摘要
为了解决变电站信息综合传输中的流量冲突问题,提出了依据实时侦测的网络资源状况信息,对站内传输的各类数据信息进行有效的流量控制,使系统在充分利用网络资源的情况下,能对不同服务质量(QoS)要求的信息业务提供不同的服务带宽,实现信息的综合传输。阐述了变电站信息源端自侦测的流量控制原理:采用扩展Ping方式采集网络资源状况信息;并通过简单统计算法对采集数据进行实时分析,做出网络资源状况评估;依据资源状况评估等级,变电站中各信息源端依据业务类型的QoS分级实施相应的流量控制措施。实例系统仿真结果表明,该方式可以有效地解决变电站信息综合传输中的各类数据业务流量冲突的问题,保障敏感信息的可靠实时传输。
In order to solve the problem of flow collision in substation integrative information transmission, this paper proposes a flow control system, which can provide different QoS's according to the information gathered in real-time inspection on the network resources. The theory of flow control through self-inspection at the substation source terminal is elaborated. First, information on network resources is gathered through Ex-Ping. Next, the data gathered are analyzed with some simple statistic algorithms, and results of network resource estimation are given. According to the estimation, some flow control measures should be taken at substation information source terminals. The simulation of the system indicates that the application of the flow control system can effectively solve the data flow collision in limited network resources and reliable real-time integrative transmission of substation information can be guaranteed.
出处
《电力系统自动化》
EI
CSCD
北大核心
2003年第24期40-44,共5页
Automation of Electric Power Systems
关键词
电力系统自动化
变电站
综合传输
网络资源侦测
扩展Ping方式
流量控制
Algorithms
Automation
Computer simulation
Data communication systems
Flow control
Real time systems
Resource allocation
Statistical methods
