The increasingly large server clusters of state grid corporation generate a large amount of production operation data,and real-time analysis of the massive monitoring data generated by various devices and systems has become a new challenge in power IT operation and maintenance work.As a key technology of intelligent grid information operation and maintenance work,anomaly detection technolo-gy can effectively detect operation and maintenance faults and provide timely alarms to avoid damage to sensitive equipment.Currently,some traditional anomaly detection methods have few types of anoma-lies and low precision,resulting in delayed fault detection.To address this challenge,this article propo-ses a multi-dimensional time series anomaly detection method based on capsule networks,NNCapsNet.Firstly,the unsupervised algorithm is applied in combination with expert knowledge to preprocess and label the performance monitoring data of grid marketing business application servers.Secondly,the cap-sule network is introduced for classification and anomaly detection.Experimental results obtained through five-fold cross-validation show that NNCapsNet achieves an average classification accuracy of 91.21%on a dataset containing 15 types of anomalies.At the same time,compared with four bench-mark models on the dataset containing 20 000 monitoring data,NNCapsNet achieves good results in key evaluation indicators.
关键词
监测数据/电力IT运维/异常检测/胶囊网络/多维时间序列分析/无监督算法
Key words
monitoring data/power IT operation and maintenance/abnormal detection/capsule net-work/multi-dimensional time series analysis/unsupervised algorithm
维普
万方数据