can reduce the pulse width of the generated lighting signal to reduce the amount of light incident on the image pickup device during the shutter exposure time, and thus It is possible to obtain the same sensitivity signal value as when the lighting device 200 is individually turned on by power consumption.

On the other hand, in this case, the short-range communication module 222 of the lighting device 200 may be configured for each of the lighting device 200, one short-range communication that oversees the lighting device 200 in the shooting zone for each imaging module 12 It may be configured as a module 222, the local area communication module 222 serves as a network hub.

10: camera 11: camera control unit
12: imaging module 20: image processing device
100: main controller 110: signal delay unit
120: signal generator 140: microcomputer
141: day and night determination means 142: lighting signal generation means
143: synchronization determination means 150: sensitivity information acquisition unit
200: lighting device 230: illumination sensor

Claims (4)

Mounted in conjunction with a closed circuit television system including a camera 10 and the image processing device 20, the lamp module 210 of the lighting device 200 installed in plurality in the shooting zone of the camera 10 In a closed circuit television camera-linked lighting control system for controlling lighting,
A signal delay unit 110 for receiving a shutter driving signal from the camera 10 and delaying the signal to output a delayed signal; A signal generator 120 receiving a delayed shutter driving signal from the signal delay unit 110 and outputting an operation signal; An A / D converter 130 for receiving an illuminance signal and outputting the digital signal; A sensitivity information acquisition unit 150 for receiving a video signal from the camera 10 and outputting a sensitivity signal of the captured image; The signal generator 120, the A / D converter 130, and the sensitivity information acquirer 150 respectively receive an operation signal, an illuminance signal, and a sensitivity signal to discriminate between day and night to generate a lighting signal, and a shutter exposure time and A microcomputer 140 for transmitting a synchronization control signal based on a sensitivity signal to the signal delay unit 110 for synchronization of a lighting time point; And a short range communication module 160 which receives a lighting signal from the microcomputer 140 and transmits the lighting signal to the lighting apparatus 200 or receives the illumination signal from the lighting apparatus 200. Main control apparatus 100 comprising a;
A short distance communication module 222 for detecting an illuminance in the photographing zone and generating an illuminance signal, receiving a lighting signal generated from the main controller 100, and transmitting the illuminance signal to the main controller 100. And a lamp module driver 221 configured to intermittently supply electricity supplied from the outside to the lamp module 210 according to a lighting signal input from the short range communication module 222; And a lamp module 210 flashing by the lamp module driver 221;
Closed circuit television camera-linked lighting control system, characterized in that comprising a. The method of claim 1,
The microcomputer 140 cuts off the input of the illuminance signal when the input of the operation signal is detected from the signal generator 120 and sets day or night as the value of the input illuminance signal until the input of the illuminance signal is blocked. Closed circuit television camera-linked lighting control system, characterized in that determining. The method of claim 2,
The main controller 100 sequentially shifts the delay time of the signal delay unit 110 when the day / night determination information is night and the sensitivity signal received from the sensitivity information acquisition unit 150 is equal to or less than a set value. Transmits a synchronization control signal to the signal delay unit 110, obtains an amount of shift that maximizes the input sensitivity signal, stores it as a synchronized delay time, and provides the signal delay unit 110 to the signal delay unit 110. Closed circuit television camera-linked lighting control system, characterized in that for outputting a uniformly delayed shutter drive signal from (110). The method of claim 3, wherein
The camera 10 transmits the same shutter driving signal to a plurality of imaging modules 12 and each imaging module 12 that are installed, and receives a video signal from each imaging module 12 to control the main controller 100. And one camera controller 11 provided to the image processing apparatus 20,
The main controller 100 receives a shutter driving signal and a video signal from the camera 10 and generates a lighting signal for simultaneously lighting the plurality of lighting apparatuses 200, and by the sensitivity information obtaining unit 150. A closed circuit television camera-linked lighting control system, characterized in that to reduce the amount of light incident on the image pickup device during the shutter exposure time by reducing the pulse width of the lighting signal generated when the obtained sensitivity signal exceeds the set value.

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