摘要
分析了ZigBee接入EPA的网络模型,并针对节点需要周期性发送数据的特定无线传感器网络应用,提出了基于周期性的消息调度算法。该算法通过采用令牌和轮询相结合的集中式消息调度模型,构建节点周期性消息发送调度机制,保证节点之间无冲突地使用无线信道,是一个确定性的消息调度机制。该算法已应用于ZigBee-EPA接入点,实际运行良好,具有较好的性能。
This paper analyzes the net model of the ZigBee-EPA accessing point,and proposed the Periodic scheduling algorithm for the wireless sensor which transmit data periodic.This algorithm is a point coordination accessing method which is based on the Poll algorithm.Through of using the token and static time-pieces we improve the Poll algorithm,and these wireless points can using the wireless channel to access the ZigBee-EPA accessing point in different time without confliction,lt＇s a confirmed scheduling algorithm which is important for the industry communication.This algorithm have been used in the ZigBee-EPA accessing point,and performs very well.
出处
《工业控制计算机》
2007年第11期3-4,6,共3页
Industrial Control Computer
