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CN-121979923-A - Fault library management and multiplexing method based on hierarchical structure coding

CN121979923ACN 121979923 ACN121979923 ACN 121979923ACN-121979923-A

Abstract

A fault library management and multiplexing method based on hierarchical structure coding belongs to the field of fault detection. Aiming at fault mode analysis of equipment in different types of applications, firstly, historical fault information of the same equipment in a plurality of types is collected and preprocessed, then, preprocessed fault information data are modeled, then, a processing measure form and an association relation with the fault mode are established, the construction and management of a fault library are completed on the basis of the work, and finally, a multiplexing method of the fault library is established. The problem that the same equipment is used by a plurality of models and the fault mode is repeatedly built is solved, and the aims of rapid positioning of faults, consistency of equipment fault library management, integration of equipment fault phenomena, standardization of equipment fault analysis and high efficiency of equipment fault processing are achieved.

Inventors

  • CHEN WENJING
  • CAO WEIWEI
  • TIAN JIANYU
  • WANG YUMENG

Assignees

  • 北京航天自动控制研究所

Dates

Publication Date
20260505
Application Date
20251231

Claims (6)

  1. 1. The fault library management and multiplexing method based on the hierarchical structure coding is characterized by comprising the following steps of: Step1, collecting historical fault information of the same equipment in multiple models, and carrying out structuring treatment to generate structured fault information; Step 2, converting the structured fault information into a hierarchical structure coding table; step 3, constructing a fault information model by using a fault diagnosis modeling tool based on the hierarchical structure coding table; Step 4, establishing an index table of fault mode codes, fault reasons, fault scenes, fault influences, fault detection methods and treatment measure information, and constructing a fault library and a management method; and 5, establishing a multiplexing method of the fault library.
  2. 2. The fault library management and multiplexing method based on hierarchical coding according to claim 1, wherein in step 1, the workflow is as follows: (1) Collecting historical fault information of the same equipment in a plurality of models, wherein the historical fault information data comprises fault modes, fault reasons, fault scenes, fault influences, fault detection and processing measures; (2) Determining a fault diagnosis isolation level, namely determining the fault diagnosis isolation level according to the external field maintenance guarantee requirement, isolating the fault to a field replaceable unit level, namely an equipment level, for electrical system equipment; (3) Analyzing fault modes according to device types, wherein a) the main functions of control type devices comprise instruction sending, state inquiring and data transferring, the control instructions define fault modes according to whether the instructions are on functions or off functions, the state inquiring can inquire according to states, the state inquiring is normal, the state inquiring is abnormal, the data transferring is according to data sending is normal, data sending is abnormal, data receiving is normal, data receiving is abnormal, the fault modes are defined according to data receiving is abnormal, b) collecting devices analyze the functions of each collecting channel respectively, each channel is defined as state collecting is normal and state collecting is abnormal according to functions, c) the communication devices distinguish half duplex and full duplex communication according to physical link conditions, the half duplex type is a shared communication link, the fault modes are defined as communication interruption and communication error, the receiving and sending of the full duplex type communication are respectively provided with an independent link, the fault modes are defined according to four conditions, namely communication transmission interruption, communication transmission error, communication reception interruption and communication reception error, d) the fault modes of the electrical connectors are inserted between the devices, the fault modes are described to be refined to a needle, the device level fault modes of the electrical connectors are used as corresponding fault level fault modes of high-function level circuit level change, and reactive power level units can reflect the fault level units of the fault level change to a reactive power level workshop; (4) The method comprises the steps of analyzing fault reasons and influences, wherein when the fault reasons are analyzed, if a fault mode is transmitted by the fault mode influences of a lower one of the contract layers, the fault reasons of the lower one of the contract layers are listed together, and if the influence of the fault mode on the higher one of the contract layers is multiple, the fault influences are listed one by one; (5) The fault scene analysis is divided according to all the test states of the equipment in the system, including single machine test, system test and outfield test; (6) The fault detection method mainly comprises the steps of power-on BIT detection, period BIT detection, maintenance BIT detection, external field test equipment detection, external field manual inspection, internal field test equipment detection and internal field manual inspection, wherein the external field manual inspection refers to whether a user only judges faults by visual and aural inspection without using detection instrument equipment when the device is used at a base level; (7) Process measure analysis, including altering the design, process, and software, replacing a failed device or module, repairing a failed device or module, and adjusting or changing the operation or method of use of the device; (8) Generating a fault information structured processing form, wherein the fault information structured processing form comprises a device code, a device name, a fault mode name, a fault reason, a fault scene, a fault influence, a fault detection method and processing measures, and the fault influence comprises a local influence, a higher-level influence and a final influence.
  3. 3. The fault library management and multiplexing method based on hierarchical coding according to claim 1, wherein in the step 2, the workflow is as follows: (1) The method comprises the steps of carrying out a fault information structuring processing form, analyzing and obtaining a hierarchical structure of a system and fault information, carrying out a hierarchical structure coding on system equipment after the structural hierarchy is divided, carrying out redundancy and hot backup on the equipment with the same model, and carrying out the respective coding on the system according to the equipment, wherein the method comprises the following steps: system symbol 01; single symbol: 01-01, 01-02. Board card symbol 01-01, 01-01-02..the third party, 01-02-01, 01-02-02..the fourth party; when a certain level does not exist, 00 is used for replacing; (2) The fault mode coding rule is that fault mode coding= "equipment name and code number coding" +sequence number, and the form is 01-01-FM01; (3) In other fault information storage modes, information such as fault mode names, fault reasons, fault scenes, fault influences, fault detection methods, processing measures and the like in the fault information structured processing form are only displayed as character strings in the fault information modeling tool, and information association is not needed, so that coding processing is not needed. (4) The hierarchical structure coding table for forming fault information is output, and the hierarchical structure coding table comprises a hierarchical structure code, a fault mode, a fault reason, a fault scene, a fault influence, a fault detection method and processing measures, wherein the fault influence comprises a local influence, a higher-level influence and a final influence.
  4. 4. The fault library management and multiplexing method based on hierarchical coding according to claim 1, wherein in the step 3, the workflow is as follows: (1) Building a system equipment model, namely building models among system equipment, component boards and boards by using a graphical language through a fault diagnosis modeling tool based on hierarchical structure coding; (2) The fault mode model building comprises the steps of judging a fault mode building level according to the level required to be isolated, building a model through a fault diagnosis modeling tool, building a fault mode dependency relationship below a field replaceable unit level unit if the fault isolation is required to the field replaceable unit level, building a standby structure model diagram at each layer above the field replaceable unit level, building a fault mode dependency relationship below a workshop replaceable unit level or a functional circuit if the fault isolation is required to the workshop replaceable unit level or the functional circuit, and building a device structure model diagram at the level above the workshop replaceable unit level or the functional circuit.
  5. 5. The method for managing and multiplexing fault base based on hierarchical structure coding according to claim 1, wherein in step 4, the workflow is as follows, a fault mode index table is built by using fault mode codes as unique index values according to fault mode names, fault scenes, fault reasons, fault influences, fault detection methods and processing measures, a tree structure of the fault modes is formed, fault base codes containing all information of a certain fault are generated, and the building of the fault base is completed.
  6. 6. The fault library management and multiplexing method based on hierarchical coding according to claim 1, wherein in step 5, the workflow is as follows: (1) Keyword searching, namely inputting an accurate name of a fault mode or keywords in the name in a fault library, and searching a fault information model or a related model corresponding to the name or the keywords; (2) The method comprises the steps of carrying out model sorting, sorting the sorting conditions, integrating the searched information, outputting the integrated information to a fault diagnosis modeling tool for multiplexing, and screening model levels after keyword retrieval, wherein the model levels comprise a system level, a subsystem level, a field replaceable unit level/LRM level, a workshop replaceable unit level and a functional circuit level.

Description

Fault library management and multiplexing method based on hierarchical structure coding Technical Field The invention relates to a fault library management and multiplexing method based on equipment types, and belongs to the field of fault detection. Background When the existing equipment system fails, personnel perform fault diagnosis and fault processing according to actual display data, and the problems that the existing testing method is insufficient in detection capability, limited in fault coverage, long in fault positioning and fault processing time and the like are exposed, or even if the use is found to be problematic, the faults cannot be positioned quickly, so that the outfield maintenance guarantee efficiency is low, and the combat readiness and the task success rate of the system are affected. In addition, because the use scenes and the use characteristics of the same equipment with different models are different, the use fault management of the same equipment with different models is different, so that the same fault of the same equipment occurs in different models, fault modules of the equipment cannot be reused, and the use experience of the equipment cannot be effectively transferred. Therefore, it is desirable to provide a fault library management and multiplexing method based on hierarchical coding. Disclosure of Invention The invention aims to solve the technical problems of overcoming the defects of the prior art and solving the problem of effective multiplexing of equipment fault information, and provides an equipment fault library management and multiplexing method based on hierarchical structure coding, which realizes the aims of rapid positioning of faults, consistency of equipment fault library management, integration of equipment fault phenomenon, standardization of equipment fault analysis and high efficiency of equipment fault processing. The invention aims at realizing the following technical scheme: A fault library management and multiplexing method based on hierarchical structure coding comprises the following steps: Step1, collecting historical fault information of the same equipment in multiple models, and carrying out structuring treatment to generate structured fault information; Step 2, converting the structured fault information into a hierarchical structure coding table; step 3, constructing a fault information model by using a fault diagnosis modeling tool based on the hierarchical structure coding table; Step 4, establishing an index table of fault mode codes, fault reasons, fault scenes, fault influences, fault detection methods and treatment measure information, and constructing a fault library and a management method; and 5, establishing a multiplexing method of the fault library. Further, in the step 1, the workflow is as follows: (1) Collecting historical fault information of the same equipment in a plurality of models, wherein the historical fault information data comprises fault modes, fault reasons, fault scenes, fault influences, fault detection and processing measures; (2) Determining a fault diagnosis isolation level, namely determining the fault diagnosis isolation level according to the external field maintenance guarantee requirement, isolating the fault to a field replaceable unit level, namely an equipment level, for electrical system equipment; (3) Analyzing fault modes according to device types, wherein a) the main functions of control type devices comprise instruction sending, state inquiring and data transferring, the control instructions define fault modes according to whether the instructions are on functions or off functions, the state inquiring can inquire according to states, the state inquiring is normal, the state inquiring is abnormal, the data transferring is according to data sending is normal, data sending is abnormal, data receiving is normal, data receiving is abnormal, the fault modes are defined according to data receiving is abnormal, b) collecting devices analyze the functions of each collecting channel respectively, each channel is defined as state collecting is normal and state collecting is abnormal according to functions, c) the communication devices distinguish half duplex and full duplex communication according to physical link conditions, the half duplex type is a shared communication link, the fault modes are defined as communication interruption and communication error, the receiving and sending of the full duplex type communication are respectively provided with an independent link, the fault modes are defined according to four conditions, namely communication transmission interruption, communication transmission error, communication reception interruption and communication reception error, d) the fault modes of the electrical connectors are inserted between the devices, the fault modes are described to be refined to a needle, the device level fault modes of the electrical connectors are used as corresponding fault level