JPS61285340A - Control device for air-conditioning machine - Google Patents

Abstract

PURPOSE:To control delicately the air-conditioning condition in a space, in which man is sitting, automatically and improve the comfortableness of air conditioning by a method wherein a space, in which a remote controller is located, is detected automatically as the space, in which man is sitting, and a time, in which the direction of blow-off air is directed to the space, is changed in accordance with a temperature difference between present room temperature and a set room temperature. CONSTITUTION:It is assumed that man is sitting near a position whereat the remote control unit 8 is located. The position is detected by a receiving unit, detecting with a high sensitivity inwhich division of blow-off airflwo direction 4 the position of the unit 8 is located,and a time period in which the blow-off air direction is directed to the detected division is prolonged in case a temperature difference between a set room temperature and present room temperature is large while the same time period is shortened in case the temperature difference is small. The delicate air conditioning such that the conditioning air is sent to a space, in which man is sitting, as much as possible when the temperature difference is large but the air is sent uniformly to the whole space in the room when the temperature difference becomes small may be effected automatically in such a manner, therefore,the comfortableness of the air conditioning may be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an air conditioner control device, and particularly to control of the blowing direction of the air conditioner.

[Conventional technology] In conventional air conditioners, it was common to manually adjust the direction of the air blown from the fan built into the indoor unit using flaps or louvers vertically or horizontally. .

Some methods include attaching a servo motor to the flap to automatically change the wind direction up or down when switching between heating and cooling modes, or using a screw-type louver to periodically change the wind direction.

[Problems to be solved by the invention] Since conventional air conditioners are configured as described above, it is possible to manually change the wind direction, automatically change the wind direction only when switching between cooling and heating, or simply change the wind direction. It only automatically changed the direction of the wind so that it was evenly distributed over the entire surface, but did not make fine-grained automatic adjustments to the wind direction.

Therefore, for example, when the temperature difference between the room temperature and the set room temperature is large, such as when starting the operation of the air conditioner/heater, more cold or warm air is sent to areas where there are people, and when the temperature difference becomes smaller, the air is sent evenly throughout the room. There was a problem in that it was not possible to meet the detailed demands of users.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an air conditioner control device that can finely adjust the direction of air blowing from an indoor unit of an air conditioner.

[Means for Solving the Problems] The air conditioner control device according to the present invention includes a wind direction changing means for periodically changing the blowing air direction to each section divided into a predetermined number, a room temperature sensor, a room temperature setting device, etc. a reception direction changing means for changing the high-sensitivity direction of a receiving section that receives a radio signal from a remote control unit, a remote control section detection means for detecting a section in which the remote control unit is located based on a radio reception signal from the remote control by the receiving section; The device is equipped with a temperature difference detection means between the room temperature and the current room temperature, and a means for controlling the wind direction changing means so as to change the time during which the blowing air direction is in the remote control section according to the temperature difference.

[Function] In the present invention, it is assumed that there is a person near the position where the remote control unit is placed, and a receiving unit that changes the high-sensitivity direction detects in which section of the blowing wind direction the position is located, When the temperature difference between the set room temperature and the current room temperature is large, the time period during which the blowing air direction is in the detected remote control section is lengthened, for example, and when the temperature difference is small, the time period during which the blowing air direction is oriented in the remote control section is, for example, controlled to be shortened. do. In this way, for example, when the temperature difference is large, a lot of air is sent especially to areas where people are present, and when the temperature difference is small, the air is sent evenly to all rooms, etc. Fine-grained control is automatically performed.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

Fig. 1 is a schematic diagram showing an embodiment of the present invention, and Fig. 2 is a block diagram showing an electric circuit of this embodiment. In Fig. 1, (1) is an indoor unit of an air conditioner, and (2) is , feather (2
an indoor fan consisting of a) and a motor (2b), (3) a louver that determines the direction (4) of the air blown out from the indoor fan, and (5) a louver that determines the direction (4) of the air blown out by changing the direction of this louver (3). The wind direction changing means periodically changes the wind direction to each of eight sections a to h, and consists of a servo motor (6) and a drive circuit (7) for this motor. (8) is a remote controller unit (hereinafter referred to as (9) is a remote controller built into the remote control unit (8) (hereinafter referred to as remote control), (10) is a remote controller (9) attached to the indoor unit (1) so that the high sensitivity direction can be changed. ) A receiving circuit (11) that receives a signal wirelessly transmitted from the receiving circuit (10) sets the high-sensitivity direction of the receiving circuit (10) to each section a '' h divided into eight sections, which are the same as the above-mentioned blowout direction (4). A receiving direction changing means for changing,
Servo motor (12) and drive circuit for this motor (13)
).

(14) is achieved by detecting by the reception sensitivity detection circuit (15) that the high sensitivity direction of the reception signal from the remote control (9) of the reception circuit (10) matches the direction of the remote control (9). , the remote control unit (8) is a
= remote control section detecting means which detects whether it is in any section of h and inputs it to a microcomputer (described later); (16) is a microcomputer (hereinafter referred to as microcomputer);
10), an input circuit (17) that receives signals from the remote control (9), signals from the reception sensitivity detection circuit (15), and signals from other sensors; a central processing unit (hereinafter referred to as CPU) (18); It consists of a memory (19), a drive circuit (13), an indoor fan (2), and an output circuit (20) that outputs control signals to other devices. (21
) is this microcomputer (16) and the receiving sensitivity detection circuit (15).
), and drive circuits (7) and (13).

(22) is a room temperature sensor that detects the current room temperature Tr.

(23) is a room temperature setting device for setting the room temperature TO, and (24) is a temperature difference detection means. From the temperature signal input to (16), the temperature difference T between the set room temperature To and the current room temperature Tr is determined in the microcomputer (16).

-Detect by calculating Tr. (25) is determined according to the temperature difference detected by the temperature difference detection means (24).
) is detected by the remote control section detection means (14); wind direction change control for controlling the wind direction change means (5) to make the time period in which the remote control unit (8) is in a certain section (hereinafter referred to as a remote control section) longer than in other sections; and is executed by the microcomputer (16).

Next, the operation will be explained with reference to FIGS. 3, 4, and 5. FIG. 3 is a flowchart showing a program for wind direction change control stored in the memory (15) of the microcomputer (12), and FIG. 4 shows the 8 sections a of the wind direction shown in FIG.
-h, the time when the wind direction is in the remote control section, that is, the time when the louver (3) stops in that section, and the set room temperature To
A diagram showing the relationship between the temperature difference To-Tr and the current room temperature Tr,
Figure 5 shows the rotation distance from the detected remote control section to other sections among the 8 sections a to h, and the louver (3
) is the ratio of the stop time in the remote control section to the stop time in the remote control section (
This is a diagram showing the relationship with the stop time ratio), in which the stop time ratio decreases as the distance from the remote control section increases. It is assumed that the relationships shown in FIGS. 4 and 5 are stored in advance in the memory (19).

First, while rotating the receiving circuit (10) in step (30), a signal from the remote control (9) is received in step (31). Next, in step (32), the sensitivity data detected by the reception sensitivity detection circuit (15) is sent to the reception circuit (10).
It is stored in the memory (19) in association with the rotational position of , and in step (33) the reception sensitivity and position are calculated to detect the highest sensitivity position, that is, the remote control section. Next step (34)
In step (35), a temperature difference To-Tr is calculated from the current room temperature data and set room temperature data of the received data, and in step (35), the louver stop time in the remote control section having the relationship shown in FIG. 4 is calculated from this temperature difference. Furthermore, in step (36), the direction in which the louver (3) is currently facing, that is, the blowing wind direction (4
) is located in which section of the remote control section, the rotation distance from the remote control section is obtained, and from this and the relationship shown in Figure 5, the stop time ratio in that section is determined, and this and step (35) A calculation process is performed in which the value multiplied by the obtained louver stop time in the remote control section is set as the stop time in this section.Next, in step (37), the louver (
3) is stopped at the current position and step (36
), and if it exceeds the calculated time, proceed to step (38) to move the louver (4); if not, proceed to step (39) to move the louver (4). The drive circuit (
7) outputs a control signal. The above operation is repeated to control the direction in which the louver (14) faces, that is, the wind direction (4).

In the above steps, steps (32) and (33) detect the remote control section detection means (14), step (34) detects the temperature difference detection means (24), and steps (35) to (39)
) are steps for respectively executing the wind direction change control means (25).

In this way, the remote control section detection means (14) determines that the location where the user is located is the section where the remote control unit (8) is located.
If detected, while the temperature difference between the room temperature and the set temperature is large, the time when the louver (3) is stopped facing the remote control section, that is, the time when the blowing air direction (4) is facing that section. is increased to improve the comfort of the user, and when the temperature difference becomes smaller, the stop time is set to tJX to equalize the temperature in the entire room.

In the above embodiment, an example was shown in which the direction of the blowing air was divided into eight equal parts, but it may be divided into any number of parts, and the stop time in the remote control section is not limited to the characteristics shown in Fig. 3, and the Although the louver was controlled to stop at the same time, it may be moved continuously and the moving speed may be changed for each section by the reciprocal of the stop time ratio shown in Fig. 4. Furthermore, the stop time ratio for stopping at each section may also be The stop time ratio is not limited to that shown in FIG. 4, and may be changed depending on the temperature difference. For example, while the temperature difference is large, the stop time can be changed for each section, but when the temperature difference is small, the stop time for each section can be made equal.

As described above, various fine-grained control of the blowing air direction becomes possible.

[Effects of the Invention] As described above, the present invention automatically detects the location of the remote control as a section where a person is present, and determines the time when the direction of the blowing air is present in that section according to the temperature difference between the current room temperature and the set room temperature. As a result, it is possible to obtain an air conditioner control device that can automatically finely control and optimize the air conditioning conditions in sections where people are present and improve comfort without any manual operation.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an electric circuit of this embodiment. 3 and 4 are diagrams for explaining the operation of this embodiment. FIG. 5 is a flowchart showing the operation of this embodiment. In the figure, (1) is the indoor unit, (2) is the indoor fan, and (3) is the indoor unit.
) is the louver, (4) is the blowing air direction, (5) is the air direction changing means, (9) is the remote control, (10) is the receiving circuit, (
11) is a reception direction changing means, (14) is a remote control section detection means, (15) is a microcomputer, (21) is a control circuit,
(22) is a room temperature sensor, (23) is a room temperature setting device, (2
4) is a temperature difference detection means. (25) is a wind direction change control means. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (5)

[Claims] (1) A remote control unit that includes a room temperature sensor, a room temperature setting device, an operation switch, and a remote controller (hereinafter referred to as a remote control) that sends out their detection signals, operation command signals, etc. as wireless signals; In an air conditioner control device, the air conditioner control device includes a receiving circuit that receives a wireless signal, and a control circuit that outputs a control signal to each part of the air conditioner. wind direction changing means for changing the high sensitivity direction of the receiving circuit; remote control section detecting means for detecting a section in which the remote control unit is located by reception of a radio signal from the remote control by the receiving section; and setting. A means for detecting a temperature difference between the room temperature and the current room temperature, and a wind direction changing control means for controlling the wind direction changing means so as to change the time during which the direction of the blowing air is in the remote control section according to the temperature difference from this means. Characteristic air conditioner control device. (2) The air conditioner according to claim 1, wherein the wind direction change control means increases the time during which the blowing wind direction is in the remote control section as the temperature difference increases. (3) The upwind wind direction change control means is means for controlling the wind direction change means so that the time when the blowing wind direction is in the remote control section is longer than the time when it is in other sections. The air conditioner control device according to scope 1 or 2. (4) The air conditioner according to any one of claims 1, 2, and 3, wherein the wind direction changing means is a means for stopping the blowing air direction for a predetermined period of time for each of the divided sections. Control device. (5) According to any one of claims 1, 2, and 3, wherein the wind direction changing means is means for continuously changing the direction of the blowing air at different speeds for each of the divided sections. The air conditioner control device described.