JP2007200722A - Human detection type automatic switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To alleviate a dazzling feeling even when turning on/off is switched in a fluorescent lamp illumination fixture while suppressing cost increase caused by complicating a circuit configuration. <P>SOLUTION: This is provided with a light emitting diode LD and an LED lighting part 11 in which the light emitting diode LD is illuminated by means of the LED lighting part 11 when a control circuit part 1 turns on a switch S. Since a light volume of the light emitting diode LD is sufficiently small in general compared with that of the fluorescent lamp illumination fixture L, the dazzling feeling can be alleviated by lighting the light emitting diodes LD instead of the fluorescent lamp illumination fixture L during midnight hours. Furthermore, since the LED lighting part 11 has a simpler configuration compared with a circuit for light-controlling the fluorescent lamp illumination fixture L, the cost increase caused by complicating the circuit configuration can be suppressed compared with the case the light is controlled in the fluorescent lamp illumination fixture L. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a human body detection type automatic switch that detects the presence / absence of a person in a detection region and turns on / off power supply from a commercial AC power supply to a fluorescent lamp luminaire according to the detection result.

Conventionally, the presence or absence of a person in a detection region is detected by detecting a heat ray emitted from a human body with a heat ray sensor, and an illumination load (incandescent lamp illuminator or fluorescent lamp illuminator) is detected from a commercial AC power source according to the detection result. There has been provided a human body detection type automatic switch for turning on / off the power supply to (see Patent Document 1). Such a human body detection type automatic switch is installed, for example, in a corridor or entrance in a house, and when the presence of a person is detected in a dark environment, the lighting load is turned on to illuminate the corridor or entrance. It is possible to save energy by automatically turning off the illumination load after a certain period of time has elapsed since detection was stopped.
JP 2003-249152 A

  However, the conventional example has the following problems. For example, if a person who went to bed went to the toilet at midnight, when a person walking in the hallway is detected by the automatic switch and the lighting load automatically lights up, it will feel very dazzling because it will brighten rapidly from a dark state There was a problem of being. For such a problem, when the illumination load is an incandescent lamp luminaire, glare can be reduced by dimming the incandescent lamp by phase-controlling the power supply to the illumination load. However, when the illumination load is a fluorescent lamp luminaire, dimming cannot be performed by the method of phase control of the power supply as in the incandescent lamp luminaire. For example, the dimming signal is output to the fluorescent lamp luminaire. It is necessary to provide an optical device, and the circuit configuration becomes complicated and the cost is very high, which is not practical.

  The present invention has been made in view of the above circumstances, and its purpose is to alleviate the dazzling feeling while suppressing an increase in cost due to a complicated circuit configuration even when switching on / off of a fluorescent lamp luminaire. It is an object of the present invention to provide a human body detection type automatic switch capable of performing the above.

  In order to achieve the above object, the invention of claim 1 detects the presence or absence of a person in the detection area and automatically turns on / off the power supply from the commercial AC power source to the fluorescent lamp lighting apparatus according to the detection result. An illumination load using an individual light emitting element as a light source; a human body detection unit that outputs a human body detection signal when detecting the presence of a person in the detection region; and a brightness detection unit that detects ambient brightness. , An open / close element that opens and closes a power supply path from a commercial AC power supply to a fluorescent lamp luminaire, a clock means that measures time, an operation input reception means that receives manual operation input, and a fluorescent light by controlling opening and closing of the open / close element And a control means for controlling turning on / off of the lighting load and turning on / off the lighting fixture, and the control means has a situation where the brightness detected by the brightness detecting means is brighter than a predetermined lighting start illuminance Even if a human body detection signal is output from the human body detection means, the opening / closing element is not closed and the illumination load is not turned on, and the brightness detected by the brightness detection means is darker than the lighting start illuminance and time is measured by the clock means. In a situation where the time is not included in the predetermined midnight time zone, when a human body detection signal is output from the human body detection means, the switch is closed for a predetermined operation holding time to turn on the fluorescent lamp illuminator and illuminate In the situation where the brightness detected by the brightness detection means is darker than the lighting start illuminance and the current time measured by the clock means is included in the midnight time zone without lighting the load, the human body detection signal is output from the human body detection means. The lighting load is turned on only during the operation holding time and the switching element is not closed, and the detection result of the human body detection means and the brightness detection means are further detected. The operation mode for controlling the switching element and the lighting load based on the brightness and the time measured by the clock means, the operation mode for forcibly closing the switching element, the operation mode for forcibly lighting the lighting load, One of the operation modes in which the opening / closing element is opened and the illumination load is turned off is alternatively switched according to the operation input received by the operation input receiving means.

  According to a second aspect of the present invention, in the first aspect of the invention, the control means can adjust at least any one of the lighting start illuminance, the operation holding time, and the midnight time period according to the operation input received by the operation input receiving means. It is characterized by being.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the control means is midnight when the brightness detected by the brightness detection means is darker than the lighting start illuminance and the current time measured by the clock means is predetermined. The illumination load is turned on when a human body detection signal is not output from the human body detection means in a situation not included in the belt.

  According to a fourth aspect of the present invention, in any one of the first to third aspects of the present invention, the apparatus further comprises receiving means for receiving a human body detection signal transmitted from the outside via a signal line, and the control means detects the human body from the human body detecting means. When the signal is output or the human body detection signal is received by the receiving means, the switching element is closed or the illumination load is turned on.

  According to a fifth aspect of the present invention, there is provided the sensor element according to the fourth aspect, wherein the human body detecting means for outputting a human body detection signal when the presence of a person in the detection region is detected is housed in a container disposed on the ceiling. The machine is connected to receiving means via a signal line.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, an external illumination load having an individual light emitting element as a light source is connected via a power supply line, and the control means supplies power when the illumination load is turned on. Power is also supplied to the external lighting load via the electric wire, and power supply to the external lighting load is stopped when the lighting load is turned off.

  The invention of claim 7 is the invention according to any one of claims 1 to 6, wherein a pair of power supply terminals to which a commercial AC power supply is connected, and a first load terminal connected to one of the power supply terminals via an opening / closing element And a second load terminal connected to the other power supply terminal, and a third load terminal connected to the one power supply terminal connected to the first load terminal.

  According to the first aspect of the present invention, the amount of light of an illumination load generally using a solid light emitting element such as a light emitting diode is sufficiently smaller than the amount of light of a fluorescent lamp luminaire. By lighting the lighting load instead of the lighting fixture, the dazzling feeling can be relieved, and the circuit for lighting the solid light emitting element is simpler than the circuit for dimming the fluorescent lighting fixture, It is possible to suppress an increase in cost due to a complicated circuit configuration when dimming a fluorescent lamp. Further, the operation mode according to the situation can be selected by manual operation, and the usability is improved.

  According to the invention of claim 2, at least one of the lighting start illuminance, the operation holding time, and the midnight time zone can be adjusted according to the situation, so that the usability is improved.

  According to the invention of claim 3, in a situation where the surroundings are dark (for example, at night), a fluorescent lamp is lit brightly in a situation where a person is detected, and a fluorescent lamp is used in a situation where no person is detected. It is possible to give a sense of security while saving energy by turning on the lighting load instead of the lighting fixture.

  According to the invention of claim 4, it is possible to expand the detection region for detecting the presence or absence of a person.

  According to the invention of claim 5, the same effect as that of the invention of claim 4 is obtained.

  According to invention of Claim 6, the illumination range by illumination load can be expanded.

  According to invention of Claim 7, lighting / extinction of a fluorescent lamp lighting fixture can be switched from many places like a three-way switch.

(Embodiment 1)
FIG. 1 shows a circuit block diagram of the present embodiment. The human sensor unit 2 detects a heat ray radiated from a human body with a pyroelectric heat ray sensor, amplifies it with a built-in amplifier, and further compares the amplified output with a reference value using a built-in amplifier. When the reference value is exceeded, that is, when a person is present in the detection region, an H level human body detection signal is output to the control circuit unit 1. Note that the detection area of the human sensor unit 2 is set by an optical element such as a lens, a mirror, a light shielding plate, and the like arranged in the incident path of the heat ray to the heat ray sensor. Further, the brightness sensor unit 3 outputs a signal corresponding to the ambient brightness to the control circuit unit 1 using a photoelectric conversion element such as a photodiode or a solar battery.

  The control circuit unit 1 includes a microcomputer as a main component, and converts the output signal of the brightness sensor unit 3 into a digital value by an A / D converter and takes it in, and the brightness setting unit 8 as described later. It is determined whether the surrounding brightness (ambient illuminance) is brighter or darker than the lighting start illuminance by comparing with a set threshold value (lighting start illuminance).

  The control circuit unit 1 has a function of opening / closing an opening / closing element 4 such as a relay via the driving unit 5. The switching element 4 is between a pair of power terminals T1 and T2 that connect the commercial AC power source AC and load terminals T3 and T4 that connect the fluorescent lamp luminaire L (that is, between the power terminal T1 and the load terminal T4). It is connected. Therefore, when the control circuit unit 1 controls the drive unit 5 to close (turn on) the opening / closing element 4, the fluorescent lamp luminaire L fed from the commercial AC power supply AC is turned on, and the opening / closing element 4 is opened (off). Then, power supply from the commercial AC power supply AC is stopped, and the fluorescent lamp luminaire L is turned off. The power supply terminals T1 and T2 are connected to a stabilized DC power supply 6 that receives a commercial AC power supply AC and generates a constant DC voltage. The stabilized DC power supply 6 supplies operating power to the internal circuit.

  Furthermore, the LED lighting unit 11 and the light emitting diode LD as the individual light emitting element are connected to the power supply terminals t1 and t2 via the switch S. The light emitting diode LD emits white light. For example, the light emitting diode LD has a blue light emitting diode chip and a translucent cover containing a fluorescent material that emits yellow, and emits white light by mixing blue and yellow. To do. The LED lighting unit 11 steps down and rectifies an AC voltage supplied from the commercial AC power supply AC, thereby applying a DC voltage to the light emitting diode LD to emit light (lighting). The light emitting diode LD is lit only when is turned on. However, other types of individual light emitting elements such as organic EL elements may be used instead of the light emitting diodes LD.

  The basic operation of the control circuit unit 1 is that when the brightness detected by the brightness sensor unit 3 is darker than the lighting start illuminance, the human sensor unit 2 detects a person in the detection area and the human body detection signal is generated. When output, it is an operation of turning on the fluorescent lamp luminaire L by closing the opening / closing element 4 via the drive unit 5, and the time when the fluorescent lamp luminaire L is lit (this time is referred to as the operation holding time). Is limited by the timer means constituted by the control circuit unit 1. The timer means limits a predetermined operation holding time each time a human body detection signal is input to the control circuit unit 1, and has a so-called retriggerable function. That is, when the human body detection signal is input before the operation holding time limit operation is completed, the lighting time of the fluorescent lamp luminaire L is extended by re-timing the operation holding time from the beginning. Yes. The operation holding time can be adjusted by the operation holding time setting unit 9.

  In addition, the control circuit unit 1 captures the output of the clock unit 10 that measures time. The control circuit unit 1 detects the brightness sensor unit 3 when the output of the clock unit 10, that is, the current time is included in a preset midnight time zone (for example, a time zone from midnight to 4 am). When the human sensor 2 detects a person in the detection area and outputs a human body detection signal in a state where the brightness is darker than the lighting start illuminance, the switch S is turned on to supply power to the LED lighting unit 11 Then, the light emitting diode LD is turned on for the operation holding time. At this time, the control circuit unit 1 does not perform the operation of closing the opening / closing element 4 via the drive unit 5 and does not light the fluorescent lamp luminaire L. The midnight time zone can be adjusted by the midnight time zone setting unit 13.

  Further, the control circuit unit 1 can be switched to three operation modes of the automatic mode, the off mode, and the continuous on mode using the operation mode setting unit 7, and when the automatic mode is set, the human sensor unit 2 And the lighting / extinguishing of the fluorescent lamp luminaire L and the light emitting diode LD is automatically controlled according to the detection result of the brightness sensor unit 3. Further, when the operation mode is set to the off mode or the continuous on mode, the control circuit unit 1 causes the fluorescent lamp luminaire L (or the fluorescent lamp luminaire L and the light emitting diode regardless of the detection results of the sensor units 2 and 3). LD) is forcibly turned off or turned on.

  Further, the brightness setting unit 8 is used to switch the brightness threshold (lighting start illuminance) between two levels of light (approximately 80 lux or less) and dark (approximately 20 lux or less), or the brightness sensor unit 3 It is also possible to set the fluorescent lamp luminaire L and the light emitting diode LD to be controlled to blink on the basis of only the human body detection signal of the human sensor unit 2 regardless of the detection result. That is, in this embodiment, the operation mode setting unit 7, the brightness setting unit 8, the operation holding time setting unit 9, and the midnight time zone setting unit 13 correspond to the operation input receiving unit, and the setting units 7, 8, 9 , 13 is input to the control circuit unit 1 (operation input).

  Next, the structure of this embodiment will be described with reference to FIGS. The above-described electronic components constituting each part are mounted on a printed wiring board and housed in a container 20 made of a box-shaped synthetic resin molded product. The body 20 is formed in a size corresponding to a single switch for a wide handle type (see FIG. 4 of JIS C8304), and a rear end portion of the body is inserted into an embedding hole provided on a wall surface using a mounting frame (not shown). Embedded in the form of embedding. However, the front surface of the mounting frame is covered with a flash plate (wide handle type switch plate) 50 defined in JIS C8316.

  The upper part of the front surface of the body 20 is transparent to visible light and infrared rays (heat rays), and external light (including heat rays) is collected on the light receiving surfaces of the human sensor unit 2 and the brightness sensor unit 3. The lens body 21 for illuminating is disposed, and the human sensor unit 2 and the brightness sensor unit 3 are disposed inside the vessel body 20 so as to face the lens body 21. Further, a square hole-shaped insertion hole 22 is formed in the lower center of the lens body 21 on the front surface of the container body 20, and a slide button 23 of a slide-type changeover switch constituting the operation mode setting unit 7 is formed from the insertion hole 22. Exposed. Furthermore, operation knobs 24, 25, and 26 for setting the operation holding time setting unit 9, the brightness setting unit 8, and the midnight time zone setting unit 13 are exposed in the center of the front surface of the body 20 (see FIG. 3). The operation holding time setting unit 9 includes a rotating volume, and the operation holding time can be switched according to the resistance value of the rotating volume by rotating the operation knob 24 of the rotating volume. The brightness setting unit 8 is composed of a rotary changeover switch, and the lighting start illuminance can be switched between two levels of light and dark by operating the operation knob 25 of the changeover switch. Further, the midnight time zone setting unit 13 is also composed of a rotary volume, and by rotating the rotary volume operation knob 26, several types of midnight time zones prepared in advance are selected according to the resistance value of the rotary volume. Can be switched to. Here, the operation knobs 24, 25, and 26 for setting the operation holding time setting unit 9, the brightness setting unit 8, and the midnight time zone setting unit 13 are not frequently operated. In order to prevent 24 to 26 from being operated by mistake, the door body 27 is configured to cover the central portion of the front surface of the container 20 on which the operation knobs 24 to 26 are disposed so as to be freely opened and closed. The door body 27 is pivotally attached to the front surface of the container body 20 at the right end, and covers the operation knobs 24 to 26 in a closed state to prevent erroneous operation of the operation knobs 24 to 26 (see FIG. 2), in the opened state, the operation knobs 24 to 26 are exposed so that they can be operated (see FIG. 3).

  A window hole (not shown) for exposing the light emitting diode LD is opened at the lower part of the front surface of the container body 20, and a translucent cover 14 is attached to cover the lower part of the front surface of the container body 20 including the window hole. The translucent cover 14 is formed of a transparent synthetic resin material (for example, acrylic resin) containing a diffusing material, and diffuses light emitted from the light emitting diode LD to expand an irradiation range.

  By the way, in this embodiment, the human body detection signal receiving part 12 which receives the human body detection signal transmitted from the sensor subunit | mobile_unit 100,200 is connected to the control circuit part 1 (refer FIG. 1). The human body detection signal receiving unit 12 receives a human body detection signal transmitted from the sensor slave units 100 and 200 via the sensor slave unit connection line Ls connected to the sensor slave unit terminals T5 and T6 and supplies the human body detection signal to the control circuit unit 1. And a function of supplying operating power to the sensor slave units 100 and 200 by superimposing a DC voltage on the sensor slave unit connection line Ls.

  As shown in FIG. 4A, the sensor slave unit 100 includes a power supply unit 101 that stabilizes a DC voltage superimposed on the sensor slave unit connection line Ls and creates an operating power source, and an automatic switch (master unit) of the present embodiment. ) Human sensor unit 102 having the same configuration as human sensor unit 2, and human body detection signal transmitter unit 103 that transmits a human body detection signal output from human sensor unit 102 to the parent device via sensor slave unit connection line Ls. And. As shown in FIG. 5, the sensor body 110 of the sensor slave unit 100 is formed of a bottomed cylindrical synthetic resin molded product having a disk-like flange portion 110 a on the lower side, and a flange portion is provided in an embedded hole provided in the ceiling. The portion excluding 110a is housed in an embedded form, and is attached to the ceiling with a ceiling material sandwiched between the pair of mounting brackets 111, 111 fixed to the upper surface side of the flange portion 110a and the flange portion 110a. Here, a lens 112 for condensing visible light and heat rays is provided on the human sensor unit 101 and the brightness sensor unit 102 at the center of the lower surface of the flange unit 110a. However, since the structure of the sensor slave unit 100 including the mounting bracket 111 is conventionally known, detailed description thereof will be omitted.

  On the other hand, the sensor slave unit 200 includes a control circuit unit 201, a human sensor unit 202, a brightness sensor unit 203, a light emitting diode LD, a clock unit 204, and an LED lighting unit 205 as shown in FIG. However, since these are the same configurations as the control circuit unit 1, the human sensor unit 2, the brightness sensor unit 3, the clock unit 10, and the LED lighting unit 11 of the master unit, detailed description thereof is omitted. The sensor unit connection line Ls is connected to the control circuit unit 201, and the human sensor unit 202 detects a person in the detection area when the brightness detected by the brightness sensor unit 203 is darker than the lighting start illuminance. When the human body detection signal is output, the control circuit unit 201 transmits the human body detection signal to the parent machine via the sensor slave unit connection line Ls. Further, the control circuit unit 201 outputs the brightness sensor unit 203 when the output of the clock unit 204, that is, the current time is included in a preset midnight time zone (for example, a time zone from midnight to 4am). When the human sensor unit 202 detects a person in the detection area and outputs a human body detection signal in a state where the detected brightness is darker than the lighting start illuminance, the sensor slave unit is connected by turning on the switch S. Power is supplied to the LED lighting unit 205 via the line Ls to light up the light emitting diode LD for the operation holding time. Here, the setting of the midnight time zone in the sensor slave unit 200 can be performed from the master unit via the sensor slave unit connection line Ls. As shown in FIG. 6, the device 210 of the sensor slave device 200 is basically the same as the device 20 of the master device, but the slide button 23 of the operation mode setting unit 7, the operation holding time setting unit 9, and the brightness. The difference is that the operation knobs 24 to 26 and the door body 27 of the height setting unit 8 and the midnight time zone setting unit 13 are not provided on the front surface of the container body 210.

  Thus, in general, the light amount of the light emitting diode LD is sufficiently smaller than the light amount of the fluorescent lamp lighting fixture L. Therefore, by turning on the light emitting diode LD instead of the fluorescent lamp lighting fixture L in the midnight time zone as described above. The dazzling feeling can be relieved. Moreover, since the LED lighting unit 11 that emits light from the light emitting diode LD has a simple configuration as compared with the circuit that dimmes the fluorescent lamp illuminator L, the circuit configuration is more complicated than when the fluorescent lamp luminaire L is dimmed. It is possible to suppress an increase in cost due to conversion. In addition, since the operation mode setting unit 7 can switch between the three operation modes of the automatic mode, the off mode, and the continuous on mode, there is an advantage that the operation mode can be selected according to the situation by manual operation and the usability is improved. is there. Furthermore, since the lighting start illuminance, the operation holding time, and the midnight time zone can be adjusted by the brightness setting unit 8, the operation holding time setting unit 9, and the midnight time zone setting unit 13, the usability can be improved. In addition, when a human body detection signal is transmitted from the slave units 100 and 200 connected to the master unit via the sensor slave unit connection line Ls as described above, the human body detection signal is transmitted from the human sensor unit 2 of the master unit. Since the fluorescent lamp illuminator L and the light emitting diode LD are turned on in the same manner as in the case of the output, the detection area for detecting the presence or absence of a person can be expanded to improve usability. In addition, since the handset 200 includes the light emitting diode LD, there is also an advantage that the range illuminated in the midnight time zone can be expanded.

  By the way, in a time zone that is not included in the midnight time zone, the brightness detected by the brightness sensor unit 3 is darker than the lighting start illuminance, and the human sensor unit 2 does not detect a person in the detection region, and the human body detection signal Is not output, the control circuit unit 1 turns on the switch S to supply power to the LED lighting unit 11 to turn on the light emitting diode LD, and when the human sensor signal is output from the human sensor unit 2, the switch S is turned on. It is possible to turn off the light emitting diode LD and close the switching element 4 to turn on the fluorescent lamp luminaire L. In this way, in a situation where the surroundings are dark (for example, at night), the fluorescent lamp illuminator L is lit and illuminated brightly in a situation where a person is detected, and in a situation where no person is detected, the fluorescent lamp luminaire. By turning on the light emitting diode LD instead of L, it is possible to give a sense of security while saving energy. When a human body detection signal is output from the human sensor unit 2, the control circuit unit 1 controls the LED lighting unit 11 to turn off the light emitting diode LD by turning off the switch S, and the light amount of the light emitting diode LD. You may make it reduce.

(Embodiment 2)
A circuit block diagram of this embodiment is shown in FIG. However, since the basic configuration is the same as that of the first embodiment, common components are denoted by the same reference numerals and description thereof is omitted.

  The present embodiment includes a pair of power supply terminals T7 and T8 connected in parallel with the LED lighting unit 11, and the lighting adder 300 is connected to the pair of power supply terminals T7 and T8 via the power supply line Lp. There is a feature, and when the switch S is turned on by the control circuit unit 1, AC power is supplied from the commercial AC power supply AC to the lighting adder 300 via the power supply terminals T7 and T8.

  The lighting adder 300 includes a light-emitting diode LD that is an external lighting load and an LED lighting unit 301 that lights the light-emitting diode LD. The LED lighting unit 301 turns the light-emitting diode LD on using AC power fed through the feeder line Lp. It is configured to light up.

  As shown in FIG. 8, a window hole (not shown) that exposes the light emitting diode LD is opened in the front surface of the body 302 of the lighting adder 300, and a translucent cover 303 that covers the front surface of the body 302 including the window hole. Is attached. The translucent cover 303 is formed of a transparent synthetic resin material (for example, acrylic resin) containing a diffusing material, and diffuses light emitted from the light emitting diode LD to expand an irradiation range.

  Thus, according to the present embodiment, the lighting range in the midnight time zone can be expanded by turning on the light emitting diode LD of the lighting adder 300 simultaneously with the light emitting diode LD of the parent device.

(Embodiment 3)
A circuit block diagram of this embodiment is shown in FIG. The present embodiment is characterized in that it includes a third load terminal 9 connected to one power supply terminal T1, and the other configurations are the same as those in the first embodiment, so that the same reference numerals are used for explanation. Is omitted.

  The automatic switches A1 and A2 of the present embodiment are installed, for example, on the upper and lower floors of a staircase of a two-story dwelling unit. The power terminal T1 of the automatic switch A2 is connected to the power terminal T2 of the automatic switch A1 upstairs via the fluorescent lamp luminaire L, and the load terminal T4 and the third load of the automatic switches A1 and A2 upstairs and downstairs. The terminals 9 are connected to each other, and the load terminal T3 of the automatic switch A1 upstairs and the power supply terminal T2 of the automatic switch A2 downstairs are connected.

  That is, when a person is detected on the floor and the control circuit unit 1 of the automatic switch A1 closes the switching element 4, the commercial AC power supply AC to the power supply terminal T1 of the automatic switch A1 to the switching element 4 to the automatic switch A1 of the automatic switch A1. A closed loop of the load terminal T4 of A1, the third load terminal 9 of the automatic switch A2, the power supply terminal T1 of the automatic switch A2, the fluorescent lamp luminaire L, and the commercial AC power supply AC is formed, and the fluorescent lamp luminaire L is lit. On the other hand, when a person is detected downstairs and the control circuit unit 1 of the automatic switch A2 closes the switching element 4, the commercial AC power supply AC to the power supply terminal T1 of the automatic switch A1 to the third load terminal 9 to the automatic switch A1. A closed loop of a load terminal T4 of the automatic switch A2, an opening / closing element 4 of the automatic switch A2, a power supply terminal T1 of the automatic switch A2, a fluorescent lamp lighting device L, and a commercial AC power source AC is formed, and the fluorescent lamp lighting device L is lit.

  Thus, in the present embodiment, the fluorescent lamp illuminator L can be switched on / off from multiple places like a three-way switch using the two automatic switches A1, A2 without using the slave units 100, 200. it can.

FIG. 2 is a circuit block diagram of the first embodiment. It is the front view which closed the door body same as the above. It is the front view which removed the door body same as the above. (A) and (b) are the circuit block diagrams of the subunit | mobile_unit in the same as the above. The ceiling-mounted type subunit | mobile_unit in the same as the above is shown, (a) is a front view, (b) is a bottom view. It is a front view which shows the wall-mounted type subunit | mobile_unit in the same as the above. FIG. 6 is a circuit block diagram of a second embodiment. It is a front view of the wall-mounted type subunit | mobile_unit in the same as the above. FIG. 6 is a circuit block diagram of a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Control circuit part 2 Human sensor part 3 Brightness sensor part 4 Switch element 5 Drive part 6 DC stabilized power supply 7 Operation mode setting part 8 Brightness setting part 9 Operation holding time setting part 10 Clock part 11 LED lighting part 12 Human body Detection signal receiver 13 Midnight time zone setting unit

Claims (7)

A human body detection type automatic switch that detects the presence or absence of a person in a detection region, and turns on / off power supply from a commercial AC power supply to a fluorescent lamp luminaire according to the detection result,
From an illumination load using an individual light emitting element as a light source, a human body detection means for outputting a human body detection signal when the presence of a person in the detection region is detected, a brightness detection means for detecting ambient brightness, and a commercial AC power source Opening and closing element that opens and closes the power supply path to the fluorescent lamp lighting fixture, clock means for timing the time, operation input receiving means for receiving manual operation input, and lighting the fluorescent lamp lighting fixture by controlling the opening and closing of the opening and closing element And a control means for controlling turning on / off of the lighting load while turning off the light,
In a situation where the brightness detected by the brightness detection means is brighter than a predetermined lighting start illuminance, the control means does not close the switching element and turn on the illumination load even if a human body detection signal is output from the human body detection means, When a human body detection signal is output from the human body detection means in a situation where the brightness detected by the brightness detection means is darker than the lighting start illuminance and the current time measured by the clock means is not included in a predetermined midnight time zone The lighting device is turned on by closing the switching element for a predetermined operation holding time and the lighting load is not turned on, and the brightness detected by the brightness detecting means is darker than the lighting start illuminance and timed by the clock means. In the situation where the present time is included in the midnight time zone, when the human body detection signal is output from the human body detection means, the lighting load is turned on for the operation holding time and the switching element is The operation mode for controlling the switching element and the illumination load based on the detection result of the human body detection means, the brightness detected by the brightness detection means, and the time measured by the clock means, The operation input received by the operation input receiving means is one of an operation mode in which the switching element is closed, an operation mode in which the lighting load is forcibly turned on, or an operation mode in which the switching element is forcibly opened and the lighting load is turned off. A human body detection type automatic switch characterized in that it can be switched alternatively.   2. The human body detection according to claim 1, wherein the control means can adjust at least one of the lighting start illuminance, the operation holding time, and the midnight time period according to an operation input received by the operation input receiving means. Type automatic switch.   The control means outputs the human body detection signal from the human body detection means in a situation where the brightness detected by the brightness detection means is darker than the lighting start illuminance and the current time measured by the clock means is not included in the predetermined midnight time zone. 3. The human body detection type automatic switch according to claim 1, wherein the illumination load is turned on when the switch is not turned on.   A receiving means for receiving a human body detection signal transmitted from the outside via the signal line, and the control means when the human body detection signal is output from the human body detection means or when the human body detection signal is received by the receiving means; 4. The human body detection type automatic switch according to claim 1, wherein the opening / closing element is closed or a lighting load is turned on.   A sensor slave unit in which a human body detection means for outputting a human body detection signal when detecting the presence of a person in the detection area is housed in a vessel arranged on the ceiling is connected to the reception means via a signal line. 5. The human body detection type automatic switch according to claim 4, wherein:   When an external lighting load using an individual light emitting element as a light source is connected via a power supply line, the control means supplies power to the external lighting load via the power supply line when turning on the lighting load and turns off the lighting load. 6. The human body detection type automatic switch according to claim 1, wherein power supply to the external illumination load is stopped.   A pair of power supply terminals to which a commercial AC power supply is connected; a first load terminal connected to one power supply terminal via an opening / closing element; a second load terminal connected to the other power supply terminal; The human body detection type automatic switch according to claim 1, further comprising: a third load terminal connected to one power supply terminal to which the load terminal is connected.

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