船舶监控红外图像处理中多通道SDN控制器改进设计  

Improved design of multi-channel SDN controller in infrared image processing of ship monitoring

作　　者：王璐烽[1] WANG Lu-feng(Chongqing Industrial Vocational and Technical College,Chongqing 400050,China)

机构地区：[1]重庆工业职业技术学院,重庆400050

出　　处：《舰船科学技术》2021年第20期196-198,共3页Ship Science and Technology

基　　金：中国职业技术教育学会2019-2020职教教改课题(1910703);重庆市高等教育教学改革研究重点项目(202170)

摘　　要：多通道图像调度过程中,受到网络链路带宽计算结果的影响,使得控制器面对大量数据流时收敛速度较慢。因此,提出船舶监控红外图像处理中多通道SDN控制器改进设计。基于负载均衡技术,建立多通道SDN架构。度量链路层面的影响因子,计算SDN网络中所有链路可用带宽。采用PSTS算法,根据链路可用带宽为不同路径分配权重,完成图像传输链路的排序和筛选。通过OpenFlow协议连接交换机,实现多通道SDN控制器整体改进。实验结果表明:在动态负载环境下,所提出的多通道SDN控制器改进方法,与文献[1-3]提出的方法相比,收敛速度提升了64%,57%和43%,大大提升了控制器的负载均衡性能。In the process of multi-channel image scheduling,affected by the calculation results of network link bandwidth,the convergence speed of the controller is slow when facing a large number of data streams.Therefore,an improved design of multi-channel SDN controller in ship monitoring infrared image processing is proposed.Based on load balancing technology,a multi-channel SDN architecture is established.Measure the impact factor at the link level and calculate the available bandwidth of all links in the SDN network.PSTS algorithm is used to assign weights to different paths according to the available bandwidth of the link to complete the sorting and screening of image transmission links.The switch is connected through openflow protocol to realize the overall improvement of multi-channel SDN controller.The experimental results show that in the dynamic load environment,compared with the methods proposed in literature [1],literature [2] and literature [3],the convergence speed of the proposed multi-channel SDN controller is improved by 64%,57% and 43%,which greatly improves the load balancing performance of the controller.

关 键 词：船舶 红外图像 多通道 软件定义网络 SDN控制器 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]