US20120042868A1 - Solar tracking skylight system for illumination - Google Patents
Solar tracking skylight system for illumination Download PDFInfo
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- US20120042868A1 US20120042868A1 US12/858,036 US85803610A US2012042868A1 US 20120042868 A1 US20120042868 A1 US 20120042868A1 US 85803610 A US85803610 A US 85803610A US 2012042868 A1 US2012042868 A1 US 2012042868A1
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- Prior art keywords
- light
- solar
- solar tracking
- illumination
- light guide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
- F21S11/002—Non-electric lighting devices or systems using daylight characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses
- F21S11/005—Non-electric lighting devices or systems using daylight characterised by the means for collecting or concentrating the sunlight, e.g. parabolic reflectors or Fresnel lenses with tracking means for following the position of the sun
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/03—Sky-lights; Domes; Ventilating sky-lights
- E04D13/033—Sky-lights; Domes; Ventilating sky-lights provided with means for controlling the light-transmission or the heat-reflection, (e.g. shields, reflectors, cleaning devices)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S11/00—Non-electric lighting devices or systems using daylight
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
- F24S30/452—Vertical primary axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/20—Arrangements for controlling solar heat collectors for tracking
Definitions
- the present invention provides a solar tracking skylight system for illumination, which directs natural light indoors for illumination use, thereby achieving the objective of providing lighting without the use of electricity.
- Lighting is closely tied to and inseparable from human life, causing the steady increase in electricity utilization for lighting. Hence, how to cut down on energy consumption is a major issue.
- various countries have successively carried out research on using and guiding sunlight (natural light) indoors for illumination use, and the means used to accomplish this are roughly divided into direct and indirect methods.
- the direct means guides sunlight indoors for illumination use;
- the indirect means converts sunlight into electrical energy for illumination use.
- the latter uses solar battery modules to carry out photoelectric conversion, but has the shortcomings of low efficiency and high cost. Because the former methods directly guide sunlight indoors for application thereof, thus, efficiency is increased.
- sunlight is directly used for illumination, there is no need for electric power, thereby achieving the effectiveness of saving energy and reducing carbon emissions, and is thus receiving much attention.
- a solar tracking sunlight lighting system is proposed.
- a solar tracking mechanism thereof is divided into single axis and two-axis drive, in which, generally speaking, the two-axis mechanism is able to model movement of the solar orbit more effectively than the single axis mechanism.
- controlling driving of the rotating shaft for tracking is divided into passive and active controlled tracking, in which path movement of the sun is calculated in advance in so-called passive tracking, and a tracking device is then made to rotate according to the solar orbit.
- a controller directly outputs signals to a driving end, thus, it is also called open-loop control; whereas active tracking is generally implemented by a light sensor device detecting the position of the sun to cause the tracking device to be orthogonal thereto. Because the output signals causes negative feedback on the input signals, thus, it is also called closed-loop control.
- Many silicon crystal solar batteries function in coordination with single axis active tracking devices to increase electric energy generation, thereby providing approximately 20-30% higher efficiency compared to fixed solar energy modules.
- the majority of two-axis tracking devices are primarily used for tracking, and two-axis passive tracking primarily enables simplification of control flow, thereby avoiding the problems of noise interference in the closed-loop control and weather influencing the sensing precision.
- the present invention is composed of a light guide, a solar tracking controller, a two-axis tracking mechanism, an energy converter and energy storage system, and a weather protective cover, thereby enabling the collection of light and diffusion indoors for use thereof.
- the component members are simple and light, easy to operate, assemble and install.
- the present invention provides protection against rain, consumes little electric power, and has a long serviceable life. Using a large number together achieves the objective of reducing carbon emissions, and also resolves the shortcomings of the prior art technology.
- the present invention uses green technology that protects the environment to provide an excellent product.
- a solar tracking skylight system for illumination of the present invention is assembled to comprise a light guide, a solar tracking controller, a two-axis tracking mechanism, an energy converter and energy storage system, and a weather protective cover. Operation involves sensing a light source, after which the system rotates toward the light source and collects light and guides it indoors for use thereof.
- the protective covering provides waterproofing, and the energy converter and energy storage system is used to generate electricity for use by the system.
- the present invention is an energy saving product that does not need external electrical power.
- the present invention collects natural light for use thereof, thereby reducing the need to turn on electric lights.
- the present invention filters ultraviolet rays, and change in time does not affect maintaining indoor lighting, while equally maintaining the same uniform brightness, thereby providing the effectiveness of indoor sunlight illumination.
- FIG. 1 is an exploded view of the present invention.
- FIG. 2 is a structural view depicting a solar tracking controller of the present invention.
- FIG. 3 is a circuit structural view of the solar tracking controller of the present invention.
- FIG. 4 is an elevational structural view of the present invention.
- FIG. 5 is an implementation diagram 1 depicting solar tracking movement according to the present invention.
- FIG. 6 is an implementation diagram 2 depicting solar tracking movement according to the present invention.
- FIG. 7 shows an embodiment of the present invention directing light.
- FIG. 8 is an application schematic diagram depicting implementation and control of a plurality of systems according to the present invention.
- the solar tracking skylight system for illumination of the present invention guides natural light indoors for illumination thereof, thereby achieving the objective of illumination without the use of electricity.
- the solar tracking skylight system for illumination of the present invention (see FIGS. 1 and 2 ) is assembled to primarily comprise a light guide 1 , a solar tracking controller 2 , a two-axis tracking mechanism 3 , an energy converter and energy storage system 4 , and a weather protective cover 5 , in which the two-axis tracking mechanism 3 serves as a base for movement and operation.
- the two-axis tracking mechanism 3 is provided with a gear ring 30 having gear teeth 31 formed on one side thereof, and the gear teeth 31 couple with a motor 32 . Coupling of the motor 32 with the gear teeth 31 of the gear ring 30 drives the gear ring 30 to cause horizontal rotation of the gear ring 30 .
- At least one supporting rod 33 is fitted to an upper end surface of the gear ring 30 , a cross bar 34 is located on the supporting rods 33 , and a gear rack 35 is formed at one end.
- a motor 36 is located at the area of the gear rack 35 to drive and rotate the cross bar 34 .
- the light guide 1 is located on the two-axis tracking mechanism 3 , and is assembled to comprise at least a light guide plate 10 and a light amplifying plate 11 , in which the light guide plate 10 guides light to the light amplifying plate 11 , and, using the principle of optics, guides the light indoors, diffusing the light to form uniform light for illumination use thereof; that is, the light guide plate 10 is located outdoors, while the light amplifying plate 11 is located indoors, the light guide plate 10 totally reflecting and guiding the light indoors, whereupon the light amplifying plate 11 refracts and emits the light using multi-angle means.
- the present invention applies high light reflective plate material to fabricate the light guide plate 10 , such as aluminum, polished stainless steel metal plate (such as ultra-thin stainless steel mirror plate, or thin nickel plated plastic plate), glass mirror, and the like, and the light amplifying plate 11 comprises an optical filming plated with a layer of diffusion barrier to enable downward uniform diffusion of the light, and achieve the objective of uniform light amplification.
- the light guide plate 10 is fitted to the cross bar 34 of the two-axis tracking mechanism 3 , and the light amplifying plate 11 is located in the gear ring 30 of the two-axis tracking mechanism 3 .
- a light filter 12 can be additionally fitted in the light path to cut off the harmful light.
- the light filter 12 can be formed using a coating film or light-filter glass able to cut off the harmful light, and disposed position of the light filter 12 can be the inner surface of the weather protective cover 5 or the front, rear surface of the light guide plate 10 .
- the energy converter and energy storage system 4 is an apparatus assembled from a solar energy panel 40 and an energy storage battery 41 that converts light energy into electrical energy, and is fitted to one side of the two-axis tracking mechanism 3 .
- the energy converter and energy storage system 4 is used to supply the solar tracking controller 2 and the two-axis tracking mechanism 3 with system electricity, thereby achieving the objective of providing a system that does not need an external power supply.
- the solar energy panel 40 receives light producing electric displacement and electrification, then conducting wires fitted to the main body are used to carry the electrical energy to a circuit board 42 mounted on the bottom end of the solar energy panel 40 for integrated input to the battery 41 for storage and use thereof.
- the solar energy panel 40 can be located on the cross bar 34 of the two-axis tracking mechanism 3 to enable movement along therewith, thereby obtaining more exposure to the sunlight source to improve electric generation effectiveness.
- the solar tracking controller 2 is a solar tracking system, which is located on one side of the two-axis tracking mechanism 3 , and can be located at the position of the gear ring 30 , the light amplifying plate 11 or the light guide plate 10 according to needs.
- the solar tracking controller 2 comprises a plurality of light sensor photoconductive cells (photoresistors) 20 for detecting a light source and a circuit board 21 fitted at the lower end thereof (as depicted in FIGS. 2 , 3 ).
- the circuit board 21 comprises at least a Schmidt circuit 22 , an OPA (Optoelectronic Pulse Amplifier) amplifying circuit 23 , a Wheatstone bridge circuit 24 and related protective electronic components.
- OPA Optoelectronic Pulse Amplifier
- the photoconductive cells (photoresistors) 20 are also known as light propagation devices or light sensor devices, which are non-polar differentiation electronic components having photosensitive characteristics. Because of a photo-conductivity effect, when illuminated with light, the resistance value of the photoconductive cells (photoresistors) 20 changes along with the strength of light intensity, that is, the stronger the light intensity, the smaller the resistance value.
- the Schmidt circuit 22 is used to obtain ⁇ (alpha) and ⁇ (gamma) signals, primarily using signals obtained from the photoconductive cells (photoresistors) 20 to input into a circuit block in the Schmidt circuit 22 to compare and obtain ⁇ (alpha) and ⁇ (gamma) signals.
- the OPA amplifying circuit 23 appropriately amplifies the signals from the Schmidt circuit 22 at a front end to facilitate correct identification, reading and output of the signals.
- the Wheatstone bridge circuit 24 is used to actuate and operate the motors 32 , 36 of the two-axis tracking mechanism 3 .
- the photoconductive cells (photoresistors) 20 are located in the east, west, south, and north positions of the solar tracking controller 2 system, and operation of the entire solar tracking controller 2 involves the photoconductive cells (photoresistors) 20 sensing the intensity strength of the light source from four directions and inputting the signals into the Schmidt circuit 22 for comparative analyzes.
- the weather protective cover 5 located on the outer edge of the two-axis tracking mechanism 3 covers the entire mechanism, thereby protecting against wind, and preventing water from entering the system and damaging operation thereof.
- the weather protective cover 5 has the characteristic of being pervious to light, thereby facilitating the penetration of light for the system to collect and make use thereof.
- a solar tracking skylight system for illumination 6 (as depicted in FIGS. 4 , 5 , and 6 ) is formed after the aforementioned components have been assembled and installed at a light collecting position. After actuating, the system returns to an initial point, whereupon the solar tracking controller 2 tracks the direction of sunlight during operation, and transmits electric signals to cause the two-axis tracking mechanism 3 to rotate toward the direction of sunlight, thereby enabling the light guide 1 to collect light, whereupon a uniform light source diffuses from the light amplifying plate 11 and is guided indoors 7 to enable illumination thereof. Moreover, change in time does not affect maintaining indoor daylight illumination, while equally maintaining the same uniform brightness (as depicted in FIG. 7 ).
- Electric power for operating the system is self-sufficient, coming from the solar energy panel 40 of the energy converter and energy storage system 4 generating electricity that is stored in the battery 41 , thereby completely eliminating the need for external power.
- external electric power can be used when large quantities of electricity are required to reduce and achieve the objective of zero carbon emissions to provide a green environment.
- the solar tracking controller 2 is only installed in the master controller (as depicted in FIG. 8 ), and other indirect solar tracking skylight systems for illumination 8 are not fitted with the solar tracking controller 2 .
- the master controller outputs electric signals to control operation of the motors 32 , 36 of each of the indirect solar tracking skylight systems for illumination 8 , and thereby similarly enables solar tracking illumination, while saving on cost of components.
- a year-round solar path database device 25 is installed in the circuit board 21 , such as a chip with solar path data burnt into the chip, or a device provided with such functionality, in which a complete record of year-round solar path data for a certain area (such as Taiwan) is burnt into the device. Accordingly, when the solar tracking controller 2 is unable to operate, then the device is actuated to cause the two-axis tracking mechanism 3 to rotate toward the direction of the sun, and automatically fix position at the angle of the sun at that time to collect light, as well as causing the two-axis tracking mechanism 3 to move according to the recorded solar path, thereby enabling the system to continue operation.
Abstract
Description
- (a) Field of the Invention
- The present invention provides a solar tracking skylight system for illumination, which directs natural light indoors for illumination use, thereby achieving the objective of providing lighting without the use of electricity.
- (b) Description of the Prior Art
- Lighting is closely tied to and inseparable from human life, causing the steady increase in electricity utilization for lighting. Hence, how to cut down on energy consumption is a major issue. Recently, various countries have successively carried out research on using and guiding sunlight (natural light) indoors for illumination use, and the means used to accomplish this are roughly divided into direct and indirect methods. The direct means guides sunlight indoors for illumination use; the indirect means converts sunlight into electrical energy for illumination use. The latter uses solar battery modules to carry out photoelectric conversion, but has the shortcomings of low efficiency and high cost. Because the former methods directly guide sunlight indoors for application thereof, thus, efficiency is increased. Moreover, because sunlight is directly used for illumination, there is no need for electric power, thereby achieving the effectiveness of saving energy and reducing carbon emissions, and is thus receiving much attention. However, because it is a fixed natural light illumination system, thus, its effectiveness is limited. In order to improve light collecting effectiveness, a solar tracking sunlight lighting system is proposed. Regarding the solar tracking system, a solar tracking mechanism thereof is divided into single axis and two-axis drive, in which, generally speaking, the two-axis mechanism is able to model movement of the solar orbit more effectively than the single axis mechanism. Moreover, controlling driving of the rotating shaft for tracking is divided into passive and active controlled tracking, in which path movement of the sun is calculated in advance in so-called passive tracking, and a tracking device is then made to rotate according to the solar orbit. Because a controller directly outputs signals to a driving end, thus, it is also called open-loop control; whereas active tracking is generally implemented by a light sensor device detecting the position of the sun to cause the tracking device to be orthogonal thereto. Because the output signals causes negative feedback on the input signals, thus, it is also called closed-loop control. Many silicon crystal solar batteries function in coordination with single axis active tracking devices to increase electric energy generation, thereby providing approximately 20-30% higher efficiency compared to fixed solar energy modules. The majority of two-axis tracking devices are primarily used for tracking, and two-axis passive tracking primarily enables simplification of control flow, thereby avoiding the problems of noise interference in the closed-loop control and weather influencing the sensing precision. Because sunlight is directly guided indoors for illumination, thus, the use efficiency of solar energy is high, and in recent years research teams have already appeared, researching the application concept of directly guiding sunlight indoors, primarily taking into consideration technical feasibility, economic benefit, energy saving, whether components are easy to replace, consumer acceptance, and so on, with some products already integrated into buildings. However, the size of the light collecting portion of these systems is relatively large, or consists of many and complicated components, or the light collecting rate is low. Accordingly, it can be inferred that market acceptance is limited. Hence, the challenging goal for future development of new style sunlight collecting devices can be roughly divided into the following items: 1. structure: light, aspect ratio of the components must be at least greater than 10; 2. cost: inexpensive, easy to fabricate, and simple components; 3. benefit: low light loss, high uniformity, with light collecting rate greater than 50%. In consequence of the prior art technology having the aforementioned shortcomings, the present invention is composed of a light guide, a solar tracking controller, a two-axis tracking mechanism, an energy converter and energy storage system, and a weather protective cover, thereby enabling the collection of light and diffusion indoors for use thereof. In which the component members are simple and light, easy to operate, assemble and install. Moreover, the present invention provides protection against rain, consumes little electric power, and has a long serviceable life. Using a large number together achieves the objective of reducing carbon emissions, and also resolves the shortcomings of the prior art technology. The present invention uses green technology that protects the environment to provide an excellent product.
- A solar tracking skylight system for illumination of the present invention is assembled to comprise a light guide, a solar tracking controller, a two-axis tracking mechanism, an energy converter and energy storage system, and a weather protective cover. Operation involves sensing a light source, after which the system rotates toward the light source and collects light and guides it indoors for use thereof. The protective covering provides waterproofing, and the energy converter and energy storage system is used to generate electricity for use by the system. The present invention is an energy saving product that does not need external electrical power.
- The present invention collects natural light for use thereof, thereby reducing the need to turn on electric lights. In addition, the present invention filters ultraviolet rays, and change in time does not affect maintaining indoor lighting, while equally maintaining the same uniform brightness, thereby providing the effectiveness of indoor sunlight illumination.
- To enable a further understanding of said objectives and the technological methods of the invention herein, a brief description of the drawings is provided below followed by a detailed description of the preferred embodiments.
-
FIG. 1 is an exploded view of the present invention. -
FIG. 2 is a structural view depicting a solar tracking controller of the present invention. -
FIG. 3 is a circuit structural view of the solar tracking controller of the present invention. -
FIG. 4 is an elevational structural view of the present invention. -
FIG. 5 is an implementation diagram 1 depicting solar tracking movement according to the present invention. -
FIG. 6 is an implementation diagram 2 depicting solar tracking movement according to the present invention. -
FIG. 7 shows an embodiment of the present invention directing light. -
FIG. 8 is an application schematic diagram depicting implementation and control of a plurality of systems according to the present invention. - Referring to all the drawings, the solar tracking skylight system for illumination of the present invention guides natural light indoors for illumination thereof, thereby achieving the objective of illumination without the use of electricity. When implementing the present invention:
- The solar tracking skylight system for illumination of the present invention (see
FIGS. 1 and 2 ) is assembled to primarily comprise alight guide 1, asolar tracking controller 2, a two-axis tracking mechanism 3, an energy converter andenergy storage system 4, and a weatherprotective cover 5, in which the two-axis tracking mechanism 3 serves as a base for movement and operation. The two-axis tracking mechanism 3 is provided with agear ring 30 havinggear teeth 31 formed on one side thereof, and thegear teeth 31 couple with amotor 32. Coupling of themotor 32 with thegear teeth 31 of thegear ring 30 drives thegear ring 30 to cause horizontal rotation of thegear ring 30. At least one supportingrod 33 is fitted to an upper end surface of thegear ring 30, across bar 34 is located on the supportingrods 33, and agear rack 35 is formed at one end. Amotor 36 is located at the area of thegear rack 35 to drive and rotate thecross bar 34. Because the mechanism of the present invention is a two-dimensional configuration, thus, it provides a minimum component composite unit design, presenting characteristics of simplicity, lightness, and easy operation. Thelight guide 1 is located on the two-axis tracking mechanism 3, and is assembled to comprise at least alight guide plate 10 and a light amplifyingplate 11, in which thelight guide plate 10 guides light to thelight amplifying plate 11, and, using the principle of optics, guides the light indoors, diffusing the light to form uniform light for illumination use thereof; that is, thelight guide plate 10 is located outdoors, while thelight amplifying plate 11 is located indoors, thelight guide plate 10 totally reflecting and guiding the light indoors, whereupon thelight amplifying plate 11 refracts and emits the light using multi-angle means. In order to achieve maximum efficiency in reflecting the sunlight indoors, light reflectivity of the material surface of thelight guide plate 10 must be large, and thelight guide plate 10 must be of light weight. The present invention applies high light reflective plate material to fabricate thelight guide plate 10, such as aluminum, polished stainless steel metal plate (such as ultra-thin stainless steel mirror plate, or thin nickel plated plastic plate), glass mirror, and the like, and thelight amplifying plate 11 comprises an optical filming plated with a layer of diffusion barrier to enable downward uniform diffusion of the light, and achieve the objective of uniform light amplification. In which thelight guide plate 10 is fitted to thecross bar 34 of the two-axis tracking mechanism 3, and thelight amplifying plate 11 is located in thegear ring 30 of the two-axis tracking mechanism 3. When the two-axis tracking mechanism 3 is moving followed by the guided light, in order to take into consideration the sunlight being too intense and injuring persons indoors, alight filter 12 can be additionally fitted in the light path to cut off the harmful light. In which thelight filter 12 can be formed using a coating film or light-filter glass able to cut off the harmful light, and disposed position of thelight filter 12 can be the inner surface of the weatherprotective cover 5 or the front, rear surface of thelight guide plate 10. The energy converter andenergy storage system 4 is an apparatus assembled from asolar energy panel 40 and anenergy storage battery 41 that converts light energy into electrical energy, and is fitted to one side of the two-axis tracking mechanism 3. The energy converter andenergy storage system 4 is used to supply thesolar tracking controller 2 and the two-axis tracking mechanism 3 with system electricity, thereby achieving the objective of providing a system that does not need an external power supply. In which, when thesolar energy panel 40 receives light producing electric displacement and electrification, then conducting wires fitted to the main body are used to carry the electrical energy to acircuit board 42 mounted on the bottom end of thesolar energy panel 40 for integrated input to thebattery 41 for storage and use thereof. In which thesolar energy panel 40 can be located on thecross bar 34 of the two-axis tracking mechanism 3 to enable movement along therewith, thereby obtaining more exposure to the sunlight source to improve electric generation effectiveness. Thesolar tracking controller 2 is a solar tracking system, which is located on one side of the two-axis tracking mechanism 3, and can be located at the position of thegear ring 30, thelight amplifying plate 11 or thelight guide plate 10 according to needs. Thesolar tracking controller 2 comprises a plurality of light sensor photoconductive cells (photoresistors) 20 for detecting a light source and acircuit board 21 fitted at the lower end thereof (as depicted inFIGS. 2 , 3). Thecircuit board 21 comprises at least aSchmidt circuit 22, an OPA (Optoelectronic Pulse Amplifier) amplifyingcircuit 23, aWheatstone bridge circuit 24 and related protective electronic components. In which, the photoconductive cells (photoresistors) 20 are also known as light propagation devices or light sensor devices, which are non-polar differentiation electronic components having photosensitive characteristics. Because of a photo-conductivity effect, when illuminated with light, the resistance value of the photoconductive cells (photoresistors) 20 changes along with the strength of light intensity, that is, the stronger the light intensity, the smaller the resistance value. TheSchmidt circuit 22 is used to obtain α (alpha) and γ (gamma) signals, primarily using signals obtained from the photoconductive cells (photoresistors) 20 to input into a circuit block in theSchmidt circuit 22 to compare and obtain α (alpha) and γ (gamma) signals. TheOPA amplifying circuit 23 appropriately amplifies the signals from theSchmidt circuit 22 at a front end to facilitate correct identification, reading and output of the signals. TheWheatstone bridge circuit 24 is used to actuate and operate themotors axis tracking mechanism 3. In which the photoconductive cells (photoresistors) 20 are located in the east, west, south, and north positions of thesolar tracking controller 2 system, and operation of the entiresolar tracking controller 2 involves the photoconductive cells (photoresistors) 20 sensing the intensity strength of the light source from four directions and inputting the signals into theSchmidt circuit 22 for comparative analyzes. After which, the signals enter theOPA amplifying circuit 23 for amplification, identification, and reading to output signals to theWheatstone bridge circuit 24 to actuate or not actuate operation of themotors axis tracking mechanism 3. The weatherprotective cover 5 located on the outer edge of the two-axis tracking mechanism 3 covers the entire mechanism, thereby protecting against wind, and preventing water from entering the system and damaging operation thereof. The weatherprotective cover 5 has the characteristic of being pervious to light, thereby facilitating the penetration of light for the system to collect and make use thereof. - A solar tracking skylight system for illumination 6 (as depicted in
FIGS. 4 , 5, and 6) is formed after the aforementioned components have been assembled and installed at a light collecting position. After actuating, the system returns to an initial point, whereupon thesolar tracking controller 2 tracks the direction of sunlight during operation, and transmits electric signals to cause the two-axis tracking mechanism 3 to rotate toward the direction of sunlight, thereby enabling thelight guide 1 to collect light, whereupon a uniform light source diffuses from thelight amplifying plate 11 and is guided indoors 7 to enable illumination thereof. Moreover, change in time does not affect maintaining indoor daylight illumination, while equally maintaining the same uniform brightness (as depicted inFIG. 7 ). Electric power for operating the system is self-sufficient, coming from thesolar energy panel 40 of the energy converter andenergy storage system 4 generating electricity that is stored in thebattery 41, thereby completely eliminating the need for external power. However, external electric power can be used when large quantities of electricity are required to reduce and achieve the objective of zero carbon emissions to provide a green environment. - Furthermore, when a large number of the solar tracking skylight system for
illumination 6 are used, then thesolar tracking controller 2 is only installed in the master controller (as depicted inFIG. 8 ), and other indirect solar tracking skylight systems forillumination 8 are not fitted with thesolar tracking controller 2. The master controller outputs electric signals to control operation of themotors illumination 8, and thereby similarly enables solar tracking illumination, while saving on cost of components. - In addition, referring to
FIG. 3 at the same time, in order to improve efficiency, a year-round solarpath database device 25 is installed in thecircuit board 21, such as a chip with solar path data burnt into the chip, or a device provided with such functionality, in which a complete record of year-round solar path data for a certain area (such as Taiwan) is burnt into the device. Accordingly, when thesolar tracking controller 2 is unable to operate, then the device is actuated to cause the two-axis tracking mechanism 3 to rotate toward the direction of the sun, and automatically fix position at the angle of the sun at that time to collect light, as well as causing the two-axis tracking mechanism 3 to move according to the recorded solar path, thereby enabling the system to continue operation. - It is of course to be understood that the embodiments described herein are merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
Claims (4)
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US20120113623A1 (en) * | 2010-11-05 | 2012-05-10 | James D. Weber | Solar Powered Lighting Assembly |
US8736961B2 (en) * | 2012-05-04 | 2014-05-27 | Abl Ip Holding Llc | Color correction of daylight |
DE102013019793A1 (en) | 2013-11-27 | 2015-05-28 | Bavarianoptics Gmbh | Parallactic solar tracking for concentrating sunlight collection systems with fiber optics |
TWI510733B (en) * | 2014-06-09 | 2015-12-01 | Inst Nuclear Energy Res Atomic Energy Council | Indoor illuminating device using directed sunlight |
US20180149324A1 (en) * | 2015-02-17 | 2018-05-31 | Xiaodong Zhang | Daylight Transmission System for Building |
US10309600B2 (en) * | 2015-02-17 | 2019-06-04 | Xiaodong Zhang | Daylight transmission system for building |
US20220163385A1 (en) * | 2015-10-06 | 2022-05-26 | View, Inc. | Multi-sensor |
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