JPS59228473A - Controller for universal head system - Google Patents

Abstract

PURPOSE:To eliminate a mechanical moving part by pressing a finger touch input device provided on a TV screen monitoring an image picked up by a TV camera so as to extract a signal and controlling a universal head system by this signal. CONSTITUTION:The picture whose image is picked up by the TV camera 2 mounted on a universal head 1 is displayed on the screen of a monitor TV 4. A transparent plate 5 is fixed in parallel on the screen of the TV 4 via piezoelectric converting elements 7, 8. The transparent plate 5a corresponds to the center 4a of the screen of the TV 4. Output signals 7a, 8a of the elements 7, 8 are inputted to an arithmetic device 9 detecting the position and the calculated position information is inputted to an arithmetic device 10 calculating swing angle of the universal head systems 1, 2 and 3 by using the said information and a focal length 3a from a zoom lens 3. When the operator applies trimming by taking a point of the screen 4b as a center 4a, the operator has only to touch its finger 6 to a point 5b.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pan head system control device, and particularly to a pan head system control device for remotely controlling a pan head equipped with a television camera.

In general, television broadcasting stations provide news, weather forecasts,
When the range of movement of the subject is relatively small, such as in a conversation or educational program, the operator does not directly operate the pan head system consisting of the TV camera and the pan head, but instead uses the control device to ), vertical direction (hereinafter referred to as tilt), zoom and focus of the TV camera lens, movement of camera height, etc., and screen (hereinafter referred to as shot) determined by the stop position, etc., are stored in advance in the monitor room. It is operated remotely. In this case, if the actual shot of the tripod head system is different from the shot memory stored in advance, or if the tripod head system is operated correctly but the subject moves after the shot is stored,
While observing the TV monitor, the operator operates the rotary encoder for pan control, the rotary encoder for tilt control, or the joystick for both pan and tilt control on the operation panel of the control device to move the pan head and adjust the screen. Correction (hereinafter referred to as trimming) is being performed. Therefore, in this kind of trimming, the operator has to concentrate his/her attention on both the monitor TV and the row encoder or joystick, which has the disadvantage that the operability of the pan head control is poor. Due to the mechanical structure of the joystick, the moving parts lacked long-term reliability.

In view of the above-mentioned drawbacks of the conventional example, an object of the present invention is to provide a finger touch input device on a screen that monitors images taken by a television camera mounted on a pan head, and to generate signals by pressurizing the finger touch input device. The object of the present invention is to provide a pan head system control device that extracts the signal and operates the pan head system using this signal. This eliminates the need for mechanical movable parts such as low-return encoders and joysticks, improving the time reliability of the pan head control device, and also reducing the operator's concentration of attention on the extremely important TV monitor. This makes it possible to improve the operability of pan head control.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. Figure 1 shows a pan head/TV camera 2. It is a block diagram in the case of performing pan trimming of the pan head system composed of the zoom lens 3, and in the figure, the telepicture for monitoring, the transparent plate S, and the piezoelectric transducer 79g are shown in a plan view.

The images taken by the television camera mounted on the pan head are projected onto the screen of the monitor telepige, and on the screen of the telepique, as shown in Figure 2, the images are placed at the left and right ends of the two sides of the screen. A transparent plate S is fixed substantially parallel to the piezoelectric transducer 7g via the piezoelectric transducer 7g. Here, the center 5a of the transparent plate S
corresponds to the center 4a of the screen of the monitor telepicture as shown in FIG.

Piezoelectric transducer? , g, respectively.

7b is input to a calculation device 9 that performs position detection, which will be described later, and the position information calculated by this calculation device is sent to the pan head system /, 2. 3 is input to an arithmetic unit 10 (described later) that calculates the turning angle of the rotation angle.

// is a pan head driving device that drives the pan head system /, 2.3 by a signal calculated and output by the calculation device 10.

To explain the operation of the above embodiment, the operator selects a desired shot memory from a plurality of shot memories recorded in advance for operating the pan head system (2.3) and selects a desired shot memory from the pan head operating device (not shown). When the user operates the pan head drive device //, the pan head system // stops driving the pan head system /, Ω, 3 for a predetermined shot, and the television camera takes a picture. The images taken at this time are displayed on a monitor telepicture.

When the operator observes the image displayed on the monitor telepige and performs pan trimming, that is, when trimming the point lIb of the telepique screen to the center 4a of the image in FIG. , press the finger A to the point 5b (corresponding to llb) on the transparent plate S. Here, the piezoelectric element 79g receives a partial pressure inversely proportional to the distance from the upper left position 5b of the transparent plate pressurized by the pressure means B to the element 71g, and generates a piezoelectric conversion signal 7a1ga proportional to the partial pressure. do. Next, the arithmetic unit wa performs arithmetic processing on the pan trimming amount p on the telepicture screen using 7a0ga. Therefore, P is the position information of the position llb of the telepicture screen, and is also IPI〈/(anonymous number). That is, if the pressure point &b on X coincides with center left a, signal 7a=? b, and p=o. If the pressurizing point 5b approaches the piezoelectric element 7, P approaches +/, and if it approaches the piezoelectric element, -/
approach.

The calculation device 10 calculates the panning angle of the camera pan head system/2.3 using the amount P to be trimmed calculated by the calculation device 9 as described above and the focal length signal 3a generated by the zoom lens 3. Do the following.

That is, if the Mizuko angle of view when the focal length of the zoom lens 3 is f is Hf, the camera head system to be trimmed is /,
The swing angle P of the pan in c2.3 is Pθ =-・I(
It becomes f'P. Therefore, the calculation device 10 applies this calculation result Pθ to the pan head driving device //, which pans the pan head system /, 2.3 by this angle Pθ, and the trimming is completed.

In the above embodiment, in order to perform pan trimming, the piezoelectric element 71g was arranged horizontally on the screen of the monitor telepicture and the transparent plate.
Tilt trimming is possible by arranging the piezoelectric elements 7, g, gO at least three places in the x-y direction to detect the pressure point 5b on the transparent plate. By dividing into pan and tilt, trimming of both pan and tilt can be performed simultaneously. Furthermore, instead of a panel in which a transparent plate and a piezoelectric element are combined, a panel in which transparent electrodes are arranged on a glass plate and any of them are short-circuited may be used.

As explained above, a finger touch input device is provided on the screen that monitors images taken by a television camera mounted on a pan head, and a signal is extracted by applying pressure to this finger touch input device. Since the pan head can be operated, there is no mechanical part for trimming the control device, improving reliability.Furthermore, the operator's attention can be focused on the TV monitor, making the pan head control easier to operate. It has an improving effect.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of an embodiment of the present invention, and FIG. 2 is a rear view of a modified version of the transparent plate S shown in FIG. /... Pan head... TV camera...
...Monitor TV S...Transparent plate O...
...Pressure means 2ggo...Piezoelectric conversion element patent applicant Canon Co., Ltd.

Claims (1)

[Scope of Claims] A device for controlling a pan head system having a television camera mounted on a pan head, wherein a finger touch input device is provided on a television screen that monitors images taken by the television camera, and the finger touch input device A pan head system control device characterized in that a signal is extracted by pressurizing a touch input device, and the pan head system is controlled by the signal.