Photovoltaic power station detection system

Abstract

The invention relates to a photovoltaic power station detection system, which comprises a track, a walking mechanism, an image acquisition device and a controller, the track is arranged along each pile foundation, the walking mechanism is arranged on the track, the image acquisition device is arranged on the walking mechanism, and the image acquisition device is used for acquiring image information of scale marks on the outer wall of each pile foundation; and the controller is connected with the image acquisition device and is used for identifying the position of the scale line according to the image information and judging whether the pile foundation is settled or not by comparing the position of the scale line with a preset position, and if the error between the detected position of the scale line and the preset position exceeds a preset threshold value, the corresponding pile foundation is settled. Pile foundation settlement of a large-scale overwater photovoltaic power station can be accurately detected, and the specific settlement condition of each pile foundation can be obtained in time.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power stations, and in particular to a photovoltaic power station detection system. Background Art

[0002] A photovoltaic power station is a direct power generation system that absorbs solar radiation energy through the photovoltaic effect principle of the PN junction of semiconductor electronic devices such as solar cells, and then converts it into electrical energy through a conversion device.

[0003] Conventional land-based photovoltaic power stations have the disadvantage of occupying a large area. In order to improve the efficiency of solar energy utilization, water-based photovoltaic power stations have emerged. Water-based photovoltaic power stations are mainly divided into two categories: floating and pile-based fixed. Usually, if the water depth is less than 5m, high-pile installation is adopted, such as beach power stations, etc., and floating installation can be adopted when the water depth is more than 5m, such as marine photovoltaic power stations. At present, for pile-based fixed-water photovoltaic power stations, since the pile foundation installation environment is mostly silt or soft riverbed, foundation settlement may occur.

[0004] In the prior art, the main method for observing the settlement of pile foundations is to conduct regular manual inspections, that is, to observe with the naked eye, and to bind a marker rod on the pile foundation and mark it, and observe and record the settlement of the pile foundation. However, this settlement observation method relies too much on manual labor, and cannot achieve simultaneous, long-term, and large-scale monitoring. When the number of pile foundations is large, it is impossible to detect the settlement problem of a single pile foundation in time, and there is often a lag. At the same time, since the water level in natural waters usually shows periodic high and low changes at different times, such as the difference between the water level at high tide and low tide, manual observation is easily affected by the change in the height of the water level, resulting in misjudgment. Therefore, how to conveniently realize the settlement detection of pile foundations of large-scale water photovoltaic power stations and timely obtain the specific settlement of each pile foundation is a technical problem faced by technical personnel in this field. Summary of the invention

[0005] The purpose of the present invention is to provide a photovoltaic power station detection system to solve the above-mentioned problems existing in the current detection of photovoltaic power stations on water.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A photovoltaic power station detection system comprises a track, a traveling mechanism, an image acquisition device, and a controller, wherein the track is arranged along each pile foundation, the traveling mechanism is arranged on the track, the image acquisition device is arranged on the traveling mechanism, the image acquisition device is used to acquire image information of scale lines located on the outer wall of each pile foundation, the controller is connected to the image acquisition device, and is used to identify the position of the scale lines according to the image information, and to judge whether the pile foundation has settled by comparing the scale line position with a preset position; if the error between the detected scale line position and the preset position exceeds a preset threshold, the corresponding pile foundation has settled.

[0008] Further preferably, it also includes a tidal sensor, which is connected to the controller. The tidal sensor is used to collect tidal data of the water area where the photovoltaic power station is located and transmit the tidal data to the controller. The controller is used to correct the scale line position according to the tidal data.

[0009] Further preferably, the controller includes a calculation module and a settlement judgment module, wherein the calculation module is used to calculate the settlement according to the collected image information according to the formula Calculate the tick mark position, where

[0010] Gx=(-1)A[-1,-1]+0A[-1,0]+1A[-1,1]+(-2)A[0,-1]+0A[0,0]

[0011] +2A[0,1]+(-1)A[1,-1]+0A[1,0]+1*A[1,1];

[0012] Gy=(-1)A[-1,-1]+(-2)A[0,-1]+(-1)A[1,-1]+0A[-1,0]+

[0013] 0A[0,0]+0A[1,0]+1A[-1,1]+2A[0,1]+1*A[1,1];

[0014] A represents the original image, Gx represents the image detected by the horizontal edge, Gy represents the image detected by the vertical edge, and G represents the scale line position; the sedimentation judgment module is used to determine whether the error between the scale line position calculated by the calculation module and the preset position exceeds the preset threshold.

[0015] Further preferably, the calculation module is also used to obtain a tidal compensation value based on the tidal data, and calculate the actual scale line position after tidal compensation based on the tidal compensation value, and the settlement judgment module is used to judge whether the error between the actual scale line position after tidal compensation and the preset position exceeds a threshold.

[0016] Further preferably, the walking mechanism includes a support frame and a driving wheel group, the driving wheel is arranged on the upper part of the support frame, the driving wheel group is slidably arranged on the track for moving along the track, the driving wheel group includes a base, a driving wheel and a driving motor, two groups of driving wheels are provided, the two groups of driving wheels are rotated and arranged on the base at intervals, the driving motor is connected to the driving wheel by transmission, a support plate is provided at the lower part of the track, the driving wheel frame is mounted on the support plate, and the driving motor is used to drive the driving wheel to move along the support plate.

[0017] Further preferably, a power supply and a charging module are provided on the support frame, the power supply is connected to the image acquisition device and the controller, the charging module is connected to the power supply, and the charging module is used to connect to the energy storage module of the photovoltaic power station to replenish the power of the power supply.

[0018] Further preferably, the track is arranged in a serpentine shape to bypass the pile foundations of the photovoltaic power station in sequence.

[0019] A photovoltaic power station detection method comprises the following steps:

[0020] 1) The image acquisition device is driven by the walking mechanism to move along the track, photograph the scale lines on the pile foundation, and obtain the tidal data of the tidal sensor;

[0021] 2) Collecting and preprocessing the scale line data and tidal data, and storing the acquired scale line data and tidal data in a database after collecting and preprocessing them;

[0022] 3) Establish a tidal compensation model, collect historical tidal data, analyze the laws and cycles of tidal changes, use the tidal prediction model and historical data to train a tidal prediction model, and calculate the tidal compensation value through the model based on the predicted tidal height and shooting time;

[0023] 4) Conduct settlement monitoring, combine the acquired scale line data with the tidal compensation value, and obtain the actual scale line position after tidal compensation. If the actual scale line position exceeds the preset safety threshold, an early warning will be issued immediately.

[0024] Beneficial effects of the present invention:

[0025] The photovoltaic power station detection system of the present invention realizes continuous monitoring of the settlement of the pile foundation of the water photovoltaic power station in an automated manner, greatly improves the monitoring efficiency and accuracy, and reduces the cost and error of manual inspection. The scale line image of the outer wall of the pile foundation is accurately captured by the image acquisition device, and the image is processed and analyzed by the controller, so that the settlement of the pile foundation can be identified with high precision, providing an effective means for timely discovery and handling of potential safety hazards. The system can monitor the settlement state of the pile foundation in real time, and issue an early warning in time when it is detected that the settlement exceeds a preset threshold, thereby allowing operation and maintenance personnel to respond quickly to prevent damage to the power station or performance degradation caused by pile foundation settlement. Through continuous settlement monitoring, the system helps to improve the overall safety and stability of the water photovoltaic power station, extend the service life of the power station, and reduce economic losses caused by settlement problems. The system can set tracks along each pile foundation, is suitable for water photovoltaic power stations of different scales and layouts, and has good scalability and flexibility.

[0026] In summary, the technical solution of the photovoltaic power station detection system can significantly improve the safety, stability and operation efficiency of the water photovoltaic power station, reduce the operation and maintenance costs, and provide strong guarantees for the long-term stable operation of the power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the track arrangement position in the photovoltaic power station detection system of the present invention;

[0028] Figure 2 It is a structural diagram of pile foundation;

[0029] Figure 3 It is a structural schematic diagram of the walking mechanism and track in the photovoltaic power station detection system of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the walking mechanism in the photovoltaic power station detection system of the present invention;

[0031] Figure 5 It is a schematic diagram of the connection of some components in the photovoltaic power station detection system of the present invention.

[0032] The names corresponding to the marks in the figure are:

[0033] 1. Track, 11. Support plate, 2. Walking mechanism, 21. Support frame, 22. Driving wheel group, 221. Base, 222. Driving wheel, 223. Driving motor, 3. Image acquisition device, 4. Controller, 41. Calculation module, 42. Settlement judgment module, 5. Pile foundation, 6. Scale line, 7. Tidal sensor, 8. Power supply, 9. Charging module. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0035] like Figures 1 to 5 As shown, the present invention provides a photovoltaic power station detection system, including a track 1, a walking mechanism 2, an image acquisition device 3, and a controller 4.

[0036] The track 1 is arranged along each pile foundation 5. Specifically, Figure 1 As shown, the track 1 is serpentine so as to bypass the pile foundations 5 of the photovoltaic power station in sequence. The running mechanism 2 is arranged on the track 1 and can move freely on the track 1. The image acquisition device 3 is installed on the running mechanism 2 and is used to collect image information of the scale lines 6 on the outer wall of each pile foundation 5.

[0037] The controller 4 is connected to the image acquisition device 3 and is used to process the image information and identify the position of the scale line 6. By comparing the identified position of the scale line 6 with the preset position, the controller 4 can determine whether the pile foundation 5 has settled. If the error between the detected position of the scale line 6 and the preset position exceeds a preset threshold, it is determined that the corresponding pile foundation 5 has settled.

[0038] Further, Figure 5 As shown, the system further includes a tidal sensor 7, which is connected to the controller 4 and is used to collect tidal data of the waters where the photovoltaic power station is located, and transmit the data to the controller 4. The controller 4 corrects the position of the scale line 6 according to the received tidal data to eliminate the influence of tidal changes on settlement detection.

[0039] Specifically, the controller 4 includes a calculation module 41 and a settlement judgment module 42. The calculation module 41 uses a specific algorithm to process image information and accurately calculate the position of the scale line 6. The settlement judgment module 42 determines whether the error between the actual position of the scale line 6 and the preset position exceeds the safety range based on the output of the calculation module 41.

[0040] When calculating the position of scale line 6, the following formula can be used: , where Gx = (-1)A[-1,-1]+0A[-1,0]+...+1A[1,1];

[0041] Gy=(-1)A[-1,-1]+(-2)A[0,-1]+...+1A[1,1];

[0042] Among them, A represents the original image, Gx and Gy represent the images of horizontal and vertical edge detection respectively, and G represents the final determined position of scale line 6. Through these calculations, the system can accurately identify the position of scale line 6 in the image.

[0043] also, Figure 3 and Figure 4 As shown, the walking mechanism 2 includes a support frame 21 and a driving wheel group 22. The driving wheel group 22 is arranged on the upper part of the support frame 21 and can slide on the track 1. The driving wheel group 22 includes a base 221, a driving wheel 222 and a driving motor 223. There are two groups of driving wheels 22, and the two groups of driving wheels 22 are arranged on the base 221 for rotation at intervals. The driving motor 223 is connected to the driving wheel 22 in a transmission manner. A support plate 11 is arranged at the lower part of the track 1, and the driving wheel 22 is mounted on the support plate 11. The driving motor 223 is used to drive the driving wheel 222 to move along the support plate 11. The support frame 21 is also provided with a power supply 8 and a charging module 9 to ensure the continuous operation of the system.

[0044] During the implementation process, the image acquisition device 3 is first driven by the walking mechanism 2 to move along the track 1 to shoot the scale lines 6 on each pile foundation 5. At the same time, the tidal data of the tidal sensor 7 is obtained. Next, the collected scale line 6 data and tidal data are preprocessed and stored in the database. Then, the tidal prediction model is trained using the historical tidal data, and the tidal compensation value is calculated based on the model and the real-time tidal data. Finally, the settlement monitoring is carried out in combination with the scale line 6 data and the tidal compensation value. If it is found that the actual scale line 6 position exceeds the preset safety threshold, an early warning is immediately issued.

[0045] Through the specific implementation methods described above, the present invention can achieve accurate detection of pile foundation settlement of large-scale floating photovoltaic power stations, timely obtain the specific settlement conditions of each pile foundation, and effectively eliminate the influence of tidal changes on the detection results.

Claims

1. A photovoltaic power station detection system, characterized in that: The invention comprises a track, a running mechanism, an image acquisition device, and a controller. The track is arranged along each pile foundation, the running mechanism is arranged on the track, the image acquisition device is arranged on the running mechanism, and the image acquisition device is used to acquire image information of scale lines located on the outer wall of each pile foundation. The controller is connected to the image acquisition device and is used to identify the position of the scale lines according to the image information, and judge whether the pile foundation has settled by comparing the position of the scale lines with the preset position. If the error between the detected position of the scale lines and the preset position exceeds a preset threshold, the corresponding pile foundation has settled.

2. The photovoltaic power station detection system according to claim 1, characterized in that: It also includes a tidal sensor, which is connected to the controller. The tidal sensor is used to collect tidal data of the water area where the photovoltaic power station is located and transmit the tidal data to the controller. The controller is used to correct the scale line position according to the tidal data.

3. The photovoltaic power station detection system according to claim 2, characterized in that: The controller includes a calculation module and a settlement judgment module. The calculation module is used to calculate the settlement according to the collected picture information according to the formula Calculate the scale line position, where Gx = (-1)A[-1,-1]+0A[-1,0]+1A[-1,1]+(-2)A[0,-1]+0A[0,0]+2A[0,1]+(-1)A[1,-1]+0A[1,0]+1*A[1,1]; Gy=(-1)A[-1,-1]+(-2)A[0,-1]+(-1)A[1,-1]+0A[-1,0]+ 0A[0,0]+0A[1,0]+1A[-1,1]+2A[0,1]+1*A[1,1]; A represents the original image, Gx represents the image detected by the horizontal edge, Gy represents the image detected by the vertical edge, and G represents the scale line position; The settlement judgment module is used to judge whether the error between the scale line position calculated by the calculation module and the preset position exceeds a preset threshold.

4. The photovoltaic power station detection system according to claim 3, characterized in that: The calculation module is also used to obtain a tidal compensation value based on the tidal data, and calculate the actual scale line position after tidal compensation based on the tidal compensation value. The settlement judgment module is used to judge whether the error between the actual scale line position after tidal compensation and the preset position exceeds a threshold.

5. The photovoltaic power station detection system according to claim 4, characterized in that: The walking mechanism includes a support frame and a driving wheel group, the driving wheel is arranged on the upper part of the support frame, the driving wheel group is slidably arranged on the track, and is used to move along the track, the driving wheel group includes a base, a driving wheel and a driving motor, the driving wheel is provided with two groups, the two groups of driving wheels are arranged on the base for rotation at intervals, the driving motor is connected to the driving wheel by transmission, a support plate is provided at the lower part of the track, the driving wheel frame is mounted on the support plate, and the driving motor is used to drive the driving wheel to move along the support plate.

6. The photovoltaic power station detection system according to claim 5, characterized in that: The support frame is provided with a power supply and a charging module, the power supply is connected to the image acquisition device and the controller, the charging module is connected to the power supply, and the charging module is used to connect to the energy storage module of the photovoltaic power station to supplement the power of the power supply.

7. The photovoltaic power station detection system according to claim 6, characterized in that: The track is arranged in a serpentine shape and is used to bypass the pile foundations of the photovoltaic power station in sequence.

8. A photovoltaic power station detection method, characterized in that: The following steps are included: 1) The image acquisition device is driven by the walking mechanism to move along the track, photograph the scale lines on the pile foundation, and obtain the tidal data of the tidal sensor; 2) Collecting and preprocessing the scale line data and tidal data, and storing the acquired scale line data and tidal data in a database after collecting and preprocessing them; 3) Establish a tidal compensation model, collect historical tidal data, analyze the laws and cycles of tidal changes, use the tidal prediction model and historical data to train a tidal prediction model, and calculate the tidal compensation value through the model based on the predicted tidal height and shooting time; 4) Conduct settlement monitoring, combine the acquired scale line data with the tidal compensation value, and obtain the actual scale line position after tidal compensation. If the actual scale line position exceeds the preset safety threshold, an early warning will be issued immediately.

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