CAJ | 학술논문

高可用性无缝冗余(high-availability seamless redundancy,HSR)在工业控制网络中得到广泛的应用,但复制帧会在网络中循环并转发回源节点,产生不必要的流量,这使得网络性能降低,引起网络拥塞或中断。为此,提出一种快速消除方法(quick removing,QR)来解决这个问题,当所有网络节点都已经收到发送帧的复制帧,在将要接受下一个复制帧时,将复制帧从网络中移除。通过计算,该方法能有效减少标准 HSR 网络中的多余流量,在极限情况下,可以减少近50%的多余流量。最后,用改进流量性能的 HSR网络,建立起高可靠性的数字化变电站通信网络。
고가용성무봉용여(high-availability seamless redundancy,HSR)재공업공제망락중득도엄범적응용,단복제정회재망락중순배병전발회원절점,산생불필요적류량,저사득망락성능강저,인기망락옹새혹중단。위차,제출일충쾌속소제방법(quick removing,QR)래해결저개문제,당소유망락절점도이경수도발송정적복제정,재장요접수하일개복제정시,장복제정종망락중이제。통과계산,해방법능유효감소표준 HSR 망락중적다여류량,재겁한정황하,가이감소근50%적다여류량。최후,용개진류량성능적 HSR망락,건립기고가고성적수자화변전참통신망락。
High-availability seamless redundancy is widely used in industrial control network but copy frames may be recycling in the network and returning to the originating node which is probably producing unnecessary flow,reducing network per-formance and causing jam or break-off of the network.Therefore,this paper proposes a kind of quick removing method to solve this problem that is to remove copy frames from the network when all network nodes have received copy frames of transmit frames and are going to accept another copy frame.By calculating,it proves that this method is able to effectively reduce redundant flow in standard HSR network and in limiting case,it is able to reduce about 50% redundant flow.Finally, by using HSR network with improved flow performance,it discusses establishment of high-reliability digital substation com-munication network.