JP2009158116A - Illumination control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination control system capable of controlling operation of a plurality of numbers of illumination fixtures by one unit of management device regardless of a system of a direct current supply line to be connected. <P>SOLUTION: The illumination fixture 1 has a communication means 7 to carry out communication with the management device 9 via the direct current supply line Wdc, an ID retaining means 12 to retain a proper identifier, and an operation controlling means 13 of sending the identifier and a demand signal retained in the ID retaining means 12 to the management device 9 when receiving an instruction of control of a lighted state of the light source 2, and controlling a lighted state of the light source 2 according to the instruction when receiving a permission signal from the management device 9. The management device 9 has the communication means 14 to carry out communication between the communication means 7 of the illumination fixture 1, an ID memorizing means 15 of memorizing the identifier of the respective illumination fixtures 1, and a collating means 16 of collating the identifier obtained from the illumination fixtures 1 when receiving the demand signal from the respective illumination fixtures 1 and the identifier in the ID memorizing means 15, and of returning the permission signal to the illumination fixtures 1 if they are coincident. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention comprises a plurality of lighting fixtures connected to a DC power source via a DC supply line, and a management device connected to the plurality of lighting fixtures via a DC supply line, and the plurality of lighting fixtures The present invention relates to a lighting control system that centrally controls appliances with a management device.

  Conventionally, the power supply line of each system is provided with a management device (distribution panel) equipped with a branch breaker that can be opened and closed for each power supply line that branches and supplies power to a lighting fixture into multiple systems. There is known a lighting control system capable of centrally controlling the operation of connected lighting fixtures by controlling the opening and closing of each branch breaker (see, for example, Patent Document 1).

  When this type of lighting control system is applied to a building such as a tenant building in which the inside of a building is divided into a plurality of zones A to C as shown in FIG. Generally, a track is laid and the lighting state of the luminaire 1 can be controlled (switching on / off) for each of the zones A to C by opening and closing each branch breaker of the management device 9.

By the way, the applicant of the present application converts an AC power source such as a commercial power source into a DC power source by an AC / DC converter disposed in a distribution board, and converts it into a DC outlet such as a DC outlet having a pair of positive and negative power feeding parts. On the other hand, a DC distribution system that distributes DC power from a distribution board via a DC supply line is proposed. When this type of DC power distribution system is adopted in the above-mentioned tenant building and the above-described lighting control system is applied, if the DC supply line Wdc of a different system is laid for each of the zones A to C, the management device 9 Operation | movement of the lighting fixture 1 can be controlled for every AC. In addition, this lighting fixture 1 shall operate | move by receiving supply of DC power.
JP 63-7145 A (page 2-3)

  However, in the lighting control system of FIG. 5, the layout of each of the zones A to C may be changed by, for example, reforming, and in this case, one system DC supply line Wdc straddles a plurality of zones A to C. May take the form. For example, when the zone B is divided into two zones B1 and B2 as indicated by broken lines in FIG. 5 due to the layout change, the DC supply line Wdc corresponding to the zone B before the layout change is changed to the two zones B1, B1. It will straddle B2.

  Therefore, in the above-described illumination control system that controls the operation of the lighting fixture 1 for each system of the DC supply line Wdc, it is necessary to change the wiring of the DC supply line Wdc in accordance with the change in the layout of the zones A to C. Since the DC supply line Wdc is generally preceded by wiring (constructed during construction of a building), it is difficult to change the wiring of the DC supply line Wdc.

  The present invention has been made in view of the above reasons, and provides a lighting control system capable of controlling the operation of a plurality of lighting fixtures with a single management device regardless of the system of connected DC supply lines. The purpose is to do.

  The invention of claim 1 is an illumination control comprising a plurality of lighting fixtures connected to a DC power source via a DC supply line and a management device connected to the plurality of lighting fixtures via the DC supply line. In this system, the luminaire includes a light source, an instruction acquisition unit that receives an instruction to control the lighting state of the light source, a luminaire-side communication unit that communicates with the management device, and an ID holding that holds a unique identifier When the instruction is received by the means and the instruction acquisition means, the identifier and the request signal held in the ID holding means are transmitted to the management apparatus, and when the permission signal is received from the management apparatus, the lighting state of the light source is controlled according to the instruction. An operation control means for controlling the apparatus side communication means for communicating with each lighting fixture, an ID storage means for storing an identifier of each lighting fixture, and a request signal from each lighting fixture. When receiving And an identifier stored in the ID storage means and an identifier stored in the ID storage means, and if the two identifiers match, there is provided a matching means for transmitting a permission signal to the luminaire as the transmission source of the request signal. .

  According to this configuration, when the lighting apparatus receives an instruction to control the lighting state of the light source, the identifier and the request signal held in the ID holding unit are transmitted to the management apparatus. If the identifier acquired from the lighting fixture at the time of reception of the request signal from and the identifier stored in the ID storage means match, a permission signal is transmitted to the lighting fixture that is the transmission source of the request signal. Regardless of the system of the DC supply line to which the lighting fixture is connected, the lighting state of the light source of each lighting fixture can be controlled. Therefore, even if the layout of the zone is changed, the operation of the luminaire can be controlled for each zone without changing the wiring of the DC supply line.

  According to a second aspect of the present invention, in the first aspect of the invention, the instruction received by the instruction acquisition means is at least one instruction of turning on, turning off, dimming, and blinking the light source.

  According to this configuration, the management device can permit control of at least one instruction of turning on / off the light source, dimming, and blinking / lighting.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the lighting fixture includes power measuring means for measuring power consumption of itself, and the management device indicates power consumption of each lighting fixture. Power information is acquired from each lighting fixture by the apparatus side communication means.

  According to this structure, there exists an advantage that the power consumption of each lighting fixture can be integratedly managed in a management apparatus. Moreover, since the power consumption of each luminaire can be managed regardless of the system of the DC supply line to which the luminaire is connected, even if the zone layout is changed, without changing the wiring of the DC supply line, The power consumption of the lighting fixture can be managed for each zone.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the luminaire integrates the power consumption measured by the power measuring means between the time when the light source is turned on and the time when the light source is turned off. And when the operation control unit receives a turn-off instruction from the instruction acquisition unit, the identifier held in the ID holding unit and the power consumption calculated by the power integration unit A quantity is transmitted to the management device.

  According to this configuration, in the luminaire, the integrated value of power consumption from when the light source is turned on to when the light source is turned off is calculated by the power integrating means. Therefore, it is possible to reduce the burden of calculation processing necessary for the management apparatus.

  According to a fifth aspect of the present invention, in the invention according to any one of the first to fourth aspects, the management device accumulates lighting times of the lighting fixtures for each lighting fixture, and the accumulated lighting time exceeds a predetermined threshold value. And a life judging means for judging the lamp life.

  According to this configuration, since the management device determines the lamp life based on the accumulated lighting time for each lighting fixture, the user can easily grasp the lamp life and replace the lamp at an appropriate timing. Can do.

  The present invention has an effect that the operation of a plurality of lighting fixtures can be controlled by a single management device regardless of the system of connected DC supply lines.

  As shown in FIG. 2, the lighting control system described in each of the following embodiments uses an AC power source AC such as a commercial power source as a DC power source by an AC / DC converter 112 disposed in a distribution board 110 such as a house. It is used in a DC distribution system that converts and distributes DC power from the distribution board 110 to a DC outlet such as a DC outlet 131 that is installed in each room and has a pair of positive and negative power feeding units.

  Here, the DC power distribution system will be briefly described below with reference to FIG.

  In the following description, a description will be given assuming a detached house as a building to which the DC power distribution system is applied, but this does not preclude the application of the technical concept of the DC power distribution system to an apartment house. As shown in FIG. 2, the house H is provided with a DC power supply unit 101 that outputs DC power and a DC device 102 as a load driven by the DC power, and an output end of the DC power supply unit 101. DC power is supplied to the DC device 102 through the DC supply line Wdc connected to the. A current flowing through the DC supply line Wdc is monitored between the DC power supply unit 101 and the DC device 102. When an abnormality is detected, power is supplied from the DC power supply unit 101 to the DC device 102 on the DC power supply line Wdc. A DC breaker 114 is provided for limiting or blocking the current.

  The DC supply line Wdc is used as both a DC power supply path and a communication path, and is connected to the DC supply line Wdc by superimposing a communication signal for transmitting data on a DC voltage using a high-frequency carrier wave. Enables communication between devices. This technique is similar to a power line carrier technique in which a communication signal is superimposed on an AC voltage in a power line that supplies AC power.

  The DC supply line Wdc is connected to the home server 116 via the DC power supply unit 101. The in-home server 116 is a main device for constructing a home communication network (hereinafter referred to as “home network”), and communicates with a subsystem constructed by the DC device 102 in the home network.

  In the example shown in the drawing, as an subsystem, an illumination system comprising an information equipment system K101 comprising an information-system DC device 102 such as a personal computer, a wireless access point, a router, and an IP telephone, and an illumination system DC equipment 102 such as a lighting fixture. K102, K105, an intercom system K103 including a DC device 102 for handling visitors and monitoring intruders, a residential alarm system K104 including a DC device 102 for an alarm system such as a fire detector, and the like. Each subsystem constitutes a self-supporting distributed system, and can operate even with the subsystem alone.

  The above-described DC breaker 114 is provided in association with a subsystem. In the illustrated example, four DCs are associated with the information equipment system K101, the lighting system K102 and the intercom system K103, the house alarm system K104, and the lighting system K105. A breaker 114 is provided. When a plurality of subsystems are associated with one DC breaker 114, a connection box 121 for dividing the system of the DC supply line Wdc is provided for each subsystem. In the illustrated example, a connection box 121 is provided between the illumination system K102 and the intercom system K103.

  As the information equipment system K101, there is provided an information equipment system K101 composed of a DC equipment 102 connected to a DC outlet 131 arranged in advance in the house H (constructed when the house H is constructed) in the form of a wall outlet or a floor outlet.

  The lighting systems K102 and K105 include a lighting system K102 composed of a lighting device (DC device 102) arranged in advance in the house H and a lighting device (DC device 102) connected to a hook ceiling 132 arranged in advance on the ceiling. An illumination system K105 is provided. At the time of interior construction of the house H, the contractor attaches the lighting fixture to the hook ceiling 132, or the householder himself attaches the lighting fixture.

  In addition to using an infrared remote control device, a control instruction for the lighting apparatus that is the DC device 102 constituting the lighting system K102 can be given using a communication signal from the switch 141 connected to the DC supply line Wdc. That is, the switch 141 has a communication function together with the DC device 102. In addition, a control instruction may be given by a communication signal from another DC device 102 in the home network or the home server 116 regardless of the operation of the switch 141. The instructions to the lighting fixture include lighting, extinguishing, dimming, and blinking lighting.

  Since any DC device 102 can be connected to the DC outlet 131 and the hooking ceiling 132 described above and DC power is output to the connected DC device 102, the DC outlet 131 and the hooking ceiling 132 are distinguished below. When it is not necessary, it is called “DC outlet”.

  These DC outlets are provided with plug-in connection ports (power feeding portions) into which contacts (not shown) provided directly on the DC device 102 or contacts (not shown) provided via connecting wires are inserted. It has a structure in which a contact receiver that opens to the body and directly contacts the contact inserted into the connection port is held by the container. That is, the direct current outlet supplies power in a contact manner. When the DC device 102 connected to the DC outlet has a communication function, a communication signal can be transmitted through the DC supply line Wdc. A communication function is provided not only in the DC device 102 but also in the DC outlet.

  The home server 116 not only is connected to the home network, but also has a connection port connected to the wide area network NT that constructs the Internet. When the in-home server 116 is connected to the wide area network NT, it is possible to receive services from the center server 200 that is a computer server connected to the wide area network NT.

  The service provided by the center server 200 includes a service that enables monitoring and control of equipment (including mainly the DC equipment 102 but also other equipment having a communication function) connected to the home network through the wide area network NT. is there. This service makes it possible to monitor and control devices connected to the home network using a communication terminal (not shown) having a browser function such as a personal computer, Internet TV, or mobile phone.

  The in-home server 116 has both functions of communication with the center server 200 connected to the wide area network NT and communication with equipment connected to the home network, and identification information on equipment in the home network ( Here, it is assumed that an IP address is used).

  The home server 116 enables monitoring and control of home devices through the center server 200 from a communication terminal connected to the wide area network NT by using a communication function with the center server 200. The center server 200 mediates between home devices and communication terminals on the wide area network NT.

  When monitoring and controlling home devices from a communication terminal, monitoring and control requests are stored in the center server 200, and the home device periodically performs one-way polling communication to monitor from the communication terminal. And receive control requests. With this operation, it is possible to monitor and control devices in the house from the communication terminal.

  Further, when an event that should be notified to the communication terminal, such as a fire detection, occurs in the home device, the home device notifies the center server 200, and the center server 200 notifies the communication terminal by e-mail.

  An important function among the communication functions with the home network in the home server 116 is the detection and management of devices constituting the home network. The home server 116 automatically detects devices connected to the home network by applying UPnP (Universal Plug and Play). The home server 116 includes a display device 117 having a browser function, and displays a list of detected devices on the display device 117. The display device 117 has a configuration with a touch panel type or an operation unit, and can perform an operation of selecting desired contents from options displayed on the screen of the display device 117. Therefore, the user (contractor or householder) of the home server 116 can monitor or control the device on the screen of the display device 117. The display device 117 may be provided separately from the home server 116.

  The in-home server 116 manages information related to device connection, and grasps the type, function, and address of the device connected to the home network. Accordingly, the devices in the home network can be operated in conjunction with each other. Information on the connection of the device is automatically detected as described above. In order to operate the device in an interlocking manner, the device itself is automatically associated with the attribute held by the device itself, and the home server 116 is configured as a personal computer. It is also possible to connect various information terminals and use the browser function of the information terminals to associate devices.

  Each device holds the relationship of the interlocking operation of the devices. Therefore, the device can operate in an interlocked manner without passing through the home server 116. By associating the linked operations for each device, for example, by operating a switch that is a device, it is possible to turn on or off the lighting fixture that is the device. In many cases, the association of the interlocking operations is performed within the subsystem, but the association beyond the subsystem is also possible.

  By the way, the DC power supply unit 101 basically generates DC power by power conversion of an AC power supply AC supplied from outside the house like a commercial power supply. In the configuration shown in the figure, the AC power source AC is input to an AC / DC converter 112 including a switching power source through a main circuit breaker 111 attached to the distribution board 110 as an internal unit. The DC power output from the AC / DC converter 112 is connected to each DC breaker 114 through the cooperative control unit 113.

  The DC power supply unit 101 is provided with a secondary battery 162 in preparation for a period in which power is not supplied from the AC power supply AC (for example, a power failure period of the commercial power supply AC). It is also possible to use a solar cell 161 or a fuel cell 163 that generates DC power. The solar battery 161, the secondary battery 162, and the fuel battery 163 are distributed power supplies with respect to the main power supply including the AC / DC converter 112 that generates DC power from the AC power supply AC. In the illustrated example, the solar cell 161, the secondary battery 162, and the fuel cell 163 include a circuit unit that controls the output voltage, and the secondary battery 162 includes a circuit unit that controls charging as well as discharging.

  Of the distributed power sources, the solar cell 161 and the fuel cell 163 are not necessarily provided, but the secondary battery 162 is preferably provided. The secondary battery 162 is charged in a timely manner by a main power source or other distributed power source, and the secondary battery 162 is discharged not only in a period in which power is not supplied from the AC power source AC but also in a timely manner as necessary. The cooperation control unit 113 performs charge / discharge of the secondary battery 162 and cooperation between the main power source and the distributed power source. That is, the cooperative control unit 113 functions as a DC power control unit that controls the distribution of power from the main power supply and the distributed power supply constituting the DC power supply unit 101 to the DC devices 102. Note that a configuration may be adopted in which the outputs of the solar cell 161, the secondary battery 162, and the fuel cell 163 are converted into AC power and used as input power of the AC / DC converter 112.

  Since the driving voltage of the DC device 102 is selected from a plurality of types of voltages depending on the device, the cooperative control unit 113 is provided with a DC / DC converter to convert the DC voltage obtained from the main power source and the distributed power source into the necessary voltage. Is desirable. Normally, one type of voltage is supplied to one subsystem (or DC device 102 connected to one DC breaker 114), but three or more wires are used for one subsystem. A plurality of types of voltages may be supplied. Alternatively, it is possible to adopt a configuration in which the DC supply line Wdc is of a two-wire type and the voltage applied between the lines is changed with time. The DC / DC converter may be provided in a plurality of dispersed manners like the DC breaker.

  In the above configuration example, only one AC / DC converter 112 is illustrated, but a plurality of AC / DC converters 112 can be arranged in parallel, and when a plurality of AC / DC converters 112 are provided. It is desirable to increase or decrease the number of AC / DC converters 112 that are operated according to the magnitude of the load.

  The AC / DC converter 112, the cooperative control unit 113, the DC breaker 114, the solar cell 161, the secondary battery 162, and the fuel cell 163 described above are provided with a communication function, and include a main power source, a distributed power source, and a DC device 102. It is possible to perform cooperative operations that deal with the load status. The communication signal used for this communication is transmitted in the form of being superimposed on the DC voltage in the same manner as the communication signal used for the DC device 2.

  In the above example, the AC / DC converter 112 is arranged in the distribution board 110 in order to convert the AC power output from the main breaker 111 into DC power by the AC / DC converter 112. On the output side, a branch breaker (not shown) provided in the distribution board 110 branches the AC supply line into a plurality of systems, and an AC / DC converter is provided on the AC supply line of each system to convert it into DC power for each system. You may employ | adopt the structure to do.

  In this case, since the DC power supply unit 101 can be provided for each floor or room of the house H, the DC power supply unit 101 can be managed for each system, and the DC device 102 that uses DC power and Since the distance of the DC supply line Wdc between the two is reduced, the power loss due to the voltage drop in the DC supply line Wdc can be reduced. Also, the main breaker 111 and the branch breaker are housed in the distribution board 110, and the AC / DC converter 112, the cooperative control unit 113, the DC breaker 114, and the home server 116 are housed in a separate board from the distribution board 110. Also good.

  In the following, an example in which the present invention is applied to a lighting control system that manages the lighting fixture (DC device 102) of the lighting system K102 in the above-described DC power distribution system will be described, but the present invention is also applicable to the management of other lighting fixtures. can do. Here, the magnitude of the DC voltage applied to the DC device 102 from the DC outlet is set to be lower (for example, 24V, 50V, etc.) than the AC commercial power supply.

(Embodiment 1)
As shown in FIG. 1, the illumination control system of the present embodiment is connected to a DC power source E (DC power supply unit 101) via a pair of DC supply lines Wdc and receives DC power from the DC power source E. Lighting device 1 (DC device 102) for turning on the light source 2 and a management device 9 including a home server 116 provided in the distribution board 110. Although the lighting system K102 includes a plurality of lighting fixtures 1, only one lighting fixture 1 is illustrated in FIG. 1, and illustration of the other lighting fixtures 1 is omitted. Further, in FIG. 1, illustration of the DC breaker 114, the connection box 121, and the switch 141 interposed between the management device 9 and the lighting fixture 1 is also omitted.

  As described above, the DC supply line Wdc is connected to the management device 9 (home server 116) via the DC power supply unit 101, so that the management device 9 can communicate with the lighting fixture 1 that constructs the lighting system K102. become. Here, as the light source 2 of the luminaire 1, a light emitting diode (LED) that reflects the magnitude of the current Ila flowing through the lamp in the magnitude of the light output is employed.

  The luminaire 1 includes a current control circuit 3 that controls a current flowing through the light source 2 between a pair of DC input terminals T1 and T2 connected to a DC power supply E via a DC supply line Wdc, and a DC from the DC supply line Wdc. A voltage detector (voltage detector) 4 that detects a voltage applied between the input terminals T1 and T2 as an input voltage Vin, and a current detector that detects a current flowing from the DC supply line Wdc to the current control circuit 3 as an input current Iin. Part (current detection means) 10.

  The current control circuit 3 includes a series circuit of a switching element Q1, an inductor L1, and a capacitor C1 connected between the DC input terminals T1 and T2 via the current detection unit 10, and a connection point side of the switching element Q1 and the inductor L1. A step-down converter including a diode D1 connected between both ends of a series circuit of an inductor L1 and a capacitor C1 so as to connect a cathode to the drive circuit 5 and a drive circuit 5 for turning on and off the switching element Q1 in accordance with a drive signal from a control unit 6 described later. It has a chopper circuit. Furthermore, one end of the capacitor C1 is connected to one of a pair of output ends T3 and T4 connected to the light source 2, and the other end of the capacitor C1 is connected to the other end of the output ends T3 and T4 via a resistor R3. The As a result, a current corresponding to the voltage generated at both ends of the capacitor C1 flows through the series circuit of the light source 2 and the resistor R3. In addition, an output voltage detection unit formed by connecting a pair of resistors R4 and R5 in series is provided between both ends of the capacitor C1. A MOSFET is used as the switching element Q1.

  Here, the magnitude of the voltage generated across the capacitor C <b> 1 is controlled by the switching element Q <b> 1 being on / off controlled by the drive signal output from the control unit 6 to the drive circuit 5. The controller 6 monitors the magnitude of the lamp voltage Vla generated across the capacitor C1 based on the voltage across the resistor R5, and further monitors the lamp current Ila flowing through the light source 2 based on the voltage across the resistor R3. The lamp voltage Vla is used to detect an abnormal operation or the like of the current control circuit 3, and the control unit 6 turns off the switching element Q1 and stops the output of the current control circuit 3 when the current control circuit 3 operates abnormally.

  The voltage detection unit 4 includes a series circuit of resistors R1 and R2 connected between a pair of DC input terminals T1 and T2, and the control unit 6 determines a DC voltage based on the voltage across the resistor R2 constituting the voltage detection unit 4. The input voltage Vin input to the light source lighting device 1 from the supply line Wdc is monitored. The current detection unit 10 includes a resistor R0 connected between one DC input terminal T2 and the anode of the diode D1 of the current control circuit 3, and the control unit 6 determines the DC supply line based on the voltage across the resistor R0. The input current Iin input to the light source lighting device 1 from Wdc is monitored.

  Here, when the power supplied from the DC supply line Wdc to the light source lighting device 1 is the input power Win, the input power Win is represented by the product of the input voltage Vin and the input current Iin (Win = Vin × Iin). This input power Win is measured by power measuring means 11 provided in the control unit 6.

  By the way, the lighting fixture 1 of this embodiment is connected between a pair of DC input ends T1 and T2, thereby communicating with the management device 9 via the DC supply line Wdc (device side communication). Means) 7. This communication means 7 superimposes a communication signal for transmitting data on a DC voltage using a high-frequency carrier wave, and communicates with a communication means (apparatus side communication means) provided in the management device 9 through a DC supply line Wdc. It is configured to be able to communicate in both directions. Here, the communication unit 7 is also used as an instruction acquisition unit that receives an instruction to control the lighting state (lighting, extinguishing, dimming, blinking lighting, etc.) of the light source 2 by a communication signal from the switch 141.

  In addition, the control unit 6 of the luminaire 1 includes an ID holding unit 12 that holds an identifier (here, an IP address is used) unique to each luminaire 1 and an instruction to control the lighting state of the light source 2. And an operation control means 13 that transmits an identifier and a request signal to the management device 9 when receiving the control signal, and controls the lighting state of the light source 2 in accordance with the instruction when the permission signal is received from the management device 9. The operation control means 13 is connected to the communication means 7. In the present embodiment, the identifier held in the ID holding unit 12 is set in advance for each lighting fixture 1, but is arbitrarily set by a dip switch (not shown) provided in the lighting fixture 1, for example. It may be possible.

  For example, when a lighting instruction is given to the luminaire 1 using a communication signal from the switch 141, the operation control unit 13 receives an identifier held in the ID holding unit 12 and a request signal for requesting lighting permission ( (Hereinafter referred to as a lighting request signal) from the communication means 7 to the management device 9. At this time, when the communication means 7 receives a permission signal (hereinafter referred to as a lighting permission signal) from the management device 9 that permits lighting in response to the lighting request signal, the operation control means 13 starts on / off control of the switching element Q1. The light source 2 is turned on by starting the power supply from the current control circuit 3 to the light source 2. On the other hand, for example, when an instruction to turn off is given to the lighting fixture 1 using a communication signal from the switch 141, the operation control unit 13 obtains an identifier held in the ID holding unit 12 and permission to turn off. A request signal (hereinafter referred to as a turn-off request signal) is transmitted from the communication means 7 to the management device 9 and a permission signal (hereinafter referred to as a turn-off permission signal) from the management device 9 that permits turning off in response to the turn-off request signal is communicated. When received by the means 7, the light source 2 is turned off by stopping the power supply from the current control circuit 3 to the light source 2.

  In the management device 9, communication means (device-side communication means) 14 for communicating with the communication means 7 of each lighting fixture 1 via the DC supply line Wdc, and each lighting fixture 1 included in the lighting control system. An ID storage unit 15 for storing the identifier and a verification unit 16 for comparing the identifier transmitted from each lighting fixture 1 with the identifier stored in the ID storage unit are provided.

  The collating unit 16 determines whether or not the identifier received together with the lighting request signal from each lighting fixture 1 matches the identifier in the ID storage unit 15 when the lighting request signal from the lighting fixture 1 is received by the communication unit 14. If the two identifiers are determined, the lighting means 1 has a function of transmitting a lighting permission signal from the communication means 14 to the lighting fixture 1 that is the transmission source of the lighting request signal. On the other hand, when the communication unit 14 receives the turn-off request signal from the lighting fixture 1, it is determined whether the identifier received together with the turn-off request signal from each lighting fixture 1 matches the identifier in the ID storage means 15, If both identifiers match, a turn-off permission signal is transmitted to the luminaire 1 that is the transmission source of the turn-off request signal. If the identifier received together with the turn-on request signal or turn-off request signal does not match the identifier in the ID storage means 15, it is determined that the turn-on request signal or turn-off request signal is invalid, and the turn-on permission signal or turn-off permission is determined. Do not send a signal.

  Here, the ID storage means 15 applies the UPnP as described above to the lighting device 1 detected by the function of the management device 9 (home server 116) that automatically detects a device connected to the home network. The identifier is automatically stored. For example, a configuration for setting an identifier to be stored in the ID storage unit 15 by an operation of an operation unit attached to the display device 117 (see FIG. 2) of the management device 9, You may employ | adopt the structure by which the identifier of the said lighting fixture 1 is memorize | stored in the ID memory | storage means 15 by performing predetermined operation by the lighting fixture 1 side.

  Hereinafter, the operation of the illumination control system of the present embodiment will be described with reference to FIG. 3A is a time chart showing lighting / extinguishing of the light source 2, FIG. 3B is a time chart showing instruction of turning on / off the lighting fixture 1, and FIG. 3C is a time showing permission signal. FIG. 3D shows a time chart representing the request signal.

  In the state where the light source 2 is turned off, for example, when a lighting instruction is given to the lighting fixture 1 by operating the switch 141, the operation control means 13 of the lighting fixture 1 holds the lighting request signal in the ID holding means 12. It transmits to the management apparatus 9 from the communication means 7 with an identifier (time t1-t2 of FIG. 3). At this time, the management device 9 collates the identifier received together with the lighting request signal with the identifier in the ID storage means 15, and returns a lighting permission signal from the communication means 14 to the luminaire 1 when both identifiers match ( Time t2 to t3 in FIG. The luminaire 1 that has received the lighting permission signal starts output to the light source 2 and turns on the light source 2 (time t3 in FIG. 3).

  On the other hand, in a state where the light source 2 is turned on, for example, when an instruction to turn off the lighting device 1 is given by operating the switch 141, the operation control unit 13 of the lighting device 1 holds the turn-off request signal in the ID holding unit 12. Is transmitted from the communication means 7 to the management device 9 together with the identifier (time t11 to t12 in FIG. 3). At this time, the management device 9 collates the identifier received together with the turn-off request signal with the identifier in the ID storage means 15, and when both identifiers match, returns the turn-off permission signal from the communication means 14 to the lighting apparatus 1 ( Time t12 to t13 in FIG. The luminaire 1 that has received the turn-off permission signal stops the output to the light source 2 and turns off the light source 2 (time t13 in FIG. 3).

  That is, operations such as turning on / off in each lighting fixture 1 constituting the lighting system K102 are centrally managed by the management device 9. For example, a lighting fixture whose identifier is not stored in the ID storage means 15 of the management device 9 is used. 1 can be prohibited.

  According to the lighting control system having the configuration described above, when the lighting fixture 1 receives the lighting instruction, the lighting fixture 1 transmits the identifier and lighting request signal held in the ID holding means 12 to the management device 9 for management. If the identifier acquired from the lighting fixture 1 and the identifier stored in the ID storage unit 15 coincide with each other when the lighting request signal from each lighting fixture 1 is received, the device 9 transmits the lighting request signal source lighting fixture. Since the lighting permission signal is transmitted to 1, the management device 9 can control the operation (lighting) for each lighting fixture 1 regardless of the system of the DC supply line Wdc to which the lighting fixture 1 is connected. In addition, when the lighting fixture 1 receives an instruction to turn off, the management device 9 can similarly control the operation (turning off) for each lighting fixture 1.

  Therefore, as shown in FIG. 4, when the lighting control system is applied to a building such as a tenant building in which the interior of the building is divided into a plurality of zones A to C, each DC supply line Wdc branched into a plurality of systems Even if it is not laid for each of the zones A to C, the management device 9 controls the operation of each lighting fixture 1 regardless of the system of the DC supply line Wdc to which the lighting fixture 1 is connected. Operation | movement of the lighting fixture 1 can be controlled for every -C. Therefore, even if the layout of each of the zones A to C is changed by reforming or the like, it is not necessary to change the wiring of the DC supply line Wdc.

  Here, in this embodiment, in order to control the operation of the luminaire 1 for each of the zones A to C, a table in which the zones A to C are associated with the luminaires 1 existing in the zones A to C is managed. 9 is provided in the ID storage means 15, and the operation of the lighting apparatus 1 is performed for each of the zones A to C even after the layout change of the zones A to C by updating the table according to the layout change of the zones A to C. It can be controlled. However, not limited to this example, the identifier held in the ID holding means 12 of each lighting fixture 1 is unique to each zone A to C, and the identifier held in each ID holding means 12 is arbitrarily set By enabling it, you may make it update the identifier of the lighting fixture 1 according to the layout change of zone AC. In this case, the process of associating the zones A to C with the lighting fixture 1 in the management device 9 is not necessary, and thus the processing for controlling the operation of the lighting fixture 1 for each of the zones A to C is simplified.

  Moreover, in this embodiment, the input power W (that is, power consumption) in of the lighting fixture 1 measured by the power measuring means 11 provided in each lighting fixture 1 can be acquired by the management device 9 by communication with the communication means 14. It is like that.

  More specifically, the luminaire 1 is consumed by integrating the input power Win measured by the power measuring means 11 from the lighting start time of the light source 2 (time t3 in FIG. 3) until the light source 2 is turned off. It has power integration means (not shown) for calculating the amount of power. Here, for example, when an instruction to turn off the lighting apparatus 1 is given to the lighting apparatus 1 by operating the switch 141, the operation control means 13 consumes from the start of turning on the light source 2 calculated by the power integrating means until the instruction to turn off is received. The amount of power is transmitted from the communication unit 7 to the management device 9 together with the turn-off request signal and the identifier held in the ID holding unit 12 (time t11 to t12 in FIG. 3). Although the light source 2 is turned off after the response of the turn-off permission signal from the management device 9, the time from the receipt of the turn-off instruction to the reply of the turn-off permission signal is the time when the light source 2 is turned on ( It is sufficiently shorter than the times t3 to t13) in FIG. 3, and the power consumption from when the light source 2 is turned on until it is turned off as described above is from when the light source 2 is turned on until it is turned off. It can be considered that it is substantially the same as the amount of power consumption.

  According to this configuration, the power consumption of the plurality of lighting fixtures 1 can be centrally managed by one management device 9 regardless of the system of the DC supply line Wdc to which the lighting fixtures 1 are connected. Therefore, it becomes possible to manage the power consumption of the lighting fixture 1 for every zone AC of tenant buildings. Moreover, in each luminaire 1, since the integrated value of power consumption from the start of lighting of the light source 2 to the extinction is calculated by the power integrating means, the integrated value of the power consumption of the plurality of luminaires 1 is calculated by the management device 9. There is an advantage that it is possible to reduce the burden of arithmetic processing required for the management device 9 for management.

  By the way, the instruction for controlling the lighting state of the light source 2 to the lighting fixture 1 is not limited to the operation by the operation of the switch 141 as described above, but is given using the infrared remote control device, or another DC device 102 in the home network or the home A control instruction may be issued from the server 116 by a communication signal. Further, an operation unit (not shown) may be provided in the lighting fixture 1 itself, and an instruction may be given according to the operation of the operation unit.

  In the above embodiment, a light emitting diode is used as the light source 2. However, the light source 2 is not limited to the light emitting diode, and the light source 2 that reflects the magnitude of the current flowing through the light source is used. In such a case, a circuit similar to the above embodiment can be employed. Further, as the light source 2, a light source 2 that reflects the magnitude of power supplied to itself, such as a high-intensity discharge lamp (HID lamp) or a fluorescent lamp, in the magnitude of light output can be used.

(Embodiment 2)
The lighting control system according to the present embodiment obtains the cumulative lighting time of the lighting fixture 1 for each lighting fixture from the management device 9 and determines a lamp lifetime when the calculated cumulative lighting time exceeds a predetermined threshold (see FIG. (Not shown) is different from the illumination control system of the first embodiment. Here, it is assumed that the cumulative lighting time of the lighting fixture 1 is obtained by accumulating the time from when the management device 9 transmits a lighting permission signal to the lighting fixture 1 until when the lighting permission signal is transmitted to the same lighting fixture 1.

  That is, when the cumulative lighting time of each luminaire 1 exceeds a predetermined threshold, the lifetime determining means determines that the lifetime of the light source 2 of the luminaire 1 is the lifetime of the display device 117 of the management device 9 for the user. The lamp life can be easily grasped, and the lamp can be replaced at an appropriate timing. The means for notifying the user of the lamp life is not limited to the display on the display 117, but may be notified to the user by changing the lighting state (flashing lighting, dimming, etc.) of the corresponding lighting fixture 1, for example. Good.

  Other configurations and functions are the same as those in the first embodiment.

It is the schematic which shows the structure of Embodiment 1 of this invention. It is a system configuration diagram showing a DC power distribution system in which the illumination control system is used. It is explanatory drawing which shows operation | movement same as the above. It is a schematic system block diagram which shows the whole structure same as the above. It is a schematic system block diagram which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Light source 7 (Appliance side) Communication means 9 Management apparatus 11 Electric power measurement means 12 ID holding means 13 Operation control means 14 (Apparatus side) Communication means 15 ID storage means 16 Verification means E DC power supply Wdc DC supply line

Claims (5)

  A lighting control system comprising: a plurality of lighting fixtures connected to a DC power supply via a DC supply line; and a management device connected to the plurality of lighting fixtures via the DC supply line, Are a light source, an instruction acquisition unit that receives an instruction to control the lighting state of the light source, an appliance-side communication unit that communicates with the management device, an ID holding unit that holds a unique identifier, and an instruction acquisition unit When an instruction is received, an identifier and a request signal held in the ID holding means are transmitted to the management apparatus, and when a permission signal is received from the management apparatus, operation control means is provided for controlling the lighting state of the light source according to the instruction. Then, the management device acquires from the lighting device upon receiving a request signal from each lighting device, an ID storage unit that stores an identifier of each lighting device, and a device-side communication unit that communicates with each lighting device. Do A lighting control system comprising: a collator that collates an identifier stored in an ID storage means, and a collating means that transmits a permission signal to a lighting fixture that is a transmission source of a request signal if the identifiers match. .   The illumination control system according to claim 1, wherein the instruction received by the instruction acquisition unit is at least one instruction of turning on, turning off, dimming, and blinking the light source.   The lighting fixture includes power measuring means for measuring power consumption of itself, and the management device acquires power information indicating power consumption of each lighting fixture from each lighting fixture by the device-side communication means. The lighting control system according to claim 1 or 2.   The lighting fixture has power integration means for calculating power consumption by integrating power consumption measured by the power measurement means between the time when the light source is turned on and the time when the light source is turned off. When an instruction to turn off is received by the instruction acquisition unit, the identifier held in the ID holding unit and the power consumption calculated by the power integrating unit are transmitted to the management device. Item 4. The lighting control system according to Item 3.   The said management apparatus has a lifetime judgment means which accumulates the lighting time of the said lighting fixture for every lighting fixture, and judges that it is a lamp lifetime when the accumulated lighting time exceeds a predetermined threshold value. Item 5. The lighting control system according to any one of Items4.

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