Vehicular hard disk drive protection method

A hard disk and hard disk video recorder technology, applied in the field of vehicle hard disk protection, can solve the problem that the hard disk of the vehicle hard disk video recorder cannot be effectively solved, and achieve the effect of ensuring fast transfer, prolonging service life, and continuous storage

Active Publication Date: 2014-01-29
SHANGHAI TONGLI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] It can be seen that although the existing hard disk shock absorption method reduces the failure rate of the hard disk to a certain extent throu

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[0017] Example 1

[0018] See figure 1 , The present invention includes a CPU processor, MCU single-chip microcomputer, ACC signal acquisition module, audio and video acquisition module, camera, speaker, SATA hard disk, and is characterized in that there are multiple signal terminals on the CPU processor. One signal terminal is bidirectionally connected to the MCU single-chip microcomputer, the input terminal of the MCU single-chip microcomputer is connected to the output terminal of the ACC signal acquisition module, the second signal terminal of the CPU processor is bidirectionally connected to the Nand Flash flash memory, and the third signal terminal of the CPU processor is bidirectionally connected to the signal of the SD card The fourth signal terminal of the CPU processor is bidirectionally connected to the first signal terminal of the USB expansion module, and the second signal terminal of the USB expansion module is bidirectionally connected to the SATA hard disk. The fi...

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Abstract

The invention relates to the technical field of vehicular hard disk video recorders, in particular to a vehicular hard disk drive protection method. The method is characterized in that processing software in the vehicular hard disk video recorder controlled through a single-chip microcomputer system transfers video files in a cache medium to an SATA hard disk drive. Compared to the prior art, the method has the advantages that the running state of a vehicle is judged by judging ACC signals so as to a proper time for transferring from the cache medium to a primary hard drive of the vehicular hard disk drive video recorder; when the ACC signals are valid, cache medium video recording is performed; at this moment, the primary hard drive of the vehicular hard disk drive video recorder hibernates; when the ACC signals are invalid, the primary hard drive of the vehicular hard disk drive video recorder is started, transfer is cleaned, and the service life of the primary hard drive in vehicular applications is prolonged effectively; an SD card or onboard NAND flash is used as the cache medium for audio and video data files, and the problem that too small cache of the electronic sensor causes loss of videos is solved thoroughly.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted hard disk video recorders, in particular to a method for protecting a vehicle-mounted hard disk. Background technique [0002] In the environment of vehicle vibration, the vehicle-mounted hard disk video recorder basically adopts the method of physical shock absorption to reduce the failure rate of the hard disk. With such a physical shock absorption method, the damage of the hard disk is inevitable, but the length of use is different. Some three months, some half a year, and some at most one year, basically the hard disk will be damaged. [0003] In addition, some manufacturers have adopted electronic shock absorption solutions, which obtain vibration information through external acceleration sensors, and intervene in the hard disk read and write cycle according to the intensity of vibration, so as to protect the normal reading and writing of hard disk heads. Since the vehicle vibration ...

Claims

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Application Information

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IPC IPC(8): G11B20/10
Inventor 陈冬怀陈定锋
Owner SHANGHAI TONGLI INFORMATION TECH CO LTD
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