Research On Resource Management Model Of Internet Of Things Based On OCF

With the continuous innovation and development of IoT technologies such as sensor networks,embedded technologies and wireless communication technologies,the Internet of Things has gradually become more mature,more and more equipment access to the Internet of things.Most of the Internet of Things device services design their architecture by using SOA(Service-Oriented Architecture)at present.In that case,different manufacturers use different business interfaces,with the poor compatibility,and resulting in the isolation of Internet of Things applications.Meanwhile,most of the Internet of Things equipment is limited by its power,memory and CPU,and the SOA-based Web services places a heavy burden on IoT devices.The ROA(Resource-Oriented Architecture)greatly reduces the complexity of designing an IoT system architecture and improves the interoperability of devices,applications and services.The Open Connectivity Foundation(OCF)standard specifies actual IoT devices based on RESTful resource representations to enable interoperability between protocols.The purpose of this paper is to propose a resource management model based on OCF protocol.The main work is as follows:First of all,based on the local area network's IoT communication process,we compares the advantages between service-oriented architecture and resource-oriented architecture and the performance of ROA architecture under IoT application is analyzed and we get the conclusion that ROA is more suitable for the IoT application scenarios with many resource-constrained devices.And the restricted application protocol CoAP and the Internet of Things application framework OCF protocol were analyzed under the ROA architecture.Then,a kind of IoT resource management network model is designed based on the OCF standard framework.Based on the ECC elliptic curve encryption algorithm and the AES encryption algorithm,a triple-key security management algorithm is designed.For reducing resource caching,Retrieval and a series of operation time complexity and enhancing the response rate of the device,a resource skipList is designed and used for storing resources.In the aspect of constrained device,we put forward a kind of dormancy awakening mechanism to reduce the system power consumption.Finally,we set up a complete IoT resource management model,and realize data transmission and resource operations between nodes.And do a detailed analysis of the triple-key security management algorithm,resource skipList storage and wake-up mechanism.