JP5087512B2 - Shutter device - Google Patents

Description

  The present invention relates to a shutter device.

As a shutter device, one that automatically controls the elevation and angle of a slat based on the sun position is known (see, for example, Patent Document 1). In the shutter device described in Patent Document 1, the position and orientation of the window surface on the earth where the shutter device is installed is set to the dip switch, and the setting value of the latitude, longitude, and orientation of the window surface is set at predetermined time intervals. The sun position relative to the window surface is calculated based on the time of day, the slat angle is calculated based on the calculated sun position, and the slat angle adjustment control is performed based on the calculated slat angle.
JP 2006-161309 A

  When the shutter device described in Patent Document 1 is installed in each of a plurality of windows such as a residence, the position and orientation of the window surface on the earth must be set by operating each dip switch for each shutter device. For this reason, it takes a lot of time to set the position and orientation of the window surface on the earth in each shutter device, and it requires training for workers regarding the installation work and the skill level of the workers. And costly.

  An object of the present invention is to provide a shutter device that can be easily installed without requiring a great deal of time and cost.

  The present invention is a shutter device provided on the outdoor side of an opening of a building frame, and is attached to the building frame and has a frame having an opening corresponding to the opening of the building frame, and opens and closes the opening of the frame A shutter curtain, a first sensor for detecting an incident direction of sunlight, and a second sensor for detecting an azimuth, and the first sensor has an opening for limiting an incident area of sunlight. A formed member and a two-dimensional position detecting element having a light sensitive region and disposed so that the light sensitive region is opposed to the opening of the member, and the first and second sensors are predetermined. The shutter curtain is operated based on the outputs from the first and second sensors.

  In the present invention, the first sensor that detects the incident direction of sunlight and the second sensor that detects the azimuth are provided in the frame body in a predetermined positional relationship, and the first sensor and the second sensor Since the operating state of the shutter curtain is changed based on the output, when the shutter device is installed, each dip switch is operated for each shutter device as in the shutter device described in Patent Document 1, and the position on the earth. There is no need to set the direction or direction. For this reason, it is possible to easily install the shutter device without requiring much time and cost.

  By the way, it is preferable that the first sensor is arranged so that the photosensitive region is horizontal. If the photosensitive area is horizontal, sunlight will enter the photosensitive area appropriately through the aperture, and the signal based on the position of the sunlight incident on the photosensitive area will be stable from the two-dimensional position detection element. Will be output. Thereby, the incident direction of sunlight can be detected with higher accuracy in a time zone in which there is a high demand for changing the operating state of the shutter curtain.

  However, when the shutter device is installed, the first sensor may not be arranged so that the photosensitive region is horizontal due to variations in the installation position. In the present invention, since the second sensor detects an orientation in an orthogonal coordinate system composed of three axes orthogonal to each other, even if the first sensor is not arranged so that the photosensitive region is horizontal, the first sensor By correcting the output of the second sensor using the output from the second sensor, the incident direction of sunlight is accurately detected, as in the case where the first sensor is arranged so that the photosensitive region is horizontal. It can be detected well.

  Preferably, the shutter curtain has a plurality of slats juxtaposed in the vertical direction, the plurality of slats are swingable, and an angle of each slat is changed as an operating state thereof.

  According to the present invention, it is possible to provide a shutter device that can be easily installed without requiring much time and cost.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description, the same reference numerals are used for the same elements or elements having the same function, and redundant description is omitted.

  With reference to FIG. 1, the structure of the shutter device S according to the present embodiment will be described. FIG. 1 is a perspective view illustrating a schematic configuration of a shutter device according to the present embodiment. As shown in FIG. 1, the shutter device S includes a frame 1, a shutter curtain 10, a drive unit 20, a sensor unit 30, and a control unit 50. The shutter device S is provided on the outdoor side of the window W (opening) of the building frame B.

  The frame body 1 is attached to the building frame B, and has an upper frame portion 3, a lower frame portion 5, and a pair of vertical frame portions 7. Each vertical frame portion 7 is arranged so as to connect corresponding end portions of the upper frame portion 3 and the lower frame portion 5. The upper frame portion 3 functions as a housing portion (shutter case) for housing the wound shutter curtain 10. Each vertical frame portion 7 functions as a guide rail that guides both left and right end portions of the shutter curtain 10. The frame body 1 has an opening 9 defined by an upper frame portion 3, a lower frame portion 5, and a pair of vertical frame portions 7. The frame body 1 is attached to the building frame B so that the opening 9 is positioned corresponding to the window W.

  The shutter curtain 10 has a plurality of slats 11 juxtaposed in the vertical direction and extends so as to extend between the pair of vertical frame portions 7, and opens and closes the opening 9 of the frame body 1. Each slat 11 is supported in a swingable manner.

  The drive unit 20 is a drive unit that changes the operating state of the shutter curtain 10, and is provided in the upper frame unit 3. The drive unit 20 includes a winding shaft 21 for winding and unwinding the shutter curtain 10, a drive motor 23 for rotating the winding shaft 21, and the like. The drive unit 20 changes the open / close range of the shutter curtain 10 as the operating state by winding or unwinding the shutter curtain 10. Further, the drive unit 20 swings each slat 11 to change the angle of each slat 11 as the operation state.

  The configurations and operations of the frame 1, the shutter curtain 10, and the drive unit 20 are known in the technical field (for example, Japanese Patent Application Laid-Open Nos. 2004-84387, 2006-132149, and 2004-3251). The detailed description will be omitted.).

  The sensor part 30 is provided in the upper frame part 3 as FIG. 1 shows. An opening 4 is formed in the upper frame part 3 so that sunlight enters the sensor part 30. The opening 4 may be covered with a protective window that transmits sunlight.

  As shown in FIGS. 2 to 4, the sensor unit 30 is orthogonal to the first sensor 31 for detecting the incident state of sunlight (in this embodiment, the incident direction of sunlight and the amount of solar radiation). A second sensor 32 for detecting an orientation in an orthogonal coordinate system composed of three axes (X axis, Y axis, and Z axis), a third sensor 33 for detecting outside air temperature, and a circuit board 34, And a housing 35 having a waterproof function. FIG. 2 is a plan view showing the configuration of the sensor unit. FIG. 3 is a schematic diagram for explaining the configuration of the sensor unit. FIG. 4 is a block diagram for explaining a configuration of a control system system of the shutter device according to the present embodiment.

  An opening 35a is formed in the housing 35, and a protective window 36 that transmits sunlight is provided so as to cover the opening 35a. The first sensor 31 and the second sensor 32 are disposed in the housing 35 in a state of being disposed on the circuit board 34. In the housing 35, an output signal from the circuit board 34 is taken out of the sensor unit 30, and the sensor unit 30 (first sensor 31, second sensor 32, third sensor 33, and circuit board 34). A waterproof connector 37 is provided to supply power. The protective window 36 can be made of glass, polycarbonate, or the like. The circuit board 34 is provided with a signal processing unit 34a.

  The first sensor 31 includes an aperture 38 and a two-dimensional position detection element (two-dimensional PSD) 39. The aperture 38 is disposed on the inner surface of the housing 35 in the protective window 36 so as to correspond to the opening 35 a of the housing 35. An opening 40 is formed in the aperture 38, and the sunlight incident area is limited by the opening 40.

  The two-dimensional position detection element 39 has a light sensitive region 41 and detects a two-dimensional incident position on the light sensitive region 41 when it enters the light sensitive region 41. That is, the two-dimensional position detection element 39 outputs a signal based on the position of sunlight that enters the photosensitive region 41 through the opening 40, that is, the incident position of sunlight. The two-dimensional position detection element 39 is formed on one main surface of the circuit board 34 so that the photosensitive region 41 faces the opening 40 formed in the aperture 38 in a state where the photosensitive region 41 is parallel to the aperture 38 and has a predetermined interval. Has been placed. Here, “sunlight” includes not only direct light from the sun but also indirect light such as reflected light or diffused light from adjacent buildings or the like, or diffused light from clouds.

  The configuration of the two-dimensional position detection element 39 is known (for example, Japanese Patent Laid-Open No. 4-104019), and detailed description thereof is omitted. However, the two-dimensional position detection element 39 includes a photosensitive region 41 and four signal extraction electrodes. Thus, the two-dimensional position of the light incident on the photosensitive region 41 can be detected based on the output currents from the four signal extraction electrodes (anode electrodes). Each output current of the first sensor 31 (two-dimensional position detection element 39) is converted into a voltage signal by a current-voltage converter (not shown) and input to the signal processor 34a.

  The current-voltage conversion unit is configured to be able to switch the gain, and the gain is switched based on a switching signal from the signal processing unit 34a. Specifically, in a time zone in which the incident angle of sunlight is low, the amount of solar radiation itself decreases and each output current from the first sensor 31 decreases, so the gain is switched to a large value. The output of the switching signal from the signal processing unit 34a can be performed, for example, based on the time by a built-in clock.

  For example, a known triaxial electronic compass can be used as the second sensor 32. The second sensor 32 is disposed on the other main surface of the circuit board 34. In the present embodiment, as shown in FIGS. 5A and 5B, the two-dimensional position detection element 39 and the second sensor 32 include the X-axis and Y-axis of the two-dimensional position detection element 39 and the second axis. The X axis and the Y axis of the sensor 32 are coaxial, and the Z axis of the second sensor 32 is arranged so as to be orthogonal to the photosensitive region 41 of the two-dimensional position detection element 39. The output signal of the second sensor 32 is input to the signal processing unit 34a. The second sensor 32 may be composed of a biaxial electronic compass other than the triaxial electronic compass, or may be composed of a plurality of uniaxial electronic compasses.

  The signal processing unit 34 a is configured by a microcomputer or the like, and obtains the incident direction (elevation angle and incident angle) of sunlight and the amount of solar radiation based on the output from the first sensor 31. A method of obtaining the incident direction of sunlight based on the incident position of sunlight is known (for example, Japanese Patent Laid-Open No. 4-104019 or Japanese Patent Laid-Open No. 6-123654), and refer to FIG. 6 and FIG. Briefly.

  The position (x, y) of sunlight that has entered the two-dimensional position detection element 39 (photosensitive region 41) through the opening 40 is related to the output currents Ix1, Ix2, Iy1, and Iy2 from the four signal extraction electrodes. Are represented by the following formulas (1) and (2), respectively. However, the length of each side of the photosensitive region 41 (the light receiving surface length of the two-dimensional position detection element 39) is “L”.

  The elevation angle θ is expressed by the following equation (3) in relation to the position (x, y). Here, “d” is the distance between the photosensitive region 41 and the aperture 38.

  The incident angle φ is expressed by the following equations (4) to (6) in relation to the position (x, y).

  The amount of solar radiation can be calculated by converting a signal obtained by adding up the voltage signals based on a predetermined characteristic. Here, the predetermined characteristic is, for example, a characteristic obtained from an actual measurement value of total irradiance by the CIE standard light source A (color temperature 2856K). In this case, the amount of solar radiation is expressed as illuminance. .

  The signal processing unit 34a obtains the solar orientation based on the above-described incident angle φ and the output of the second sensor 32. This solar azimuth is the position of the sun on the absolute azimuth (the incident direction of sunlight), and the azimuth on the absolute azimuth of the reference axis (for example, the Y axis) in the two-dimensional position detection element 39 (photosensitive region 41). Is obtained based on the output of the second sensor 32, and is obtained by expressing the incident angle φ in an absolute direction. The signal processing unit 34a outputs the elevation angle and the sun direction of sunlight obtained as described above as signals. Here, the calculated absolute azimuth of the sun azimuth is defined as 360 ° around the east, south, and west with true north as 0 °.

  The signal processing unit 34a calculates the outside air temperature based on the output of the third sensor 33, and outputs a signal related to the outside air temperature.

  The control unit 50 is a control unit that controls the driving unit 20 so as to change the operating state of the shutter curtain 10 (in this embodiment, the angle of the slat 11, the winding and feeding of the shutter curtain 10, etc.), It is composed of a microcomputer or the like. The output of the sensor unit 30 is connected to the control unit 50, and a signal related to the elevation angle of sunlight, a signal related to the solar direction, a signal related to the amount of solar radiation, and a signal related to the outside air temperature are input to the control unit 50. The control unit 50 is provided in the upper frame portion 3.

  The control unit 50 obtains the angle of the slat 11 based on the input signal relating to the elevation angle of sunlight, the signal relating to the solar azimuth, the signal relating to the amount of solar radiation, and the signal relating to the outside air temperature, and the angle of the slat 11 becomes the obtained angle. Thus, a control signal is output to the drive unit 20 (drive motor 23).

  Processing operations in the sensor unit 30 and the control unit 50 will be described with reference to FIG. FIG. 8 is a flowchart for explaining processing operations in the sensor unit 30 and the control unit 50.

  When the processing operation starts, first, the signal processing unit 34a of the sensor unit 30 obtains the amount of solar radiation (illuminance) from the output of the two-dimensional position detection element 39, and outputs a signal related to the amount of solar radiation to the control unit 50 (S101). .

  The control unit 50 determines whether the illuminance is less than 100 lx, 100 lux or more, less than 1000 lux, or 1000 lux or more based on the signal related to the amount of solar radiation from the sensor unit 30 (S103). When the illuminance is less than 100 lux, the control unit 50 outputs a control signal to the drive unit 20 so as to extend the shutter curtain 10 and close the shutter curtain 10 (S105).

  When the illuminance is 100 lux or more and less than 1000 lux, the control unit 50 refers to the time information and the time is about 1.5 hours after the sunrise time or about 1.5 hours of the sunset time. It is determined whether it is before (S107). When it is within about 1.5 hours from the sunrise time or within about 1.5 hours of sunset time, the process proceeds to S105, and the control unit 50 outputs a control signal to the drive unit 20 so as to close the shutter curtain 10. To do. When the time is about 1.5 hours after the sunrise time or about 1.5 hours before the sunset time, the controller 50 drives the shutter curtain 10 to wind up and open the shutter curtain 10. A signal is controlled and output to the unit 20 (S109). The above-mentioned sunrise and sunset times are not limited to actual sunrise and sunset times, and may be times set by the user as appropriate. Also, the illuminance such as 100 lux or 1000 lux used for the determination in S103 may be the illuminance appropriately set by the user.

  Next, the signal processing unit 34a of the sensor unit 30 obtains the incident direction (elevation angle and incident angle) of sunlight from the output of the two-dimensional position detection element 39, and obtains the absolute direction from the output of the second sensor 32 ( S111 to S115). In S111, the signal processing unit 34a outputs a signal related to the elevation angle of sunlight to the control unit 50.

  Further, the signal processing unit 34 a obtains the solar azimuth based on the incident angle of sunlight from the two-dimensional position detection element 39 and the absolute azimuth from the second sensor 32, and sends a signal related to the solar azimuth to the control unit 50. It outputs (S117). At this time, the signal processing unit 34 a also outputs a signal related to the direction in which the frame body 1 is directed to the control unit 50 based on the output from the second sensor 32.

  Further, the signal processing unit 34a obtains the outside air temperature from the third sensor 33, and outputs a signal related to the outside air temperature to the control unit 50 (S119).

  When the control unit 50 obtains a signal relating to the amount of solar radiation, a signal relating to the elevation angle of sunlight, a signal relating to the solar azimuth, a signal relating to the azimuth in which the frame 1 is directed, and a signal relating to the outside air temperature, a slat is obtained based on these signals. 11 is calculated (S121). And the control part 50 outputs a control signal to the drive part 20 so that it may become the calculated angle of the slat 11 (S123). Thereby, the angle of the slat 11 is adjusted to a desired angle.

  As described above, according to the present embodiment, the two-dimensional position detection element 39 and the second sensor 32 are provided in the frame body 1 with a predetermined positional relationship, and the two-dimensional position detection element 39 and the second sensor 32 are provided. Since the operating state of the shutter curtain 10 is changed based on the output from the sensor 32, when the shutter device S is installed, each dip switch is set for each shutter device as in the shutter device described in Patent Document 1. There is no need to operate to set the position or orientation on the earth. For this reason, the shutter device S can be easily installed without requiring much time and cost.

  The preferred embodiments of the present invention have been described above. However, the present invention is not necessarily limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  In the embodiment described above, the arrangement position of the two-dimensional position detection element 39 and the second sensor 32 is not limited to the arrangement position in the above-described embodiment.

For example, as shown in FIGS. 9A and 9B, the Z axis of the two-dimensional position detection element 39 and the Z axis of the second sensor 32 are coaxial, and the XY of the two-dimensional position detection element 39. The axis may be arranged to rotate by a predetermined angle (θ _xy ) with respect to the XY axis of the second sensor 32. Further, as shown in FIGS. 10A and 10B, the two-dimensional position detection element 39 is arranged to be translated by a predetermined distance (m, n) in the XY axis direction with respect to the second sensor 32. It may be. Further, as shown in FIGS. 11A and 11B, the two-dimensional position detection element 39 moves in parallel to the second sensor 32 by a predetermined distance (m, n) in the XY axis direction and is two-dimensional. The XY axis of the position detection element 39 may be arranged to rotate by a predetermined angle (θ _xy ) with respect to the XY axis of the second sensor 32.

In the positional relationship shown in FIGS. 9 to 11, the position (x, y, z) of sunlight that has entered the two-dimensional position detection element 39 (photosensitive region 41) is corrected by the following equation (7). .

  As shown in FIGS. 12A and 12B, the second sensor 32 has one main surface orthogonal to the Y axis of the second sensor 32 on one main surface side of the circuit board 34. It may be arranged as follows. Of course, the second sensor 32 may be arranged such that one main surface and the X axis of the second sensor 32 are orthogonal to each other. In these cases, correction for an angle of 90 ° may be performed in the above equation (7).

  By the way, the two-dimensional position detection element 39 is preferably arranged so that the photosensitive region 41 is horizontal. When the photosensitive region 41 is horizontal, sunlight is appropriately incident on the photosensitive region through the opening, and is based on the position of the sunlight that has entered the photosensitive region 41 from the two-dimensional position detection element 39. The signal is output stably. Thereby, the incident direction of sunlight is changed in a time zone (for example, a range of about ± 3 to 4 hours in the south / central time) in which a request to change the operating state of the shutter curtain 10 is high, that is, in a desired range of the elevation angle of the sun. It is possible to detect with higher accuracy.

  However, when the shutter device S is installed, the two-dimensional position detection element 39 may not be arranged so that the photosensitive region 41 is horizontal due to variations in the installation position. In the present embodiment, since the second sensor 32 detects the orientation in an orthogonal coordinate system composed of three axes orthogonal to each other, as shown in (a) to (c) of FIG. Even when the two-dimensional position detection element 39 is not arranged so that 41 is horizontal, the light sensitive region 41 is horizontal by correcting the output of the two-dimensional position detection element 39 using the output from the second sensor 32. As in the case where the two-dimensional position detection element 39 is arranged so as to be, the incident direction of sunlight can be detected with high accuracy.

As shown in FIGS. 13A to 13C, when the Z-axis is inclined by the angle θ _xz , the movement distance in the X-axis direction is represented by m · sin θ _xz and the Z-axis is inclined by the angle θ _yz. The movement distance in the Y-axis direction is represented by n · sin θ _yz . For this reason, the position (x, y, z) of sunlight incident on the two-dimensional position detection element 39 (light sensitive region 41) is corrected by the following equation (8).

  In the present embodiment, the sensor unit 30 is provided in the upper frame unit 3, but is not limited thereto. For example, the sensor unit 30 may be provided on the upper frame unit 3. Further, the sensor unit 30 may be provided in the lower frame unit 5, the vertical frame unit 7, or the like other than the upper frame unit 3.

  The control unit 50 obtains the stop position of the shutter curtain 10 based on a signal related to the amount of solar radiation, a signal related to the elevation angle of sunlight, a signal related to the solar azimuth, a signal related to the azimuth in which the frame 1 is directed, and a signal related to the outside air temperature. The control signal may be output to the drive unit 20 so that the stop position of the shutter curtain 10 is the calculated position. In this case, the opening / closing range of the shutter curtain 10 is automatically adjusted.

  The shape of the opening 40 formed in the aperture 38 is not limited to a perfect circle, and may be any shape that is point-symmetric with the center of gravity located at the center, such as an ellipse, a rectangle, a star, or an X shape.

It is a perspective view which shows schematic structure of the shutter apparatus which concerns on this embodiment. It is a top view which shows the structure of a sensor part. It is a schematic diagram for demonstrating the structure of a sensor part. It is a block diagram for demonstrating the structure of the control system system of the shutter apparatus which concerns on this embodiment. It is a figure which shows the positional relationship of a two-dimensional position detection element and a 2nd sensor. It is a figure for demonstrating the calculation principle of the incident position of sunlight. It is a figure for demonstrating the calculation principle of the elevation angle of sunlight. It is a flowchart for demonstrating the processing operation in a sensor part and a control part. It is a figure which shows the positional relationship of a two-dimensional position detection element and a 2nd sensor. It is a figure which shows the positional relationship of a two-dimensional position detection element and a 2nd sensor. It is a figure which shows the positional relationship of a two-dimensional position detection element and a 2nd sensor. It is a figure which shows the positional relationship of a two-dimensional position detection element and a 2nd sensor. It is a figure for demonstrating the calculation principle of the incident position of sunlight in case the photosensitive region 41 inclines from the horizontal surface.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Frame body, 9 ... Opening part, 10 ... Shutter curtain, 11 ... Slat, 20 ... Drive part, 23 ... Drive motor, 30 ... Sensor part, 31 ... 1st sensor, 32 ... 2nd sensor, 34 ... Circuit board 34a ... Signal processing unit 38 ... Aperture 39 ... Two-dimensional position detecting element 40 ... Opening 41 ... Photosensitive region 50 ... Control unit B ... Building housing S ... Shutter device W ... Window

Claims (2)

A shutter device provided on the outdoor side of the opening of the building frame,
A frame attached to the building housing and having an opening corresponding to the opening of the building housing;
A shutter curtain that opens and closes the opening of the frame;
A first sensor for detecting the incident direction of sunlight;
A second sensor for detecting an orientation in an orthogonal coordinate system composed of three axes orthogonal to each other;
The first sensor has a member in which an opening for limiting an incident area of sunlight is formed, a light sensitive region, and the light sensitive region is disposed so as to face the opening of the member. A dimension position detecting element,
The first and second sensors are provided in the frame body in a predetermined positional relationship, and the operating state of the shutter curtain is changed based on outputs from the first and second sensors. Characteristic shutter device. The shutter curtain has a plurality of slats juxtaposed vertically;
The shutter device according to claim 1, wherein the plurality of slats are swingable, and an angle of each slat is changed as the operating state.