Patent application number | Description | Published |
20090292951 | METHOD AND DEVICE FOR FAULT LOCATION IN A SYSTEM - The invention relates to a method and a device for locating a fault in a system. The system includes a set of elements. The elements are connected in a network. Each element is associated with an operational status and a probability of failure. The method according to an embodiment of the invention includes, for each of the elements having a status indicating a malfunction, denoted as a defective element, the creation, from the system topology, of an expression comprising terms corresponding to functional elements connected to said defective element. If several expressions have been created in the preceding step, then merge expressions having at least one term in common. For each expression, delete terms in the expression corresponding to elements having a “healthy” status. Calculate a minimal expression from the preceding expression. Calculate failure probabilities for selected members of the minimal expression based on failure probabilities of the corresponding elements. Calculate the location of the fault to the elements corresponding to the members of the minimal expression for which the ratio of failure probabilities to exposure time is greater than a threshold. | 11-26-2009 |
20090306838 | METHOD AND DEVICE FOR AIDING THE MAINTENANCE OF A SYSTEM - The invention relates to a method for aiding the maintenance of a system, the system comprising a set of networked elements, the system being accompanied by indications defining subsets of networked elements E | 12-10-2009 |
20110040441 | DEVICE FOR SYSTEM DIAGNOSIS - The invention relates to a device for system diagnosis of an aircraft. The device includes: means for the monitoring of equipment of the system, the means for emitting messages of observations on the basis of effects produced by equipment; means for the determination of a set of observations on the basis of the messages of observations arising from the monitoring of a log of the messages of observations and of a model representing a current state of the system; means for the determination of indictments on the basis of observations of the set of observations and of a behavioural model of the system, the indictments being logical relations between operating modes of equipment having produced effects; and means for the determination of maintenance operations on the basis of the indictments. | 02-17-2011 |
Patent application number | Description | Published |
20080215194 | FORMULATION OF A PREVENTIVE MAINTENANCE MESSAGE RELATING TO THE FUNCTIONAL DEGRADATIONS OF AN AIRCRAFT - A method of preventive maintenance is disclosed for an aircraft. The aircraft includes components, including items of equipment of the aircraft and/or electronic modules and/or physical links. The lifetime information for the components is known. The aircraft also includes means for monitoring the components, a centralized maintenance system, and means for estimating the life time of the components. The aircraft carries out a set of functions, each being ensured by a chain of components. The method comprises several steps including, a first step of locating the degradations of the items of equipment, a second step making it possible to allocate the located degradations to the various functions of the aircraft, a third step of estimating the lifetime of the functions identified in the second step, and a fourth step of formulating the maintenance message constructed on the basis of the previous steps. | 09-04-2008 |
20080269982 | Fault Validation Method and System for Aerodynes - The present invention relates to a fault validation method and system for aerodynes. The method includes at least a configuration step associating with each detectable fault equipment units for which a copy of memory segments is to be made. Verification tests to be performed include a step for copying memory segments and a step for verifying equipment units. | 10-30-2008 |
20080304418 | MAINTENANCE SYSTEM FOR A SET OF EQUIPMENT - The invention relates to a maintenance system for a set of equipment of an aircraft, forming a physical network ( | 12-11-2008 |
20100010708 | Methods of Identifying Flight Profiles in Aircraft Maintenance Operations - The method of identifying a flight profile of an aircraft, the aircraft including a centralized maintenance system and an item of equipment including a component designed to measure the environmental conditions, comprises:
| 01-14-2010 |
20100125379 | Device Allowing Improvement in Maintenance Procedures for Onboard Equipment - The present invention relates to the field of aiding ground maintenance of an aircraft. More particularly, the invention consists of a portable access terminal intended to aid maintenance, commonly designated by the acronym PMAT for Portable Maintenance Access Terminal. | 05-20-2010 |
20110254704 | Device for Formulating the Alerts of an Aircraft System - A system and device is provided for formulating alerts of the items of equipment of an aircraft. The device includes a database of virtual objects representing the items of equipment for constructing a virtual model representative on the one hand of the topological configuration of the network of items of equipment and on the other hand of the configuration of the chain of functional applications implemented by the items of equipment, means for each virtual object to formulate a request for consulting the status of the functional application carried out by the item of equipment associated with the object and means for detecting alerts for formulating requests for consulting the status of each of the objects of the virtual model so as to detect anomalies of configuration of the topology of the network of items of equipment and of the chain of functional applications of the virtual model and to transmit the alerts associated with the anomalies. The device detects and manages the alerts of an aircraft. | 10-20-2011 |
20140163782 | Aircraft data management system - An aircraft data management system comprises a first storage device for data representative of operating parameters of the aircraft, the first device being situated on the ground, and second storage device for data representative of parameters of said aircraft, the second device being embedded onboard said aircraft. The system also comprises a device for accessing the data contained in said first and second storage devices. The system also comprises a device for determining the stopping of the aircraft on the ground, a device for synchronizing the data contained in the first and second storage devices, according to information from the determination device. Furthermore, the access device also being designed to select the first or the second storage device to access the data, according to the information from the determination device authenticate a user accessing the data. | 06-12-2014 |