Abstract: A method for determining a spatial relationship, includes: obtaining a calculation request for the spatial relationship, the calculation request including a polygonal region and a set of report points; determining a plurality of first coded values corresponding to the polygonal region; determining a plurality of second coded values corresponding to the set of report points and a group of report points corresponding to each of the plurality of second coded values; determining a second coded value matching each of the plurality of first coded values by sorting and matching the plurality of first coded values and the plurality of second coded values respectively; and determining a relationship between the polygonal region and each report point in the set of report points according to a group of report points corresponding to the second coded value matching each of the plurality of first coded values.

Abstract: The present disclosure relates to a method and system for testing weather resistance of a photovoltaic module.

Abstract: The present disclosure relates to a method and system for testing mechanical tolerance of a photovoltaic module. The method include sequential steps of: according to a predetermined appearance inspection standard, performing an appearance defect inspection on the photovoltaic module; testing a light attenuation rate of the photovoltaic module, and when the light attenuation rate is smaller than a predetermined attenuation threshold, under a predetermined test condition, checking an output power of the photovoltaic module; performing a mechanical tolerance test on the photovoltaic module; according to the appearance inspection standard, performing an appearance defect inspection on the photovoltaic module; checking the output power of the photovoltaic module under the predetermined test condition; and ending testing of the mechanical tolerance.