In an automation system, a protocol converter is provided between a first network and a second network for converting safety-related messages between the first and second networks that use different network protocols for message exchange. In the protocol converter, a single-channel filter connected to a single-channel interface determines messages having a first safety communication protocol from messages received from the interface over the first network and messages having a second safety communication protocol received over the second network. An at least dual-channel safety module connected to the single-channel filter then converts the messages with the first safety communication protocol determined by the single-channel filter into messages with the second safety communication protocol, or converts the messages with the second safety communication protocol determined by the single-channel filter into messages with the first safety communication protocol.

Rapid channel failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet channel standards. Thus, resilient wireless packet communications is provided using a physical layer link aggregation protocol with a hardware-assisted rapid channel failure detection algorithm and load balancing, preferably in combination. This functionality may be implemented in a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, these features may be provided in combination with their existing protocols.

Methods and systems for enabling or disabling a non-interfering mode in a telematics device are provided. The methods may include determining by a telematics server that a telematics device coupled to an asset communications bus of an asset may enter or exit a non-interfering mode. The methods may also include detecting the presence of a diagnostic tool on the asset communications bus.

An elevator communication system includes a first elevator controller; a second elevator controller; and a first ethernet bus portion connected to the first elevator controller, the first ethernet bus portion having sequential bus segments interconnected by at least one switch. The first ethernet bus portion is arranged in a first elevator shaft. A second ethernet bus portion is connected to the second elevator controller and includes sequential bus segments interconnected by at least one switch. The second ethernet bus portion is arranged in a second elevator shaft. A switch of the first ethernet bus portion and a switch of the second ethernet bus portion are interconnected to enable data transmission between the switch of the first ethernet bus portion and the switch of the second ethernet bus portion. The first elevator controller is communicatively connected to the second elevator controller.

Rapid channel failure detection and recovery in wireless communication networks is needed in order to meet, among other things, carrier class Ethernet channel standards. Thus, resilient wireless packet communications is provided using a physical layer link aggregation protocol with a hardware-assisted rapid channel failure detection algorithm and load balancing, preferably in combination. This functionality may be implemented in a Gigabit Ethernet data access card with an engine configured accordingly. In networks with various topologies, these features may be provided in combination with their existing protocols.

A situational awareness system for a vehicle comprising a cyber-physical system, wherein the situational awareness system is configured to generate an imaging dataset for processing by the cyber-physical system for enabling semi-autonomous or autonomous operational mode of the vehicle, wherein the situational awareness system includes a sensory system with a first electro-optical unit for imaging the surroundings of the vehicle, a second electro-optical unit configured for imaging a ground area in a direct vicinity of the vehicle, a radar unit for detecting objects, and a third electro-optical unit for object identification, wherein the situational awareness system further includes a data synchronization system configured to synchronize the imaging dataset obtained by means of each unit of the sensory system, wherein the data synchronization system is configured to provide the synchronized imaging dataset to the cyber-physical system of the vehicle.

A method for securing time synchronization in a server ECU, including: initializing time synchronization of the components; storing a unique clock identification of a grandmaster clock; identifying a shadow controller; transmitting the synchronization messages; querying the sending time with the shadow controller; inserting the time in the follow-up message via the controller that forms the grandmaster clock, and retransmitting the time; sending additional messages relating to time synchronization via selected network devices that do not provide the previously determined grandmaster clock. The time information sent in the additional messages relating to time synchronization and also the clock parameters relevant for determining the best clock by means of BMCA and the domain number match those of the previously determined grandmaster clock, or are comparable with them. The additional messages relating to time synchronization contain a unique clock identification corresponding to the identification of the respective selected network device.

An automation network with network subscribers is provided, in which the network subscribers are interconnected via a data line network. At least one network subscriber is configured as a master subscriber, which is adapted to send telegrams via the data line network. At least one network subscriber is configured as a network distributor, which is adapted to route telegrams. The network distributor has a plurality of input/output ports, and is connected to the master subscriber via a first input/output and data line network. The master subscriber is configured to use a telegram element to indicate that the telegram is enabled for processing by the network subscribers. In addition, the network distributor is configured to process a telegram received via the first input/output port when the telegram element indicates enablement of processing of the telegram by the network subscribers.

A relay device and a multi-split control system that achieve reliable communication between an outdoor air conditioning unit and multiple indoor units under the condition that the length of a communication bus is limited. The system expands the communication distance by a cascade path formed by a plurality of relay devices. The cascade path transmits control signals sent by a master control device/a specific slave control device (i.e. a slave control device communicating with the master control device or certain relay device) to corresponding slave control devices one by one, and the corresponding slave control devices transmit the signals to the master control device/specific slave control device according to a response signal fed back by the control signal, where the relay devices may respectively communicate with a source node device and a destination node device on the basis of the master-slave type communication mode.

Method and network device for providing redundancy in an industrial network includes a first port group connected to a first network segment of the industrial network, and includes a switch module that has a plurality of southbound ports, wherein at least one southbound port is connected to a corresponding end device, where each port group has a pair of redundant northbound ports connected to a link redundancy entity having two or more interlinked ports connectable to one or more south-bound ports of switch module based on network topology for enabling redundant links between end devices connected to the southbound ports and the first network segment.