条件轮询方法在工业无线监测网络中的应用

摘要

Wireless monitoring networks has large amount of node' s. Single node' s data quantity is not very large but transmit periodically or paroxysmal. Meanwhile, it has a high requirement on the accuracy of data network, coverage range and power consumption. Because of these features, traditional anti-collision method can' t solve collision problems. A more flexible and high efficient method, called conditional polling, is designed and implemented. In a conditional polling applied wireless monitoring networks, experimental tests show that conditional polling method is better than traditional method.%无线监测网络节点数量较多,单节点数据量较少,但需要周期性或突发地发送监测数据,对数据的准确性、网络覆盖范围和功耗等有较高的要求.这些特点使得传统的防碰撞方法无法很好地解决无线监测网络中的碰撞问题.设计并实现了一种更为灵活和高效的条件轮询防碰撞方法.在基于条件轮询方法实现的无线监测网络上,实验测试显示:条件轮询防碰撞方法明显优于传统的信道抢占方法.