基于安全性的无线传感器网络时钟同步算法研究

Research on security-based clock synchronization algorithm for wireless sensor network

无线传感器网络存储能力不高,导致以往提出的无线传感器网络时钟同步算法的安全性能不高、同步误差较大,现提出基于安全性的无线传感器网络时钟同步算法。基于安全性的无线传感器网络时钟同步系统中的父节点构建无线传感器网络和子节点,子节点通过与父节点进行数据交互,平衡无线传感器网络时钟同步,CC2530芯片将父节点和子节点进行连接。无线传感器网络时钟同步的运算工作在仿真器中完成,传输接口将父节点和子节点的交互信息输出到仿真器,为运算工作提供数据仿真源。安全性调试接口对父节点构建网络结果和时钟同步运算结果进行实时展示。系统对同步安全算法和同步算法语言的设计,较为有效地实现了无线传感器网络时钟同步。经实验验证可知,所提算法同步误差小,安全性能高。

Since the previously?proposed clock synchronization algorithms for wireless sensor network have poor safety performance and big synchronization error due to the poor storage capacity of the wireless sensor network,a security?based clock synchronization algorithm for wireless sensor network is proposed. The father node in the system is used to construct the wireless sensor network and child nodes. The data of the child nodes is interacted through the father node to balance the clock synchronization of the wireless sensor network. The chip CC2530 is adopted to connect the father node with the child nodes. The operationof the wireless sensor network clock synchronization is accomplished in the simulator. The mutual information of the father nodeand child nodes is output to the simulator through the transmission interface to provide the data simulation source for operation.The realtime display for the network results constructed by the father node and clock synchronization operation results were realized with the security debugging interface. The synchronization security algorithm and synchronization algorithm language were designed to implement the clock synchronization of the wireless sensor network. The results of the experimental verification show that the algorithm has small error and high safety.