KR101012075B1 - Cctv camera with wide, tele, partition screen and it's control process - Google Patents

Abstract

PURPOSE: A CCTV camera capable of selectively realizing wide, tele, partition screens and a control method thereof are provided to automatically determine whether an object moving at day and night exists. CONSTITUTION: A control panel includes a multiplexer(41) and a CPU(Central Processing Unit)(42). The multiplexer receives a plurality of image signals of a camera(11~13). The multiplexer senses existence of a moving object from the image signals. The multiplexer outputs a plurality of image signals by a control signal of the CPU. An illumination sensor turns LEDs(Light Emitting Diodes)(14~15) on by a signal of an illumination sensor. The CPU generates a control signal for selectively operating the cameras by a signal of the multiplexer.

Description

CCTV camera with wide, tele, partition screen and it's control process that can selectively implement wide screen, tele screen and split screen

In particular, the present invention relates to a surveillance camera capable of simultaneously outputting a wide (wide) screen and a tele (enlarged) screen, and using a plurality of cameras having different optical magnifications to form a high quality screen. Shoots video, adds a picture in picture (PIP) function to provide a screen divided up, down, left and right, and adds an event function (motion, sensor, communication, etc.) to view from the monitor to the wide screen. The present invention relates to a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen having a function displayed for a predetermined time set as an optical magnified image screen when an event mode is applied, and a control method thereof.

Conventional surveillance cameras are determined by the lens specification (or lens angle of view) of the enlarged photographing of the subject, there is a disadvantage that the image quality is deteriorated when the pixels of the screen is increased when the enlarged image is extracted digitally. In order to completely solve this problem, the use of mega cameras or mega video recorders (DVRs) of over one million pixels increases the cost of the entire system.

In addition, the conventional surveillance camera has a problem in that it is difficult to accurately identify the moving object, because it displays the entire specific area to display on the monitor, in particular, it is impossible to identify a small character, such as a license plate of the vehicle passing by instantaneously.

The present invention is to solve the above problems, and comprises a whole day and night camera for photographing the entire front region, and a partial day camera and a partial night camera for optically zooming only the object moving in front, and daytime in C By automatically determining whether there is a moving object at night, and controlling a plurality of cameras, near-eye ID and far-eye ID through simultaneous feedback control, and displaying them on the monitor in a pop-up manner. Optionally, wide-screen, tele-screen, and split-screen can be clearly displayed on the monitor to prevent the time lag caused by Zoom In or Zoom Out on the camera so that images of moving objects can be displayed on the monitor. To provide a surveillance camera that can be implemented and a control method thereof There is.

The surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen according to the present invention operates in day and night and the whole day and night camera outputting the entire front of the area where the camera is photographed, and only the moving object optically during the day. A partial daytime camera that zooms in, a partial nighttime camera that optically zooms in on moving objects at night, a near-field IR LED and a long-range IR LED that illuminates when ambient light is below the standard illuminance, An illuminance sensor for detecting illuminance, and a front panel provided with a remote control receiving unit for receiving an external wireless signal and transmitting it to CPI; A camera panel for converting images captured by the whole day and night camera, the partial day camera, and the partial night camera into image signals; A power panel for supplying power to the camera and each component; A multiplexer (MUX) that receives a plurality of video signals input from a camera, detects whether there is a moving object from the input video signal, and outputs a plurality of video signals according to CPI's control signal, and a signal of an illuminance sensor. A control panel on which the LED is turned on, and the CPI is installed to generate a control signal to selectively operate the plurality of cameras according to the detection signal of the multiplexer; The technical features of the lower part of the surveillance camera, including a rear cover that is installed in close contact with the key adjustment panel provided with a function switch and a control knob to manually control the function of the CPI.

Surveillance cameras and control methods for selectively implementing a wide screen, a tele screen and a split screen according to the present invention automatically determine whether there is a moving object during the day and night, and a plurality of cameras through feedback control (11) (12) (13) and IR LEDs (14) (15) are selected and controlled to prevent instant delays caused by zoom in or zoom out in general cameras. It has the effect of clearly displaying the image of outgoing object on the monitor.

As a result, even a vehicle having a high instantaneous speed is capable of photographing a vehicle model and a license plate, and thus may be utilized for checking safety accidents on a road or cracking down on illegal vehicles.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating an internally coupled perspective view of a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen according to the present invention, FIG. 2 is a partially enlarged view of the front panel shown in FIG. 1, and FIG. 3. 1 is a partially enlarged view of the key adjustment panel shown in FIG. 1, FIG. 4 is a block diagram of a surveillance camera capable of selectively implementing a wide screen, a tele screen and a split screen according to the present invention, and FIG. 6 is a flowchart illustrating a control method of a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen, and FIGS. 6A to 6F illustrate a stepwise change of an image output to a monitor when a moving object is photographed according to the present invention. It is a use state diagram shown in sequence.

Surveillance cameras that can selectively implement a wide screen, a tele screen and a split screen according to the present invention, as shown in Figure 1, the front cover 10 and the camera each electronic component is installed inside the outer cover 100 The panel 20, the power panel 30, the control panel 40, and the key adjustment panel 50 are provided. Each of the components is connected to the rear cover 60 by the support shaft 71. have.

At this time, each component is installed a predetermined distance apart for the electronic component or cable installed, a plurality of through holes on the side between the front panel 10 and the rear cover 60 to improve the overall coupling stability (not shown) ) Is provided with an intermediate support (70).

Accordingly, the plurality of support shafts 71 inserted through the through holes of the intermediate support 70 cover the front panel 10, the camera panel 20, the power panel 30, and the control panel 40 with a rear cover ( 60) is firmly supported.

Of course, the auxiliary support shaft (not shown) can be installed again between the adjacent panels in addition to the support shaft (71).

On the other hand, the front panel 10 as shown in Figure 2, operating day and night, the whole day and night camera 11 to photograph the entire front of the area where the camera is photographed, and only to zoom in to photograph the moving object during the day Partial Day Camera 13, Partial Night Camera 12 which enlarges and photographs only moving objects at night, Near-field IR LED 14 and Long-distance IR LED that are lit when ambient illumination is below standard illumination. 15, an illuminance sensor 16 for detecting an ambient illuminance, and a remote control receiver 17 for receiving an external wireless signal and transmitting it to the CPI 42 are installed.

The near-field IR LED (14) and the far-field IR LED (15) are infrared LEDs used for night photographing, and are distinguished by different irradiation angles and irradiation distances. ) Is used for the whole day and night camera 11, and the near-field eye LED 14 is used for the partial night camera 12.

In addition, the camera (CCD) panel 20 has a camera module (CCD) to convert the images taken by the whole day and night camera 11, the partial day camera 13 and the partial night camera 12 into an image signal Camera Module (not shown) is provided.

In addition, as described in the block diagram of FIG. 4, the control panel 40 receives a plurality of video signals input from the cameras 11, 12, 13, and detects whether there is an object moving in the video signals. At the same time, the multiplexer (MUX) 41 which outputs a plurality of video signals in accordance with the control signal of the CAPI oil 42 and the LEDs 14 and 15 are turned on in accordance with the signal of the illuminance sensor 16 and the multiplexer 41 is turned on. In order to selectively operate the plurality of cameras 11, 12, 13 according to the signal, the CAPI oil 42 generating a control signal is provided.

The CAPI 42 has an event function (motion, sensor) which is displayed on a wide screen when an image captured by a plurality of cameras is output to a monitor and is displayed as a magnified image screen when an event mode is taken. , Communication, etc.).

At this time, the above setting time or the order in which the plurality of screens are switched, the overlap position during the PIP operation, etc. can be adjusted according to the use environment and the purpose of the program coding.

In addition, a power panel 30 is provided between the camera panel 20 and the control panel 40 to supply power to the cameras 11, 12, 13 and each electronic component.

The multiplexer (MUX) 41 is an electronic device that performs a function of selecting one input signal from a plurality of input signals by a selection control signal and loading the same into an output circuit as a multiplexing device for digital communication. In this case, PIP function and motion sensor function are used together with the conventional general multiplexer function.

In this case, since the multiplexer 41 includes a plurality of input terminals, a plurality of other cameras may be additionally installed in addition to the cameras 11, 12, and 13 used in the present invention to display various images on one monitor screen. It can be displayed.

For example, when a plurality of vehicles enter the shooting area at the same time, the shooting area is divided into four (or more) to selectively operate a camera corresponding to each area and to take an enlarged image of a desired portion of the vehicle. do. The images captured by the plurality of cameras are divided into a basic image and an enlarged image, and any one of the images is displayed on the screen of the monitor 80 or divided by a PIP function implemented in the multiplexer 41. Is displayed on the screen.

In addition, an important zoom area may be enlarged as needed by additionally using a zoom camera capable of optical magnification.

As described above, the present invention has a technical feature of installing a plurality of cameras in one body and simultaneously inputting them to the multiplexer 41 to display a variety of photographed images on the monitor 80.

The picture in picture (PIP) function is a window function for displaying an image on a display device such as a TV or a monitor so as to display images of different broadcast programs. The display is divided at the left and right sides or overlaps other small screens on the upper side of the large screen, and is simultaneously known in the electronic art. Of course, the present invention may be configured by additionally connecting a separate PIP chip to a general multiplexer on a circuit board.

The motion sensor function refers to determining whether there is a moving object in the image photographed by the camera, and when the motion is detected in the multiplexer 41, the motion sensor 14 transmits the motion to the seed oil 42. Of course, the present invention may be configured by additionally connecting a separate motion chip to a general multiplexer on a circuit board.

Therefore, the CPI 42 operates the whole day and night surveillance camera 11 during the day, photographing the front in which the camera is installed, and displaying the captured image on the monitor 80 through the multiplexer 41.

In this case, when a moving object is detected by the multiplexer 41, the partial weekly monitoring camera 13 is operated to enlarge and photograph only the moving object, and the enlarged image is connected to the monitor 80 through the multiplexer 41. It is implemented as a multi-screen, and after a certain time time delay (time delay) is replaced by the default screen.

Of course, when the moving object disappears, the basic image captured by the whole day and night surveillance camera 11 may be configured to be displayed on the monitor 80.

The image displayed on the monitor 80 may be changed in various ways, and embodiments of the present invention are illustrated in FIGS. 6A to 6F.

On the other hand, when the ambient light is low and the night light is recognized by the light sensor 16 at night, the CPI 42 simultaneously turns on the LEDs for long and short distances 15 and 14 to operate the entire day and night surveillance camera 11. do.

In this case, when the moving object is detected by the multiplexer 41, the partial night surveillance camera 12 is operated to optically enlarge only the moving object, and the following operation is the same as that of the partial day camera 13.

In addition, the CAPI 42 may control the operation of the cameras 11, 12 and 13 according to an external signal transmitted through the remote controller 17 or a control signal transmitted from the external controller 90. Can be.

 To this end, in the present invention, as shown in Figure 3, forming a through hole (not shown) in the center of the rear cover 60 so that a plurality of control devices installed in the key adjustment panel 50 is exposed to the outside. Configured.

As an embodiment of the present invention, the key adjustment panel 50 has a function switch 51 for adjusting the LED brightness for screen brightness of the surveillance camera, and a DC iris for adjusting the volume of the aperture. One or more of the 52 is provided, even after the installation of the surveillance camera, the reference value of the camera (ambient brightness, gain, aperture value) simply according to the change of the surrounding environment through the through hole formed on the rear of the rear cover 60 Can be controlled.

As described above, a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen according to the present invention is automatically controlled during the day and night through feedback control as shown in the flowchart shown in FIG. Controlled.

First, the whole day and night camera is operated according to the camera setting S10 to which the basic setting value of the surveillance camera is applied (S11). The camera setting is previously set as a basic setting value of the camera according to the use environment and purpose in the manufacturing step, and may be changed according to user selection as described below.

That is, according to the basic setting value, the image captured by the whole day and night camera 11 is output to the monitor 80 through the multiplexer 41 (S12), and there is a key input of the key adjustment panel 50 or an external remote controller input. If it is determined in step S13 that there is a key input or a remote control input, the setting value is changed according to the input to adjust the camera setting (S14).

In addition, the illuminance sensor 16 determines whether the ambient illuminance is greater than or equal to the standard illuminance (S20). If the illuminance is greater than or equal to the standard illuminance, it is determined whether the motion is detected again (S21).

At this time, when there is no motion detection in the state of the reference illuminance or more, the feedback immediately before S11, and when there is motion detection, the partial daytime camera 13 is operated (S22).

In addition, when it is below the standard illuminance, the circle LEDs 15 and 14 for the near-area are simultaneously turned on and lit (S30), and it is determined whether motion is detected (S31).

At this time, when there is no motion detection in the state of the reference illuminance or less, the feedback immediately before S11, and when there is motion detection, the partial night camera 12 is operated (S32).

Therefore, since the magnified image photographed by the partial day camera 13 or the partial night camera 12 is output to the monitor through the multiplexer 41 (S40), the user can check the basic image or the magnified image.

That is, the basic image photographed by the whole day and night camera 11 is output to the monitor 80 through the multiplexer 41, and the CPI 42 detects a moving part during the day when a moving object is detected in the photographed basic image. When the camera 12 is operated at night, the night partial camera 13 is operated to capture an enlarged image and input the same to the multiplexer 41. The multiplexer 41 selects either a basic image, a divided multiple image, or a selected enlarged image. One is displayed on the monitor 80.

Accordingly, the present invention automatically determines whether there is a moving object during the day and night, and simultaneously controls the plurality of cameras 11, 12, 13 and IR LEDs 14, 15 through feedback control. By controlling it, a clear image captured by the camera can be output to the monitor 80.

The present invention as described above is not limited to the above-described specific embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various changes without departing from the gist of the present invention as claimed in the claims. will be.

1 is an internally coupled perspective view schematically showing a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen according to the present invention;

2 is an enlarged partial view of the front panel shown in FIG.

3 is a partially enlarged view of the key adjustment panel shown in FIG. 1;

4 is a block diagram of a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen according to the present invention;

5 is a flowchart sequentially illustrating a control method of a surveillance camera capable of selectively implementing a wide screen, a tele screen, and a split screen according to the present invention.

6A to 6F are usage state diagrams sequentially illustrating a step-by-step operation change of an image output to a monitor when a moving object is photographed in the present invention;

Description of the Related Art

10: front panel 11: all day and night camera

12: part night camera 13: part day camera

14: Near IR LED 15: Far IR LED

16: illuminance sensor 17: remote control receiver

20: camera panel 30: power panel

40: control panel 41: multiplexer (MUX)

42: CPU

50: key adjustment panel 51: function switch

52: adjustment knob 60: rear cover

70: intermediate support 71: support shaft

80: monitor 90: external control unit

100: outer cover

Claims (6)

The whole day and night camera 11, which operates day and night and photographs the entire front of the area where the camera is photographed, the partial day camera 13 that optically photographs only moving objects during the day, and optically enlarges only the moving objects at night. Partial night camera 12 to be photographed, near-field LED (IR LED) 14 and the long-range eye LED (15) that is turned on when the ambient illuminance is less than the standard illuminance, and the ambient light sensor ( 16) and a front panel 10 provided with a remote controller receiving unit 17 for receiving an external wired signal and transmitting it to CFI 42; A camera panel 20 for converting images captured by the whole day and night camera 11, the partial day camera 13, and the partial night camera 12 into image signals; A power panel 30 for supplying power to the cameras 11, 12, 13, and components; Receives a plurality of video signals input from the cameras 11, 12, 13, detects whether there is a moving object from the input video signals, and outputs a plurality of video signals according to the control signal of the CAPI oil 42. The LEDs 14 and 15 are turned on in response to the signals of the multiplexer (MUX) 41 and the illuminance sensor 16, and the plurality of cameras 11 and 12 (in accordance with the signals of the multiplexer (MUX) 41) are turned on. A control panel 40 in which a CPI 42 for generating a control signal is installed to selectively operate the 13; A rear cover 60 which forms a lower part of the surveillance camera and is closely fitted with a key adjustment panel 50 provided with a function switch 51 and an adjustment knob 52 for manually controlling the function of the CPI 42 from the outside. ); Surveillance cameras that can selectively implement a wide screen and a tele screen and a split screen, characterized in that configured to include. The method of claim 1, Between the front panel 10 and the rear cover 60, the intermediate support 70 is provided with a plurality of through holes on the side, The plurality of support shafts 71 inserted through the through holes may firmly support the front panel 10, the camera panel 20, the power panel 30, and the control panel 40 to the rear cover 60. Surveillance camera that can selectively implement wide screen, tele screen and split screen. The method of claim 1, The CAPI 42 operates the whole day and night surveillance camera 11 during the day, and operates the partial day and night surveillance camera 13 when a moving object is detected by the multiplexer 41. At night, the IR LEDs 15 and 14 for the near and long distances are turned on, and the entire day and night surveillance camera 11 is operated. When the moving object is detected by the multiplexer 41, the partial night surveillance camera 12 is operated. Surveillance camera that can selectively implement a wide screen, tele screen and split screen, characterized in that. The method of claim 1, The CAPI 42 controls whether the cameras 11, 12, 13 are operated according to an external signal transmitted through the remote controller 17 or a control signal transmitted from the external controller 90. Surveillance camera that can selectively implement wide screen, tele screen and split screen. In the control method of the surveillance camera, Camera setting step (S10) to which the default setting value of the surveillance camera is applied; Operating the whole day and night camera (S11); Outputting the image captured by the whole day and night camera (11) to the monitor (80) through the multiplexer (41) (S12); Determining whether there is a key input or an external remote controller input of the key adjustment panel 50 (S13);  If there is a key input or a remote control input, adjusting camera settings by changing setting values according to the input (S14); Determining whether the ambient illuminance is greater than or equal to the reference illuminance through the illuminance sensor 16 (S20); Determining whether motion is detected in the multiplexer 41 when the reference illuminance is greater than or equal to S21 (S21); In step S22, when there is no motion detection in a state where the reference illuminance is equal to or greater than S11, and operating the partial daytime camera 13 when there is motion detection; When the reference illuminance is less than one, turning on and off the circle LEDs 15 and 14 for near distance at the same time (on) and lighting them (S30); Determining whether motion is detected in the multiplexer 41 when the reference illuminance is less than or equal to (S31); In step S32, when there is no motion detection in the state of the reference illuminance, and immediately before S11, and operating the partial night camera 12 when there is motion detection; Outputting the magnified image captured by the partial day camera 13 or the partial night camera 12 to the monitor (S40); The control method of the surveillance camera that can selectively implement a wide screen, a tele screen and a split screen, characterized in that the feedback is repeatedly controlled. The method of claim 5, The basic video taken by the whole day and night camera 11 is output to the monitor 80 through the multiplexer 41, When the multiplexer 41 transmits a detection signal of a moving object to the CAPI oil 42, the CPI 42 operates the day partial camera 12 during the day and the night partial camera 13 at night to enlarge the image. And input to the multiplexer 41, and the multiplexer 41 displays any one of a basic image, a divided multiple image, or a selected magnified image on the monitor 80. Surveillance camera control method that can implement the screen selectively.

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