JP2005063859A - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting control system for enabling a sure remote-control communication with a low infrared light-emission output without being affected by an installation environment of a lighting fixture, and with wiring such as signal wires done away with. <P>SOLUTION: The lighting control system constituted so as to sequentially send infrared signals to a plurality of lighting fixtures 20 from one main unit 10, in which infrared signals transmitted form the main unit 10 to the lighting fixtures 20 and those transmitted from the lighting fixtures 20 other lighting fixtures 20 are transmitted as direct light without accompanying reflection, is provided with a plurality of the main units. Furthermore, each main unit 10 has a specific address set and produces and outputs information of a light-control level or a control and the infrared signals including the main unit address, while each lighting fixture 20 has either of the main unit addresses set, and controls its own lamp output when the main unit address set and the main unit address included in the infrared signals received coincide. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a lighting device that enables wiring between lighting fixtures to be eliminated by using an infrared signal without using a dimming signal line or a control signal line in an illumination control system that interlocks and controls a large number of lighting fixtures. is there.

  FIG. 20 shows a conventional example of a lighting control system that interlocks and controls a large number of lighting fixtures. In this system, a plurality of lighting fixtures 20 are interlocked and controlled by the control device 10 serving as a master unit. However, it is necessary to connect the control device 10 serving as the master unit and the plurality of lighting fixtures 20 via a control signal line 14. There is a problem that construction is expensive. Moreover, the lighting fixture 20 is an existing fluorescent lamp fixture, and there has been a problem that it takes time to change it.

  Therefore, in Japanese Patent Application Laid-Open No. 2002-260876, as shown in FIG. 21, a remote control signal R emitted from a lighting fixture 20 is reflected on the floor surface, and the reflected light r is received by the next lighting fixture 20. Thus, a technique for performing communication control between lighting fixtures is disclosed. In the figure, 20 is a lighting fixture, and includes a fluorescent lamp, its lighting device, an infrared receiver and an infrared transmitter. Reference numeral 30 denotes a remote controller. F indicates the floor surface.

  In this configuration, the remote control 30 transmits a control signal including a dimming signal indicating the brightness of the fluorescent lamp as an infrared remote control signal R. The light control signal from the remote controller 30 is received by an infrared receiver provided in the lighting fixture 20. The lighting device of the luminaire 20 sets its own fluorescent lamp to the dimming degree received, and transmits the received infrared remote control signal R, that is, the same signal R as the infrared signal transmitted from the remote control 30, from the infrared transmission unit. . The infrared rays transmitted from the lighting fixture 20 are reflected by the floor surface F and sent to the adjacent lighting fixture 20. Similarly, the other lighting fixtures 20 receive the infrared reflected light r, adjust the light of their fluorescent lamps, and transmit the infrared remote control signal R. As described above, the control signals generated from the remote controller 30 are sequentially sent to the adjacent lighting fixtures 20 by infrared rays, and all the lighting fixtures 20 are dimmed, so that the wiring of the control signal lines 14 is not necessary. Become.

In Patent Literature 1, in the lighting control device, it is proposed to assign an address to a transmission signal from the master unit to the lighting fixture. This address is an address for identifying the lighting fixture, and a plurality of addresses are identified. It is not an address for identifying the master unit on the luminaire side.
Japanese Patent Laid-Open No. 3-250589

  In the conventional example, as shown in FIG. 21, the remote control signal R transmitted from the lighting fixture 20 is reflected by the floor surface F, and the reflected light r is sent to the adjacent lighting fixture 20. In order for the remote control signal emitted from the ceiling surface to be reflected on the floor surface and to return to the ceiling surface, it is necessary to increase the power of the remote control signal. For this reason, it is necessary to provide a plurality of infrared light emitting LEDs.

  Further, even if the reflection is made on the floor surface, if the reflectance of the floor surface is low, the remote control signal emitted from the ceiling surface is not reflected on the floor surface and may not return to the ceiling surface. Therefore, it is necessary to increase the power of the infrared light emission output in consideration of the case where the reflectance of the floor surface is low.

  Conversely, when the infrared light emission output is large and the floor surface reflectance is in an average state, the remote control signal jumps too much, so it easily collides with the remote control signal from other remote lighting fixtures, and communication Problems such as a high probability that it takes time to reach the remote control signal due to traffic congestion.

  The present invention has been made in view of the above points, and enables reliable remote control communication with a small infrared emission output without being affected by the environment in which the luminaire is installed, and wiring such as signal lines. It is an object of the present invention to provide a lighting control system that does not require the above.

  In the present invention, in order to solve the above-mentioned problem, as shown in FIG. 11, the infrared signal transmission unit 12 for transmitting an infrared signal is provided, and the dimming level or control / monitoring function for the lighting fixture is provided. The base unit 10 that transmits information by an infrared signal, the infrared signal receiving unit 21 that receives an infrared signal from the base unit 10 or another lighting fixture 20, and the other infrared fixture 20 that relays the received infrared signal. The lighting apparatus 20 includes an infrared signal transmission unit 22 that transmits an infrared signal and an appliance control unit 23 that controls the output of the lamp 25 according to the received infrared signal. As illustrated in FIG. Infrared signals are sequentially transmitted from one master unit 10 to a plurality of lighting fixtures 20, and the infrared signal transmitted from the master unit 10 to the lighting fixture 20 is directly reflected from the master unit 10 without being reflected. The infrared signal transmitted to 0 and transmitted from the lighting fixture 20 to the other lighting fixture 20 is a lighting control system that is transmitted between the lighting fixtures 20 as direct light without reflection, as shown in FIG. A plurality of master units are provided, and each master unit 10 is set with a unique master unit address, and creates an infrared signal including information related to the dimming level or control and the master unit address for the lighting fixture 20 The lighting device 20 is set with any parent device address in the device control unit 23, and the parent device address set and the parent signal included in the received infrared signal are included. When the machine address matches, the output of its own lamp is controlled.

According to the invention of claim 1, by adding an address to the master unit, even when the master unit is different and lighting fixtures having the same address are adjacent to each other, infrared signal communication can be reliably performed without any problem.
According to the invention of claim 2, by changing the wavelength of infrared light in different illumination control units in the master unit, infrared signal communication can be reliably performed without problems in adjacent illumination control units.
According to the invention of claim 3, by changing the frequency of the subcarrier of the infrared signal in a different illumination control unit, the infrared signal can be reliably communicated without problem in the adjacent illumination control unit.
According to the invention of claim 4, by shifting the timing of transmitting infrared signals, the probability that the infrared signals physically collide with each other can be greatly reduced, and infrared signal communication can be performed more reliably. It became so.

According to the invention of claim 5, by synchronizing the master units, it is possible to greatly reduce the probability that the infrared signals physically collide with each other, so that the infrared signal communication can be performed more reliably. Became.
According to the invention of claim 6 or 7, by making the communication direction of the infrared signal bi-directional, the master unit can check the control state of the luminaire, and each control unit can check whether the control state is desired. The lighting fixtures can be confirmed, more reliable lighting control is possible, and interlocking control between the lighting fixtures is also possible.
According to the invention of Claim 8 or 9, the lighting device in the subordinate mode is controlled only by the lighting device in the determined independent mode, and the number of the subordinate mode and the independent mode is set arbitrarily, so that the appropriate lighting can be easily performed. The interlocking control of the instrument became possible.

According to the invention of claim 10, data can be exchanged between the master unit or the lighting fixture and the remote control transmitter / receiver arranged in the lower surface direction, and the infrared signal used for communication between the lighting fixtures. Using the transmitter / receiver, it is easy to confirm the control information of the lighting fixture or the master unit and to set the lighting fixture or the master unit with the remote control transmitter / receiver.
According to the invention of claim 11, by using the remote control transceiver, it is possible to control the subsequent lighting fixtures even from the lighting fixtures on the way.
According to the invention of claim 12, by detecting the luminance of the adjacent lighting fixture and controlling the luminance of the lighting fixture to match the detected luminance, the plurality of lighting fixtures have the same luminance. It became possible to control.

  As shown in FIG. 1, the lighting device of the present invention combines at least one master unit 10 and a plurality of lighting fixtures 20 and sequentially transmits infrared signals from the master unit 10 to the plurality of lighting fixtures 20. In the lighting control system, an infrared signal transmitted from the base unit 10 to the lighting fixture 20 is transmitted from the base unit 10 to the lighting fixture 20 as direct light without being reflected, and from the lighting fixture 20 to another lighting fixture 20. The transmitted infrared signal is also transmitted between the luminaires 20 as direct light without being reflected.

  As shown in FIG. 2, the infrared signal transmission / reception unit has a structure in which each of the reception unit 21, the transmission unit 22, and the transmission / reception unit 23 can rotate 360 ° in a horizontal plane. This is a structure for transmitting an infrared signal as direct light toward a target luminaire by setting an infrared signal transmission / reception direction to an arbitrary direction. Further, the length Lt from the infrared light emitting element LED of the transmission unit 22 to the opening, the diameter φt of the opening, the length Lr from the infrared light receiving element PD of the receiving unit 21 to the opening, and the diameter φr of the opening are adjusted. Thus, a predetermined infrared signal transmission range and infrared signal reception range are set. For example, the lengths Lt and Lr from the element to the opening can be adjusted by making the element slidable with respect to the opening. Further, by adding an optical aperture (iris) to the opening, the openings φt and φr can be adjusted.

  FIG. 3 shows an infrared signal transmission format proposed in our earlier application (Japanese Patent Application No. 2003-105815). In this example, the lighting device's own address 44 is added to the basic format in which several bytes of data 42 are sent between the reader 41 and the trailer 43. In this way, the self address number is added to the infrared signal, and the infrared signal is output to the subsequent lighting apparatus. As shown in FIG. 4, each luminaire is assigned an address number that increases in the order in which the infrared signal is transmitted, and each luminaire is transmitted by adding its own address number to the transmission format of the infrared signal. When each luminaire receives an infrared signal, the luminaire receives only the infrared signal of the address number obtained by subtracting its own address number by one and controls the luminaire or relays the infrared signal. For example, a lighting fixture with an address number of 1 accepts only a remote control signal with an address number of 0. In this way, when there are two or more lighting fixtures in the transmission direction of the infrared signal, even if the infrared signal arrives other than the original lighting fixture, it will not receive and process it. Thus, communication using infrared signals can be performed reliably.

  However, as shown in FIG. 5, in the unit controlled by different master units, when the transmission direction of the infrared signal is the same and the luminaires with the same address number are adjacent to each other, depending on the conditions, the same address number There was a risk that the luminaire would pick up the infrared signal from the luminaire of the previous address number at the same time. Moreover, the lighting fixture of a different control unit may approach extremely.

  Therefore, as shown in FIG. 5, address numbers (parent addresses) are set for a plurality of parent devices, and the address numbers of the parent devices that are to be controlled are stored on the lighting fixture side. That is, the address number of the master unit and its own address number are stored on the lighting fixture side. As for the format of the infrared signal, as shown in FIG. 6, the address number of the master unit to be controlled and its own address number are added and output. In this example, the lighting device's own address 44 and the parent device's parent address 45 are added to the basic format in which several bytes of data 42 are sent between the reader 41 and the trailer 43.

  In the lighting fixture, the address number of the set master device matches the address number of the master device of the received infrared signal, and the self address set to “self address number-1” of the received infrared signal When the number matches, the data is taken in and controlled, and the infrared signal is retransmitted to the subsequent lighting apparatus. No processing is performed even if an infrared signal with any other address number is received. In FIG. 5, the address: ij means a combination of the parent address i (= 1, 2, 3) and the own address j (= 0, 1, 2, 3, 4). In addition, the white circles in the figure mean the master unit, and the white rectangles mean the lighting fixtures, but all or part of the master unit may be replaced with lighting fixtures.

  According to the present invention, it is possible to reliably perform infrared signal communication without problems even when the master unit is different and lighting fixtures having the same address number are adjacent to each other.

  Here, the case where the address numbers of the lighting fixtures are increased in order has been described. However, the same can be applied to the case where the address numbers are reduced in order. In this case, each lighting fixture is addressed to the master unit. And only the remote control signal to which the address number “self address number + 1” is added may be received and processed.

  As another means for solving the same problem as described in FIG. 5, as shown in FIG. 7, the transmission wavelength peak of the infrared light emitting element (LED) and the reception wavelength peak of the infrared light receiving element (PD) are 900 to By changing between 950 nm for each illumination control unit controlled by the master unit, it is possible to prevent communication from being disabled due to collision of infrared signals. At least two patterns of wavelengths are switched at least in adjacent illumination control units.

As a means for changing the wavelength peak, the wavelength of the element itself of the infrared light emitting element (LED) or the infrared light receiving element (PD) is selected. Alternatively, the wavelength used for infrared signal communication is changed by placing a filter in front of the element and changing the wavelength of infrared light passing through the filter. In FIG. 7, Ft is a transmission side filter, and Fr is a reception side filter. LED is a light emitting diode, PD is a photodiode, Tr is a transistor, and OP is an operational amplifier. In the infrared signal transmission unit, the transistor Tr is turned on / off by infrared signal data, whereby the light emitting diode LED blinks, and infrared light having a wavelength that has passed through the transmission filter Ft is transmitted. In the infrared signal reception unit, infrared light having a specific wavelength that has passed through the reception-side filter Fr is received by the photodiode PD, amplified by the operational amplifier OP, and infrared signal data is received.
According to the present embodiment, infrared signal communication can be reliably performed without problems even when illumination control units with different master units are adjacent to each other.

  As another means for solving the same problem as described in FIG. 5, as shown in FIG. 8, the infrared signal transmission unit obtains the logical product of the subcarrier of the predetermined frequency f and the infrared signal data by an AND circuit. Thus, by turning on / off the transistor Tr with the infrared signal data modulated by the subcarrier, the light emitting diode LED blinks and an infrared signal is transmitted. On the receiving side, an infrared signal is detected by a light receiving element such as a photodiode PD, the detection signal is amplified by an amplifier circuit OP, and only an infrared signal having a desired subcarrier frequency is selected by a filter circuit FL having a bandpass characteristic. Receive automatically. By changing the frequency of the subcarrier (33 KHz to 40 KHz) in adjacent illumination control units controlled by the master unit, it is possible to prevent communication from being disabled due to collision of infrared signals. At least two patterns of sub-carriers are switched at least in adjacent illumination control units.

The infrared signal transmission unit may be configured to create a subcarrier by a timer in the microcomputer, take an AND of the subcarrier and the infrared signal data, and output the result as an infrared signal from a port of the microcomputer. In this case, the frequency of the subcarrier can be changed by changing the period of the timer built in the microcomputer.
According to the present embodiment, infrared signal communication can be reliably performed without problems even when illumination control units with different master units are adjacent to each other.

  In this embodiment, as shown in FIG. 5, when lighting devices having the same transmission number of infrared signals and the same address number are adjacent to each other in units controlled by different parent devices, each parent device is addressed. A number is assigned, and the address number of the master unit to be controlled by itself is stored on the lighting fixture side. As for the format of the infrared signal, as shown in FIG. 6, the address number of the master unit to be controlled and its own address number are added and output. In the lighting fixture, the address number of the set master device matches the address number of the master device of the received infrared signal, and the self address set to “self address number-1” of the received infrared signal If the number matches, the data is taken in and controlled, and the signal is retransmitted to the subsequent lighting fixture. No processing is performed even if an infrared signal with any other address number is received. In FIG. 5, all or a part of the master unit may be replaced with a lighting fixture.

  By the way, if infrared signals are sent simultaneously between neighbors, even if there is no logical problem, the infrared signals may physically collide and communication may not be possible. In the logic, the timing for outputting the infrared signal is controlled as follows.

  As shown in FIG. 9, Tsec is one period, this Tsec is time-divided into, for example, 10 sections, and (T / 10) sec is divided into one, and each control logic has a time division of 1 to 10 Among them, it is determined using a random number at which timing an infrared signal is transmitted. As a result, the probability that the infrared signal physically collides is reduced to 1/10.

  According to the present embodiment, the probability that infrared signals physically collide with each other or the like can be greatly reduced, and infrared signal communication can be performed more reliably.

  In this embodiment, as shown in FIG. 5, when lighting devices having the same transmission number of infrared signals and the same address number are adjacent to each other in units controlled by different parent devices, each parent device is addressed. A number is assigned, and the address number of the master unit to be controlled by itself is stored on the lighting fixture side. As for the format of the infrared signal, as shown in FIG. 6, the address number of the master unit to be controlled and its own address number are added and output. In the lighting fixture, the address number of the set master device matches the address number of the master device of the received infrared signal, and the self address set to “self address number-1” of the received infrared signal If the number matches, the data is taken in and controlled, and the signal is retransmitted to the subsequent lighting fixture. No processing is performed even if an infrared signal with any other address number is received. In FIG. 5, all or a part of the master unit may be replaced with a lighting fixture.

  By the way, if infrared signals are sent simultaneously between neighbors, even if there is no logical problem, the infrared signals may physically collide and communication may not be possible. In the logic, the timing for outputting the infrared signal is controlled as follows.

  As shown in FIG. 10, the master units are synchronized with each other with a synchronization signal, and the timing for outputting the infrared signal is shifted so that the infrared signal does not collide. In the example of FIG. 10, any one parent device becomes a master and outputs a synchronization signal, and the other parent devices input a synchronization signal as a slave. When the first synchronization signal is input, for example, the parent device having the parent device address 1 outputs an infrared signal. When the second synchronization signal is input, the parent device having the parent device address 2 outputs an infrared signal. Thereafter, similarly, the different master units sequentially output infrared signals. In this way, by synchronizing the timing of infrared signal output between the master units, even if the lighting fixtures of the system controlled by different master units are adjacent to each other, the infrared signals can be controlled without colliding with each other. .

  According to the present embodiment, the probability that infrared signals physically collide with each other or the like can be greatly reduced, and infrared signal communication can be performed more reliably.

  FIG. 11 shows a block diagram of the master unit of this embodiment. A portion surrounded by a broken line is added for bidirectional communication. In the base unit 10, the infrared signal transmission unit 12 outputs a control signal for the lighting fixture 20 as an infrared signal. Moreover, when the infrared signal is replied from the lighting fixture 20, the infrared signal receiving part 13 which receives this infrared signal is provided. The base unit control unit 11 is configured by a microcomputer or the like, and the above-described base unit address is set.

  In the lighting fixture 20, the infrared signal from the main | base station 10 or the other lighting fixture 20 is received by the infrared signal receiving part 21, and it converts into a digital signal. FIG. 6 shows the format of the infrared signal. Several bytes of data 42 and addresses 44 and 45 are sent between the reader 41 and the trailer 43. The instrument control unit 23 reads and interprets the infrared signal data 42 and the addresses 44 and 45. In accordance with the result, a control signal is sent to the dimming stabilizer 24 to control dimming / flashing of the lamp 25. In addition, data to be sent to the next lighting fixture 20 is prepared and sent to the infrared signal transmission unit 22. The infrared signal transmission unit 22 converts the digital signal from the appliance control unit 23 into an infrared signal and transmits the infrared signal. In addition, when an infrared signal is returned from another lighting fixture 20, an infrared signal return receiving unit 26 is provided for receiving the infrared signal. In the appliance control unit 23, when an infrared signal is returned from another lighting fixture 20, the infrared signal return transmission unit 27 sends back the infrared signal in the opposite direction.

  As a result, two-way communication is possible, and it is possible to monitor the lighting fixture from the master unit or to control the lighting fixture by receiving detection information from a sensor provided in the lighting fixture by the master unit. Hereinafter, an illumination control system using these two-way communications will be described.

  For example, as shown in FIG. 12, when a command including a monitoring information return request and a monitoring target lighting fixture address is sequentially sent to the lighting fixture 20 as an infrared signal so as to return monitoring information from the base unit 10, The illuminating device that has become the same, that is, the illuminating device having the same illuminating device address to be monitored, sends the monitoring information to the previous luminaire with an infrared signal. This monitoring information is sequentially transmitted between the luminaires as an infrared signal, and finally reaches the master unit. Thereby, each lighting fixture can be monitored from a main | base station.

  Further, as shown in FIG. 13, by providing each lighting fixture with a human sensor N and a brightness sensor S, the value of the brightness sensor can be set to a desired brightness based on the presence / absence detection information of the person in each lighting fixture. Thus, control such as feedback is performed so as to adjust the lamp light output. Or interlock control between lighting fixtures can be performed by controlling each lighting fixture based on the detection information of the sensor of each lighting fixture sequentially from a main | base station.

  According to the present embodiment, the master unit can check the control state of the lighting fixture, and can check for each lighting fixture whether it is the control state desired by the master unit, thereby enabling more reliable lighting control. In addition, interlocking control between lighting fixtures has become possible.

  FIG. 14 shows an embodiment using independent addresses and dependent addresses. FIG. 15 shows the format of the infrared signal of this embodiment. In this embodiment, an independent address 46 is added in addition to the own address 44 and the parent device address 45. Here, the independent address means an address of a group that can be controlled independently in one system passing through a plurality of lighting fixtures from one master unit. One independent address is set for the master unit, and a subordinate address is set for each lighting fixture, or an independent address different from that for the master unit is set. The luminaire set with the subordinate address enters the subordinate mode, and is controlled by the master unit or the luminaire of the corresponding independent address. The luminaire set with the independent address enters the independent mode, and transmits a control command to the subsequent luminaire. The lighting device in the subordinate mode takes in and controls the control command of the corresponding independent address, and does not process the infrared signal of the independent address that does not correspond, and retransmits it to the subsequent lighting device.

  A specific example of address setting will be described with reference to FIG. In FIG. 14, white circles indicate the master unit, white rectangles indicate the lighting fixtures, A, B, and C are independent addresses, and a, b, and c are subordinate addresses. The luminaire to which the subordinate address a is added is controlled by a control command from the master unit to which the independent address A is added. The lighting fixtures to which the subordinate addresses b and c are added are controlled by control commands from the lighting fixtures to which the independent addresses B and C are added, respectively.

  According to the present embodiment, the lighting device in the subordinate mode is controlled only by the lighting device in the determined independent mode, and the dependent / independent address is arbitrarily set, so that the appropriate interlocking control of the lighting fixture can be easily performed. It becomes possible.

  FIG. 16 is an example in which control by the remote control transmitter / receiver 30 is added to an illumination control system including the master unit 10 and a plurality of lighting fixtures 20. FIG. 17 shows a longitudinal sectional structure of the infrared signal transmitting / receiving unit 23 in the present embodiment. In the present embodiment, the infrared signal from the lower surface can be reflected using the mirror surface M <b> 1 and taken into the light receiving element PD of the infrared signal receiving unit 21. Further, the infrared signal from the light emitting element LED of the infrared signal transmission unit 22 can be reflected by the mirror surface M2, and the infrared signal can reach the lower surface.

  In the system as shown in FIG. 16, when the remote controller transceiver 30 monitors the setting (address setting, etc.) and the control state of the master unit 10 and the lighting fixture 20, it is used for infrared signal communication between the lighting fixtures 20. The infrared signal transmission / reception unit 23 is configured as shown in FIG. 17 so that data can be exchanged between the main unit 10 or the lighting fixture 20 and the remote control transmission / reception unit 30 arranged in the lower surface direction. Become. That is, the infrared signal transmission / reception unit 23 used for communication between the lighting fixtures 20 is diverted to easily check the control information of the master unit 10 or the lighting fixture 20 with the remote control transmitter / receiver 30, or the master unit 10 or the lighting fixture 20 Can now be set to.

  In each of the above-described embodiments, the combination of the remote control transmitter / receiver 30 and the lighting fixture 20 of the seventh embodiment can be replaced with the master device 10 and controlled. In that case, the address of the remote control transceiver 30 may be set instead of the parent address of FIG. In the first and second embodiments, the wavelength and subcarrier of the infrared signal may be changed or switched for the remote control transceiver 30. Moreover, in Example 5, since communication between lighting fixtures is performed bidirectionally, it is possible to send a control command to all the lighting fixtures even from a lighting fixture in the middle and control it. In the sixth embodiment, in addition to the dependent / independent address, the address of the remote control transceiver 30 can be provided, and the lighting device 20 controlled only by the remote control transceiver 30 can be provided.

  In the present embodiment, as shown in FIG. 18, each lighting fixture 20 is provided with a sensor 50 that senses the brightness of the lamp of the adjacent lighting fixture or the reflection surface of the lighting fixture. The structure of the sensor 50 is an optical structure that can detect only the lamp and the reflecting surface of the adjacent lighting fixture as shown in FIG. In the figure, 50 is a luminance sensor, 51 is a light receiving element, 52 is a rotation axis, and H is an opening. In addition, the opening part H has a movable mechanism so that it can slide to an up-down direction, and can measure the brightness | luminance of an adjacent lighting fixture exactly. Based on the brightness detected by the brightness sensor 50, a table for adjusting its own light output is provided on the luminaire side, and the light output of its own luminaire is determined according to the detected brightness. In this way, it is possible to detect the luminance of the adjacent lighting fixture and adjust the luminance of the own lighting fixture, and thereby it is possible to control a plurality of lighting fixtures to have the same luminance.

  The present invention can be used to control a relatively large lighting system such as a store or an office.

It is a figure which shows the whole structure of the illuminating device of this invention, (a) is the bottom view which looked at the ceiling surface from the downward | lower direction, (b) is the side view which looked at the ceiling surface from the side. It is sectional drawing which shows schematic structure of the infrared signal transmission / reception part used for this invention. It is explanatory drawing which shows an example of the signal format used for this invention. It is explanatory drawing of the own address used for this invention. It is explanatory drawing of the parent address used for this invention, and a self address. It is explanatory drawing which shows another example of the signal format used for this invention. It is a circuit diagram which shows an example of the infrared signal transmission / reception part used for this invention. It is a circuit diagram which shows another example of the infrared signal transmission / reception part used for this invention. It is explanatory drawing of the timing of the infrared signal output in this invention. It is explanatory drawing of the infrared signal output using the synchronizing signal in this invention. It is a block diagram which shows the structure of the main | base station used for this invention, and a lighting fixture. It is explanatory drawing of the bidirectional | two-way communication in this invention. It is explanatory drawing of the sensor control in this invention. It is explanatory drawing of the independent and subordinate address in this invention. It is explanatory drawing which shows another example of the signal format used for this invention. It is explanatory drawing of control by the remote control transmitter-receiver in this invention. It is explanatory drawing which shows the structure for transmission / reception with respect to the remote control transmitter / receiver in this invention. It is explanatory drawing of the illumination intensity control by the brightness | luminance detection in this invention. It is sectional drawing which shows schematic structure of the sensor used for the brightness | luminance detection in this invention. It is a schematic block diagram of the prior art example 1. It is a schematic block diagram of the prior art example 2.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Parent machine 11 Parent machine control part 12 Infrared signal transmission part 20 Lighting fixture 21 Infrared signal reception part 22 Infrared signal transmission part 23 Appliance control part 25 Lamp 30 Remote control transceiver

Claims (12)

A master unit that includes an infrared signal transmission unit that transmits an infrared signal, and transmits a dimming level or information for control / monitoring with the infrared signal to the lighting fixture;
In response to the received infrared signal, an infrared signal receiving unit that receives an infrared signal from the base unit or another lighting device, an infrared signal transmitting unit that relays the received infrared signal and transmits the infrared signal to another lighting device, and And a lighting fixture having a fixture control unit for controlling the output of its own lamp,
It is configured to sequentially transmit infrared signals from one master unit to a plurality of lighting fixtures, and infrared signals transmitted from the master unit to the lighting fixtures are transmitted from the master unit to the lighting fixtures as direct light without reflection, An infrared control signal transmitted from a lighting fixture to another lighting fixture is a lighting control system that is transmitted between the lighting fixtures as direct light without reflection,
There are multiple master units,
Each parent device is provided with a parent device control unit which is set with a unique parent device address, and generates and outputs an infrared signal including information on the dimming level or control and the parent device address with respect to the luminaire.
The lighting device is set with any parent device address in the device controller, and controls the output of its own lamp when the set parent device address matches the parent device address included in the received infrared signal. It is comprised so that it may carry out, The illuminating device characterized by the above-mentioned. 2. The infrared signal transmission unit of at least an adjacent parent device has a different wavelength of the carrier wave of the infrared signal, and the infrared signal reception unit on the luminaire side has a wavelength of the carrier wave of the infrared signal from the parent device to be controlled. Is configured to selectively receive the illumination device. 2. The infrared signal transmission unit of at least the adjacent base unit has a different subcarrier frequency of the infrared signal, and the infrared signal reception unit on the luminaire side sets the frequency of the subcarrier from the base unit to be controlled. An illumination apparatus configured to selectively receive an infrared signal having the same. 4. The lighting device according to claim 1, wherein at least infrared signal transmitting units of adjacent base units transmit infrared signals at a timing that does not overlap each other. 5. The lighting device according to claim 4, wherein a common synchronization signal is input to the plurality of parent devices, and each of the parent devices transmits infrared signals at a timing that does not overlap each other by the synchronization signal. In any one of Claims 1-5, the main | base station is equipped with the infrared signal receiving part for receiving the infrared signal for a reply from a lighting fixture, and each lighting fixture has the infrared signal transmission / reception part for a infrared signal return. An illuminating device characterized in that an infrared signal can be transmitted in both directions. 7. The lighting device according to claim 1, wherein the at least one lighting fixture includes a human sensor or a brightness sensor, and controls light output of the lamp based on detection information of the sensor. In any one of Claims 1-7, each lighting fixture is a mode setting part in which either the independent mode which transmits a control command with an infrared signal, and the subordinate mode which receives a control command with an infrared signal, A mode number setting unit for setting the independent mode or subordinate mode number is controlled, and the subordinate mode lighting apparatus is controlled by the independent mode lighting apparatus or the master unit having the same mode number. 9. The lighting device according to claim 8, wherein information of an independent mode number is added to an infrared signal transmission format. The lighting device according to claim 1, wherein the infrared signal transmission / reception unit of the lighting fixture or the parent device has directivity for transmission or reception of the infrared signal also in the lower surface direction. 11. The lighting device according to claim 1, wherein at least one parent device is replaced with a lighting fixture having an infrared signal transmission function. In any one of Claims 1-11, each luminaire is equipped with the brightness sensor in the inside or the exterior of a luminaire so that the brightness | luminance of the lamp | ramp or reflector of an adjacent luminaire may be detected, A lamp device that controls the lamp output so that the luminance of the lighting device matches the luminance of the lighting device.

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