Multiplex transmission method and a synchronizing method in multiplex
transmission
    2.
    发明授权
    Multiplex transmission method and a synchronizing method in multiplex transmission 失效
    复用传输中的多路复用传输方法和同步方法

    公开(公告)号:US5490143A

    公开(公告)日:1996-02-06

    申请号:US240492

    申请日:1994-05-10

    IPC分类号: H04L12/413 H04J3/06

    CPC分类号: H04J3/0605 H04L12/4135

    摘要: When a message is transmitted, frame by frame, from any one (10) of a plurality of multiplex nodes to a common multiplex bus (MB) to which the multiplex nodes are connected, each of the multiplex nodes (20 and 30) determines that transmission of a frame therefrom is allowed when it detects a transmission permission signal (b, b') added to the frame after detection of and idle state of the multiplex bus, and starts transmitting a message data frame. This makes it possible to properly implement priority-based control according to the priority levels of the data frames irrespectively of variations in the reference clocks of the multiplex nodes. Further, receiving multiplex nodes perform frame synchronization at the rise of a special code (a) of a start code (SOM) of a message data frame, and then perform re-synchronization at the rise of a special bit pattern (b") which includes a passive bit and a dominant bit. This prevents synchronization from being deviated and bit errors resulting from deviated synchronization, thus leading to higher reliability of multiplex transmission.

    摘要翻译: 当从多个多路复用节点中的任何一个(10)到多路复用节点连接的公共多路复用总线(MB)逐帧传输消息时,多路复用节点(20和30)中的每一个确定 当检测到多路复用总线的检测和空闲状态之后检测到添加到帧中的发送许可信号(b,b')时,允许发送帧,并开始发送消息数据帧。 这使得可以根据数据帧的优先级来适当地实现基于优先级的控制,而与多路复用节点的参考时钟的变化无关。 此外,接收多路复用节点在消息数据帧的起始码(SOM)的特殊码(a)的上升处执行帧同步,然后在特殊位模式(b“)的上升执行重新同步, 其中包括无源位和占位。 这防止了同步偏离和由偏差同步引起的位错误,从而导致更高的多路传输可靠性。

    Multiplex transmission apparatus
    3.
    发明授权
    Multiplex transmission apparatus 失效
    多路传输装置

    公开(公告)号:US5408471A

    公开(公告)日:1995-04-18

    申请号:US159492

    申请日:1993-11-30

    CPC分类号: B60R16/0315 B60R2016/0322

    摘要: Communication nodes which respectively transmit periodic information and non-periodic information in multiplex fashion are provided separately. These communication nodes selectively transmit periodic information to a multiplex transmission line which is originally for transmitting the non-periodic information or non-periodic information to a multiplex transmission line which is originally for transmitting the periodic information in accordance with the state of transmission/reception of the periodic information and non-periodic information.

    摘要翻译: 以多路复用方式分别发送周期性信息和非周期性信息的通信节点分别提供。 这些通信节点选择性地将周期性信息发送到原本用于将非周期性信息或非周期性信息发送到多路传输线路的复用传输线路,该复用传输线路最初用于根据发送/接收状态发送周期性信息 周期信息和非周期信息。

    Vehicle multiplex transmission apparatus
    4.
    发明授权
    Vehicle multiplex transmission apparatus 失效
    车载复用传输装置

    公开(公告)号:US5675189A

    公开(公告)日:1997-10-07

    申请号:US288189

    申请日:1994-08-09

    IPC分类号: B60R16/02 B60R16/03 H02J9/00

    CPC分类号: B60R16/0315 B60R2016/0322

    摘要: A vehicle multiplex transmission apparatus which can operate all the auxiliary units of a vehicle even when a power supply line of the vehicle is locally short-circuited. This vehicle multiplex transmission apparatus includes a plurality of control nodes arranged in respective portions of a vehicle, for controlling vehicle auxiliary units, and a multiplex transmission line for connecting among the plurality of control nodes. The control nodes are connected to a power supply node arranged at a predetermined position of a vehicle body through two independent systems of first and second power supply lines. The first power supply line supplies power to vehicle travel auxiliary units. The second power supply line supplies power to general system auxiliary units, but it can supply power to the travel auxiliary units as needed.

    摘要翻译: 即使当车辆的电源线局部短路时,也能够操作车辆的所有辅助单元的车辆用多路复用发送装置。 该车辆用多路复用传输装置包括布置在车辆的各部分中的多个控制节点,用于控制车辆辅助单元,以及用于在多个控制节点之间连接的复用传输线。 控制节点通过第一和第二电源线的两个独立系统连接到布置在车身的预定位置处的电源节点。 第一个电源线为车辆行驶辅助装置供电。 第二电源线为通用系统辅助单元供电,但可根据需要向行驶辅助单元供电。