| With the increasingly wide application of IoT(Internet of Things),the number of the IoT sensor nodes is growing explosively.Because of the constraint troubles such as the run out of IP address,the difficulty in guarantee the quality of service,the great threaten of security etc..,the global Internet based on IPv4 address has been far from meeting the demands of the IoT developing.IPv6 has been the next-generation commercial solutions of the IoT recognized by international,which can provide sufficient network address and broad innovation space for the IoT.IPv6 sensor node devices are provided with a global unique identifier of the lifelong when they were manufactured,and it will be extremely difficult to centrally manage the vast amount of sensor node identifier information which assigned IPv6 address communication identifier,when connect to the IPv6 network.Based on an in-depth study of a series of sensor node identifier and IPv6 related standards,this thesis highlights a hierarchical management framework for IPv6 sensor node identifier,designs and implements a management system prototype in the lab,it solves the puzzle of the sensor node equipment manufacturers and the users manage sensor node identifier scattered and disordered,and realise a series of management functions for registering,obtaining and parsing IPv6 IoT sensor node identifier.The main research work and innovations of this thesis are described as follows:1.By studying a series of related technologies and standards of IoT sensor nodes identifier based on IPv6,this thesis chooses OID as an identifier of sensor node.the management requirements of IoT sensor nodes identifier based on IPv6 is analyzed.An identifier management system based on sensor node identifier management organization and hierarchical management of sensor node manufacturers and users is established.A system architecture is designed which functional and role responsibilities of each element in the system is also defined.2.A first-level management system platform of IoT sensor node identifier based on IPv6 is designed and implemented.It provides OID registration of sensor nodes,analytical management function,and management of server information registration between two manufacture users of sensor nodes.A domain name resolution system supporting OID identifier resolution based on open source DNS code of BIND is designed.The mapping between OID of sensor node and the server domain name managed by sensor node manufacturer and user is realized.Therefore,according to users' requirements based on OID of sensor node,the address of secondary management system platform entry of sensor node identifier is found.3.A secondary management system platform of IoT sensor node identifier based on IPv6 is designed and implemented.A manufacturer-maintained server by IoT sensor node based on IPv6 is built,so it can store the OID and sensor node's inherent application attribute information.A vendor-maintained server by IoT sensor node based on IPv6 is also built,it can manage the mapping relationship between OID of sensor node and the address of sensor node based on IPv6 in IPv6 sensor network and border gateway.And the function of acquiring sensing information by the OID of sensor node is realized based on the SNMP protocol.4.The functions of each part of the prototype system of IoT sensor node identification based on IPv6 is tested and verified.The test results show that the scheme of multi-level identification management system for sensor nodes in IoT based on IPv6 proposed in this thesis is reasonable and feasible.It can realize the mapping of OID identifier of sensor nodes in IoT based on IPv6 and its IPv6 address,inherent application attribute and dynamic sensing information.At the same time,users can query and trace products node through the management system client portal by OID identity of sensor nodes in IoT based on IPv6.Part of the research results in this thesis have been drafted and submitted to the National Standards Committee. |
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