JP5286770B2 - Dimming system - Google Patents

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JP5286770B2
JP5286770B2 JP2007320128A JP2007320128A JP5286770B2 JP 5286770 B2 JP5286770 B2 JP 5286770B2 JP 2007320128 A JP2007320128 A JP 2007320128A JP 2007320128 A JP2007320128 A JP 2007320128A JP 5286770 B2 JP5286770 B2 JP 5286770B2
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dimming
switch element
dimming control
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control
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JP2009146617A (en
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幸男 石田
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Toshiba Lighting and Technology Corp
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Description

この発明は、調光制御盤から伝送線を介して送信される調光制御信号を調光器にて受信し、調光器が接続されている照明器具の調光制御を行う調光制御システムに関するものであり、特にＬＥＤなどの低消費電力の照明器具を用いた調光制御システムに関するものである。   The present invention relates to a dimming control system that receives a dimming control signal transmitted from a dimming control panel via a transmission line by a dimmer and performs dimming control of a lighting fixture to which the dimmer is connected. In particular, the present invention relates to a dimming control system using a lighting device with low power consumption such as an LED.

従来、ＬＥＤを用いた調光システムが知られており、位相調整のために生じる電力損失の低減に関する工夫が行われている（特許文献１参照）。   Conventionally, a dimming system using an LED is known, and a device for reducing a power loss generated for phase adjustment has been devised (see Patent Document 1).

この特許文献１の調光システムは、調光制御盤と調光器とを伝送線により接続したものではなく、このような伝送線により接続したシステムにおいて特に伝送線を介して電源供給するような場合には、伝送線を用いて調光制御盤へ監視情報を送信する手法の開発が求められている。   The dimming system of this Patent Document 1 is not such that the dimming control panel and the dimmer are connected by a transmission line. In the system connected by such a transmission line, power is supplied particularly via the transmission line. In some cases, development of a technique for transmitting monitoring information to a dimming control panel using a transmission line is required.

また、伝送線を介して電源供給しない特許文献１に示す調光システムにおいても、位相角制御にサイリスタなどを用いること、更に、サイリスタは保持電流を下回るとオフすることが記載されている。このようなシステムでは、調光制御対象のＬＥＤが低消費電力であるにも拘らず、サイリスタは保持電流を下回るとオフなるために負荷であるＬＥＤに無駄な電力供給を行う必要があり、省エネの観点から問題となる。
特願２００７−２２７１５５号公報 Further, in the dimming system shown in Patent Document 1 in which power is not supplied via a transmission line, it is described that a thyristor or the like is used for phase angle control, and that the thyristor is turned off when the holding current falls below a holding current. In such a system, although the LED subject to dimming control has low power consumption, the thyristor is turned off when the holding current falls below the holding current. It becomes a problem from the point of view.
Japanese Patent Application No. 2007-227155

本発明は上記のような低消費電力の照明器具を用いて、調光制御盤と調光器とを伝送線により接続した調光システムにおける問題点を解決せんとしてなされたもので、その目的は、伝送線を介して電源供給するような場合には、伝送線を用いて調光制御盤へ監視情報を適切に送信することが可能な調光システムを提供することである。また、本発明では、低消費電力の照明器具を接続することによって確実にシステムの低消費電力化を図ることができるようにすることである。   The present invention has been made as a solution to the problems in the dimming system in which the dimming control panel and the dimmer are connected by a transmission line using the above-described lighting device with low power consumption. In the case of supplying power via a transmission line, it is to provide a dimming system capable of appropriately transmitting monitoring information to the dimming control panel using the transmission line. Moreover, in this invention, it is enabling it to aim at the reduction in power consumption of a system reliably by connecting the lighting fixture of low power consumption.

本発明に係る調光システムは、伝送線を介して調光制御信号の送信及び状態監視情報に係る信号の受信を行う調光制御盤と；伝送線に接続されると共に照明器具に接続され、調光制御盤から送られる調光制御信号に応じて照明器具の光出力の制御を行う制御部を有し、照明器具に電力を供給する調光器と；を具備する調光制御システムであって、調光制御盤は、伝送線を介して電力供給を行う電力供給部を備え、調光器は、制御部による制御に応じて照明器具に印加される電圧または流れる電流を検出し、検出結果を状態監視情報に係る信号として調光制御盤へ送信する監視情報送信部を備え、制御部は、照明器具に供給する電力を位相制御するための第１のスイッチ素子と、第１のスイッチ素子に並列接続され、照明器具に供給する電力を位相制御し、第１のスイッチ素子より容量の小さい第２のスイッチ素子と、起動時における第１のスイッチ素子動作の際に流れる電流を検出し、更に前記第１のスイッチ素子をオンさせる制御信号の停止後に流れる前記第１のスイッチ素子の保持電流を検出し、この検出結果に応じて第１のスイッチ素子または第２のスイッチ素子を選択して位相制御を実行する選択制御手段とを具備することを特徴とする。 A dimming system according to the present invention includes a dimming control board that transmits a dimming control signal and receives a signal related to state monitoring information via a transmission line; and is connected to a transmission line and a lighting fixture; A dimmer that has a controller that controls the light output of the lighting fixture in accordance with a dimming control signal sent from the dimming control panel, and that supplies power to the lighting fixture. The dimming control panel includes a power supply unit that supplies power via a transmission line, and the dimmer detects and detects a voltage applied to the lighting fixture or a flowing current according to control by the control unit. A monitoring information transmitting unit that transmits the result to the dimming control panel as a signal related to the state monitoring information is provided, and the control unit includes a first switch element for phase control of power supplied to the lighting fixture, and a first switch The power connected to the elements in parallel and supplied to the lighting fixtures Phase controlled, and a small second switch element of capacity than the first switch element, detects the current flowing in the first switching element operating at the time of activation, the control signal for turning on further said first switching element Selection control means for detecting a holding current of the first switch element that flows after stopping and selecting a first switch element or a second switch element according to the detection result to execute phase control. It is characterized by that.

照明器具は、調光器によって電力制御可能なものであれば、白熱灯、蛍光灯、高圧放電灯を含むが、例えばＬＥＤ（発光ダイオード）や有機ＥＬ（エレクトロ・ルミネッセンス）素子等の低消費電力の照明器具が好ましい。状態監視情報に係る信号とは、照明器具に印加される電圧または流れる電流を検出した結果を、そのまま信号にして送信するもので、そのときの調光率を含んで送信される。状態監視情報を得るときには、調光率を予め定められた範囲において自動的に変動させ、或いは手動において所要範囲においてに変動させて、検出を行う。   The lighting fixtures include incandescent lamps, fluorescent lamps, and high-pressure discharge lamps as long as the power can be controlled by the dimmer, but low power consumption such as LEDs (light emitting diodes) and organic EL (electroluminescence) elements. The luminaire is preferred. The signal related to the state monitoring information is a signal obtained by transmitting the result of detecting the voltage applied to the luminaire or the flowing current as it is, and is transmitted including the dimming rate at that time. When obtaining the state monitoring information, detection is performed by automatically varying the dimming rate within a predetermined range or manually varying within the required range.

本発明に係る調光システムでは、照明器具は、照明器具の故障時に所定パターンの電流を流すことにより故障情報に係る信号を送信するものであり、調光率ゼロのときに電圧がゼロでない区間を設けて所定パターンの電流を流す制御を行うことを特徴とする。
In dimming system according to the present invention, the luminaire is for transmitting a signal according to the fault information by supplying a current of a predetermined pattern at the time of failure of the lighting fixture, the voltage at the dimming ratio zero is not zero interval To control the flow of a predetermined pattern of current .

スイッチ素子は、サイリスタやトライアックを許容する。スイッチ素子の容量は、採用される照明器具の消費電力に応じて適宜設定される。   The switch element allows thyristors and triacs. The capacity | capacitance of a switch element is suitably set according to the power consumption of the lighting fixture employ | adopted.

本発明に係る調光制御システムによれば、調光制御盤の電力供給部から伝送線を介して電力供給が行われる状態において、調光器の監視情報送信部は、制御部による制御に応じて照明器具に印加される電圧または流れる電流を検出し、検出結果を状態監視情報に係る信号として調光制御盤へ送信するので、調光制御盤或いは調光制御盤より上位の装置において照明器具の状態を適切に把握することができる。   According to the dimming control system of the present invention, the monitoring information transmission unit of the dimmer responds to the control by the control unit in a state where power is supplied from the power supply unit of the dimming control panel via the transmission line. The voltage applied to the lighting fixture or the flowing current is detected, and the detection result is transmitted to the dimming control panel as a signal related to the state monitoring information. Can be properly grasped.

本発明に係る調光制御システムによれば、照明器具は、照明器具の故障時に所定パターンの電流を流すことにより故障情報に係る信号を送信するものであり、調光率ゼロのときに電圧がゼロでない区間を設けて所定パターンの電流を流す制御を行うものであるので、電圧がゼロでない区間において故障情報である電流を流すことにより確実に故障状態を送信することができる。
According to the dimming control system according to the present invention, the luminaire is for transmitting a signal according to the fault information by supplying a current of a predetermined pattern at the time of failure of the lighting fixture, the voltage at the dimmer rate zero Since the control is performed such that a predetermined pattern of current flows by providing a non-zero interval, a failure state can be reliably transmitted by flowing a current as failure information in a non-zero interval.

本発明に係る調光制御システムによれば、調光制御信号に応じて光出力の制御を行う制御部が、照明器具に供給する電力を位相制御するための第１のスイッチ素子と、第１のスイッチ素子に並列接続され、照明器具に供給する電力を位相制御し、第１のスイッチ素子より容量が小さい第２のスイッチ素子とを有し、起動時における第１のスイッチ素子動作の際に流れる電流を検出し、この検出結果に応じて第１のスイッチ素子または第２のスイッチ素子を選択して位相制御を実行するので、電流検出により照明器具に必要な電力を検出でき、これに応じて第１のスイッチ素子または第２のスイッチ素子を選択して無駄な電力供給がなされることを防ぐことができる。   According to the dimming control system according to the present invention, the control unit that controls the light output in accordance with the dimming control signal has the first switch element for phase-controlling the electric power supplied to the lighting fixture, And a second switch element having a capacity smaller than that of the first switch element, and connected in parallel to the switch elements of the first and second switch elements. Since the flowing current is detected and the phase control is executed by selecting the first switch element or the second switch element according to the detection result, the electric power necessary for the lighting fixture can be detected by the current detection. Thus, it is possible to prevent unnecessary power supply by selecting the first switch element or the second switch element.

以下添付図面を参照して、本発明に係る調光システムの実施例を説明する。各図において同一の構成要素には、同一の符号を付して重複する説明を省略する。   Embodiments of a light control system according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals and redundant description is omitted.

図１に第１の実施例に係る調光システムの構成図を示す。このシステムでは伝送線３０に、調光制御盤２０と複数の調光器１０−１、１０−２、・・・、１０−ｎが接続されている。調光器１０−１、１０−２、・・・、１０−ｎには、低消費電力の照明器具であるＬＥＤ（発光ダイオード）４０−１、４０−２、・・・、４０−ｎが接続されている。   FIG. 1 shows a configuration diagram of a light control system according to the first embodiment. In this system, a dimming control panel 20 and a plurality of dimmers 10-1, 10-2,..., 10-n are connected to the transmission line 30. The dimmers 10-1, 10-2,..., 10-n include LEDs (light emitting diodes) 40-1, 40-2,. It is connected.

調光制御盤２０には、調光制御部２１と電力供給部２２とが備えられている。調光制御部２１は、伝送線３０を介して調光制御信号の送信及び状態監視情報に係る信号の受信を行うものである。電力供給部２２は、伝送線３０を介して電力供給を行うものである。   The dimming control panel 20 includes a dimming control unit 21 and a power supply unit 22. The dimming control unit 21 transmits a dimming control signal and receives a signal related to the state monitoring information via the transmission line 30. The power supply unit 22 supplies power via the transmission line 30.

具体的には、電力供給部２２は、図２の前半側に示すように±２４Ｖの電圧を所定の期間で反転させて、電力供給を行う。調光制御部２１は、図２の後半側に示すように、所定パターン（所定の０、１の配列）からなるスタートコードで始まる調光制御信号を送信する。調光制御信号には、スタートコードに続き、調光か点灯・消灯であるかなどの「モード」情報、対象調光器の「アドレス」、調光率を表す「データ」が含まれ、１フレームはストップビットにより区切られている。   Specifically, the power supply unit 22 performs power supply by inverting a voltage of ± 24 V in a predetermined period as shown in the first half of FIG. As shown in the second half of FIG. 2, the dimming control unit 21 transmits a dimming control signal starting with a start code having a predetermined pattern (a predetermined array of 0 and 1). The dimming control signal includes “mode” information such as whether the dimming is on or off, the “address” of the target dimmer, and “data” indicating the dimming rate, following the start code. Frames are delimited by stop bits.

調光器１０−１、１０−２、・・・、１０−ｎは、制御部１１と監視情報送信部１２とを備える。制御部１１は、調光制御盤２０から送られる調光制御信号に応じて照明器具であるＬＥＤ４０の光出力の制御を行うものである。監視情報送信部１２は、制御部１１による制御に応じて照明器具であるＬＥＤ４０に印加される電圧または流れる電流を検出し、検出結果を状態監視情報に係る信号として調光制御盤２０へ送信するものである。   The dimmers 10-1, 10-2,..., 10-n include a control unit 11 and a monitoring information transmission unit 12. The control part 11 controls the light output of LED40 which is a lighting fixture according to the dimming control signal sent from the dimming control board 20. FIG. The monitoring information transmission unit 12 detects a voltage applied to the LED 40 that is a lighting fixture or a flowing current in accordance with control by the control unit 11, and transmits the detection result to the dimming control panel 20 as a signal related to the state monitoring information. Is.

調光器１０−１、１０−２、・・・、１０−ｎは、実際には、図３に示されるように、マイクロコンピュータ１４を中心に構成され、ＰＷＭ（パルス幅変調）送信部１５、電圧検出ＩＦ（インタフェース）１６、送受信ＩＦ（インタフェース）１７を備える。マイクロコンピュータ１４は、調光信号を受け取ると、これに基づきＰＷＭ送信部１５を制御してＰＷＭ信号をＬＥＤ４０に与え、ＬＥＤ４０から所要強度の光を出力させる。   The dimmers 10-1, 10-2,..., 10 -n are actually configured around a microcomputer 14 as shown in FIG. A voltage detection IF (interface) 16 and a transmission / reception IF (interface) 17. When the microcomputer 14 receives the dimming signal, the microcomputer 14 controls the PWM transmission unit 15 based on the dimming signal, gives the PWM signal to the LED 40, and causes the LED 40 to output light having a required intensity.

ＰＷＭ送信部１５は、ＰＷＭ信号として、例えば、図４（ｂ）、（ｃ）に示されるように２５％や７０％のデューティ比のパルスを送出する。また、消灯の場合には、０Ｖを出力し（図４（ａ））、全光の場合には一最大レベルを連続出力する（図４（ｄ））。これに対応して、ＬＥＤ４０内のドライバが印加電圧の制御を行う。   For example, the PWM transmitter 15 transmits a pulse having a duty ratio of 25% or 70% as shown in FIGS. 4B and 4C as a PWM signal. Further, when the light is off, 0 V is output (FIG. 4A), and when it is all light, one maximum level is continuously output (FIG. 4D). In response to this, the driver in the LED 40 controls the applied voltage.

電圧検出ＩＦ（インタフェース）１６は、ＬＥＤ４０へ電力供給する経路に設けられた抵抗Ｒの両端間から電圧を取り出し、マイクロコンピュータ１４へ与える。マイクロコンピュータ１４は、伝送線３０に対し、図２を用いて説明したフォーマットのビット配列により、電圧検出結果を状態監視情報に係る信号として調光制御盤２０へ返送する。なお、調光器１０−１、１０−２、・・・、１０−ｎから状態監視情報に係る信号を送るタイミングは、例えば、調光制御盤２０から状態監視情報の要求信号を送信し、これを受け取ったときから、それぞれ所定時間後の所定のタイムスロットと設定されている。   The voltage detection IF (interface) 16 takes out the voltage from both ends of the resistor R provided in the path for supplying power to the LED 40 and supplies it to the microcomputer 14. The microcomputer 14 returns the voltage detection result to the dimming control panel 20 as a signal related to the state monitoring information with respect to the transmission line 30 by the bit arrangement in the format described with reference to FIG. In addition, the timing which transmits the signal which concerns on state monitoring information from dimmer 10-1, 10-2, ..., 10-n transmits the request signal of state monitoring information from the light control board 20, for example, A predetermined time slot after a predetermined time from the time of receiving this is set.

調光制御盤２０から状態監視情報の要求信号が送信されたときに備えて、調光率（ＰＷＭデューティ比）を一定の範囲で変化させるために、例えば、図５に示すような調光試験用テーブルＴＢ１を有し、これに応じて調光率を変化させて電圧検出を行う。例えば、２０％、２５％、・・・、８０％と調光率を変化させて電圧検出を行う。ここでは、２０％より小さい調光率では、ＬＥＤの点灯が起こらないため、最低が２０％とされ、８０％より大きい調光率では、全光となるため最高が８０％とされている。   In order to change the dimming rate (PWM duty ratio) within a certain range in preparation for a state monitoring information request signal transmitted from the dimming control panel 20, for example, a dimming test as shown in FIG. The table TB1 is provided, and voltage detection is performed by changing the dimming rate according to the table TB1. For example, voltage detection is performed by changing the dimming rate to 20%, 25%,..., 80%. Here, at a dimming rate less than 20%, the LED does not light up, so the minimum is 20%, and at a dimming rate greater than 80%, the maximum is 80% because all the light is emitted.

また、ＬＥＤ４０に流れる電流は、温度等により変化するものであるから、マイクロコンピュータ１４は、故障判定範囲を示す情報が保持されたテーブルＴＢ２（図５）を有し、これに応じて調光試験用テーブルＴＢ１の値を変更した調光率を用いて電圧検出を行う。ここでは、±５％が設定されているため、最低が１５％とされ、最高が８５％とされて調光率を変化させて電圧検出を行う。調光制御盤２０へ送信する状態監視情報には、調光率を含めて検出した電圧をデータとして送信する。調光試験用テーブルＴＢ１の値、テーブルＴＢ２の値は、当初から設定してあり、自動で調光率を変化させて電圧検出を行う。しかし、テーブルＴＢ１とＴＢ２の値を設定するディップスイッチなどを調光器１０−１、１０−２、・・・、１０−ｎに備えさせ、手動で設定する用にしても良い。   Further, since the current flowing through the LED 40 changes depending on the temperature or the like, the microcomputer 14 has a table TB2 (FIG. 5) in which information indicating the failure determination range is held, and a dimming test is performed accordingly. Voltage detection is performed using the dimming rate obtained by changing the value of the table TB1. Since ± 5% is set here, the minimum is set to 15% and the maximum is set to 85%, and the voltage detection is performed by changing the dimming rate. In the state monitoring information transmitted to the dimming control panel 20, the detected voltage including the dimming rate is transmitted as data. The values in the dimming test table TB1 and the values in the table TB2 are set from the beginning, and the voltage is detected by automatically changing the dimming rate. However, the dimmers 10-1, 10-2,..., 10-n may be provided with dip switches for setting the values of the tables TB1 and TB2 and set manually.

ＬＥＤ４０は、内部のドライバが故障検出機能を備え、ＬＥＤ素子（或いはＬＥＤ素子群）に流れる電流が異常である場合には、故障情報を電流返送する。故障情報は、調光器１０−１、１０−２、・・・、１０−ｎとＬＥＤ４０−１、４０−２、・・・、４０−ｎを接続する信号線に、例えば図６の如く所定ビット配列となるように電流ＩXXを流す。ＰＷＭ信号が消灯を示すものでない限りは、図６（ｂ）〜（ｄ）の如くＰＷＭ信号のオン区間に電流ＩXXを流すことができる。しかし消灯である場合には、電流ＩXXを流すことができないので、マイクロコンピュータ１４は一定の時間毎に、電圧がゼロでない区間Ｄを設けるようにＰＷＭ送信部１５を制御する。これにより図６（ａ）の如く電圧がゼロでない区間Ｄに電流ＩXXを流すことができる。消灯である場合には、電圧がゼロでない区間Ｄを一定周期Ｔで設ける。 The LED 40 has a failure detection function in its internal driver, and when the current flowing through the LED element (or LED element group) is abnormal, returns fault information as a current. The failure information is transmitted to signal lines connecting the dimmers 10-1, 10-2,..., 10-n and the LEDs 40-1, 40-2,. A current I XX is supplied so as to obtain a predetermined bit arrangement. As long as the PWM signal does not indicate light extinction, the current I XX can flow in the ON period of the PWM signal as shown in FIGS. However, since the current I XX cannot flow when the light is off, the microcomputer 14 controls the PWM transmitter 15 so as to provide a section D in which the voltage is not zero at regular intervals. As a result, the current I XX can flow in the section D where the voltage is not zero as shown in FIG. When the light is off, a section D in which the voltage is not zero is provided with a constant period T.

所定ビット配列の電流ＩXXにより、抵抗Ｒの両端間電圧が所定ビット配列に対応して変化し、この電圧値の変化をマイクロコンピュータ１４がデコードして、故障を把握し、状態監視情報として調光制御盤２０へ送信する。斯して、照明器具であるＬＥＤ４０−１、４０−２、・・・、４０−ｎと調光器１０−１、１０−２、・・・、１０−ｎの間の接続ラインによって、適切に照明器具であるＬＥＤ４０−１、４０−２、・・・、４０−ｎの状態監視を行うことができる。調光制御盤２０には、図１に示されるように伝送路５０を介して上位装置が接続されており、状態監視情報を上位装置へ送信可能であり、照明器具であるＬＥＤ４０−１、４０−２、・・・、４０−ｎの状態を適切に把握することができる。 Due to the current I XX of the predetermined bit arrangement, the voltage across the resistor R changes corresponding to the predetermined bit arrangement, and the microcomputer 14 decodes this voltage value change, grasps the failure, and adjusts it as status monitoring information. Transmit to the light control panel 20. Therefore, it is appropriate depending on the connection line between the LEDs 40-1, 40-2,..., 40-n and the dimmers 10-1, 10-2,. In addition, it is possible to monitor the state of the LEDs 40-1, 40-2,. As shown in FIG. 1, a higher-level device is connected to the dimming control panel 20 via a transmission path 50, and state monitoring information can be transmitted to the higher-level device, and LEDs 40-1 and 40 that are lighting fixtures. ,..., 40-n can be properly grasped.

図７には、第２の実施例に係る調光システムが示されている。このシステムでは、ＬＥＤ４０−１、４０−２、・・・、４０−ｎに調光器６０−１、６０−２、・・・、６０−ｎが接続されている。調光器６０−１、６０−２、・・・、６０−ｎには、交流電源７０から電力供給がされている。   FIG. 7 shows a light control system according to the second embodiment. In this system, dimmers 60-1, 60-2,..., 60-n are connected to the LEDs 40-1, 40-2,. The dimmers 60-1, 60-2,..., 60-n are supplied with power from the AC power supply 70.

調光器６０−１、６０−２、・・・、６０−ｎは、制御部６１と監視情報送信部６２とを備える。制御部６１は、調光制御盤２０から送られる調光制御信号に応じて照明器具であるＬＥＤの光出力の制御を行うものである。監視情報送信部６２は、制御部による制御に応じて照明器具であるＬＥＤに印加される電圧または流れる電流を検出し、検出結果を状態監視情報に係る信号として調光制御盤２０へ送信するものである。   The dimmers 60-1, 60-2,..., 60-n include a control unit 61 and a monitoring information transmission unit 62. The controller 61 controls the light output of the LED, which is a lighting fixture, in accordance with a dimming control signal sent from the dimming control panel 20. The monitoring information transmission unit 62 detects a voltage applied to the LED as a lighting fixture or a flowing current according to control by the control unit, and transmits the detection result to the dimming control panel 20 as a signal related to the state monitoring information. It is.

調光器６０（６０−１、６０−２、・・・、６０−ｎ）の構成を図８に示す。並列接続されたトライアックＴＡ１、ＴＡ２を有し、交流電源７０から電力供給により、コイル６５、トライアックＴＡ１、ＴＡ２、ＬＥＤ４０のループに電流が流れる。   The configuration of the dimmer 60 (60-1, 60-2,..., 60-n) is shown in FIG. Triacs TA1 and TA2 connected in parallel are provided, and current flows through the loop of the coil 65, the triacs TA1 and TA2, and the LED 40 by supplying power from the AC power supply 70.

制御回路６１は、マイクロコンピュータ及び送受信インタフェースなどの各種インタフェースにより構成され、ピックアップ６３から電流を得ている。制御回路６１には、ゲート回路６２が接続されている。ゲート回路６２は、交流電源７０を受けてゼロクロスを検出すると共に、制御回路６１からの制御に基づきトライアックＴＡ１、ＴＡ２の一方を用いて位相制御を行う。   The control circuit 61 includes various interfaces such as a microcomputer and a transmission / reception interface, and obtains a current from the pickup 63. A gate circuit 62 is connected to the control circuit 61. The gate circuit 62 receives the AC power supply 70 to detect zero crossing, and performs phase control using one of the triacs TA1 and TA2 based on the control from the control circuit 61.

トライアックＴＡ１は例えば数百ワット対応の大容量の第１のスイッチ素子であり、トライアックＴＡ２は数十ワット対応の小容量の第２のスイッチ素子である。制御回路６１は、ゲート回路６２を制御して調光率を０％から徐々に上げてゆき、起動時にトライアックＴＡ１をオンし、流れる電流をピックアップ６３から取り込んで検出し、その後にトライアックＴＡ１のゲート電流を停止し、ピックアップ６３から電流が得られるかを検出する。   For example, the triac TA1 is a first switch element having a large capacity corresponding to several hundred watts, and the triac TA2 is a second switch element having a small capacity corresponding to several tens of watts. The control circuit 61 controls the gate circuit 62 to gradually increase the dimming rate from 0%, turns on the triac TA1 at the time of activation, detects the flowing current from the pickup 63, and then detects the gate of the triac TA1. The current is stopped, and it is detected whether a current can be obtained from the pickup 63.

ゲート電流を停止し、ピックアップ６３から電流が得られる場合には、ＬＥＤ４０が保持電流以上の電流用の照明器具であり、その後にトライアックＴＡ１を選択して調光制御を行う。これとは逆に、ゲート電流を停止した場合に、ピックアップ６３から電流が得られなくなると、ＬＥＤ４０が保持電流以下の電流用の照明器具であり、その後にトライアックＴＡ２を選択して調光制御を行う。これにより、照明器具に不要な電流を流すことなく調光制御がなされ、確実にシステムの低消費電力化を図ることができる。   When the gate current is stopped and a current is obtained from the pickup 63, the LED 40 is a lighting fixture for a current higher than the holding current, and then the triac TA1 is selected to perform dimming control. On the other hand, when the gate current is stopped and the current cannot be obtained from the pickup 63, the LED 40 is a lighting fixture for current lower than the holding current, and then the triac TA2 is selected to perform dimming control. Do. As a result, dimming control is performed without causing unnecessary current to flow through the luminaire, and the power consumption of the system can be reliably reduced.

この制御回路６１も第１の実施例のマイクロコンピュータ１４と同様に、図５のテーブルＴＢ１、ＴＢ２の情報を用いてＬＥＤ４０の状態監視を行い、ピックアップ６３からの電流検出結果を状態監視情報（調光率を含む）に係る信号として調光制御盤２０へ返送する。これにより調光制御盤２０或いは、伝送路５０を介して接続されている上位装置は状態監視情報を受けて、照明器具であるＬＥＤ４０−１、４０−２、・・・、４０−ｎの状態を適切に把握することができる。   Similarly to the microcomputer 14 of the first embodiment, the control circuit 61 monitors the state of the LED 40 using the information in the tables TB1 and TB2 of FIG. It is sent back to the dimming control panel 20 as a signal relating to (including the light rate). As a result, the dimming control panel 20 or the host device connected via the transmission line 50 receives the state monitoring information, and the LEDs 40-1, 40-2,... Can be grasped appropriately.

本発明に係る調光システムの第１の実施例の構成図。The block diagram of the 1st Example of the light modulation system which concerns on this invention. 本発明に係る調光システムの第１の実施例により伝送される調光信号および供給される電力を説明するための図。The figure for demonstrating the dimming signal transmitted by the 1st Example of the dimming system which concerns on this invention, and the electric power supplied. 本発明に係る調光システムの第１の実施例における調光器の詳細構成図。The detailed block diagram of the light control device in the 1st Example of the light control system which concerns on this invention. 本発明に係る調光システムの第１の実施例において用いられるＰＷＭ信号を説明するための図。The figure for demonstrating the PWM signal used in the 1st Example of the light modulation system which concerns on this invention. 本発明に係る調光システムにおける調光器が備えるテーブルの内容を示す図。The figure which shows the content of the table with which the light control device in the light control system which concerns on this invention is provided. 本発明に係る調光システムの第１の実施例において用いられるＰＷＭ信号および返送電流の関係を説明するための図。The figure for demonstrating the relationship of the PWM signal and return current which are used in 1st Example of the light modulation system which concerns on this invention. 本発明に係る調光システムの第２の実施例の構成図。The block diagram of the 2nd Example of the light modulation system which concerns on this invention. 本発明に係る調光システムの第２の実施例における調光器の詳細構成図。The detailed block diagram of the light control device in 2nd Example of the light control system which concerns on this invention.

符号の説明Explanation of symbols

１０−１〜１０−ｎ 調光器
１１ 制御部
１２ 監視情報送信部
１４ マイクロコンピュータ
１５ 送信部
２０ 調光制御盤
２１ 調光制御部
２２ 電力供給部
３０ 伝送線
４０−１〜４０−ｎ ＬＥＤ
５０ 伝送路
６０−１〜６０−ｎ 調光器
６１ 制御回路
６２ ゲート回路
６３ ピックアップ
６５ コイル
７０ 交流電源 10-1 to 10-n dimmer 11 control unit 12 monitoring information transmission unit 14 microcomputer 15 transmission unit 20 dimming control panel 21 dimming control unit 22 power supply unit 30 transmission lines 40-1 to 40-n LED
50 Transmission path 60-1 to 60-n Dimmer 61 Control circuit 62 Gate circuit 63 Pickup 65 Coil 70 AC power supply

Claims (2)

伝送線を介して調光制御信号の送信及び状態監視情報に係る信号の受信を行う調光制御盤と；
伝送線に接続されると共に照明器具に接続され、調光制御盤から送られる調光制御信号に応じて照明器具の光出力の制御を行う制御部を有し、照明器具に電力を供給する調光器と；
を具備する調光制御システムであって、
調光制御盤は、伝送線を介して電力供給を行う電力供給部を備え、
調光器は、制御部による制御に応じて照明器具に印加される電圧または流れる電流を検出し、検出結果を状態監視情報に係る信号として調光制御盤へ送信する監視情報送信部を備え、
制御部は、
照明器具に供給する電力を位相制御するための第１のスイッチ素子と、第１のスイッチ素子に並列接続され、照明器具に供給する電力を位相制御し、第１のスイッチ素子より容量の小さい第２のスイッチ素子と、
起動時における第１のスイッチ素子動作の際に流れる電流を検出し、更に前記第１のスイッチ素子をオンさせる制御信号の停止後に流れる前記第１のスイッチ素子の保持電流を検出し、この検出結果に応じて第１のスイッチ素子または第２のスイッチ素子を選択して位相制御を実行する選択制御手段と
を具備することを特徴とする調光制御システム。 A dimming control panel for transmitting a dimming control signal and receiving a signal related to state monitoring information via a transmission line;
A control unit that is connected to the transmission line and connected to the luminaire and controls the light output of the luminaire according to the dimming control signal sent from the dimming control panel, and supplies power to the luminaire. With light;
A dimming control system comprising:
The dimming control panel includes a power supply unit that supplies power via a transmission line,
The dimmer includes a monitoring information transmission unit that detects a voltage applied to the lighting fixture or a flowing current according to control by the control unit, and transmits a detection result to the dimming control panel as a signal related to the state monitoring information.
The control unit
A first switch element for phase-controlling the power supplied to the lighting fixture and a first switch element connected in parallel to the first switch element for phase-controlling the power supplied to the lighting fixture and having a smaller capacity than the first switch element. Two switch elements;
The current flowing during the operation of the first switch element at the time of activation is detected, and the holding current of the first switch element flowing after the control signal for turning on the first switch element is detected, and the detection result And a selection control means for selecting the first switch element or the second switch element and executing phase control in accordance with the dimming control system. 照明器具は、照明器具の故障時に所定パターンの電流を流すことにより故障情報に係る信号を送信するものであり、調光率ゼロのときに電圧がゼロでない区間を設けて所定パターンの電流を流す制御を行うことを特徴とする請求項１に記載の調光制御システム。   The luminaire transmits a signal related to the failure information by flowing a current of a predetermined pattern when the luminaire fails, and when the dimming rate is zero, a section where the voltage is not zero is provided and a current of a predetermined pattern is passed. The dimming control system according to claim 1, wherein control is performed.
JP2007320128A 2007-12-11 2007-12-11 Dimming system Expired - Fee Related JP5286770B2 (en)

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