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Storage method and reading method of fault tree data

A fault tree and data technology, applied in relational databases, database models, database indexes, etc., can solve the problems of slow data retrieval, high data redundancy, small data redundancy, etc., to improve the recognition speed and redundancy. Low degree, easy to expand effect

Active Publication Date: 2020-06-19
BEIJING INST OF SPACE LAUNCH TECH +1
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Problems solved by technology

[0005] In order to solve the problems of poor scalability, high data redundancy, and slow data retrieval speed in the existing fault tree data storage methods, the present invention proposes a new data storage structure using object-oriented design ideas to realize fault tree storage. Storage, which can achieve good scalability at the storage layer, has less data redundancy, and can achieve fast data retrieval

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  • Storage method and reading method of fault tree data
  • Storage method and reading method of fault tree data
  • Storage method and reading method of fault tree data

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Embodiment Construction

[0036] The storage method and reading method of the fault tree data of the present invention will be explained and described in detail below in conjunction with the accompanying drawings.

[0037] Such as figure 1 , 2 As shown, a storage method for fault tree data, the storage method specifically includes the following steps.

[0038] Step 1, for each event in the fault tree, the present invention adopts the mode of object-oriented analysis to decompose the fault tree structure; The decomposition fault tree structure specifically includes the following steps: the fault tree is abstracted into five types of objects, and the five types of objects are respectively top Event, middle event, bottom event, logic and, logic or, for convenience of description, " top event ", " middle event ", " bottom event ", " logic and ", " logic or " are respectively used to represent " in the present invention Top Event Object", "Middle Event Object", "Bottom Event Object", "Logical AND Object",...

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Abstract

The invention discloses a fault tree data storage method and reading method. The storage method comprises steps as follows: after a fault tree structure is decomposed, each event in a fault tree is endowed with an event code, fault tree data are mapped into four relation tables according to event codes and the logic relation between events, and fault tree data are stored in a manner of storing the four relation tables. The reading method comprises steps as follows: a to-be-read target fault tree id is acquired, basic information of the fault tree is retrieved and acquired, a top event of the fault tree is retrieved, all intermediate events of the fault tree are retrieved, and all bottom events of the fault tree are finally retrieved. The fault tree data storage method and reading method are innovatively proposed. The storage method can have good extensibility and smaller data redundancy on a storage layer, and can realize rapid retrieval during reading of the fault tree data.

Description

technical field [0001] The invention relates to the technical field of data storage, and more specifically, the invention relates to a storage method and a reading method of fault tree data. Background technique [0002] Fault diagnosis plays an important role in the guarantee and maintenance of large equipment and systems. The basic principle of fault diagnosis is: use the artificial or expert knowledge in the object field to quickly locate and troubleshoot the cause of the object fault. Therefore, how to effectively extract, describe, and retrieve artificial expert knowledge in different object fields is one of the key technologies in fault diagnosis. . In view of this, the fault tree is the most widely used expression form of expert knowledge in fault diagnosis at present, and its description of expert knowledge has the characteristics of conciseness, clarity, and intuitive image. [0003] The fault diagnosis system needs to store the fault tree data in the computer sys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/22G06F16/28G06F16/2453
CPCG06F16/2282G06F16/2453G06F16/288
Inventor 曹向荣赵旭昌李向阳刘杰
Owner BEIJING INST OF SPACE LAUNCH TECH
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