信息技术 XINXIJISHU 2022 年第 4 期 基于 OPC method. The test results show that the communication efficiency of the power monitoring system designed , in this paper can be guaranteed whether it is between instruments and OPC server or between OPC client , , , and OPC server. In addition the detection and warning accuracy precision recall rate and false positive of the method used in the network security risk early warning platform of power monitoring system are higher , than those of support vector machine and naive Bayes method which has detection advantages and can ob- tain stable detection results. � � � � Key words OPC technology power monitoring system network security risk early warning platform 3D � warning grid model 3D convolutional neural network , 0 引 言