发明名称 |
METHOD FOR APPLYING AND DESIGNING FULL-DUPLEX FAST ETHERNET SYSTEM AND TOKEN RING MEDIUM CONTROL SYSTEM TO RING TYPE COMMUNICATION NETWORK |
摘要 |
PURPOSE: A method for applying and designing a full-duplex fast Ethernet system and token ring medium control system to a ring type communication network is provided to reduce a maintenance cost and satisfy time characteristics and stability of data of an industrial site. CONSTITUTION: A fast Ethernet is used at a physical layer in order to reduce a maintenance cost of a communication network, and each node is connected by a full-duplex fast Ethernet in order to make a ring type topology. Each node includes a frame transmitter and receiver in order to reduce token processing time. When a token is received, each node transmits data desired to be transmitted. Each node uses an Ethernet of a full-duplex system and indicates a token frame by using a type/length field of an Ethernet frame. Each node has a transmission authority, that is, a token, in a predetermined order, and when each node obtains a token, it transmits data. The transmitted data is broadcast to an entire communication network, and accordingly, each node has information of the entire communication network. Each node becomes a transmission state only when it obtains the token.
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申请公布号 |
KR20030062473(A) |
申请公布日期 |
2003.07.28 |
申请号 |
KR20020002665 |
申请日期 |
2002.01.17 |
申请人 |
KOREA ELECTRIC POWER CORPORATION |
发明人 |
BYUN, SEUNG HYEON;CHOI, JAE YEONG;KIM, HYEONG SEOK;KWON, UK HYEON;LEE, SEONG U;MUN, BYEONG GIL;PARK, TAE RIM;SHIN, SU YONG;SONG, SEONG IL |
分类号 |
H04L12/42;(IPC1-7):H04L12/42 |
主分类号 |
H04L12/42 |
代理机构 |
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