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公开(公告)号：US4777330A
公开(公告)日：1988-10-11
申请号：US104530
申请日：1987-10-01
申请人： Susumu Nakayashiki , Takeshi Harakawa , Yoshinori Bekki , Hiroyuki Wada , Masahiro Fuse , Hiroshi Nakase , Osamu Ebina , Jiro Kashio
发明人： Susumu Nakayashiki , Takeshi Harakawa , Yoshinori Bekki , Hiroyuki Wada , Masahiro Fuse , Hiroshi Nakase , Osamu Ebina , Jiro Kashio
IPC分类号： H04L12/437 , H04B3/46
CPC分类号： H04L12/437
摘要： A station diagnosis method in a communications network system including a closed ring transmission line and a plurality of data stations which can be connected to the ring transmission line by a plurality of line concentrators disposed in the ring transmission line wherein an internal ring transmission line is formed in the line concentrators so that the operation states of the line concentrators are diagnosed by transmitting diagnosis data through the internal ring transmission line.
摘要翻译： 一种通信网络系统中的站诊断方法，包括闭环传输线和多个数据站，所述多个数据站可以通过设置在所述环形传输线中的多个集线器连接到环形传输线，其中形成内部环形传输线 在集线器中通过内部环形传输线传送诊断数据来诊断集线器的运行状态。
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公开(公告)号：US4899142A
公开(公告)日：1990-02-06
申请号：US46031
申请日：1987-05-04
IPC分类号： H04L12/437
CPC分类号： H04L12/437
摘要： A ring network system in which a plurality of line concentrators each having terminal stations connected thereto through respective branch lines are interconnected through at least one ring transmission lines. Each line concentrator includes configuration control switches capable of disconnecting from the ring transmission line all the branch lines placed under control of the line concentrator while holding the ring transmission line in the state to allow communication. The branch line(s) disconnected from the ring transmission line form(s) a local ring through cooperation with an internal transmission line. The line concentrator detected abnormality of communication or the line concentrator to be set to the rest state can undergo internal diagnosis operation or continue to be in the rest state without disturbing the communication among other line concentrators. At activation of the line concentrators, any of them may be activated arbitrarily and independently from each other by again connecting the branch lines to the ring transmission lines.
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公开(公告)号：US4763315A
公开(公告)日：1988-08-09
申请号：US826255
申请日：1986-02-05
IPC分类号： H04L12/437 , H04J3/14
CPC分类号： H04L12/437
摘要： In a communication network having a plurality of stations interconnected through a double ring transmission line, a station which detects a failure in the ring transmission line sends out a failure notice data, and a station which has received the failure notice data stops the send-out of its own data and relays the received data. A station which cannot receive the failure notice data loops back and transmission line to form a closed ring transmission line which bypasses a failure location.
摘要翻译： 在具有通过双环传输线互连的多个站的通信网络中，检测环形传输线路中的故障的站发送故障通知数据，并且已经接收到故障通知数据的站停止发送 的数据并中继接收到的数据。 无法接收故障通知数据的站回送并传输线路，形成绕过故障位置的闭环传输线路。
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公开(公告)号：US4815069A
公开(公告)日：1989-03-21
申请号：US171698
申请日：1988-03-22
IPC分类号： H04L12/437 , H04J3/14
CPC分类号： H04L12/437
摘要： In a communication system having first and second ring transmission lines for connecting a plurality of stations and for providing opposite signal transmission direction, a first station, which is located just downstream side of an failure point occurred in the first transmission line, sends out a beacon signal along said first transmission line while causing an intentional failure in the second transmission line on its downstream side and a second station, which is located just upstream side of the failure point on the first transmission line, forms a first loop-back path (WRAPA) by detecting the intentional failure on the second transmission line if the second station has received the beacon signal. The first station forms a second loop-back path (WRAPB) by receiving the beacon from the second transmission line which is sent back by the second station.
摘要翻译： 在具有用于连接多个站并且用于提供相反的信号传输方向的第一和第二环形传输线的通信系统中，位于第一传输线路中发生的故障点正好的下游侧的第一站发送信标 信号沿着所述第一传输线路，同时在其下游侧的第二传输线路中引起故意故障，并且位于第一传输线路上故障点正上游侧的第二站点形成第一环回路径（WRAPA ），如果第二站已经接收到信标信号，则通过检测第二传输线上的故意故障。 第一站通过从第二站发回的第二传输线接收信标形成第二环回路径（WRAPB）。
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公开(公告)号：US4672607A
公开(公告)日：1987-06-09
申请号：US755015
申请日：1985-07-15
CPC分类号： H04L12/4637
摘要： A local area network communication system in which a repeating installation sets a ring number of a ring from which a communication frame was taken out as a source address of the frame. The repeating installation also sets a ring number of a ring to which a communication frame is to be sent. When a station receives the frame, the station checks the source address of the frame to identify the ring number of the ring to which the source station belongs and checks the destination address to identify the ring number of the ring to which the station itself belongs.
摘要翻译： 一种局域网通信系统，其中重复设置将从其取出通信帧的环的环号设置为帧的源地址。 重复安装还设置要发送通信帧的环的环号。 当站接收到帧时，站检查帧的源地址以识别源站所属的环的环号，并检查目的地址以识别站本身所属的环的环号。
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公开(公告)号：US5023871A
公开(公告)日：1991-06-11
申请号：US343901
申请日：1989-04-27
IPC分类号： H04J3/06 , H04L12/433
CPC分类号： H04L12/433
摘要： In a distributed network formed of communication stations having equal control functions, each station which sends a master station (or Active Monitor) determination frame appends a unique identifier to the frame, and each station which receives a frame judges the rationality of the received frame based on the identifier thereby to determine the operation of the self station depending on the result of judgement.
摘要翻译： 在由具有相同控制功能的通信站形成的分布式网络中，发送主站（或主动监视器）确定帧的每个站向帧附加唯一标识符，并且接收帧的每个站基于接收到的帧的合理性来判断 在标识符上，从而根据判断结果确定自身站的操作。
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公开(公告)号：US4887256A
公开(公告)日：1989-12-12
申请号：US291308
申请日：1988-12-28
IPC分类号： H04L12/437
CPC分类号： H04L12/437
摘要： In a communication system having first and second ring transmission lines for connecting a plurality of stations and for providing opposite signal transmission direction, a first station, which is located just downstream side of a failure point occurred in the first transmission line, sends out a beacon signal along said first transmission line while causing an intentional failure in the second transmission line on its downstream side and a second station, which is located just upstream side of the failure point on the first transmission line, forms a first loop-back path (WRAPA) by detecting the intentional failure on the second transmission line if the second station has received the beacon signal. The first station forms a second loop-back path (WRAPB) by receiving the beacon from the second transmission line which is sent back by the second station.
摘要翻译： 在具有用于连接多个站的第一和第二环形传输线并用于提供相反的信号传输方向的通信系统中，位于第一传输线路中出现的故障点正好位于第一站的第一站发送信标 信号沿着所述第一传输线路，同时在其下游侧的第二传输线路中引起故意故障，并且位于第一传输线路上故障点正上游侧的第二站点形成第一环回路径（WRAPA ），如果第二站已经接收到信标信号，则通过检测第二传输线上的故意故障。 第一站通过从第二站发回的第二传输线接收信标形成第二环回路径（WRAPB）。
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公开(公告)号：US4984233A
公开(公告)日：1991-01-08
申请号：US479359
申请日：1990-02-13
申请人： Susumu Nakayashiki , Jiro Kashio , Hisashi Matsumura , Hiroyuki Wada , Yoshihito Sako , Fumiaki Matsuura , Ihei Kajiya
发明人： Susumu Nakayashiki , Jiro Kashio , Hisashi Matsumura , Hiroyuki Wada , Yoshihito Sako , Fumiaki Matsuura , Ihei Kajiya
CPC分类号： H04L43/10 , H04L12/42 , Y04S40/168
摘要： A method for performing a duplicated address test used for a network including a first ring transmission line, a second ring transmission line having a signal transmission direction opposite to that of the first ring transmission line, and a plurality of stations connected to at least one of these ring transmission lines. Each of these stations has a flag DAC representing whether or not the duplicated address test is performed, and some of the plural stations constitute a plurality of control nodes having a configuration function of the network. The flag DAC of each of the stations is reset at a time instant when a power source of this station is turned on, and also when any of the control nodes receives the sent out configuration control frame. Each of the stations having the reset flags DAC sents out the duplicated address test frame to either the first or second transmission line to which the station is connected when a token frame to control a transmission right is captured. When another station having the same address as that of a source station receives the test frame, a discriminator indicative of an address duplication is added to this test frame.
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公开(公告)号：US4847611A
公开(公告)日：1989-07-11
申请号：US86821
申请日：1987-08-19
IPC分类号： H04L12/42
CPC分类号： H04L12/42
摘要： In a ring communications system including a plurality of line concentrators that are connected in the form of a ring, the line concentrators are connected together via a main ring, and the terminal stations connected to the line concentrators are connected to the main ring via ring subsidiaries. The main ring and the ring subsidiaries are connected together via ring connection switches that so work as to connect or disconnect the main ring and the ring subsidiaries. The ring connection switch is so constructed as to maintain the connected condition even when the power source of the line concentrator is in the turned-off state.
摘要翻译： 在包括以环形连接的多个集线器的环形通信系统中，线路集线器通过主环连接在一起，连接到集线器的终端站通过环形子系统连接到主环 。 主环和环形子公司通过环形连接开关连接在一起，用于连接或断开主环和环形子公司。 环形连接开关被构造成即使当线路集电器的电源处于关断状态时也保持连接状态。
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公开(公告)号：US4435704A
公开(公告)日：1984-03-06
申请号：US354918
申请日：1982-03-08
IPC分类号： H04L1/22 , H04L12/437 , H04Q9/00 , G06F11/00
CPC分类号： H04L1/22 , H04L12/437
摘要： A loop transmission system including a plurality of stations connected in series in a looped transmission line to transfer data among the stations, wherein the stations include a supervising station and at least one terminal station and the transmission line is duplicated so that when a fault occurs in currently used one of the transmission lines, the other transmission line which has been used as a spare is used for transmission of data, while the supervising station sends out a specific signal to the spare transmission line and the terminal stations each determines one of the transmission lines through which the specific signal is detected, as the spare.
摘要翻译： 一种环路传输系统，包括在循环传输线中串联连接以在站间传输数据的多个站，其中站包括监控站和至少一个终端站，并且传输线被复制，使得当发生故障时 目前使用的传输线之一，已经用作备用的另一传输线用于数据传输，而监控站向备用传输线发送特定信号，并且终端站各自确定传输 检测到特定信号的线路作为备用线路。
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