一种低时隙开销无线HART链路调度策略  

A Low Slot Overhead Wireless HART Link Scheduling Strategy

作　　者：武峰 WU Feng(University of Shanghai for Science and Technology School of Optical-Electrical and Computer Engineering, Shanghai 20009)

机构地区：[1]上海理工大学光电信息与计算机工程学院,上海200093

出　　处：《软件》2018年第3期170-174,共5页Software

摘　　要：无线HART是一种适用于工业现场的无线传感网络。无线HART采用基于TDMA的超帧技术来统一安排网络中的资源调度,并实现网络内的通信冲突避免。本文基于无线HART的mesh型网络拓扑结构,提出一种低时隙开销的无线HART资源调度策略(LCLSS),使用较少的时隙资源开销来完成对网络中所有链路的调度安排。该策略通过对传输路径的合理选择,时隙资源的充分利用,降低了网络的传输所用的时隙资源,同时对提高网络吞吐量也有所帮助。测试表明,该策略有效的降低了网络传输所使用的时隙资源开销,提高了超帧资源的使用效率。Wireless HART is a wireless sensor network for industrial applications. Wireless HART uses TDMA-based super-frame technology to uniformly arrange resource scheduling in the network and to avoid communication conflicts in the network. In this paper, based on the mesh network topology of Wireless HART, a low-slot overhead wireless HART resource scheduling strategy（LCLSS） is proposed. This strategy can schedule all the links in the network with less slot resource overhead. Through the reasonable choice of the transmission path and the full utilization of slot resources, this strategy reduces the slot resources used in the transmission of the network and improves the network throughput. The test shows that this strategy effectively reduces the slot resource overhead used by network transmission and improves the efficiency of using super-frame resources.

关 键 词：无线HART TDMA 链路调度 超帧技术 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]