Monitoring system for construction process of photovoltaic power station

Abstract

The invention provides a monitoring system for the construction process of a photovoltaic power station. The monitoring system comprises a laser ranging device, a positioning device, a server and a user terminal. The server is configured to obtain the distance information of each to-be-detected target in at least one to-be-detected target after the installation stage is completed at the end of each installation stage of the construction process, and determine the actual position information of the to-be-detected target relative to the laser ranging device based on the distance information and the angle information; based on the actual position information of the to-be-detected target and the design position information of the to-be-detected target, the position deviation is obtained, the design position information is pre-designed ideal position information of the to-be-detected target, and whether the position deviation is smaller than a preset threshold value or not is judged. Through cooperation of the laser ranging device and the server, each installation stage can be checked and accepted, and the checking and accepting result is sent to the user terminal, so that the installation efficiency is improved, the labor cost is reduced, and the subsequent installation quality is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of photovoltaic power generation, and in particular, to a monitoring system for a construction process of a photovoltaic power station. Background Art

[0002] The monitoring system of photovoltaic power station construction can not only observe the installation status of photovoltaic power station in real time, but also grasp the operation status of photovoltaic power station in real time and improve management efficiency. Among them, the monitoring of photovoltaic power station during construction can not only understand the construction progress of photovoltaic power station in real time and adjust the construction plan in time, but also monitor the safety status of the construction site in real time to prevent and reduce the occurrence of safety accidents.

[0003] In particular, the monitoring of the installation of photovoltaic panel components is particularly important, which is not only conducive to ensuring the accuracy of the installation position of the photovoltaic panels, but also conducive to ensuring the smooth construction and stable operation of the photovoltaic power station in the later stage. However, the acceptance of photovoltaic panel components is often carried out after all processes are completed, and operators are usually required to inspect them one by one at the construction site. In this way, not only the work efficiency is greatly reduced, but also the labor cost is increased. Summary of the invention

[0004] In view of this, the present disclosure provides a monitoring system for the construction process of a photovoltaic power station, aiming to partially solve the problems of low working efficiency and high labor costs during acceptance of traditional photovoltaic components and photovoltaic panels.

[0005] The present disclosure provides a monitoring system for the construction process of a photovoltaic power station, which includes: a laser ranging device, a positioning device, a server and a user terminal. The laser ranging device is arranged at a preset position of the photovoltaic power station so that the field of view of the laser ranging device covers the photovoltaic panel array of the photovoltaic power station, and is used to measure the distance information of the target to be detected on the object to be detected in the photovoltaic power station. The positioning device is used to obtain the actual position information of the laser ranging device, and the actual position information includes longitude, latitude and altitude. The server is connected to the laser ranging device. The user terminal is used to receive a reminder message issued by the server, wherein the construction process includes multiple installation stages, and each of the multiple installation stages has at least one target to be detected. The server is configured to: at the end of each installation stage of the construction process, obtain the distance information of each target to be detected in at least one target to be detected that has been completed in the installation stage, and determine the actual position information of the target to be detected relative to the laser ranging device based on the distance information and the angle information; based on the actual position information of the target to be detected and the design position information of the target to be detected, obtain the position deviation, the design position information is the pre-designed ideal position information of the target to be detected, judge whether the position deviation is less than a preset threshold, if the position deviation is less than the preset threshold, send a confirmation reminder to the user terminal to proceed to the next step of installation, if the position deviation is greater than or equal to the preset threshold, confirm that the installation is abnormal, and send an abnormal reminder to the user terminal so that the maintenance personnel can adjust the installation position of the object to be detected so that the position deviation is less than the threshold.

[0006] According to the monitoring system provided by the present disclosure, after each installation stage of the construction process, the position deviation can be inspected and accepted in real time, and a message reminder of installation confirmation or installation abnormality can be sent to the user terminal according to the inspection result to ensure that the installation of each installation stage meets expectations. Compared with the unified inspection after the installation of the traditional photovoltaic panel bracket assembly, the monitoring system of the present disclosure can inspect and accept each installation stage through the cooperation of the laser ranging device and the server, and send the results of the installation inspection to the user terminal, which is not only conducive to improving the installation efficiency and reducing labor costs, but also conducive to improving the installation quality of the entire photovoltaic power station.

[0007] In one embodiment of the present disclosure, the server is configured to: obtain the horizontal rotation angle and pitch angle of each target to be detected relative to the laser ranging device; based on the distance information, the horizontal rotation angle and the pitch angle, obtain the actual position information of each target to be detected relative to the laser ranging device.

[0008] In one embodiment of the present disclosure, the laser distance measuring device includes a laser for emitting a laser signal and receiving a laser signal reflected by a target to be detected, and the laser distance measuring device also includes an image sensor. The image sensor is arranged in parallel with the laser for acquiring an image of the target to be detected, and the server is configured to extract edge information of the image based on the image of the target to be detected; acquire contour information of the target to be detected based on the edge information; acquire distance information of the target to be detected based on the contour information and the contour; and acquire actual position information of the target to be detected.

[0009] In one embodiment of the present disclosure, the server is configured to, during the first installation phase of the construction process, obtain an image of the base; extract edge information of the base; obtain contour information of the base based on the edge information; obtain actual position information of the middle position of the base based on the contour information of the base and distance information of the middle position of the contour of the base; obtain a first position deviation based on the actual position information and the design position information of the middle position of the base; determine whether the first position deviation is less than a first threshold, and if the first position deviation is less than the first threshold, send a first installation phase confirmation reminder to the user terminal to perform column installation, and if the first position deviation is greater than or equal to the first threshold, confirm that the base is installed abnormally, and send a reminder of the abnormally installed base to the user terminal so that the first position deviation is less than the first threshold.

[0010] In one embodiment of the present disclosure, the server is further configured to: acquire an image of the column in the second installation phase of the construction process; extract edge information of the column; acquire contour information of the column based on the edge information; acquire the height of the top of the column based on the contour information and the distance information of the contour; acquire a second verticality based on the altitude and the actual height of the column, determine whether the second verticality is less than a second vertical threshold, if the second verticality is less than the second vertical threshold, continue to confirm the position information of the top of the column, if the second verticality is greater than or equal to the second vertical threshold, confirm that the column is installed abnormally, and send a reminder of the abnormally installed column to the user terminal so that the second verticality is less than the second vertical threshold.

[0011] In one embodiment of the present disclosure, the server is further configured to: obtain actual position information of the middle position of the top of the column based on the contour information of the column and the distance information of the contour of the column, obtain a second position deviation based on the actual position information and the design position information of the middle position of the top of the column, determine whether the second position deviation is less than a second threshold, if the second position deviation is less than the second threshold and the second verticality is less than the second vertical threshold, send a second installation phase confirmation reminder to the user terminal to perform bracket installation, if the second position deviation is greater than or equal to the second threshold, confirm that the column is installed abnormally, and send a reminder of the abnormally installed column to the user terminal so that the second position deviation is less than the second threshold.

[0012] In one embodiment of the present disclosure, the server is further configured to: in the third installation stage of the construction process, obtain an image of the bracket, extract edge information of the bracket, obtain contour information of the bracket based on the edge information, obtain actual position information of the intersection of the bracket based on the contour information and distance information of the contour, and obtain a third position deviation based on the actual position information and the design position information of the intersection of the bracket; determine whether the third position deviation is less than a third threshold value, if the third position deviation is less than the third threshold value, continue to confirm the angle information of the bracket, if the third position deviation is greater than or equal to the third threshold value, confirm that the intersection of the bracket is installed abnormally, and send a reminder of the abnormally installed bracket to the user terminal so that the third position deviation is less than the third threshold value.

[0013] In one embodiment of the present disclosure, the server is further configured to: obtain angle information of the intersection based on the contour information of the bracket and the distance information of the contour of the bracket; obtain a third angle deviation based on the angle information and the design angle information of the bracket; determine whether the third angle deviation is less than a third angle threshold, if the third angle deviation is less than the third angle threshold, and the third position deviation is less than the third threshold, send a third installation stage confirmation reminder to the user terminal to install the photovoltaic panels, if the third angle deviation is greater than or equal to the third angle threshold, confirm that the angle installation of the column is abnormal, and send a reminder of the abnormally installed bracket to the user terminal so that the third angle deviation is less than the third angle threshold.

[0014] In one embodiment of the present disclosure, the server is further configured to: in the fourth installation stage of the construction process, obtain an image of the photovoltaic panel and extract edge information of the photovoltaic panel; based on the edge information, obtain contour information of the photovoltaic panel; based on the contour information and the distance information of the contour, obtain actual position information of the middle position of the photovoltaic panel; based on the actual position information and the design position information of the middle position of the photovoltaic panel, obtain a fourth position deviation, determine whether the fourth position deviation is less than a fourth threshold, if the fourth position deviation is less than the fourth threshold, continue to confirm the angle information of the photovoltaic panel, if the fourth position deviation is greater than or equal to the fourth threshold, confirm that the photovoltaic panel is installed abnormally, and send a reminder of the abnormally installed photovoltaic panel to the user terminal so that the fourth position deviation is less than the fourth threshold.

[0015] In one embodiment of the present disclosure, the server is further configured to: obtain angle information of the middle position of the photovoltaic panel based on the contour information of the photovoltaic panel and the distance information of the contour of the photovoltaic panel, obtain a fourth angle deviation based on the angle information and the design angle information of the middle position of the photovoltaic panel, determine whether the fourth angle deviation is less than a fourth angle threshold, if the fourth angle deviation is less than the fourth angle threshold, send a fourth installation stage confirmation reminder to the user terminal, if the fourth angle deviation is greater than or equal to the fourth angle threshold, confirm that the angle of the photovoltaic panel is abnormal, and send a reminder of the abnormally installed photovoltaic panel to the user terminal, so as to remind the user of the user terminal to adjust the angle of the photovoltaic panel so that the fourth angle deviation is less than the fourth angle threshold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and should not be viewed as limiting the scope.

[0017] It should be understood that the same or similar reference numerals are used in the drawings to indicate the same or similar elements.

[0018] It should be understood that the drawings are merely schematic and that the sizes and proportions of elements in the drawings are not necessarily accurate.

[0019] Figure 1 A schematic diagram of the structure of a monitoring system for the construction process of a photovoltaic power station provided by an embodiment of the present disclosure.

[0020] Figure 2 A flow chart of a method for performing acceptance inspection on a server at the end of each installation stage during a construction process provided by an embodiment of the present disclosure.

[0021] Figure 3 A flow chart of a method for a server to obtain actual location information of a target to be detected provided in an embodiment of the present disclosure.

[0022] Figure 4 A flow chart of a method for a server to obtain a target to be detected provided in an embodiment of the present disclosure.

[0023] Figure 5 A flow chart of a method for a server to obtain actual location information of a target to be detected provided in an embodiment of the present disclosure.

[0024] Figure 6 A flow chart of a method for a server to obtain actual location information of a target to be detected provided in an embodiment of the present disclosure.

[0025] Figure 7 A schematic diagram of the structure of a server provided in an embodiment of the present disclosure at the end of the first installation phase of the construction process.

[0026] Figure 8A schematic diagram of the structure of a server provided in an embodiment of the present disclosure at the end of the second installation phase of the construction process.

[0027] Fig. 9 A schematic diagram of the structure of a server provided in an embodiment of the present disclosure at the end of the third installation phase of the construction process.

[0028] Fig.10 A schematic diagram of the structure of a server provided in an embodiment of the present disclosure at the end of the fourth installation stage of the construction process DETAILED DESCRIPTION

[0029] refer to Figure 1 The embodiment of the present disclosure provides a monitoring system 100 for the construction process of a photovoltaic power station, which includes a laser distance measuring device 10, a positioning device 20, a server 30 and a user terminal 40. The laser distance measuring device 10 is set at a preset position of the photovoltaic power station, and is used to measure the distance information and image information of the target to be detected in the photovoltaic power station. While the laser distance measuring device uses a laser to measure the distance information, it obtains the angle and pitch angle of its rotation in the horizontal direction to obtain the position information of the target to be detected relative to the laser distance measuring device, and can also use an image sensor to capture the image of the target to be detected.

[0030] The preset position only needs to ensure that the field of view of the laser distance measuring device 10 can cover the photovoltaic panel array 50 of the photovoltaic power station, so that the construction process of the photovoltaic power station can be monitored in real time. For example, the preset position can be far away from the photovoltaic panel array 50 and higher than all photovoltaic panel arrays 50. By adjusting the rotation angle of the laser distance measuring device 10, the distance information of the target to be detected in the entire photovoltaic power station or a part of the photovoltaic power station can be obtained.

[0031] The photovoltaic panel array 50 may include photovoltaic panel assemblies 60 in multiple rows and columns, for example, a 4*6 array or a 20*50 array, which is not specifically limited here. Each photovoltaic panel assembly 60 may include multiple bases, multiple columns, multiple brackets and multiple photovoltaic panels, each base is correspondingly installed with a column, each column is correspondingly installed with a bracket, and multiple photovoltaic panels are spliced ​​and installed together on multiple brackets at corresponding positions to form a photovoltaic panel assembly. For example, each group of photovoltaic panel assemblies may include 3 bases, 3 columns, 3 brackets and multiple photovoltaic panels. Of course, each group of photovoltaic panel assemblies may also include 4 bases, 5 bases, etc.

[0032] The target to be detected can be any position on the object to be detected (for example, any component in the photovoltaic panel assembly). For example, the target to be detected can be the four corners or the middle position of the base, the middle position of the top of the column, the position of the support rod of the bracket, or the splicing position of multiple photovoltaic panels. By taking the position information of the target to be detected as the key point of the object to be detected, the position information of the target to be detected is obtained to obtain the position information of the object to be detected (for example, any component in the photovoltaic panel assembly), providing data support for whether the subsequent installation position meets expectations.

[0033] The positioning device 20 is used to obtain the actual position information of the laser ranging device 10, thereby providing data support for obtaining the actual position of any photovoltaic panel assembly. The actual position information may include longitude, latitude and altitude. For example, the positioning device may include a GPS for obtaining longitude and latitude information, and may also include an altimeter for obtaining the altitude of the laser ranging device 10.

[0034] The server 30 is connected to the laser ranging device 10, and based on the actual position information of the laser ranging device 10 and the angle information and distance information of the target to be detected relative to the laser ranging device, the actual position information (e.g., coordinate information) of the target to be detected relative to the laser ranging device is calculated. The actual position information of the target to be detected is compared with the ideal position information of the target to be detected in the design model of the photovoltaic panel assembly to determine whether it meets the installation expectations. The user terminal is used to receive reminder messages sent by the server, such as confirmation messages, abnormal reminders, etc.

[0035] The user terminal 40 is used to receive a reminder message sent by the server, wherein the construction process includes multiple installation stages, each of the multiple installation stages has at least one target to be detected. By confirming that the target to be detected in each installation stage is installed in place, the installation of the target to be detected in the corresponding installation stage is confirmed to be in place.

[0036] refer to Figure 2 , the server 30 is configured to execute the following method.

[0037] S10, at the end of each installation stage of the construction process, obtain the distance information and angle information of each target to be detected among at least one target to be detected completed in the installation stage relative to the laser ranging device, and determine the actual position information of the target to be detected relative to the laser ranging device based on the distance information and the angle information.

[0038] Specifically, after any object to be detected 60 is installed, any position on the object to be detected 60 (i.e., the component to be detected) can be used as the target to be detected 61, and the target to be detected 61 is used as the key point of the object to be detected. The distance information and actual position information of the target to be detected represent the distance information or installation position information of the object to be detected. By judging whether the key point meets expectations, it is judged whether the installation of the object to be detected meets expectations. Preferably, the target to be detected can be selected from the middle position or edge position of the top or bottom of the object to be detected.

[0039] It should be noted that the actual position information mainly refers to the position information of the target to be detected on the object to be detected relative to the actual installation of the laser ranging device, generally including the horizontal rotation angle relative to the laser ranging device, the pitch angle in the vertical direction, the horizontal distance and the vertical distance. Through the horizontal rotation angle, pitch angle and distance information of the laser ranging device, the actual position information (such as coordinate information) of the target to be detected relative to the laser ranging device based on the laser ranging device can be calculated.

[0040] S20, obtaining a position deviation based on the position information of the target to be detected relative to the laser ranging device and the designed position information of the target to be detected, where the designed position information is the pre-designed ideal position information of the target to be detected.

[0041] Specifically, in the early stage of the installation of the photovoltaic power station, the theoretical design position information of the photovoltaic power station and the monitoring system is obtained, that is, the ideal position information (for example, including longitude and latitude and altitude) of the photovoltaic panel components installed according to the design requirements. The ideal position information may also include the optimal position relationship of each component in each photovoltaic panel component relative to the laser ranging device, including the horizontal rotation angle, vertical pitch angle and height, etc. For example, the horizontal rotation angle, pitch angle, horizontal distance, vertical distance and relative height of the base, column, bracket or photovoltaic panel relative to the laser ranging device.

[0042] Specifically, since the ideal position information includes the optimal position relationship of each component relative to the laser ranging device, based on the relative position relationship, a coordinate system with the laser ranging device as the coordinate origin (0,0,0) can be established. Different photovoltaic panel components have corresponding ideal position information (such as coordinate information) relative to the laser ranging device. The ideal position information relative to the laser ranging device is defined as the ideal position information of the photovoltaic panel component.

[0043] The distance information of the target to be detected on the object to be detected in the actually installed photovoltaic panel assembly measured by a laser ranging device, the horizontal rotation angle and the pitch angle are calculated to obtain the position information (such as coordinate information) of the actually installed photovoltaic panel assembly relative to the coordinate origin. The position information relative to the coordinate origin is defined as the actual position information of the photovoltaic panel assembly.

[0044] Based on the ideal position information of the photovoltaic panel assembly and the acquired actual position information of the corresponding photovoltaic panel assembly, an actual position deviation is acquired, that is, the ideal and actual position deviation.

[0045] S30, determining whether the position deviation is less than a preset threshold, if yes, executing S40, if no, executing S50.

[0046] S40: If the position deviation is less than a preset threshold, a confirmation reminder is sent to the user terminal to proceed to the next step of installation.

[0047] S50, if the position deviation is greater than or equal to the preset threshold, confirm that the installation is abnormal, and send an abnormal reminder to the user terminal to make the position deviation less than the threshold,

[0048] Specifically, based on the difference between the position deviation and the expected threshold, it is determined whether the installation of the object to be detected meets expectations. If the installation meets expectations (i.e., the position deviation is less than the threshold), the user is reminded to proceed to the next step of installation. If the installation does not meet expectations (i.e., the position deviation is greater than or equal to the threshold), the user is reminded to perform installation abnormalities and adjust the installation so that each installation stage meets expectations.

[0049] In the present disclosure, Figure 1 and Figure 3 The laser distance measuring device combined with the positioning device can obtain the actual position information of the laser distance measuring device, and obtain the actual position information of the installation component to be detected based on the distance information of any installation component measured by the laser distance measurement, so as to provide accurate data support for whether the subsequent installation position meets expectations. The server obtains the position deviation based on the actual position information of the installation component to be detected and the ideal position information of the installation component to be detected, and determines whether the installation meets expectations based on whether the position deviation is less than the first threshold.

[0050] According to the monitoring system provided by the present disclosure, after the completion of each installation stage of the construction process, the position deviation can be inspected and accepted in real time, and a message reminder of installation confirmation or installation abnormality can be sent to the user terminal according to the inspection result, so as to ensure that the installation of each installation stage meets expectations. Compared with the traditional unified inspection after the installation of photovoltaic panel components, the monitoring system of the present disclosure can inspect and accept after each installation stage is completed through the cooperation of the laser ranging device and the server, and send the results of the installation inspection to the user terminal, which is not only conducive to improving the installation efficiency and reducing the labor cost, but also conducive to improving the installation quality of the entire photovoltaic power station.

[0051] refer to Figure 3 ,In order to obtain the actual location information of the target to be detected, the server is ,configured to perform the following processing.

[0052] S11, obtaining the horizontal rotation angle and pitch angle of each target to be detected relative to the laser ranging device.

[0053] Specifically, after determining the target to be detected, the laser distance measuring device is used to obtain the distance information of the target to be detected and the horizontal rotation angle and the pitch angle relative to the laser distance measuring device to obtain the actual position information (such as coordinate information) of the target to be detected. The angle information may include the horizontal rotation angle and the vertical pitch angle relative to the laser distance measuring device, so as to obtain the actual position information relative to the laser distance measuring device.

[0054] S12, based on the distance information, the horizontal rotation angle and the pitch angle, the actual position information of each target to be detected relative to the laser ranging device is obtained.

[0055] In one example, reference Figure 5 and Figure 6 , the distance between the laser ranging device 10 and the target to be detected 60 is L, the horizontal rotation angle of the laser ranging device during measurement is α, the pitch angle is β, the coordinates of the laser ranging device are (0,0,0), then the actual coordinates of the target to be detected are: (Lsinα, Lcosα, Lsinβ).

[0056] The position deviation is obtained by comparing the actual position information of the target to be detected with the ideal position information of the target to be detected mentioned above.

[0057] Furthermore, the laser distance measuring device may include a laser for emitting a laser signal and receiving a laser signal reflected by the target to be detected, so as to accurately obtain the distance information of the target to be detected relative to the laser distance measuring device. The laser distance measuring device may also include an image sensor. The image sensor may be arranged in parallel with the laser to obtain an image of the target to be detected.

[0058] refer to Figure 4 , and then after acquiring the image of the object to be detected, the server is further configured to execute the following method.

[0059] S1, based on the image of the object to be detected, extract the edge information of the image.

[0060] Specifically, at the end of each installation stage of the construction process, the image sensor can acquire an image of the installed component and extract edge information through an edge detection algorithm, such as Sobel operator, Canny edge detection, etc.

[0061] S2, based on the edge information, obtain the contour information of the object to be detected.

[0062] Specifically, based on the acquired edge information, first, the contour is found. The contour in the image is found by a function, for example, by using the findContours function in the OpenCV library. Then, the contour is extracted. For example, the noise is removed by function contour approximation.

[0063] S3, based on the contour information and the distance information of the target to be detected on the contour, obtaining the actual position information of the target to be detected relative to the laser distance measuring device.

[0064] Specifically, a target to be detected is selected. For example, the middle point of the top of the mounting assembly to be detected is selected. Based on the correlation function, the coordinates of the center point in the contour are obtained, and the distance between the center point coordinates and the laser ranging device is obtained through the laser ranging device. Based on the obtained distance, as well as the horizontal rotation angle and pitch angle of the laser ranging device, the actual position information of the target to be detected is calculated.

[0065] For ease of understanding, the monitoring system provided by the embodiment of the present disclosure is exemplified below in conjunction with specific embodiments and their accompanying drawings. It should be understood that the present disclosure can be implemented in a variety of ways and should not be construed as being limited to the embodiments described herein, which are only provided for a more thorough and clear understanding of the present disclosure.

[0066] The following takes the simultaneous installation of three photovoltaic panel assemblies as an example, and takes the base, column, bracket and photovoltaic panel in the photovoltaic panel assembly as examples to specifically explain the working method of the monitoring system.

[0067] Schematic first installation stage

[0068] refer to Figure 7 , the server is configured to: obtain an image of the base 65; extract edge information of the base 65; based on the edge information, obtain contour information of the base; based on the contour information of the base and the distance information of the middle position M1 of the contour of the base, obtain actual position information (such as coordinate information) of the middle position M1 of the base; based on the actual position information and the design position information of the middle position M1 of the base, obtain a first position deviation; determine whether the first position deviation is less than a first threshold value, if the first position deviation is less than the first threshold value, send a first installation stage confirmation reminder to the user terminal to perform column installation, if the first position deviation is greater than or equal to the first threshold value, confirm that the base is installed abnormally, and send a reminder of the abnormally installed base to the user terminal so that the first position deviation is less than the first threshold value.

[0069] It should be noted that, since the column is installed at the middle position of the top of the base 65, for the accuracy of the subsequent installation position of the column, when accepting the first installation stage, the target to be detected is the middle position M1 of the top of the base 65 as the key point of acceptance (i.e., the target to be detected), and the installation of the base is confirmed to be in place by confirming that the middle position of the top of the base meets the expected design. If the deviation between the coordinates of the middle position and the first position of the design position information is less than the first threshold, the user terminal receives a confirmation reminder, and if the deviation between the coordinates of the middle position and the first position of the design position information is greater than or equal to the first threshold, the user terminal receives an installation abnormality reminder, and adjusts the installation position of the base according to the deviation of the coordinate information, so that the deviation between the coordinate information of the middle position of the base and the first position of the design position information is less than the first threshold. Of course, other positions of the base can also be selected for acceptance, such as the positions of the four corners of the base.

[0070] Schematic second installation stage

[0071] When accepting the column, the target to be detected is the middle position of the top of the column, and the verticality and coordinate information of the column need to be confirmed respectively. It can be understood that since the bracket is fixedly installed on the column, in order to ensure the accuracy of the subsequent installation position of the bracket, the verticality and position of the column are selected as the key points of acceptance during the second installation stage.

[0072] When checking the verticality of column 66, refer to Figure 8 , the server is configured to: obtain an image of the column 66; extract edge information of the column 66; based on the edge information, obtain contour information of the column; based on the contour information and distance information of the contour, obtain the height of the top of the column 66; based on the height and the actual height of the column 66, obtain the second verticality, determine whether the second verticality is less than the second vertical threshold, if the second verticality is less than the second vertical threshold, continue to confirm the position information of the top of the column, if the second verticality is greater than or equal to the second vertical threshold, confirm that the column is installed abnormally, and send a reminder of the abnormally installed column to the user terminal so that the second verticality is less than the second vertical threshold.

[0073] In the acceptance of the verticality of the column 66, the second verticality of the column is calculated by obtaining the height coordinate (Lsinβ) of the middle position M2 of the top of the column. If the second verticality is less than the second vertical threshold, other coordinate information of the column is continued to be accepted. If the second verticality is greater than or equal to the second vertical threshold, the user terminal receives an abnormal installation reminder of the verticality of the column, and adjusts the installation of the column according to the second verticality.

[0074] It can be understood that the verticality can be obtained by calculating the ratio of the difference between the height coordinate of the column and the height coordinate of the base to the actual height H of the column. The larger the ratio, the higher the verticality, and the lower the ratio, the lower the verticality. For example, the second vertical threshold can be set to 0.95 or 0.9. In addition, the height coordinate of the column can be selected as the coordinate of the middle position of the top of the column, and the height coordinate of the bottom of the column is the height coordinate of the middle position of the top of the base, so as to calculate the height of the column.

[0075] When accepting the coordinate information of the column, continue to refer to Figure 8 The server is configured to: obtain the actual position information (e.g., coordinate information) of the middle position M2 of the top of the column based on the contour information of the column and the distance information of the contour of the column; obtain the second position deviation based on the actual position information and the design position information of the middle position M2 of the top of the column, and determine whether the second position deviation is less than a second threshold value. If the second position deviation is less than the second threshold value and the second verticality is less than the second vertical threshold value, send a second installation phase confirmation reminder to the user terminal to perform bracket installation. If the second position deviation is greater than or equal to the second threshold value, confirm that the column is installed abnormally, and send a reminder of the abnormally installed column to the user terminal so that the second position deviation is less than the second threshold value.

[0076] It should be noted that when accepting the position information of the column, only the two coordinate information except the height need to be judged. In this way, when the second position deviation is greater than the second threshold, the height deviation can be ignored, which is conducive to the positioning of installation anomalies, thereby improving the work efficiency of acceptance. Of course, all the coordinate information of the column can also be obtained at the same time to judge the position information.

[0077] Schematic third installation stage

[0078] When the bracket is accepted, the target to be detected is the intersection of the bracket 67, and the position information of the intersection X and the angle A of the bracket need to be confirmed respectively. It can be understood that since the photovoltaic panel is fixedly installed on the bracket, in order to ensure the accuracy of the subsequent installation position of the photovoltaic panel, when accepting the third installation stage, the position and angle of the intersection of the bracket are selected as the key points of acceptance.

[0079] When checking the position information of bracket 67, refer to Fig. 9, the server is configured to: obtain an image of the bracket 67 and extract edge information of the bracket 67; based on the edge information, obtain contour information of the bracket; based on the contour information and distance information of the contour, obtain actual position information of the intersection X of the bracket; based on the actual position information and the design position information of the intersection X of the bracket, obtain a third position deviation; determine whether the third position deviation is less than a third threshold value, if the third position deviation is less than the third threshold value, continue to confirm the angle information of the bracket, if the third position deviation is greater than or equal to the third threshold value, confirm that the intersection X of the bracket is installed abnormally, and send a reminder of the abnormally installed bracket to the user terminal, so that the third position deviation is less than the third threshold value.

[0080] When checking the angle information of bracket 67, continue to refer to Fig. 9 , the server is configured to: obtain angle information A of the intersection X based on the profile information of the bracket and the distance information of the profile of the bracket; obtain a third angle deviation based on the angle information and the design angle information of the bracket; determine whether the third angle deviation is less than a third angle threshold, if the third angle deviation is less than the third angle threshold, and the third position deviation is less than the third threshold, send a third installation stage confirmation reminder to the user terminal to install the photovoltaic panel, if the third angle deviation is greater than or equal to the third angle threshold, confirm that the angle installation of the bracket is abnormal, and send a reminder of the abnormally installed bracket to the user terminal so that the third angle deviation is less than the third angle threshold.

[0081] It should be noted that the bracket generally includes a part connected to the column and a part for installing and fixing the photovoltaic panel. Among them, the part for installing and fixing the photovoltaic panel usually includes a plurality of crossbeams that intersect each other. The target position to be detected selected here is the intersection X of the multiple beams in the bracket. By inspecting the position and angle of the intersection, it is judged whether the installation position of the bracket is in place. This is conducive to improving the accuracy of the subsequent installation position of the photovoltaic panel. In addition, the angle information of the bracket can refer to the initial angle between the part of the bracket connected to the column and the column, and can also refer to the angle between the part of the bracket that is installed and fixed to the photovoltaic panel and the standard horizontal plane. No specific limitation is made here.

[0082] Schematic fourth installation stage

[0083] When accepting the photovoltaic panel, the target to be inspected is the middle position M3 of the small photovoltaic panel 68, and the position information and angle information of the small photovoltaic panel 68 need to be confirmed respectively. It can be understood that since the installation position and angle of the photovoltaic panel directly determine the amount of solar energy absorbed, the position and angle of the photovoltaic panel are selected as the key points of acceptance during the fourth installation stage.

[0084] When checking the location information of the photovoltaic panel 68, refer to Fig.10The server is configured to: obtain an image of the photovoltaic panel 68 and extract edge information of the photovoltaic panel 68; obtain contour information of the photovoltaic panel 68 based on the edge information; obtain actual position information of the middle position M3 of the photovoltaic panel 68 based on the contour information and the distance information of the contour; obtain a fourth position deviation based on the actual position information and the design position information of the middle position M3 of the photovoltaic panel; determine whether the fourth position deviation is less than a fourth threshold value, if the fourth position deviation is less than the fourth threshold value, continue to confirm the angle information of the photovoltaic panel, if the fourth position deviation is greater than or equal to the fourth threshold value, confirm that the photovoltaic panel is installed abnormally, and send a reminder of the abnormally installed photovoltaic panel to the user terminal so that the fourth position deviation is less than the fourth threshold value.

[0085] It should be noted that each photovoltaic panel can be composed of multiple small-sized photovoltaic panels. Therefore, the position information of each small-sized photovoltaic panel (hereinafter referred to as small photovoltaic panel) can be inspected separately, or multiple small photovoltaic panels at the edge can be selected for inspection. In addition, after the splicing is completed, inspecting the position of each small photovoltaic panel is conducive to ensuring the splicing quality of the small photovoltaic panels. Of course, the splicing quality of the small photovoltaic panels can also be judged by inspecting the position information of the splicing.

[0086] When accepting the angle information of photovoltaic panels, refer to Fig.10 The server is also configured to: obtain angle information of the middle position M3 of the photovoltaic panel based on the contour information of the photovoltaic panel and the distance information of the contour of the photovoltaic panel; obtain a fourth angle deviation based on the angle information and the design angle information of the middle position M3 of the photovoltaic panel; determine whether the fourth angle deviation is less than a fourth angle threshold, if the fourth angle deviation is less than the fourth angle threshold, continue to confirm the angle information of the photovoltaic panel, and the fourth angle deviation is less than the fourth angle threshold, send a fourth installation stage confirmation reminder to the user terminal, if the fourth angle deviation is greater than or equal to the fourth angle threshold, confirm that the angle of the photovoltaic panel is abnormal, and send a reminder of the abnormal installation of the photovoltaic panel to the user terminal, so as to remind the user of the user terminal to adjust the angle of the photovoltaic panel so that the fourth angle deviation is less than the fourth angle threshold.

[0087] It is understandable that after the position of the photovoltaic panel is confirmed, it is necessary to determine whether the angle of the photovoltaic panel meets expectations, similar to the method of confirming the position of the small photovoltaic panel. By determining whether the angle of each small photovoltaic panel meets the installation expectations, it is possible to confirm that the entire photovoltaic panel is installed in place, thereby ensuring that the photovoltaic panel can face the sun at the best angle to improve energy utilization.

[0088] According to the monitoring system provided by the present disclosure, in the first installation stage, it is confirmed that the deviation between the actual position information of the base and the designed position information of the base is less than the first threshold; in the second installation stage, it is respectively confirmed that the verticality of the column is less than the second vertical threshold, and the deviation between the position information of the column and the designed position information of the column is less than the second threshold; in the third installation stage, it is respectively confirmed that the deviation between the position information of the bracket and the designed position information is less than the third threshold, and the angle information of the bracket and the designed angle information is less than the third angle threshold; in the fourth installation stage, it is respectively confirmed that the deviation between the position information of the photovoltaic panel and the designed position information is less than the fourth threshold, and the angle information of the photovoltaic panel and the designed angle information is less than the fourth angle threshold. In this way, by confirming each installation ring, the installation effect of the entire photovoltaic panel assembly meets expectations, which is conducive to improving installation efficiency and installation quality, and providing guarantees for the smooth construction of subsequent photovoltaic power stations.

[0089] According to an embodiment of the present disclosure, the server includes a processor and a memory. The memory is used to store instructions executable by the processor, such as an application program. The processor is configured to execute the instructions to perform the above method.

[0090] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the above-mentioned processor, enables the above-mentioned server to execute the above-mentioned method.

[0091] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0092] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0093] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0094] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0095] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0096] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program check codes.

[0097] It should be noted that, in the description of this application, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0098] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A monitoring system for the construction process of a photovoltaic power station, characterized in that: include: A laser distance measuring device is arranged at a preset position of the photovoltaic power station so that the field of view of the laser distance measuring device covers the photovoltaic panel array of the photovoltaic power station, and is used to measure the distance information of the target to be detected on the object to be detected in the photovoltaic power station; A positioning device, used to obtain actual position information of the laser ranging device, wherein the actual position information includes longitude, latitude and altitude; A server connected to the laser distance measuring device; A user terminal is used to receive a reminder message sent by the server, wherein the construction process includes multiple installation stages, and each of the multiple installation stages has at least one target to be detected; Wherein, the server is configured as: At the end of each installation stage of the construction process, obtaining distance information and angle information of each target to be detected in the at least one target to be detected completed in the installation stage relative to the laser ranging device, and determining actual position information of the target to be detected relative to the laser ranging device based on the distance information and the angle information; Acquire a position deviation based on the position information of the target to be detected relative to the laser ranging device and the designed position information of the target to be detected, wherein the designed position information is the pre-designed ideal position information of the target to be detected; Determine whether the position deviation is less than a preset threshold, If the position deviation is less than a preset threshold, a confirmation reminder is sent to the user terminal to proceed to the next step of installation. If the position deviation is greater than or equal to the preset threshold, it is confirmed that the installation is abnormal, and an abnormal reminder is sent to the user terminal so that maintenance personnel can adjust the installation position of the object to be detected so that the position deviation is less than the preset threshold.

2. The monitoring system according to claim 1, wherein the server is configured as follows: Obtaining the horizontal rotation angle and the pitch angle of each target to be detected relative to the laser ranging device; Based on the distance information, the horizontal rotation angle and the pitch angle, the actual position information of each target to be detected relative to the laser ranging device is obtained.

3. The monitoring system according to claim 1, wherein the laser distance measuring device comprises a laser for emitting a laser signal and receiving a laser signal reflected by the target to be detected, and the laser distance measuring device further comprises: An image sensor is arranged in parallel with the laser and is used to obtain an image of the object to be detected. The server is also configured to extract edge information of the image based on the image of the object to be detected; obtain contour information of the object to be detected based on the edge information; and obtain actual position information of the object to be detected relative to the laser ranging device based on the contour information and the distance information of the object to be detected on the contour.

4. The monitoring system according to claim 1, wherein the server is configured to obtain an image of the base during the first installation phase of the construction process; extract edge information of the base; and obtain contour information of the base based on the edge information; Based on the contour information of the base and the distance information of the middle position of the contour of the base, acquiring the actual position information of the middle position of the base; Based on the actual position information and the design position information of the middle position of the base, a first position deviation is obtained; it is determined whether the first position deviation is less than a first threshold value; if the first position deviation is less than the first threshold value, a first installation phase confirmation reminder is sent to the user terminal to perform column installation; if the first position deviation is greater than or equal to the first threshold value, it is confirmed that the base is installed abnormally, and a reminder of the abnormally installed base is sent to the user terminal to make the first position deviation less than the first threshold value.

5. According to the monitoring system of claim 1, the server is configured to: in the second installation stage of the construction process, obtain an image of the column; extract edge information of the column; based on the edge information, obtain contour information of the column; based on the contour information and distance information of the contour, obtain the height of the top of the column; based on the height and the actual height of the column, obtain a second verticality, determine whether the second verticality is less than a second vertical threshold, if the second verticality is less than the second vertical threshold, continue to confirm the position information of the top of the column, if the second verticality is greater than or equal to the second vertical threshold, confirm that the column is installed abnormally, and send a reminder of the abnormally installed column to the user terminal so that the second verticality is less than the second vertical threshold.

6. According to the monitoring system of claim 5, the server is further configured to: based on the contour information of the column and the distance information of the contour of the column; obtain the actual position information of the middle position of the top of the column; based on the actual position information and the design position information of the middle position of the top of the column, obtain a second position deviation, and determine whether the second position deviation is less than a second threshold value; if the second position deviation is less than the second threshold value, and the second verticality is less than the second vertical threshold value, send a second installation stage confirmation reminder to the user terminal to perform bracket installation; if the second position deviation is greater than or equal to the second threshold value, confirm that the column is installed abnormally, and send a reminder of the abnormally installed column to the user terminal so that the second position deviation is less than the second threshold value.

7. The monitoring system according to claim 1, wherein the server is configured to: in the third installation stage of the construction process, obtain an image of the bracket and extract edge information of the bracket; Based on the edge information, acquiring contour information of the bracket; Based on the contour information and the distance information of the contour, acquiring actual position information of the intersection of the bracket, and based on the actual position information and the designed position information of the intersection of the bracket, acquiring a third position deviation; determining whether the third position deviation is less than a third threshold, If the third position deviation is less than the third threshold, continue to confirm the angle information of the bracket, If the third position deviation is greater than or equal to the third threshold, it is confirmed that the intersection of the bracket is installed abnormally, and a reminder of the abnormally installed bracket is sent to the user terminal so that the third position deviation is less than the third threshold.

8. The monitoring system according to claim 7, wherein the server is further configured to: Based on the profile information of the bracket and the distance information of the profile of the bracket, acquiring the angle information of the intersection; Based on the angle information and the design angle information of the bracket, obtaining a third angle deviation; determining whether the third angle deviation is less than a third angle threshold, If the third angle deviation is less than the third angle threshold, and the third position deviation is less than the third threshold, a third installation phase confirmation reminder is sent to the user terminal to perform photovoltaic panel installation, If the third angle deviation is greater than or equal to the third angle threshold, it is confirmed that the angle installation of the bracket is abnormal, and a reminder of the abnormally installed bracket is sent to the user terminal so that the third angle deviation is less than the third angle threshold.

9. The monitoring system according to claim 1, wherein the server is configured to: in a fourth installation phase of the construction process, Acquire an image of a photovoltaic panel and extract edge information of the photovoltaic panel; Based on the edge information, obtaining contour information of the photovoltaic panel; Based on the contour information and the distance information of the contour, acquiring actual position information of the middle position of the photovoltaic panel; Based on the actual position information and the designed position information of the middle position of the photovoltaic panel, a fourth position deviation is obtained, determining whether the fourth position deviation is less than a fourth threshold, If the fourth position deviation is less than the fourth threshold, continue to confirm the angle information of the photovoltaic panel, If the fourth position deviation is greater than or equal to the fourth threshold, it is confirmed that the photovoltaic panel is installed abnormally, and a reminder of the abnormally installed photovoltaic panel is sent to the user terminal so that the fourth position deviation is less than the fourth threshold.

10. The monitoring system according to claim 9, wherein the server is further configured to: Based on the contour information of the photovoltaic panel and the distance information of the contour of the photovoltaic panel, acquiring the angle information of the middle position of the photovoltaic panel; Based on the angle information and the design angle information of the middle position of the photovoltaic panel, obtaining a fourth angle deviation; determining whether the fourth angle deviation is less than a fourth angle threshold, If the fourth angle deviation is less than the fourth angle threshold, a fourth installation stage confirmation reminder is sent to the user terminal; if the fourth angle deviation is greater than or equal to the fourth angle threshold, it is confirmed that the angle of the photovoltaic panel is abnormal, and a reminder of the abnormally installed photovoltaic panel is sent to the user terminal to remind the user of the user terminal to adjust the angle of the photovoltaic panel so that the fourth angle deviation is less than the fourth angle threshold.

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