JPH0224701A - Drive control device for electric apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drive control device for electrical equipment such as home appliances.

[Prior Art] Electrical appliances such as lighting equipment, air conditioners, irons, etc. are controlled on/off by manual switches. In addition, lighting equipment, air conditioners, etc. are automatically turned on/off based on the detection results of environmental sensors such as illuminance, temperature, humidity, etc. of the controlled area.

[Problems to be Solved by the Invention] However, the above-mentioned conventional electrical equipment has the following disadvantages.

■Forgetting to turn off the manual switch may cause power loss or fire (iron, etc.).

■If you are absent for a long time, the system may automatically start operating based on the detection results of the environmental sensor even though there are no people in the control area, which may lead to power loss or fire (central fan heater, etc.).

An object of the present invention is to automatically control and avoid unnecessary power supply to electrical equipment, thereby preventing power loss and fire.

[Means for Solving the Problems] The present invention provides a human body detection system that detects the presence of a person in a control target area and outputs a human body detection signal in a drive control device for electrical equipment that controls on/off the electrical equipment. and a control means for opening a power supply circuit to the electrical equipment on the condition that the human body detection means does not continuously output a human body detection signal for a certain period of time or more.

[Function] According to the present invention, if no person exists in the controlled area for a predetermined period of time or more, the control means operates based on the detection result of the human body detection means, and the control means operates to supply power to the electrical equipment. The circuit opens automatically.

Therefore, if you forget to turn off the manual switch for electrical equipment and are away for a long time, the power supply to the electrical equipment may be stopped even though the manual switch is in the on state, resulting in power loss or fire. I never see it.

Furthermore, even if the environmental sensor detects conditions for starting and continuing the operation of electrical equipment during a long period of absence, power is not supplied to the electrical equipment, and no power loss or fire occurs.

[Example] Fig. 1 is a schematic diagram showing a first embodiment of the present invention, Fig. 2 is a schematic diagram showing a second embodiment of the present invention, and Fig. 3 is a schematic diagram showing a third embodiment of the present invention.
FIG. 4 is a schematic diagram showing an example of an air conditioner to which the present invention is applied, and FIG. 5 is a schematic diagram showing an example of a switch box used in implementing the present invention.

The first embodiment shown in FIG. 1 is an example in which the present invention is applied to a lighting fixture 10, where 11 is an illuminance sensor switch attached to the lighting fixture 10, 12 is a manual switch, 13 is an electromagnetic relay switch, and 14 is a power source. .

The illuminance sensor switch 11 includes, for example, a cadmium sulfide optical sensor, and is automatically turned on when the illuminance of the area to be controlled is low or when the illuminance is low enough to require illumination. That is, the manual switch 12 interposed in the power supply circuit of the lighting fixture 10,
If the illuminance sensor switch 11 is turned on while both the electromagnetic relay switches 13 are turned on, the lighting fixture 10 will always be turned on automatically.

The electromagnetic relay switch 13 is turned on/off by a human body detection sensor 15 (human body detection means), a timer 16 (control means), and a relay driver (transistor) 17. The human body detection sensor 15 is, for example, a far infrared sensor, detects when a person is present in the lighting control target area, and outputs an H level human body detection signal. The timer 16 controls the lighting equipment 10 on the condition that the human body detection sensor 15 does not output a human body detection signal for a certain period of time or more.
It outputs an L-level relay-off signal to open the power supply circuit to the circuit, and outputs an H-level relay-on signal during normal times other than (2) above. Relay driver 17 turns off relay switch 13 in response to a relay off signal from timer 16, and turns on relay switch 13 in response to a relay on signal from timer 16.

According to the first embodiment, when no person exists in the lighting control target area for a predetermined period of time or more, the timer 16 operates based on the detection result of the human body detection sensor 15, and the lighting equipment 10 The relay switch 13 provided in the power supply circuit is automatically opened. Therefore, even if the illuminance sensor switch 11 detects the lighting start and continuation conditions of the lighting fixture 10 and turns it on at night when the user forgets to turn off the manual switch 12 and is away for a long time, the above-mentioned relay switch 13 turns off. Without supplying power to the lighting equipment 10,
No power loss occurs.

The second embodiment shown in FIG. 2 is a partially modified example of the first embodiment, in which a flip-flop circuit 21 is provided, a manual switch 12 is connected to the C terminal of the flip-flop circuit 21, and the flip-flop circuit 21 is connected to the C terminal of the flip-flop circuit 21. Relay driver 17 to C terminal
, and a timer 16 is connected to the R terminal of the flip-flop circuit 21.

The timer 16 of the second embodiment outputs an L-level layoff signal to open the power supply circuit to the lighting equipment 10 on the condition that the human body detection sensor 15 does not output a human body detection signal for a certain period of time or more. R of flip-flop circuit 21
As a result, the relay driver 17 turns off the relay switch 13. Therefore, even if the illuminance sensor switch 11 detects the lighting start and continuation conditions of the lighting equipment 10 and turns on the lighting equipment 10 at night or the like when you forget to turn off the manual switch 12 and are away for a long time, the above-mentioned light switch 1
3 is turned off, power is not supplied to the lighting fixture 10, and no power loss occurs.

The third embodiment shown in FIG. 3 is an example in which a plurality of electrical devices 30A to 30C installed in a home are centrally controlled according to the present invention.

The arithmetic circuit 31 includes a human body detection sensor 32 and a temperature sensor 33.
, the detection results of environmental sensors such as the humidity sensor 34 and the illuminance sensor 35, and the on/off signal of the manual switch 36, the relay drivers 37A to 37A of each of the electrical devices 30A to 30C
By outputting a relay on/off signal to 37C and, as a result, turning on/off the relay switches 38A to 38C provided in the power supply circuits of each of the electrical devices 30A to 30C, Perform desired drive control.

However, in this third embodiment, a timer 39 (control means) is provided. The timer 39 outputs a level lay-off signal to open the power supply circuit to each of the electrical devices 30A to 30C, on the condition that the human body detection sensor 32 does not output a human body detection signal for a certain period of time or more. ■Outputs an H-level relay-on signal during normal times other than the above (■). At this time, the relay on/off signal of timer 39,
The aforementioned relay on/off signal of the arithmetic circuit 31 is supplied to the corresponding relay drivers 37A to 37C via AND circuits 40A to 40C.

According to the third embodiment, if there is no person in the control target area in the house for a predetermined period of time or more, the timer 39 is activated based on the detection result of the human body detection sensor 32, and each electric Relay switches 38A to 38C provided in the power supply circuits of devices 30A to 30C are automatically opened. Therefore, when you are away for a long time, each environmental sensor 32~
35 detects the operation start and continuation conditions of each of the electrical devices 30A to 30C, or even if the manual switch 36 forgets to turn off, the power supply to each of the electrical devices 30A to 30C is turned off by turning off the relay switches 38A to 38C. This prevents power loss and fire from occurring.

Note that FIG. 4 shows an example in which an air conditioner 50 is provided with a switch box 51 for implementing the present invention, where 52 is a manual switch and 53 is a human body detection sensor.

FIG. 5 also shows another switch box 61 for implementing the present invention, with manual switches 82A to 62C;
63 is a human body detection sensor.

In the implementation of the present invention, the electrical equipment is not limited to one that is controlled on/off by a manual switch or an environmental sensor, but may be one that is turned on only during a predetermined time period by a timer switch.

[Effects of the Invention] As described above, according to the present invention, unnecessary power supply to electrical equipment can be automatically avoided and power loss and fire can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing a first embodiment of the present invention, FIG. 2 is a schematic diagram showing a second embodiment of the present invention, and FIG. 3 is a schematic diagram showing a third embodiment of the present invention.
FIG. 4 is a schematic diagram showing an example of an air conditioner to which the present invention is applied, and FIG. 5 is a schematic diagram showing an example of a switch box used in implementing the present invention. 10... Lighting equipment, 13... Electromagnetic relay switch, 15... Human body detection sensor (human body detection means), 16...
・Timer (control means), 30A to 30C... electrical equipment, 32... human body detection sensor (human body detection means), 39...
-Timer (control means). Patent applicant Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru Figure 1 Figure 2 Figure 4 Z Figure 5

Claims (1)

[Claims] (1) In a drive control device for electrical equipment that controls the on/off of electrical equipment, there is a human body detection means that detects the presence of a person in a control target area and outputs a human body detection signal, and a human body detection means that detects the presence of a person in a controlled area and outputs a human body detection signal. 1. A drive control device for electrical equipment, comprising a control means that opens a power supply circuit to the electrical equipment on the condition that a human body detection signal is not continuously output.