Light detection type full-automatic sun tracking system

Abstract

The invention discloses a light detection type full-automatic sun-tracking system, and relates to the technical field of sun-tracking systems, and the system comprises a light-transmitting protection hemisphere cover, a longitude sun-tracking assembly, a latitude sun-tracking assembly, a longitude sun-tracking subsystem, a longitude reset subsystem and a latitude sun-tracking subsystem, and the bottom edge of the light-transmitting protection hemisphere cover is fixedly provided with a scale installation pedestal through a bolt. A longitude sun-tracking assembly and a latitude sun-tracking assembly are arranged in the light-transmitting protection hemispherical cover, and the output end of a latitude rotating motor is meshed with a latitude rotating shaft. The light detection type full-automatic sun tracking system follows the geophysics and solar system ground-sun corresponding relation operation principle, utilizes the light receiving reaction of the photosensitive sensor, and is matched with the limit switch to form an access ON and an open circuit OFF of a required circuit, and independent operation can be realized without any other auxiliary systems such as a timing correction system and a global positioning system; during installation, position longitude and latitude do not need to be set, the device is simple and convenient, can be used after being installed, and can be installed and used in any illuminated area.

Description

Technical Field

[0001] The present invention relates to the technical field of sun tracking systems, and in particular to a light-finding type fully automatic sun tracking system. Background Art

[0002] Photovoltaic power generation is the process of generating electricity by receiving sunlight, among which direct sunlight is the most efficient. However, due to the rotation and revolution of the earth, photovoltaic panels are not fixed at one angle to receive sunlight. Photovoltaic panels need to maintain the angle of direct sunlight in real time, so the angle of photovoltaic panels is adjusted in real time through a sun tracking system.

[0003] For example, the patent with application number: CN202210971169.6 discloses a solar photovoltaic panel sun-tracking device, which relates to the field of new energy technology. The solar photovoltaic panel sun-tracking device includes a photovoltaic panel, a bracket and a water pipe; the water pipe is connected to the photovoltaic panel; the bracket includes a rotating part, the rotating part is connected to the photovoltaic panel, and the rotating part is located between the side of the photovoltaic panel away from the water pipe and the water pipe; wherein the amount of water in the water pipe can be adjusted so that the photovoltaic panel rotates around the axis of the rotating part, thereby balancing the gravity change of the water pipe. The technical solution of the present invention can solve the problem of complex structure of the existing solar photovoltaic panel sun-tracking device;

[0004] Similar sun-tracking devices of the above-mentioned applications also have the following defects:

[0005] The existing solar tracking system for adjusting the angle of photovoltaic panels requires calibration by a timing system or assistance from a global positioning system to ensure that the angle of the photovoltaic panels is accurately adjusted to achieve direct optical fiber illumination. However, this also leads to problems of complex systems and high costs.

[0006] Therefore, in view of this, the existing structure and defects are studied and improved, and a light-seeking fully automatic sun tracking system is proposed. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a fully automatic sun tracking system using a search light, which solves the problems raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fully automatic sun-tracking system with a light-seeking method, including a light-transmitting protective hemispherical cover, a longitude sun-tracking assembly, a latitude sun-tracking assembly, a longitude sun-tracking system, a longitude reset subsystem and a latitude sun-tracking system, a scale mounting base is fixed to the bottom edge of the light-transmitting protective hemispherical cover by bolts, a longitude sun-tracking assembly and a latitude sun-tracking assembly are arranged inside the light-transmitting protective hemispherical cover, the longitude sun-tracking assembly includes a longitude rotating motor, a longitude rotating shaft and a longitude light-seeking tube, the output end of the longitude rotating motor is meshed with the longitude rotating shaft, and the surface of the longitude rotating shaft is provided with a longitude light-seeking tube, The latitude sun-tracking assembly includes a latitude rotating motor, a latitude rotating shaft, a north latitude light-searching tube, a mid-latitude light-searching tube and a south latitude light-searching tube. The output end of the latitude rotating motor is meshed with the latitude rotating shaft, and the surface of the latitude rotating shaft is sequentially provided with the north latitude light-searching tube, the mid-latitude light-searching tube and the south latitude light-searching tube. An independent photoresistor is provided at the upper right corner of the inner part of the light-transmitting protective hemispherical cover. The longitude light-searching tube, the north latitude light-searching tube, the mid-latitude light-searching tube and the south latitude light-searching tube are connected to the photovoltaic panel motor rotating shaft through a synchronous output electrical circuit, and the photovoltaic panel motor rotating shaft is connected to the photovoltaic panel body, and there are two photovoltaic panel motor rotating shafts in total.

[0009] Furthermore, both ends of the longitude rotation axis are rotatably connected to the light-transmitting protective hemispherical cover, and both ends of the longitude rotation axis are connected to synchronous cleaning scraping rings, and the synchronous cleaning scraping rings are attached to the surface of the light-transmitting protective hemispherical cover.

[0010] Furthermore, the longitude tracking sun system is used to drive the photovoltaic panel body to synchronously change the optimal longitude sun-facing angle by using the system to track the sun;

[0011] The receiving longitude light-detecting tube receives light or not, forming the ON or OFF state of the sun-tracking circuit, which determines the rotation or stop of the longitude rotation motor, driving the system to always correspond to the sunlight direction with the best longitude angle.

[0012] Furthermore, the longitude reset subsystem is used to turn off the sun tracking circuit OFF when the effective light source disappears, and at the same time start the reset circuit path ON, perform reverse reset, reverse reset to the original state, activate the sunrise limit switch, and turn off the reset circuit path OFF.

[0013] Furthermore, the latitude tracking sun system is used to drive the photovoltaic panel body to synchronously change the optimal latitude sun-facing angle by tracking the sun with the system;

[0014] The north latitude angle light search tube, mid-latitude angle light search tube and south latitude angle light search tube are informed of whether they receive light, forming a path or a break, so as to determine the forward or reverse rotation of the latitude rotation motor, driving the system to always correspond to the direction of sunlight at the best latitude angle, and stopping operation during the period of no light.

[0015] Furthermore, the longitude tracking operation process of the said automatic sun tracking system is as follows:

[0016] A1: Every time the earth rotates once, when the light source appears, the independent photoresistor is illuminated, the sun-tracking system is activated, the reset system is turned off, the longitude light-seeking tube is illuminated, the sun-tracking circuit is disconnected OFF, the sunrise limit switch is compressed, the circuit is OFF, and the system is stationary at this time;

[0017] A2: The sunshine angle changes with time, and the longitude light-seeking tube is turned off, and the sun-tracking circuit is turned on. The longitude rotation motor drives the longitude light-seeking tube to rotate in accordance with the sun, and at the same time, the sunrise limit switch is released, the reset circuit is restored, and the synchronous output electrical circuit is started. The photovoltaic panel motor shaft drives the photovoltaic panel body to rotate synchronously in accordance with the sun, until the longitude light-seeking tube receives light, the sun-tracking circuit is turned off, the longitude sun-tracking tube is aligned, and the system is stationary.

[0018] A3: Following the principle of the earth's rotation, when the effective illumination ends, the independent photoresistor turns off the light, the sun-tracking electrical circuit turns off, the reset circuit path turns on, and the circuit path is transferred to the service reset circuit system to reverse and reset the longitude light-seeking tube and activate the standby state.

[0019] Furthermore, in step A3, when the longitude light-seeking tube is reversed and reset to its original position, the sunrise limit switch is pressed, closing the reset circuit system, cooperating with the rotation of the earth to complete a sun-chasing cycle, waiting for effective sunlight to appear again, and then performing another sun-chasing cycle. When the light source appears again and the first sun-chasing action is entered, the sunrise limit switch is released and reset, and the circuit is restored.

[0020] Furthermore, the latitude sun tracking operation process of the light-seeking fully automatic sun tracking system is as follows:

[0021] B1: When a light source appears, the system's independent photoresistor receives light, and the latitude tracking electrical circuit is turned on. When the light source is south, the mid-latitude angle light-seeking tube is turned on by closing the light, and the south latitude angle light-seeking tube receives light by turning the latitude rotary motor forward, so that the mid-latitude angle light-seeking tube rotates to receive light. At this time, the latitude tracking circuit is turned off, and the system is stationary.

[0022] B2: When the light source is north, the mid-latitude angle light-seeking tube is closed and ON, the north latitude angle light-seeking tube is reversed when receiving light, and the mid-latitude angle light-seeking tube rotates to receive light. At this time, the latitude sun tracking circuit is OFF and the system is stationary.

[0023] B3: When the light source disappears, the system's independent photoresistor turns off the light, and the latitude sun tracking electrical circuit is OFF. This movement is repeated, and the system always maintains the best sun-facing angle within the effective lighting time range.

[0024] Furthermore, the longitude sun tracking operation and the latitude sun tracking operation of the search-light type fully automatic sun tracking system are performed simultaneously.

[0025] The present invention provides a fully automatic sun tracking system with a light-seeking method, which has the following beneficial effects:

[0026] 1. This light-seeking fully automatic sun tracking system follows the operating principle of geophysics and the earth-sun correspondence of the solar system. It uses the light-sensitive sensor to react to light and cooperates with the limit switch to form the required circuit ON and OFF. It can operate independently without any other auxiliary systems such as timing correction system, global positioning system, etc. There is no need to set the longitude and latitude of the position during installation. It is simple and convenient, ready to use, and can be installed and used in any illuminated area.

[0027] 2. In the fully automatic sun-tracking system with light-seeking, when the longitude rotating motor drives the longitude rotating axis to rotate, the synchronous cleaning scraping ring will slide along the surface of the light-transmitting protective hemispherical cover, thereby utilizing the synchronous cleaning scraping ring to clean the surface of the light-transmitting protective hemispherical cover to ensure the light transmittance of the light-transmitting protective hemispherical cover so that the light-seeking tube can receive light. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the light receiving state of a light-seeking tube of a light-seeking fully automatic sun-tracking system of the present invention;

[0029] Figure 2 It is a schematic diagram of the structure of the longitude sun tracking component of a light-seeking type fully automatic sun tracking system of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the latitude sun tracking component of a light-seeking type fully automatic sun tracking system of the present invention;

[0031] Figure 4 It is a schematic diagram of the longitude sun tracking process of a light-seeking type fully automatic sun tracking system of the present invention;

[0032] Figure 5 It is a schematic diagram of the latitude sun tracking process of a light-seeking type fully automatic sun tracking system of the present invention;

[0033] Figure 6 The figure is a schematic diagram of the appearance structure of a light-seeking fully automatic sun-tracking system of the present invention.

[0034] In the figure: 1. Transparent protective hemispherical cover; 2. Longitude sun-tracking assembly; 201. Longitude rotation motor; 202. Longitude rotation axis; 203. Longitude light-seeking tube; 3. Latitude sun-tracking assembly; 301. Latitude rotation motor; 302. Latitude rotation axis; 303. North latitude light-seeking tube; 304. Mid-latitude light-seeking tube; 305. South latitude light-seeking tube; 4. Independent photoresistor; 5. Scale mounting base; 6. Photovoltaic panel motor rotation axis; 7. Photovoltaic panel body; 8. Synchronous cleaning scraper ring. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] like Figure 1-Figure 3 As shown, the present invention provides a technical solution: a fully automatic sun-tracking system with a light-seeking method, comprising a light-transmitting protective hemispherical cover 1, a longitude sun-tracking component 2, a latitude sun-tracking component 3, a longitude sun-tracking system, a longitude reset subsystem and a latitude sun-tracking system. A scale mounting base 5 is fixed to the bottom edge of the light-transmitting protective hemispherical cover 1 by bolts. The longitude sun-tracking component 2 and the latitude sun-tracking component 3 are arranged inside the light-transmitting protective hemispherical cover 1. The longitude sun-tracking component 2 comprises a longitude rotating motor 201, a longitude rotating shaft 202 and a longitude light-seeking tube 203. The output end of the longitude rotating motor 201 is meshed with the longitude rotating shaft 202, and the surface of the longitude rotating shaft 202 is provided with the longitude light-seeking tube 203. The latitude sun-tracking component 3 comprises a latitude rotating motor 30 1. Latitude rotation axis 302, north latitude light search tube 303, mid-latitude light search tube 304 and south latitude light search tube 305. The output end of latitude rotation motor 301 is meshed with latitude rotation axis 302, and the surface of latitude rotation axis 302 is sequentially provided with north latitude light search tube 303, mid-latitude light search tube 304 and south latitude light search tube 305. An independent photoresistor 4 is provided at the upper right corner of the inner part of light-transmitting protective hemispherical cover 1. Longitude light search tube 203, north latitude light search tube 303, mid-latitude light search tube 304 and south latitude light search tube 305 are connected with photovoltaic panel motor rotation axis 6 through synchronous output electrical circuit, and photovoltaic panel motor rotation axis 6 is connected with photovoltaic panel body 7, and there are two photovoltaic panel motor rotation axes 6 in total.

[0037] The specific operation is as follows: the longitude light-seeking tube 203, the north latitude light-seeking tube 303, the mid-latitude light-seeking tube 304 and the south latitude light-seeking tube 305 are all light-seeking tubes. The light-seeking tubes are straight protective tubes, and the inner wall is coated with dark light-absorbing material to avoid unnecessary light pollution interference and increase the light receiving accuracy. A photoresistor switch is embedded at the bottom of the protective tube, and a light-transmitting mirror is arranged on the top of the protective tube to form a sealed and clean state inside the tube. The light-sensitive switch lead-out line can be set to realize the light receiving and light-blocking states as open or disconnected through the design and arrangement of the electrical circuit. The diameter of the light-seeking tube, the depth of the tube body, the reflectivity of the tube wall, the arrangement density, the installation arrangement angle difference and other factors can determine the light receiving angle limit of the photosensitive switch, and then determine the accuracy specifications of this system. Figure 1 As shown, the upper and lower round tubes are both light-seeking tubes, and the upper and lower black arrows are both lighting directions, wherein light enters the light-seeking tube in a straight manner to achieve light reception, while light enters the light-seeking tube in a refracted manner and gradually weakens along the dotted line until it disappears, thus forming closed light;

[0038] The light-transmitting protective hemispherical cover 1 is horizontally mounted on the surface of the scale mounting base 5 by means of bolts, and the north scale N is aligned with the true north for installation;

[0039] The independent photoresistor 4 is located inside the light-transmitting protective hemispherical cover 1 and the installation position does not hinder the operation of the system. The independent photoresistor 4 plays a power-off function in the dark night without light, and the system sun tracking circuit stops working, and the longitude reset operation is started at the same time. The system electrical circuit design is as follows:

[0040] The independent photoresistor 4 is connected in series with the precision and latitude sun tracking circuit loop, and does not include the longitude reset electrical circuit. When the independent photoresistor 4 is exposed to light, the sun tracking circuit is turned on, and the reset circuit path is turned off. When the light is blocked, the sun tracking circuit is turned off, and the reset circuit path is turned on, for reverse reset.

[0041] The longitude tracking system is used to drive the photovoltaic panel body 7 to synchronously change the best longitude sun-facing angle by tracking the sun with the system; the longitude light-detecting tube 203 receives light to form the ON or OFF state of the sun-tracking circuit, so as to determine the rotation or stop of the longitude rotation motor 201, and drive the system to always correspond to the sunshine direction with the best longitude angle;

[0042] The longitude reset subsystem is used to turn off the sun tracking circuit OFF when the effective light source disappears, and at the same time start the reset circuit path ON, perform reverse reset, reverse reset to the original state, activate the sunrise limit switch, and turn off the reset circuit path OFF;

[0043] The latitude tracking system is used to drive the photovoltaic panel body 7 to synchronously change the optimal latitude sun-facing angle by tracking the sun with the system; it receives the light from the north latitude angle light-seeking tube 303, the mid-latitude angle light-seeking tube 304 and the south latitude angle light-seeking tube 305 to form a circuit or disconnection state, so as to determine the forward and reverse rotation of the latitude rotation motor 301, drive the system to always correspond to the sunshine direction with the optimal latitude angle, and stop running during the period of no light;

[0044] Moreover, the longitude light search tube 203, the north latitude light search tube 303, the mid-latitude light search tube 304 and the south latitude light search tube 305 are connected to the photovoltaic panel motor rotating shaft 6 through a synchronous output electrical circuit. When the longitude light search tube 203, the north latitude light search tube 303, the mid-latitude light search tube 304 and the south latitude light search tube 305 rotate to receive light, they send instructions to the photovoltaic panel motor rotating shaft 6 through the synchronous output electrical circuit, so that the two photovoltaic panel motor rotating shafts 6 drive the photovoltaic panel body 7 to adjust the angle, so that the photovoltaic panel body 7 always maintains the best sun-facing angle to receive light.

[0045] like Figure 2 As shown, both ends of the longitude rotation axis 202 are rotatably connected to the light-transmitting protective hemispherical cover 1, and both ends of the longitude rotation axis 202 are connected to synchronous cleaning scraping rings 8, and the synchronous cleaning scraping rings 8 are attached to the surface of the light-transmitting protective hemispherical cover 1;

[0046] When the longitude rotating motor 201 drives the longitude rotating shaft 202 to rotate, the synchronous cleaning scraping ring 8 will slide against the surface of the light-transmitting protective hemispherical cover 1, thereby using the synchronous cleaning scraping ring 8 to clean the surface of the light-transmitting protective hemispherical cover 1 to ensure the light transmittance of the light-transmitting protective hemispherical cover 1 so that the light-seeking tube can receive light.

[0047] like Figure 1-Figure 5 As shown in the figure, the longitude tracking operation process of the fully automatic sun tracking system is as follows:

[0048] like Figure 2 As shown, the short black arrow on the left is the direction of illumination, the dotted arc arrow is the sun's eastward trajectory, and the double-directional arrow on the right is the synchronous output electrical circuit;

[0049] When the light source exists (daytime), the independent photoresistor 4 receives light, and the longitude tracking circuit of the system is turned on. When the longitude tracking light tube receives light, the longitude tracking circuit is turned off, otherwise it is turned on.

[0050] A1: Every time the earth rotates once, when the light source appears, the independent photoresistor 4 receives light, the sun-tracking system is activated, the reset system is turned off, the longitude light-seeking tube 203 receives light, the sun-tracking circuit is disconnected OFF, the sunrise limit switch is pressed, the circuit is OFF, and the system is stationary at this time;

[0051] A2: The sunlight (light source) angle changes with time until the longitude light-seeking tube 203 is closed, the sun-tracking circuit is turned on, the longitude rotation motor 201 runs to drive the longitude light-seeking tube 203 to track the sun, and at the same time the sunrise limit switch is released, the reset circuit is restored, and the synchronous output electrical circuit is started, and the photovoltaic panel motor rotating shaft 6 drives the photovoltaic panel body 7 to synchronously track the sun until the longitude light-seeking tube 203 receives light, the sun-tracking circuit is disconnected, the longitude sun-tracking is aligned, and the system is stationary;

[0052] A3: According to the principle of the earth's rotation, when the effective illumination ends, the independent photoresistor 4 is closed, the sun-tracking electrical circuit is OFF, the reset circuit path is ON, and the circuit path is transferred to the service reset circuit system to reverse and reset the longitude light-seeking tube 203 and activate the standby;

[0053] When the longitude light-seeking tube 203 is reversed and reset to its original position, the sunrise limit switch is pressed, closing the reset circuit system, cooperating with the rotation of the earth to complete a sun-chasing cycle, waiting for effective sunlight to appear again, and then performing another sun-chasing cycle. When the light source appears again and the first sun-chasing action is entered, the sunrise limit switch is released and reset, and the circuit is restored.

[0054] like Figure 1-Figure 5 As shown in the figure, the latitude sun tracking operation process of the search-light type fully automatic sun tracking system is as follows:

[0055] like Figure 3As shown in the figure, the short black arrow at the top is the direction of sunlight, the arc-shaped dotted arrow at the top is the movement trajectory of sunlight in the north and south pole directions, and the double-headed arrow on the right is the synchronous output electrical circuit;

[0056] Due to the inclination of the earth's axis, the earth's movement around the sun (year) forms a sun-facing trajectory that swings north and south along the equator according to date, time and season; this system also has the ability to track the sun in latitude;

[0057] When the mid-latitude angle light-seeking tube 304 receives light, the front end circuit is set to be disconnected, otherwise it is connected;

[0058] When the south latitude angle light-seeking tube 305 receives light, the back-end circuit is set to be open and rotate forward, otherwise it is open circuit;

[0059] When the north latitude angle light-seeking tube 303 receives light, the back-end circuit is set to be open and reversed, otherwise it is open;

[0060] The south latitude angle light search tube 305 and the north latitude angle light search tube 303 are connected in parallel, and then connected in series with the mid-latitude angle light search tube 304;

[0061] B1: When a light source appears, the system's independent photoresistor 4 receives light, and the latitude tracking electrical circuit is turned on. When the light source is south, the mid-latitude angle light-seeking tube 304 is closed and turned on, and the south latitude angle light-seeking tube 305 receives light and turns on. The latitude rotation motor 301 rotates forward, causing the mid-latitude angle light-seeking tube 304 to rotate and receive light. At this time, the latitude tracking circuit is turned off, and the system is stationary.

[0062] B2: When the light source is biased to the north, the mid-latitude angle light-seeking tube 304 is closed and ON, the north latitude angle light-seeking tube 303 is reversed when receiving light, and the mid-latitude angle light-seeking tube 304 rotates to receive light. At this time, the latitude sun tracking circuit is OFF and the system is stationary.

[0063] B3: When the light source disappears, the system's independent photoresistor 4 turns off the light, and the latitude sun tracking electrical circuit is OFF. This movement is repeated, and the system always maintains the best sun-facing angle within the effective lighting time range.

[0064] The longitude tracking and latitude tracking operations of the automatic sun tracking system are carried out simultaneously. The difference between the latitude tracking and longitude tracking is that: the annual swing cycle has a relatively low amount of movement; there is no need for a reset circuit and no limit switch;

[0065] Therefore, the light-finding fully automatic sun tracking system can be applied to any system operation that requires a corresponding light source, such as solar photovoltaic panel power generation sun tracking operation and is not limited to solar photovoltaic panel power generation sun tracking operation. It can operate independently without any other auxiliary systems such as timing correction system, global positioning system, etc., and there is no need to set the longitude and latitude of the location during installation. It is simple and convenient, ready to use, and can be installed and used in any illuminated area.

[0066] In summary, if Figure 1-Figure 6 As shown, when the light-seeking fully automatic sun-tracking system is used, first when the light source exists (daytime), the independent photoresistor 4 receives light, and the longitude sun-tracking circuit of the system is turned on. When the longitude sun-tracking light-seeking tube receives light, the longitude sun-tracking circuit is turned off, otherwise it is turned on.

[0067] Every time the earth rotates once, when the light source appears, the independent photoresistor 4 receives light, the sun-tracking system is activated, the reset system is turned off, the longitude light-detecting tube 203 receives light, the sun-tracking circuit is disconnected OFF, the sunrise limit switch is pressed, the circuit is OFF, and the system is stationary at this time;

[0068] The sunlight (light source) angle changes with time until the longitude light-seeking tube 203 is closed, the sun-tracking circuit is turned on, the longitude rotation motor 201 runs to drive the longitude light-seeking tube 203 to rotate in accordance with the sun, and at the same time the sunrise limit switch is released, the reset circuit is restored, and the synchronous output electrical circuit is started, and the photovoltaic panel motor rotating shaft 6 drives the photovoltaic panel body 7 to rotate synchronously in accordance with the sun, until the longitude light-seeking tube 203 receives light, the sun-tracking circuit is disconnected, the longitude sun-tracking is aligned, and the system is stationary;

[0069] According to the principle of the earth's rotation, when the effective illumination ends, the independent photoresistor 4 is closed, the sun-tracking electrical circuit is OFF, the reset circuit path is ON, and the circuit path is transferred to the service reset circuit system to reverse and reset the longitude light-seeking tube 203 and activate the standby;

[0070] When the longitude light-seeking tube 203 is reversed and reset to the original position, the sunrise limit switch is pressed, the reset circuit system is closed, and a sun-chasing cycle is completed in coordination with the rotation of the earth, and effective sunlight is waited for to appear again, and then another sun-chasing cycle is performed. When the light source appears again and the first sun-chasing action is entered, the sunrise limit switch is released and reset, and the circuit is restored;

[0071] When a light source appears, the system's independent photoresistor 4 receives light, and the latitude tracking electrical circuit is turned on. When the light source is south, the mid-latitude angle light-seeking tube 304 is closed and turned on, and the south latitude angle light-seeking tube 305 receives light and turns on. The latitude rotation motor 301 rotates forward, causing the mid-latitude angle light-seeking tube 304 to rotate and receive light. At this time, the latitude tracking circuit is turned off, and the system is stationary.

[0072] When the light source is north, the mid-latitude angle light-seeking tube 304 is closed and turned on, the north latitude angle light-seeking tube 303 is turned on and reversed, and the mid-latitude angle light-seeking tube 304 rotates and receives light. At this time, the latitude sun tracking circuit is OFF and the system is stationary.

[0073] When the light source disappears, the system's independent photoresistor 4 turns off the light, and the latitude sun tracking electrical circuit is OFF. This movement is repeated, and the system always maintains the best sun-facing angle within the effective lighting time range. The longitude sun tracking operation and the latitude sun tracking operation are carried out simultaneously.

[0074] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A fully automatic sun tracking system of the light-seeking type, comprising a light-transmitting protective hemispherical cover (1), a longitude sun tracking component (2), a latitude sun tracking component (3), a longitude sun tracking system, a longitude reset subsystem and a latitude sun tracking system, characterized in that: The bottom edge of the light-transmitting protective hemispherical cover (1) is fixed with a scale mounting base (5) by bolts. The interior of the light-transmitting protective hemispherical cover (1) is provided with a longitude sun-tracking assembly (2) and a latitude sun-tracking assembly (3). The longitude sun-tracking assembly (2) comprises a longitude rotating motor (201), a longitude rotating shaft (202) and a longitude light-seeking tube (203). The output end of the longitude rotating motor (201) is meshed with the longitude rotating shaft (202), and the surface of the longitude rotating shaft (202) is provided with a longitude light-seeking tube (203). The latitude sun-tracking assembly (3) comprises a latitude rotating motor (301), a latitude rotating shaft (302), a north latitude angle light-seeking tube (303), a mid-latitude angle light-seeking tube (304) and a south latitude angle light-seeking tube (305). The output end of the latitude rotation motor (301) is meshed with a latitude rotation shaft (302), and the surface of the latitude rotation shaft (302) is sequentially provided with a north latitude angle light search tube (303), a mid-latitude angle light search tube (304) and a south latitude angle light search tube (305), an independent photoresistor (4) is provided at the upper right corner of the inner part of the light-transmitting protective hemispherical cover (1), the longitude light search tube (203), the north latitude angle light search tube (303), the mid-latitude angle light search tube (304) and the south latitude angle light search tube (305) are connected to a photovoltaic panel motor rotation shaft (6) through a synchronous output electrical circuit, and the photovoltaic panel motor rotation shaft (6) is connected to a photovoltaic panel body (7), and there are two photovoltaic panel motor rotation shafts (6) in total.

2. The fully automatic sun tracking system according to claim 1, characterized in that: The two ends of the longitude rotation axis (202) are rotatably connected to the light-transmitting protective hemispherical cover (1), and the two ends of the longitude rotation axis (202) are connected to synchronous cleaning scraping rings (8), and the synchronous cleaning scraping rings (8) are attached to the surface of the light-transmitting protective hemispherical cover (1).

3. The fully automatic sun tracking system according to claim 1, characterized in that: The longitude tracking sun system is used to drive the photovoltaic panel body (7) to synchronously change the optimal longitude sun-facing angle by using the system to track the sun. The receiving longitude light-detecting tube (203) forms the ON / OFF state of the sun-tracking circuit path according to whether it receives light, so as to determine whether the longitude rotating motor (201) rotates or stops, thereby driving the system to correspond to the sunshine direction at the best longitude angle at all times.

4. The fully automatic sun tracking system according to claim 1, characterized in that: The longitude reset subsystem is used to turn off the sun tracking circuit OFF when the effective light source disappears, and at the same time start the reset circuit path ON to perform reverse reset to the original state, activate the sunrise limit switch, and turn off the reset circuit path OFF.

5. The fully automatic sun tracking system of claim 1, characterized in that: The latitude sun tracking system is used to drive the photovoltaic panel body (7) to synchronously change the optimal latitude sun-facing angle by using the system to track the sun. The north latitude angle light-finding tube (303), the mid-latitude angle light-finding tube (304) and the south latitude angle light-finding tube (305) are light-received to form a passage or a disconnection state, so as to determine the forward or reverse rotation of the latitude rotation motor (301), so as to drive the system to correspond to the sunshine direction at the best latitude angle at all times and stop running during the period of no light.

6. A light-seeking fully automatic sun tracking system according to any one of claims 1 to 5, characterized in that: The longitude tracking operation process of the light-seeking fully automatic sun tracking system is as follows: A1: Every time the earth rotates once, when the light source appears, the independent photoresistor (4) receives light, the sun tracking system is activated, the reset system is turned off, the longitude light detector (203) receives light, the sun tracking circuit is disconnected OFF, the sunrise limit switch is pressed, the circuit is OFF, and the system is stationary at this time; A2: The sunlight angle changes with time until the longitude light-seeking tube (203) is closed, the sun-tracking circuit is turned on, the longitude rotation motor (201) is turned on to drive the longitude light-seeking tube (203) to rotate in accordance with the sun, and at the same time, the sunrise limit switch is released, the reset circuit is restored, and the synchronous output electrical circuit is started, and the photovoltaic panel motor shaft (6) drives the photovoltaic panel body (7) to rotate synchronously in accordance with the sun, until the longitude light-seeking tube (203) is illuminated, the sun-tracking circuit is disconnected, the longitude sun-tracking tube is aligned, and the system is stationary; A3: According to the principle of the earth's rotation, when the effective light ends, the independent photoresistor (4) turns off the light, the sun tracking electrical circuit turns off, the reset circuit path turns on, and the circuit path is transferred to the service reset circuit system to reverse and reset the longitude light detector (203) and activate the standby.

7. The fully automatic sun tracking system of claim 6, characterized in that: In step A3, when the longitude light-seeking tube (203) is reversed and reset to the original position, the sunrise limit switch is pressed, the reset circuit system is closed, and a sun-chasing cycle is completed in coordination with the rotation of the earth, waiting for effective sunlight to appear again, and then another sun-chasing cycle is performed. When the light source appears again and the first sun-chasing action is entered, the sunrise limit switch is released and reset, and the circuit is restored.

8. A light-seeking fully automatic sun tracking system according to any one of claims 1 to 5, characterized in that: The latitude sun tracking operation process of the light-seeking fully automatic sun tracking system is as follows: B1: When a light source appears, the system's independent photoresistor (4) receives light, and the latitude tracking circuit is turned on. When the light source is south, the mid-latitude angle light-seeking tube (304) is turned on by closing the light, and the south latitude angle light-seeking tube (305) receives light and turns on by the latitude rotation motor (301) rotating forward, so that the mid-latitude angle light-seeking tube (304) rotates to receive light. At this time, the latitude tracking circuit is turned off, and the system is stationary. B2: When the light source is biased to the north, the mid-latitude angle light-seeking tube (304) is closed and turned on, the north latitude angle light-seeking tube (303) is turned on and reversed, and the mid-latitude angle light-seeking tube (304) rotates and receives light. At this time, the latitude sun tracking circuit is OFF and the system is stationary. B3: When the light source disappears, the system's independent photoresistor (4) turns off the light, and the latitude tracking sun electrical circuit is OFF. This movement is repeated so that the system always maintains the best sun-facing angle within the effective illumination time range.

9. A fully automatic sun tracking system according to any one of claims 1 to 8, characterized in that: The longitude sun tracking operation and the latitude sun tracking operation of the light-finding type fully automatic sun tracking system are performed simultaneously.

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