JP3365252B2 - Dimming control system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dimming control system for controlling dimming of a lighting load.

[0002]

2. Description of the Related Art A conventional dimming control system will be described with reference to FIG. FIG. 4 is a block diagram showing the configuration of the light control system.

The dimming control system controls the luminaire so that the illuminance on the desk surface in the room is constant, and as shown in FIG. 4, the dimming control device 1, the illuminance measuring terminal device 2, the dimming control. Output terminal 3, dimmer switch 4, lighting fixture 5
Is configured.

The illuminance measuring terminal device 2 is for measuring the illuminance on the desk surface, and transmits the measured illuminance to the dimming control device 1 as the illuminance value S1. The illuminance measuring terminal 2 outputs the most accurate value when it is installed on the desk top surface, but it is usually installed on the ceiling surface, etc. in consideration of wiring difficulty and changes in the layout of the room. ing. Therefore, the illuminance measuring terminal 2 measures the illuminance on the desk top surface by the reflected light from the desk top surface. Therefore, the illuminance value S1 output from the measurement terminal device 2 is different from the actual illuminance on the desk surface, and the product of the illuminance value S1 and the correction coefficient A described later is close to the actual illuminance.

The dimming switch 4 has a switch for raising the output of the luminaire 5 and a switch for lowering it. The dimming control device 1 outputs the raising signal S4 or the descending signal S5 according to the operation of the button. Output to.

The dimming control device 1 has a transmission / reception unit 1a, a control unit 1b, a correction coefficient storage unit 1c, a correction coefficient setting unit 1d, a display unit 1e, and a forced setting unit 1f.

The transmitter / receiver 1a outputs the illuminance value S1 received from the illuminance measuring terminal 2 to the controller 1b, and transmits the dimming output value S2 input from the controller 1b to each dimming output terminal 3. . In addition, when the transmitter / receiver 1a receives the rising signal S4 or the falling signal S5 from the dimming switch 4, the transmitting / receiving unit 1a outputs the dimming output value S2 input from the forced setting unit 1f to each dimming output terminal. Send to the vessel 3.

The control unit 1b sets the estimated illuminance value M on the basis of the illuminance value S1 and the correction coefficient A so that the illuminance on the desk surface in the room where the lighting fixture 5 is installed becomes the preset target illuminance value N. The estimated illuminance value M and the target illuminance value N are calculated.
The light control output value S2 is determined from the above, and the light control output value S2 is output to the transmitting / receiving unit 1a (hereinafter, this operation is referred to as constant illuminance control). The dimming output value S2 represents how many [%] of the maximum dimming output the lighting device 5 should have, with the maximum dimming output of the lighting fixture 5 being 100 [%].

When the compulsory setting unit 1f receives the rising signal S4 or the descending signal S5 from the dimming switch 4, it temporarily stops the illuminance constant control performed by the control unit 1b and forcibly sets the dimming output value S2. It raises or lowers and outputs the raised or lowered dimming output value S2 to the transmitting / receiving unit. Therefore, when the dimming switch 4 is operated, the output of the lighting fixture 5 is forcibly increased or decreased.

The correction coefficient storage unit 1c stores a correction coefficient A representing the ratio between the illuminance value S1 and the actual illuminance on the desk surface. The correction coefficient A is not limited to the ratio and may be an offset value. in this case,
The estimated illuminance value M is obtained by adding an offset value to the illuminance value S1.

The correction coefficient setting unit 1d is for changing the correction coefficient A. The display unit 1e displays the correction coefficient A, the estimated illuminance value M, the target illuminance value N, and the like, and is configured by a CRT display or a liquid crystal display.

The dimming output terminal 3 has a duty ratio signal S based on the dimming output value S2 transmitted from the dimming control device 1.
3 is output to the lighting device 5. The luminaire 5 is lit with brightness based on the duty ratio signal S3.

The dimming control system configured as described above operates as follows.

First, during normal operation, the illuminance measuring terminal device 2 measures the illuminance on the desk surface by reflected light to determine the illuminance value S.
1 is transmitted to the dimming control device 1. The control unit 1b of the dimming control device 1 calculates the dimming output value S2 so that the estimated illuminance value M obtained by multiplying the illuminance value S1 by the correction coefficient A matches the target illuminance value N. For example, the estimated illuminance value M is 350 [lux]
If the target illuminance value N is 700 [lux] and the current dimming output value is 30 [%], the estimated illuminance value M of 350 [lux] is the target illuminance value N of 700 [lux]. Therefore, the control unit 1b determines the new dimming output value S2 to be 60%, which is twice the current dimming output value.

Then, the control section 1b controls the dimming output value S2.
To the dimming output terminal 3. The dimming output terminal 3 is
The duty ratio signal S3 based on the dimming output value S2 is output to the lighting fixture 5, and the lighting fixture 5 outputs the duty ratio signal S3.
Lights based on.

As described above, the dimming control device 1 performs the illuminance constant control so that the illuminance on the desk surface is always constant.

Further, the compulsory setting section 1f is provided with a dimmer switch 4
When the rising signal S4 or the falling signal S5 is received from the control unit, the illuminance constant control performed by the control unit 1b is temporarily stopped, and the dimming output value S2 is forcibly increased or decreased, and the increased or decreased dimming is performed. The output value S2 is output to the transmitting / receiving unit. Therefore,
When the dimming switch 4 is operated, the output of the luminaire 5 is forcibly increased or decreased, and the illumination state desired by the operator can be created.

Next, the adjustment of the correction coefficient A will be described. Since the illuminance measuring terminal device 2 measures the illuminance by the reflected light from the desk top surface, if the reflectance of the desk top surface or the like differs due to a layout change or the like, a different correction coefficient A may be required. . That is, even if the illuminance constant control is performed so that the target illuminance value N and the estimated illuminance value M match, if the estimated illuminance value M is different from the actual illuminance on the desk surface, unintended dimming output Therefore, it will be controlled to be constant.

Therefore, the first worker carries the wireless device and the illuminance meter to the desk in the room equipped with the illuminance measuring terminal 2 and measures the illuminance B on the desk surface. The first worker informs the second worker of the illuminance B to the second worker in a manager room or the like in which the dimming control device 1 is installed by a wireless device. The second worker obtains the ratio between the illuminance value S1 output from the illuminance measuring terminal 2 displayed on the display unit 1e and the illuminance B to calculate the correction coefficient A. Then, the second worker inputs the correction coefficient A by the correction coefficient setting unit 1d to input the correction coefficient storage unit 1c.
To memorize. By obtaining the estimated illuminance value M using the correction coefficient A adjusted in this way, the estimated illuminance value M and the actual illuminance B become substantially equal.

As described above, the correction coefficient A is adjusted, the control unit 1b reads the correction coefficient A from the correction coefficient storage unit 1c, and performs the constant illuminance control using the correction coefficient A.

[0021]

However, in the dimming control system as described above, when the correction coefficient A is adjusted as described above, two workers are required and the setting work is laborious. There was a problem that it required.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a dimming control system capable of adjusting a correction coefficient without much labor. To do.

[0023]

In order to solve the above problems, the present invention provides an illuminance measurement for measuring the ambient illuminance and outputting the measured illuminance as an illuminance value. A terminal unit, a control unit that calculates an estimated illuminance value from the illuminance value and a correction coefficient, and determines a dimming output value from the estimated illuminance value and a predetermined target illuminance value, and a dimming output value based on a rising signal or a falling signal. And a dimming control device including a correction coefficient setting unit that sets the correction coefficient, and a dimming signal that outputs an ascending signal or a descending signal that instructs the dimming output of the lighting fixture to increase or decrease. In a dimming control device having an optical switch and a dimming output terminal device that outputs a signal for controlling a dimming output of a lighting device based on the dimming output value, the dimming control device is in an operation mode. Is above the dimmer switch A signal or a falling signal to the forced setting unit, and in the setting mode, a signal distribution unit that outputs the rising signal or the falling signal to the correction coefficient setting unit, and the correction coefficient setting unit is based on the rising signal or the falling signal. It is characterized in that the correction coefficient is set by setting.

The invention according to claim 2 is characterized in that the signal distributing section switches between an operation mode and a setting mode based on an operation of a dimming switch.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing the configuration of a dimming control system. FIG. 2 is a front view of the dimmer switch. FIG. 3 is a block diagram showing the configuration of a dimming control system having a plurality of lighting fixtures and the like. In FIG. 1, the same parts as those of the dimming control system described in the above-mentioned conventional technique are designated by the same reference numerals, and detailed description of the same parts will be omitted.

The dimming control system of the present embodiment shown in FIG. 1 is different from the dimming control system described in the above-mentioned prior art in that it has the following features.

First, the signal distribution unit 6 is provided, and the transmission / reception unit 1a outputs the rising signal S4, the falling signal S5, and the mode switching signal S7 to the signal distribution unit 6, and the signal distribution unit 6 in the operation mode. Is configured to output the rising signal S4 or the falling signal S5 from the light control switch 4 to the forced setting unit 1f, and to output the rising signal S4 or the falling signal S5 to the correction coefficient setting unit 1d in the setting mode. .

Secondly, the correction coefficient setting section 1d is controlled by the rising signal S.
4 or the falling signal S5 is used to set the correction coefficient A.

As shown in FIG. 2, the dimming switch 4 has a raising switch 4a, a lowering switch 4b, an on / off switch 4c, and an on / off indicating lamp 4d.

The dimming switch 4 transmits an ascending signal S4 to the dimming control device 1 when the ascending switch 4a is depressed, and sends a descending signal S5 to the dimming control device 1 when the descending switch 4b is depressed. . Further, the dimming switch 4 sends an on / off signal S6 to the dimming control device 1 when the on / off switch 4c is pressed. The dimming control device 1 controls the output of the dimming output terminal 3 on / off by the on / off signal S6.

The dimming switch 4 is a rising switch 4a.
When the lowering switch 4b and the on / off switch 4c are simultaneously pressed, the mode switching signal S7 is transmitted to the dimming control device 1.

The on / off indicator lamp 4d is for displaying the on / off state of the dimming output terminal device 3.
If is on, the red LED is turned on, and if the dimming output terminal 3 is off, the green LED is turned on. The on / off indicator lamp 4d blinks when the dimming switch 4 outputs the mode switching signal S7 to switch the mode of the dimming control device 1 to the setting mode, and the dimming switch 4 displays the mode switching signal S7. Is output again and the mode of the dimming control device 1 is switched to the operation mode, the blinking display is stopped and the continuous lighting display is performed.

The signal distribution unit 6 has an operation mode and a setting mode, and switches the mode each time the mode switching signal S7 is received. When the rising signal S4 or the falling signal S5 is input in the operation mode, the signal distribution unit 6 outputs the rising signal S4 or the falling signal S5 to the forced setting unit 1f. In addition, when the rising signal S4 or the falling signal S5 is input in the setting mode, the signal distributing unit 6 outputs the rising signal S4 or the falling signal S5 to the correction coefficient setting unit 1d. The mode in the initial state of the signal distribution unit 6 is the operation mode.

The correction coefficient setting unit 1d includes a signal distribution unit 6
When the rising signal S4 is input from the correction coefficient storage unit 1 as the new correction coefficient A, the change amount D is subtracted from the correction coefficient A.
Store in c. The variation D has a smaller value than the correction coefficient A, and for example, a value such as "0.01" or "0.1" is used. Further, when the falling signal S5 is input from the signal distribution unit 6, the correction coefficient setting unit 1d adds the change amount D to the correction coefficient A and stores it in the correction coefficient storage unit 1c as a new correction coefficient A.

Next, the operation of the dimming control system configured as described above will be described. First, when the signal distribution unit 6 is in the operation mode, the control unit 1b performs illuminance constant control based on the illuminance value S1. At this time, when the up signal S4 or the down signal S5 is transmitted from the dimming switch 4, the transmission / reception unit 1a receives the signal and outputs it to the signal distribution unit 6. Upon receiving the rising signal S4 or the falling signal S5, the signal distribution unit 6 outputs the signal to the compulsory setting unit 1f. When the compulsory setting unit 1f receives the rising signal S4 or the falling signal S5, it temporarily stops the illuminance constant control performed by the control unit 1b to forcibly increase or decrease the dimming output value S2, and then the rising or falling. The adjusted dimming output value S2 is output to the transmitting / receiving unit.

Next, the adjustment of the correction coefficient A will be described. First, the worker goes to a room where lighting equipment is installed, and the worker installs the illuminance meter on the desk surface and moves to the wall surface where the dimming switch 4 is installed. Next, the operator simultaneously presses the up switch 4a, the down switch 4b, and the on / off switch 4c. Then, the dimmer switch 4
Sends a mode switching signal S7 to the dimming control device 1 and causes the on / off indicator lamp 4d to blink. When the transmission / reception unit 1a of the dimming control device 1 receives the mode switching signal S7, it outputs the mode switching signal S7 to the signal distribution unit 6. Upon receiving the mode switching signal S7, the signal distribution unit 6 switches the mode to the setting mode.

Next, the operator visually checks the illuminance meter, and if the value indicated by the illuminance meter does not reach the desired illuminance, depresses the raising switch 4a. The dimmer switch 4 uses the rising signal S4
Is transmitted to the dimming control device 1.

When the transmission / reception unit 1a of the dimming control device 1 receives the rising signal S4, the signal distribution unit 6 receives the rising signal S4.
Is output. When the signal distribution unit 6 receives the rising signal S4, it outputs it to the correction coefficient setting unit 1d.

When the correction coefficient setting unit 1d receives the rising signal S4, it reads the correction coefficient A from the correction coefficient storage unit 1c, subtracts the variation D from the correction coefficient A, and creates a new correction coefficient A as the correction coefficient storage unit. It is stored in 1c.

On the other hand, the control unit 1b carries out the illuminance constant control even during the adjustment of the correction coefficient A, and obtains the estimated illuminance value M by multiplying the correction coefficient A and the illuminance value S1 received from the transmitting / receiving unit 1a. The dimming output value S2 is calculated from the estimated illuminance value M and the target illuminance value N, and is transmitted to the dimming output terminal device 3 via the transmitting / receiving unit 1a.

Therefore, when the operator depresses the raising switch 4a, the correction coefficient A decreases and the increased correction coefficient A
Since the illuminance is controlled to be constant based on, the dimming output of the luminaire 5 increases. The operator again looks at the illuminance meter installed on the desk top surface to check whether the value of the illuminance meter is the desired illuminance, and if the desired illuminance is not reached yet, presses the rising switch 4a again. .

After the above operation is repeated, if the value of the illuminance meter on the desk surface reaches the desired illuminance, the operator raises the up switch 4a, the down switch 4b, and the on / off switch 4.
Press c at the same time. Then, the dimming switch 4 sends the mode switching signal S7 to the dimming control device 1 and continuously lights the on / off indicator lamp 4d. When the transmission / reception unit 1a of the dimming control device 1 receives the mode switching signal S7, it outputs the mode switching signal S7 to the signal distribution unit 6. Upon receiving the mode switching signal S7, the signal distribution unit 6 switches the mode to the operation mode. Thus, the adjustment work of the correction coefficient A is completed. If the illuminance indicated by the illuminometer is equal to or higher than the desired illuminance, the lowering switch 4b may be pressed in the same manner as the above-mentioned work.

Since the correction coefficient A can be adjusted as described above, the worker can perform the work by himself, and the time for the adjustment work can be shortened and the labor can be reduced.

Further, the dimming switch 4 is the raising switch 4a.
Since the mode switching signal S7 is output by simultaneously pressing the down switch 4b and the on / off switch 4c, it is not necessary to newly provide a mode switching switch.

In the present embodiment, the mode switching signal S7 is described as being output by the dimming switch 4, but the dimming control device 1 is provided with a switch and the mode is switched by the switch. You may In this case, the operator first operates the switch of the dimming control device 1 to set the signal distribution unit 6 to the setting mode, and then goes to the room where the lighting fixture 5 or the like is installed to work. . Therefore, there is an advantage that there is no fear that the mode is erroneously switched due to an erroneous operation by the user in the room.

Further, in the present embodiment, the dimming output terminal 3, the illuminance measuring terminal 2 and the dimming switch 4 are described as one each, but the number is not limited to one, and As shown in FIG. 3, a system having a plurality of these may be used. In this case, the dimming control device 1 grasps the correspondence relationship between each dimming output terminal device 3, the illuminance measuring terminal device 2 and the dimming switch 4, and the correction coefficient A is also held for each lighting measuring terminal device 2. do it.

[0047]

Since the dimming control system of the present invention is constructed as described above, in the invention of claim 1,
The signal distribution unit outputs the rising signal or the falling signal from the dimmer switch to the forced setting unit in the operation mode, and outputs the rising signal or the falling signal to the correction coefficient setting unit in the setting mode, and the correction coefficient setting unit Sets the correction coefficient based on the ascending or descending signal, so that an operator can adjust the correction coefficient by himself while looking at the illuminometer placed on the desk surface while staying in the room where the lighting equipment is installed. Therefore, there is an effect that it is possible to provide a dimming control system that can shorten the time for adjustment work and reduce labor.

According to the second aspect of the present invention, since the signal distribution section switches between the operation mode and the setting mode based on the operation of the dimming switch, there is no need to newly provide a mode switching switch. Thus, it is possible to provide a dimming control system capable of adjusting the correction coefficient without requiring a special jig or the like.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a dimming control system of the present invention.

FIG. 2 is a front view of a dimmer switch.

FIG. 3 is a block diagram showing a configuration of a dimming control system having a plurality of lighting fixtures and the like.

FIG. 4 is a block diagram showing a configuration of a conventional dimming control system.

[Explanation of symbols]

1 Dimming control device 1b Control unit 1f Forced setting section 1d Correction coefficient setting section 2 Illuminance measurement terminal 3 dimming output terminal 5 lighting equipment 4 dimmer switch 6 Signal distribution unit

Claims (2)

(57) [Claims] 1. An illuminance measuring terminal device for measuring ambient illuminance and outputting the measured illuminance as an illuminance value; an estimated illuminance value calculated from the illuminance value and a correction coefficient; and the estimated illuminance value and a predetermined target illuminance value. A dimming output value, a forced setting unit that raises or lowers the dimming output value based on a rising signal or a falling signal, and a correction coefficient setting unit that sets the correction coefficient. A control device, a dimming switch that outputs an ascending signal or a descending signal that directs an increase or decrease of the dimming output of the lighting fixture, and a signal that controls the dimming output of the lighting fixture based on the dimming output value. In the dimming control device having a dimming output terminal, the dimming control device outputs an ascending signal or a descending signal from the dimming switch to the forced setting unit in the operation mode,
In the setting mode, a signal distribution unit that outputs the rising signal or the falling signal to the correction coefficient setting unit is provided, and the correction coefficient setting unit sets the correction coefficient based on the rising signal or the falling signal. Dimming control system. 2. The dimming control system according to claim 1, wherein the signal distribution unit switches between the operation mode and the setting mode based on an operation of the dimming switch.