JP2020174021A - Lighting system, communication device, lighting device and data transmission method for lighting system - Google Patents
Lighting system, communication device, lighting device and data transmission method for lighting system Download PDFInfo
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本発明は、複数の照明装置を含む照明システムにおいて、電力線通信を介して、照明装置の制御を行う技術に関するものである。 The present invention relates to a technique for controlling a lighting device via power line communication in a lighting system including a plurality of lighting devices.
従来より、コントローラから複数の照明装置に調光信号を送信して、各照明装置を制御する照明システムが知られている。特許文献１には、電力線通信による制御が可能な照明機器を備える照明システムと、無線通信による制御が可能な照明機器を備える照明システムとの統合を容易に行うことができる技術が開示されている。 Conventionally, there has been known a lighting system in which a controller transmits a dimming signal to a plurality of lighting devices to control each lighting device. Patent Document 1 discloses a technique capable of easily integrating a lighting system including a lighting device capable of being controlled by power line communication and a lighting system including a lighting device capable of being controlled by wireless communication. ..
ところで、電力線通信では、端末間の電力線の距離が所定の長さ以上となる場合に、信号が減衰して、端末間の通信が遮断されるおそれがある。このため、電力線通信を用いたシステムでは、受信したデータを他の端末に転送するホップ機能を備えた端末を含むものが存在する。特に、高速電力線通信（ＨＤ−ＰＬＣ（登録商標）：High Definition Power Line Communication）では、ホップ機能を備えた複数の端末がリレー方式で通信データを中継するマルチホップ機能が用いられる。高速電力線通信では、このマルチホップ機能により、通常の電力線通信よりも端末間の通信距離を長くすることができる。 By the way, in power line communication, when the distance between power lines between terminals is longer than a predetermined length, the signal may be attenuated and communication between terminals may be interrupted. For this reason, some systems using power line communication include terminals having a hop function for transferring received data to other terminals. In particular, in high-speed power line communication (HD-PLC (registered trademark): High Definition Power Line Communication), a multi-hop function is used in which a plurality of terminals having a hop function relay communication data by a relay method. In high-speed power line communication, this multi-hop function can make the communication distance between terminals longer than in normal power line communication.
ここで、照明システムにおいて、コントローラと照明装置との間の通信に高速電力線通信を用いた場合、コントローラから出力された調光信号を、ブロードキャスト方式により、各照明装置に伝送する構成が考えられる。調光信号をブロードキャスト方式で伝送することにより、各照明装置に調光信号を伝送するために必要となる調光信号の送信回数を抑えることができるため、照明システムの通信速度を向上させることができる。 Here, in the lighting system, when high-speed power line communication is used for communication between the controller and the lighting device, a configuration is conceivable in which the dimming signal output from the controller is transmitted to each lighting device by a broadcast method. By transmitting the dimming signal by the broadcast method, it is possible to reduce the number of times the dimming signal is transmitted, which is required to transmit the dimming signal to each lighting device, so that the communication speed of the lighting system can be improved. it can.
しかし、調光信号の伝送経路が信号の減衰しやすい環境（例えば、端末間の電力線の長さが長い場合や、調光信号の伝送経路内に周囲から受ける電磁波の影響が大きい場所がある場合など）に置かれている場合、調光信号の伝送が遮断されるおそれがある。 However, in an environment where the transmission path of the dimming signal is likely to be attenuated (for example, when the length of the power line between terminals is long, or when there is a place in the transmission path of the dimming signal that is greatly affected by electromagnetic waves from the surroundings. If it is placed in (such as), the transmission of the dimming signal may be interrupted.
そこで、調光信号をユニキャスト方式により伝送する構成が考えられる。調光信号をユニキャスト方式で伝送することにより、コントローラと照明装置との間または照明装置同士の間で、調光信号の伝送ができなかった場合、調光信号が再送されるため、調光信号の伝送が遮断される可能性を低減させることができる。 Therefore, a configuration in which the dimming signal is transmitted by the unicast method is conceivable. By transmitting the dimming signal by the unicast method, if the dimming signal cannot be transmitted between the controller and the lighting device or between the lighting devices, the dimming signal is retransmitted, so that the dimming is performed. The possibility that signal transmission will be interrupted can be reduced.
しかし、ユニキャスト方式では、調光信号の宛先に指定されていない照明装置は、調光信号の転送を行うのみであり、転送を行う調光信号に自己の光源の制御値が含まれていても、その制御値を使用しない。すなわち、照明装置ごとに調光信号を送信する必要が生じるため、照明システムにおける調光信号の送信回数が増加し、調光信号の伝送遅延が発生する。 However, in the unicast method, the lighting device that is not specified as the destination of the dimming signal only transfers the dimming signal, and the dimming signal to be transferred includes the control value of its own light source. Does not use that control value. That is, since it is necessary to transmit the dimming signal for each lighting device, the number of times the dimming signal is transmitted in the lighting system increases, and the transmission delay of the dimming signal occurs.
そこで、本発明は、電力線通信により複数の照明装置を制御する照明システムにおいて、調光信号の伝送が遮断される可能性を低減させつつ、調光信号の伝送遅延を抑えることを目的とする。 Therefore, an object of the present invention is to reduce the possibility that the transmission of a dimming signal is interrupted in a lighting system that controls a plurality of lighting devices by power line communication, and to suppress the transmission delay of the dimming signal.
上記課題を解決するために、本発明の一実施形態に係る照明システムは、複数の照明装置と、前記複数の照明装置を制御するコントローラと、前記複数の照明装置と接続され、前記コントローラと電力線通信によって通信を行う複数の通信機器とを備える。前記コントローラは、前記複数の照明装置を制御する調光信号を生成し、電力線を介して送信する。前記通信機器は、前記調光信号を、前記電力線を介して受信し、受信した調光信号に、接続された前記照明装置に対応する制御値が含まれるとき、当該制御値を前記照明装置に送信し、受信した調光信号と同一の調光信号を、他の通信機器に前記電力線を介して送信し、前記他の通信機器が前記調光信号を受信したことを確認できない場合、送信した調光信号を再送する。 In order to solve the above problems, the lighting system according to the embodiment of the present invention is connected to a plurality of lighting devices, a controller for controlling the plurality of lighting devices, and the plurality of lighting devices, and is connected to the controller and a power line. It is equipped with a plurality of communication devices that communicate by communication. The controller generates a dimming signal for controlling the plurality of lighting devices and transmits the dimming signal via a power line. The communication device receives the dimming signal via the power line, and when the received dimming signal includes a control value corresponding to the connected lighting device, the control value is transmitted to the lighting device. The same dimming signal as the dimming signal transmitted and received is transmitted to another communication device via the power line, and when it cannot be confirmed that the other communication device has received the dimming signal, it is transmitted. Retransmit the dimming signal.
本発明によれば、電力線通信により複数の照明装置を制御する照明システムにおいて、調光信号の伝送が遮断される可能性を低減させつつ、調光信号の伝送遅延を抑えることができる。 According to the present invention, in a lighting system that controls a plurality of lighting devices by power line communication, it is possible to suppress the transmission delay of the dimming signal while reducing the possibility that the transmission of the dimming signal is interrupted.
以下、本発明の実施形態を図面に基づいて詳細に説明する。以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物あるいはその用途を制限することを意図するものでは全くない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of preferred embodiments is merely exemplary and is not intended to limit the present invention, its applications or its uses.
−照明システムの概要−
図１は本実施形態に係る照明システムのブロック図である。図１に示すように、本照明システムは、コントローラ１と、複数の照明装置２とを備える。コントローラ１は、通信機器３およびコネクタ３３を介して、電力線５に接続されており、交流電源６から電力供給を受けている。各照明装置２は、通信機器４およびコネクタ４３を介して、電力線５に接続されており、交流電源６から電力供給を受けている。また、コントローラ１と各照明装置２とは、通信機器３，４および電力線５を介して電力線通信を行うことが可能である。本照明システムでは、コントローラ１と各照明装置２とは、電力線通信により互いに調光信号を送受信することができる。
-Outline of lighting system-
FIG. 1 is a block diagram of a lighting system according to the present embodiment. As shown in FIG. 1, this lighting system includes a controller 1 and a plurality of lighting devices 2. The controller 1 is connected to the power line 5 via the communication device 3 and the connector 33, and receives power from the AC power supply 6. Each lighting device 2 is connected to a power line 5 via a communication device 4 and a connector 43, and receives power from an AC power source 6. Further, the controller 1 and each lighting device 2 can perform power line communication via the communication devices 3 and 4 and the power line 5. In this lighting system, the controller 1 and each lighting device 2 can transmit and receive dimming signals to and from each other by power line communication.
コントローラ１は、操作部１１に対する操作入力に応じた調光信号を生成し、電力線通信により調光信号を複数の照明装置２に送信する。各照明装置２は、コントローラ１から受信した調光信号に基づき、自己の光源２２の調光（光量、色彩、向き等）を制御する。具体的に、調光信号には、各照明装置２の光源２２の調光を示す制御値（制御データ）が含まれており、各照明装置２は、調光信号に含まれる制御値に従って、自己の光源２２の調光を制御する。すなわち、本照明システムでは、コントローラ１を操作することにより、各照明装置２の光源２２の調光を制御することができる。 The controller 1 generates a dimming signal according to the operation input to the operation unit 11, and transmits the dimming signal to the plurality of lighting devices 2 by power line communication. Each lighting device 2 controls the dimming (light amount, color, direction, etc.) of its own light source 22 based on the dimming signal received from the controller 1. Specifically, the dimming signal includes a control value (control data) indicating dimming of the light source 22 of each lighting device 2, and each lighting device 2 according to the control value included in the dimming signal. It controls the dimming of its own light source 22. That is, in this lighting system, the dimming of the light source 22 of each lighting device 2 can be controlled by operating the controller 1.
−コントローラ１および通信機器３の構成−
コントローラ１は、操作部１１と、記憶部１２と、制御部１３とを備える。
-Configuration of controller 1 and communication device 3-
The controller 1 includes an operation unit 11, a storage unit 12, and a control unit 13.
操作部１１は、コントローラ１の操作者からの操作入力を受け付ける。操作部１１は、例えば、キーボード、マウス、タッチパネル、フェーダ等の入力装置であり、各照明装置２の光源２２の調光を制御するために行われた操作入力に応じた信号を制御部１３に出力する。なお、コントローラ１に表示部を備えて、表示部に各照明装置２の光源２２の調光を表示させてもよい。 The operation unit 11 receives an operation input from the operator of the controller 1. The operation unit 11 is, for example, an input device such as a keyboard, a mouse, a touch panel, and a fader, and a signal corresponding to an operation input performed to control dimming of the light source 22 of each lighting device 2 is sent to the control unit 13. Output. The controller 1 may be provided with a display unit, and the display unit may display the dimming of the light source 22 of each lighting device 2.
記憶部１２は、ＲＯＭ（Read Only Memory)、ＲＡＭ（Random Access Memory）、ＨＤＤ（Hard Disk Drive）およびＳＳＤ(Solid State Drive)等によって構成された記憶媒体である。記憶部１２には、制御部１３が実行する制御プログラムが記憶されている。 The storage unit 12 is a storage medium composed of a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD (Hard Disk Drive), an SSD (Solid State Drive), and the like. The storage unit 12 stores a control program executed by the control unit 13.
制御部１３は、例えば、ＣＰＵ（Central Processing Unit）および半導体メモリ等を含むマイクロコンピュータで構成される。制御部１３は、記憶部１２に記憶された各種プログラムを実行することにより、各照明装置２との間で電力線通信を実行する。具体的には、制御部１３は、操作部１１から入力された信号に基づき、照明装置２の光源２２の調光を示す制御値を含む調光信号を生成し、生成した調光信号を通信機器３の通信部３２に出力する。 The control unit 13 is composed of, for example, a microcomputer including a CPU (Central Processing Unit), a semiconductor memory, and the like. The control unit 13 executes power line communication with each lighting device 2 by executing various programs stored in the storage unit 12. Specifically, the control unit 13 generates a dimming signal including a control value indicating dimming of the light source 22 of the lighting device 2 based on the signal input from the operation unit 11, and communicates the generated dimming signal. It is output to the communication unit 32 of the device 3.
通信機器３は、電源部３１と、通信部３２とを備える。 The communication device 3 includes a power supply unit 31 and a communication unit 32.
電源部３１は、コネクタ３３および電力線５を介して、交流電源６から交流電力の供給を受ける。電源部３１に供給された交流電力は、図略の電力供給手段（例えば、電力線等）によりコントローラ１の各部に供給され、コントローラ１を動作させる。 The power supply unit 31 receives AC power from the AC power supply 6 via the connector 33 and the power line 5. The AC power supplied to the power supply unit 31 is supplied to each unit of the controller 1 by a power supply means (for example, a power line or the like) (not shown) to operate the controller 1.
通信部３２は、例えば、ＣＰＵおよび半導体メモリ等を含むマイクロコンピュータで構成される。通信部３２は、制御部１３から出力された調光信号を、交流電源６から供給される交流電力の周波数よりも高い周波数に変調して、電力線５に出力する。具体的には、通信部３２は、制御部１３が生成した調光信号を２ＭＨｚ〜２８ＭＨｚの直交周波数分割多重方式（ＯＦＤＭ）に変調して、変調した調光信号を、コネクタ３３を介して、電力線５に出力する。 The communication unit 32 is composed of, for example, a microcomputer including a CPU, a semiconductor memory, and the like. The communication unit 32 modulates the dimming signal output from the control unit 13 to a frequency higher than the frequency of the AC power supplied from the AC power supply 6 and outputs the dimming signal to the power line 5. Specifically, the communication unit 32 modulates the dimming signal generated by the control unit 13 into an orthogonal frequency division multiplexing method (OFDM) of 2 MHz to 28 MHz, and transmits the modulated dimming signal via the connector 33. Output to the power line 5.
−照明装置２および通信機器４の構成−
通信機器４は、電源部４１と、通信部４２とを備える。
-Configuration of lighting device 2 and communication device 4-
The communication device 4 includes a power supply unit 41 and a communication unit 42.
電源部４１は、コネクタ４３および電力線５を介して、交流電源６から交流電力の供給を受ける。電源部４１に供給された交流電力は、図略の電力供給手段（例えば、電力線等）により照明装置２の各部に供給され、照明装置２を動作させる。 The power supply unit 41 receives AC power from the AC power supply 6 via the connector 43 and the power line 5. The AC power supplied to the power supply unit 41 is supplied to each part of the lighting device 2 by a power supply means (for example, a power line or the like) (not shown) to operate the lighting device 2.
通信部４２は、例えば、ＣＰＵおよび半導体メモリ等を含むマイクロコンピュータで構成される。通信部４２は、コネクタ４３を介して、電力線５と接続されており、電力線通信により通信機器３および他の通信機器４と調光信号の送受信を行う。具体的に、通信部４２は電力線５を介して交流電源６から供給された交流電力から、交流電力に重畳された調光信号を分離して、調光信号を復号する。通信部４２は、復号した調光信号に、自己に接続された照明装置２の制御値が含まれる場合、当該制御値を照明装置２に送信する。また、通信部４２は、調光信号を受信した場合、受信した調光信号と同一の制御値を含む調光信号を交流電源６から供給される交流電力に重畳させて、電力線５に出力する。 The communication unit 42 is composed of, for example, a microcomputer including a CPU, a semiconductor memory, and the like. The communication unit 42 is connected to the power line 5 via the connector 43, and transmits and receives dimming signals to and from the communication device 3 and other communication devices 4 by power line communication. Specifically, the communication unit 42 separates the dimming signal superimposed on the AC power from the AC power supplied from the AC power source 6 via the power line 5 and decodes the dimming signal. When the decoded dimming signal includes the control value of the lighting device 2 connected to itself, the communication unit 42 transmits the control value to the lighting device 2. When the communication unit 42 receives the dimming signal, the communication unit 42 superimposes the dimming signal including the same control value as the received dimming signal on the AC power supplied from the AC power supply 6 and outputs the dimming signal to the power line 5. ..
照明装置２は、光源制御部２１と、光源２２とを備える。 The lighting device 2 includes a light source control unit 21 and a light source 22.
光源制御部２１は、例えば、ＣＰＵおよび半導体メモリ等を含むマイクロコンピュータまたは電気回路等で構成され、通信部４２から入力される制御値に従って、光源２２の調光を制御する。 The light source control unit 21 is composed of, for example, a microcomputer or an electric circuit including a CPU and a semiconductor memory, and controls dimming of the light source 22 according to a control value input from the communication unit 42.
−調光信号について−
コントローラ１の制御部１３は、例えば、ＤＭＸ（Digital Multiplex）−５１２規格に従って、調光信号を生成する。ＤＭＸ−５１２規格では、１つの調光信号に、５１２個の制御値を含むことができる。
-About dimming signal-
The control unit 13 of the controller 1 generates a dimming signal according to, for example, the DMX (Digital Multiplex) -512 standard. In the DMX-512 standard, one dimming signal can contain 512 control values.
本照明システムでは、１つの調光信号に、照明システムに含まれる全ての照明装置２の光源２２の制御値が含まれる。また、本照明システムでは、照明装置２ごとに、調光信号に含まれる制御値のうちいずれの制御値に従って、自己の光源２２の調光を制御するかが予め定められている。例えば、ある照明装置２が、調光信号に含まれる制御値のうち１番目の制御値に従って、自己の光源２２の調光を制御すると定められている場合、当該照明装置２に接続されている通信機器４の通信部４２は、受信した調光信号の１番目の制御値を当該照明装置２の光源制御部２１に送信する。この場合、照明装置２の光源制御部２１は、通信機器４の通信部４２から受信した制御値に従って、自己の光源２２の調光を制御する。 In this lighting system, one dimming signal includes the control values of the light sources 22 of all the lighting devices 2 included in the lighting system. Further, in this lighting system, it is predetermined for each lighting device 2 which of the control values included in the dimming signal is used to control the dimming of its own light source 22. For example, when it is determined that a certain lighting device 2 controls the dimming of its own light source 22 according to the first control value among the control values included in the dimming signal, it is connected to the lighting device 2. The communication unit 42 of the communication device 4 transmits the first control value of the received dimming signal to the light source control unit 21 of the lighting device 2. In this case, the light source control unit 21 of the lighting device 2 controls the dimming of its own light source 22 according to the control value received from the communication unit 42 of the communication device 4.
−通信機器の機能について−
図２は本照明システムにおける調光信号の伝送経路の一例を示す図である。なお、照明装置２ａ〜２ｆは、照明装置２と同じ構成であり、通信機器４ａ〜４ｄは、通信機器４と同じ構成である。
-About the functions of communication equipment-
FIG. 2 is a diagram showing an example of a dimming signal transmission path in this lighting system. The lighting devices 2a to 2f have the same configuration as the lighting device 2, and the communication devices 4a to 4d have the same configuration as the communication device 4.
図２に示すように、コントローラ１は、通信機器３を介して、電力線５に接続されている。また、照明装置２ａ，２ｂは、通信機器４ａを介して、電力線５に接続されており、照明装置２ｃは、通信機器４ｂを介して、電力線５に接続されている。照明装置２ｄ，２ｅは、通信機器４ｃを介して、電力線５に接続されており、照明装置２ｆは、通信機器４ｄを介して、電力線５に接続されている。 As shown in FIG. 2, the controller 1 is connected to the power line 5 via the communication device 3. Further, the lighting devices 2a and 2b are connected to the power line 5 via the communication device 4a, and the lighting device 2c is connected to the power line 5 via the communication device 4b. The lighting devices 2d and 2e are connected to the power line 5 via the communication device 4c, and the lighting device 2f is connected to the power line 5 via the communication device 4d.
図２に示すように、本照明システムでは、矢印で示す方向に調光信号を含む信号が伝送される。具体的に、コントローラ１の制御部１３は、生成した調光信号を通信機器３に送信する。通信機器３は、電力線通信により、制御部１３から受信した調光信号を通信機器４ａに送信する。通信機器４ａは、通信機器３から受信した調光信号に含まれる制御値を照明装置２ａ，２ｂにそれぞれ送信する。また、通信機器４ａは、電力線通信により、通信機器３から受信した調光信号と同一の調光信号を通信機器４ｂに送信する。通信機器４ｂは、通信機器４ａから受信した調光信号に含まれる制御値を照明装置２ｃに送信する。また、通信機器４ｂは、電力線通信により、通信機器４ａから受信した調光信号と同一の調光信号を通信機器４ｃに送信する。通信機器４ｃは、通信機器４ｂから受信した調光信号に含まれる制御値を照明装置２ｄ，２ｅにそれぞれ送信する。通信機器４ｃは、電力線通信により、通信機器４ｂから受信した調光信号と同一の調光信号を通信機器４ｄに送信する。通信機器４ｄは、通信機器４ｃから受信した調光信号に含まれる制御値を照明装置２ｆに送信する。 As shown in FIG. 2, in this lighting system, a signal including a dimming signal is transmitted in the direction indicated by the arrow. Specifically, the control unit 13 of the controller 1 transmits the generated dimming signal to the communication device 3. The communication device 3 transmits the dimming signal received from the control unit 13 to the communication device 4a by power line communication. The communication device 4a transmits the control values included in the dimming signal received from the communication device 3 to the lighting devices 2a and 2b, respectively. Further, the communication device 4a transmits the same dimming signal as the dimming signal received from the communication device 3 to the communication device 4b by power line communication. The communication device 4b transmits the control value included in the dimming signal received from the communication device 4a to the lighting device 2c. Further, the communication device 4b transmits the same dimming signal as the dimming signal received from the communication device 4a to the communication device 4c by power line communication. The communication device 4c transmits the control values included in the dimming signal received from the communication device 4b to the lighting devices 2d and 2e, respectively. The communication device 4c transmits the same dimming signal as the dimming signal received from the communication device 4b to the communication device 4d by power line communication. The communication device 4d transmits the control value included in the dimming signal received from the communication device 4c to the lighting device 2f.
以上に説明したように、本実施形態では、通信機器３は、コントローラ１が生成した調光信号を、電力線通信により、通信機器４に送信する。各通信機器４は、受信した調光信号を他の通信機器４に転送（ホップ）する。また、通信機器４は、受信した調光信号に自己に接続された照明装置２の制御値が含まれる場合、当該制御値を照明装置２に送信する。照明装置２は、通信機器４から受信した制御値に従って、自己の光源２２の調光を制御する。 As described above, in the present embodiment, the communication device 3 transmits the dimming signal generated by the controller 1 to the communication device 4 by power line communication. Each communication device 4 transfers (hops) the received dimming signal to another communication device 4. Further, when the received dimming signal includes the control value of the lighting device 2 connected to itself, the communication device 4 transmits the control value to the lighting device 2. The lighting device 2 controls the dimming of its own light source 22 according to the control value received from the communication device 4.
ここで、本照明システムでは、通信機器３，４ａ〜４ｃは、それぞれ、調光信号の再送制御をそれぞれ行う。例えば、通信機器４ａは、通信機器３から送信された調光信号を受信した場合、調光信号の送信元である通信機器３に、調光信号の受信を通知する通知信号を、電力線通信により、送信する。そして、通信機器３は、通信機器４ａに調光信号を送信してから所定時間経過するまでに、通信機器４ａからの通知信号を受信できなかった場合、再度調光信号を送信する。すなわち、調光信号の送信元である通信機器３，４ａ〜４ｃは、調光信号の送信先である通信機器４ａ〜４ｄが調光信号を受信したことを確認できなかった場合、調光信号をそれぞれ再送信する。 Here, in the present lighting system, the communication devices 3, 4a to 4c each perform retransmission control of the dimming signal. For example, when the communication device 4a receives the dimming signal transmitted from the communication device 3, the communication device 4a notifies the communication device 3 which is the transmission source of the dimming signal of the reception of the dimming signal by power line communication. ,Send. Then, if the communication device 3 cannot receive the notification signal from the communication device 4a within a predetermined time after the dimming signal is transmitted to the communication device 4a, the communication device 3 transmits the dimming signal again. That is, when the communication devices 3, 4a to 4c, which are the transmission sources of the dimming signal, cannot confirm that the communication devices 4a to 4d, which are the transmission destinations of the dimming signal, have received the dimming signal, the dimming signal. Resend each.
−照明システムの動作について−
図３は図２における照明システムの動作を示すフローチャートである。
-About the operation of the lighting system-
FIG. 3 is a flowchart showing the operation of the lighting system in FIG.
まず、コントローラ１は、操作部１１に対する操作入力に基づいて、調光信号を生成する。コントローラ１は、生成した調光信号を通信機器３に送信する。 First, the controller 1 generates a dimming signal based on the operation input to the operation unit 11. The controller 1 transmits the generated dimming signal to the communication device 3.
ステップＳ１１において、通信機器３は、電力線通信により、調光信号を通信機器４ａに送信する。ここで、通信機器３と通信機器４ａとの間の通信環境が悪い場合、通信機器４ａが調光信号を受信できないことがある。このため、調光信号の送信元である通信機器３は、ステップＳ１１の後、所定時間経過後に、調光信号の送信先である通信機器４ａに調光信号を再送信する（ステップＳ１２）。通信機器３は、所定時間経過するごとに、調光信号の再送信を行う。 In step S11, the communication device 3 transmits a dimming signal to the communication device 4a by power line communication. Here, if the communication environment between the communication device 3 and the communication device 4a is poor, the communication device 4a may not be able to receive the dimming signal. Therefore, the communication device 3 which is the transmission source of the dimming signal retransmits the dimming signal to the communication device 4a which is the transmission destination of the dimming signal after a lapse of a predetermined time after step S11 (step S12). The communication device 3 retransmits the dimming signal every time a predetermined time elapses.
通信機器４ａが調光信号を受信した場合（ステップＳ２１）、通信機器４ａは、調光信号の受信を調光信号の送信元である通信機器３に通知する（ステップＳ２２）。具体的に、通信機器４ａは、電力線通信により、調光信号の受信を通知する通知信号を送信元の通信機器３に送信する。通信機器３は、調光信号の送信先である通信機器４ａから通知信号を受けた場合、調光信号の再送信を停止する（ステップＳ１３）。 When the communication device 4a receives the dimming signal (step S21), the communication device 4a notifies the communication device 3 which is the source of the dimming signal of the reception of the dimming signal (step S22). Specifically, the communication device 4a transmits a notification signal notifying the reception of the dimming signal to the transmission source communication device 3 by power line communication. When the communication device 3 receives the notification signal from the communication device 4a to which the dimming signal is transmitted, the communication device 3 stops the retransmission of the dimming signal (step S13).
ステップＳ２３において、通信機器４ａは、通信機器３から受信した調光信号に含まれる光源２２の制御値を照明装置２ａ，２ｂの光源制御部２１に送信する。 In step S23, the communication device 4a transmits the control value of the light source 22 included in the dimming signal received from the communication device 3 to the light source control unit 21 of the lighting devices 2a and 2b.
ステップＳ２４において、通信機器４ａは、電力線通信により、通信機器３から受信した調光信号と同一の調光信号を通信機器４ｂに送信する。ここで、通信機器４ａと通信機器４ｂとの間の通信環境が悪い場合、通信機器４ｂが調光信号を受信できないことがある。このため、調光信号の送信元である通信機器４ａは、ステップＳ２４の後、所定時間経過後に、調光信号の送信先である通信機器４ｂに調光信号の再送信を行う（ステップＳ２５）。通信機器４ｂは、所定時間経過するごとに、調光信号の再送信を行う。 In step S24, the communication device 4a transmits the same dimming signal as the dimming signal received from the communication device 3 to the communication device 4b by power line communication. Here, if the communication environment between the communication device 4a and the communication device 4b is poor, the communication device 4b may not be able to receive the dimming signal. Therefore, the communication device 4a, which is the source of the dimming signal, retransmits the dimming signal to the communication device 4b, which is the transmission destination of the dimming signal, after a lapse of a predetermined time after step S24 (step S25). .. The communication device 4b retransmits the dimming signal every time a predetermined time elapses.
通信機器４ｂが調光信号を受信した場合（ステップＳ３１）、ステップＳ３２において、通信機器４ｂは、調光信号の受信を調光信号の送信元である通信機器４ａに通知する。具体的に、通信機器４ｂは、電力線通信により、調光信号の受信を通知する通知信号を送信元の通信機器４ａに送信する。通信機器４ａは、調光信号の送信先である通信機器４ｂから調光信号の受信通知を受けた場合、調光信号の再送信を停止する（ステップＳ２６）。 When the communication device 4b receives the dimming signal (step S31), in step S32, the communication device 4b notifies the communication device 4a, which is the transmission source of the dimming signal, of the reception of the dimming signal. Specifically, the communication device 4b transmits a notification signal notifying the reception of the dimming signal to the transmission source communication device 4a by power line communication. When the communication device 4a receives the reception notification of the dimming signal from the communication device 4b to which the dimming signal is transmitted, the communication device 4a stops the retransmission of the dimming signal (step S26).
以下同様に、通信機器４ｂと通信機器４ｃとの間、通信機器４ｃと通信機器４ｄとの間で、ステップＳ２３〜Ｓ２６，Ｓ３１，Ｓ３２が順次実行される。 Similarly, steps S23 to S26, S31, and S32 are sequentially executed between the communication device 4b and the communication device 4c, and between the communication device 4c and the communication device 4d.
以上の構成により、コントローラ１の制御部１３は、全ての照明装置２の光源２２の制御値（制御データ）を含む調光信号を生成する。通信機器３は、コントローラ１から受信した調光信号を、電力線通信により、通信機器４ａに送信する。通信機器３は、所定時間経過するまでに、通信機器４ａから調光信号の受信を通知する通知信号が受信できない場合、すなわち、通信機器４ａから調光信号の受信を確認できない場合、電力線通信により、通信機器４ａに調光信号の再送信を行う。また、通信機器４ａは、通信機器３から調光信号を受信した場合、電力線通信により、通信機器３から調光信号を受信した調光信号と同一の調光信号を通信機器４ｂに送信する。通信機器４ａは、所定時間経過するまでに、通信機器４ａから調光信号の受信を通知する通知信号が受信できない場合、すなわち、通信機器４ｂが調光信号を受信したことを確認できない場合、電力線通信により、通信機器４ｂに調光信号の再送信を行う。また、通信機器４ａは、通信機器３から受信した調光信号に、自己に接続された照明装置２ａ，２ｂの制御値が含まれる場合、各制御値を対応する照明装置２ａ，２ｂに送信する。 With the above configuration, the control unit 13 of the controller 1 generates a dimming signal including the control values (control data) of the light sources 22 of all the lighting devices 2. The communication device 3 transmits the dimming signal received from the controller 1 to the communication device 4a by power line communication. When the communication device 3 cannot receive the notification signal notifying the reception of the dimming signal from the communication device 4a by the lapse of a predetermined time, that is, when the reception of the dimming signal cannot be confirmed from the communication device 4a, the communication device 3 uses power line communication. , Retransmit the dimming signal to the communication device 4a. When the communication device 4a receives the dimming signal from the communication device 3, the communication device 4a transmits the same dimming signal as the dimming signal received from the communication device 3 to the communication device 4b by power line communication. When the communication device 4a cannot receive the notification signal notifying the reception of the dimming signal from the communication device 4a by the lapse of a predetermined time, that is, when it cannot be confirmed that the communication device 4b has received the dimming signal, the power line By communication, the dimming signal is retransmitted to the communication device 4b. Further, when the dimming signal received from the communication device 3 includes the control values of the lighting devices 2a and 2b connected to the communication device 4a, the communication device 4a transmits each control value to the corresponding lighting devices 2a and 2b. ..
すなわち、通信機器３，４は、調光信号の送信先である通信機器４において、調光信号が受信できなかった場合、調光信号の再送信を行う機能を備えている。これにより、調光信号の伝送が遮断される可能性を低減させることができる。 That is, the communication devices 3 and 4 have a function of retransmitting the dimming signal when the dimming signal cannot be received in the communication device 4 to which the dimming signal is transmitted. This makes it possible to reduce the possibility that the transmission of the dimming signal is interrupted.
また、調光信号は全ての照明装置２における光源２２の制御値を含む。これにより、通信機器４は、受信した調光信号の転送を行うとともに、受信した調光信号に含まれる制御値を、自己に接続された照明装置２が使用するため、各照明装置２に調光信号を伝送するために必要となる調光信号の送信回数を抑えることができ、調光信号の伝送遅延を抑えることができる。 Further, the dimming signal includes the control value of the light source 22 in all the lighting devices 2. As a result, the communication device 4 transfers the received dimming signal, and the control value included in the received dimming signal is used by the lighting device 2 connected to itself, so that each lighting device 2 is adjusted. The number of transmissions of the dimming signal required for transmitting the optical signal can be suppressed, and the transmission delay of the dimming signal can be suppressed.
したがって、調光信号の伝送が遮断される可能性を低減させつつ、調光信号の伝送遅延を抑えることができる。 Therefore, it is possible to suppress the transmission delay of the dimming signal while reducing the possibility that the transmission of the dimming signal is interrupted.
（その他の実施形態）
以上のように、本出願において開示する技術の例示として、実施形態について説明した。しかしながら、本開示における技術は、これに限定されず、適宜、変更、置き換え、付加、省略などを行った実施形態にも適用可能である。
(Other embodiments)
As described above, embodiments have been described as examples of the techniques disclosed in this application. However, the technique in the present disclosure is not limited to this, and can be applied to embodiments in which changes, replacements, additions, omissions, etc. are made as appropriate.
なお、上記実施形態において、コントローラ１の制御部１３は、調光信号に宛先（例えば、照明装置２，通信機器４等に）を設定してもよい。この場合、各通信機器４は、調光信号に設定された宛先に従って、調光信号を伝送してもよい。例えば、図２において、通信機器３ａは、宛先を照明装置２ｆに設定した調光信号を通信機器４ａに送信したとする。通信機器４ａは、通信機器３から受信した調光信号と同一の調光信号を通信機器４ｂに送信するとともに、この調光信号に含まれる制御値を照明装置２ａ，２ｂに送信する。すなわち、通信機器４は、受信した調光信号に自己に接続された照明装置２の制御値が含まれている場合、調光信号に設定された宛先に関わらずに、当該制御値を対応する照明装置２に送信してもよい。また、通信機器４は、調光信号を受信した場合、調光信号に設定された宛先に関わらず、受信した調光信号と同一の調光信号を他の通信機器４に転送してもよい。 In the above embodiment, the control unit 13 of the controller 1 may set a destination (for example, a lighting device 2, a communication device 4, etc.) for the dimming signal. In this case, each communication device 4 may transmit the dimming signal according to the destination set in the dimming signal. For example, in FIG. 2, it is assumed that the communication device 3a transmits a dimming signal whose destination is set to the lighting device 2f to the communication device 4a. The communication device 4a transmits the same dimming signal as the dimming signal received from the communication device 3 to the communication device 4b, and also transmits the control values included in the dimming signal to the lighting devices 2a and 2b. That is, when the received dimming signal includes the control value of the lighting device 2 connected to itself, the communication device 4 corresponds to the control value regardless of the destination set in the dimming signal. It may be transmitted to the lighting device 2. Further, when the communication device 4 receives the dimming signal, the communication device 4 may transfer the same dimming signal as the received dimming signal to another communication device 4 regardless of the destination set in the dimming signal. ..
また、上記実施形態において、通信機器３は、通信機器４ａに調光信号を送信してから所定期間経過するまでに、通信機器４ａからの通知信号を受信した場合、調光信号の再送信をしなくてもよい。同様に、通信機器４ａは、通信機器４ｂに調光信号を送信してから所定期間経過するまでに、通信機器４ｂからの通知信号を受信した場合、調光信号の再送信をしなくてもよい。 Further, in the above embodiment, when the communication device 3 receives the notification signal from the communication device 4a within a predetermined period after transmitting the dimming signal to the communication device 4a, the communication device 3 retransmits the dimming signal. You don't have to. Similarly, when the communication device 4a receives the notification signal from the communication device 4b within a predetermined period after transmitting the dimming signal to the communication device 4b, the communication device 4a does not need to retransmit the dimming signal. Good.
また、上記実施形態において、通信機器３は、コントローラ１と別に設けられているが、通信機器３をコントローラ１に備えてもよい。また、通信機器４は、照明装置２と別に設けられているが、通信機器４を照明装置２に備えてもよい。 Further, in the above embodiment, the communication device 3 is provided separately from the controller 1, but the communication device 3 may be provided in the controller 1. Further, although the communication device 4 is provided separately from the lighting device 2, the communication device 4 may be provided in the lighting device 2.
また、上記実施形態において、コントローラ１の制御部１３は、調光信号をＤＭＸ−５１２規格以外のプロトコルで生成してもよい。また、コントローラ１の制御部１３は、全ての照明装置２の制御値を含まなくてもよい。ただし、コントローラ１の制御部１３は、２以上の照明装置２の制御値を含むように調光信号を生成する。 Further, in the above embodiment, the control unit 13 of the controller 1 may generate a dimming signal by a protocol other than the DMX-512 standard. Further, the control unit 13 of the controller 1 does not have to include the control values of all the lighting devices 2. However, the control unit 13 of the controller 1 generates a dimming signal so as to include the control values of two or more lighting devices 2.
また、上記実施形態において、コントローラ１および照明装置２は、通信機器３，４から電力の供給を受けているが、その他の装置等を介して、電力の供給を受けてもよい。 Further, in the above embodiment, the controller 1 and the lighting device 2 are supplied with electric power from the communication devices 3 and 4, but may be supplied with electric power via other devices or the like.
本発明は、電力線通信により複数の照明装置を制御する照明システムにおいて、調光信号の伝送が遮断される可能性を低減させつつ、調光信号の送受信回数を抑えることにより調光信号の伝送遅延を抑えることができる。 The present invention reduces the possibility that the transmission of a dimming signal is interrupted in a lighting system that controls a plurality of lighting devices by power line communication, and suppresses the number of transmissions and receptions of the dimming signal to delay the transmission of the dimming signal. Can be suppressed.
１ コントローラ
２（２ａ〜２ｆ） 照明装置
３，４（４ａ〜４ｄ） 通信機器
５ 電力線
３２，４２ 通信部
1 Controller 2 (2a-2f) Lighting device 3,4 (4a-4d) Communication equipment 5 Power line 32,42 Communication unit
Claims (8)
前記複数の照明装置を制御するコントローラと、
前記複数の照明装置と接続され、前記コントローラと電力線通信によって通信を行う複数の通信機器と
を備え、
前記コントローラは、前記複数の照明装置を制御する調光信号を生成し、電力線を介して送信し、
前記通信機器は、
前記調光信号を、前記電力線を介して受信し、
受信した調光信号に、接続された前記照明装置に対応する制御値が含まれるとき、当該制御値を前記照明装置に送信し、
受信した調光信号と同一の調光信号を、他の通信機器に前記電力線を介して送信し、
前記他の通信機器が前記調光信号を受信したことを確認できない場合、送信した調光信号を再送する
ことを特徴とする照明システム。 With multiple lighting devices
A controller that controls the plurality of lighting devices and
It is provided with a plurality of communication devices that are connected to the plurality of lighting devices and communicate with the controller by power line communication.
The controller generates a dimming signal that controls the plurality of lighting devices and transmits the dimming signal via a power line.
The communication device is
The dimming signal is received via the power line,
When the received dimming signal includes a control value corresponding to the connected lighting device, the control value is transmitted to the lighting device.
The same dimming signal as the received dimming signal is transmitted to another communication device via the power line.
A lighting system characterized in that when it cannot be confirmed that the other communication device has received the dimming signal, the transmitted dimming signal is retransmitted.
前記通信機器は、
前記調光信号を受信した場合、前記電力線を介して、前記調光信号の受信を通知する通知信号を、前記調光信号の送信元である、前記コントローラまたは前記通信機器に送信し、
前記コントローラまたは前記通信機器は、
前記通知信号を受信した場合、前記送信した調光信号の再送を停止する
ことを特徴とする照明システム。 In the lighting system according to claim 1,
The communication device is
When the dimming signal is received, a notification signal notifying the reception of the dimming signal is transmitted to the controller or the communication device, which is the source of the dimming signal, via the power line.
The controller or the communication device
A lighting system characterized in that when the notification signal is received, the retransmission of the transmitted dimming signal is stopped.
前記コントローラは、前記調光信号の宛先を、前記複数の照明装置のうち少なくともいずれか１つに設定し、
前記通信機器は、受信した調光信号に自己に接続された照明装置に対応する制御値が含まれている場合、当該調光信号に設定された宛先に関わらず、当該制御値を対応する照明装置に送信する
ことを特徴とする照明システム。 In the lighting system according to claim 1 or 2.
The controller sets the destination of the dimming signal to at least one of the plurality of lighting devices.
When the received dimming signal includes a control value corresponding to a lighting device connected to itself, the communication device performs lighting corresponding to the control value regardless of the destination set in the dimming signal. A lighting system characterized by transmitting to a device.
前記複数の通信機器は、２以上の前記照明装置に接続される通信機器を含むことを特徴とする照明システム。 In the lighting system according to any one of claims 1 to 3.
A lighting system, wherein the plurality of communication devices include communication devices connected to two or more of the lighting devices.
前記複数の照明装置は、前記通信機器を内蔵する照明装置を含むことを特徴とする照明システム。 In the lighting system according to any one of claims 1 to 4.
The plurality of lighting devices are a lighting system including a lighting device incorporating the communication device.
前記照明装置を含む複数の照明装置を制御するコントローラが生成した調光信号を、電力線を介して、受信し、
受信した調光信号に、接続された前記照明装置に対応する制御値が含まれているとき、当該制御値を前記照明装置に送信し、
受信した調光信号と同一の調光信号を、他の通信機器に電力線を介して送信し、
前記他の通信機器が前記調光信号を受信したことを確認できない場合、送信した調光信号を再送する
ことを特徴とする通信機器。 It is a communication device that can execute power line communication and is used by connecting to a lighting device.
A dimming signal generated by a controller that controls a plurality of lighting devices including the lighting device is received via a power line, and the light control signal is received.
When the received dimming signal includes a control value corresponding to the connected lighting device, the control value is transmitted to the lighting device.
The same dimming signal as the received dimming signal is transmitted to other communication devices via the power line.
A communication device characterized in that when it cannot be confirmed that the other communication device has received the dimming signal, the transmitted dimming signal is retransmitted.
前記複数の照明装置のうち少なくとも１つは、
調光信号を、電力線を介して受信し、
受信した調光信号に、自己に対応する制御データが含まれるとき、当該制御データに従って自己の光源の調光を制御し、
受信した調光信号と同一の調光信号を、他の照明装置に前記電力線を介して送信し、
前記他の照明装置が前記調光信号を受信したことを確認できない場合、送信した調光信号を再送する
ことを特徴とする照明システムにおけるデータ伝送方法。
A data transmission method in a lighting system equipped with multiple lighting devices.
At least one of the plurality of lighting devices
The dimming signal is received via the power line,
When the received dimming signal includes control data corresponding to the self, the dimming of the own light source is controlled according to the control data.
The same dimming signal as the received dimming signal is transmitted to another lighting device via the power line.
A data transmission method in a lighting system, characterized in that the transmitted dimming signal is retransmitted when it cannot be confirmed that the other lighting device has received the dimming signal.
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