An autonomous light-tracking device and method for a tower barrel

Abstract

The present invention discloses an autonomous sunlight-tracking device and method for a tower barrel. The sunlight-tracking device includes: a photovoltaic panel assembly; a sunlight-tracking assembly installed on the tower barrel, the sunlight-tracking assembly being connected to the photovoltaic panel assembly and used to drive the photovoltaic panel assembly to rotate around the tower barrel; and an angle adjustment assembly used to adjust the included angle between the photovoltaic panel assembly and the ground. For this autonomous sunlight-tracking device and method for the tower barrel, the photovoltaic device is installed on the tower barrel. By utilizing the independence of the tower, there will be no problems such as mutual interference and shading between the autonomous sunlight-tracking photovoltaic panels on the tower. Through the cooperation of a photoelectric sensor, an origin dial and a controller on the tower barrel, the angle of the photovoltaic panel assembly can be adjusted regularly to achieve self-calibration of the sunlight-tracking device for the solar altitude angle. At the same time, the controller controls the sunlight-tracking assembly to drive the photovoltaic panel assembly to track the sunlight, thereby realizing the annual autonomous sunlight-tracking of the sunlight-tracking device on the tower barrel, improving the power generation efficiency and reducing the manufacturing cost.

Description

Technical Field

[0001] The present invention relates to an autonomous sunlight tracking device and method for a tower barrel, belonging to the technical field of photovoltaic power generation. Background Art

[0002] Solar energy has huge application potential and market space. Therefore, vigorously promoting clean energy such as solar energy will be the development direction of human future energy and a great project for the benefit of future generations.

[0003] Current photovoltaic power generation is mainly installed on roofs, the ground, mountains, water surfaces, etc., mostly installed on a "plane".

[0004] The installation and fixation of solar panels (heat collection panels) in many occasions can only deflect in a fixed direction and cannot keep the light collecting surface always facing the direction of sunlight irradiation, reducing the utilization rate of solar energy.

[0005] Currently, solar automatic sunlight tracking devices mainly include a control unit, a solar panel, and a mechanical drive device. Among them, the control unit includes a photosensitive sensing circuit and a hysteresis voltage comparator, which collect solar angle information through the photosensitive sensing circuit and the hysteresis voltage comparator; by receiving the solar angle information, it controls the drive device to drive the solar panel to rotate and absorb sunlight, and charges the battery pack through the solar panel, thereby effectively improving the utilization rate of solar energy and the sun-tracking state of the solar panel.

[0006] Due to the current traditional photovoltaic panels being installed based on a "plane", there will be problems of mutual interference and occlusion between the photovoltaic panels when the sunlight tracking device rotates. Although the installation method based on a "plane" improves the power generation of a single photovoltaic panel, from the perspective of the overall power generation of the photovoltaic panels on the entire piece of land, there is no significant improvement;

[0007] It can be seen that in order to solve the above technical problems, there is an urgent need for an autonomous sunlight tracking device and method for a tower barrel. Summary of the Invention

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an autonomous sunlight tracking device and method for a tower barrel. The photovoltaic device is installed on the tower barrel. Utilizing the independence of the tower, there will be no problems of mutual interference and shading between the autonomous sunlight tracking photovoltaic panels on the tower. Through the cooperation of a photoelectric sensor, an origin dial, and a controller on the tower barrel, it is possible to adjust the angle of the photovoltaic panel assembly regularly to achieve self-calibration of the sunlight tracking device for the solar altitude angle. At the same time, the controller controls the sunlight tracking assembly to drive the photovoltaic panel assembly to track the sun, thereby realizing the annual autonomous sunlight tracking of the sunlight tracking device on the tower barrel, improving the power generation efficiency and reducing the manufacturing cost.

[0009] To achieve the above object / To solve the above technical problems, the present invention is implemented by the following technical solutions:

[0010] In a first aspect, the present invention provides an autonomous sunlight-tracking device for a tower barrel, comprising:

[0011] A photovoltaic panel assembly;

[0012] A sunlight-tracking assembly, mounted on the tower barrel, the sunlight-tracking assembly being connected to the photovoltaic panel assembly and used for driving the photovoltaic panel assembly to rotate around the tower barrel;

[0013] An angle adjustment assembly, used for adjusting the angle between the photovoltaic panel assembly and the ground, the angle adjustment assembly comprising a connection end and a telescopic end, one end of the connection end being slidably connected to the tower barrel and capable of rotating circumferentially along the tower barrel following the photovoltaic panel assembly driven by the sunlight-tracking assembly, the other end of the connection end being hinged to the telescopic end, one end of the telescopic end being connected to the connection end, and the other end of the telescopic end being hinged to the photovoltaic panel assembly;

[0014] A photoelectric sensor, fixed on the tower barrel and signal-connected to a controller;

[0015] An origin dial, the origin dial being installed on one side of the sunlight-tracking assembly facing the photoelectric sensor;

[0016] A controller, used for controlling the sunlight-tracking assembly to drive the photovoltaic panel assembly to rotate around the tower barrel. When the origin dial passes by the photoelectric sensor, the controller controls the angle adjustment assembly to calibrate the angle of the photovoltaic panel assembly.

[0017] Furthermore, it further comprises a first annular slide rail and a second annular slide rail. The first annular slide rail and the second annular slide rail are fixed on the tower barrel along the height direction of the tower barrel. The sunlight-tracking assembly is rotationally arranged on the tower barrel through the first annular slide rail, and the angle adjustment assembly is rotationally arranged on the tower barrel through the second annular slide rail.

[0018] Furthermore, the sunlight-tracking assembly comprises a first slider, a bearing seat and a driving end. Among them,

[0019] The first slider is slidably installed on the first annular slide rail, the bearing seat is fixed on the first slider and is connected to the photovoltaic panel assembly, and the driving end is used for driving the first slider to move on the first annular slide rail so as to drive the photovoltaic panel assembly to rotate.

[0020] Furthermore, the connection end comprises a second slider, and the telescopic end comprises an electric push rod. Among them,

[0021] The second slider is installed on the second annular slide rail, and both ends of the electric push rod are respectively connected to the slider and the photovoltaic panel assembly through pin shafts.

[0022] Further, the driving end includes a driving member disposed on the outer periphery of the first annular slide rail. A driving gear is provided on the output shaft of the driving member, and an annular rack meshing with the driving gear is provided on the outer periphery of the tower barrel. The annular rack is fixed to the first slider.

[0023] Further, the driving member includes a planetary speed reducer and a servo motor. Among them,

[0024] The planetary speed reducer and the servo motor are fixed on the tower barrel. The servo motor is connected to the planetary speed reducer, and the planetary speed reducer is connected to the driving gear.

[0025] Further, it further includes a connection reinforcing member for connecting the bearing seat and the photovoltaic panel assembly.

[0026] Further, the photovoltaic panel assembly includes a plurality of photovoltaic panels, and the plurality of photovoltaic panels are arranged in a U shape outside the tower barrel.

[0027] Further, it further includes a left limit dial and a right limit dial. Among them,

[0028] The left limit dial, the origin dial, and the right limit dial are sequentially arranged at equal intervals along the circumferential direction of the annular rack on the side of the annular rack facing the first annular slide rail;

[0029] The photoelectric sensor is installed on the side of the first annular slide rail facing the annular rack and is signal-connected to the controller.

[0030] In a second aspect, the present invention provides a light-tracking method for the tower-barrel self-tracking device described in the first aspect, including:

[0031] Determine the target adjustment position of the current photovoltaic panel assembly, and adjust the photovoltaic panel assembly to the target adjustment position through the angle adjustment assembly;

[0032] Start the sun-tracking component to drive the photovoltaic panel assembly to rotate around the tower barrel. During the rotation of the photovoltaic panel assembly, when the origin dial passes through the photoelectric sensor, the controller controls the angle adjustment assembly to calibrate the angle of the photovoltaic panel assembly;

[0033] Whenever the photovoltaic panel assembly rotates around the tower barrel for one solar rotation period and when the origin dial passes through the photoelectric sensor, re-determine the target adjustment position of the photovoltaic panel assembly, and adjust the photovoltaic panel assembly to the new target adjustment position through the angle adjustment assembly;

[0034] The method for determining the target adjustment position of the photovoltaic panel assembly includes: repeatedly adjusting the photovoltaic panel assembly through the angle adjustment assembly, detecting the power generation power of the photovoltaic panel assembly during the adjustment process, recording the current position when the maximum power generation power is detected, and using this position as the target adjustment position. If it is identified that the power generation power is lower than the preset threshold, it is determined to be a cloudy day, and the angle of the photovoltaic panel assembly is recalibrated the next day to obtain a new target adjustment position. If the difference between the original angle and the angle of the photovoltaic panel assembly at the new target adjustment position is greater than 2°, it is determined to be an instantaneous cloud occlusion, and the angle of the photovoltaic panel assembly is recalibrated the next day.

[0035] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0036] The self-tracking light device for a tower barrel provided by the present invention installs the photovoltaic device on the tower barrel. Utilizing the independence of the tower, there will be no problems such as mutual interference and shading between the self-tracking light photovoltaic panels on the tower. Through the cooperation of a photoelectric sensor, an origin dial and a controller on the tower barrel, it is possible to adjust the angle of the photovoltaic panel assembly regularly to achieve self-calibration of the tracking light device for the solar altitude angle. At the same time, the controller controls the tracking sunlight assembly to drive the photovoltaic panel assembly to track the sunlight, thereby realizing the annual self-tracking of the tracking light device on the tower barrel, improving the power generation efficiency and reducing the manufacturing cost.

[0037] The self-tracking light device for a tower barrel provided by the present invention is provided with a left limit dial and a right limit dial on the annular rack, which can prevent the control system parameters from being incorrect or the tracking sunlight assembly from exceeding the preset stroke in the manual adjustment mode, thereby ensuring the stability of the entire device.

[0038] The tracking light method provided by the present invention, by adapting to the above-mentioned self-tracking light device for a tower barrel, when every other solar rotation period and the origin dial passes through the photoelectric sensor, while adjusting the angle of the photovoltaic panel assembly through the angle adjustment assembly, the power generation power of the photovoltaic panel is detected, so as to determine the best adjustment position of the photovoltaic panel assembly by detecting the maximum power generation power of the photovoltaic panel, thereby realizing the automatic calibration of the angle of the photovoltaic panel assembly. Description of the Drawings

[0039] Figure 1 is a schematic structural diagram of the self-tracking light device for a tower barrel provided in Embodiment 1;

[0040] Figure 2 is Figure 1 a schematic side view of the structure of the self-tracking light device for the tower barrel shown;

[0041] Figure 3 is Figure 1 a schematic rear view of the structure of the self-tracking light device for the tower barrel shown;

[0042] Figure 4 is Figure 2Enlarged schematic diagram of the structure at I in the self-tracking light device for the shown tower barrel;

[0043] Figure 5 is Figure 2 Enlarged schematic diagram of the structure at II in the self-tracking light device for the shown tower barrel;

[0044] Figure 6 is Figure 3 Enlarged schematic diagram of the structure at A in the self-tracking light device for the shown tower barrel;

[0045] Figure 7 is Figure 1 Top view schematic diagram of the structure of the self-tracking light device for the shown tower barrel;

[0046] Figure 8 is Figure 7 Enlarged schematic diagram of the structure at III in the self-tracking light device for the shown tower barrel;

[0047] Figure 9 Enlarged schematic diagram of the structure of the driving gear.

[0048] In the figure: 1. Photovoltaic panel assembly; 2. Sun-tracking assembly; 201. First slider; 202. Bearing seat; 203. Driving gear; 204. Ring rack; 205. Planetary reducer; 206. Servo motor; 207. Connection reinforcement; 208. Left limit dial; 209. Right limit dial; 3. Angle adjustment assembly; 301. Second slider; 302. Electric push rod; 303. Top pin shaft; 304. Bottom pin shaft; 305. Push rod connection part; 4. Photoelectric sensor; 5. Origin dial; 6. Tower barrel; 7. First annular slide rail; 8. Second annular slide rail. Specific implementation manner

[0049] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and cannot be used to limit the protection scope of the present invention.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0051] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances. Embodiment

[0052] As Figures 1 to 3 and Figure 9 shown, this embodiment provides an autonomous sunlight tracking device for a tower barrel, including:

[0053] Photovoltaic panel assembly 1;

[0054] Sunlight tracking assembly 2, mounted on the tower barrel 6, and the sunlight tracking assembly 2 is connected to the photovoltaic panel assembly 1 for driving the photovoltaic panel assembly 1 to rotate around the tower barrel 6;

[0055] Angle adjustment assembly 3, used to adjust the angle between the photovoltaic panel assembly 1 and the ground. The angle adjustment assembly 3 includes a connection end and a telescopic end. One end of the connection end is slidably connected to the tower barrel 6 and can rotate circumferentially along the tower barrel 6 with the photovoltaic panel assembly 1 driven by the sunlight tracking assembly 2. The other end of the connection end is hinged to the telescopic end. One end of the telescopic end is connected to the connection end, and the other end of the telescopic end is hinged to the photovoltaic panel assembly 1;

[0056] Photoelectric sensor 4, fixed on the tower barrel 6 and signal-connected to a controller;

[0057] Origin dial 5, and the origin dial 5 is mounted on one side of the sunlight tracking assembly 2 facing the photoelectric sensor 4;

[0058] A controller is used to control the sunlight-tracking component 2 to drive the photovoltaic panel component 1 to rotate around the tower barrel 6. When the origin dial 5 passes by the photoelectric sensor 4, the controller controls the angle adjustment component 3 to calibrate the angle of the photovoltaic panel component 1.

[0059] In the above technical solution, for the self-tracking device for the tower barrel provided in this embodiment, through the cooperation of the photoelectric sensor 4, the origin dial 5 and the controller, it is possible to realize the timed adjustment of the angle of the photovoltaic panel component 1 to achieve the self-calibration of the tracking device for the sun altitude angle. At the same time, the controller controls the sunlight-tracking component 2 to drive the photovoltaic panel component 1 to track the sunlight, thereby realizing the annual self-tracking of the tracking device, improving the power generation efficiency and reducing the manufacturing cost.

[0060] The above tower barrel 6 includes but is not limited to: medium and small-sized wind turbine towers, electric poles, street lamps, signal towers. Embodiment

[0061] As Figures 4 to 8 shown, the difference between the self-tracking device for the tower barrel provided in this embodiment and the self-tracking device for the tower barrel described in Embodiment 1 is that:

[0062] It further includes a first annular slide rail 7 and a second annular slide rail 8. The first annular slide rail 7 and the second annular slide rail 8 are fixed on the tower barrel 6 along the height direction of the tower barrel 6. The sunlight-tracking component 2 is rotatably arranged on the tower barrel 6 through the first annular slide rail 7, and the angle adjustment component 3 is rotatably arranged on the tower barrel 6 through the second annular slide rail 8.

[0063] The sunlight-tracking component 2 includes a first slider 201, a bearing seat 202 and a driving end. Among them,

[0064] The first slider 201 is slidably installed on the first annular slide rail 7. The bearing seat 202 is fixed on the first slider 201 and is connected to the photovoltaic panel component 1. The driving end is used to drive the first slider 201 to move on the first annular slide rail 7 to drive the photovoltaic panel component 1 to rotate.

[0065] The connecting end includes a second slider 301, and the telescopic end includes an electric push rod 302. Among them,

[0066] The second slider 301 is installed on the second annular slide rail 8. Both ends of the electric push rod 302 are respectively connected to the slider and the photovoltaic panel component 1 through pin shafts. In this embodiment, the pin shafts include a top pin shaft 303 and a bottom pin shaft 304. Among them, the top pin shaft 303 is installed on the photovoltaic panel component 1, and the bottom pin shaft is fixed on the second slider 301. The movable end of the electric push rod 302 is connected to the top pin shaft 303 through a push rod connecting piece 305, and the fixed end of the electric push rod 302 is connected to the bottom pin shaft 304.

[0067] To drive the sunlight - tracking component 2 at the driving end, the driving end includes a driving member arranged on the outer periphery of the first annular slide rail 7. A driving gear 203 is provided on the output shaft of the driving member. An annular rack 204 meshing with the driving gear 203 is provided on the outer periphery of the tower barrel 6, and the annular rack 204 is fixed to the first slider 201.

[0068] The driving member includes a planetary speed reducer 205 and a servo motor 206. Among them,

[0069] The planetary speed reducer 205 and the servo motor 206 are fixed on the tower barrel 6. The servo motor 206 is connected to the planetary speed reducer 205, and the planetary speed reducer 205 is connected to the driving gear 203.

[0070] It further includes a connecting and strengthening member 207, and the connecting and strengthening member 207 is used to connect the bearing seat 202 and the photovoltaic panel assembly 1.

[0071] To cooperate with the sunlight - tracking component 2 to ensure the light - tracking efficiency of the photovoltaic panel assembly 1, the photovoltaic panel assembly 1 includes a plurality of photovoltaic panels, and the plurality of photovoltaic panels are arranged in a U - shape outside the tower barrel 6.

[0072] As Figure 9 shown, to prevent incorrect control system parameters or the sunlight - tracking component exceeding the preset stroke in the manual adjustment mode, it further includes a left limit dial 208 and a right limit dial 209. Among them,

[0073] The left limit dial 208, the origin dial 5, and the right limit dial 209 are sequentially arranged at equal intervals along the circumferential direction of the annular rack 204 on the side of the annular rack 204 facing the first annular slide rail 7;

[0074] The photoelectric sensor 4 is installed on the side of the first annular slide rail 7 facing the annular rack 204 and is signal - connected to the controller. Embodiment

[0075] This embodiment provides a light - tracking method for the tower - barrel - used independent light - tracking device described in Embodiment 1, including:

[0076] Determine the target adjustment position of the current photovoltaic panel assembly 1, and adjust the photovoltaic panel assembly 1 to the target adjustment position through the angle adjustment component 3;

[0077] Start the sunlight - tracking component 2 to drive the photovoltaic panel assembly 1 to rotate around the tower barrel 6. During the rotation of the photovoltaic panel assembly 1, when the origin dial 5 passes through the photoelectric sensor 4, the controller controls the angle adjustment component 3 to calibrate the angle of the photovoltaic panel assembly 1;

[0078] Whenever the photovoltaic panel assembly 1 rotates around the tower barrel 6 for one solar rotation period, and when the origin paddle 5 passes by the photoelectric sensor 4, re-determine the target adjustment position of the photovoltaic panel assembly 1, and adjust the photovoltaic panel assembly 1 to the new target adjustment position through the angle adjustment assembly 3;

[0079] The method for determining the target adjustment position of the photovoltaic panel assembly 1 includes: repeatedly adjusting the photovoltaic panel assembly 1 through the angle adjustment assembly 3, detecting the power generation power of the photovoltaic panel assembly 1 during the adjustment process, when the maximum power generation power is detected, record the current position and use this position (the angle of the photovoltaic panel assembly 1 at this time) as the target adjustment position. If it is identified that the power generation power is lower than the preset threshold, it is determined to be a cloudy day, and the angle of the photovoltaic panel assembly 1 is re-calibrated the next day to obtain a new target adjustment position; if the difference between the original angle and the angle of the photovoltaic panel assembly 1 at the new target adjustment position is greater than 2°, it is determined to be an instantaneous cloud occlusion, and the angle of the photovoltaic panel assembly 1 is re-calibrated the next day.

[0080] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and deformations can still be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

Claims

1. An autonomous light-chasing device for a tower, characterized in that: include: Photovoltaic panel assembly (1); A sun-chasing assembly (2) is mounted on the tower (6); the sun-chasing assembly (2) is connected to the photovoltaic panel assembly (1) and is used to drive the photovoltaic panel assembly (1) to rotate around the tower (6); An angle adjustment component (3) is used to adjust the angle between the photovoltaic panel component (1) and the ground, the angle adjustment component (3) comprising a connecting end and a telescopic end, one end of the connecting end is slidably connected to the tower (6) and can rotate along the circumference of the tower (6) with the photovoltaic panel component (1) driven by the sun-tracking component (2), the other end of the connecting end is hinged to the telescopic end, one end of the telescopic end is connected to the connecting end, and the other end of the telescopic end is hinged to the photovoltaic panel component (1); A photoelectric sensor (4) is fixed on the tower (6) and is signal-connected to a controller; An origin pick (5), the origin pick (5) being mounted on a side of the sun-tracking component (2) facing the photoelectric sensor (4); A controller is used to control the sun-chasing component (2) to drive the photovoltaic panel component (1) to rotate around the tower (6); when the origin pick (5) passes the photoelectric sensor (4), the controller controls the angle adjustment component (3) to calibrate the angle of the photovoltaic panel component (1); each time the photovoltaic panel component (1) rotates around the tower (6) for one solar rotation cycle and when the origin pick (5) passes the photoelectric sensor (4), the target adjustment position of the photovoltaic panel component (1) is re-determined, and the photovoltaic panel component (1) is adjusted to the new target adjustment position through the angle adjustment component (3); The method for determining the target adjustment position of a photovoltaic panel assembly (1) comprises: repeatedly adjusting the photovoltaic panel assembly (1) by means of an angle adjustment assembly (3), detecting the power generation of the photovoltaic panel assembly (1) during the adjustment process, recording the current position when the maximum power generation is detected and using the position as the target adjustment position, determining that it is cloudy if the power generation is lower than a preset threshold, recalibrating the angle of the photovoltaic panel assembly (1) the next day to obtain a new target adjustment position; and determining that the angle of the photovoltaic panel assembly (1) at the original angle and the new target adjustment position is greater than 2°, determining that it is momentarily blocked by clouds, and recalibrating the angle of the photovoltaic panel assembly (1) the next day.

2. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: It also comprises a first annular slide rail (7) and a second annular slide rail (8), wherein the first annular slide rail (7) and the second annular slide rail (8) are fixed on the tower (6) along the height direction of the tower (6), the sun-chasing component (2) is rotatably arranged on the tower (6) via the first annular slide rail (7), and the angle adjustment component (3) is rotatably arranged on the tower (6) via the second annular slide rail (8).

3. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: The sun-tracking assembly (2) comprises a first slider (201), a bearing seat (202) and a driving end, wherein: The first slider (201) is slidably mounted on the first annular slide rail (7), the bearing seat (202) is fixed on the first slider (201) and connected to the photovoltaic panel assembly (1), and the driving end is used to drive the first slider (201) to move on the first annular slide rail (7) to drive the photovoltaic panel assembly (1) to rotate.

4. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: The connecting end comprises a second sliding block (301), and the telescopic end comprises an electric push rod (302), wherein: The second sliding block (301) is mounted on a second annular sliding rail (8), and both ends of the electric push rod (302) are connected to the sliding block and the photovoltaic panel assembly (1) respectively through pins.

5. The tower-mounted autonomous light-chasing device according to claim 3, characterized in that: The driving end comprises a driving member arranged on the periphery of the first annular slide rail (7), the output shaft of the driving member is provided with a driving gear (203), the periphery of the tower (6) is provided with an annular rack (204) meshing with the driving gear (203), and the annular rack (204) is fixed to the first sliding block (201).

6. The tower-mounted autonomous light-chasing device according to claim 5, characterized in that: The driving member comprises a planetary reducer (205) and a servo motor (206), wherein: The planetary reducer (205) and the servo motor (206) are fixed on the tower (6); the servo motor (206) is connected to the planetary reducer (205); and the planetary reducer (205) is connected to the driving gear (203).

7. The tower-mounted autonomous light-chasing device according to claim 3, characterized in that: It also includes a connection reinforcement member (207), wherein the connection reinforcement member (207) is used to connect the bearing seat (202) and the photovoltaic panel assembly (1).

8. The tower-mounted autonomous light-chasing device according to claim 1, characterized in that: The photovoltaic panel assembly (1) comprises a plurality of photovoltaic panels, and the plurality of photovoltaic panels are arranged in a U shape outside the tower (6).

9. The tower-mounted autonomous light-chasing device according to claim 5, characterized in that: It also includes a left limit paddle (208) and a right limit paddle (209), wherein: The left limit paddle (208), the origin paddle (5) and the right limit paddle (209) are arranged in sequence and equidistantly along the circumferential direction of the annular rack (204) on a side of the annular rack (204) facing the first annular slide rail (7); The photoelectric sensor (4) is mounted on a side of the first annular slide rail (7) facing the annular rack (204), and is connected to the controller signal.

10. A light chasing method, used in the tower autonomous light chasing device according to any one of claims 1 to 9, characterized in that: include: Determining a target adjustment position of a current photovoltaic panel assembly (1), and adjusting the photovoltaic panel assembly (1) to the target adjustment position by means of an angle adjustment assembly (3); The sun-chasing assembly (2) is started to drive the photovoltaic panel assembly (1) to rotate around the tower (6); during the rotation of the photovoltaic panel assembly (1), when the origin pick (5) passes through the photoelectric sensor (4), the controller controls the angle adjustment assembly (3) to calibrate the angle of the photovoltaic panel assembly (1); Whenever the photovoltaic panel assembly (1) rotates around the tower (6) for one solar rotation cycle and when the origin pick (5) passes the photoelectric sensor (4), the target adjustment position of the photovoltaic panel assembly (1) is re-determined, and the photovoltaic panel assembly (1) is adjusted to the new target adjustment position through the angle adjustment assembly (3); The method for determining the target adjustment position of a photovoltaic panel assembly (1) comprises: repeatedly adjusting the photovoltaic panel assembly (1) by means of an angle adjustment assembly (3), detecting the power generation of the photovoltaic panel assembly (1) during the adjustment process, recording the current position when the maximum power generation is detected and using the position as the target adjustment position, determining that it is cloudy if the power generation is lower than a preset threshold, recalibrating the angle of the photovoltaic panel assembly (1) the next day to obtain a new target adjustment position; and determining that the angle of the photovoltaic panel assembly (1) at the original angle and the new target adjustment position is greater than 2°, determining that it is momentarily blocked by clouds, and recalibrating the angle of the photovoltaic panel assembly (1) the next day.

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