公开(公告)号：JPS59158154A

公开(公告)日：1984-09-07

申请号：JP3229183

申请日：1983-02-28

Applicant: Nec Corp

Inventor： YASUE KAZUO

IPC: H04L12/437

CPC classification number: H04L12/437

Abstract: PURPOSE: To reduce the constitution of hardware and to place the whole system in a loop-back state by exactly the same method as a normal data transfer method without stopping the system by connecting a transmission side to both transmission lines of a stand-by system and an operation system when a loop- back command is received.
CONSTITUTION: A transmitter 4 is used as a data transmitter which monitors a loop or controls the system, and it is assumed that a new data transmitter is installed additionally between the data trasnmitter 1 and a data transmitter 2. A data transmitter 4 performs transmission firstly; to the frame data transmitter 1 which has a loop-back command (LOPBACKA) for connecting an operation system transmission line to a recetion side and a stand-by transmission line to a transmission side, and a frame receiving circuit 91 performs reception. The frame receiving circuit 91 confirms that this frame is addressed to this station (data transmitter 1) and receives the frame of the command LOOPBACK A. This frame is never supplied to the low-order station.
COPYRIGHT: (C)1984,JPO&Japio

Abstract translation: 目的：为了减少硬件的结构，通过与正常的数据传输方法完全相同的方法将整个系统置于环回状态，而不会通过将传输侧​​连接到备用系统的两条传输线而不停止系统 以及接收到回送命令时的操作系统。 构成：发射机4用作监视环路或控制系统的数据发射机，并且假设在数据传送器1和数据发射机2之间另外安装新的数据发射机。数据发射机4首先进行传输 ; 具有用于将操作系统传输线连接到重合侧的回送命令（LOPBACKA）和发送侧的备用传输线的帧数据发送器1，并且帧接收电路91执行接收。 帧接收电路91确认该帧被寻址到该站（数据发送机1），并接收命令LOOPBACK A的帧。该帧从不提供给低位站。

公开(公告)号：JPS59158146A

公开(公告)日：1984-09-07

申请号：JP3100883

申请日：1983-02-28

Applicant: Nec Corp

Inventor： YAMAGUCHI HITOSHI

IPC: H04L12/437

CPC classification number: H04L12/437

Abstract: PURPOSE:To eliminate almost completely the system failure of a looped data transmission network by reconstruct one long loop by a loop-back line even in case of an erroneous transmission originating from a fault of a signal line. CONSTITUTION:When a signal received from a high-order station through the signal line is disconnected the loop-back control part 5 of said station operates a disconnection detecting circuit 11 to output a signal with a logical level ''1''. This signal with the logical level ''1'' serves as the control signal of an OR circuit 13 and the 1st switching circuit 14 regards the digital receive signal of a signal converter 4 which converts a transmission line signal received through a low-order station through the loop-back line as the receive data of the station. The signal with the logical level ''1'' outputted by the OR circuit 13 is inverted by an inverter circuit 18 to a logical level ''0'' to obtain a control signal, which permits an AND circuit 19 to stops the transmission of a signal to the high- order station through a signal converter 2 and the loop back line. Thus, one large data highway from the high-order station to this station is constituted by the loop-back line and the transmit data sent out of the high-order station through the loop-back line is received by this station.

Abstract translation: 目的：为了消除环路数据传输网络的系统故障，即使在信号线故障发生错误传输的情况下，也可以通过环回线重构一个长环路。 构成：当从高位站通过信号线接收的信号断开时，所述站的环回控制部分5操作断路检测电路11以输出具有逻辑电平“1”的信号。 具有逻辑电平“1”的该信号用作“或”电路13的控制信号，第一开关电路14考虑信号转换器4的数字接收信号，该信号转换器4转换通过低位站接收的传输线信号 通过回路线作为车站的接收数据。 由OR电路13输出的具有逻辑电平“1”的信号被反相器电路18反相到逻辑电平“0”，以获得控制信号，从而允许“与”电路19停止 通过信号转换器2和回路线向高阶站发送信号。 因此，从高位站到该站的一条大数据通道由回送线构成，并且由该站接收通过回送线从高位站发出的发送数据。

公开(公告)号：JPS59151552A

公开(公告)日：1984-08-30

申请号：JP2554783

申请日：1983-02-17

Applicant: Matsushita Electric Ind Co Ltd

Inventor： MASUDA MICHINORI ,  OONO KENZOU

IPC: H04L12/437

CPC classification number: H04L12/437

Abstract: PURPOSE:To attain such as linking and loop back processing of a node with high reliability in a short time by applying a signal to a main and a sub-transmission lines in opposite direction with each other and switching the transmission line based on the information about signal interruption of the main and sub- transmission lines at each node and the state of a communication control circuit of the node. CONSTITUTION:A communication station (control node) 1 performing system synchronism and the management of connecting state of communication stations (nodes) or the like and the nodes 2-4 are connected in a loop by the main transmission line 102 and the sub-transmission line 102. Signals are applied in opposite direction to the main and the sub-transmission lines 102, 102 respectively. The nodes 2-4 are provided with a signal detecting circuit supervising the state of transmission lines. Each node performs logical processing based on the information obtained from the signal detecting circuit and the information representing the state of the communication control circuit of the nodes. The changeover of the transmission lines is attained by the result.

Abstract translation: 目的：通过在主方向和副传输线上相互相反的方向施加信号，在短时间内实现具有高可靠性的节点的链接和环回处理，并根据关于 每个节点处的主传输线路和子传输线路的信号中断以及节点的通信控制电路的状态。 构成：执行系统同步的通信站（控制节点）1和通信站（节点）等的连接状态的管理以及节点2-4由主传输线102和子传输 信号分别以与主传输线102和副传输线102相反的方向施加。 节点2-4设置有监控传输线状态的信号检测电路。 每个节点基于从信号检测电路获得的信息和表示节点的通信控制电路的状态的信息执行逻辑处理。 通过结果可以实现传输线的切换。

公开(公告)号：JPS5927137B2

公开(公告)日：1984-07-03

申请号：JP6954979

申请日：1979-06-05

Applicant: Fmc Corp

Inventor： KEISU ESU CHANPURIN ,  AANESUTO CHAARUZU PURAIMUZUBAAGA ,  RARII ARUFURETSUDO MAIYA ,  JOOJI UIRIAMU MIRA

IPC: H04L29/00 ,  G06F13/00 ,  H04B1/74 ,  H04L1/00 ,  H04L7/00 ,  H04L12/43 ,  H04L12/437

CPC classification number: H04L1/0083 ,  H04B1/74 ,  H04L12/43 ,  H04L12/437

公开(公告)号：JPS5961248A

公开(公告)日：1984-04-07

申请号：JP16956982

申请日：1982-09-30

Applicant: Saginomiya Johnson Control Kk ,  Saginomiya Seisakusho Inc

Inventor： NAGAHAMA HIDEO ,  SUZUKI NOBUYUKI

IPC: H04B1/74 ,  H04L12/437 ,  H04Q9/00

CPC classification number: H04L12/437

Abstract: PURPOSE:To simplify devices and to check a fault in an in-use station and a backup station at the time of switching by receiving a data signal from a slave station by the backup station during the communication with the in-use station and making an operation controlling part control the switching. CONSTITUTION:If a receiving signal is not detected by one of an in-use station 22 and a backup station 22', the operation controlling part 33 sets up the by-pass mode in the station 22', a circuit is passed through a by-pass line 40' and the station 22 sends a check code to the circuit. When the code is received by the station 22 through the slave station 21 and the by-pass line 40', the fault of a transmitting/receiving part of the station 22' is diagnosed and communication between the station 22 and the slave station 21 is restarted. When the check code is not received by the station 22 within a fixed period, the station 22 is decided to be defective and the control part 33 sets the station 22 to the connection mode, switches the station 22' to the connection and transmission modes and sends the check code to the circuit. When the code is received by the station 22', it is confirmed that the station 22 is defective and the station 22' starts to communicate with the slave station 21. The station 22' can check the faults of both the stations at the time of switching without the collection of past data.

Abstract translation: 目的：通过在与使用站通信期间由备用站接收来自从站的数据信号来简化设备并在切换时检查在使用站和备用站中的故障，并且使 操作控制部分控制切换。 构成：如果使用站22和备用站22'之一没有检测到接收信号，则操作控制部33在站22'中设置旁路模式，电路通过 通线40'，站22向电路发送检查码。 当站22通过从站21和旁路线40'接收到代码时，诊断站22'的发送/接收部分的故障，并且站22和从站21之间的通信是 重新启动。 当站22在一定期限内没有接收到支票代码时，站22被判定为有缺陷，控制部33将站22设定为连接模式，将站22'切换为连接和发送模式， 将校验码发送到电路。 当站22'接收到代码时，确认站22有故障，站22'开始与从站21通信。站22'可以检查两个站的故障， 切换而不收集过去的数据。

公开(公告)号：JPS5910628B2

公开(公告)日：1984-03-10

申请号：JP7133278

申请日：1978-06-13

Applicant: Mitsubishi Electric Corp

Inventor： NAKATANI TAKAHISA

IPC: G06F13/00 ,  H04L12/437

CPC classification number: H04L12/437

公开(公告)号：JPS5936455A

公开(公告)日：1984-02-28

申请号：JP14637082

申请日：1982-08-24

Applicant: Nec Corp

Inventor： MIZUTA MASANORI

IPC: H04L12/437

CPC classification number: H04L12/437

Abstract: PURPOSE:To communicate quickly a failure of a slave station to a master station, by monitoring the state of a terminal with a switching control circuit taking interface between a loop transmitter and the slave station, in the data transmission from the master station to the slave station provided in a loop transmission line. CONSTITUTION:Data from a loop is inputted from an input terminal RD and outputted to the loop via an output terminal L-SD. When the signal is a signal addressed to the own station, the address is checked 2 and the signal is transmitted to the slave station via the terminal SD and an AND gate a2. If the slave station is failed, a signal is given to signal lines l5, l6 of a status checker 4. When the address of the slave station is transmitted from the master station, a failure pattern is transmitted to the master station from a pattern generator in succession to the address signal.

Abstract translation: 目的：通过在从主站到从站的数据传输中通过监视环路发送器和从站之间的接口的开关控制电路来监视终端的状态，快速地将从站故障通信给主站 站设置在环路传输线路中。 构成：从输入端子RD输入来自环路的数据，经由输出端子L-SD输出到环路。 当信号是寻址到本站的信号时，地址被检查2，信号通过端子SD和与门a2发送到从站。 如果从站发生故障，则会向状态检查器4的信号线15,16提供信号。当从主站发送从站的地址时，将故障模式从模式发生器发送到主站 连续地址信号。

公开(公告)号：JPS5932301A

公开(公告)日：1984-02-21

申请号：JP14142282

申请日：1982-08-13

Applicant: Mitsubishi Electric Corp

Inventor： HONMA EIJIYU

IPC: B60L3/00 ,  H04L12/437 ,  H04Q9/00

CPC classification number: H04L12/437

Abstract: PURPOSE:To prevent a system-down of a transmission system by forming the systems of transmission line loops to terminal stations from a central station in two pairs while utilizing transmission lines among the terminal stations in a unit. CONSTITUTION:When a disconnection is generated in a transmission line 16b in the system 16, the loop constituted by transmission lines 16a, 16b, 16c is cut and the function of the loop stops, but the loop constituted by transmission lines 15a, 15b, 15c of the system 15 is normal. Accordingly, the terminal station 3 and the terminal station 5 are each given control commands received from the central station 1 through the terminal stations 2 and 4. With monitor informations which must be transmitted over the central station 1 from the terminal station 3 and the terminal station 5, informations being transmitted to the terminal stations 2 and 4 are connected to reception messages at the terminal stations 2 and 4, and transmitted to the central station 1 through the transmission lines 15b, 15c.

Abstract translation: 目的：通过在一个单元中使用终端站之间的传输线路，以两对形式从中央站向终端站形成传输线环路系统来防止传输系统的系统关闭。 构成：当在系统16中的传输线16b中产生断开时，由传输线16a，16b，16c构成的环路被切断，并且环路的功能停止，而由传输线15a，15b，15c构成的环路 的系统15是正常的。 因此，终端站3和终端站5各自被赋予通过终端站2和4从中心站1接收的控制命令。具有必须通过中心站1从终端站3和终端站发送的监视器信息 站5，正在发送到终端站2和4的信息连接到终端站2和4处的接收消息，并通过传输线路15b，15c发送到中央站1。

公开(公告)号：JPS59249A

公开(公告)日：1984-01-05

申请号：JP10933182

申请日：1982-06-25

Applicant: Nec Corp

Inventor： ITOU KIYOHIKO

IPC: H04L12/437

CPC classification number: H04L12/437

Abstract: PURPOSE:To detect quickly whether generation of a fault exists or not, by constituting so that a terminal station which is in a faulty state when a fault detecting channel sent out from a central station is passing can write the faulty state in a prescribed bit of this channel. CONSTITUTION:When checking a fault, a fault detecting fixed channel ALM CH is sent out in a clear state from a central device 100, and passes through each terminal station 101-10n. In this case, a terminal station in which a fault is generated writes a 1 level signal in at least one of a fault collecting bit NO CHG ALM and an important fault collecting bit CHG ALM in accordance with a degree of importance of its fault. In case when a fault is generated in plural terminal stations, write of the fault is executed under an OR condition, and it passes through all the terminal stations and returns to the central station. Since this time is extremely short, the fault detecting time can be shortened comparing with a successive polling system to all the terminal stations.

Abstract translation: 目的：通过构造使得当从中心站发出的故障检测通道正在通过的处于故障状态的终端时，快速检测故障的生成是否可以将故障状态写入规定位 这个频道。 构成：检查故障时，故障检测固定信道ALM CH以清除状态从中央设备100发出，并通过各终端站1101-10n。 在这种情况下，产生故障的终端根据其故障的重要程度将故障收集位NO CHG ALM和重要故障收集位CHG ALM中的至少一个写入1级信号。 在多个终端站发生故障的情况下，在OR条件下执行故障写入，并且通过所有终端站并返回到中心站。 由于这个时间非常短，所以与所有终端的连续轮询系统相比，可以缩短故障检测时间。

公开(公告)号：JPS58221523A

公开(公告)日：1983-12-23

申请号：JP10489282

申请日：1982-06-17

Applicant: Nec Corp

Inventor： TAKUMI KENTA

IPC: H04B3/46 ,  H04L12/437

CPC classification number: H04L12/437

Abstract: PURPOSE:To facilitate a detection of a faulty area, by switching the using system to a stand-by system when the using system has a fault and at the same time reporting the system switcing to a monitor device above that time through a receiving station or a transmitting system. CONSTITUTION:For instance, a data transmitting device 2 receives a data frame and performs an FCS check when data is transmitted to the device 2 from a data transmitting device 4. Then no answer frame is sent back to the device 4 if an error of the data frame is detected. The device 4 detects the time-out if no answer frame is sent back and then transmits again the same data frame. When the error detecting frequency through the FCS checking exceeds a prescribed level, the device 2 regards that the using system is not serviceable and then switches the using system to a stand-by system as well as to inform this switching to a monitor device 1. On the other hand, the device 4 decides the failure of retransmission and then informs this fact to the device 1 by means of an information field I.

Abstract translation: 目的：为了便于检测故障区域，当使用系统发生故障时，将系统切换到备用系统，同时通过接收站将系统切换到超过该时间的监视设备，或 传输系统。 构成：例如，数据发送装置2从数据发送装置4向装置2发送数据时，接收数据帧并执行FCS检查。然后，如果发送装置4的错误 检测到数据帧。 如果没有应答帧被发回，设备4检测到超时，然后再次发送相同的数据帧。 当通过FCS检查的错误检测频率超过规定的水平时，设备2认为使用系统不可用，然后将使用系统切换到待机系统，并将该切换通知给监视设备1。 另一方面，设备4决定重传失败，然后通过信息字段I向设备1通知该事实。