JPH09306673A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adequately control illumination by organically combining the detecting performance of a circumference detecting means for detecting a circumferential state and a remote control function using a transmitter. SOLUTION: A luminaire A has a human body sensor part 1 for detecting a circumferential state, an illumination intensity sensor part 2, a receiving part 7 for receiving a wireless control signal from a transmitter B, and a receiving intensity measuring part 8 for measuring receiving intensity. When the receiving intensity from the transmitter B is low, a luminaire control part 10 identifies the place of the transmitter B based on the receiving intensity. Based on the identified result, the luminaire control part 10 controls the detecting sensibility of the human body sensor part 1 through a sensitivity control part 3. The detecting sensibility of the place where an operator of the transmitter B exists is raised, and a human body is surely detected. As a result, the detecting performance of the human body sensor part 1 and the remote control function by the transmitter B are organically combined, and illumination is adequately controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmitter such as a wireless remote controller, a wireless control signal transmitted from the transmitter, and a lighting load that is turned on, turned off, or dimmed according to a detection result of a human body sensor or an illuminance sensor. The present invention relates to a lighting device including a lighting fixture.

[0002]

2. Description of the Related Art Conventionally, a lighting device in which a lighting load is turned on, turned off, or dimmed according to a transmitter such as a wireless remote controller, a wireless control signal transmitted from the transmitter, and a detection result of a human body sensor or an illuminance sensor. A lighting device including and has been proposed.

FIG. 10 is a block diagram showing a conventional example.
A sensor unit C including a human body sensor 20, an illuminance sensor 21, a receiver 22 that receives a wireless control signal from the transmitter D, and a transmitter D that transmits a wireless control signal in response to a human operation. I have it. The transmitter D is provided with an operation unit 28 that is operated by a person, and a transmitter control unit 29 that receives power supply from the power supply unit 27 causes a wireless control signal (for example, a wireless control signal corresponding to an operation of the operation unit 28) (for example,
A wireless signal by infrared rays) is transmitted from the transmitter 26. On the other hand, the sensor unit D has a main control unit 25 including a microcomputer and the like, and via the load power supply control unit 24 according to the control signal received by the receiving unit 22 and the detection results of the human body sensor 20 and the illuminance sensor 21. The ON / OFF control of a lighting load (not shown) and the ON / OFF control of the functions of the human body sensor 20 and the illuminance sensor 21 are performed. The sensor unit C is provided with a setting unit 23 for making various settings.

[0004]

However, in the above-described conventional example, the receiving unit 2 for simply receiving the wireless signal to the sensor unit C having the human body sensor 20 and the illuminance sensor 21 is used.
No. 2 is provided, and the received wireless signal does not include position information such as the direction of the transmitter D viewed from the sensor unit C on the receiving side and the distance to the transmitter D. That is, in general, the position information as described above cannot be obtained on the sensor unit C side, and therefore the factors such as the detection range and sensitivity of the human body sensor 20 and the illuminance sensor 21 included in the sensor unit C, and the presence or absence of the person. It could not be properly controlled because it could not match well with factors such as the brightness of the surroundings. For example, even if a person who is outside the detection range of the human body sensor or illuminance sensor included in the lighting equipment turns on the lighting equipment using the transmitter, the human body sensor or illuminance sensor is not related to the person at all. Since it detects the state, it is hard to say that it is practically functioning.

Further, as shown in FIG. 11, three wireless signal receiving sections 30 ..., Received signal strength judging section 31 for judging the receiving strength of the signal received by each wireless signal receiving section 30, and this received signal strength judging. A fuzzy inference unit 32 including an LSI or the like for performing a fuzzy inference based on the difference in the reception intensity of each received signal obtained in the unit 31 to detect the direction in which the wireless signal is transmitted, and a fuzzy inference unit 32 according to the result in the fuzzy inference unit 32. A fan E that includes a load control unit 33 that controls a load such as a motor, and that controls the device so as to detect the direction of a transmitter F that is transmitting a wireless control signal and blow the air in the direction is conventionally used. is there. The transmitter F includes an operation unit 34, a power supply unit 35, a transmission unit 36, and a transmitter control unit 37. Although this fan E can determine the direction of the transmitter F that has transmitted the wireless control signal, it cannot obtain the information on the distance to the transmitter F, and the wireless signal receiving unit that receives the wireless control signal. There is a disadvantage in that cost is increased because a plurality of 30 are required and a configuration for performing a considerably complicated logical process such as a fuzzy inference unit 32 including an LSI is required.

Further, as a conventional example in which the load is controlled in accordance with the reception intensity of the wireless control signal, the output of the lighting load and the color temperature are controlled in accordance with the wireless control signal and the reception intensity of the control signal. By adjusting the dimming level and the color temperature corresponding to the preset reception intensity, for example, the dimming level of a plurality of lighting loads is gradually changed centering on the location of the transmitter. There is something. However, in this conventional example, the purpose is to make it possible for the human body sensor to detect a person more reliably by determining the location of the transmitter (that is, the man who operates) based on the reception strength of the wireless control signal. Is completely different.

As described above, in the conventional lighting device, the human body sensor and the illuminance sensor sense a predetermined fixed detection range, and the transmitter relates to basic operation control such as on / off of the lighting equipment. Since only the control signal is transmitted, even if the transmitter controls the lighting equipment, the human body sensor or illuminance sensor may perform sensing in a range that is completely unrelated to the location of the person operating the transmitter. There is a problem that the sensor functions of the sensor and the illuminance sensor are not working effectively.

An object of the present invention is to solve the above problems, and to provide a remote control function using a transmitter with a detection performance of a situation detection means for detecting the surrounding situation such as a human body sensor and an illuminance sensor. It is an object of the present invention to provide an illuminating device that can be organically linked to perform appropriate illumination control.

[0009]

In order to achieve the above object, the invention of claim 1 comprises a transmitter for wirelessly transmitting a control signal for controlling a lighting load, and a transmitter including a lighting load. A lighting device including a lighting fixture that receives a transmitted wireless control signal to control a lighting load, the situation detecting means detecting a surrounding situation, and the wireless control transmitted from a transmitter. The luminaire is provided with a reception intensity measuring means for measuring the reception intensity of the signal, and an adjusting means for adjusting the detection performance of the situation detecting means in accordance with the reception intensity measured by the reception intensity measuring means in the luminaire. By adjusting the detection performance of the status detection means according to the reception strength of the control signal of the transmitter, that is, the information about the position of the transmitter such as the distance to the transmitter and its direction, the detection performance and transmission It is possible to perform linking and a remote control function organically by appropriate illumination control using.

According to a second aspect of the invention, in the first aspect of the invention, the lighting device is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means has the reception intensity measuring means. The detection sensitivity of the human body sensor unit is reduced when the reception intensity measured at is higher than the predetermined level, and the detection sensitivity of the human body detection unit is increased when the reception intensity is lower than the predetermined level. It is possible to adjust the detection performance of the human body detection means by raising the temperature, and to organically combine the detection performance of the human body detection means and the remote control function using the transmitter to perform appropriate lighting control.

According to a third aspect of the present invention, in the first aspect of the present invention, the lighting device is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means is the reception intensity measuring means. If the reception intensity measured at is lower than a predetermined level, the human body detection area of the human body sensor unit is expanded, and by expanding the human body detection area, the detection performance of the human body detection means is adjusted. Appropriate lighting control can be performed by organically connecting the detection performance of the detection means and the remote control function using the transmitter.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the lighting device is provided with a human body sensor portion for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means is the reception intensity measuring means. If the reception intensity measured at is higher than a predetermined level, the human body detection area of the human body sensor unit is reduced.By reducing the human body detection area, the detection performance of the human body detection means is adjusted to Appropriate lighting control can be performed by organically connecting the detection performance of the detection means and the remote control function using the transmitter.

[0013] The invention of claim 5 is the first or second or third aspect of the present invention.
Alternatively, in the invention of 4, the illumination device is provided with an illuminance sensor unit that measures the illuminance in the illuminance measurement area as the situation detection unit, and the adjustment unit has the reception intensity measured by the reception intensity measurement unit lower than a predetermined level. Is to expand the illuminance measurement area of the illuminance sensor part, and by adjusting the measurement performance of the illuminance measurement means by expanding the illuminance measurement area, the measurement performance of the illuminance measurement means and the remote control function using the transmitter And can be organically combined to perform appropriate lighting control.

The invention of claim 6 is the invention of claim 1 or 2 or 3.
In the invention of 4 or 4, when the illumination fixture is provided with an illuminance sensor section for measuring the illuminance in the illuminance measurement area as the situation detecting means, and the adjusting means has a reception intensity measured by the reception intensity measuring means higher than a predetermined level. Is to reduce the illuminance measurement area of the illuminance sensor part, and by adjusting the measurement performance of the illuminance measurement means by reducing the illuminance measurement area, the measurement performance of the illuminance measurement means and a remote control function using a transmitter And can be organically combined to perform appropriate lighting control.

The invention of claim 7 is the invention of claim 1 or 2 or 3.
Alternatively, in the invention of 4), an illuminance sensor section as a situation detecting means for measuring the illuminance in the illuminance measurement area, and a dimming for controlling an output level of a lighting load according to the illuminance level measured by the illuminance sensor section. The lighting fixture is provided with a light control unit and a variable unit that changes a correspondence relationship between the illuminance level measured by the illuminance sensor unit and the output level of the illumination load according to the reception intensity measured by the reception intensity measuring unit. Therefore, the output level of the lighting load can be controlled to perform appropriate lighting control so that the place where a person is actually has an optimum illuminance.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) FIG. 1 is a block diagram showing a first embodiment of the present invention, in which a human body sensor unit 1 for detecting the presence or absence of a person in a human body detection area and an illuminance level in an illuminance measurement area are measured. Illuminance sensor unit 2, sensitivity control unit 3 for adjusting the sensitivity of human body sensor unit 1 and illuminance sensor unit 2, detection as an adjusting means for adjusting the human body detection area of human body sensor unit 1 and the illuminance measurement area of illuminance sensor unit 2. The range control unit 4,
A lighting load unit 5 including a lighting load such as a fluorescent lamp, a lighting load control unit 6 that controls operations such as lighting, turning off, and dimming of the lighting load unit 5, and wireless control transmitted from a transmitter B. A receiving unit 7 that receives a signal, a receiving intensity measuring unit 8 that measures the receiving intensity of the wireless control signal received by the receiving unit 7, and a setting unit 9 that performs various settings described below.
And a fixture control unit 10 including a CPU and the like for controlling the whole of the lighting fixture A, a manipulation unit 11 including manipulation switches, and a transmission unit 12 for transmitting a wireless control signal by infrared rays, for example. , A transmitter control unit 1 for performing control such as transmitting a control signal according to an operation of the operation unit 11 as a wireless signal via the transmission unit 12.
3 and 3 in the transmitter B.

Although not shown, the human body sensor unit 1 includes a pyroelectric element for detecting infrared rays emitted from the human body, an amplifier for amplifying the output of the pyroelectric element, and a pyroelectric element amplified by the amplifier. It is equipped with a comparator that compares the detection output with a specified threshold level and outputs a detection signal when the detection output exceeds the threshold level. Is output. Further, the illuminance sensor unit 2 includes a photoelectric conversion element such as CdS to measure the illuminance level in the illuminance measurement area, but each element for human body detection and illuminance measurement is not limited to these. .

The sensitivity control unit 3 controls the sensitivity by adjusting the threshold level compared with the detection output of the pyroelectric element by the comparator of the human body sensor unit 1 based on the command from the instrument control unit 10. Yes, for example, if the threshold level is raised, the human body sensor unit 1
It is possible to relatively increase the sensitivity by lowering the sensitivity and lowering the threshold level. The level to which the threshold level is set may be determined by the appliance control unit 10 based on the set value provided from the setting unit 9, for example.

The basic operation of this embodiment is as follows. First, when the human body sensor unit 1 detects the presence of a person in the human body detection area, the appliance control unit 10 controls the lighting load unit 5 via the lighting load control unit 6 to turn on the lighting load unit 5. On the other hand, the appliance control unit 10 outputs the illumination load unit 5 via the illumination load control unit 6 so that the illuminance in the illuminance measurement area measured by the illuminance sensor unit 2 reaches the preset optimal illuminance level. Dimming control is performed by changing the level. When the operation unit 13 of the transmitter B is operated and the wireless control signal corresponding to the operation is transmitted,
The receiving unit 7 of the lighting fixture A receives the above control signal, and the fixture control unit 10 controls the lighting load unit 5 to be turned on, off, or dimmed via the lighting load control unit 6 based on the received control signal. To do.

By the way, the pyroelectric element used in the human body sensor unit 1 of the present embodiment is currently widely used because it is suitable for commercial bases in terms of technology and cost. Is basically higher for shorter distances and lower for farther distances. That is, the detection sensitivity in the human body detection area varies depending on the distance from the human body sensor unit 1, and the detection sensitivity decreases as the distance from the center of the human body detection area to the peripheral portion increases, that is, as the distance increases. However, if the detection sensitivity of the peripheral portion of the human body detection area having the lowest detection sensitivity is increased, the detection sensitivity of the central portion of the human body detection area closest to the human body sensor unit 1 becomes too high, so that a slight thermal, There is a high possibility that the human body sensor unit 1 will malfunction due to electrical noise or the like. Therefore, in actuality, the detection sensitivity of the central portion of the human body detection area is set to an appropriate level so that the above-described malfunction does not occur at the location where the detection sensitivity is highest (the central portion of the human body detection area). For this reason, in many cases, the detection sensitivity of the place where the detection sensitivity is the lowest (the peripheral portion of the human body detection area) is slightly lower than the required level.

For example, as shown in FIG. 2, the human body detection area X ₀ of the human body sensor unit 1 provided on the lower surface of the ceiling-mounted luminaire A is located at a point immediately below the human body sensor unit 1 (from the human body sensor unit 1). The distance Da) is substantially centered and spreads around the center. Now, in order to simplify the explanation, the human body detection area X
₀ is three areas according to the distance from the human body sensor unit 1,
That is, it is divided into a central portion X ₁ , a middle portion X ₂ , and a peripheral portion X ₃ ,
The standard detection sensitivity of each part X _{1 to} X ₃ is 100d.
B, 75 dB, and 50 dB. The center X
The detection sensitivity of ₁ is 100 dB, which is a proper level at which the above-mentioned malfunction does not occur. At this time, the detection sensitivity (= 50 dB) of the peripheral portion X ₃ cannot be said to be sufficient for proper human body detection, and even if a slight motion of the person that can be reliably detected in the central portion X ₁ , this peripheral portion X ₃ May not be detected.

Therefore, in the present embodiment, the reception intensity of the wireless control signal received by the reception unit 7 of the luminaire A is measured by the reception intensity measurement unit 8 and the transmitter B is transmitted based on the measured reception intensity. The distance is determined, and the sensitivity control unit 3 adjusts the detection sensitivity of the human body sensor unit 1 so that the detection sensitivity of the location of the transmitter B in the human body detection area X ₀ becomes an appropriate level (≈100 dB). ing. For example,
Point b in FIG. 2 (distance Db from the human body sensor unit 1)
When a person operates the transmitter B to transmit a wireless control signal (for example, a control signal for turning on the lighting load unit 5) to the luminaire A, the luminaire A receives the control signal at the receiver 7. At the same time, the reception intensity measuring unit 8 measures the reception intensity, and the appliance control unit 1 determines which level the measured reception intensity corresponds to.
Judge with 0. As a result, if the appliance control unit 10 determines that the distance to the transmitter B is considerable (the person is at the point of the distance Db) because the level of the reception intensity is low, the human body sensor unit 1 via the sensitivity control unit 3 is detected. The detection sensitivity is relatively increased by lowering the threshold level of the comparator (not shown), and the detection sensitivity in the peripheral portion X ₃ is controlled from the normal level of 50 dB to a proper level of 100 dB.

Further, when a person operates the transmitter B to transmit a wireless control signal to the luminaire A at a point c (distance Dc from the human body sensor unit 1) in FIG. 2, the illumination is performed as described above. The reception intensity measurement unit 8 of the instrument A measures the reception intensity, the instrument control unit 10 determines the distance to the transmitter B, and the detection sensitivity in the intermediate portion X ₂ including the point c is appropriate from 75 dB in the normal state. The human body sensor unit 1 is controlled via the sensitivity control unit 3 so that the level becomes 100 dB. When the human body detection area X ₀ is no longer occupied after the detection sensitivity is adjusted as described above, that is, when the human body sensor unit 1 no longer detects a person, the detection sensitivity is set to the normal level. Alternatively, the instrument control unit 10 may control the human body sensor unit 1 via the sensitivity control unit 3 so as to return it.

As described above, according to the present embodiment, by adjusting the detection sensitivity of the place where the transmitter B is, that is, the place where the person is, to the appropriate level, the peripheral portion X ₃ and the intermediate portion X ₂ are detected.
Even if there is a person in the room, that person can be detected sufficiently,
The detection sensitivity, which is the detection performance of the human body sensor unit 1, and the remote control function using the transmitter B are organically linked to each other to perform appropriate illumination control. However, if the detection sensitivity of the peripheral part X ₃ is optimized (raised to 100 dB) when the transmitter B is operated at the point b, the detection sensitivities of the other middle part X ₂ and the central part X ₁ are 125 dB and respectively. 150
There is a possibility that the level will rise too much like dB and cause a malfunction due to noise or the like, but since a person is originally in the peripheral portion X ₃ , there is no problem in practice even if such a malfunction occurs. .

In this embodiment, in order to change the detection sensitivity of the human body sensor unit 1 by the sensitivity control unit 3, the threshold level of the comparator (not shown) of the human body sensor unit 1 is changed. Besides, it goes without saying that it can be realized by various methods such as changing the amplification factor of an amplifier (not shown) included in the human body sensor unit 1.
Further, the relationship between the distance to the transmitter B and the adjustment amount of the detection sensitivity is not limited to the example of the present embodiment. For example, the entire human body detection area X ₀ is concentric as in FIG. 2 as described below. It is possible to adopt various adjustment patterns such as dividing the above into about five and adjusting in the range of +25 dB to -25 dB according to the reception intensity of the received wireless control signal.

Receiving strength Sensitivity adjustment amount Strongest (distance to transmitter B: shortest) −25 dB strong (same distance: short) −12 dB intermediate (same distance: intermediate) ± 0 dB weak (same distance: long) +12 dB weakest ( Same distance: longest) +25 dB (Embodiment 2) In the above-described Embodiment 1, the detection sensitivity of the detection performance of the human body sensor unit 1 is adjusted according to the reception intensity of the wireless control signal from the transmitter B. However, in this embodiment, instead of the detection sensitivity, the detection range (human body detection area X ₀ ) which is another detection performance is expanded or reduced. Since the configurations of the lighting fixture A and the transmitter B are the same as those in the first embodiment, the description and illustration of each part will be omitted.

In the present embodiment, the reception intensity measuring unit 8
The appliance control unit 10 adjusts the human body detection area X ₀ of the human body sensor unit 1 via the detection range control unit 4 on the basis of the measurement result of the reception intensity by, but specifically, for example, the human body sensor unit 1 It is performed by adjusting an optical system including a lens for condensing infrared rays emitted from a human body to the pyroelectric element that is provided. That is, the human body detection area X ₀ can be enlarged or reduced by changing the viewing angle of the lens of the optical system.

Here, with respect to the human body detection area X ₀ (see FIG. 3A) of the human body sensor unit 1 at the normal time, FIG.
As shown in (b), when the transmitter B is operated at a point b that is outside (outside) the human body detection area X _{0 in} the normal state, and a control signal for lighting the lighting fixture A is transmitted. In the luminaire A, the reception intensity measuring unit 8 measures the reception intensity, and the fixture control unit 10 determines which of a plurality of preset threshold levels the reception intensity of the measurement result corresponds to. The distance to the transmitter B is determined by the above-described determination, and the detection range control unit 4 uses the optical system (not shown) of the human body sensor unit 1 based on the relationship between the preset reception intensity and the adjustment amount of the human body detection area. The human body detection area X ₀ is expanded by, for example, widening the viewing angle of the
_The lighting load is controlled according to the human body detection within ₀ '. If no person is present in the enlarged human body detection area X ₀ ′ and the human body sensor unit 1 no longer detects the human body, the detection range control unit 4 reduces the area to return to the normal human body detection area X ₀ . It is also possible to perform various controls such as further expanding the area from the expanded human body detection area X ₀ ′.

In the normal state, the human body detection area X₀The ratio
Set relatively narrow and detect movements of unrelated people
Keep it off and control wireless from transmitter B
Human detection as above only when instructed by a signal
People who are outside the normal human body detection area by expanding the area
The motion of may be detected. On the contrary, for example
As shown in FIG. 4, a point (human body sensor) immediately below the luminaire A is
Wireless from transmitter B from distance Da)
The location where the person is closest to the lighting fixture A when the control signal of
If it is recognized that you are in (directly under the lighting fixture A), the person
Body detection area X ₀Can be left as normal
Or intentionally human detection area X ₀If you narrow
It has a high so-called fine movement detection performance that can detect even a slight movement of a person.
It is also possible.

Alternatively, as shown in FIG. 5, the lighting device A may determine the direction in which the wireless control signal is transmitted, and perform control such that the human body detection area X ₀ is concentrated in that direction. As described above, according to the present embodiment, the human body detection area, which is the detection performance of the human body sensor unit 1, is expanded or reduced according to the reception intensity of the wireless control signal received by the lighting fixture A. And the remote control function using the transmitter B can be organically combined to perform appropriate lighting control. (Third Embodiment) In the first and second embodiments, the transmitter B is used.
The detection performance of the human body sensor unit 1 is adjusted according to the reception strength of the wireless control signal from the human body sensor unit 1. However, in the present embodiment, the measurement performance of the illuminance sensor unit 2 is replaced with the detection performance of the human body sensor unit 1. Is specifically characterized in that the measurement range of the illuminance sensor unit 2 (illuminance measurement area Y ₀ ) is enlarged or reduced. In addition, the lighting fixture A and the transmitter B
Since the configuration of is similar to that of the first embodiment, description and illustration of each part will be omitted.

In the present embodiment, the reception intensity measuring section 8
Based on the measurement result of the reception intensity by
The illuminance measurement of the illuminance sensor unit 2 is performed via the detection range control unit 4.
Rear Y₀Is adjusted.
The ambient light is collected on the photoelectric conversion element of the degree sensor unit 2.
It is done by adjusting the optical system including the lens for
You. In other words, it is necessary to change the viewing angle of the lens of the above optical system.
Illuminance measurement area Y ₀Can be expanded or reduced.

Here, with respect to the illuminance measurement area Y ₀ (see FIG. 6A) of the illuminance sensor section 2 at the normal time, FIG.
As shown in (b), when the transmitter B is operated at a point b which is outside (outside) the illuminance measurement area Y ₀ at the normal time, and a control signal for lighting the lighting fixture A is transmitted. In the luminaire A, the reception intensity measuring unit 8 measures the reception intensity, and the fixture control unit 10 determines which of a plurality of preset threshold levels the reception intensity of the measurement result corresponds to. The distance to the transmitter B is determined by the above-described determination, and the detection range control unit 4 uses the optical system (not shown) of the illuminance sensor unit 2 based on the relationship between the preset reception intensity and the adjustment amount of the illuminance measurement area. The illuminance measurement area Y ₀ is expanded by expanding the viewing angle of the transmitter, and the illuminance measurement area Y is expanded including the point b where the transmitter B is located.
_The lighting load unit 5 is controlled according to the illuminance measured within ₀ '. If no person is present in the expanded illuminance measurement area Y ₀ ′ and the human body sensor unit 1 no longer detects the human body, the detection range control unit 4 reduces the illuminance measurement area Y ₀ ′ to perform normal illuminance measurement. It is also possible to perform various controls such as returning to the area Y ₀ or further expanding the area from the expanded illuminance measurement area Y ₀ ′.

Further, as shown in FIG. 7, a wireless control signal is transmitted from the transmitter B from point a (distance Da from the illuminance sensor section 2) immediately below the luminaire A, and the luminaire A is transmitted.
When it is recognized that the person is in the closest place (directly under the lighting fixture A), the illuminance measuring area Y ₀ is reduced so that the illuminance only near the place where the person is (point a) is measured. By doing so, for example, it is possible to perform appropriate illuminance measurement more suitable for controlling the lighting load while eliminating the influence of sunlight incident from the window or other lighting fixtures as much as possible.

Alternatively, as shown in FIG. 8, the direction in which the wireless control signal is transmitted may be determined by the luminaire A, and the illuminance measurement area Y ₀ may be concentrated in that direction. As described above, according to the present embodiment, the illuminance at the place where a person is can be accurately measured by enlarging or reducing the illuminance measurement area according to the reception intensity of the wireless control signal received by the lighting fixture A. The size of the illuminance measurement area, which is the detection performance of the illuminance sensor unit 2, and the remote control function using the transmitter B can be organically linked to perform appropriate illumination control.

(Embodiment 4) In the above-described Embodiment 3, the illuminance measurement area is adjusted in the measurement performance of the illuminance sensor unit 2 according to the reception intensity of the wireless control signal from the transmitter B. However, the present embodiment is characterized in that the measurement sensitivity, which is another measurement performance, is adjusted instead of the illuminance measurement area. Since the configurations of the lighting fixture A and the transmitter B are the same as those in the first embodiment, the description and illustration of each part will be omitted.

Although not shown in the figure, the illuminance sensor section 2 uses a photoelectric conversion element such as CdS, an amplifier for amplifying the output of the photoelectric conversion element, and an output of the photoelectric conversion element amplified by the amplifier to a predetermined threshold. It is equipped with a comparator that outputs a signal when its output exceeds the threshold level as compared with the hold level, and outputs a signal according to the illuminance in the illuminance measurement area.

The sensitivity control section 3 adjusts the sensitivity of the illuminance sensor section 2 by adjusting the threshold level compared with the output of the photoelectric conversion element by the comparator of the illuminance sensor section 2 based on the command from the appliance control section 10. For example, if the threshold level is raised, the sensitivity of the illuminance sensor unit 2 can be relatively lowered, and conversely, if the threshold level is lowered, the sensitivity can be relatively raised. The level to which the threshold level is set may be determined by the appliance control unit 10 based on the set value provided from the setting unit 9, for example.

By the way, as shown in FIG. 9, since the luminaire A in this embodiment is a ceiling-mounted type, the illuminance distribution on the floor surface is such that the illuminance level becomes closer to the peripheral part with the area directly below the luminaire A as the center. The distribution will decrease. The illuminance sensor unit 2 included in the luminaire A generally measures the illuminance level in a predetermined fixed range (illuminance measurement area Y ₀ ) directly below the luminaire A, and the central illuminator Set the illuminance level directly below the fixture A to the optimum illuminance (for example, 600Lx) that suits the purpose, or slightly raise the illuminance level immediately below to raise the appropriate illuminance level (for example, 600Lx) in a wide range. Therefore, the threshold level of a comparator (not shown) included in the illuminance sensor unit 2 is determined. That is, the appliance control unit 10 controls the output of the lighting load unit 5 via the lighting load control unit 6 so that the illuminance level measured by the illuminance sensor unit 2 substantially matches the threshold level.

For example, as shown in FIG. 9, the illuminance measurement area Y ₀ of the illuminance sensor unit 2 provided on the lower surface of the ceiling-mounted luminaire A is located at a point (directly from the illuminance sensor unit 2) immediately below the illuminance sensor unit 2. The distance Da) is approximately the center and spreads around it. Now, in order to simplify the explanation, the illuminance measurement area Y
₀ is three areas according to the distance from the illuminance sensor unit 2,
That is, it is divided into a central portion Y ₁ , an intermediate portion Y ₂ , and a peripheral portion Y ₃ ,
Standard floor illuminance of each part Y _{1 to} Y ₃ 750Lx, 600L
x, 450 Lx, and the threshold level in the comparator of the illuminance sensor unit 2 at this time is set to 750 Lx. Here, if neither the illuminance measurement area Y ₀ of the illuminance sensor unit 2 nor the threshold level of the illuminance level is changed, the illuminance level immediately below the luminaire A measured by the illuminance sensor unit 2 regardless of where the person is. Since the output control of the lighting load unit 5 is performed according to
For a person who is not directly under the luminaire A, the dimming control is very uncomfortable in actual use.

Therefore, in the present embodiment, the reception intensity of the wireless control signal received by the reception unit 7 of the luminaire A is measured by the reception intensity measurement unit 8 and the transmitter B is transmitted based on the measured reception intensity. The threshold level in the comparator of the illuminance sensor unit 2 is increased in order to determine the distance and perform control so that the place where the transmitter B is located has an optimum illuminance level. For example, a person operates the transmitter B at a point b (distance Db from the illuminance sensor unit 2) in FIG. 9 to send a wireless control signal (for example, a control signal for lighting the lighting load unit 5) to the lighting fixture A. When it is transmitted, in the lighting fixture A, the control signal is received by the receiving unit 7, the reception intensity is measured by the reception intensity measuring unit 8, and further, the level to which the measured reception intensity corresponds is set in advance. The control unit 10 makes a determination. As a result, if the appliance control unit 10 determines that the distance to the transmitter B is considerable (the person is at the point of the distance Db) because the level of the reception intensity is low, the illuminance sensor unit 2 via the sensitivity control unit 3 Raises the threshold level of a comparator not shown in the figure (750Lx → 850Lx to lower the measurement sensitivity relatively, and the illuminance level in the peripheral portion X ₃ is the optimum illuminance level (for example, 600Lx).
Is controlled so that

Further, at a point a (distance Da from the illuminance sensor unit 2) and a point c (distance Dc from the illuminance sensor unit 2) in FIG. 9, a person operates the transmitter B to send a wireless control signal to the lighting fixture. Also when transmitting to A, the reception intensity measuring unit 8 of the lighting fixture A measures the reception intensity in the same manner as described above, and the fixture control unit 10 determines the distance to the transmitter B, and the points a and c. The sensitivity sensor unit 2 is controlled via the sensitivity control unit 3 so that the illuminance level in 1 is the optimum illuminance level, and the threshold level of the illuminance sensor unit 2 is adjusted. When the human body detection area X ₀ is no longer present after the measurement sensitivity is adjusted as described above, that is, when the human body sensor unit 1 no longer detects the person, the measurement sensitivity of the illuminance sensor unit 2 is The illuminance sensor section 2 may be controlled by the instrument control section 10 via the sensitivity control section 3 so as to return to the normal level (the threshold level is set to 750 Lx).

As described above, according to the present embodiment, the instrument controller 10 and the sensitivity controller 3 constitute a variable means,
By changing the threshold level of the illuminance sensor unit 2 according to the reception intensity of the control signal, the correspondence relationship between the illuminance level measured by the illuminance sensor unit 2 and the output level of the lighting load unit 5 is changed, and the transmission is performed. It is possible to adjust the illuminance of the place where the machine B is, that is, the place where a person is, to an appropriate level, and organically adjust the measurement sensitivity of the illuminance sensor unit 2 and the remote control function using the transmitter B. It is possible to combine them to perform appropriate lighting control.

In this embodiment, the threshold level of the comparator (not shown) of the illuminance sensor section 2 is changed in order to change the measurement sensitivity of the illuminance sensor section 2 by the sensitivity control section 3. Besides, it goes without saying that it can be realized by various methods such as changing the amplification factor of an amplifier (not shown) included in the illuminance sensor unit 2.
Further, the relationship between the distance to the transmitter B (reception intensity) and the adjustment amount of the measurement sensitivity is not limited to this embodiment. For example, the illuminance measurement area Y ₀ is concentric as in FIG. 9 as described below. Divide into about 5 above, and from + 150Lx to -150L according to the reception strength of the received wireless control signal.
Various adjustment patterns such as adjustment within the range of x can be adopted.

Received strength Sensitivity adjustment amount Strongest (distance to transmitter B: shortest) -150Lx strong (same distance: short) -75Lx intermediate (same distance: intermediate) ± 0Lx weak (same distance: long) + 75Lx weakest ( Same distance: longest) + 150Lx By the way, it goes without saying that Embodiments 1 to 4 described above can be implemented in combination with each other, and the detection performance of the human body sensor unit 1 and the measurement performance of the illuminance sensor unit 2 are adjusted at the same time. Good.

[0045]

According to the first aspect of the present invention, a transmitter for wirelessly transmitting a control signal for controlling a lighting load, and a lighting device having a lighting load and receiving a wireless control signal transmitted from the transmitter for lighting. A lighting device including a lighting device for controlling a load, comprising: a situation detecting means for detecting a surrounding situation; and a reception intensity measuring means for measuring a reception intensity of a wireless control signal transmitted from a transmitter. Since the lighting fixture is provided with the adjusting means for adjusting the detection performance of the situation detecting means in accordance with the reception intensity measured by the reception intensity measuring means,
These detection performance and transmitter were used by adjusting the detection performance of the situation detection means according to the reception strength of the wireless control signal, that is, the information about the position of the transmitter such as the distance to the transmitter and its direction. There is an effect that an appropriate lighting control can be performed by organically connecting with a remote control function.

According to a second aspect of the present invention, the lighting fixture is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means receives the reception intensity measured by the reception intensity measuring means. If the received signal strength is lower than a predetermined level, the detection sensitivity of the human body detection unit is lowered, and if the reception intensity is lower than the predetermined level, the detection sensitivity of the human body detection unit is increased. There is an effect that the performance can be adjusted and the detection performance of the human body detection means and the remote control function using the transmitter can be organically combined to perform appropriate lighting control.

According to a third aspect of the present invention, the lighting fixture is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means receives the reception intensity measured by the reception intensity measuring means. If the value is lower than a predetermined level, the human body detection area of the human body sensor unit is expanded.Therefore, by expanding the human body detection area, the detection performance of the human body detection unit is adjusted, and the detection performance of the human body detection unit and the transmitter There is an effect that the remote control function used can be organically linked to perform appropriate lighting control.

According to a fourth aspect of the present invention, the lighting equipment is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means receives the reception intensity measured by the reception intensity measuring means. If is higher than a predetermined level, the human body detection area of the human body sensor unit is reduced.Therefore, by reducing the human body detection area, the detection performance of the human body detection unit is adjusted, and the detection performance of the human body detection unit and the transmitter are adjusted. There is an effect that the remote control function used can be organically linked to perform appropriate lighting control. According to the invention of claim 5, the illuminating device is provided with an illuminance sensor section for measuring the illuminance in the illuminance measuring area as the situation detecting means, and the adjusting means has the reception intensity measured by the reception intensity measuring means lower than a predetermined level. In this case, since the illuminance measurement area of the illuminance sensor unit is expanded, the measurement performance of the illuminance measurement means is adjusted by expanding the illuminance measurement area, and the measurement performance of the illuminance measurement means and the remote control function using the transmitter are There is an effect that it is possible to perform appropriate lighting control by organically connecting the lights.

According to a sixth aspect of the present invention, the illuminating device is provided with an illuminance sensor section for measuring the illuminance in the illuminance measuring area as the situation detecting means, and the adjusting means has the reception intensity measured by the reception intensity measuring means at a predetermined level. If it is higher than the above, the illuminance measurement area of the illuminance sensor is reduced, so the measurement performance of the illuminance measurement means is adjusted by reducing the illuminance measurement area, and the measurement performance of the illuminance measurement means and the There is an effect that an appropriate lighting control can be performed by organically connecting with a control function.

The invention according to claim 7 controls the output level of the illumination load according to the illuminance sensor section as a situation detecting means for measuring the illuminance in the illuminance measurement area and the illuminance level measured by the illuminance sensor section. Dimming control means for dimming,
Since the luminaire is provided with the variable means for varying the correspondence relationship between the illuminance level measured by the illuminance sensor unit and the output level of the illumination load according to the reception intensity measured by the reception intensity measuring means, the luminaire is actually provided. There is an effect that the output level of the lighting load can be controlled to perform appropriate lighting control so that the place where a person is present has an optimum illuminance.

[Brief description of drawings]

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

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

3A and 3B are explanatory diagrams for explaining the operation of the second embodiment.

FIG. 4 is an explanatory diagram for explaining the operation of the above.

FIG. 5 is an explanatory diagram for explaining an operation of the above.

6A and 6B are explanatory diagrams for explaining the operation of the third embodiment.

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

FIG. 8 is an explanatory diagram for explaining the operation of the above.

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

FIG. 10 is a block diagram showing a conventional example.

FIG. 11 is a block diagram showing another conventional example.

[Explanation of symbols]

 A lighting fixture B transmitter 1 human body sensor unit 2 illuminance sensor unit 3 sensitivity control unit 4 detection range control unit 5 lighting load unit 6 lighting load control unit 7 reception unit 8 reception intensity measurement unit 9 setting unit 10 fixture control unit 11 operation unit 12 transmitter 13 transmitter controller

Claims (7)

[Claims] 1. A transmitter that wirelessly transmits a control signal for controlling a lighting load, and a lighting device that includes a lighting load and receives a wireless control signal transmitted from the transmitter to control the lighting load. A lighting device including a fixture, comprising a situation detection means for detecting a surrounding situation, a reception intensity measurement means for measuring reception intensity of a wireless control signal transmitted from a transmitter, and a reception intensity measurement means. An illuminating device comprising: an adjusting device for adjusting the detection performance of a situation detecting device according to the measured reception intensity. 2. The lighting device is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means has a reception intensity measured by the reception intensity measuring means higher than a predetermined level. 2. The illumination device according to claim 1, wherein the detection sensitivity of the human body sensor unit is lowered when it is high, and the detection sensitivity of the human body detection unit is increased when the reception intensity is lower than a predetermined level. 3. The lighting device is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means has a reception intensity measured by the reception intensity measuring means higher than a predetermined level. The lighting device according to claim 1, wherein a human body detection area of the human body sensor unit is enlarged when the height is low. 4. The lighting device is provided with a human body sensor section for detecting the presence or absence of a person in the human body detection area as the situation detecting means, and the adjusting means has a reception intensity measured by the reception intensity measuring means higher than a predetermined level. The lighting device according to claim 1, wherein the human body detection area of the human body sensor unit is reduced when the height is high. 5. A lighting fixture is provided with an illuminance sensor section for measuring illuminance in an illuminance measurement area as status detection means,
The adjusting means enlarges the illuminance measurement area of the illuminance sensor section when the reception intensity measured by the reception intensity measuring means is lower than a predetermined level. Lighting equipment. 6. An illumination fixture is provided with an illuminance sensor section for measuring illuminance in an illuminance measurement area as status detection means,
The adjusting means reduces the illuminance measurement area of the illuminance sensor section when the reception intensity measured by the reception intensity measuring means is higher than a predetermined level. Lighting equipment. 7. An illuminance sensor section as a situation detecting means for measuring illuminance in an illuminance measuring area, and a dimming for controlling an output level of a lighting load according to an illuminance level measured by the illuminance sensor section. The lighting device is provided with a control means and a varying means for varying the correspondence between the illuminance level measured by the illuminance sensor section and the output level of the illumination load according to the reception intensity measured by the reception intensity measuring means. The lighting device according to claim 1, 2 or 3 or 4.