JP2015025564A - Air conditioner - Google Patents

Abstract

An air conditioner that allows a user to operate intuitively and accurately.
A projection unit 21 and cameras 22 and 23 are provided in an indoor unit 11, an image including operation setting information is projected from the projection unit 21 into an air-conditioned room, and a camera 22 indicates that a user 41 has touched the image. , 23, and the air conditioner is controlled according to the detected content. Thereby, the user 41 can operate an air conditioner intuitively and correctly, without using a remote control.
[Selection] Figure 4

Description

  The present invention relates to an operation unit of an air conditioner used for air conditioning in a house or the like.

  In conventional air conditioners, operation instructions for various additional functions such as starting and stopping operations, setting temperature and wind direction instructions, and other air cleaning functions are usually operated by operating the remote control attached to the air conditioner. I'm doing it.

  This remote control includes a wire remote control that is connected to the air conditioner in a wired manner and a wireless remote control that can transmit signals remotely using infrared rays, but in recent years, in many cases, a more convenient wireless remote control is an air conditioner. Comes with.

  While this wireless remote control (hereinafter simply referred to as a remote control) is convenient, it has a problem of being easily lost because it is portable. Moreover, even if it is not lost, it often happens that it is not within the reach of the user at the timing of operating the air conditioner, and the user must move to the remote control installation position in order to obtain the remote control. Yes.

  Therefore, it has been devised to operate the air conditioner with human voice instead of the remote control (see, for example, Patent Document 1). According to Patent Document 1, by analyzing the characteristics of a person's voice and learning the preference of heat, in the case of automatic driving, by simply driving a voice and driving according to the person, the desired thermal environment can be set. Can be provided.

Japanese Patent Laid-Open No. 5-157311

  In the air conditioner having the above-described conventional configuration, the operation depends only on the voice, and there is a problem in that a malfunction may occur depending on a situation such as ambient noise, and a desired accurate operation may not be performed.

  In addition, words that have the same sound as the expression of thermal feeling (for example, “hot”, “pinch”, etc.) are often used in daily conversation, and this may lead to an air conditioning operation unintended by the user. It was.

  In recent years, air conditioners have become multi-functional, such as air conditioning and air filter cleaning functions, as well as air conditioning. In order to operate all functions with voice, it is rather complicated to speak. Had the possibility of becoming.

  In order to solve the conventional problems, an air conditioner according to the present invention includes a projecting unit that projects an image including operation setting information of the air conditioner, and an image capturing unit, and the image capturing unit is The positional relationship between the projected image and the occupant is detected, and the operation setting is changed based on the detection result.

As a result, the operation settings for the air conditioner can be projected as an image, and the user can operate the air conditioner by touching the image, so the air conditioner can be operated intuitively and accurately without using a remote control. can do.

  The indoor unit of the air conditioner according to the present invention can be operated intuitively and accurately by the user.

Refrigeration cycle diagram of an air conditioner in an embodiment of the present invention The perspective view of the indoor unit of the air conditioner in embodiment of this invention Control block diagram of an air conditioner in an embodiment of the present invention The conceptual diagram which shows the state by which the image was projected in the air-conditioned room from the air conditioner in embodiment of this invention The top view which shows the state by which the image was projected in the air-conditioned room from the air conditioner in embodiment of this invention The top view which shows the state by which the image which expressed the wind direction and the air volume with the streamline was projected from the air conditioner in the air-conditioned room in the embodiment of the present invention. The top view which shows the state by which the setting of the air conditioner in embodiment of this invention was changed

  1st invention is equipped with the projection means and the imaging means which project the image containing the operation setting information of an air conditioner, and the imaging means has the positional relationship between the image projected by the projection means, and the occupant. It detects and changes an operation setting based on the detection result.

  According to this, since the operation setting content to the air conditioner is projected as an image in the air-conditioned room and the user can operate the air conditioner by touching the image, it is intuitively possible without using a remote control. The air conditioner can be operated accurately.

  According to a second invention, in the first invention, the imaging means detects a flat surface in the air-conditioned room, and the projection means projects an image on the flat surface.

  Furniture or the like is usually placed in the air-conditioned room, so if an image is simply irradiated, it may be projected onto an uneven surface of the furniture or the like, and the actually projected image may not be sufficiently recognized. However, by automatically recognizing a flat surface in the air-conditioned room and projecting the image onto the flat surface, the occupant can accurately recognize the image.

  According to a third invention, in the first invention, there is provided means for detecting the sight line direction of the occupant, and the projecting means projects an image in a direction in which the occupant can normally view the occupant. Since the projected image can be viewed directly without any setting, the convenience is further improved.

  In a fourth aspect based on the first aspect, when the occupant instructed by the remote controller, the occupant made a certain action, or the occupant uttered a certain sound. The projection of an image is started by any one of the above.

  Since the image is troublesome if it is always projected, it is desirable for the occupant to project the image at a desired timing, but this configuration allows the occupant to remotely and freely instruct the timing to project the image. be able to.

In a fifth aspect of the present invention, in the first aspect, when the projection means is projecting an image, the illumination illuminance in the air-conditioned room is reduced, thereby improving the visibility of the image and improving convenience. Can do.

  In a sixth aspect based on the first aspect, the air conditioner includes a wind direction deflecting blade, and the operation setting information includes a wind direction control direction of the air conditioner.

  The direction of wind direction control targeted by the air conditioner is projected into the actual air-conditioned room, so that the occupants can intuitively understand the wind direction that is set, and the air conditioner can be tailored to the individual preference. The driving instruction to can be adjusted easily and freely.

  In a seventh aspect based on the first aspect, the image projected by the projection means includes information related to the thermal sensation, and the information related to the thermal sensation includes warm and cold colors corresponding to the thermal sensation. It is expressed using.

  With the color information, it is possible to more intuitively adjust driving instructions to the air conditioner and to expect a psychological effect on the thermal sensation due to the color.

(Embodiment 1)
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

  FIG. 1 is a refrigeration cycle diagram according to an embodiment of the present invention.

  In FIG. 1, 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger, 4 is a pressure reducer, and 5 is an indoor heat exchanger. A refrigeration cycle is formed.

  Reference numeral 6 denotes an indoor blower that ventilates the indoor heat exchanger 5, 7 an indoor pipe temperature sensor that detects the temperature of a pipe (not shown) constituting the indoor heat exchanger 5, and 8 an outdoor heat exchanger. An outdoor blower 9 that ventilates 3 is an outdoor pipe temperature sensor that detects the temperature of a pipe (not shown) constituting the outdoor heat exchanger 3.

  Next, the air conditioning operation of the air conditioner configured as described above will be described.

  During the cooling operation, the refrigerant sucked and compressed by the compressor 1 is sent to the outdoor heat exchanger 3 through the four-way valve 2, where it is condensed and liquefied. The refrigerant exiting the outdoor heat exchanger 3 is depressurized by the decompressor 4 and guided to the indoor heat exchanger 5, where the refrigerant evaporates and takes the latent heat of evaporation from the indoor air and vaporizes it. Then, the refrigerant that has passed through the indoor heat exchanger 5 is again sucked into the compressor 1 through the four-way valve 2.

  On the other hand, during the heating operation, the four-way valve 2 is switched to the chain line flow path shown in FIG. That is, the refrigerant sucked and compressed by the compressor 1 is sent to the indoor heat exchanger 5 through the four-way valve 2 and is condensed and liquefied there. The refrigerant exiting the indoor heat exchanger 5 is depressurized by the decompressor 4 and guided to the outdoor heat exchanger 3, where the refrigerant evaporates and takes the latent heat of evaporation from the outdoor air and vaporizes it. Then, the refrigerant having passed through the outdoor heat exchanger 3 is again sucked into the compressor 1 through the four-way valve 2.

  FIG. 2 is a perspective view of the indoor unit of the air conditioner according to the embodiment of the present invention.

  As shown in FIG. 2, the indoor unit 11 of the air conditioner has an outer frame constituted by a base frame 12, a front panel 13, and a top surface suction grill 14.

The indoor unit 11 is connected to an outdoor unit (not shown) via a connection pipe 15, a power supply connection line, a signal connection line (not shown), and the like to form a refrigeration cycle. The indoor unit 11 is installed on the wall surface of the room and performs indoor air conditioning.

  Reference numeral 19 denotes a remote controller for remotely operating the air conditioner. The user can perform various operations on the remote controller 19.

  In the main body of the indoor unit 11, an indoor fan 6, an indoor heat exchanger 5 disposed so as to surround the upper part of the indoor fan 6, and an air filter (not shown) so as to surround the indoor heat exchanger 5 are also included. ) Is arranged.

  For example, a cross flow fan is used for the indoor blower 6 and is provided substantially in parallel with the indoor unit 11 and is connected to a motor (not shown). When transmitted, a signal is output from the air conditioning control unit 31 described later, and rotation is started.

  When the indoor blower 6 is operated, the air in the air-conditioned room flows into the indoor unit 11 from an opening provided in the indoor unit 11 such as the top surface suction grill 14, passes through the air filter, and exchanges heat in the room. After flowing into the indoor blower 6 via the device 5, the air is discharged from the blowout unit 16 into the air-conditioned room.

  The blowing section 16 is provided with an up / down wind direction deflecting blade 17 for deflecting the direction of the air blown from the blowing section 16 in the up / down direction and a left / right wind direction deflecting blade 18 for deflecting in the left / right direction. It is possible to freely adjust the wind direction.

  Further, on the front panel 13, a projection unit 21, which is a projection unit in the present invention, is disposed at a substantially central portion of the indoor unit 11.

  The projection unit 21 includes a light source unit composed of an LED or a halogen lamp, an image element such as an LCD (transmission type liquid crystal) or LCOS (reflection type liquid crystal), a lens, and a mirror as necessary.

  The lens of the projection unit 21 can be moved back and forth in the projection direction to adjust the focus of the projection image, and the lens can be automatically adjusted to the focus position. Further, the projection position and direction can be freely adjusted by operating the lens of the projection unit 21.

  Note that when laser light is used as the light source of the projection unit 21, an image can be projected with the projection surface substantially in focus without using a lens, and thus a lens is not necessarily required. When a lens is not used, it is desirable that the light source is movable in order to adjust the position where the image is projected.

  The projection unit 21 may be disposed in any part of the indoor unit 11 other than the front panel 13, but a sleeve wall may be installed in the vicinity of the wall of the room. It is desirable to arrange at a position that can be projected onto the indoor unit 11, that is, at a substantially central portion in the longitudinal direction of the indoor unit 11.

  Further, on the front panel 13, a first camera 22 and a second camera 23, which are image pickup means in the present invention, are arranged at a predetermined interval. The first camera 22 and the second camera 23 are composed of a lens and an image element such as a CCD or CMOS on which light transmitted through the lens is imaged. In addition, the first camera 22 and the second camera 23 employ a wide-angle lens so that the entire air-conditioned room can be photographed.

  In addition, you may image | photograph the whole air-conditioned room by moving the 1st camera 22 and the 2nd camera 23 by a predetermined angle with a motor. Further, the first camera 22 and the second camera 23 may be arranged in any part of the indoor unit 11 other than the front panel 13.

  Moreover, the control block diagram of the air conditioner in this Embodiment is shown in FIG.

  As shown in FIG. 3, the air conditioning control unit 31 is based on signals output from the indoor pipe temperature sensor 7 and the outdoor pipe temperature sensor 9, and the compressor 1, the four-way valve 2, the indoor blower 6, and the upper and lower wind direction deflecting blades. 17. Controls each component of the air conditioner necessary for the air conditioning operation, such as the right and left wind direction deflecting blades 18.

  The content instructed by the user to operate with the remote control 19 is received by the remote control signal receiving unit 32. The air conditioning control unit 31 controls each unit based on the signal output from the remote control signal output unit 33 based on the signal, and is mounted on the air conditioner including the above-described cooling or heating air conditioning operation. Various functions (for example, dehumidification, humidification operation, air cleaning operation, air filter automatic cleaning operation, timer operation setting) are operated.

  Information output from the first camera 22 and the second camera 23 is processed by the camera control unit 34 and then input to the projection image signal output unit 35. Further, the first camera 22 and the second camera 23 are controlled by the camera control unit 34 based on an output instruction from the projection image signal output unit 35 as necessary.

  The projection unit 21 is controlled by the projection control unit 36 based on an output instruction from the projection image signal output unit 35 and optically projects an image into the air-conditioned room with visible light.

  The projection image signal output unit 35 is obtained by processing a signal input from the first camera 22 and the second camera 23 via the camera control unit 34 and a signal projected by the projection unit 21. Output to the air conditioning control unit 31.

  Based on the signal output from the projection image signal output unit 35 to the air conditioning control unit 31, various functions (for example, dehumidification, humidification operation, Air cleaning operation, air filter automatic cleaning operation, timer operation setting) can also be performed.

  The operation and action of the air conditioner configured as described above will be described.

  FIG. 4 is a conceptual diagram illustrating a state in which an image is projected into the air-conditioned room, and 41 indicates a user who is present in the air-conditioned room. When the user 41 in the air-conditioned room instructs the air conditioner to project an image, as shown in FIG. 4, an image instructing the operating state of the air conditioner is projected into the air-conditioned room.

  As a means for the user 41 to instruct the air conditioner to project an image, any of the following means is possible.

  The remote control 19 is provided with a button for instructing “start projection”, and the user 41 can press the button to start projection.

Further, the projection image signal output unit 35 may have means for recognizing a person's identification and a person's movement. That is, a specific operation is registered in the projection image signal output unit 35 in advance, and is compared with a signal input to the camera control unit 34 via at least one of the first camera 22 and the second camera 23. Thus, the projection of the image can be started by recognizing a specific operation.

  This specific operation may be a gesture such as waving, for example, or the user 41 can freely register a desired operation. In the projected image signal output unit 35, different operations can be registered depending on the individual, and the individual can register a plurality of operations.

  As an operation for starting image projection, the projection can be started when the user 41 is looking at the indoor unit 11 of the air conditioner.

  Based on a signal input to the camera control unit 34 via at least one of the first camera 22 and the second camera 23, the projection image signal output unit 35 determines the center position of the eyeball of the user 41 and the center of the iris. It is possible to detect whether or not the user 41 is looking at the indoor unit 11 by analyzing the position and calculating from this information to detect the user's line of sight.

  The function of detecting the line of sight of the user 41 and starting the image projection is that the user 41 moves in the air-conditioned room, turns the body in the direction desired by the user 41, or freely changes the posture. Even so, the image projection can be started simply by directing the line of sight toward the indoor unit 11, which is very convenient for the user 41.

  In addition, the air conditioner may be provided with a voice recognition unit, and may be configured to start projecting an image from the projection unit 21 by uttering a specific word or sound set in advance. This specific word or sound may be arbitrarily set by the user 41.

  Of course, it is needless to say that not only one but also a plurality of projection start instructions described above may be installed, and the user 41 can project images using various remote communication means including any of the above. The timing to do can be instructed freely. In addition, when means other than instructing the start of projection using the remote controller 19 is adopted, the remote controller 19 can be eliminated.

  Simultaneously with the timing at which an image is projected from the projection unit 21, a signal may be transmitted to a lighting device (not shown) in the air-conditioned room to reduce the illumination illuminance in the air-conditioned room, and the visibility of the projected image may be reduced. It is possible to improve convenience.

  Next, the position where the projection unit 21 projects an image will be described in detail.

  The position where the image from the projection unit 21 is actually projected is performed on any of the ceiling surface, wall surface, floor surface, window surface, or object installed in the air-conditioned room in the air-conditioned room. .

  Since this projected image is usually provided with furniture or the like in the air-conditioned room, it may be projected onto an uneven surface of the furniture or the like when simply irradiating the image. Such an image projected on the uneven surface may not be sufficiently recognized when viewed from the user 41. Therefore, in order for the user 41 to accurately recognize the image, the image is projected onto a flat surface in the air conditioning room. It is highly desired.

  Therefore, in the present embodiment, a flat surface in the air-conditioned room is automatically detected, and an image from the projection unit 21 is projected onto the detected flat surface.

That is, since the first camera 22 and the second camera 23 are arranged at a predetermined interval, they are input from both the first camera 22 and the second camera 23 to the camera control unit 34. Based on the signal, the projection image signal output unit 35 can measure the distance of each object in the air-conditioned room from the indoor unit 11 by triangulation. The projection image signal output unit 35 performs image processing based on the triangulation result and a signal input to the camera control unit 34 via at least one of the first camera 22 and the second camera 23. Thus, a flat position in the air-conditioned room can be detected.

  A signal is sent to the projection unit 21 from the projection image signal output unit 35 via the projection control unit 36 to the detected flat surface, and the image is projected. Therefore, the flat surface is automatically recognized and flat. An image can be projected onto the screen, and a clear image can be obtained without the user 41 performing special settings.

  As described above, in order to detect a flat surface, it is desirable that both the first camera 22 and the second camera 23 can always photograph the entire air-conditioned room at the same time. Furthermore, since the distance is measured by triangulation based on the signals from the first camera 22 and the second camera 23, the first camera 22 and the second camera 23 may be arranged as far as possible. Desirably, in this Embodiment, it arrange | positions at the both ends of the longitudinal direction of the indoor unit 11. FIG.

  In this embodiment, two cameras are used. Instead of the cameras, ultrasonic waves, millimeter waves, and light (not limited to visible light) are irradiated from the indoor unit 11, and the reflection is detected. And you may measure the distance.

  In addition, the number of cameras is not limited to two, and may be three or more, or may be one, but triangulation is impossible in the case of one, so distance measurement is performed only by image recognition. Therefore, two or more units are desirable because accuracy decreases.

  In the case of a wall-mounted air conditioner as shown in the present embodiment, the indoor unit 11 is fixed to the wall surface by installation work, and changing the installation location of the indoor unit 11 during air conditioning operation Usually does not occur.

  On the other hand, the user 41 moves within the air-conditioned room, or turns the body in the direction desired by the user 41, or freely changes the posture, as necessary, regardless of the operating condition of the air conditioner. To do.

  Therefore, when the image projected by the projection unit 21 into the air-conditioned room is simply irradiated, the image can be projected in a direction in which the user 41 cannot be viewed normally (that is, a tilted position or an inverted position as viewed from the user 41). It will occur frequently.

  However, in the present embodiment, an image projected by the projection unit 21 is output from the projection control unit 36 to the projection unit 21 based on the line-of-sight information of the user 41 detected by the projection image signal output unit 35. For this reason, the image can be projected in a direction in which the user 41 can normally view without the user 41 performing special settings. For this reason, since the user 41 can view the image directly, it is very convenient.

  Next, the contents of the image projected by the projection unit 21 will be described in detail. In the present embodiment, for example, as shown in FIG. 4, an image having a content similar to that of a conventional remote control display is projected on the floor surface. FIG. 5 is a view of the state of FIG. 4 as viewed from above the air-conditioned room.

It is assumed that the image projected by the projection unit 21 includes operation setting information of the air conditioner. More specifically, information related to air conditioner operation modes such as “cooling”, “heating”, “dehumidification”, “automatic”, information related to set temperature, information related to air volume setting and wind direction setting, and air purification Information on the operation state of various additional functions such as functions is imaged as character information.

  The user 41 can instruct the operation of the air conditioner in the air-conditioned room by blocking a specific portion of an image similar to a conventional remote control display (hereinafter simply referred to as a remote control image).

  Whether the user 41 has blocked the remote control image is determined as follows.

  The distance of each object in the air-conditioned room from the indoor unit 11 measured by the triangulation performed by the first camera 22, the second camera 23, and the projection image signal output unit 35, the first camera 22 and the second camera Based on a signal input to the camera control unit 34 via at least one of the cameras 23, the projection image signal output unit 35 detects the human body and performs image processing to be combined with the projected image, thereby allowing the user to It is possible to detect whether a part of the body 41 touches a part of the remote control image.

  That is, since the user 41 can operate the air conditioner by touching the remote control image, the air conditioner can be operated intuitively and accurately without using the remote control.

  In FIG. 5, the user 41 is touching a part indicating the set temperature in the projected image, and by performing this operation, the temperature setting is changed (changed from 23 ° C. to another value in the figure). I am instructing.

  As described above, in the present embodiment, whether a part of the body of the user 41 is in contact with the image projected by the projection unit 21 and the means for automatically detecting the flat surface in the air-conditioned room. If it is determined and touched, the means for determining the position also serves as a structure. In this way, by combining the two means, it is possible to realize the function at low cost and in a space-saving manner.

  In the present embodiment, whether or not the remote control image is touched is detected, but it is detected whether or not the remote control image is blocked (a part of the body is inserted between the projection unit 21 and the projection surface). It may be a thing.

  In FIG. 5, the remote control display image is displayed in the air-conditioned room, but other images can be projected. For example, in FIG. 6, the streamline of the wind blown out from the blowing unit 16 of the indoor unit 11 is expressed using arrows, and the user can intuitively check the direction and the amount of the blown-out wind.

  Moreover, the elliptical image displayed in the air-conditioned room shown in FIG. 6 shows the target position of the wind blown out from the blowing unit 16 in the setting at that time. That is, in FIG. 6, the wind blown from the blowing unit 16 is directed to the substantially central portion of the air-conditioned room, and according to an instruction from the air-conditioning control unit 31, the rotational speed of the indoor blower 6 and the vertical wind direction deflecting blade 17. The left and right wind direction deflecting blades 18 are adjusted and blown out. Although this streamline can also schematically indicate the wind direction, it is more preferable to irradiate the corresponding position in the actual air-conditioned room.

  In addition, the user 41 touches the streamline to change the instruction of the desired air volume and direction to the air conditioner, that is, the rotation speed of the indoor blower 6 and the directions of the up and down air direction deflecting blades 17 and the left and right air direction deflecting blades 18. It is possible to directly specify a position or a region where the wind is desired to reach.

  This operation will be specifically described with reference to FIGS.

  In the state of FIG. 6, the setting of the air conditioner is controlled with the target at the substantially central portion of the air-conditioned room, which is indicated by an elliptical image, and the vicinity of the user 41 is not set as the target position. .

  Therefore, the user 41 touches the oval image with his / her hand and moves it to the vicinity of the user 41 while touching the image. As a result, as shown in FIG. 7, the wind direction and the air volume setting are changed, and the position preferable for the user 41, that is, the vicinity of the user 41 can be easily changed to the target position for control. Furthermore, it is possible to directly designate a position or region where the arrival of the wind is not desired.

  Thus, since the user 41 can directly specify the wind blown from the air conditioner to the corresponding position in the air-conditioned room, the user 41 can intuitively know the wind direction and the air volume set in the air conditioner. It is possible to comprehend the operation instructions to the air conditioner according to the personal preference, and it is very easy and intuitive to give instructions freely.

  In addition, color information can be included in images projected into these rooms.

  That is, if a cold color (for example, blue) is used during the cooling operation and a warm color (for example, red) is used during the heating operation, the operation instruction to the air conditioner is more intuitively adjusted based on the color information. Can also be expected to have a psychological effect on the thermal sensation of color. Moreover, a temperature distribution map can be displayed on the wall surface or floor surface using this color information.

  That is, the projection image signal output unit 35 can detect a thermal image of each part based on a signal input to the camera control unit 34 via at least one of the first camera 22 and the second camera 23. The temperature distribution is visually displayed as an image on the ceiling surface, wall surface, floor surface, window surface, or various objects installed in the air-conditioned room.

  Based on the displayed image of the temperature distribution, the user 41 can adjust the operation instruction to the air conditioner more accurately and intuitively.

  As described above, the indoor unit of the air conditioner according to the present invention can intuitively and accurately operate the air conditioner without using a remote controller. It can be applied to any use. In addition to the air conditioner, it can be applied to various devices such as an air purifier and a humidifier.

DESCRIPTION OF SYMBOLS 1 Compressor 2 Four-way valve 3 Outdoor heat exchanger 4 Pressure reducer 5 Indoor heat exchanger 6 Indoor fan 7 Indoor pipe temperature sensor 8 Outdoor fan 9 Outdoor pipe temperature sensor 11 Indoor unit 12 Base frame 13 Front panel 14 Top surface suction grill 15 Connection piping 16 Air outlet 17 Vertical wind direction deflection blade 18 Left and right wind direction deflection blade 19 Remote control 21 Projection unit 22 First camera 23 Second camera 31 Air conditioning control unit 32 Remote control signal reception unit 33 Remote control signal output unit 34 Camera control unit 35 Projection Image signal output unit 36 Projection control unit 41 User

Claims (7)

A projection unit that projects an image including operation setting information of the air conditioner; and an imaging unit, wherein the imaging unit detects a positional relationship between the image projected by the projection unit and a person in the room, and An air conditioner characterized in that an operation setting is changed based on a detection result. The air conditioner according to claim 1, wherein the imaging unit detects a flat surface in the air-conditioned room, and the projection unit projects an image on the flat surface. 2. The air conditioner according to claim 1, further comprising means for detecting a sight line direction of the occupant, wherein the projecting unit projects an image in a direction in which the occupant can view normally. The projection means starts projecting an image by any one of when the occupant instructs with a remote control, when the occupant performs a certain action, or when the occupant utters a certain sound. The air conditioner according to claim 1. The air conditioner according to claim 1, wherein when the projection unit is projecting an image, the illumination illuminance in the air-conditioned room is reduced. The air conditioner according to claim 1, wherein the air conditioner includes a wind direction deflecting blade, and the operation setting information includes a wind direction control direction of the air conditioner. The image projected by the projection means includes information related to thermal sensation, and the information related to thermal sensation is expressed using warm and cold colors corresponding to the thermal sensation. The air conditioner according to claim 1.

Images