KR102260186B1 - Ptz camera for cctv - Google Patents

Abstract

The present invention relates to a PTZ camera for CCTV capable of photographing horizontally and vertically. The PTZ camera for CCTV includes: a main body including a body rotating about the Y axis with respect to a cover; and a head rotating about the X axis with respect to the body; and a camera module rotating about the Z axis in the head. In addition to the horizontal and vertical rotation of the camera module, the horizontal and vertical rotation of the camera module itself is made, so as to change the photographing direction according to the installation location or the purpose of photographing.

Description

PTZ camera for CCTV that can shoot horizontally and vertically {PTZ CAMERA FOR CCTV}

The present invention relates to a PTZ camera for CCTV that can shoot horizontally and vertically, and includes a body including a body that rotates about a Y-axis with respect to a cover, and a head that rotates about an X-axis with respect to the body, and the Z in the head Including the camera module that rotates about the axis, it goes beyond the left and right and up and down rotation of the camera module, and the horizontal and vertical rotation of the camera module itself is made to the PTZ camera for CCTV that can change the shooting direction according to the installation location or shooting purpose. it's about

In general, a closed circuit TV (CCTV: Closed Circuit TV) system uses a plurality of CCTV cameras to shoot a video within a predetermined range and records the recorded video data. You can figure out what's happening in a specific place.

Such a CCTV monitoring system is used to monitor changes in the production line or places where people frequently enter, such as public institutions, apartments, large department stores or banks.

Conventional CCTV cameras are composed of wide cameras such as 16:9 in aspect ratio, etc., and are optimized for horizontally wide images, so the shooting range is limited in places such as corridors, highways, and tunnels that are long vertically. There is a disadvantage in that the number of installed cameras is inevitably increased due to the inevitably being shortened.

In this regard, Korean Patent Application Laid-Open No. 10-2008-0045318 discloses that two or more PTZ cameras (Pan-Tilt-Zoom cameras) are interlocked and complementary to each other, so that a wider area can be quickly and accurately covered with a small number of cameras. A monitoring system for interlocking control so as to monitor and shoot is disclosed.

However, as shown in FIG. 1, the conventional CCTV camera is configured to have a longer photographing area than vertically, so that the subject A is located in a non-photographed area even by vertical movement, or with a tunnel or highway. If you need to shoot vertically long such as a long road, alley, hallway, long fence or exterior wall, there is a problem in that you need to install a separate CCTV camera in these blind spots.

Accordingly, the present invention has been devised to solve the above problems,

Apart from the Pan, Tilt, and Zoom functions of PTZ cameras for CCTV, the camera module itself rotates horizontally or vertically to enable both horizontal and vertical shooting. intended to provide

In order to achieve the above object, the PTZ camera for CCTV capable of shooting horizontally and vertically according to the present invention,

a cover having a first axial tongue formed in the Y-axis direction;

A body having a first rotational part rotatably coupled to the Y-axis in the first shaft and a second shafting part formed in the X-axis direction, a second rotatably coupled to the X-axis in the second shafting part a body including a head having a rotating part and a third axial tongue formed in the Z-axis direction;

Including; a camera module having a third rotating part and a front lens part rotatably coupled to the Z-axis in the third shaft tongue part;

The camera module is characterized in that both horizontal and vertical direction shooting is possible.

And in the PTZ camera for CCTV capable of shooting horizontally and vertically according to the present invention,

The body, characterized in that it comprises a sensing means for detecting whether the horizontal direction or vertical direction of the camera module.

In addition, in the PTZ camera for CCTV capable of shooting horizontally and vertically according to the present invention,

The camera module includes an image processing unit that transmits the photographed image information to the display device, and converts the image signal output from the image processing unit to a horizontal view mode or a vertical view mode according to the photographing direction sensed by the sensing means to transmit it It is characterized in that it includes a screen switching unit.

In addition, in the PTZ camera for CCTV that can shoot horizontally and vertically according to the invention,

The camera module is characterized in that it comprises a direction control unit for controlling the rotation operation of the body, the head, and the camera module to specify the tracking target so that the lens unit follows the tracking target.

PTZ camera for CCTV capable of shooting horizontally and vertically according to the present invention,

In addition to the Pan, Tilt, and Zoom functions of the PTZ camera, it is possible to switch between horizontal and vertical shooting by rotating the camera module itself. Horizontal direction shooting in general places, vertical shooting on long roads, corridors, tunnels, etc.), the number of cameras required for installation can be kept to a minimum.

It detects whether the camera module is shooting horizontally or vertically and automatically converts the video signal to horizontal or vertical mode according to the shooting direction, so that the administrator can identify the image more easily and conveniently. ,

The direction of the camera module is automatically changed by specifying the target to be tracked, so that the image can be acquired by accurately shooting the tracking target in a wider range,

When a subject cannot be monitored and photographed only by vertical rotation of the camera, or a long area such as a tunnel or highway is photographed, there is an effect of eliminating blind spots that are not monitored and photographed.

1 is a view for explaining a conventional security camera shooting area.
Figure 2 is a perspective view of a PTZ camera for CCTV according to the present invention.
Figure 3 is a first exploded perspective view of Figure 2;
4 to 6 are partially exploded perspective views of FIG. 2 .
Fig. 7 is a cross-sectional view of Fig. 2;
8 is a block diagram of a camera module according to the present invention.
9 is a view showing a state in which the vertical shooting mode is switched according to the present invention.
10 is a view showing a character display method in a vertical shooting mode according to the present invention.
11 is a view showing a direction change and problem display method according to the present invention.
12 is a cross-sectional view of a main part for explaining a push bar according to the present invention.

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference numerals, particularly the tens digit and the one digit, or the tens digit, the one digit, and the same alphabetic reference numerals indicate members having the same or similar functions, and, unless otherwise specified, each of the figures in the drawings. The member indicated by the reference sign may be understood as a member conforming to these standards.

In addition, in each drawing, components are expressed in exaggeratedly large (or thick) or small (or thin) in size or thickness in consideration of convenience of understanding, or simplified, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as comprises or consists of are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, and one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification will be referred to only to distinguish that they are different components, and are not limited to the order of manufacture, and the names are not defined in the detailed description and claims of the invention. may not match.

When describing the PTZ camera for CCTV capable of shooting horizontally and vertically according to the present invention, for convenience, if an approximate direction standard that is not strict is specified with reference to FIG. 1, the direction in which gravity acts is the downward direction The directions are specified and described in accordance with this standard unless otherwise specified in the detailed description and claims of the invention related to other drawings, as it is, up, down, left and right.

Hereinafter, a PTZ camera for CCTV capable of shooting horizontally and vertically according to the present invention will be described with reference to the accompanying drawings.

The present invention, as shown in Figures 2 to 8,

a cover 10 having a first axial tongue 11 formed in the Y-axis direction;

A body 20 having a first rotational part 21 rotatably coupled to the Y-axis in the first shaft and tongue 11 and a second shaft 22 formed in the X-axis direction, the second shaft and tongue (22) a body (M) including a head 30 having a second rotating part 31 rotatably coupled to the X-axis as an axis and a third axial tongue part 32 formed in the Z-axis direction;

A camera module 40 having a third rotating part 41 and a front lens part 42 that are rotatably coupled to the Z-axis in the third shaft tongue part 32;

The camera module 40 is characterized in that both horizontal and vertical direction shooting is possible.

The cover 10 protects the main body M while installing the PTZ camera. Hereinafter, it will be described representatively that the cover 10 is installed in a vertical direction on an installation member such as a ceiling bracket, but only the cover ( 10) can be mounted horizontally on a wall bracket or the like, of course.

Specifically, the cover 10 has a shape in which the skirt-type side wall part 12 is connected downward along the periphery of the rim part, and the upper part of the main body M is inserted into the receiving part 13 inside the side wall part 12. is coupled, and the first shaft tongue 11 is provided in the center of the bottom surface of the cover 10 .

Reference number 14 is a mounting hole for installing a PTZ camera, reference number 15 is a locking means made of a fall prevention wire, and reference number 16 is a rotary connector that prevents the power cable from being damaged when the main body (M) is rotated. It is a slip ring.

The body M is composed of a body 20 and a head 30. First, the body 20 is an inverted 'U'-shaped shape having wing parts 23 protruding downward from the bottom of both side ends, The first rotating part 21 is provided in the center of the upper surface, and the second shaft tongue part 22 is provided on each inner surface of the both wing parts 23 .

The first rotating part 21 is provided with a first bearing member 24 for shaft coupling with the first shaft tongue part 11 , and the second shaft tongue part 22 is shaft-coupled to the second rotation part 31 . A second bearing member 25 is provided for

Accordingly, the main body M rotates left and right about the Y axis with respect to the cover 10, and the head 30 rotates up and down about the X axis with respect to the body 20, and eventually the head 30 is Both left and right and up and down rotation are possible on the Y axis and X axis, so that it is possible to change the shooting angle up, down, left, and right.

In addition, the body 20 includes a first motor 26A for rotating the first rotating unit 21 and a second motor 26B for rotating the second rotating unit 31 .

Specifically, first, the first rotating part 21 includes a first pulley 27A connected to the first bearing member 24, and the first motor 26A is Y on one side of the first pulley 27A. It is mounted upright in the axial direction, and a first belt member 28A is connected to surround the rotation shaft of the first motor 26A and the first pulley 27A.

The first belt member 28A is a timing belt type and transmits the rotational force of the first motor 26A to the first pulley 27A, and through the first bearing member 24, the first shaft 11) As the first rotating part 21 supported by rolling rotates, the body 20 and the head 30 rotate left and right with respect to the cover 10 .

And the second rotating part 31 includes a shaft connected to the second bearing member 25 and a second pulley 27B, and the second motor 26B is X on the upper portion of the second pulley 27B. It is mounted to lie down in the axial direction, and a second belt member 28B is connected to surround the rotation shaft of the second motor 26B and the second pulley 27B.

The second belt member 28B is also a timing belt type, and transmits the rotational force of the second motor 26B to the second pulley 27B, and through the second bearing member 25, 22) As the shaft, that is, the second rotating part 31 rotates, the head 30 rotates up and down with respect to the body 20 .

The head 30 is provided with the second rotating part 31 on both side portions, a camera window 33 is mounted on the front side, and the third shaft tongue part 32 is tunnel-shaped to the rear side of the camera window 33 . is provided with

In addition, the head 30 is provided with a flash window 35 under the camera window 33 , and a lighting unit 34 made of a plurality of LED lenses is mounted inside the flash window 35 .

The camera module 40 is mounted on the third shaft tongue part 32 so that the front lens part 42 faces the camera window 33 and rotates left and right about the Z axis, and thus generally horizontally/vertically In the case of a camera lens having a photographing area wider than the vertical with a ratio of 1 or more (for example, 16:9), it is rotated in the vertical/horizontal direction with respect to the head 30 to enable horizontal and vertical photographing.

That is, the camera module 40 is controlled to select a horizontal direction photographing mode and a vertical direction photographing mode by physically rotating itself.

To this end, the head 30 includes a third motor 36 for rotating the camera module 40 .

Specifically, the camera module 40 has a ring-type driven gear 43 having a gear part on its outer circumferential surface is extrapolated and coupled to the case of the camera module 40, and Z on one side of the third shaft tongue part 32 . The third motor 36 is mounted to lie down in the axial direction, and the gear portion of the driven gear 43 is meshed with and connected to the rotation shaft of the third motor 36 with a gear.

At this time, the driven gear 43 is supported by meshing with one or more idle gears 37 mounted along the circumferential direction of the first shaft tongue 11 separately from the rotation shaft gear 36a of the third motor 36 . do.

The rotation shaft gear of the third motor 36 and the driven gear 43 are connected in a spur gear type so that the rotational force of the third motor 36 is transmitted to the driven gear 43, so that the camera module 40 is It rotates left and right about the Z-axis on the third shaft tongue part 32 .

Accordingly, the present invention provides the same function as the conventional PTZ camera, plus a horizontal/vertical direction shooting selection function, so that it can shoot vertically wide shooting sections such as corridors, highways, and tunnels as well as general monitoring/photography locations. It becomes possible to expand the surveillance/photography area.

In addition, since the present invention enables both horizontal and vertical shooting, it can be installed and used universally without the need to install a separate PTZ camera suitable for the installation location, while keeping the number of PTZ cameras required for monitoring/photography to a minimum. , You can switch the shooting direction mode if necessary.

Furthermore, the main body (M) includes a sensing means (45) for detecting whether the camera module (40) is photographed in a horizontal or vertical direction.

The sensing means 45 includes various sensors for detecting whether the camera module 40 is rotated, and the state information of the camera module 40 detected by the sensing means 45 in this way is a screen switching unit 47 to be described later. ) is transferred to

The camera module 40 includes an image processing unit 46 that transmits photographed image information to a display device, and an image signal output from the image processing unit 46 according to the photographing direction sensed by the sensing means 45 . and a screen switching unit 47 for switching to a horizontal view mode or a vertical view mode to transmit.

At this time, the camera module 40 automatically rotates according to the installation location or according to the sensing object to automatically switch to a horizontal shooting mode having a horizontal width longer than the vertical width or a vertical shooting mode having a vertical width longer than the horizontal width, continuously This makes it possible to monitor and photograph an object to be photographed.

In addition, the camera module 40 specifies a tracking target to control the rotational operation of the body 20 and the head 30 and the camera module 40 so that the lens unit 42 follows the tracking target. (48).

And when an object to be photographed approaches or deviates from the boundary of the horizontal photographing area set as a reference, a motor driving signal is sent to the third motor 36 so that the camera module 40 is moved within the third shaft and tongue part 32 . By rotating it left and right, it is possible to automatically switch from the horizontal shooting area to the vertical shooting area.

Unfortunately, as shown in FIG. 9, the position and movement of the object to be photographed are detected in the state in which the standard horizontal photographing area is set in [a], but as in [B], the photographing object approaches the boundary of the reference horizontal photographing area or When it is detected that it departs from the boundary, in [c], the screen switching unit 47 sends a control signal to the third motor 36 to rotate the camera module 40 by 90 degrees to switch to the vertical shooting area, and accordingly As in [d], when an object moves in a blind spot where it is difficult to shoot in a horizontal shooting area due to vertical movement, or when a long road such as a tunnel or highway, an alley, a corridor, a long fence length or an external wall, take a long shot. Even when it is necessary to continuously photograph an object to be photographed.

On the other hand, as shown in FIG. 10, in the case of wanting to display text on the captured image,

The position and size of the characters may be adjusted by a character control unit (not shown) to fit the vertical image to be captured after switching to the vertical shooting area, so that they are displayed together in the vertical view mode image.

In addition, as shown in FIG. 11 , after initially setting a standard horizontal imaging area as a reference (S11), the position and movement of the object to be photographed are detected (S12), but the object to be photographed moves to approach or border the boundary of the standard horizontal photographing area. When it is confirmed to depart from (S13), the operation signal of the third motor 36, that is, the longitudinal conversion signal is transmitted (S14), and the third motor 36, the drive shaft, and the driven gear 43 are vertically interlocked by the interlocking. It is switched to the photographing area (S15), so that the vertical image of the upper right side is photographed.

On the other hand, if you want to display text on the image together, the text control unit displays the text for the horizontal image on the horizontal view mode image according to the shooting of the initially set horizontal photographing area (S21), whether the sensing means switches to the vertical photographing area When recognizing whether or not it is displayed in the vertical image, by rearranging the position of the characters for the horizontal image (S22), and adjusting the size of the characters (S23) to rearrange the characters in both the vertical view (S24), As shown in the lower right of the state in which the horizontally arranged horizontal image characters are displayed, the vertical image is switched to the vertical image characters displayed state.

On the other hand, as shown in Figure 12, including a flange portion 29 connected to protrude outward obliquely along the circumferential direction from the upper end of the outer surface of the main body (M), the flange portion 29 inside the concave groove (29A) ) is formed.

The flange portion 29 prevents water such as rain from flowing into the side wall portion 12, and the water introduced in spite of the flange portion 29 falls into the concave groove 29A and separates the drain hole. (not shown) can be discharged.

At this time, foreign substances such as dust may be accumulated in the concave groove 29A to prevent drainage of water. In the present invention, the push bar protrudes from the inner surface of the side wall portion 12 and is connected to be inserted into the concave groove 29A. (17).

The push bar 17 is composed of a pair connected in a downward slope toward the concave groove 29A on both sides of the concave groove 29A in the circumferential direction from the protrusion of the side wall portion 12, and the At the end, a brush portion 17a corresponding to the shape of the concave groove 29A is bent and connected in parallel to the concave groove 29A.

Accordingly, when the horizontal rotation of the main body M is periodically repeated with respect to the cover 10, the brush portion 17a of each push bar 17 scrapes and removes the foreign material accumulated in the concave groove 29A, thereby fixing the foreign material. It is possible to prevent rotational interference of the main body M or deterioration of the drainage function caused by the occurrence of such.

In the above description of the present invention, with reference to the accompanying drawings, a PTZ camera for CCTV capable of shooting horizontally and vertically has been mainly described, but the present invention is capable of various modifications, changes and substitutions by those skilled in the art, and such modifications and changes and substitution should be construed as belonging to the protection scope of the present invention.

M: body
10: cover 11: 1st shaft snow part
12: side wall part 13: receiving part
14: mounting hole 15: wire
16: slip ring
20: body 21: first rotating part
22: second shaft snow part 23: wing part
24, 25: bearing members 26A, 26B: first and second motors
27A, 27B: first and second pulleys 28A, 28B: first and second belt members
30: head 31: second rotating part
32: third shaft tongue 33: camera window
34: lighting unit 35: flash window
36: third motor 37: idle gear
40: camera module 41: third rotating part
42: lens unit 43: driven gear

Claims (4)

a cover 10 having a first axial tongue 11 formed in the Y-axis direction;
A body 20 having a first rotational part 21 rotatably coupled to the Y-axis in the first shaft and tongue 11 and a second shaft 22 formed in the X-axis direction, the second shaft and tongue (22) a body (M) including a head 30 having a second rotating part 31 rotatably coupled to the X-axis as an axis and a third axial tongue part 32 formed in the Z-axis direction;
A camera module 40 having a third rotating part 41 and a front lens part 42 that are rotatably coupled to the Z-axis in the third shaft tongue part 32;
The camera module 40 is capable of both horizontal and vertical shooting,
the head 30 includes a third motor 36 for rotating the camera module 40;
The camera module 40 has a ring-type driven gear 43 having a gear part on its outer circumferential surface is extrapolated to the case of the camera module 40 and coupled to one side of the third shaft and tongue part 32 in the Z-axis direction. The third motor 36 is mounted to lie down, and the gear part of the driven gear 43 is meshed and connected to the rotation shaft of the third motor 36 by a gear 36a,
The driven gear 43 is supported by meshing with one or more idle gears 37 mounted along the circumferential direction of the first shaft tongue 11 separately from the rotation shaft gear 36a of the third motor 36. PTZ camera for CCTV, characterized in that there is.
The method of claim 1,
The main body (M) includes a sensing means (45) for detecting whether the camera module (40) in the horizontal direction or the vertical direction,
The camera module 40 includes an image processing unit 46 that transmits photographed image information to a display device, and an image signal output from the image processing unit 46 according to the photographing direction sensed by the sensing means 45 . PTZ camera for CCTV, characterized in that it includes a screen switching unit (47) that converts to a horizontal view mode or a vertical view mode to transmit.
3. The method of claim 2,
The camera module 40 is a direction control unit for controlling the rotational operation of the body 20, the head 30, and the camera module 40 so that the lens unit 42 follows the tracking target by specifying the tracking target ( 48) PTZ camera for CCTV comprising a.
4. The method according to any one of claims 1 to 3,
The cover 10 has a form in which the skirt-type side wall part 12 is connected downward along the periphery of the rim part, and the upper part of the main body M is inserted into the receiving part 13 inside the side wall part 12. are combined,
The main body (M) includes a flange portion (29) connected to protrude in an outer oblique direction along the circumferential direction from the upper end of the outer surface, and a concave groove (29A) is formed inside the flange portion (29),
and a push bar 17 protruding from the inner surface of the side wall 12 and connected to be inserted into the concave groove 29A,
The push bar 17 is constituted by a pair connected from the protrusion of the side wall portion 12 to both sides of the concave groove 29A in the circumferential direction inclined downward toward the concave groove 29A. A PTZ camera for CCTV, characterized in that a brush portion (17a) corresponding to the shape of the concave groove (29A) is bent and connected in parallel to the concave groove (29A) at the end of the PTZ camera.

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