JPH04169095A - Controller of interior apparatus - Google Patents

Abstract

PURPOSE:To automatically turn an interior apparatus such as lighting ON/OFF by providing a sensor for detecting passing people, and a counter for counting the number of people remained in a room based on the detection signal of this sensor, and by stopping the operation of the apparatus when the number of people remained is zero, while operating the apparatus when the number is one or more. CONSTITUTION:A first sensor 1 and a second sensor 2 are provided at two points, on the point closer to the outside of a room and the one closer to interior, at an exit/entrance 3, and an infrared transmission sensor is adopted as the sensors 1, 2, for detecting the number of people who comes in and who comes out of the room. The outputs of the sensors 1, 2 are input to a controller. At an initial state, there is no people, and the value of the counter is zero, and when one person enters the room, plus one is added to the value of the counter 17, and when one person comes out of the room, minus one is added thereto. When the value of the counter inside is other than zero, light is turned on, and when the value is zero, the light is turned out. The interior apparatus such as lighting is automatically operated, and even in the night, the comfortable and safe using of the room can thus be achieved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a control device for indoor appliances such as lighting, and in particular detects the presence or absence of people in the room and automatically turns on and off indoor appliances such as lighting. The present invention relates to a control device for indoor appliances.

[Prior Art] When indoor lighting is turned on and off manually by a person, it is possible to forget to turn off the lighting. Especially when it comes to public indoor spaces, lights often remain on in unoccupied spaces without anyone turning them off, resulting in wasted energy.

There is also a lighting control device that has a switch mechanism on the door, but this has caused problems such as forgetting to close the door and causing the door to not turn on.

Therefore, devices are used in which a human body sensor is installed indoors and the lighting is automatically turned on when a human body is detected indoors.

[Problems to be Solved by the Invention] In the above-mentioned lighting control device, the lights do not turn on unless a person actually enters the room. The problem was that it was necessary.

[Means for Solving the Problems] The indoor appliance control device of the present invention is a device that controls the operation of an indoor appliance having an entrance/exit depending on the presence or absence of personnel in the room. and a counter that counts the number of people remaining in the room based on the detection signal of this sensor, and stops the operation of the equipment when the number of people remaining in the room is O. , the instrument is activated when one or more times.

[Function] In the indoor appliance control device of the present invention, when controlling lighting as an indoor appliance, for example, there is no one in the initial state and the counter value is O. When entering the room, +1 is added to the counter value, and when leaving the room, -1 is added to the counter value. If the internal counter value is other than O, the light is turned on. Moreover, when it is O, the illumination is turned off.

As described above, according to the present invention, indoor appliances such as lighting can be automatically turned on and off depending on the presence or absence of personnel, thereby saving power. Furthermore, since the lights are turned on when a person simply passes through the entrance, the lights can be turned on without having to go deep into a dark room. Furthermore, even if the entrance/exit door is left open, it can be controlled reliably.

[Example] Examples will be described below with reference to the drawings.

In FIG. 1, sanitary equipment such as a urinal 5, a Western-style toilet 6, and a washbasin 7 are installed in a toilet room 4 having an entrance/exit 3. 3a is a door.

The entrance 3 is provided with a first sensor 1 and a second sensor 2 at two locations, one near the outdoors and one near the room. In this embodiment, infrared transmission type sensors are used as these sensors 1.2 to detect entry and exit from the room. However, as long as entry and exit can be detected, one sensor is sufficient. Further, as long as directional pressure detection can be performed, it is not necessary to use infrared rays or to be of a transmission type.

Although not shown, the output of the sensor 1.2 is input to a control device, and this control device turns on and off the lighting fixtures in the toilet room 4.

A circuit diagram of this control device is shown in FIG.

The outputs of the sensors 1.2 are each input to a monostable multivibrator 11.12. The output of the monostable multivibrator 11 is input to the NAND circuit 13.14,
The output of monostable multivibrator 12 is NAND circuit 1
4.15, and the output of the NAND circuit 14 is input to the NAND circuit 13.15 via the single pulse generation circuit 16.
has been entered. The outputs of the NAND circuits 13 and 15 are input to the counter 17, respectively.

As shown in Fig. 3, when a human body enters the room from outside, the output of sensor 1 first becomes H, and after a little delay, the output of sensor 2 becomes H. The output becomes H for a predetermined time, and after a slight delay, the output of the monostable multivibrator 12 becomes H for a predetermined time. Monostable multi-by break 11 and 12 outputs are both H
When , the pressure in the NAND circuit 14 becomes L, and L
When the signal returns from H to H, a single pulse of H is output from the single pulse generation circuit 16. In response to the H single pulse of the single pulse generation circuit 16, NAN
The D circuit 15 outputs an L single pulse. The counter 17 counts this single pulse and increments the count value by one.

When a human body moves from indoors to outdoors, the output of sensor 2 first becomes H, and a little later the output of sensor 1 becomes H. Accordingly, the output of monostable multivibrator 12 becomes H for a predetermined time. Then, after a slight delay, the output of the monostable multi-by-break 11 becomes H for a predetermined period of time. When the outputs of monostable multivibrator 11 and 12 are both H,
The output of the NAND circuit 14 becomes L, and when it returns from L to H, a single pulse of H is output to the single pulse generation circuit 1.
It is output from 6. In response to the H single pulse of the single pulse generation circuit 16, the NAND circuit 15 goes low.
Outputs a single pulse of The counter 17 counts this single pulse and decrements the count value by one.

(By adjusting the timer time of monostable multivibrator 11 and 12, the signal will not be output unless the next signal is received within the timer operation time, and even if only one side receives the signal, it will be automatically reset.) (This is the case.) In this way, the count value fluctuates as people enter and leave the room, and the stored count value matches the number of people remaining in the room.

When this count value reaches 0, the illumination is turned off by a signal from the decoder 18. Further, when the count value becomes 1 or more, the illumination is turned on by a signal from the decoder 18.

In this way, according to this embodiment, it is possible to automatically control the lighting on and off, thereby saving power. Furthermore, since the lights are turned on when a person simply passes through the entrance, the lights can be turned on without having to go deep into a dark room. Furthermore, even if the entrance/exit door is left open, it can be controlled reliably.

In the present invention, the entry pulses of the control device (the number of output pulses of the NAND circuit 13) are counted and
Even one month is fine. ) It is also possible to calculate the total number of users of the room and manage the frequency of use.

In the present invention, for brightness where lighting is not needed, such as in a sunny daytime bathroom, the lighting may be turned off even if the internal counter value is other than O using the illuminance detection sensor.

FIG. 4 is a front view of a switch panel 20 suitably used in such a control device, and an illuminance sensor 21 is provided on the panel 2o. 22 is a reset switch, and by pressing this, the integrated count value returns to 0. In this embodiment, the reset is activated when a predetermined period of time (for example, 10 seconds) has elapsed since the reset switch 21 was pressed, and the entry and exit of personnel within this predetermined period of time is not counted.

23 is a display device such as a liquid crystal display indicating the total number of users.

The present invention can save energy and prevent malfunctions of electrical equipment by controlling not only indoor lighting but also various electrical equipment in the room (music, automatic cleaning equipment, etc.). In addition, to increase the reliability of the system,
Various sequences can be created by combining with other human body detection sensors.

[Effects] As described above, according to the indoor appliance control device of the present invention, indoor appliances such as lighting can be automatically operated. When the present invention is used as a lighting control device, power saving can be achieved, and The lights are turned on immediately when a person enters the room, and the room can be used comfortably and safely even at night.

[Brief explanation of the drawings] Fig. 1 is a plan view of a toilet room using a control device according to an embodiment, Fig. 2 is a block diagram of the control device, Fig. 3 is a time chart of the same, and Fig. 4 is a switch panel. FIG. 1.2...Sensor, 3...Entrance/exit, 4...Toilet room, 20...Switch panel. Patent applicant Inax Co., Ltd.

Claims (1)

[Claims] (1) In a device that controls the operation of appliances in a room having an entrance/exit depending on the presence or absence of personnel in the room, a sensor detects personnel passing through the entrance in the exit direction and personnel passing in the entrance direction; and a counter for counting the number of people remaining in the room based on the detection signal of the room, and the equipment is stopped operating when the number of remaining people is 0, and is activated when the number of people remaining is 1 or more. Instrument control device.