JPH03250593A - Lighting control apparatus - Google Patents

Abstract

PURPOSE:To adjust luminance of a lighting load to be constant with easy operation by selecting conversion parts having different light adjusting properties for each of light adjusting output circuits and controlling the lighting load according to the light properties different in lighting loads. CONSTITUTION:When transmission control data is received in a light adjusting terminal apparatus 3 from a main operational board 1 through a transmission cable 2, the terminal apparatus 3 determines the kind of the lighting appliances 5 based on the load king selection designating data, reads out or computes the light adjusting output from a data table 3 of a light adjusting property conversing means 14, a light adjusting signal is produced by a light adjusting signal producing means 15, and the signal is put out by a light adjusting signal output means 16. Consequently, even if the properties of appliances 14 are different, the light adjusting properties are made same and luminance is easily made constant.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a lighting control device that can accommodate lighting loads with different dimming characteristics.

(Prior art) Conventionally, even when a lighting fixture with a louver is used and a lighting fixture with a louver removed, or a lighting fixture with high output characteristics and a lighting fixture with normal type characteristics are used together, the same lighting fixtures are generally used. Controlled by optical characteristics.

Therefore, if lighting fixtures with different light output characteristics are mixed together, the brightness and dimming characteristics will differ for each lighting fixture.

For this reason, lighting control devices are known that are equipped with a plurality of circuits having a plurality of different dimming characteristics corresponding to a plurality of output characteristics so as to maintain constant brightness even among lighting devices having different output characteristics. There is.

This lighting control device selects a circuit corresponding to the type of load for each type of lighting load, connects it selectively using a selection jumper, etc., and sets the dimming characteristics corresponding to the type of lighting load. .

(Problem to be solved by the invention) However, when changing to a lighting load with different dimming characteristics due to changes in the indoor layout, or when installing or removing louvers, it is necessary to change the entire control device or adjust the control device. Changing the optical characteristics has the problem of complicated operations.

The present invention has been made in view of the above-mentioned problems, and the invention as claimed in claim 1 provides an illumination device that can keep the brightness of a lighting load constant with easy operation even when using lighting loads with different dimming characteristics. The object of the present invention is to provide a control device, and the invention according to claim 2 further provides a lighting control device that can match the dimming characteristics of one lighting load with the dimming characteristics of another lighting load. With the goal.

[Structure of the invention]

(Means for Solving the Problems) The invention according to claim 1 is a lighting control device that controls dimming of a lighting load according to a dimming signal from a dimming controller, wherein the dimming controller A dimming characteristic converter having a plurality of connected dimming output circuits, a plurality of dimming characteristic converting units that convert the dimming characteristics of a plurality of different lighting loads into desired dimming characteristics, and the dimming characteristic. A selection means is provided for selecting a dimming characteristic converter of the converting means for each of the dimming output circuits.

The invention according to claim 2 is the invention according to claim 1,
The selection means matches the dimming characteristics of a lighting load connected to one dimming output circuit with the dimming characteristics of a lighting load connected to another dimming output circuit.

(Function) According to the invention as set forth in claim 1, the selection means selects a different dimming characteristic for each dimming output circuit according to the different dimming characteristics of the lighting load, and the lighting load is characterized by the dimming means according to this dimming characteristic. The invention according to claim 2 is the invention according to claim 1,
The selection means matches the characteristics of the lighting load connected to one dimming output circuit with the dimming characteristics of the lighting load connected to the other dimming output circuit.

(Example) Hereinafter, one example of the lighting control device of the present invention will be described with reference to the drawings.

In FIG. 1, 1 is a main operation panel, and this main operation panel 1 is
It is connected via a two-wire transmission line 2 to a dimming terminal device 3 as a dimming controller, and this dimming terminal device 3 is connected to a lighting device as a lighting load for each channel as a plurality of dimming output circuits. 4 is connected. Further, the dimming terminal device 3 includes a dimming level adjustment switch 5 that changes the dimming level of the lighting fixture 4 and a type discrimination switch that selects the dimming characteristic according to the dimming characteristic of the lighting fixture 4, for example, determining the type of ballast. device 6 is connected.

In addition, the dimming terminal device 3 uses a signal output from the type discriminator 6 to input the load type from the main operation panel 1. A dimming data input means 12 for inputting a correction due to deterioration or a dimming level, or a dimming level set by the dimming level adjustment switch 5, connected to the load type discrimination means II and the dimming data input means 12, These load type discrimination means 11 and dimming data input means 12
Calculate the dimming output by calculating the data from, or
A ROMSRA in which the dimming characteristics of a plurality of lighting fixtures 4 are set in advance according to the input from the dimming data input means 12.
a dimming output calculation means 14 which has a plurality of data tables 13 such as M, and has a function as a dimming characteristic conversion means for selecting a dimming output according to the data of the dimming characteristic selected by the load type discrimination means 11; A dimming signal output generating means 15 generates a dimming signal according to data from the dimming output calculating means 14, and the dimming signal generated by the dimming signal output generating means 15 is sent to the lighting equipment 4 for each channel. It is provided with a dimming signal output means 16 for outputting.

Next, the operation of the above embodiment will be explained.

First, transmission control data is transmitted from the main operation panel 1 to the dimming terminal 3 via the transmission line 2. This transmission control data is
For example, as shown in FIG. 3, dimming terminal specification data specifying the dimming terminal 3, dimming channel specification data specifying which channel of the lighting fixture 4 of the specified dimming terminal 3, Lighting equipment 4 discriminated by type discriminator 6
Load type selection designation data that specifies the type of the lighting equipment 4 and dimming control gradation data that sets the dimming gradation of the lighting fixture 4, or data from which this dimming control gradation data is removed as shown in FIG. It is composed of.

When the dimmer terminal 3 receives these transmission control data from the main operation panel 1, the dimmer terminal 3 selects the type of the lighting fixture 4 using the load type selection designation data, as shown in FIG. In step 1), the dimming output is successively output or calculated from the data table 13 of the dimming output calculation means 14 according to the type.Step 2), and the dimming signal is generated in the dimming signal output generating means 15.Step 3) , outputs a dimming signal from the dimming signal output means 16 (step 4).

In this way, even if the lighting fixture 4 has different dimming control data, for example, lighting fixture A with high output type characteristics or lighting fixture A with normal type characteristics, both of them are linear as shown in the standard C shown in FIG. Furthermore, even if the characteristics of the lighting equipment 4 are different, the illuminance can be unified by matching the dimming characteristics of the high output type with the normal type as shown in FIG.

Further, the main operation panel 1 may not be used, and the lighting equipment 4 may be controlled only by the dimming terminal 3.

Further, instead of the determining means, a changeover switch may be used as a selection means that manually performs switching according to the dimming characteristics of the lighting fixture 4.

Furthermore, the data table 13 may not store the data itself for each dimming characteristic, but may store formulas for calculating the data.

〔Effect of the invention〕

According to the invention of claim 1, the selection means selects a different dimming characteristic converter for each dimming output circuit according to the different dimming characteristics of the lighting load, and the dimming means adjusts the lighting load according to the dimming characteristic converting section. Therefore, even if lighting loads with different dimming characteristics are used, the brightness of the lighting loads can be kept constant with easy operation.

Further, according to the invention of claim 2, the selection means further includes:
Since the characteristics of the lighting load connected to one dimming output circuit match the characteristics of the lighting load connected to the other dimming output circuit,
The brightness of the dimming characteristics of different lighting loads can be matched.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the lighting control device of the present invention, FIG. 2 is a block diagram showing the same dimming terminal device, and FIG.
4 and 4 respectively show the transmission control data as above, FIG. 5 is a flowchart showing the operation of the dimming controller as above, FIG. 6 is a graph showing that the characteristics are constant, and FIG. 7 is dimming. It is a graph showing matching characteristics. 3... Dimming terminal device as a dimming controller, 4... Lighting fixture as a lighting load, 11... Load type discrimination means as a selection means, 13... Data table as a dimming characteristic converter, 14 . . . Dimming output calculation means as a dimming characteristic conversion means; 16 . . . Dimming signal output means as a dimming output circuit. Yu-ta” 1-

Claims (2)

[Claims] (1) In a lighting control device that controls dimming of a lighting load according to a dimming signal from a dimming controller, the dimming controller includes: a plurality of dimming output circuits to which the lighting loads are connected; and a plurality of different dimming output circuits. a dimming characteristic converter having a plurality of dimming characteristic converters that convert the dimming characteristic of the lighting load into desired dimming characteristics; and a dimming characteristic converter of the dimming characteristic converting means to be connected to the dimming output circuit. 1. A lighting control device characterized by comprising a selection means that can be selected for each lighting control device. (2) A claim characterized in that the selection means matches the dimming characteristics of a lighting load connected to one dimming output circuit with the dimming characteristics of a lighting load connected to another dimming output circuit. Item 1
The lighting control device described.