JP5513906B2 - Load control system - Google Patents

Load control system Download PDF

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JP5513906B2
JP5513906B2 JP2010011385A JP2010011385A JP5513906B2 JP 5513906 B2 JP5513906 B2 JP 5513906B2 JP 2010011385 A JP2010011385 A JP 2010011385A JP 2010011385 A JP2010011385 A JP 2010011385A JP 5513906 B2 JP5513906 B2 JP 5513906B2
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illuminance
wireless signal
sensor
unit
circuit unit
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JP2011151630A (en
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竜一 森
一郎 豊田
達也 阿部
梨恵 佐々木
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Panasonic Corp
Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

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Description

本発明は、センサ装置を用いた負荷制御システムに関するものである。 The present invention relates to a load control system with sensor equipment.

従来から、センサ装置を用いた負荷制御システムとして、例えば図５に示すように、赤外線または電波を媒体としてワイヤレス信号を送信するセンサ装置Ｗ’と、商用電源からなる交流電源ＡＣ’と白熱灯からなる照明負荷Ｌ’に電線を介して直列接続され、センサ装置Ｗ’から送信されるワイヤレス信号に基づいて照明負荷Ｌ’を点灯または消灯させるスイッチ装置Ｓ’とで構成されたものが提案されている（例えば、特許文献１参照）。   Conventionally, as a load control system using a sensor device, for example, as shown in FIG. 5, from a sensor device W ′ that transmits a wireless signal using infrared or radio waves as a medium, an AC power source AC ′ composed of a commercial power source, and an incandescent lamp And a switch device S ′ that is connected in series via an electric wire to the lighting load L ′ and that turns on or off the lighting load L ′ based on a wireless signal transmitted from the sensor device W ′ is proposed. (For example, refer to Patent Document 1).

センサ装置Ｗ’は、図６に示すように、検知エリア内における人の在否を検知する人感センサおよび周囲の照度を検知する照度センサを具備したセンサ部１と、センサ部１の人感センサおよび照度センサそれぞれの検知結果が入力されるマイクロコンピュータからなる制御回路部２’と、赤外線または電波を媒体としてワイヤレス信号を送信するワイヤレス信号送信部４’と、センサ部１、制御回路部２’、ワイヤレス信号送信部４’などへ電力を供給する電池からなる電源部５’と、センサ部１の人感センサによる人の在否にかかわらず照明負荷Ｌ’（図５参照）を強制的に点灯または消灯させるための押釦スイッチ（図示せず）を有するスイッチ回路部６とを備える。ここにおいて、制御回路部２’は、センサ部１の人感センサで人体が検知された時に、照明負荷Ｌ’を点灯させるための制御信号を作成する。なお、上記制御信号は、センサ部１の照度センサで検知される照度が予め設定される基準照度未満であるもの（以下、第１の制御信号と称する）と、センサ部１の照度センサで検知される照度が上記基準照度以上であるもの（以下、第２の制御信号と称する）との２種類がある。制御回路部２’で作成された上記第１の制御信号または上記第２の制御信号は増幅回路部３’で増幅された後に、ワイヤレス信号送信部４’に送出される。ワイヤレス信号送信部４’は、増幅回路部３’で増幅された上記第１の制御信号または上記第２の制御信号に基づいたワイヤレス信号をスイッチ装置Ｓ’（図５参照）に送信する。   As shown in FIG. 6, the sensor device W ′ includes a sensor unit 1 including a human sensor that detects the presence or absence of a person in a detection area and an illuminance sensor that detects ambient illuminance, and the human sensor of the sensor unit 1. A control circuit unit 2 ′ composed of a microcomputer to which detection results of the sensor and the illuminance sensor are input, a wireless signal transmission unit 4 ′ that transmits a wireless signal using infrared rays or radio waves as a medium, a sensor unit 1, and a control circuit unit 2 A power supply unit 5 ′ composed of a battery for supplying power to the wireless signal transmission unit 4 ′ and the like, and a lighting load L ′ (see FIG. 5) regardless of the presence / absence of a human by the human sensor of the sensor unit 1 And a switch circuit unit 6 having a push button switch (not shown) for turning on or off. Here, the control circuit unit 2 ′ creates a control signal for lighting the illumination load L ′ when a human body is detected by the human sensor of the sensor unit 1. The control signal is detected by the illuminance sensor of the sensor unit 1 when the illuminance detected by the illuminance sensor of the sensor unit 1 is less than a preset reference illuminance (hereinafter referred to as a first control signal). There are two types of illuminance that are higher than the reference illuminance (hereinafter referred to as second control signal). The first control signal or the second control signal generated by the control circuit unit 2 ′ is amplified by the amplifier circuit unit 3 ′ and then transmitted to the wireless signal transmission unit 4 ′. The wireless signal transmission unit 4 ′ transmits a wireless signal based on the first control signal or the second control signal amplified by the amplification circuit unit 3 ′ to the switch device S ′ (see FIG. 5).

スイッチ装置Ｓ’は、図７に示すように、センサ装置Ｗ’から送信される上記ワイヤレス信号を受信するワイヤレス信号受信部７’と、ワイヤレス信号受信部７’で受信した上記ワイヤレス信号に応じた受信信号を増幅する増幅回路部１１’と、交流電源ＡＣ’から照明負荷Ｌ’への給電路を開閉するスイッチング素子（例えば、トライアックなど）を有する負荷制御部８’と、増幅回路部１１’で増幅された上記受信信号に基づいて負荷制御部８’をスイッチング制御するマイクロコンピュータからなる制御回路部１４’とが設けられている。しかして、制御回路部１４’が負荷制御部８’のスイッチング素子をスイッチング制御することによって、照明負荷Ｌ’を点灯または消灯させる。また、スイッチ装置Ｓ’は照明負荷Ｌ’が消灯している時にスイッチ装置Ｓ’の位置を表示する発光素子（例えば、発光ダイオード）などを有する表示部１５と、照明負荷Ｌ’を強制的に点灯または消灯させるための操作ハンドルによって押操作されるタクトスイッチ（図示せず）を有するスイッチ入力部１３’と、負荷制御部８’、制御回路部１４’などに電力を供給する電源回路部１２’とを備えている。   As shown in FIG. 7, the switch device S ′ is configured to receive the wireless signal transmitted from the sensor device W ′ and the wireless signal receiving unit 7 ′ and the wireless signal received by the wireless signal receiving unit 7 ′. An amplifying circuit unit 11 ′ for amplifying a received signal, a load control unit 8 ′ having a switching element (for example, a triac) for opening and closing a power supply path from the AC power supply AC ′ to the illumination load L ′, and an amplifying circuit unit 11 ′ And a control circuit unit 14 ′ composed of a microcomputer for switching control of the load control unit 8 ′ based on the received signal amplified in step (b). Accordingly, the control circuit unit 14 ′ controls the switching element of the load control unit 8 ′ to turn on or off the illumination load L ′. Further, the switching device S ′ forcibly applies the lighting load L ′ to the display unit 15 having a light emitting element (for example, a light emitting diode) that displays the position of the switching device S ′ when the lighting load L ′ is turned off. A switch input unit 13 ′ having a tact switch (not shown) pushed by an operation handle for turning on or off, and a power supply circuit unit 12 for supplying power to a load control unit 8 ′, a control circuit unit 14 ′, etc. 'And features.

以下、上述の負荷制御システムの動作の一例を説明する。   Hereinafter, an example of the operation of the above-described load control system will be described.

照明負荷Ｌ’が消灯している状態において、センサ部１の照度センサで検知される照度が上記基準照度未満であり（周囲が暗く）且つセンサ部１の人感センサで人体が検知されると、センサ装置Ｗ’の制御回路部２’は上記第１の制御信号を作成して、ワイヤレス信号送信部４’から上記第１の制御信号に基づいたワイヤレス信号を送信する。このワイヤレス信号を受信したスイッチ装置Ｓ’の制御回路部１４’は、負荷制御部８’のスイッチング素子をオンさせることで照明負荷Ｌ’を点灯させる。同時に、制御回路部１４’はセンサ部１の人感センサによって人体が検知されなくなってから照明負荷Ｌ’を消灯させるまでの動作保持時間の計時を開始し、上記動作保持時間の計時が終了したら、負荷制御部８’のスイッチング素子をオフさせることで照明負荷Ｌ’を消灯させる。なお、上記動作保持時間は、制御回路部１４’に予め設定されている。
また、スイッチ装置Ｓ’の制御回路部１４’が上記動作保持時間を計時している時（この時、照明負荷Ｌ’は点灯しており）、センサ部１の照度センサで検知される照度は上記基準照度以上となり、センサ部１の人感センサで人体が検知されると、センサ装置Ｗ’の制御回路部２’は上記第２の制御信号を作成して、ワイヤレス信号送信部４’から上記第２の制御信号に基づいたワイヤレス信号を送信する。上記ワイヤレス信号を受信したスイッチ装置Ｓ’の制御回路部１４’は、負荷制御部８’のスイッチング素子がオンの状態（つまり、照明負荷Ｌ’が点灯している状態）であれば、上記動作保持時間を計時するタイマをリトリガする。但し、負荷制御部８’のスイッチング素子がオフの状態（つまり、照明負荷Ｌ’が消灯している状態）であれば、制御回路部１４’は、負荷制御部８’のスイッチング素子をスイッチング制御せずに照明負荷Ｌ’を消灯したままとする。 When the illumination load L ′ is turned off, the illuminance detected by the illuminance sensor of the sensor unit 1 is less than the reference illuminance (the surrounding is dark) and the human body is detected by the human sensor of the sensor unit 1 The control circuit unit 2 ′ of the sensor device W ′ creates the first control signal and transmits a wireless signal based on the first control signal from the wireless signal transmission unit 4 ′. The control circuit unit 14 ′ of the switch device S ′ that has received the wireless signal turns on the lighting load L ′ by turning on the switching element of the load control unit 8 ′. At the same time, the control circuit unit 14 ′ starts measuring the operation holding time until the illumination load L ′ is extinguished after the human body is no longer detected by the human sensor of the sensor unit 1, and when the operation holding time measurement ends. The lighting load L ′ is extinguished by turning off the switching element of the load controller 8 ′. The operation holding time is preset in the control circuit unit 14 ′ .
Also, illuminance 'control circuit 14' of the switch device S is detected by the time the illuminance sensor (in this case, the lighting load L 'is lit), the sensor unit 1 being clocked the operation holding time Is equal to or higher than the reference illuminance, and when a human body is detected by the human sensor of the sensor unit 1, the control circuit unit 2 ′ of the sensor device W ′ generates the second control signal, and the wireless signal transmission unit 4 ′ To transmit a wireless signal based on the second control signal. The control circuit unit 14 ′ of the switch device S ′ that has received the wireless signal operates as described above if the switching element of the load control unit 8 ′ is in the ON state (that is, the lighting load L ′ is lit). Re-trigger the timer that counts the hold time. However, if the switching element of the load control unit 8 ′ is in an off state (that is, the lighting load L ′ is turned off), the control circuit unit 14 ′ performs switching control on the switching element of the load control unit 8 ′. Without leaving the illumination load L ′ off.

特開２００６−２５３０９２号公報JP 2006-253092 A

ところで、このセンサ装置Ｗ’は電池からなる電源部５’を備えているため、センサ装置Ｗ’を交流電源ＡＣ’に接続する配線をなくすことができる。しかし、電源部５’は電池であるため、電池の寿命を考慮する必要がある。電源部５’の電池の寿命を延ばすためには、図８（ｃ）に示すように、ワイヤレス信号送信部４’から所定時間毎（図示例では、５秒毎）に上記ワイヤレス信号を送信する方法が考えられる。   By the way, since the sensor device W 'includes the power supply unit 5' made of a battery, the wiring for connecting the sensor device W 'to the AC power source AC' can be eliminated. However, since the power supply unit 5 'is a battery, it is necessary to consider the life of the battery. In order to extend the battery life of the power supply unit 5 ′, as shown in FIG. 8C, the wireless signal is transmitted from the wireless signal transmission unit 4 ′ every predetermined time (in the illustrated example, every 5 seconds). A method is conceivable.

例えば、照明負荷Ｌ’が消灯している場合、センサ部１の照度センサで検知される照度が上記基準照度未満であり（周囲が暗く）且つセンサ部１の人感センサで人体が検知されると（図８（ａ）において、ｔ０の時点）、制御回路部２’は、ワイヤレス信号送信部４’から上記第１の制御信号に基づいたワイヤレス信号を送信し、且つ上記所定時間であるタイマ時間（図８の例では、５秒）を計時する検知タイマ（図示せず）の計時を開始させる。なお、上記検知タイマは、例えばセンサ装置Ｗ’の制御回路部２’に設けられている。上記第１の制御信号に基づいたワイヤレス信号を受信したスイッチ装置Ｓ’の制御回路部１４’は、負荷制御部８’のスイッチング素子をオンさせることで照明負荷Ｌ’を点灯させ、且つ上記動作保持時間の計時を開始する。   For example, when the illumination load L ′ is turned off, the illuminance detected by the illuminance sensor of the sensor unit 1 is less than the reference illuminance (the surrounding is dark) and the human body is detected by the human sensor of the sensor unit 1. (At time t0 in FIG. 8A), the control circuit unit 2 ′ transmits a wireless signal based on the first control signal from the wireless signal transmission unit 4 ′ and has a timer that is the predetermined time. The timing of a detection timer (not shown) that measures time (5 seconds in the example of FIG. 8) is started. The detection timer is provided in the control circuit unit 2 'of the sensor device W', for example. The control circuit unit 14 ′ of the switch device S ′ that has received the wireless signal based on the first control signal turns on the lighting load L ′ by turning on the switching element of the load control unit 8 ′, and performs the above operation. Start measuring the holding time.

制御回路部２’は、上記検知タイマの上記タイマ時間の計時が終了したら、センサ部１の人感センサおよび照度センサそれぞれの検知結果を取得する。センサ部１の照度センサで検知される照度が上記基準照度以上であり（周囲が明るく）且つ人感センサで人体が検知されると（図８（ａ）において、ｔ１の時点）、制御回路部２’は、ワイヤレス信号送信部４’から上記第２の制御信号に基づいたワイヤレス信号を送信し、且つ上記検知タイマの上記タイマ時間の計時を開始させる。上記第２の制御信号に基づいたワイヤレス信号を受信したスイッチ装置Ｓ’の制御回路部１４’は、負荷制御部８’のスイッチング素子をスイッチング制御せずに照明負荷Ｌ’を点灯したままとし、且つ上記動作保持時間の計時をリトリガする。以降、制御回路部２’は上記検知タイマの上記タイマ時間の計時が終了する度に、センサ部１の人感センサおよび照度センサそれぞれの検知結果を取得し、上述の動作を繰り返す。なお、図８の右下がりの線は計時時間を模式的に表し、右下がりの線における高さの高低が残り時間の長短を表している。   The control circuit unit 2 ′ acquires the detection results of the human sensor and the illuminance sensor of the sensor unit 1 when the timer time of the detection timer is finished. When the illuminance detected by the illuminance sensor of the sensor unit 1 is equal to or higher than the reference illuminance (the surrounding is bright) and a human body is detected by the human sensor (at time t1 in FIG. 8A), the control circuit unit 2 ′ transmits a wireless signal based on the second control signal from the wireless signal transmission unit 4 ′ and starts measuring the timer time of the detection timer. The control circuit unit 14 ′ of the switch device S ′ that has received the wireless signal based on the second control signal keeps the lighting load L ′ on without switching control of the switching element of the load control unit 8 ′. In addition, the timing of the operation holding time is retriggered. Thereafter, the control circuit unit 2 'acquires the detection results of the human sensor and the illuminance sensor of the sensor unit 1 each time the timer time of the detection timer ends, and repeats the above-described operation. Note that the lower right line in FIG. 8 schematically represents the time keeping time, and the height of the lower right line represents the length of the remaining time.

ここで、上記検知タイマが上記タイマ時間を計時している途中（例えば、上記検知タイマにより計時された時間が３秒の時点）で、センサ装置Ｗ’の上記押釦スイッチで照明負荷Ｌ’を強制的に消灯させた場合（図８（ｂ）において、ｔ３の時点）、センサ部１の照度センサで検知される照度が上記基準照度未満となったとする（周囲が暗くなったとする）。ここにおいて、センサ部１の人感センサで人体が検知されても、上記検知タイマは上記タイマ時間を計時しているので、スイッチ装置Ｓ’が照明負荷Ｌ’を点灯させるまでに時間がかかってしまう（図８（ｂ）において、Ｔ５の期間）。   Here, during the time when the detection timer is measuring the timer time (for example, when the time measured by the detection timer is 3 seconds), the illumination load L ′ is forced by the pushbutton switch of the sensor device W ′. When the light is turned off automatically (at time t3 in FIG. 8B), it is assumed that the illuminance detected by the illuminance sensor of the sensor unit 1 is less than the reference illuminance (assuming that the surrounding has become dark). Here, even if a human body is detected by the human sensor of the sensor unit 1, since the detection timer measures the timer time, it takes time for the switch device S ′ to turn on the illumination load L ′. (T5 period in FIG. 8B).

本発明は上記の事由に鑑みて為されたものであり、その目的は、電池の寿命を延ばしながらも、周囲の照度が予め設定された基準照度以上の照度から上記基準照度未満の照度に変化すると直ちにワイヤレス信号を送信するセンサ装置を用いた負荷制御システムを提供することにある。 The present invention has been made in view of the above reasons, and its purpose is to change the illuminance of the surroundings from the illuminance above the preset reference illuminance to the illuminance below the reference illuminance while extending the life of the battery. Then immediately to provide a load control system with sensor equipment to transmit a wireless signal.

本願の別の発明は、検知エリア内における人の在否を検知する人感センサと、周囲の照度を検知する照度センサと、人感センサおよび照度センサそれぞれの検知情報を含むワイヤレス信号を送信するワイヤレス信号送信部と、ワイヤレス信号送信部から当該ワイヤレス信号を所定時間毎に送信させる制御回路部と、人感センサ、照度センサ、ワイヤレス信号送信部および制御回路部に電力を供給する電池とを備え、制御回路部は照度センサの検知情報である照度が予め設定された基準照度以上の照度から当該基準照度未満の照度に変わった時には、上記所定時間に関係なく、直ちにワイヤレス信号送信部から当該ワイヤレス信号を送信することを特徴とするセンサ装置である。 Another invention of the present application transmits a human sensor that detects the presence or absence of a person in a detection area, an illuminance sensor that detects ambient illuminance, and a wireless signal that includes detection information of the human sensor and the illuminance sensor. A wireless signal transmission unit; a control circuit unit that transmits the wireless signal from the wireless signal transmission unit every predetermined time; and a battery that supplies power to the human sensor, the illuminance sensor, the wireless signal transmission unit, and the control circuit unit. When the illuminance, which is the detection information of the illuminance sensor, changes from the illuminance above the preset reference illuminance to the illuminance below the reference illuminance, the control circuit unit immediately transmits the wireless signal from the wireless signal transmission unit regardless of the predetermined time. a sensor device you and transmits a signal.

この発明によれば、上記所定時間毎にワイヤレス信号送信部から上記ワイヤレス信号を送信し、照度センサの検知情報である照度が上記基準照度以上の照度から上記基準照度未満の照度に変わった時には、上記所定時間に関係なく、直ちにワイヤレス信号送信部から上記ワイヤレス信号を送信することによって、電池の寿命を延ばしながらも、周囲の照度が上記基準照度以上の照度から上記基準照度未満の照度に変化すると、直ちに上記ワイヤレス信号を送信することができる。   According to this invention, when the illuminance that is detection information of the illuminance sensor is changed from illuminance that is equal to or higher than the reference illuminance to illuminance that is less than the reference illuminance, Regardless of the predetermined time, by immediately transmitting the wireless signal from the wireless signal transmission unit, the ambient illuminance changes from the illuminance above the reference illuminance to the illuminance below the reference illuminance while extending the battery life. The wireless signal can be transmitted immediately.

請求項１の発明は、検知エリア内における人の在否を検知する人感センサと、周囲の照度を検知する照度センサと、前記人感センサおよび前記照度センサそれぞれの検知情報を含むワイヤレス信号を送信するワイヤレス信号送信部と、前記ワイヤレス信号送信部から当該ワイヤレス信号を所定時間毎に送信させる第１の制御回路部と、前記人感センサ、前記照度センサ、前記ワイヤレス信号送信部および前記第１の制御回路部に電力を供給する電池とを備え、前記第１の制御回路部は、前記所定時間毎に送信される前記ワイヤレス信号が、前記照度センサの検知情報である照度が前記基準照度未満であり且つ前記人感センサの検知情報が人体有りの時の第１の制御信号に基づいた第１ワイヤレス信号と、前記照度センサの検知情報である照度が前記基準照度以上であり且つ前記人感センサの検知情報が人体有りの時の第２の制御信号に基づいた第２ワイヤレス信号とを含んでおり、所定時間毎に送信される前記第１ワイヤレス信号または前記第２ワイヤレス信号の直後に、前記照度センサの前記検知情報である照度が予め設定された基準照度以上の照度から当該基準照度未満の照度に変わった時の第３の制御信号に基づいた第３のワイヤレス信号を、前記所定時間に関係なく、直ちに前記ワイヤレス信号送信部から送信するセンサ装置と、前記センサ装置からの前記ワイヤレス信号に基づいて照明負荷を点灯または消灯させるスイッチ装置と、を備え、前記スイッチ装置は、前記センサ装置から送信される前記ワイヤレス信号を受信するワイヤレス信号受信部と、前記ワイヤレス信号受信部で受信された前記ワイヤレス信号に応じた受信信号を増幅する増幅回路部と、交流電源から前記照明負荷への給電路を開閉するスイッチング素子を有する負荷制御部と、前記増幅回路部で増幅された前記受信信号に基づいて前記スイッチング素子をスイッチング制御する第２の制御回路部と、前記ワイヤレス信号受信部、前記増幅回路部、前記負荷制御部および前記第２の制御回路部に電力を供給する電源回路部と、前記照明負荷を強制的に点灯または消灯させるための押釦スイッチを有するスイッチ入力部とを有し、前記スイッチ装置は、前記ワイヤレス信号に含まれる前記人感センサの前記検知情報が人体有りで且つ前記照度センサの前記検知情報である照度が前記基準照度未満の照度である場合に、前記照明負荷を点灯させることを特徴とする。 The invention according to claim 1 is a human sensor that detects the presence or absence of a person in a detection area, an illuminance sensor that detects ambient illuminance, and a wireless signal that includes detection information of each of the human sensor and the illuminance sensor. A wireless signal transmitting unit to transmit, a first control circuit unit for transmitting the wireless signal from the wireless signal transmitting unit every predetermined time, the human sensor, the illuminance sensor, the wireless signal transmitting unit, and the first A battery for supplying power to the control circuit unit, wherein the first control circuit unit has an illuminance whose detection signal of the illuminance sensor is less than the reference illuminance. And the first wireless signal based on the first control signal when the detection information of the human sensor is present and the illuminance which is the detection information of the illuminance sensor A second wireless signal based on a second control signal that is equal to or higher than the reference illuminance and detected by the human sensor when a human body is present, and is transmitted every predetermined time. or after the second wireless signal, based on the previous SL third control signal when said a detection information illuminance changes from a preset reference illuminance or illuminance to the illuminance of less than the reference illuminance of the illuminance sensor a third wireless signal of, irrespective of the predetermined time, thereby immediately said wirelessly signal transmitter or we transmit to Rousset capacitors device is on or off the lighting load based on the wireless signal from the sensor device A switch device, the switch device receiving a wireless signal transmitted from the sensor device, and the wireless signal. An amplification circuit unit that amplifies a reception signal corresponding to the wireless signal received by the reception unit, a load control unit that has a switching element that opens and closes a power supply path from an AC power supply to the illumination load, and amplification by the amplification circuit unit Power is supplied to the second control circuit unit that controls the switching element based on the received signal, and the wireless signal reception unit, the amplification circuit unit, the load control unit, and the second control circuit unit And a switch input unit having a pushbutton switch for forcibly turning on or off the illumination load, and the switch device includes the detection information of the human sensor included in the wireless signal. The illumination load is turned on when the human body is present and the illuminance that is the detection information of the illuminance sensor is less than the reference illuminance. And features.

この発明によれば、上記所定時間毎にワイヤレス信号送信部から上記ワイヤレス信号を送信し、照度センサの検知情報である照度が上記基準照度以上の照度から上記基準照度未満の照度に変わった時には、上記所定時間に関係なく、直ちにワイヤレス信号送信部から上記ワイヤレス信号を送信することによって、電池の寿命を延ばしながらも、周囲の照度が上記基準照度以上の照度から上記基準照度未満の照度に変化すると、直ちに上記ワイヤレス信号を送信することができる。また、この発明によれば、スイッチ装置は前記ワイヤレス信号に含まれる前記人感センサの検知情報が人体有りで且つ前記照度センサの検知情報である照度が前記基準照度未満の照度である場合に、照明負荷を素早く点灯させることができる。 According to this invention, when the illuminance that is detection information of the illuminance sensor is changed from illuminance that is equal to or higher than the reference illuminance to illuminance that is less than the reference illuminance, Regardless of the predetermined time, by immediately transmitting the wireless signal from the wireless signal transmission unit, the ambient illuminance changes from the illuminance above the reference illuminance to the illuminance below the reference illuminance while extending the battery life. The wireless signal can be transmitted immediately. Further, according to the present invention, when the switch device is the human illuminance detection information illuminance is and detection information of the illuminance sensor is there a human body than the reference illuminance sensor included in the wireless signal The lighting load can be turned on quickly.

請求項１の発明では、上記所定時間毎に上記ワイヤレス信号を送信し、上記照度センサの検知情報である照度が上記基準照度以上の照度から上記基準照度未満の照度に変わった時には、上記所定時間に関係なく、直ちに上記ワイヤレス信号を送信することで、電池の寿命を延ばしながらも、周囲の照度が上記基準照度以上の照度から上記基準照度未満の照度に変化すると、直ちに上記ワイヤレス信号を送信することができるという効果がある。   In the first aspect of the invention, the wireless signal is transmitted every predetermined time, and when the illuminance, which is detection information of the illuminance sensor, changes from illuminance greater than or equal to the reference illuminance to illuminance less than the reference illuminance, the predetermined time Regardless of whether the ambient illuminance changes from the illuminance above the reference illuminance to the illuminance below the reference illuminance, the wireless signal is immediately transmitted while extending the battery life by transmitting the wireless signal immediately. There is an effect that can be.

また、請求項１の発明では、スイッチ装置は前記人感センサの検知情報が人体有りで且つ前記照度センサの検知情報である照度が前記基準照度未満の照度である場合に、照明負荷を素早く点灯させることができるという効果がある。 Further, in the invention billed to claim 1, when the switch device is a illuminance of less than illuminance is sensed information the reference illumination of and the illuminance sensor is there detection information of the human sensor is a human body, quickly lighting load There is an effect that it can be lit.

実施形態のセンサ装置を示すブロック図である。It is a block diagram which shows the sensor apparatus of embodiment. 同上の負荷制御システムのシステム構成図である。It is a system block diagram of a load control system same as the above. 同上のスイッチ装置を示すブロック図である。It is a block diagram which shows a switch apparatus same as the above. 同上の負荷制御システムの動作説明図である。It is operation | movement explanatory drawing of a load control system same as the above. 従来例を示す負荷制御システムのシステム構成図である。It is a system block diagram of the load control system which shows a prior art example. 同上のセンサ装置を示すブロック図である。It is a block diagram which shows a sensor apparatus same as the above. 同上のスイッチ装置を示すブロック図である。It is a block diagram which shows a switch apparatus same as the above. 同上の負荷制御システムの動作説明図である。It is operation | movement explanatory drawing of a load control system same as the above.

本実施形態のセンサ装置Ｗは、図１に示すように、検知エリア内における人の在否を検知する人感センサ９と、周囲の照度を検知する照度センサ１０と、人感センサ９および照度センサ１０それぞれの検知結果を検知情報として取得し、人感センサ９および照度センサ１０それぞれの検知情報を含む制御信号を作成するマイクロコンピュータからなる制御回路部２と、制御回路部２から送出される上記制御信号を増幅する増幅回路部３と、増幅回路部３で増幅された上記制御信号に基づいて、人感センサ９および照度センサ１０それぞれの検知情報を含むワイヤレス信号を電波を媒体として送信するワイヤレス信号送信部４と、人感センサ９、照度センサ１０、制御回路部２、増幅回路部３およびワイヤレス信号送信部４に電力を供給する電池５とを備え、制御回路部２は所定時間毎（例えば、５秒毎）にワイヤレス信号送信部４から上記ワイヤレス信号を送信する。また、制御回路部２には、上記所定時間であるタイマ時間を計時する検知タイマ（図示せず）が設けられている。ここにおいて、制御回路部２は、人感センサ９で人体が検知された時に、照明負荷Ｌを点灯させるための上記制御信号を作成し、照度センサ１０で検知される照度が予め設定される基準照度未満であるもの（以下、第１の制御信号と称する）と、照度センサ１０で検知される照度が上記基準照度以上であるもの（以下、第２の制御信号と称する）との２種類がある。なお、人感センサ９は焦電素子を用いたものであり、照度センサ１０は光電変換素子（例えば、フォトダイオードなど）を用いたものである。また、ワイヤレス信号送信部４は媒体として電波を用いているが、例えば赤外線などであってもよく、制御回路部２はマイクロコンピュータを用いているが、例えばディスクリート部品で回路を構成してもよい。   As shown in FIG. 1, the sensor device W of the present embodiment includes a human sensor 9 that detects the presence or absence of a person in a detection area, an illuminance sensor 10 that detects ambient illuminance, the human sensor 9, and illuminance. A detection result of each of the sensors 10 is acquired as detection information, and a control circuit unit 2 including a microcomputer that creates a control signal including detection information of each of the human sensor 9 and the illuminance sensor 10 is sent from the control circuit unit 2. An amplification circuit unit 3 for amplifying the control signal, and a wireless signal including detection information of the human sensor 9 and the illuminance sensor 10 based on the control signal amplified by the amplification circuit unit 3 is transmitted using radio waves as a medium. Electric power for supplying power to the wireless signal transmission unit 4, the human sensor 9, the illuminance sensor 10, the control circuit unit 2, the amplification circuit unit 3, and the wireless signal transmission unit 4. A 5, the control circuit section 2 every predetermined time (e.g., every 5 seconds) and transmits the wireless signal from the wireless signal transmission unit 4. Further, the control circuit unit 2 is provided with a detection timer (not shown) for measuring the timer time which is the predetermined time. Here, the control circuit unit 2 creates the control signal for turning on the illumination load L when a human body is detected by the human sensor 9, and a reference for presetting the illuminance detected by the illuminance sensor 10. There are two types, one that is less than the illuminance (hereinafter referred to as the first control signal) and one that the illuminance detected by the illuminance sensor 10 is greater than or equal to the reference illuminance (hereinafter referred to as the second control signal). is there. The human sensor 9 uses a pyroelectric element, and the illuminance sensor 10 uses a photoelectric conversion element (for example, a photodiode). The wireless signal transmission unit 4 uses radio waves as a medium, but may be, for example, infrared rays, and the control circuit unit 2 uses a microcomputer. For example, the circuit may be configured with discrete components. .

ここで、制御回路部２は、照度センサ１０の検知情報である照度が予め設定された基準照度以上の照度から上記基準照度未満の照度に変わった時に、上記所定時間に関係なく、直ちにワイヤレス信号送信部４から上記ワイヤレス信号を送信する。   Here, when the illuminance, which is detection information of the illuminance sensor 10, changes from the illuminance greater than or equal to the preset reference illuminance to the illuminance less than the reference illuminance, the control circuit unit 2 immediately transmits a wireless signal regardless of the predetermined time. The wireless signal is transmitted from the transmitter 4.

したがって、制御回路部２は、上記所定時間毎にワイヤレス信号送信部４から上記ワイヤレス信号を送信し、照度センサ１０の検知情報である照度が上記基準照度以上の照度から上記基準照度未満の照度に変わった時には、上記所定時間に関係なく、直ちにワイヤレス信号送信部４から上記ワイヤレス信号を送信することによって、電池５の寿命を延ばしながらも、周囲の照度が上記基準照度以上の照度から上記基準照度未満の照度に変化すると、直ちに上記ワイヤレス信号を送信することができる。   Therefore, the control circuit unit 2 transmits the wireless signal from the wireless signal transmission unit 4 every predetermined time, and the illuminance, which is detection information of the illuminance sensor 10, is changed from the illuminance that is equal to or higher than the reference illuminance to the illuminance that is less than the reference illuminance. When the time has changed, the wireless signal is immediately transmitted from the wireless signal transmission unit 4 regardless of the predetermined time, thereby extending the life of the battery 5 while the ambient illuminance exceeds the reference illuminance above the reference illuminance. When the illuminance changes below, the wireless signal can be transmitted immediately.

以上説明した本実施形態のセンサ装置Ｗは、上記所定時間毎にワイヤレス信号送信部４から上記ワイヤレス信号を送信し、照度センサ１０の検知情報である照度が上記基準照度以上の照度から上記基準照度未満の照度に変わった時には、上記所定時間に関係なく、直ちにワイヤレス信号送信部４から上記ワイヤレス信号を送信することによって、電池５の寿命を延ばしながらも、周囲の照度が上記基準照度以上の照度から上記基準照度未満の照度に変化すると、直ちに上記ワイヤレス信号を送信することができる。   The sensor device W of the present embodiment described above transmits the wireless signal from the wireless signal transmission unit 4 every predetermined time, and the illuminance that is detection information of the illuminance sensor 10 is from the illuminance that is equal to or higher than the reference illuminance to the reference illuminance. When the illuminance changes to less than the predetermined illuminance, the wireless signal is immediately transmitted from the wireless signal transmission unit 4 regardless of the predetermined time, thereby extending the life of the battery 5 while the ambient illuminance is not less than the reference illuminance. If the illuminance changes from below to the illuminance lower than the reference illuminance, the wireless signal can be transmitted immediately.

本実施形態の負荷制御システムは、図２に示すように、電波を媒体として上記ワイヤレス信号を送信する上述のセンサ装置Ｗと、商用電源からなる交流電源ＡＣと照明負荷Ｌに電線を介して直列接続され、センサ装置Ｗから送信される上記ワイヤレス信号に基づいて照明負荷Ｌを点灯または消灯させるスイッチ装置Ｓとで構成されている。なお、センサ装置Ｗは建物内の天井などに設置され、スイッチ装置Ｓは壁面などに埋め込み配置される。   As shown in FIG. 2, the load control system according to the present embodiment is connected in series to the sensor device W that transmits the wireless signal using radio waves as a medium, an AC power source AC including a commercial power source, and a lighting load L via electric wires. The switch device S is configured to be connected and to turn on or off the illumination load L based on the wireless signal transmitted from the sensor device W. The sensor device W is installed on a ceiling or the like in a building, and the switch device S is embedded in a wall surface or the like.

スイッチ装置Ｓは、図３に示すように、センサ装置Ｗから送信される上記ワイヤレス信号を受信するワイヤレス信号受信部７と、ワイヤレス信号受信部７で受信された上記ワイヤレス信号に応じた受信信号を増幅する増幅回路部１１と、交流電源ＡＣから照明負荷Ｌへの給電路を開閉するスイッチング素子（例えば、トライアックなど）を有する負荷制御部８と、増幅回路部１１で増幅された上記受信信号に基づいて負荷制御部８のスイッチング素子をスイッチング制御するマイクロコンピュータからなる制御回路部１４と、ワイヤレス信号受信部７、増幅回路部１１、負荷制御部８および制御回路部１４に電力を供給する電源回路部１２と、照明負荷Ｌを強制的に点灯または消灯させるための押釦スイッチ（図示せず）を有するスイッチ入力部１３とを備え、負荷制御部８は交流電源ＡＣと照明負荷Ｌに電線を介して直列接続されている。また、制御回路部１４には、人感センサ９によって人体が検知されなくなってから照明負荷Ｌを消灯させるまでの動作保持時間を計時する保持タイマ（図示せず）が設けられている。なお、上記動作保持時間は、制御回路部１４に予め設定されている。また、制御回路部１４はマイクロコンピュータを用いているが、例えばディスクリート部品で回路を構成してもよい。 As shown in FIG. 3, the switch device S receives a wireless signal receiving unit 7 that receives the wireless signal transmitted from the sensor device W, and a reception signal corresponding to the wireless signal received by the wireless signal receiving unit 7. An amplification circuit unit 11 that amplifies, a load control unit 8 that has a switching element (for example, a triac) that opens and closes a power supply path from the AC power source AC to the illumination load L, and the received signal amplified by the amplification circuit unit 11 , A control circuit unit 14 composed of a microcomputer for switching control of the switching element of the load control unit 8, and a power supply for supplying power to the wireless signal receiving unit 7, the amplifier circuit unit 11, the load control unit 8 and the control circuit unit 14. Switch-on having a circuit part 12 and a pushbutton switch (not shown) for forcibly turning on or off the illumination load L The load control unit 8 is connected in series to the AC power source AC and the illumination load L via electric wires. Further, the control circuit unit 14 is provided with a holding timer (not shown) for measuring an operation holding time from when the human sensor is no longer detected by the human sensor 9 until the illumination load L is turned off. The operation holding time is preset in the control circuit unit 14. Moreover, although the control circuit unit 14 uses a microcomputer, the circuit may be constituted by, for example, discrete components.

ここで、制御回路部１４は、増幅回路部１１で増幅された上記受信信号に含まれる人感センサ９の検知情報が人体有りで且つ照度センサ１０の検知情報である照度が上記基準照度未満の照度である（周囲が暗い）時、負荷制御部８のスイッチング素子をオンさせることで照明負荷Ｌを点灯させる。   Here, the control circuit unit 14 has the detection information of the human sensor 9 included in the reception signal amplified by the amplification circuit unit 11 having a human body and the illuminance which is the detection information of the illuminance sensor 10 is less than the reference illuminance. When it is illuminance (the surroundings are dark), the lighting load L is turned on by turning on the switching element of the load control unit 8.

以下、本実施形態の負荷制御システムの動作を、図４を参照しながら説明する。   Hereinafter, the operation of the load control system of the present embodiment will be described with reference to FIG.

例えば、照明負荷Ｌが消灯している場合、照度センサ１０の検知情報である照度が上記基準照度未満であり（周囲が暗く）且つ人感センサ９の検知情報が人体有りの時（図４（ａ）において、ｔ０の時点）、センサ装置Ｗの制御回路部２は、ワイヤレス信号送信部４から上記第１の制御信号に基づいたワイヤレス信号を送信し、且つ上記検知タイマの上記タイマ時間（図４の例では、５秒）の計時を開始させる。上記ワイヤレス信号を受信したスイッチ装置Ｓの制御回路部１４は、負荷制御部８のスイッチング素子をオンさせることで照明負荷Ｌを点灯させ、且つ上記保持タイマの上記動作保持時間の計時を開始させる。   For example, when the illumination load L is turned off, the illuminance that is the detection information of the illuminance sensor 10 is less than the reference illuminance (the surrounding is dark), and the detection information of the human sensor 9 is a human body (FIG. 4 ( a), at time t0), the control circuit unit 2 of the sensor device W transmits a wireless signal based on the first control signal from the wireless signal transmission unit 4, and the timer time of the detection timer (FIG. In the example of 4, a time measurement of 5 seconds) is started. The control circuit unit 14 of the switch device S that has received the wireless signal turns on the lighting load L by turning on the switching element of the load control unit 8 and starts measuring the operation holding time of the holding timer.

上記検知タイマの上記タイマ時間の計時が終了したら、制御回路部２は人感センサ９および照度センサ１０それぞれの検知情報を取得する。照度センサ１０の検知情報である照度が上記基準照度以上であり（周囲が明るく）且つ人感センサ９の検知情報が人体有りの時（図４（ａ）において、ｔ１の時点）、制御回路部２は、ワイヤレス信号送信部４から上記第２の制御信号に基づいたワイヤレス信号を送信し、且つ上記検知タイマの上記タイマ時間の計時を開始させる。上記ワイヤレス信号を受信したスイッチ装置Ｓの制御回路部１４は、負荷制御部８のスイッチング素子をオンさせ続けることで照明負荷Ｌを点灯したままとし、且つ上記保持タイマの上記動作保持時間の計時をリトリガさせる。以降、制御回路部２は、上記検知タイマの上記タイマ時間の計時が終了する度に、人感センサ９および照度センサ１０それぞれの検知情報を取得し、上述の動作を繰り返す。なお、図４の右下がりの線は計時時間を模式的に表し、右下がりの線における高さの高低が残り時間の長短を表している。   When the measurement of the timer time of the detection timer is completed, the control circuit unit 2 acquires detection information of the human sensor 9 and the illuminance sensor 10. When the illuminance as detection information of the illuminance sensor 10 is equal to or higher than the reference illuminance (the surrounding is bright) and the detection information of the human sensor 9 is present (at time t1 in FIG. 4A), the control circuit unit 2 transmits a wireless signal based on the second control signal from the wireless signal transmission unit 4 and starts measuring the timer time of the detection timer. The control circuit unit 14 of the switch device S that has received the wireless signal keeps the lighting load L lit by continuing to turn on the switching element of the load control unit 8 and counts the operation holding time of the holding timer. Retrigger. Thereafter, the control circuit unit 2 acquires the detection information of the human sensor 9 and the illuminance sensor 10 each time the timer time of the detection timer ends, and repeats the above-described operation. In addition, the lower right line in FIG. 4 schematically represents the timekeeping time, and the height of the lower right line represents the length of the remaining time.

ここで、上記検知タイマが上記タイマ時間を計時している途中（例えば、上記検知タイマにより計時された時間が３秒の時点）で、例えばスイッチ装置Ｓの上記押釦スイッチで照明負荷Ｌを強制的に消灯させた場合（図４（ｂ）において、ｔ３の時点）、照度センサ１０の検知情報である照度が上記基準照度以上の照度から上記基準照度未満の照度に変化するので、制御回路部２は上記所定時間に関係なく、直ちにワイヤレス信号送信部４から上記第１の制御信号に基づいたワイヤレス信号を送信する。上記ワイヤレス信号を受信したスイッチ装置Ｓの制御回路部１４は、負荷制御部８のスイッチング素子をオンさせることで照明負荷Ｌを点灯させ、且つ上記保持タイマの上記動作保持時間の計時を開始させ、上記動作保持時間の計時が終了したら、負荷制御部８のスイッチング素子をオフさせることで照明負荷Ｌを消灯させる。   Here, while the detection timer is measuring the timer time (for example, when the time measured by the detection timer is 3 seconds), for example, the illumination load L is forcibly set by the push button switch of the switch device S. Since the illuminance, which is detection information of the illuminance sensor 10, changes from the illuminance greater than or equal to the reference illuminance to the illuminance less than the reference illuminance, the control circuit unit 2 Regardless of the predetermined time, the wireless signal transmitter 4 immediately transmits a wireless signal based on the first control signal. The control circuit unit 14 of the switch device S that has received the wireless signal turns on the lighting load L by turning on the switching element of the load control unit 8, and starts measuring the operation holding time of the holding timer, When the timing of the operation holding time is completed, the lighting load L is turned off by turning off the switching element of the load control unit 8.

以上説明した本実施形態の負荷制御システムは、スイッチ装置Ｓは上記ワイヤレス信号に含まれる人感センサ９の検知情報が人体有りで且つ照度センサ１０の検知情報である照度が上記基準照度未満の照度である場合に、照明負荷Ｌを素早く点灯させることができる。   In the load control system of the present embodiment described above, the switch device S has an illuminance in which the detection information of the human sensor 9 included in the wireless signal is present and the illuminance which is the detection information of the illuminance sensor 10 is less than the reference illuminance. In this case, the illumination load L can be quickly turned on.

２ 制御回路部
４ ワイヤレス信号送信部
５ 電池
９ 人感センサ
１０ 照度センサ
Ｌ 照明負荷
Ｓ スイッチ装置
Ｗ センサ装置 2 Control circuit unit 4 Wireless signal transmission unit 5 Battery 9 Human sensor 10 Illuminance sensor L Lighting load S Switch device W Sensor device

Claims (1)

検知エリア内における人の在否を検知する人感センサと、周囲の照度を検知する照度センサと、前記人感センサおよび前記照度センサそれぞれの検知情報を含むワイヤレス信号を送信するワイヤレス信号送信部と、前記ワイヤレス信号送信部から当該ワイヤレス信号を所定時間毎に送信させる第１の制御回路部と、前記人感センサ、前記照度センサ、前記ワイヤレス信号送信部および前記第１の制御回路部に電力を供給する電池とを備え、前記第１の制御回路部は、前記所定時間毎に送信される前記ワイヤレス信号が、前記照度センサの検知情報である照度が前記基準照度未満であり且つ前記人感センサの検知情報が人体有りの時の第１の制御信号に基づいた第１ワイヤレス信号と、前記照度センサの検知情報である照度が前記基準照度以上であり且つ前記人感センサの検知情報が人体有りの時の第２の制御信号に基づいた第２ワイヤレス信号とを含んでおり、所定時間毎に送信される前記第１ワイヤレス信号または前記第２ワイヤレス信号の直後に、前記照度センサの前記検知情報である照度が予め設定された基準照度以上の照度から当該基準照度未満の照度に変わった時の第３の制御信号に基づいた第３のワイヤレス信号を、前記所定時間に関係なく、直ちに前記ワイヤレス信号送信部から送信するセンサ装置と、
前記センサ装置からの前記ワイヤレス信号に基づいて照明負荷を点灯または消灯させるスイッチ装置と、を備え、
前記スイッチ装置は、前記センサ装置から送信される前記ワイヤレス信号を受信するワイヤレス信号受信部と、前記ワイヤレス信号受信部で受信された前記ワイヤレス信号に応じた受信信号を増幅する増幅回路部と、交流電源から前記照明負荷への給電路を開閉するスイッチング素子を有する負荷制御部と、前記増幅回路部で増幅された前記受信信号に基づいて前記スイッチング素子をスイッチング制御する第２の制御回路部と、前記ワイヤレス信号受信部、前記増幅回路部、前記負荷制御部および前記第２の制御回路部に電力を供給する電源回路部と、前記照明負荷を強制的に点灯または消灯させるための押釦スイッチを有するスイッチ入力部とを有し、前記スイッチ装置は、前記ワイヤレス信号に含まれる前記人感センサの前記検知情報が人体有りで且つ前記照度センサの前記検知情報である照度が前記基準照度未満の照度である場合に、前記照明負荷を点灯させることを特徴とする負荷制御システム。 A human sensor for detecting the presence or absence of a person in the detection area, an illuminance sensor for detecting ambient illuminance, and a wireless signal transmitter for transmitting a wireless signal including detection information of the human sensor and the illuminance sensor; The wireless signal transmission unit transmits power to the wireless signal every predetermined time, and the human sensor, the illuminance sensor, the wireless signal transmission unit, and the first control circuit unit are powered. And the first control circuit unit is configured such that the wireless signal transmitted at every predetermined time has an illuminance that is detection information of the illuminance sensor being less than the reference illuminance and the human sensor The first wireless signal based on the first control signal when the detection information of the human body is present, and the illuminance that is the detection information of the illuminance sensor is greater than or equal to the reference illuminance And the detection information of the human sensor includes a second wireless signal based on a second control signal when the human body is present, and the first wireless signal or the second wireless signal transmitted every predetermined time immediately after the signal, the third wireless based on prior Symbol third control signal when said a detection information illuminance changes from a preset reference illuminance or illuminance to the illuminance of less than the reference illuminance of the illuminance sensor a signal, regardless of the predetermined time, and immediately said wireless signal transmitter or we transmit to Rousset capacitors device,
A switch device for turning on or off the lighting load based on the wireless signal from the sensor device,
The switch device includes a wireless signal receiving unit that receives the wireless signal transmitted from the sensor device, an amplification circuit unit that amplifies a received signal corresponding to the wireless signal received by the wireless signal receiving unit, and an alternating current A load control unit having a switching element that opens and closes a power supply path from a power source to the lighting load; a second control circuit unit that performs switching control of the switching element based on the reception signal amplified by the amplification circuit unit; A power supply circuit unit that supplies power to the wireless signal receiving unit, the amplification circuit unit, the load control unit, and the second control circuit unit; and a pushbutton switch for forcibly turning on or off the lighting load. A switch input unit, wherein the switch device includes the detection information of the human sensor included in the wireless signal. When the a detection information illuminance and the illuminance sensor is there a human body is illuminance of less than the reference illuminance, the load control system, characterized in that turning on the lighting load.
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