JPH114429A - Universal head for wall face recessed television camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the effect of supervision and to prevent the beauty of the room by automatically driving a camera in the inside of a ceiling face and a wall face or the like. SOLUTION: An arc guide path 20 is formed to move a camera 18 and an arc body 17 with a camera 18 arranged thereon is provided, while a lens 19 is directed to the inside of the arc guide path 20. A pinion gear 29 of a motor 28 meshes with outer teeth 17A of the arc body 17, and rollers 24-26 are placed to the guide path 20 to move the camera 18 along the guide path 20. Furthermore, a rotary plate 12 is placed to the lower side of the arc body 17, and the plate 12 is driven by a motor 15. The members are placed in the inside of, e.g. a ceiling 10, and the camera 18 is turned in two directions to phrotograph an image in a way of looking down on the lower side from the ceiling 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a surveillance television camera or the like, and is used for a head mounted on a wall-mounted television camera which automatically moves a television camera disposed inside a ceiling surface or a wall surface by remote control or the like. Regarding the configuration.

[0002]

2. Description of the Related Art Conventionally, television cameras have been used for monitoring and the like.
In various rooms, passageways, etc., it is mounted above a wall surface such as a corner portion. In this type of camera, a camera platform supporting the camera is driven to rotate, for example, in the left-right direction and the up-down direction, thereby capturing an image of a predetermined area.

[0003]

By the way, when the above-mentioned television camera and camera platform are installed in a building, they are mounted on the wall surface as described above, so that the presence of the surveillance camera can be confirmed. Has become. However, depending on the installation purpose and the situation inside the building, there are cases where the camera cannot be confirmed by a visitor or the like, and the monitoring effect can be improved.

In addition, a camera or a camera platform mounted on a wall or the like impairs the aesthetics of a room or the like, and it is often better to install the camera or a camera platform in a place invisible to visitors.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to automatically drive a camera inside a ceiling surface, a wall surface, or the like, to enhance the effect of surveillance, and to improve the appearance. It is an object of the present invention to provide a head for a TV camera with a built-in wall surface, which does not impair.

[0006]

According to a first aspect of the present invention, there is provided a pan head for a television camera embedded in a wall, wherein an arc-shaped guide path for moving the television camera is formed. A guide body in which the television camera is arranged with the lens portion directed toward the inside of the road, and a moving mechanism that rotates the television camera in an arc along an arcuate guide path of the guide body, and includes the camera. It is characterized in that it is arranged inside a building constituent surface, for example, a ceiling surface, a wall surface, a floor surface or the like, and is automatically driven. According to a second aspect of the present invention, the guide body is automatically driven by being disposed inside a rotation mechanism that rotates the guide body with a normal line (a line perpendicular to a tangent line) at one point on the arc of the guide body as a rotation axis. It is characterized by doing.

According to the above arrangement, for example, the camera is attached to the moving mechanism member, and the moving mechanism member moves along the guide path of the guide body, thereby, for example, moving the camera in an arc shape about one point on the photographing optical axis. Can be moved. That is, the rear side of the camera is moved in a fan-like manner without moving the front end side of the photographing lens, whereby the area of the photographing optical path to be secured on the ceiling surface, the wall surface, and the like can be reduced. .

According to the second aspect of the present invention, for example, a semicircular guide body is vertically arranged in an arch (convex) shape, and a rotary plate that rotates in a horizontal plane is provided. The rotating plate is rotated so as to match the normal to the center point (vertex) of the semicircular arc of the arc. According to this, when the lens mechanism is rotated left and right by shaking the rear side of the camera by the moving mechanism, and when the camera disposed obliquely from the vertical position is rotated by the rotating plate, the lens section (photographing) is performed. The optical axis rotates conically.

It is also possible to support the end portion of the semi-circular arc guide vertically, and to vertically rotate the semi-circular arc guide, and to rotate the arc using the normal line of the support point on this arc. According to this, the camera lens unit (photographing optical axis) rotates vertically by the moving mechanism, and the lens unit rotates right and left by the rotating mechanism.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 to 4 show the structure of a first example of a head for a TV camera with a built-in wall according to the embodiment. It is arranged inside. FIG. 1 is a view of the inside of the ceiling viewed from the side, and FIG. 2 is a view of the ceiling looking up. As shown, a circular window member 11 is attached to a ceiling 10 such as a room or a corridor. The window member 11 is provided with a glass plate whose inside can be visually recognized from the outside but hardly seen from the outside, or a magic mirror or the like which cannot see through the inside from the outside.

Inside the ceiling 10, a ring-shaped rotary plate 12 is mounted so as to be rotatable in a horizontal plane parallel to the ceiling 10. The rotary plate 12 has external teeth 12A formed thereon. A pinion gear 14 and a first motor 15 are provided so as to mesh with the teeth 12A. Accordingly, the rotary plate 12 rotates clockwise and counterclockwise by the forward and reverse rotation of the first motor 15.

A semicircular arc-shaped body (guide body) 17 is vertically arranged in an arch shape on the horizontally arranged rotary plate 12, and the arc-shaped body 17 is provided with a television via a moving mechanism. A camera 18 is provided, and a lens portion 19 of the camera 18 is arranged toward the center of the rotary plate 12. Therefore, the arc-shaped body 17 is arranged at a position slightly shifted from the center line of the rotary plate 12, as shown in FIG. As the moving mechanism, a guide path (rail) 20 composed of an arc-shaped groove and outer teeth 17A on the outer periphery are formed in the arc-shaped body 17.

FIG. 3 shows a structure of a member on the camera 18 side of the moving mechanism, and FIG. 4 shows a state in which the moving mechanism member is connected to the arc-shaped body 17. As shown, the camera 18 is provided with two support plates 22 and 23 integrally, and three rollers (bearing rollers) 24, 25 and 26 are arranged between the support plates 22 and 23. Is done.
That is, these rollers 24 to 26 are arranged to rotate and move in the guide path 20 of the arc-shaped body 17, and the rollers 24 and 26 are moved by the spring 27 so as to contact the upper wall of the guide path 20. The roller 25 is attached so as to be pulled by a spring 27 so as to contact the lower wall of the guide path 20.

The pinion gear 29 connected to the shaft of the second motor 28 is attached to the support plate 23 in a state of meshing with the external teeth 17A of the arc-shaped body 17. Accordingly, the camera 18 integrated with the support plates 22 and 23 moves the guide path 20 of the arc-shaped body 17 in an arc by the forward and reverse rotation of the second motor 28, and the optical axis of the lens portion 19 thereof. It turns around one point (P) on Q. A remote operation unit for controlling the driving of the first motor 15 and the second motor 28 is arranged at another location.
By this remote operation, the first motor 15 and the second motor 28
Is controlled. Although not shown, in this motor drive, functions used in the conventional pan head, such as performing accurate position control using a potentiometer,
A mechanism is adopted.

The first example has the above configuration, and its operation will be described with reference to FIGS. FIG.
1 is a side view of the arcuate body 1 when the second motor 28 is operated as described above.
7 rotates with the external teeth 17A,
26 is guided along the guide path 20 of the arc 17 and the camera 1
Numeral 8 rotates in an arc about one point P1 on the optical axis Q. According to this, as shown in the figure, the lens unit 19 of the camera 18 looking down from the ceiling 10 can be moved to the left and right ends of the room 31, and it is possible to take an image of the moving area.

When the first motor 15 is operated in a state where the lens portion (optical axis) 19 is obliquely inclined from the vertical direction, the rotary plate 12 rotates, and as shown in FIG. Camera 1 so that Q draws the outline of a cone
8 (and the lens unit 19) is rotated. According to this, it is possible to photograph the entire room along the locus R of a circle having a size corresponding to the inclination of the lens unit 19, that is, the inclination of the optical axis Q.

FIGS. 7 and 8 show the structure of a second example. In the second example, a camera platform for a television camera is arranged inside a side wall. FIG. 7 is a diagram viewed from above,
FIG. 8 is a view from the side, and shows side walls 33 such as walls and corridors.
, A window member 11 similar to the above is attached. Inside the window member 11, a semicircular arc-shaped body 35 is vertically arranged in a character C shape, and both ends of the arc-shaped body 35
6 and is rotatable about the support shaft 36.

A first motor 37 is connected to the support shaft 36. The first motor 37 causes the arc-shaped body 35 to rotate about the support shaft 36 as shown in FIG. Become. The arc-shaped body 35 has the first
As in the example, the guide path 20 formed of an arc-shaped groove and the outer teeth 35A on the outer periphery are formed.
The pinion gear 29 of the second motor 28 is meshed with the external teeth 35A.

According to the configuration of the second example, the camera 28 moves as shown in FIGS. That is, FIG. 9 is a view of the room viewed from the side. When the second motor 28 is driven and the camera 18 is moved along the guide path 20 of the arc-shaped body 17 by the moving mechanism, the camera 18
The lens section 19 rotates in an arc about a point P2 on the optical axis Q. According to this, as shown in FIG.
In the room 39, it is possible to move the lens unit 19 of the camera 18 in the up-down direction to take a picture.

Further, by driving the first motor 37, the arc-shaped body 35 itself rotates, and as shown in FIG. 10, the camera 18 and the lens unit 19 can be moved in the left-right direction to perform photographing. . Therefore, in the second example, it is possible to obtain an image of the entire area such as a room by rotating the camera 18 up, down, left, and right.

In the above embodiment, the arc-shaped members 17, 3
5 for moving the camera 18 and the arc-shaped body 1
A configuration other than the above-described configuration can be adopted as a rotation mechanism for rotating the first and the seventh and the third 35. Further, the configuration of the first example can be applied to a wall surface, and the configuration of the second example can be applied to a ceiling surface.

Further, the above-mentioned arc-shaped bodies (guide bodies) 17, 3
5 is not a perfect circle as shown in the figure,
An arc shape such as an ellipse may be used.
Will not be a point on the optical axis.

[0023]

As described above, according to the first aspect of the present invention, there is provided a guide body in which an arcuate guide path is formed, and the camera is disposed with the lens portion directed inside the arcuate guide path. Since a moving mechanism for rotating the camera in an arc along the guide path is provided, it is possible to photograph a predetermined area while automatically moving a camera disposed inside a ceiling surface, a wall surface, or the like. Further, there is an advantage that it is difficult for the visitor to confirm the existence of the monitoring camera, and the aesthetic appearance of the room or the like is not spoiled.

According to the second aspect of the present invention, since the rotation mechanism for rotating the guide body with the normal line at one point on the arc of the guide body as the rotation axis is provided, the camera can be moved in two directions. It is possible to satisfactorily perform monitoring and the like by expanding the shooting area.

[Brief description of the drawings]

FIG. 1 is a side view showing a configuration of a camera platform for a television camera embedded in a wall disposed inside a ceiling according to a first example of an embodiment of the present invention.

FIG. 2 is a diagram showing the head for a television camera of the first example as viewed from below.

FIG. 3 is a side view showing a moving mechanism of the camera shown in FIGS. 1 and 2;

FIG. 4 is a view of the moving mechanism of FIG. 3 as viewed from a motor arrangement side.

FIG. 5 is a diagram showing the movement of the camera by the mechanism for moving the camera platform of the first example.

FIG. 6 is a diagram showing the movement of the camera by the rotation mechanism of the camera platform of the first example.

FIG. 7 is a top view showing a configuration of a camera platform for a television camera disposed inside a wall according to a second example of the embodiment.

8 is a side view of the camera platform for the television camera of FIG. 7;

FIG. 9 is a view showing the movement of the camera by the moving mechanism of the camera platform of the second example.

FIG. 10 is a diagram showing the movement of the camera by the rotating mechanism of the camera platform of the second example.

[Explanation of symbols]

10: ceiling, 11: window member, 12: rotary plate, 15, 37 ... first motor, 17,
35 ... arc-shaped body (guide body), 18 ... camera,
19: lens section, 20: guide path, 24, 2
5, 26 ... roller, 28 ... second motor, 33
… Wall surface, 34… window member, 36… support shaft.

Claims (2)

[Claims] An arcuate guide path for moving a television camera is formed, a guide body having the television camera disposed with a lens portion directed inside the arcuate guide path, and an arcuate guide path of the guide body. A moving mechanism for rotating the television camera in an arc, wherein the camera head is arranged inside a building constituent surface and is automatically driven to be mounted on a wall-mounted television camera head. 2. A pan head for a wall-mounted television camera according to claim 1, further comprising a rotation mechanism for rotating said guide body with a normal line at one point on the arc of said guide body as a rotation axis. .