JPH1032090A - Lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting system whose illumination load is lighted up when any person exists and is put off forcedly. SOLUTION: A remote control transmitter 5 and a remote control receiver 4 can put off an illumination load 3 forcedly. If after the illumination load 3 is put off forcedly, a human body sensor 1 does not sense existence of any person any more and when a certain period of time has passed, restitution to the sensor mode takes place. Therefore, if the sensor 1 senses a person at the next time, the illumination load 3 is lighted up automaticaly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device capable of selecting from a plurality of operation modes for controlling a lighting load.

[0002]

2. Description of the Related Art Conventionally, it is possible to select an operation mode for manually controlling a lighting state such as turning on / off or dimming a lighting load, and an operation mode for automatically controlling based on outputs of a sensor or a timer. Various lighting devices have been proposed. For example, by detecting a heat ray radiated from a human body by a pyroelectric element, the lighting load is turned on while a person is present in a predetermined detection area, and the lighting load is turned on after a certain time from when the person goes out of the detection area. An illumination device using a human body detection sensor for turning off the light has been proposed. This type of lighting device often includes an illuminance sensor, and when the ambient illuminance is equal to or higher than a predetermined level (that is, bright), the illumination load is not turned on even if a person is present in the detection area. The lighting load is turned on / off by the human body detection sensor only when the illuminance is less than a predetermined level (that is, dark). Furthermore, even when a person is present, it may be required to turn off the lighting load for the purpose of using a projector or the like, so an operation unit for forcibly turning off the lighting load is provided. There is something. In this type of lighting device, an operation unit for forcibly turning on a lighting load is also provided.

On the other hand, an office lighting apparatus is provided with an illuminance sensor for detecting ambient illuminance so as to maintain a constant illuminance on a desk surface, which is a work surface, and adjusts the brightness of an illumination load according to the ambient illuminance. There is. In this type of lighting device, the brightness of the lighting load is adjusted based on the illuminance detected by the illuminance sensor during the daytime when the ambient illuminance changes, and the brightness of the lighting load is not adjusted at night when the ambient illuminance changes little. There is also provided an illuminating device that can be used. In this type of lighting device, when the illuminance of the work surface at night is set to the same illuminance as that of daytime, it seems that the illuminance has decreased.

[0004]

In the former lighting device,
After shifting from a state in which the lighting load is automatically controlled by the human body detection sensor and the illuminance sensor to a state in which the lighting load is forcibly turned on or off, the lighting load is automatically controlled unless the shifted state is released. Cannot be returned to For example, even when the lighting load is forcibly turned on, the user often assumes that the lighting load is automatically turned on and off,
In some cases, the user leaves or goes out of the room while the lighting load remains lit. When the lighting load is automatically turned on / off, it is normal to keep the lighting load on for a certain period of time (called a lighting holding time) after a person is no longer detected in the detection area. In many cases, the user does not notice that the lighting load is forcibly turned on even when the lighting load does not turn off immediately when the user goes out. That is, the user forgets to turn off the lighting load. In this way, the reason why the lighting load is kept lit for a certain period of time even after a person no longer exists in the detection area is that detection of a person by the human body detection sensor may be interrupted for some reason, In such a case, it is inconvenient to suddenly turn off the illumination load even though there is a person in the detection area.

Conversely, if the lighting load is not turned on when a person enters or goes home while the light is forcibly turned off, it may be mistaken that the human body detection sensor has failed. In particular, if no one has forcibly turned on or off the lighting load, it takes time to find out why the lighting load does not turn off even after leaving or leaving, and to find out why the lighting load does not turn on after entering or returning home. It will take time.

By the way, if the lighting load is used for office lighting, the lighting load is usually turned on even in the daytime. With such a lighting load, it is meaningful to turn on and off by the human body detection sensor at night when the person is absent, but in the daytime when the person is always indoors, it is turned on and off by the human body detection sensor. There is no point in the control of. Similarly, an illuminating device in which the illuminance sensor keeps the illuminance of the work surface almost constant against the illuminance change in the daytime is meaningless in a time zone in which the ambient illuminance hardly changes, such as at night. .

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a first object of the present invention is to change the operation mode to an operation mode by an appropriate operation when a plurality of operation modes can be selected, and then to execute the operation under a predetermined return condition. A second object of the present invention is to provide a lighting device having improved usability by automatically returning to a basic mode. A second object is to provide a comfortable lighting space by restricting meaningless control by a sensor. Another object of the present invention is to provide a lighting device.

[0008]

According to a first aspect of the present invention, there is provided a control means for selecting a plurality of operation modes and controlling a lighting load according to the operation mode, and one of the operation modes of the control means. Operation means capable of selecting the unit as an operation mode, and the control means automatically switches to a predetermined basic mode among the operation modes when a predetermined return condition is satisfied after the operation mode is selected by the operation means. It will return.

According to this configuration, even if the operation mode is selected by the operation means, the operation mode is automatically returned to the basic mode when a predetermined return condition is satisfied. Therefore, the operation mode is temporarily switched to the operation mode. Even if it does, it can automatically return to the basic mode. Claim 2
The lighting device according to claim 1, wherein the return condition is a start of power supply.

According to this configuration, if the power is turned off during the selection of the operation mode or if a power failure occurs, the power supply is resumed and the basic mode is set. It can be made to stand by in the same state. According to a third aspect of the present invention, in the first aspect of the present invention, the return condition is a lapse of a predetermined time after selecting an operation mode by the operation means.

In this configuration, when the operation mode is selected by the operation means, the operation mode returns to the basic mode after a predetermined time. Therefore, even if the user forgets to select the operation mode, the operation mode can be automatically returned to the basic mode. The invention according to claim 4 is the invention according to claim 1, further comprising a human body detection sensor that generates an output according to the presence or absence of a person in the detection area, wherein the return condition is set such that the human body detection sensor stops detecting a person. I have.

According to a fifth aspect of the present invention, in the first aspect of the present invention, there is provided a human body detection sensor for generating an output in accordance with the presence or absence of a person in the detection area, and the return condition is determined by the human body detection sensor. The predetermined time has passed after the battery has disappeared. In the configuration of claims 4 and 5, an operation mode in which the lighting load is forcibly turned on or off regardless of whether or not a human body detection sensor detects a person is set as an operation mode,
If the operation mode in which the lighting load is turned on / off in accordance with the presence or absence of the detection of a person by the human body detection sensor is set to the basic mode, it is possible to automatically return to the basic mode after the operation in the operation mode. If the operation mode is selected to be turned off, the lighting load can be forcibly turned off by operating the operation means, so that it can be confirmed that the lighting load has been turned off surely. When it is turned on, it turns on automatically and no operation is required.

According to a sixth aspect of the present invention, in the first aspect of the present invention, an illuminance sensor for detecting the ambient illuminance is provided, and the return condition is that the ambient illuminance detected by the illuminance sensor is equal to or higher than a predetermined level. . In this configuration, for example, even when the operation mode is shifted to the operation mode at night, it is possible to return to the basic mode when the ambient illuminance increases in the morning. That is, it is possible to operate in the basic mode the next day.

According to a seventh aspect of the present invention, in the first aspect of the present invention, an illuminance sensor for detecting the ambient illuminance is provided, and the return condition is such that the ambient illuminance detected by the illuminance sensor is equal to or lower than a predetermined level. It is. In this configuration, for example, even when the operation mode is shifted to the operation mode in the daytime, it is possible to return to the basic mode when the ambient illuminance decreases at night.

According to an eighth aspect of the present invention, in the first to seventh aspects of the present invention, the illumination load is turned on for a fixed time when returning to the basic mode. According to this configuration, it is possible to notify that the mode has returned to the basic mode by turning on the illumination load for a certain period of time when returning to the basic mode, and disconnection of the power supply system due to the lighting of the illumination load. And no failure has occurred.

According to a ninth aspect of the present invention, in the fourth or fifth aspect of the present invention, the operation mode is a compulsory mode for instructing only one of turning off or turning on the lighting load, and In the forced mode, the lighting load is turned off or turned on in accordance with an instruction of the operation means regardless of whether or not a human is detected by the human body detection sensor,
The basic mode is a sensor mode in which the lighting load is turned on / off in accordance with the presence or absence of the detection of a person by the human body detection sensor.

According to this configuration, the lighting load can be forcibly turned on or off by the operation means, and thereafter, the sensor mode for turning on and off the lighting load in accordance with the presence or absence of the detection of a person by the human body detecting sensor. Since the mode is automatically restored, the mode can be reliably restored from the forced mode to the basic mode. For example, even if the lighting load is forcibly turned off when the user leaves or goes out, the sensor mode is automatically restored, so that the lighting load can be automatically turned on next time the user enters or returns home.

According to a tenth aspect, in the fourth or fifth aspect, the operation mode is a compulsory mode for instructing only one of turning off or turning on the lighting load. In the forced mode, the lighting load is turned off or turned on in response to an instruction from the operating means regardless of whether or not a human body is detected by the human body detection sensor, and the lighting load is turned on for a fixed time when returning to the basic mode. It is.

This configuration operates in the same manner as the ninth aspect. An invention according to claim 11 is the invention according to claim 1, further comprising a human body detection sensor that generates an output in accordance with the presence or absence of a person in the detection area, wherein the operation mode turns off or turns on the lighting load. In the forced mode instructing only one of the above, the control means in the forced mode to turn off or on the lighting load according to the instruction of the operating means regardless of the presence or absence of detection of a person by the human body detection sensor,
When a predetermined time elapses after the selection of the forced mode by the operation means, the mode is returned to the basic mode.

According to a twelfth aspect of the present invention, in the first aspect of the present invention, an illuminance sensor for detecting ambient illuminance is provided, and the operation mode is forcibly instructing only one of turning off or turning on the lighting load. In the forced mode, the control unit turns off or turns on the illumination load regardless of whether or not a human body is detected by the human body detection sensor, and the illuminance detected by the illuminance sensor in the forced mode is selected. When the level exceeds the level, the mode is returned to the basic mode.

The eleventh and twelfth aspects of the present invention are preferred embodiments of the first aspect of the present invention. The invention of claim 13 is a human body detection sensor that generates an output according to the presence or absence of a person in the detection area, a control unit that controls a lighting state of a lighting load according to an output of the human body detection sensor, The control means keeps the lighting load in a specific state regardless of the output of the human body detection sensor during the period when the output of the day and night detection means indicates daytime.

According to a fourteenth aspect of the present invention, there is provided a human body detection sensor for generating an output according to the presence or absence of a person in a detection area, a control means for controlling a lighting state of an illumination load according to an output of the human body detection sensor, And day and night detection means for distinguishing between night and night, the lighting load is dimmable according to an instruction from the control means, the control means detects the output of the human body detection sensor during the period when the output of the day and night detection means indicates daytime. The lighting load is dimmed and lit with a predetermined light output during periods other than the period in which the lighting load is rated on the basis of the lighting load.

According to a fifteenth aspect of the present invention, there is provided a human body detection sensor for generating an output in accordance with the presence or absence of a person in a detection area, control means for controlling a lighting state of a lighting load in accordance with the output of the human body detection sensor, Day and night detecting means for distinguishing between night and night, and the control means switches the lighting load for a certain lighting holding time when the state changes from a state where a person is detected to a state where no person is detected in the detection area of the human body detection sensor. The lighting state is set so as to be kept lit, and the lighting holding time is set longer during a period when the output of the day / night detecting means indicates the daytime than during a period when the output indicates the nighttime.

[0024] According to a sixteenth aspect of the present invention, an illuminance sensor for detecting the ambient illuminance, a control product for controlling the light output of the illumination load according to the ambient illuminance detected by the illuminance sensor, and daytime and nighttime are distinguished. Day and night detection means, the control means,
During the period when the output of the day / night detection means indicates night, the lighting load is kept in a specific state regardless of the output of the illuminance sensor.

According to a thirteenth aspect of the present invention, there is provided a lighting apparatus having an operation mode for automatically controlling a lighting load using a human body detection sensor or an illuminance sensor, in which meaningless control is eliminated. In addition, it is possible to prevent unnecessary operation such as turning off the illumination load in the daytime due to a malfunction when using the human body detection sensor or changing the illuminance at night when using the illuminance sensor. result,
A more comfortable lighting space can be formed by controlling the lighting load with the sensor.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION

(Embodiment 1) This embodiment basically has the configuration shown in FIG. 1A and operates according to the procedure shown in FIG. 1B. That is, as described in the related art, the human body detection sensor 1 that detects the presence or absence of a person in a detection area using a pyroelectric element or the like is provided, and the control unit 2 uses the output of the human body detection sensor 1 to load the illumination load 3. Control. Further, since it is added to the lighting device, a remote control signal receiving unit 4 is provided to eliminate the need for wiring for connecting the operation unit, and a remote control using infrared rays or radio waves from the remote control transmitter 5 as a medium. It is designed to receive signals. That is, the remote control transmitter 5 functions as an operation unit that gives an instruction to the control unit 2. The remote control transmitter 5 according to the present embodiment has a lighting load 3
Can be instructed only when the user leaves the room or goes out. The human body detection sensor 1, the control unit 2, the lighting load 3, and the remote control signal receiving unit 4 are provided on the fixture main body to constitute the lighting fixture A.

The control unit 2 basically operates as shown in FIG. That is, it always operates in the sensor mode (S
1) In the sensor mode, the lighting load 3 is turned on / off based on the output of the human body detection sensor 1. In the sensor mode operation, the lighting load 3 is turned on when a person is present in the detection area of the human body detection sensor 1, and when the human body detection sensor 1 no longer detects a person, the illumination load 3 is turned off after a predetermined time (this time The light is turned off during the lighting holding time).

When the forced mode is instructed by receiving the remote control signal from the remote control transmitter 5 by the remote control signal receiving unit 4 (S2), the control unit 2 shifts from the sensor mode to the forced mode (S3). The load 3 is turned off.
That is, the lighting load 3 is forcibly turned off regardless of the output of the human body detection sensor 1. When the lighting load 3 is turned off by the operation of the remote control transmitter 5, the lighting load 3 is turned off immediately after the operation, unlike when the lighting load 3 is turned off by the output of the human body detection sensor 1. This enforcement mode
The state is maintained while the person is detected by the human body detection sensor 1, and after the person is no longer detected (S4), when the above-described lighting holding time elapses (S5), the mode returns to the sensor mode (S1). The reason for returning to the sensor mode after the lapse of the lighting holding time after the detection of a person is that the means for limiting the lighting holding time in the sensor mode is also used for returning from the forced mode, and the time limiting means is used. If it is not necessary to share the lighting load 3, the lighting load 3 may be turned off in a shorter time than the lighting holding time after the human body detection sensor 1 stops detecting a person. In addition, after the lighting load 3 is turned off, the human body detection sensor 1 may immediately return to the sensor mode when no more humans can be detected.

In the configuration of this embodiment, the user operates the remote control transmitter 5 when going out or leaving the room. Since the lighting load 3 is turned off immediately by this operation, the user may feel uneasy whether the lighting load 3 is really turned off, or feel uncomfortable that the lighting load 3 is not turned off even though he is outdoors or outdoors. I do not miss. Moreover, after the operation of turning off the light, when the human body detection sensor 1 stops detecting a person, the sensor mode is automatically returned to the sensor mode. Therefore, the lighting load 3 can be automatically turned on next time when returning home or entering a room. it can. That is, the lighting load 3 is automatically turned on and off in other states only by performing the operation of turning off the light when going out or leaving the room. Therefore, even if the user forgets to perform the operation of forcibly turning off the light when entering the room or returning home when leaving the room or going out, the operation for forcibly turning on the light or the sensor mode as in the conventional configuration is performed. The operation of switching to is unnecessary. As a result, the user may feel uneasy that the lighting load 3 has failed because the lighting load 3 does not light up, or may feel that it is inconvenient that the lighting operation is necessary despite the function of automatically turning on the light. It is gone. In short, the present embodiment can satisfy the user's request for forcibly turning off the light and turning on the light automatically.

In the present embodiment, the switching to the forced mode is performed wirelessly by using the remote control transmitter 5, but the switching to the forced mode may be performed by a switch connected by wire. . It is desirable that the switching operation be provided with an operation unit such as a push button switch that returns to the original position after the operation. (Embodiment 2) In the present embodiment, instead of turning off the lighting load 3 in the forced mode as in the first embodiment, the lighting load 3 is turned on in the forced mode. Further, in the first embodiment, after the lighting load 3 is turned off in the forced mode, the sensor mode is restored after the human body detection sensor 1 detects a person, but in the present embodiment, the lighting load 3 is switched in the forced mode. When a certain time elapses after the light is turned on, the sensor mode is restored. If the time for returning from the forced mode to the sensor mode is the above-described lighting holding time, there is no need to separately provide a means for limiting the time, but the time limit is not particularly limited. By the operation of the present embodiment, it is possible to return to the sensor mode after turning on the illumination load 3 in the forced mode. In other words, if a person is detected by the human body detection sensor 1 within the above-mentioned fixed time after the lighting load 3 is turned on in the forced mode, and if a person is detected after the above-mentioned certain time, the lighting load 3 is turned on. Even if the lighting load 3 is turned on in the compulsory mode, the lighting load 3 can be automatically turned off when no person is detected by the human body detection sensor 3 after a certain period of time. As a result, forgetting to turn off the lighting load 3 can be prevented.

If the configuration of this embodiment is adopted, for example, even when the room is large and the detection area of the human body detection sensor 1 cannot cover up to the vicinity of the entrance of the room,
It becomes possible to enter the room after the lighting load 3 is forcibly turned on in advance. (Embodiment 3) In Embodiment 1, after the human body detection sensor 1 has stopped detecting a person after the forced mode, the sensor mode is returned to the sensor mode. In the present embodiment, after the lighting load 3 is turned off in the forced mode, When a certain time elapses regardless of whether or not the human body detection sensor 1 detects a person, the mode returns to the sensor mode.

Also in this configuration, in the forced mode, the illumination load 3
Can be turned off immediately, so that the user does not feel uneasy or uncomfortable as in the first embodiment.
Moreover, if a person enters the detection area of the human body detection sensor 1 within a certain period of time after turning off the lighting load 3, the lighting load 3 is turned on when a certain period of time elapses and the mode returns to the sensor mode. If, after performing an operation for shifting to the forced mode in the detection area of the sensor 1, the user forgets about something left behind, the human body detection sensor 1
The lighting load 3 can be automatically turned on even if it does not go out of the detection area once. Other configurations and operations are the same as those of the first embodiment.

(Embodiment 4) In this embodiment, as shown in FIG. 2, an illuminance sensor 6 for detecting the ambient illuminance is added to the same configuration as in Embodiment 1. The control unit 2 basically keeps the lighting load 3 in the off state when the ambient illuminance detected by the illuminance sensor 6 is equal to or higher than a predetermined level regardless of whether the human body detection sensor 1 detects a person. Further, similarly to the first embodiment, the remote control transmitter 5
Has a function of selecting the compulsory mode by a remote control signal from the controller and turning off the lighting load 3 immediately after the operation. However, the control unit 2 does not return to the sensor mode in response to the output of the human body detection sensor 1 after the forced mode,
It is configured to return to the sensor mode based on the output of the illuminance sensor 6.

That is, in the present embodiment, the illumination load 3 is turned on / off in response to the output of the human body detection sensor 1 only when the ambient illuminance is equal to or lower than a predetermined level (that is, when it is dark). It is effective only when the ambient illuminance detected by the illuminance sensor 6 is equal to or lower than a predetermined level and a person is detected by the human body detection sensor 1. On the other hand, when the forced mode is selected, the output of the illuminance sensor 6 is also invalidated. That is, in the forcible mode, the lighting load 3 is kept off regardless of the output of the human body detection sensor 1 and the surrounding illuminance detected by the illuminance sensor 6.

By the way, in the normal environment, the ambient illuminance has a periodicity of one day, and changes repeatedly from a state where the ambient illuminance is below a predetermined level to a level above a predetermined level and again below the predetermined level. Here, assuming that the illumination load 3 is turned off by selecting the compulsory mode while the ambient illuminance is at or below the predetermined level, it is necessary to turn on the lighting load 3 during the period when the ambient illuminance is at or above the predetermined level. However, when the ambient illuminance falls below the predetermined level again, it is required to turn on and off the lighting load 3 again in response to the output of the human body detection sensor 1.

In the control unit 2 according to the present embodiment, the lighting load 3 in the lighting state is forcibly turned off in response to an instruction from the remote control transmitter 5 during the period in which the ambient illuminance is equal to or lower than the predetermined level. The reading of the output of the sensor 6 is continued, and when the ambient illuminance becomes equal to or higher than a predetermined level, the forced mode is canceled and the mode is returned to the sensor mode.

This operation is specifically shown in FIG. In FIG.
The ambient illuminance detected by the illuminance sensor 6 is the level TH
In the above case, the lighting load 3 is kept off and the level T
In the case of H or less, the illumination is performed in response to the output of the human body detection sensor 1.
The light load 3 is turned on and off. Now, time
Time t₁Suppose that the lighting load 3 is turned off in the forced mode
You. Ambient illuminance is morning time t_TwoTo reach level TH
At this point, the mode returns to the sensor mode.
After that, evening time t_ThreeUntil the ambient illuminance is level TH
Time t_TwoFrom time t_ThreeUntil the human body
Lighting load regardless of presence or absence of human detection by detection sensor 1
3 is kept off. Evening time t _ThreeWhen it becomes
The illuminance reaches the level TH, and this time t_ThreeAlready has
After returning to the samode, the human body sensor
When a person is detected in step 1, the lighting load 3 is turned on.

[0038] In this case, the time of returning from the forced mode to sensor mode, although the time t ₂ when the ambient illuminance is equal to or greater than level TH, may at any time as long as from time t ₂ at time t _3, time it is sufficient to return to the sensor mode to up to t _3. That is, when the ambient illuminance once exceeds the level TH and then returns to the level TH, the sensor mode is restored.

In the first embodiment, the mode is returned to the sensor mode based on the output of the human body detection sensor 1. In the present embodiment, the mode is returned to the sensor mode using the output of the illuminance sensor 6. The output of the detection sensor 1 is not used for returning to the sensor mode. This is because it is not necessary to return to the sensor mode based on the output of the illuminance sensor 6 if returning to the sensor mode based on the output of the human body detection sensor 1 as in the first embodiment.

(Embodiment 5) This embodiment has the same configuration as that of Embodiment 4 shown in FIG. 2, except that the processing procedure of the control unit 2 is changed. That is, the fourth embodiment
In the embodiment, the lighting load 3 is turned off in the forced mode. However, in the present embodiment, the lighting load 3 is turned on in the forced mode. In general, it is necessary to turn on the light in the forced mode when the ambient illuminance exceeds the level TH. During this time, the lighting load 3 is turned off, but the remote control transmitter 5 selects the forced mode. Thus, the illumination load 3 can be turned on.

When the lighting load 3 is turned on in the forced mode,
Thereafter, the lighting state of the illumination load 3 is continued. Therefore, in the present embodiment, the point in time when the mode is returned from the forced mode to the sensor mode is set to the point in time when the ambient illuminance falls from the state exceeding the level TH to the level TH. As a result, the lighting load 3
When is turned on, the operation is such that when it becomes dark in the evening, the forcible mode is released and the mode shifts to the sensor mode.

The operation of the present embodiment is performed, for example, when the ambient illuminance falls below the level TH after the forced load mode is selected and the illumination load 3 is turned on while the ambient illuminance exceeds the level TH. Thus, the lighting load 3 can be continuously turned on until no one is detected in step 1. Therefore, when the lighting is turned on even during the daytime like office lighting, the lighting load 3 can be automatically turned off after the ambient illuminance falls below the level TH and the person leaves the room. . Other configurations and operations are the same as those of the first embodiment.

(Embodiment 6) In this embodiment, as shown in FIG. 4, a lighting fixture A having the configuration of Embodiment 1 is connected via a breaker B from a power supply (showing a commercial AC power supply) E such as a commercial power supply. Power. The forced mode is a mode in which the lighting load 3 is turned off as in the first embodiment, and can be instructed by the remote control transmitter 5.

By the way, the feature of this embodiment is that if the breaker B is turned off during the forced mode (when the handle of the breaker B is operated or an abnormal current flows), the breaker B is turned on next. Sometimes, the control unit 2 performs the following reset operation. That is, the control unit 2
When the power is turned off during the forced mode, when the power is turned on next time, the lighting load 3 is turned on for the above-described lighting holding time regardless of whether the human body detection sensor 1 detects a person. After that, a reset operation of entering the sensor mode is performed. By such a reset operation, the lighting load 3 is once turned on when the power is turned on again, and it can be confirmed that the lighting fixture A is operating normally by turning on the lighting load 3. Other configurations and operations are the same as those of the first embodiment.

In the above description, the case where the lighting load 3 is turned off in the forced mode has been described. However, also when the lighting load 3 is turned on in the forced mode, if the breaker B is turned off during the forced mode, then the breaker B is turned off. If the lighting load 3 is lit once when is turned on, the operation of the lighting fixture A can be confirmed. Lighting fixture A
However, needless to say, the illuminance sensor 6 may be provided as in the fourth and fifth embodiments.

(Embodiment 7) The present embodiment has basically the same configuration as the embodiment 4 shown in FIG. 2, and the procedure for returning from the forced mode to the sensor mode is also the same as that of the embodiment 4. is there. The difference from the fourth embodiment is that the control unit 2 controls the lighting load 3 according to the ambient illuminance detected by the illuminance sensor 6.
The ambient light intensity is adjusted to the level T described above.
The point is that the lighting load 3 is kept in the lighting state while the lighting load 3 is equal to or higher than H, and the lighting load 3 is turned on / off according to the output of the human body detection sensor 1 when the ambient illuminance becomes lower than the level TH.

In the present embodiment, when the ambient illuminance is equal to or lower than the level TH, an instruction for a forced mode for turning off the illumination load 3 can be given by the remote control transmitter 5, and when the ambient illuminance is equal to or higher than the level TH, the illumination load 3 is turned on. . Further, while the illumination load 3 is on, the light output of the illumination load 3 is controlled in accordance with the ambient illuminance so that the work surface is maintained at a substantially constant illuminance regardless of a change in the ambient illuminance. here,
As in the fourth embodiment, the output of the human body detection sensor 1 becomes invalid even when the mode returns to the sensor mode during the period in which the ambient illuminance is equal to or higher than the level TH.

During a period in which the ambient illuminance is equal to or lower than the level TH, the lighting load 3 is turned on while the human body detection sensor 1 is detecting a person. When the lighting load 3 is instructed to turn off, the lighting load 3 is turned off. Here, after the ambient illuminance becomes equal to or higher than the level TH, the level T
The control unit 2 returns to the sensor mode until it becomes H or less.

The present embodiment is effective mainly for lighting offices and shops, and it is difficult for a person to be present during the daytime when the ambient illuminance is equal to or higher than the level TH. There is no particular problem if the lighting load 3 is continuously turned on without performing the above operation. That is, the main purpose of automatically turning on / off the lighting load 3 by the output of the human body detection sensor 1 is to prevent wasteful power consumption by preventing forgetting to turn off the lighting load 3. Since a person is rarely absent, the human body detection sensor 1 is used for this kind of purpose in the daytime.
It makes little sense to make the work. Therefore, in the daytime, only the light output of the illumination load 3 is controlled in accordance with the ambient illuminance detected by the illuminance sensor 6, and the illumination load 3 is continuously turned on. In addition, a pyroelectric element is generally used for the human body detection sensor 1, and the pyroelectric element is a differential sensor. , The lighting load 3 may be turned off. Although such an operation is unlikely to occur, it is possible, but if it is continuously turned on regardless of the output of the human body detection sensor 1 in the daytime as described above, there will be no people in the daytime. Nevertheless, there is no longer a risk of discomfort caused by the lighting load 3 being turned off.
When a person returns home at night, the lighting load 3 does not need to be turned on, so that the lighting load 3 is turned on / off in response to the output of the human body detection sensor 1. Other configurations and operations are the same as those of the first embodiment.

Note that a timer may be used instead of using the ambient illuminance detected by the illuminance sensor 6 as information for distinguishing between daytime and nighttime. That is, the point that the output of the human body detection sensor 1 is ignored during the period in which the ambient illuminance is equal to or higher than the level TH is the same as in the above-described embodiment, but the state in which the illumination load 3 is continuously turned on and the output of the human body detection sensor 1 are different. A timer is used as a means for selecting a state of turning on and off in response. This type of timer may manage clock time, but it is preferable to use a so-called solar timer that manages astronomical time such as sunrise or sunset because it substitutes for ambient illuminance. Whether the timer is built in the lighting fixture A or provided separately from the lighting fixture A can be appropriately selected.

(Eighth Embodiment) As shown in FIG. 5, this embodiment has a configuration in which a day / night detection unit 7 is added to the configuration of the first embodiment. The control unit 2 turns on and off the lighting load 3 basically in response to the output of the human body detection sensor 1 irrespective of night or day. Further, if the forced mode is selected by the remote control transmitter 5, the lighting load 3 can be turned off immediately, and thereafter, the human body detection sensor 1 returns to the sensor mode after the detection of a person is stopped. By the way, the control unit 2 includes a counter 2a for determining a lighting holding time for holding the lighting load 3 in a lighting state after the human body detection sensor 1 stops detecting a person. The lighting holding time can be set in two stages based on That is, the counter 2a counts the clock signal, and the switching of the lighting holding time is performed by switching the count-up value of the counter 2a or by switching the frequency of the clock signal. The counter 2a is configured to reset when a signal indicating human detection is newly input from the human body detection sensor 1 while counting the clock signal, and to count again from the next clock signal. That is, the human body detection sensor 1 uses a pyroelectric element, and is configured to transmit a pulse-like signal each time a person moves while the person is in the detection area. When the counter 2a is reset by this signal, the counter 2a starts counting the clock signal, and the lighting load 3 is turned on while the counter 2a is counting the clock signal. In other words, when the counter 2a is reset and the counting of the clock signal is started, the counter 2a is reset every time the signal is input from the human body detection sensor 1 until the counter 2a counts up thereafter, and the lighting load is reduced. The lighting time of No. 3 is extended. Therefore, the lighting holding time is the time from when the human body detection sensor 1 stops detecting a person until the counter 2a counts up, and the control unit 2 turns off the lighting load 3 after the lighting holding time elapses.

The day / night detecting section 7 determines whether daytime and nighttime are distinguished by detecting ambient illuminance using an illuminance sensor,
Alternatively, the daytime and the nighttime are distinguished by using the timer described in the seventh embodiment (preferably a solar timer). The lighting holding time is set longer in the daytime than in the nighttime. That is, if the sensor mode, as shown in FIG. 6, is turned to without distinction lighting load 3 of day and night during a period T ₁ a person by the human body detection sensor 1 has been detected, at night by the solid line in FIG. 6 As shown, the time T ₂ after the person is no longer detected
After the time elapses, the lighting load 3 is turned off. On the other hand, in the daytime, as shown by the dashed line in FIG. 6, the lighting load 3 is turned off after a lapse of time T ₃ (> T ₂ ) after the detection of a person is stopped.

As described above, the lighting holding time is set to be longer in the daytime than in the nighttime.
The illumination load 3 can be maintained in a lighting state even when the time during which a human body is not detected by the human body detection sensor 1 is slightly longer. In addition, there is little traffic at night and the lighting load 3 only needs to be turned on while there is a person who needs lighting. Therefore, the lighting holding time is relatively short.

Other configurations and operations are the same as those of the seventh embodiment, and the counter 2a is used as described in the present embodiment.
The configuration in which the lighting holding time is limited by using is applicable to other embodiments. (Embodiment 9) As shown in FIG. 7, this embodiment has a configuration in which a day / night detection section 7 is added to the configuration of Embodiment 1. The control unit 2 basically controls the lighting load 3 so as to correspond to the output of the human body detection sensor 1. Further, if the forced mode is selected by the remote control transmitter 5, the lighting load 3 can be turned off immediately, and thereafter, the human body detection sensor 1 returns to the sensor mode after the detection of a person is stopped.

The feature of the present embodiment is that, even in the daytime, even if the human body detection sensor 2 stops detecting a person, the illumination load 3 is kept turned on without turning off the illumination load 3. In the forced mode, the lighting load 3 is turned off, but in the sensor mode, the lighting load 3 is kept turned on with a small light output even when no person is detected. here,
The lighting load 3 uses a dimmable lighting device 3b for lighting the lamp 3a. When a person is not detected, dimming is performed so that a minimum light output that can be set by the lighting device 3b is obtained.

According to this configuration, the illumination load 3 is lit even in the daytime even when no human body is detected by the human body detection sensor 2, so that when the human body is detected, the light output may be controlled to increase. is there. In other words, the fluorescent lamp widely used for the lighting load 3 has to go through a stage of preheating → starting → lighting in a state where the light is turned off. Even when no light is detected, the lighting load 3 continues to be turned on, so that it is possible to shift to the rated lighting state in a shorter time than to shift from turning off to turning on. Further, even when a person is present in the detection area of the human body detection sensor 1, even if the human body detection sensor 1 no longer detects the presence of the person for some reason (for example, when there is no motion of the person), As compared with the case where the illumination load 3 is turned off, the change in the light amount is small, and the discomfort due to the rapid change in the light amount is small.

The general place of use of this embodiment is as follows.
As in the eighth embodiment, there is a place where people enter and leave during the day, and the lighting load 3 only needs to be turned on during the night when there is a person who needs lighting. It is also suitable for use in offices and stores that are mainly used only during the daytime and require illumination during the day. (Embodiment 10) Each of the above-described embodiments includes the human body detection sensor 1, but this embodiment does not include the human body detection sensor 1 but includes the illuminance sensor 6, as shown in FIG. It is. The remote control signal is used to turn on / off the lighting load 3. In the present embodiment, by controlling the light output of the illumination load 3 in accordance with the output of the illuminance sensor 6 during the daytime (when the ambient illuminance is equal to or higher than the predetermined level TH), the illuminance of the work surface can be kept substantially constant. West,
At night (when the ambient illuminance is equal to or lower than a predetermined level TH), the control unit 2 controls the illumination load 3 so that the illumination load 3 is turned on with a constant light output regardless of the ambient illuminance detected by the illuminance sensor 6. . Here, as the lighting load 3, it is needless to say that a lighting device capable of controlling the light is used as the lighting device 3b for lighting the lamp 3a.

In this embodiment, when there is a change in the ambient illuminance, such as during daytime, the light output of the illumination load 3 is adjusted based on the output of the illuminance sensor 6 to keep the illuminance on the work surface substantially constant. Lighting load 3 because there is almost no outside light at night
When the light output is changed, the change in the light output becomes noticeable, which may cause discomfort. In addition, since the ambient illuminance hardly changes at night, it is often useless to change the light output of the illumination load 3 according to the output of the illuminance sensor 6. Therefore, in this embodiment, the light output of the illumination load 3 is kept constant regardless of the output of the illuminance sensor 6 at night.

In this embodiment, the human body detection sensor 1 is provided, and the lighting load 3 is turned on / off in response to the output of the human body detection sensor 1, and is combined with a configuration in which the lighting load 3 is turned off in the compulsory mode. You may.

[0060]

According to a first aspect of the present invention, there is provided a control means for controlling a lighting load in accordance with an operation mode, wherein a plurality of operation modes are selectable, and a part of the operation mode of the control means is changed to an operation mode. The control means automatically returns to a predetermined basic mode among the operation modes when a predetermined return condition is satisfied after the operation mode is selected by the operation means. Yes, even if the operating mode is selected by the operating means, the mode automatically returns to the basic mode when the predetermined return condition is satisfied. It can be returned to.

As in the second aspect of the present invention, when the return condition is the start of power supply, when the power is turned off during the selection of the operation mode or when a power failure occurs, the power supply should be restarted. If the power supply is resumed, the state of the lighting load can be set to the same state when the power supply is resumed, and the standby state can be established. In the case where the return condition is a predetermined time after the operation mode is selected by the operation means as in the invention of claim 3,
When the operation mode is selected by the operation means, the operation mode returns to the basic mode after a predetermined time. Therefore, there is an advantage that the operation mode can be automatically returned to the basic mode even if the operation mode is forgotten.

According to a fourth aspect of the present invention, there is provided a human body detection sensor for generating an output in accordance with the presence or absence of a person in the detection area, and the return condition is such that the human body detection sensor does not detect a person. As in the invention of the fifth aspect, there is provided a human body detection sensor that generates an output according to the presence or absence of a person in the detection area, and the return condition is that a predetermined time has elapsed after the human body detection sensor no longer detects a person. The operation mode is the operation mode in which the lighting load is forcibly turned on or off regardless of the presence or absence of a human body detection sensor, and the lighting load is turned on / off according to the presence or absence of a human body detection sensor. If the operation mode to be set is the basic mode, it is possible to automatically return to the basic mode after the operation in the operation mode. If the operation mode is selected to be turned off, the lighting load can be forcibly turned off by operating the operation means, so that it can be confirmed that the lighting load has been turned off surely. There is an advantage that when the light is turned on, the light is turned on automatically and no operation is required.

In the case where an illuminance sensor for detecting the ambient illuminance is provided and the return condition is such that the ambient illuminance detected by the illuminance sensor is equal to or higher than a predetermined level, for example, at night, Even when the mode is shifted to the operation mode, the mode can be returned to the basic mode when the ambient illuminance increases in the morning. That is, it is possible to operate in the basic mode the next day.

According to a seventh aspect of the present invention, an illuminance sensor for detecting the ambient illuminance is provided, and the return condition is such that the ambient illuminance detected by the illuminance sensor becomes a predetermined level or less. Even when the operation mode is shifted to the operation mode, it is possible to return to the basic mode when the ambient illuminance decreases at night. According to the eighth aspect of the present invention, when returning to the basic mode, the lighting load is turned on for a fixed time, and when returning to the basic mode, the lighting load is turned on for a certain time to return to the basic mode. And that the illumination load is turned on, so that it is possible to know that there is no disconnection or the like in the power supply system and no failure has occurred.

According to a ninth aspect of the present invention, the operation mode is
In the forced mode in which either the lighting load is turned off or the lighting is instructed, the control means turns off the lighting load in the forced mode according to the instruction of the operating means regardless of the presence or absence of a human detection by the human body detection sensor. Or turn it on,
The basic mode may be a sensor mode in which the lighting load is turned on / off in accordance with the presence or absence of a human detection by the human body detection sensor, or the operation mode may be such that the lighting load is turned off or turned on, as in the invention of claim 10. In the forced mode in which only one of them is instructed, the control means in the forced mode turns off or on the lighting load according to the instruction of the operating means irrespective of the presence or absence of human detection by the human body detection sensor, and switches to the basic mode. If the lighting load is turned on for a certain period of time when returning, the lighting load can be forcibly turned on or off by operating means, and then the lighting load is turned on and off according to the presence or absence of human detection by the human body detection sensor. Since the sensor mode automatically returns to the sensor mode, it is possible to reliably return from the forced mode to the basic mode. For example, even if the lighting load is forcibly turned off when leaving or leaving the room, the sensor mode automatically returns to the sensor mode, so that the lighting load can be turned on automatically when entering or returning home the next time. is there.

A thirteenth aspect of the present invention provides a human body detection sensor for generating an output in accordance with the presence or absence of a person in a detection area, control means for controlling a lighting state of an illumination load in accordance with the output of the human body detection sensor, And day and night detection means for distinguishing between night and night, and the control means keeps the lighting load in a specific state regardless of the output of the human body detection sensor during the period when the output of the day and night detection means indicates daytime. According to the configuration, since the output of the human body detection sensor is effectively used only at night, the output of the human body detection sensor is controlled at night in places where people are always present in the daytime, such as office space. , A comfortable lighting space can be obtained.

According to a fourteenth aspect of the present invention, there is provided a human body detection sensor for generating an output according to the presence or absence of a person in a detection area, control means for controlling a lighting state of an illumination load according to the output of the human body detection sensor, And day and night detection means for distinguishing between night and night, the lighting load is dimmable according to an instruction from the control means, the control means detects the output of the human body detection sensor during the period when the output of the day and night detection means indicates daytime. The lighting load is dimmed with a predetermined light output during periods other than the period when the lighting load is rated based on the lighting load.The lighting load is not turned off in the daytime, so the illuminance does not change suddenly in the daytime and is comfortable. It is possible to obtain a comfortable lighting space.

According to a fifteenth aspect of the present invention, there is provided a human body detection sensor for generating an output in accordance with the presence or absence of a person in a detection area, a control means for controlling a lighting state of an illumination load in accordance with the output of the human body detection sensor, Day and night detecting means for distinguishing between night and night, and the control means switches the lighting load for a certain lighting holding time when the state changes from a state where a person is detected to a state where no person is detected in the detection area of the human body detection sensor. The output of the day / night detection means is configured to be kept in a lit state, and the lighting holding time is set to be longer in a period indicating daytime than in a period indicating nighttime. Since the time is longer than at night, the lighting load is less likely to be turned off in the daytime even when there are no people, and discomfort caused by the lighting load being turned on and off automatically during the day Is raw Than is not.

According to a sixteenth aspect of the present invention, an illuminance sensor for detecting the ambient illuminance, a control product for controlling the light output of the illumination load according to the ambient illuminance detected by the illuminance sensor, and daytime and nighttime are distinguished. Day and night detection means, the control means,
During the period when the output of the day and night detection means indicates night, the lighting load is kept in a specific state regardless of the output of the illuminance sensor, and the lighting load is kept at a constant light output during the night when there is almost no change in the ambient illuminance. There is an advantage that the lighting does not cause discomfort due to the fluctuation of the light output.

As described above, claims 13 to 1
The invention of claim 6 is a lighting device having an operation mode of automatically controlling a lighting load using a human body detection sensor or an illuminance sensor, in which meaningless control is deleted, and a malfunction occurs when a human body detection sensor is used. It is possible to prevent unnecessary operation such as turning off the lighting load in the daytime or changing the illuminance at night when using the illuminance sensor, and as a result, by controlling the lighting load by the sensor. A comfortable lighting space can be formed.

[Brief description of the drawings]

FIG. 1 shows a first embodiment, in which (a) is a block diagram,
(B) is an operation explanatory diagram.

FIG. 2 is a block diagram showing a fourth embodiment.

FIG. 3 is an operation explanatory view showing a fourth embodiment.

FIG. 4 is a block diagram showing a sixth embodiment.

FIG. 5 is a block diagram showing an eighth embodiment.

FIG. 6 is an operation explanatory view showing an eighth embodiment.

FIG. 7 is a block diagram showing a ninth embodiment.

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

[Explanation of symbols]

 Reference Signs List 1 human body detection sensor 2 control unit 2a counter 3 lighting load 3a lamp 3b lighting device 4 remote control signal receiving unit 5 remote control transmitter 6 illuminance sensor 7 day / night detection unit

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Horiguchi 1048 Kazuma Kadoma, Kadoma City, Osaka Inside Matsushita Electric Works, Ltd.

Claims (16)

[Claims] A control means for selecting a plurality of operation modes and controlling a lighting load according to the operation mode; and an operation means for selecting a part of the operation modes of the control means as an operation mode. And a control unit that automatically returns to a predetermined basic mode among the operation modes when a predetermined return condition is satisfied after the operation mode is selected by the operation unit. 2. The lighting device according to claim 1, wherein the return condition is the start of power supply. 3. The lighting device according to claim 1, wherein the return condition is a lapse of a predetermined time after selecting an operation mode by the operation means. 4. The apparatus according to claim 1, further comprising a human body detection sensor for generating an output according to the presence or absence of a person in the detection area, wherein the return condition is that the human body detection sensor stops detecting a person. The lighting device according to the above. 5. A human body detection sensor for generating an output corresponding to the presence or absence of a person in the detection area, wherein the return condition is that a predetermined time has elapsed after the human body detection sensor stops detecting a person. The lighting device according to claim 1, wherein: 6. An illuminance sensor for detecting ambient illuminance,
The lighting device according to claim 1, wherein the return condition is that ambient illuminance detected by an illuminance sensor is equal to or higher than a predetermined level. 7. An illuminance sensor for detecting ambient illuminance,
2. The lighting device according to claim 1, wherein the return condition is that ambient illuminance detected by an illuminance sensor is equal to or lower than a predetermined level. 8. The lighting device according to claim 1, wherein the lighting load is turned on for a fixed time when returning to the basic mode. 9. The operation mode is a compulsory mode for instructing only one of turning off or turning on the illumination load. In the compulsory mode, the control means determines whether or not the human body detection sensor detects a person. Regardless, the lighting load is turned off or turned on according to the instruction of the operating means,
6. The lighting device according to claim 4, wherein the basic mode is a sensor mode in which a lighting load is turned on / off according to whether or not a human body is detected by the human body detection sensor. 10. The operation mode is a compulsory mode for instructing only one of turning off or turning on the illumination load. In the compulsory mode, the control means determines whether or not the human body detection sensor detects a person. The lighting device according to claim 4 or 5, wherein the lighting load is turned off or turned on in response to an instruction from the operating means, and the lighting load is turned on for a fixed time when returning to the basic mode. . 11. A human body detection sensor for generating an output according to the presence or absence of a person in a detection area, wherein the operation mode is a forced mode for instructing only one of turning off or turning on the lighting load. In the forced mode, the control means turns off or turns on the illumination load in accordance with an instruction from the operating means regardless of whether or not a human body is detected by the human body detection sensor, and a predetermined time after the forced mode is selected by the operating means. The lighting device according to claim 1, wherein the lighting device is returned to the basic mode after elapse. 12. A lighting device comprising: a human body detection sensor for generating an output according to the presence or absence of a person in a detection area; and an illuminance sensor for detecting ambient illuminance. In the forced mode instructing only one of them, the control means in the forced mode turns off or on the lighting load according to the instruction of the operating means regardless of the presence or absence of detection of a person by the human body detection sensor, 2. The illumination device according to claim 1, wherein when the illuminance detected by the illuminance sensor is equal to or higher than a predetermined level in a state in which the forced mode is selected by the operation unit, the illumination device is returned to the basic mode. 13. A human body detection sensor for generating an output according to the presence or absence of a person in a detection area, control means for controlling a lighting state of a lighting load according to an output of the human body detection sensor, and distinguishing between daytime and nighttime. A lighting device comprising: a day / night detecting unit that controls the lighting load in a specific state during a period in which the output of the day / night detecting unit indicates daytime, irrespective of the output of the human body detection sensor. 14. A human body detection sensor for generating an output according to the presence or absence of a person in a detection area, control means for controlling a lighting state of a lighting load according to an output of the human body detection sensor, and distinguishing between daytime and nighttime. Day and night detecting means, the lighting load is dimmable according to an instruction from the control means, and the control means detects the lighting load based on the output of the human body detection sensor during the period when the output of the day and night detecting means indicates daytime. A lighting device characterized in that a lighting load is dimmed and lighted at a predetermined light output during a period other than a period of a rated lighting. 15. A human body detection sensor for generating an output according to the presence or absence of a person in a detection area, control means for controlling a lighting state of a lighting load according to an output of the human body detection sensor, and distinguishing between daytime and nighttime. The day and night detection means, the control means, when the state is changed from a state in which a person is detected in the detection area of the human body detection sensor to a state in which no person is detected, a certain lighting holding time is a state in which the lighting load is turned on. A lighting device characterized in that the lighting and holding time is set longer during a period when the output of the day and night detection means indicates daytime than during a period when the output indicates daytime. 16. An illuminance sensor for detecting ambient illuminance, a control product for controlling a light output of an illumination load according to the ambient illuminance detected by the illuminance sensor, and day / night detecting means for distinguishing between daytime and nighttime. A lighting device, wherein the control means keeps the lighting load in a specific state regardless of the output of the illuminance sensor during a period when the output of the day and night detection means indicates night.