JP2010097897A - Illumination control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination control device capable of restraining useless electric power by controlling illumination output of each illumination device in response to existence or nonexistence of a human. <P>SOLUTION: In the illumination control device 10 where an external light-dimming signal input section 17 for inputting an external light-dimming signal is arranged on a control means 14, the control means 14 retains certain high-output lighting established at the time of detecting the human on the basis of human detection information when the external light-dimming signal input section 17 detects existence of the external light-dimming signal and the external light-dimming signal does not exist. The established high-output lighting state is transferred to an established certain low-output lighting state or a lights-out state after progressing a fixed period from a human non-detecting state. When the external light-dimming signal exists, a light-dimming lighting means is controlled on the basis the light-dimming signal inputted at the time of detecting the human, the external light-dimming signal input section 17 is disregarded at the time of detecting the human, and the high-output lighting state is transferred to certain low-output lighting state or the lights-out state established after progressing the fixed period from the non-detecting state. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an illumination control device that includes a lamp and a human detection sensor, and performs dimming and lighting of the lamp based on human detection information.

  As an example of a lighting control device, the present inventor, when an external signal of a certain level is input, ignores the signals from the brightness detection means and the human body detection means and outputs the light output of the light source so as to correspond to the external signal. An illumination control device to be controlled has already been proposed (see, for example, Patent Document 1).

As another example of the illumination control device, the inventor has already proposed an illumination control device that changes the duty ratio of the dimming signal to be output in accordance with the presence or absence of an external dimming signal input (for example, Patent Document 2).
Japanese Patent Laid-Open No. 10-302969 (FIG. 1, claim 1) JP 2002-134283 A (FIG. 1, claim 1)

  However, both Patent Document 1 and Patent Document 2 described above forcibly control the output of the lighting fixture by a dimming signal from an external control device, regardless of whether there is a person directly under or around the lighting fixture. As a result, power was wasted.

  The present invention has been made to satisfy the above-described demands, and the purpose of the present invention is to reduce wasteful power by controlling the output of lighting according to the presence of a person and the absence of a person. An object of the present invention is to provide a lighting control device that can be suppressed.

  The illumination control device according to the present invention controls the dimming / lighting means based on a lamp, dimming / lighting means for dimming / lighting the lamp, a human detection sensor, and human detection information from the human detection sensor. And an external dimming signal input unit for inputting an external dimming signal to the control unit, wherein the control unit is configured to input the external dimming signal. The unit detects the presence or absence of an external dimming signal, and when there is no external dimming signal, based on the human detection information, maintains a certain high output lighting set at the time of human detection, and enters a human non-detection state After a certain period of time has elapsed, the device shifts to a set low output lighting state or extinguishing state, and when there is the external dimming signal, the human detection is based on the input dimming signal. Control the dimming lighting means, non-human detection To the external dimming signal input section is ignored, and is set after a certain time become human non-detection state, characterized in that it proceeds in a low output lighting state or off state.

In the present invention, the control means maintains a certain high output lighting set at the time of human detection based on the human detection information when there is no external dimming signal, and has been in a certain period of time after being in a human non-detection state. After elapses, it shifts to the set low output lighting state or extinguishing state, and when there is an external dimming signal, the dimming lighting means is controlled based on the input dimming signal when a person is detected However, when the person is not detected, the external dimming signal input unit is ignored, and control is performed to shift to a certain low output lighting state or extinguishing state that is set after a certain period of time has passed since the person has not been detected.
Therefore, an energy saving effect can be obtained by easily linking the human detection sensor and the dimming signal from the outside.

  In the illumination control device according to the present invention, the lighting fixture detects reflected light from the irradiated surface with a brightness sensor, and the control means is configured to make the set brightness target value constant. A dimming signal is given to an external dimming signal input unit, the brightness of the lamp is increased or decreased, and feedback control is performed so that the brightness becomes constant. It becomes effective, and when the person is not detected, the dimming signal is ignored and the person is not detected, and after a predetermined time elapses, it shifts to a set low output lighting state.

In the present invention, the luminaire detects the reflected light from the irradiated surface with a brightness sensor, and the control means supplies the external dimming signal input unit so as to be constant at the set brightness target value. In contrast, a dimming signal is given, the brightness of the lamp is increased or decreased, and feedback control is performed so that the brightness becomes constant.The control means enables the dimming signal when a person is detected, and when no person is detected. The dimming signal is ignored and the person is not detected, and after a predetermined time has passed, the state shifts to a set low output lighting state.
Therefore, it is possible to comprehensively control the lighting fixture that is always controlled only by the brightness sensor and the lighting fixture that is appropriately controlled according to the presence / absence of the person, regardless of human detection.
Therefore, it is possible to easily link the presence / absence of a person with the brightness sensor, and to earn an energy saving rate at a lower cost.

  In the illumination control device according to the present invention, the control means has an initial illuminance correction curve of the lamp, and the external dimming signal input unit controls the luminous flux of the lamp to be constant according to the decrease of the luminous flux of the lamp. When the person is detected, the light control signal is valid.When the person is not detected, the light control signal is ignored and the person is not detected. It shifts to a certain low output lighting state, It is characterized by the above-mentioned.

In the present invention, it is possible to save energy by correcting the initial illuminance and to control the lighting fixtures individually using the human detection sensor.
Therefore, finer control is possible according to the presence / absence of a person, thereby obtaining a more energy saving effect.

  In the illumination control device according to the present invention, the control means provides a dimming signal having a desired brightness to the external dimming signal input unit according to a time timer, and the dimming signal is effectively used when detecting a person. Thus, when the person is not detected, the dimming signal is ignored, the person is not detected, and after a predetermined time elapses, the state is shifted to a certain low output lighting state.

In the present invention, by performing control such as turning off and dimming when the brightness of the illumination is unnecessary during lunch breaks, etc., energy saving according to the time zone and control by the individual human detection sensor of the lighting fixture can be achieved. It becomes possible.
Therefore, an energy saving effect can be obtained by performing fine control according to the presence / absence of a person.

According to the illumination control device of the present invention, the control unit is provided with the external dimming signal input unit for inputting the dimming signal from the outside, and the control unit detects the presence or absence of the external dimming signal. However, when there is no external dimming signal, based on the human detection information, a certain high output lighting set at the time of human detection is maintained, and after a certain period of time has passed since the human non-detection state has been set, When there is an external dimming signal, it shifts to a certain low output lighting state or off state, and at the time of human detection, the dimming lighting means is controlled based on the input dimming signal, and when no human is detected, The external dimming signal input unit is ignored and enters a non-human detection state, and shifts to a certain low output lighting state or lighting state set after a lapse of a certain time.
Thus, it is possible to provide an illumination control device that can suppress useless power by controlling the output of illumination individually according to the presence or absence of a person in the lighting fixture. .

  Hereinafter, lighting control devices according to a plurality of embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, the illumination control device 10 according to the first embodiment of the present invention includes a lamp 11, a dimming ballast 12 that dimms and lights the lamp 11, a human detection sensor 13, and a control block 14. Are controlled.

  The dimming ballast 12 controls lighting and dimming of the lamp 11 by receiving a dimming signal.

  The human detection sensor 13 is disposed in the vicinity of the lamp 11, and gives a human detection signal / non-human detection signal to the control block 14 in accordance with the presence / absence of a person immediately below the lamp 11.

  The control block 14 includes a control unit 16, an external dimming signal input unit 17, and an external dimming signal output unit 18.

  A dimming signal is input to the external dimming signal input unit 17 from the outside. The light control signal is a duty signal having a relationship between the duty ratio and the light control rate, for example, from 5% (duty ratio) → 100% (light control rate) to 75% (duty ratio) → 25% (light control rate). .

  The presence / absence of the duty signal is determined to be no dimming signal when the duty ratio of the dimming signal is less than 5%, and is determined to be present when the duty ratio of the dimming signal is 5% or more.

  The external dimming signal output unit 18 outputs a dimming signal (duty signal) to the dimming stabilizer 12 based on an external dimming signal input and detection information of the human detection sensor 13.

  Next, the control operation of the control block 14 will be described.

  As shown in FIG. 2, if there is a person directly under the lamp 11 and there is no external dimming signal input, the dimming lighting is performed with the lamp 11 set to a dimming rate of 100% (S100 → S101). → S102).

  If there is a person directly under the lamp 11 and there is an external dimming signal input, the dimming rate is set according to the input external dimming signal and the lamp 11 is dimmed (S100 → S101). → S103).

  When a person no longer exists directly under the lamp 11, the dimming rate is set to 25% and the lamp 11 is dimmed (S100 → S104).

  As shown in FIG. 3, when a person is present directly under the lamp 11 and the dimming signal input from the outside is switched from 75% to 0% at time T1, the dimming rate is set to 100%. The lamp 11 is dimmed.

  At time T2, when there is no more person who is directly under the lamp 11, the lamp 11 is dimmed and set to a dimming rate of 25%.

  At time T3, when there is a person who is no longer directly under the lamp 11, the dimming rate is set to 100% and the lamp 11 is dimmed.

  At time T4, if there is a person directly under the lamp 11 and the dimming signal input from the outside is switched from 0% to 50%, the dimming rate is set to 50% according to the external dimming signal input. Then, the lamp 11 is dimmed.

In the present embodiment, the control block 14 maintains a certain high output lighting set at the time of human detection based on the human detection information when there is no external dimming signal, and is constant after becoming a human non-detection state. After a lapse of time, the device shifts to a set low output lighting state or extinguishing state, and when there is an external dimming signal, the dimming lighting means is turned on based on the input dimming signal when a person is detected. When the person is not detected, the external dimming signal input unit is ignored, and a control is performed to shift to a certain low output lighting state or extinguishing state that is set after a certain period of time when the person is not detected.
Therefore, it is possible to increase the energy saving effect by easily linking the human detection sensor 13 and the dimming signal from the outside.

(Second Embodiment)
Next, the lighting control apparatus of 2nd Embodiment of this invention is demonstrated. In the following embodiments, components that are the same as those in the first embodiment described above or functionally similar components are simplified or omitted by giving the same reference numerals or equivalent symbols in the drawings. To do.

  As shown in FIG. 4, the illumination control device 30 according to the second embodiment of the present invention is equipped with a brightness sensor controller 31.

  For example, 16 lighting fixtures 15A, 15B, 15C, 15D, 15E, 15F, 15G, 15H, 15I, 15J, 15K, 15L, 15M, 15P, and 15Q are arranged on the ceiling surface of an office or the like. Connected and assembled.

  The brightness sensor controller 31 detects the reflected light from the irradiated surface with the brightness sensor, and sends a dimming signal to the external dimming signal input unit 17 so as to be constant at the set brightness target value. , The brightness of the lamp 11 is increased or decreased, and feedback control is performed so that the set brightness is obtained.

  In addition, it feels bright when outside light enters, and further reduces the light output of the illumination. Thereby, in each lighting fixture 15A-Q, when a person is detected, the light control signal from the brightness sensor controller 31 will be taken in, and it controls so that the set illumination intensity (brightness) may become fixed.

  Accordingly, only the lighting fixtures 15C, 15I, 15J, 15M, and 15N that have detected the person can enable the dimming signal from the brightness sensor controller 31. Other lighting fixtures 15A, 15B, 15D, 15E, 15F, 15G, 15H, 15K, 15L, 15P, and 15Q that have not detected a person are lit with low luminance.

  Here, since the lighting fixtures 15G, 15H, 15K, and 15L around the brightness sensor controller 31 are in the human non-detection state, the lighting is fixed at low luminance. For this reason, the dimming signal from the brightness sensor controller 31 is ignored and does not reach the brightness target value, so that the illumination is controlled to be bright and the light output reaches 100%. Will do.

  As shown in FIG. 5, the lighting device 15G, 15H, 15K, 15L around the brightness sensor controller 31 is made effective by enabling the external dimming signal while forcibly detecting a person. It can be controlled to an appropriate set illuminance.

  As shown in FIG. 6, the human detection sensor 13 is provided with a switch 32 so that the sensor can be switched between valid and invalid.

  As shown in FIG. 7, when the human detection sensor 13 is enabled, the control operation is 100% if a person is present directly under the lamp 11 and no dimming signal is input from the outside. The lamp 11 is dimmed with the light rate set (S200 → S201 → S202 → S203).

  When the person detection sensor 13 is enabled and no person is present immediately below the lamp 11, the dimming ratio is set to 25% and the lamp 11 is dimmed (S200 → S201 → S204).

  When the human detection sensor 13 is disabled and a dimming signal is input from the outside, the dimming rate is set according to the external dimming signal input and the lamp 11 is dimmed ( S200 → S202 → S205).

  When the human detection sensor 13 is disabled and no external dimming signal is input, the lamp 11 is dimmed with the dimming rate set to 100% (S200 → S202 → S203).

  In this way, by setting the lighting fixtures 15G, 15H, 15K, and 15L around the brightness sensor controller 31 to be sensor-invalid, the lighting fixtures 15G, 15H, 15K, and 15L around the brightness sensor controller 31 are Regardless of the detection, it is always controlled only by the brightness sensor controller 31.

  The other lighting fixtures 15A, 15B, 15C, 15D, 15E, 15F, 15I, 15J, 15M, 15P, and 15Q are appropriately controlled according to the presence / absence of a person.

  Here, as shown in FIG. 8, when the lighting fixtures 15 </ b> A to 15 </ b> Q equipped only with the human detection sensor 13 are arranged in the same manner as in FIG. 4, the dimming lighting of the lamp 11 is performed only in accordance with the presence / absence of the person. To do so, you can not earn an energy saving rate.

  As shown in FIG. 9, when the human detection sensor 13 and the brightness sensor controller 31 are placed separately from the lighting fixtures 15 </ b> A to 15 </ b> Q, the energy detection rate is higher than that shown in FIG. 8, but the human detection sensor 13. This is difficult to arrange and may cause missing in the human detection range. When any one of the human detection sensors 13 detects a person, all the lighting fixtures 15A to 15Q are turned on, so that they are turned on even in a place where there is no person and the energy saving effect is reduced.

  As shown also in FIG. 10, when all the lighting fixtures 15A-15Q are equipped with the human detection sensor 13 and the brightness sensor controller 31, the human detection sensor 13 and the brightness sensor controller 31 are provided in each lighting fixture 15A-15Q. Providing a significant cost increase.

In the present embodiment, the lighting fixtures 15A to 15Q detect the reflected light from the irradiated surface with the brightness sensor controller 31, and the control block 14 is externally set so as to be constant at the set brightness target value. A dimming signal is given to the dimming signal input unit 17, the brightness of the lamp 11 is increased or decreased, and feedback control is performed so that the brightness becomes constant. The control block 14 receives the dimming signal when detecting a person. When the person is not detected, the dimming signal is ignored and the person is not detected, and after a predetermined time has elapsed, the state shifts to a set low output lighting state.
Therefore, the lighting fixtures 15G, 15H, 15K, and 15L that are always controlled only by the brightness sensor controller 31 regardless of human detection, and the lighting fixtures 15A and 15B that are appropriately controlled according to the presence / absence of a person. , 15C, 15D, 15E, 15F, 15I, 15J, 15M, 15P, and 15Q.
Therefore, it is possible to simply link the presence / absence of a person with the brightness sensor controller 31 to increase the energy saving rate at a lower cost.

(Third embodiment)
Next, a lighting control apparatus according to a third embodiment of the present invention will be described.

  As shown in FIG. 11, the illumination control device 40 according to the third embodiment of the present invention includes an initial illuminance correction controller 41 that stores a data table of an initial illuminance correction curve of the lamp 11 in the control block 14.

  The illumination control device 40 gives a dimming signal to the external dimming signal input unit 17 so as to control the luminous flux of the lamp 11 to be constant according to the decrease of the lamp luminous flux, and the dimming signal becomes effective at the time of human detection. When the person is not detected, the dimming signal is ignored and the person becomes the non-detection state, and after a predetermined time elapses, control is performed to shift to a set low output lighting state.

  The initial illuminance correction controller 41 collectively outputs a dimming signal corresponding to the degree of lamp light beam deterioration due to elapsed time to each of the lighting fixtures 15A to 15Q.

  In each of the lighting fixtures 15A to 15Q, a dimming signal enters each external dimming signal input unit 17, and control is performed according to the presence / absence of a person.

In this embodiment, energy saving by the initial illuminance correction and control by the human detection sensor 13 for each of the lighting fixtures 15A to 15Q are possible.
Therefore, finer control is possible according to the presence / absence of a person, thereby obtaining a more energy saving effect.

(Fourth embodiment)
Next, a lighting control apparatus according to a fourth embodiment of the present invention will be described.

  As shown in FIG. 12, in the illumination control device 50 according to the fourth embodiment of the present invention, the control block 14 is equipped with a time timer controller 51.

  The lighting control device 50 gives a dimming signal having a desired brightness to the external dimming signal input unit 17 according to the time timer controller 51, and the dimming signal becomes effective when a person is detected, and when no person is detected. The dimming signal is ignored, and a control is performed to shift to a certain low output lighting state that is set after a certain period of time has passed since the person has not been detected.

In this embodiment, by performing control such as turning off and dimming when the brightness of illumination is not required, such as during lunch breaks, energy saving according to the time zone, and individual human detection sensors of the lighting fixtures 15A to 15Q 19 can be controlled.
Therefore, an energy saving effect can be obtained by performing fine control according to the presence / absence of a person.

  In addition, the lamp | ramp 11, the dimming ballast 12, etc. which were used in the said embodiment are not limited to the illustrated shape, and can be changed suitably.

The block block diagram of the illumination control apparatus of 1st Embodiment which concerns on this invention. The flowchart explaining the control operation of the illumination control apparatus shown in FIG. Timing chart for explaining the control operation of the illumination control device shown in FIG. Schematic configuration diagram of a lighting control apparatus according to a second embodiment of the present invention. Specific configuration diagram of the illumination control device shown in FIG. Block configuration diagram of the illumination control device shown in FIG. The flowchart explaining the control operation of the illumination control apparatus shown in FIG. Schematic block diagram of a first comparative example of the illumination control device shown in FIG. Schematic block diagram of a second comparative example of the illumination control device shown in FIG. Schematic block diagram of a third comparative example of the illumination control device shown in FIG. Schematic configuration diagram of a lighting control apparatus according to a third embodiment of the present invention. Schematic configuration diagram of a lighting control apparatus according to a fourth embodiment of the present invention.

Explanation of symbols

10, 30, 40, 50 Illumination control device 11 Lamp 12 Dimming ballast (Dimming lighting means)
13 person detection sensors 15, 15A, 15B, 15C, 15D, 15E, 15F, 15G, 15H, 15I, 15J, 15K, 15L, 15M, 15N, 15P, 15Q
16 Control block (control means)
17 External dimming signal input unit 31 Brightness sensor controller (brightness sensor)
41 Initial illumination correction controller 51 Time timer controller

Claims (4)

A lamp,
A dimming lighting means for dimming the lamp;
A human detection sensor;
Control means for controlling the dimming lighting means based on human detection information from the human detection sensor;
In a lighting control device for controlling a lighting fixture comprising:
An external dimming signal input unit for inputting an external dimming signal to the control means is provided,
The control means detects the presence or absence of an external dimming signal by the external dimming signal input unit, and when there is no external dimming signal, the control means is set at the time of human detection based on the human detection information. The output lighting is maintained, and after a certain period of time has passed since the human non-detection state has been set, the system shifts to a set low output lighting state or a light-off state. The dimming lighting means is controlled based on the dimming signal being input, and when the person is not detected, the external dimming signal input unit is ignored and is set to a human non-detecting state after a certain period of time, A lighting control device that shifts to a low output lighting state or a lighting off state.   The lighting fixture detects reflected light from the surface to be irradiated with a brightness sensor, and the control unit is configured to keep the set brightness target value constant with respect to the external dimming signal input unit. Give a dimming signal, increase or decrease the brightness of the lamp, perform feedback control so as to be a constant brightness, the control means, when the person is detected, the dimming signal is valid, when no person is detected, The lighting control device according to claim 1, wherein the dimming signal is ignored to enter a human non-detection state, and after a predetermined time elapses, the lighting control device shifts to a set low output lighting state.   The control means has an initial illuminance correction curve of the lamp, and gives a dimming signal to the external dimming signal input unit so as to control the luminous flux of the lamp constant according to the decrease of the luminous flux of the lamp, When the person is detected, the dimming signal becomes effective, and when the person is not detected, the dimming signal is ignored and the person is not detected, and after a certain period of time has elapsed, a set low output lighting state is entered. The illumination control device according to claim 1.   The control means provides a dimming signal having a desired brightness to the external dimming signal input unit according to a time timer, and the dimming signal is valid when a person is detected, and the dimming signal is detected when no person is detected. 2. The lighting control device according to claim 1, wherein the light signal is ignored and the state shifts to a set low output lighting state after a certain period of time has passed since the person has not been detected.

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