KR20080037451A - Camera for monitiring a distinct - Google Patents

Abstract

A monitoring camera device is provided to monitor an object in all directions by rotating dual cameras in all directions and to reduce a manufacturing cost by sharing components used in the dual cameras with each other. A monitoring camera device comprises a dual camera unit, a first switching unit(210), a signal processing unit(212), a second switching unit(214), a vertical driver(216) and a switching control unit(218). The dual camera unit acquires monitoring images of different zones, removes noises included in the acquired monitoring images, and outputs image frame data of different channels. The first switching unit switches the image frame data of different channels from the dual camera unit. The signal processing unit converts and outputs image frames by channels from the first switching unit into an image signal to be displayed. The second switching unit divides the image signal from the signal processing unit into signals by channels. The vertical driver synchronizes the image frame data from the dual camera unit. The switching control unit controls the first switching unit and the second switching unit according to the image frame data from the dual camera unit.

Description

Surveillance camera device {CAMERA FOR MONITIRING A DISTINCT}

1 to 3 are views for explaining the mechanical configuration of the dual camera unit constituting the surveillance camera device according to an embodiment of the present invention.

4 is a block diagram of a surveillance camera device according to an embodiment of the present invention.

The present invention relates to a surveillance camera device, and more particularly to a surveillance camera device capable of omnidirectional monitoring through a dual camera.

Surveillance cameras that detect illegal intruders or criminals are installed and operated in certain places such as houses, roads, 24-hour convenience stores, parking lots, department stores, banks and exhibition halls. The video of the surveillance area that can be acquired by the surveillance camera is transmitted to the monitor installed in the monitoring place of the office, so that the monitor can check the surveillance video and, if necessary, record only the desired scene using the DVR or the VCR.

Normal surveillance cameras are installed on high ceilings or walls, out of reach of people, and have an adjustable structure so that they can be placed in the desired direction after installation. Such surveillance cameras are generally referred to as fixed cameras, but the limitation of monitoring only a certain area has led to the emergence of a new type of rotating camera.

Rotating cameras, also called pan-tilt cameras, have a rotatable structure that can be rotated through remote or wired operation.

However, the pan tilt camera is rotated within a certain angle, for example, 300 to 350 degrees when rotating in the left and right direction, there is a disadvantage that 360-degree omnidirectional monitoring is not achieved, and furthermore, the rear region of the camera lens when the camera rotates Because there is a structure that can not be made, there is a lot of illegal action to check the camera rotation state.

Accordingly, an object of the present invention is to provide a surveillance camera device capable of monitoring the omnidirectional by rotating each of the dual cameras capable of monitoring different directions as well as up and down, left and right, and

Furthermore, by providing components that can be shared by dual cameras for bi-directional surveillance, it is possible to reduce manufacturing costs and provide a surveillance camera device that can realize a light and simple product.

Surveillance camera device according to an embodiment of the present invention for achieving the above object,

A dual camera unit for acquiring surveillance images of different regions and outputting image frame data of different channels after removing noise included in each acquired image;

A first switching unit for switching selection of image frames of different channels output from the dual camera unit;

A signal processor for converting the video frame for each channel input through the first switching unit into a displayable video signal and outputting the converted video signal;

A second switching unit for branching the video signal for each channel output from the signal processor for each channel;

A vertical driver for synchronizing the frame image output of the dual camera unit;

And a switching controller configured to control the first switching unit and the second switching unit in accordance with the frame image output of the dual camera unit to display different channel images.

Furthermore, the dual camera unit of the surveillance camera device according to an embodiment of the present invention includes two cameras, in order to manually rotate the two cameras,

A first rotating part for rotating each camera to a first axial center;

A second pivot for rotating each of the cameras to a second axial center;

It characterized in that it comprises a third rotating part for rotating the installation fixture to which each of the camera is fastened to the third axial center.

In some cases, to remotely drive the two cameras,

An operation signal receiving unit for receiving an operation signal for rotating the dual camera unit;

A camera driving controller for rotating the dual camera unit according to the received operation signal;

And a camera rotating unit for rotating each of two cameras constituting the dual camera unit to three different axial centers under the control of the camera driving controller.

According to the characteristics of the present invention as described above, by using a dual camera that can monitor different directions, bidirectional monitoring is possible, as well as the advantage of being capable of omnidirectional monitoring within a short time by driving each of the dual cameras up and down, left and right as well as rotation. And

Furthermore, by sharing the parts that can be shared by dual cameras for bidirectional monitoring, it not only reduces manufacturing costs but also enables the implementation of light and simple products, and has an advantage of easy construction compared to a system using two cameras.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration, such as a power supply, may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

1 to 3 are views for explaining the mechanical configuration of the dual camera unit constituting the surveillance camera device according to an embodiment of the present invention.

Dual camera units (camera 1, camera 2) constituting the surveillance camera device according to an embodiment of the present invention, as shown in Figure 1 dome-shaped cap 108, the cap 108 and detachably coupled It is mounted in the circular base 110.

The dual camera unit mounted in the cap 108 and the circular base 110 largely includes a first camera for acquiring a surveillance image for a first surveillance region and a second camera for acquiring a surveillance image for a second surveillance region. It includes.

In addition to these cameras, as shown in FIGS. 1 and 2, the dual camera unit includes a first rotating unit 100 for rotating each camera up and down about a single axial direction (called a first axial direction), and each of the cameras. For rotating the second pivoting part 102 and the mounting fixture 104 to which each of the cameras are fastened about the third axial center to rotate about another axial direction (called a second axial direction). And a rotating part 106.

Each of the cameras is rotatable in the vertical direction by the first pivot 100, and each of the cameras is rotatable in the left and right direction perpendicular to the vertical direction by the second pivot 102. Furthermore, each of the cameras rotatable in the up, down, left, and right directions is fastened to both ends of a vertical bar placed on the centerline of the mounting fixture 104, and thus, the cameras may be connected to the third pivot part 106 formed on the mounting fixture 104. As a result, the dual camera unit itself can rotate from 0 to 350 degrees.

That is, as the dual camera unit according to the embodiment of the present invention has the above-described structure, the contractor or the store owner rotates the position of each camera about three axial directions so that a surveillance image of a desired area can be obtained. Can be operated manually.

Since the surveillance camera is generally installed on a ceiling or the like, the pivoting units 100, 102, 106 may be designed to rotate by a motor drive for convenience of camera position manipulation. This will be described in more detail with reference to FIG. 4.

Hereinafter, a block configuration of a surveillance camera device having the above-described structure will be described with reference to FIG. 4.

Referring to FIG. 4, first, the dual camera unit may be divided into camera 1 and camera 2, as shown in FIGS. 2 and 4, and each of the distinguishable cameras acquires a surveillance image of a different area and includes it in each acquired image. It removes the noise and outputs the image frame data of different channels.

Each of the cameras has CCDs (Charge Coupled Devices) 202 and 206 for converting and outputting light incident through the lens unit into electrical imaging signals, and removes noise from the imaging signals output from the respective CCDs 202 and 206. And a signal correction unit (204, 208) for converting the signal into digital data. The signal correction units 204 and 208 include a sample & hold and AGC circuits, as known in the art, and an A / D converter at a later stage.

The first switching unit 210, which may be implemented as an analog multiplexer (also referred to as an analog MUX), may describe image frames of different channels Ch1 and Ch2 output from the dual camera unit, more specifically, the camera 1 and the camera 2. According to the control of the switching control unit 218, switching is selected and output.

The signal processor 212, which can be implemented as a digital signal processor, converts and outputs an image frame for each channel Ch1 and Ch2 input through the first switching unit 210 into a displayable image signal. More specifically, the signal processor 212 converts the image frame data of the channel 1 or the image frame data of the channel 2, which are input through the first switching unit 210, into image signals Y, U, and V of a displayable format. And print it out.

The second switching unit 214, which can be implemented as an analog multiplexer, branches the video signal for each channel output from the signal processor 212 for each channel Ch1 and Ch2 under the control of the switching controller 218, which will be described later.

Meanwhile, a vertical driver 216, also called a trigger timer, generates a vertical signal for synchronizing the frame image output of each of the CCDs 202 and 206 constituting the dual camera unit to generate a CCD1,2. 202 and 206, and outputs to the switching control unit 218,

The switching controller 218 is configured to output the different channel images in separate channels at the same time, in accordance with the frame image output (vertical signal) of the dual camera unit, in which the first switching unit 210 and the second switching unit 214 are used. To control.

These basic components are mounted on a PCB and mounted within the cap 108 and the circular base 110 shown in FIG.

In addition to the above-described configuration, the surveillance camera device according to a modified embodiment of the present invention may further include a manipulation signal receiver 220, a camera driving controller 222, and a camera rotating unit 224 as a configuration for remotely controlling the dual camera unit. It may be.

For reference, the operation signal receiver 200 is a component for receiving an operation signal for rotating the dual camera unit, and may be implemented as a receiver for receiving a remote operation signal of a wireless method such as a remote controller.

The camera driving controller 222 generates and outputs a signal for rotating each camera constituting the dual camera unit according to the operation signal received through the operation signal receiving unit.

The camera rotating unit 224 rotates each of the two cameras constituting the dual camera unit under the control of the camera driving controller 222 about three different axes (x, y, z) directions. The camera rotating unit 224 may include a gear that rotates by a motor and a motor drive and a rod that is fastened to one point of the gear, and a guide rod that is fastened to the rod end and moves along the guide groove as already known. Can be.

Hereinafter, the operation of the surveillance camera device according to an embodiment of the present invention will be described with reference to FIGS. 2 and 4.

First, it is assumed that a surveillance camera device according to an embodiment of the present invention is constructed in, for example, a corner ceiling of a "-" shape. The contractor may set a desired monitoring area at the corner portion of the “a” shape through manual manipulation of the first rotating part 100 to the third rotating part 104.

If the camera device operates while the setting of the surveillance region is completed as described above, the image frames of which the outputs are synchronized from the CCD1 202 and the CCD2 206 of each camera will be output by the vertical driver 216. It is assumed that an image frame output from each CCD 202 and 206 is 60 frames per second.

The image frames output from the CCDs 202 and 206 at a rate of 60 frames per second are then input to the corresponding signal correction units 204 and 208 to remove noise, and are then converted into digital image frame data of different channels to be converted into the first switching unit 210. Are printed respectively.

On the other hand, the switching control unit 218 time-divisionally controls the first switching unit 210 according to the vertical signal of the vertical driver 216 instructing the frame image output of the CCDs 202 and 206. For example, the camera 1 (Ch1) The first switching unit 210 is alternately controlled such that only odd frames are selected among the output images of the second image and only even frames are selected among the output images of the camera 2 (Ch2). Then, each channel image of 30 frames per second is alternately input to the signal processor 212.

Accordingly, the signal processor 212 converts the image frame for each channel input through the first switching unit 210 into a displayable image signal, and outputs the same. The second switching unit 214 also controls the switching controller 218. Accordingly, the video signal for each channel output from the signal processor 212 is divided into channels Ch1 and Ch2 for output.

For example, if the channel switching time of the second switching unit 214 after the time required for the signal processing unit 212 to convert the image of one frame into a displayable signal from the channel switching time of the first switching unit 210, the camera The output image of 1 is output through the Ch1 path, and the output image of camera 2 is output through the Ch2 path, so that images of different surveillance regions are displayed on each display device, or images of different surveillance regions are stored in the recording apparatus. It will be possible.

That is, by using the 2 in 1 surveillance camera apparatus of the present invention, it is possible to simultaneously monitor or store images of different areas without difficulty of wiring and construction.

As described above, the present invention uses dual cameras (2 in 1) capable of monitoring different directions, and enables bidirectional monitoring, as well as rotational driving of each of the dual cameras up and down, left and right, and thus omnidirectional monitoring in a short time. There are,

Furthermore, by designing common components that can be shared by dual cameras for bi-directional surveillance, it not only reduces manufacturing costs but also enables the implementation of lightweight and lightweight products, and it is easier to install and wire than a system using two cameras. Have

On the other hand, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be defined only by the appended claims.

Claims (4)

A dual camera unit for acquiring surveillance images of different regions and outputting image frame data of different channels after removing noise included in each acquired image; A first switching unit for switching selection of image frames of different channels output from the dual camera unit; A signal processor for converting the video frame for each channel input through the first switching unit into a displayable video signal and outputting the converted video signal; A second switching unit for branching the video signal for each channel output from the signal processor for each channel; A vertical driver for synchronizing the frame image output of the dual camera unit; And a switching controller configured to control the first switching unit and the second switching unit in accordance with the frame image output of the dual camera unit. The method of claim 1, wherein the dual camera unit comprises two cameras, A first rotating part for rotating each of the cameras to a first axial center; A second pivot for rotating each of the cameras to a second axial center; And a third rotating part for rotating the installation fixture to which each of the cameras is fastened to a third axial center. The apparatus of claim 1, further comprising: an operation signal receiving unit for receiving an operation signal for rotating the dual camera unit; A camera driving controller for rotating the dual camera unit according to the received operation signal; And a camera rotating unit for rotating each of two cameras constituting the dual camera unit to three different axial centers under the control of the camera driving controller. The surveillance camera device according to any one of claims 1 to 3, wherein the first switching unit and the second switching unit are analog muxes.

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