摘要
基于IEEE802.15.4协议的无线传感器网络要求其节点间的通讯距离在10m左右。可是,在一些随机组网的应用场合,我们发现,一方面很难确保节点间的分布距离都在所要求的范围内,另一方面又要求每个传感器节点的数据必须被准确获得,这种情况下直接使用基于IEEE802.15.4协议的无线传感器网络存在问题。针对该问题,本文提出了一种功率自适应传感器网络解决方案,包括功率自适应协议、及其软硬件实现方案。基于该方案,本文利用Crossbow公司的MICAz节点构建了一个通信距离自适应、低功耗、高可靠性的传感器网络,并进行了实际测试与验证。
Wireless sensor network （WSN） conformed to IEEE802.15.4 requires that the direct distance between nodes is limited in 10m . However, we find out that IEEES02.15.4 WSN can not be directly used in some reconfigurable network applications, where it is difficult to ensure the actual distance between nodes within the required range, and, on the other hand, it is requisite to receive data from each sensor node reliably and accurately. So, this paper proposes a power auto-adaptive WSN solution, including power auto-adaptive protocol, and implementation of software and hardware. Based on the proposal, we use the MICAz nodes of Crossbow Corporation to construct WSN characterized with auto-adaptive communication distance, low power consumption and high reliability, and conduct actual test and verification.
出处
《微计算机信息》
北大核心
2008年第34期138-140,共3页
Control & Automation
