JPH11193949A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve convenience of an air conditioner, by constituting it so that the conditioned air may track a moving man. SOLUTION: A control means 30 of an air conditioner is constituted of a receiving section 31 which receives operating conditions instructed from a user, a measuring section 32 which measures temperature distribution in a room, an arithmetic section 33 which receives the operating conditions instructed from the user from the receiving section 31 and the temperature distribution in the room from the measuring section 32, recognizes the user by learning the temperature distribution in the room based on the received operating conditions and temperature distribution, and computes the operating conditions, such as the wind direction, etc. of the air conditioner so that the air conditioner may blow conditioned air by tracking the user, and an output section 34 which controls the outdoor machine and indoor machine of the air conditioner based on the computed results of the arithmetic section 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of recognizing a person moving in a room from a difference between a room temperature distribution and a basic distribution stored in advance and tracking the person to blow air-conditioned air. Air conditioner.

[0002]

2. Description of the Related Art An air conditioner is a compressor for compressing a refrigerant,
An outdoor heat exchanger for exchanging heat between the refrigerant and the outside air, an outdoor unit having a decompressor for decompressing or reducing the refrigerant, and an indoor unit having an indoor heat exchanger for exchanging heat between the refrigerant and the indoor air. The control unit is disposed in the housing of the indoor unit, and performs a cooling and heating operation according to operating conditions transmitted from a user via a remote controller or the like.

[0003] The operating conditions of such an air conditioner include a blast temperature, a flow rate, a wind direction, and the like. The blast temperature is measured at room temperature, and the measured result is compared with an instructed set temperature to determine the outdoor unit or the indoor unit. Controlling the machine.

[0004]

However, the wind direction may be fixed, for example, left, center, right, up, down, etc., or may be swung left, right, up and down, etc. According to the conditions specified by the user, it does not change according to the indoor conditions. That is, the condition regarding the wind direction does not change until the user's instruction is changed.

[0005] Therefore, for example, in summer, when a user who has returned home from the outdoors operates the air conditioner to perform the cooling operation, the user does not follow the movement of the user and does not change the direction of the cool air.

For this reason, the user has to set the wind direction so that the cold wind hits him and stop the operation until the sweat retreats, so that there is a problem of lack of convenience.

[0007] In particular, when entering a room for the purpose of performing work that can be completed in a short time, if the movement is stopped until the room or body cools down, the stop time becomes longer than the work time, and the main customer is temporarily stopped. There has been a problem that the vehicle has fallen and the work efficiency has been significantly reduced.

In addition, if cold air hits the body for a long period of time, the body becomes uncomfortable or sometimes catches a cold. Therefore, after the body is adjusted to room temperature, the wind direction must be reset so that the cold air does not hit the body. There was an inconvenience that had to be done.

Accordingly, an object of the present invention is to solve the above problems and to provide a highly convenient air conditioner.

[0010]

In order to achieve the above object, the present invention provides an outdoor unit having a compressor for compressing a refrigerant, and heat exchange between the refrigerant and indoor air. In an air conditioner including an indoor unit having an indoor heat exchanger, an outdoor unit and an indoor unit are configured to recognize a user moving in a room and to blow air-conditioned air toward the user. Control means for calculating the operating conditions of the above and controlling the outdoor unit and the indoor unit.

According to a second aspect of the present invention, a control unit receives a driving condition specified by a user, a measuring unit measuring a temperature distribution in a room, and receives a driving condition specified by the user from the receiving unit. And a calculation unit for receiving the room temperature distribution from the measurement unit, recognizing the user based on these, and calculating the operating conditions of the outdoor unit and the indoor unit, and controlling the outdoor unit and the indoor unit based on the calculation results of the calculation unit. And an output unit that performs the operation.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of an air conditioner, which mainly includes an outdoor unit 10 disposed outdoors, an indoor unit 20 disposed indoors, and a control unit 30 disposed in a housing of the indoor unit 20. I have. In the figure, the solid line indicates a control line, and the double line indicates a refrigerant pipe.

FIG. 2 is a refrigerant circuit diagram of the air conditioner. The outdoor unit 10 includes a compressor 11 for compressing the refrigerant, an outdoor heat exchanger 14 for exchanging heat between the outside air and the refrigerant, and an outdoor heat exchanger 14 for the outside air.
An outdoor fan 12 that blows air to the air, a decompressor 15 that decompresses or throttles the refrigerant, and the like.

The indoor unit 20 includes an indoor heat exchanger 22 for exchanging heat between the refrigerant and the indoor air, an indoor fan 21 for blowing the indoor air to the indoor heat exchanger 22, and an air for heat exchanged by the indoor heat exchanger 22. It has a wind direction adjuster 23 for adjusting the blowing direction.

FIG. 3 is a block diagram of the control means 30. The receiving unit 31 receives operating conditions from a remote controller or the like, the measuring unit 32 measures indoor temperature distribution, and receives operating conditions designated by the user from the receiving unit 31. Together with the room temperature distribution from the measurement unit 32, based on these, learns the room temperature distribution, recognizes the user, and calculates the actual operating conditions. And an output unit 34 for controlling the machine 20.

The measuring unit 32 includes a radiation sensor (not shown), measures the room temperature distribution at predetermined time intervals, sends the measured room temperature distribution to the arithmetic unit 33, and the arithmetic unit 33 learns the room temperature distribution.

The learning of the room temperature distribution is performed by acquiring a basic pattern, and the basic pattern is stored in a storage unit (not shown) such as a memory.

The basic pattern is acquired at the same time (for example, 15 minutes) when the room temperature distribution when a predetermined time has elapsed after the start of the room temperature measurement and the room temperature is constant is divided by the set temperature to obtain the basic pattern. When a large number of room temperature distributions are acquired and the average value is divided by the set temperature to obtain a basic pattern, the room temperature distribution specified by the user is divided by the set temperature at that time to obtain a basic pattern, etc. There is.

In this embodiment, a basic pattern in the case where the room temperature is constant after a predetermined time has elapsed will be described as an example.

Further, it is necessary to determine the temperature distribution in units of a spatial area having a predetermined size so that the processed data does not become huge data. In this case, a person or the like can be represented by a mosaic-like temperature distribution.

Of course, the present invention is not limited to determining the temperature distribution in such a predetermined spatial region unit, but may determine in a predetermined temperature unit (for example, 2 ° C. unit).

The calculating section 33 reads out the basic pattern stored in the storage means and calculates the basic temperature distribution by multiplying the basic pattern by the set temperature set by the user.

The basic temperature distribution obtained by the calculation is compared with the room temperature distribution received from the measuring unit 32, and the characteristics of the current room temperature distribution are grasped from the difference, and the operating conditions are calculated so that there are no characteristic points. .

That is, the user operates the receiving unit 3 with a remote controller or the like.
When the set temperature is instructed to the receiving unit 31, the receiving unit 31
2 and the calculation unit 33 is notified of the set temperature.

Thus, the measuring section 32 measures the room temperature distribution and outputs the measured room temperature distribution to the calculating section 33. The calculating section 33 multiplies the received room temperature distribution by the basic pattern stored in the storage means by the set temperature. The characteristic points in the current room temperature distribution are determined from the temperature distribution.

Then, the air temperature, the air volume and the air direction are calculated so as to eliminate the characteristic points and output to the output unit 34. The output unit 34 controls the outdoor unit 10 and the indoor unit 20 based on the air temperature, the air volume and the air direction. Control.

When the temperature difference is large, the cooling air temperature is set to be lower than the set temperature during cooling, and the temperature is set to be lower than the set temperature during heating so that the temperature difference is quickly reduced. Increase wind temperature.

When the characteristic point having a large temperature difference is distant, the air flow is increased so that the wind direction follows the moving high heat source.

The operation of the air conditioner having the above configuration will be described by taking a cooling operation as an example, but it goes without saying that the same control is performed in a heating operation.

When a user as a high heat source enters the room and operates the remote controller, the arithmetic unit 33 determines the characteristic points of the room temperature distribution from the room temperature distribution and the basic temperature distribution received from the measuring unit 32, that is, the presence of the user as the high heat source. recognize.

At this time, a high heat source different from a human, such as a gas stove, may be present in the room. However, since these do not move, it is determined that the person is not a human in such a case.

When the presence of the user (characteristic point) is recognized in this way, the air temperature, the direction and the amount of the cool air are calculated so as to eliminate the characteristic point.

Then, the compressor 11 operates at the rotation speed set based on the blowing air temperature to compress the refrigerant, and the compressed refrigerant exchanges heat with the outside air by the outdoor heat exchanger 14 to be condensed.

The condensed refrigerant is decompressed or throttled by the decompressor 15 and sent to the indoor heat exchanger 20 where the refrigerant is removed.
At 0, the heat is exchanged with the indoor air blown by the indoor fan 21 to return to the compressor 11.

The indoor air that has exchanged heat with the refrigerant in the indoor heat exchanger 20 is sent to the room as cold air.

At this time, the indoor fan 2 is
1 rotates, and the direction of the cool air blown by the wind direction adjuster 23 is set according to the wind direction conditions.

As a result, even if the user moves, the cool air follows the user and is blown, so that the user does not need to stop until the body cools down, and the convenience is improved.

Then, when there is no place where the difference in the temperature distribution is significantly different (in a state where the human body is familiar with the room temperature), the air volume and the air direction are set by the conditions set by the user (for example, the air direction is swinging and the air volume is weak) or the initial value. The operation is performed under the set conditions (for example, the wind direction is upward and the air volume is random).

Since the human body temperature is always higher than the set temperature regardless of the cooling operation and the heating operation, this difference is different from the above-mentioned "state in which the human body is adapted to room temperature". Considering this, for example, when the temperature difference becomes 5 degrees during cooling, it is defined and set as a state in which the human body is adapted to room temperature.

In the above description, the case where the compression capacity of the compressor is changed in order to control the blowing temperature has been described. However, when the compression capacity is fixed, the number of revolutions of the indoor fan or the like is appropriately adjusted. Alternatively, the air temperature and the air volume may be controlled.

Further, the condition that the user moves to recognize the user has been described. However, the present invention is not limited to this. May be determined to be a non-human high heat source such as a gas stove.

[0042]

As described above, according to the present invention,
Since the control means recognizes the user moving in the room and calculates the operating conditions of the outdoor unit and the indoor unit so as to blow the conditioned air toward the user, the indoor unit and the like are controlled. Convenience is improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of an air conditioner applied to a description of an embodiment of the present invention.

FIG. 2 is a refrigerant circuit diagram.

FIG. 3 is a block diagram of a control unit.

[Explanation of symbols]

 Reference Signs List 10 outdoor unit 20 indoor unit 30 control means 31 receiving unit 32 measuring unit 33 calculating unit 34 output unit

Claims (2)

[Claims] 1. An air conditioner comprising: an outdoor unit having a compressor for compressing a refrigerant; and an indoor unit having an indoor heat exchanger for exchanging heat between the refrigerant and indoor air. The operation condition of the outdoor unit and the indoor unit is calculated so as to blow the air-conditioned air toward the user, and the outdoor unit and the indoor unit are controlled based on the calculation result. An air conditioner comprising control means. 2. The control means receives a driving condition specified by a user from the receiving unit, a measuring unit measuring a temperature distribution in a room, and a measuring unit for measuring the temperature distribution in the room. A computing unit for receiving the room temperature distribution from the unit and recognizing a user based on the room temperature and computing the operating conditions of the outdoor unit and the indoor unit; and controlling the outdoor unit and the indoor unit based on the computation result of the computing unit. An air conditioner comprising: an output unit.