JP2018151079A - Air conditioner system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform air conditioning for a dead-angle area with ventilation of air-conditioned air, in an air conditioner system configured to swing in a horizontal direction to enable ventilation.SOLUTION: An air conditioner system includes: a terminal device 47 including a floor plan creation unit 50 configured to generate data for a floor plan of a room; and a dead angle detection unit 60 configured to detect, based on floor plan coordinates created by the floor plan creation unit 50, a dead angle that is a wind direction angle indicating a direction of a boundary line between a dead angle area that a virtual line extending in a horizontal direction from a reference point with a horizontal wind direction plate driving unit 22 as reference never intersect with a wall of the room, and an air conditioning area that the virtual line intersects with the wall of the room. A horizontal wind direction control unit 70 is configured to, when air is fed with a wind direction angle changing, suspend change of the wind direction angle or increase an air feeding amount in a case where the wind direction angle becomes the dead angle.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air conditioner system that air-conditions a space that becomes a blind spot of air blow in the left-right direction in an indoor unit as much as possible.

Conventionally, when an indoor unit of an air conditioner air-conditions a room, Patent Document 1 discloses a technique of blowing air by swinging in the left-right direction while avoiding furniture that hinders ventilation.
This indoor unit includes a microwave transmission / reception device that measures the distance from the indoor unit to an obstacle in the room, an image sensor that captures an image of the room, and an image recognition device. The position of an obstacle such as indoor furniture that becomes an obstacle is detected, and air is blown away from the obstacle. For this reason, it can suppress the ventilation to the obstruction which obstructs ventilation, and can concentrate ventilation in the space where an obstruction does not exist.

However, the arrangement of obstacles such as room layouts and furniture is rarely changed, and air conditioning between the expensive microwave transmitter / receiver, image sensor, and image recognition device is required for the detection of room layouts and furniture. Installation in the machine caused a cost increase.
In addition, this air conditioner is designed to blow away from obstacles such as furniture, but what about the shadowed part of furniture, that is, the blind spot area where the blower does not reach the indoor wall directly? Since this is not taken into consideration, the blind spot area may become uncomfortable room temperature for the user.

JP 2001-355898 A (page 4-5, FIG. 7)

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and to perform air conditioning in a blind spot area by blowing air that has been conditioned in an air conditioner system that is capable of blowing air by swinging left and right.

In order to solve the above problems, the present invention according to claim 1 of the present invention provides:
An indoor unit comprising left and right wind direction plate units for deflecting the air-conditioned blown air to the left and right, and left and right wind direction control means for controlling the left and right wind direction plate units;
Arranged in the room where the indoor unit is installed,
A terminal device that transmits information on the direction of a blind spot area that cannot be directly air-conditioned by air-conditioned air sent out from the left and right wind direction plate unit to the indoor unit,
The left and right wind direction control means is
Based on the received information on the direction of the blind spot area, when it is determined that the blowing direction controlled by the left and right wind direction control means is close to the direction of the blind spot area, the control parameter for performing the air conditioning is the control parameter for the blowing direction. It is characterized by comprising air-conditioning correction means that is controlled to be larger than that before approaching the direction of the blind spot area.

  By using the above means, according to the air conditioner system of the present invention, the air conditioning correction means performs air conditioning when it is determined that the blowing direction controlled by the left and right wind direction control means is close to the direction of the blind spot area. The control parameter is controlled to be larger than that before the air blowing direction approaches the direction of the blind spot area. For this reason, the space of the blind spot area can be brought close to the set temperature.

It is a hardware block diagram which shows the Example of the air conditioning system by this invention. It is a functional block diagram in connection with the present invention. It is explanatory drawing explaining the principle which measures the distance from a terminal device to a wall surface. It is explanatory drawing explaining the principle which produces a floor plan. It is explanatory drawing explaining the principle which detects a blind spot angle.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings. In addition, illustration and description of a refrigerant circuit etc. not related to the present invention are omitted.

  FIG. 1 is a hardware block diagram showing an embodiment of an air conditioner system 1 according to the present invention. The air conditioner system 1 includes an indoor unit 20, an outdoor unit 30, and a terminal device (smart phone) 40. The indoor unit 20 blows air while changing the angle of the indoor unit storage unit 21, the left and right wind direction plate unit 22 for blowing air while changing the angle of the wind direction plate provided inside, and the vertical direction of the wind plate provided inside. An up-and-down wind direction plate unit 23, an indoor unit receiving unit 24 that receives infrared data, a blower fan motor 26, and an indoor unit control unit 25 that is connected to the outdoor unit 30 to control the entire indoor unit. . The indoor unit control unit 25 includes a left / right air direction control unit (left / right air direction control means) 70 that instructs the left / right air direction plate unit 22 to specify the left and right air directions.

  On the other hand, the terminal device 40 transmits data using infrared rays, an imaging unit 41 that captures an image, a gyro sensor 42 that detects three-axis angular velocities in the front-rear direction, the left-right direction, and the rotation direction of the terminal device 40, and a touch panel 43. A terminal transmission unit 44, a terminal storage unit 45, a display unit 46 including a liquid crystal display unit (not shown), and a terminal control unit 47 that controls the terminal device 40 are provided. The terminal control unit 47 also includes a floor plan creation unit (floor plan creation means) 50 that creates a floor plan based on the image data output from the imaging unit 41 and the angular velocity output from the gyro sensor 42; A blind spot angle detection unit (dead angle detection means) 60 for detecting the angle in the left-right direction of the blind spot area, which is a blind spot for blowing air, from the created floor plan is provided.

  FIG. 3 is an explanatory diagram for explaining the principle of measuring the distance from the terminal device 40 to the wall surface of the room in which the indoor unit 20 is installed. FIG. 3A is a view of the positional relationship between the indoor unit 20 and the terminal device 40 as viewed from the side of the room. 3 (2) and 3 (3) are screens displayed on the display unit 46 when the wall surface on which the indoor unit 20 is installed is photographed from the front. The floor plan creation unit 50 displays the vertical reference line 6 at the center of these screens and the horizontal reference line 5 at the center of the top and bottom.

FIG. 5 is a floor plan showing a room in which the indoor unit 20 is installed, a blind spot area (shaded portion) where air cannot be blown directly from the indoor unit 20, and an air-conditioning area where air can be blown directly from the indoor unit 20. is there. The schematic operation of each block will be described below with reference to FIGS. 3 and 5, but detailed description will be given later.
First, the user stands with the terminal device 40 at a position where the indoor unit 20 can be seen in front of the room where the indoor unit 20 is installed, and where the blind spot area that becomes a blind spot by the blow of the indoor unit 20 can be seen. Specifically, in FIG. 5, the user is positioned on a virtual straight line extending upward in FIG. 5 from the coordinates of the reference point of the indoor unit 20 and above the blind spot corner in the blind spot area in FIG. 5.
Next, when the user gives an instruction to start creating a floor plan by operating the touch panel 43, the floor plan creating unit 50 displays an image of the wall surface of the room output by the imaging unit 41 on the display unit 46.

  As shown in FIG. 3 (1), a user (not shown) directs the lens 40b of the terminal device 40 to the front (front center point 2) of the wall surface on which the indoor unit 20 is installed. The distance h from the floor surface to the center point 40a of the terminal device 40 is 1.5 meters, and the height h is set in the floor plan creation unit 50 in advance by a user setting operation. Note that a position immediately below the center point 40a of the terminal device 40 is referred to as a direct position 4, and a virtual straight line connecting the center point 40a and the position 4 directly below is referred to as a straight line H.

  An image displayed on the display unit 46 of the terminal device 40 in this state is shown in FIG. The lens 40b of the terminal device 40 is a front wall surface located at a position 1.5 meters from the floor surface, and is directed to a vertical line that equally divides the indoor unit 20 left and right, that is, toward the front center point 2. In this state, the user taps the touch panel 43.

  When this operation data is input from the touch panel 43, the floor plan creation unit 50 sequentially inputs angular velocities output from the gyro sensor 42 and stores them in the terminal storage unit 45. As shown in FIG. 3 (1), the user directs the lens 40b of the terminal device 40 downward, and the terminal device 40 indicates the orientation of the terminal device 40 with a broken line so that the horizontal reference line 5 overlaps the boundary between the wall surface and the floor surface. Adjust to the 40A position. The display of the terminal device 40 in this state is shown in FIG. In this state, the user taps the touch panel 43.

When this operation data is input from the touch panel 43, the floor plan creation unit 50 stops storing the angular velocity output from the gyro sensor 42 in the terminal storage unit 45. Then, the floor plan creation unit 50 integrates the stored angular velocity data to calculate the angle θ = 16.7 degrees at which the terminal device 40 is rotated downward. As shown in FIG. 3 (1), a virtual line connecting the center point 40a of the terminal device 40 and the front center point 2 of the wall surface, and a virtual line connecting the center point 40a of the terminal device 40 and the boundary 3 between the floor surface and the wall surface. Since the angle between them is θ = 16.7 degrees, the floor plan creation unit 50
d0 = h / tan θ... Formula 1
Substituting the height h = 1.5 meters and the angle θ = 16.7 degrees into Equation 1, the distance d0 = 5 meters between the wall surface of the indoor unit 20 and the terminal device 40 is calculated.

  Next, the user rotates the terminal device 40 360 degrees in parallel with the floor with the straight line H described above as the rotation axis. During this rotation, the floor plan creation unit 50 measures the distance between each corner of the room and the terminal device 40 by the method described above. That is, each time a corner of the room appears, the distance is measured by rotating the lens 40b of the terminal device 40 from the horizontal position toward the boundary 3 between the floor and the wall surface. In addition, the floor plan creation unit 50 simultaneously measures the angle of each corner centering on the terminal device 40 and using the imaginary line connecting the center point 40a of the terminal device 40 and the front center point 2 of the wall surface as a reference for the angle. To do. Then, the floor plan creation unit 50 stores the distance between each corner and the terminal device 40 and the angle of each corner in the terminal storage unit 45.

  Next, the floor plan creation unit 50 obtains the two-dimensional coordinates of each corner from the distance between each corner stored in the terminal storage unit 45 and the terminal device 40 and the angle of each corner, as floor plan coordinates. Output to the blind spot angle detector 60. The operation of the floor plan creation unit 50 will be described in detail later.

  The blind spot angle detection unit 60 to which the floor plan coordinates are input is an angle formed by the boundary line between the blind spot area and the air conditioning area described above and a straight line indicating the wall surface on which the indoor unit 20 is installed as shown in FIG. The blind spot angle is calculated using the floor plan coordinates created by the floor plan creation unit 50, and the blind spot angle, which is information on the direction of the blind spot area, is transmitted to the indoor unit 20 via the terminal transmission unit 44. . A method for detecting the blind spot angle will be described later in detail.

  On the other hand, the blind spot angle received by the indoor unit receiving unit 24 is stored in the indoor unit storage unit 21 via the left / right wind direction control unit 70. The left and right wind direction control unit 70 increases the rotation speed of the blower fan motor 26 when the wind direction angle when the air is blown while changing the wind direction in the left and right direction becomes the blind angle read from the indoor unit storage unit 21. Increase the air volume, decrease the speed of deflecting the wind direction to the left or right, stop the deflection of the wind direction, or raise the temperature of the air to be blown up during heating operation, or blown At least one of the controls for lowering the temperature of the air to be lowered during cooling operation is executed. It should be noted that the blowing direction and the blind angle do not necessarily coincide with each other, and the above operation may be performed if the blowing direction is close to the blind angle to some extent. Moreover, you may give a range to a blind spot angle.

  For this reason, the indoor unit 20 can blow a larger amount of air conditioned near the blind spot area than the air-conditioned area, and can concentrate and control the room temperature near the blind spot area. The set temperature can be approached.

Next, the configuration of each functional block will be described with reference to the functional block diagram related to the present invention in FIG. 2 and FIG.
In FIG. 2, a floor plan creation unit 50 obtains a distance between the terminal device 40 and the wall surface on which the indoor unit 20 is installed, and outputs a reference distance value d0 (reference distance measurement unit). 51, a corner distance measuring unit (corner distance measuring means) 52 that measures the distance between the terminal device 40 and each corner and outputs the corner distance dc, and the horizontal angle of the terminal device 40 is measured to measure the distance d0. A corner angle measuring unit (corner angle measuring means) 55 that outputs a corner angle ac, which is an angle from a straight line indicated by, for each corner, a corner distance dc, and a corner angle ac are input. A coordinate calculation unit (coordinate calculation means) 53 that calculates the coordinates and outputs the corner coordinates cc, and the input corner coordinates cc (the reference point is the imaging unit 41 of the terminal device 40) Mato view coordinates (reference point from the center position) has a coordinate conversion unit (coordinate transforming unit) 54 for converting the coordinates of the reference point at the center position) of the indoor unit 20.

FIG. 4 is an explanatory diagram for explaining the principle of creating a floor plan. Here, the coordinates indicating the position in the floor plan are (x, y), and the center of rotation of the terminal device 40 is the coordinate PC (0, 0) of the reference point. X and y are in meters.
Then, the reference distance measurement unit 51 obtains the reference distance d0 = 5 meters as described above, and stores this in the terminal storage unit 45.

  The corner distance measuring unit 52 outputs the measured corner distance value to the coordinate calculating unit 53 every time the user completes the operation of measuring each corner distance, and the coordinate calculating unit 53 stores this in the terminal storage unit 45. To do. In FIG. 4, the center of rotation of the terminal device 40 is defined as the coordinate PC (0, 0) of the reference point, and the distance from this PC to each corner is C1 (d1 = 5.4 meters), C2 (d2 = 3.6 meters). , C3 (d3 = 5 meters), C4 (d4 = 4.5 meters), C5 (d5 = 2.8 meters), C6 (d6 = 5.4 meters). Further, the corner distance measuring unit 52 outputs a corner end signal to the corner angle measuring unit 55 every time measurement of each corner distance ends.

  On the other hand, the corner angle measurement unit 55 sequentially stores the angular velocities output from the gyro sensor 42 in the terminal storage unit 45 when the terminal device 40 starts to rotate in the horizontal direction, and when the corner end signal is input, the corner angle measurement unit 55 55 reads out and integrates the stored angular velocity to obtain the corner angle ac, outputs the corner angle ac to the coordinate calculation unit 53, and the coordinate calculation unit 53 stores this in the terminal storage unit 45. Accordingly, the terminal storage unit 45 has C1 (12.8 degrees), C2 (146.3 degrees), C3 (233.1 degrees), C4 (296.6 degrees), C5 (315 degrees), C6 (338.2). Degree) is stored. The corner angle measurement unit 55 outputs this value as a corner angle to the coordinate calculation unit 53 when the angle being measured reaches 360 degrees.

As shown in FIG. 4, the coordinate calculation unit 53 is located at a center left and right of the back of the indoor unit 20 at a reference distance d0 (5 meters) away from the coordinate PC (0, 0) of the reference point in the downward direction of FIG. 4. For this reason, this is assumed to be coordinates P0 (0, -5).
When the corner angle ac output from the corner angle measuring unit 55 is 360 degrees, the coordinate calculating unit 53 recognizes that the measurement of each corner has been completed, and the coordinate PC ((PC) of the reference point stored in the terminal storage unit 45). Each corner coordinate cc is obtained from the corner distance dc and each corner angle ac from (0, 0) to each corner.

As shown in FIG. 4, since the first corner C1 is a right triangle having a reference distance d0 (5 meters) as a base and d1 (5.4 meters) as a hypotenuse, coordinates P0 (0, -5) From x, x of coordinates C1 (x, -5) of corner 1 can be obtained.
x = tan θ · d0 Equation 2
Because
First, the coordinate calculation unit 53 calculates θ = 2 by assigning θ1 = 12.8 degrees, d0 = 5 meters to Equation 2, and obtains the coordinate C1 (2, −5) of the corner 1, and this coordinate is obtained from the terminal. Store in the storage unit 45.

The relationship between the reference point coordinate PC (0, 0) and the corner 2 distance d2 (3.6 meters), corner angle (146.3 degrees), the base of 2 meters and the hypotenuse of 3.6 meters It is. Therefore, y = tan θ2 · x Equation 3
Therefore, the coordinates C2 (2, y) of the corner 2 can be obtained.
Next, the coordinate calculation unit 53 calculates θ2 = 146.3 degrees−90 degrees = 56.3 degrees, and substitutes θ2 = 56.3 degrees and x = 2 into Equation 3 to calculate y = 3. The coordinates C2 (2, 3) of the corner 2 are obtained, and the coordinates are stored in the terminal storage unit 45.

Hereinafter, similarly, the coordinate calculation unit 53 performs C3 (−4, 3) at corner 3, C4 (−4, −2) at corner 4, C5 (−2, −2) at corner 5, and C6 (− at corner 6). 2, -5) is obtained and stored in the terminal storage unit 45. In this embodiment, these coordinates and the coordinates of corner 1 and corner 2 are also referred to as corner coordinates.
In this embodiment, the height of a right triangle is obtained using a trigonometric function, but the present invention is not limited to this, and the height of a right triangle may be obtained using a three-square theorem.

  The coordinate conversion unit 54 converts the corner coordinates determined with the rotation center of the terminal device 40 as the reference point coordinates PC (0, 0) to coordinates having the indoor unit 20 as the reference point coordinates PC (0, 0). . Since these x coordinates are the same, the coordinate converting unit 54 adds the reference distance d0 = 5 to the y value of the corner coordinates to convert it, and obtains a new corner coordinate C (x, y), which is stored in the terminal. Store in the unit 45. The new corner coordinates are also part of the wall surface coordinates (coordinates indicating the position of the wall surface), which will be described in detail later, but for the sake of explanation, the corner 1 is distinguished from other wall surface coordinates (x, y). The coordinates of ˜6 are expressed as C1 (x, y) to C6 (x, y). The wall surface coordinates and the new corner coordinates are collectively referred to as floor plan coordinates.

FIG. 5 is a floor plan using the coordinate-converted coordinates, and is an explanatory diagram for explaining a method of obtaining the direction (dead angle) of the blind area that becomes the blind spot of the blow of the indoor unit 20. In addition, although the blind spot area is shaded for explanation, it is not included in the actual floor plan data.
The indoor unit 20 is disposed below the floor plan in FIG. 5, and the center of the rear side of the indoor unit 20 is a reference point coordinate PC (0, 0). And each corner of the floor plan is C1 (2,0), C2 (2,8), C3 (-4,8), C4 (-4,3), C5 (-2,3), C6 (- 2, 0). Then, the interior space on the left side of the virtual straight line extending from the reference point coordinates PC (0, 0) to the left wall in FIG. 5 by grazing the corner C5 (−2, 3) is the blind spot area, and the right side of this straight line is the air conditioning. It is an area. Further, the corner C5 (−2, 3) that causes the generation of the blind spot area is the blind spot corner. A method for detecting the blind spot area and the blind spot corner will be described later.

Next, operations related to the present invention will be described with reference to FIGS.
First, the detection principle of the blind spot area will be described. The blind spot area is an area that cannot be directly seen from the indoor unit 20. In FIG. 5, the wall surfaces from the corner C4 to the corner C5 and from the corner C4 to the wall surface coordinate W (−4, 6.75) cannot be directly seen from the indoor unit 20. That is, the wind blown from the indoor unit 20 does not directly reach the wall surface from the corner C4 to the corner C5 and from the corner C4 to the wall surface coordinate W (−4, 6.75).

  The blind spot angle detection unit 60 is the center of the left and right of the back of the indoor unit 20 and the angle in the left-right direction of 0 to 180 degrees with the wall surface on which the indoor unit 20 is installed as the center of rotation (reference point). A search is made as to whether or not a virtual straight line extending from the reference point (coordinate PC (0, 0)) intersects the wall surface only once. This is done by sequentially extending the length of the virtual straight line from the reference point of the indoor unit 20 and by checking whether it is equal to any of the wall surface coordinates from 0 degrees to 180 degrees while increasing the angle in the left-right direction sequentially. Explore.

  If the virtual straight line intersects the wall surface only once, the blind spot angle detection unit 60 stops the search at that angle. Therefore, when the virtual straight line does not intersect the wall surface once, the blind spot angle detection unit 60 determines that the wall surface constitutes the aforementioned blind spot area. The blind spot angle detection unit 60 first generates wall surface coordinates, erases the wall surface coordinates detected by the search, that is, the wall surface coordinates visible from the reference point of the indoor unit 20, and the remaining wall surface coordinates (reference point of the indoor unit 20). The wall surface coordinates that cannot be visually observed) are determined as the wall surfaces constituting the blind spot area. Then, the blind spot angle detection unit 60 determines that the remaining wall surface coordinates closest to the origin are the coordinates of the blind spot corner, and the virtual line and the indoor unit 20 from the reference point to the blind spot corner coordinates are installed. The angle formed by the straight line indicated by the wall surface is defined as the blind spot angle.

Next, the blind spot angle detector 60 will be described in detail.
The blind spot angle detection unit 60 shown in FIG. 2 includes a wall surface coordinate table generation unit (wall surface coordinate table generation unit) 61 that generates a wall surface coordinate indicating the position of the wall of the floor plan, and a virtual straight line extending from the indoor unit 20 to the right side. A right wall surface coordinate search unit 62 that searches whether or not it intersects the wall only once, and a left wall surface coordinate search unit 63 that searches whether or not a virtual straight line extending to the left from the indoor unit 20 intersects the wall only once. And a wall surface coordinate erasing unit (wall surface coordinate erasing means) 66 that deletes the wall surface coordinate from the wall surface coordinate table when the virtual straight line intersects the wall only once, and a blind spot angle from the wall surface coordinate remaining in the wall surface coordinate table. A blind spot angle calculation unit (dead angle calculation means) 64 and a blind angle transmission unit (dead angle transmission means) 65 for transmitting the calculated blind angle to the indoor unit 20. The right wall coordinate search unit 62 and the left wall coordinate search unit 63 constitute a wall coordinate search unit (wall coordinate search means) 67.

The wall surface coordinate table generation unit 61 generates wall surface coordinates indicating the wall surface of the floor plan from the floor plan coordinates stored in the terminal storage unit 45. However, the wall surface on which the indoor unit 20 is installed is excluded in advance from the generation target of the wall surface coordinates because the blow from the indoor unit 20 is not directly applied.
First, the wall surface coordinate table generating unit 61 increases y in the y direction at intervals of 0.25 meters from C1 (2, 0) to C2 (2, 8) shown in FIG. Generate coordinates up to. For example, W1 (2,0.25), W2 (2,0.5), W3 (2,0.75), W4 (2,1) to W30 (2,7.5), W31 (2,7. The coordinates are generated as in (75).

  Next, the wall surface coordinate table generating unit 61 decreases the value in the x direction from C2 (2,8) to C3 (-4,8) shown in FIG. Generate coordinates until. For example, W31 (1.75, 8), W33 (1.5, 8), W34 (1.25, 8), W35 (1, 8) to W53 (-3.5, 8), W54 (-3. Coordinates are generated as in 75, 8). Similarly, C3 (-4,8) to C4 (-4,3), C4 (-4,3) to C5 (-2,3), C5 (-2,3) to C6 (-2,0) Are stored in the terminal storage unit 45 as a wall surface coordinate table including each corner coordinate. When the generation of the wall surface coordinate table is completed, the wall surface coordinate table generation unit 61 outputs a creation completion signal to the right wall surface coordinate search unit 62 and the wall surface coordinate consumption unit 66.

The right wall surface coordinate search unit 62 relates to the space on the right side of the virtual straight line from the reference point coordinate PC (0, 0) to the wall surface coordinate W (0, 8). Investigate whether or not to meet.
The right wall surface coordinate search unit 62 sets x = 0.1 meter as an initial value and an angle θ = 0.1 degrees, and increases in increments of 0.1 degrees from θ = 0.1 degrees to θ = 90 degrees. Y is obtained by the following formula.
y = tan θ · x Equation 3
The right wall surface coordinate search unit 62 stops the search at the angle θ when the coordinate S (x, y) of the search point matches the x and y coordinates of any wall surface coordinate included in the wall surface coordinate table, The coordinate S (x, y) at that time is output to the wall surface coordinate consumption unit 66 as a coincidence coordinate signal.

  Next, the right wall surface coordinate search unit 62 sets x = 0.2 meters, and when the previous search ends at θ = 90 degrees, from θ = 0.1 degrees, the coordinates S of the search point in the previous search. If (x, y) and the coordinates in the wall surface coordinate table match, the search is continued until θ reaches 90 degrees from the angle (+0.1 degree) next to the angle at which the previous search was stopped. This is because there is only one point where the straight line shown by one angle and the wall intersect. Thus, the right wall surface coordinate search unit 62 repeats the search until θ reaches 90 degrees while increasing x in increments of 0.1 meters. When the value of x exceeds the distance d2 (8.25 meters), the right wall surface coordinate search unit 62 determines that the search has ended and outputs an end signal to the left wall surface coordinate search unit 63.

  In the example of FIG. 5, for example, when x = 2 and θ1 = 36.9 degrees, y = 1.5, and the coordinate S (x, y) of the search point and the wall coordinate W6 (2,1.5) And when x = 2 and θ2 = 41.2 degrees, y = 1.75, and the coordinate S (x, y) of the search point and the wall coordinate W7 (2,1.75) are Will be equal. Since the coordinates S (x, y) of the search point have a rounding error in the calculation, when the values are close to the wall surface coordinates, the coordinates S (x, y) of the search point and the wall surface coordinates W (x, y) ) Should match.

  On the other hand, the left wall surface coordinate search unit 63 makes one virtual straight line extending to the left side of the indoor unit 20 with respect to the space on the left side of the virtual straight line from the reference point coordinate PC (0, 0) to the wall surface coordinate W (0, 8). Just explore whether to cross the wall or not. The search method is the same as that of the right wall surface coordinate search unit 62. When the left wall surface coordinate search unit 63 determines that the coordinates S (x, y) of the search point and the wall surface coordinate W (x, y) coincide with each other, the wall surface coordinate search unit 63 uses the wall surface coordinate W (x, y). 66 is output as a coincidence coordinate signal. When the value of x exceeds the distance d3 (8.94 meters), the left wall surface coordinate search unit 63 determines that the search has ended and outputs an end signal to the wall surface coordinate consumption unit 66.

  The wall surface coordinate consumption unit 66 starts to operate when a creation completion signal is input from the wall surface coordinate table generation unit 61, and deletes the coordinates from the wall surface coordinate table when a coincidence coordinate signal is input. Then, when the end signal is input, the wall surface coordinate disappearance unit 66 outputs a disappearance residual coordinate signal, which is data of the wall surface coordinates remaining in the wall surface coordinate table, to the blind spot angle calculation unit 64.

  When the extinction residual coordinate signal is input, the blind spot angle calculation unit 64 obtains a coordinate in which x and y are closest to the coordinate PC (0, 0) of the reference point of the indoor unit 20 from the extinction residual coordinate. In FIG. 5, the wall surface coordinates in contact with the blind spot area are W60 (−4, 6.5) to C4 (−4, 3) and C4 (−4, 3) to W80 (−2.25, 3). , W80 (−2.25, 3) is the closest coordinate to the coordinate PC (0, 0) of the reference point. Accordingly, the blind spot angle calculation unit 64 extracts the corner coordinates closest to the coordinates, that is, C5 (−2, 3) that is the coordinates of the blind spot corner. The coordinates of this blind spot corner are located at the boundary between the blind spot area and the air-conditioning area where the air blows directly from the indoor unit 20 to the wall.

A hypothetical line connecting the reference point coordinates PC (0, 0) and the blind spot corner C5 (-2, 3) is the hypotenuse, and the reference point coordinates PC (0, 0) and C6 (-2, 0) are used. Since there is a right triangle relationship with the connecting straight line as the base, the blind angle calculation unit 64
tan θ = y / x: Substituting x = 2 and y = 3 into the following formula 5 obtained by transforming formula 4, calculates θd = 56.3 degrees, and uses this as a blind spot angle value, a blind spot angle transmission unit 65 Output to.

  The blind angle transmission unit 65 to which the blind angle value is input transmits this data from the terminal transmission unit 44 to the indoor unit reception unit 24.

Next, the left / right airflow direction control unit 70 will be described.
The left and right wind direction control unit 70 includes a blind angle receiving unit (dead angle receiving unit) 71 that receives blind angle data, a blind angle storage unit (dead angle storing unit) 72 that stores dead angle data, and a left and right wind direction plate. A left / right wind direction swing unit (left / right wind direction swing means) 73 that swings the wind direction left and right through the unit 22 and sequentially outputs a wind direction angle value that is the angle of the blowing wind direction, and a blind angle angle from the blind angle angle storage unit 72 , And a blind spot angle confirmation unit (dead angle confirmation means) 74 that outputs a swing pause signal when this value and the wind direction angle value are equal, and when the swing pause signal is input, the air volume is temporarily increased. An air volume adjusting unit (air volume adjusting means) 75 is provided. The blind spot angle confirmation unit 74 and the air volume adjustment unit 75 are referred to as an air conditioning correction unit (air conditioning correction unit) 76.

  When the left / right wind direction swing unit 73 receives an instruction to swing the wind direction in the left / right direction from the indoor unit control unit 25, the left / right wind direction swing unit 73 outputs a control signal for setting the designated wind direction angle to the left / right wind direction plate unit 22. Specifically, the left / right wind direction swing unit 73 outputs a stepping pulse corresponding to the wind direction angle to a stepping motor that operates a left / right wind direction plate (not shown).

  The left and right wind direction plate unit 22 can swing at a total angle of 90 degrees by 45 degrees to the left and right about the reference point coordinates PC (0, 0). The left and right wind direction swing unit 73 outputs a stepping pulse so as to swing back and forth between the leftmost 45 degree angle at which air can be blown and the rightmost 135 degree at which air can be blown.

  The left and right wind direction swing unit 73 updates the wind direction angle value in real time in a numerical range of 45 degrees to 135 degrees, and outputs the above-described stepping pulse so that the updated angle is obtained. Further, the left / right wind direction swing unit 73 simultaneously outputs a wind direction angle value, which is the updated angle, to the blind spot angle confirmation unit 74.

  The blind spot angle confirmation unit 74 to which the wind direction angle value has been input reads the blind spot angle from the blind spot angle storage unit 72, and outputs a swing pause signal to the left and right wind direction swing unit 73 when this value becomes equal to the wind direction angle value. The left and right wind direction swing unit 73 to which the swing pause signal is input temporarily stops updating the wind direction angle value described above. As a result, the blowing direction remains directed in the direction corresponding to the blind spot angle, and the indoor unit 20 can blow the air conditioned near the blind spot area for a longer time than at other wind direction angles.

On the other hand, the air volume adjusting unit 75 to which the swing pause signal is input increases the current air volume temporarily. For this reason, the indoor unit 20 can strongly blow air conditioned to the vicinity of the blind spot area as compared with other wind direction angles.
The blind spot angle confirmation unit 74 stops outputting the swing pause signal when a predetermined time, for example, 10 seconds elapses after the swing pause signal is output. Therefore, the left / right wind direction swing unit 73 resumes the update of the wind direction angle value and continues the swing operation. The air volume adjusting unit 75 returns the air volume that has been temporarily increased to the original state and blows air.

In addition, including the above-described method, the air-conditioning correction unit 76 performs air-conditioning when the left and right wind direction angles blown by the left and right wind direction swing unit 73 are blind angles compared to when the wind direction angle is not a blind angle. The control parameter is increased to control. Specifically, the air conditioning correction unit 76 increases the air volume, decreases the speed of deflecting the wind direction to the left or right, stops the deflection of the wind direction, or sets the temperature of the blown air during the heating operation. Control is performed to increase the temperature, or to lower the temperature of the blown air during cooling operation.
Further, the air conditioning correction unit 76 may execute at least one of these controls, or may execute a combination of a plurality of controls.

  As described above, the terminal device 40 (smart phone) creates a floor plan of the room, transmits the blind spot angle detected from the floor plan to the left and right wind direction control unit 70, and the left and right wind direction control unit 70 that has received the received blind angle. The direction of the boundary between the air-conditioning area and the blind spot area is stored according to the blind spot angle. And the indoor unit 20 compares the direction of this boundary with other directions and increases the control parameters for air conditioning, so that the space in the blind spot area can be brought close to the set temperature.

  Moreover, the present invention can be realized at low cost by using a widely used smartphone as the terminal device 40 and mounting the floor plan creation unit 50 and the blind spot angle detection unit 60 as application software.

In the present embodiment, the floor plan creation unit 50 generates the floor plan data semi-automatically. However, the present invention is not limited to this, and the floor plan data is generated by manually inputting dimensions between corners measured in advance by the user. Also good.
In the present embodiment, each functional block is described as hardware. However, the present invention is not limited to this, and may be realized by software.
Further, in the present embodiment, the blind angle detection unit 60 is provided in the terminal device 40, but is not limited thereto, and is provided anywhere in the air conditioner system 1, for example, in the indoor unit control unit 25. It may be.
In this embodiment, the terminal device 40 and the indoor unit 20 are connected by communication using infrared rays. However, the present invention is not limited to this, and a wireless LAN may be used instead of infrared rays.

DESCRIPTION OF SYMBOLS 1 Air conditioning system 2 Front center point 3 Floor and wall boundary 4 Directly below position 5 Horizontal reference line 6 Vertical reference line 20 Indoor unit 21 Indoor unit memory | storage part 22 Left-right wind direction board unit 23 Vertical wind direction board unit 24 Indoor unit receiving part 25 Indoor Machine control unit 26 Blower fan motor 30 Outdoor unit 40 Terminal device 40A Terminal device 40a Center point 40b Lens 41 Imaging unit 42 Gyro sensor 43 Touch panel 44 Terminal transmission unit 45 Terminal storage unit 46 Display unit 47 Terminal control unit 50 Floor plan creation unit (Room plan creation means)
51 Reference distance measuring unit (reference distance measuring means)
52 Corner distance measuring unit (corner distance measuring means)
53 Coordinate calculator (coordinate calculator)
54 Coordinate converter (coordinate converter)
55 Corner angle measuring unit (corner angle measuring means)
60 Blind angle detection unit (blind angle detection means)
61 Wall coordinate table generator (wall coordinate table generator)
62 Right wall surface coordinate search unit (wall surface coordinate search means)
63 Left wall surface coordinate search unit (wall surface coordinate search means)
64 Blind angle calculation unit (blind angle calculation means)
65 Blind Spot Angle Transmitter (Blind Angle Transmitter)
66 Wall coordinate eraser (Wall coordinate eraser)
67 Wall coordinate search unit (wall coordinate search means)
70 Left and right wind direction control unit (left and right wind direction control means)
71 Blind angle angle receiver (blind angle angle receiving means)
72 Blind angle storage unit (blind angle storage unit)
73 Left and right wind direction swing part (left and right wind direction swing means)
74 Blind angle confirmation unit (Blind angle confirmation means)
75 Airflow adjustment unit (airflow adjustment means)
76 Air conditioning correction unit (air conditioning correction means)
H straight line

Claims (1)

An indoor unit comprising left and right wind direction plate units for deflecting the air-conditioned blown air to the left and right, and left and right wind direction control means for controlling the left and right wind direction plate units;
Arranged in the room where the indoor unit is installed,
A terminal device that transmits information on the direction of a blind spot area that cannot be directly air-conditioned by air-conditioned air sent out from the left and right wind direction plate unit to the indoor unit,
The left and right wind direction control means is
Based on the received information on the direction of the blind spot area, when it is determined that the blowing direction controlled by the left and right wind direction control means is close to the direction of the blind spot area, the control parameter for performing the air conditioning is the control parameter for the blowing direction. An air conditioner system comprising air conditioning correction means for controlling the size of the blind spot area larger than that before approaching the blind spot area.

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