JP2001015270A - Dimming control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excellent dimming control system capable of preventing the energy saving rate from dropping without requiring the operator to go to a management room, etc., where the master unit is installed and make manipulation for temporary stop of the constant illuminance control from the master unit operation part and of eliminating the risk to give discomfort to any person existing in the place or influence the task. SOLUTION: A dimming control system 1 is composed of a master unit 2, a plurality of lightness measuring terminal units 4 to make communications with the master unit 2 and a dimming output terminal unit 5 and performs a constant illuminance control to generate the target lightness by outputting the result from calculation by the master unit 2 on the basis of the measurements of the lightness measuring terminal unit 4 to each luminaire 6 via the dimming output terminal unit 5. Further a constant illuminance control device is provided to operate interlocking with the external signal and interrupt or restitute the constant illuminance control.

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 monitoring and controlling a lighting load using communication such as time division multiplex transmission.

[0002]

2. Description of the Related Art Heretofore, a result of a calculation performed by a base unit has been output from a dimming output terminal to a lighting unit, and a lighting unit of the lighting unit has been set so as to have a target brightness previously input from an operation display unit of the base unit. 2. Description of the Related Art A dimming control system that performs illuminance constant control for dimming is known.

[0003]

However, in the dimming control system described above, for example, when it is not necessary to turn on all the lighting equipment and only a part of the lighting equipment needs to be turned on, for example, when cleaning a room, the illuminance constant control is performed. When this is done, it is determined that the set illuminance has not been obtained because the surroundings are dark, and as a result, there is a problem that the light is turned on at almost the maximum brightness even though it is unnecessary, and the energy saving efficiency is reduced. Therefore, in order to solve the problem, it was necessary to go to a control room where the master unit was installed, and to temporarily stop the constant illuminance control using the operation unit or the like of the master unit.

The purpose of the brightness measuring terminal of the dimming control system described above is to measure the brightness of the desk surface.
The brightness measurement terminal cannot be installed on the desk surface to measure the brightness, but is inevitably installed on the ceiling surface and measures the reflected light from the desk surface to estimate the brightness of the desk surface. For this reason,
In the case of a building that takes in sunlight at the window to save energy, the angle of incidence of sunlight is shallower at sunset when facing west, and at sunrise when facing east, and reflected light from adjacent buildings. The brightness measurement terminal directly touches the sensor unit and cannot measure the brightness correctly.As a result, it is not possible to perform proper control, causing discomfort to the people in the place or affecting the work. was there. Further, in the case of using external light having a shallow incident angle even when the brightness is measured correctly, there is a problem that the dimming output should be slightly increased, but it cannot be easily changed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first object of the present invention is to go to a control room or the like in which a parent device is installed and to perform a constant illuminance control with an operation unit of the parent device. A second object of the present invention is to provide an excellent dimming control system that can prevent a decrease in energy saving efficiency without performing a temporary stop operation. It is an object of the present invention to provide an excellent dimming control system that does not affect the operation of the light control system.

[0006]

According to the first aspect of the present invention, the illuminance constant control is interrupted and returned in conjunction with an external signal.

According to a second aspect of the present invention, the illuminance constant control is interrupted during a predetermined time period.

According to a third aspect of the present invention, the illuminance constant control is interrupted during a predetermined time period, and the output is faded to a predetermined output value.

According to a fourth aspect of the present invention, the illuminance constant control is interrupted during sunset or sunrise, and the output is faded to a predetermined output value.

According to a fifth aspect of the present invention, the illuminance constant control is interrupted during a sunset time period, the output value at night is stored, and the output value is faded to that value.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a dimming control system according to the present invention will be described with reference to FIGS.
3, 4, and 6 for the second embodiment.
7 for the third embodiment, FIG. 8 for the fourth embodiment, and FIG. 9 for the fifth embodiment, respectively.

[First Embodiment] As shown in FIG. 1, a dimming control system according to the present embodiment includes a master unit 2, a communication line 3,
It comprises a brightness measuring terminal 4, a dimming output terminal 5, and an external signal input terminal 7. The dimming output terminal 5 is connected to a lighting fixture 6, and the external signal input terminal 7 is a wall switch 8.
Connected to. As shown in FIG. 2, the parent device 2 includes a central processing unit 2a, an operation display unit 2b, a communication unit 2c, and a storage unit 2d. The communication unit 2c uses the brightness measurement terminal 4, the dimming output terminal, and the like. It exchanges data with the device 5 and the external signal input terminal device 7 through the communication line 3 by time division multiplex transmission.

Brightness measuring terminal 4 and dimming output terminal 5
Are set in advance in the operation display unit 2b, and the settings are stored in the storage unit 2d. Also, for each set of the brightness measurement terminal 4 and the dimming output terminal 5,
The basic setting illuminance of the illuminance is previously set similarly to, for example, 700 lx, and is stored in the storage unit 2d. The master unit 2 sequentially sends a measurement value return request to the plurality of brightness measurement terminal devices 4 to receive the measurement values, and receives the measurement values, the set illuminance in the storage unit 2d, and the same set of dimming output terminal devices. The central processing unit 2a uses the dimming output value of the dimming signal sent from 5 to the lighting fixture so that the measured value becomes the same as the set value.
Performs feedback control. That is, the set value 70
Illuminance constant control is performed so as to be 0lx.

However, the parent device 2 simultaneously sends a status return request to the external signal input terminal device 7 to receive the status data of the wall switch 8 as shown in FIG.
The feedback control, that is, the constant illuminance control, is interrupted only when F is recognized.

Thus, it is not necessary to turn on all the lighting fixtures, such as when cleaning a room. When some of the lighting fixtures are turned on, the wall switch 8 is turned off to perform constant illuminance control. As shown in FIG. 3B, the output value of the dimming output terminal 5 before the interruption is held, and when the state is finished, the wall switch 8 is turned on to return the constant illuminance control.

[Second Embodiment] As shown in FIG. 4, a dimming control system according to the present embodiment includes a master unit 2, a communication line 3,
It comprises a brightness measurement terminal 4 and a dimming output terminal 5, and the dimming output terminal 5 is connected to a lighting fixture 6. The parent device 2 includes a central processing unit 2a and an operation display unit 2 as shown in FIG.
b, a communication unit 2c, a storage unit 2d, a timer unit 2e, and a control execution availability storage unit 2f. The communication unit 2c connects the brightness measurement terminal 4, the dimming output terminal 5, and the communication line 3. Data is transmitted and received by time-division multiplexing via the Internet.

As in the first embodiment described above, the brightness measurement terminal 4 and the dimming output terminal 5 are associated in advance on the operation display unit 2b, and the settings are stored in the storage unit. 2d. In addition, the brightness measurement terminal 4
The basic set illuminance of the illuminance is similarly set in advance, for example, to 700 lx in advance, and stored in the storage unit 2d. In addition, the illuminance constant control interruption time zone C is T1 (18:00) to T2 (19:00).
Are set in the same manner, and stored in the storage unit 2d. The control execution availability storage unit 2f initially stores "illuminance constant control enabled".

The master unit 2 sequentially sends a measurement value return request to the plurality of brightness measurement terminals 4 to receive the measurement values, and if the control execution storage unit 2f is controllable, the measured values are:
The central processing unit uses the set illuminance stored in the storage unit 2d and the dimming output value of the dimming signal sent from the same set of dimming output terminals 5 to the lighting fixture so that the measured value becomes the same as the set value. Feedback control is performed by 2a. That is, 7
00lx, but the control execution storage unit 2f
Does not perform control if "illuminance constant control is impossible".

The master unit 2 manages the current time by a timer unit 2e. As shown in FIG. 6, when the start of the constant illuminance control interruption time zone T1 (18:00), the control execution storage is performed. In the section 2f, "illuminance constant control is impossible" is stored, and the illuminance constant control is interrupted.
, The control output value at point A, which is the starting point of the control, is maintained.

T2 at which the constant illuminance control interruption period C ends.
At (19:00), "illuminance constant control is possible" is stored in the control execution storage unit 2f, and the illuminance constant control is restored.
As a result, the constant illuminance control can be interrupted during a time period during which brightness cannot be measured correctly, such as at sunset, and proper control cannot be performed as a result.

[Third Embodiment] A dimming control system according to the present embodiment has the same configuration as that of the above-described second embodiment, and the master unit 2 is similarly provided with a brightness measurement terminal at the communication unit. Vessel 4,
Data is exchanged with the dimming output terminal 5 by time division multiplex transmission via the communication line 3.

As in the first embodiment, the brightness measurement terminal 4 and the dimming output terminal 5 are set in advance on the operation display unit 2b, and the settings are stored in the storage unit. ing. In addition, for each set of the brightness measurement terminal 4 and the dimming output terminal 5, a basic setting illuminance of, for example, 700
1x, and the illuminance constant control interruption time period C shown in FIG. 7 is similarly set as 18:00 to 19:00, and is stored in the storage unit 2d.

In addition, when the night standard output value is 80%, the fade output value in the illuminance constant control interruption time zone C is set to 8
It is set to 0% and stored in the storage unit. In the control execution possibility storage unit 2f, "illuminance constant control possible" is initially stored.

In the same manner as in the second embodiment, master device 2 sequentially sends measurement value return requests to a plurality of brightness measurement terminal devices 4 to receive measurement values, and control execution availability storage section 2f stores “illuminance”. If “constant control is possible”, the measured value and the storage unit 2
In accordance with the set illuminance at d and the dimming output value of the dimming signal sent to the lighting equipment from the same set of dimming output terminals, the central processing unit 2a sets the measured value to be equal to the set value Perform feedback control. That is, the control is performed so as to be 700 lx, but the control is not performed if the control execution storage unit 2f indicates “Illuminance constant control impossible”.

The master unit 2 manages the current time by a timer unit 2e. If the current time reaches T1 (18:00) at the beginning of the constant illuminance control interruption time zone C as shown in FIG. The storage unit 2f stores "Illuminance constant control impossible" and interrupts the illuminance constant control. If the output value A at that time is 50%, the fade output value is 80%, so the difference is 30%. Since the designated time zone width is 60 minutes, the 1% change time is calculated as 60 minutes / 30% = 2 minutes, and thereafter, every 2 minutes, 51%, 52%. . . The output is increased by 1%.

T2 at which the illuminance constant control interruption time period ends
At (19:00), controllability is stored in the control execution storage unit, and the illuminance constant control is restored. This makes it possible to suspend constant illuminance control during a time period when brightness cannot be measured correctly, such as at sunset, and as a result, proper control cannot be performed, and the output value before and after sunset becomes smooth over time. Changes to

[Fourth Embodiment] The dimming control system according to the present embodiment has the same configuration as that of the above-described second embodiment. Vessel 4,
Data is exchanged with the dimming output terminal 5 by time division multiplex transmission via the communication line 3.

As in the first embodiment, the brightness measurement terminal 4 and the dimming output terminal 5 are set in advance on the operation display unit, and the settings are stored in the storage unit 2d. ing. In addition, for each set of the brightness measurement terminal 4 and the dimming output terminal 5, a basic setting illuminance of, for example, 700
1x, and when the nighttime standard output value is 80%, the fade output value in the illuminance constant control interruption time zone C is set to 80% and stored in the storage unit 2d.

In the case of the present embodiment, unlike the third embodiment described above, the illuminance constant control interruption time zone C is set from 30 minutes before sunset to 30 minutes after sunset, and the storage unit. Is stored in In addition, the latitude and longitude of the place where this system is installed are set and stored in the storage unit 2d. In the control execution possibility storage unit 2f, "illuminance constant control possible" is initially stored.

As in the second embodiment, the parent device 2 sequentially sends measurement value return requests to a plurality of brightness measurement terminals 4 to receive the measurement values, and the control execution storage unit 2f stores the "illuminance constant". If "controllable", the measured value, the set illuminance in the storage unit 2d, and the dimming output value of the dimming signal sent from the same set of dimming output terminals 5 to the lighting fixture are used. In order to make the measured value equal to the set value, feedback control is performed by the central processing unit 2a. That is, control is performed so as to be 700 lx, but if control is impossible, control is not performed.

The master unit 2 manages the current time and date by the timer unit 2e. When the date changes, the master unit 2 obtains the median time from the longitude of the storage unit 2d and obtains the sunshine time from the latitude. Today's sunset time from the median time and sunshine time,
Find the sunrise time. Here, assuming that the sunset time is 18:30, as shown in FIG. 8, at 18:00 at the beginning of the illuminance constant control interruption time zone C, the control execution availability storage unit 2f stores that the control is not possible, and If the constant illuminance control is interrupted and the output value A at that time is 50%, the difference is 30% because the fade output value is 80%, and the designated time zone width is 60 minutes, so the change is 1%. Time is calculated as 60 minutes / 30% = 2 minutes, and thereafter, every 2 minutes, 51%, 52
%. . . The output is increased by 1%. At 19:00 when the illuminance constant control suspension time zone C ends at 19:00,
“Constant illuminance control possible” is stored in the control executability storage unit 2f, and the illuminance constant control is restored.

As a result, during a time period during which brightness cannot be measured correctly, such as at sunset, and proper control cannot be performed, the illuminance constant control can be interrupted. It changes smoothly over time.

[Fifth Embodiment] The dimming control system of the present embodiment has the same configuration as that of the above-described second embodiment, and the master unit 2 also has a brightness measurement terminal in the communication unit. Vessel 4,
Data is exchanged with the dimming output terminal 5 by time division multiplex transmission via the communication line 3.

As in the first embodiment, the brightness measurement terminal 4 and the dimming output terminal 5 are previously associated on the operation display unit, and the settings are stored in the storage unit. I have. In addition, the basic setting illuminance of the illuminance is set to, for example, 700
Ix is similarly set and stored in the storage unit.

Further, as in the fourth embodiment, the illuminance constant control interruption time period is set to be from 30 minutes before sunset to 30 minutes after sunset, and the latitude of the place where the system is installed, The longitude is also set and stored in the storage unit. In the control execution possibility storage unit 2f, illuminance constant control availability is stored at the beginning.

As in the second embodiment, master device 2 sequentially sends measurement value return requests to a plurality of brightness measurement terminal devices 4 to receive the measurement values, and control execution availability storage section 2f performs control. If, the measured value is set based on the measured value, the illuminance set in the storage unit, and the dimming output value of the dimming signal sent to the lighting fixture from the same set of dimming output terminals. Feedback control is performed by the central processing unit to make the same as the value. That is, control is performed to 700 lx, but control is not performed if the control execution possibility storage unit 2f cannot perform constant illuminance control.

The parent device 2 manages the current time and date by a timer unit 2e. When the date changes, the median time is obtained from the longitude of the storage unit 2d, and the sunshine time is obtained from the latitude. The sunset time and the sunrise time of the day are obtained from the median time and the sunshine time. Here, it is assumed that the sunset time is 18:30. In addition, for example, the average value of the nighttime output values of the past three days is calculated and stored as a nighttime standard output value. Here, it is assumed that it is 80%.

When it becomes T1 (18:00) at the beginning of the constant illuminance control interruption time zone C shown in FIG. 9, the parent device 2 stores "constant illuminance control impossible" in the control executability storage unit 2f. Assuming that the constant control is interrupted and the output value A at that time is 50%, the night standard output value is 80%, the difference is 30%, and the designated time zone width is 60 minutes, so that 1% The change time is calculated as 60 minutes / 30% = 2 minutes, and thereafter, every 2 minutes, 51%, 52%. . . The output is increased by 1%. When it becomes T2 (19:00) at which the illuminance constant control interruption time zone C ends, controllability is stored in the control execution storage unit 2f and the illuminance constant control is returned.

As a result, the constant illuminance control can be interrupted even during a time period in which the brightness cannot be measured correctly at the time of sunset or the like, so that proper control cannot be performed, and the output value before and after sunset takes time. And change smoothly.

It is needless to say that the above-mentioned dimming control system does not use communication, and the same function is required even if the functions necessary for one unit are integrated.

[0041]

According to the first aspect of the present invention, the constant illuminance control is interrupted and returned in conjunction with an external signal, so that the constant illuminance control is interrupted by, for example, operating a wall switch when cleaning a room. It is possible to go to the control room where the parent device is installed, and to prevent the reduction of energy saving efficiency without having to temporarily stop the constant illuminance control using the operation part of the parent device. .

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, in order to interrupt the constant illuminance control in a predetermined time zone, sunlight is taken in by the window to save energy. In the case of a building where there is a building, reflected light from an adjacent building directly hits the sensor unit of the brightness measurement terminal and the brightness cannot be measured correctly, and as a result the time cannot be controlled properly and the brightness is measured correctly Even if it is, when the incident angle is shallow, it is better to slightly increase the output in the case of using external light.
This has the effect of not causing any discomfort to the people at the place or affecting the work.

According to the invention of claim 3, in addition to the effect of the invention of claim 1, furthermore, the control of constant illuminance is interrupted in a predetermined time zone and the output is faded to a predetermined output value. If you set a normal night output value when using at sunset, the output value gradually changes over time when going from daytime to nighttime, which may give a sense of discomfort to people in that place There is an effect that the work is not affected and the work is not affected.

According to the invention of claim 4, in addition to the effect of the invention of claim 3, furthermore, the illuminance constant control is interrupted at the time of sunset or sunrise and the output is faded to a predetermined output value. There is no need to reset the sunset or sunrise time that changes with the season.

According to the fifth aspect of the invention, in addition to the effect of the fourth aspect, the constant illuminance control is interrupted during sunset or sunrise, and the output value at night is stored. Since the value is faded, there is an effect that it is not necessary to perform a troublesome operation of checking and setting a normal nighttime output value.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a dimming control system according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a parent device of the invention.

FIG. 3 is a diagram showing an example of changing the set illuminance according to the invention.

FIG. 4 is a configuration diagram of a dimming control system according to a second embodiment of the present invention.

FIG. 5 is a configuration diagram of a parent device of the invention.

FIG. 6 is a diagram showing an example of a change in the set illuminance according to the invention.

FIG. 7 is a diagram illustrating a change example of a set illuminance in a third embodiment of the dimming control system according to the present invention.

FIG. 8 is a diagram illustrating an example of a change in set illuminance in a fourth embodiment of the dimming control system according to the present invention.

FIG. 9 is a diagram illustrating an example of a change in set illuminance in a fifth embodiment of the dimming control system according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 dimming control system 2 master unit 2a central processing unit 2b operation display unit 2c communication unit 2d storage unit 2e clock unit 2f control execution availability storage unit 3 communication line 4 brightness measurement terminal 5 dimming output terminal 6 lighting equipment 7 External signal input terminal 8 Wall switch

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 3K073 AA03 AA14 AA54 AA57 AA62 AA66 BA28 CB01 CC03 CC11 CC12 CC13 CC25 CE13 CE17 CF13 CG15 CG42 CH21 CJ22 CM07 5K048 BA07 DA02 DC03 EB02 EB10 FC01 HA01 HA02 HA02

Claims (5)

[Claims] 1. A result calculated by a master device based on a measured value of a brightness measurement terminal device, comprising a master device, a plurality of brightness measurement terminals for communicating with the master device, and a dimming output terminal device. In the dimming control system that outputs the light to the lighting fixture through the dimming output terminal and performs the constant illuminance control to achieve the target brightness, the constant illuminance control device that interrupts and returns the constant illuminance control in response to an external signal is provided. A dimming control system comprising: 2. The dimming control system according to claim 1, wherein the constant illuminance control device interrupts the constant illuminance control during a predetermined time period. 3. The dimming control according to claim 1, wherein the constant illuminance control device interrupts the constant illuminance control during a predetermined time period and fades to a predetermined output value. Control system. 4. The dimming control system according to claim 1, wherein the illuminance constant control device interrupts the illuminance constant control during a sunset or sunrise time period and fades to a predetermined output value. . 5. The constant illuminance control device interrupts the constant illuminance control during sunset, stores an output value at night, and fades to a predetermined output value based on the output value. The dimming control system according to claim 1, wherein: