JPH0845312A - Sunlight beam collection control device - Google Patents

Abstract

PURPOSE:To provide a sunlight beam collection control device capable of correcting the deterioration of physical characteristics of a flat plate prism which is used for a long time in accordance with an installation place. CONSTITUTION:A light beam collection device is provided with a solar position detection device 9 for detecting the altitude and the azimuth of the sun at each point of time in the place in which a sunlight beam collection control device is installed and a central processing unit (CPU) 4, and the signal of the solar position at each point of time of the sun, which is provided from the solar position detection device 9, is supplied to the CPU 4, and the signal of the solar position is operation-processed in the CPU 4 to output a required command from the CPU 4. Thereby, the light collection device is controlled so that it comes into a proper position in accordance with the solar position. In that case, the light collecting device is constituted of a horizontally rotatable flat plate prism 1 and an irradiation state detection device of an optical axis sensor 11 and the like is disposed so as to face the flat plate prism 1 and it is desirable that a corrected rotational command is outputted from the CPU 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides more direct light according to the installation location of a solar lighting control device and the altitude, direction and time of the sun which changes throughout the year. The present invention relates to the improvement of the solar lighting control device.

[0002]

2. Description of the Related Art A conventional solar lighting control system is constructed as shown in FIG.

In the figure, reference numeral 1 is a flat plate prism serving as a daylighting section, and a plurality of triangular microprism sections 1 are provided on the lower surface.
Although not shown, teeth a that mesh with a gear 3 to be described later are formed while forming a. Reference numeral 2 is a motor, and 3 is a gear for rotating the flat plate prism 1 by the driving force of this motor. A central processing unit (hereinafter referred to as a CPU) 4 such as a microcomputer is assumed to have a storage function and a calculation function. 5 is CPU
4 is an input device for 4. Further, 6 is a connecting shaft of the gear 3 and the motor 2, and 7 and 8 are conducting wires.

In the above structure, the daily altitude data of the sun at this time, together with the data of the date and time from the input device 5,
Initial data regarding the bearing and the like is sent to the CPU 4.

Here, the CPU 4 gives a command of the rotation angle of the flat plate prism 1 obtained by arithmetic processing from the initial data to the motor 2 to drive the motor 2 to rotate the flat plate prism 1 via the gear 3. , Was tracking so that the direct light of sunlight could be properly collected.

[0006]

In the conventional solar lighting control device, it is time-consuming and costly to input accurate data matching the installation location into the input device due to its configuration as described above. It has the drawback of being expensive,
Put standard data in the input device and track the sunlight only by the data from the input device to control the CP
It was calculated by U.

However, since the initial data from the input device does not correspond to all the differences due to the difference in latitude and longitude depending on the installation place of the sunlight collecting control device, the difference due to the altitude of the sun, and the azimuth, each data at that place is not corresponded. There was a problem that the optimum lighting at the time could not be obtained. Moreover, the CPU is based on data that does not match the installation location.
There is also a problem that it takes time to perform control by.

Further, there is a problem in that even if the accuracy of the light input to the initially input data is deteriorated, it cannot be corrected due to the deterioration of the physical properties of the flat plate prism after many years of use.

The present invention has the above-mentioned problems (problems) of the conventional ones.
An object of the present invention is to provide a sunlight lighting control device that solves the above problem.

[0010]

In order to solve the above-mentioned problems, a sunlight collecting control device of the present invention includes a daylighting device, and the altitude and direction of the sun at each time point where the sunlight collecting control device is installed. It is provided with a central processing unit such as a sun position detecting device and a microcomputer for detecting, and gives a signal of the position of the sun consisting of the altitude and the azimuth of the sun given from the sun position detecting device to the central processing unit. A signal of the position of the sun is processed in the central processing unit, and a required command is issued from the central processing unit so that the daylighting device is controlled to an appropriate position corresponding to the position of the sun. As configured. Further, one or a plurality of flat plate prisms arranged in the daylighting unit and rotatable in the horizontal direction, a solar position detecting device for detecting the altitude and azimuth of the sun at each point in time where the sunlight lighting control device is installed, and A central processing unit such as a microcomputer is provided, and a signal of the position of the sun consisting of the altitude and azimuth of the sun given from the solar position detecting device is given to the central processing unit, and the signal of the position of the sun is given to the central It is also possible to perform arithmetic processing in the processing device and issue a required rotation command from the central processing unit to control the rotation of the flat plate prism so as to have an appropriate rotation angle corresponding to the position of the sun. it can.

In this case, in the above structure, a solar irradiation state detecting device is further arranged at a position facing the flat plate prism, and the position of the sun is defined by the altitude and direction of the sun given from the sun position detecting device. The signal of and the output signal from the irradiation state detection device is given to the central processing unit,
Each of these signals is processed in the central processing unit,
It is preferable that the central processing unit outputs a corrected rotation command to control the rotation of the flat plate prism so that the flat prism has an appropriate rotation angle corresponding to the position of the sun.

In this case, as the irradiation state detecting device, it is preferable to use an optical axis sensor when utilizing the direct light of the sun, and to use a light amount sensor when giving the relative position with respect to the sun by the amount of light.

[0013]

The solar lighting control device of the present invention comprises a lighting device, a sun position detecting device, and a central processing unit, and the sun position detecting device indicates the position of the sun such as the altitude and azimuth of the sun at each installation point. The signal is given to the central processing unit, and the central processing unit performs the calculation based on the output signal from the sun position detecting device, and issues a command to control the daylighting device so that it is at an appropriate position. Proper daylighting is performed indoors by tracking the sun.

Further, in the above construction, in which one or a plurality of flat plate prisms which can be rotated in the horizontal direction are arranged in the daylighting section to constitute a daylighting device, the sun position detecting device is the sun at each time point at the installation location. The signal of the sun position such as altitude and azimuth of the sun is given to the central processing unit, and the central processing unit calculates based on the output signal from the sun position detecting device and issues a rotation command to determine the prism angle of the flat plate prism. Since it is properly controlled, the amount of light that is tracked by the sun and collected indoors becomes appropriate.

In this case, the irradiation state detecting device is further installed so as to face the flat plate prism of the lighting section, and the output signal from the irradiation position detecting device as well as the output signal from the sun position detecting device is subjected to the central processing. If the signals are given to the device and these respective signals are calculated in the central processing unit and correction is performed based on the light amount at each time point or the optical axis, the light amount indoors can be further improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to first to third embodiments shown in FIGS. The basic feature of the present invention is that a sun position detecting device for detecting the position of the sun at each point in time at the installation location is provided.

First Embodiment: FIG. 1 shows a first embodiment of the present invention. In FIG. 1, the structure corresponding to the conventional one is denoted by the same reference numeral as in FIG.

In the figure, reference numeral 1 is a flat plate prism serving as a daylighting portion, and a plurality of triangular microprism portions 1 are provided on the lower surface portion.
Although not shown, teeth a that mesh with a gear 3 to be described later are formed while forming a. Reference numeral 2 is a motor, and 3 is a gear for rotating the flat plate prism 1 by the driving force of this motor. A central processing unit (hereinafter referred to as a CPU) 4 such as a microcomputer is assumed to have a storage function and a calculation function.

Further, 6 is a connecting shaft of the gear 3 and the motor 2, and 7
Reference numerals 8 and 8 respectively denote conductive wires, and the above 1 to 8 have the same structure as the conventional one.

Reference numeral 9 is a sun position detecting device, and this device 9 is installed to detect the position of the sun at each time point in the installation place. For example, as shown in FIG. 1 or a plurality of rotatable flat plate prisms P are arranged, and an irradiation state detecting device K and a central processing unit C such as an optical axis sensor or a light amount sensor arranged facing the flat plate prism P are provided. The prism angle of the flat plate prism P is controlled so as to rotate via the drive mechanism M corresponding to the position of the sun, and the incident light from the sun at each time is received to output the output signal from the irradiation state detection device K. The central processing unit C is configured to perform arithmetic processing. Note that N is an input device for the central processing unit C.

Returning to FIG. 1 again, reference numeral 10 is a conducting wire for giving the output signal of the sun position detecting device 9 to the CPU 4.

In the above-mentioned structure, the sun position detecting device 9 gives the CPU 4 a detection signal of the position of the sun at each point in time of installation, and the CPU 4 gives a rotation command to the motor 2 on the basis of this signal to cause the motor 2, The flat plate prism 1 is rotated via the gear 3.

Therefore, the flat prism 1 is always controlled to follow the sun so that the prism angle becomes proper.
It is possible to make the amount of light that is illuminated indoors appropriate.

Second Embodiment: FIG. 3 shows a second embodiment of the present invention. In the figure, most of the configuration is the same as that of the first embodiment.
The same reference numerals are given and the description thereof is omitted.

In this embodiment, in the structure of the first embodiment,
The structural characteristic is that the optical axis sensor 11 is arranged so as to face the flat plate prism 1, and the conducting wire 12 for transmitting the output signal of the optical axis sensor 11 to the CPU 4 is provided.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. In this case, the description will be given using the reference numerals ST1 to ST10 described in each step of FIG.

First, the sun position detector 9 gives a sun position signal indicating the altitude and azimuth of the sun to the CPU 4. The CPU 4 reads this signal (ST2), issues a rotation command, and activates the flat prism ( ST3).

Next, the output signal from the optical axis sensor 11 is C
Since this output signal is given to the PU 4 and is also read by the CPU 4 (ST4), the output signal of the optical axis sensor which should be given by the signal of the position of the sun previously read in the CPU 4 and the actual optical axis sensor 11 The given output signal is compared to determine whether this is the optimum one (ST5).

If this determination is optimum (YES), the correction control for the flat plate prism 1 is not performed (ST10).

However, if this determination is not suitable (NO), the rotation control for correcting the prism angle of the flat plate prism 1 is performed (ST6 to ST10).

As described above, in the present embodiment, the output signal from the optical axis sensor 11 at each time point is given to the CPU 4, so that the output signal from the sun position detecting device 9 causes the flat plate prism to pass through the CPU 4. Since the optical axis control of No. 1 is always corrected,
The amount of light collected indoors is further improved as compared with that of the above embodiment.

Third Embodiment: FIG. 5 shows a third embodiment of the present invention.

In the figure, the same components as those in the second embodiment are designated by the same reference numerals as those in FIG. 3 and their explanations are omitted.

In the present invention, instead of the optical axis sensor 11 in the second embodiment, a light quantity sensor 13 is arranged so as to face the flat plate prism 1, and an output signal of this light quantity sensor 13 is transmitted by the CPU 4. A feature of the configuration is that 14 is provided.

In the present embodiment, the lighting control in the first embodiment is performed by correcting the rotation command of the flat plate prism 1 via the CPU 4 based on the light amount signal given from the light amount sensor 13 to the CPU 4 at each time point. It's something you want to do.

That is, during each step of the flow chart shown in FIG. 6, the CPU 4 reads the output signal of the light amount sensor 13 in ST4, so that the CPU 4 has already passed the CPU 4 based on the detection signal from the sun position detecting device 9. It is controlled in ST5 to check whether the amount of light collected from the flat plate prism 1 is the optimum amount of light corresponding to the position of the sun, and the control is performed so as to be optimum (ST5 to S5.
T10), the point that the light amount is used as the detection amount of the correction control is
This is different from the second embodiment.

In each of the above-described embodiments, the case where the flat plate prism provided in the daylighting section is one has been described for simplification, but the flat plate prism arranged in the daylighting section may be a plurality of flat prisms such as two. The present invention is applied, and the lighting efficiency is improved when a plurality of sheets are used.

2 shows an example of the configuration of the sun position detecting device 9 in each of the above-mentioned embodiments, other than the configuration of FIG. 2 as long as the sun position at each time point can be detected. Of course, it is okay.

When the structure shown in FIG. 2 is used, in the structure shown in FIG. 2, the plate prism P is the plate prism 1, the driving mechanism K is the motor 2, the gear 3, and the central processing unit C is the CPU 4. Further, since the irradiation state detection device K has the same configuration as the optical axis sensor 11 or the light amount sensor 13 in each of the first to third embodiments, these common configurations are the same in the CPU 4. By devising the program processing, it is possible to omit part or all of the configuration.

[0040]

Since the sunlight collecting control means of the present invention is constructed as described above, the following excellent effects can be obtained. (1) Equipped with a sun position detector in addition to a daylighting device and a CPU,
Since the position of the sun at each installation location can be detected by this sun position detection device, C based on this detection signal can be detected.
It is possible to use the calculation result of the PU to match each time point of the installation location, track the sun, and perform proper lighting indoors. (2) Also, in a case where a daylighting device is configured by arranging one or more flat plate prisms that can be rotated in the horizontal direction, the sun position detecting device is the sun such as the altitude and direction of the sun at each installation point. To the central processing unit,
The central processing unit performs a calculation based on the output signal from the sun position detecting device, and issues a rotation command to properly control the prism angle of the flat plate prism, so that the amount of light that is tracked by the sun and indoors is determined. Can always be appropriate. (3) Furthermore, in addition to the sun position detection device, if an irradiation state detection device such as an optical axis sensor or a light amount sensor is installed and the rotation control of the flat prism is corrected and controlled from the optical axis or the light amount at each time point, It is possible to further greatly improve the amount of light that is lit in. (4) Also, in the case where the irradiation state detection device is provided as in the above (3), the light quantity or the optical axis at each time is always detected, so that the physical properties of the flat plate prism can be determined by using it for many years. Even if the accuracy of lighting deteriorates due to deterioration, the correction is properly performed.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram including a control circuit showing a first embodiment of the present invention.

FIG. 2 is a schematic configuration diagram showing a configuration of a sun position detecting device used in the device of the present invention.

FIG. 3 is a schematic configuration diagram including a control circuit showing a second embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the second embodiment.

FIG. 5 is a schematic configuration diagram including a control circuit showing a third embodiment of the present invention.

FIG. 6 is a flowchart showing the operation of the third embodiment.

FIG. 7 is a schematic configuration diagram including a control circuit showing a configuration of a conventional example.

[Explanation of symbols]

 1: Flat plate prism 2: Motor 4: Central processing unit (CPU) 9: Sun position detection device 11: Optical axis sensor 13: Light amount sensor

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shozo Kato 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (5)

[Claims] 1. A sun position detecting device comprising a daylighting device, a sun position detecting device for detecting the altitude and azimuth of the sun at each point in time where the sunlight lighting control device is installed, and a central processing unit such as a microcomputer. The signal of the position of the sun consisting of the altitude and the azimuth of the sun given from the device is given to the central processing unit, and the signal of the position of the sun is arithmetically processed in the central processing unit, and from the central processing unit. A solar lighting control device, characterized in that by issuing a required command, the lighting device is controlled to be in an appropriate position corresponding to the position of the sun. 2. One or a plurality of flat plate prisms arranged in the daylighting unit and rotatable in the horizontal direction, and a sun position for detecting the altitude and direction of the sun at each point in the place where the sunlight lighting control device is installed. It is provided with a central processing unit such as a detection device and a microcomputer, and gives a signal of the position of the sun consisting of the altitude and azimuth of the sun given from the solar position detection device to the central processing unit, and the signal of the position of the sun. By performing arithmetic processing in the central processing unit and issuing a required rotation command from the central processing unit, the flat plate prism is rotationally controlled to have an appropriate rotation angle corresponding to the position of the sun. A solar lighting control device characterized in that 3. One or a plurality of flat plate prisms arranged in the daylighting section and rotatable in the horizontal direction, a solar light irradiation state detection device installed facing the flat plate prism, and the solar light daylighting control device. A sun position detector that detects the altitude and azimuth of the sun at each installation location and a central processing unit such as a microcomputer, and the sun that consists of the altitude and azimuth of the sun at each time given from the sun position detector. The signal of the position and the output signal from the irradiation state detection device are given to the central processing unit, each of these signals is arithmetically processed in the central processing unit, and the corrected rotation command is issued from the central processing unit. Accordingly, the flat plate prism is rotationally controlled so as to have an appropriate rotation angle corresponding to the position of the sun. 4. One or a plurality of flat plate prisms arranged in a daylighting unit and rotatable in a horizontal direction, an optical axis sensor installed facing the flat plate prisms, and a place where the solar lighting control device is installed. The sun position detection device for detecting the altitude and azimuth of the sun at each time point in the And an optical axis signal from the optical axis sensor are given to a central processing unit, each of these signals is arithmetically processed in the central processing unit, and a corrected rotation command is issued from the central processing unit. The solar lighting control device is characterized in that the flat prism is controlled so as to have an appropriate rotation angle corresponding to the position of the sun. 5. One or a plurality of flat plate prisms arranged in a daylighting unit and rotatable in a horizontal direction, a light amount sensor installed facing the flat plate prisms, and a place where the sunlight lighting control device is installed. A sun position detection device for detecting the altitude and azimuth of the sun at each time point, and a central processing unit such as a microcomputer are provided, and a signal of the position of the sun consisting of the altitude and azimuth at each time point of the sun given from the sun position detection device and The light quantity signal from the light quantity sensor is given to the central processing unit, each of these signals is arithmetically processed in the central processing unit, and a corrected rotation command is issued from the central processing unit, whereby the flat plate prism is formed. A solar lighting control device, wherein rotation control is performed so that an appropriate rotation angle is obtained in accordance with the position of the sun.