A dynamically addressable master-slave system and a method for dynamically addressing slave units includes a master unit and a plurality of slave units, such that the slave units are interconnected with the master unit via a bus system. The respective network addresses of the slave units are assigned to the respective serial numbers of these slave units in a table in the master unit according to the position thereof in the system according to a determined order. Upon replacement of slave units, a list of serial numbers of the units to be replaced is transferred to the master unit in the sequence of the acquisition of the serial numbers, which master unit replaces these serial numbers in the table with the serial numbers of the replaced slave units transmitted to the master unit.

A binding and configuration method for a bus adapter and a channel, a mapping manager, and a connection system are provided. The binding and configuration method for the bus adapter and the channel includes: configuring a mapping table of a mapping manager; associating a logical channel with a corresponding hardware channel based on the mapping table; and connecting the logical channel to the corresponding hardware channel for data communication. A common architecture for the application program to access bus adapter resources is realized. The application programs using this architecture can arbitrarily configure the bus adapter model and the hardware channel that need to be connected, and the mapping relationship takes effect immediately after each configuration change without modifying the user's software, thus improving the efficiency of the application program development and reducing the possibility of errors.

An electric/electronic architecture for a motor vehicle includes an electronic computing device for communicating with at least one actuator of the motor vehicle. The electric/electronic architecture has an interface controller which is contacted by at least one sensor device of the motor vehicle and the electronic computing device, wherein the at least one actuator directly communicates with the electronic computing device, and the at least one sensor device directly communicates with the interface controller.

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 method and corresponding set-up system arrangement are provided for actuating execution units. A communication node is further provided which is suitable for use in the method or in the system arrangement. Also provided is a computer program comprising control commands which implement the proposed method or operate the proposed system arrangement.

A method for configuring slave devices in a communication system including a master device and slave devices, wherein the master device and the slave devices are connected in chain via a commission line and in parallel via a field bus line, and wherein each slave device is indexed by an index greater than or equal to 1, the slave device of index 1 being connected to the master device. To enroll the slave device of index k, k being equal to or greater than 1, the master device is able to: send, in broadcast via the field bus line, an address configuration frame containing instructions for address configuration with a defined address of index k for the slave device of index k; send, in broadcast via the field bus line, a request for device information, the request containing the defined address; send, in broadcast via the field bus line after having received a reply containing device information and the defined address, a command for sending a commissioning signal via the commission line to the slave device of index k+1, the command containing the defined address; and store the received device information in an information table, the device information containing an identifier of the slave device of index k and a type of the slave device of index k, wherein the slave devices have a common default address before being enrolled and only a slave device of index k, which has the common default address and detects a commissioning signal on the commission line, accepts the address configuration frame to change the common default address of the slave device of index k to the defined address.

A misuse detection method used in an electronic control unit in a vehicle network system including multiple electronic control units that communicate with one another through networks. The misuse detection method includes receiving a target data frame at one time point, and receiving a reference data frame at another time point different than the one time point. The misuse detection method further includes performing, as misuse detection for the target data frame based on a certain rule specifying a reception interval between the one time point at which the target data frame is received and the other time point at which the reference data frame is received, and determining the target data frame received is for misuse based on a length of the reception interval.

Embodiments described herein provide a tree-based key management protocol with enhanced computational and bandwidth efficiency. A tree structure including a plurality of nodes is formulated according to modules in a vehicle. A group key and a blinded key are computed for a leaf node from the plurality of nodes based at least in part on a multiplication operation defined in an ecliptic curve group. Or a group key and a blinded key are recursively computed for a non-leaf node based at least in part on a key derivation function and the multiplication operation involving a group key and a blinded key corresponding to nodes that is one level down to the non-leaf node.

A computing system may use redundant communication pathways for communicating surgical imaging feed(s). The computing system may obtain multiple surgical video streams via multiple pathways. The multiple surgical video streams may include copies of the same video. The surgical video streams may be obtained, for example, from the same intra-body imaging feed, such as intra-body visual light feed. For example, a first video stream may be obtained via a communication pathway, and a second video stream may be obtained via another communication pathway. The computing system may display or send a surgical video stream for display. The computing system may whether the video stream being displayed has encountered any issues. Upon detecting an issue with the video stream being displayed, the computing system may display or send another obtained surgical video stream for display.

A vehicle control system is communicably connected with an electronic controller and a control circuit. The control circuit is controlled by the electronic controller as a control target. The vehicle control system communicates with the electronic controller using a control communication frame and communicates with the control circuit using a circuit communication frame. The control communication frame and the circuit communication frame have different formats from one another. The vehicle control system includes at least one of a first sequence circuit converting the control communication frame into the circuit communication frame or a second sequence circuit converting the circuit communication frame into the control communication frame.