摘要：The concurrent presence of different types of traffic in multimedia applications might aggravate a burden on the underlying data network, which is bound to affect the transmission quality of the specified traffic. Recently, several proposals for fulfilling the quality of service(QoS) guarantees have been presented. However, they can only support coarse-grained QoS with no guarantee of throughput, jitter, delay or loss rate for different applications. To address these more challenging problems, an adaptive scheduling algorithm for Parallel data Processing with Multiple Feedback(PPMF) queues based on software defined networks(SDN) is proposed in this paper, which can guarantee the quality of service of high priority traffic in multimedia applications. PPMF combines the queue bandwidth feedback mechanism to realise the automatic adjustment of the queue bandwidth according to the priority of the packet and network conditions, which can effectively solve the problem of network congestion that has been experienced by some queues for a long time. Experimental results show PPMF significantly outperforms other existing scheduling approaches in achieving 35--80% improvement on average time delay by adjusting the bandwidth adaptively, thus ensuring the transmission quality of the specified traffic and avoiding effectively network congestion.

摘要：设计并实现基于告警自动触发的高校智能客服系统,创新性地把目前高校现有的IT运维系统和工单流程系统进行联动.基于故障告警自动触发工单任务,将其与宿舍管理系统和房屋管理系统进行数据互通,实现工单内容自动填写的功能.此外,通过主动方式联系用户,实现在用户还没有察觉到网络故障时已经帮助其解决故障并进行电话回访的功能.这种通过信息化手段主动的客户服务方式既能提高解决用户故障的效率,也能大大降低运维人员的工作负担.同时,师生的信息网络服务体验也将得到极大的提升.

摘要：按照炸药生产线原料供给要求,分析了硝铵储罐的控制方式,将模糊控制技术引入到硝铵溶液储罐加温控制;根据模糊控制器的原理、结构,设计了基于PLC和嵌入式MCGS触摸屏的模糊控制器。试用结果证明,模糊控制较传统的PID加温控制方式效果更好。