JP5396666B2 - LED lighting system - Google Patents

Description

  The present invention relates to an LED illumination system used for, for example, staircase illumination.

  FIG. 10 shows an example of a conventional LED illumination system used for staircase illumination (see, for example, Patent Document 1). The LED illumination system X shown in the figure includes a plurality of LED units 91. Each LED unit 91 is attached to the tip of the step board Ps of the staircase St or the upper part of the kick board Pk. For example, in a relatively dark time zone such as after the evening, the LED unit 91 is lit to illuminate the tread board Ps. Thereby, it can suppress that the person who goes up and down Stair St falls over accidentally.

  However, for example, in a general residence, the frequency of people going up and down stairs is not so high. If the LED unit 91 is turned on while a person does not come and go, the energy required for that is wasted. Further, the person who goes up and down the stairs pays attention to the tread board Ps or the kick board Pk that he / she wants to step on, but hardly looks at the other tread boards Ps or the kick board Pk. It can be said that the energy that illuminates the tread board Ps and the kick board Pk that are not attracting attention is also wasted.

JP 2001-229729 A

  The present invention has been conceived under the circumstances described above, and it is an object of the present invention to provide an LED lighting system capable of reducing energy while appropriately illuminating an illumination target such as a staircase. To do.

  The LED lighting system provided by the present invention includes a plurality of LED units each having a plurality of LED chips, and the plurality of LED units connected to each other, and an ID for identifying the plurality of LED units. One or more that recognizes the plurality of allocated unit groups in distinction and outputs an output signal used for lighting control of each of the unit groups to the controller. And a sensor.

  According to such a configuration, for example, the plurality of LED units may be turned on only when a person who goes up and down the stairs arrives, and the plurality of LED units are turned off while there is no person going up and down the stairs. It can be in a state. Thereby, for example, it is not necessary to always turn on the plurality of LED units in a relatively dark time zone from evening to night. Therefore, for example, it is possible to reduce energy consumption while appropriately illuminating the stairs so that a person who goes up and down the stairs does not fall down accidentally.

  In a preferred embodiment of the present invention, the plurality of unit groups are given a permutation by the ID.

  In a preferred embodiment of the present invention, the plurality of unit groups are provided on the step board on the upper stage side of the stairs as they are higher in the permutation, and on the tread board on the lower stage side of the stairs as they are lower in the permutation. Is provided.

  In a preferred embodiment of the present invention, the plurality of unit groups are provided on the step board on the upper side of the stairs as they are lower in the permutation, and on the step board on the lower side of the stairs as they are higher in the permutation. Is provided.

  In a preferred embodiment of the present invention, the two sensors are provided, and the controller receives the output signal from one of the sensors, and then the plurality of unit groups in order from the highest unit group in the permutation. When the output signal from the other sensor is received, the plurality of unit groups are lit in order from the lowest unit group in the permutation.

  In a preferred embodiment of the present invention, the controller is capable of adjusting a lighting speed when lighting each unit group.

  In a preferred embodiment of the present invention, the controller is capable of adjusting a lighting start time difference between two unit groups adjacent in the permutation.

  In a preferred embodiment of the present invention, the controller is capable of adjusting a turn-off speed when turning off each unit group.

  In a preferred embodiment of the present invention, the controller can adjust the maximum illuminance of each unit group.

  In a preferred embodiment of the present invention, the controller is lit until all of the plurality of unit groups are turned on after starting the lighting of the uppermost unit or the lowermost unit group. The lighting state of each unit group is maintained.

  In a preferred embodiment of the present invention, the controller is capable of adjusting a total lighting maintaining time from the time when all of the plurality of unit groups are turned on to the start of turning off.

  In a preferred embodiment of the present invention, the controller starts turning on the plurality of unit groups by an output signal from either of the two sensors, and then turns off the plurality of unit groups. After the lighting of the plurality of unit groups is started by the normal mode in which a new output signal from the sensor is not used for lighting control and the output signal from one of the two sensors, the plurality of unit groups are turned off. In the meantime, when a new output signal is received from this sensor, a demo mode for resuming lighting control after immediately turning off the plurality of unit groups is provided.

  In a preferred embodiment of the present invention, an additional sensor is further provided.

  In a preferred embodiment of the present invention, when the controller receives an output signal from the additional sensor, the controller starts lighting any one of the plurality of unit groups other than the highest and lowest in the permutation. .

  In a preferred embodiment of the present invention, the output signal of the additional sensor is sent wirelessly to the controller.

  Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.

1 is an overall schematic diagram showing an LED illumination system according to a first embodiment of the present invention. It is a system block diagram of the LED illumination system shown in FIG. It is a top view which shows the LED unit of the LED illumination system shown in FIG. It is sectional drawing which follows the IV-IV line of FIG. It is a timing chart which shows an example of the lighting control in the normal mode of the LED lighting system shown in FIG. It is a timing chart which shows the other example of lighting control in the normal mode of the LED lighting system shown in FIG. It is a timing chart which shows an example of the lighting control in the demonstration mode of the LED lighting system shown in FIG. It is a system block diagram which shows the LED lighting system based on 2nd Embodiment of this invention. It is a system block diagram which shows the LED lighting system based on 3rd Embodiment of this invention. It is the whole schematic figure which shows an example of the conventional LED lighting system.

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

  1 and 2 show an LED lighting system according to a first embodiment of the present invention. The LED illumination system A1 according to the present embodiment includes a plurality of LED units B1 to B9, touch sensors 5A and 5B, and a controller 7. The LED lighting system A1 is used, for example, for lighting a staircase St in a residence.

  As shown in FIG. 1, each of the LED units B <b> 1 to B <b> 9 is attached to the tread board Ps of the stair St, and is connected to the controller 7. The LED units B1 to B9 all have the same specifications in the present embodiment. Taking the LED unit B1 as an example, as shown in FIGS. 3 and 4, the case 1, the substrate 2, and the plurality of LED modules 3 are used. And a diffusion plate 4. In FIG. 3, the diffusing plate 4 is omitted for the sake of understanding.

  The case 1 has an elongated shape as a whole and has a substantially U-shaped cross section, and is made of, for example, resin or aluminum. The case 1 holds the substrate 2 and the diffusion plate 4. One of the pair of side plates of the case 1 has a larger width (dimension in the vertical direction in the drawing in FIG. 4) than the other, and a smaller width is larger on the side closer to the kick plate Pk. Is arranged on the side far from the kick plate Pk.

  The board | substrate 2 is made into the elongate rectangular shape, for example, consists of glass epoxy resin with which the filler with comparatively high heat conductivity was mixed. A plurality of LED modules 3 are mounted on the substrate 2 in, for example, a single row at an equal pitch.

  The plurality of LED modules 3 are light sources of the LED units B1 to B9 and include LED bare chips. More specifically, each LED module 3 includes a substrate or lead on which the LED bare chip is mounted, and a translucent resin that covers the LED bare chip, and a resin case that appropriately surrounds the translucent resin is provided. ing. The LED bare chip is made of, for example, a GaN-based semiconductor and emits blue light, for example. The translucent resin is made of, for example, a material in which a fluorescent material is mixed into a transparent silicone resin or epoxy resin. This fluorescent material emits yellow light, for example, when excited by blue light from the LED bare chip. The LED module 3 can emit white or light bulb light by mixing blue light and yellow light. In the present embodiment, the LED module 3 emits light bulb color light.

  The diffuser plate 4 is made of, for example, milky white translucent resin, and allows light from the plurality of LED modules 3 to pass through while diffusing. Thereby, the light which gives a comparatively soft impression is irradiated from LED unit B1-B9. In the present embodiment, since the case 1 is attached in the above-described posture, the diffusion plate 4 is slightly inclined to face the kick plate Pk side.

  The touch sensors 5A and 5B are for detecting that a person has come to the bottom or top of the stair St, and have electrodes 51A and 51B, respectively. The electrode 51A is attached to the lower end of the handrail Hr, and the electrode 51B is attached to the upper end of the handrail Hr. When a person touches the electrodes 51A and 51B, detection signals S1 and S2 are output from the corresponding touch sensors 5A and 5B.

  The controller 7 is for performing light emission control of the plurality of LED units B1 to B9, and includes a main control unit 71, a plurality of sub-control units 72, and a plurality of connectors 73 as input / output units. A plurality of LED units B <b> 1 to B <b> 9 and touch sensors 5 </ b> A and 5 </ b> B are connected to the controller 7 via a plurality of connectors 73. The controller 7 is supplied with direct-current power via, for example, the illustrated AC / DC converter.

  The main controller 71 incorporates a lighting program for the plurality of LED units B1 to B9. By receiving the detection signals S1 and S2 from the touch sensors 5A and 5B, the lighting states of the LED units B1 to B9 are as follows. Commands are individually sent to the plurality of sub-control units 72. The plurality of sub-control units 72 are provided so as to have a one-to-one correspondence with the LED units B1 to B9, and include, for example, LED drivers that perform lighting control of the LED modules 3 of the LED units B1 to B9.

  In the present embodiment, each of the plurality of LED units B1 to B9 connected independently to the plurality of sub-control units 72 constitutes a unit group referred to in the present invention. In other words, in this embodiment, only one of the plurality of LED units B1 to B9 belongs to each unit group. Unlike such a configuration, a plurality of LED units B1 to B9 may be connected to one sub-control unit 72 so that a plurality of LED units belong to the unit group.

  Next, lighting control of the plurality of LED units B1 to B9 by the controller 7 will be described below with reference to FIGS.

  The controller 7 has two modes, a normal mode and a demo mode, for lighting control of the plurality of LED units B1 to B9. FIGS. 5 and 6 show the lighting control in the normal mode. FIG. 7 shows lighting control in the demo mode.

  In the main controller 71, adjustable parameters for lighting the LED units B1 to B9 are set in advance. Specifically, the lighting time Ton, the lighting interval time Tin, the lighting duration time Tco, the extinguishing time Tof, and the maximum illuminance Lmax. The lighting time Ton is the time until the illuminances L1 to L9 of the LED units B1 to B9 change from 0 to Lmax. The lighting interval time Tin is a time from when one of the LED units B1 to B9 starts to light until the next LED unit B1 to B9 to be lit starts lighting. The lighting continuation time Tco is a time from when all the LED units B1 to B9 are turned on until the lighting is started. The turn-off time Tof is the time until the illuminances L1 to L9 change from Lmax to 0. The maximum illuminance Lmax is an illuminance obtained by multiplying an arbitrary ratio with respect to the maximum illuminance originally possessed by the LED modules 3 of the LED units B1 to B9.

  In addition, with regard to turning off the light, the illuminance reduction rate is gradually reduced rather than decreasing the illuminances L1 to L9 at a constant rate during the turn-off time Tof. Specifically, after the illuminances L1 to L9 are turned off until they reach 5% of the maximum illuminance Lmax, the reduction rate is gradually reduced stepwise from 1% to 0.1% of the maximum illuminance Lmax. ing. As a result, the light is turned off to give a smooth impression, not the impression that the light suddenly disappears immediately before it is completely turned off.

  As shown in FIG. 5, the controller 7 controls the illuminances L1 to L9 of the LED units B1 to B9 based on the detection signals S1 and S2 from the touch sensors 5A and 5B. First, at time t1, when a person who wants to climb the stair St in FIG. 1 touches the electrode 51A provided at the lower end of the handrail Hr, a detection signal S1 is sent from the touch sensor 5A to the controller 7. Then, the main control unit 71 sends a command to turn on the LED unit B1 to the sub-control unit 72 to which the lowest LED unit B1 among the LED units B1 to B9 is connected. The LED unit B1 starts lighting at time t1, and the illuminance L1 becomes the maximum illuminance Lmax after the lighting time Ton has elapsed.

  When the lighting interval time Tin elapses from the time t1 when the LED unit B1 starts lighting, the main control unit 71 issues a lighting command to the sub-control unit 72 to which the LED unit B2 to be turned on next is connected. send. Then, the LED unit B2 starts lighting, and the illuminance L2 becomes the maximum illuminance Lmax after the lighting time Ton. This sequential lighting control is performed on the LED units B1 to B9 according to these permutations. If the lighting interval time Tin is set to a time required for a person to go up the stairs St by one step, the LED units B1 to B9 are sequentially moved from the lowermost step of the stairs Sr toward the uppermost step as the person goes up. Light.

  At time t3, the uppermost LED unit B9 is turned on and is fully lit. This lighting state is maintained during the lighting duration time Tco. At time t4, a turn-off command is sent from the main control unit 71 to the sub-control units 72 connected to all the LED units B1 to B9. The illuminances L1 to L9 of the LED units B1 to B9 decrease from Lmax to 0 over the extinguishing time Tof. At time t5, all lights are turned off.

  In the normal mode, when the detection signal S1 is sent at time t1, the detection signal S1 from the touch sensor 5A is set to be ignored until it is completely turned off at time t5. Has been. For example, even if the detection signal S1 is sent again at time t2 while the LED units B1 to B9 are sequentially lit by the detection signal S1 at time t1, the sequential lighting control at that time is continued without being stopped.

  FIG. 6 shows another lighting control example in the normal mode. In the example shown in this figure, the lighting control of the case where the person who goes up the stairs St comes to the lowermost stage side and then the person who goes down the stairs St comes to the uppermost stage side is shown. In this case, when the detection signal S1 is sent at time t1, lighting control is sequentially performed from the LED unit B1 according to the above-described procedure.

  On the other hand, when a person touches the electrode 51B on the uppermost stage at time t2, which is a time before reaching the full lighting state, a detection signal S2 is sent. When receiving the detection signal S2, the main control unit 71 starts lighting sequentially from the LED unit B9 at the top of the permutation toward the lower side. That is, the LED units B1 to B9 are sequentially turned on from both sides in accordance with the movement of two persons coming from the lowermost stage side and the uppermost stage side of the staircase St. Then, at the time t3, the full lighting state is obtained. After that, after the lighting duration time Tco has elapsed, the LED units B1 to B9 start to be turned off all at once, and are completely turned off at time t5 after the turning-off time Tof.

  FIG. 7 shows lighting control in the demo mode. This mode is used, for example, in a case where a series of lighting is repeatedly repeated in a residential exhibition hall or a lighting equipment exhibition hall. When the detection signal S1 is sent at time t1, the main controller 71 starts lighting sequentially from the LED unit B1. However, when the detection signal S1 is sent again at time t2 before full lighting, the main control unit 71 sequentially stops lighting control and temporarily turns off all LED units B1 to B9. And after making it a total light extinction state, lighting is restarted sequentially from LED unit B1. Further, although not shown in the figure, when the detection signal S2 is sent during the sequential lighting, the lighting is started sequentially from the LED unit B9 after the forced full extinction.

  Next, the operation of the LED lighting device A1 will be described.

  According to the present embodiment, since the LED units B1 to B9 are turned on only when a person who goes up and down Stair St comes, the plurality of LED units B1 to B9 are turned off while there is no person going up and down Stair St. It can be in a state. Thereby, for example, it is not necessary to always turn on the plurality of LED units B1 to B9 in a relatively dark time zone from evening to night. Therefore, energy consumption can be reduced while appropriately illuminating the staircase St so that a person who goes up and down the staircase St does not accidentally fall down.

  When a person who goes up and down Stair St touches touch sensors 5A and 5B, the LED units B1 to B9 are lit in order from the one closest to that person. Thereby, for example, when a person starts to climb up the stairs St, it is possible to avoid unnecessarily illuminating the uppermost tread board Ps that the person has not yet approached. This is suitable for further reduction of energy consumption.

  As in the lighting control example described with reference to FIG. 6, even when a person comes from either the lowermost stage side or the uppermost stage side of the stair St, the step board Ps and the kick board Pk at the respective feet are provided. Can be properly illuminated. Further, as in the lighting control example shown in FIG. 5, when a person has already climbed the staircase St and a person who tries to climb the staircase St appears later, the detection signal S1 at the time t2 is ignored. Thus, there is no problem that the feet of the person climbing the staircase St in advance are unduly dark. Further, by keeping the already lit LED units B1 to B9 lit until they are all lit, it is possible to appropriately illuminate the feet of the person who is going up the stairs St later.

  By providing the demo mode shown in FIG. 7, it is possible to interrupt the lighting control when a relatively large number of visitors understand the contents of the lighting control of the LED lighting system A <b> 1 to a desired degree in a residential exhibition hall or the like. it can. Thereby, it is possible to avoid waiting a large number of visitors unnecessarily until a series of lighting control is completed.

  Since the lighting time Ton can be adjusted, it is possible to prevent an unnecessarily long time from reaching the maximum illuminance Lmax while avoiding giving a sudden impression of sudden lighting. Since the lighting interval time Tin can be adjusted, it is possible to sequentially turn on the light in accordance with the moving speed of the person using the LED lighting system A1. Since the lighting duration time Tco can be adjusted, it is possible to appropriately light the user until the user finishes moving the staircase St or the like. By adjusting the turn-off time Tof, it is possible to avoid giving a sudden impression that the turn-off time is suddenly turned off. The maximum illuminance Lmax. The lighting time Ton is a time until the illuminances L1 to L9 become 0 to the maximum illuminance Lmax. By adjusting the maximum illuminance Lmax, the brightness illuminated by the entire LED illumination system A1 can be adjusted to the user's preference.

  8 to 9 show other embodiments of the present invention. In these drawings, the same or similar elements as those in the above embodiment are denoted by the same reference numerals as those in the above embodiment.

  FIG. 8 shows an LED lighting system according to a second embodiment of the present invention. The LED illumination system A2 of this embodiment is different from the above-described embodiment in that it further includes a touch sensor 5C. The touch sensor 5 </ b> C is connected to the main controller 71 via the connector 73. The electrode 51C of the touch sensor 5C is attached to the handrail Hr in the vicinity of the landing, for example, at the stair St where the electrode 51A is attached to the lower end of the handrail Hr and the electrode 51B is attached to the upper end of the handrail Hr.

  With such a configuration, the controller 7 recognizes that the person who moves up and down the staircase St has reached not only that it is located on the lowermost stage side and the uppermost stage side of the staircase St, but has reached the middle of the staircase St. it can. Thereby, the adjustment of increasing or decreasing the degree of sequential lighting of the LED units B1 to B9 according to the movement of the person can be further performed.

  FIG. 9 shows an LED lighting system according to a third embodiment of the present invention. The LED illumination system A3 of the present embodiment is different from the above-described embodiment in that the LED illumination system A3 includes wireless units 6A and 6B that transmit a detection signal of the touch sensor 5C to the main control unit 71. The radio units 6A and 6B are radio communication devices that perform radio communication in the 2.4 GHz band, for example, and have a physical layer according to, for example, the IEEE 802.15.4 standard. The wireless unit 6A is connected to the main control unit 71, and functions as a so-called parent device. The wireless unit 6B is connected to the touch sensor 5C and plays a role as a so-called child device.

  According to such a configuration, the touch sensor 5C can be provided at a location relatively away from the controller 7 or the staircase St. For example, if the touch sensor 5C is installed in the hallway leading to the entrance or the staircase St in the residence, before the person comes near the staircase St, all of the LED units B1 to B9 are detected by the detection signal from the touch sensor 5C, or It is possible to perform control such that either one is in a slightly lit state.

  The LED illumination system according to the present invention is not limited to the above-described embodiment. The specific configuration of each part of the LED lighting system according to the present invention can be varied in design in various ways.

  The order in which the LED units B1 to B9 are installed on the plurality of treads Ps of the stair St is not limited to the order in the above-described embodiment. Contrary to the embodiment described above, the LED unit B1 may be installed on the uppermost tread Ps, and the LED unit B9 may be installed on the lowermost tread Ps.

  The sensor for detecting the traffic of people is not limited to the touch sensors 5A to 5C described above, and may be any means that can appropriately detect the presence of a person, such as a photoelectric sensor. The LED lighting system according to the present invention is suitable for staircase lighting, but its application is not limited to this, and a plurality of LED units are provided according to the movement of a moving object represented by a person, such as slope or sidewalk lighting. It can be used for various purposes of illuminating a target area by sequentially controlling lighting of (unit groups).

A1-A3 LED lighting system B1-B9 LED unit Hr Handrail L1-L9 Illuminance Pk Kick plate Ps Tread plate S1, S2 Sensor output signal (detection signal)
St Step 1 Case 2 Substrate 3 LED module 4 Diffuser 5A, 5B, 5C Touch sensor 6A, 6B Wireless unit 7 Controller 51A, 51B, 51C Electrode 71 Main controller 72 Sub controller 73 Connector

Claims (12)

A plurality of LED units each comprising a plurality of LED chips;
A controller that is connected to the plurality of LED units and recognizes the plurality of unit groups that are assigned IDs for identifying the plurality of LED units, and performs lighting control for each unit group. When,
One or more sensors for outputting an output signal used for lighting control of the plurality of unit groups to the controller;
Provided with a,
The plurality of unit groups are given permutations by the ID,
With the above two sensors,
When receiving the output signal from one of the sensors, the controller lights the plurality of unit groups in order from the highest unit group in the permutation, and receives the output signal from the other sensor in the permutation. The plurality of unit groups are lit in order from the lower unit group, and
The controller turns on a new output signal from the sensor until the plurality of unit groups are turned off after the lighting of the plurality of unit groups is started by an output signal from one of the two sensors. After the lighting of the plurality of unit groups is started by the normal mode not used for control and the output signal from one of the two sensors, the new unit from the sensor is turned on until the plurality of unit groups are turned off. An LED lighting system, comprising: a demo mode that, upon receiving an output signal, immediately turns off the plurality of unit groups and then resumes lighting control . Said plurality of unit groups are provided on the upper side of the step plate of the staircase as those that are higher in the permutation, is provided on the lower side of the step plate of the staircase as those that are lower in the permutation, according to claim 1 LED lighting system. Said plurality of unit groups are provided on the upper side of the step plate of the staircase as those that are lower in the permutation, is provided on the lower side of the step plate of the staircase as those that are higher in the permutation, according to claim 1 LED lighting system. The LED lighting system according to any one of claims 1 to 3 , wherein the controller is capable of adjusting a lighting speed when lighting each unit group. 5. The LED lighting system according to claim 1, wherein the controller is capable of adjusting a lighting start time difference between two unit groups adjacent in the permutation. 6. The controller is turned off speed is adjustable, LED lighting system according to any one of claims 1 to 5 when turning off the respective unit groups. The controller is capable of adjusting the maximum illuminance of the respective unit groups, LED lighting system according to any one of claims 1 to 6. The controller maintains the lighting state of each of the unit groups that has been lit until all of the plurality of unit groups are in a lighting state after starting lighting of either the top or the lowest unit group. , LED lighting system according to any one of claims 1 to 7. The LED lighting system according to claim 8 , wherein the controller is capable of adjusting a total lighting maintenance time from the time when all of the plurality of unit groups are turned on to the start of turning off. Further comprises additional sensors, LED lighting system according to any one of claims 1 to 9. 11. The LED lighting system according to claim 10, wherein when the controller receives an output signal from the additional sensor, the controller starts lighting any one of the plurality of unit groups other than the highest and lowest in the permutation. . The LED lighting system according to claim 10 , wherein an output signal of the additional sensor is wirelessly sent to the controller.

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