项目名称: 基于“萤火虫同步”的无线传感网络分布式时间同步技术
项目编号: No.61202433
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 计算机科学学科
项目作者: 宋萍
作者单位: 北京理工大学
项目金额: 25万元
中文摘要: 本课题针对传统无线传感器网络集中式时间同步算法在多跳时存在的同步误差累积大、可扩展性和抗毁性差等问题,探索一种基于"萤火虫同步"的无线传感器网络分布式协同时间同步方法,研究其在网络耦合延迟条件下的无线传感器网络模型的建立、同步算法实现等问题,并在已有的多节点无线传感器网络测试平台上进行同步数学模型以及同步算法的交互式校验、修正以及优化,以期为无线传感器测试网络提供统一的时间基准,对无线测试数据时间相关性建立以及测试场重建提供稳定可靠的时间同步服务。
中文关键词: 无线传感器网络模型;时间同步;萤火虫同步;同步验证平台;
英文摘要: The main purpose of this topic is to explore a "firefly synchronization"based wireless sensor network distributed cooperative time synchronization approach for the disadvantage of synchronization error accumulating, lack of scalability and invulnerability in traditional centralize time synchronization algorithm. The research work focus on the establishing of wireless sensor network model in network pulse-coupled delay condition, the implementation of firefly time synchronization algorithm and so on. Besides, the interactive verification, modification and optimization of synchronzation model and and algorithm will be tested in the testbed we have built, it is hoped to establishe a uniform time sacle for wireless sensor measurement network. Moreover, it is hoped to provide stable and reliable time service such as establishing time relationship for wireless measurement data and reconstruction of measurement field.
英文关键词: wireless sensor network model;synchronization;firefly-inspiring;synch testbench;