Data verification backup, writing and reading method for triangle type memory device

Abstract

The invention discloses a data verification backup, writing and reading method for a triangle type memory device. The triangle type memory device comprises a ferroelectric memory, a first flash memory and a second flash memory. The data memory backup method comprises the steps of reading data in the ferroelectric memory; verifying the data; backing up to the first flash memory and the second flash memory after successfully verifying. The data writing method comprises the steps of reading bad block areas of the first flash memory and the second flash memory from the ferroelectric memory; respectively writing real-time data into block areas outside the bad block areas of the first flash memory and the second flash memory. The data reading method comprises the steps of reading real-time data of the first flash memory; verifying; returning after failing in verification; continuously reading and verifying until the failure times reach the preset times; reading the real-time data stored in the second flash memory. With the adoption of the data verification backup, writing and reading method for the triangle type memory device, the safety and accuracy of the data can be improved.

Description

technical field [0001] The invention belongs to the field of data processing, and in particular relates to a data verification backup, writing and reading method of a triangular storage device. Background technique [0002] The learning time record terminal installed in the driving school is used to record the whole process of the coach training the students, and the most important thing in the record file is the learning time record (recording the record from the beginning to the end of the student's driving learning), so the security of its storage must be ensured. ; However, since the learning hour recording terminal equipment is installed on the driving school vehicle and needs to be powered by the vehicle battery, a stable voltage cannot be guaranteed. The impact of radio waves disrupts the stability of data reading and writing of terminal equipment for recording hours, and may cause errors in data reading or writing information. Generally, the method of data backup an...

AI Technical Summary

Problems solved by technology

[0002] The learning time record terminal installed in the driving school is used to record the whole process of the coach training the students, and the most important thing in the record file is the learning time record (recording the record from the beginning to the end of the student's driving learning), so the security of its storage must be ensured. ; However, since the learning hour recording terminal equipment is installed on the driving school vehicle and needs to be powered by the vehicle battery, a stable voltage cannot be guaranteed. The impact of radio waves disturbs the stability of data reading and writing of time-recording terminal equipment, which may cause errors in data reading or writing information

Generally, the method of data backup and recovery can be adopted to solve this problem, but due to the limitation of the erasing and writing times of the Flash storage device (also called a flash memory) (generally limited to 100,000 times), the flash memory cannot be frequently erased and written, so even if the final The data can be backed up, but the process data is still not protected in time, resulting in the loss of some data and the waste of the last training time

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