Ice-resistant capability risk assessment method and system for optical fiber composite overhead ground wire

According to the ice-resistant capability risk assessment method and system for the optical fiber composite overhead ground wire, the ice-resistant capability can be assessed in advance, and the effects of disaster early warning and prevention are achieved. The method comprises the following steps: acquiring operation parameters for describing an optical fiber composite overhead ground wire OPGW optical cable icing state, and obtaining original data of the operation parameters and corresponding parameter indexes; obtaining subjective and objective combined weights according to the subjective weights and the objective weights of the operation parameters through a combined weight method, and taking the subjective and objective combined weights as weight coefficients of the operation parameters; multiplying the original data by the weight coefficient, and performing feature extraction through a principal component analysis method to obtain a principal component value of each group of original data; obtaining an