JP2012022781A - Lighting system - Google Patents

Abstract

[PROBLEMS] To appropriately control the brightness of an entire lighting device according to a change in surrounding conditions by a sensor device mounted at a position lower than a lamp.
When a movement of an object is detected by a human sensor, a sensor device 13 attached to a position lower than the lamp 12 of the support column 11 and LED modules 14a to 14d of the lamp 12 and the LED module of the sensor device 13 All of 14g-14j are turned on. When the movement of the object is not detected by the human sensor, only three of the LED modules 14a to 14d of the lamp 12 and only one of the LED modules 14g to 14j of the sensor device 13 are turned on. The sensor device 13 operates the human sensor when the brightness detected by the illuminance sensor is less than the predetermined brightness, and stops the operation of the human sensor when the brightness is equal to or higher than the predetermined brightness. All of 14a-14d and 14g-14j are extinguished.
[Selection] Figure 2

Description

  The present invention relates to a lighting device. The present invention particularly relates to a street light illumination device with a sensor.

  There are street lamps that hold lighting fixtures on the top of a column (for example, see Patent Documents 1 and 2).

JP 2003-308986 A JP 2002-231047 A

  In the outdoor lighting at night, the output of the lighting is constant, and the illuminance cannot be controlled according to the usage condition. Therefore, there was a problem of consuming more illuminance and energy than necessary.

  An object of the present invention is to appropriately control the brightness of the entire lighting device according to a change in surrounding conditions, for example, by a sensor device attached at a position lower than a lamp.

A lighting device according to one embodiment of the present invention includes:
A plurality of first LEDs that irradiate light, and a lamp that is attached to a column that is erected on the ground;
A sensor device comprising a plurality of second LEDs for irradiating light and a first sensor for detecting movement of an object, the sensor device being mounted at a position lower than the lamp of the column;
A control device that controls lighting states of the plurality of first LEDs and the plurality of second LEDs, and when the movement of an object is detected by the first sensor, the light flux of the entire light irradiated on the plurality of second LEDs And a control device that controls the luminous flux to be larger than that when the movement of the object is not detected by the first sensor.

  According to one aspect of the present invention, it is possible to appropriately control the brightness of the entire lighting device in accordance with changes in the surrounding conditions by using a sensor device attached at a position lower than the lamp.

BRIEF DESCRIPTION OF THE DRAWINGS (a) External side view of street light according to Embodiment 1, (b) External perspective view of street light lamp, (c) External perspective view of sensor device of street light, (d) Perspective view of LED module. (A) The external side view of a street light concerning Embodiment 2, (b) The external perspective view of the lamp of a street light, (c) The external perspective view of the sensor instrument of a street light.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
Fig.1 (a) is an external side view of the street lamp 10 which concerns on this Embodiment.

  In FIG. 1A, a street lamp 10 (an example of a lighting device) includes a column 11 standing on the ground, a lamp 12 attached to the column 11 (for example, the uppermost portion thereof), and a lamp 12 of the column 11. And a sensor device 13 mounted at a low position. The street lamp 10 includes a control device (for example, a microcomputer) (not shown) inside the sensor device 13, for example.

  FIG. 1B is an external perspective view of the lamp 12 of the street lamp 10.

  In FIG. 1B, the lamp 12 includes six LED modules 14a to 14f (an example of a plurality of first LEDs that irradiate light) mounted inside and a lighting (not shown) that supplies power to the LED modules 14a to 14f. Device. The number of the LED modules 14a to 14f mounted on the lamp 12 may be 5 or less, or 7 or more. Moreover, in this Embodiment, although substantially linear LED module 14a-14f is arrange | positioned in parallel, you may arrange | position the ring-shaped LED module 14a-14f from which a magnitude | size differs in order from a substantially center. The LED modules 14a to 14f having other shapes may be arranged in other forms.

  FIG. 1C is an external perspective view of the sensor device 13 of the street light 10.

  In FIG. 1C, the sensor device 13 includes an illuminance sensor that detects brightness (an example of a second sensor that detects brightness) and a human sensor that detects the presence of a person (first that detects movement of an object). 1 sensor example). The human sensor detects, for example, the movement of a heat source, and can also detect the movement of a heat source other than a person (for example, a vehicle such as an automobile). As described above, the sensor device 13 also includes a control device. The control device controls the lighting state of the LED modules 14 a to 14 f of the lamp 12. The control device also has a timer circuit that measures time.

  FIG. 1D is a perspective view of the LED module 14a.

  In FIG. 1D, the LED module 14 a includes a substrate 16 and six LEDs 17 mounted on the substrate 16. About the structure of LED module 14b-14f, it is the same as the structure of LED module 14a. The number of LEDs 17 mounted on the substrate 16 may be 5 or less, or 7 or more.

  The lamp 12 and the sensor device 13 are connected by a signal line built in the column 11. Information on the brightness detected by the sensor 15 of the sensor device 13 and the movement of the heat source is transmitted to the lighting device inside the lamp 12 via this signal line. Based on this information, the lighting device adjusts the power supplied to the LED modules 14a to 14f, and controls the lighting state of the LED 17.

  Next, operation | movement of the street lamp 10 in this Embodiment is demonstrated.

  First, the sensor device 13 (control device) detects external brightness by an illuminance sensor.

  The sensor device 13 (control device) outputs a turn-off signal that causes the lamp 12 (lighting device) to turn off the LED modules 14a to 14f, for example, when the external brightness is greater than or equal to a predetermined brightness, such as during the daytime. The lamp 12 (lighting device) turns off the LED modules 14a to 14f according to the turn-off signal. At this time, since the LED modules 14a to 14f are turned off, it is not necessary to operate the human sensor. Therefore, the sensor instrument 13 (control device) stops the operation of the human sensor.

  In addition, when the external brightness is less than a predetermined brightness, for example, at night or the like, the sensor device 13 (control device) outputs a lighting signal for lighting the LED (lighting device). The lamp 12 (lighting device) lights the LED modules 14a to 14f according to the lighting signal. At this time, the sensor device 13 (control device) starts the operation of the human sensor.

  Next, an operation when the sensor instrument 13 (control device) is transmitting a lighting signal to the lamp 12 (lighting device) will be described.

  When the human sensor detects the movement of a heat source such as a person or a vehicle, the sensor device 13 (control device) outputs a detection signal that instructs the lamp 12 (lighting device) to turn on all. When the lamp 12 (lighting device) inputs this detection signal, the LED modules 14a to 14f are turned on.

  Next, when the human sensor no longer detects the movement of a heat source such as a person or a vehicle, the timer circuit inside the sensor device 13 (control device) counts the time after the detection stops.

  When the time counted by this timer circuit elapses (for example, a state in which the human sensor does not detect a person or a vehicle continues for one minute), the sensor device 13 (control device) sends an absence signal to the lamp 12 (lighting device). Is output. The lamp 12 (lighting device) inputs this absence signal and turns off the LED modules 14b, 14d, and 14f. At this time, the lamp 12 (lighting device) maintains the lighted state for the LED modules 14a, 14c, and 14e.

  If the human sensor again detects a person or a vehicle while the sensor device 13 (control device) outputs the absence signal or the timer circuit is counting time, the sensor device 13 (control device). Outputs a full lighting signal to the lamp 12 (lighting device).

  As described above, when the movement of the object is detected by the human sensor, the control device built in the sensor device 13 uses the human sensor to emit the entire luminous flux irradiated to the LED modules 14a to 14f of the lamp 12. If no movement is detected, the light flux is controlled to be larger. For example, when the movement of the object is detected by the human sensor, all of the LED modules 14a to 14f are turned on. When the movement of the object is not detected by the human sensor, a part of the LED modules 14a to 14f is controlled. (For example, the LED modules 14b, 14d, and 14f) are turned off. When the movement of the object is detected by the human sensor, the control device turns on all the LED modules 14a to 14f with 100% light flux (example of the first light flux), and the movement of the object is detected by the human sensor. If not detected, all of the LED modules 14a to 14f may be turned on with 50% light flux (an example of a second light flux smaller than the first light flux).

  In addition, when the brightness detected by the illuminance sensor is less than a predetermined brightness (for example, a threshold value stored in advance in the memory of the control device), the control device operates the human sensor and is detected by the illuminance sensor. When the brightness is equal to or higher than the predetermined brightness, the operation of the human sensor is stopped and all the LED modules 14a to 14f are turned off.

  Thus, in this Embodiment, the lighting number of LED module 14a-14f mounted in the lamp 12 of the street lamp 10 is switched as needed. For example, when the human sensor detects the presence of a person or an object in the usage environment, all of the LED modules 14a to 14f are turned on. On the other hand, when there is no person or thing, only some of the LED modules 14a to 14f are turned on.

  For example, in a parking lot of a commercial facility where there are no people or objects and the vehicle is stopped, the lamp 12 of the street light 10 is lit with the number of LED modules according to the minimum illuminance level necessary for security. . When a human sensor detects a state in which a person or vehicle has moved, the number of LED modules that are lit by the lamp 12 of the street light 10 at the detection location is increased to increase the illuminance. When it is detected that the movement of a person, a vehicle, or the like is lost, the lighting state is switched to the lighting state with the number of LED modules that matches the minimum illuminance level necessary for security again. At this time, it is desirable to switch the lighting operation after about one minute has elapsed since the last sensor detection (which means that the human sensor detects the movement of the heat source).

  For example, as shown in FIG. 1B, six LED modules that are switched on and turned on by sensor detection are arranged in parallel to the lamp 12. When the sensor is detected, all the LED modules 14a to 14f are turned on. When not detected (meaning that the human sensor has not detected the movement of the heat source), only the LED modules 14a, 14c, and 14e are turned on. Alternatively, all the LED modules 14a to 14f can be lit when the sensor is detected, and only the LED modules 14a and 14f can be lit when not detected.

  As described above, in the present embodiment, an LED is used as a light source, and a sensor is attached to a lighting fixture equipped with a plurality of LED modules equipped with LEDs so that necessary illuminance can be obtained when necessary. By controlling the lighting state for each LED module, an energy saving effect can be obtained. In addition, since the illuminance can be lowered when it is not necessary, there is an effect of reducing light pollution. Further, when used in a large parking lot or the like, a place where there is a movement of a person, a vehicle or the like can be confirmed to some extent by a sensor even from a distance.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.

  Fig.2 (a) is an external side view of the street lamp 10 which concerns on this Embodiment. FIG. 2B is an external perspective view of the lamp 12 of the street lamp 10. FIG. 2C is an external perspective view of the sensor device 13 of the street light 10.

  In FIG. 2A, the configuration of the street lamp 10 is the same as that of the first embodiment.

  In the first embodiment, the number of lighting of the plurality of LED modules 14a to 14f mounted on the lamp 12 is switched according to the detection state of the sensor 15, but in the present embodiment, it is shown in FIG. As described above, the sensor device 13 is also equipped with a plurality of LED modules 14g to 14j, and the number of LED module lightings when the sensor is detected and not detected can be arbitrarily set.

  For example, as shown in FIG. 2B, the lamp 12 is mounted with four LED modules 14a to 14d (examples of a plurality of first LEDs that emit light), as shown in FIG. 2C. Also, four LED modules 14g to 14j (an example of a plurality of second LEDs that emit light) are mounted on the sensor device 13. About the structure of LED module 14a-14d, 14g-14j, it is the same as the structure of LED module 14a shown in FIG.1 (d).

  In the present embodiment, the control device built in the sensor fixture 13 controls not only the LED modules 14 a to 14 d of the lamp 12 but also the lighting states of the LED modules 14 g to 14 j of the sensor fixture 13.

  When the movement of the object is detected by the human sensor, the control device controls the luminous flux of the entire light irradiated to the LED modules 14g to 14j of the sensor device 13 to a larger luminous flux than when the movement of the object is not detected by the human sensor. To do. For example, when the movement of the object is detected by the human sensor, the control device turns on all the LED modules 14g to 14j of the sensor instrument 13, and when the movement of the object is not detected by the human sensor, At least a part (for example, all or LED modules 14h and 14j) of the LED modules 14g to 14j is turned off. Note that when the movement of the object is detected by the human sensor, the control device turns on all of the LED modules 14g to 14j with 100% light flux (example of the third light beam), and the movement of the object is detected by the human sensor. If not detected, all of the LED modules 14g to 14j may be turned on with 50% light flux (an example of a fourth light flux smaller than the third light flux).

  The control device turns on all the LED modules 14a to 14d of the lamp 12 whether or not the movement of the object is detected by the human sensor. Alternatively, when the movement of the object is detected by the human sensor, the control device moves the light beam of the entire light irradiated on the LED modules 14a to 14d of the lamp 12 using the human sensor, as in the first embodiment. If no light is detected, the light flux is controlled to be larger. For example, when the movement of the object is detected by the human sensor, all of the LED modules 14a to 14d are turned on. When the movement of the object is not detected by the human sensor, a part of the LED modules 14a to 14d is used. (For example, the LED modules 14b and 14d) are turned off. Note that when the movement of the object is detected by the human sensor, the control device lights all of the LED modules 14a to 14d with 100% light flux (example of the first light beam), and the movement of the object is detected by the human sensor. If not detected, all of the LED modules 14a to 14d may be turned on with 50% light flux (an example of a second light flux smaller than the first light flux).

  In addition, when the brightness detected by the illuminance sensor is less than a predetermined brightness (for example, a threshold value stored in advance in the memory of the control device), the control device operates the human sensor and is detected by the illuminance sensor. When the brightness is equal to or higher than the predetermined brightness, the motion sensor is stopped and all the LED modules 14a to 14d and 14g to 14j are turned off. For example, the control device may adjust the threshold value stored in advance in the memory and indicating the predetermined brightness in accordance with the lighting state of the LED modules 14a to 14d and 14g to 14j. In this case, the control device has a dimming degree (when the number of LED modules that are lit is large among the LED modules 14g to 14j (or LED modules 14a to 14d, 14g to 14j) or the LED modules that are lit ( When the luminous flux is high, the threshold value is set to a large value. In the opposite case, the threshold value is set to a small value. Therefore, for example, the threshold when all the LED modules 14g to 14j are lit is larger than the threshold when only the LED modules 14b and 14d are lit. In this way, by adjusting the threshold value indicating the predetermined brightness, when it is desired to detect the brightness obtained by the lamp 12 or the sensor fixture 13 with the illuminance sensor, the LED modules 14a to 14d and 14g to 14j are erroneously set. It is possible to prevent the lights from being turned off.

  As described above, in this embodiment, when the sensor is not detected, the illumination LED illuminates a wider area. For example, the number of lighting LED modules is three for the lamp 12 and one for the sensor fixture 13, and all the LEDs are detected when the sensor is detected. The modules 14a to 14d and 14g to 14j can be turned on. At this time, since the sensor device 13 is installed at a position lower than the lamp 12, the vicinity of the installation place of the street lamp 10 can be made brighter when the sensor is detected.

  As mentioned above, although embodiment of this invention was described, you may implement combining 2 or more embodiment among these. Alternatively, one of these embodiments may be partially implemented. Or you may implement combining two or more embodiment among these partially.

  DESCRIPTION OF SYMBOLS 10 Street light, 11 support | pillar, 12 lamp, 13 sensor apparatus, 14a-14j LED module, 15 sensor, 16 board | substrate, 17 LED.

Claims (6)

A plurality of first LEDs that irradiate light, and a lamp that is attached to a column that is erected on the ground;
A sensor device comprising a plurality of second LEDs for irradiating light and a first sensor for detecting movement of an object, the sensor device being mounted at a position lower than the lamp of the column;
A control device that controls lighting states of the plurality of first LEDs and the plurality of second LEDs, and when the movement of an object is detected by the first sensor, the light flux of the entire light irradiated on the plurality of second LEDs And a control device that controls the luminous flux to be larger than that when the movement of the object is not detected by the first sensor.   When the movement of the object is detected by the first sensor, the control device controls the light flux of the entire light irradiated to the plurality of first LEDs to be larger than that when the movement of the object is not detected by the first sensor. The lighting device according to claim 1.   When the movement of the object is detected by the first sensor, the control device lights all of the plurality of second LEDs, and when the movement of the object is not detected by the first sensor, at least one of the plurality of second LEDs The lighting device according to claim 1 or 2, wherein a part of the lighting device is turned off. A plurality of first LEDs that irradiate light, and a lamp that is attached to a column that is erected on the ground;
A sensor device comprising a first sensor for detecting the movement of an object and attached to a position lower than the lamp of the column;
A control device that controls lighting states of the plurality of first LEDs, and when the movement of the object is detected by the first sensor, the light flux of the whole light irradiated on the plurality of first LEDs is detected by the first sensor. And a control device that controls the luminous flux to be larger than that in the case where no movement is detected.   When the movement of the object is detected by the first sensor, the control device turns on all of the plurality of first LEDs, and when the movement of the object is not detected by the first sensor, The illuminating device of Claim 2 or 4 which makes a part light-extinguish. The sensor device includes a second sensor for detecting brightness,
The control device operates the first sensor when the brightness detected by the second sensor is less than a predetermined brightness, and the brightness detected by the second sensor is equal to or higher than the predetermined brightness. In this case, the lighting device according to claim 1, wherein the operation of the first sensor is stopped and all of the plurality of first LEDs are turned off.

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