JP2013157098A - Illuminating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illuminating device that can prevent a phenomenon that one of right and left lamps is bright and the other is dark, or a phenomenon that only one lamp emits light even when a straight pipe type LED lamp to which an illuminance sensor and a human detection sensor are provided is attached to a two-lamp type lighting fixture, for example.SOLUTION: In the illuminating device, an illuminance sensor and a human detection sensor are attached only to one lamp, and detection results of the sensors are transmitted to the other lamp. Thereby, brightness of right and left lamps can be controlled to be accorded, and the right and left lamps can be simultaneously lightened or extinguished. In addition, by using short-range communication, such as inductive radio, for communication means, crosstalk and noise to other devices can be prevented, and good communication can be achieved.

Description

  The present invention relates to a lighting device that controls all the altitudes of a plurality of lamps to be constant.

In recent years, LED lamps using LED elements excellent in power saving as light sources have been actively used due to increasing environmental awareness. Particularly recently, straight-tube LED lamps that can be replaced as they are in lighting apparatuses using fluorescent lamps are rapidly spreading.

In addition, by using an illuminance sensor to install a lighting device or lighting system that can automatically adjust the light intensity, which controls the total illuminance of the external light and the irradiation light from the lighting device, the power consumption of the lighting device is reduced. Things have also been done.

For example, in Patent Document 1, a sensor-integrated lighting fixture is configured by incorporating an illuminance sensor in a fixture main body together with a control unit. There is disclosed a lighting control system in which a plurality of sensor-integrated lighting fixtures are installed in one room and the brightness of the room is kept substantially constant.

JP 2010-040187 A

However, Patent Document 1 has the following problems. That is, when a straight tube type LED lamp integrated with an illuminance sensor is attached to a two-lamp type lamp, a phenomenon occurs in which one of the left and right lamps is bright and the other is dark.

This is due to variations in the illuminance sensor attached to each LED lamp and the electronic components that make up the sensor circuit, and the difference in the amount of light incident on the sensor due to the different sensor positions. The measured illuminance value by the reflected light of the LED lamp B and the actually measured illuminance value by the reflected light from the irradiated surface of the other LED lamp B are considered to be relatively different.

That is, since this measured illuminance value is different, the actual measured illuminance value of the LED lamp A is high and the measured illuminance value of the LED lamp B is low with the target illuminance value as a boundary, so that the lamp output of the LED lamp A decreases, The lamp output of the LED lamp B increases. Since one increases and the other decreases, the total illuminance on the irradiated surface may remain substantially constant. As a result, the measured illuminance values of the LED lamp A and the LED lamp B do not change, the lamp output of the LED lamp A continues to decrease, and the lamp output of the LED lamp B continues to increase. For this reason, it is considered that a phenomenon occurs in which one of the two LED lamps is bright and the other is dark. In appearance, the lamp on the dark side looks defective, which can be a problem.

The lighting device of the invention is attached to any one lamp body of a plurality of lamps, and detects the external environment detection means for detecting the external environment of the illumination area, and the detection result of the external environment detection means, A short-range communication means for transmitting to a lamp to which no external environment detection means is attached, and lighting and / or dimming degree of the lamp to which no external environment detection means is attached based on the communication result of the short-range communication means It is characterized by comprising a lighting control means for controlling the lighting.

As an external environment detection means, for example, an illuminance sensor that detects the illuminance of the irradiation surface irradiated by the lamp, a human sensor that detects the presence or absence of a human in the illumination area, and a temperature detection that detects the temperature in the illumination area Various sensors such as a sensor, a humidity detection sensor that detects humidity in the illumination area, and a vibration sensor that reacts to a predetermined magnitude of vibration can be used.

According to the present invention, since the external environment detection means is attached to only one of the lamps, there is no actual situation that the detection result of one detection means is different from the detection result of the other detection means. For this reason, for example, a phenomenon in which one of the two lamps is bright and the other is dark, or a phenomenon in which only one lamp is lit does not occur.

The communication range of the short-range communication means is within 100 cm, and for example, induction radio or ultrasonic waves can be used. In the case of using induction radio, radio waves can be distributed only in the vicinity of the loop antenna by limiting the communication range to a close distance, and it is possible to prevent interference or interference with other communications.

According to the present invention, since the detection sensor is provided in only one lamp among the plurality of lamps, there is no difference in brightness between the lamps as a result of variations in irradiation area and accuracy between the sensors.

In addition, since guided radio is used as the proximity communication means, the directivity is not strong compared to, for example, infrared rays, so that there is no need to worry about misalignment of the optical axis. Further, since the communication range can be made very small compared to the radio wave system, signals transmitted from the main lamps can be prevented from interfering.

Schematic block diagram of the illumination device of the first embodiment Hardware configuration diagram related to the control of the lighting apparatus of the first embodiment Functional block diagram of the illumination device of the first embodiment The schematic block diagram of the illuminating device of 2nd Embodiment. Functional block diagram of the illumination device of the second embodiment

  Preferred embodiments of the present invention will be described below with reference to the drawings. Note that this embodiment is merely an example, and the present invention is not limited to this. In addition, the illuminating device of this embodiment can be used in various places, such as a home, an office, the outdoors, a warehouse, a factory.

FIG. 1 is a schematic configuration diagram of a lighting device 100 according to the first embodiment. The illumination device according to the present embodiment includes two LED lamps 101 (101A and 101B) attached to a lamp 104, an illuminance sensor 102, a human sensor 103, an induction wireless transmitter 104, and an induction wireless receiver 105. ing.

Although the lamp of this embodiment uses LED lamps 101A and 101B, it is not particularly limited to this. For example, various lamps such as an organic EL, an incandescent lamp, a halogen lamp, and a fluorescent lamp can be used. In addition, although a two-lamp type lamp in which two straight tube lamps are connected in parallel is used, a configuration in which three to four straight tube lamps are connected in parallel may be used.

Inside the translucent cover of the LED lamp, an LED substrate on which LED elements are mounted, a power supply substrate, and a support substrate on which the LED substrate is mounted are arranged, and a base is connected to both ends thereof. An illuminance sensor 102, a human sensor 103, and an electronic component are mounted on the base on one end side, and a sensor substrate for outputting the detected illuminance is incorporated. The sensors 102 and 103 may be attached anywhere within the lamp, and need not be limited to the base.

The illuminance sensor 102 has a function as an illuminance detection unit that detects the illuminance of the irradiation surface irradiated by the LED lamp. The dimming degree of the lamp is feedback-controlled so that the reflected light from the irradiated surface is within a preset target illuminance range, so that the irradiated surface is kept at a constant brightness.

The illuminance sensor 102 is attached to the main body of one of the two LED lamps 101A, and the illuminance sensor and the main body of the LED lamp 101A are integrally configured so that the lamp can be easily replaced. Be able to.

The LED lamp 101A to which the illuminance sensor 2 is attached becomes the main lamp, and the LED lamp 102A to which the illuminance sensor is not attached becomes the sub lamp. Note that in the case of an illumination device including three or more LED lamps, the illuminance sensor 102 is attached to any one of the LED lamps. In this case, the LED lamp to which the illuminance sensor is attached becomes the main lamp, and the other LED lamps become the sub lamps.

The human sensor 103 has a function as a human detection unit that detects the presence / absence of a human. A commercially available sensor used for entrance lighting in general households can be used. In this embodiment, a pyroelectric element that detects infrared rays emitted from a human body is provided, and the presence or absence of a person in the detection area is detected from a change in heat dose according to the movement of the person. However, the configuration of the human sensor is not limited to this. For example, an ultrasonic sensor or a vibration sensor may be used.

The induction radio transmitter 104 is an electromagnetic induction radio having a transmission loop coil antenna. The induction radio receiver 105 is an electromagnetic induction radio having a reception loop coil antenna. The induction wireless transmitter 104 and the induction wireless receiver 105 have a function as short-range communication means, and the communication range is within 100 cm. The induction radio is a transmission method using electromagnetic induction of a high frequency magnetic field generated around the induction wire by a high frequency current flowing through the induction wire (electric wire).

Next, control-related hardware of the lighting device according to the present embodiment will be described. FIG. 2 is a schematic configuration diagram of the control system hardware of the lighting apparatus according to the present embodiment. In the main lamp and the sub lamp of the present embodiment, a CPU (Central Processing Unit) 201, a memory 202, and a driver 203 corresponding to each driving unit are connected by an internal bus. The memory 202 is, for example, a ROM (Read
It is composed of an only memory (RAM), a random access memory (RAM), and the like.

The CPU 201 uses, for example, a RAM as a work area, executes a program stored in the ROM, and receives data and instructions from the driver 203 and an operation unit such as a remote controller (not shown) based on the execution result. Then, for example, the operation of each driving unit such as an LED lamp is controlled. The memory 202 stores various programs for controlling the lamp, initial values, and the like, and can set a target illuminance and the like.

The illuminance sensor 102 measures the illuminance of the irradiated surface to be irradiated and outputs it to the CPU 201. The CPU 201 controls the illuminance value on the irradiated surface to be constant by converting the illuminance value (measured illuminance value) detected by the illuminance sensor 102 into a lamp output. For example, when the reflected light component due to external light increases, the light output of the lamp is lowered, and when the reflected light component due to external light decreases, the light output of the lamp is increased, and the irradiation area becomes constant brightness.

When detecting the infrared ray emitted from the human body, the human sensor 103 outputs a detection signal to the CPU 201 that there is a person in the target area. Receiving the human body detection signal, the CPU 201 turns on the lamp.

Note that an illuminance sensor may be provided in the human sensor 103 as an internal organ or a separate body. In this case, even if the human sensor 103 receives the human body detection signal, it is not necessary to turn on the lamp if the result of the illuminance sensor is equal to or greater than a predetermined illuminance.

Next, the effect | action of the illuminating device of this embodiment is demonstrated using FIG. FIG. 3 is a functional block diagram of the illumination device of the present embodiment.

The brightness control unit 301 that controls the brightness of the illumination area by calculating the dimming degree using the illuminance sensor 102 will be described. The brightness control unit 301 includes an illuminance detection unit 302 that detects illuminance, a target illuminance storage unit 303 that stores a preset target illuminance value (target illuminance value), and a dimming degree calculation that calculates a dimming degree Part 304 is provided.

The illuminance detection unit 302 detects the illuminance of the irradiated surface by the illuminance sensor 102 and transmits the detection result to the dimming degree calculation unit 304.

The dimming degree calculation unit 304 determines whether or not the actually measured illuminance value received from the illuminance detection unit matches the target illuminance value. Then, when the measured illuminance value exceeds the target illuminance, the dimming degree is lowered, and when the measured illuminance value falls below the target illuminance, the dimming degree is increased, so that the dimming degree is feedback-controlled so that the measured illuminance value matches the target illuminance. The dimming degree is calculated by such feedback control so that the illuminance of the irradiated surface is kept constant. The calculated dimming degree is transmitted to the main lamp lighting unit 305 and the guide wireless transmission unit 306.

The main lamp lighting unit 305 lights the main lamp 101A according to the dimming degree calculated by the dimming degree calculating unit 304. The guided wireless transmission unit 306 transmits the dimming degree calculated by the dimming degree calculating unit 304 to the guided wireless receiving unit 307 of the slave lamp 101B using guided radio.

The induction wireless reception unit 307 that has received the dimming degree information transmits the dimming degree information to the slave lamp lighting unit 308. The sub lamp lighting unit 308 lights the sub lamp 101B according to the received dimming degree.

Next, the human detection part 310 which detects the presence or absence of a human body is demonstrated. The human detection unit 310 detects the presence / absence of a person using a human sensor, and when detecting that a person is present, transmits a human body detection signal to that effect to the main lamp lighting unit 305 and the guide wireless transmission unit 306.

The main lamp lighting unit 305 that has received the human body detection signal lights the main lamp 101A.

Receiving the human body detection signal, the guide wireless transmission unit 306 transmits a slave lamp lighting signal for lighting the slave lamp 101B to the guide wireless reception unit 307 of the slave lamp. The induction radio receiving unit 307 that has received the slave lamp lighting signal transmits the slave lamp lighting signal to the slave lamp lighting unit 308. The slave lamp lighting unit 308 turns on the slave lamp 308 in response to the slave lamp lighting signal.

As described above, in the illumination device of the present embodiment, the illuminance sensor 102 is provided only for one lamp 101A of the two lamps 101A and 101B. For this reason, as a result of variations in irradiation area and accuracy between a plurality of illuminance sensors, one lamp is dark, the other lamp is bright, and there is no difference in brightness. Since the two lamps are lit at the same dimming level, they always have the same brightness.

In the lighting device of the present invention, the human sensor 103 is provided in only one lamp 101A of the two lamps 101A and 101B. For this reason, as a result of variations in detection areas and accuracy between a plurality of human sensors, only one lamp is not turned on and the other is not turned off.

In addition, since guided radio that does not have high directivity is used as the transmission means for the main lamp and the sub lamp, there is no need to worry about misalignment of the optical axis. Since the communication range can be made very small compared to the radio wave system, the communication range can be limited to only a limited area around the main lamp. Even if the main lamps communicating at the same frequency are relatively close, each main lamp It is possible to prevent the signal transmitted from the crosstalk.

In the present embodiment, only the illuminance sensor and the human sensor have been described, but various other sensors can be used. For example, various sensors such as a temperature detection sensor that detects the temperature in the illumination area, a humidity detection sensor that detects the humidity in the illumination area, and a vibration sensor that reacts to a predetermined magnitude of vibration can be used.

These sensors are also attached only to the main lamp, and the result of this sensor is transmitted to the sub lamp. As a result, it is possible to prevent a situation in which lighting and dimming of the main lamp and the sub lamp are different as described above.

It should be noted that an illuminance sensor may be built in or separately provided in the human sensor so that it does not light up even if a person is detected if the brightness is below a certain level. In this case, when the human detection unit 310 receives the human body detection signal and the actually measured illuminance does not reach the predetermined target illuminance, the main lamp lighting signal is transmitted to the main lamp lighting unit 305.

Next, a lighting apparatus according to a second embodiment will be described with reference to FIG. Only portions different from the first embodiment will be described, and description of overlapping portions will be omitted. FIG. 4 shows a schematic configuration diagram of the illumination device 400 of the present embodiment.

The illumination device 400 of this embodiment includes a plurality of LED lamps 401 (401A, 401B), an illuminance sensor 402, and a human sensor 403 attached to a lamp 404. This embodiment is different from the first embodiment in that an illuminance sensor 402 and a human sensor 403 are attached to a lamp 404.

Next, the effect | action of the illuminating device of this embodiment is demonstrated using FIG. FIG. 5 is a functional block diagram of the illumination device of the present embodiment.

A brightness control unit 401 that controls the brightness of the illumination area by calculating the dimming degree using the illuminance sensor 402 will be described. The illuminance detection unit 502 detects the illuminance of the irradiated surface by the illuminance sensor 402 and transmits the detection result to the dimming degree calculation unit 504.

The dimming degree calculation unit 504 determines whether or not the actually measured illuminance value received from the illuminance detection unit 502 matches the target illuminance value, and calculates the dimming degree so that the illuminance of the irradiated surface is kept constant. . The calculated dimming degree is transmitted to the guided wireless transmission units 507A and 507B of the lamps 401A and 401B.

When the guide radio reception units 507A and 507B of the lamps 401A and 401B receive the dimming degree information, the information is transmitted to the lamp lighting units 508A and 508B. The lamp lighting units 508A and 508B light the lamps 401A and 401B according to the received dimming degree.

The result of the sensor 402 provided in the lamp 404 is transmitted to the two lamps 401A and 401B, and the lighting and / or dimming degree of the lamp is controlled according to the sensor result. Therefore, one of the two lamps 401A and 401B is bright and the other is not dark.

Next, the human detection part 510 which detects the presence or absence of a human body is demonstrated. The human detection unit 510 detects the presence / absence of a person using a human sensor, and transmits a human body detection signal to that effect to the guided wireless transmission unit 506 when detecting that there is a person.

The guided wireless transmission unit 506 that has received the human body detection signal transmits the human body detection signal to the guided wireless reception units 507A and 507B of the lamps 401A and 401B.

The induction wireless reception units 507A and 507B that have received the human body detection signal transmit the received lamp lighting signals to the lamp lighting units 508A and 508B.

The lamp lighting units 508A and 508B receive the lamp lighting signal and light the lamps 401A and 401B. Therefore, when the human sensor of the lamp reacts to turn on the lamp, the phenomenon that one lamp is turned on and the other lamp is not turned off does not occur.

DESCRIPTION OF SYMBOLS 100: Illuminating device, 101: Lamp, 101A: Main lamp, 101B: Secondary lamp, 102: Illuminance sensor, 103: Human sensor, 104: Inductive radio transmitter, 105: Inductive radio receiver

Claims (5)

An illumination device having a plurality of lamps attached to an illumination lamp,
An external environment detection means that is attached to any one of the plurality of lamps and detects an external environment of the illumination area;
Short-range communication means for communicating a detection result of the external environment detection means to a lamp to which the external environment detection means is not attached;
A lighting device comprising a lighting control means for controlling lighting and / or dimming degree of a lamp to which an external environment detection means is not attached based on a communication result of the short-range communication means. An illumination device having a plurality of lamps attached to an illumination lamp,
An external environment detection means attached to the illumination lamp, for detecting the external environment of the illumination area;
Short-range communication means for communicating the detection result of the external environment detection means to the plurality of lamps;
An illumination device comprising a lighting control unit that controls lighting and / or dimming degree of the plurality of lamps based on a communication result of the short-range communication unit. The external environment detection means is an illuminance sensor that detects the illuminance of the irradiation surface irradiated by the lamp,
A dimming degree calculating means for calculating a dimming degree of the plurality of lamps so that a detection result of the illuminance sensor falls within a preset target illuminance range and the dimming degrees of all the plurality of lamps are substantially the same; Prepared,
The near field communication means transmits the dimming degree calculated by the dimming degree calculating means to the lamp,
The lighting device according to claim 1, wherein the lighting control unit turns on the lamp that has received the dimming degree according to the dimming degree. The external environment detection means is a human sensor that detects the presence or absence of a human body in an illumination area,
When the human sensor detects that a human is present, the short-range communication means transmits a human body detection result to the lamp,
The lighting device according to any one of claims 1 to 3, wherein the lighting control unit lights a lamp that has received a human body detection result. The lighting device according to claim 1, wherein the short-range communication unit includes a guided wireless transmission unit that transmits using guided wireless and a guided wireless reception unit that receives using guided wireless.

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