JP2012169179A - Illuminating device - Google Patents

Illuminating device Download PDF

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JP2012169179A
JP2012169179A JP2011030024A JP2011030024A JP2012169179A JP 2012169179 A JP2012169179 A JP 2012169179A JP 2011030024 A JP2011030024 A JP 2011030024A JP 2011030024 A JP2011030024 A JP 2011030024A JP 2012169179 A JP2012169179 A JP 2012169179A
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light source
human body
secondary battery
power supply
body detection
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Tetsuya Tanigawa
哲也 谷川
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Panasonic Corp
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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
    • 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
    • Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an illuminating device capable of suppressing useless power consumption.SOLUTION: The illuminating device comprises: a solar battery 1; a secondary battery 2; a human body detection section 3; a light source driver section 5 that illuminates an electric light source 4 according to a detection of a human body by the human body detection section 3; and a power supply control section 6 that turns on/off power supply from the secondary battery 2. The power supply control section 6 determines whether it is daytime or nighttime based on a power generation amount of the solar battery 1, and also turns off power supply from the secondary battery 2 to the human body detection section 3 and the light source driver section 5 during a period in which it is determined as daytime, and turns on power supply from the secondary battery 2 to the human body detection section 3 and the light source driver section 5 during a period in which it is determined as nighttime. Electric power is not supplied to the light source driver section 5 during a period in which it is determined as daytime, and thus power consumption is suppressed as compared with the case where electric power is supplied to the light source driver section 5 even in the daytime.

Description

本発明は、照明装置に関するものである。   The present invention relates to a lighting device.

従来から、太陽電池と、二次電池とを備え、昼間は太陽電池によって二次電池を充電するとともに、夜間は二次電池を電源として電気的な光源を点灯させる照明装置が提供されている。さらに、人体を検出する人体検出部を有し、夜間の動作としては人体の検出に応じて光源を点灯させる照明装置もある。このような照明装置では、無駄な電力消費を抑えるため、昼間には人体検出部への電力の供給を停止させる場合もある（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, there has been provided an illuminating device that includes a solar battery and a secondary battery, charges the secondary battery with the solar battery during the daytime, and lights an electrical light source using the secondary battery as a power source at nighttime. Further, there is a lighting device that has a human body detection unit that detects a human body and that turns on a light source in accordance with detection of the human body as an operation at night. In such a lighting device, in order to suppress wasteful power consumption, the supply of power to the human body detection unit may be stopped in the daytime (see, for example, Patent Document 1).

実開平４−１２６６１１号公報Japanese Utility Model Publication No. 4-126611

ところで、上記のように人体検出部への電力の供給が停止されても、人体検出部の出力に応じて電気的な光源を点灯させる光源駆動部に対して昼間にも電力が供給される場合、その電力は無駄に消費されてしまう。   By the way, even when the supply of electric power to the human body detection unit is stopped as described above, electric power is supplied even to the light source driving unit that turns on the electric light source according to the output of the human body detection unit in the daytime. That power is wasted.

本発明は、上記事由に鑑みて為されたものであり、その目的は、無駄な電力消費が抑えられる照明装置を提供することにある。   The present invention has been made in view of the above reasons, and an object of the present invention is to provide an illumination device in which wasteful power consumption can be suppressed.

本発明の照明装置は、太陽電池と、前記太陽電池によって充電される二次電池と、人体を検出する人体検出部と、前記人体検出部の出力に応じて電気的な光源を点灯させる光源駆動部と、前記太陽電池の発電量に基いて昼夜の判定を行うとともに、昼と判定されている期間には前記二次電池から前記人体検出部と前記光源駆動部とへの給電をオフし、夜と判定されている期間には前記二次電池から前記人体検出部と前記光源駆動部とへの給電をオンする給電制御部とを備えることを特徴とする。   The illumination device of the present invention includes a solar battery, a secondary battery charged by the solar battery, a human body detection unit that detects a human body, and a light source drive that turns on an electrical light source according to the output of the human body detection unit And determining the day and night based on the amount of power generated by the solar cell, and turning off the power supply from the secondary battery to the human body detection unit and the light source driving unit during the period when the day is determined, A power supply control unit that turns on power supply from the secondary battery to the human body detection unit and the light source drive unit in a period determined to be night is provided.

この照明装置において、前記二次電池の両端電圧が所定の上限電圧以上であるときに前記太陽電池から前記二次電池への給電をオフして前記二次電池の過充電を防止する充電制御部を備えることが望ましい。   In this lighting device, when the voltage across the secondary battery is equal to or higher than a predetermined upper limit voltage, a charging control unit that turns off power supply from the solar battery to the secondary battery to prevent overcharge of the secondary battery It is desirable to provide.

本発明によれば、昼と判定されている期間には二次電池から人体検出部と光源駆動部とへの給電がオフされるので、昼と判定されている期間にも光源駆動部への給電が継続される場合に比べて無駄な電力消費が抑えられる。   According to the present invention, since the power supply from the secondary battery to the human body detection unit and the light source driving unit is turned off during the period determined to be daytime, the power to the light source driving unit is also determined during the period determined to be daytime. Wasteful power consumption can be suppressed as compared with the case where power feeding is continued.

本発明の実施形態を示すブロック図である。It is a block diagram which shows embodiment of this invention. 同上を示す斜視図である。It is a perspective view which shows the same as the above.

以下、本発明を実施するための最良の形態について、図面を参照しながら説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

本実施形態は、図１に示すように、太陽電池１と、二次電池２と、人体検出部３と、電気的な光源４を点灯させる光源駆動部５と、二次電池２からの給電をオンオフする給電制御部６と、二次電池２への充電をオンオフする充電制御部７とを備える。   In the present embodiment, as shown in FIG. 1, a solar cell 1, a secondary battery 2, a human body detection unit 3, a light source driving unit 5 that turns on an electrical light source 4, and power feeding from the secondary battery 2. The power supply control unit 6 for turning on / off the battery and the charge control unit 7 for turning on / off the charging of the secondary battery 2 are provided.

また、本実施形態は、図２に示すように下端を地面に固定されるポール８１を備える。太陽電池１はポール８１の上端に取り付けられ、人体検出部３と光源４と光源駆動部５とはそれぞれ太陽電池１の下側においてポール８１に取り付けられた灯体８２に収納及び保持され、二次電池２と給電制御部６と充電制御部７とはそれぞれポール８１の下端に取り付けられたケース８３に収納及び保持される。   Moreover, this embodiment is provided with the pole 81 by which a lower end is fixed to the ground as shown in FIG. The solar cell 1 is attached to the upper end of the pole 81, and the human body detection unit 3, the light source 4, and the light source driving unit 5 are housed and held in a lamp 82 attached to the pole 81 on the lower side of the solar cell 1, respectively. The secondary battery 2, the power supply control unit 6, and the charge control unit 7 are housed and held in a case 83 attached to the lower end of the pole 81.

太陽電池１は太陽光を受光して電流を発生させるものであって、このような太陽電池１としてはシリコンを用いたものや有機薄膜を用いたものなど種々のものが周知である。   The solar cell 1 receives sunlight and generates an electric current, and various types of solar cells 1 such as those using silicon and those using an organic thin film are well known.

二次電池２としては例えばリチウムイオン電池や鉛蓄電池など種々のものが周知である。   As the secondary battery 2, various types such as a lithium ion battery and a lead storage battery are well known.

人体検出部３は、所定の検出範囲内に人体が存在するか否かを判定するとともに、判定結果に応じた電気信号を光源駆動部５に入力するものである。上記の検出範囲は、例えば光源４によって照明される範囲と略同じとされる。上記のような人体検出部３としては、人体が放射する赤外線を検出する焦電センサを用いたものや、送信波（例えば超音波や電波）を検出範囲に送信するとともに反射波を受信し反射波に生じたドップラシフトに基いて人体を検出するものなど、種々のものが周知である。   The human body detection unit 3 determines whether or not a human body exists within a predetermined detection range, and inputs an electric signal corresponding to the determination result to the light source driving unit 5. The detection range is substantially the same as the range illuminated by the light source 4, for example. As the human body detection unit 3 as described above, a pyroelectric sensor that detects infrared rays radiated from a human body, a transmission wave (for example, an ultrasonic wave or a radio wave) is transmitted to a detection range, and a reflected wave is received and reflected. Various things are known, such as detecting a human body based on a Doppler shift generated in a wave.

光源４としては発光ダイオードや白熱灯などの周知の光源を用いることができる。   As the light source 4, a known light source such as a light emitting diode or an incandescent lamp can be used.

また、光源駆動部５は、人体検出部３の出力に応じて光源４を点灯させる。具体的には例えば、光源駆動部５は、光源４への給電路に挿入されたスイッチ（例えば半導体スイッチやリレー。図示せず。）と、所定の制御遅れ時間を計時するためのタイマ回路（図示せず）と、上記のスイッチをオンオフ駆動するスイッチ駆動回路（図示せず）とを有する。すなわち、上記のスイッチ駆動回路は、人体検出部３によって人体が検出されてから上記の制御遅れ時間が経過するまでは上記のスイッチをオン状態に維持することで光源４の点灯を継続させ、人体検出部３によって人体が検出されない状態が上記の制御遅れ時間だけ継続したときに上記のスイッチをオフ制御することで光源４を消灯させる。または、光源駆動部５は、光源４の点灯に適した電力を生成する周知のスイッチング電源であってもよい。   The light source driving unit 5 turns on the light source 4 according to the output of the human body detection unit 3. Specifically, for example, the light source driving unit 5 includes a switch (for example, a semiconductor switch or a relay, not shown) inserted in a power feeding path to the light source 4 and a timer circuit (for measuring a predetermined control delay time). And a switch drive circuit (not shown) for driving the above-described switch on and off. That is, the switch drive circuit keeps the light source 4 on by maintaining the switch on until the control delay time elapses after the human body detection unit 3 detects the human body, When the state where no human body is detected by the detection unit 3 continues for the control delay time, the light source 4 is turned off by turning off the switch. Alternatively, the light source driving unit 5 may be a known switching power supply that generates electric power suitable for lighting the light source 4.

充電制御部７は、二次電池２の両端電圧（以下、「電池電圧」と呼ぶ。）と所定の上限電圧との比較を随時行うとともに、電池電圧が上限電圧を上回っていれば太陽電池１から二次電池２への給電を停止させる（オフする）ことで二次電池２の過充電を防止する。上記のような充電制御部７は、太陽電池１から二次電池２への給電路に挿入されたスイッチ（例えば半導体スイッチやリレー。図示せず。）と、電池電圧と上限電圧との比較結果に応じて上記のスイッチを駆動する駆動回路（図示せず）とで実現することができる。さらに、充電制御部７が、太陽電池１の出力を二次電池２の充電に適した電力に変換する回路を含んでいてもよい。上記のような充電制御部７は、例えば太陽電池１を電源としており、給電制御部６によっては給電をオンオフされない。   The charging control unit 7 compares the voltage across the secondary battery 2 (hereinafter referred to as “battery voltage”) with a predetermined upper limit voltage as needed, and if the battery voltage exceeds the upper limit voltage, the solar cell 1. Is stopped (turned off) to prevent secondary battery 2 from being overcharged. The charge control unit 7 as described above is a comparison result between a switch (for example, a semiconductor switch or a relay, not shown) inserted in a power supply path from the solar cell 1 to the secondary battery 2 and the battery voltage and the upper limit voltage. Accordingly, it can be realized by a drive circuit (not shown) for driving the switch. Furthermore, the charging control unit 7 may include a circuit that converts the output of the solar cell 1 into electric power suitable for charging the secondary battery 2. The charge control unit 7 as described above uses, for example, the solar cell 1 as a power source, and the power supply control unit 6 does not turn on or off the power supply.

給電制御部６は、太陽電池１の発電量に基いて昼夜を判定する。そして、夜と判定されている期間（例えば、太陽電池１の発電量が所定量よりも少ない期間）には、給電制御部６は、二次電池２から人体検出部３と光源４と光源駆動部５とへの給電をオンする。また、昼と判定されている期間（例えば、太陽電池１の発電量が所定量よりも多い期間）には、給電制御部６は二次電池２から人体検出部３と光源４と光源駆動部５とへの給電をオフする。つまり、給電制御部６によって昼と判定されている期間には、人体検出部３にも光源駆動部５にも電力が供給されないから、人体の存否に関わらず光源４は点灯されない。   The power supply control unit 6 determines day and night based on the power generation amount of the solar cell 1. Then, during a period determined to be night (for example, a period in which the amount of power generated by the solar cell 1 is less than a predetermined amount), the power supply control unit 6 starts from the secondary battery 2 to the human body detection unit 3, the light source 4, and the light source drive. Power supply to the unit 5 is turned on. In addition, during a period in which it is determined to be noon (for example, a period in which the power generation amount of the solar cell 1 is greater than a predetermined amount), the power supply control unit 6 starts from the secondary battery 2 to the human body detection unit 3, the light source 4, and the light source driving unit. Turn off the power supply to 5. That is, during the period when the power supply control unit 6 determines that it is daytime, neither the human body detection unit 3 nor the light source driving unit 5 is supplied with power, and thus the light source 4 is not turned on regardless of the presence or absence of the human body.

上記構成によれば、昼と判定されている期間には光源駆動部５に電力が供給されないから、昼にも光源駆動部５に電力が供給される場合に比べて電力の消費が抑えられる。   According to the above configuration, since power is not supplied to the light source driving unit 5 during the period when it is determined to be noon, power consumption is suppressed as compared with a case where power is supplied to the light source driving unit 5 in the daytime.

なお、給電制御部６が、電池電圧と所定の下限電圧との比較を随時行うとともに、電池電圧が下限電圧を下回っていれば二次電池２から人体検出部３と光源４と光源駆動部５とへの給電をオフすることで二次電池２の過放電を防止してもよい。   The power supply control unit 6 compares the battery voltage with a predetermined lower limit voltage as needed, and from the secondary battery 2 to the human body detection unit 3, the light source 4, and the light source driving unit 5 if the battery voltage is lower than the lower limit voltage. The over-discharge of the secondary battery 2 may be prevented by turning off the power supply to and.

ここで、太陽電池１の発電量や二次電池２の充電量を表示する表示部（図示せず）が着脱自在に接続できるように、適宜のコネクタを設けてもよい。上記のような表示部は例えば液晶パネルを用いて実現することができる。さらに、上記の表示部を駆動する回路が光源駆動部５の回路とともに１チップに集積化されている場合、表示部が接続されている期間には昼間であっても光源駆動部５に電力が供給されるように回路を構成してもよい。   Here, an appropriate connector may be provided so that a display unit (not shown) for displaying the power generation amount of the solar cell 1 and the charge amount of the secondary battery 2 can be detachably connected. The display unit as described above can be realized by using, for example, a liquid crystal panel. Further, when the circuit for driving the display unit is integrated on one chip together with the circuit for the light source driving unit 5, power is supplied to the light source driving unit 5 even during the daytime when the display unit is connected. The circuit may be configured to be supplied.

１ 太陽電池
２ 二次電池
３ 人体検出部
４ 光源
５ 光源駆動部
６ 給電制御部
７ 充電制御部 DESCRIPTION OF SYMBOLS 1 Solar cell 2 Secondary battery 3 Human body detection part 4 Light source 5 Light source drive part 6 Electric power feeding control part 7 Charging control part

Claims (2)

太陽電池と、
前記太陽電池によって充電される二次電池と、
人体を検出する人体検出部と、
前記人体検出部の出力に応じて電気的な光源を点灯させる光源駆動部と、
前記太陽電池の発電量に基いて昼夜の判定を行うとともに、昼と判定されている期間には前記二次電池から前記人体検出部と前記光源駆動部とへの給電をオフし、夜と判定されている期間には前記二次電池から前記人体検出部と前記光源駆動部とへの給電をオンする給電制御部とを備えることを特徴とする照明装置。 Solar cells,
A secondary battery charged by the solar cell;
A human body detection unit for detecting a human body;
A light source driving unit that turns on an electrical light source according to the output of the human body detection unit;
Based on the amount of power generated by the solar cell, day and night are determined, and power is supplied from the secondary battery to the human body detection unit and the light source driving unit during the period when the day is determined, and it is determined as night. An illumination apparatus comprising: a power supply control unit that turns on power supply from the secondary battery to the human body detection unit and the light source driving unit during a period of time. 前記二次電池の両端電圧が所定の上限電圧以上であるときに前記太陽電池から前記二次電池への給電をオフして前記二次電池の過充電を防止する充電制御部を備えることを特徴とする請求項１記載の照明装置。   A charge control unit is provided for preventing overcharging of the secondary battery by turning off the power supply from the solar battery to the secondary battery when the voltage across the secondary battery is equal to or higher than a predetermined upper limit voltage. The lighting device according to claim 1.
JP2011030024A 2011-02-15 2011-02-15 Illuminating device Withdrawn JP2012169179A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105704896A (en) * 2016-04-14 2016-06-22 云南晶能科技有限公司 Intelligent charge-discharge power balance control solar street lamp and control method based on the intelligent charge-discharge power balance control solar street lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105704896A (en) * 2016-04-14 2016-06-22 云南晶能科技有限公司 Intelligent charge-discharge power balance control solar street lamp and control method based on the intelligent charge-discharge power balance control solar street lamp
CN105704896B (en) * 2016-04-14 2018-03-30 云南晶能科技有限公司 A kind of intelligent charge-discharge electric power balance control solar street light and its control method

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