JP4656631B2 - Lighting device with human sensor - Google Patents

Description

  The present invention makes it possible to use a light bulb-type fluorescent lamp with low power consumption as an illumination load of a lighting device with a human sensor having a sensor lighting mode and a continuous lighting mode.

  2. Description of the Related Art Conventionally, there is a human sensor-equipped illuminating device having a sensor lighting mode and a continuous lighting mode for turning on and off an incandescent light bulb as a lighting load in a room such as an inner entrance or a corridor. As an example of this illumination device with a human sensor, when a block diagram of an apparatus with one incandescent light bulb is shown in FIG. 3, a human sensor (reference numeral 3) for detecting the presence of a human body, When the sensor detects the presence of a person, the lighting load is turned on via the opening / closing part (reference numeral 5) by the short-time timer, and the lighting load is turned off via the opening / closing part. Lights up and the lighting control unit (symbol 4) has a continuous lighting mode that automatically switches to the sensor lighting mode after the time limit of the long time timer expires, the start time mode setting by the start time mode setting switch, and the time limit of the long time timer expires Later, a mode setting switching control unit (reference numeral 2) that automatically switches to the sensor lighting mode and alternately switches between the two lighting modes by the wall switch operation, and the DC constant voltage power supply are quickly turned on by the “switching” operation of the wall switch. And the system to lower pressure drop, consists of a power supply unit having a system that gently voltage drop (reference numeral 1). The open / close unit uses a triac as a switch element for opening and closing the commercial power supply. Further, the power supply unit has a function of reducing current consumption before detecting the presence of a person in the sensor lighting mode.

The basic operation outline is as follows. When lighting is required and the commercial power is turned on by the wall switch “contact” operation, the system is activated in the designated mode of the activation mode setting switch. Here, the designated mode will be described as a continuous lighting mode. In the continuous lighting mode, the lighting load is turned on via the opening / closing part and a timer is started for a long time. Since the long time timer is reset every time the short time timer is activated, the long time timer expires if there is no person beyond the time limit of the long time timer, which automatically switches to the sensor lighting mode and turns off. . In the sensor lighting mode, when the presence sensor detects the presence of a person, a short time timer is started, the lighting load is turned on via the opening / closing unit, and the light is turned off when the short time timer expires. When the presence sensor detects the presence of a person during lighting, the timer is reset for a short time. Switching between the two lighting modes is performed by utilizing the fact that the output of the Q and Q bars are reversed when the CLOCK terminal of the T-type flip is inverted from L level to H level. Automatic switching is performed when the timer expires for a long time, and alternate switching is performed when a potential difference occurs between the system in which the voltage gradually drops by the wall switch “off” operation and the system in which the voltage drops quickly. The automatic switching prevents a problem that the light is turned on for a long time when the mode is changed to the continuous lighting mode due to a power failure.
Japanese Patent Application No. 2003-365821 Japanese Patent Application No. 2004-061624

  The problem to be solved is that a bulb-type fluorescent lamp with low power consumption cannot be used for the lighting load.

  The present invention is characterized in that a bulb-type fluorescent lamp can be used by using a relay as a switch element for opening and closing a commercial power supply.

  The illumination device with a human sensor according to the present invention uses a relay as a switch element for opening and closing a commercial power supply, and can use a light bulb-type fluorescent lamp with low power consumption. Since it has been turned on for a long time when it has shifted to, and the burden of power consumption with respect to it has decreased, the long-time timer function has been deleted and the device has been simplified.

  Compared to incandescent light bulbs of the same brightness, light bulb-type fluorescent lamps have a low power consumption of about 1/4 to about 1/5, a lifespan of about 6 times longer, less heat generation, and the same equipment However, it has the disadvantage that it is dark immediately after lighting, and that the life is shortened in an environment where lighting is frequently turned on and off. For this reason, taking advantage of the characteristics of the bulb-type fluorescent lamp and the incandescent bulb, a lighting sensor-equipped illuminating device using the bulb-type fluorescent lamp as the illumination load in the continuous lighting mode and the incandescent bulb as the illumination load in the sensor lighting mode. In addition, if the sensor lighting mode is set during sleep at midnight when the lighting frequency is low, the darkness immediately after lighting will prevent illusion and the disadvantage of shortening the life will be alleviated. A lighting sensor-equipped illuminating device using a bulb-type fluorescent lamp as an illumination load.

  FIG. 1 is a block diagram and circuit diagram of an embodiment of a lighting device with a human sensor according to claim 1, in which a power source terminal (reference numeral T <b> 1) to which a commercial power source is connected and an illumination load 1 are connected. A first output terminal (symbol T2) and a second output terminal (symbol T3) to which the illumination load 2 is connected are provided. The commercial power source connected to T1 passes through the wall switch, and the apparatus is controlled by the wall switch operation. Next, the circuit of each part will be described.

  The power supply unit (reference numeral 1) rectifies the commercial power supply in the rectifier circuit and outputs a stabilized DC constant voltage power supply with three systems of (+) H power supply, (+) power supply, and (+) C power supply. The (+) H power supply is a high voltage system and is supplied to the relay winding and phototriac coupler of the switching unit (reference numeral 5). (+) The C power supply uses D2 and C4 to make a power supply that slowly drops when the wall switch is turned off. The IC2 and related circuits of the mode setting switching control unit (reference numeral 2), and the human sensor (reference numeral 3) ). (+) The power supply is a power supply that drops quickly when the wall switch is turned off, and is supplied to other circuits. Furthermore, it has a function of reducing current consumption before detecting the presence of a person in the sensor lighting mode.

  The mode setting switching control unit includes a T-type flip-flop IC2 (for example, a D-type flip-flop IC TC4013B is used as a T-type flip-flop) and related circuits. When the power is turned on by the “contact” operation of the wall switch at start-up, a signal that reverses the polarity from H level to L level for a short time at C6 and R18 is applied to the SET1 terminal of IC2, and the ground L level signal is applied to the RESET1 terminal. As a result, the Q1 terminal outputs H level and the Q1 bar terminal outputs L level. This output is supplied to the illumination control unit (reference numeral 4) via the startup mode setting switch to form a sensor lighting mode and a continuous lighting mode. The startup mode in FIG. 1 is a continuous lighting mode. To switch the main lighting to sensor lighting mode, set the startup mode setting switch to sensor.

  In the continuous lighting mode, the H level output from the mode setting switching control unit turns the Tr5 base to the H level via R13, and the Tr5 is turned on. As a result, the relay of the opening / closing unit operates and the bulb-type fluorescent lamp of the illumination load 2 is lit. Further, the base of Tr1 is set to H level via D4 and R5, and Tr1 and Tr2 are turned ON. When Tr2 is turned ON, power is supplied through R2 in addition to R1, and the (+) power supply and (+) C power supply are stabilized. This lighting continues until the lighting mode is alternately switched by the wall switch “disconnect” operation or until the power is turned off by the wall switch “disconnect” operation. Further, the L level output from the mode setting switching control unit sets the base of Tr4 to L level via D6, and Tr4 is turned OFF. Thereby, even if the human sensor detects the presence of a person, the illumination load 1 is not turned on.

  Switching between the two lighting modes is performed by inverting the output of the Q1 terminal and the Q1 bar terminal when the CLOCK1 terminal of the IC 2 is switched from the L level to the H level by the “connect / disconnect” operation of the wall switch. Of the wall switch “connect / disconnect” operation, if the “+” C power supply drops slowly during the previous “disconnect” operation, and the (+) power supply voltage drops quickly, the base of Tr6 becomes L level and Tr6 is Turn off. As a result, the CLOCK1 terminal of IC2 is switched from the L level to the H level, and the outputs of the Q1 terminal and the Q1 bar terminal are inverted.

  (+) If the “contact” operation at the subsequent stage is performed within a time period during which the output of IC2 can be held at the voltage of the C power source, the lighting mode after inversion starts and the two lighting modes are switched alternately. The time interval from the “disconnect” operation to the “contact” operation depends on the capacity of C4, the current consumption of the related circuit, the power supply characteristics of the IC 2, etc., but can be made within a practical range (for example, about 1 to 5 seconds). If there is no “contact” operation at the latter stage and the voltage of the (+) C power supply drops and the output of IC2 cannot be maintained, the power is turned off, and the next “contact” operation is turned on at the time of startup.

  In the sensor lighting mode, the cathode of D6 is set to H level to release the turning off of Tr4, and Tr5 is turned off to set the base of Tr5 to L level. The presence of a person is detected by a human sensor (for example, NaPiOn) including a pyroelectric infrared sensor, an amplifier circuit, and a comparator output circuit. The pyroelectric infrared sensor outputs a detection signal with an amplitude corresponding to the change in the received heat dose, and when the output of the detection signal exceeds a specified threshold value, the human sensor detects the pulsed detection signal at the H level. Output. The (+) C power supply of the human sensor continuously supplies power even when the wall switch “connect / disconnect” is operated, preventing an unstable detection signal from being output when the power is turned on.

  The human sensor cannot obtain a detection signal if there is no movement even if a person is present in the field of view and the heat dose does not change. That is, if the illumination load is turned on only when a detection signal is obtained, when the person stops moving, the illumination load is turned off even if the person is in the field of view of the human sensor.

  Therefore, in the illumination control unit, Tr3 is turned on when a detection signal of H level is received from the human sensor via the base of Tr3 via R7. As a result, the collector of Tr3 becomes L level, the trigger bar terminal of the short-time timer IC1 (for example, LMC555) is set to L level via D5, C5 is discharged, and the OutPut terminal is set to H level. The discharge of C5 resets the time limit of IC1. The H level of the OutPut terminal sets the base of Tr4 to H level via R11, and Tr4 is turned ON. As a result, the phototriac coupler and triac of the opening / closing unit are turned on, and the incandescent bulb of the illumination load 1 is turned on. Further, the base of Tr1 is set to H level via D3 and R5, and Tr1 and Tr2 are turned ON. When Tr2 is turned ON, power is supplied through R2 in addition to R1, and the (+) power supply and (+) C power supply are stabilized.

The calculation formula for the time limit of IC1 is T = 1.1 RC seconds, RC is (R10 + VR) C5, and VR allows the time limit to be adjusted within a range of about 1 minute to about 3 minutes. Without the detection signal of the human sensor, the collector of Tr3 becomes H level and IC1 starts the time limit. C5 starts charging with the (+) power supply via R10 + VR, and the time expires when the potential of the Thresh terminal connected to the Trigger bar terminal of IC1 rises to 2/3 of the V + terminal voltage of IC1 with the passage of time. The OutPut terminal switches to the L level and turns off the lighting load 1 through the opening / closing part. Furthermore, the Tr1 base is also at the L level, and Tr1 and
Tr2 is turned OFF. The power supply via R2 is cut off by turning off Tr2, and the (+) power supply and (+) C power supply are held only via R1. This reduces current consumption before detecting the presence of a person in the sensor lighting mode.

  The open / close unit uses a triac as a switch element that opens and closes the commercial power supply of the illumination load 1 corresponding to the incandescent bulb. A relay can be used, but the triac operates silently and is effective in maintaining silence at night. Since a general light bulb-type fluorescent lamp does not light normally in a triac, a relay is used as a switch element for opening and closing the commercial power source of the illumination load 2 corresponding to the light bulb-type fluorescent lamp. By making the lighting load compatible with the two lighting modes, the characteristics of the individual lighting loads are utilized, and the current lighting mode can be easily confirmed.

  FIG. 2 is a block diagram and circuit diagram of an embodiment of a lighting device with a human sensor according to claim 2, and FIG. 2 is different from FIG. 1 in the lighting load common to the continuous lighting mode and the sensor lighting mode. The output terminal (symbol T2). Next, changes will be described.

  The Tr5 collector that controls the open / close part in the continuous lighting mode and the Tr4 collector that controls the open / close part in the sensor lighting mode are connected to the relay winding of the open / close part, and the lighting contact corresponding to the bulb-type fluorescent lamp is connected by the relay contact. Lights off. Furthermore, an LED is inserted between the Tr4 emitter and the ground. Confirmation of the sensor lighting mode is performed by operating the relay, the dark lighting immediately after lighting, and the lighting of the LED lamp.

  When lighting is required in a room such as an entrance or a corridor, this device starts in the sensor lighting mode or continuous lighting mode according to the specification of the startup mode setting switch by the wall switch “contact” operation. Generally, it starts in the continuous lighting mode, and switches to the sensor lighting mode when sleeping. In the continuous lighting mode, a light bulb-type fluorescent lamp with low power consumption is turned on, and the sensor is switched to the sensor lighting mode by a wall switch “connection / disconnection” operation at bedtime. In the sensor lighting mode, when the presence sensor detects the presence of a person, the incandescent light bulb (bulb-shaped fluorescent lamp in claim 2) is turned on and turned off after the short-time timer expires. When the lighting is no longer necessary, the power is turned off by the wall switch “off” operation. Since it is such a device, it can be used as an effective device for economy and convenience, together with prevention of forgetting to turn off lighting.

It is a block diagram and circuit diagram relating to claim 1. Example 1 It is a block diagram and circuit diagram relating to claim 2. (Example 2) It is a block diagram which shows the structure of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Power supply part 2 Mode setting switching control part 3 Human sensor 4 Illumination control part 5 Opening / closing part
T1 power supply terminal
T2 First output (output) terminal
T3 Second output terminal

Claims (2)

A human sensor that detects the presence of a person by detecting heat rays radiated from the human body, and when the human sensor detects the presence of a person, the illumination load 1 is turned on by a short-time timer linked to the human sensor. Using a sensor lighting mode that turns off after the time timer expires, a lighting control unit that has a continuous lighting mode that turns on the lighting load 2 continuously, and a phototriac coupler and triac that are controlled by the lighting control unit and that are compatible with the lighting load 1. With an open / close circuit and an open / close circuit that uses a relay that supports lighting load 2, an open / close unit that turns off and off the two lighting loads, and an external wall switch “contact” operation and start-up mode setting switch at the start of lighting, Select one of two lighting modes and light up. After that, the mode setting switching control unit that alternately switches between the two lighting modes by the wall switch “connect / disconnect” operation, the system that the DC constant voltage power supply supplies to the open / close unit, and the wall switch “disconnect” operation promptly A lighting device with a human sensor, comprising a power supply unit having a system that descends and a system that slowly drops voltage. A human sensor that detects the presence of a person by detecting the heat rays radiated from the human body, and when the human sensor detects the presence of a person, the lighting load is turned on by a short-time timer that is linked to the human sensor. A sensor lighting mode that turns off after the timer expires, a lighting control unit that has a continuous lighting mode that turns on the lighting load continuously, and an opening and closing unit that is controlled by the lighting control unit and that turns on and off the lighting load by a switching circuit using a relay At the start of lighting, one of the two lighting modes is selected and lit by an external wall switch “contact” operation and a startup mode setting switch. After that, the mode setting switching control unit that alternately switches between the two lighting modes by the wall switch “connect / disconnect” operation, the system that the DC constant voltage power supply supplies to the open / close unit, and the wall switch “disconnect” operation promptly A lighting device with a human sensor, comprising a power supply unit having a system that descends and a system that slowly drops voltage.