JP2017048929A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner capable of performing wind guard control over a selection area.SOLUTION: An air conditioner has: an air-conditioning control terminal having an area selection part 71 which selects an area in which a user avoids an air current; a human body detection part 62 which detects the position of a human body; and an air current control part 67 which widens an area to which no air current is blown in a depth direction of the selected area when the human body detected by the human body detection part 62 is in the depth direction of the selected area viewed from an indoor unit blowing an air current. The area selection part 71 is enabled to select an area obtained by dividing an air-conditioned room into a plurality of regions and an area of the center region of the air-conditioned room.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an air conditioner.

  In Patent Document 1, a movable floor temperature sensor that is provided in an indoor unit and detects a floor temperature of the room, a vertical control flap that is provided at a blowout port of the indoor unit and is divided into one sheet or left and right, A left and right control flap provided at the outlet of the machine and divided into left and right, and a remote control having an area designation operation unit for designating an area to which the user sends an air flow. When an area designation signal is transmitted from this remote control, the indoor unit sets the initial value of the wind direction and wind speed so that the airflow is sent toward the designated area, operates, and the floor temperature sensor It describes that temperature unevenness is detected, and when the temperature unevenness exceeds a threshold value, the wind direction and the wind speed are corrected.

  Patent Document 2 describes that air is blown to an area detected by a human body detection sensor. For control, the left / right airflow direction setting table, the up / down airflow direction setting table, and the up / down airflow direction control board operation determination table are for the cooling operation mode, the heating operation mode, or the airflow mode that rectifies toward the target area section, the target It is said that a plurality of types may be prepared as in the windbreak mode in which the airflow is rectified so as to avoid the airflow slightly toward the area section. And since the airflow blown from the air conditioner is directed to the target area section, the airflow will not blow to the area section that does not need to be air-conditioned, and wasteful air conditioning energy should not be wasted. It also has an energy saving effect that can be done.

JP 2007-147120 A JP 2009-92283 (paragraphs 0022, 0105)

  According to the inventor's prior investigation, it has been found that, as in Japanese Patent Application Laid-Open No. H10-228707, the function of blowing wind to the designated area (wind blowing function) alone is not sufficient for the user's comfort. That is, while there are users who want to directly feel the airflow that is blown, there are also users who dislike it, so it is necessary to ensure the control of the direction of the air blown from the indoor unit in order to improve comfort. In particular, there is a demand that some people do not want to apply the wind, such as not wanting to directly hit the cold air during cooling or not directly hitting the warm air during heating.

  Moreover, in patent document 2, only the description of the windshield mode which rectifies | straightens so that an airflow may be avoided somewhat toward a target area division is described, and how to avoid a wind in the possibility of a windshield mode is described. There were problems such as.

  This invention is invention for solving the said subject, Comprising: It aims at providing the air conditioner which can control windshield to a selection area.

  In order to achieve the above object, an air conditioner of the present invention includes an air conditioning control terminal (for example, a remote controller 40) having an area selection unit for a user to select an area where airflow is prevented, and a human body detection unit that detects the position of the human body. And when the human body detected by the human body detection unit is in the back direction of the selected area as viewed from the indoor unit that blows air current, the air flow control unit that widens the area that does not send air current in the back direction of the selected area It is characterized by having. Other aspects of the present invention will be described in the embodiments described later.

  According to the present invention, it is possible to control the windshield in the selected area, and it is possible to eliminate user discomfort.

It is a figure which shows the external appearance structure of the air conditioner which concerns on embodiment. It is a figure showing the side section composition of the indoor unit of the air harmony machine concerning an embodiment. It is a figure which shows the external appearance of the remote control of the air conditioner which concerns on embodiment. It is a figure which shows the selection area by remote control operation, (a) is a figure which shows the selection area of an area, (b) is a figure which shows the selection area by the button of area selection. It is a figure which shows the wind blowing / windbreak selection by remote control operation. It is a figure which shows selection of the installation position of the indoor unit by remote control operation. It is a figure which shows the structure of the control part of the air conditioner which concerns on embodiment. It is a figure which shows the control block of the control part which concerns on embodiment. It is a figure which shows the control range of an up-and-down wind direction board, (a) is a side view, (b) is a top view. It is a figure which shows the control range of a left-right wind direction board. It is a figure which shows the control range of a wind direction board when a wind address is selected. It is a figure which shows the control range of a wind direction board when windbreak is selected in the area near an indoor unit. It is a figure which shows the control range of a wind direction board when windbreak is selected in the area far from an indoor unit. It is a figure which shows the direction of ventilation when there is an area of “windbreak” on the left side of the indoor unit, (a) is area E4, (b) is area E1, (c) is area E1, E4 is selected This is the case. It is a figure which shows the direction of ventilation in case the area of "wind protection" exists in the left side and front of an indoor unit, (a) is area E4, (b) is area E1, (c) is area E1, E4, (D) is a case where the area E5 is selected. It is a figure which shows the direction of ventilation in the case where there is a “windbreak” area in front of the indoor unit. (A) is area E4, (b) is area E1, (c) is area E3, (d) is area E2, (e) is area E5, (f) is areas E2 and E3, (g) is area E1. , E4 is selected. It is a figure which shows the direction of ventilation when there is an area of “windbreak” on the right side and the front of the indoor unit, (a) is area E3, (b) is area E2, (c) is areas E2, E3, (D) is a case where the area E5 is selected. It is a figure which shows the direction of ventilation in the case where there is a “windbreak” area on the right side of the indoor unit, where (a) is the area E3, (b) is the area E2, and (c) is the area E2, E3. This is the case. It is a flowchart which shows the corner direction determination process of a floor plan detection part. It is a figure which shows the image process performed by the corner direction determination process of a floor plan detection part, (a)-(e) has shown the procedure of the image process in this order. It is explanatory drawing which shows the indoor plane in the corner direction determination process of a floor plan detection part. It is explanatory drawing which shows the corner direction determination process of a floor plan detection part, (a) is a top view of a room, (b) is explanatory drawing explaining determination of the gravity center in an image. It is a flowchart which shows the expansion range determination process of a floor plan detection part. It is a top view which shows indoor arrangement | positioning in the expansion range determination process of a floor plan detection part. It is a modification of a remote control, (a)-(f) is a six-sided view of the remote control, and (g) is a sectional view thereof. (A) is an enlarged view of the main part of the remote controller in the modified example, (b) to (f) are reference diagrams showing display states, and (g) to (j) are other display states. It is an enlarged view shown.

DESCRIPTION OF EMBODIMENTS Embodiments for carrying out the present invention will be described in detail with reference to the drawings as appropriate.
<< Structure >>
<Overall>
Drawing 1 is a figure showing the appearance composition of the air harmony machine concerning an embodiment. The air conditioner AC is a device that performs indoor air conditioning such as cooling and heating using, for example, heat pump technology. The air conditioner AC is roughly classified into an indoor unit 100 installed on an indoor wall, ceiling, floor, and the like, an outdoor unit 200 installed outdoors, and the like, and communicates with the indoor unit by infrared rays, radio waves, communication lines, and the like. A remote control 40 (air conditioning control terminal) for the user to operate the air conditioner AC, and a sensor unit 50 for obtaining information used for controlling or displaying the air conditioner AC such as room temperature and outside temperature (see FIG. 7). ). Moreover, the indoor unit 100 and the outdoor unit 200 are connected with refrigerant | coolant piping and the communication cable. In the indoor unit 100, the imaging unit 110 is disposed at the center in the left-right direction. The remote control receiving unit Q is arranged at a position where it is easy to receive a remote control signal near the front lower part of the indoor unit 100.

<Indoor unit>
FIG. 2 is a diagram illustrating a side cross-sectional configuration of the indoor unit according to the embodiment. The indoor unit 100 includes a heat exchanger 102, a blower fan 103, left and right wind direction plates 104, up and down wind direction plates 105 (upper up and down wind direction plates 105a and lower up and down wind direction plates 105b), a front panel 106, electrical components, various sensors, and the like. Housed in the housing 101. The heat exchanger 102 has a plurality of heat transfer tubes, heat exchanges the indoor air taken into the indoor unit by the blower fan 103 with the refrigerant flowing through the heat transfer tubes, and cools and heats the air. It is configured. The heat transfer pipe communicates with the refrigerant pipe described above and constitutes a part of a known refrigerant cycle. The blower fan 103 can adjust the wind speed.

  The left and right wind direction plates 104 are rotated forward and backward by a motor for the left and right wind direction plates 104 with the base end side as a fulcrum about a rotation shaft provided at the lower part of the indoor unit 100. And the front end side of the left and right wind direction plate 104 faces the indoor side, so that the front end side of the left and right wind direction plate 104 can operate in a horizontal direction. The up-and-down wind direction plate 105 is rotated forward and backward by a motor for the up-and-down wind direction plate 105 with rotation shafts provided at both ends in the longitudinal direction of the indoor unit 100 as fulcrums. Thereby, the front end side of the up-and-down wind direction board 105 can be operated so as to swing in the up-and-down direction. The front panel 106 is installed so as to cover the front surface of the indoor unit 100, and can be rotated forward and backward by a motor for the front panel 106 with the rotation axis at the lower end as a fulcrum. Incidentally, the front panel 106 may be fixed to the lower end of the indoor unit without rotating.

  When the blower fan 103 rotates, the indoor unit 100 takes indoor air into the indoor unit via the air suction port 107 and a filter (not shown), and heat-exchanges this air with the heat exchanger 102. Thereby, the air after the heat exchange is cooled by the heat exchanger 102 or heated. The air after the heat exchange is guided to the blowout air passage 109a. Further, the air guided to the blowout air passage 109a is sent out from the air blowout port 109b to the outside of the indoor unit, and air is conditioned in the room. When the air after the heat exchange is blown into the room from the outlet, the horizontal wind direction is adjusted by the left and right wind direction plates 104, and the vertical wind direction is adjusted by the upper and lower wind direction plates 105.

<Outdoor unit>
The outdoor unit 200 (see FIG. 1) divides (divides) the heat exchanger room and the machine room by a partition plate, an electrical component box, and a lead wire support component. The heat exchanger chamber includes a propeller fan that promotes heat exchange with the outside air of the refrigerant circulating in the refrigerant pipe, a motor for driving the propeller fan, a propeller fan support that rotatably supports the propeller fan, and a refrigerant that circulates with the outside air. A heat exchanger that performs heat exchange is provided. The machine room has a compressor that converts the circulating refrigerant into a high-temperature and high-pressure gas refrigerant, an electric expansion valve that converts liquid refrigerant at room temperature and high pressure into liquid refrigerant at low temperature and low pressure, a reactor for electrical components, and refrigerant piping through which the refrigerant flows The heat transfer tube is arranged. The electrical component box stores electrical components for controlling the outdoor unit, and an electrical component lid is covered on the electrical component box.

<Remote control>
Drawing 3 is a figure showing the appearance of the remote control of the air harmony machine concerning an embodiment, (a) is a figure showing the time of normal use which closed the cover, and (b) the time of opening the cover. As shown to Fig.3 (a), it has an automatic driving | operation button (Eco-Cream (registered trademark) button), a heating button, a cooling button, a dehumidification button, etc. The remote controller 40 is operated by the user and transmits an infrared signal to the remote control receiver Q (see FIG. 1) of the indoor unit 100. The contents of the signal are various commands such as an operation request, a change in set temperature, a timer, an operation mode change, and a stop request. The air conditioner AC can perform at least indoor cooling, heating, dehumidification, and the like based on these signals. Further, other air conditioning functions such as air purification may be provided. That is, the air conditioner AC can adjust indoor air in various ways.

  When the cover 70 is opened, as shown in FIG. 3 (b), various detail setting buttons for other functions are provided. In particular, the air conditioner area selection button 71B and the air blowing / windbreak of the selected area are provided. Button 72B and an indoor unit installation position setting button 73B.

  FIG. 4 is a diagram showing a selection area by remote control operation, (a) is a diagram showing an area selection area, and (b) is a diagram showing a selection area by an area selection button. The indoor unit 100 will be described as being installed on the wall 331 of the room. As shown in FIG. 4A, the floor of the room is basically divided into four areas (areas E1, E2, E3, E4). The indoor unit 100 is divided into two areas (areas E1 and E2) on the near side of the room, and the indoor unit 100 is divided into two areas (areas E3 and E4) on the far side of the room. Further, the central portion of the room is classified into area E5.

  As shown in FIG. 4B, when the area selection button 71B is pressed, the area E1 of (1) is selected, and when the area selection button 71B is pressed next, the area E2 of (2) is selected. Then, each time the area selection button 71B is pressed, (3) area E3, (4) area E4, (5) area E5, (6) areas E1, E4, (7) Areas E2, E3, (8) areas E1, E2, (9) areas E3, E4, (10) no area setting, and (11) area selection cancellation are selected. The process is repeated every time the area selection button 71B is pressed.

  FIG. 5 is a diagram showing wind-off / windbreak selection by remote control operation. When the wind protection / wind protection button 72B of the selected area is pressed, the wind protection of (1) is selected, and when the wind protection / wind protection button 72B is pressed next, the wind protection is selected. Then, when the wind / wind button 72B is pressed next, the selection is canceled, and the process is repeated every time the wind / wind button 72B is pressed.

  FIG. 6 is a diagram showing selection of the installation position of the indoor unit by remote control operation. Since the indoor unit 100 is not necessarily installed at the center of the wall 331 as shown in FIG. 4A, the installation position can be set. When the indoor unit installation position setting button 73B is pressed, installation is set on the left side of (1), and when the button 73B is pressed next, installation is set at the center of (2). When pressed, installation is set on the right side. Hereinafter, every time the button 73B is pressed, the process is repeated as (2), (1), (2),.

  When the indoor unit 100 is set by the remote controller 40, the indoor unit 100 recognizes the wall 331 including the installation surface (see FIG. 4A) from the left, from the center, and from the right, and changes the wind direction depending on the state. It can be determined more accurately.

  In the above description, the installation position of the indoor unit 100 is input from the remote controller 40. However, the installation detection unit 63 (see FIG. 7) automatically detects the installation position by detecting the wall of the room and the corner of the room. You can also

<Configuration of control unit of air conditioner>
Drawing 7 is a figure showing the composition of the control part of the air harmony machine concerning an embodiment. The sensor unit 50 is provided in the indoor unit 100 and the outdoor unit 200. The sensor unit 50 includes a room temperature sensor, a humidity sensor, a clock, an imaging unit 110, an outside air temperature sensor, a compression temperature sensor, a refrigerant pipe temperature sensor, and the like.

  When the imaging unit 110 is a CCD (Charge Coupled Device) image sensor, the imaging unit 110 is installed at a lower portion in the center in the left-right direction of the front panel 12 (see FIG. 2). In addition to this, a thermopile, an infrared sensor, a near infrared sensor, a thermography, a pyroelectric sensor, an ultrasonic sensor, and a noise sensor may be used. What is detected by the imaging unit 110 is not limited to the presence or absence of a person and the position of the person, but may also detect a person's activity amount, a living scene, a floor plan, a wall surface, and the like.

<Control unit>
The control unit 60 includes a human body detection unit 62 that detects a human body based on imaging information of the imaging unit 110, a floor plan detection unit 63 that detects a floor plan in which the indoor unit 100 is installed based on the imaging information of the imaging unit 110, and a floor plan. An area dividing unit 64 that divides into areas for air conditioning control based on the floor plan of the detection unit 63, and a wind hitting / winding determining unit for each area that determines wind blowing / windbreaking for each area divided by the area dividing unit 64. 65, an installation position of the indoor unit 100, a selection area for wind protection / windbreak, a person (human body) positional relationship determination unit 66, an airflow control unit 67, a storage unit 69, and the like. The control unit 60 is provided in the electrical component (in the electrical component box). Based on information from the remote controller 40 and the sensor unit 50, the control unit 60 includes the blower fan 103, the left and right wind direction plates 104, the upper and lower wind direction plates 105, and the like of the indoor unit 100. Control. The control unit 60 controls the compressor 202, the propeller fan 207, and the like of the outdoor unit 200. The control unit 60 also controls the imaging unit 110.

  The floor plan detection unit 63 extracts edges in the image based on the image photographed by the imaging unit 110, extracts thick and long edges, extends a straight line, creates an intersection, and sets the center of gravity of the intersection as a vanishing point. Thus, the corner of the room is detected, and the detected corner is set as a tangent line between the wall and the wall or the wall and the ceiling or the wall and the floor, and the position of the wall, the ceiling, or the floor of the room is detected. A specific method will be described later with reference to FIGS.

  The storage unit 69 includes, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. Then, the program stored in the ROM is read out by a CPU (Central Processing Unit) of the control unit 60, developed in the RAM, and executed.

  With the above-described configuration, the control unit 60 operates the air conditioner AC in accordance with image information input from the imaging unit 110, command signals input from the remote controller 40, sensor outputs input from various sensors, and the like. Through comprehensive control, detailed operation control is possible.

  FIG. 8 is a diagram illustrating a control block of the control unit according to the embodiment. The floor plan detection unit 63 detects the floor plan of the air-conditioned room (room) from the image captured by the imaging unit 110. The floor plan detection unit 63 stores the floor plan detection result in the storage unit 69, and the region division unit 64 divides the air conditioning room into regions. Specifically, as viewed from the indoor unit 100, the room is divided into areas according to the distance in the depth direction, and the airflow control unit 67 controls the vertical airflow direction plate 105 at an angle according to the distance of each area. In addition, the room is divided into regions according to the angle from the indoor unit 100 in the left-right direction, and the airflow control unit 67 controls the left-right wind direction plate 104 at the angle of each region. The area division will be described later with reference to FIGS.

  As shown in FIG. 3, the remote controller 40 has setting buttons, an area selection unit 71 having an area selection button 71B for the air-conditioning room, and a wind having a wind blowing / windbreak button 72B for the selected area. An address / wind shield selecting unit 72, an installation position setting unit 73 having an indoor unit installation position setting button 73B, and the like are provided. The selection area and the input result of wind protection / windbreak are stored in the storage unit 69 via the transmission / reception unit 45. Similarly, the input result of the installation position is stored in the storage unit 69 via the transmission / reception unit 45.

  The wind hitting / windbreak determining unit 65 for each region corresponds to the input selection area and the region divided by the region dividing unit 64 based on the distance in the depth direction and the distance in the left-right direction as viewed from the indoor unit 100. Determine the relationship.

The installation position, the selection area, and the human positional relationship determination unit 66 (hereinafter referred to as the positional relationship determination unit 66) are the installation position of the indoor unit 100, the selection area for wind protection / windbreak, and the position of the person (human body). Determine the relationship. In particular,
(1) When the “Wind Address” area is set (see FIG. 11)
(2) When the indoor unit 100 is close to the left and right walls, a “windbreak” area is set near the front of the indoor unit 100, and a person exists in the back (see FIG. 12)
(3) When the indoor unit 100 is close to the left and right walls, a “windbreak” area is set on the far side of the front of the indoor unit 100, and a person exists in front of the area (see FIG. 13)
(4) When a “windbreak” area other than (2) and (3) is set (see FIGS. 14 to 18)
Etc. In response to the determination results (1) to (4), the airflow control unit 67 controls the wind direction of the left and right wind direction plates 104 and the upper and lower wind direction plates 105.

  FIG. 9 is a view showing the control range of the up / down wind direction plate, (a) is a side view, and (b) is a plan view. For example, it is divided into 10 in the depth direction (Z direction) of the room as viewed from the indoor unit 100. It becomes area A1, A2, ..., A10 from the indoor unit 100 side.

  FIG. 10 is a diagram illustrating a control range of the left and right wind direction plates. As viewed from the indoor unit 100, the image is divided into, for example, 20 regions in the left-right direction. From the left side toward the indoor unit 100, regions B1, B2,.

<Setting method of wind direction>
Next, a method for setting the wind direction for the wind-affected / wind-shielded selection area will be described.
FIG. 11 is a diagram illustrating a control range of the wind direction plate when the wind destination is selected. The wind direction in the case of performing the “wind hit” operation with the area selected will be described. The angle of the up / down wind direction plate and the angle of the left / right wind direction plate are controlled so that the airflow reaches the selected area most efficiently. At this time, the up / down wind direction plate 105 and the left / right wind direction plate 104 may be swung to send an air flow to the entire selection area.

  In the example shown in FIG. 11A, “Wind Address” is selected for the area E3. The positional relationship determination unit 66 sets the maximum control area of the up / down airflow direction plate 105 based on the installation position of the indoor unit 100 and the floor plan information. In the example of FIG. 11B, the positional relationship determination unit 66 determines that the control range of the vertical airflow direction plate 105 is the regions A1 to A8 based on the distance relationship to the wall 334 that is the opposing wall of the indoor unit 100. In this case, when “winding” on the area E3, the vertical wind direction plate 105 swings in the range of the areas A5 to A8. Further, the left and right wind direction plates 104 swing in the range of the regions B14 to B19.

  When the human body detection part 62 detects a person, as shown in FIG.11 (c), in order to ventilate a person effectively, you may narrow a control range. For example, the vertical wind direction plate 105 swings in the range of the regions A5 to A7, and the left and right wind direction plate 104 swings in the range of the regions B16 to B18.

  In addition, when a person is detected in an area other than the selected area, it is assumed that the person does not want the airflow from the indoor unit 100 to directly hit, so the vertical wind direction plate 105 and the left and right wind direction plate 104 are used. By controlling, you may control to the wind direction which an air current does not directly hit to the applicable person.

  Next, the wind direction in the case of performing the “windbreak” operation with the area selected will be described. Basically, the airflow is controlled so that the airflow does not reach the selected area.

  Regarding the up-and-down air direction plate 105, the case is divided according to the operation such as cooling and dehumidification other than during heating. Basically, the angle of spraying downward is used for heating so that warm air does not accumulate on the ceiling.

  However, when an area close to the indoor unit 100 is selected and “wind protection” is selected, the purpose of the wind protection is to aim at an angle that is larger than the area to avoid the angle of the vertical wind direction plate. Avoid airflow as much as possible in the area where

  FIG. 12 is a diagram illustrating a control range of the wind direction plate when windbreak is selected in an area close to the indoor unit. In the example shown in FIG. 12A, “Windbreak” is selected for the area E1. When the “windbreak” area is the area E1 close to the indoor unit 100 and a person is detected in the rear area far from the indoor unit 100 in the area on the straight line (see FIG. 12C), the front side Enlarge the range that blows away from the area. The up and down wind direction plate 105 and the left and right wind direction plate 104 are controlled with respect to the expanded range to blow an air flow that is difficult to be directly hit by the wind. By controlling in this way, it is possible to reduce the airflow blown to the front area.

  In the example shown in FIG. 12A, the “windbreak” area E1 is in the areas A1 to A4 as shown in FIG. 12B, and the person is detected in the area A7. , A6 is a range where the air blowing is not aimed. In this case, when “wind protection” is performed in the area E1, the vertical wind direction plate 105 blows air to the area A7. Moreover, the left-right wind direction board 104 swings in the range of area | region B15-B20, for example.

  FIG. 13 is a diagram illustrating a control range of the wind direction plate when windbreak is selected in an area far from the indoor unit. In the example shown in FIG. 13A, “Windbreak” is selected for the area E4. When the “windbreak” area is an area E4 far from the indoor unit 100, and a person is detected in a front area close to the indoor unit 100 on the straight line (see FIG. 13C), Enlarge the range that blows away from the area. The up and down wind direction plate 105 and the left and right wind direction plate 104 are controlled with respect to the expanded range to blow an air flow that is difficult to be directly hit by the wind. By controlling in this way, the airflow blown to the back area E4 can be reduced.

  In the example shown in FIG. 13A, the area “E1” of “wind protection” is in the areas A5 to A8, and the person is detected in the area A2, so the areas A3 and A4 are in a range where no air blow is intended. . In this case, when “wind protection” is performed in the area E4, the up / down wind direction plate 105 blows air to the area A2. Moreover, the left-right wind direction board 104 swings in the range of area | region B15-B20, for example.

  Next, the case where “wind protection” other than those shown in FIGS. 12 and 13 is set will be described with reference to FIGS. The purpose of the “wind protection” operation is to prevent the airflow from directly reaching the selected area as much as possible. Therefore, the direction of the left and right wind direction plates 104 is defined by the installation position of the indoor unit 100 and the state of the area position.

  FIG. 14 is a diagram showing the direction of air blowing when there is a “windbreak” area on the left side of the indoor unit, where (a) is area E4, (b) is area E1, (c) is area E1, and FIG. This is a case where E4 is selected. As shown in these figures, when there is an area selected by “windbreak” on the left side of the indoor unit 100, the airflow does not reach the “windbreak” area by facing the left and right wind direction plates 104 to the front. To.

  FIG. 15 is a diagram showing the direction of air blowing when there is a “windbreak” area on the left and front of the indoor unit, where (a) is area E4, (b) is area E1, and (c) is area. E1, E4, and (d) are when the area E5 is selected. As shown in these figures, if there are areas selected for “Wind protection” on the left and front of the indoor unit, turn the left and right wind direction plates 104 slightly to the right from the front to make the area “Wind protection”. Prevent airflow from reaching.

  FIG. 16 is a diagram illustrating the direction of air blowing when there is a “windbreak” area in front of the indoor unit. (A) is area E4, (b) is area E1, (c) is area E3, (d) is area E2, (e) is area E5, (f) is areas E2 and E3, (g) is area E1. , E4 is selected. As shown in these figures, when there is an area selected for “Windbreak” in front of the indoor unit, the airflow can reach the “Windbreak” area by turning the left and right wind direction plates 104 away from the front. Do not.

  Further, the floor plan detection unit 63 may detect the corner position of the room so that the position of the wall is predicted, and the left and right wind direction plates 104 may be directed in the left and right direction on the side farther from the indoor unit 100. The process for determining the corner direction of the room will be described later with reference to FIG.

  As shown in FIG. 16E, when the indoor unit 100 is installed near the center in the left-right direction of the wall and the area selected by “wind protection” is in front, there are two left-right wind direction plates 104. May be directed to the left side of the room and the right side may be directed to the right side of the room.

  FIG. 17 is a diagram showing the direction of air blowing when there is a “windbreak” area on the right and front of the indoor unit, where (a) is area E3, (b) is area E2, and (c) is area. E2, E3, and (d) are when the area E5 is selected. As shown in these figures, when there is an area selected for “Windbreak” on the right and front of the indoor unit, the “Windbreak” area can be obtained by turning the left and right wind direction plates 104 slightly to the left of the front. Prevent airflow from reaching

  FIG. 18 is a diagram showing the direction of air blowing when there is a “windbreak” area on the right side of the indoor unit, where (a) is area E3, (b) is area E2, (c) is area E2, and FIG. This is a case where E3 is selected. As shown in these figures, when there is an area selected for “Windbreak” on the right side of the indoor unit, the airflow does not reach the “Windbreak” area by turning the left and right wind direction plates 104 to the front. To do.

  14 to 18, the basic wind direction of the left and right wind direction plate 104 is defined. However, when there is an area where “wind protection” is selected in the entire left and right regions with respect to the indoor unit 100, for example, areas E1 and E2 In this case, there are areas E3 and E4. In this case, a person in the area selected by the human body detection unit 62 is detected, and the wind direction is directed so as to avoid the corresponding person. At this time, an area where no person is present may be swung or may be fixed in an area where no person is present.

  In addition, when a person is detected in an area other than the selected area, it is assumed that the person wants the airflow from the indoor unit 100 to reach, so the vertical wind direction plate 105 and the left and right wind direction plate 104 are controlled. By doing so, you may control to the wind direction which blows airflow centering on the applicable person. This wind direction may swing. Further, during the swing, when the direction of the left and right wind direction plates 104 passes a person, the operation of the left and right wind direction plates 104 may be stopped for a certain time.

Next, a case where no area is selected will be described.
When the area is not set at the time of “winding” operation, the control unit 60 controls the vertical wind direction plate 105 and the left and right wind direction plate 104 around the person detected by the human body detection unit 62 regardless of the location. Blow. At this time, the up / down wind direction plate 105 and the left / right wind direction plate 104 may swing.

  When the area is not set during the “windbreak” operation, the control unit 60 moves the vertical wind direction plate 105 and the left and right wind direction plate 104 so as to avoid the person detected by the human body detection unit 62 regardless of the location. Control and blow. At this time, the up / down wind direction plate 105 and the left / right wind direction plate 104 may swing.

<Flooring detection unit / corner direction determination processing>
FIG. 19 is a flowchart illustrating corner direction determination processing of the floor plan detection unit. FIG. 20 is a diagram illustrating image processing performed in the corner direction determination processing of the floor plan detection unit, and (a) to (e) illustrate image processing procedures in this order. FIG. 21 is an explanatory diagram illustrating an indoor plane in the corner direction determination process of the floor plan detection unit.

  First, the floor plan detection unit 63 (see FIG. 7) detects an edge from an image (an example is shown in FIG. 20A) acquired by the imaging unit 110 (processing S21). Next, the floor plan detection unit 63 performs a filtering process on the detected edges, leaving only edges that are thicker than a predetermined value, longer than a predetermined value, and clearer than a predetermined value (processing S22). In FIG. 20B, the edge 371 obtained from the image of FIG. Next, the floor plan detection unit 63 extends each edge 371 in the length direction (processing S23). FIG. 20C shows each edge 371 extended in this way. Then, the floor plan detection unit 63 obtains the intersection point (intersection point 372 shown in FIG. 20D) of each edge 371 thus extended (processing S24). Then, the center of gravity 373g of each intersection point 372 is obtained (processing S25). The coordinates of the center of gravity 373g are the X direction (horizontal direction in the figure) and the Y direction from the reference position on the image of each intersection point 372. It is possible to calculate the average of the distances in the (vertical direction in the figure) and to estimate the position of the center of gravity 373g on the image as the position of the corner (corner) of the room. Since the direction of the horizontal direction seen from the imaging unit 110 is known, the direction of the corner is stored in the storage unit 69 (processing S26) In the storage processing in this case, only the past predetermined number of times (for example, the past 10 times) is stored. The corner direction of the center of gravity 373g is accumulated in the storage unit 69, and information older than that is deleted, and the average value (moving average value) of the information for a predetermined number of times in the past is used as the final weight. The direction of the 373 g corner is determined and stored in the storage unit 69. This is because the direction of the left and right corners in the room indicated by the information accumulated in the storage unit 69 is the time zone due to the arrangement movement of furniture and furniture in the room. For this reason, as described above, the average value is obtained to eliminate noise contained in the information, and the most probable direction is set to the left and right corner directions in the room. Hereinafter, the center of gravity 373g is appropriately referred to as a corner 373. By processing S26, directions 376 and 377 described later are set.

  In the example of FIG. 20 (e), since the sliding door 374, which is a bran of the room in which the indoor unit 100 is installed, is open, the edge at the back of the opening is detected, and the center of gravity 373g is detected. The position is the position shown in FIG. However, if an image in which the sliding door 374 is closed is captured, there is a high possibility that the position of the reference numeral 375 or the vicinity thereof becomes the center of gravity 373g.

  As shown in FIG. 1, since the imaging unit 110 is located in the vicinity of the central portion in the longitudinal direction of the air outlet 109b (see FIG. 2), the center of gravity 373g specified as described above is from the air outlet 109b side. It can be regarded as a corner in the room.

  Further, as shown in FIG. 21, the floor plan detection unit 63 sets the corners 373 (left and right corners 373a and 373b toward the indoor unit 100) of the indoor units 100 in the directions 376 and 377 obtained in step S25. It is determined how many times the angle seen from the front direction 311 is (step S27). Then, it is determined that the wall with the smaller angle is closer to the wall with the larger angle when viewed from the air outlet 109b side (processing S28). That is, if the angle formed by the direction 376 and the direction 311 is smaller than the angle formed by the direction 377 and the direction 311, it is determined that the wall 336 is closer to the air outlet 109 b side than the wall 335 (see FIG. 8). If the angle formed by the direction 377 and the direction 311 is smaller than the angle formed by the direction 376 and the direction 311, it is determined that the wall 335 is closer to the air outlet 109 b side than the wall 336. Information on which of the left and right walls 336 and 335 is nearer or farther from the air outlet 109b side is also stored in the storage unit 69 (processing S29).

With reference to FIG. 21, the process S27 and the process S28 will be specifically described. First, the angle a is calculated. For example, if the number of pixels in the horizontal direction of the imaging unit 110 is, for example, 640 [pixel] and the number of pixels in the left-right direction in the range of the angle a is β [pixel]
“640 [pixel]: β [pixel] = 60 °: a °”,
“A ° = 60 ° × β [pixel] / 640 [pixel]”
It is requested from. Then, the angle A is obtained by “A ° = 30 ° + a °” (the angle of the range 312 is about 60 °, and 30 ° is a half thereof).

  In the same way, the angle b is obtained, and the angle B is obtained by “B ° = 30 ° −b °”. In this example, since “A °> B °”, in FIG. 18, it can be determined that the wall 335 is farther from the wall 336 when viewed from the air outlet 109b side.

  FIG. 22 is an explanatory diagram illustrating corner direction determination processing of the floor plan detection unit, (a) is a plan view of the room, and (b) is an explanatory diagram illustrating determination of the center of gravity in the image. Photographed when the interior shape of the room is not rectangular or square as shown in the plan view of FIG. 22 (a), for example, the interior corner portion 378 protrudes in a prismatic shape to the indoor side. An example of the image 337 is as shown in FIG. In such a case, a plurality of corner 373 candidates 373c may be obtained as shown in FIG.

  In such a case, by calculating the average of distances in the X direction (horizontal direction) and Y direction (vertical direction) from the reference position on the image of the plurality of candidates 373c, the coordinates after the average are obtained in the corner 373. Can be obtained as

  With the above processing, the floor plan detection unit 63 can accurately determine the directions 376 and 377 of the left and right corners 373a and 373b (see FIG. 18) of the room as viewed from the air outlet 109b side. Further, the floor plan detection unit 63 can also determine which of the left and right walls 336 and 337 in the room is closer and which is farther as viewed from the air outlet 109b side.

<Flooring detection unit / expansion range determination processing>
FIG. 23 is a flowchart illustrating an expansion range determination process of the floor plan detection unit. FIG. 24 is a plan view showing the indoor arrangement in the expansion range determination process of the floor plan detection unit. Reference is made to FIG. 21 as appropriate. With reference to FIG. 23 and FIG. 24, the process of determining the range of indoor expansion using the result of the detection process of the human body detection unit 62 will be described. First, imaging processing of the imaging unit 110 is performed every predetermined time t1, and the result is stored in the storage unit 69 each time.

  Specifically, indoor imaging by the imaging unit 110 is performed every predetermined time t1 (for example, one hour). For example, the movement of the imaging unit 110 in the horizontal direction starts at a constant angular velocity, and starts from the direction 318 side toward the direction 317 side shown in FIG. When the orientation of the imaging unit 110 reaches the direction 315, the imaging unit 110 captures an image by temporarily stopping as necessary, and the image data is stored in the storage unit 69 as a “left image”. Next, when the orientation of the imaging unit 110 reaches the direction 311, the imaging unit 110 captures an image by temporarily stopping as necessary, and the image data is stored in the storage unit 69 as a “front image”. Next, when the orientation of the imaging unit 110 reaches the direction 313, imaging is performed by the imaging unit 110 by temporarily stopping as necessary, and the image data is stored in the storage unit 69 as a “right image” ( Process S8). When the direction of the imaging unit 110 reaches the direction 313, the rotation direction of the stepping motor is reversed, and the horizontal direction of the imaging unit 110 starts to change from the direction 313 toward the direction 318. While the imaging unit 110 is moving from the direction 313 toward the direction 318, imaging by the imaging unit 110 is not performed. When the direction of the imaging unit 110 returns to the direction 315, the time is stored in the storage unit 69.

  Therefore, when the person is newly detected and the coordinate information of the person is stored in the storage unit 69 (Yes in process S41), the floor plan detection unit 63 determines the directions 376 of the left and right corners in the room from the coordinate information of the person. It is determined whether or not a human coordinate exists in the region 381 outside the region 383 between the direction 377 (processing S42). When the person's coordinates exist in the area 381 (showing an example of the person 382 in FIG. 24) (Yes in step S42), the position of the person in the X direction coordinates (left and right direction in FIG. 24) is set to the indoor unit 100. The position of the right wall 336 (or the left wall 335) is estimated (step S43). The fact that the person 382 is located at the coordinates means that the wall 336 (or the left wall 335) is at least at the position of the coordinates or further outside, so that the position of the person 382 is changed to the current wall. 336 (or the left wall 335).

  As a result, the estimated position of the wall 336 (or the wall 335) at the present time can be known, so that the position of each corner and each wall in the room is estimated (processing S44). That is, the Y direction (vertical direction) of the position of the wall 336 (or wall 335) is extended, and the intersection with the corner direction 376 (or corner direction 377) is the actual corner 422a (or corner 422b). It can be estimated that there is. Further, the position of the front wall 334 is extended until the corner 422a (or the corner 422b) is extended in the X direction (lateral direction) until reaching the direction of the other corner direction 377 (or the corner direction 376). Can be estimated. Then, it can be determined that the position that intersects the direction of the corner direction 377 (or corner direction 376) is another actual corner 422b (or corner 422a). Further, it can be estimated that the position extending in the Y direction from the position is the position of the other of the walls 335 and 336.

  On the other hand, after the process S44 or when the coordinates of the person do not exist in the area 381 (No in the process S42), the person lies in the area 383 between the directions 376 and 377 of the left and right corners in the room. When the coordinates exist (the example of the person 384 in FIG. 24 is shown) (processing S45, Yes), the coordinate position of the person in the Y direction is estimated as the position of the front wall 334 of the indoor unit 100 (processing). S46). The fact that the person 384 is located at the coordinates means that the wall 334 is at least at the position of the coordinates or further outside, so that the position of the person 384 is the current position of the wall 334. is there.

  As a result, the position of the front wall 334 can be known, and the position of each corner and each wall in the room is determined (processing S47). That is, the front wall 334 is extended in the X direction, and it can be estimated that the intersections between the corner direction 376 and the corner direction 377 are the actual corner 421a and the corner 421b. Then, when the actual corners 421a and 421b are extended in the Y direction, it can be estimated that the positions are the wall 336 and the wall 335.

  After processing S47 or when no human coordinates exist in the region 383 between the directions 376 and 377 of the left and right corners in the room (processing S45, No), it is estimated in processing S44 and processing S47. Of the actual corner and wall positions, the farthest from the indoor unit 100 side is set as the final determination result of the corner and wall positions (processing S48).

  In FIG. 24, the positions of the walls 331, 334, 335, and 336 estimated based on the person 384 are shown as 331a, 334a, 335a, and 336a, respectively. Similarly, the positions of the walls 331, 334, 335, and 336 estimated based on the person 382 are indicated as 331b, 334b, 335b, and 336b, respectively.

  In this case, when the determination result is obtained only in the process S44 or the process S47, the obtained determination result (the determination result of the one farthest from the indoor unit 100 side when a plurality of persons are detected) is displayed on each wall and The result of determining the position of each corner is used. And this determination result is memorize | stored in the memory | storage part 69 (process S49). This information is stored every predetermined time t1 because the information about each wall and each corner is acquired every predetermined time t1. Then, the storage of this information is updated with the information of the wall and the corner of the information after each predetermined reference time (for example, the latest 30 times in the latest) whose wall position is farthest from the indoor unit 100 side. To do. As a result, among the information acquired after the predetermined reference time, information on the position of each wall and each corner farthest from the indoor unit 100 side is stored in step S49.

The distances from the air outlet 109b thus specified to the actual corners 421a, 421b, 422a, 422b (estimated positions) on the left and right sides of the room are also obtained as follows. That is,
“Distance to corner 421a =
√ ((distance to wall 336a) ² + (distance to wall 334a) ² ) ",
“Distance to corner 421b =
√ ((distance to wall 335a) ² + (distance to wall 334a) ² ) "
It is. The distance to the corner 422a and the distance to the corner 422b are obtained in the same manner.

  In summary, the floor plan detection unit 63 determines, from the image captured by the imaging unit 110, the direction of the right corner on the front side of the air outlet 109b and the front of the air outlet 109b in the horizontal direction of the wind direction part. The position of the indoor wall can be detected based on the direction of the left corner on the side and the position of the person detected by the human body detection unit 62.

  The present invention is not limited to the embodiment described above. For example, a modification of the remote controller 40 will be described. FIG. 25 is a modified example of the remote controller, wherein (a) to (f) are six views of the remote controller, and (g) is a cross-sectional view thereof. FIG. 26 is a main part of the remote control, (a) is an enlarged view of the main part of the remote control in the modified example, (b) to (f) are reference diagrams showing display states, and (g) to (j) are others. It is an enlarged view which shows the display state. The shape of the remote controller 40 may be modified as shown in FIGS. 25A to 25G and FIGS. 26A to 26J.

  As described with reference to FIG. 3, the remote controller 40 is a remote controller (air conditioning control terminal) that operates the air conditioner AC, and includes a liquid crystal display unit. The liquid crystal display unit can display an area in the room by a square arrangement, and can display whether “winding” or “wind protection” is performed on the area. In FIGS. 25A to 25G, the part indicated by a solid line is the main part of the remote controller 40. The alternate long and short dash line is a line indicating only the boundary between the main part of the remote control 40 and the other part.

  According to the air conditioner of the present embodiment, the user can select “wind protection / wind protection” for the area selected by the remote controller 40 (air conditioning control terminal), and in particular, for the selected area, Appropriate windbreak control can be performed.

40 Remote control (air conditioning control terminal)
Reference Signs List 60 control unit 62 human body detection unit 63 floor plan detection unit 64 area division unit 65 wind hitting / windbreak determination unit for each region 66 installation position, selection area, human positional relationship determination unit 67 airflow control unit 69 storage unit 70 cover 71 Area selection unit 71B Area selection button 72 Wind protection / wind protection selection unit 72B Wind protection / wind protection selection button 73 Installation position setting unit 73B Indoor unit installation position setting button 100 Indoor unit 101 Housing base 102 Heat exchange Unit 102a Heat transfer tube 103 Blower fan 104 Left and right wind direction plate 105 Up and down wind direction plate 106 Front panel 107 Air suction port 108 Filter 109a Blow air passage 109b Air blowout port 110 Imaging unit 200 Outdoor unit AC Air conditioner Q Remote control receiving unit

Claims (5)

An air conditioning control terminal having an area selection unit for the user to select an area for avoiding airflow;
A human body detection unit for detecting the position of the human body;
When the human body detected by the human body detection unit is in the back direction of the selected area as viewed from the indoor unit that blows air current, an air flow control unit that widens an area that does not blow air current in the back direction of the selected area; An air conditioner characterized by comprising: The airflow control unit avoids the selected area in the left-right direction when the human body detected by the human body detection unit is in front of the selected area as viewed from the indoor unit. The air conditioner according to 1. The air conditioner according to claim 1, wherein the air flow control unit blows air in the front direction when the selected area is not in front of the indoor unit. 2. The air conditioner according to claim 1, wherein the air flow control unit blows air in a direction opposite to the selected area in a left-right direction when the selected area is in front of the indoor unit. Machine. The said area selection part makes it possible to select the area which divided | segmented the air-conditioning room into the several area | region, and the area of the center area | region of the said air-conditioning room. The Claim 1 characterized by the above-mentioned. Air conditioner.