A system, automobile, and method for implementing an electronic control function of an automobile. The system includes a first vehicle integration unit (VIU), an automobile control unit, and a plurality of automobile parts. The automobile control unit includes a first domain controller (DC) or a central computing platform (CCP). The automobile control unit is configured to send first control information to the first VIU. The first VIU is configured to control the plurality of automobile parts based on the first control information. In embodiments of this application, the first VIU controls the plurality of automobile parts.

A method for operating a local bus, in particular a ring bus, including data bus participants, as well as a local bus master are described. The method comprises transmitting a first identifier of a cycle frame, the first identifier defining the beginning of the cycle frame; transmitting process data and management data over the local bus, the process data and management data being transmitted within the cycle frame, at least one isochronous data packet containing the process data being transmitted in a first time interval for the first identifier, and, if management data is transmitted within the cycle frame, this management data is transmitted separately from the process data.

A control method and device (100) based on an industrial Ethernet relate to the technical field of Ethernet. The industrial Ethernet involves a master node and a plurality of slave nodes. The master node transmits a predetermined packet to a first slave node (S140). The first slave node transmits the predetermined packet having been rewritten by the first slave node to a succeeding slave node linked to the first slave node until a last slave node in the plurality of the slave nodes receives the predetermined packet having been rewritten by all preceding slave nodes in the plurality of the slave nodes; and the last slave node transmits the predetermined packet back to the master node (S150). The master node then parses the predetermined packet, which has been rewritten by each of the plurality of the slave nodes, to uncover a topology of the slave nodes (S160). The master node informed by the topology transmits a command packet to one of the plurality of the slave nodes to be controlled (S180). As is shown, the predetermined packet transmitted by the master node is sequentially rewritten by the plurality of the slave nodes so that the master node can be informed of the topology of the slave nodes, thereby realizing distributed control and centralized management and improve security and reliability.

A photovoltaic system and a communication method therefor. The communication method includes: each slave sends a report signal to a host, and monitors a response signal of the host; and if the at least one slave receives the response signal, the corresponding slave executes a corresponding action on the basis of the response signal. Therefore, communication between the host and each slave is achieved in a mode that each slave actively sends the report signal, the host is prevented from adopting a roll call query mode, and occupation of bus resources by the host is reduced.

A communication device with an activated ring controller provided in both first and second subnetworks for data transmission in a redundantly operable communications network, which includes at least one first and one second subnetwork, which each include communication devices interconnected within a ring topology, wherein the subnetworks are interconnected via coupling line sections to which coupling communication devices are connected, where the coupling line section to which a selected coupling communication device is connected is operated as an inactive reserve coupling line section until a disruption occurs, whilst another coupling line section is operated as an active main coupling line section, where coupling communication devices connected to the main coupling line section transmit status datagrams to the selected coupling communication device which additionally include configuration information about whether the particular coupling communication device connected to the main coupling line section is an activatable ring controller.

A communication device with an activated ring controller provided in both first and second subnetworks for data transmission in a redundantly operable communications network, which includes at least one first and one second subnetwork, which each include communication devices interconnected within a ring topology, wherein the subnetworks are interconnected via coupling line sections to which coupling communication devices are connected, where the coupling line section to which a selected coupling communication device is connected is operated as an inactive reserve coupling line section until a disruption occurs, whilst another coupling line section is operated as an active main coupling line section, where coupling communication devices connected to the main coupling line section transmit status datagrams to the selected coupling communication device which additionally include configuration information about whether the particular coupling communication device connected to the main coupling line section is an activatable ring controller.

Examples disclosed herein relate to managing a second ring link failure in a multi-ring Ethernet network. In an example, an inter-connection network node in a multi-ring Ethernet network comprising a major ring and a sub-ring may propagate a signal failure (SF) event, received in response to a second ring link failure in the major ring, to one or more nodes in the sub-ring. In response to receiving the SF event, a Ring Protection Link (RPL) on the sub-ring may be unlocked to allow network traffic through the RPL and avoid loop formation on the multi-ring Ethernet network. The sub-ring may be moved to the ring protection switching state, including performing a filtering database (FDB) flush at every node on the multi-ring Ethernet network whereby all MAC addresses and related port associations for traffic forwarding are cleared from the FDB.

Examples disclosed herein relate to managing a second ring link failure in a multi-ring Ethernet network. In an example, an inter-connection network node in a multi-ring Ethernet network comprising a major ring and a sub-ring may propagate a signal failure (SF) event, received in response to a second ring link failure in the major ring, to one or more nodes in the sub-ring. In response to receiving the SF event, a Ring Protection Link (RPL) on the sub-ring may be unlocked to allow network traffic through the RPL and avoid loop formation on the multi-ring Ethernet network. The sub-ring may be moved to the ring protection switching state, including performing a filtering database (FDB) flush at every node on the multi-ring Ethernet network whereby all MAC addresses and related port associations for traffic forwarding are cleared from the FDB.

A machine automation system for controlling and operating an automated machine. The system includes a controller and sensor bus including a central processing core and a multi-medium transmission intranet for implementing a dynamic burst to broadcast transmission scheme where messages are burst from nodes to the central processing core and broadcast from the central processing core to all of the nodes.

A machine automation system for controlling and operating an automated machine. The system includes a controller and sensor bus including a central processing core and a multi-medium transmission intranet for implementing a dynamic burst to broadcast transmission scheme where messages are burst from nodes to the central processing core and broadcast from the central processing core to all of the nodes.