JP3561224B2 - Control device and control method for electric blind - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a control device for an electric blind that automatically controls the amount of sunlight entering a room, and particularly to a control device for an electric blind having a control function corresponding to the shade when the shade is caused by an adjacent building or the like. The present invention relates to a control device.
[0002]
[Prior art]
The electric blind control device automatically controls the blind opening and slat angle of the electric blinds installed on the windows provided on the wall of the building to block direct sunlight or reduce the amount of light collected indoors. It is for optimal control.
[0003]
Such a control device calculates the azimuth and altitude of the sun that changes with time, calculates the optimal slat angle to block direct light based on the calculation result, and calculates each slat angle based on the calculated slat angle. It controls the angle of the slat.
[0004]
In addition, a sensor for measuring the brightness of the sky is provided, and a function of stopping the above control is provided in rainy or cloudy weather without direct light.
In an actual building environment, the surrounding buildings may block direct light reaching the windows, even in clear weather. In such a case, there is a demand to open the blinds as in the case of rainy weather or cloudy weather, and to respond to such a demand, a control device having a shade control function has been proposed.
[0005]
As an example of a control device for an electric blind having a shade control function, Japanese Patent Laid-Open Publication No. Hei 10-72985 discloses that a sun 2 is viewed from the position of a window 1 and a barrier 3 is provided in the line of sight, as shown in FIG. A configuration is disclosed that determines by calculation whether or not there is a building, that is, whether or not the plane of the barrier 3 and the line of sight L have an intersection.
[0006]
[Problems to be solved by the invention]
In a control device having a shade control function as described above, it is necessary to disassemble a building that blocks direct light into wall surfaces. If the outline of the building is composed of rectangular walls, and the rectangular walls are perpendicular to the ground, it is relatively easy to find the intersection of the rectangle and the straight line.
[0007]
In addition, if the left and right sides are vertical as well as the rectangle, the calculation is relatively easy even for a quadrilateral other than a rectangle.
However, in fact, not only buildings that meet such conditions, the general-purpose calculation formula for finding the intersection of an arbitrary plane in a three-dimensional space with a straight line is very complicated, and this is used for blind control. It is difficult to introduce.
[0008]
Also, when a building having a complicated shape is decomposed into planes, the number of planes becomes extremely large. Therefore, there is a problem that the amount of calculation is enormous, such as the work of disassembling the plane and the work of setting the coordinates of each plane.
[0009]
Furthermore, since it is determined whether the straight line facing the sun from the window and the plane that disassembles the building have intersections, it is necessary to repeat the determination work for all windows, and the calculation amount is enormous at this point as well. There is a problem that becomes.
[0010]
An object of the present invention is to provide a control device for an electric blind capable of easily implementing shade control.
[0011]
[Means for Solving the Problems]
According to claim 1, it is determined whether or not the first building in which the electric blind is installed in the window is shaded by the surrounding second building, and based on the result of the judgment, the electric blind corresponds to the shade. In the control device of the electric blind performing the shade control, calculate the shade projected on the wall of the first building by the second building, and determine whether the window is located in the shade, A shade control unit that performs the shade control., The shade control unit disassembles the second building into a plurality of planes, and stores a plane shape data storage unit that stores coordinate data of a contact point of a line segment surrounding each plane as plane shape data, and the first building A window data storage unit that stores coordinate data of a corner of the window, a shade coordinate calculation unit that calculates coordinates of a shade projected on a wall surface of the first building based on the plane shape data, And a shade determination unit that determines whether the window is located in the shade based on the coordinates data of the corner of the window and the shade based on the determination result of the shade determination unit. A shade control unit for performing shade control of the shade display unit, wherein the shade determination unit displays a figure indicating the shade on a screen of a display device, and determines whether the window is located in the figure based on a figure processing program. By determining whether or not Determining whether the window is located within the shade.
[0012]
In claim 2,It is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and shade control corresponding to the shade is performed on the electric blind based on the determination result. In the control device for the electric blind, the shade projected on the wall surface of the first building by the second building is calculated, and it is determined whether the window is located in the shade, and the shade control is performed. Equipped with a shade control unit,The shade control unit decomposes the second building into a plurality of planes, and stores a plane shape data storage unit that stores coordinate data of a contact point of a line segment surrounding each plane as plane shape data, A window data storage unit that stores coordinate data of a corner of a window; a shade coordinate calculation unit that calculates coordinates of a shade projected on a wall surface of the first building based on the plane shape data; Coordinates, based on the coordinate data of the corners of the window, a shade determination unit that determines whether the window is located in the shade, based on the determination result of the shade determination unit, based on the determination result of the electric blind And a blind control unit that performs shade control.The shade determination unit calculates whether the coordinates of the four corners of the window are located within the range of the coordinates of the shade based on a calculation program set in advance, so that the window is located in the shade. Judge whether or not.
[0015]
Claim3ThenIt is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and shade control corresponding to the shade is performed on the electric blind based on the determination result. In the control device for the electric blind, the shade projected on the wall surface of the first building by the second building is calculated, and it is determined whether the window is located in the shade, and the shade control is performed. A plane shape data storage unit comprising a shade control unit, wherein the shade control unit decomposes the second building into a plurality of planes, and stores coordinate data of contact points of line segments surrounding each plane as plane shape data, A window data storage unit that stores coordinate data of corners of windows of the first building, and shade coordinate calculation that calculates coordinates of a shade projected on a wall surface of the first building based on the planar shape data. Part and the shade A shade determination unit that determines whether or not the window is located in the shade based on the mark and the coordinate data of the corner of the window, and a shade determination unit that determines whether or not the electric blind is based on a determination result of the shade determination unit. A blind control unit that performs shade control,The shade coordinate calculation unit is a first shade coordinate calculation program for sequentially projecting a solid formed between adjacent planes of the plurality of planes to calculate shade coordinates, and A second shade coordinate calculation program for sequentially projecting solids formed between a pair of planes to calculate shade coordinates, and a third shade coordinate calculation program for projecting each of the plurality of planes to calculate shade coordinates. And any one of the first to third shade coordinate calculation programs can be selected to calculate shade coordinates.
[0016]
Claim4ThenIt is determined whether the first building in which the electric blind is installed in the window is shaded by the second building around it, and based on the result of the judgment, the electric blind is subjected to shade control corresponding to the shade. In the electric blind control method to be performed, the second building is decomposed into a plurality of planes, coordinate data of contact points of line segments surrounding the respective planes is calculated as plane shape data, and four corners of the window of the first building are calculated. Calculate the coordinate data of the shade, based on the planar shape data, calculate the coordinate data of the shade projected on the wall surface of the first building, the coordinate data of the shade and the coordinate data of the corner of the window into And determining whether or not the window is located in a shade based on the result of the determination.Based on the determination result, a method of controlling an electric blind installed in the window, the method of controlling an electric blind, comprising: Show It displayed on the screen of the display device in the form, based on the graphics processing program, by the window to determine whether located within the graphic, and determines whether the window is located within the shade.
[0017]
Claim5Then, it is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and the shade corresponding to the shade is determined for the electric blind based on the determination result. In the control method of the electric blind performing the control, the second building is decomposed into a plurality of planes, and coordinate data of a contact point of a line segment surrounding each of the planes is calculated as plane shape data, and the window of the first building is calculated. The coordinate data of the four corners is calculated, and based on the planar shape data, the coordinate data of the shade projected on the wall surface of the first building is calculated, and the coordinate data of the shade and the coordinate data of the corner of the window are calculated. Based on the above, it is determined whether the window is located in the shade, and based on the determination result, the shade of the electric blind installed in the window is controlled.A method for controlling an electric blind, comprising calculating whether or not coordinates of the four corners of the window are within the range of the coordinates of the shade based on a preset calculation program, so that the window is positioned within the shade. Determine if it is located.
In claim 6, it is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around the first blind, and based on the determination result, the electric blind is responded to the shade. In the control device of the electric blind performing the shade control, calculate the shade projected on the wall of the first building by the second building, and determine whether the window is located in the shade, A shade shape control unit that performs the shade control, wherein the shade control unit decomposes the second building into a plurality of planes, and stores coordinate data of contact points of line segments surrounding each plane as plane shape data. A data storage unit, a window data storage unit that stores coordinate data of corners of windows of the first building, and coordinates of shades projected on a wall surface of the first building based on the plane shape data. Shade coordinate calculator to calculate Based on the coordinates of the shade and the coordinate data of the corners of the window, a shade determination unit that determines whether the window is located in the shade, based on a determination result of the shade determination unit, A blind control unit that performs shade control of the electric blind, wherein the shade determination unit determines, based on a graphic processing program, whether or not the window is located in the figure showing the shade, It is determined whether the window is located in the shade.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an outline of a control device that controls the operation of electric blinds installed on each floor of a building.
[0019]
A plurality of floor controllers 13 are connected to the main controller 11 constituted by a personal computer via signal lines 12, and a number of blind controllers 14 are connected to each floor controller 13 via the signal lines 12.
[0020]
The main controller 11 controls each of the blind controllers 14 via the floor controller 13 based on the control data input from the input device and a program set in the main controller 11 in advance.
[0021]
The blind controller 14 is built in the head box of each electric blind, and controls the raising / lowering operation and the angle adjustment operation of the slat of the blind. Therefore, the operation of raising and lowering the slat of each electric blind and the operation of adjusting the angle are controlled based on control data input to the main controller 11 and a program preset in the main controller 11.
[0022]
A hand switch 15 provided near each electric blind is connected to each of the blind controllers 14. Then, based on the operation of the hand switch 15, the lifting and lowering operation and the angle adjusting operation of the slat can be controlled via the blind controller 14 of each electric blind.
[0023]
FIG. 2 shows an electrical configuration of the main controller 11. A control program for automatically controlling the electric blinds and an input program for inputting control data are stored in advance in a program memory 17 connected to the control unit 16, and the control unit 16 operates based on the programs. I do.
[0024]
The control program has a main control program for automatically controlling each electric blind based on a preset schedule and, when a window in which each electric blind is installed is shaded, takes precedence over control based on the schedule. In addition, a shade control program for performing control corresponding to shade is stored.
[0025]
The mouse 18 and the keyboard 19 connected to the control unit 16 are used for inputting control data and other input operations. The working memory 20 connected to the control unit 16 temporarily stores data generated based on the operation of the control unit 16, data input to the main controller 11 via the signal line 12, and the like. Used for
[0026]
An input / output interface 21 connected to the control unit 16 is connected to the signal line 12 and outputs control data or other signals output from the control unit 16 to the floor controller 13 via the signal line 12. At the same time, a signal output from each of the blind controllers 14 is received and input to the control unit 16.
[0027]
The display device 22 connected to the control unit 16 is composed of a CRT or a liquid crystal display device, and various input screens, setting screens, and the like are displayed by the control unit 16 that operates based on the programs.
[0028]
The data table 23 connected to the control unit 16 includes a calendar table, a data table in which altitude angles and azimuth angles of the sun for each date and time are calculated and stored in advance, and coordinates of surrounding buildings serving as barriers. A data table to be stored, a data table to store coordinates of a window in which an electric blind for performing shade control is installed, and the like are included.
[0029]
The illuminance sensor 28 connected to the control unit 16 detects the illuminance in the sky and outputs a detection signal to the control unit 16.
FIG. 20 shows an example of the window coordinate data. The window coordinate data is the window number. And the X and Y coordinates of the four corners C1 to C4 of each window are stored.
[0030]
Next, the processing operation of the shade control program will be described. In this program, as shown in FIG. 3, when the direct light from the sun 2 is blocked by the barrier 3, the range of the shade 25 projected on the wall surface 24 having the window is obtained, and the program exists in the shade 25. The shade is controlled for the electric blind installed in the window.
[0031]
FIG. 4 shows how to obtain coordinates. The first building 26 is a building on which the shade is projected, and the second building 27 is a building that serves as a barrier to the first building 26 to generate shade.
[0032]
In the first building 26, an extension of the wall on which the shade is projected is defined as the X axis, a straight line extending from one end of the wall in a direction perpendicular to the wall is defined as the Y axis, and is perpendicular to the intersection of the X axis and the Y axis. Is a Z-axis. The origin of the Z coordinate is the ground.
[0033]
Based on such coordinate settings, the second building 27 is decomposed into a plurality of planes, and the coordinates of each plane are set. That is, the coordinates of the plane are set by the coordinates (X, Y, Z) of the contact point P of a line segment surrounding the plane.
[0034]
When the second building 27 straddles the X-axis, the portion beyond the X-axis is located behind the wall on which the shade is projected, so that the planar shape is corrected to the shape cut off by the X-axis.
[0035]
Other than the coordinate setting as described above, the second building 27 is decomposed into planes in standard coordinates to create plane shape data, instead of using the wall of the first building 26 on which the shade is projected, The plane shape data may be subjected to coordinate conversion based on the orientation of each wall surface of the first building 26.
[0036]
In order to disassemble a building into planes and store it in a data table as plane shape data, for example, in a building shown in FIG. 5, eight points P1 to P8 of a line segment surrounding the plane on a plane constituting the upper surface thereof (X, Y, Z) and the coordinates of the eight contact points similarly forming the bottom surface are stored in the data table.
[0037]
At this time, if a curve is included in the outline of the plane, the curve is approximated by a plurality of line segments.
FIG. 19 shows an example of the planar shape data stored in the data table 23. The plane shape data has a file name, a data format, a wall direction, the number of data, and the like as a header, and a data portion representing each contact point on the plane has a building number for identifying a building that generates a shade for each contact point. , The plane NO. , The point NO. , X coordinate, Y coordinate, and Z coordinate of each contact point.
[0038]
The shade control program calculates the coordinates of the shade projected on the wall surface based on the planar shape data as described above. As the calculation method, three types of processing methods are set.
(First shade coordinate calculation method)
In the first shade coordinate calculation method, first, the coordinates of each contact point on the first plane are read from the data table 23 and stored in a register A which is a predetermined area in the working memory 20.
[0039]
Next, the coordinate data of each contact point on a plane adjacent to the plane read first is read and stored in the register B.
Then, the number of data in the register A and the number of data in the register B are compared. That is, unless the number of contact points on the two planes is the same, the side surface shape cannot be calculated by connecting the two planes.
[0040]
If the data numbers do not match, the contents of the register B are transferred to the register A, and the register B stores the coordinate data of each contact point on the new plane.
If they match, the side shape is calculated from the X coordinate, Y coordinate, and Z coordinate of each contact stored in the registers A and B. Then, based on the calculated plane and side shapes, the sun azimuth angle and the altitude angle, the coordinates at which the calculated side surface and plane are projected onto the first building 26 are calculated.
[0041]
Next, the coordinate data of the plane stored in the register B is transferred to the register A, and the coordinate data of the plane adjacent to the plane transferred to the register A is stored in the register B, and the same operation as above is repeated.
[0042]
Therefore, this calculation method is a method of calculating shade coordinates of a solid formed by successively connecting solids formed of two planes.
(Second shade coordinate calculation method)
In the second shade coordinate calculation method, a solid is calculated based on coordinate data of a pair of planes, and after calculating shade coordinates of the solid, a solid is calculated based on coordinate data of a new pair of planes.
[0043]
Therefore, in this calculation method, a solid formed by two planes is always in a separated state, and the shade coordinates based on the separated solid are calculated.
(Third shade coordinate calculation method)
The third shade coordinate calculation method does not calculate the shade coordinates of a solid, but calculates the shade coordinates of each plane based on the coordinate data of each plane. This calculation method is applied to a case where the shape of a building forming a shade is simple or a local plane which is not suitable to be treated as a solid.
[0044]
The shade control program calculates the shade projected on the first building 26 from the calculated solid or plane in each of the above-described shade coordinate calculation methods, and displays the shade on the display device 22.
[0045]
The calculation method will be described. As shown in FIG. 6, a point P (X, Y, Z) forming a solid or a plane is projected onto a wall p of the first building 26 at a point p (x, y, Z). The coordinate of z) is calculated by the following equation.
[0046]
here,
a is the relative sun azimuth viewed from the wall 24 of the first building 26 where the shade is formed
φ is the absolute sun azimuth, with true south at 0 ° and west at +
b is the absolute azimuth angle at which the wall surface 24 is oriented (0 ° in the south, + in the west)
x is the X coordinate of the projected shade point p
y is the Y coordinate of the projected shade point p
z is the Z coordinate of the projected shade point p
h is the altitude angle of the sun
And
When b <-90 ° and φ> 90 °
a = φ-b-360 °
b> 90 ° and φ <-90 °
a = φ-b + 360 °
Other than the above
a = φ-b
(In each case, the range is -90 ° <a <90 °, which is the front side of the wall surface)
x = XY-tan (a)
y = 0
z = ZY / cos (a) × tan (h)
The projection point is displayed on the screen of the display device 22 on the basis of the X coordinate and the Y coordinate of the point p calculated in this way, and the figure and the shade of the wall surface 24 are displayed at a predetermined position on the screen. Is used for multiplying the values of x and z by the magnification of the screen or adding a correction value to match the origin on the screen.
[0047]
Assuming that the corrected value of x is PX and the corrected value of z is PY, this data is stored in a predetermined point NO. Is stored in correspondence with. Also, PX and PY may be used without correcting the values of x and z.
[0048]
In this way, the projection point on the first building 26 of each contact point of the line segment surrounding the solid or the plane is calculated and stored in the register.
Then, by displaying a polygonal line connecting the projection points, the shade projected on the wall surface 24 is displayed. By repeating such an operation, the shade formed by all the solids or planes of the second building 27 is displayed on the display device 22.
[0049]
In addition, the shade control program has a shade determination function for determining whether each window is in the shade based on the figure indicating the shade displayed on the display device 22.
[0050]
That is, as shown in FIG. 7, a predetermined color is given to the figure F indicating the shade displayed on the screen. Then, the coordinate data of the four corners C1 to C4 of the window W stored in advance in the data table 23 are sequentially read, and the colors on the display device 22 corresponding to the four corners C1 to C4 are obtained.
[0051]
Then, if the color indicates a shade, “1” is set, and if not, “0” is stored in the data table as determination data.
If the determination results of the four corners C1 to C4 are all "1", the window W is positioned in the figure F and is determined to be in the shade, and any one of the determination results of the four corners C1 to C4 is determined. If it is “0”, it is determined that the window W is at least partially located outside the graphic F and is not completely located in the shade.
[0052]
Such a determination operation is performed on a large number of windows, and the determination result is stored in the shadow state memory in the data table 23 as, for example, data shown in FIG.
Such a determination operation may be performed in real time at the timing of controlling the operation of the blind, or, for example, during the night when the blind control is substantially stopped, calculating the shade of the next day, and The determination result may be stored in the data table in advance.
[0053]
The shade control program operates together with the main control program to perform shade control in parallel with blind control based on a preset schedule.
[0054]
The main control program controls how many blinds are opened and closed for each day of the week and hour based on data set in advance in a data table.
[0055]
In addition, the main control program calculates the altitude of the azimuth of the sun for each month, day, and time based on the data set in advance in the data table, and sets each slat angle to the optimal slat angle to block direct sunlight. Control the slats.
[0056]
Furthermore, based on the detection signal of the illuminance sensor 28, when it is determined that the illuminance of the sky is lower than a preset illuminance, the control for blocking the direct light is stopped and the blind is opened. .
[0057]
The shade control program operates in parallel with such a main control program, and the shade control is performed prior to the control operation by the main control program.
Next, the operation of the blind control device based on the above-described shade control program will be described.
[0058]
FIG. 8 is a flowchart showing an outline of the shade control. As shown in FIGS. 4 and 5, the control unit 16 first calculates the coordinates of a plane formed by decomposing the shape of the surrounding second building with reference to each wall surface of the first building 26, The data is stored in the data table 23 as shown in FIG. 19 (step 1).
[0059]
Next, the control unit 16 reads the planar shape data from the data table 23, and calculates the coordinates of the shade projected on the wall surface of the first building 26 based on the sun azimuth angle and the altitude angle also stored in the data table 23. It is calculated and displayed as a graphic on the display device 22 (step 2).
[0060]
Next, the control unit 16 reads the window data from the data table 23 and displays the window W on the display device 22 so as to overlap the shaded figure F on the display device 22 as shown in FIG. Then, the colors of the four corners C1 to C4 of each window W on the screen are determined, and as shown in FIG. 21, it is determined whether each window W is located in the shade or not, and the determination result is determined as a shadow state. It is stored in a memory (step 3). Note that the program may be configured to determine whether each window W is located in the shade without displaying the window W on the display device 22.
[0061]
Based on such a determination result, when performing normal blind control, the control unit 16 refers to the result of the shade determination, and controls the slats with respect to the shaded window in preference to the control for normally blocking the direct light. Shade control such as opening is performed (step 4).
[0062]
Next, the detailed operations of step 2 and step 3 will be described. The operations in steps 2 and 3 are based on the first shade coordinate calculation method.
As shown in FIG. 9, in step 2, the first surface NO. At the first point NO. Is read out and stored in the register A (step 11).
[0063]
Then, at the next point NO. Is read out and the data of the surface NO. Is determined (step 12), and the same surface NO. If so, the point NO. Is stored in the register A (steps 13 and 14), and the process returns to step 12. Then, the operations of steps 12 to 14 are repeated, and the same surface NO. Each point NO. Is stored in the register A.
In step 13, the surface NO. Are different, the process proceeds to step 15 shown in FIG. 10 and the data is stored in the register B, and the next point NO. Is read, and the point NO. Data and surface NO. Is determined (step 16).
Then, the surface NO. Are the same, the data is stored in the register B (steps 17 and 18), and it is determined whether or not all the planar shape data has been read (step 19).
[0064]
If it is determined in step 19 that the data is not the last data, steps 16 to 18 are repeated, and the same surface NO. Each point NO. Is stored in the register B.
In step 17, a new surface NO. When it is determined that the data is the data of the above, the data numbers of the respective planar shape data stored in the registers A and B, that is, the number of points are compared (step 20).
[0065]
If they are not the same, it is not possible to calculate the side surface shape by connecting the points constituting the two planes. Is read out and stored in the register B.
[0066]
That is, if it is determined in step 21 that the number of points of each planar shape data stored in the register A and the register B is not the same, it is determined in step 22 whether or not the data is the last data.
[0067]
If it is not the last data, the data stored in the register B is transferred to the register A (step 23), and the next point NO. Is read and stored in the register B (step 24).
[0068]
Then, the process proceeds to a step 16, wherein the next data is read out and the surface NO. Are confirmed, and steps 17 to 19 are repeated, and the same surface NO. Each point NO. Are stored in the register B, and the process proceeds to steps 20 and 21.
[0069]
If the number of data stored in the register A is equal to the number of data stored in the register B in step 21, the process proceeds to step 25 shown in FIG. 11, where the planar shape data stored in the register A and the data stored in the register B are stored. Based on the plane shape data, the coordinates of the shade projected on the wall surface of the first building 26 are calculated.
[0070]
In step 25, the first point NO. Then, the coordinates PX and PY of the projection point of the point on the wall surface of the first building 26 are calculated based on the sun azimuth angle and the altitude angle (step 26).
[0071]
Then, the coordinates PX and PY of the projection point are added to the register A (step 27), and it is determined whether or not all the coordinate data stored in the register A has been read (step 28).
[0072]
If it is not the last coordinate data, the next coordinate data is read from the register A (step 29), and the process returns to step 26. Then, steps 26 to 29 are repeated to calculate the coordinates PX and PY of the projection points corresponding to all points, and store the calculated coordinates PX and PY in the register A.
[0073]
In step 28, if the reading of the coordinates of each point stored in the register A has been completed, the process proceeds to step 30 in which each point NO. , The coordinates PX and PY of the projection point are calculated based on the coordinate data.
Next, the first point NO. Are read out (step 31), and then the next point NO. Are read out (step 32), and a straight line connecting the two coordinates is displayed on the screen of the display device 22 (step 33).
[0074]
Next, it is determined whether or not all the projection coordinate data PX and PY stored in the register A have been read (step 34), and if not all, the process returns to step 32 and repeats steps 32 to 34.
[0075]
By such an operation, all the projection coordinate data PX and PY stored in the register A are read out and connected by a straight line, and the shadow contour projected on the wall surface of the first building 26 is displayed on the screen. Is done. This outline shows the shade projected on the wall surface of the first building 26 based on the planar shape data stored in the register A. In step 35, a designated color set in advance is displayed inside the displayed shaded outline.
[0076]
Next, based on the coordinates PX and PY of the projection point stored in the register B, the same processing as in steps 31 to 35 is performed, and based on the planar shape data stored in the register B, the first building 26 The shaded outline projected on the wall surface is superimposed and displayed on the screen of the display device 22, and a designated color set in advance is displayed inside the shaded outline.
[0077]
Next, as shown in FIG. 12, the coordinates PX and PY of two corresponding points are read from the registers A and B (step 37), and an outline connecting the four points is displayed on the screen (step 37). 38). This contour shows a shaded contour projected on the first building 26 by the side surface of the second building 27.
[0078]
Next, a designated color set in advance is displayed inside the outline (step 39).
Then, it is determined from the register A and the register B whether the reading of the coordinates PX and PY of each two corresponding points has been completed (step 40), and if not completed, further processing is performed in step 41. The coordinates PX and PY of each two points are read out, and steps 38 to 40 are repeated to display the shades of all the sides in an overlapping manner.
[0079]
If the reading of the coordinates PX and PY of two corresponding points from the register A and the register B is completed in step 40, the process proceeds to step 42. That is, step 42 is to repeat steps 11 to 41, and the new surface NO. Is read out, the shade formed between the respective planes is calculated, and is displayed on the display device 22 sequentially.
[0080]
By such an operation, the shade projected on the wall surface of the first building 26 by the second building 27 is displayed on the display device 22.
After step 42 is completed, or when it is determined in step 22 that the data is the last data, the process proceeds to step 43 shown in FIG.
[0081]
That is, in step 43, the coordinates of the four corners C1 to C4 of one window are first read from the coordinate data of the window shown in FIG. 20, and the color of the coordinates is obtained.
Next, it is determined whether all four corners C1 to C4 are shaded or not (step 44). If all four corners C1 to C4 are shaded, it is determined that the window is located in the shade. “1” is stored in the shadow state memory indicated by 21 corresponding to the window (step 45).
[0082]
If at least one of the four corners C1 to C4 is not shaded, it is determined that the window is not located in the shade, and "0" is stored in the shadow state memory corresponding to the window (step). 46).
[0083]
Such an operation is performed for all windows (steps 44 to 48), and then the process proceeds to step 4 to perform the shade control together with the ordinary blind control.
In the shade control, when the ordinary blind control is to be performed based on a preset schedule, if the shade determination result of the target blind is “1”, the transmission of the command to block the direct light is stopped. Then, a command for controlling in the shade is transmitted.
[0084]
Also, when controlling a large number of electric blinds for each group, the shade control is performed when the shade determination is “1” for all the blinds of the group, or one window is controlled by the surrounding windows. The shade control may be performed when all the shade determinations are “1”.
[0085]
Further, the shade determination is performed both 10 minutes before the beginning time of the time interval for performing the shade determination and 10 minutes after the end time, and the shade control is performed only when both the shade determinations are “1”. By doing so, it is possible to prevent an erroneous operation of opening the blinds despite the presence of direct light.
[0086]
In the above embodiment, the following operation and effect can be obtained.
(1) When a shade is generated by the second building 27 around the wall of the first building 26 that performs the blind control, the electric blind installed in the window W located in the shade, Shade control such as opening the slat can be performed prior to normal blind control.
(2) The shade generated on the wall surface of the first building 26 is calculated and displayed on the display device 22, and whether or not each window W enters the shade is determined by a general graphic processing program. The determination process can be performed by a simple program.
(3) Shading is calculated by decomposing the second building 27 into a plurality of planes, calculating coordinate data of a contact point of a line segment surrounding each plane, and calculating the coordinate data of the contact point on the wall surface on the first building 26. This can be easily performed by calculating the coordinates of the corresponding projection points based on the azimuth and altitude angles of the sun and displaying the graphic connecting the projection points on the screen of the display device 22.
(4) Regardless of the shape or the inclination of the plane obtained by disassembling the second building 27, a shaded figure can be generated by calculating the projection point of the contact point. Therefore, the calculation of the shade can be processed by a simple calculation.
(5) Since the first to third shade coordinate calculation methods are set in advance as a method of calculating the shaded figure F by connecting the projection points, the optimum calculation method according to the shape of the second building 27 is set. Can be selected to generate the shaded figure F.
(6) Generating the shaded figure F based on the coordinates of the projection point and determining whether each window W is in the shade is based on the figure stored in the personal computer constituting the main controller 11 in advance. It can be easily performed based on the processing program.
(7) If the shaded figure F is displayed on the display device 22, it can be easily determined whether or not many windows W are located in the shade.
(Second embodiment)
In the shade control program according to the embodiment, the calculated shade figure F and the window W on the wall surface on which the shade is projected are displayed on the display device 22 in a superimposed manner, and each window is positioned within the shade. Whether or not to perform shading is determined by the graphic processing. In the shading control program of this embodiment, the shading is determined by calculation without displaying the shading and the graphic of the window on the display device 22.
[0087]
Explaining the shade determination method, p0 to p3 shown in FIG. 14 decompose the second building 27 into a plurality of planes, calculate plane shape data, and surround each plane based on the sun azimuth angle and the altitude angle. The coordinates at which the contact points of the line segments are projected on the wall surface of the first building 26 are obtained. A figure F1 formed by a straight line connecting p0 to p3 is a shade projected on the wall surface of the first building 26. Is shown. Note that this graphic F1 is not displayed on the display device 22.
[0088]
In order to determine whether the window W is within the shade, first, a line L1 perpendicular to the X axis is drawn at the X coordinate WX of one point WP among the coordinate data of the four corner points of the window W. .
[0089]
Next, the coordinates of the intersections T0 and T1 between the line segment constituting the contour of the figure F1 and the line L1 are obtained. If the Y coordinate WY of the point WP is between the Y coordinate of T0 and the Y coordinate of T1, the point WP is located in the shaded figure F1. If the intersection points T0 and T1 do not exist, the point WP is located outside the shaded figure F1.
[0090]
Assuming that the Y coordinate of T0 is TY, TY is obtained by the following equation.
TY = Y0 + (Y1-Y0) × (WX-X0) / (X1-X0)
Here, X0 is the X coordinate of p0, Y0 is the Y coordinate of p0, X1 is the X coordinate of p1, and Y1 is the Y coordinate of p1. The Y coordinate of T1 can be calculated in a similar manner.
[0091]
Such calculation is repeated for the four corner points of the window W. If all the four corners are located in the figure F1, the window W is located in the shade.
In the above calculation, if the X coordinate WX of the point WP matches the X coordinate of a line perpendicular to the X axis among the lines constituting the figure F1, the points at both ends of the line are It is determined whether or not there is a Y coordinate of the point WP between the Y coordinates.
[0092]
Further, for example, when the X coordinates of p0 and p1 become equal, there is no practical problem even if either X coordinate is slightly shifted.
FIG. 15 shows a case where the shaded figure F2 is not a quadrilateral. As shown in FIG. 14, if all the corners of the polygon constituting the figure F1 are outwardly convex, the intersection between the line L1 and the line segment constituting the figure F1 is two.
[0093]
As shown in FIG. 15, when the figure F2 is a polygon having a corner that is convex inward, the intersections of the line L2 and the line segments constituting the figure F2 are four or more even numbers. There is. For example, in FIG. 15, there are four locations T0 to T3.
[0094]
This is because the line L2 once inside the figure F2 always goes outside the figure F2, and therefore the number of intersections is always an even number. When the line L2 intersects the corner, the intersection may be appropriately counted as two points or one point, and the counting method may be set as an even number.
[0095]
A method of determining the shade of the window W with respect to the shade figure F2 shown in FIG. 15 will be described. First, a line L2 perpendicular to the X axis is drawn at the X coordinate WX of one of the four corner points WP of the window W. Next, the coordinates of the intersections T0 to T3 of the line segment constituting the figure F2 and the line L2 are calculated.
[0096]
Next, the intersections T0 to T3 are rearranged in ascending or descending order of the Y coordinate, and numbers T0 to T3 are assigned again in ascending or descending order. Then, the intersection between the intersections T0 and T1 is in the figure F2, the area between the intersections T1 and T2 is outside the figure F2, and the area between the intersections T2 and T3 is in the figure F2.
[0097]
Next, it is determined whether or not the point WP is located within the graphic F2 by calculating between which intersections the Y coordinate of the point WP is located.
Such calculation is repeated for the four corner points of the window W. If all the four corners are located in the figure F, the window W is located in the shade.
[0098]
Next, the operation of the shade control program for performing the above-described shade determination operation will be described.
This program first calculates the plane shape data by decomposing the second building 27 into a plurality of planes, as in the first embodiment. Next, as shown in FIG. 16, the coordinates at which the contact points of the line segments surrounding each plane are projected on the wall surface of the first building 26 are calculated based on the sun azimuth angle and the altitude angle, thereby forming the shaded figure F2. It is calculated (step 51).
[0099]
Next, from among the four corner points of one window W, the X coordinate WX and the Y coordinate WY of one point WP are read from the window data list stored in the data table 23 in advance (step 52).
[0100]
Next, the intersection of the line segment surrounding the figure F2 and the line L2 perpendicular to the X axis from the X coordinate WX is calculated (step 53).
Then, for example, when the intersections T0 to T3 exist as shown in FIG. 15, the Y coordinates of each of the intersections T0 to T3 are temporarily stored in the working memory 20 (steps 54 and 55).
[0101]
Next, as shown in FIG. 17, the intersections T0 to T3 are rearranged in descending order of the Y coordinate (step 56), and whether or not each intersection is shaded is set in order (step 57). It is determined whether or not the position of the coordinates WY is in the shade (step 58).
[0102]
Then, if it is a shade, the determination result of "1" is stored in the shadow state memory in the data table 23 (step 59).
Next, it is determined whether or not the shade determination has been completed for the four corners of one window (step 60). If not, the next point is selected (step 61), and steps 52 to 59 are performed. repeat.
[0103]
If there is no intersection in step 54, the process proceeds to step 60.
In step 60, when the shade determination has been completed for the four corner points of one window, the process proceeds to step 62 shown in FIG. 18, and it is determined whether the shade determination has been completed for all windows.
[0104]
If not, the next window is selected (step 63), and the process proceeds to step 52.
If the shade determination has been completed for all the windows in step 62, it is determined whether or not the next plane exists (step 64). If so, the next plane is selected. Then (step 65), the process proceeds to step 51.
[0105]
If the shade determination has been completed for all the planes in step 64, the process proceeds to step 66, and the data stored in the shadow state memory is confirmed. Then, if the data at each of the four corners of each window is all “1”, the window is comprehensively determined to be located in the shade, and “1” is stored in the shadow state memory. If all the data at the four corners are not "1", the window is comprehensively determined not to be located in the shade, and "0" is stored in the shadow state memory (steps 67 to 69).
[0106]
Based on such a shade determination result, shade control is performed together with normal blind control, as in the above-described embodiment.
In the above embodiment, in addition to the functions and effects (1), (4) and (5) obtained in the above embodiment, the following functions and effects can be obtained.
(1) The shade determination for determining whether each window is located in the shade can be automatically performed by calculation without displaying the figure indicating the shade and the figure indicating the window on the display device 22.
(2) Since there is no need to display a graphic on the display device 22 for shade determination, when a screen for performing normal blind control is displayed on the display device 22, the screen for shade determination is interrupted. Will not be displayed.
(3) Even if the shade projected on the first building 26 is an arbitrary polygon, the shade determination can be easily performed.
[0107]
The above embodiment can be modified as follows.
If the four corners C1 to C4 of the window W are set outside the actual corners of the window, a predetermined margin can be set for the shade determination.
The window W may be any polygon other than a quadrilateral.
[0108]
Technical ideas other than the claims disclosed in the above embodiment will be described below.
(1)PreviousThe shade determining unit determines whether or not the window is located in the shade by applying a predetermined color to the first graphic and determining the color of the coordinates of the corners of the second graphic. .
(2)PreviousThe shade determining unit draws a line orthogonal to the X axis on the X coordinate of the corner of the window in the XY coordinate space, and calculates the intersection of the line and a line segment surrounding the figure representing the shade, It is determined whether or not the window is located in the shade by determining whether the corner of the window is located in the shade based on the Y coordinate of the intersection.
[0109]
【The invention's effect】
As described in detail above, the present invention can provide a control device for an electric blind that can easily realize shade control.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a control device for an electric blind.
FIG. 2 is a block diagram illustrating an electrical configuration of a main controller.
FIG. 3 is an explanatory diagram showing an operation principle of a shade control program.
FIG. 4 is an explanatory diagram showing the operation principle of a shade control program.
FIG. 5 is an explanatory diagram showing the operating principle of a shade control program.
FIG. 6 is an explanatory diagram showing the operation principle of a shade control program.
FIG. 7 is an explanatory diagram showing the operating principle of a shade control program.
FIG. 8 is a flowchart showing an outline of a shade control operation.
FIG. 9 is a flowchart illustrating the operation of a shade control program.
FIG. 10 is a flowchart illustrating the operation of a shade control program.
FIG. 11 is a flowchart illustrating the operation of a shade control program.
FIG. 12 is a flowchart illustrating the operation of a shade control program.
FIG. 13 is a flowchart illustrating the operation of a shade control program.
FIG. 14 is an explanatory diagram illustrating an operation principle of a shade determination program according to the second embodiment.
FIG. 15 is an explanatory diagram illustrating an operation principle of a shade determination program according to the second embodiment.
FIG. 16 is a flowchart illustrating the operation of a shade determination program according to the second embodiment.
FIG. 17 is a flowchart illustrating an operation of a shade determination program according to the second embodiment.
FIG. 18 is a flowchart illustrating an operation of a shade determination program according to the second embodiment.
FIG. 19 is an explanatory diagram showing storage contents of a data table.
FIG. 20 is an explanatory diagram showing storage contents of a data table.
FIG. 21 is an explanatory diagram showing storage contents of a data table.
FIG. 22 is an explanatory diagram showing the operation principle of a conventional shade control program.
[Explanation of symbols]
16 Shade control unit (control unit)
17 Shade control unit (program memory)
23 Shade control unit (data table)
24 walls
25 shade
26 First Building
27 Second building

Claims (6)

It is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and shade control corresponding to the shade is performed on the electric blind based on the determination result. In the control device of the electric blind,
Calculate the shade projected on the wall of the first building by the second building, determine whether the window is located in the shade, comprising a shade control unit to perform the shade control ,
The shade control unit includes:
Decomposing the second building into a plurality of planes, a plane shape data storage unit that stores coordinate data of contact points of lines surrounding each plane as plane shape data,
A window data storage unit that stores coordinate data of a corner of a window of the first building;
Based on the plane shape data, a shade coordinate calculation unit that calculates the coordinates of the shade projected on the wall surface of the first building,
Based on the coordinates of the shade and the coordinate data of the corner of the window, a shade determination unit that determines whether the window is located in the shade.
A blind control unit that performs shade control of the electric blind based on the determination result of the shade determination unit,
The shade determining unit displays a graphic representing the shade on a screen of a display device, and determines whether or not the window is located in the graphic based on a graphic processing program. A control device for an electric blind, characterized in that it is determined whether or not the electric blind is positioned inside the electric blind. It is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and shade control corresponding to the shade is performed on the electric blind based on the determination result. In the control device of the electric blind,
Calculate the shade projected on the wall of the first building by the second building, determine whether the window is located in the shade, comprising a shade control unit to perform the shade control,
The shade control unit includes:
Decomposing the second building into a plurality of planes, a plane shape data storage unit that stores coordinate data of contact points of lines surrounding each plane as plane shape data,
A window data storage unit that stores coordinate data of a corner of a window of the first building;
Based on the plane shape data, a shade coordinate calculation unit that calculates the coordinates of the shade projected on the wall surface of the first building,
Based on the coordinates of the shade and the coordinate data of the corner of the window, a shade determination unit that determines whether the window is located in the shade.
A blind control unit that performs shade control of the electric blind based on the determination result of the shade determination unit ,
The shade determination unit calculates whether the coordinates of the four corners of the window are located within the range of the coordinates of the shade based on a preset calculation program, thereby determining whether the window is located in the shade. It is that electric dynamic blind controller, wherein the determining whether. It is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and shade control corresponding to the shade is performed on the electric blind based on the determination result. In the control device of the electric blind,
Calculate the shade projected on the wall of the first building by the second building, determine whether the window is located in the shade, comprising a shade control unit to perform the shade control,
The shade control unit includes:
Decomposing the second building into a plurality of planes, a plane shape data storage unit that stores coordinate data of contact points of lines surrounding each plane as plane shape data,
A window data storage unit that stores coordinate data of a corner of a window of the first building;
Based on the plane shape data, a shade coordinate calculation unit that calculates the coordinates of the shade projected on the wall surface of the first building,
Based on the coordinates of the shade and the coordinate data of the corner of the window, a shade determination unit that determines whether the window is located in the shade.
A blind control unit that performs shade control of the electric blind based on the determination result of the shade determination unit,
The shade coordinate calculator,
A first shade coordinate calculation program for sequentially projecting a solid formed between adjacent planes of the plurality of planes and calculating shade coordinates,
A second shade coordinate calculation program for sequentially projecting a solid formed between a pair of planes among the plurality of planes and calculating shade coordinates,
Each of the plurality of planes is projected, and a third shade coordinate calculation program for calculating shade coordinates is provided, and any one of the first to third shade coordinate calculation programs is selected, and it characterized in that to allow calculating coordinates electrostatic dynamic blind controller. It is determined whether the first building in which the electric blind is installed in the window is shaded by the second building around it, and based on the result of the judgment, the electric blind is subjected to shade control corresponding to the shade. In the control method of the electric blind to be performed,
Decomposing the second building into a plurality of planes, calculating coordinate data of contact points of lines surrounding the respective planes as plane shape data, calculating coordinate data of four corners of the window of the first building, Based on the planar shape data, calculate the coordinate data of the shade projected on the wall surface of the first building, and based on the coordinate data of the shade and the coordinate data of the corner of the window, the window is located within the shade. It is a method of controlling the electric blind which performs shade control of the electric blind installed in the window based on a result of the determination as to whether or not the figure is located on the screen of a display device. displaying, based on the graphics processing program, by the window to determine whether located within the graphic, electrostatic the window you characterized by determining whether located within the shade How to control moving blinds. It is determined whether the first building in which the electric blind is installed in the window is shaded by the second building around it, and based on the result of the judgment, the electric blind is subjected to shade control corresponding to the shade. In the control method of the electric blind to be performed,
Decomposing the second building into a plurality of planes, calculating coordinate data of contact points of lines surrounding the respective planes as plane shape data, calculating coordinate data of four corners of the window of the first building, Based on the planar shape data, calculate the coordinate data of the shade projected on the wall surface of the first building, and based on the coordinate data of the shade and the coordinate data of the corner of the window, the window is located within the shade. Is determined based on the determination result, based on the determination result, a method of controlling the shade of the electric blind installed in the window, wherein the coordinates of the four corners of the window is the coordinates of the shade. by calculating based whether located within the pre-set calculation program, a control method of that electrostatic dynamic blind to, wherein the determining whether the window is located within the shade . It is determined whether or not the first building in which the electric blind is installed in the window is shaded by the second building around it, and shade control corresponding to the shade is performed on the electric blind based on the determination result. In the control device of the electric blind,
Calculate the shade projected on the wall of the first building by the second building, determine whether the window is located in the shade, comprising a shade control unit to perform the shade control,
The shade control unit includes:
Decomposing the second building into a plurality of planes, a plane shape data storage unit that stores coordinate data of contact points of lines surrounding each plane as plane shape data,
A window data storage unit that stores coordinate data of a corner of a window of the first building;
Based on the plane shape data, a shade coordinate calculation unit that calculates the coordinates of the shade projected on the wall surface of the first building,
Based on the coordinates of the shade and the coordinate data of the corner of the window, a shade determination unit that determines whether the window is located in the shade.
A blind control unit that performs shade control of the electric blind based on the determination result of the shade determination unit,
The shade determining unit determines whether or not the window is located in the shade by determining whether or not the window is located in the figure indicating the shade based on a graphic processing program. Characteristic electric blind control device .

Images