JPH0473049B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an air conditioner control method for controlling the wind blowing direction and indoor temperature of the air conditioner.

(Prior art) Conventionally, in air conditioners, the entire room is cooled and heated by stopping the operation of the compressor based on the room temperature detected by the room temperature sensor installed in the indoor unit. Depending on the location and number of people involved, there is a problem in that unnecessary space is heated and cooled more than necessary, wasting energy.

For this reason, as shown in Japanese Patent Application Laid-Open No. 60-221649, a human body position sensor for detecting the position of the person in the room was attached to the front of the indoor unit, and the angle of the air outlet grill was adjusted using the human body position sensor. There is something.

(Problem to be solved by the invention) However, even in such an air conditioner, the room temperature is controlled uniformly regardless of the position of the human body. There has been a problem in that the temperature at the location where the occupant is present drops too much during cooling, and rises too much during heating.

Additionally, if the occupants of the room are biased to the left or right, the air blowing from the air conditioner will also be biased to the left or right, resulting in poor air flow throughout the room, and the temperature detected by the room temperature sensor in the indoor unit will be lower than that of the entire room. The average temperature was detected to be higher during cooling and lower during heating, resulting in the air conditioner being operated unnecessarily, resulting in a lot of wasteful operation.

[Structure of the Invention] (Means for Solving the Problems) The first invention provides an air conditioner with a human body detection sensor that detects the position of a person in the room and a room temperature sensor that detects the temperature in the room. In a method for controlling an air conditioner, the air conditioner is provided with a blowout grille for adjusting the horizontal direction of the blowout flow at the air outlet of the machine, and a grille angle adjusting means for driving the grille,
The direction of the grill is controlled by the grill angle adjusting means so that the airflow is sent in the direction of the person in the room detected by the human body detection sensor. If the occupant's position is off to the left or right of the room, the indoor temperature setting should be set higher than when the occupant's position detected by the human body detection sensor is in the center of the room. It is a feature.

Further, in the second invention, the air conditioner is provided with a human body detection sensor for detecting the position of a person in the room and a room temperature sensor for detecting the indoor temperature, and the air conditioner is provided with a human body detection sensor for detecting the position of a person in the room, and a room temperature sensor for detecting the indoor temperature. In the method for controlling an air conditioner, the air conditioner is provided with a blow-off grill for adjusting the grille and a means for adjusting the angle of the grill for driving the grill, in which the blow-off flow is sent in the direction of a person in the room detected by the human body detection sensor. The direction of the grill is controlled by the grill angle adjusting means, and the human body detection sensor detects when the position of the person in the room detected by the human body detection sensor is off to the left or right of the room during cooling. The device is characterized in that the room temperature is set lower than when the person in the room is located in the center of the room.

(Function) According to the first invention, the airflow is sent in the direction of the person in the room detected by the human body detection sensor, and when the person in the room is shifted to the left and right in the room during cooling, By operating the room at a higher set temperature than when the occupant is located in the center of the room, the system is optimized to accommodate the occupant's location without having to air condition unnecessary spaces during cooling. Room temperature control is carried out.

According to the second invention, the airflow is sent in the direction of the person in the room detected by the human body detection sensor, and if the person in the room is shifted in the left-right direction of the room during heating, By operating the room at a lower set temperature than when the occupant is located in the center of the room, optimal room temperature control is achieved according to the occupant's location without having to air condition unnecessary spaces during heating. will be held.

(Embodiment) Hereinafter, a preferred embodiment of the air conditioner control method according to the present invention will be described based on the accompanying drawings.

First, the indoor unit 1 of the air conditioner will be explained with reference to FIG.

An indoor heat exchanger 3 is provided inside the indoor unit main body 2. Indoor air is sucked in through the indoor heat exchanger 3 at the rear of the indoor unit, and cooled air after heat exchange is released from an air outlet 4 provided at the lower front of the main unit 2. Alternatively, a blower 5 for blowing out hot air is provided.

A blowout grille 6 is provided within the air blowout port 4 to adjust the horizontal direction angle of the blowout flow, and a grille (not shown in the figure) for adjusting the blowout angle in the vertical direction is also provided.

The front surface of the indoor unit main body 2 on the suction side shows the room temperature Ta.
A room temperature sensor 7 is provided to detect the room temperature, and a human body detection sensor 8 is provided at the front of the indoor unit main body 2, such as an infrared sensor to detect the position of a person in the room.

As shown in FIG. 1, the blowout grille 6 is divided into three parts in the left and right direction, and the blowout angle in the left and right direction of each grille 6a, 6b, 6c can be adjusted by grill angle adjusting means 9a, 9b, 9c, respectively. ing.

As shown in FIG. 2, the human body detection sensor 8 includes a Fresnel lens 11 provided on the front surface of a sensor box 10, and a thermopile 12 provided at the focal point of the Fresnel lens 11. The electromotive force generated by the thermopile 12 is transferred to an IC board. 13 and outputs it as a current and voltage through a DC voltage circuit 14.

Now, in FIG. 1, each grill 6a, 6b,
6c, grill angle adjusting means 9a, 9b,
9c is driven by the sub-microcomputer 16, and each grill 6 is connected to the grill angle adjusting means 9a, 9b, 9c.
Angle detection sensors 17a, 17b, and 17c for detecting angles a, 6b, and 6c are provided, respectively, and their outputs are input to the sub-microcomputer 16.

The sub-microcomputer 16 is connected to the indoor microcomputer 18 that drives and controls the air conditioner, and is connected to the indoor microcomputer 18 that drives and controls the air conditioner.
8 is input into the sub-microcomputer 16, or various information from the sub-microcomputer 16 is input into the indoor microcomputer 18.

The indoor unit is also provided with a receiving section 19 that receives driving information transmitted from a wireless remote controller (not shown), and the received signal is input to the indoor microcomputer 18 and sub-microcomputer 16. Furthermore, the temperature detected by the room temperature sensor 7 is input to the indoor microcomputer 18, and the detected temperature and the set temperature set by the above-mentioned wireless remote control are inputted to the indoor microcomputer 18.
compares the temperature and controls equipment such as compressors so that the room temperature reaches the set temperature.

Further, the blower 5 is controlled by an indoor microcomputer 18 via a sub-microcomputer 16.

In the above, the human body detection sensor 8 is moved left and right by the drive device 17 from the sub-microcomputer 16, detects at which position in the room the person is present, and sends the detection signal and position signal to the current and voltage output 15 to the sub-microcomputer 16. Enter. The sub-microcomputer 16 controls the grill angle adjusting means 9 according to the position of the person in the room.
a, 9b, 9c, each grill 6a, 6b,
The angles of the grilles 6a, 6b, and 6c are controlled so that the grilles 6c face the direction of the person in the room.

That is, when the occupants are scattered throughout the room, each grill 6a, 6b, Adjust the angle of 6c.

In addition, if the people in the room are gathered in the center of the room R, each grill 6a, 6b, 6
Adjustment is made so that the blowout flow from c is concentrated in the range S2 shown in the figure.

Furthermore, if the occupants are closer to either the left or right side of the room R, each grill 6
Adjust the grilles 6a, 6 by this sub-microcomputer 16 in the direction in which they are biased so that the blowout flow is concentrated in the range S2 shown in the figure.
In the angle adjustment of b and 6c, if the blowout flow is concentrated all over or in the center as shown in FIGS. 4 and 5, the indoor microcomputer 18 adjusts the room temperature Ta detected by the room temperature sensor 7 and the set temperature STa. Compare with room temperature
The air conditioner is controlled so that Ta becomes the set temperature STa.

Figure 7 shows the room temperature Ta during cooling and heating in this case.
The dotted line in the figure shows the change in room temperature Ta over time during cooling operation, and the solid line shows the change over time in room temperature Ta during heating operation. Note that the set temperature STa for cooling and heating is shown as the same temperature in the figure for convenience.

When the occupants are scattered throughout the room or gathered in the center of the room, the indoor microcomputer 18 receives the location information of the occupants from the sub-microcomputer 16 and sets the room temperature Ta. The temperature is controlled to be STa, but if the temperature is shifted to the left or right side of the room R as explained in FIG. Make sure that Ta becomes the set temperature STa + 1℃, and when heating, the room temperature Ta becomes the set temperature STa -
Control the temperature to 1°C.

As shown in Figure 8, the change over time in the room temperature Ta during cooling/heating in this case is as follows: During cooling, the room temperature Ta
is controlled to STa + 1°C, and during heating, the room temperature Ta is controlled to the set temperature STa - 1°C.

In this way, if the occupants gather on one side of the room, there is no need to air condition the other spaces as much.
By changing the set temperature, you can save energy by the amount of temperature change and eliminate wasteful air conditioning.

That is, if only the left side of room R is heated as shown in FIG.
The temperature on the right side of the center is naturally 2 to 3°C lower than on the left side. However, if the temperature sensor 8 is installed in the center of the indoor unit, it will detect the average temperature of that room R, so the set temperature
If the operation is continued in STa, the area S3 where the occupants are present will be heated to a higher temperature than the set temperature. Therefore, by setting the set temperature to STa - 1°C during heating, the temperature on the side where the occupants are actually controlled to be close to the set temperature STa, which allows for appropriate and comfortable heating. Since the energy is reduced by 1°C, energy savings can be achieved.

Conversely, during cooling, comfortable cooling and energy savings can be achieved by setting the room temperature 1° C. higher than the set temperature STa.

[Effects of the Invention] As is clear from the detailed description above, according to the first invention, the airflow is sent in the direction of the person in the room detected by the human body detection sensor, and the person in the room is If the person in the room is off to the left or right of the room, the indoor temperature setting will be set higher than if the person is in the center of the room. Optimum room temperature control is performed in accordance with the location of the person in the room, and energy is saved.

According to the second invention, the airflow is sent in the direction of the person in the room detected by the human body detection sensor, and if the person in the room is shifted in the left-right direction of the room during heating, Since the indoor temperature is set lower than when the occupant is located in the center of the room, optimal room temperature control is achieved according to the occupant's location without having to air condition unnecessary spaces during heating. is carried out and energy is saved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment for implementing the air conditioner control method of the first and second inventions;
Fig. 2 is a sectional view of the indoor unit of the air conditioner of the same embodiment, Fig. 3 is a diagram showing details of the human body detection sensor of the same embodiment, and Figs. 4, 5, and 6 are the same embodiment. FIGS. 7 and 8 are plan views showing how the angle of the outlet grille is adjusted depending on the position of the person in the room, and FIGS. 7 and 8 are diagrams showing changes in room temperature over time in the same embodiment. 1...Indoor unit, 6a, 6b, 6c...Blowout grill, 7...Room temperature sensor, 8...Human body detection sensor, 9a, 9b, 9c...Grill angle adjustment means.

Claims (1)

[Claims] 1. An air conditioner is provided with a human body detection sensor that detects the position of a person in the room and a room temperature sensor that detects the temperature in the room, and the air outlet of the air conditioner is provided with a In a method for controlling an air conditioner, which is provided with a blow-off grill to be adjusted and a grill angle adjusting means for driving the grill, the blow-out flow is sent in the direction of a person in the room detected by the human body detection sensor. The direction of the grill is controlled by the grill angle adjusting means, and during cooling,
If the position of the person in the room detected by the human body detection sensor is closer to the left or right of the room, the set temperature in the room will be lower than if the person in the room detected by the human body detection sensor is located in the center of the room. A method for controlling an air conditioner, characterized in that the air conditioner is operated at a high temperature. 2 The air conditioner is equipped with a human body detection sensor that detects the position of the person in the room and a room temperature sensor that detects the indoor temperature, and the air conditioner's air outlet is equipped with a blowout grill that adjusts the left and right direction of the blowout flow. In addition, in the method for controlling an air conditioner including a grill angle adjusting means for driving the grill, the grill angle adjusting means is arranged so that the airflow is sent in the direction of a person in the room detected by the human body detection sensor. In addition to controlling the direction of the above-mentioned grill, during heating,
If the position of the person in the room detected by the human body detection sensor is closer to the left or right of the room, the set temperature in the room will be lower than if the person in the room detected by the human body detection sensor is located in the center of the room. A method for controlling an air conditioner, characterized in that the air conditioner is operated at a low temperature.