Lighting System

Abstract

To provide a lighting system which simply realizes a lighting environment with little discomfort in a specified area by causing a plurality of lighting fixtures to operate in conjunction with each other in response to a detection signal detected by a human sensor. [Solution] A lighting system including a first lighting fixture 100 having a motion sensor 120 and a first light source, a second lighting fixture having a second light source, and a sensor control power supply unit 200, in which the first lighting fixture 100 generates a PWM dimming signal for turning on or off the first light source 110 and the second light source in conjunction with each other in response to a detection signal from the motion sensor 120. The sensor control power supply unit 200 supplies power to the first lighting fixture 100 for turning on or off the first light source in response to the PWM dimming signal from the first lighting fixture 100, and transfers the PWM dimming signal to the second lighting fixture, so that the second lighting fixture turns on or off the second light source in conjunction with the first light source in response to the transmitted PWM dimming signal.

Description

[Technical field]

[0001] The present invention relates to a lighting system, and more particularly to a lighting system in which a plurality of lighting fixtures work together to fade in and fade out in response to a detection signal detected by a motion sensor, for example. [Background technology]

[0002] Conventionally, lighting systems equipped with a motion sensor and a lighting fixture that lights up in response to a detection signal from the motion sensor have been known. In such lighting systems, when the motion sensor detects the presence of a person, the lighting fixture automatically "turns on" and lights up, and after a certain time has elapsed, the lighting fixture automatically "turns off" and turns off. These lighting systems are often installed in entranceways, corridors, etc.

[0003] Furthermore, as an invention relating to a lighting fixture that uses a detection signal from a motion sensor to control its lighting, Patent Document 1 discloses the configuration of a lighting fixture that adjusts the amount of illumination light in response to a detection signal from a motion sensor.

[0004] The lighting fixture described in Patent Document 1 comprises a box-shaped fixture body, a light source unit that is mounted in the fixture body and emits illumination light forward, and a control device that controls the light source unit in response to the detection results of a human presence sensor. The control device is configured to control the light source unit so that the amount of illumination light is smaller than a reference value when the motion sensor does not detect the presence of a person, and the amount of illumination light is equal to the reference value when the motion sensor detects the presence of a person. That is, the lighting device described in Cited Document 1 switches the light amount of the light source unit between two levels depending on the detection result of the motion sensor. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent Publication No. 7266239 Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, in large areas where people pass sporadically, turning off all lighting at night can pose a safety issue, while leaving the lighting on all the time is undesirable from an energy conservation perspective. Furthermore, to illuminate a wide area where people pass sporadically, multiple lighting fixtures are required, but if each lighting fixture is equipped with a motion sensor and turned on / off individually (or if the light output of each lighting device is switched individually), the lighting environment in the area will become unnatural, making passersby feel uncomfortable.

[0007] While proceeding with the product development of a lighting system capable of illuminating wide areas such as those described above without creating an awkward feeling, the inventors of the present application came up with the idea that if multiple lighting fixtures were to work together in response to a detection signal detected by a human presence sensor, and fade-in the brightness to a predetermined dimming level, or fade-out from a lit state, it would be possible to provide a lighting environment that ensures safe passage without causing discomfort to passersby, and also to achieve energy savings. However, currently, if multiple lighting devices are to work together to fade in on or fade out in response to detection signals detected by motion sensors, a lighting control system that controls the entire system must be introduced, and this cannot be achieved with a standalone configuration.

[0008] The present invention has been made in consideration of the above-mentioned technical problems, and its purpose is to provide a lighting system in which a plurality of general dimmable lighting fixtures operate in coordination with each other in response to a detection signal detected by a human presence sensor, easily creating a lighting environment that is less uncomfortable for a specified area. [Means for solving the problem]

[0009] A first aspect of the present invention made to solve the above-mentioned problems is a lighting system comprising a first lighting fixture having a human presence sensor and a first light source, a second lighting fixture having a second light source, and a sensor control power supply unit electrically connected to each of the first lighting fixture and the second lighting fixture, wherein the human presence sensor is powered by sensor power supplied from the sensor control power supply unit and is configured to detect the presence or absence of a person in a predetermined area and output a detection signal indicating the detection content, the first lighting fixture acquires the detection signal output by the human presence sensor, and generates a PWM dimming signal corresponding to the content of the acquired detection signal for fading in the first lighting fixture and the second lighting fixture in conjunction with each other to a brightness of a predetermined dimming level, or for fading out the first lighting fixture and the second lighting fixture that are lit at a predetermined brightness, and the sensor control power supply unit has a lighting device that receives the PWM dimming signal transmitted from the PWM signal generation unit and supplies lighting power to the first lighting fixture for fading-in the first light source to a brightness of a predetermined dimming level in accordance with the received PWM dimming signal, or for fading-out the first light source that is lit at a predetermined brightness, and transmits the received PWM dimming signal to the second lighting fixture, and the second lighting fixture, upon receiving the PWM dimming signal transmitted from the sensor control power supply unit, is configured to fade-in the second light source in conjunction with the first light source to a brightness of a predetermined dimming level, or to fade-out the second light source that is lit at a predetermined brightness, in conjunction with the first light source.

[0010] The first aspect of the present invention provides a lighting system having the above configuration, in which a plurality of lighting fixtures (first lighting fixture, second lighting fixture) are linked together in response to a detection signal detected by a motion sensor to fade in and fade out to a predetermined dimming level. Therefore, for example, by installing the lighting system of the first aspect of the present invention in an area where people pass sporadically, a lighting environment that is less uncomfortable for this area is provided. Also, in the first aspect of the present invention, a plurality of lighting fixtures (first lighting fixture, second lighting fixture) are linked to fade in and fade out in response to a PWM dimming signal that is common in lighting control. That is, according to the first aspect of the present invention, a plurality of common dimming type lighting fixtures can be linked to operate.

[0011] It is also desirable that a plurality of the second lighting devices are provided, each of which has a PWM dimming power supply unit that receives a PWM dimming signal transmitted from a PWM signal generating unit of the sensor control power supply unit and supplies lighting power to the second light source corresponding to the content of the received PWM dimming signal.

[0012] A second aspect of the present invention is a lighting system comprising a dedicated sensor device having a human presence sensor, a plurality of lighting fixtures, and a sensor control power supply unit electrically connected to the dedicated sensor device and each of the plurality of lighting fixtures, wherein the lighting fixtures have a light source, the human presence sensor is driven by sensor power supplied from the sensor control power supply unit, and is adapted to detect the presence or absence of a person in a predetermined area and output a detection signal indicating the detected content, and the dedicated sensor device acquires the detection signal output by the human presence sensor, and controls the plurality of lighting fixtures to fade in so as to achieve a predetermined dimming level in conjunction with the content of the acquired detection signal, or to fade in so as to achieve a predetermined dimming level in conjunction with the content of the acquired detection signal in accordance with the content of the detected detection signal. the sensor control power supply unit is configured to generate a PWM dimming signal for causing a plurality of the lighting fixtures, which are lit at a predetermined brightness, to fade out or turn off in coordination with each other, and to transmit the PWM dimming signal to the sensor control power supply unit, and upon receiving the PWM dimming signal transmitted from the PWM signal generation unit, the sensor control power supply unit transmits the received PWM signal to the plurality of the lighting fixtures, and upon receiving the PWM dimming signal transmitted from the sensor control power supply unit, the plurality of the lighting fixtures are configured to fade in the light sources to a brightness of a predetermined dimming level, or fade out or turn off the light sources, which are lit at a predetermined brightness, in coordination with each other.

[0013] In the second aspect of the present invention, as in the first aspect described above, a lighting system is provided in which a plurality of lighting fixtures work together in response to a detection signal detected by a motion sensor to fade in and fade out to a predetermined dimming level. Therefore, for example, if the lighting system of the second aspect of the present invention is installed in an area where people pass sporadically, a lighting environment that is less uncomfortable for this area is provided. Effect of the Invention

[0014] According to the present invention, a lighting system can be provided in which a number of conventional dimmable lighting fixtures operate in coordination with each other in response to a detection signal detected by a human presence sensor, thereby easily creating a lighting environment that is less uncomfortable for a specified area. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a schematic diagram for explaining a configuration of a lighting system according to a first embodiment of the present invention. [Diagram 2] FIG. 1 is a schematic diagram illustrating the configuration of a sensor-equipped lighting fixture that constitutes a lighting system according to a first embodiment of the present invention, where (a) is a schematic diagram showing a side view of the sensor-equipped lighting fixture, and (b) is a schematic diagram showing a bottom view of the sensor-equipped lighting fixture. [Diagram 3] 1 is a functional block diagram of a lighting system according to a first embodiment of the present invention. [Figure 4] 1A and 1B are schematic diagrams showing the appearance of a sensor control power supply unit constituting a lighting system according to a first embodiment of the present invention, where (a) is a schematic diagram showing a plan view of the sensor control power supply unit, and (b) is a schematic diagram showing a side view of the sensor control power supply unit. [Diagram 5] FIG. 11 is a schematic diagram for explaining the configuration of a lighting system according to a second embodiment of the present invention. [Figure 6] 5A and 5B are schematic diagrams for explaining the configuration of a sensor-dedicated device that constitutes a lighting system of a second embodiment of the present invention, where (a) is a schematic diagram showing the side of the sensor-dedicated device, and (b) is a schematic diagram showing the bottom of the sensor-dedicated device. [Figure 7] FIG. 11 is a functional block diagram of a lighting system according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Lighting System of First Embodiment Hereinafter, a lighting system according to a first embodiment of the present invention will be described with reference to the drawings.

[0017] First, the overall configuration of a lighting system according to a first embodiment will be described with reference to FIG.

[0018] Here, FIG. 1 is a schematic diagram for explaining the configuration of the lighting system of the first embodiment.

[0019] As shown in the figure, the lighting system of the first embodiment has a sensor-equipped lighting fixture (first lighting fixture) 100 equipped with a motion sensor 120, a plurality of general lighting fixtures (second lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340)), and a sensor-controlled power supply unit 200. The sensor-controlled power supply unit 200 is electrically connected to the sensor-equipped lighting fixture 100 and is also electrically connected to each of the plurality of general lighting fixtures. The sensor-equipped lighting fixture 100 and general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) are installed in an area of, for example, about 10 m×10 m.

[0020] The sensor-equipped lighting fixture 100 is a downlight equipped with an LED lighting unit (hereinafter simply referred to as the "lighting unit") 110 having a light source (first light source (LED module 112)), a human sensor 120, and a PWM signal generating unit 130, and is installed, for example, under the eaves. The lighting unit 110 receives LED lighting power (lighting power) from the sensor control power supply unit 200, and fades in the light source to light up to a dimming level corresponding to the supplied LED lighting power, or fades out the light source that is lit at a predetermined brightness. The human presence sensor 120 is driven by sensor power supplied from the sensor control power supply unit 200, and detects the presence or absence of a person in a predetermined area and outputs a detection signal (detection information) indicating the detected content.

[0021] The PWM signal generation unit 130 adjusts the detection information output by the human presence sensor 120, generates a PWM dimming signal corresponding to the detection information, and transmits the PWM dimming signal to the sensor control power supply unit 200 and other general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340). Specifically, the PWM signal generating unit 130 acquires (receives) a detection signal (detection information) output by the motion sensor 120, generates a PWM dimming signal corresponding to the acquired detection signal, and transmits the PWM dimming signal to the sensor control power supply unit 200. As will be described below, the sensor control power supply unit 200 has a function of relaying and transmitting the received PWM dimming signal to the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340).

[0022] The sensor control power supply unit 200 supplies power to the human sensor 120 and the PWM signal generating unit 130 . The sensor-controlled power supply unit 200 also transmits, to the LED lighting unit 110 of the sensor-equipped lighting fixture 100, LED lighting power (lighting power) corresponding to the PWM dimming signal received from the sensor-equipped lighting fixture 100. Furthermore, the sensor control power supply unit 200 transmits (transfers) the received PWM dimming signal to the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340). That is, the sensor control power supply unit 200 relays the PWM dimming signal transmitted by the PWM signal generating unit 130, and transmits the received PWM dimming signal to the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340). This PWM dimming signal includes a fade signal (feed-in light-on signal, fade-out light-off signal) and a dimming signal.

[0023] All of the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) are LED lighting fixtures equipped with a light source (second light source (LED module)), and are controlled by a PWM dimming signal transmitted from the PWM signal generating unit 130, so that the light source is turned on and off in conjunction with the sensor-equipped lighting fixture 100.

[0024] Specifically, the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) receive a PWM dimming signal transmitted from PWM signal generating unit 130 via sensor power supply unit 200, and in response to the content of the received PWM dimming signal, work in conjunction with sensor-equipped lighting fixture 100 to fade-in the light source to the same dimming level as sensor-equipped lighting fixture 100, or fade-out the light source that is on at a specified brightness.

[0025] PWM dimming control is the most common and widespread lighting control, and can be linked with various lighting fixtures. In the example shown in Fig. 1, lighting fixture 310 is a pendant-type base lighting fixture, lighting fixture 320 is a line-type base lighting fixture, lighting fixture 330 is a spotlight, and lighting fixture 340 is a square-type base lighting fixture, but this is not particularly limited. The general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) may be any type of lighting fixture as long as the light source can be turned on and off in conjunction with the sensor-equipped lighting fixture 100. In the illustrated example, the number of general lighting fixtures linked to the sensor-equipped lighting fixture 100 is "four", but the number of general lighting fixtures can be appropriately designed.

[0026] 100 Lighting Devices with Sensors Next, the configuration of the sensor-equipped lighting fixture 100 of the lighting system of the first embodiment will be described with reference to FIGS. 2 and 3. FIG. Here, Fig. 2 is a schematic diagram for explaining the configuration of a sensor-equipped lighting fixture constituting the lighting system of the first embodiment, and Fig. 3 is a functional block diagram of the lighting system of the first embodiment of the present invention.

[0027] As described above, the sensor-equipped lighting fixture 100 is a downlight that includes the lighting unit 110, the motion sensor 120, and the PWM signal generating unit . 2, the lighting unit 110 includes a heat sink 111, an LED module 112 as a light source, and a generally bowl-shaped reflector 114. The LED module 112 is attached to one end (lower end) of the heat sink 111. In the drawing, reference numeral 113 denotes a trim, and reference numeral 115 denotes an attachment spring.

[0028] The LED module 112 receives LED lighting power from the sensor control power supply unit 200, and fades in to light up to a dimming level corresponding to the supplied LED lighting power, or fades out from a state in which the LED module 112 is lit up at a predetermined dimming level according to the LED lighting power.

[0029] The human presence sensor 120 is an infrared sensor that is installed on the lower end side of the lighting unit 110 and radially outward from the reflector 114, and detects the presence or absence of a person in the area below the sensor-equipped lighting fixture 100. When the human presence sensor 120 detects the presence of a person in the area below the sensor-equipped lighting fixture 100, it transmits a detection signal (sensor ON signal) indicating the presence of a person to the PWM signal generating unit 130 (see FIG. 3). On the other hand, if the human presence sensor 120 does not detect the presence of a person in the area below the sensor-equipped lighting fixture 100, it sends a detection signal (sensor OFF signal) to the PWM signal generating unit 130 indicating that no person is present (see FIG. 3).

[0030] In the first embodiment, an infrared sensor that detects infrared rays emitted from a human body is used as the human sensor 120, but the present invention is not limited to this. The human presence sensor 120 may be configured with a sensor other than an infrared sensor (an ultrasonic sensor, a microwave sensor, or a dual sensor (a sensor that combines an infrared sensor and a microwave sensor)).

[0031] The PWM signal generating unit 130 is composed of a specially designed circuit board and is installed, for example, at a position above the human presence sensor 120 in the sensor-equipped lighting fixture 100, and is designed to operate with a certain amount of power supplied from the sensor control power supply unit 200. The PWM signal generating unit 130 then acquires the detection signal output by the human presence sensor 120, and generates a PWM dimming signal corresponding to the content of the acquired detection signal for operating the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" in conjunction with each other. Moreover, the PWM signal generating section 130 transmits the generated PWM dimming signal to the sensor control power supply unit 200.

[0032] The PWM dimming signal is a signal for fading in the lighting of the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" in cooperation with each other to a predetermined dimming level, or for fading out the lighting of the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" that are lit at a predetermined brightness in cooperation with each other.

[0033] For example, when the PWM signal generating unit 130 receives a "detection signal (sensor ON signal) indicating the presence of a person" from the motion sensor 120 while the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" are turned off, it generates a PWM dimming signal for fading in the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" in conjunction with each other to a predetermined dimming level. This PWM dimming signal is a control signal for gradually brightening the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" in conjunction with each other (the light sources slowly and softly light up).

[0034] In addition, for example, when the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" are turned on at a predetermined dimming level and the PWM signal generating unit 130 receives a "detection signal indicating that no person is present (sensor OFF signal)" from the human presence sensor 120, it generates a PWM dimming signal to cause the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" to fade out and turn off in unison. This PWM dimming signal is a control signal for gradually decreasing the brightness of the "lighting unit 110 of the sensor-equipped lighting fixture 100" and the "general lighting fixtures 310, 320, 330, 340" in unison and turning them off after a predetermined time period (e.g., after a few seconds).

[0035] <Sensor control power supply unit 200> Next, the configuration of the sensor control power supply unit 200 of the lighting system of the first embodiment will be described with reference to the above-mentioned FIG. 3 and FIG. Here, FIG. 4 is a schematic diagram showing the external appearance of the sensor control power supply unit constituting the lighting system of the first embodiment.

[0036] As shown in FIG. 3, the sensor-controlled power supply unit 200 has an LED lighting device 210 that receives a PWM dimming signal transmitted from the PWM signal generating unit 130 and supplies LED lighting power to the sensor-equipped lighting fixture 100 according to the received PWM dimming signal.

[0037] This LED lighting device 210 supplies LED lighting power to the sensor-equipped lighting fixture 100 to fade in the "lighting unit 110 of the sensor-equipped lighting fixture 100" so that the brightness becomes a predetermined dimming level in response to the received PWM dimming signal, or to fade out and turn off the "lighting unit 110 of the sensor-equipped lighting fixture 100" that is lit at a predetermined brightness. As a result, the light source (LED module 112) of the lighting unit 110 of the sensor-equipped lighting fixture 100 gradually becomes brighter (the light source slowly "softly" lights up), or the brightness of the light source (LED module 112) of the lighting unit 110 gradually decreases and turns off after a predetermined time (e.g., after a few seconds).

[0038] In addition, the sensor control power supply unit 200 transmits the received PWM dimming signal to the general lighting fixtures 310, 320, 330, and 340. As a result, when the lighting unit 110 of the sensor-equipped lighting fixture 100 fades in to light, the light sources of the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) fade in to light in conjunction with the lighting unit 110. Furthermore, when the lighting unit 110 of the sensor-equipped lighting fixture 100 fades out and is turned off, the light sources of the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) fade out and are turned off in conjunction with the lighting unit 110.

[0039] As shown in FIG. 4, the LED lighting device (power supply unit) 210 is housed in a box-shaped housing 200a, and is configured from a power supply unit used in lighting fixtures of existing technology.

[0040] 《General lighting equipment》 Next, the configuration of the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) will be described with reference to FIG.

[0041] The lighting fixture 310 has a PWM dimming power supply section 311 electrically connected to the sensor control power supply unit 200, and an LED lighting unit 313 having an LED module that serves as a light source.

[0042] The PWM dimming power supply unit 311 receives the PWM dimming signal transmitted from the PWM signal generating unit 130 via the sensor control power supply unit 200, and supplies LED lighting power to the LED lighting unit 313 that corresponds to the content of the received PWM dimming signal. The LED lighting power supplied from the PWM dimming power supply section 311 to the LED lighting unit 313 is similar to the LED lighting power supplied from the LED lighting device 210 of the sensor control power supply unit 200 to the sensor-equipped lighting fixture 100.

[0043] When the LED lighting unit 313 receives LED lighting power from the PMW dimming power supply section 311, it fades in the light source to light up to a dimming level brightness according to the supplied LED lighting power, or fades out the light source that is lit at a predetermined dimming level brightness, according to the supplied LED lighting power. Since the LED lighting unit 313 is supplied with the same LED lighting power as that supplied to the sensor-equipped lighting fixture 100, it fades in and turns on in conjunction with the light source of the sensor-equipped lighting fixture 100 (or fades out and turns off in conjunction with the light source of the sensor-equipped lighting fixture 100).

[0044] The lighting fixture 320 includes a PWM dimming power supply section 321 and an LED lighting unit 323. The lighting fixture 330 includes a PWM dimming power supply unit 331 and an LED lighting unit 333. The lighting fixture 340 includes a PWM dimming power supply unit 341 and an LED lighting unit 343.

[0045] It should be noted that the “PWM dimming power supply units 321, 331, and 341” all have the same functions as the PWM dimming power supply unit 311 of the lighting fixture 310. Moreover, the “LED lighting units 323 , 333 , 343 ” are all configured to have the same functions as the LED lighting unit 313 of the lighting fixture 310 .

[0046] When lighting fixtures 320, 330, and 340 receive a PWM dimming signal transmitted from PWM signal generating unit 130 via sensor control power supply unit 200, they perform a fade-in lighting operation linked to the light source of sensor-equipped lighting fixture 100 (or a fade-out lighting operation linked to the light source of sensor-equipped lighting fixture 100), similar to lighting fixture 310.

[0047] In this way, in the lighting system of the first embodiment, when the motion sensor 120 of the sensor-equipped lighting fixture 100 detects the presence or absence of a person, the sensor-equipped lighting fixture 100 and multiple general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) work together depending on the detection content to fade in the light source so that the brightness reaches a dimming level according to the detection content, or fade out the light source that is on at a predetermined dimming level.

[0048] That is, according to the first embodiment, multiple lighting devices can work together in response to a detection signal detected by the human presence sensor 120 to fade in the light sources to a predetermined dimming level, or fade out the light sources that are on. Therefore, for example, if the lighting system of the first embodiment is installed in a wide area where people pass sporadically, a lighting environment that does not feel unnatural is provided in this area.

[0049] As described above, according to the first embodiment, it is possible to provide a lighting system in which a plurality of general dimming type lighting devices operate in conjunction with each other in response to a detection signal detected by the human presence sensor 120, thereby easily realizing a lighting environment that is less uncomfortable for a specified area.

[0050] <<Illumination System of Second Embodiment>> Next, a lighting system according to a second embodiment of the present invention will be described with reference to FIGS.

[0051] Here, Fig. 5 is a schematic diagram for explaining the configuration of the lighting system of the second embodiment. Fig. 6 is a schematic diagram for explaining the configuration of a dedicated sensor device constituting the lighting system of the second embodiment. Fig. 7 is a functional block diagram of the lighting system of the second embodiment.

[0052] The lighting system of the second embodiment is configured to have a sensor-only device 400 without a lighting unit instead of the sensor-equipped lighting fixture 100 of the lighting system of the first embodiment. Also, in the lighting system of the second embodiment, the LED lighting device 210 of the sensor-controlled power supply unit 200 of the first embodiment is used for lighting external lighting, and a sensor-controlled power supply unit 500 with some functions changed is provided. In the description of the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals and the description thereof will be omitted.

[0053] 5, the lighting system of the second embodiment includes a sensor-dedicated device 400 equipped with a motion sensor 420 and a PWM signal generating unit 430, a plurality of general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340, lighting fixture 350), and a sensor control power supply unit 500. The sensor control power supply unit 500 is electrically connected to the sensor-dedicated device 400, and is also electrically connected to each of the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340, lighting fixture 350).

[0054] The general lighting fixtures 310, 320, 330, and 340 are the same as those in the first embodiment. Moreover, the general lighting fixture 350 is a type of lighting fixture that is not provided with a power supply unit (PWM dimming power supply unit), and is turned on and off by the LED lighting power supplied from the sensor control power supply unit 500. 7, the general lighting fixture 350 has an LED lighting unit 353. The LED lighting unit 353 has the same functions as the LED lighting unit 313 of the general lighting fixture 310.

[0055] As shown in FIG. 6, the sensor-dedicated device 400 has a housing 401, a human sensor 420 accommodated in the housing 401, a PWM signal generating unit 430, a trim 403, and an attachment spring 405. When the human presence sensor 420 detects the presence of a person in the area below the dedicated sensor device 400, it transmits a detection signal (sensor ON signal) indicating the presence of a person to the PWM signal generating unit 430. On the other hand, when the human presence sensor 420 does not detect the presence of a person in the area below the dedicated sensor device 400, it transmits a detection signal (sensor OFF signal) indicating the absence of a person to the PWM signal generating unit 430. The human sensor 420 has the same configuration as the human sensor 120 of the first embodiment.

[0056] The PWM signal generating section 430 has the same configuration as the PWM signal generating section 130 of the first embodiment. Specifically, the PWM signal generating unit 430 receives a detection signal (sensor ON signal, sensor OFF signal) transmitted by the human sensor 420, generates a PWM dimming signal corresponding to the content of the received detection signal, and transmits the generated PWM dimming signal to the sensor control power supply unit 500.

[0057] The sensor control power supply unit 500 has an LED lighting device 510 that receives a PWM dimming signal transmitted from the PWM signal generating unit 430 and supplies LED lighting power according to the received PWM dimming signal to the general lighting fixture 350 (see FIG. 7). In addition, the sensor control power supply unit 500 transmits the received PWM dimming signal to the general lighting fixtures 310, 320, 330, and 340. The LED lighting device 510 has the same functions as the LED lighting device 210 of the first embodiment.

[0058] According to the configuration of the second embodiment, multiple general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) each receive a PWM dimming signal transmitted from sensor-dedicated device 400 via sensor control unit 500, and fade-in the light source to a brightness level corresponding to the received PWM dimming signal, or fade-out the light source that is lit at a predetermined brightness.

[0059] In addition, the general lighting fixture 350 works in conjunction with the general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340) using the LED lighting power supplied from the LED lighting device 510 to fade in the light source and fade out the light source that is lit at a specified brightness.

[0060] In this manner, according to the configuration of the second embodiment, when the motion sensor 420 mounted on the sensor-dedicated device 400 detects the presence or absence of a person, the multiple general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340, lighting fixture 350) work together in accordance with the content of the detection to fade in the light sources so that the brightness reaches a dimming level according to the content of the detection, or fade out the light sources that are on at a predetermined dimming level.

[0061] That is, according to the second embodiment, multiple lighting devices can work together in response to a detection signal detected by the human presence sensor 120 to fade in the light sources to a predetermined dimming level, or fade out the light sources that are on. Therefore, for example, in the second embodiment as well, as in the first embodiment, it is possible to provide a lighting system that realizes a lighting environment that is less uncomfortable in a predetermined area.

[0062] The present invention is not limited to the above-described embodiment, and various modifications are possible within the scope of the present invention.

[0063] For example, the lighting system of the first embodiment described above is configured to include multiple general lighting fixtures (lighting fixture 310, lighting fixture 320, lighting fixture 330, lighting fixture 340), but may be configured to include only one general lighting fixture. The number of general lighting fixtures is appropriately designed according to the size of the installation location of the lighting system.

[0064] In the second embodiment, the general lighting fixture 350 is provided which is not provided with a power supply unit (PWM dimming power supply unit). However, the system may be configured without providing the general lighting fixture 350. [Explanation of symbols]

[0065] 100…Lighting fixtures with sensors 110...LED lighting unit 111…Heat sink 112…LED module 113…Trim 114...Reflector 115…Mounting spring 116…Heat sink 130, 430...PWM signal generation section 200, 500...Sensor control power supply unit 220a…Housing 210, 510...LED lighting device 310, 320, 330, 340, 350…General lighting equipment 311, 321, 331, 341...PWM dimming power supply section 313, 323, 333, 343, 353...LED lighting units 400…Sensor-only equipment 401…Housing 403…Trim 405…Mounting spring

Claims

1. A lighting system comprising: a first lighting fixture having a motion sensor and a first light source; a second lighting fixture having a second light source; and a sensor control power supply unit electrically connected to each of the first lighting fixture and the second lighting fixture, The human presence sensor is driven by sensor power supplied from the sensor control power supply unit, detects the presence or absence of a person in a predetermined area, and outputs a detection signal indicating the detected content. the first lighting fixture has a PWM signal generation unit that acquires a detection signal output by the motion sensor, generates a PWM dimming signal for fading in the first lighting fixture and the second lighting fixture in cooperation with each other to a brightness of a predetermined dimming level in response to the content of the acquired detection signal, or for fading out the first lighting fixture and the second lighting fixture that are lit at a predetermined brightness, and transmits the PWM dimming signal to the sensor control power supply unit; the sensor control power supply unit has a lighting device that receives a PWM dimming signal transmitted from the PWM signal generating unit, and supplies lighting power to the first lighting device for fading in the first light source to a brightness of a predetermined dimming level in response to the received PWM dimming signal, or for fading out the first light source that is lit at a predetermined brightness, and transmits the received PWM dimming signal to the second lighting device; a second lighting device that, upon receiving the PWM dimming signal transmitted from the sensor control power supply unit, fades in the second light source in conjunction with the first light source so that the second light source has a brightness of a predetermined dimming level, or fades out the second light source, which is lit at a predetermined brightness, in conjunction with the first light source.

2. The lighting system according to claim 1, characterized in that a plurality of the second lighting fixtures are provided, each of which has a PWM dimming power supply unit that receives a PWM dimming signal transmitted from a PWM signal generating unit of the sensor control power supply unit and supplies lighting power to the second light source corresponding to the content of the received PWM dimming signal.

3. A lighting system including a dedicated sensor device having a motion sensor, a plurality of lighting fixtures, and a sensor control power supply unit electrically connected to the dedicated sensor device and each of the plurality of lighting fixtures, The lighting device has a light source, The human presence sensor is driven by sensor power supplied from the sensor control power supply unit, detects the presence or absence of a person in a predetermined area, and outputs a detection signal indicating the detected content. the sensor-dedicated device has a PWM signal generation unit that acquires a detection signal output by the motion sensor, generates a PWM dimming signal corresponding to the content of the acquired detection signal to cause a plurality of lighting fixtures to work together to fade in and turn on to a brightness of a predetermined dimming level, or causes a plurality of lighting fixtures that are turned on at a predetermined brightness to fade out and turn off in cooperation, and transmits the PWM dimming signal to the sensor control power supply unit; the sensor control power supply unit is configured to transmit, upon receiving a PWM dimming signal transmitted from the PWM signal generating unit, the received PWM signal to the plurality of lighting fixtures; A lighting system characterized in that, when the multiple lighting fixtures receive the PWM dimming signal transmitted from the sensor control power supply unit, they work in conjunction with each other to fade-in the light sources to a predetermined dimming level, or fade-out the light sources that are lit at a predetermined brightness.

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