Data storage method for logging instrument

A logging instrument and data storage technology, which is applied in the direction of instruments, electronic digital data processing, and other database retrieval, etc., can solve the problem that the storage cannot run quickly and stably, and achieve the effect of fast and reliable data storage, and fast and efficient data storage

Pending Publication Date: 2022-03-08
GUOYI PETROLEUM TECH (WUXI) CO LTD
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Problems solved by technology

In the existing data storage methods, each index table needs to be divided into separate storage areas, and each time the index table is fully loaded, the independent stor

Method used

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  • Data storage method for logging instrument

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Embodiment Construction

[0012] A data storage method used in well logging instruments: the index table is stored in a sector, and the first sector of FLASH must be the sector of the index table;

[0013] Each index table includes several index sequences and an index table link address. The index table link address in each index table is the first address stored in the next index table. The index sequences in each index table are different, and different indexes There are no identical index sequences in the table, and each index sequence points to the first address of the corresponding numbered data packet.

[0014] The index table structure is shown in Table 1:

[0015] index sequence 1 index sequence 2 … index sequenceN Index table link address

[0016] Table 1

[0017] Each index sequence format entry includes start address, timestamp, data type and data length, see Table 2 for details:

[0018] entry initial address timestamp type of data Data length ...

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Abstract

According to the data storage method used in the logging instrument, according to the characteristics that logging data is variable in length and FLASH cannot be erased when working at high temperature underground, linked list type pointing is added into an index storage structure, so that an index list does not need to be divided into storage areas independently, and data storage in the logging instrument is rapid and reliable. The method comprises the following steps of: taking a sector as a storage unit of an index table, and certainly taking a first sector of FLASH as an index table sector; each index table comprises a plurality of index sequences and an index table link address, the index table link address in each index table is a head address stored in the next index table, the index sequences in the index tables are different, and different index tables do not have the same index sequence; each index sequence points to the head address of the corresponding numbered data packet.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a data storage method used in well logging instruments. Background technique [0002] In the electronic system of logging equipment, key data in the logging process need to be stored in FLASH as the main data source for logging analysis. The logging data is of variable length and FLASH cannot be erased when working at high temperature downhole. In the existing data storage methods, each index table needs to be divided into separate storage areas, and each time the index table is fully loaded, the independent storage area needs to be re-divided, which makes the storage unable to run quickly and stably. A fast and reliable data storage method is established in the logging instrument. Contents of the invention [0003] In view of the above problems, the present invention provides a data storage method used in logging tools, which adds linked list pointers to the index storag...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F16/901
CPCG06F3/0679G06F3/0638G06F3/0614G06F3/061G06F16/9024
Inventor 杨焜孙哲冯泽东贺羽
Owner GUOYI PETROLEUM TECH (WUXI) CO LTD
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