JPH10154589A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption without losing security performance by controlling turning ON a lighting fixture part other than during human body detection after completion of count operation of a timer setting time. SOLUTION: This luminaire is provided with an lighting fixture part 10 having a light source 13, luminance detecting means 20, human body detecting means 30 and a control unit 15 for controlling lighting of the lighting fixture part 10. The lighting fixture part 10 is lighting-controlled to a first brightness level when the detecting means 30 detects a human body and also the detection luminance by the detecting means 20 is below a given luminance. In this case, the control unit 15 is provided with a timer part 16 starting operation when a signal in which the detection luminance by the detecting means 20 is below the given luminance is received. The timer part 16 is provided with a timer setting part 40 for setting a timer setting time T, the lighting fixture part 10 is lit and controlled at a second brightness level lower than a first brightness level during the timer setting time T when detection luminance of the detecting means 20 is the given luminance, and the detecting means 30 does not detect the human body, and the lighting fixture part 10 is turned off and controlled after the timer setting time T.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a lighting fixture.

[0002]

2. Description of the Related Art FIGS. 10 and 11 show a conventional lighting fixture (first conventional example).
This is a bracket-type lighting fixture that can be attached to a wall surface, and includes a lighting unit 10, an illuminance detection unit 20, and a human body detection unit 30.

[0003] The lamp unit 10 includes an appliance main body 11 mounted on a wall surface and a glove 12 disposed so as to cover the front side thereof, and a light source (not shown) is accommodated therein. Have been. The illuminance detecting means 20 is attached to a lower part of the fixture main body 11, and detects the brightness around the lighting fixture. Further, the human body detecting means 30 is a pyroelectric sensor, and is attached to the lower part of the instrument main body 11 in proximity to the illuminance detecting means 20 so as to detect the presence of a human body.

In the illuminating device having such a configuration, the surrounding illuminance detected by the illuminance detecting means 20 is equal to or less than a predetermined illuminance, and the human body detecting means 30 is used.
When the human body does not detect the presence of a human body, the lamp unit 10 is controlled to the dimmed lighting state.
% Lighting) state, and is controlled to continue the full lighting state for a predetermined lighting holding time t even after the detection of the presence of the human body is completed. When the surrounding illuminance detected by the illuminance detecting means 20 exceeds a predetermined illuminance set in advance, the lamp unit 10 is turned off regardless of whether or not a human body is detected.

FIGS. 12 and 13 show another conventional lighting fixture (second conventional example). The difference from the first conventional example is that the lamp unit 10 is controlled by an illuminance detecting means 20. In the case where the detected illuminance is equal to or less than a predetermined illuminance, the full light is turned on only when the human body detecting means 30 detects a human body, and the light is turned off in other states. The configuration is substantially the same as the conventional example.

[0006]

However, in the lighting apparatus shown in the above-mentioned first conventional example, as long as the surrounding illuminance detected by the illuminance detecting means 20 is equal to or less than a predetermined illuminance, a human body is not required. Even if the presence of the lamp unit is not detected, the lamp unit 10 is in the dimming lighting state, so that the lamp unit is not necessary even when the surrounding illuminance is not more than a predetermined illuminance set beforehand, for example, overnight at night. There is a problem that the power is wasted when 10 is turned on.

[0007] Further, in the lighting equipment shown in the second conventional example,
The lighting unit 10 is used only when the surrounding illuminance detected by the illuminance detecting means 20 is equal to or less than a predetermined illuminance, and only when the human body detecting means 30 detects the presence of a human body.
Is turned on fully, and at other times, the lamp unit 10 is turned off. For example, in the case of a night entrance, the entrance is dark unless the human body detecting means 30 detects a human body. Not only is it unfavorable, but it is not suitable for welcoming people.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a lighting apparatus in which power consumption is suppressed without impairing security.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a lighting device having at least one light source and an illuminance for detecting ambient brightness. Detecting means, a human body detecting means for detecting the presence of a human body, and a control unit for controlling lighting of the lamp unit, wherein the human body detecting means detects a human body when the detected illuminance of the illuminance detecting means is equal to or less than a predetermined illuminance. When the lamp part is the first
In a lighting fixture that is controlled to be turned on at a brightness level, a timer unit is provided in the control unit, and when the detected illuminance of the illuminance detection unit is equal to or less than the predetermined illuminance and the human body detection unit does not detect a human body, During the operation of the timer section, the lighting section was controlled to be turned on at a second brightness level lower than the first brightness level, and after the timer section was completed, the lighting section was controlled to turn off. It is characterized by the following.

According to the second aspect of the present invention, the first aspect is provided.
The lighting device according to claim 1, wherein the timer unit starts operation in response to a signal indicating that the illuminance detection unit has detected the predetermined illuminance.

According to the third aspect of the present invention, there is provided the first aspect.
Alternatively, in the lighting fixture according to claim 2, the timer unit is provided with a time setting unit for setting a timer setting time.

[0012]

1 to 5 show a first embodiment of a lighting fixture according to the present invention.
This is a bracket-type lighting fixture that can be attached to a wall surface, and includes a lighting unit 10, an illuminance detecting unit 20, a human body detecting unit 30, a time setting unit 40, and a power supply circuit unit 50.

The lighting unit 10 includes an appliance body 11 attached to a wall surface and a glove 1 attached to the appliance body 11.
And a light source 13, for example, a single-ended fluorescent lamp, is accommodated therein. The lighting circuit unit 1 having a dimming control function is provided inside the appliance body 11.
4 are connected to and housed in the light source 13 so as to control lighting of the light source 13. Further, a control unit 15 housed inside the appliance body 11 is connected to the lighting circuit unit 14, and the operation of the lighting circuit unit 14 can be controlled by the control unit 15. In addition, the control unit 15 includes the appliance body 1.
The illuminance detecting means 20 and the human body detecting means 30 are connected together with the timer section 16 housed inside of the apparatus 1. When the illuminance detected by the connected illuminance detection unit 20 becomes equal to or less than a predetermined illuminance, the control unit 15 sends a signal to the timer unit 16 to start a timer operation.

The illuminance detecting means 20 is attached to the lower side of the fixture main body 11 so as not to be affected by the light of the lamp unit 10, and detects the brightness around the lighting fixture. Further, the human body detecting means 30 is a pyroelectric sensor, and is close to the illuminance detecting means 20 at a position below the appliance main body 11 and not affected by the light of the lamp unit 10 like the illuminance detecting means 20. It is mounted to detect the presence of a human body. A lens (not shown) for controlling a detection range is provided on the front side of the illuminance detection unit 20 and the human body detection unit 30 which is a detection side.

As shown in FIG. 5, the time setting section 40 is, for example, a rotary switch provided below the illuminance detecting means 20 and the human body detecting means 30 attached to the outer lower surface of the instrument body 11, and A timer setting time T that is connected to the timer unit 16 and specifies the operation time width of the timer unit 16 can be set. The power supply circuit unit 50 generates a DC voltage from the AC voltage of the commercial AC power supply 60 and supplies the DC voltage to the lamp unit 10 side. Also, the illuminance detecting means 2
In the vicinity of 0 and the human body detecting means 30, a lighting holding time adjustment switch 17 for setting a lighting holding time t, which is a time for keeping the light source 13 in a full lighting (100% lighting) state even after the end of the human body detection, A lighting illuminance adjustment switch 18 for adjusting the dimming rate of the light source 13 is provided.

The lighting fixture thus configured operates as follows. That is, as shown in FIGS. 3 and 4, first, the timer unit 16 sets the timer illuminance detected by the illuminance detection unit 20 in a state where the timer setting time T is set by the time setting unit 40. When the illuminance falls below the predetermined illuminance, a signal indicating that the detected illuminance has fallen below the predetermined illuminance is received from the control unit 15, and the timer operation is started. Next, during the timer setting time T set by the time setting unit 18 when the detected illuminance is equal to or less than the predetermined illuminance, that is, when the detected illuminance is equal to or less than the predetermined illuminance and the timer unit 16 is operating, the human body When the detecting unit 30 detects a human body, the lighting unit 10 is controlled to be turned on in the full brightness (100% lighting) state, which is the first brightness level, so that the full lighting state is maintained for the lighting holding time t after the human body detection is completed. It is made to hold. When the illuminance detected by the illuminance detecting means 20 is equal to or less than a predetermined illuminance and the human body detecting means 30 does not detect a human body during the timer set time T, the lighting unit 1
0 is controlled to be dimmed at a second brightness level lower than the first brightness level. When the timer operation of the timer section 16 is completed, the human body detecting means 30
When the presence of a human body is detected, the lighting unit 10 is controlled to be turned on to the full lighting state so that the full lighting state is maintained for the lighting holding time t even after the end of the human body detection, and when the presence of the human body is not detected. Controls the lighting unit 10 to be turned off. When the illuminance detected by the illuminance detection means 20 becomes higher than a predetermined illuminance, the lamp unit 10 is controlled to be turned off even when the timer unit 16 is operating.

Such a lighting device can be used as a porch light mounted on the wall of the entrance of a house, and the detection area of the human body detecting means 30 is provided by a lens provided on the front side of the human body detecting means 30. As shown in FIG. 2, it is set within a fan-shaped range having a width W having a radius L and a central angle θ about the human body detecting means 30. Here, the range of this sector is, for example, a radius L of about 5
m, the central angle θ is about 110 °, and the width W is about 9 m.

In the lighting fixture thus constructed, the control unit 15 is provided with the timer unit 16 and the timer unit 1
6 starts counting the timer setting time T almost simultaneously when the illuminance detected by the illuminance detection means 20 becomes equal to or less than the predetermined illuminance. When the timer unit 16 is operating, the human body detection means 3
0, the lighting unit 10 is controlled to be turned on at the first brightness level when the human body is detected, and when the human body is not detected, the lighting unit 10 is turned on at the second brightness level lower than the first brightness level.
Dimming control at the brightness level of. For this reason, during the operation of the timer unit 16, the lamp unit 10 is in the dimming and lighting state without detecting the presence of a human body, and for example, the entrance to which the lighting fixture is attached is illuminated at the second brightness level. Not only is it not dark and is preferable from the viewpoint of crime prevention, but when a human body is detected, it is fully lit (lighted at the first brightness level) so that sufficient brightness can be obtained, and an optimal light for welcoming a person can be obtained. . Further, the time for turning on the light source 13 at the second brightness level is set by the timer setting time T, and the light source 13 is continuously turned on during the timer setting time T even if the detected illuminance is equal to or less than the predetermined illuminance. Only
After the count operation of the timer set time T is completed, the light source 13
Is turned off except when a human body is detected, so that the lamp unit 10 is turned off except when a human body is detected, and power is not wasted.

Further, since the counting of the timer set time T is started after the detected illuminance becomes equal to or less than the predetermined illuminance, the lamp unit 10 does not turn on during the daytime when the surrounding area is bright.
No power is wasted.

Further, since the timer section 16 is provided with the time setting section 40 for setting the timer setting time T, the time for keeping the lamp section at the second brightness level even when the human body is not detected can be freely set. Can be set.

Note that in the first embodiment,
Although the light source 13 is a single cap fluorescent lamp, the present invention is not limited to this, and the light source 13 is an incandescent lamp, and the lighting circuit unit 14 shown in FIG.
May be a dimming circuit section.

FIGS. 6 to 9 show a lighting apparatus according to a second embodiment of the present invention. The difference from the first embodiment is as shown in FIGS. 6 and 7. FIG. In addition to the light source 13 which is a ring-shaped fluorescent lamp, another light source 19 such as an incandescent light bulb is housed inside the lamp unit 10, and the two light sources are controlled by the control unit 15 via the lighting circuit unit 14. Lighting control is performed, and the other configuration is the same as that of the first embodiment.

When the illuminance detected by the illuminance detecting means 20 becomes equal to or less than a predetermined illuminance, the illuminating apparatus having the above-described configuration receives a signal indicating that the detected illuminance has become equal to or less than the predetermined illuminance from the control unit 15 and outputs the signal from the control unit 15 The unit 16 starts counting the timer set time T. During the timer set time T from the start of the timer operation, the lamp unit 10
Is turned on (lit) to obtain a second brightness level. When the human body detecting means 30 detects a human body in this state, another light source 19 is detected.
Is turned on (lit), and the light source 13 and another light source 19 are set as the first brightness level brighter than the second brightness level.
Keeps the lighting state for the lighting holding time t even after the end of the human body detection. Further, after the timer operation of the timer section 16 is completed, the light source 13 and the other light source 19 are turned off, and both the light source 13 and the other light source 19 are turned on only when a human body is detected when the illuminance is equal to or less than a predetermined illuminance. To obtain the first brightness level, and keep the lighting state for the lighting holding time t even after the end of the human body detection. When the illuminance detected by the illuminance detecting means 20 becomes higher than a predetermined illuminance, both the light sources 13 and 19 are controlled to be turned off even when the timer unit 16 is operating.

With this configuration, in the lighting apparatus according to the present embodiment, in addition to the effects substantially similar to those of the first embodiment, the two light sources 13 and 19 need only be turned on and off. There is also an effect that it is not necessary to provide a dimming function section in the circuit section 14.

In the second embodiment,
Of the two light sources, the light source 13 is turned on continuously during the timer set time T from the start of the timer operation of the timer unit 16, but the present invention is not limited to this, and the following is also possible. Good. In other words, using two light sources having different brightnesses, if the human body is detected during the timer set time T after the illuminance detected by the illuminance detection unit becomes equal to or less than the predetermined illuminance, the brighter light source is turned on. To obtain the first brightness level and turn off the other light source. If no human body is detected, the brighter light source is turned off and the other light source is turned on to obtain the second brightness level. Then, after the timer operation of the timer section is completed, both of the two light sources are turned off, and when a human body is detected at a predetermined illuminance or less, only the brighter light source is turned on.

Further, in the first and second embodiments, the time setting section 40 can set the operation time width of the timer section 16 as the timer setting time T, but the present invention is not limited to this. The time setting unit may be configured to be able to set a start time and an end time. In this case, the timer setting time T is set after the start time and the detected illuminance is equal to or less than a predetermined illuminance. It is from the time when it becomes, until the end time.

[0027]

As described above, according to the first aspect of the present invention, during operation of the timer section,
Even if the presence of a human body is not detected, the lighting equipment is attached, for example, the entrance is illuminated at the second brightness level and is not dark, which is preferable not only for crime prevention, but also when the human body is detected in this state. Illuminated at the first brightness level, which is brighter than the brightness level of, can be made sufficiently bright, and an optimal light for welcoming a person can be obtained. Further, the time for turning on the lamp unit at the second brightness level is set by the timer setting time, and the lamp unit is continuously turned on only during the timer setting time even if the detected illuminance is equal to or less than the predetermined illuminance. Because, after the count operation of the timer set time was completed, the lighting part was turned off except when the human body was detected,
No power is wasted.

According to the second aspect of the present invention, there is provided the first aspect.
In addition to the effects of the invention described above, since the counting of the timer setting time is started after the detected illuminance becomes equal to or less than the predetermined illuminance, the lamp unit is not turned on in the daytime when the surroundings are bright, and power is wasted. Is even less.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, since the timer section is provided with a time setting section for setting a timer setting time, the lamp section is provided. Can be set freely even when there is no human body detection.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a lighting fixture according to the present invention.

FIG. 2 is a perspective view illustrating a human body detection range according to the first embodiment;

FIG. 3 is a flowchart illustrating the operation of the above.

FIG. 4 is a time chart for explaining the above operation.

FIG. 5 is a plan view showing a time setting unit according to the embodiment.

FIG. 6 is a block diagram illustrating a lighting apparatus according to a second embodiment of the present invention.

FIG. 7 is a schematic diagram showing a partial sectional state of the above.

FIG. 8 is a flowchart illustrating the operation of the above.

FIG. 9 is a time chart for explaining the above operation.

FIG. 10 is a perspective view showing a conventional lighting fixture (first conventional example).

FIG. 11 is a time chart for explaining the above operation.

FIG. 12 is a perspective view showing a conventional lighting fixture (second conventional example).

FIG. 13 is a time chart for explaining the above operation.

[Explanation of symbols]

 Reference Signs List 10 lamp unit 13 light source 15 control unit 16 timer unit 19 light source 20 illuminance detection means 30 human body detection means 40 time setting unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takuya Shinda 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Yosuke Kondo 1048 Kadoma Kadoma Kadoma City Osaka Prefecture

Claims (3)

[Claims] A lighting unit having at least one light source; an illuminance detecting unit detecting ambient brightness; a human body detecting unit detecting presence of a human body; and a control unit controlling lighting of the lamp unit. When the human body detection unit detects a human body when the detected illuminance of the illuminance detection unit is equal to or less than a predetermined illuminance, in a lighting fixture in which the lighting unit is controlled to be turned on to a first brightness level, the control unit includes: Provide a timer section,
When the detected illuminance of the illuminance detection unit is equal to or less than the predetermined illuminance and the human body detection unit does not detect a human body, the lamp unit is set to the first position while the timer unit is operating.
A lighting device that controls the lighting at a second brightness level lower than the brightness level of the lighting device, and controls the lighting unit to be turned off after the timer unit completes its operation. 2. The luminaire according to claim 1, wherein the timer section starts operating in response to a signal indicating that the illuminance detection means has detected the predetermined illuminance. 3. The lighting fixture according to claim 1, wherein the timer unit includes a time setting unit for setting a timer setting time.