JP3098087B2 - Control device for air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for an air conditioner having an on-timer function for starting operation at a set time every day.

[0002]

2. Description of the Related Art Conventionally, in this type of air conditioner,
As shown in the flowchart of FIG. 4, once the time of the on-timer is set, the operation starts every day at the same time and the operation continues until the operation switch is turned off. It was possible to heat the room in advance when getting up in the morning without setting.

[0003]

However, when leaving the house for several days, it is necessary to cancel the entering timer and then go out, which is very troublesome. If the user forgets to cancel the on-timer and goes out, the air conditioner will continue to operate in an unattended home, and not only will electric energy be wasted, but also the reliability of the air conditioner that can be used by the user. There was a problem that the sexual period was meaninglessly shortened.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and minimizes operation in a state where no person is present to prevent wasteful use of electric energy. It is an object of the present invention to provide an air conditioner control device with improved operability.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a control device for an air conditioner according to the present invention includes an on-timer for starting operation every day at a preset time, and detecting a person's occupancy. After the operation is started by the entering timer means, the decision time determining means determines the time based on the time from the start time of the past several times of the entering timer operation until the presence of a person is detected by the human detecting means. The apparatus is provided with means for stopping the operation when there is no output from the human detecting means within the time period for determining whether or not there is output from the human detecting means. In addition, every day at a preset time, on-time timer means for starting operation, human detection means for detecting the presence of a person in the room, and presence / absence of output from the human detection means after the start of operation by the on-time timer means. It is provided with a means for stopping the operation when there is no output in time, and an on-timer reset means for canceling the operation setting state of the on-timer. Further, when the entering timer is in the canceling state, when the person detecting means detects the presence of a person, the entering timer setting means resets the entering timer setting state to the state before canceling.

[0006]

[0007]

According to the present invention, if there is no output from the human detection means even after the determination time has elapsed after the start of the operation by the on-timer, the operation is stopped and the on-timer setting state is canceled. After that, if the human detection means detects the presence of a person, the entry timer setting is reset to the state before cancellation,
Start driving every day from the next set time. In addition, in order to avoid a situation in which the determination time is shortened due to a change in a life pattern and the vehicle is stopped early, the human detection unit determines the determination time from the operation start time of the past several times of the on-timer. It is determined based on the time until the first output (detecting a person).

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram of a control device for controlling an air conditioner in one embodiment of the present invention, and FIG. 2 is a configuration diagram of an air conditioner using the control device.

In FIG. 2, the air conditioner includes a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, a pressure reducing device 4, and an indoor heat exchanger 5.
And an outdoor blower 6 that blows air to the indoor heat exchanger 5, an outdoor blower 7 that blows air to the outdoor heat exchanger 3, a control device 8, and a remote controller 9. Remote controller 9 is a run / stop switch
10, Time setting switch 11 and timer set switch 12
have.

In FIG. 1, the control device 8 includes an on-timer means 13, an on-timer reset means 14 for resetting the on-timer means 13, an on-timer setting means 15 for setting the on-timer means 13, and whether or not a person is present. Detection means 16 for detecting the air conditioner, operation / stop means for operating / stopping the air conditioner
17, operated by the on-timer means 13 and the human detection means 16, the elapsed time calculation / storage means 18 for calculating the time from the operation start time to the first detection of a person, the average for calculating the average elapsed time in the past several days Elapsed time calculation means 19, determination time determination means for determining a determination time by multiplying the average elapsed time of the past several days obtained by the average elapsed time calculation means 19 by a safety factor
20, a control unit 21 composed of, for example, a microcomputer for controlling the operation / stop means 17 based on the outputs from the input timer means 13, the human detection means 16, and the determination time determination means 21.

The operation of the above configuration will be described with reference to a flowchart showing a control procedure shown in FIG. The user operates the time setting switch 11 of the remote controller 9 to set the time at which the operation is to be started, and turns on the ON timer set switch 12. The ON timer set switch 12 is turned on (step 31), and when the set time is reached (step 32), the operation of the compressor 1, the indoor blower 6, and the outdoor blower 7 is started every day (step 33). During this operation, time counting from the start of operation is performed (step 34), and it is determined whether or not there is an output from the human detecting means 16 composed of, for example, a pyroelectric sensor (a person is present) within the determination time (step 35). If there is an output, the operation is continued until the operation is stopped by the operation / stop switch 10, and if there is no output, the operation is stopped (step 3).
6). At the same time, the on-timer set state is released by the on-timer reset means 14 (step 37), and the operation of the on-timer means 13 is not started from the next day. However, if the output of the human detecting means 16 is detected thereafter (step 38), the on-timer setting means 15 sets the on-timer means 13 to a set state (step 39), and from the next day, the operation by the on-timer means 13 is performed. I do. In addition, the judgment time is set such that the human detection means 16 first detects a person from the start of operation by the on-timer means 13 in order to minimize unnecessary operation in an unmanned state while preventing early operation due to changes in life patterns and the like. The time until the detection is accumulated in the elapsed time calculation / storage means 18, the average elapsed time in the past several days is obtained by the average elapsed time calculation means 19, and the result is multiplied by the safety factor, and the determination time determination means 20 starts from the next day. Set the judgment time of.

[0012]

As described above, according to the control device for an air conditioner of the present invention, the on-timer means for starting the operation every day at a preset time, and the human detecting means for detecting the presence of a person in the room. After the start of the operation by the on-timer means, a means for stopping the operation when there is no output from the human detection means within the determination time, and an on-timer reset means for turning off the on-timer set state are provided. Even if you leave the house for a few days, even if you forget to turn off the timer set switch, the air conditioner will not continue to operate unattended, preventing wasteful consumption of electrical energy, The life of the equipment that can be used by the user will not be shortened in a meaningless manner. In addition, when there is an output from the human detection sensor, such as when returning home from outside, the operation is automatically started and the timer is set by the timer setting means. Therefore, the above-described effect can be obtained without the user turning on and off the timer set switch each time, and the operability can be improved.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of a control device of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a configuration diagram of an air conditioner according to one embodiment of the present invention.

FIG. 3 is a flowchart of a control device in the air conditioner according to one embodiment of the present invention.

FIG. 4 is a flowchart of a control device in the conventional air conditioner.

[Explanation of symbols]

 8 Control device 9 Remote controller 11 Time setting switch 12 On timer set switch 13 On timer means 14 On timer reset means 15 On timer setting means 16 Person detection means 17 Start / stop means 18 Elapsed time calculation / storage means 19 Average elapsed time calculation Means 20 Judgment time determination means 21 Control unit

Claims (3)

(57) [Claims] 1. An on-timer means for starting operation every day at a preset time, a person detecting means for detecting the presence of a person ,
From the start time of the on-timer operation several times,
Determination time based on the time until the presence of
Judgment of presence / absence of output from the human detection means determined by the step
In time, the control unit of an air conditioner having a means for stopping the operation when the output is not from the person detecting unit. 2. Driving every day at a preset time
Timer to start the operation and a human detection to detect the presence of a person
After starting the operation by the informing means and the on-timer means,
No output within the judgment period
Means for stopping operation, and the operation setting of the on-timer.
A control device for an air conditioner, comprising: an on-timer reset means for canceling a fixed state . 3. The human detection when the on-timer is cancelled.
When the means detects the presence of a person, the entry timer setting state is
An on-timer setting means for resetting to the state before cancellation
The control device for an air conditioner according to claim 2, further comprising: