电力调度大屏幕显示延迟问题研究与应用

针对华东电力调度中心数据采集与监控（SCADA）系统实时数据在大屏幕上的显示延迟问题，分析了数据流从数据采集到大屏幕显示的各个环节，对其存在的瓶颈从2个方面进行处理:一方面是控制数据流量，即减少单位时间内送至大屏幕的数据量（称之为节流）;另一方面是软、硬件升级，即对于数据流传输中瓶颈部分的软、硬件进行升级或优化以消除其对实时数据流的影响（称之为开源）。试验证明，通过修改相关参数，SCADA服务器发至大屏幕客户端的消息队列中消息数据的个数减少约76%，同时在硬件性能指标上有了更多的选择。经实际应用表明，同时考虑这2个方面既可满足调度员的正常使用，又可节省软硬件升级的费用。

Investigation and Application of Power Dispatching Display Delay on the Large Screen

In order to solve the display delays on the large screen of SCADA real-time data,an analysis is made of the data flow from data collecting to large screen display,with the existing bottleneck of display delay found and handled in two aspects,one to control the data flow traffic(or what is called cutting expenditure),and the other to upgrade software and hardware(or what is called increasing revenue).The experiment results show that by revising the relevant parameters,the number of data sent by the SCADA ser...