Online Evaluation Method for Carbon Performance of Coal Mines Owned by the Coal Industry Group based on Combination of Subjective and Objective Weights

An online evaluation method for carbon performance of coal mines owned by the coal industry group based on combination of subjective and objective weights is proposed. Firstly, the evaluation method for carbon performance of coal mines owned by the coal industry group based on combination of subjective and objective weights is proposed: (1) The index system of carbon performance evaluation of coal mines owned by the coal industry group is constructed. (2) The objective weight of each index is obtained by entropy weight method. (3) The subjective weight of each index is obtained by Delphi method. (4) The comprehensive weight of each index is obtained by weighted average method. (5) The score of each index of each coal mine is obtained by linear interpolation method. (6) The comprehensive evaluation score of each coal mine is obtained by weighted average method. Secondly, taking Sql server as the database management system, ASP and C# as the development language, Dreamweaver and Visual Studio as the development platform, the system of carbon performance evaluation of coal mines owned by the coal industry group based on B/S structure is designed, and the system can realize online evaluation for carbon performance of coal mines. Finally, the application analysis results show that the method can ensure the objectivity of carbon performance evaluation of coal mines, greatly improve the efficiency of evaluation, and realize sharing and comparison of the evaluation results.