心跳包在核电仪控网络安全性设计中的研究

Research on Heartbeat Packet Applied in the Safety Design of Nuclear Power Instrument Control Network

随着核电仪控网络对安全性要求越来越高,提出了一种心跳包模型。在不降低通信速度和增加网络负担的情况下,利用接收到的心跳包数据,判断网络节点间的连接状况,可提高总线网络通信的安全性。通过对仪控网络进行测试表明,该模型能够检测出标准IEC 61784-3中规定的多种威胁核电仪控网络安全的故障,有效提升了网络的安全性。

In order to meet the safety requirements for instrument control network of nuclear power become higher and higher, a heartbeat model is proposed. Without sacrificing communication speed and network burden, by using the received heartbeatdata, the connection condition between network nodes is judged, the safety of communication of bus network is improved. Through testing the instrument and control network, it is indicated that this model can detect various faults specified in the standard of IRC61784 -3, that are threatening the security of instrument control network of nuclear power, and effectively enhance the security of the network.