无线传感器网络数据传输延时分配算法

Delay allocation algorithm for data Transmission in Wireless Sensor Networks

摘要:

为了提高箭载无线传感网络对火箭温度、冲击、热流等物理参数的处理能力,需对所采集的数据进行自适应延时分配,因此设计一种基于时隙窗口间隔均衡控制的无线传感器网络数据传输延时分配算法。构建火箭温度、振动、冲击等参数的数据采集模型,采用分布式网格均衡配置方法对无线传感器网络中的节点进行均衡部署；结合最短路径寻优方法使数据采集过程中的信道分配达到均衡,构建数据采集最短路径寻优控制模型,采用输出比特序列重组方法进行数据采集过程中的传输延迟配置；结合码元调节技术对数据传输进行自适应扩频调节,利用时隙窗口间隔均衡控制方法实现无线传感器网络数据传输延时分配。实验结果表明,采用该方法进行无线传感器网络数据传输延时分配的自适应性较好,输出稳定性较强、分配输出错误率低,有效性更强。

Abstract:

In order to improve the ability of arrow borne wireless sensor network to process physical parameters such as rocket temperature, impact and heat flow, it is necessary to carry out adaptive delay allocation of collected data. Therefore, a data transmission delay allocation algorithm of wireless sensor network based on time-gap window interval balance control is designed. The data acquisition model of rocket temperature, vibration, impact and other parameters was constructed, and the nodes in wireless sensor network were balanced and deployed by distributed grid balanced configuration method. In combination with the shortest path optimization method, the channel allocation in the data acquisition process is balanced, and the optimal control model of the shortest path for data acquisition is constructed. Data transmission is adaptive spread spectrum adjustment based on symbol adjustment technology and data transmission delay allocation in wireless sensor network is realized by using time-gap window interval balance control method. The experimental results show that this method has good adaptability, strong output stability, low error rate and better effectiveness.