JPH11185975A - Dimming control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sufficient presentation effect without requiring the setting for labor and a considerable work quantity even in a large-scale system and without giving uncomfortableness even when the demand alarm signal is inputted. SOLUTION: This device 10 is provided with a plurality of measuring slave units 11, a plurality of dimming slave units 12, and a host unit 15 which holds the basic illuminance allocated to each of the dimming slave units 12 and the multiplying factor for changing the basic illuminance in the lump, changes each basic illuminance by utilizing the multiplying factor at the prescribed time, generates the dimming control value for matching the future measured value with the basic illuminance based on the basic illuminance of the dimming slave unit 12 or the calculated basic illuminance when the basic illuminance is multiplied by the multiplying factor, the measured value from the corresponding measuring slave unit 11 and the output value of the corresponding dimming slave unit 12 to a luminaire 13, and sends the dimming control value to the corresponding dimming slave unit 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a plurality of slave units such as a measuring slave unit (terminal) for measuring brightness (illuminance) and a dimming slave unit for dimming a lighting fixture have been used for communication such as time division multiplex transmission. There is known a dimming control device (dimming system) which is connected to a channel and further connected to a master unit to the communication channel.
This master unit controls the entire dimming system. To explain this control example, a dimming control signal (dimming control value) is set according to the basic illuminance and the measurement result (measured value) of each measuring slave unit. ) Is generated, and the dimming control value is transmitted to the corresponding dimming control device, thereby causing the dimming control device to perform dimming of the lighting device according to the dimming control value. Thus, the illuminance of the lighting fixture is maintained at a constant level of the basic illuminance. The basic illuminance is set in the system via an operation unit provided on the parent device.

[0003] In addition to the above configuration, the dimming system is further connected to a communication path with a signal input slave unit for inputting various alarm signals, a signal for obtaining a desired effect, and the like.
In some cases, control different from the above example is performed by the parent device in accordance with a signal input to the child device. For example, when a signal indicating a power outage is input, control is performed to turn on only the lighting fixtures corresponding to the capacity of the private power generator, and to turn off the other lights. Also, when a demand alarm signal issued according to the power consumption situation is input, control is performed to limit the dimming of the lighting fixture by each dimming slave to a level preset for the lighting load. Is done.

Although the dimming system cannot cope with the demand alarm signal as described above, Japanese Patent Laid-Open No.
Japanese Patent Application Laid-Open No. 4-86750 discloses an illumination control system that enables fine control that cannot be dealt with by automatic control based on a time schedule. In addition, Japanese Unexamined Patent Publication No.
Japanese Unexamined Patent Application Publication No. 9-80095 discloses a remote dimming system capable of simultaneously performing local dimming and centralized control by using a dimming switch, not delaying the response speed of other control monitoring operations, and increasing the response of the dimming operation. Is described.

Further, Japanese Patent Application Laid-Open No. 4-270597 discloses an air conditioner having a high degree of comfort at the time when it is necessary to calculate the comfort of the air conditioner from each air conditioner control information and to reduce the energy consumption. A building management device that suppresses the use of energy in order from the first is disclosed.

[0006]

However, as described above, in order for the dimming system to respond to a demand alarm signal or the like, it is necessary to set the above-mentioned limitation for each lighting fixture, and the system becomes large. When the scale becomes large, the number of setting points increases and the setting becomes troublesome, and when such setting is performed in consideration of the installation location and use of each lighting fixture, a considerable amount of work and time is required. come.

[0007] In order to solve such a problem, when a demand alarm signal or the like is input, for example, if the same limitation is imposed on the dimming of the luminaire by each dimming slave over the entire system, for example, In some places, the dimming output of the luminaire is 70% and the required illuminance is secured, and in another place the required illuminance is 30% and the dimming output is uniformly limited to 50%. Then, although the labor involved in the setting is eliminated, the illuminance distribution varies greatly depending on the position, which causes discomfort and causes another problem that a sufficient effect cannot be obtained.

The present invention has been made in view of the above circumstances, and does not require labor or a setting that requires a considerable amount of work even in a large-scale system, and gives an uncomfortable feeling even at a predetermined time when a demand alarm signal or the like is input. It is another object of the present invention to provide a dimming control device that can obtain a sufficient effect without producing any effect.

[0009]

The present invention for solving the above-mentioned problems comprises a plurality of light control means, a measuring means for measuring the illuminance of each of the plurality of light control means by light control, and a plurality of light control means. Basic illuminance holding means for holding the basic illuminance assigned to each of the light control means, and according to a predetermined signal from the outside,
Changing means for changing each of the plurality of basic illuminances at a constant multiplication factor, and sequentially for each of the dimming means, when the basic illuminance assigned to the dimming means or the basic illuminance is changed by the changing means Is provided with dimming control means for obtaining a dimming control value in accordance with the changed basic illuminance and the illuminance measured by the measuring means and sending the dimming control value to the dimming means.

In this configuration, since each of the plurality of basic illuminances is changed at a constant multiplication factor, a large-scale system does not need to be set with a large amount of trouble and a considerable amount of work, and a predetermined alarm signal such as a demand alarm signal is input. Sometimes, a sufficient effect can be obtained without giving any discomfort. In addition, the basic illuminance holding unit, the changing unit, and the dimming control unit,
Each of the plurality of light control means is provided in a light control slave device, and each of the plurality of measurement means is provided in a measurement slave device, and the master device is provided in the master device. Is
The configuration may be such that the plurality of light control subunits and the plurality of measurement subunits are communicably connected to each other. In this configuration, the basic illuminance for each dimming device is changed at a constant multiplication factor in response to a predetermined signal from the outside. Also, even when a demand warning signal or the like is input, a sufficient effect can be obtained without giving any discomfort.

The dimming means, the measuring means, the basic illuminance holding means, the changing means and the dimming control means are provided in a dimming control unit. May be connected to each other so as to be able to receive the predetermined signal. In this configuration, each of the plurality of dimming control units connected to each other changes the basic illuminance according to a predetermined signal from the outside, so that even large-scale systems do not require labor or a large amount of work. Thus, even at a predetermined time when a demand warning signal or the like is input, a sufficient effect can be obtained without giving any discomfort.

[0012]

FIG. 1 is a schematic diagram showing an embodiment of the present invention. The dimming control device 10 includes a plurality of measuring slave units (terminals) 11, a plurality of dimming slave units 12, a signal input slave unit 14, and a master unit 15, each of which is a communication path L for time division multiplex transmission. It is configured by being interconnected to. Further, a lighting fixture 13 is attached to each of the dimming slaves 12.

Each measuring slave 11 has a sensor of CdS (cadmium sulfide) or the like, measures the brightness (illuminance) in response to a request for returning the measured value from the parent device 15, and obtains the measurement result (measured value). To the parent device 15 (time division multiplex transmission on the communication path L). Each of the light control subunits 12 includes a master unit 15.
A dimming signal is generated in accordance with the dimming control value from the controller, and the dimming signal is transmitted to the lighting fixture 13 attached to the dimming slave device 12. Thereby, each lighting fixture 13 performs illumination according to the dimming signal from the corresponding dimming slave 12.

The signal input terminal 14 has terminals 141 and 142 for inputting two types of demand alarm signals of levels 1 and 2.
When a demand warning signal of any level is input from the outside, this is transmitted to the parent device 15. For example, the terminal 141 is provided on the base side of an unillustrated transistor whose emitter is grounded. When a demand alarm signal of level 1 is input to the terminal 141, the collector and the emitter of the transistor are turned on, and this on is detected. Thus, the input of the level 1 demand alarm signal to the terminal 141 may be detected. The same applies to the terminal 142.

FIG. 2 is a schematic configuration diagram of the parent device 15. The parent device 15 includes a communication unit 151, a storage unit 152 as a basic illuminance holding unit, an operation unit 153, a storage unit 154, a timer unit 155, and a central processing unit 156 as a changing unit and a dimming control unit. It is constituted by. The timer 155 measures time. Communication unit 151
Transmits and receives data to and from each of the plurality of measuring slaves 11, the plurality of light adjusting slaves 12, and the signal input slaves 14 by time division multiplex transmission.

The storage section 152 stores various data for managing and controlling the entire dimming control device 10. For example, each of the plurality of measurement subunits 11 corresponds to one of the plurality of dimming subunits 12, and this correspondence is stored. In addition, for each pair of the measuring slave 11 and the light adjusting slave 12 corresponding to each other (hereinafter referred to as “corresponding set”), a preset basic illuminance (for example, 700)
[Lx]) is stored. Also, a multiplication factor of 90% for the level 1 demand alarm signal and a multiplication factor of 80% for the level 2 demand alarm signal are stored.

The operation unit 153 is used to set a basic illuminance for each corresponding set, a multiplier for a demand alarm signal of each level, and the like. The storage unit 154 temporarily holds the basic illuminance for each corresponding set stored in the storage unit 152 in a normal state, while, at a predetermined time, that is, when a demand warning signal is input, a power corresponding to the level of the demand warning signal. The basic illuminance multiplied by the ratio is temporarily stored for each corresponding set.

The central processing unit 156 controls the entire dimming control device 10. This control example will be described with reference to FIG. 3 showing a state of feedback control described later. The measurement value return request is sequentially transmitted by the communication unit 151 toward the corresponding slave unit 11 for measurement, and the measurement value returned from the slave unit is captured via the communication unit 151. 154
To match future measured values to the basic illuminance from the basic illuminance of the corresponding set and the output value of the dimming signal sent from the dimmer 12 of the corresponding set to the corresponding lighting fixture 13. Is generated by calculation, and the generated dimming control value is transmitted to the corresponding set of dimming slaves 12 by the communication unit 151. Since this control is repeatedly performed, so-called feedback control is performed. The output value of the dimming signal may be fetched from the corresponding dimming slave 12 via the communication unit 151. However, the output value of the dimming signal is obtained from the dimming control value generated in the previous calculation. Since the output value is known, the generated dimming control value is stored in the storage unit 1 together with the basic illuminance of the corresponding set.
It is more preferable to temporarily hold the value at 54 and use the held previous dimming control value as a substitute for the output value of the dimming signal in that the arithmetic processing time is shortened.

At a predetermined time when the central processing unit 156 receives, via the communication unit 151, a notification that the level 1 demand alarm signal is being input from the signal input slave unit 14, the multiplication factor corresponding to this notification is received. 90% is read from the storage unit 152, the multiplier is multiplied by the basic illuminance of each corresponding set, and the multiplication result (for example, 700 × 0.9 = 6301 [lx]) is temporarily stored in the storage unit 154 for each corresponding set. Thereafter, the feedback control is performed. On the other hand, the central processing unit 156 notifies the communication unit 151 that the level 2 demand alarm signal has been input from the signal input slave unit 14.
At a predetermined time received via the storage unit 152, the multiplication factor corresponding to this notification is read from the storage unit 152, and the multiplication factor is multiplied by the basic illuminance of each corresponding set.
8 = 5601 [lx]) is temporarily stored in the storage unit 154 for each corresponding set, and thereafter, the feedback control is executed. When returning to normal time after the notification is gone, the central processing unit 156 causes the storage unit 154 to temporarily hold the basic illuminance for each corresponding pair stored in the storage unit 152 as it is.

Next, the basic operation of the dimming control device 10 of the present embodiment will be described. Since the operation of each corresponding set is the same, only one corresponding set (corresponding set A) will be described. First, a normal operation will be described. in this case,
The measurement slave unit 1 of the set A corresponds to the measurement value return request from the master unit 15.
When transmitted to 1, the illuminance is measured according to this request,
The measured value is returned.

When the returned measurement value is captured,
The basic illuminance of the corresponding set A and the output value of the dimming signal transmitted from the dimming slave 12 of the corresponding set A to the corresponding lighting fixture 13 are captured, and the dimming control is performed based on each of the captured values. A value is generated and transmitted to the light control subunit 12 of the corresponding set A. When the transmitted dimming control value is received, the dimming of the corresponding lighting fixture 13 by the dimming slave 12 of the corresponding set A is executed according to the dimming control value.

The above-described series of processing is repeated, and a certain level of illumination, which becomes the basic illuminance, is performed by the luminaire 13 attached to the light control subunit 12 of the corresponding set A. Next, an operation at a predetermined time will be described. When the level 1 or level 2 demand alarm signal is input, a notification to that effect is sent from the signal input slave 14 to the master 15.

When the notification is received, the multiplier corresponding to the notification is read out, the multiplier is multiplied by the basic illuminance of the corresponding set A, and the multiplication result is stored in the storage unit 1 corresponding to the corresponding set A.
54 temporarily holds. Thereafter, a request for returning a measured value is transmitted from the parent device 15 to the measuring slave 11 of the corresponding set A, the illuminance is measured in response to the request, and the measured value is returned.

When the returned measurement value is captured,
The multiplication result of the corresponding set A (basic illuminance multiplied by the multiplication factor) and the corresponding lighting fixture 13 from the light control subunit 12 of the corresponding set A
The output value of the dimming signal sent to the dimming control unit is taken in, and a dimming control value is generated from each of the taken values and transmitted to the dimming subunit 12 of the corresponding set A. When the transmitted dimming control value is received, the dimming of the corresponding lighting fixture 13 by the dimming slave 12 of the corresponding set A is executed according to the dimming control value.

A series of processes for the feedback control at the predetermined time is repeated, and the lighting fixture 13 attached to the dimming control device 12 of the corresponding set A provides a constant level at which the basic illuminance is multiplied by the multiplier. Lighting is performed.
As described above, according to the present embodiment, the setting for causing the dimming control device 10 to correspond to a predetermined time is very simple because only the numerical value of the multiplication factor is input.

Further, even if the use or the condition is different depending on the place, the illuminance is reduced at the same rate.
In addition to eliminating the effect of compromising the effects of the performance, the system is controlled as a whole, so it is possible to reduce the power consumption of all lighting in the building by the set ratio, increasing the power saving rate, and In some cases, it is possible for a resident to save power according to a predetermined time without feeling uncomfortable.

Furthermore, if only the relationship between the output value of the lighting equipment and the power consumption is known, it is possible to know how much the output value is set and how much power can be saved. It will be easier. Note that the dimming control device is not limited to the configuration of the above-described embodiment, and may have a configuration illustrated in FIG. 4 below. That is, the plurality of dimming control units 2
5 may be connected to each other so that a predetermined signal can be taken in from the outside. However, the predetermined signal is
Here, the demand warning signal described in the first embodiment is used.

Each of the adjustment control units 25 includes a storage unit 152, an operation unit 153, a storage unit 154, a clock unit 155, and a central processing unit 156, as in the above-described embodiment. An output unit 251 is connected as light control means for performing light control using the lighting equipment, and an input unit 2 for capturing two types of demand alarm signals of levels 1 and 2.
52 and a sensor 2 for illuminance detection in place of the light control subunit 12
53. In this case, the dimming control value obtained by the central processing unit 156 is passed to the output unit 251, and the output unit 2
51 generates a dimming signal according to the dimming control value and sends it to a lighting fixture (not shown).

Thus, each of the plurality of dimming control units 25 connected to each other changes the basic illuminance according to a predetermined signal from the outside, so that even a large-scale system requires a lot of time and labor. This eliminates the need for setting, and does not cause discomfort even at a predetermined time when a demand alarm signal or the like is input, and a sufficient effect can be obtained.

[0030]

As is evident from the above, according to the first to third aspects of the present invention, a large-scale system does not require a setting that requires labor and a considerable amount of work, and a demand alarm signal or the like is input. Even at a predetermined time, it is possible to obtain a sufficient effect without giving discomfort.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a parent device.

FIG. 3 is a diagram illustrating a state of feedback control by a parent device.

FIG. 4 is a schematic configuration diagram showing a dimming control unit according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 dimming control device 11 measuring subunit 12 dimming subunit 13 lighting fixture 14 signal input subunit 15 parent device 25 dimming control unit 151 communication unit 152 storage unit 153 operation unit 154 storage unit 155 timer unit 156 center Processing unit 251 Output unit 252 Input unit 253 Sensor

Claims (3)

[Claims] 1. A plurality of dimming means, a measuring means for measuring illuminance by dimming each of the plurality of dimming means, and a basic holding basic illuminance assigned to each of the plurality of dimming means Illuminance holding means, changing means for changing each of the plurality of basic illuminances at a constant power according to a predetermined signal from the outside, and sequentially assigned to the dimming means for each dimming means. When the basic illuminance or the basic illuminance is changed by the changing unit, a dimming control value is obtained according to the changed basic illuminance and the illuminance measured by the measuring unit and transmitted to the dimming unit. And a dimming control unit. 2. The dimming device according to claim 2, wherein the basic illuminance holding unit, the changing unit, and the dimming control unit are provided in a master unit, and each of the plurality of dimming units is provided in a dimming slave unit. Each of the plurality of measuring means is provided in a measuring slave, and the master unit is communicably connected to each of the plurality of dimming slaves and the plurality of measuring slaves. The dimming control device according to claim 1, wherein: 3. The dimming unit, the measuring unit, the basic illuminance holding unit, the changing unit, and the dimming control unit,
2. The dimming control device according to claim 1, wherein the dimming control units are provided in a dimming control unit, and the dimming control units are connected to each other so that the predetermined signal can be taken in from the outside. 3.