Single packet broadcasting(SPB)method applied in EPA Wireless for synchronization needs a plenty of time and packets and a long macro cycle.A probability-based synchronization(PBS)method was proposed to solve the problem.PBS allocates fewer opportunities for synchronization,in which all nodes send synchronization packets with equal probability.In theory,PBS needs less time and packets to keep nodes in synchronization with the gateway,and it can reduce the macro cycle of EPA Wireless.Besides,PBS is more ener...
EPA(ethernet for plant automation)是Ether-net、TCP/IP等商用计算机通信领域的主流技术,直接应用于工业控制现场设备间的通信协议.为了适应工业控制的需要,EPA将通信过程分成多个宏周期,每个宏周期分为周期报文发送阶段和非周期报文发送阶段.在周期报文发送阶段,每个节点都?
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