Multiplex transmission system
    1.
    发明授权
    Multiplex transmission system 失效
    多路传输系统

    公开(公告)号:US5299194A

    公开(公告)日:1994-03-29

    申请号:US977570

    申请日:1992-11-17

    IPC分类号: H04L12/413 H04L12/40

    CPC分类号: H04L12/413 H04L2012/40273

    摘要: A multiplex transmission system according to this invention includes a plurality of multiplex nodes connected to one another via a common multiplex bus, for effecting data transfer between the nodes. When reception nodes correctly receive data transmitted from one of the nodes for each frame, each of the reception nodes returns an ACK signal to the multiplex bus, registers all of the nodes connected to the multiplex bus into the ACK table in response to the ACK signal, and effects the ACK management. In this case, for example, if a door FR multiplex node causes an interruption to transmit a frame while an air-conditioning unit multiplex node is retransmitting a frame, the air-conditioning unit multiplex node effects the ACK management without regarding the ACK signal for the interruption frame as an object of the updating logic of its own ACK table.

    摘要翻译: 根据本发明的复用传输系统包括通过公共多路复用总线相互连接的多个多路复用节点,用于实现节点之间的数据传输。 当接收节点正确地接收从每个帧的节点之一发送的数据时,每个接收节点将ACK信号返回给多路复用总线,响应于ACK信号将连接到多路复用总线的所有节点注册到ACK表中 ,并影响ACK管理。 在这种情况下,例如,当空调单元复用节点正在重发帧时,如果门FR多路复用节点导致中断发送帧,则空调单元复用节点在不考虑ACK信号的情况下执行ACK管理 作为其自己的ACK表的更新逻辑的对象的中断帧。

    Multiple transmission apparatus
    2.
    发明授权
    Multiple transmission apparatus 失效
    多传输装置

    公开(公告)号:US5835537A

    公开(公告)日:1998-11-10

    申请号:US415080

    申请日:1995-03-30

    摘要: A multiplex transmission apparatus, having a communication control circuit for carrying out transmit-receive control of a frame of data transmitted through a bus, and an output port for outputting data in frame received by the communication control circuit. The multiplex transmission apparatus is operated by a power supply voltage supplied from a power supply circuit to perform data communication with another multiplex transmission apparatus via a bus. First and second low voltage detection circuits, when detecting preset voltage values V.sub.L and V.sub.R of a power supply voltage, reset the communication control circuit and the output port. This multiplex transmission apparatus keeps the output of the output port in a normal condition despite relatively small variations in the power supply voltage (i,e., where V.sub.L .gtoreq.power supply voltage>V.sub.R).

    摘要翻译: 一种多路传输装置,具有通信控制电路,用于对通过总线发送的数据帧进行发送接收控制;以及输出端口,用于输出由通信控制电路接收的帧中的数据。 多路复用发送装置由从电源电路供给的电源电压进行动作,经由总线进行与另一复用发送装置的数据通信。 第一和第二低电压检测电路当检测电源电压的预设电压值VL和VR时,复位通信控制电路和输出端口。 尽管电源电压(即,其中VL> / =电源电压> VR)的相对较小的变化,该多路传输装置将输出端口的输出保持在正常状态。

    Multiplex transmission method and a synchronizing method in multiplex
transmission
    3.
    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 system
    4.
    发明授权
    Multiplex transmission system 失效
    多路传输系统

    公开(公告)号:US5357525A

    公开(公告)日:1994-10-18

    申请号:US860897

    申请日:1992-03-31

    摘要: A multiplex transmission system of this invention includes a plurality of multiplex nodes interconnected by a common multiplex transmission line. A frame of data is transmitted among the multiplex nodes through the multiplex transmission line. When a data frame transmitted from an air conditioner switch multiplex node (subnode) is received, an air conditioner unit multiplex node (main node), which is predetermined as a destination node, detects the contents of each data from an ID-a of the received data, performs a calculation on SOM to DATA 4 received, generates collation data (CRC) in accordance with the result of the calculation and transmits same. The subnode generates collation data (CRC), which is an error check code, through a calculation on the transmitted SOM to DATA 4, and compares the thus-generated CRC with the CRC received from the main node, to determine whether or not the data transmission was properly carried out. When the data transmission was carried out properly, the subnode returns a signal ACK3, and when the data transmission failed, the data frame is retransmitted, whereby the subnode need not have an ACK management function.

    摘要翻译: 本发明的复用传输系统包括通过公共多路复用传输线互连的多个复用节点。 通过复用传输线在多路复用节点之间传输数据帧。 当接收到从空调开关多路复用节点(子节点)发送的数据帧时,作为目的地节点预先确定的空调机组复用节点(主节点)从ID-a的每个数据的内容检测出 接收到的数据,对接收到的数据4进行SOM计算,根据计算结果生成核对数据(CRC)并进行发送。 子节点通过对发送的SOM到DATA 4的计算产生作为错误校验码的校验数据(CRC),并将这样生成的CRC与从主节点接收到的CRC进行比较,以确定数据是否 传输得到了适当的实施。 当数据传输正确进行时,子节点返回信号ACK3,当数据传输失败时,数据帧被重传,子节点不需要具有ACK管理功能。

    Multiplex transmission system
    5.
    发明授权
    Multiplex transmission system 失效
    多路传输系统

    公开(公告)号:US5343475A

    公开(公告)日:1994-08-30

    申请号:US860896

    申请日:1992-03-31

    摘要: A multiplex transmission system of this invention includes a plurality of multiplex nodes interconnected by a common multiplex transmission line. A plurality of groups of different combinations of the multiplex nodes are predetermined, and a frame of data is transmitted among the multiplex nodes through the multiplex transmission line. The data frame includes a group specifying area specifying a group of nodes from which an acknowledge signal is to be returned. When a data frame transmitted from a sending node is received, each multiplex node determines whether or not it belongs to the group specified by bits in the group specifying area of the transmitted frame. When the data frame is properly received, only those multiplex nodes which belong to the specified group return the acknowledge signals to an acknowledge signal area in the data frame in accordance with the bits in the group specifying area, whereby the transmission efficiency is improved.

    摘要翻译: 本发明的复用传输系统包括通过公共多路复用传输线互连的多个复用节点。 多路复用节点的不同组合的多个组被预先确定,并且通过复用传输线在多路复用节点之间发送数据帧。 数据帧包括指定要从其返回确认信号的一组节点的组指定区域。 当接收到从发送节点发送的数据帧时,每个多路复用节点确定其是否属于由发送帧的组指定区域中的位指定的组。 当正确地接收到数据帧时,只有属于指定组的那些多路复用节点根据组指定区域中的位将确认信号返回到数据帧中的确认信号区域,从而提高了传输效率。

    Receipt acknowledgement method in multiplex transmission
    6.
    发明授权
    Receipt acknowledgement method in multiplex transmission 失效
    多路复用传输中的接收确认方法

    公开(公告)号:US5293571A

    公开(公告)日:1994-03-08

    申请号:US932339

    申请日:1992-08-19

    CPC分类号: H04L12/4135 B60R16/0315

    摘要: A receipt acknowledgement method which is applied to a multiplex transmission system provided with a plurality of multiple nodes (11 to 17) connected to one another through a multiplex bus (18), and is capable of conducting efficient data transmission, and in which a transmitting multiplex node (13) sends out a frame and, after entry into an ACK signal area of the frame, sends out a delimiter sign consisting of passive and active two bits with a four-bit interval, thereby dividing the acknowledgement signal area. The receiving multiplex nodes (11, 12, 14 to 17) are synchronized according to an active bit sent out from the transmitting multiplex node (13), and returns ACK signals to the ACK signal area in the predetermined order when data transfer on the transmission request frame has been normally performed, whereby data transmission can be conducted at high speed with improved efficiency.

    摘要翻译: 一种应用于具有通过多路复用总线(18)彼此连接的多个多个节点(11至17)的多路传输系统的接收确认方法,并且能够进行有效的数据传输,并且其中传输 多路复用节点(13)发出一个帧,并且在进入帧的ACK信号区域之后,以四比特间隔发送由无源和有源两比特组成的定界符,从而划分确认信号区域。 接收多路复用节点(11,12,14〜17)根据从发送多路复用节点(13)发出的有效位进行同步,并且当传输数据传输时以预定顺序返回ACK信号到ACK信号区域 通常执行请求帧,从而可以以高速提高数据传输效率。

    Data storing system for a communication control circuit
    7.
    发明授权
    Data storing system for a communication control circuit 失效
    用于通信控制电路的数据存储系统

    公开(公告)号:US5311510A

    公开(公告)日:1994-05-10

    申请号:US919911

    申请日:1992-07-27

    IPC分类号: G06F13/38 H04L12/56

    CPC分类号: G06F13/385

    摘要: The data storing system according to the present invention is used for a communication control circuit. The communication control circuit is equipped with a communication sequencer, which takes in a message to be transmitted to a multiplex bus, an ID table which registers data IDs of messages necessary for the station, and the first and second memory circuits which have memory areas keyed to the data IDs. When the communication sequencer takes in a message, it determines whether its data ID exists in the ID table. If the data ID exists and the frequency of occurrence is high, then data following the data ID is temporarily stored in a memory area keyed to a data ID of the first memory circuit. If the data ID exists and the frequency of occurrence is low, then the data following the data ID is temporarily stored in a memory area of the second memory circuit. When a CPU reads the aforementioned stored data, it sets the status area of the storage area, in which the data was stored, for a state that enables a data storage change.

    摘要翻译: 根据本发明的数据存储系统用于通信控制电路。 通信控制电路配备有通信定序器,其接收要发送到多路复用总线的消息,登记该站所需消息的数据ID的ID表以及具有存储区域的第一和第二存储器电路 到数据ID。 当通信定序器接收消息时,它确定其数据ID是否存在于ID表中。 如果数据ID存在且发生频率高,则数据ID之后的数据被临时存储在与第一存储器电路的数据ID相对应的存储区域中。 如果数据ID存在且发生频率低,则数据ID之后的数据被临时存储在第二存储器电路的存储区域中。 当CPU读取上述存储的数据时,它设置存储数据的存储区域的状态区域,以使数据存储改变的状态。

    Method and apparatus for multiplex transmission
    8.
    发明授权
    Method and apparatus for multiplex transmission 失效
    用于多路传输的方法和装置

    公开(公告)号:US5450403A

    公开(公告)日:1995-09-12

    申请号:US202275

    申请日:1994-02-25

    摘要: A multiplex transmission apparatus includes a communication control circuit connected to a bus for successively receiving data from the bus, and the received data is output from an output port to a load via an output circuit. The successively received data is once stored in a receiving buffer and is then transferred to the output port. A port control circuit, which is connected to the output port, monitors the data transferred to the output port. When at least part of the data does not change in a predetermined manner in response to the data received immediately before, the port control circuit controls data outputted from the output port so that loads controlled according to the data from the output port are held in a safe state.

    摘要翻译: 多路传输装置包括连接到总线的通信控制电路,用于从总线连续地接收数据,并且接收的数据经由输出电路从输出端口输出到负载。 连续接收的数据一次存储在接收缓冲器中,然后传送到输出端口。 连接到输出端口的端口控制电路监视传输到输出端口的数据。 当数据的至少一部分不响应于紧接在之前接收到的数据而以预定的方式改变时,端口控制电路控制从输出端口输出的数据,使得根据来自输出端口的数据控制的负载被保持在 安全状态。

    Multiplex transmission apparatus
    10.
    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。