JPH0997682A - Dimmer table and dimmer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the possibility that an accident to destroy a load occurs by making it feasible to directly input a voltage level applied to the load from a dimmer table by an operator. SOLUTION: When a voltage level input mode is assigned from an operator in a dimmer table 1 through an input part not illustrated, after that, a voltage level inputted by the operator from the input part is converted into a corresponding control level by using a built-in dimmer characteristic data to output it to a dimmer board 2. The dimmer board 2 converts a control level inputted from the dimmer table 1 into a voltage level by using the same dimmer characteristic data as that of being built in the dimmer table to connect a lighting power source of the same voltage level as the obtained voltage level to a load 3a, thereby reducing the possibility that an overvoltage is applied to the load 3a and consequently an accident to destroy it occurs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimming console for inputting dimming control information for dimming a lamp load by an operator, and a dimming device for performing dimming control of the lamp load using the dimming console. Regarding

[0002]

2. Description of the Related Art A conventional light control device has a structure as shown in FIG. That is, when the operator inputs a control level (control rate information) that determines the illuminance of the lamp load 3 from the dimming desk 1, the dimming desk 1 receives a control voltage (0 to 5V) of 256 gradations corresponding to the input control level. Or φ to 10 V) is output to the dimmer board 2. The dimmer board 2 has built-in dimming characteristic data as shown in FIG. 6, and the control voltage (corresponding to the control level) input from the dimming table 1 is handled using this dimming characteristic data. After converting into an output voltage, a lighting power source having the same voltage as the obtained output voltage is output to the lamp load 3 to light the lamp load. Thereby, the lamp load 3 can be turned on with the illuminance corresponding to the control level input from the dimmer table 1 by the operator.

Looking at the dimming characteristic data shown in FIG. 6, the relationship between the control level and the output voltage is not a linear relationship but a non-linear relationship. This is because the relationship between the control level and the human visual sensitivity is made linear by such a non-linear relationship so that the dimming of the lamp load 3 is performed with a natural feeling.

By the way, the lamp load 3 has a rating of 100.
In addition to the V load, for example, a load rated at 24V may be used. If a voltage of 24 V or more is applied to such a load 3, the load 3 will be destroyed. Therefore, the operator operating the dimming desk 1 should input a control level while being careful not to apply a voltage of 24 V or more to the load 3. Must. In such a case, the relationship between the control level and the output voltage applied to the load 3 is not linear as shown in FIG.
That is, the control level 24% does not correspond to the output voltage 24V, and the control level 24% corresponds to the output voltage 40V. Since this 40V is applied to the load 3, the load 3 is destroyed. It will be.

That is, if the load 3 is dimmed using the control level as described above, the output voltage applied to the load is different from the voltage that the operator thinks, so that the above-mentioned accident may occur. It was very good. Further, since such a light control device is used on a stage or the like, the lamp load 3 is likely to be installed at a high place, and when the lamp load 3 is destroyed, it is not easy to replace it. When the above-mentioned accident occurs, there is a problem that extra work is required for a person in charge of lighting.

Therefore, the voltage level to be applied to the load 3 can be directly input from the light control desk 1 so that the above accident is less likely to occur and the light control device using this light control desk. Development is required.

[0007]

As described above, in the conventional light control device, the operator inputs the control level from the light control table as the light control information for determining the illuminance of the load. Since the level and the voltage actually applied to the load are not linear, there is a problem that the load is destroyed by applying an overvoltage exceeding the rating of the load in some cases.

Therefore, the present invention has been made to solve the above problems, and allows an operator to directly input a voltage level applied to a load, thereby causing a possibility of an accident in which the load is destroyed. An object of the present invention is to provide a light control table that can be reduced in number and a light control device using the light control table.

[0009]

According to a first aspect of the present invention, an input section for inputting voltage information; a storage section for storing data showing a correspondence relationship between voltage information and control rate information; the input section Conversion means for converting the voltage information input from the converter into corresponding control rate information by referring to the data stored in the storage section; and an output interface for outputting the control rate information obtained by the conversion means to the outside. It has and.

With such a configuration, when the operator inputs voltage information from the input section, the conversion means responds to the voltage information input from the input section by referring to the data stored in the storage section. It is converted to control rate information to be output, and this is output to the outside from the output interface.

According to a second aspect of the present invention, input mode designating means for designating a mode for inputting voltage information or a mode for inputting control rate information; and inputting information of the type designated by the input mode designating means. An input section; a storage section that stores data indicating a correspondence relationship between voltage information and control rate information; and voltage information input from the input section with reference to the data stored in the storage section Conversion means for converting corresponding control rate information; output interface for outputting information to the outside; when voltage information is input from the input section, control rate information obtained by the conversion means is output from the output interface When the control rate information is output to the outside and the control rate information is input from the input unit, switching control is performed to directly output the control rate information from the output interface to the outside. And comprising a switching control unit.

With this configuration, when the operator inputs voltage information or control rate information from the input section according to the input mode designated by the input mode designating means, the switching control means receives the voltage information from the input section. When input, the control rate information obtained by converting the input voltage information by the conversion means is output from the output interface to the outside, and when the control rate information is input from the input unit, the control rate information is input. Is directly output from the output interface.

According to a third aspect of the present invention, the storage section stores a plurality of data indicating a plurality of types of correspondence relationship between the voltage information and the control rate information, and allows the operator to select one of the data. Selecting means, and the converting means is configured to convert the voltage information into corresponding control rate information with reference to the data in the storage section selected by the selecting means.

With such a configuration, since the operator selects one data from the plurality of data stored in the storage section by the selection means, the conversion means refers to the data selected by the selection means. Then, the voltage information is converted into corresponding control rate information.

According to a fourth aspect of the present invention, there is provided a setting means for setting an upper limit value of the control rate information output from the output interface, the setting means converting the voltage information input from the input section by the conversion means. The control rate information obtained by doing so is set as the upper limit value, and the control rate information above the upper limit value is not output from the output interface to the outside.

With this configuration, when the operator sets the upper limit value of the control rate information output from the output interface by the setting unit, the setting unit sets the voltage information input by the operator from the input unit. The control rate information obtained by conversion by the conversion means is set as the upper limit value, and the control rate information equal to or higher than the upper limit value is not output from the output interface to the outside.

According to a fifth aspect of the present invention, the light control desk according to any one of the first to fourth aspects is controlled; the voltage of the power supply supplied to the load is controlled based on the control rate information output from the light control desk. And a dimmer panel that

With such a configuration, the dimmer panel controls the voltage of the power supply to be supplied to the load based on the control rate information output from the dimmer table according to any one of claims 1 to 4. Control.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a light control desk and a light control device using the light control desk of the present invention. 1 is a dimming table into which an operator inputs a control level or a voltage level (voltage information) for determining the illuminance of the load 3,
2 is a dimmer panel that generates a load supply power source having a voltage corresponding to a control signal input from the dimmer table 1 and outputs it to a load 3. 3 is dimmer controlled by the dimmer panel 2. Load.

FIG. 2 is a block diagram showing a detailed configuration example of the light control desk 1 shown in FIG. Reference numeral 11 is an input section for an operator to input dimming control information such as voltage level or control level, and 12 is a ROM storing dimming characteristic data.
Alternatively, a storage unit such as a RAM or the like, and 13 performs control such as conversion of a voltage level input from the input unit 11 into a control level C
PU, 14 is a display device such as a CRT that displays the input voltage level or control level, and 15 is an A / D converter (output interface) that converts the control level output from the CPU 13 into a digital signal.

FIG. 3 is a block diagram showing a detailed configuration example of the dimmer board 2 shown in FIG. Reference numeral 21 is a D / A converter for converting a digital control signal input from the dimming desk 1 into an analog control signal, and 22a and 22b are based on the voltage level output from the dimming control unit 24 and are supplied from the lamp lighting power supply 24. By controlling the inflow angle of the current of the thyristor by a thyristor or the like, a thyristor dimmer that generates a lighting power source having the same voltage as the above voltage level and outputs this to the loads 3a and 3b; An AC power supply circuit for supplying an AC power supply for turning on the LED, 24 is an analog control signal input from the D / A converter 21, that is, a control level is converted into a control voltage level by using built-in dimming characteristic data, and this is converted into a thyristor. It is a dimming control unit that outputs to the dimmers 22a and 22b.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. When the operator who operates the dimmer table 1 wants to input the voltage level as the dimmer control information corresponding to the illuminance of the loads 3a and 3b, the dimmer table 1
2 is operated to specify the voltage level input mode (or control level input mode) to the CPU 13, for example. After that, the operator inputs from the input unit 11 a voltage level, for example, which determines the illuminance of the loads 3a and 3b from the input unit 11.

In response to this, the CPU 13 executes step 40.
In 1, it is determined whether the input mode is the voltage level input mode or the control level input mode. If it is the voltage level input mode, the process proceeds to step 402, and if it is the control level input mode, the process proceeds to step 403. . When the process proceeds to step 402, the CPU 13 converts the voltage level input from the input unit 11 into a corresponding control level by referring to the dimming characteristic data (see FIG. 6) stored in the storage unit 12, and performs this control. The level is output to the A / D converter 15. The A / D converter 15 converts the input control level into a digital control signal and outputs it to the dimmer board 2.

The CPU 13 displays on the display unit 14 whether the input mode designated by the input unit 11 is the voltage level input mode or the control level input mode. Control is performed to display the input voltage level on the display unit 14 and display the control level input from the input unit 11 on the display unit 14 in the control level input mode.

On the other hand, when the input mode is the control level, the CPU 13 proceeds to step 403 and outputs the control level input from the input unit 11 to the A / D converter 15 as it is. In this case as well, the A / D converter 15 converts the input control level into a digital control signal and outputs it to the dimmer board 2.

The dimmer board 2 converts the digital control signal sent from the dimmer table 1 into an analog signal by the D / A converter 21 shown in FIG. 3, and outputs this to the dimming controller 24. . The dimming controller 24 converts the input control signal (corresponding to the control level) into a corresponding voltage level based on the dimming characteristic data as shown in FIG. 6, and this voltage level is, for example, a thyristor dimmer 22a. Output to. The dimming controller 24 outputs the above voltage level to the thyristor dimmer 22a or 22b based on the system-specific signal added to the control signal obtained from the D / A converter 21. Shall be decided.

The thyristor dimmer 22a controls the inflow angle of the current flowing from the AC power supply circuit 23 on the basis of the input voltage level so that the voltage input from the AC power supply circuit 23 is equal to the voltage level. Then, the AC power supply having this voltage is output to the load 3a. Therefore, the dimmer table 1
When a voltage level is input from the AC voltage source, an AC power supply having the same voltage as this voltage level is applied from the dimmer board 2a to the load 3a. The same applies to the system of the thyristor 22b and the load 3b.

According to this embodiment, the operator can directly input the same voltage level as the voltage applied from the light control desk 1 to the load 3a or the load 3b to be controlled for light control. This can reduce the possibility that the operator makes a mistake in inputting a voltage level from the dimmer table 1 that exceeds the rated voltage of the load 3a, so that a low-rated lamp is connected as the load 3a. Also, it is possible to reduce the probability of occurrence of an accident such as breaking the lamp by applying a voltage higher than the rated voltage to the lamp.

Further, in this example, since it is possible to easily switch between the control level input and the voltage level input from the light control desk 1, the light control is performed according to the human visual sense. If desired, the conventional control level can be used for input, so that the flexibility of the apparatus can be improved.

The dimming characteristic data stored in the storage unit 12 of the dimming desk 1 described in the above embodiment and the dimming characteristic built in the dimming control unit 24 of the dimmer board 2 are described. The data must be the same, but depending on the device,
Some dimming control units 24 of the dimmer board 2 include a plurality of types of dimming characteristic data, and an operator can designate any one of these to obtain various dimming characteristics. There is something you can do.

When the dimmer table 1 is connected to such a dimmer board 2, the dimmer characteristic data stored in the storage section 12 of the dimmer table 1 is also built in the dimmer board 2. As a plurality of types of dimming characteristic data that are the same as the existing dimming characteristic data, the same data as the dimming characteristic data selected on the dimmer panel 2 can be selected on the dimming desk 1 side as well. Input section 11
4 and the processing of step 402 in FIG. 4 is performed with reference to the dimming data selected by the selecting means, the dimming table 1 can be applied to the above-mentioned dimmer board 2 as well. Can be fully prepared.

Further, in the light control desk 1 described in the above embodiment, the control level preset from the input unit 11 is set in the storage unit 12 as the upper limit value, and the control above the upper limit value is performed. When the level is input from the input unit 11, the CPU
Reference numeral 13 is an A / D control level which is higher than the input upper limit value.
Some have a protection function that prevents them from being output to the converter 15 and prevents them from being input to the dimmer board 2. When such a function is provided in this example and the input mode is the voltage input mode, the CPU 13 stores the voltage level input as the upper limit value from the input unit 11 in the storage unit 12 described above. By converting the dimming characteristic data into a control level and setting the control level obtained by this conversion in the storage unit 12 as the upper limit value, the above-mentioned protection function can be sufficiently exerted. In this case, the voltage level set as the upper limit value may be displayed on the display unit 14.

As a result, as for the function of setting the upper limit control level output from the dimmer table to the dimmer panel 2, the upper limit is input at the voltage level from the input section 11 to operate the function without any trouble. be able to. Moreover, when the upper limit is input as a voltage level, the operator can immediately set an appropriate value as the upper limit only by matching the voltage level with the rated voltage of the load 3.

[0034]

As described above, according to the invention of claim 1, the operator can directly input the voltage level applied to the load, can easily recognize the range of the voltage applied to the load, and can detect the load due to overvoltage or the like. The possibility of destruction can be reduced. According to the invention of claim 2, the operator can easily select whether to input the voltage level or the control level, and perform the dimming control using any convenient type of information. Therefore, the flexibility of the device can be improved. According to the invention of claim 3, even if the voltage level is input as the dimming control information, it is possible to effectively operate the function of selecting a plurality of types of dimming characteristics for the load. According to the fourth aspect of the present invention, also for the setting function of the upper limit value of the control level output to the dimmer panel, the upper limit value can be input at the voltage level to effectively operate this function. According to the invention of claim 5, since the load power supply having the same voltage level as the voltage level inputted by the operator from the dimmer table is applied to the load from the dimmer panel, there is a possibility that the load is destroyed due to overvoltage or the like. Can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a light control device of the present invention using a light control table of the present invention.

FIG. 2 is a block diagram showing a detailed configuration example of the light control table shown in FIG.

FIG. 3 is a block diagram showing a detailed configuration example of the dimmer board shown in FIG.

FIG. 4 is a flowchart showing the operation of the CPU of FIG.

FIG. 5 is a block diagram showing an example of a light control device using a conventional light control table.

6 is a characteristic diagram showing an example of dimming characteristic data built in the dimmer panel shown in FIG.

[Explanation of symbols]

 1 ... Dimmer table 2 ... Dimmer panel 3 ... Lamp load 11 ... Input unit 12 ... Storage unit 13 ... CPU 14 ... Display device 15 ... A / D converter 21 ... D / A converter 22 ... Thyristor dimmer 23 ... AC power supply circuit 24 ... Dimming control unit

Claims (5)

[Claims] 1. An input unit for inputting voltage information; a storage unit for storing data indicating a correspondence relationship between voltage information and control rate information; and voltage information input from the input unit in the storage unit. A dimming device comprising: a conversion unit for converting the stored data into corresponding control rate information; and an output interface for outputting the control rate information obtained by the conversion unit to the outside. Table. 2. Input mode designating means for designating a mode for inputting voltage information or a mode for inputting control rate information; an input section for inputting information of the type designated by the input mode designating means; voltage A storage unit storing data indicating a correspondence relationship between the information and the control rate information; control rate information corresponding to the voltage information input from the input unit by referring to the data stored in the storage unit Conversion means for converting to; an output interface for outputting information to the outside; when voltage information is input from the input section, the control rate information obtained by the conversion means is output to the outside from the output interface, When the control rate information is input from the input unit, there is provided switching control means for performing switching control for directly outputting the control rate information from the output interface to the outside. A dimmer table that is equipped with. 3. The storage unit stores a plurality of data respectively indicating a plurality of types of correspondence relationship between the voltage information and the control rate information, and has a selection unit that allows an operator to select one of these data. The dimmer table according to claim 1 or 2, wherein the conversion means converts the voltage information into corresponding control rate information with reference to the data in the storage section selected by the selection means. 4. A setting means for setting an upper limit value of the control rate information output from the output interface, the setting means being obtained by converting the voltage information input from the input section by the conversion means. 3. The dimmer table according to claim 1, wherein control rate information is set as the upper limit value, and control rate information equal to or higher than the upper limit value is not output to the outside from the output interface. 5. A dimmer table according to any one of claims 1 to 4, and a dimmer panel for controlling a voltage of a power supply supplied to a load based on control rate information output from the dimmer table. A light control device comprising: