JPH0693390B2 - Lighting control system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a lighting control system suitable for collectively remotely controlling blinking and dimming of many lighting fixtures.

[Conventional technology]

In recent years, with the introduction of OA equipment, demand for not only automatic lighting of lighting fixtures but also a good visual environment is increasing. Among them, automatic blinking of lighting equipment means, for example, lighting equipment of a predetermined group is controlled to blink at a predetermined time according to the schedule of the day, or in response to a daylight sensor, an intrusion sensor, a door key, or the like. It is to control the blinking of the appropriate lighting equipment, and a good visual environment is to maintain the illuminance and glare of the lighting equipment appropriately according to the work content and the type of room, and to obtain the desired illuminance as necessary. To get it.

FIG. 3 is a block diagram showing the configuration of a conventional lighting control system that performs such control. In the figure, a dimming control terminal device 2, an on / off control terminal device 3 and a wall switch 4 are connected to a main operation panel 1 as an operation device via a transmission line 71. In this case, the on / off control terminal 3 and the wall switch 4 are provided corresponding to a predetermined number of dimming lighting fixtures 61 to 6n forming one control group,
Another on / off control terminal and a wall switch are provided corresponding to the dimming luminaire of a control group (not shown). On the other hand, each of the dimming luminaires 61 to 6n has a power supply terminal and a dimming control terminal, of which the dimming control terminal is common to the first output terminal of the dimming control terminal device 2 via the transmission line 72. The power supply terminals are individually connected to the output terminals of the on / off control terminal device 3 via the transmission line 73.

Here, the main operation panel 1 processes setting data of the wall switch 4, a time scheduler (not shown), operation switches, a program card, etc., and transmits on / off control data and dimming data of the dimming lighting fixtures 61 to 6n. To do. The dimming control terminal 2 receives the dimming data, generates a dimming control signal for each control group, and adds the dimming control signal to the dimming control terminals of the dimming lighting fixtures 61 to 6n via the transmission line 72. is there. Further, the on / off control terminal 3 receives the on / off control data and controls on / off of the power supply circuits connected to the illumination power supply 5 by the power supply terminals of the dimming lighting fixtures 61 to 6n. Further, the wall switch 4 transmits the ON / OFF setting data to the main operation panel 1.

With this configuration, when the main operation panel 1 transmits the on / off control data and the dimming data to which the address of the dimming lighting fixture is added based on the setting data of the time scheduler, etc., the on / off control terminal device 3 By reading this, the power supply circuit of the dimming lighting fixtures 61 to 6n is controlled to be turned on and off, and the dimming control terminal 2 reads the dimming data, and a rectangular wave dimming control in which the cycle is constant and the duty ratio is changed. Signals are continuously generated and added collectively to the dimming control terminals of the dimming lighting fixtures 61 to 6n. As a result, blinking control of the dimming luminaires 61 to 6n of one control group set corresponding to a predetermined illumination area and collective dimming control are performed. The wall switch 4
Is for setting the blinking state of the lamps 71 to 7n. When the setting data with an address is sent to the main operation panel 1, the main operation panel 1 correspondingly outputs the on / off control data and the dimming data. Send out. In addition, dimming control of the dimming lighting fixtures 61 to 6n is also performed by an operation switch (not shown) provided on the main operation panel 1 or a sensor or the like that detects the state of an electric lock connected to the main operation panel 1. Is possible.

[Problems to be solved by the invention]

In the conventional dimming control system described above, centralized control becomes extremely easy by installing the main operation panel 1 in a manager's room or the like, but on the other hand, the dimming lighting equipment 61 to 6n Even if there is a decrease in luminous flux and a decrease in luminous flux due to dirt, it is not easy to correct the data when designing a building, and it is difficult to always maintain the "appropriate illuminance" required with the intelligentization of buildings in recent years. There was a point.

The present invention has been made to solve the above problems, and it is possible to correct the decrease in the luminous flux of the dimming lighting fixture with the passage of time without changing the setting value of the operating device. It is an object of the present invention to provide a lighting system capable of ensuring “an appropriate illuminance”.

[Means for solving problems]

The dimming control system according to the present invention stores the luminous flux lowering characteristic of the lamp and the luminous flux lowering characteristic due to dirt of the dimming lighting fixture, and secures the initial illuminance according to the elapsed time based on the stored value. And a dimming control terminal for inputting dimming data from the operating device to generate a dimming control signal, and for correcting and transmitting the dimming control signal according to the illuminance correction value. It is equipped with a vessel.

[Action]

In this invention, when the illuminance correction value calculation device calculates the illuminance correction value that secures the initial illuminance according to the passage of time, the dimming control terminal device corrects and outputs the dimming control signal. The amount of decrease in the luminous flux of the dimming luminaire with the passage of is corrected, so that "appropriate illuminance" can be always secured without changing the setting value of the operating device.

〔Example〕

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention, and particularly shows only a portion different from the conventional apparatus of FIG. In the figure, the illuminance correction value calculation device 8 has a time means 81 for sequentially outputting a time signal whose value increases in accordance with the passage of time, and a luminous flux reduction characteristic of the lamp with the passage of time of the dimming lighting fixture. A memory 82 stored for each device, a memory 83 for storing the light flux reduction characteristics due to dirt that progresses over time according to the device, and the output value of the clock means 81 based on the data stored in these memories. Each time a predetermined number of changes, the illuminance correction value for maintaining the initial illuminance is calculated, and the calculation means 84 for adding and outputting both correction values is provided. Further, the dimming control terminal device 2a inputs the dimming data transmitted from the transmission line 71, and generates a dimming control signal of a rectangular wave whose period is constant and only the duty ratio changes in accordance with the input data. An optical control signal generation unit 21 and an illuminance correction unit 22 that corrects the dimming control signal generated here according to the output of the illuminance correction value calculation device 8 are provided.

The operation of the present embodiment configured as described above will be described below with reference to the luminous flux characteristics of FIG.

First, in a general dimming luminaire, the luminous flux of the lamp itself decreases according to the time of use, and the lamp and the reflecting plate are contaminated and the luminous flux decreases as time passes.
In a relatively good environment such as an intelligent building, and with a dimming lighting fixture that is turned on in a predetermined time zone, it is easy to predict dirt that corresponds to mere elapsed time and decrease in luminous flux of the lamp that corresponds to actual usage time. can do. The memory 82 stores the luminous flux lowering characteristic of the lamp with the actual use time, and similarly, the memory 83 stores the luminous flux lowering characteristic corresponding to mere passage of time. Every time the output value of the clock means 81 changes by a predetermined value, the calculation means 84
A dimming control terminal calculates a correction value for compensating for a decrease in luminous flux of the lamp itself and a correction value for compensating for a decrease in luminous flux due to dirt every one month, and adds an illuminance correction value obtained by adding both correction values. Add to vessel 2a.

Next, the dimming control signal generation unit 21 uses the transmission line as described above.
It receives the dimming data of 71 and outputs a rectangular wave dimming control signal. The illuminance correction unit 22 delays the trailing edge of these dimming control signals according to the illuminance correction value of the illuminance correction value calculation device 8 and outputs the delayed trailing edge. An actual circuit of the temperature correction unit 22 is, for example, Japanese Patent Publication No. 48-10899 or Japanese Utility Model Publication No.
It is possible to use the circuit disclosed in Japanese Patent Publication No.-20070.

FIG. 2 is a curve showing the luminous flux lowering characteristics of, for example, an exposure fixture, a bottom opening fixture, and a bottom closing fixture among various dimming lighting fixtures.
As indicated by A, B, and C, the calculating means 74 calculates the illuminance correction values α, β, and γ so as to maintain the initial illuminance of 100%. Then, the illuminance correction values α, β, γ and the illuminance correction value for the reduction of the luminous flux of the lamp corresponding to the usage time (not shown) are added and output.

As a result, light flux reduction correction is performed for each type of dimming lighting fixture, and each dimming lighting fixture can be constantly maintained at "appropriate illuminance".

〔The invention's effect〕

As is apparent from the above description, according to the present invention, an illuminance correction value calculation device that calculates an illuminance correction value that secures an initial illuminance according to the passage of time, and dimming based on this illuminance correction value Since it is equipped with a dimming control terminal that corrects and sends out the control signal, the decrease in the luminous flux of the dimming lighting fixture with the passage of time is corrected, so that the setting value of the operating device is not changed at all times. There is an effect that "appropriate illuminance" can be secured.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention,
FIG. 2 is a diagram showing the relationship between elapsed time and luminous flux for explaining the operation of the embodiment, and FIG. 3 is a block diagram showing the configuration of a conventional dimming control system. 1 ... Main operation panel, 2, 2a ... Dimming control terminal device, 3 ... On / off control terminal device, 8 ... Illuminance correction value calculation device, 61-
6n: Dimmable lighting equipment.

Claims (1)

[Claims] 1. A predetermined voltage is input to each power supply terminal,
Moreover, a large number of dimming luminaires for dimming by inputting a dimming control signal to the dimming control terminal are divided into a predetermined number of control groups, and individual on / off control data transmitted from the operating device and the control group. In a dimming control system for dimming control of the dimming lighting fixture based on dimming data for each, the luminous flux lowering characteristic of the lamp with the passage of time of the dimming lighting fixture and the luminous flux lowering characteristic due to dirt are stored. , An illuminance correction value calculation device that calculates an illuminance correction value corresponding to the passage of time so as to secure an initial illuminance based on the stored value, and input the dimming data to generate a dimming control signal, A lighting control system comprising: a dimming control terminal device that corrects the dimming control signal according to the illuminance correction value and sends the corrected dimming control signal to the dimming lighting fixture of the control group.