DNA data storage coding and decoding method

Abstract

The invention discloses a DNA data storage coding and decoding method, which comprises data coding and data decoding. The data coding comprises the following steps: data compression is carried out: one or more electronic documents is or are packaged to a single document firstly; data transcoding is carried out: the compressed document is read in a binary form, and the binary data are converted toan integer-type numeric string; data redundancy is increased: error correction coding is carried out by using an RS coding system, and an integer-type numeric string with data redundancy increased isgenerated; and second transcoding of data is carried out: the integer-type numeric string with redundancy increased is transcoded to a DNA sequence set for chip synthesis. Data reading is the reverseprocess of data coding. In comparison with other algorithms, the framework better docks a Custom Array high-throughput synthesis platform through a brand-new 5-bit coding framework, and the coding potential is 1.67; and the algorithm uses a joint use strategy of TAR and LZMA compression algorithms and the RS coding system to achieve good balance between data redundancy reduction and error correction capability increasing.

Description

technical field [0001] The invention relates to a data storage technology, especially a large-capacity data storage technology, specifically a coding framework in the DNA data storage process, and the development of a DNA data storage process based on data compression and error correction coding. Background technique [0002] DNA data storage began in 1988. It refers to the use of DNA molecules to record and store data. Compared with traditional data storage methods such as tape storage and disk storage, its advantages are high-density data volume (1 cubic millimeter of DNA can store 1 EB), Long-term storage (estimated to be stored at -18°C for one million years) and low follow-up maintenance costs. Up to now, its disadvantages are that the cost of DNA synthesis is still high at this stage and the data reading speed is slow, so DNA data storage is more suitable for big data Archival storage. DNA data storage relies on the cutting-edge exploratory direction jointly created b...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the existing problems of high data storage cost and slow reading speed, and to invent a complete and effective encoding framework involving DNA data storage, and a joint encoding process that combines compression and error correction algorithms to achieve Data preservation method using DNA sequence as storage medium

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