目的 研究一种面向远程医疗的覆盖网络(Overlay Network for Telemedicine,ONTM)模型,以改善传统互联网无法完全满足远程医疗服务多样化服务质量的难题.方法 基于覆盖网络的架构建立ONTM模型,并分为控制平面和数据平面,负责整体的策略调控和网络传输.在ONTM模型的接入侧采用多链路聚合策略,同时将其传输层进一步细分为信源/信道传输子层.使用网络监控软件测试终端之间的网络性能参数.结果 基于ONTM模型的新型远程医疗系统累计完成了超过10000次的远程医疗服务,涵盖了15个临床科室.在ONTM模型的调控下,5G远程大脑起搏器手术期间北京到三亚的平均延时低至76 ms,丢包率几乎为0,流量稳定在10 Mbps,优于通用5G网络.结论 ONTM模型能够保证远程医疗数据的稳定传输,可为特殊环境下开展远程医疗提供新思路.
Research and Application of Overlay Network for Telemedicine Model
Objective To study an overlay network for telemedicine(ONTM)model in order to improve the problem that the traditional internet can not fully meet the diversified service quality of telemedicine services.Methods The ONTM model was established based on the architecture of overlay network,which was divided into control plane and data plane,and was responsible for the overall policy regulation and network transmission.A multilink aggregation strategy was used on the access side of ONTM model,and the transport layer was further subdivided into a source/channel transport sublayer.Network monitoring software was used to test the network performance parameters of models between terminals.Results The novel telemedicine system based on ONTM model has completed more than 10000 telemedicine services,covering 15 clinical departments.Under the control of ONTM model,the average delay from Beijing to Sanya during the operation of 5G remote brain pacemaker surgery was 76 ms,the packet loss rate was mostly 0,and the transmission traffic was stable at 10 Mbps,which was superior to the general 5G network.Conclusion The ONTM model can ensure the stable transmission of telemedicine data and provide a new idea for telemedicine in special environment.
telemedicineoverlay networkquality of servicetelesurgery
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