Photovoltaic panel fault detection device and detection method

Abstract

The invention discloses a photovoltaic panel fault detection device, and the device can autonomously control the EL detector and the infrared thermal imager to carry out the hidden crack and hot spot fault detection of a photovoltaic panel through the photovoltaic module fault detection system through the arrangement of the EL detector, the infrared thermal imager and the photovoltaic module fault detection system. Therefore, the detection personnel do not need to frequently go to the site for detection work, the fault detection work can be ensured, and the detection efficiency can be improved. Through the arrangement of a first moving mechanism and a second moving mechanism in the detection moving mechanism, the photovoltaic module fault detection system can control the first moving mechanism and the second moving mechanism to drive an EL detector and an infrared thermal imager to longitudinally and transversely move along the surface of a photovoltaic panel. The EL detector and the infrared thermal imager can carry out comprehensive subfissure and hot spot detection work on the surface of the photovoltaic panel, and the comprehensiveness of the detection work is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic panel fault detection, and specifically to a photovoltaic panel fault detection device and detection method. Background Art

[0002] Solar photovoltaic power generation technology is widely used because of its clean and renewable characteristics. However, due to the limitations of its working principle and installation environment, photovoltaic power generation components face many problems in actual use, especially under the conditions of sunlight and complex environmental conditions. The cells of photovoltaic modules may be partially blocked, resulting in failure to work properly. This blocking phenomenon will cause uneven temperature on the surface of the module. The temperature of the unblocked part is low, while the temperature of the blocked part rises significantly, forming a significant temperature difference. This temperature difference is prone to cause hot spot effect. The cells in the high temperature area may burn out due to overheating, forming dark spots, which seriously affect the performance and life of the module. In addition, these dark spots and hot spot effects are often difficult to identify through manual detection, which increases the difficulty of maintenance and management. Photovoltaic modules are usually installed in the wild environment. Due to the influence of wind, sun and installation construction, the cells are prone to small cracks. These cracks may not be obvious in the early stage, but they will accelerate the attenuation of the cell power and significantly affect the normal service life of the module. The cracks may also expand when subjected to mechanical loads, further causing open circuit damage and exacerbating the hot spot effect. Since photovoltaic modules are usually installed in remote locations, manual detection of these faults is time-consuming and difficult, making it difficult to achieve timely maintenance, resulting in further degradation of module performance. The fault detection devices currently on the market have certain limitations. When using these devices for fault detection, it is usually difficult to avoid the above problems at the same time, and existing detection methods often require staff to arrive at the installation site for operation, and remote, online real-time monitoring cannot be achieved. This method is not only inefficient, but also difficult to meet the detection needs of photovoltaic modules in complex field environments. Therefore, in response to the failures of hidden cracks and hot spots in photovoltaic power generation modules, there is an urgent need for a device and method that can achieve online detection, so as to monitor and warn in real time, improve the safety and service life of the modules, reduce maintenance costs, and improve the overall operating efficiency of the system. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a photovoltaic panel fault detection device to solve the problems raised in the above background technology.

[0004] According to one aspect of the present application, a photovoltaic panel fault detection device includes a photovoltaic component, a detection moving mechanism, a detection component and a controller, wherein the photovoltaic component includes a photovoltaic panel, an oblique support frame and a counterweight base, the bottom of the oblique support frame is fixed to the counterweight base, the counterweight base is fixedly installed on the photovoltaic installation ground, the photovoltaic panel is fixedly installed on the upper surface of the oblique support frame, the detection moving mechanism is fixedly installed on both sides of the oblique support frame, the detection component is installed on the detection moving mechanism, the detection component is electrically connected to the controller, and the controller is installed on one side of the photovoltaic component; the detection moving mechanism includes a first moving mechanism and a second moving mechanism, the first moving mechanism is fixedly installed on both sides of the oblique support frame, the second moving mechanism is installed on the first moving mechanism, the detection component is installed on the second moving mechanism, the first moving mechanism is used to drive the detection component to move along the longitudinal direction of the photovoltaic panel, and the second moving mechanism is used to drive the detection component to move along the longitudinal direction of the photovoltaic panel The photovoltaic panel moves in the lateral direction; the detection component includes the EL detector and the infrared thermal imager, the EL detector and the infrared thermal imager are electrically connected to the controller, and a photovoltaic component fault detection system is arranged in the controller; the photovoltaic component fault detection system includes a central control module, the central control module is bidirectionally electrically connected to the EL detector and the infrared thermal imager respectively, the central control module is bidirectionally electrically connected to the timing module, the timing module can enable the central control module to control the EL detector and the infrared thermal imager to detect the photovoltaic panel at a fixed time, the central control module is unidirectionally electrically connected to the storage module, the storage module is unidirectionally electrically connected to the database, the database is unidirectionally electrically connected to the wired transmission port, the central control module can store the detection data of the EL detector and the infrared thermal imager in the database through the storage module, so that the detection personnel can copy the detection data in the database through the wired transmission port when they arrive at the site.

[0005] Preferably, the first moving mechanism comprises a longitudinal drive support slot, a longitudinal drive motor, a longitudinal screw rod, a longitudinal threaded block, a longitudinal sliding support slot, a longitudinal sliding rod and a sliding block, the longitudinal drive support slot is fixedly installed on one side of the oblique support frame, a longitudinal drive motor is fixedly installed at one end of the longitudinal drive support slot, an output end of the longitudinal drive motor is fixedly connected to one end of the longitudinal screw rod, the longitudinal screw rod is arranged in the longitudinal drive support slot along the length direction of the longitudinal drive support slot, and the two ends of the longitudinal screw rod are rotatably connected to the two ends of the longitudinal drive support slot respectively, the axial direction of the longitudinal screw rod is parallel to the longitudinal direction of the photovoltaic panel, and the longitudinal screw rod The gear train is threadedly connected to the longitudinal threaded block, and the longitudinal threaded block is slidably arranged on the inner side of the longitudinal driving support slot body; the longitudinal sliding support slot body is fixedly installed on the other side of the oblique support frame, and a longitudinal sliding rod is fixedly arranged in the longitudinal sliding support slot body along its length direction, and the two ends of the longitudinal sliding rod are respectively fixedly connected to the two ends of the longitudinal sliding support slot body, and the longitudinal sliding rod is slidably connected to the sliding block, and the sliding block is slidably arranged on the inner side of the longitudinal sliding support slot body; the tops of the sliding block and the longitudinal threaded block are fixedly provided with a connecting vertical plate, and the upper ends of the connecting vertical plate extend beyond the longitudinal driving support slot body and the top of the longitudinal sliding support slot body and are fixedly connected to the second moving mechanism.

[0006] Preferably, the second moving mechanism comprises a supporting cross plate, a transverse supporting slot body, a transverse driving motor, a transverse screw rod and a transverse threaded block, the length direction of the supporting cross plate is parallel to the transverse direction of the photovoltaic panel, and two ends of the bottom of the supporting cross plate are respectively fixedly connected to the upper ends of the connecting vertical plates on both sides. The supporting cross plate is fixedly provided with the transverse supporting slot body, the length direction of the transverse supporting slot body is consistent with the length direction of the supporting cross plate, one end of the transverse supporting slot body is fixedly installed with a transverse driving motor, the output end of the transverse driving motor is fixedly connected to one end of the transverse screw rod, the transverse screw rod is arranged in the transverse supporting slot body along the length direction of the transverse supporting slot body, and the two ends of the transverse screw rod are respectively rotatably connected to the two ends of the transverse supporting slot body, the axial direction of the transverse screw rod is parallel to the transverse direction of the photovoltaic panel, the transverse screw rod is threadedly connected to the transverse threaded block, the transverse threaded block is slidably arranged on the inner side of the transverse supporting slot body, and a connecting vertical plate is fixedly provided at the bottom of the transverse threaded block, and the lower end of the connecting vertical plate is fixedly connected to the detection component.

[0007] Preferably, the detection assembly also includes a protective box, in which the EL detector and the infrared thermal imager are fixedly installed, and the detection probes of the EL detector and the infrared thermal imager both extend out of the protective box and face vertically toward the surface of the photovoltaic panel.

[0008] Preferably, the two sides of the longitudinal thread block, the sliding block and the transverse thread block are respectively slidably connected to the two sides of the longitudinal drive support groove body, the longitudinal sliding support groove body and the transverse support groove body through the cooperation of a limiting sliding block and a limiting sliding groove.

[0009] Preferably, the axial lengths of the longitudinal screw rod and the longitudinal sliding rod are greater than the longitudinal length of the photovoltaic panel, and the axial length of the transverse screw rod is greater than the transverse length of the photovoltaic panel.

[0010] Preferably, a plurality of L-shaped support plates are fixedly provided at the bottom of the longitudinal drive support trough body and the longitudinal sliding support trough body, and a mounting plate is fixedly provided at one end of each L-shaped support plate facing the oblique support frame, and the mounting plate is fixedly installed on the side of the oblique support frame by bolt connection.

[0011] Preferably, the central control module is also unidirectionally electrically connected to the wireless transmission module, and the wireless transmission module is unidirectionally electrically connected to the background terminal, so that the background monitoring personnel can timely analyze the detection data of the EL detector and the infrared thermal imager.

[0012] A detection method of a photovoltaic panel fault detection device specifically comprises the following steps:

[0013] Step 1: The photovoltaic component fault detection system autonomously performs fault detection on the photovoltaic panel, and controls the EL detector and infrared thermal imager to detect whether there are hidden cracks and hot spots on the photovoltaic panel through the timing module and the central control module;

[0014] Step 2: The photovoltaic component fault detection system controls the detection moving mechanism to drive the detection component to perform a comprehensive detection on the surface of the photovoltaic panel, and controls the first moving mechanism and the second moving mechanism through the central control module to drive the EL detector and the infrared thermal imager to move longitudinally and transversely along the surface of the photovoltaic panel respectively, so that the EL detector and the infrared thermal imager can perform a comprehensive hidden crack and hot spot detection on the surface of the photovoltaic panel;

[0015] Step 3: If the EL detector and infrared thermal imager detect the presence of hidden cracks and hot spots on the surface of the photovoltaic panel, the detection data will be transmitted to the central control module, and the central control module will store the detection data in the database through the storage module, so that the detection personnel can copy the detection data in the database through the wired transmission port when they arrive at the site.

[0016] To facilitate subsequent analysis, the central control module transmits the detection data to the background terminal through the wireless transmission module, so that the background monitoring personnel can analyze the detection data of the EL detector and infrared thermal imager in time.

[0017] A photovoltaic panel fault detection device of the present application, through the EL detector, infrared thermal imager and photovoltaic component fault detection system, can independently control the EL detector and infrared thermal imager through the photovoltaic component fault detection system to perform hidden crack and hot spot fault detection on the photovoltaic panel, so that the detection personnel do not need to frequently go to the site for detection work, which can not only ensure the fault detection work, but also improve the detection efficiency; through the setting of the first moving mechanism and the second moving structure in the detection moving mechanism, the photovoltaic component fault detection system can control the first moving mechanism and the second moving mechanism to drive the EL detector and the infrared thermal imager to move longitudinally and transversely along the surface of the photovoltaic panel respectively, so that the EL detector and the infrared thermal imager can perform comprehensive hidden crack and hot spot detection on the surface of the photovoltaic panel, thereby ensuring the comprehensiveness of the detection work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereoscopic diagram of a photovoltaic panel fault detection device according to an embodiment of the present application.

[0019] Figure 2 It is a stereoscopic diagram from the back perspective of a photovoltaic panel fault detection device according to an embodiment of the present application.

[0020] Figure 3 It is a front view structural diagram of a photovoltaic panel fault detection device according to one embodiment of the present application.

[0021] Figure 4 It is a stereoscopic diagram of a detection moving mechanism of a photovoltaic panel fault detection device according to an embodiment of the present application.

[0022] Figure 5 It is a cross-sectional view of a detection moving mechanism of a photovoltaic panel fault detection device according to an embodiment of the present application.

[0023] Figure 6 It is a cross-sectional view of a second moving mechanism of a photovoltaic panel fault detection device according to an embodiment of the present application.

[0024] Figure 7 This is a stereoscopic diagram of a photovoltaic panel fault detection device in use according to an embodiment of the present application.

[0025] Figure 8 It is a block diagram of the composition of a photovoltaic component fault detection system of a photovoltaic panel fault detection device according to an embodiment of the present application.

[0026] Attached figures: 1. Photovoltaic panel; 2. Oblique support frame; 3. Detection moving mechanism; 31. First moving mechanism; 311. Longitudinal drive support trough; 312. Longitudinal drive motor; 313. Longitudinal screw rod; 314. Longitudinal threaded block; 315. Longitudinal sliding support trough; 316. Longitudinal slide rod; 317. Sliding block; 318. Connecting vertical plate; 319. L-shaped support plate; 32. Second moving mechanism; 321. Supporting horizontal plate; 322. Transverse support trough; 323. Transverse drive motor; 324. Transverse screw rod; 325. Transverse threaded block; 326. Connecting vertical plate; 4. Detection component; 41. EL detector; 42. Infrared thermal imager; 43. Protective box; 5. Controller; 6. Photovoltaic component fault detection system. DETAILED DESCRIPTION

[0027] The following will be combined with the 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 without creative work are within the scope of protection of the present invention.

[0028] In order to make the content of this application easier to understand, the technical solutions in the embodiments of this application will be described clearly and completely in conjunction with the drawings in the embodiments of this application. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached drawings. Figure 1 In the context of the present invention, the words "inside" and "outside" refer to directions toward or away from the geometric center of a particular component, respectively. In addition, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] like Figures 1 to 8As shown, a photovoltaic panel 1 fault detection device includes a photovoltaic component, a detection moving mechanism 3, a detection component 4 and a controller 5. The photovoltaic component includes a photovoltaic panel 1, an oblique support frame 2 and a counterweight base. The bottom of the oblique support frame 2 is fixed on the counterweight base, and the counterweight base is fixedly installed on the photovoltaic installation ground. The photovoltaic panel 1 is fixedly installed on the upper surface of the oblique support frame 2. The detection moving mechanism 3 is fixedly installed on both sides of the oblique support frame 2. The detection component 4 is installed on the detection moving mechanism 3. The detection component 4 is electrically connected to the controller 5, and the controller 5 is installed on one side of the photovoltaic component; the detection component 4 includes an EL detection The EL detector 41, the infrared thermal imager 42 and the protective box 43 are fixedly installed in the protective box 43. The detection probes of the EL detector 41 and the infrared thermal imager 42 are extended out of the protective box 43 and vertically face the surface of the photovoltaic panel 1. The EL detector 41 and the infrared thermal imager 42 are electrically connected to the controller 5. The photovoltaic component fault detection system 6 is arranged in the controller 5; the photovoltaic component fault detection system 6 includes a central control module, which is bidirectionally electrically connected to the EL detector 41 and the infrared thermal imager 42 respectively. The timing module is bidirectionally electrically connected. The timing module enables the central control module to control the EL detector 41 and the infrared thermal imager 42 to detect the photovoltaic panel 1 at a fixed time. The central control module is unidirectionally electrically connected to the storage module, the storage module is unidirectionally electrically connected to the database, and the database is unidirectionally electrically connected to the wired transmission port. The central control module can store the detection data of the EL detector 41 and the infrared thermal imager 42 in the database through the storage module, so that the detection personnel can copy the detection data in the database through the wired transmission port when they arrive at the site. The central control module is also unidirectionally electrically connected to the wireless transmission module. Electrical connection, the wireless transmission module is electrically connected to the background terminal in a unidirectional manner, so that the background monitoring personnel can timely analyze the detection data of the EL detector 41 and the infrared thermal imager 42; in this design, through the setting of the EL detector 41, the infrared thermal imager 42 and the photovoltaic component fault detection system 6, the photovoltaic component fault detection system 6 can autonomously control the EL detector 41 and the infrared thermal imager 42 to perform hidden crack and hot spot fault detection on the photovoltaic panel 1, so that the detection personnel do not need to frequently go to the site for detection work, which can not only ensure the fault detection work, but also improve the detection efficiency.

[0030] The detection moving mechanism 3 includes a first moving mechanism 31 and a second moving mechanism 32. The first moving mechanism 31 is fixedly installed on both sides of the oblique support frame 2. The second moving mechanism 32 is installed on the first moving mechanism 31. The detection component 4 is installed on the second moving mechanism 32. The first moving mechanism 31 is used to drive the detection component 4 to move along the longitudinal direction of the photovoltaic panel 1, and the second moving mechanism 32 is used to drive the detection component 4 to move along the transverse direction of the photovoltaic panel 1. In this design, through the setting of the first moving mechanism 31 and the second moving structure in the detection moving mechanism 3, the photovoltaic component fault detection system 6 can control the first moving mechanism 31 and the second moving mechanism 32 to drive the EL detector 41 and the infrared thermal imager 42 to move longitudinally and transversely along the surface of the photovoltaic panel 1 respectively, so that the EL detector 41 and the infrared thermal imager 42 can perform comprehensive hidden crack and hot spot detection on the surface of the photovoltaic panel 1, thereby ensuring the comprehensiveness of the detection work.

[0031] Specifically, the first moving mechanism 31 includes a longitudinal driving support slot 311, a longitudinal driving motor 312, a longitudinal screw rod 313, a longitudinal threaded block 314, a longitudinal sliding support slot 315, a longitudinal slide rod 316 and a sliding block 317. The bottom of the longitudinal driving support slot 311 and the longitudinal sliding support slot 315 are fixedly provided with a plurality of L-shaped support plates 319, and one end of each L-shaped support plate 319 facing the oblique support frame 2 is fixedly provided with a mounting plate, and the mounting plate is fixedly installed on the oblique support frame by bolt connection. 2 side, the design makes the detection moving mechanism 3 a detachable mechanism, which is convenient for subsequent inspection and maintenance; a longitudinal driving motor 312 is fixedly installed at one end of the longitudinal driving support groove 311, and the output end of the longitudinal driving motor 312 is fixedly connected to one end of the longitudinal screw rod 313, and the longitudinal screw rod 313 is arranged in the longitudinal driving support groove 311 along the length direction of the longitudinal driving support groove 311, and the two ends of the longitudinal screw rod 313 are respectively rotatably connected to the two ends of the longitudinal driving support groove 311, and the axis of the longitudinal screw rod 313 The direction is parallel to the longitudinal direction of the photovoltaic panel 1. The longitudinal screw rod 313 is threadedly connected with the longitudinal thread block 314, and the longitudinal thread block 314 is slidably arranged on the inner side of the longitudinal driving support groove body 311; a longitudinal sliding rod 316 is fixedly arranged in the longitudinal sliding support groove body 315 along its length direction, and the two ends of the longitudinal sliding rod 316 are respectively fixedly connected to the two ends of the longitudinal sliding support groove body 315, and the longitudinal sliding rod 316 is slidably connected with the sliding block 317, and the sliding block 317 is slidably arranged on the inner side of the longitudinal sliding support groove body 315; in addition, the longitudinal thread The axial length of the rod 313 and the longitudinal sliding rod 316 is greater than the longitudinal length of the photovoltaic panel 1, so that the first moving mechanism 31 can drive the path of the EL detector 41 and the infrared thermal imager 42 in the detection assembly 4 to completely cover the longitudinal length of the surface of the photovoltaic panel 1; the top of the sliding block 317 and the longitudinal threaded block 314 are fixedly provided with a connecting vertical plate 318, and the upper end of the connecting vertical plate 318 extends beyond the longitudinal driving support groove body 311 and the longitudinal sliding support groove body 315 and is fixedly connected to the second moving mechanism 32.

[0032] Specifically, the second moving mechanism 32 includes a supporting transverse plate 321, a transverse supporting slot 322, a transverse driving motor 323, a transverse screw rod 324 and a transverse threaded block 325. The length direction of the supporting transverse plate 321 is parallel to the transverse direction of the photovoltaic panel 1. The two ends of the bottom of the supporting transverse plate 321 are respectively fixedly connected to the upper ends of the connecting vertical plates 318 on both sides. A transverse supporting slot 322 is fixedly provided on the supporting transverse plate 321. The length direction of the transverse supporting slot 322 is consistent with the length direction of the supporting transverse plate 321. A transverse driving motor 323 is fixedly installed at one end of the transverse supporting slot 322. The output end of the transverse driving motor 323 is fixedly connected to one end of the transverse screw rod 324. The transverse screw rod 324 is connected along the length direction of the transverse supporting slot 322. It is arranged in the transverse support groove body 322, and the two ends of the transverse screw rod 324 are rotatably connected to the two ends of the transverse support groove body 322 respectively, the axial direction of the transverse screw rod 324 is parallel to the transverse direction of the photovoltaic panel 1, the transverse screw rod 324 is threadedly connected with the transverse thread block 325, the transverse thread block 325 is slidably arranged on the inner side of the transverse support groove body 322, and a connecting vertical plate 326 is fixedly provided at the bottom of the transverse thread block 325, and the lower end of the connecting vertical plate 326 is fixedly connected to the detection component 4; in addition, the axial length of the transverse screw rod 324 is greater than the transverse length of the photovoltaic panel 1, so that the second moving mechanism 32 can drive the path of the EL detector 41 and the infrared thermal imager 42 in the detection component 4 to completely cover the transverse length of the surface of the photovoltaic panel 1.

[0033] In a specific implementation, when the detection component 4 needs to be moved longitudinally along the surface of the photovoltaic panel 1, the central control module of the photovoltaic component fault detection system 6 controls the longitudinal drive motor 312 to drive the longitudinal screw rod 313 to rotate, thereby driving the longitudinal threaded block 314 to move axially along the longitudinal screw rod 313, and at the same time drives the sliding block 317 to move axially along the sliding rod, thereby driving the second moving mechanism 32 and the detection component 4 to move longitudinally along the surface of the photovoltaic panel 1; when the detection component 4 needs to be moved transversely along the surface of the photovoltaic panel 1, the central control module of the photovoltaic component fault detection system 6 controls the transverse drive motor 323 to drive The movable transverse screw rod 324 rotates, thereby driving the transverse threaded block 325 to move axially along the transverse screw rod 324, thereby driving the detection component 4 to move laterally along the surface of the photovoltaic panel 1; the longitudinal movement of the detection component 4 is intermittent, that is, when the second moving mechanism 32 drives the detection component 4 to complete a transverse movement detection of the surface of the photovoltaic panel 1, the first moving mechanism 31 drives the second moving mechanism 32 and the detection component 4 to move longitudinally along the surface of the photovoltaic panel 1 for a certain distance, and then the second moving mechanism 32 drives the detection component 4 again to complete a transverse movement detection of the surface of the photovoltaic panel 1 until all detection work on the surface of the photovoltaic panel 1 is completed.

[0034] In one embodiment, the two sides of the longitudinal thread block 314, the sliding block 317 and the transverse thread block 325 are respectively slidably connected to the two sides of the longitudinal drive support groove 311, the longitudinal sliding support groove 315 and the transverse support groove 322 through the cooperation of the limiting slider and the limiting sliding groove. This design can ensure that the longitudinal thread block 314, the sliding block 317 and the transverse thread block 325 slide smoothly in the longitudinal drive support groove 311, the longitudinal sliding support groove 315 and the transverse support groove 322.

[0035] A detection method of a photovoltaic panel 1 fault detection device specifically comprises the following steps:

[0036] Step 1: The photovoltaic component fault detection system 6 autonomously performs fault detection on the photovoltaic panel 1, and controls the EL detector 41 and the infrared thermal imager 42 to detect whether there are hidden cracks and hot spots on the photovoltaic panel 1 through the timing module and the central control module;

[0037] Step 2: The photovoltaic component fault detection system 6 controls the detection moving mechanism 3 to drive the detection component 4 to perform a comprehensive detection on the surface of the photovoltaic panel 1, and controls the first moving mechanism 31 and the second moving mechanism 32 through the central control module to drive the EL detector 41 and the infrared thermal imager 42 to move longitudinally and transversely along the surface of the photovoltaic panel 1, respectively, so that the EL detector 41 and the infrared thermal imager 42 can perform a comprehensive hidden crack and hot spot detection on the surface of the photovoltaic panel 1;

[0038] Step three: If the EL detector 41 and the infrared thermal imager 42 detect the presence of hidden cracks and hot spots on the surface of the photovoltaic panel 1, the detection data will be transmitted to the central control module, and the central control module will store the detection data in the database through the storage module, so that the detection personnel can arrive at the site and copy the detection data in the database through the wired transmission port for subsequent analysis. At the same time, the central control module transmits the detection data to the background terminal through the wireless transmission module, so that the background monitoring personnel can analyze the detection data of the EL detector 41 and the infrared thermal imager 42 in time.

[0039] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, without departing from the spirit and scope defined by the claims of the present application.

Claims

1. A photovoltaic panel fault detection device, comprising a photovoltaic assembly, a detection moving mechanism (3), a detection assembly (4) and a controller (5), wherein the photovoltaic assembly comprises a photovoltaic panel (1), an oblique support frame (2) and a counterweight base, wherein the bottom of the oblique support frame (2) is fixed to the counterweight base, the counterweight base is fixedly installed on the photovoltaic installation ground, and the photovoltaic panel (1) is fixedly installed on the upper surface of the oblique support frame (2), characterized in that: The detection moving mechanism (3) is fixedly mounted on both sides of the oblique support frame (2), the detection moving mechanism (3) is mounted on the detection component (4), the detection component (4) is electrically connected to the controller (5), and the controller (5) is mounted on one side of the photovoltaic component; The detection moving mechanism (3) comprises a first moving mechanism (31) and a second moving mechanism (32); the first moving mechanism (31) is fixedly mounted on both sides of the oblique support frame (2); the second moving mechanism (32) is mounted on the first moving mechanism (31); the detection component (4) is mounted on the second moving mechanism (32); the first moving mechanism (31) is used to drive the detection component (4) to move along the longitudinal direction of the photovoltaic panel (1); and the second moving mechanism (32) is used to drive the detection component (4) to move along the transverse direction of the photovoltaic panel (1); The detection component (4) comprises the EL detector (41) and the infrared thermal imager (42), the EL detector (41) and the infrared thermal imager (42) are electrically connected to the controller (5), and the controller (5) is provided with a photovoltaic component fault detection system (6); The photovoltaic component fault detection system (6) comprises a central control module, the central control module is bidirectionally electrically connected to the EL detector (41) and the infrared thermal imager (42), the central control module is bidirectionally electrically connected to a timing module, the timing module enables the central control module to control the EL detector (41) and the infrared thermal imager (42) to detect the photovoltaic panel (1) at a fixed time, the central control module is unidirectionally electrically connected to a storage module, the storage module is unidirectionally electrically connected to a database, the database is unidirectionally electrically connected to a wired transmission port, the central control module can store the detection data of the EL detector (41) and the infrared thermal imager (42) in the database through the storage module, so that the detection personnel can copy the detection data in the database through the wired transmission port when arriving at the site.

2. A photovoltaic panel fault detection device according to claim 1, characterized in that: The first moving mechanism (31) comprises a longitudinal driving support groove (311), a longitudinal driving motor (312), a longitudinal screw rod (313), a longitudinal threaded block (314), a longitudinal sliding support groove (315), a longitudinal sliding rod (316) and a sliding block (317); the longitudinal driving support groove (311) is fixedly mounted on one side of the oblique support frame (2); a longitudinal driving motor (312) is fixedly mounted on one end of the longitudinal driving support groove (311); an output end of the longitudinal driving motor (312) is connected to one end of the longitudinal screw rod (313); The longitudinal screw rod (313) is fixedly connected to the longitudinal drive support groove body (311) along the length direction of the longitudinal drive support groove body (311), and the two ends of the longitudinal screw rod (313) are rotatably connected to the two ends of the longitudinal drive support groove body (311), the axial direction of the longitudinal screw rod (313) is parallel to the longitudinal direction of the photovoltaic panel (1), the longitudinal screw rod (313) is threadedly connected to the longitudinal thread block (314), and the longitudinal thread block (314) is slidably arranged on the inner side of the longitudinal drive support groove body (311); The longitudinal sliding support groove (315) is fixedly installed on the other side of the oblique support frame (2), and a longitudinal sliding rod (316) is fixedly arranged in the longitudinal sliding support groove (315) along its length direction, and the two ends of the longitudinal sliding rod (316) are respectively fixedly connected to the two ends of the longitudinal sliding support groove (315), and the longitudinal sliding rod (316) is slidably connected to the sliding block (317), and the sliding block (317) is slidably arranged on the inner side of the longitudinal sliding support groove (315); A connecting vertical plate (318) is fixedly provided on the top of the sliding block (317) and the longitudinal threaded block (314), and the upper end of the connecting vertical plate (318) extends beyond the longitudinal driving support groove body (311) and the longitudinal sliding support groove body (315) and is fixedly connected to the second moving mechanism (32).

3. A photovoltaic panel fault detection device according to claim 2, characterized in that: The second moving mechanism (32) comprises a supporting transverse plate (321), a transverse supporting groove body (322), a transverse driving motor (323), a transverse screw rod (324) and a transverse threaded block (325); the length direction of the supporting transverse plate (321) is parallel to the transverse direction of the photovoltaic panel (1); the two ends of the bottom of the supporting transverse plate (321) are respectively fixedly connected to the upper ends of the connecting vertical plates (318) on both sides; the supporting transverse plate (321) is fixedly provided with the transverse supporting groove body (322); the length direction of the transverse supporting groove body (322) is consistent with the length direction of the supporting transverse plate (321); one end of the transverse supporting groove body (322) is fixedly installed with a transverse driving motor (323); the output of the transverse driving motor (323) is The end of the transverse screw rod (324) is fixedly connected to one end of the transverse screw rod (324); the transverse screw rod (324) is arranged in the transverse support groove body (322) along the length direction of the transverse support groove body (322); and the two ends of the transverse screw rod (324) are rotatably connected to the two ends of the transverse support groove body (322), respectively; the axial direction of the transverse screw rod (324) is parallel to the transverse direction of the photovoltaic panel (1); the transverse screw rod (324) is threadedly connected to the transverse thread block (325); the transverse thread block (325) is slidably arranged on the inner side of the transverse support groove body (322); a connecting vertical plate (326) is fixedly provided at the bottom of the transverse thread block (325); and the lower end of the connecting vertical plate (326) is fixedly connected to the detection component (4).

4. A photovoltaic panel fault detection device according to claim 3, characterized in that: The detection assembly (4) further comprises a protection box (43), wherein the EL detector (41) and the infrared thermal imager (42) are fixedly installed in the protection box (43), and the detection probes of the EL detector (41) and the infrared thermal imager (42) both extend out of the protection box (43) and face vertically toward the surface of the photovoltaic panel (1).

5. A photovoltaic panel fault detection device according to claim 3, characterized in that: The two sides of the longitudinal thread block (314), the sliding block (317) and the transverse thread block (325) are respectively slidably connected to the two sides of the longitudinal drive support groove body (311), the longitudinal sliding support groove body (315) and the transverse support groove body (322) through the cooperation of the limiting sliding block and the limiting sliding groove.

6. A photovoltaic panel fault detection device according to claim 3, characterized in that: The axial lengths of the longitudinal screw rod (313) and the longitudinal sliding rod (316) are greater than the longitudinal length of the photovoltaic panel (1), and the axial length of the transverse screw rod (324) is greater than the transverse length of the photovoltaic panel (1).

7. A photovoltaic panel fault detection device according to claim 2, characterized in that: A plurality of L-shaped support plates (319) are fixedly provided at the bottom of the longitudinal drive support trough (311) and the longitudinal sliding support trough (315), and a mounting plate is fixedly provided at one end of each L-shaped support plate (319) facing the oblique support frame (2), and the mounting plate is fixedly installed on the side of the oblique support frame (2) by bolt connection.

8. A photovoltaic panel fault detection device according to claim 1, characterized in that: The central control module is also unidirectionally electrically connected to the wireless transmission module, and the wireless transmission module is unidirectionally electrically connected to the back-end terminal, so that the back-end monitoring personnel can timely analyze the detection data of the EL detector (41) and the infrared thermal imager (42).

9. The detection method of the photovoltaic panel (1) fault detection device according to any one of claims 1 to 8, characterized in that: The specific steps include: Step 1: The photovoltaic component fault detection system (6) autonomously performs fault detection on the photovoltaic panel (1), and controls the EL detector (41) and the infrared thermal imager (42) to detect whether there are hidden cracks and hot spots on the photovoltaic panel (1) through the timing module and the central control module; Step 2: The photovoltaic component fault detection system (6) controls the detection moving mechanism (3) to drive the detection component (4) to perform a comprehensive detection on the surface of the photovoltaic panel (1), and controls the first moving mechanism (31) and the second moving mechanism (32) through the central control module to drive the EL detector (41) and the infrared thermal imager (42) to move longitudinally and transversely along the surface of the photovoltaic panel (1), respectively, so that the EL detector (41) and the infrared thermal imager (42) can perform a comprehensive hidden crack and hot spot detection on the surface of the photovoltaic panel (1); Step 3: If the EL detector (41) and the infrared thermal imager (42) detect the presence of hidden cracks and hot spots on the surface of the photovoltaic panel (1), the detection data will be transmitted to the central control module, and the central control module will store the detection data in the database through the storage module, so that the detection personnel can copy the detection data in the database through the wired transmission port when they arrive at the site, which is convenient for subsequent analysis. At the same time, the central control module transmits the detection data to the background terminal through the wireless transmission module, so that the background monitoring personnel can analyze the detection data of the EL detector (41) and the infrared thermal imager (42) in time.

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