A measurement device includes a substrate having accommodations with an emerging opening in which sensors are provided, the substrate including a cavity with a flexible printed circuit. The device is installed on a surface to characterize a fluid flow at this surface. The circuit uses hierarchized buses comprising two data communication buses emerging at the two longitudinal ends of the substrate and an internal data acquisition bus, the bus linking control circuits, each control circuit being connected to one of the communication buses, the sensors being connected to the bus in a distributed fashion on either side of each control circuit. The data from the sensors can be transmitted to the two surrounding circuits and may be acquired if one of them is faulty.

An example embodiment includes a plurality of flight modules including a primary flight module and a secondary flight module. The embodiment includes a CAN controller, a second CAN controller, a first CAN bus configured to transmit primary control signals from the first CAN controller to the primary flight module and to the secondary flight module, and a second CAN bus configured to transmit secondary control signals from the second CAN controller to the primary flight module and the secondary flight module. The primary flight module is configured to perform functions responsive to receiving the primary control signals, and not in response to receiving the secondary control signals and the secondary flight module is configured to perform functions responsive to receiving the secondary control signals, and not in response to receiving the primary control signals.

A system for secure transfer of digital aircraft data comprising redundant data producer systems includes a first data producer, capable of producing first data, at successive moments, and a second data producer, redundant to the first system. The second data producer is capable of producing an integrity check result relating at least to second data which it produces in a manner redundant to the first data, the integrity check result being transmitted to a data consumer. The data consumer is capable of retrieving the first data and the integrity check result produced by the second system, to produce a new integrity check result from the first data and compare the new integrity check result with the integrity check result produced by the second system.

A circuit can include a CAN bus and multiple nodes. The multiple nodes can reboot at the same time so that a Time 0 is set at boot for each node. Each node can store an ID node and determine from its ID node one time slot of a plurality of periodic time slots starting from Time 0 in which to transmit on the CAN bus. Each node can transmit messages on the CAN bus in its determined time slot subsequent to Time 0.

Provided is a parallel fieldbus network-based motor control system including one or more slave modules each including a basic processor and an auxiliary processor that control one or more motors, and a master module including at least one master controller that generates command data for controlling each of the one or more motors. The master module further includes a basic network master controller, an auxiliary network master controller and a wireless network master controller, and the slave module includes a basic network slave controller, an auxiliary network slave controller and a wireless network module.

A circuit can include a CAN bus and multiple nodes. The multiple nodes can reboot at the same time so that a Time 0 is set at boot for each node. Each node can store an ID node and determine from its ID node one time slot of a plurality of periodic time slots starting from Time 0 in which to transmit on the CAN bus. Each node can transmit messages on the CAN bus in its determined time slot subsequent to Time 0.

The invention concerns an architecture for a driving assistance system with conditional automation capable of controlling an automatic emergency stop of a vehicle, comprising: a set (2) of sensors of at least three different technologies for observing an area in front of a vehicle; a main computer (10) capable of receiving, via a first upstream data communication network, information from said set (2) of sensors, and of transmitting commands, via a first downstream communication network, to a first computer (3) of an engine control system, to a second computer (4) of a braking system and to a third computer (5) of a steering control system: a backup computer (11) capable of receiving, via a second upstream data communication network, information from said set of sensors in case of a failure relative to the main computer (10); a main power supply source linked to each computer; and a backup power supply source. The architecture comprises a second downstream communication network connecting only the backup computer (11) to said second computer (4) of the braking system for the transmission of commands, and the backup power supply source is connected only to the main computer (10), to the backup computer (11) and to the second computer (4) braking system.

A CAN bus explosion proof node structure is disclosed which includes a physical parameter sensor, a physical parameter measurement circuit, a master controller, a data storage module, a communication interface module, and a power voltage and current limiting module. The master controller performs service processing of the digital signals, compares them with respective threshold levels to determine whether dangerous situations occur for the explosion proof node, and sends out an alarm when dangerous situations occur for the explosion proof node. The power voltage and current limiting module limits a maximum open circuit voltage and a maximum short circuit current of input power so that explosive gas and dust will not ignite when the nodes are in normal operation or experience failures.

A transceiver circuit for operating in a controller area network (CAN), having a CAN bus network and a control unit, that supports a flexible data rate (CAN FD), is described. The transceiver circuit comprises: a transmit CAN path and a receive CAN path; an input node on the transmit CAN path; a detection module operably coupled to the input node on the transmit CAN path and arranged to receive an input frame from the control unit before the input frame is transmitted on the CAN bus network and determine whether the input frame on the transmit CAN path comprises a CAN FD frame; and at least one switching module, operably coupled to the detection module and coupleable to the CAN bus network, where the at least one switching module is operable to impart a first voltage value on the CAN bus network in response to the input frame being determined as comprising a CAN FD frame.

A method is provided for operating a network node in a multi-node network having one or more Master Control Units (MCUs) configured to control network nodes when the one or more MCUs are available. The aspects include, in one or more memory regions of the network node having a header and a payload: storing one or more conditions in the header, storing one or more commands in the payload associated with the one or more conditions, and configuring at least one of the one or more conditions to comprise using a time base of the network node, the time base including a starting timestamp and a programmable period time T. The aspects further include, in a control device of the network node: determining, according to the time base, whether a condition stored in a header of a selected region occurs, and performing a node control action based on the determining.