Cassidian Sas

Airbus Ds Sas

Jean-Philippe Deloison

Hervé Mokrani

Oliver Koczan

Fédéric Rousseau

Olivier Koczan

A guidance system (SG) for an individual (IND) moving in an unknown environment establishes a guidance loop (B) between a measurement module (MM) placed on the individual and a remote guidance platform (PG). In the measurement module, a means (CP) collects measurement data (DM) that are transmitted by another means (UC) of transmission to the guidance platform via a first communication channel. Then, at the guidance platform, a means (UT) determines the tactical position data (DST) from the transmitted measurement data (DM), and another means (UC) transmits determined guidance data (DG) from the tactical position data to a communication device of the individual by means of a second communication channel (R), thus closing the guidance loop.

Guidance system for an individual in an unknown environment and method for implementing such a system

A method for producing a proof of the presence and/or of the availability of an entity in a site over a period that is greater than or equal to a presence threshold, the method including: successively transmitting messages, the messages being generated from a secret such that the secret may be reconstituted by having the knowledge of a given number of messages that is greater than or equal to a threshold, each message being transmitted over a transmission period whose duration is chosen such that the product of the duration of the transmission period times the threshold is substantially equal to the presence threshold; comparing the secret and a secret candidate generated from messages received by the entity; the proof being produced only if the secret and the secret candidate are equal.

Method of producing a proof of presence or of operation of an entity in an identified zone for a duration greater than a given threshold, and monitoring system

Growing community of inventors

Serans, France

Jean-Philippe Deloison