KR102076612B1 - Sensor Lamp - Google Patents

Abstract

Disclosed is a sensor lamp which can perform an air purification function. The sensor lamp comprises: a main body; a light transmitting cover coupled to the main body and having an inner surface coated with a photocatalyst; an operation detection unit provided in the main body and detecting a movement of a moving object to generate a movement detection signal; an illumination detection unit detecting an illumination around the main body and generating a day time state signal or a night time state signal; an LED lamp provided in the main body and illuminating a certain region around the main body; and a control unit controlling on and off of the LED lamp. The photocatalyst purifies the air in response to light in an ultraviolet region and a visible region.

Description

Sensor Lamp

The present invention relates to a sensor and the like that can simultaneously perform the function as a light and deodorization and air purification function in a narrow space, such as a corridor or toilet.

Sensors are lights that are turned on for a predetermined time when the fuselage is detected. They are installed in narrow, dark spaces such as corridors of apartment houses, home entrances, mall corridors of public buildings, and corridors of public institution buildings. Lights up to illuminate the surroundings so that people can work without discomfort. The space where the sensor or the like is installed is a place where people frequently enter and leave the confined space, so contaminated air is not easy to escape. In addition, it is necessary to purify the air from time to time because it is a place where people frequently enter and leave.

Conventional sensors have a function of illuminating a predetermined area around the sensor by providing only a light source, and do not provide a function of purifying the air as described above. There is a difficulty in creating a pleasant environment.

On the other hand, a photocatalyst is a catalyst for promoting a photochemical reaction, and when irradiated with ultraviolet rays, a photocatalytic reaction may cause a photocatalytic reaction to decompose contaminants and remove odors. As a representative photocatalyst, titanium dioxide (TiO 2) is widely used. When light in the ultraviolet (UV) region is irradiated onto the surface coated with titanium dioxide, electrons are transferred to the conduction band to form electrons and holes. These electrons and holes have very strong oxidizing and reducing power, and react with water vapor or oxygen in the air to generate strong hydroxyl radicals. The generated hydroxyl radicals can oxidatively decompose organic matters or pollutants, such as nitrogen oxides, hydrocarbons, carbon monoxide, sulfur oxides, ozone, etc., which are gaseous pollutants in the air, formaldehyde, toluene, xylene, benzene, radon, etc. It purifies the air by oxidatively decomposing tobacco smoke and its odors and other odors such as ammonia, and has an excellent effect of killing harmful bacteria such as house dust mites, bacteria, viruses, molds and bacteria.

Such photocatalysts generally react with only ultraviolet rays and undergo photocatalytic reactions. However, Patent Publication No. 10-0726336 discloses titanium dioxide that reacts with visible rays as well as ultraviolet rays and a method of manufacturing the same.

Patent Registration No. 10-0726336

It is an object of the present invention to provide a sensor and the like capable of performing both an air purification function and a lighting function.

In addition, an object of the present invention is to provide a sensor and the like that can perform the air purification function in the visible region as well as the ultraviolet region.

In order to achieve the above object, the sensor according to an embodiment of the present invention includes a main body; A translucent cover coupled to the main body and having a photocatalyst applied to an inner surface thereof; A motion detector provided in the main body and configured to generate a motion detection signal by detecting a motion of the body; An illumination sensor detecting the illumination around the main body to generate a daytime state signal or a nighttime state signal; An LED lamp provided in the main body to illuminate a predetermined area around the main body; And a controller configured to control on / off of the LED lamp, wherein the photocatalyst is a photocatalyst for purifying air in response to light in an ultraviolet region and a visible region.

Here, an inflow and outflow part capable of inflow and outflow of air may be provided between the main body and the floodlight cover.

Alternatively, the main body may further include a UV LED lamp for irradiating light in the ultraviolet region.

In this case, the UV LED lamp is characterized in that the continuously irradiated with light in the ultraviolet region.

On the other hand, the control unit, the receiving unit for receiving the motion detection signal generated by the motion detection unit, the daytime state signal generated by the illuminance detection unit and the night state signal generated by the illuminance detection unit; And when the receiver receives the daytime status signal, turns off the LED lamp regardless of whether the motion detection signal is received, and when the receiver receives the nighttime status signal, only when the receiver receives the motion detection signal. It may include a; driving control to turn on (ON) the LED lamp.

Here, the sensor and the like according to an embodiment of the present invention may be provided in the main body, and may further include a fan (force) for forcibly circulating the internal air and the external air, such as the sensor.

The control unit may include: a receiver configured to receive a motion detection signal generated by the motion detection unit, the daytime state signal generated by the illuminance detection unit, and the night state signal generated by the illuminance detection unit; And turning on the LED lamp and driving the fan when the receiver receives the motion detection signal in the state of receiving the night state signal, and the motion detection signal in the state of receiving the daytime state signal. It may include a; drive control unit for driving only the fan when receiving.

Alternatively, the controller may include a first timer configured to generate a first on signal when a first reference time is set and is in an on state; A second timer configured to generate a second on signal when a second reference time is set and is turned on; A receiver which receives a motion detection signal generated by the motion detection unit, the daytime state signal generated by the illuminance detection unit, and the night state signal generated by the illuminance detection unit; In the state in which the receiver receives the night state signal, upon receiving the motion detection signal, both the first timer and the second timer are turned on, and in the state in which the receiver receives the daytime state signal, the motion detection. A timer controller that turns on only the second timer upon receiving a signal; And when the first ON signal generated by the first timer is received, turns on the LED lamp for the first reference time, and receives the second ON signal generated by the second timer, during the second reference time. It may include a drive control unit for driving the fan.

The second reference time may be longer than the first reference time.

The sensor and the like of the present invention are coated with a photocatalyst on the floodlight cover to perform both the air purification function and the function as illumination by the photocatalytic reaction.

In addition, the sensor of the present invention, by using a photocatalyst that causes a photocatalytic reaction not only in the ultraviolet light but also in the visible light region, can induce the photocatalytic reaction by the visible light of sunlight during the day, thereby reducing the energy use required for air purification. Can be.

In addition, since the sensor of the present invention can perform the air purification function by mixing the UV LED and the LED by using a photocatalyst that causes a photocatalytic reaction not only in the ultraviolet but also in the visible light region, even when the sensor is installed indoors, the sensor is more efficient. Can purify the air.

1 is a block diagram of a sensor or the like according to an embodiment of the present invention.
2 is a perspective view of a sensor lamp according to an embodiment of the present invention.
3 is a plan view of a sensor lamp according to an embodiment of the present invention.

Hereinafter, a sensor or the like according to the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are provided by way of example in order to sufficiently convey the technical spirit of the present invention to those skilled in the art, the present invention is not limited to the drawings presented below may be embodied in any other form. have.

In addition, as described in the specification. The terms 'unit' and 'module' refer to a unit for processing at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software.

1 is a block diagram of a sensor lamp according to an embodiment of the present invention, Figure 2 is a perspective view of a sensor lamp according to an embodiment of the present invention, Figure 3 is a plan view of a sensor lamp according to an embodiment of the present invention to be.

1 to 3, the sensor lamp according to an embodiment of the present invention includes a main body 100, a floodlight cover 200, a motion detection unit 300, an illuminance detection unit 400, and an LED lamp 500. , A photocatalyst 600 and a controller 700.

The main body 100 accommodates and supports the motion detector 300, the illuminance detector 400, and the LED lamp 500.

At this time, the main body 100 may be provided with a power supply unit (not shown) for supplying power to the devices. Alternatively, the devices may be connected to an external power supply via a cable to receive power.

The transparent cover 200 is configured to be coupled to the main body 100 and is made of a transparent material. Therefore, the light irradiated from the LED lamp 500 may be transmitted to the outside through the light transmission cover 200.

At this time, the photocatalyst 600 is coated on the inner surface of the floodlight cover 200. The photocatalyst 600 is a material capable of causing the photocatalyst 600 reaction using light and purifying the air. In the present invention, the photocatalyst 600 is used to purify the air in response to light in the ultraviolet region and the visible region.

The photocatalyst 600 is preferably applied to the inner surface of the floodlight cover 200 to be protected from the external environment.

Here, the mechanism of the photocatalytic reaction is as follows.

When light shines on the photocatalyst 600, electrons and holes are generated on the surface, and the electrons react with oxygen on the surface of the photocatalyst 600 to form superoxide anion (O2-). Holes react with moisture in the air to produce hydroxyl radicals, which are then oxidized and decomposed into organic matter and water and carbon dioxide. It is effective.

As the photocatalyst 600 used in the present invention, a material capable of reacting with light in the visible region as well as light in the ultraviolet region is used.

For example, titanium dioxide containing nitrogen as the doping component can be used.

Alternatively, titanium dioxide produced using a hydrogen plasma injecting hydrogen gas into a low pressure plasma, recently developed by the Institute of Basic Science, may be used. At this time, the titanium dioxide produced using the hydrogen plasma can mass-produce the photocatalyst in an eco-friendly manner without heat treatment at high temperature and high pressure, and can improve the efficiency of the photocatalyst by about four times or more.

On the other hand, between the main body 100 and the floodlight cover 200 may be provided with an inflow and outflow portion capable of inflow and outflow of air.

In this case, the inflow and outflow portion means a means for smoothly inflow and outflow of air between the inside and the outside of the sensor when the main body 100 and the floodlight cover 200 is coupled. Therefore, it may be in the form of an outflow hole provided in the floodlight cover 200, or may be in the form of an outflow passage penetrating from the inside of the main body 100 to the outside. The hole here is not limited to the circle. However, it is preferable that the open surface in which the inflow and outflow passages or the inflow and outflow passages are exposed to the outside, such as a sensor, is open toward the lower side in order to prevent the infestation problem of the pest, the problem of rainwater, etc. due to the characteristics of the sensor installed outdoors. .

The motion detection unit 300 is provided in the main body 100 and may generate a motion detection signal when the motion of the body is detected. Therefore, when a person passes by the sensor, the motion detection signal is generated by detecting the movement of the body.

Here, the motion detection unit 300 is provided on one side of the main body 100 may be a sensor such as an infrared sensor, a thermal sensor as a detection means for detecting the movement of the body around a certain area, such as a sensor. The motion detection signal generated by the motion detection unit 300 is transmitted to the control unit 700.

The illuminance detecting unit 400 may detect the illuminance around the main body 100 to generate a day state signal or a night state signal. The illuminance detection unit 400 may calculate the illuminance at the present time by detecting a change in electrical characteristics according to the brightness of the sensor lamp, and determine whether it is in a day or night state by comparing it with a previously stored reference value. have.

Here, the illuminance detecting unit 400 may include an illuminance detecting sensor such as a Cds sensor or a photo sensor to calculate the illuminance at the present time.

When the illuminance at the present time is higher than the reference value, the illuminance sensor 400 determines the state at the present time as the day state and generates a day state signal. In addition, when the illuminance of the current time point is lower than the reference value, the illuminance sensor 400 determines the state of the current time point as the night state and generates a night state signal. The daytime state signal or the nighttime state signal generated by the illuminance sensor 400 is transmitted to the controller 700.

The LED lamp 500 is provided in the main body 100 and illuminates a predetermined area around the main body 100. The LED lamp 500 is accommodated in the interior of the transparent cover 200 is coupled to irradiate light downward, and emits visible light.

In this case, the LED lamp 500 may be formed of a plurality of LED elements.

The sensor lamp according to the present invention may further include a UV LED (800).

Here, the UV LED 800 is a LED that is provided in the body and emits ultraviolet rays, UV LED 800 has a feature that is more efficient, longer life and environmentally friendly than conventional UV mercury lamp.

At this time, the UV LED 800 is not controlled by the control unit 700 can be irradiated with ultraviolet light of weak illumination continuously. When a sensor is installed indoors, for example, when it is installed in a bathroom, a porch of a home, a corridor without windows, it is difficult to expect a photocatalytic reaction by visible light of sunlight. Therefore, it is desirable to have a UV LED 800 for continuously irradiating ultraviolet rays to be able to perform an auxiliary air purification function. That is, even when the visible light by the sunlight or the LED lamp 500 is not irradiated, the photocatalytic reaction may be induced by the ultraviolet light emitted from the UV LED 800.

On the other hand, the UV LED 800 is not only an auxiliary means, it is preferable to emit ultraviolet light in a weak illumination because it has a harmful effect such as can cause skin cancer when the ultraviolet rays are irradiated to the human body in a large amount. Therefore, it is preferable to have a number of UV LEDs 800 smaller than the number of LED lamps 500, for example, as shown in Figure 3 UV LEDs 800 are each 1 around the LED lamp 500. Four locations may be provided. However, this may be appropriately changed according to a functional purpose and the like, and the number of UV LEDs 800 is not limited.

The controller 700 is configured to control the blinking of the LED lamp 500, the LED lamp 500 is turned on to illuminate a predetermined area around the main body 100 so that there is no inconvenience in activities even at night. It can light up. Alternatively, the photocatalytic reaction may be induced by the visible light emitted from the LED lamp 500 to purify the air.

Hereinafter, the sensor of the present invention will be described in more detail with reference to the following examples.

<First Embodiment>

In a first embodiment of the sensor or the like according to the present invention, the controller 700 includes a receiver 730 and a drive controller 750.

The receiver 730 receives the motion detection signal generated by the motion detection unit 300, the daytime state signal generated by the illumination intensity detection unit 400, and the night state signal generated by the illumination intensity detection unit 400.

The drive control unit 750 is configured to control the blinking of the LED lamp 500.

At this time, when the receiver 730 receives the daytime state signal, the driving controller 750 turns off the LED lamp 500 regardless of whether the motion detection signal is received.

In addition, when the receiver 730 receives the night state signal, the driving controller 750 turns on the LED lamp 500 only when receiving the motion detection signal.

For example, suppose a person passes by around a sensor light during the day.

The daytime state signal is generated by the illuminance detector 400, and the motion detection signal is generated by the motion detector 300 and transmitted to the receiver 730.

Even if a person passes by during the day, there is no need to illuminate the surroundings of the sensor light, so it is not necessary to turn on the LED lamp 500, but it is necessary to purify the pollutants left by the person.

On the other hand, during the day, visible light by sunlight may be irradiated to the photocatalyst 600 to induce a photocatalytic reaction to purify the air without turning on the LED lamp 500.

In addition, in the present embodiment, a UV LED 800 may be further provided to continuously irradiate ultraviolet rays of weak illumination, and at this time, even if a sensor lamp is installed in the room and the sunlight is slightly weak, the photocatalyst by the visible light of sunlight Since the photocatalytic reaction by the reaction and the UV LED 800 continuously emitting ultraviolet light occurs at the same time, it is possible to efficiently purify the air.

Therefore, the driving controller 750 turns off the LED lamp 500 regardless of whether the receiver 730 receives the operation detection signal.

That is, during the day, the photocatalytic reaction is induced by using visible light of sunlight, so that pollutants can be purified without irradiation of visible light by the LED lamp 500, thereby reducing energy use.

In addition, even when the sensor light is installed indoors and the irradiation of visible light by the sunlight is weak, the photocatalytic reaction is continuously induced by the ultraviolet light emitted from the UV LED 800, which is more efficient than using the LED lamp 500 only. Can purify the air.

As another example, suppose a person passes by around a sensor light at night.

A night state signal is generated by the illuminance detector 400, and a motion detection signal is generated by the motion detector 300 and transmitted to the receiver 730.

In this case, the role of lighting to illuminate the surroundings of the sensor, etc. is also necessary, and the role of deodorizing and / or purifying pollutants of odors left by a person is also required.

Therefore, the driving controller 750 turns on the LED lamp 500. As the LED lamp 500 is turned on, as well as serving to illuminate the surroundings, the photocatalytic reaction is induced by the visible light emitted from the LED lamp 500, thereby decomposing pollutants to purify the air.

In addition, in the present embodiment, a UV LED 800 for continuously irradiating ultraviolet light of low illumination may be further provided, in this case, a photocatalytic reaction by the visible light of the LED lamp 500 and a UV LED continuously emitting ultraviolet light. Since the photocatalytic reaction by 800 occurs at the same time, the air can be purified efficiently.

Second Embodiment

In a second embodiment of the sensor or the like according to the present invention, the apparatus further includes a fan 900 for forcibly circulating internal and external air such as the sensor.

The fan 900 may be provided in the main body 100 and disposed inside the floodlight cover 200. Preferably, the air inside the floodlight cover 200 and the outside air may be disposed near the outlet portion provided between the main body 100 and the floodlight cover 200 to smoothly circulate.

At this time, the fan 900 may flow out the air purified by the photocatalytic reaction to the outside of the sensor and the like and introduce the contaminated external air into the inside of the sensor. Therefore, it is possible to prevent the purified air from stagnating inside the sensor or the like.

In addition, two or more fans 900 may be provided to facilitate the inflow and outflow of air.

Meanwhile, in the second embodiment of the sensor or the like according to the present invention, the control unit 700 includes a receiving unit 730 and a driving control unit 750.

The receiver 730 receives a motion detection signal generated by the motion detection unit 300, a daytime state signal generated by the illumination intensity detection unit 400, and a night state signal generated by the illumination intensity detection unit 400. .

The drive controller 750 controls the blinking of the LED lamp 500 and drives the fan 900.

At this time, the driving controller 750 turns on the LED lamp 500 and drives the fan 900 when the receiving unit 730 receives the motion detection signal while receiving the night signal.

In addition, the driving controller 750 drives only the fan 900 when the receiving unit 730 receives the motion detection signal while receiving the weekly state signal.

For example, suppose a person passes by around a sensor light during the day.

The daytime state signal is generated by the illuminance detector 400, and the motion detection signal is generated by the motion detector 300 and transmitted to the receiver 730.

Even if a person passes by during the day, there is no need to illuminate the surroundings of the sensor light, so it is not necessary to turn on the LED lamp 500, but it is necessary to purify the pollutants left by the person.

On the other hand, during the day, visible light by sunlight may be irradiated to the photocatalyst 600 to induce a photocatalytic reaction to purify the air without turning on the LED lamp 500.

In addition, in the present embodiment, a UV LED 800 may be further provided to continuously irradiate ultraviolet rays of weak illumination, and at this time, even if a sensor lamp is installed in the room and the sunlight is slightly weak, the photocatalyst by the visible light of sunlight Since the photocatalytic reaction by the reaction and the UV LED 800 continuously emitting ultraviolet light occurs at the same time, it is possible to efficiently purify the air.

Therefore, the driving controller 750 turns off the LED lamp 500 and drives only the fan 900 regardless of whether the receiver 730 receives the operation detection signal.

That is, during the day, the photocatalytic reaction is induced by using visible light of sunlight, so that pollutants can be purified without irradiation of visible light by the LED lamp 500, thereby reducing energy use.

In addition, even when the sensor is installed indoors and the irradiation of visible light by the sunlight is weak, the photocatalytic reaction is continuously induced by the ultraviolet light emitted by the UV LED 800, which is more efficient than using the LED lamp 500 only. Can purify the air.

In addition, by driving the fan 900 to smoothly circulate the purified air can further increase the effect of air purification.

As another example, suppose a person passes by around a sensor light at night.

A night state signal is generated by the illuminance detector 400, and a motion detection signal is generated by the motion detector 300 and transmitted to the receiver 730.

In this case, the role of lighting to illuminate the surroundings of the sensor, etc. is also necessary, and the role of deodorizing and / or purifying pollutants of odors left by humans is also required.

Therefore, the driving controller 750 turns on the LED lamp 500 and drives the fan 900. As the LED lamp 500 is turned on, the photocatalyst 600 reacts with visible light emitted from the LED lamp 500, and thus, may decompose pollutants to purify the air.

In addition, in the present embodiment, a UV LED 800 for continuously irradiating ultraviolet light of low illumination may be further provided, in this case, a photocatalytic reaction by the visible light of the LED lamp 500 and a UV LED continuously emitting ultraviolet light. Since the photocatalytic reaction by 800 occurs at the same time, the air can be purified efficiently.

In addition, by driving the fan 900 to smoothly circulate the purified air can further enhance the effect of air purification.

Third Embodiment

In the third embodiment of the sensor or the like according to the present invention, it is the same as the second embodiment further including a fan 900 for forcibly circulating the internal air and the outside air of the sensor or the like.

Meanwhile, in the third embodiment of the sensor or the like according to the present invention, the controller 700 may include a first timer 710, a second timer 720, a receiver 730, a timer controller 740, and a driving controller 750. ).

The first timer 710 generates a first on signal when the first reference time is set and is turned on. The first timer 710 is configured to maintain the lighting of the LED lamp 500 for a first reference time.

When the second reference time is set and the second timer 720 is turned on, the second timer 720 generates a second on signal. The second timer 720 is configured to drive the fan 900 for a second reference time.

At this time, the LED lamp 500 is only turned on for the first reference time by the first timer 710 and automatically turned off. The fan 900 is likewise driven only by the second timer 720 for a second reference time and automatically turned off.

The receiver 730 receives the motion detection signal generated by the motion detection unit 300, the daytime state signal generated by the illumination intensity detection unit 400, and the night state signal generated by the illumination intensity detection unit 400.

The timer controller 740 controls the first timer 710 and the second timer 720 according to the type of the signal received by the receiver 730.

At this time, when the reception unit 730 receives the motion detection signal in the state where the reception unit 730 receives the night state signal, the timer control unit 740 turns on both the first timer 710 and the second timer 720, and receives the reception unit ( In a state in which 730 receives the daytime state signal, when the motion detection signal is received, only the second timer 720 is turned on.

The driving controller 750 turns on the LED lamp 500 for a first reference time when the first on-signal generated by the first timer 710 is received, and generates the second by the second timer 720. When the on signal is received, the fan 900 is driven for the second reference time.

Here, the first reference time and the second reference time may be arbitrarily set.

Preferably, the second reference time is preferably longer than the first reference time. At this time, even if the LED catalyst 500 is turned off after the first reference time has elapsed and the photocatalytic reaction for purifying the air is completed, the fan 900 is driven until the second reference time has elapsed. Can be exhausted and the air being purified is not stagnant.

On the other hand, the exemplary situation in the third embodiment is the same as in the second embodiment except that the driving time of the fan 900 is longer than the lighting time of the LED lamp 500, detailed description thereof will be omitted.

Embodiments described as examples for the purposes of the present invention are merely one embodiment in which the present invention is embodied, and may be combined in various forms to realize the gist of the present invention. Therefore, the present invention is not limited to the above-described embodiments, and various changes can be made by those skilled in the art without departing from the gist of the present invention as claimed in the following claims. It will be said that there are technical features of the present invention to the extent.

100: main body
200: floodlight cover
300: motion detection unit
400: illuminance detection unit
500: LED lamp
600: photocatalyst
700: control unit
710: first timer
720: second timer
730: receiver
740: timer control unit
750: drive control unit
800: UV LED
900: fan

Claims (9)

As a sensor which performs the function as lighting and the function to purify air at the same time,
main body;
A translucent cover coupled to the main body and having a photocatalyst applied to an inner surface thereof;
A motion detector provided in the main body and configured to generate a motion detection signal by detecting a motion of the body;
An illumination sensor detecting the illumination around the main body to generate a daytime state signal or a nighttime state signal;
An LED lamp provided in the main body to illuminate a predetermined area around the main body;
A fan provided in the main body and forcibly circulating internal air and external air such as the sensor;
A controller for controlling the blinking of the LED lamp and controlling the driving of the fan; And
It is provided in the main body, and includes a UV LED lamp for irradiating light in the ultraviolet region,
The control unit may include: a reception unit receiving the motion detection signal generated by the motion detection unit, the daytime state signal generated by the illuminance detection unit, and the night state signal generated by the illuminance detection unit, and the motion detection signal And receiving a driving control unit for controlling the blinking of the LED lamp and the operation of the fan according to the day or night,
The driving controller may be configured to turn on the LED lamp and drive the fan to purify air when the reception unit receives the night signal, and the receiver receives the day signal. In a state in which the motion detection signal is received, by driving only the fan to purify the air,
The photocatalyst is a sensor, characterized in that the photocatalyst to purify the air in response to light in the ultraviolet region and the visible light region.
The method of claim 1,
A sensor having an air purifying function, wherein an inflow and outflow portion capable of inflow and outflow of air is provided between the main body and the floodlight cover.
The method of claim 1,
The sensor lamp provided on the main body, further comprising a UV LED lamp for irradiating light in the ultraviolet region.
The method of claim 3,
The UV LED lamp,
Sensor light characterized by continuously irradiating light in the ultraviolet region.
delete delete delete The method of claim 1,
The control unit,
A first timer configured to generate a first on-signal when the first reference time is set and is turned on;
A second timer configured to generate a second on signal when a second reference time is set and is turned on; And
In the state in which the receiver receives the night state signal, upon receiving the motion detection signal, both the first timer and the second timer are turned on, and in the state in which the receiver receives the daytime state signal, the motion detection. And a timer controller for turning on only the second timer when receiving a signal.
The drive control unit,
The LED lamp is turned on for the first reference time when the first on signal generated by the first timer is received, and the second lamp is turned on for the second reference time when the second on signal generated by the second timer is received. Sensors for driving a fan.
The method of claim 8,
And the second reference time is longer than the first reference time.

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