Safran Electronics & Defense

Thiebault Jeandon

Patrice Toillon

Nicolas Fanton

Emmanuel Couturier

Cédric Moreau

A method and a system for transmitting data in a carrier sense multiple access wireless network wherein a plurality of data transmission devices send respectively at least one data frame at different moments from each other. Each transmission device, when it is initialised: loads the final value of a first, second and third counter, triggers the second counter as from its initial value, triggers, when the second counter has arrived at its final value, the first, triggers, when the first counter has arrived at its final value, the third counter, which is reinitialised to its initial value and retriggered whenever the presence of data is detected on the radio medium, transfers at least one data frame when the third counter has arrived at its final value.

Method and device for transmitting data in a wireless network

The invention relates to a method for communicating data between communication equipments, where the first communication equipment (EqptN) is put into the emission mode (Xmit) for the frame (TrN) containing its identification (D_PID), while each second communication equipment (Eqpt, EqptN+1, EqptN+x) is put into the receiving mode (Rcv), then the equipment (EqptN) is put into the receiving mode (Rcv),

Method, equipment, communication program, on-board device having these equipments

A central communication unit (), comprising:

Wireless communication system with central communication unit arranged to communicate with subscriber communication units

A monitoring system including pieces of measuring equipment and an LPWAN reception terminal. Each piece of measuring equipment has a sensor arranged to measure a parameter of the aircraft, an LPWAN antenna and an LPWAN transmitter, an independent power source that powers the piece of measuring equipment, a main cut-off member connected between the independent power source and the LPWAN transmitter, and a main control component arranged to monitor operating parameters of the LPWAN transmitter and to open and close the main cut-off member selectively as a function of the operating parameters.

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Boulogne-Billancourt, France

Thiebault Jeandon