JPS6257371A - Universal head system for television camera - Google Patents

Abstract

PURPOSE:To prevent the generation of danger, an accident such as collapse of a prompter by movement of an universal head by limiting the data set by a data setting means based on the set critical value data and regulating a control condition of a television camera within the critical value data. CONSTITUTION:In an universal head system, by operating members 9, 10, the data for every shot is stored, each memory data is read for every shot, a universal head 15 is driven based on the data to control the universal head and at this time, an operating member 11 is operated to perform a limitation to a driving of the universal head 15. The data previously set by the operating member 9 is inputted to a control memory by operating the operating member 11 to select a control more and limit the data outputted from a computer 12 in the data of the control memory. Thereby, since a movable range of the universal head 15 is within a set limit, an accident such as the excessive data being set through an erroneous setting of the operating member 9 or the like and a prompter collapsing can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a remote control pan head that is equipped with a television camera and that remotely controls operations such as panning and tilting.

<Prior art> Conventionally, control modes such as panning and tilting of a TV camera for each shooting screen (shot) are set in advance in a memory circuit, and when shooting, the setting data is read out for each shot to control the TV camera. A TV head that remotely controls the head has been proposed.

Such a television camera head is very convenient because it allows the camera operator to automatically control the control mode of the television camera based on the memory data for each shot without the camera operator having to operate the camera head for each shot.

On the other hand, recently, the programs produced using the above-mentioned pan head systems have diversified into news, wide-shot interviews, etc., and they are being used in various ways depending on the content.
For example, in news programs, a teleprompter is placed in front of the camera head to copy the announcer's manuscript. When using the pan head in this form, unless the range in which the pan head can move is restricted, there is a danger that the teleprompter will fall over, causing an accident.

(Objective) The object of the present invention is to
A limit setting means is provided for setting the control limit range, and even if the data from the memory circuit has a value exceeding the above limit, the control of the pan head is regulated within the above limit range,
It is an object of the present invention to provide a pan head system that prevents the occurrence of the above-mentioned accidents.

FIG. 1 is an external view showing a usage pattern using the pan head system according to the present invention.

In the figure, l denotes a television camera having a television camera lens 4, and the camera 1 is mounted on a camera head 2. Reference numeral 3 indicates a tripod that supports the head portion 2, and these structures constitute a pan head for a television camera.

5 indicates a teleprompter, and in the teleprompter 5,
6 indicates a monitor, 7 indicates a half mirror, and 18 indicates a blackout curtain. The blackout curtain 8 prevents a portion of the incident light from being reflected by the mirror and entering the lens 4 as a ghost when light from the TV camera side enters the half mirror 8 when the teleprompter 5 is used. I'm doing it. That is, blackout curtain 8
is used as a light shielding member for optically shielding the incident light from the television camera side.

When using a teleprompter in this way, it is necessary to place a blackout curtain between the TV camera lens and the teleprompter. If the lens moves beyond a predetermined range, there is a risk that the teleprompter 5 will fall over.

FIG. 2 is a block diagram showing an embodiment of the pan head system according to the present invention.

In the figure, 9 is a manual setting operation member for setting or modifying the control mode of panning, tilting, etc. by the pan head, and arbitrary control mode data is set by operating this member. IO is the operation member. This is a shot memory operation member that inputs the data set in step 9 into a part of the memory of the microcomputer 12, and outputs data input into a part of the memory from the computer 12.

By operating the operating member 10, the data set by the operating member 9 is input into a part of the memory for each shot, and during playback, the data stored in the memory part is read out for each shot. .

A memory circuit having a plurality of addresses is used as a part of the memory of the computer 12, and an arbitrary address of the memory circuit is designated with the operating member 10, and in the memory operation mode, the memory at this designated address is assigned to the memory with the operating member 10. The data set in step 9 is input, and in the playback mode, the data in the memory at the designated address is read out. The operating member 9 is constituted by a digital information setting member such as a code board, and the data is set as a digital value. Furthermore, when operating the operating member 9, the computer 12 is configured to input setting data into a portion of the memory as described above and to output the data directly.

13 is a D/A converter that converts data sent from the computer 12 into voltage; 14 is a D/A converter that drives a pan head 15 that includes a motor that drives a panning member and a tilting member based on the output of the converter; This is a servo amplifier that controls things like tilting.

Reference numeral 11 denotes a movable restriction operation section for storing data set by the operation member 9 in the restriction data memory of the microcomputer 12.

The microcomputer compares the data stored in the limiting memory (upper and lower limit data) with the data stored in each of the memories or the data set by operating the operating member 9, and outputs the result from the computer 12. Delta data stored in limiting memory
It has a restriction mode that controls the

Note that the operation member 11 can also be used to cancel selection of the above-mentioned restriction mode.

In the pan head system according to the present invention with the above configuration, the operating member 9. By operating the lO, data for each shot is stored, each stored data is read out for each shot, and the pan head 15 is driven based on the data to control the pan head. When operated, the drive of the pan head 15 is restricted.

That is, when the data set in advance by the operating member 9 is inputted into the restriction memory by operating the operating member 11 and the above-mentioned restriction mode is selected, the computer 12 is activated as described above.
The data output from will be limited by the data in the limit memory.

Therefore, when using the teleprompter 5 as shown in the first figure, if the restriction data is input into the restriction memory in advance, the movable range of the pan head will be within the set limits, and the operation member 9. Even if data outside the movable range is set in IO, the pan head will always operate only within the above limit data, so even if excessive data is set due to incorrect setting of the operating member 9, etc., the prompter will not work. This can prevent inconveniences such as falling down. In addition, the operating member 11
If you cancel the selection of the restriction mode at
Even when the data set in 9 exceeds the data set in the limiting memory', the pan head is driven based on the data set in the operating member 9.

In the embodiment, the above-described limit control is performed by a microcomputer, or, for example, a voltage limiting circuit for limiting the output of the D/A converter is provided.

Similar limit control will be performed even if the limit voltage value of the circuit is set.

<Effects> As described above, in the pan head system according to the present invention, the drive range of the pan head can be arbitrarily regulated, so even if excessive control data is set due to erroneous operation, the drive range of the pan head can be restricted. It is possible to regulate this, and it has a great effect in usage patterns such as when using the above-mentioned teleprompter.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a usage pattern of a pan head system according to the present invention, and FIG. 2 is a block diagram showing an embodiment of the pan head system according to the present invention. 9-----1 Manual setting operation member 10-----Shot memory operation member 11-----1 Movement restriction operation section

Claims (1)

[Claims] In a television camera pan head system that controls the control manner of the television camera, limit value data is set based on data set by a data setting means for setting data representing the control manner of the television camera. and a control circuit that limits the data set by the data setting means based on the set limit value data and regulates the control mode of the television camera within the limit value data. A pan head system characterized by: