A kind of distributed photovoltaic power station topology structure connection detection equipment

Abstract

The application discloses a kind of topological structure connection detection equipment for distributed photovoltaic power station, it is related to photovoltaic power station detection technical field, including bearing vehicle body, the inside of bearing vehicle body is equipped with detector, the outside of detector is equipped with stable detection mechanism, stable detection mechanism includes movable base plate, movable base plate is movably connected in the inside of bearing vehicle body, movable base plate below is equipped with drive cylinder, and the above of detector is equipped with several convex axle slide plates, so that detector and photovoltaic module keep consistent inclination angle, this process can fundamentally eliminate the imaging distortion generated by equipment and detection target angle mismatch, ensure that the connection node of photovoltaic module, such as board interconnector shape, edge is clear, facilitate subsequent detail identification of connection state;Meanwhile, consistent inclination angle can make the detection direction of detector and the connection line trend of photovoltaic module keep parallel, reduce the line obstruction or misjudgment caused by angle of view deviation.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photovoltaic power station detection, in particular to a topological structure connection detection equipment for distributed photovoltaic power station. BACKGROUND

[0002] The existing topological structure connection detection equipment for distributed photovoltaic power station is designed for the distributed photovoltaic power station with components installed, which is suitable for scenes such as roof and ground scattered area, can cope with hidden and scattered line connection in complex power station structure, and its core function is to detect the electrical connection relationship of photovoltaic panels and other components, line direction, and whether the node exists open circuit, short circuit, virtual connection and other problems, so as to verify the integrity and correctness of the topological structure, help operation and maintenance personnel to quickly locate connection fault, and ensure the stable operation of the distributed photovoltaic system.

[0003] However, the existing technology still has the following defects in specific use:

[0004] 1. Compared with the prior art, when the equipment is inclined in a complex environment, the detection device will be directly inclined with the vehicle body, and the core reason is that the detection device and the bearing vehicle body adopt a rigid connection structure. Most of the detection modules of the equipment are directly locked in the vehicle body through a fixed support, and there is no relative movable adjusting mechanism between them, so that a posture compensation buffer space cannot be formed. Therefore, when the vehicle body is inclined due to ground protrusions, slopes or potholes, this rigid connection will directly transmit the inclination angle to the detection device, so that it cannot maintain a horizontal state independently, but can only passively change the posture with the vehicle body, and finally form a chain reaction of vehicle body inclination and synchronous inclination of the detection device.

[0005] When this inclination occurs, it will directly lead to a significant decline in the accuracy of the detection data. Since the detection device inclines with the vehicle body, the shooting or detection angle deviates, the connection nodes of the photovoltaic components may deviate from the detection range, or the imaging distortion is caused by the angle distortion, so that the obtained connection state information does not match the actual situation, affecting the judgment of the integrity of the topological structure. At the same time, the equipment has poor adaptability to complex environments. In uneven areas such as roofs and mountains, workers need to frequently get off the vehicle to adjust the parking position of the vehicle body, and even need to use additional tools to level the vehicle body. This not only increases the labor cost, but also seriously slows down the detection progress. In large-scale power station detection, the rework and interruption caused by the posture deviation will significantly reduce the overall work efficiency, and it is difficult to meet the needs of efficient operation and maintenance of distributed photovoltaic power stations.

[0006] 2. Compared to existing technologies, the testing instrument is more susceptible to external light interference when inspecting photovoltaic modules. The core reason is the lack of a targeted shading structure design. The lens of the testing device is usually directly exposed to the outdoor environment. There are no light-blocking components adapted to the tilt angle of the photovoltaic panel, nor is there a differentiated shading mechanism that can distinguish between upward and downward light. Upward light (such as direct midday sunlight and reflected light from clouds) can directly hit the lens surface. Since photovoltaic panels are often installed at an angle, the lens forms an angle with the horizontal plane, making it easier for upward light to enter along the lens axis. Downward light (such as reflected light from the ground, scattered light from weeds or supports) will enter through the gap below the lens. This interference is more pronounced when testing photovoltaic modules installed at low angles, as the lens is closer to the ground.

[0007] Such lighting conditions can drastically degrade image quality. Direct overhead light can cause glare or light spots on the lens, obscuring subtle features such as oxidation or loose connections in the connectors. Reflected light from below reduces image contrast, blurring the boundaries between connection nodes and the background, making it difficult to distinguish the route and connection status. Secondly, it can lead to misjudgments in the detection data. Overexposed areas may be misjudged as ablation faults, while blurred areas may miss hidden circuit breaks, resulting in inaccurate assessments of the integrity of the topology. Furthermore, lighting interference forces workers to choose specific times (such as cloudy days or evenings) for inspection, limiting the flexibility of work time. Especially in distributed photovoltaic power stations, the light conditions of photovoltaic modules in different installation locations vary greatly. At the same time, some areas may have excessively strong light while others have insufficient light, further increasing the difficulty of inspection and rework rate, and seriously affecting operation and maintenance efficiency.

[0008] Therefore, in view of this, the present invention proposes a topology structure for connecting detection equipment in distributed photovoltaic power stations to make up for and improve the deficiencies of the prior art. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention provides a topology connection detection device for distributed photovoltaic power stations, thereby resolving the technical issues raised in the background section.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a topology connection detection device for distributed photovoltaic power stations, used for connection detection of photovoltaic modules, including a carrier vehicle body, a detection instrument installed inside the carrier vehicle body, a stable detection mechanism set outside the detection instrument, the stable detection mechanism including a movable base plate, the movable base plate being movably connected to the inside of the carrier vehicle body, a drive cylinder installed below the movable base plate, and several convex shaft sliding plates installed above the detection instrument;

[0011] The device adopts hidden storage, step-by-step calibration detection mode, a plurality of convex shaft slide plates are initially in a contracted state to hide the detector inside the bearing vehicle body, when the detector performs the detection process, the driving cylinder drives the control movable bottom plate to rotate, drives the detector and the inclination angle of the photovoltaic module to be consistent, realizes the horizontal angle calibration, then a plurality of convex shaft slide plates are switched from the contracted state to the expanded state, a circular hole-shaped shooting hole is formed outside the detector which is adapted to the outer diameter of the detector, so that the detector is completely aligned with the detection area in the vertical direction, realizing the vertical angle calibration.

[0012] Further, the driving cylinder is located away from the bearing vehicle body and the movable bottom plate rotation point, and the output shaft end of the driving cylinder is in close contact with the movable bottom plate.

[0013] Further, the lower surface of the movable bottom plate is uniformly fixedly connected with a cylindrical convex shaft, and a weighing frame is installed below the movable bottom plate, the part close to the cylindrical convex shaft of the weighing frame is in the form of an inclined trapezoid, the inside of the cylindrical convex shaft is hollow designed, and the inside stores an aqueous solution.

[0014] Further, the lower surface of the weighing frame is uniformly fixedly connected with a universal ball shaft, the end away from the weighing frame of the universal ball shaft is in the form of a spherical shape, the weighing frame is movably connected to the inside of the bearing vehicle body through the universal ball shaft, and the outer wall of the universal ball shaft is sleeved with a coil spring, and the two ends of the coil spring are fixedly connected with the weighing frame and the bearing vehicle body respectively.

[0015] Further, the cylindrical convex shafts are located on the motion path of the weighing frame, and the weighing frame is initially located at the center position between the cylindrical convex shafts.

[0016] Further, the upper surface of the movable bottom plate is fixedly connected with a limiting clamp plate at one end of the bearing vehicle body rotation point, the inside of the limiting clamp plate is rotatably connected with an electric turntable, the lower surface of the electric turntable is fixedly connected with an abutting shaft, and the upper surface of the movable bottom plate is provided with an arc groove corresponding to the position of the abutting shaft, and the electric turntable and the movable bottom plate are rotatably connected through the abutting shaft and the arc groove.

[0017] Further, the upper surface of the electric turntable is uniformly provided with a curved groove, and the inside of the curved groove is installed with a convex shaft slide plate, and the electric turntable and the convex shaft slide plate are rotatably connected through the curved groove.

[0018] Further, the upper surface of the convex shaft slide plate is slidably connected with a right-angle groove plate, the upper surface of the right-angle groove plate is fixedly connected with a suction ring pad, and the outside of the suction ring pad is sleeved with an assembly blocking shell.

[0019] Further, the adsorption ring pad is funnel-shaped with the upper part being wide and the lower part being narrow, the surface of the adsorption ring pad is provided with a light-absorbing coating, and the height ratio of the adsorption ring pad to the assembled blocking shell is 1:2.

[0020] Further, the bottom of the bearing vehicle body is provided with a control module, the control module comprises a main controller and a power supply, the control module is electrically connected with the detector, the driving cylinder is electrically controlled by the control module to operate, and the photovoltaic assembly is specifically a photovoltaic panel.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] (1) The device adopts a hidden storage and step-by-step calibration detection mode, which can significantly improve the practicality and adaptability of the equipment. In the hidden storage state, the convex shaft slide plate wraps the detector inside the bearing vehicle body, which not only avoids damage to the equipment due to external collision and dust erosion in the moving or non-detection state, prolongs the service life of the detector, but also reduces the overall volume of the equipment, facilitating flexible movement in narrow gaps between photovoltaic assembly arrays, especially suitable for space-limited scenarios such as rooftops and corners in distributed photovoltaic power stations; the step-by-step calibration process breaks down the complex calibration process into horizontal angle and vertical angle stages, focusing on single-dimensional adjustment in each stage, which not only reduces the difficulty of single calibration, but also ensures calibration accuracy through step-by-step verification, avoiding error accumulation caused by adjusting multiple parameters at once, and allowing the detector to accurately align the detection area in various complex environments.

[0023] (2) The horizontal angle calibration rotates the movable bottom plate by driving the cylinder to keep the detector and the photovoltaic assembly at the same inclination angle, which fundamentally eliminates imaging distortion caused by mismatch between the equipment and the detection target angle, ensuring that the photographed photovoltaic assembly connection nodes (such as inter-panel connectors) have complete shapes and clear edges, facilitating subsequent detailed identification of the connection state; at the same time, the consistent inclination angle allows the detection direction of the detector to be parallel to the connection line of the photovoltaic assembly, reducing line obstruction or misjudgment caused by viewing angle deviation, especially when detecting hidden connection nodes on the back or edge of the assembly, which maximizes the integrity of the detection range and avoids missing critical connection parts, providing more reliable basic data for topology structure integrity judgment.

[0024] Especially important is that when the bearing vehicle body tilts, the balance frame tilts with it, and the internal aqueous solution flows due to gravity to offset the center of gravity of the frame, so that the inclined trapezoidal part extrudes the corresponding side of the cylindrical shaft, and pushes the movable bottom plate to rotate around the connection point to offset the tilt, ensuring that the detector always remains horizontal. This way of ensuring that the detector always remains horizontal before horizontal calibration ensures the accuracy and reliability of the detection data, avoiding problems such as misalignment of the detection area and distortion of the data caused by angle deviation, and ensuring that the obtained photovoltaic module connection state information truly reflects the actual situation, providing accurate basis for subsequent connection judgment. Secondly, it improves the adaptability of the equipment in complex environments. The installation environment of distributed photovoltaic power stations is diverse, and there may be uneven ground, inclined parking of the bearing vehicle body, etc. This design can effectively resist these external disturbances and ensure the initial attitude of the detector stable under various working conditions, without the need for frequent adjustment of the parking position of the bearing vehicle body, improving the convenience and efficiency of detection operations. Especially in large-scale photovoltaic power station batch detection, the advantages brought by this stability are more obvious, which can significantly reduce the detection interruption or rework caused by environmental factors.

[0025] On the one hand, the balance frame with a hollow design greatly reduces its own weight, reduces the overall energy consumption of the bearing vehicle body, and makes the equipment more flexible during movement and adjustment, especially suitable for use in roof, mountain, etc. sensitive to the weight of the equipment, on the other hand, the fluidity of the aqueous solution is used to realize adaptive adjustment, which is more flexible than mechanical rigid adjustment. When the bearing vehicle body tilts, the aqueous solution can quickly respond to the action of gravity and flow to the low side, driving the frame to smoothly shift and extrude the cylindrical shaft. The whole process has no sharp impact, which can avoid vibration interference to the movable bottom plate and detector, and ensure the stability of the detection components. At the same time, the flow of the aqueous solution has self-adaptability, no matter which direction the bearing vehicle body tilts, it can automatically trigger the adjustment action of the corresponding side through the center of gravity offset, without presetting the adjustment direction, making the equipment more adaptable to complex terrain. Even in the process of mobile detection with changing tilt angles, it can continuously and stably maintain the horizontal state of the detector, providing a reliable foundation for subsequent calibration and detection.

[0026] (3) The vertical angle calibration is realized by expanding the convex shaft sliding plate to form a circular hole-shaped shooting hole, which realizes the limiting alignment of the detector and the detected area in the vertical direction. This method can effectively limit the shooting field of view of the detector, concentrate the detection focus on the specific connection node, and reduce the interference of the surrounding non-detection area (such as the surface stains of the photovoltaic panel and the frame structure) on the imaging. At the same time, the circular hole-shaped shooting hole increases the focal depth by reducing the light aperture, so that even if there is a certain height difference between the detector and the photovoltaic module, the imaging clarity of the connection node can be ensured, and the picture blur caused by distance fluctuation can be avoided. In addition, the adaptability design of the shooting hole and the outer diameter of the detector can form a stable optical channel in the vertical direction, cooperate with the light shielding of the adsorption ring pad and other structures, further improve the contrast and detail performance of the imaging, and enable the detector to more accurately identify the state of the connection node (such as whether it is virtually connected or short-circuited), thereby improving the accuracy of the topological structure connection detection.

[0027] In the actual detection process, the lens edge close to the rotation point is closer to the ground or support, and is easily disturbed by the stray light from the ground reflection, grass scattering and the like from below, while the lens edge away from the rotation point is more exposed to the open space and is easily affected by the strong light from above, such as sunlight and cloud reflection. The device uses the higher side (away from the rotation point) of the assembled blocking shell and the adsorption ring pad to block the direct strong light from above like a light-shielding eave, so as to avoid the direct entry of light into the lens to cause picture overexposure or spot. The lower side (close to the rotation point) retains a proper light transmission space, which will not cause the detection area to be dark due to too thick blocking (especially on cloudy days or when the component is backlit), and can also absorb the stray light from below by the light-absorbing coating of the adsorption ring pad to prevent the formation of glare in the lens. This on-demand blocking method can block external light according to the actual detection angle of the device, so as to avoid blur, reflection or detail loss caused by stray light interference, thereby ensuring more accurate identification of the connection state. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a front view of the structure of the application;

[0029] Figure 2 is a three-dimensional structure diagram of the stable detection mechanism of the application;

[0030] Figure 3 is a three-dimensional structure diagram of the position relationship of the detector of the application;

[0031] Figure 4 is a side view of the stable detection mechanism of the application;

[0032] Figure 5 is a three-dimensional structure diagram of the stable frame of the application;

[0033] Figure 6The state of the art is shown in the perspective view of the structure;

[0034] Figure 7 The state of the art is shown in the perspective view of the structure;

[0035] Figure 8 The state of the art is shown in the perspective view of the structure;

[0036] Figure 9 The state of the art is shown in the perspective view of the structure;

[0037] Figure 10 The state of the art is shown in the perspective view of the structure;

[0038] The figure is marked as:

[0039] 1, the bearing car body; 11, the control module; 12, the detector; 13, the photovoltaic component;

[0040] 2, the stable detection mechanism; 21, the movable bottom plate; 22, the cylindrical convex shaft; 23, the fixed frame; 24, the universal ball shaft; 25, the coil spring; 26, the drive cylinder; 27, the limiting clamping plate; 28, the electric rotary table; 29, the convex shaft sliding plate; 210, the right-angle groove plate; 211, the adsorption ring pad; 212, the assembly blocking shell. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application;

[0042] It should be noted that the structure and working principle of the above-mentioned bearing car body 1, control module 11, detector 12, photovoltaic component 13 and other devices belong to the prior art, which will not be described here.

[0043] Embodiment 1

[0044] Please refer to Figure 1 - Figure 10As shown in the figure, a kind of distributed photovoltaic power station topological structure connection detection equipment is used for connection detection of photovoltaic module 13, including bearing vehicle body 1, detection instrument 12 is installed in the inside of bearing vehicle body 1, stable detection mechanism 2 is provided outside detection instrument 12, stable detection mechanism 2 includes movable bottom plate 21, movable bottom plate 21 is movably connected to the inside of bearing vehicle body 1, drive cylinder 26 is installed below movable bottom plate 21, and the upper portion of detection instrument 12 is provided with a plurality of convex shaft sliding plates 29;The equipment adopts hidden storage, step-by-step calibration detection mode, a plurality of convex shaft sliding plates 29 are initially in the state of contraction, and detection instrument 12 is hidden to the inside of bearing vehicle body 1, when detection instrument 12 carries out detection process, movable bottom plate 21 is driven and controlled to rotate by drive cylinder 26, drives detection instrument 12 to be consistent with the inclination angle of photovoltaic module 13, realizes horizontal angle calibration, then, a plurality of convex shaft sliding plates 29 are switched from the state of contraction to the state of expansion, and the circular hole-shaped shooting hole that is adapted to the outer diameter of detection instrument 12 is formed outside detection instrument 12, so that detection instrument 12 is completely aligned with the detection area in the vertical direction, and vertical angle calibration is realized.

[0045] It should be noted that the bottom of bearing vehicle body 1 is provided with control module 11, control module 11 includes main controller and power supply, control module 11 is electrically connected with detection instrument 12, and drive cylinder 26 is electrically controlled by control module 11, and photovoltaic module 13 is specifically photovoltaic panel.

[0046] Please refer to Figure 1 - Figure 10 As shown in the figure, drive cylinder 26 is located at one end away from the rotation point of bearing vehicle body 1 and movable bottom plate 21, the output shaft end of drive cylinder 26 is attached to movable bottom plate 21, the lower surface of movable bottom plate 21 is uniformly fixedly connected with cylindrical convex shaft 22, drive cylinder 26 is installed below movable bottom plate 21, the part close to cylindrical convex shaft 22 of drive cylinder 26 is inclined trapezoidal, the inside of cylindrical convex shaft 22 is hollow, and water solution is stored in the inside, the lower surface of drive cylinder 26 is uniformly fixedly connected with universal ball shaft 24, the end away from drive cylinder 26 of universal ball shaft 24 is spherical, drive cylinder 26 is movably connected to the inside of bearing vehicle body 1 through universal ball shaft 24, the outer wall of universal ball shaft 24 is sleeved with coil spring 25, the two ends of coil spring 25 are fixedly connected with drive cylinder 26 and bearing vehicle body 1 respectively, cylindrical convex shaft 22 is located on the movement path of drive cylinder 26, and drive cylinder 26 is initially located at the center position between cylindrical convex shaft 22.

[0047] Specifically, when the bearing vehicle body 1 is tilted in an uneven detection environment, the weighing frame 23 is tilted synchronously with the bearing vehicle body 1 due to the articulated connection of the weighing frame 23 to the bearing vehicle body 1 through the universal ball shaft 24. At this time, the water solution stored in the weighing frame 23 flows to the lower side of the frame due to gravity, causing the center of gravity of the weighing frame 23 to shift to the side, thereby driving the weighing frame 23 to rotate around the universal ball shaft 24 to the low side. The coil spring 25 on the outer wall of the universal ball shaft 24 is twisted due to the rotation of the frame. As the weighing frame 23 shifts, the inclined trapezoidal part close to the cylindrical convex shaft 22 gradually contacts the corresponding cylindrical convex shaft 22 and exerts an upward pressure on the cylindrical convex shaft 22, thereby pushing the corresponding part of the movable bottom plate 21 upward. Since the movable bottom plate 21 is articulated to the bearing vehicle body 1, it rotates around the connection point under the push of the cylindrical convex shaft 22, thereby gradually offsetting the angle deviation caused by the tilt of the bearing vehicle body 1 until the movable bottom plate 21 returns to the horizontal state. At this time, the tilting trend of the weighing frame 23 is offset by the reaction force of the cylindrical convex shaft 22, the water solution stops flowing, the elastic tension of the coil spring 25 balances with the shift force of the frame, and the weighing frame 23 and the movable bottom plate 21 remain stable, completing the horizontal calibration.

[0048] After the horizontal calibration is completed, the control module 11 triggers the drive cylinder 26 to start, and the output shaft starts to elongate and continuously adheres to the end of the movable bottom plate 21 away from the rotation point. As the output shaft elongates, the movable bottom plate 21 rotates upward around the connection point to the bearing vehicle body 1 under the action of the driving force, driving the detector 12 installed on the movable bottom plate 21 to rotate synchronously. During the rotation process, the control module 11 monitors the tilt angle of the detector 12 in real time. When the tilt angle of the detector 12 is consistent with the tilt angle of the photovoltaic module 13, i.e., the photovoltaic panel, the control module 11 controls the drive cylinder 26 to stop running, the output shaft maintains the current length, and the movable bottom plate 21 and the detector 12 are stabilized at this angle, ensuring that the tilt angle of the detector 12 matches that of the photovoltaic module 13.

[0049] When the bearing vehicle body 1 returns to the horizontal state, the coil spring 25 that was twisted due to the tilt releases the elastic potential energy, generating a reverse torsional force to drive the weighing frame 23 to return to the original position around the universal ball shaft 24. As the frame rotates, the inclined trapezoidal part gradually releases the pressure on the cylindrical convex shaft 22, so the pushing force on the movable bottom plate 21 disappears. The movable bottom plate 21 rotates back to the horizontal position around the connection point under the action of its own gravity and the output shaft of the drive cylinder 26. At the same time, the water solution in the weighing frame 23 is evenly distributed again as the frame returns to the original position, and the center of gravity returns to the center position. Finally, the weighing frame 23 returns to the original central position between the cylindrical convex shafts 22, and the coil spring 25 also returns to the natural relaxed state, and the entire mechanism returns to the initial stable state.

[0050] Based on Embodiment 1, please refer to Figure 1 -Figure 10 As shown, the movable bottom plate 21 is fixedly connected with the upper portion of the end of the bearing vehicle body 1 rotating point with a limiting clamp plate 27, the inside of the limiting clamp plate 27 is rotatably connected with an electric turntable 28, the lower surface of the electric turntable 28 is fixedly connected with an abutting shaft, the upper surface of the movable bottom plate 21 is provided with an arc groove corresponding to the position of the abutting shaft, the electric turntable 28 and the movable bottom plate 21 are rotatably connected through the abutting shaft and the arc groove, the upper surface of the electric turntable 28 is uniformly provided with a curved groove, the inside of the curved groove is mounted with a convex shaft sliding plate 29, the electric turntable 28 and the convex shaft sliding plate 29 are rotatably connected through the curved groove, the upper portion of the convex shaft sliding plate 29 is slidably connected with a right-angle groove plate 210, the upper portion of the right-angle groove plate 210 is fixedly connected with a suction ring pad 211, the outside of the suction ring pad 211 is sleeved with an assembled blocking shell 212, the suction ring pad 211 is funnel-shaped with the upper portion being wide and the lower portion being narrow, the surface of the suction ring pad 211 is provided with a light-absorbing coating, and the height of the suction ring pad 211 and the assembled blocking shell 212 away from the rotating point side of the bearing vehicle body 1 and the movable bottom plate 21 is two times higher than the height of the side close to the rotating point.

[0051] Specifically, when the convex shaft sliding plate 29 needs to switch from the contracted state to the expanded state, the control module 11 drives the electric turntable 28 to start rotating. Since the electric turntable 28 is rotatably connected with the movable bottom plate 21 through the abutting shaft and the arc groove, the abutting shaft will slide along the arc groove to provide stable support for the rotation of the electric turntable 28. When the electric turntable 28 rotates, the curved groove formed on the surface of the electric turntable 28 will synchronously drive the convex shaft sliding plate 29 installed inside to move. Under the guidance of the curved groove, one end of the convex shaft sliding plate 29 rotates with the turntable, and the other end slides along the right-angle groove plate 210 and expands outward. The edges of adjacent convex shaft sliding plates 29 gradually approach and cooperate with each other, and finally contract below the right-angle groove plate 210. Through the cooperation between the right-angle groove plate 210 and the convex shaft sliding plate 29, a circular hole-shaped shooting hole with a diameter suitable for the outer diameter of the detector 12 is formed outside the detector 12, and the expansion action is completed.

[0052] The height of the suction ring pad 211 and the assembled blocking shell 212 away from the rotating point side of the bearing vehicle body 1 and the movable bottom plate 21 is two times higher than the height of the side close to the rotating point, and the height ratio is two to one. This design can specifically block stray light in the detection direction. Since the detector 12 and the photovoltaic module 13 maintain the same inclination angle, the light on the side close to the rotating point is more likely to be incident from below (such as ground reflected light) during detection, while the light on the side away from the rotating point may be disturbed by the ambient light from above (such as direct sunlight). The higher side can effectively block the strong light from above, and the lower side can avoid excessive blocking to cause insufficient light in the detection area. At the same time, in cooperation with the light-absorbing coating on the surface of the suction ring pad 211, scattered light can be further absorbed to reduce the influence of glare on imaging.

[0053] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A topology connection detection device for a distributed photovoltaic power station, used for connection detection of photovoltaic modules (13), comprising a carrier vehicle (1), wherein a detection instrument (12) is installed inside the carrier vehicle (1), characterized in that: The detector (12) is provided with a stable detection mechanism (2) on its exterior. The stable detection mechanism (2) includes a movable base plate (21), which is movably connected to the interior of the carrier vehicle body (1). A drive cylinder (26) is installed below the movable base plate (21), and several convex shaft slide plates (29) are installed above the detector (12). The device adopts a hidden storage and step-by-step calibration detection method. Several of the convex shaft sliding plates (29) are initially in a retracted state to hide the detector (12) inside the carrier vehicle (1). When the detector (12) performs the detection process, the drive cylinder (26) drives the control movable base plate (21) to rotate, so that the tilt angle of the detector (12) is consistent with that of the photovoltaic module (13), and the horizontal angle is calibrated. Subsequently, several of the convex shaft sliding plates (29) switch from the retracted state to the expanded state, forming a circular hole-shaped shooting hole on the outside of the detector (12) that matches its outer diameter, so that the detector (12) is completely aligned with the area to be inspected in the vertical direction, and the vertical angle is calibrated. The lower surface of the movable base plate (21) is uniformly fixed with cylindrical convex shafts (22), and a stabilizing frame (23) is installed below the movable base plate (21). The part of the stabilizing frame (23) near the cylindrical convex shaft (22) is a sloping trapezoid. The interior of the cylindrical convex shaft (22) is hollow and contains an aqueous solution. The movable base plate (21) is fixedly connected to a limiting clamp plate (27) above one of the rotation points of the carrier body (1). An electric turntable (28) is rotatably connected inside the limiting clamp plate (27). A bearing is fixedly connected to the lower surface of the electric turntable (28). An arc groove is opened on the upper surface of the movable base plate (21) at the position corresponding to the bearing. The electric turntable (28) and the movable base plate (21) are rotatably connected through the bearing and the arc groove. The upper surface of the electric turntable (28) is uniformly provided with bending grooves, and a convex shaft slide plate (29) is installed inside the bending groove. The electric turntable (28) and the convex shaft slide plate (29) are rotatably connected through the bending groove. A right-angle groove plate (210) is slidably connected above the convex shaft slide plate (29).

2. The topology connection detection device for a distributed photovoltaic power station according to claim 1, characterized in that: The drive cylinder (26) is located at one end away from the rotation point of the carrier body (1) and the movable base plate (21), and the output shaft end of the drive cylinder (26) is in contact with the movable base plate (21).

3. The topology connection detection device for a distributed photovoltaic power station according to claim 1, characterized in that: The lower surface of the stabilizing frame (23) is uniformly and fixedly connected with universal ball shafts (24). The end of the universal ball shaft (24) away from the stabilizing frame (23) is spherical. The stabilizing frame (23) is movably connected to the interior of the carrier body (1) through the universal ball shaft (24). The outer wall of the universal ball shaft (24) is fitted with coil springs (25). The two ends of the coil springs (25) are fixedly connected to the stabilizing frame (23) and the carrier body (1) respectively.

4. The topology connection detection device for a distributed photovoltaic power station according to claim 1, characterized in that: The cylindrical convex shafts (22) are all located on the motion path of the stabilizing frame (23), and the stabilizing frame (23) is initially located at the center position between the cylindrical convex shafts (22).

5. The topology connection detection device for a distributed photovoltaic power station according to claim 1, characterized in that: An adsorption ring pad (211) is fixedly connected above the right-angle groove plate (210), and an assembly cover (212) is sleeved on the outside of the adsorption ring pad (211).

6. The topology connection detection device for a distributed photovoltaic power station according to claim 5, characterized in that: The adsorption ring pad (211) is generally funnel-shaped with a wider top and a narrower bottom. The surface of the adsorption ring pad (211) is coated with a light-absorbing coating, and the height ratio of the adsorption ring pad (211) to the two sides of the assembly cover (212) is 1:

2.

7. The topology connection detection device for a distributed photovoltaic power station according to claim 1, characterized in that: The bottom of the carrier vehicle body (1) is equipped with a control module (11), which includes a main controller and a power supply. The control module (11) is electrically connected to the detector (12), and the drive cylinder (26) is electrically controlled by the control module (11). The photovoltaic module (13) is specifically a photovoltaic panel.

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