A Gaussian mixture model-based evaluation method for manufacturers of collection terminals

Abstract

The invention discloses an evaluation method for a manufacturer of an acquisition terminal based on a Gaussian mixture model. The method comprises the following steps: acquiring original data of the acquisition terminal and screening evaluation indexes for measuring the acquisition terminal; Gaussian mixture model clustering algorithm is used to extract typical evaluation index data, to obtain clustering center, to form decision matrix, and to standardize them according to benefit and cost respectively. Based on the weight of AHP, entropy method, Pearson correlation coefficient method and variation coefficient method, the weights of evaluation indexes are calculated respectively, and the weights of evaluation indexes are obtained by the combination optimization model of index weights, andthe evaluation matrices of comprehensive evaluation of the collection terminal are obtained by weighting the decision matrices. The quality of the collection terminal is comprehensively evaluated by the angle measurement method, and the quality of each collection terminal supplier is sorted from high to low, and the evaluation results are obtained. It can provide support for the operation and maintenance work by using the electric power information acquisition system.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a Gaussian mixture model-based evaluation method for acquisition terminal manufacturers. Background technique [0002] Since the State Grid began to build a large-scale electricity consumption information collection system in 2011, the electricity consumption information collection system has increasingly undertaken the metering business work on the marketing side. The information sending system is the core component of the electricity consumption information collection system. Its quality directly affects the acquisition of electricity consumption information by users, and the operation and maintenance caused by its failure also wastes a lot of manpower and material resources. [0003] With the gradual expansion of the coverage of the electricity consumption information collection system, the collection objects and collection frequency have increased year by year, and various meteri...

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Problems solved by technology

[0004] Power supply units generally evaluate the operation quality of collection terminal manufacturers on the basis of some assessment indicators, and collect batches of faults reported by prefectural and city units, which is relatively rough

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