JP2012169193A - Automatic turning-off device for luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate consumption of standby power.SOLUTION: An automatic turning-off device for a luminaire comprises: an operation switch 11 turning on/off luminaires FL, FL...; a solar cell 21 receiving light of the luminaires FL, FL...; a human detection sensor 22 detecting human beings inside a room; a control circuit 12; and a power supply unit 13. The operation switch 11 automatically turns off the luminaires FL, FL... based on a turn-off signal S3 from the control circuit 12.

Description

  The present invention relates to an automatic lighting device extinguishing device that can be particularly suitably applied to a lighting device in a place used by an unspecified number of people such as a classroom in a school.

  An infrared human sensor that detects the presence of a person and an illuminance sensor that detects the brightness of the surroundings are provided. When a person approaches when the surroundings are dark, the lighting equipment is automatically turned on. An automatic flashing switch that automatically turns off a lighting fixture after a time has been widely used (for example, Patent Documents 1 and 2).

  The automatic flashing switch is provided with a determination processing unit using, for example, a microcomputer in order to appropriately control an opening / closing unit that turns on and off the lighting fixture based on the output signals of the human sensor and the illuminance sensor. The microcomputer is constantly supplied with a predetermined DC voltage from a power supply circuit branched from a commercial power supply.

JP 2000-48689 A JP 2001-237085 A

  According to such a conventional technique, the automatic flashing switch consumes standby power and is uneconomical because it is necessary to always supply power from a power circuit directly connected to a commercial power source regardless of whether the lighting fixture is turned on or off. There was a problem.

  Therefore, in view of the problems of the prior art, an object of the present invention is to provide output power of a solar cell that receives light from a lighting fixture that is turned on, or commercial power that branches from a downstream side of an operation switch for turning on / off the lighting fixture. Is to provide an automatic lighting device extinguishing device that is completely disconnected from a commercial power source and does not consume standby power, at least when the lighting device is turned off.

  In order to achieve this object, the configuration of the invention of claim 1 includes an operation switch for manually turning on / off an indoor lighting fixture, a solar cell for receiving light from the indoor lighting fixture, and a person for detecting an indoor person. A control circuit that inputs the output signals of the sensation sensor, solar battery, and occupancy sensor, and outputs a turn-off signal when the indoor lighting fixture is lit and the room is unattended and exceeds the set time And a power supply unit for supplying power to the control circuit using the output power of the solar cell, and the operation switch has an opening mechanism for automatically turning off the indoor lighting fixture by a turn-off signal from the control circuit. The gist.

  According to a second aspect of the present invention, there is provided an operation switch for manually turning on / off an indoor lighting fixture, an optical sensor for receiving light from the indoor lighting fixture, a human sensor for detecting a person in the room, an optical sensor, A control circuit that inputs each output signal of the human sensor, outputs a turn-off signal when the indoor lighting equipment is lit and the room is unattended and exceeds the set time, and downstream of the operation switch And a power supply unit that feeds power to the control circuit using commercial power branched from the control circuit, and the operation switch has an opening mechanism that automatically turns off the indoor lighting fixture by a turn-off signal from the control circuit. To do.

  According to the configuration of the invention of claim 1, the control circuit inputs the output signals of the solar cell that receives light during lighting of the indoor lighting fixture and the human sensor that detects a person in the room. When it is determined that the indoor lighting equipment is lit and the room is unattended and the set time has been exceeded, a turn-off signal is output to the operation switch to activate the operation switch opening mechanism, It can be opened and the indoor lighting fixtures can be turned off automatically. That is, the indoor lighting apparatus does not illuminate an uninhabited room for a long time, and can realize so-called forgetting to turn off and reduce power consumption. Note that the operation switch can manually turn on the lighting fixtures that are turned off and turn off the lighting fixtures that are turned on. In addition, the control circuit includes necessary logic determination elements and timer elements for processing output signals of the solar battery and the human sensor.

  The control circuit is fed from a power supply unit that uses the output power of the solar cell and is disconnected from the commercial power supply. Therefore, the control circuit, together with the human sensor connected thereto, does not consume commercial power and does not consume standby power regardless of whether the indoor lighting fixture is turned on or off. The power supply unit shall be provided with a power storage element such as a battery or a capacitor for storing the output power from the solar battery, and ensure sufficient power to operate the opening mechanism of the operation switch via a turn-off signal from the control circuit. Is preferred.

  According to the configuration of the invention of claim 2, the control circuit inputs each output signal of the optical sensor that receives light during lighting of the indoor lighting fixture and the human sensor that detects the person in the room. The operation is the same as that of the control circuit of claim 1, and the same effect as that of the invention of claim 1 can be realized.

  The control circuit of claim 2 is supplied with power from a power supply unit that uses commercial power from the downstream side of the operation switch. Therefore, the control circuit, together with the optical sensor and the human sensor connected thereto, does not consume commercial power as standby power when at least the operation switch is opened and the indoor lighting fixture is turned off.

Overall configuration block diagram Schematic diagram of the main part showing the installation status FIG. 1 equivalent view showing another embodiment

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The automatic lighting device extinguishing device includes an operation switch 11, a control circuit 12, and a power supply unit 13 (FIG. 1).

  The operation switch 11 can be turned on and off by manually opening and closing the indoor lighting fixtures FL, FL... Fed by the commercial power source AC. Note that the lighting fixtures FL, FL,... Are installed, for example, on the ceiling of a school classroom R.

  In the classroom R, solar cells 21 that receive light during lighting of the lighting fixtures FL, FL... Are installed. The classroom R is provided with a human sensor 22 that detects the presence of a person in the classroom R. The solar cell 21 is a so-called solar battery or solar panel, and the human sensor 22 can be a photodiode, a phototransistor, or a pyroelectric element such as PZT. The output signals S1, S2 of the solar cell 21 and the human sensor 22 are input to the control circuit 12, and the output of the control circuit 12 is a trip signal constituting an unillustrated opening mechanism in the operation switch 11 as the extinguishing signal S3. It is guided to the coil TC. However, the operation switch 11 supplies the pulsed extinction signal S3 to the trip coil TC to activate the opening mechanism, thereby automatically opening the lighting fixtures FL, FL. Can be turned off.

  The output of the solar cell 21 is branched and connected to the control circuit 12 via the power supply unit 13. The power supply unit 13 includes diodes D1 and D2 for backflow prevention connected in series and a battery B for power storage connected to a connection point between the diodes D1 and D2. The battery B may be replaced with another power storage element such as a capacitor as long as it has a necessary and sufficient power storage capacity. The power supply unit 13 can supply power to the control circuit 12 using the output power of the solar cell 21, and the operating voltage of the human sensor 22 is supplied from the control circuit 12.

  When the operation switch 11 is manually turned on, the lighting fixtures FL, FL... Can be turned on by the commercial power source AC. Further, the lighting fixtures FL, FL... That are lit can be turned off by manually opening the operation switch 11.

  When the lighting fixtures FL, FL... Are lit, the solar cell 21 receives light from the lighting fixtures FL, FL... To generate power, charges the battery B in the power supply unit 13, and supplies power to the control circuit 12. To do. At this time, the solar cell 21 causes the output signal S1 to be input to the control circuit 12. Further, the human sensor 22 detects a person in the classroom R and inputs the output signal S2 to the control circuit 12.

  Therefore, when the control circuit 12 detects that the classroom R is unoccupied even though the lighting fixtures FL, FL... Are lit based on the output signals S1, S2, the control circuit 12 measures the duration of the state. When a predetermined set time is exceeded, a turn-off signal S3 is output to the operation switch 11, and the operation switch 11 is opened to automatically turn off the lighting fixtures FL, FL. In addition, the control circuit 12 clears the duration until then when the duration of the state in which the lighting fixtures FL, FL... Are on and the classroom R is unattended is interrupted without exceeding the set time. It shall be prepared for re-measurement.

  In the above description, the solar cell 21 may be installed so as to be attached to the inner surface of the shade FL1 of the lighting fixture FL installed on the ceiling portion of the classroom R regardless of FIG. 1 (FIG. 2).

  The lighting fixture FL is not limited to the fluorescent lamp fixture having the shade FL1 and the fluorescent tube FL2, but may be any type including an incandescent lamp fixture and an LED lamp fixture. The human sensor 22 may be a motion sensor that detects the movement of a person in the room. Furthermore, the classroom R in which the lighting fixture FL is provided may be an arbitrary indoor space such as an arbitrary facility or building other than a school.

  In FIG. 2, the control circuit 12 and the power supply unit 13 may be incorporated in one or both of the operation switch 11 and the human sensor 22, or may be incorporated in another case or box (not shown).

Other embodiments

  The control circuit 12 can supply power via the power supply unit 14 that uses commercial power branched from the downstream side of the operation switch 11 (FIG. 3). However, at this time, in the classroom R, instead of the solar battery 21, an optical sensor 23 that receives light during lighting of the lighting fixtures FL, FL... Is installed, and an output signal S 1 of the optical sensor 23 Has been entered.

  The power supply unit 14 includes a transformer, a rectifier circuit, a smoothing circuit, a constant voltage circuit, and the like (not shown). The power supply unit 14 supplies power to the control circuit 12 and supplies operating voltages for the human sensor 22 and the optical sensor 23. Therefore, the control circuit 12 determines the set time for the duration of the state in which the lighting fixtures FL, FL... Are on and the classroom R is unattended based on the output signals S1, S2 of the optical sensor 23 and the human sensor 22. If it exceeds, a turn-off signal S3 is output to the operation switch 11, and the entire operation can be performed in the same manner as in FIG.

  In the above description, a plurality of solar cells 21 or photosensors 23 may be provided in the classroom R according to the area of the classroom R, and the same applies to the human sensor 22. At this time, the control circuit 12 is based on the output signals S1, S1... Of the plurality of solar cells 21, 21. What is necessary is just to detect that the inside of the classroom R is unmanned even though at least one lighting fixture FL in the classroom R is turned on, and measure the duration of the state.

  The present invention can be widely and suitably applied to use for preventing forgetting to turn off the lighting fixtures FL, FL...

FL ... Lighting equipment S1, S2 ... Output signal S3 ... Light-off signal 11 ... Operation switch 12 ... Control circuit 13, 14 ... Power supply unit 21 ... Solar cell 22 ... Human sensor 23 ... Light sensor

Patent applicant

Claims (2)

  An operation switch for manually turning on and off the indoor lighting fixture, a solar cell that receives light from the indoor lighting fixture, a human sensor that detects a person in the room, and each output signal of the solar cell and the human sensor And a control circuit that outputs a turn-off signal when the indoor lighting apparatus is lit and the room is unattended and exceeds a set time, and the control circuit uses output power of the solar cell. And a power supply unit for supplying power to the lighting device, wherein the operation switch has an opening mechanism for automatically turning off the lighting device in the room by a turn-off signal from the control circuit.   An operation switch for manually turning on and off the indoor lighting fixture, a light sensor for receiving light from the indoor lighting fixture, a human sensor for detecting a person in the room, and each output signal of the optical sensor and the human sensor. Uses a control circuit that outputs a turn-off signal when the indoor lighting equipment is lit and the room is unattended and exceeds the set time, and commercial power that branches from the downstream side of the operation switch. And a power supply unit for supplying power to the control circuit, wherein the operation switch has an opening mechanism for automatically turning off the indoor lighting fixture by a turn-off signal from the control circuit. Off device.

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