JPS5832759B2 - Dimmer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for controlling the lighting of a stage or a TV studio, for example, using dimming data stored in advance in a storage device, and particularly to a device for easily modifying data once set. The present invention relates to a light control device that can be used.

Conventionally, as shown in FIG. 1, in this type of dimming device, a preset fader 3 is connected to a storage device 1 via a position encoder 2, and the analog dimming data set by this fader 3 is transferred to the position encoder 2. There is a system in which the dimming data is converted into digital data and stored in the storage device 1, and then the dimming output control device 4 is controlled by the stored dimming data.

However, with such a device, if it becomes necessary to correct the dimming data while on air in a TV studio, for example, after specifying the storage device that requires correction, set the preset fader 3 to the desired position, and suddenly change the data to the storage device 1. When switching the memory level, there will be a difference in the level, which is not desirable.

Therefore, in general, the position of fader 3 is adjusted once to the memory level at 11, and once the levels match, the fader
3 at a desired position 1 to move it to a new storage level.

For this reason, the correction of such data requires a lot of effort and is multifaceted, and it is also necessary to display the storage level and the coincidence of levels, which has the drawback of increasing the size of the device.

Therefore, conventional methods have been considered that use digital increase/decrease switches to modify the memory level.
With this method, the speed of level correction is constant, so it is impossible to respond to both slow operations needed for subtle adjustments and quick operations required for sudden corrections. .

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a light control device that allows easy modification of light control data and allows arbitrary operation speed.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 2, 11 is a storage device, and this storage device 11 is designed to store dimming data.

A dimming output control device 12 is connected to this storage device 11 .

This control device 12 controls dimming based on the above-mentioned dimming data.

Reference numeral 13 denotes a dial as an operating body for setting position data, and this dial 13 can be rotated infinitely in two directions.

A position encoder 14 is connected to the dial 13.

The encoder 14 converts and generates position data for each rotational position of the dial 130 into a digital signal.

The encoder 14 is connected to one input terminal of a comparator 15 and also to the other input terminal of the comparator 15 via a register serving as a temporary storage device.

Here, the register is the position data of the dial 13 before operation, and the dial 13 used to correct the previous dimming data.
The position data of the dial 13 is temporarily stored as a digital signal, and each time the data correction is completed, the stored contents are rewritten with the position data of the dial 13 used for the data correction.

Further, the comparator 15 compares the output of the register 16 and the output of the encoder. From this comparison, the direction of rotation of the dial 13 is determined, and an increase/decrease output is generated depending on the direction of rotation at this time.

A data increase/decrease circuit 17 is connected to the comparator 15.

The data increase/decrease circuit 17 reads out the corresponding dimming data from the storage device 11, increases or decreases the data according to the output of the comparator 15, and writes the data into the storage device 11 again.

Next, the operation of the apparatus configured as above will be explained.

1. If it becomes necessary to modify the dimming data while on air, specify the memory position where the modification is required and rotate the dial 13.

Then, the encoder 14 generates a digital output corresponding to this rotational position.

This digital output is compared with the output of register 16 by comparator 15.

1. If an increased output is generated by comparing the output of the encoder 14 and the output of the register 16, the data increase/decrease circuit 1
7 reads out the corresponding dimming data from the storage device 11, increases the data according to the output of the comparator 15, and writes it back to the storage device 11 to complete the data correction.

Of course, when the comparator 15 generates a decreasing output by comparing the output of the encoder 14 and the output of the register 16, the data can be corrected in the decreasing direction in accordance with this output.

Here, to explain this data correction work in more detail, if the position data of the dial 13 is "P1", the corresponding dimming data of the storage device 11 is
50".

In this state, specify the position data of dial 13 as “1”.
2", the stored content of the register 16 is 11" of the position data of the dial 13 used for the previous data correction, so the comparator 15 generates an increased output of 1+1".

Then, the data increase/decrease circuit 11 generates an output "51" which is the sum of "50" corresponding to the dimming data in the storage device 11 and the 1+1" increase output of the comparator 15 plus the rotary valve of the redial 13. This is then provided to the storage device 11.

As a result, the dimming data in the storage device 11 is corrected to correspond to "51".

In the same way, specify the position data of dial 13 by 1 and 2.
When changing from "to 4", the content of register 16 at this time is the position data of dial 13 used for the previous correction "2".
'', the comparator 15 generates an increased output of 1+2''.

Then, in the data increase/decrease circuit 17, the comparator 15 changes to "51" corresponding to the dimming data of the storage device 11 that was corrected last time.
Since '+2'' is added, the dimming data in the storage device 15 is corrected to correspond to '53''.

However, with this configuration, data can be corrected simply by operating the dial, so unlike conventional methods, the fader position can be adjusted once to the storage device at 11 to match the level, and then the fader can be adjusted as desired. Modification of dimming data can be made much easier than when operating at position 1.

Furthermore, since data correction is determined by the amount of rotation of the dial, it is possible to respond stably to both slow operations required for subtle data changes and quick operations required for sudden corrections.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications within the scope without changing the gist.

For example, the register 16, comparator 15, and data amplification circuit 17 described above may be replaced by a general-purpose processor.

As described above, according to the present invention, it is possible to provide a light control device in which the light control data can be easily corrected and the operating speed can be arbitrarily obtained.

[Brief explanation of the drawings] Figure 1 is a block diagram showing an example of a conventional light control device, Figure 2 is a block diagram showing an example of a conventional light control device;
The figure is a block diagram showing one embodiment of the present invention. 1.11... Storage device, 2, 14... Position encoder, 3... Fader, 4, 12... Light control output control device, 13... Dial, 15... Comparator, 16・・・
・Register, 17...Data increase/decrease circuit.

Claims (1)

[Claims] 1. A storage device that stores dimming data, an operating object that can be operated in two directions, a temporary storage device that temporarily stores position data of the operating object before operation, and position data of the operating object after operation, and the above. a comparator that generates an increase/decrease signal for the dimming data by comparing the position data with the position data of the temporary storage device;
A light control device comprising: a data increase/decrease circuit for increasing/decreasing data in the storage device according to the output signal of the comparator.