CoAP Protocol Communication Mapping for Power Distribution Internet of Things Based on IEC 61850

The power distribution internet of things (IoT) needs to solve the interconnection and interoperation problems when large-scale perception layer devices are connected. CoAP protocol is the most widely used protocol for the perception layer. The use of IEC 61850 can solve the interconnection, interoperability and interoperability issues of the power distribution IoT. After the abstract communication service interface (ACSI) subset is determined by analyzing the requirements, the direct mapping strategy is adopted to construct the method of CoAP protocol to realize the IEC 61850 services. According to the characteristics of the CoAP protocol, the resource access method is designed. By comparing the coding efficiency and resource consumption, the data coding method is determined. Based on the test platform, the real-time performance is tested. The test results show the effectiveness of the proposed method.