Storage structure, storage method and reading method for minute freezing data
By using a minute freezing data storage structure of two-level index files in the 698 standard, the problem of data loss caused by adding or deleting associated objects in the prior art is solved, and the data search efficiency is improved.
CN119690911APending Publication Date: 2025-03-25SHANDONG ELECTRIC HIMILE ENERGY SAVING TECH CO LTD
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Patent Information
- Application Number
- CN202411796982.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-25
AI Technical Summary
Technical Problem
The existing 698-minute freezing data method needs to delete the previous recorded data when adding or deleting the associated object, resulting in data loss.
Method used
A minute freezing data storage structure is adopted, including a primary index file, multiple secondary index files and multiple third-level data files. The time stamp, serial number, storage address and associated object flag of frozen data are saved through the secondary index file to realize the storage of uncertain long frozen data.
Benefits of technology
It avoids the need to delete previously recorded data when adding or deleting associated objects, solves the problem of data loss, and improves data search efficiency through a two-level index structure.
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Figure CN119690911A_ABST
Abstract
The invention belongs to the field of electric energy collection, and relates to a minute freezing data storage structure, a storage method and a reading method. The minute frozen data storage structure comprises a first-level index file, a second-level index file and a third-level data file, the first-level index file comprises a day index, a previous frozen record serial number and N first-level index structural bodies, the second-level index file comprises a header structural body and n frozen data index structural bodies, and the third-level data file comprises frozen data. The minute freezing data storage method comprises the following steps of: picking out an associated object to be frozen every whole minute, updating data in a second-level index file, and storing frozen data of the associated object to be frozen into a third-level data file. The minute frozen data reading method comprises the following steps of: finding a secondary index structural body in a secondary index file by using a binary search method, and reading frozen data of query time from a third-level data file. According to the method and the device, the storage of the frozen data in variable-length minutes is realized, and the data reading time is shortened.
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