JPH0746895Y2 - Sunlight tracking lighting device - Google Patents

Description

[Technical field] The present invention relates to a sunlight tracking and lighting device for introducing sunlight into a shaded area.

[Background Art] In recent years, in urban areas, there is a problem that a shaded area where sufficient sunshine cannot be obtained is generated due to overcrowding, high-rise building, and large-scale building. In order to solve such a problem, various types of sunlight tracking daylighting devices have been proposed, for example, a reflecting mirror installed on the roof of a building and rotated by a drive motor, and preset in a data storage unit. Based on the altitude of the sun, azimuth data, current time data output from the clock, correction data set according to the position of the shade where sunlight should be introduced and the height of the building And a tracking control unit that controls the drive motor based on the angle data output from the calculation unit to track the sun so that the light reflected by the reflection mirror is introduced into a predetermined shade. There was a solar tracking daylighting device. By the way, in such a sunlight tracking daylighting device, if the range of the shade portion where the sunlight should be introduced changes depending on the situation of the site, the number of installed solar light tracking daylighting devices may be increased or decreased. However, when multiple units are installed, the control circuit units such as the arithmetic unit and the tracking control unit will be duplicated, which will increase the size of the control circuit unit and increase the cost. there were.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to be able to easily cope with a change in the range of the shade portion into which sunlight should be introduced, and It is an object of the present invention to provide a sunlight tracking daylighting device in which the control circuit unit can be downsized and the cost can be reduced.

DISCLOSURE OF THE INVENTION (Embodiment) FIGS. 1 to 4 show an embodiment of the present invention.
The reflection mirror 2 made of a plurality of convex mirrors made of tempered glass or metal is installed on the roof of the building 1, and the height is controlled by the drive motor 3a for controlling the altitude angle and the drive motor 3b including the pulse motor for controlling the azimuth angle. It is configured to be rotated via the axis drive unit 4a and the azimuth axis drive unit 4b. Further, a temperature sensor is provided in the rotation mechanism section of the reflection mirror 2 including the drive motors 3a and 3b, the altitude axis drive section 4a, and the azimuth axis drive section 4b, and the drive monitoring section 8a uses the temperature sensor output based on the temperature sensor output. Therefore, the temperature of the rotating mechanism is monitored, and the cooling fan 9 is operated when the temperature exceeds a preset temperature. In the embodiment, the output of the drive monitoring unit 8a is input to the tracking control unit 13, and the cooling fan 9 is transmitted via the tracking control unit 13.
The operation of is controlled. The reflection mirror 2, the drive motors 3a and 3b, the drive units 4a and 4b, the drive monitoring unit 8a, and the cooling fan 9 are integrated as a rooftop block A. The rooftop block A has an altitude angle detection function of the reflection mirror 2. The section 5a, the azimuth angle detection section 5b, the anemometer 6, and the antenna 7 of the wireless reception section 16 described later are detachably provided. It should be noted that a plurality of rooftop blocks A are provided depending on the range of the shaded area where sunlight should be introduced. Further, a safety fence 8b is provided around the rooftop block A, and an interlock switch that operates when the safety fence 8b is removed is provided on the safety fence 8b. When the interlock switch is activated, The drive monitoring unit 9 detects this, and the tracking control unit 13 prohibits the rotation of the reflection mirror 2 to prevent danger.

Next, the arithmetic control unit 10, the altitude angle, azimuth data of the sun preset in the data storage unit 11, the current time data output from the clock unit, the position of the shade to introduce the sunlight and the. A calculation unit 12 that calculates angle data of the reflection mirror 2 based on the correction data set according to the height of the building 1.
And a tracking control unit 13 that controls the drive motors 3a and 3b based on the angle data output from the calculation unit 12 to track the sun so that the light reflected by the reflection mirror 2 is introduced into a predetermined shade. Is formed by. The portable wireless transmitter 15
The correction data can be input while watching the sunlight introduced into the shaded part. The correction data signal transmitted from the wireless transmission part 15 is received by the wireless reception part 16 via the antenna 7 and calculated. It is adapted to be input to the calculation unit 12 of the control unit 10. The indoor block B installed in an underground electric room or the like includes the arithmetic control unit 10, the wireless reception unit 16,
Wind speed detecting unit 17 including instantaneous wind speed detecting unit 17a and average wind speed detecting unit 17b, and drive circuits 18a and 18b of drive motors 3a and 3b.
It is formed of a motor drive unit 18 and an operation display unit 20 controlled by the operation display control unit 19. Here, the operation display unit 20 is an operation switch for setting the time and latitude of the clock unit and for setting the angle of the reflecting mirror 2 as appropriate.
20a and an operation display unit 20 including a display unit 20b that displays the operation state. The operation display unit 20 is detachably attached to the indoor block body 25, and can be installed at a position where it is easy to operate as appropriate. Here, the calculation unit 12
The tracking control unit 13 is capable of interlocking or individually controlling the angles of the plurality of reflection mirrors 2, and a plurality of motor drive units 18 are also provided. The auxiliary operation display unit 22 has the same function as the operation display unit 20, and the additional reflection mirror 2
The position of introduction of the sunlight is set and the operation state is displayed, and it is detachably connected to the indoor block B by a connector. In the figure,
The display device 21 is a large-scale demonstration display device made of a plasma display, and is provided, for example, in the entrance lobby.

The operation of the embodiment will be described below. Now, the data storage unit 11 stores the altitude angle and the azimuth data of the sun for one year, which is determined based on the latitude data and the data of the time of south-central time, and is stored in the arithmetic unit 12 including the microcomputer. The current time data (“day” and “time” data) output from the clock
The angle data of the reflection mirror 2 is calculated based on the correction data (data corresponding to the position of the shade portion where the sunlight should be introduced and the height of the building 1) transmitted from. Next, the operation switch of the operation display unit 20 installed at the position where it is easy to operate
In 20a, time data setting of the clock section, latitude data setting,
South Central time correction data setting, lock designation, maintenance designation, power on / off, etc. are set and the calculation unit 12
Then, based on these setting data, the altitude and azimuth of the sun are calculated by the following formula.

sinβ ′ ＝ sinψsinδ ＋ cosψcosδsint sinα ′ ＝ cosδsint / cosβ′β ′: solar altitude (horizontal 0 °, zenith 90 °) α ′; sun direction (south central 0 °, east 90 °, west 90 °) °) t: Time angle (0 ° for south-central time, 15 ° for 1 hour) ψ: Latitude of set location δ: Declination (coordinate position of the sun on the celestial sphere) Sun calculated in this way The altitude and azimuth of the vehicle are displayed together with the current time (day, time) and the wind speed on the display section 20b for displaying the operation state, and the same is displayed on the large display 21 for demonstration.

Next, the input operation of the correction data for introducing the sunlight into the predetermined shade is performed by the wireless transmission unit 15, and the operator who inputs the correction data is the wireless transmission unit.
Stand in the shade with 15 and appropriately operate the operation switch of the wireless transmission unit 15 to change the altitude angle β and the azimuth angle α of the reflecting mirror 2, and set the sun in a predetermined shade as shown in FIG. The angle of the reflection mirror 2 is adjusted so that light is introduced. By pressing the standby switch in this state, the optimum altitude angle and azimuth angle of the reflecting mirror 2 at the current time are recognized by the arithmetic unit 12, and the arithmetic unit 12 calculates the altitude angle β, the azimuth angle α, and the current time. Corresponding correction data (offset value) is calculated based on the altitude angle and azimuth angle of the sun read from the data storage unit 11, and thereafter the altitude angle β and azimuth angle of the reflecting mirror 2 are calculated based on this correction data. α is calculated. In this case, the correction data transmitted from the wireless transmission unit 15 is received by the wireless reception unit 16 via the antenna 7 provided in the rooftop block A and input to the calculation unit 12. Since the antenna 7 is provided in the vicinity of the reflection mirror 2 that can be directly viewed from the shadow, the radio wave transmitted from the wireless transmission unit 15 can be reliably received. Note that the correction data is set by the wireless transmission unit 15 when the sunlight tracking daylighting device is installed or when the shade portion where the sunlight is to be introduced is changed. Further, the correction data is data corresponding to the angle γ, and the correction data is obtained by inputting the height H of the building 1 and the distance 1 from the building 1 in the shaded area where the sunlight should be introduced by the reflection mirror 2. It may be calculated. The altitude angle data and the azimuth angle data of the reflecting mirror 2 calculated by the calculation unit 12 in this way are input to the motor drive unit 18 via the tracking control unit 13, respectively,
A drive motor that drives the advanced axis drive section 4a and the azimuth axis drive section 4b by the drive signal output from the motor drive section 18.
3a and 3b are controlled. In this case, the actual altitude angle β and the azimuth angle α of the rotating reflecting mirror 2 are detected by the altitude angle detection unit 5a and the azimuth angle detection unit 5b and fed back to the tracking control unit 13. ,
The tracking control unit 13 can accurately rotate the reflecting mirror 2 to a predetermined position (a position where sunlight can be introduced into a predetermined shade portion) based on the feedback signal. Further, in the embodiment, the altitude angle data and the azimuth angle data are output from the calculation unit 12 every minute, and the reflecting mirror 2 is intermittently driven to save power. Further, the reflecting mirror 2 is returned to the original state at the sunset when the sun is set, and is set to the standby state until the sunrise when the sun rises.

By the way, the drive monitoring unit 8a monitors the temperature of the rotation mechanism unit including the drive motors 3a and 3b, and the temperature of the rotation mechanism unit rises due to direct sunlight and heat generation of the drive motors 3a and 3b. A temperature rise detection signal is output when the temperature rises above a preset temperature. Tracking controller
In 13, when the temperature rise detection signal is received, an operation signal of the cooling fan 9 is sent to operate the cooling fan 9 to cool the rotation mechanism portion to reduce the output of the drive motors 3a and 3b and shorten the life. It is designed to prevent it.

Next, the wind speed detection signal output from the anemometer is the wind speed detection unit.
17 and the instantaneous wind speed detection unit 17a detects the instantaneous wind speed, and the average wind speed detection unit 17b detects the average wind speed, and the tracking control unit 13 detects the instantaneous wind speed and the average wind speed at predetermined levels. Reflection mirror 2 when the above
Is automatically locked by rotating the to a safe position that does not receive a large wind pressure. This lock is released automatically by setting "day", "time", and "wind speed" to be released.

Next, the auxiliary operation display unit 22 having the same function as the operation display unit 20 is connected to the indoor block B by a connector when the rooftop block A including the reflection mirror 2 is added according to the situation of the site, and the auxiliary operation display unit 22 is added. In addition to inputting the data necessary for setting the angle of the reflecting mirror 2, the operation state is displayed. In this case, by adding the outdoor block A and adding the auxiliary operation display unit 22, it is possible to easily cope with a change in the range of the shade portion where the sunlight should be introduced, and moreover, the calculation unit 12 and the tracking control. Since the section 13 can be shared, the control circuit section can be downsized and the cost can be reduced.

6 (a) shows the case where sunlight is introduced into the courtyard provided in the center of the building 1, and FIG. 6 (b) shows that the reflection mirror 2 is rotated 180 ° to the north side of the building 1. Shows the case where sunlight is introduced into the shaded area.

[Advantages of the Invention] As described above, the present invention uses the reflection mirror installed on the roof of the building and rotated by the drive motor, the altitude of the sun, the azimuth data, and the clock section preset in the data storage section. An arithmetic unit that calculates the angle data of the reflecting mirror based on the output current time data, the correction data set according to the position of the shade where the sunlight should be introduced, and the height of the building, and output from the above arithmetic unit In the sunlight tracking daylighting device consisting of a tracking control unit that controls the drive motor based on the angle data to track the sun so that the light reflected by the reflection mirror is introduced into a predetermined shade, Auxiliary operation that forms the above-mentioned computing unit and tracking control unit so as to control a plurality of rotating reflecting mirrors, sets the sunlight introduction position by the additional reflecting mirrors, and displays the operation status. The operation display section can be freely added, and the calculation section and the tracking control section are formed so that a plurality of reflection mirrors can be controlled. Since the light introduction position is set, it is possible to easily respond to changes in the shaded area where sunlight should be introduced, and the circuits of the control circuit unit such as the arithmetic unit and the tracking control unit can be used. Since they are commonly used, there is an effect that the size can be reduced (the installation space can be reduced) and the cost can be reduced. In other words, the present invention focuses on the fact that the basic data processing (latitude, longitude, time, sun position, etc.) for each reflecting mirror is common even when controlling a plurality of reflecting mirrors. By sharing the circuit of the calculation unit and the tracking control unit that are the data processing means of the mirror (for example, formed by one CPU), it is possible to greatly simplify the circuit configuration and reduce the size and cost. It is the one. In addition, the auxiliary operation display unit that can be freely added separately can set the sunlight introduction position by the added reflection mirror and display the operation state, so that operation of multiple reflection mirrors is easy. This is also possible, and it is easy to check the operation states of the plurality of reflection mirrors, and there is also an effect that the operability can be improved when the reflection mirrors are added.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention, and FIG.
FIG. 3A is a front view of a main part of the same, FIG. 2B is a side view of a main part of the same, FIG. 3A is a front view of a main part of the same, and FIG. 4 is a block circuit diagram of the same as above, and FIGS. 5 and 6 are operation explanatory diagrams of the same. 1 is a building, 2 is a reflection mirror, 3a and 3b are drive motors, 12 is a calculation unit, 13 is a tracking control unit, 20 is an operation display unit, 20a is an operation switch, 20b is a display unit, and 22 is an auxiliary operation display unit. is there.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akio Kurosaki 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) References JP-A-57-63504 (JP, A) JP-A-57-4014 ( JP, A)

Claims (1)

[Scope of utility model registration request] 1. A reflection mirror installed on the roof of a building and rotated by a drive motor, altitude, azimuth data of the sun preset in a data storage unit, current time data output from a clock unit, and the sun. A calculation unit that calculates the angle data of the reflecting mirror based on the correction data that is set according to the position of the shade where light should be introduced and the height of the building, and drive based on the angle data that is output from the calculation unit. In a sunlight tracking daylighting device consisting of a tracking control unit that controls the motor to track the sun so that the light reflected by the reflecting mirror is introduced into a predetermined shade, a plurality of reflections rotated by a drive motor. The calculation unit and the tracking control unit are formed so that the mirrors can be controlled, and the auxiliary operation display unit that displays the operation status while setting the sunlight introduction position by the additional reflection mirror can be freely added. Solar light tracking lighting apparatus characterized by a.