JP4441902B2 - Lighting control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting control system which surely controls a lighting mode according to purposes such as light reduction control, thinned-out lighting of lighting fittings, and lighting of emergency aisles which are conducted at power failures and other cases. <P>SOLUTION: The lighting control system comprises a detecting means 5 to detect the brightness of an illuminated area by a lighting fitting, an upper control unit 2 to transmit a brightness target value, and a lighting control unit 3 to control the light output of the lighting fitting 4 by comparing the brightness detected by the detecting means 5 with the target value transmitted by the upper control unit 2. Further, the system comprises a fixed control means to control with the target value of a predetermined lighting mode during a period when the upper control unit 2 does not operate normally. <P>COPYRIGHT: (C)2005,JPO&amp;NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting control system that controls lighting equipment for business use or home use such as a building facility, and particularly relates to a lighting control system that can stably perform lighting when an unexpected situation such as a power failure occurs.
[0002]
[Prior art]
This type of conventional illumination control system is equipped with a sensor that detects the brightness of the room and detects ambient brightness, and the detected brightness is compared with the stored brightness target value, and dimming is possible. The lighting equipment is controlled to control the room to the target brightness.
[0003]
As shown in the flowchart of the conventional lighting control system in FIG. 4, the configuration is composed of a host control device 10 and a lighting control device 11, and the lighting control device 11 includes communication means with the host control device 10. The operation state of the illumination control can be changed by receiving the brightness target value from the device 10 or receiving a selection signal of a plurality of stored target values.
[0004]
As shown in the flowchart of FIG. 4, the brightness target value is stored in the storage unit 11 a of the illumination control device 11 as, for example, target value 1 and target value 2, and the selection transmitted from the host control device 10. For example, the target value 1 is selected by the signal.
[0005]
Next, the brightness of the room detected by the sensor installed in the room in STEP 1 is read and compared with the target value 1 selected in STEP 2, and if it is larger than the target value in STEP 3, the dimming degree of the luminaire is set to DOWN. However, if it is small, the dimming degree is increased, and a dimming signal is sent from the lighting control device 11 to the lighting fixture so that the illuminance in the room matches the target value 1, thereby controlling the brightness of the indoor lighting. .
[0006]
In such a lighting control system, since the lighting control device 11 controls the lighting fixtures according to the target value, and the overall control such as the change of the target value can be performed by the host control device 10, the failure of the host control device 10 Even if there is, the control of the lighting fixture can be performed independently by the lighting control device 11.
[0007]
[Problems to be solved by the invention]
However, in such a lighting control system, usually, the host control device 10 often manages, for example, the entire building or each floor, and the scale of the device is a device similar to a personal computer. On the other hand, the lighting control device 11 often controls a plurality of lighting fixtures in a room on a specific floor, for example, in a facility, and is a small-scale device equipped with a built-in microcomputer or the like.
[0008]
As described above, since the scales of the devices are different, the time from when the power is supplied to the device until the startup state is reached differs greatly between the host control device 10 and the illumination control device 11.
[0009]
For example, while the host control device 10 takes about 10 minutes, the lighting control device 11 side can reach an activated state within about 60 seconds.
[0010]
For this reason, after the host control device 10 reaches the activated state, transmission of a target value or the like to the lighting control device 11 is started in order to perform scheduled control, but the lighting control device is started before the transmission is started. 11 reaches an activated state, and the lighting control device 11 does not receive an instruction of the original intended lighting control from the host control device 10, and the target value stored in advance in the interior, the desired target value, Causes a problem of starting the control of the luminaire with a different target value.
[0011]
This problem is caused by, for example, lighting control of a building equipped with a private power generator as a standby power source in the event of a power failure, and when the power source is switched from a commercial power source to a private power generator, the power consumption is reduced and the light intensity is reduced. Troubles occur when trying to illuminate emergency passages, such as control and thinning lighting fixtures.
[0012]
That is, as shown in the time chart of the conventional lighting control system in FIG. 5, when a power failure occurs at point A, the private power generator is activated in a few minutes (point B).
[0013]
At this time, a signal notifying that the private power generator is in operation is input to the host controller 10 by contact input or the like.
[0014]
When the host controller 10 reaches the starting state at point D after about 10 minutes by the private power generator, the lighting controller 11 is already in the starting state at point C, and the lighting controller 11 starts from the host controller 10. The lighting control device at point E without receiving the instruction signal of the target value # 2 for controlling the dimming control, which is the lighting mode that should be performed at the time of power failure, thinning lighting of lighting fixtures, emergency passage lighting, etc. 11, for example, a signal that is controlled in advance by the target value # 1 of all light control, for example, is sent to the luminaire, and the luminaire is lit at the target value # 1 of the undesired all light control. End up.
[0015]
For this reason, a room that is temporarily dark due to a power outage suddenly becomes dull due to the lighting condition of all-light control, or it does not cause dimming control with reduced power or thinning-out lighting, so it places an excessive burden on the private power generation device or capacity There arises a problem that the lighting of the emergency passage is not turned on.
[0016]
Therefore, for example, in the lighting control of a building equipped with a private power generation device as a standby power source in case of a power failure, when the power source is switched to the private power generation device, dimming control or lighting fixtures that reduce the illuminance of the lamp that reduces the power consumption There is an urgent need for a lighting control system that can reliably perform lighting according to the purpose, such as thinning-out lighting and lighting of emergency passages.
[0017]
As a conventional technique for improving this type of problem at the time of a power failure, there is a technique described in Japanese Patent Laid-Open No. 9-289692. However, this content is limited to a controlled load that is forcibly highly important when a power failure occurs. It is a system that continues operation, forcibly stops other controlled loads, and returns to the original state when the forced control is released. This system is a lighting control system consisting of a host controller and a lighting controller. It is not intended to solve the conventional problems in the present invention.
[0018]
In view of the problems of the conventional lighting control system described above, the present inventionAfter the lighting control device is turned onIn the period when the host controller does not operate normally, it is equipped with fixed control means configured to control the predetermined illumination mode as the target value, for example, dimming control, thinning lighting of lighting fixtures, emergency passage lighting, etc. An object of the present invention is to provide an illumination control system that can reliably control to a predetermined predetermined illumination mode.
[0019]
[Means for Solving the Problems]
The invention of the lighting control system according to claim 1 is a detection means for detecting the brightness of the illuminated area of the luminaire; a host control device for transmitting a target value of brightness; and the brightness detected by the detection means. Transmitted from the host controllerBrightnessControl light output of lighting fixtures by comparing target valuesSmaller than the host controllerA lighting control device;After the lighting control device is turned onFixed control means configured to control a predetermined illumination mode as a target value during a period in which the host controller does not operate normally.
[0020]
The “detection means” is composed of, for example, a photosensor made of a photoconductive cell such as a photoelectric tube or Cds, and is directly irradiated from a fluorescent lamp of a lighting fixture or reflected from a floor or a wall surface, and the brightness of an irradiated area. The detection output transmission means may be a wireless system using infrared rays or a wired system using a transmission signal line.
[0021]
The “higher-level control device” is a control device configured by a computer, for example, installed in a central control room of a building, and manages the entire building or each floor in an integrated manner, and operation targets of a plurality of lighting fixtures installed in the room Various types of lighting fixtures such as illuminance and target dimmingBrightnessIt is preferable that the operation set value is stored and set, and for example, the instruction and change of the target value of brightness are controlled in an integrated manner. The computer of the control device may be a personal computer or the like.
[0022]
“Transmit the brightness target value” means that the host controllerBrightnessThis means that the operation setting value is transmitted to the lighting control device, and the transmission means may be a wired type using a transmission signal line, or a wireless type using infrared rays.
[0023]
The “lighting control device” is composed of, for example, a control device of a scale equipped with a built-in microcomputer, for example, installed on the back of a room on a specific floor in a building, and controls a plurality of lighting fixtures installed in the room. It is preferable that the control can be performed independently even if there is a failure of the host control device.
[0024]
In addition, the “lighting control device” includes wired or wireless transmission means between the host control device and various types of devices set in the host control device.BrightnessIt is preferable to receive and store a target value, which is an operation set value, or to receive a selection for selecting a plurality of stored target values, a switching signal or the like from the host control device to change the operation state.
The “lighting control device having a smaller scale than the host control device” is often managed by the host control device as a whole for the entire building or for each floor, and the scale of the device is, for example, about a personal computer. On the other hand, the lighting control device often controls a plurality of lighting fixtures in a room on a specific floor in a building. For example, the lighting control device is equipped with a built-in microcomputer or the like. This means that the device is smaller in scale.
[0025]
"Brightness detected by the detection means and transmitted from the host controllerBrightness“Comparing the target value to control the light output of the luminaire” means that the brightness target value received from the host control means is compared with the current room brightness detected by the detection means, and the brightness is This means that a dimming signal is sent to the lighting fixture so as to match the target value, and the light output of the lighting fixture is controlled.
[0026]
"After the lighting control device is turned on`` In the period when the host control device does not operate normally '' means, for example, the situation where the time from when the lighting control device is turned on until it can be confirmed that the host control device has been started has elapsed, or the host control Predetermined from the deviceBrightnessTarget value orBrightnessIt means a situation where the host controller is not operating normally, such as a situation where a target value selection signal is not transmitted. In other words, it is a period until the state in which the host control device is activated is confirmed or believed, and is not limited to these exemplified situations.
[0027]
The “predetermined illumination mode” is the brightness detected by the detection means and transmitted from the host controller.BrightnessIt is not an illumination mode in which the light output of the luminaire is controlled by comparing the target values, but means a target value that is independent of the host controller that is fixed and set to the desired constant illumination mode. Used whenThisThis refers to lighting modes such as dimming control with reduced dimming, thinning lighting of lighting fixtures, and emergency passage lighting, etc., performed for power saving of standby power supplies. It is not limited to these methods.
[0028]
The predetermined lighting mode is preferably stored and set in the lighting control device. However, the predetermined lighting mode is set in the host control device, and is appropriately stored and set in the lighting control device according to an instruction signal from the host control device. Also good.
[0029]
“Fixed control means configured to control a predetermined lighting mode as a target value” means that, for example, when power is switched from a commercial power supply to a private power generator that is a standby power supply during a power failure, the power used is reduced. This means that there is a fixed control means for controlling illumination using a predetermined illumination mode such as dimming control, thinning lighting of lighting fixtures, emergency passage illumination, etc. as a target value. The content of the illumination mode is not limited to these.
[0030]
According to the present invention,After the lighting control device is turned onIn the period when the host controller does not operate normally, it has a fixed control means configured to control the predetermined illumination mode as the target value.For example, when the power source is switched to the private power generator during a power failure In addition, it is possible to reliably operate a predetermined predetermined illumination mode such as dimming control with reduced power consumption, thinning lighting of lighting fixtures, emergency passage lighting, and the like.
[0031]
The illumination control system according to the second aspect of the present invention includes: a detection unit that detects the brightness of an illuminated area of a lighting fixture; a host controller that transmits a target value of brightness; and the brightness detected by the detection unit and the host Transmitted from the control unitBrightnessA lighting control device that is smaller in scale than the host control device that controls the light output of the lighting fixture by comparing the target values;After the lighting control device is turned onFrom the host controllerBrightness or lighting modeUntil a target value is received, a fixed control means configured to control a predetermined illumination mode as the target value.
[0033]
From the host controllerBrightness or lighting mode“Up to receiving the target value” means that the host controller is set as the host controller.Brightness or lighting modeIt means that the target value is transmitted, the lighting control device receives the target value, and confirms or believes that the host control device has started.
[0034]
When multiple target values are set in the host controller, any target value may be used, or even when a specific target value is transmitted and received, or multiple target values depending on the situation. Any of these may be selected as appropriate.
[0035]
According to the present invention,After the lighting control device is turned onFrom the host controllerBrightness or lighting modeUntil it receives the target value, it has fixed control means configured to control the predetermined lighting mode as the target value.For example, when the power source is switched to the private power generator during a power failure, It is possible to reliably operate a predetermined predetermined illumination mode such as reduced dimming control, thinning lighting of lighting fixtures, and emergency passage lighting.
[0036]
According to a third aspect of the present invention, there is provided a lighting control system comprising: a detecting means for detecting the brightness of an illuminated area of a lighting fixture; a host control device for transmitting a target brightness value; and a brightness detected by the detecting means. Transmitted from the host controllerBrightnessA lighting control device that is smaller in scale than the host control device that controls the light output of the lighting fixture by comparing the target values; and for a predetermined time after the lighting control device is turned on, the predetermined lighting mode is set as the target value And a fixed control means configured to control.
[0037]
“Predetermined time after turning on the power of the lighting control device” means that the time until it can be confirmed that the host control device has started has elapsed, and that the host control device has been started or confirmed. Means until. In other words, a time slightly longer than the time required for starting the host control device is preferable, but may be appropriately determined in accordance with the situation and purpose in system design.
[0038]
According to the present invention, the predetermined time after the lighting control device is turned on has the fixed control means configured to control the predetermined lighting mode as the target value. When the power source is switched to the private power generator, it is possible to reliably operate a predetermined predetermined illumination mode such as dimming control with reduced power consumption, thinning lighting of lighting fixtures, emergency passage lighting, and the like.
[0039]
The invention of the illumination control system according to claim 4 is the illumination control system according to claim 3,The lighting control device stores the predetermined time.WithThis predetermined timeIt can be changed from the host controller.
[0040]
According to the present invention,The lighting control deviceA predetermined time after the lighting control device is turned onRememberWithThis predetermined time is from the host controller.Because it can be adjusted and changed according to the situation of the facility, purpose of use, scale of the equipment, etc., dimming control with reduced power consumption, thinned lighting of lighting fixtures, emergency passage lighting according to the purpose It is possible to operate a predetermined illumination mode for the purpose.
[0041]
The illumination control system according to claim 5 is the illumination control system according to any one of claims 1 to 4, wherein the predetermined illumination mode of the fixed control means can be changed from a host controller. And
[0042]
According to the present invention, the predetermined lighting mode of the fixed control means can be changed according to the situation of the facility, the purpose of use, etc., so dimming control with reduced power consumption, thinning lighting of lighting fixtures, and even emergency It is possible to switch to a predetermined illumination mode according to various purposes such as illumination of the passage.
[0043]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of a lighting control system according to the present invention will be described below.
[0044]
1 to 3 show a first embodiment of a lighting control system of the present invention, FIG. 1 is a schematic configuration diagram of the lighting control system, FIG. 2 is a flowchart of the lighting control system, and FIG. 3 is a time chart of the lighting control system. It is.
[0045]
In FIG. 1, a lighting control system 1 is composed of a host control device 2, a lighting control device 3, a plurality of lighting fixtures 4, and an optical sensor 5 constituting a detection means.
[0046]
The luminaire 4 is directly attached to the ceiling 6 of the room and includes a fluorescent lamp and a high-frequency lighting device. The luminaire 4 outputs high-frequency power in accordance with a dimming signal sent from the lighting control device 3, and the fluorescent lamp is appropriately connected by this output. It is configured to be dimmed.
[0047]
The light sensor 5 is disposed on the floor surface of the room, the light receiving surface 5a detects the brightness of the irradiated area irradiated by the lighting fixture 4, and the detection output corresponding to the brightness is illuminated by infrared rays. 3 is sent out.
[0048]
The lighting control device 3 is equipped with a built-in microcomputer having a storage unit, a discrimination unit, a dimming signal generation unit, and the like, and is connected to each lighting fixture 4 by a dimming signal line 4a and installed on the back side of the ceiling 6. The brightness target value transmitted from the host controller 2 is compared with the current room brightness detection value sent from the light sensor 5 so that the brightness matches the target value. A dimming signal is transmitted to the high-frequency lighting device of each lighting fixture 4, and the brightness of the fluorescent lamp is controlled to control the room brightness to the target brightness.
[0049]
Further, the lighting control device 3 is fixedly set to a target constant lighting mode, and is a fixed control means that sets a predetermined lighting mode independent of the host control device as a target value. Dimming control lighting with reduced dimming level, thinning lighting that thins out lighting fixtures at predetermined intervals instead of full lighting, emergency passage Three types of predetermined lighting modes of illumination are stored and set, and the target value is not transmitted from the host controller 2 during a period when the host controller is not operating normally, that is, the lighting controller 3 receives the target value. Unless it is controlled by this fixed control means, after the host controller 2 has normally reached the starting state, it receives an instruction signal from the host controller 2, and in accordance with the instruction, each lighting fixture is I will control It has become.
[0050]
The host control device 2 is configured as a control device having an information setting unit, a storage unit, a signal generation unit, and the like on the same scale as a personal computer. A plurality of brightness target values are set in the control room for controlling the lighting fixture 4 with various brightnesses, and the target values are transmitted to the lighting control device 3 by the operation of the operator, or A selection signal for switching a plurality of target values stored in the illumination control device 3 to a predetermined target value, or for selecting one of the fixed control means including the above-described three types of illumination modes stored in the illumination control device 3 Is configured to send.
[0051]
In the case of the present embodiment, the fixed control means is set in advance to an illumination mode for dimming control with reduced dimming degree.
[0052]
The host control device 2, the lighting control device 3, the lighting fixture 4, and the optical sensor 5 are connected to independent power sources and can be controlled.
[0053]
Next, the operation of the above embodiment will be described.
[0054]
FIG. 2 is a flowchart of the illumination control system, and FIG. 3 is a time chart of the illumination control system.
[0055]
When the power is turned on constantly, the host control device 2 and the illumination control device 3 start up. Since the scale of the lighting control device 3 is smaller than that of the host control device 2, the lighting control device 3 reaches the activated state before the host control device 2, and first, in STEP1, the target value # 2 of the predetermined lighting mode as the fixed control means, In the case of the embodiment, a preset dimming control is selected.
[0056]
The program of the lighting control device 3 continues to confirm whether or not the brightness target value has been received from the host control device 2 while simultaneously outputting the dimming signal for dimming control to each lighting fixture 4.
[0057]
Next, about 10 minutes after the power is turned on, the host control device 2 normally reaches the start-up state, sends a signal of the target value # 1 of the all-light control predetermined in STEP 2, and the illumination control device 3 Upon receiving the signal, the dimming control of the target value # 2 is switched to the all-light control of the target value # 1, and the operation target is changed to the all-light control of the target value # 1, and each lighting fixture 4 is turned on completely. .
[0058]
Furthermore, the illumination control device 3 continues in parallel to confirm whether or not the operation target value switching signal is transmitted from the host control device 2.
[0059]
For example, when the weather suddenly becomes bad weather and the outside becomes dark and it is necessary to further increase the illuminance of the room, the operator transmits a switching signal to the target value # 3 for increasing the illuminance from the host controller 2.
[0060]
In STEP 3, the lighting control device 3 receives the switching signal, switches the all-light control of the target value # 1 to the target value # 3 for increasing the illuminance, changes the operation target to the target value # 3, and sets each lighting fixture 4. Turns on when the illumination increases.
[0061]
If there is no signal such as a target value from the host controller 2 even after a predetermined time, for example, about 15 minutes, due to a failure of the host controller 2, etc., all light of the target value # 1 is detected in STEP4. Transition to control.
[0062]
Next, the operation when a power failure occurs will be described.
[0063]
When a power failure occurs at point A in FIG. 3, the lighting control 4, the host control device 2, and the lighting control device 3 cannot receive power supply, and all of them stop.
[0064]
After that, the private power generation device, which is a standby power source installed in the facility, starts at point B, and power is supplied to the lighting fixture 4, the host control device 2, and the lighting control device 3, but the scale of the device as described above. From the difference, the lighting control device 3 first reaches the starting state at the point C, and the host control device 2 becomes the slowest and reaches the starting state at the point D.
[0065]
At this time, a signal notifying that the private power generation apparatus is operating is input to the host control apparatus 2 by contact input or the like.
[0066]
Since the lighting control device 3 is set to operate at the target value # 2 unless there is a signal of the target value from the host control device 2, the dimming control is selected, and the lighting fixture 4 generates the illuminance from the point E. Perform the dimmed lighting that was dropped.
[0067]
After that, the upper control device 2 normally reaches the starting state at the point D, and the upper control device 2 is set in advance so as to select the dimming control of the target value # 2 when the private power generation device is in operation. The host control device 2 transmits the target value # 2 to the lighting control device 3.
[0068]
The lighting control device 3 receives the signal and sends a signal of target value # 2 that is dimming control to the lighting fixture 4, and the lighting fixture 4 is dimmed by continuously reducing the illuminance from point E at point F. Continue lighting.
[0069]
For this reason, when returning from the dark state due to a power failure, all-light control of the target value # 1 is suddenly made, and there is no glare, and an excessive burden is imposed on the private power generation device. When the capacity is exceeded or during private power generation, power is not consumed unnecessarily.
[0070]
In the present embodiment, the fixed control means starting from the point E and the fixed control means starting from the point F are set to the same mode as the dimming control of the target value # 2, but from the point F. The illumination mode to be started does not have to be the same as the mode started from the point E. For example, from the point F, a target value for thinning lighting may be set.
[0071]
It should be noted that when the power source is switched to the private power generator, it is set not to switch to the all-optical control of the target value # 1 if no signal is received from the host control device 2 even after a predetermined time has passed. The all-light control lighting state does not occur.
[0072]
When the power failure is restored and the power source is switched from the private power generator to the commercial power source, the operation returns to the normal operation described above and predetermined control is performed.
[0073]
Next, a method for changing the predetermined illumination mode of the fixed control means will be described.
[0074]
The lighting control device 3 stores and sets three types of lighting modes, dimming control with reduced dimming, thinning lighting, and emergency passage lighting, as predetermined lighting modes of the fixed control means. When the predetermined lighting mode of the fixed control means is switched according to the purpose of use, etc., the operator operates the host control device 2 to control the switching signal of the fixed control means, for example, the signal for switching from dimming control to thinning lighting. Transmit to device 3.
[0075]
The lighting control device 3 receives the switching signal from the host control device 2, selects the thinning-out lighting mode from the stored three types of lighting modes, and thins out unless the target value signal is transmitted from the host control device 2. Turn on lighting.
[0076]
Next, a second embodiment will be described.
[0077]
In the first embodiment, the lighting control device 3 is in a lighting mode for dimming control unless the host control device is operating normally, that is, unless a signal of a target brightness value is received from the host control device 2. In this embodiment, the lighting control is performed by a fixed control means. However, in this embodiment, the lighting control device is powered on for a predetermined time, in other words, the lighting control device 3 is powered on. The lighting control device 3 stores a time until it can be confirmed that the control device 2 has normally reached the activation state, a time slightly longer than the time required for the host control device 2 to reach the activation state, for example, 15 minutes. During this time, control is performed by fixed control means that is an illumination mode of dimming control.
[0078]
The time from when the power is turned on to the lighting control device 3 until it can be confirmed that the host control device 2 is activated can be changed to suit the situation of the facility, the purpose of use, the scale of the device, and the like.
[0079]
In order to change the time, a time change signal may be transmitted from the host control device 2 to the lighting control device 3, and the lighting control device 3 receives the time change signal from the host control device 2 and changes the time. Start control.
[0080]
Other configurations and operations are the same as those in the first embodiment.
[0081]
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the present invention.
[0082]
【The invention's effect】
According to the invention of claim 1,In a lighting control system having a lighting control device of a smaller scale than the host control device, after the lighting control device is turned onIn the period when the host controller does not operate normally, because it has a fixed control means configured to control the predetermined illumination mode as a target value,From the time of power-on of the lighting control deviceThe target predetermined illumination mode can be reliably operated.
[0083]
According to the invention of claim 2,In a lighting control system having a lighting control device of a smaller scale than the host control device, after the lighting control device is turned onFrom the host controllerBrightness or lighting modeUntil it receives the target value, because it has a fixed control means configured to control the predetermined illumination mode as the target value,From the time of power-on of the lighting control deviceThe target predetermined illumination mode can be reliably operated.
[0084]
According to the invention of claim 3,In a lighting control system having a lighting control device of a smaller scale than the host control device,Because it has a fixed control means configured to control a predetermined illumination mode as a target value for a predetermined time after the lighting control device is turned on,From the time of power-on of the lighting control deviceThe target predetermined illumination mode can be reliably operated.
[0085]
According to the invention of claim 4,In the invention of claim 3, the lighting control device stores a predetermined time, and the predetermined time can be changed from the host control device.Since it can be adjusted and changed according to the situation of the facility, the purpose of use, the scale of the apparatus, etc., the intended predetermined illumination mode can be operated more reliably.
[0086]
According to the invention of claim 5,In the invention according to any one of claims 1 to 4,The predetermined illumination mode of the fixed control means isSince it can be changed from the host controller,Since it can be changed according to the situation of the facility, the purpose of use, etc., it can be switched to a predetermined lighting mode according to various purposes, and the predetermined lighting mode can be operated more reliably.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a lighting control system according to a first embodiment of the present invention.
FIG. 2 is a flowchart of the illumination control system according to the first embodiment of the present invention.
FIG. 3 is a time chart of the illumination control system according to the first embodiment of the present invention.
FIG. 4 is a flowchart of a conventional lighting control system.
FIG. 5 is a time chart of a conventional lighting control system.
[Explanation of symbols]
1 Lighting control system
2 Host controller
3 Lighting control device
4 lighting equipment
5 Detector

Claims (5)

Detection means for detecting the brightness of the illuminated area of the luminaire;
A host controller that transmits the target brightness value;
A lighting control device having a smaller scale than the host control device that controls the light output of the lighting fixture by comparing the brightness detected by the detection means with the target value of the brightness transmitted from the host control device;
In the period in which the power supply is not operating normally the host controller since the introduction of the lighting control device, a fixed control means configured to control the predetermined illumination modes as a target value;
An illumination control system comprising: Detection means for detecting the brightness of the illuminated area of the luminaire;
A host controller that transmits the target brightness value;
A lighting control device having a smaller scale than the host control device that controls the light output of the lighting fixture by comparing the brightness detected by the detection means with the target value of the brightness transmitted from the host control device;
Fixed control means configured to control a predetermined illumination mode as a target value from when the power supply of the illumination control device is turned on until the brightness or illumination mode target value is received from the host control device;
An illumination control system comprising: Detection means for detecting the brightness of the illuminated area of the luminaire;
A host controller that transmits the target brightness value;
A lighting control device having a smaller scale than the host control device that controls the light output of the lighting fixture by comparing the brightness detected by the detection means with the target value of the brightness transmitted from the host control device;
Fixed control means configured to control a predetermined illumination mode as a target value for a predetermined time after the illumination control device is turned on;
An illumination control system comprising: 4. The lighting control system according to claim 3 , wherein the lighting control device stores the predetermined time, and the predetermined time can be changed from a host control device. The illumination control system according to any one of claims 1 to 4, wherein the predetermined illumination mode of the fixed control means can be changed from a host controller.

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