The recall rate and precision rate of current mobile education resource sharing methods are low, and the resource sharing time is long, so a mobile education resource sharing method based on wireless broadband connection is proposed. Ant colony algorithm was used to optimize the focused crawler, the optimized crawler was used to capture the data of mobile education resources and extract the semantic features of the captured data, and the K-means clustering algorithm was used to cluster all the data. Based on the calculation results of network centrality and network density, a wireless broadband connection is used to schedule mobile education resources to complete the sharing of mobile education resources. The experimental results show that the proposed method’s recall rate and precision rate are above 95% and 96%, and the average resource sharing time is 0.63 s. The comprehensive performance of the proposed method is better.

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Power system fault diagnosis is an important means to ensure the safe and stable operation of power system. According to the specific situation of China’s current power grid automation level, a hierarchical fault diagnosis method based on switch trip signal, protection information and fault recording information is proposed. This method can not only diagnose simple fault and complex fault, but also judge fault type and phase, and complete fault location, which provides reliable guarantee for operators to quickly remove fault and resume operation. The diagnosis method based on this principle has good application effect in simulation test.