Photovoltaic panel hidden crack detection device and detection method
A detection device and photovoltaic panel technology, applied in the direction of using sonic/ultrasonic/infrasonic waves to analyze solids, instruments, and analytical materials, etc., can solve the problems of time-consuming and laborious, low testing efficiency, etc., and achieve high efficiency, high convenience, and simple operation. Effect
Pending Publication Date: 2021-05-28
NORTHEAST DIANLI UNIVERSITY
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The efficiency loss of the 45° inclined crack is 1 / 4 of the loss parallel to the busbar
However, this method requires manual handling to control the distance between the tripod, the camera and the components, for focusing, shooting, etc.
A total of 8 steps are required to obtain the measurement results. This method is time-consuming and laborious, resulting in low test efficiency
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[0027] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0028] see figure 1 combine figure 2 As shown, a photovoltaic panel crack detection device, the device includes a data receiving module 1, an ultrasonic generating device, including 12 ultrasonic probes in the ultrasonic generating device, divided into 6 transmitting probes 2, 6 receiving probes 3, and PC. The transmitting probe is installed at the front end of the photovoltaic panel cleaning robot 4 in the forward direction, and the receiving probe is installed at the rear end of the photovoltaic panel cleaning robot in the forward direction. The data receiving module is connected with the receiving probe to collect th...
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The invention belongs to the field of photovoltaic panel hidden crack detection, and relates to a photovoltaic panel hidden crack detection device and a photovoltaic panel hidden crack detection method. The device comprises an ultrasonic wave generation module, a data receiving module, and an upper computer; the ultrasonic wave generation module includes a plurality of transmitting probes and receiving probes, the number of the receiving probes corresponds to that of the transmitting probes, the transmitting probes are installed at the front end of the advancing direction of a photovoltaic panel cleaning robot, and the receiving probes are installed at the rear end of the advancing direction of the photovoltaic panel cleaning robot; the data receiving module is connected with the receiving probes and is used for collecting reflected ultrasonic waves detected by the receiving probes; and the upper computer controls the ultrasonic wave generation module to emit ultrasonic waves, receives and stores the reflected ultrasonic waves of the data receiving module, and takes amplitude change points at the waveform amplitude change positions of ultrasonic wave echoes for fitting according to the waveform echo time and amplitude so as to form an image of the photovoltaic panel crack. The hidden cracks on the photovoltaic panel can be effectively and rapidly detected, and the detection is very convenient and rapid. Therefore, the device and the method can be applied to the photovoltaic panel cleaning robot for detecting whether hidden cracks exist on the photovoltaic panel or not.
Description
technical field [0001] The invention belongs to the field of detection of hidden cracks in photovoltaic panels, and in particular relates to a detection device and method for hidden cracks in photovoltaic panels. Background technique [0002] As solar energy has gradually become an important part of new energy, the quality and reliability of photovoltaic module products have received great attention. The crack problem is a problem discovered in the operation of photovoltaic power plants in recent years. Due to its own crystal structure, crystalline silicon modules are very prone to cracking, and crystalline silicon cells tend to be thinner, which reduces the ability of components to prevent mechanical damage and is more prone to cracks. Hidden crack. Subtle cracks in the components will reduce the efficiency, reliability and service life of the components, and even the stability of the photovoltaic system. [0003] The research results show that 50% of the failed cells com...
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Login to View More IPC IPC(8): G01N29/04
CPCG01N29/04G01N2291/023
Inventor 曹生现白天洋杜官峰王恭张叶何俊博
Owner NORTHEAST DIANLI UNIVERSITY