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Vehicle mounted computer hard disk and battery protection method

A vehicle-mounted computer and hard disk technology, applied in the recording of information on the disk, vehicle parts, transportation and packaging, etc., can solve the problems of car battery discharge, low safety, battery exhaustion, etc.

Inactive Publication Date: 2008-08-20
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such equipment is always in the power supply state, forgetting to turn off the on-board equipment containing the hard disk will cause the car battery to discharge for a long time, causing the battery to be exhausted, and the safety is not high

Method used

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  • Vehicle mounted computer hard disk and battery protection method
  • Vehicle mounted computer hard disk and battery protection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] During operation, there are 2 operation modes:

[0026] Mode 1, as shown in Figure 4.

[0027] After the on-board device with hard disk is started, the on-off detection unit continuously detects the voltage of the Live line to judge whether the ignition switch is in the on state: if the voltage is high, it indicates that the ignition switch is in the ACC or ON position, and it is in the on state, then continue to detect Live voltage; if the voltage is low, it indicates that the ignition switch is in the OFF position and is in a disconnected state, indicating that the driver is ready to stop, and the on-off detection unit sends a shutdown message to the control unit.

[0028] After the control unit receives the shutdown message from the on-off detection unit, it first stops operating the hard disk and instructs the magnetic head to return to its original position. Because the hard disk stops operating and the magnetic head homing is very fast, it can be completed in the...

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Abstract

The invention is a protection method for vehicle-mounted computer hardware and battery, the vehicle-mounted device of the method comprises a power unit, a control unit, a function unit, a hard disc and a voltage testing device. The ACC or ON output voltage of an igniting switch is monitored by a make-break testing unit, as the basis of stopping hardware operation and shutdown or standby of the vehicle-mounted device. The protection method comprises the steps that: 1) the ACC or ON output voltage of the igniting switch is tested by the make-break testing unit; 2) a automobile operation state is judged according to the high state or low state of the ACC or ON output voltage of the igniting switch; 3) when the automobile igniting switch switches from ON or ACC position to OFF close position, the testing voltage of the make-break testing unit changes from high voltage to low voltage, then the hard disc operation is stopped immediately, the instruction hard disc magnetic head is repositioned, the vehicle-mounted device is in shutdown or standby state. By timely control, stopping of hard disc operation previous to power off is realized, preventing hard disc damage and data loss caused by power off and preventing battery exhaustion of vehicle-mounted device caused by long-term operation when the automobile is in stall state.

Description

technical field [0001] The utility model relates to a protection device, in particular to a device for protecting the hard disk in the equipment containing the hard disk on the car and preventing the car battery from running out of electric energy. technical background [0002] Due to the huge storage capacity of the hard disk and the non-volatility of the stored content, it has begun to be used in automobiles, such as the storage of audio and video programs for car audio and video systems, information storage for driving recorders and monitoring equipment inside and outside the car. The hard disk is a mechatronic device, and its shock resistance is weak. In order to solve the application in an unstable environment such as a vehicle bumpy environment, an acceleration sensor is generally embedded in the hard disk, and it can be sensed in real time when the bump occurs, and the magnetic head can be reset in time. , to prevent hard disk damage caused by mechanical shocks such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B19/02B60R11/02
Inventor 李晓峰崔卫庄文君刘永辉王昆赵鹏
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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