Abstract: A system for detecting and locating failures that occur in a complex system includes elements (CAP, MODVAL, MODDP, MODFD) for detecting and locating a failure affecting at least one sub-system of the complex system. The system also includes an element (MODPD) for making a decision on any action to be taken in the event of such detection. A rocket engine can be monitored with this system.

Abstract: A system for detecting and locating failures that occur in a complex system includes elements (CAP, MODVAL, MODDP, MODFD) for detecting and locating a failure affecting at least one sub-system of the complex system. The system also includes an element (MODPD) for making a decision on any action to be taken in the event of such detection. A rocket engine can be monitored with this system.

Abstract: The invention relates to a device for validating measurements of a dynamic magnitude x coming from an article having main sensors placed thereon on three main axes for measuring of said dynamic magnitude x. The device includes at least two additional sensors for measuring at least two additional components of the dynamic magnitude. The additional sensors are placed on the article on at least two additional axes that are concurrent with the three main axes and that are not contained in any of the planes defined by any pair of the three main axes. The device further includes a unit for determining an estimator U representative of the dynamic magnitude from the components; and means for validating the determination of the estimator U representative of the dynamic magnitude, as well as an error detector and a localization unit for locating valid components of the dynamic magnitude.

Abstract: The invention relates to a device for validating measurements of a dynamic magnitude x coming from an article having main sensors placed thereon on three main axes for measuring of said dynamic magnitude x, the device including at least one additional sensor for measuring at least one additional component of the dynamic magnitude, said additional sensor being placed on the article on at least one additional axis that is concurrent with the three main axes and that is not contained in any of the planes defined by any two of the three main axes; means for determining an estimator U representative of the dynamic magnitude from the components; and means for validating the determination of the estimator U representative of the dynamic magnitude.