FR2860610A1 - Complex equipment e.g. fleet of road vehicle, maintenance plan self-convergent method, involves controlling feasibility of determined maintenance plan at long, short and medium term levels, for establishing enforceable maintenance plan - Google Patents

Abstract

The method involves controlling feasibility of determined maintenance plan at long, short and medium term levels, for establishing enforceable maintenance plan. Operations to be industrialized and components of equipment to be modified or modernized are automatically detected with a recurrences management system. Convergence of the method is automatically controlled by an equipment performance measurement installation. An independent claim is also included for a self-convergent system for maintenance of large volume of complex equipment.

Description

Field of the invention

  The present invention relates to a self-sustaining system for the maintenance of complex equipment with a large volume.

  The invention relates to the maintenance of corn-5 and high maintenance volumetric equipment.

  This is, for example, equipment for which more than 100,000 orders of maintenance are issued per year and claiming both a very high level of security and downtime very minimized.

  lo In general, the equipment concerned may be a fleet of vehicles such as a set of railway trains and convoys, a fleet of road vehicles, a road or rail tunnel type civil engineering installation or an industrial transport facility. and manufacturing.

  State of the art The operations of execution and management of maintenance (preparation, scheduling, replenishment, closing orders, performance analysis, ..) are very generally little automated and little integrated. The more repetitive nature of the preventive maintenance operations allows in some cases more efficient control and integration than that observed for corrective maintenance operations (repairs, repairs).

  Maintenance increases with the age and the extent of the fleet to be maintained and its management becomes more and more difficult to perform, whether for maintenance performed internally or co-processed.

  As a result, each corrective maintenance operation is managed individually according to the urgency, with very low efficiency.

  The mode of urgent troubleshooting tends to generalize 30 with its consequences - the lack of visibility on the resources to implement (parts, men, tools, documentation, finances, ...), - a management of repairs to very short term strictly driven by urgency, - problems of missing and over-stocks, - longer repair time (lower productivity), - longer repair time by permanently postponing non-urgent corrective operations - the risk of prolonging the downtime of equipment in maintenance, particularly in the case of security operations or operations giving back the nominal rate of return, the increase of the risks in the security plan related to the increase in the number of repairs not yet carried out, - the risk of unscheduled shutdown of the equipment due to the irrelevance of the alleged maintenance operations and / or the delay in the processing of orders maintenance, - consequently, the increase in maintenance costs, 10 and more generally a degradation of all the maintenance indicators (see standard P X 60-020).

  OBJECT OF THE INVENTION The object of the present invention is to develop an automated self-maintenance maintenance system for handling the maintenance of complex and large volumetric equipment in an efficient manner, making it possible to control the integrated maintenance operations by a loaded system. plan and execute in the short, medium and long term, depending on the availability of equipment, avoid short-term emergency repair management, avoid supply problems or excessive stocks, shorten repair time and improve productivity, avoid the risk of increased downtime and, more generally, address security risk issues associated with increasing the number of non-repair repairs; when they should be and more generally, reduce the overall cost of maintenance while improving n efficiency.

  To this end, the invention relates to a maintenance system of the type defined above, characterized in that from the initial state of the equipment and the maintenance characteristics of its components, the system executes the processing of very urgent operations, - automatically determines a maintenance plan defining, for each component, the maintenance operations defined each by: * the date, * the means of maintenance and the maintenance conditions, * the standard time of realization and the description of the operations to be carried out, * the batch of equipment for the operation, - checks the feasibility of the maintenance plan at the long, medium and short term to establish an enforceable maintenance plan by controlling the availability of resources, heavy resources, equipment - these spares, and tools, - compose the batches of equipment for each operation, - execute the maintenance plan to the enforceable status, - follow the e performance and reacts as needed, instantly in the short, medium or long term.

  In particular, the system according to the invention comprises a diagnostic assistance facility.

  According to another interesting feature, the system performs the operation on the date with the batch then optimizes the maintenance plan automatically and convergently and takes into account the operations of industrialization of the maintenance.

  According to another interesting feature, the system performs the operation on the date with the batch then it optimizes automatically and convergent maintenance plan and it takes into account the operations of modification / modernization of the equipment.

  The invention thus allows to automatically determine the operations to be performed at given times to avoid any surprise and malfunction of maintenance operations and especially to prevent them from being made or that their execution is pushed back, resulting in possible operational difficulties related to breakdowns and, consequently, equipment shutdown.

  The system gradually reduces the number of very urgent operations to arrive at a very small number of such exceptional interventions which avoids having to push back more and more normal interventions. However, the proper execution of the latter avoids emergency interventions or at least considerably reduces their number.

  The system makes it possible to determine in a very anticipated and automatic manner the interventions to be performed. Thus, any report is taken into account immediately to characterize its cause and the mode of intervention to be prepared as well as the means to implement.

  The system according to the invention allows the execution of operations in a minimum time and in a planned manner, that is during idle time, unlike operations made necessary by a failure of a device operating in degraded mode. causing it to stop and requiring immediate intervention without preparation.

  The maintenance system automatically adapts to the information collected as the equipment evolves.

  Thus, the system modifies the maintenance plan of the component according to the feedback information concerning this component, collected during the operation.

  According to another advantageous characteristic, the maintenance plan of the component is modified as a function of external information relating to this component, provided independently of an operation performed on this component.

  The system of the invention is particularly remarkable for its self-sustaining dimension because, from the recurrence management module, it triggers the generation and updating of industrialization operations, equipment modification studies and studies. equipment modernization.

  In general, the system comprises A. a troubleshooting, capture and condition processing equipment having - a rapid troubleshooting facility for the treatment of urgent operations, - a diagnostic assistance facility, an information collector for collecting the data of the state of the equipment, an installation for analyzing this data in order to deduce the maintenance requirements, a redundancy detection and management center, a central data bank; recurrence management, B. a central planning / preparation facility having - a facility having an assistance program, P computing means and a data bank to establish the nature of the operations to be performed on the component to be performed. a calculated date, in particular establishing the range of maintenance required for the execution of the operation, - a planning installation receiving the initial state of the equipment for blir the maintenance plan, - a batch preparation facility receiving information from the planning facility to prepare batches of equipment, from the hardware list, C. a storage facility having maintenance elements and re -5 receiving planning plant instructions giving list of equipment for batch preparation, D. an operations execution facility having - at least one maintenance device for performing the maintenance operation on the equipment , as well as a state controller generating the operation execution information and component status information, - an information collector receiving the state controller information to transmit it to the plant for the central installation, E. an installation for measuring the performance of the equipment and its maintenance consisting of: - a treatment unit the life of the equipment (traceability, etc.), - a control / command system for the utilization rate in operational and degraded mode of the equipment as well as downtime of the equipment , the maintenance load and its reduction in time, the volume of spare parts consumed and its reduction over time in connection with the recurrence management unit, the overall cost of maintenance of equipment and its optimization over time, according to a multicriterion decomposition.

  F. an industrialization installation comprising: - a planning installation in connection with the planning / preparation facility, - an installation for executing the industrialization files based on the information provided by the recurrence management unit, - a control / control facility for industrialization operations in feedback to optimize its efficiency.

  G. a facility for the modification / modernization of equipment comprising: - a planning facility cooperating with the equipment data bank, - a facility for the execution of equipment modification and modernization files, - an installation control / control of modification / modernization operations in feedback to optimize efficiency.

  According to another feature, the hardware package includes hardware, documentation, and special tools to perform the operation.

  Batches of prepared material are usually replacement parts used to replace the existing subset of the equipment or its partial repair as well as special tools to perform the operation and procedure to perform the operation; that is the documentation. But, according to the invention, industrialization batches are produced for a component on which one intervenes or even batches of modification / modernization to replace a component or group of components by another component or another group of components.

  According to another characteristic, industrialization files and industrialization batches for a component are produced.

  Industrialization lots include tooling, test bench, and all equipment necessary for the industrialization of a maintenance operation triggered by the system.

  According to another characteristic, modernization files and upgrade packages for a component are produced as well as modification files and modification packages for a component.

  The modification and modernization batches provide the spare parts and tools for carrying out the modification / modernization operations triggered by the system.

  Finally, the system includes a redundancy detection and management center and a recurrence management center.

  The redundancy detection and management center automatically identifies multiple reports related to a given equivalent and equipment and a given failure and eliminates redundant reports.

  The recurrence management center identifies repetitive maintenance operations on the same equipment or system and then orders the completion of the modification or modernization file for the entire fleet of equipment.

  Drawings The present invention will be described below in more detail with the aid of embodiments of automated maintenance systems according to the invention shown in the accompanying drawings in which: FIG. 1 is a general diagram of the system of the invention; FIG. 2 is a more detailed diagram of the maintenance system according to FIG. 1, FIG. 3 is a diagram of the maintenance system according to the invention describing precisely the autoconvergence operations triggered by the industrialization installation. FIG. 4 shows the maintenance system according to the invention particularly describing the autoconvergence operations triggered by the modification / modernization installation, - FIG. 5 shows a machining and replacement plant for the axles of a railway material. and FIG. 6 shows an integrated maintenance facility for alerts issued by railway equipment.

  Description of embodiments

  According to FIG. 1, the invention relates to a self-converging system for the maintenance of complex equipment with high volumetry. This maintenance system applies to an equipment E formed of components Ej having, at a given instant, a state Eji. The initial state of the EIA equipment and the maintenance characteristics of its components Ej are defined according to the usual industrial rules and methods.

  From this information INF-Ej, the system calculates a maintenance plan PM by determining, for each component Ej, OPji maintenance operations. Each of these operations is defined by the date Tji at which it must be performed, the nature of the operation to be performed NOji and the list of hardware Lji necessary for this operation.

  According to the invention, the detection and the preparation of the operation is carried out sufficiently in advance so that the operation does not have to be made under emergency conditions as in the current practice. The nature of the operations to be performed NOji is defined according to the maintenance characteristics of the components, that is to say the cycle of partial or total replacement of this or that component of the equipment.

  The list Lji of the materials necessary for the operation OPji includes, in addition to the maintenance material Mji, the means necessary for the execution of the operation such as the special tooling OSji as well as a documentation DOji, with the procedure for the execution of the operation.

  Starting from the list Lji of the operation OPji, an installation I-K composes batches of material Kji for each operation OPji to be performed. These Kji batches are prepared according to the date on which the operation Tji must be performed; they also include OSJ special tools for the execution of the operation, excluding the usual tools available, and DOji documentation and execution procedure.

  Kji batches are provided at the I-EO facility running the OPji operation. This installation or, more generally, the means performing the intervention may receive directly the information concerning the operation to be performed and, in particular, the global definition of the operation OPji with the execution date Tji, the list of the pieces Lji necessary to the operation and the nature of the operations to be carried out in such a way as to allow the advance verification of the receipt of the lots and their preparation for the operation, for example the integration of the lots into the installation carrying out the operations I -EO.

  According to an advantageous characteristic of the system, in order to increase its efficiency and to take account of parameters changing over time and in a manner that is difficult to predict, the system modifies the maintenance plan PM of a component Ej according to the feedback information. relating to this component Ej via the I-IND industrialization, I-MOD modification and I-MOL modernization facilities.

  This feedback information I-Rji are captured or introduced at the time of performing the maintenance operation OPji on the equipment Eji (equipment Ej at a given time i).

  This information makes it possible, for example, to modify, and in particular to reduce, the frequency of replacement of a component according to the evolution of the wear thereof, always as a function of parameters that are unforeseeable, difficult to predict or whose Precise forecast could not be made initially. Under these conditions, the system is intelligent and self-evolving since it integrates the information collected at each moment to evolve and be constantly updated.

  It is also possible to modify the maintenance plan PE of the component Ej according to external information INF-EXj concerning this component and provided independently of a maintenance operation OPji, by an external source INF-EX. This information and updates may result from new processes for the manufacture of parts that are part of the maintenance part lot for the component and that, as a result, allow for a re-scaling of the part replacement program by either lengthening the part interval between two interventions either by a simplification of the operation, a modification of the tooling or the use of non-specialized tools and more generally a modification and simplification of the procedure of execution of the maintenance operation.

  Figure 2 shows a more detailed diagram of a maintenance system according to the invention.

  This system consists of an I-C central facility with an I-P planning facility that establishes the PM maintenance plan for the E / Ej equipment. This installation comprises cal-cul means P, a database BD and planning programs PR-PL.

  The database BD contains the state of the equipment Ej and the scheduling programs PR-PL consist of the scheduling programs of maintenance operations and renewal of the components Ej of the equipment E. This database BD receives the initial information INF-Ej of the EIE information source of the initial state of the equipment, processes the redundancies and determines the occurrence frequency of a failure.

  In a system according to the invention, the redundancies correspond to the emission of several reports for one and the same failure. This emission comes from separate sensors that all detect a possibly different sign but having originated the same failure or failure.

  A recurrence according to the present invention is the repetition of the same failure.

  According to the invention, the system consists of a start-up, capture and I-DCT processing of the state of the equipment. This facility collects equipment status data through a CI-DCT information collector. It carries out the intervention requests thanks to the help of the I-AD diagnosis and carries out rapid repairs for the treatment of urgent operations.

  Another advantage of this installation is the deduction of maintenance requirements by an I-AS analysis system, the detection of redundancies with the plant (CDGR) and the identification and management of recurrences with the plant (CGR).

  The I-C central facility also includes an I-K batch preparation facility, which prepares Kji maintenance batches.

  The central plant IC is connected to the EIE information source of the initial state of the equipment, to the I-ST storage facility and to the I-T transport facility for the transfer of Kji lots. When the nature NOji of the operation OPji is calculated, the list Lji is transmitted to the storage facility I-ST so that it prepares the objects of the list and transmits them to the installation I-K. Information about the OPji operation is also passed directly from the I-P facility to the I-EO runtime facility.

  The I-ST storage facility has the DO documentation, the special OS tooling, and the M hardware needed for the Kji batch realization.

  The central I-C facility receives the I-Rji feedback information from the I-EO facility that performs the maintenance operations.

  The I-EO installation receives the components Eji which must undergo an operation OPji on the date Tji. This I-EO installation consists of PPH-M maintenance devices with a C-EM maintenance status monitor and a C-I information collector. The maintenance devices are managed by the information collector which schedules the operations and their progress as well as their good execution. The information collector C-I also collects information on the state of the components Ej for example before and after the intervention. From this information, the collector establishes the feedback information IRji for updating the database BD and used with the planning programs, to modify the planning of operations OPji according to the evolution of the components Eji and the frequency of the maintenance operations that they require.

  From the I-P planning plant's implementation orders, the I-IND industrialization, I-MOD modification and I-MOL modernization facilities make it possible to converge the maintenance system.

  Thus, and as already indicated, the system progressively reduces the number of very urgent operations, avoiding having to postpone cumulated normal interventions whose non-performance in turn causes the need for other emergency interventions that accumulate until total blockage.

  In contrast to this situation, the invention gradually reduces the number of emergency interventions to the incompressible minimum.

  Figure 3 shows a diagram of the maintenance system according to the invention detailing the industrialization installation. This maintenance system comprises, in addition to the installations already described with reference to FIG. 2, a P-DISPO availability driver connected to the I-P planning installation. It is also connected to external information sources such as the state of the E-E equipment and a source signaling the B-E equipment requirements. Based on these different information transmitted to the I-P planning facility, the latter establishes a PM maintenance program taking into account the availability of the equipment.

  The troubleshooting, capture and processing (I-DCT) installation includes, among other things, a recurrence management unit.

  This CGR recurrence management system records the history of events and interventions to exploit their frequency and repetition and to facilitate self-learning of the system.

  From the execution orders of the I-P planning installation, the I-IND industrialization installation ensures the self-maintenance of the equipment maintenance system.

  The I-IND industrialization installation includes: - an I-IND-P planning facility which programs in the medium and short term the realization of the industrialization files according to the information provided by the CGR recurrence management center and under control of the central installation IC, - an execution facility of the I-IND-D industrialization files which designs the K-Iji industrialization batches in order to reduce the maintenance time, - a control installation / I-IND-CC control which controls the effective reduction of the maintenance times of the industrialized operations and launches the corrections of the files of industrialization when necessary.

  The I-C central plant prepares K-Iji industrialization batches in addition to the K-Mji maintenance batches for the I-EO maintenance facility. The K-Iji industrialization batches are sent to this plant which, in addition, the PPH-M maintenance peripherals also includes PPH-I industrial peripherals. The CI information collector collects the peripheral information. maintenance and those of the peripheral devices PPH-I industrialization.

  FIG. 4 shows the maintenance system according to the invention, which, in addition to the means already described for the maintenance system of FIG. 3, prepares, from information and new component studies INFCN, modification and modification batches. K-MOji modernization; the IEO Runtime installation includes PPH-MO upgrade devices to replace old Eji components with new ENji design components. The new ENji components, studied and manufactured, are available in the I-ST storage facility; they are trained to compose modernization batches used under the conditions set by the I-P planning facility.

  According to an advantageous characteristic of the system, in order to increase its efficiency by reducing equipment failures, the system orders modification files from the information provided by the CDR recurrence management unit.

  The I-MOD modification facility includes - an I-MOD-P planning facility which programs in the long, medium and short term, the realization of modification files according to the information provided by the recurrence management unit and under piloting the IC central facility, - an I-MOD-D change folder execution facility that designs K-MOji change kits to reduce failures, - a control facility for change operations I- MOD-CC in feedback to increase efficiency.

  According to another advantageous characteristic of the system, in order to increase its efficiency by guaranteeing the operation at the nominal state of the equipment throughout its lifetime, the system controls modernization files on the basis of the information collected by the system. I-AS analysis.

  The I-MOL modernization facility includes - an I-MOL-P planning facility which programs from the very long term to the very short term, the realization of the files of modernizations, - an installation of execution of the files of modernization I-MOL-D which designs K-MOji upgrade kits for the purpose of ensuring nominal operation over the entire service life of the equipment, - a control installation for the I-MOL upgrade operations. CC feedback to increase efficiency.

  According to the invention, the installation measures the performance of the I-MP equipment and its maintenance which constitute a set of counters necessary for the autoconvergence functions.

  This I-MP installation consists of a unit for processing the life of the UTE equipment which traces all the maintenance interventions from the commissioning of the equipment or its sub-assembly to their end of life.

  The I-MP installation also includes an I-CCPERF control / command facility which performs the measurements to control the I-C central plant.

  These measures concern the rate of use in operational and degraded mode of equipment, equipment downtime, the maintenance load and its reduction over time, the volume of spare parts consumed and its reduction in time, the overall cost of maintenance of the equipment and its optimization over time according to a multi-criteria decomposition.

  The present invention will be described more particularly with the aid of two machining and maintenance installations applied to the maintenance of railway equipment: In the machining and replacement plant, the information concerning the state of the The equipment comes from two fixed station measurement benches, while in the integrated maintenance facility, reports are issued by the equipment itself using sensors and on-board processing units.

  The machining and replacement installation shown in FIG. 5 corresponds to the general diagram of FIG. 3 and the integrated maintenance installation represented in FIG. 6 corresponds to the general diagram of FIG. 4.

  According to FIG. 5, the machining and replacement plant for railway equipment axles comprises a facility for troubleshooting, capturing and processing I-DCT equipment, a central installation IC, a I-ST storage facility, - an I-EO runtime facility, - an I-MP performance measurement facility, an I-IND industrialization facility, - an I-MOD upgrade / upgrade facility.

  The I-DCT equipment troubleshooting, capture and treatment installation is composed of two CI-DCT control benches for the wheels of railway vehicles (load cells, ultrasonic testing, etc.). I-AS data storage and analysis, a CDGR redundancy check module and a CGR recurrence check module.

  The central installation IC is composed of an IP planning installation which determines in the medium term the resource requirements (machines, axles, tools, ..) and in the short term programs the operation of removal or machining of the wheels. function of the execution parameters (availability of supplies, tools, machines, ...). This I-P installation determines the composition of the batch Kij to be prepared to carry out a series of operations concerning, for example, all the axles of a train.

  It also comprises an I-K preparation facility which produces the Kij batch of the tools and axles necessary for the series of operations for changing or machining the wheels of the train from an I-ST storage facility.

  The I-ST storage facility has the necessary axles, tools and documents to prepare the batches needed to perform the operations of changing or machining the wheels of a train.

  The I-EO execution installation of combined wheel machining or axle removal operations, as the case may be, a pit tower or a train lifting system (PPH-M). This installation integrates a three-dimensional C-EM measuring machine which carries out the control during and at the end of the machining operation and sends the measurements back to the I-C central installation.

  The I-MP performance measuring system determines the average potential of the wheels per wagon type and an I-IND industrialization installation makes it possible to reduce the machining times with the installation of processes such as the remote control movement of the car. train, the simultaneous machining of two axles (4 wheels) and the machining without uncoupling of the two trainsets.

  The I-MOD modification / modernization of the wheels increases the service life of the wheels and the rail by optimizing the rail / wheel interface by optimizing the profile of the rail, the profile of the wheels, the hardnesses of the materials used for the wheels. wheels and rails.

  According to Figure 6, the integrated maintenance facility for reports issued by railway equipment includes - a facility for troubleshooting, capturing and processing the status of the 10 I-DCT cars, a central IC facility, I-ST storage, I-EO operations execution facility, I-MP performance measurement facility, I-IND industrialization facility and - I-MOD upgrade / upgrade facility.

  The I-DCT Wagon Troubleshooting, Capture and Condition Processing Facility is comprised of CI-DCT sensors and on-board processors with an emergency reporting algorithm that takes into account the impacted functions of the equipment, the recurrences as well as external parameters (air temperature, traffic, ...). The processing unit transmits during the operation of the train, when passing in front of the capture terminals, urgent reports to a FAR service center that carries out the palliative maintenance operations, for example, the insulation of the brake system. at a tight brake detection. The other reports (air conditioning fault, cooling of a traction converter, etc.) are transmitted to the central installation I-C.

  The central installation IC is composed of an IP planning installation which automatically determines, in the medium term, via the standard maintenance phases, the resource requirements (parts, labor, ..) for all the operations to be performed. realize that they are preventive, corrective, predictive, modification or modernization. This planning is transmitted to suppliers for delivery / replenishment of spare parts (air conditioning pressure switch, ABS speed sensor, oil circulation pump for corrective action, filters and greases for preventive intervention, etc.). This IP scheduling installation triggers, in the short term, following an automatic control of availability of resources (parts, labor, ..), the production plan corresponding to all the operations to be performed during the next train stops. for maintenance. The validation of this plan will activate the I-K installation which carries out the kit of tools and spare parts necessary to the realization of the plan of production established by the installation of planning I-P. This installation triggers the installation of batch transfer j-i to the execution areas of operations.

  The I-ST storage facility has parts (air-conditioning pressure switch, speed sensor, oil circulation pump for the fix, filters and greases for the preventive, ...), tools and digital documents needed. troubleshooting, technical data sheets, maintenance instructions ...) when carrying out maintenance operations. This facility is characterized by a very high level of reliability of stocks.

  According to the series to be produced, the I-EO operating installation comprises means of removal / installation, cleaning, automated to varying degrees.

  The I-MP performance measurement system makes it possible to control the autoconvergence of the system.

  This performance measurement system enables more vehicles to be processed, reduces the load of subcontractors and delays in maintenance operations, reduces downtime and thus uses the entire fleet of vehicles at rush hour. It also reduces inventory and prevents stockouts.

  The industrialization installation I-IND automatically detects by algorithmic (task weight, frequency, ..) the standard maintenance phases to be industrialized to reduce the downtimes and the time of realization, for example the systematic replacement of wear parts on the bogies. This installation realizes the files of industrialization and controls the obtained efficiency. These industrialization files use digital simulation and optimization of physical and administrative flows.

  The I-MOD modification / modernization plant detects potentially dangerous equipment in the medium term, expensive equipment or that will show heavy drift in the short and medium term, for example the degradation of the electrical, hydraulic and pneumatic underbody networks. corrosion, .... This installation executes the definition files by integrating the data of the feedback and recurrence management modules in order to reduce maintenance costs. It establishes the associated numerical documentation for feeding diagnostic assistance and conducting maintenance operations. io

Claims (6)

  1) A self-maintenance method for the maintenance of complex equipment with a high volumetry, characterized in that from the initial state (EIE) of the equipment (E) and the maintenance characteristics of its components (Ej), - the processing of very urgent operations (OPUji) is carried out, - a maintenance plan (PM) is automatically determined, - the feasibility of the maintenance plan (PMji) is automatically checked at long, medium and short term to establish a enforceable maintenance plan (PMEji) by controlling the availability of resources (RFji), (GRji), heavy resources (Mji), spare parts (PDji), and tools (OUji), and - we compose the batches of equipment (Kji) for each operation (OPji), 15 - the operations to be industrialized are automatically detected with a recurrence management system (CGR), - it is automatically detected with the same system for managing recurrences (CGR) the components to be modified or to modernize, - the convergence of the process is automatically controlled by the equipment performance measuring installation (IMP).   2) Method according to claim 1, characterized in that - for each component (Eji) - the maintenance operations (OPji) defined each by: * the date (Tji), * the maintenance means are defined (MMji) and the maintenance conditions (CMji), * the standard time of realization (TSji) and the description of the operations to be performed, - the hardware batch (KMji) for the operation (OPji).   3) Method according to claim 1, characterized in that the maintenance plan (PE) of the component (Ej) is modified according to the feedback information (IRji) concerning this component (Ej), collected during the operation ( OPji).   4) Method according to claim 1, characterized in that one modifies the maintenance plan (PE) of the component (Ej) as a function of external information (INF-Exj) relating to this component (Ej), provided independently of an operation (OPji) performed on this component.   5) A self-maintenance system for a complex equipment with a high volumetry, characterized in that it comprises A- a facility for troubleshooting, capture and treatment (I-DCT) of the state of the equipment with - a rapid troubleshooting facility for the treatment of urgent operations (FAR), - a diagnostic assistance facility (I-AD), - an information collector (CI-DCT) for the collection of data of the state of the equipment, - an analysis facility (I-AS) for this data to deduce maintenance requirements, - a redundancy detection and management center (CDGR), - a recurrence management center (CGR).   B- a central facility (IC) having - a planning facility (IP) with a planning program (PR-PL), calculation means pP and a database (BD) to establish the nature ( NOji) operations (Oji) to be performed on the component (Eji) at a calculated date (Tji), in particular by establishing the list of hardware (Lji) necessary to perform the operation (OPji), - the installation planning (IP) receiving the initial state of the equipment (Ej) to establish the maintenance plan (PE), - a batch preparation facility (IK) receiving information from the planning facility (IP) for preparing batches of equipment (Kji), from the equipment list (Lji), C- a storage facility (I-ST) having maintenance elements (Mji, OSji, DOji) and receiving instructions of the planning facility (IP) giving the list of material (Lji) for batch preparation (Mji), D- an installa I-EO having - at least one maintenance device (PPH-M) for performing the maintenance operation (OPji) on the equipment (Eji), as well as a state controller (C-EM) generating the operation execution information (OPji) and the component state supplementary information (Eji), - an information collector (CI) receiving the state controller information (C) -ET) to transmit them to the planning facility (IP) of the central installation (IC), Eune installation of measurement of perfoi Iliances of the equipment and its maintenance (I- MP) composed: - d ' an equipment life processing unit (UTE); - a control-command facility (I-CCPERF) which measures the utilization rate in operational and degraded mode of the equipment as well as the operating times; equipment outages, the maintenance burden and its reduction over time, the amount of spare parts consumed and its over time, the overall cost of maintenance of the equipment and its optimization over time according to a multicriterion decomposition, this installation controls the central installation (IC) according to the result of its measurements, F- an installation industrialization system (I-IND) comprising: - an industrialization file execution facility (I-IND-D), based on information provided by the recurrence management center (CGR), a planning facility ( I-IND-P) in connection with the planning / preparation (IP) facility, - a control-command facility (I-IND-CC) industrialization operations in feedback to optimize efficiency, G- an installation modification (I-MOD) and modernization (I-MOL) 30 of the equipment each comprising: - a planning facility (I-MOD-P) or (I-MOL-P) in relation to the data bank (BD) equipment, an installation running folders of modification (I-MOD-D) or modernization (I-MOL-D), - a control facility for modification operations (I-MOD-CC) or modernization (I-MOL-CC) in feedback for optimize efficiency.   6) System according to claim 5, characterized in that it comprises a central detection and redundancy management (CDGR), 5 - a recurrence management center (CGR).