JPH11204273A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a comfortable light by changing the inclination of fade-in when an illumination load is turned on. SOLUTION: This lighting system is provided with an illumination load 1, an illumination load controller 2 changing the power quantity fed to the illumination load 1 from a commercial AC power supply AC, a controller 3 outputting a load control signal for adjusting the power quantity fed to the illumination load 1 for the turning-on/off and dimming of the illumination load 1, and a human body detection section 4 detecting the existence and movement of a human in a detection region. The controller 3 initially accelerates the speed (inclination) of fade-in for returning the illumination load 1 from the prescribed lighting state to the initial lighting state than the fade-in speed from the turned- off state (0%) to the fully lighted state (100%), thereby the illumination load 1 can be fully lighted in a shorter time than the normal time, and a more comfortable light can be provided to a user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device, and more particularly to a lighting device that detects a surrounding situation and controls a lighting load.

[0002]

2. Description of the Related Art In recent years, lighting devices having a lighting function that is easy on the eyes and providing a light that does not cause discomfort due to lighting have come to market. As such a lighting device, for example, there is a lighting device described in JP-A-5-114489 or JP-A-9-223585.

[0003] The illuminating device described in Japanese Patent Application Laid-Open No. 5-114489 has a human body detecting section for detecting the presence or absence or movement of a person in a detection area and an illuminance detecting section for detecting ambient illuminance. When the human body is detected by the human body detection unit when the ambient illuminance detected by the unit is lower than the preset illuminance, the illumination load is turned on at a predetermined inclination as shown in FIG. In addition to fading in, the high-luminance lighting state is maintained for a preset time.

The lighting device described in Japanese Patent Application Laid-Open No. 9-223585 has a human body detecting section for detecting the presence or absence or movement of a person in a detection area, and a power control for controlling power supplied to a lighting load. Unit, a timer that counts the lighting hold time that holds the lighting state of the lighting load after human body detection, and a forced lighting mode that forcibly turns on the lighting load regardless of the presence or absence of human body detection, when a human body is detected by the human body detection unit And at least a changeover switch for switching to and selecting a normal mode in which the lighting load is lit for the lighting holding time or a sleep mode. Here, when the mode is switched from the normal mode to the sleep mode, the lighting level of the lighting load is reduced from the rated level to a considerably low dimming level (the rated level is set to 1).
When the human body is detected by the human body detection unit, the light is slowly faded in from the light-off state to the dimming level (see FIG. 17).

By the way, in the lighting device provided with the above-mentioned human body detecting section, generally, control is performed such that a human body is detected to turn on the lighting load and automatically turn off after a predetermined time. For example, if the human body detection unit is of a pyroelectric type, the human body detection may not be performed due to little movement of the person, and the lighting load is turned off after a predetermined time despite the presence of the person in the detection area. In some cases. At this time, in order to turn on the illumination load again, it is necessary for the person present in the detection area to move so as to be detected by the human body detection unit in the dark. In order to avoid such a problem, the output may be gradually reduced (fade out) when the lighting load is turned off. Furthermore, there is a lighting device having a so-called light-off notification function in which the fade-out is stopped for a few seconds during the fade-out and the light is turned on at a constant output in order to notify the user that the lighting load will be turned off soon.

However, in the conventional lighting apparatus, when a human body is detected by the human body detection unit in a state where the lighting load is turned off (during fade-out), the lighting load is fixed at a constant inclination as in the conventional example described in the above publication. The control which fades in was performed. That is, the inclination of the fade-in when the lighting load is turned on in the same mode was constant (see FIGS. 16 and 17).

[0007]

However, in the case where the lighting load is automatically turned off as described above, it is at least that a person confirms the fade-out of the lighting load and the lighting state by the above-mentioned light-off notification function. This indicates that a person is still present in the detection area of the human body detection unit. Therefore, when the output of the illumination load is increased (fade-in) again in such a situation, the illumination is performed by fading in at a faster speed (tilt) than performing the fade-in at the same speed (tilt) as usual. It is desirable to light the load early to provide the user with the original brightness.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a comfortable light by changing the inclination of a fade-in when lighting a lighting load according to the situation. It is an object of the present invention to provide an illuminating device capable of performing the following.

[0009]

In order to achieve the above object, according to the present invention, there is provided a lighting means for detecting a lighting load and a surrounding condition, and an external power supply at least according to a detection result by the detecting means. Control means for varying the amount of power supplied to the load and for turning on, off, and dimming the lighting load, wherein the control means includes an external trigger signal when the lighting load is in a predetermined state. When the lighting load is turned on, the lighting load is faded in with a slope larger than a predetermined slope, and the lighting load is turned on. Light can be provided.

[0010] The predetermined state is a state in which the output level of the lighting load is equal to or higher than a predetermined value as in the invention of claim 2, or the lighting load is turned off as in the invention of claim 3. A state, or a state in which the control means is performing fade-out to gradually lower the output level of the lighting load as in the invention of claim 4, or a state in which the detection means is in a detection range as in the invention of claim 5. And outputs a human body detection signal to the control means by detecting the presence or absence or movement of the person inside the control means. The control means counts a predetermined lighting holding time from the time when the human body detection signal is input. The lighting load is turned on at a predetermined output level during the counting, and the lighting load holding time is being counted, or the output level of the lighting load is a plurality of predetermined levels as in the invention of claim 10. It is greater state than either.

According to a sixth aspect of the present invention, the detecting means detects the presence or absence or movement of a person within a detection range and outputs a human body detection signal to the control means. An illumination fixture including the trigger signal, or at least the illumination load, the control unit, and a reception unit for receiving a remote control signal as in the invention of claim 7;
9. The apparatus according to claim 8, comprising at least the detecting means and a transmitter for transmitting the remote control signal in accordance with a detection result by the detecting means, wherein the remote control signal is used as the trigger signal, or the detecting means as in the invention of claim 8. Outputs an illuminance level signal corresponding to the surrounding illuminance to the control means, and the illuminance level signal exceeding a predetermined level may be used as the trigger signal.

[0012] According to a ninth aspect of the present invention, the control means may change the inclination of the fade-in when the lighting load is turned on, depending on the time zone.

[0013]

(Embodiment 1) FIG. 1 is a block diagram showing Embodiment 1 of the present invention. The lighting device according to the present embodiment includes a lighting load 1 such as a bulb or a discharge lamp, a lighting load control unit 2 that varies the amount of power supplied from the commercial AC power supply AC to the lighting load 1, and a lighting load A control unit 3 that outputs a load control signal for adjusting the amount of supplied electric power to the lighting load control unit 2 to turn on, off, and dimming the lighting load 1.
And a human body detection unit 4 for detecting the presence or absence or movement of a person in the detection area, wherein a control unit is configured by the illumination load control unit 2 and the control unit 3, and a detection unit is configured by the human body detection unit 4. I have. Although not shown in the present embodiment, the control unit 3
An operation unit for giving instructions such as lighting, turning off, dimming, and the like may be provided.

The lighting load control unit 2 varies the amount of power supplied to the lighting load 1 by controlling the phase of the power supply voltage of the commercial AC power supply AC using a triac if the lighting load 1 is a light bulb, for example. If the lighting load 1 is a discharge lamp, the lighting load 1 is constituted by an inverter circuit, and the amount of power supplied to the lighting load 1 is varied by adjusting the oscillation frequency.

The control unit 3 includes a microcomputer as a main component, and generates a load control signal for turning on / off the light load 1 and dimming the lighting load 1 in accordance with a signal input from the operation unit 4. The load control signal is, for example, a signal that determines the ON period of the triac or a signal that determines the oscillation frequency of the inverter circuit. The human body detection unit 4 includes a pyroelectric infrared sensor 4a that detects a change in infrared light according to the movement of the human body, an amplification unit 4b that amplifies the amount of change in infrared light detected by the infrared sensor 4a, and an amplification unit 4b.
And a comparator 4c that outputs a human body detection signal when the amount of change exceeds the reference level and compares the amount of change with the reference level. It outputs the human body detection signal shown to the control unit 3.

The control unit 3 receives a human body detection signal from the human body detection unit 4 and a signal from an operation unit (not shown), determines those signals, and determines an illumination according to the set operation mode. A load control signal for turning on, off, and dimming the load 1 is generated, and a load control signal is output to the illumination load control unit 2 to perform control according to the operation mode. Next, the operation of this embodiment will be described in detail with reference to FIGS. The normal operation of the present embodiment is basically the same as the operation described in the conventional example. When a human body detection signal is input from the human body detection unit 4, the control unit 3 changes the output of the lighting load 1 from 0% to 100%.
% (Rated output or maximum output), a load control signal that gradually increases (fade in) is generated, and the load control signal is output to the illumination load control unit 2 to turn on the illumination load 1. The fade-in speed at this time is, for example, a speed at which the output of the illumination load 1 is continuously increased from 0% to 100% in 0.8 seconds. In the following description, the speed (gradient) of the fade-in defined as described above is expressed as V (0.8) _{0 -100} . Similarly, the speed (gradient) at which the output of the lighting load 1 is continuously reduced (fade out) from 100% to 0% in 0.8 seconds is represented by V
(0.8) It is written as _100-0 .

Further, a timer 3a provided in the control unit 3
Starts counting the time (hereinafter referred to as “lighting holding time”) τ during which lighting of the illumination load 1 is continued from the time when the human body detection signal is input from the human body detecting unit 4. The control unit 3 turns on the illumination load 1 at a predetermined level (for example, 100% full lighting) while the timer 3a is counting the lighting holding time τ, and the timer 3a counts the lighting holding time τ. When completed, the lighting load 1 is turned off by gradually lowering (fading out) the output. The fade-out speed (tilt) at this time is determined by setting the output of the lighting load 1 to 1
It is a speed that continuously decreases from 00% to 0% in 0.8 seconds, and has the same absolute value as the fade-in speed. However, in order to notify the user that the lighting load 1 will be turned off soon, the control unit 3 stops the fade-out for a few seconds during the fade-out and outputs a fixed output (for example, 50%, but is not limited to this). ) (Lights out function). The fade-out may be started so that the lighting load 1 is turned off when the timer 3a completes the counting of the lighting holding time τ.

Here, the above-mentioned light-off notification function stops the fade-out on the way and stops the lighting load 1 at a constant output.
When a human body detection signal is input from the human body detection unit 4 while the light is being turned on, the control unit 3 resets the counting operation of the lighting holding time τ of the timer 3a and starts counting the lighting holding time τ again from the beginning. Start and lighting load 1
Is performed so as to return to the initial lighting state (lighting state of 100% output).

At this time, as shown in FIG.
The fade-in speed (slope) for returning the lighting load 1 to the initial lighting state is faster than the speed at which the lighting load 1 fades in from the off state (0%) to the full lighting state (100%). Speed to increase continuously from 0% to 100% in 0.2 seconds (= V (0.2) _0-100 )
Fade in. On the other hand, in the conventional example, a fade-to return to the initial lighting state lighting load 1, as shown in FIG. 4, equal to the speed of fade-in from the first OFF state until full lighting speed (= V (0.8) _{0 -100} ), but when the human body detection signal is input when the output of the lighting load 1 is a constant value (50%) as in the present embodiment, the fade-in is performed faster than the normal fade-in. Thereby, when the user notices the state of the light-off notification and tries to fully turn on the lighting load 1 again, the lighting load 1 can be fully turned on earlier and in a shorter time than in the normal case. And provide a more comfortable light. In addition, since the user is under the illumination by the illumination load 1 until the fade-out, even if the fade-in is performed faster than usual from the middle of the fade-out as described above, the user may not feel discomfort in brightness. Absent.

(Embodiment 2) FIG. 5 shows Embodiment 2 of the present invention.
FIG. In the present embodiment, the lighting fixture 1
0 and the transmitter 20 constitute an illumination device. The lighting apparatus 10 includes the lighting load 1, the lighting load control unit 2, the control unit 3, and the receiving unit 11 according to the first embodiment. The transmitter 20 includes the human body detecting unit 4, an internal power supply unit 21 including a storage battery, and the like. The transmitter 22 includes a unit 22 and a transmission unit 23. The transmitter control unit 22 also includes a timer 22a. The portions having the same functions as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

When the human body detection signal is input from the human body detection section 4 to the transmitter control section 22, the transmitter 20 controls the transmission section 23 to transmit a wireless signal having a code corresponding to the load control signal. I do. Here, the transmission unit 23 includes a light emitting diode (LED) 23a that emits infrared light, and transmits the wireless signal using infrared light emitted from the light emitting diode 23a.

On the other hand, the wireless signal from the transmitter 20 is received by the receiving unit 11 of the lighting fixture 10 and sent to the control unit 3. Then, a load control signal is generated based on the wireless signal received by the control unit 3, and the generated load control signal is output to the lighting load control unit 2 to control lighting, turning off, dimming, and the like of the lighting load 1. Do it. Note that the specific operation is the same as that of the first embodiment, and a description thereof will be omitted.

In this embodiment, a lighting apparatus is a lighting fixture 10 having a lighting load 1, a lighting load control unit 2 and a control unit 3.
And the transmitter 20 including the human body detection unit 4, the same operation and effect as in the first embodiment can be obtained, and at the same time, the degree of freedom of the installation location of the human body detection unit 4 can be increased, and the usability is improved. There is an advantage of doing so. (Embodiment 3) Since the configuration of this embodiment is the same as that of Embodiment 1, illustration and description are omitted. In the first and second embodiments, when the light-off notification function is activated during the fade-out and the output of the lighting load 1 is maintained at a constant value (50%), when the human body detection signal is input, the control unit 3 normally operates. However, in the present embodiment, not only when the output of the lighting load 1 is maintained at a constant value (50%) but also when the fade-out occurs, as in the first or second embodiment. Even when a human body detection signal is input on the way, the control unit 3 performs fade-in faster than normal fade-in from that point.

As shown in FIG. 6, a human body detection signal is input during a fade-out until the light reaches a predetermined value (50%) at which the light-off notification function works, or a light-off notification as shown in FIG. When the human body detection signal is input during the fade-out from the constant value (50%) to the extinguishing (0%) after the function ends, the control unit 3 performs the fade for returning the lighting load 1 to the initial lighting state. The speed (slope) of the IN is faster than the speed of first fading in from the OFF state (0%) to the full ON state (100%). For example, the output of the lighting load 1 is changed from 0% to 100% in 0.2 seconds. Speed to continuously increase (= V (0.2) _0-100 )
Fade in.

As in the present embodiment, even when a human body detection signal is input during a fade-out, if the control unit 3 performs a fade-in faster than a normal fade-in from that point, the control according to the first or the second embodiment is possible. More comfort than 2 is obtained. (Embodiment 4) FIG. 8 is a block diagram showing Embodiment 4 of the present invention, in which an illuminance detection unit 5 is provided in Embodiment 1, but the configuration other than the illuminance detection unit 5 is in Embodiment 1.
Therefore, the common portions are denoted by the same reference numerals and description thereof is omitted.

The illuminance detector 5 includes an illuminance sensor 5a comprising a photoelectric conversion element such as CdS, and an amplifier 5b for amplifying the output of the illuminance sensor 5a, and controls the illuminance level signal according to the ambient illuminance. 3 is output. By the way, in the first to third embodiments, when the human body detection signal is input when the output of the lighting load 1 is equal to or more than the predetermined value, the control unit 3 performs the fade-in faster than the normal fade-in. In the present embodiment, when the illuminance level signal from the illuminance detection unit 5 exceeds the threshold value when the output of the illumination load 1 is 0% (when the light is turned off), the control unit 3 performs faster than normal fade-in. The present embodiment is characterized in that fade-in is performed and such control is performed.

Next, the operation of this embodiment will be described in detail with reference to FIG. First, in a normal operation, when a human body detection signal is input from the human body detection unit 4, the control unit 3 causes the timer 4a to start counting the lighting holding time τ. When the input illuminance level signal exceeds the threshold value, it is necessary to illuminate, so that the illumination load 1 is moved to the normal speed (= V (0.
8) Fade in at _0-100 ). Then, when the timer 4a completes the counting of the lighting holding time τ, the fade-out starts at a timing such that the lighting load 1 is turned off.

On the other hand, if the surroundings are bright when the human body detection signal is input, that is, if the illuminance level signal input from the illuminance detection unit 5 exceeds the threshold value, no illumination is required. The unit 3 does not turn on the lighting load 1. Then, if the illuminance level signal falls below the threshold value while the timer 4a is counting the lighting holding time τ, the control unit 3 starts fading in the lighting load 1 from that point. At this time, the control section 3 performs the fade-in at a speed (= V (0.2) _0-100 ) faster than the speed of the fade-in during normal operation (= V (0.8) _0-100 ).

As described above, in the present embodiment, when there is a person in the detection area and the surroundings suddenly become dark so that illumination is required during the counting of the lighting holding time τ, the normal state is higher than in the normal state. The lighting load 1 can be faded in quickly so that light can be obtained as soon as the information becomes dark, and comfort can be obtained. In addition, as shown in FIG. 10, the same effect can be obtained by providing the illumination device 10 with the illuminance detection unit 5 similar to the present embodiment and performing the same control as the present embodiment with respect to the configuration of the second embodiment. Can be.

(Embodiment 5) The configuration of this embodiment is the same as that of Embodiment 1, so that illustration and description are omitted. In the present embodiment, the daylight mode in which the lighting load 1 is not turned on even when the human body detection signal is input from the human body detection unit 4, and when the human body detection signal is input, the output of the lighting load 1 is set to 100% of the rated (or maximum) output. In the night mode, the output of the lighting load 1 is faded up to 100% of the rated (or maximum) output when the human body detection signal is input (fade-in is slower than the fade-in in the night mode). And it has a midnight mode that lights up. In each mode, the control unit 3 may have a clock function, and when a preset time is reached, the mode may be shifted from the daytime mode to the night mode or the midnight mode, or a setting switch may be provided to switch the mode. The time may be set, or the illuminance detection unit 5 described in the third embodiment may be provided to shift from the day mode to the night mode when the state in which the illuminance level signal is equal to or less than the predetermined value continues for a certain period of time. You may.

Next, the operation of this embodiment will be described in detail with reference to FIG. First, when a human body detection signal is input from the human body detection unit 4 when the mode is set to the night mode, the control unit 3 changes the output of the lighting load 1 from 0% to 100% at a predetermined speed (= V ( 0.8) _0-100 ), the lighting load 1 is turned on, and the timer 3a starts counting the lighting holding time τ. From the time when this counting is completed, the same speed as the fade-in (= V (0.8))
Start fade-out at _100-0 ). Here, when the human body detection signal is input from the human body detection unit 4 during the fade-out, the control unit 3 controls the normal speed (= V (0.8)
Fade-in at a speed faster than ( _0-100 ) (= V (0.2) _0-100 ), the lighting load 1 is fully lit at 100%.

When a human body detection signal is input from the human body detection unit 4 after the mode is changed from the night mode to the midnight mode, the control unit 3 changes the output of the lighting load 1 from 0% to 10%.
Speed to continuously increase to 0% in 2.5 seconds (= V (2.
5) Fade in at _0-100 ) to turn on the illumination load 1 and to cause the timer 3a to start counting the lighting holding time τ, and from the time when this counting is completed, the same speed as the fade-in (= V (2.5)) _0-100 ) to start fade-out. Here, when the human body detection signal is input from the human body detection unit 4 during the fade-out, the control unit 3 is faster than the normal speed (= V (2.5) _0-100 ). The fade-in is performed at a speed (= V (1.5) _0-100 ) that continuously increases from 0% to 100% in 1.5 seconds, and the lighting load 1 is fully lit at 100%.

As described above, in the present embodiment, the fade-in is performed faster than the normal speed in each mode according to the time zone (the mode corresponding to the time zone), thereby providing a more comfortable lighting environment. Can be obtained. (Embodiment 6) Since the configuration of this embodiment is common to that of Embodiment 1, illustration and description are omitted. In the first embodiment, when a human body detection signal is input from the human body detection unit 4 as shown in FIG. 12A, the control unit 3 fades in at a normal speed (= V (0.8) _0-100 ). Go and lighting load 1
Is turned on at the rated output of 100% and fades out at the same speed (= V (0.8) _100-0 ). If a human body detection signal is input from the human body detection unit 4 during the fade out, the speed is higher than the normal speed. Speed (= V (0.
2) Fade in at _0-100 ) to fully light the lighting load 1 at 100%.

On the other hand, in the present embodiment, FIG.
As shown in (b), when the maximum output of the illumination load 1 at the time of detecting the human body is set to 50%, when the human body detection signal is input from the human body detection unit 4, the control unit 3 executes the normal speed (= V (0.8 )
_0-100 ), the lighting load 1 is lit at 50% output (dimming lighting), and fade-out is performed at the same speed (= V (0.8) _100-0 ), and the human body is detected during the fade-out. If the human body detection signal is input from the unit 4, the speed is faster than the normal speed, and the speed at which the illumination load 1 is continuously increased from 0% to 50% in 0.2 seconds (= V
(0.2) _0-50 ), and the lighting load 1 is dimmed and lit at 50%. Alternatively, when the maximum output of the illumination load 1 at the time of detecting the human body is set to 30% as shown in FIG. 3C, when the human body detection signal is input from the human body detection unit 4, the control unit 3 performs normal speed (= V (0.8) _0-100 ), the lighting load 1 is turned on with 30% output (dimming lighting), and fade-out is performed at the same speed (= V (0.8) _100-0 ). If the human body detection signal is input from the human body detection unit 4 during this time, the speed is faster than the normal speed, and the speed at which the illumination load 1 is continuously increased from 0% to 30% in 0.1 seconds (= V (0.1) ₀₋ Fade in at ₃₀ ) and dimming the lighting load 1 at 30%.

As described above, in this embodiment, the illumination load 1
By performing the fade-in faster than the normal speed at each output level according to the output level at the time of turning on, a more comfortable lighting environment can be obtained. In the present embodiment, the external trigger for starting the fade-in during the fade-out is the human body detection signal from the human body detection unit 4, but the illuminance level signal input from the illuminance detection unit 5 is used as the external trigger, and the threshold is used. Fade-in may be started when an illuminance level signal exceeding the value is input.

(Embodiment 7) By the way, in Embodiment 6, regardless of the timing at which the human body detection signal is input from the human body detection section 4 during the fade-out (the output of the illumination load 1 at the time when the human body detection signal is input). Although the fade-in is performed faster than usual, in the present embodiment, the speed at which the fade-in is performed again is changed according to the above timing (the output of the lighting load 1 at the time when the human body detection signal is input). There is a feature. However, the configuration of the present embodiment is the same as that of the first embodiment, as in the sixth embodiment, and thus illustration and description are omitted.

Next, the operation of this embodiment will be described in detail with reference to FIG. First, as shown in FIG. 13A, when the maximum output of the illumination load 1 at the time of detecting a human body is set to 100%, when a human body detection signal is input from the human body detection unit 4, the control unit 3 performs normal speed ( = V (0.8) _0-100 ), and the lighting load 1 is fully lit at 100% output, and fades out at the same speed (= V (0.8) _100-0 ). When the human body detection signal is input from the detection unit 4, it is faded in faster than normal speed, and the lighting load 1 is fully lit at 100%, which is common to the first and sixth embodiments. Here, the speed of the fade-in is changed depending on whether the output of the lighting load 1 at the time when the human body detection signal is input is 50% or more, for example,
If the human body detection signal is input when the output of the lighting load 1 is 50% or more, the control unit 3 changes the lighting load 1 from 0% to 100%.
Speed to increase continuously to 0.2% in 0.2 seconds (= V (0.2)
_0-100 ) to fade in. On the other hand, if the human body detection signal is input when the output of the lighting load 1 is 50% or less,
The control unit 3 performs fade-in at a speed (= V (0.4) _0-100 ) at which the illumination load 1 is continuously increased from 0% to 100% in 0.4 seconds.

When the maximum output of the lighting load 1 at the time of detecting a human body is set to 50% as shown in FIG. Fade in at the speed (= V (0.8) _0-100 ) to turn on the lighting load 1 at 50% output (dimming lighting) and fade out at the same speed (= V (0.8) _100-0 ) If the human body detection signal is input when the output of the lighting load 1 is 25% or more during the fade-out, the control unit 3 increases the lighting load 1 from 0% to 50% at a speed higher than the normal speed. Speed to continuously increase in 2 seconds (= V
(0.2) _0-50 ), and the lighting load 1 is dimmed and lit at 50%. On the other hand, if the human body detection signal is input when the output of the lighting load 1 is 25% or less, the control unit 3 continuously increases the lighting load 1 from 0% to 50% in 0.3 seconds (= V ( 0.3) Fade in at _0-50 ).

Alternatively, when the maximum output of the illumination load 1 at the time of detecting a human body is set to 30% and a human body detection signal is input from the human body detection section 4 as shown in FIG. Fade in at the speed (= V (0.8) _0-100 ) to turn on the lighting load 1 at 30% output (dimming lighting) and fade out at the same speed (= V (0.8) _100-0 ). If the human body detection signal is input when the output of the lighting load 1 is 15% or more during the fade-out, the control unit 3 increases the speed of the lighting load 1 to 0% faster than the normal speed.
Speed from 0.1 to 30% in 0.1 seconds (=
V (0.1) _0-30 ) and fade in the lighting load 1 by 30%
Lights dimmed with. On the other hand, if the human body detection signal is input when the output of the lighting load 1 is 15% or less, the control unit 3 continuously increases the lighting load 1 from 0% to 30% in 0.15 seconds (= V ( 0.15) Fade in at _0-30 ).

Here, the smaller the output of the lighting load 1 at the time when the human body detection signal is input during the fade-out, the slower the fade-in speed is. This is because the lighting load at the time when the human body detection signal is input. Lighting from the time when the lighting load 1 is turned off as the output of 1 is smaller (normal lighting)
This is because the fade-in is performed at a speed close to the speed.
In the present embodiment, the maximum output of the lighting load 1 (100
%, 50%, 30%), two determination values are provided, but three or more determination values may be provided.

As described above, in this embodiment, the illumination load 1
And the timing at which the human body detection signal is input from the human body detection unit 4 during fade-out (the output of the lighting load 1 at the time when the human body detection signal is input).
Therefore, the speed at which the fade-in is performed again is changed, so that a more comfortable lighting environment can be obtained. In the present embodiment, the external trigger for starting the fade-in during the fade-out is the human body detection signal from the human body detection unit 4, but the illuminance level signal input from the illuminance detection unit 5 is used as the external trigger, and the threshold is used. Fade-in may be started when an illuminance level signal exceeding the value is input.

(Eighth Embodiment) The configuration of the present embodiment is common to that of the first embodiment, so that illustration and description are omitted. In the present embodiment, as in the fifth embodiment, the daylight mode in which the lighting load 1 is not turned on even when a human body detection signal is input from the human body detection unit 4, and the output of the lighting load 1 is rated (or output) when the human body detection signal is input. Maximum) Fade-in to 100% of the output and night mode in which lighting is performed. When a human body detection signal is input, the output of the lighting load 1 is faded in to 30% of the rated output (fade-in that is slower than the night-mode fade-in). And a midnight mode for lighting. In each mode, the control unit 3 may have a clock function, and when a preset time is reached, the mode may be shifted from the daytime mode to the night mode or the midnight mode, or a setting switch may be provided to switch the mode. The time may be set, or the third embodiment
The illuminance detection unit 5 described in (1) may be provided to shift from the daytime mode to the night mode when the state in which the illuminance level signal becomes equal to or less than the predetermined value continues for a certain period of time.

Next, the operation of this embodiment will be described in detail with reference to FIG. First, when a human body detection signal is input from the human body detection unit 4 when the mode is set to the night mode, the control unit 3 changes the output of the lighting load 1 from 0% to 100% at a predetermined speed (= V ( 0.8) _0-100 ), the lighting load 1 is turned on, and the timer 3a starts counting the lighting holding time τ. From the time when this counting is completed, the same speed as the fade-in (= V (0.8))
Start fade-out at _100-0 ). Here, when the human body detection signal is input from the human body detection unit 4 during the fade-out, the control unit 3 controls the normal speed (= V (0.8)
Fade-in at a speed faster than ( _0-100 ) (= V (0.2) _0-100 ), the lighting load 1 is fully lit at 100%.

When the human body detection signal is input from the human body detection unit 4 after the mode is changed from the night mode to the midnight mode, the control unit 3 changes the output of the lighting load 1 from 0% to 30%.
Speed to 1.5% in continuous to 1.5% (= V (1.5)
With lights the lighting load 1 and fade-in _0-30), the timer 3a to start to count the turn-on duration tau, the same speed as fade-from the time when the count has been completed (= V (1.5) _{0 - 30} ) Start the fade out. Here, when the human body detection signal is input from the human body detection section 4 during the fade-out, the control section 3 is faster than the normal speed (= V (1.5) _0-30 ). Fade-in is performed at a speed (= V (0.8) _0-30 ) that continuously increases from 0% to 30% in 0.8 seconds, and the lighting load 1 is dimmed and lit at 30%.

As described above, in the present embodiment, the speed at which fade-in is performed again is changed according to the time zone (the mode corresponding to the time zone) and the output level when the lighting load 1 is turned on. , A more comfortable lighting environment can be obtained. In the present embodiment, the external trigger for starting the fade-in during the fade-out is the human body detection signal from the human body detection unit 4, but the illuminance level signal input from the illuminance detection unit 5 is used as the external trigger, and the threshold is used. Fade-in may be started when an illuminance level signal exceeding the value is input.

(Embodiment 9) The configuration of this embodiment is the same as that of Embodiment 1, so that illustration and description are omitted. In the present embodiment, while the lighting notification function is activated, the fade-out is temporarily stopped halfway, and the lighting load 1 is lit with a constant output for a predetermined time (hereinafter, this time is referred to as a notification time Ta). When the human body detection signal is input from the human body detection unit 4, the speed at which the fade-in is performed again according to the input timing of the human body detection signal (the elapsed time Tb of the notification time Ta at the time when the human body detection signal is input). There is a characteristic in changing the.

Next, the operation of this embodiment will be described in detail with reference to FIG. Now, assuming that the notification time Ta is set to 5 seconds, if the human body detection signal is input when the elapsed time Tb is 2 seconds, the control unit 3 sets the lighting load 1 to 0.
Fade-in is performed at a speed of continuously increasing from% to 100% in 0.2 seconds (= V (0.2) _0-100 ). On the other hand, when the human body detection signal is input when the elapsed time Tb is 4 seconds, the control unit 3 continuously increases the lighting load 1 from 0% to 100% in 0.4 seconds (= V ( 0.4) _{0 -100)}
Fade in with. Here, the longer the elapsed time Tb at the time when the human body detection signal is input, the slower the fade-in speed is. This is because the fact that the elapsed time Tb at the time when the human body detection signal is input is long is turned off. It is considered that a person entered the detection area for the first time while the notification function was working, and such a situation is similar to turning on the illumination load 1 from the off state (0%), This is because it is preferable to fade in at a speed close to the normal speed.

As described above, in this embodiment, the speed at which the fade-in is performed again is changed according to the timing at which the human body detection signal is input (the elapsed time Tb of the notification time Ta at the time when the human body detection signal is input). As a result, a more comfortable lighting environment can be obtained.

[0049]

As described above, according to the present invention, the lighting load, the detecting means for detecting the surrounding condition, and the amount of electric power supplied from the external power supply to the lighting load in accordance with at least the detection result by the detecting means. Control means for turning on / off and dimming the lighting load, wherein the control means has a predetermined inclination when an external trigger signal is input when the lighting load is in a predetermined state. Since the lighting load is faded in and turned on with a larger inclination, there is an effect that a comfortable light can be provided by changing the inclination of the fade-in when the lighting load is turned on according to the situation. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment.

FIG. 2 is an explanatory diagram for explaining the operation of the above.

FIG. 3 is an explanatory diagram for explaining the operation of the above.

FIG. 4 is an explanatory diagram for explaining an operation of a conventional example as compared with the above.

FIG. 5 is a block diagram showing a second embodiment.

FIG. 6 is an explanatory diagram for explaining an operation of a third embodiment.

FIG. 7 is an explanatory diagram for explaining the above operation.

FIG. 8 is a block diagram showing a fourth embodiment.

FIG. 9 is an explanatory diagram for explaining the operation of the above.

FIG. 10 is a block diagram showing another configuration of the above.

FIG. 11 is an explanatory diagram for explaining the operation of the fifth embodiment.

FIG. 12 is an explanatory diagram for explaining the operation of the sixth embodiment.

FIG. 13 is an explanatory diagram for explaining the operation of the seventh embodiment.

FIG. 14 is an explanatory diagram for explaining the operation of the eighth embodiment.

FIG. 15 is an explanatory diagram for explaining the operation of the ninth embodiment.

FIG. 16 is an explanatory diagram for explaining an operation of a conventional example.

FIG. 17 is an explanatory diagram for explaining the operation of another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lighting load 2 Load control part 3 Control part 4 Human body detection part AC commercial AC power supply

Claims (10)

[Claims] 1. An illumination load, a detecting means for detecting a surrounding condition, and an amount of electric power supplied from an external power supply to the lighting load in accordance with at least a detection result of the detecting means, to turn on the lighting load. Control means for turning off the light and adjusting the light intensity. The control means controls the lighting load with a slope larger than a predetermined slope if a trigger signal is input from the outside when the lighting load is in a predetermined state. The lighting device characterized in that the lighting is performed by fading in. 2. The lighting device according to claim 1, wherein the predetermined state is a state in which an output level of the lighting load is equal to or higher than a predetermined value. 3. The lighting device according to claim 1, wherein the predetermined state is a state in which the lighting load is turned off. 4. The apparatus according to claim 1, wherein the predetermined state is a state in which the control means is performing a fade-out operation for gradually reducing the output level of the lighting load.
The lighting device according to the above. 5. The detecting means detects the presence or absence or movement of a person within a detection range and outputs a human body detection signal to the control means. The control means receives the human body detection signal. A predetermined lighting holding time is counted from a point in time, and the lighting load is turned on at a predetermined output level during the counting, and the predetermined state is a state where the lighting holding time is being counted. The lighting device according to claim 1. 6. The detection means detects presence or absence or movement of a person in a detection range and outputs a human body detection signal to the control means, and uses the human body detection signal as the trigger signal. The lighting device according to claim 1. 7. A luminaire including at least the lighting load, control means, and receiving means for receiving a remote control signal, and at least the detecting means and a transmitter for transmitting the remote control signal according to a detection result by the detecting means. The lighting device according to claim 1, wherein the remote control signal is used as the trigger signal. 8. The detecting means outputs an illuminance level signal corresponding to the surrounding illuminance to the control means, and uses the illuminance level signal exceeding a predetermined level as the trigger signal. Item 2. The lighting device according to Item 1. 9. The lighting device according to claim 1, wherein the control means changes a gradient of a fade-in when the lighting load is turned on in accordance with a time zone. 10. The lighting device according to claim 1, wherein the predetermined state is a state in which the output level of the lighting load is higher than one of a plurality of predetermined values.