File cyclic storage method and system thereof
A circular storage and file technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as cumbersome update methods, unbalanced storage space loss, and complex program design
Active Publication Date: 2018-10-16
ZHONGBEI UNIV
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Problems solved by technology
However, since this kind of file circular storage method needs to open up a certain amount of memory to store index information, and each time the data is stored, the files in the index area need to be updated. Erasing, writing and other operations on the blocks reserved for storing file information will make the loss of block storage space in this part not well balanced
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[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.
[0044] Such as figure 1 As shown, in the embodiment of the present invention, the method includes the following steps:
[0045] Step S110, the FPGA receives the write date information request sent by the host computer, obtains the initial block address of this storage from the address area of the ROM storage unit according to the write date information request, obtains the date information from the timing module, and writes the obtained date The information is written into the free area of the FLASH storage unit;
[0046] Wherein, the date information is stored in each page of each block corresponding to the user data. The free area where the obtained date address is written i...
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The invention discloses a file cyclic storage method and a system thereof. The system comprises an upper computer, a FPGA (Field Programmable Gate Array), a timing module and a data storage module, wherein the data storage module comprises a ROM (Read-Only Memory) storage unit and a FLASH storage unit. The ROM storage unit is divided into a configuration area and an address area; the FLASH storageunit is divided into a data area and an idle area, wherein the configuration area is used for storing configuration information of the data storage module; the address area is used for storing the starting block address of a user file; the data area is used for storing the user file; and the idle area is used for storing date information. According to the file cyclic storage method and the methodthereof, a file date information list is obtained by acquiring file date information; a starting block address stored by the user file is read in the file date information list; and a storage position of the user file required is determined according to the starting block address corresponding to the date information, which realizes a circular storage record and also realizes a visual selective reading of user data at the same time.
Description
technical field [0001] The invention relates to the technical field of file management, in particular to a file circular storage method and system. Background technique [0002] With the rapid development of modern science and technology, the storage and reading of large-capacity data has been widely used in many fields such as aerospace, surveying, and medical treatment. In the actual environment, people always hope to use a large amount of data to better study the relationship between data, or to find problems in time through data comparison so as to avoid possible problems, and then provide directness in future design practice. experience of. Therefore, the research on large-capacity storage has never stopped. [0003] In scientific research and industrial production, more and more dynamic information needs to be processed, and the amount of data to be studied is also increasing. Correspondingly, the storage capacity, storage speed, and reading speed and reading method ...
Claims
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Inventor 焦新泉赵冬青
Owner ZHONGBEI UNIV