Method and system for communicating data between a transmitter and a receiver via a physical transmission medium interposed there between, wherein the transmitter outputs over the transmission medium towards the receiver, a predefined precursor signal followed by a target signal carrying data packet. Based on the precursor signal received at the receiver, estimated values of actual electrical parameters of the physical transmission medium are computed via a predetermined model of the physical transmission medium, wherein the computed estimated values of the electrical parameters are indicative of a distortion caused by the physical transmission medium on the predefined precursor signal outputted by the transmitter. The data packets originally outputted by the transmitter are estimated based on the computed estimated values of the actual electrical parameters and on the target signal received at the receiver.

Systems and methods for reconfigurable on-vehicle data routing are provided. In one embodiment, a data link communication system comprises: a router to communicate with at least one communication bus and at least one data bus, and monitor data communicated over the communication data buses, wherein the communication bus communicates data link messages with an off-vehicle service provider system, wherein the data bus transports data between the router and a plurality of on-vehicle systems; a routing control logic; and a conditional logic database, wherein the database comprises definitions of one or more datatypes and definitions for at least one data forwarding command; wherein, in response to receiving a first set of data associated with a datatype defined by the database, the logic executes the at least one data forwarding command to control the router to output a second set of data to one or more of the plurality of on-vehicle systems.

A system is provided having a vehicle. The vehicle includes a chassis, and a first network bus extending from internally in the chassis to a first network port attached externally to the chassis at a first side of the vehicle. The vehicle includes a second network bus extending from internally in the chassis to a second network port attached externally to the first chassis at a second side of the vehicle. The first network bus has a first electrical configuration and the second network bus has a second electrical configuration that is different than the first electrical configuration.

Systems and methods for reconfigurable on-vehicle data routing are provided. In one embodiment, a data link communication system comprises: a router to communicate with at least one communication bus and at least one data bus, and monitor data communicated over the communication data buses, wherein the communication bus communicates data link messages with an off-vehicle service provider system, wherein the data bus transports data between the router and a plurality of on-vehicle systems; a routing control logic; and a conditional logic database, wherein the database comprises definitions of one or more datatypes and definitions for at least one data forwarding command; wherein, in response to receiving a first set of data associated with a datatype defined by the database, the logic executes the at least one data forwarding command to control the router to output a second set of data to one or more of the plurality of on-vehicle systems.

A communication apparatus is mounted on a train and forms a train communication system together with a system control apparatus that generates control frames including general and low-latency frames. The communication apparatus includes: a general transfer processing unit that stores the general frame; a low latency transfer processing unit that stores the low-latency frame, the low latency frame requiring transferring with lower latency than the general frame; a frame identification unit that identifies priority of the control frame and outputs the control frame to the general transfer processing unit or the low latency transfer processing unit based on a priority setting table indicating the priority of the control frame and set in the identification unit; an output control unit that preferentially transfers the low-latency frame over the general frame; and a control unit that modifies the priority setting table.

A system for measuring brake data from a braking assembly of a vehicle. The braking assembly includes a floating portion that moves relative to brake pad wear. The system includes a brake sensor for each wheel. The brake sensors include a fixed sensing element and a target portion attached for movement with the floating portion. The sensing element generates a signal indicating a position of the target portion. The signal is used to determine brake pad thickness. The brake sensor also transmits the signal over a wireless vehicle area network for receipt and processing by a wireless hub in the vehicle area network. The vehicle area network can generate and transmit an alert and/or instructions for an autonomous vehicle based on the signal.

A method establishes a vehicle area network on a vehicle having a tractor with a tractor wireless hub, the tractor being connected to a first trailer having a first trailer wireless hub. The method activates the tractor hub and the first trailer wireless hub, and shares credentials between the tractor wireless hub and the first trailer wireless hub in accordance with out of band pairing techniques. Typically, the tractor wireless hub acts as an access point for the vehicle area network but the access point can be centralized by: searching down a length of the vehicle to determine relative locations of the tractor wireless hub, the first trailer wireless hub and the second trailer wireless hub; determining a centrally located hub based on the locations; and establishing the centrally located hub as the access point.

A train network control system, method and device and a train. The system comprises at least two power units. The power units in the at least two power units carry out data interaction by means of a backbone Ethernet or a hinged train bus, respectively. According to the train network control system, method and device and the train provided by the embodiments of the present invention, the backbone Ethernet and the hinged train bus form a redundant network structure, so that the communication stability and reliability among the power units in the train are enhanced.

According to one aspect of the present disclosure, a system for controlling a locomotive may comprise a controller; an Ethernet switch; one or more Ethernet modules in communication with the controller through the Ethernet switch, wherein a given Ethernet module of the one or more Ethernet modules includes a microcontroller and one or more connectors, wherein the microcontroller provides one or more communication interfaces; one or more power supplies connected to the one or more Ethernet modules and providing power to the one or more Ethernet modules; and one or more locomotive units in communication with the one or more Ethernet modules, wherein the one or more locomotive units are installed on the locomotive and controlled by the controller.

A communication apparatus is mounted on a train and forms a train communication system together with a system control apparatus that generates control frames including general and low-latency frames. The communication apparatus includes: a general transfer processing unit that stores the general frame; a low latency transfer processing unit that stores the low-latency frame, the low latency frame requiring transferring with lower latency than the general frame; a frame identification unit that identifies priority of the control frame and outputs the control frame to the general transfer processing unit or the low latency transfer processing unit based on a priority setting table indicating the priority of the control frame and set in the identification unit; an output control unit that preferentially transfers the low-latency frame over the general frame; and a control unit that modifies the priority setting table.