CN104492785B - Physical destruction system - Google Patents

Physical destruction system Download PDF

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Publication number
CN104492785B
CN104492785B CN201410686231.2A CN201410686231A CN104492785B CN 104492785 B CN104492785 B CN 104492785B CN 201410686231 A CN201410686231 A CN 201410686231A CN 104492785 B CN104492785 B CN 104492785B
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CN
China
Prior art keywords
circuit module
destruction
described
physical
destroy
Prior art date
Application number
CN201410686231.2A
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Chinese (zh)
Other versions
CN104492785A (en
Inventor
韩慧芳
范大勇
Original Assignee
中国航空工业集团公司洛阳电光设备研究所
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Application filed by 中国航空工业集团公司洛阳电光设备研究所 filed Critical 中国航空工业集团公司洛阳电光设备研究所
Priority to CN201410686231.2A priority Critical patent/CN104492785B/en
Publication of CN104492785A publication Critical patent/CN104492785A/en
Application granted granted Critical
Publication of CN104492785B publication Critical patent/CN104492785B/en

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Abstract

The invention relates to a physical destruction system, including a destruction control circuit module and a current limiting protection circuit module. When the physical signal destruction is effective, a 28V high voltage large current destruction power supply is directly loaded to a storage medium NAND FLASH chip power supply base pin of a large capacity data storage module by control, and in the manner of reverse high voltage impact or positive large current heating, a storage wafer element of a NAND FLASH chip internal tube core can be completely destroyed. A current limiting protection circuit is designed in the physical destruction process to ensure the physical destruction process does not affect other circuits and only destroy storage FLASH effect. The physical destruction system can physically damage storage FLASH to achieve store data unrecoverability and ensure the complete elimination of important sensitive data in case of emergency.

Description

A kind of physical destroying system

Technical field

The present invention relates to a kind of physical destroying system, belong to data storage data security technique field.

Background technology

The purpose that Data Physical is destroyed is to not allow the external world see related data or permanently irrecoverable, therefore needing careful Careful treat, at present in every country all using different data destroying schemes, method is different, main include deleting, format, cover Write the soft destruction mode such as data and high current punctures the physical destroying mode of flash.

There is destruction time length and can recover equivalent risk in the mode of soft destruction, in emergency situations, selection destructiveness can not The physical destroying recovering is preferable mode.

Content of the invention

It is an object of the invention to provide a kind of physical destroying system, it is long to there is the destruction time in the mode in order to solve soft destruction With the problem that can recover equivalent risk.

For achieving the above object, the solution of the present invention includes a kind of physical destroying system, and this physical destroying system includes pin Ruin control circuit module and current-limiting protection circuit module, destroy control circuit module and include destroying controller and destroy time control Switch, input power passes through current-limiting protection circuit module and connects destruction time control switch, and destruction controller controls to connect to be destroyed Time control switch.

Destroy control circuit module and also include a relay, the control end of relay connects destroys enable signal, input Power supply connects current-limiting protection circuit module by relay.

Destroy control circuit module and also include a voltage conversion circuit module, input power passes through voltage conversion circuit mould Block connects destroys controller.

The present invention adopts electric energy to destroy mode, by electric greatly to the reverse high-voltage impact of data memory module or forward direction Stream, the storage wafer that data memory module is collected thoroughly is damaged, and the time of destroying is short, and has carried out thorough destruction to element, There is not the recovery of data, greatly ensure that security.

In addition, the physical destroying system of the present invention includes two parts: destroy control circuit, current-limiting protection circuit, two kinds of electricity Road cooperates and realizes destroying data memory module, reaches the purpose of protection information safety, current-limiting protection circuit ensures pin simultaneously During ruining and destroy after, other circuit of module are unaffected, very big protective effect is served to other modules it is ensured that its The normal work of his module.

Brief description

Fig. 1 is embodiment of the present invention structural representation.

Specific embodiment

The present invention will be further described in detail below in conjunction with the accompanying drawings.

A kind of physical destroying system, this physical destroying system includes destroying control circuit module and current-limiting protection circuit mould Block, destroys control circuit module and includes destroying controller and destroy time control switch, input power passes through current-limiting protection circuit Module connects destroys time control switch, destroys controller and controls connection to destroy time control switch.

Based on above technical scheme, in conjunction with accompanying drawing, be given with next specific embodiment.

General destruction supply voltage is 28v, ruins as shown in figure 1, destroying control circuit and including one for break-make 28v The relay of key power supply, a 28v turns the change-over circuit of 3.3v, and one controls the destruction controller single-chip microcomputer destroyed, with And a destruction time control mos switch;Current-limiting protection circuit includes the invariable power device of a powerful constant-current voltage-stabilizing.

28v ruins key power supply and connects single-chip microcomputer by the change-over circuit that 28v turns 3.3v, provides working power for single-chip microcomputer, single Piece machine controls to connect destroys time control mos switch, for controlling this to switch on-off.

Destroy and enable the control end being signally attached to relay, 28v ruins key power supply and connects current-limiting protection electricity by relay The input on road, the output end of current-limiting protection circuit is passed through destruction time control mos switch and is connected to mass data storage mould In the storage medium nand flash chip power pin of block.

First, enable signal to one destruction of relay, control relay must conduct, 28v ruins key power supply and passes through relay Device is loaded into the input of current-limiting protection circuit, and output end is connected to Large Volume Data by destruction time control mos switch and deposits In the storage medium nand flash chip power pin of storage module, destruction time control mos switch plays and controls whether to carry out Destroy.

On the other hand, 28v ruins key power supply provides working power by the change-over circuit that 28v turns 3.3v to single-chip microcomputer, in list Program is set in piece machine, controls and destroy time control mos switch conduction with shutoff it is also possible to arrange the different destruction times: 500ms, 1s, 2s, 4s, 8s, 10s etc..

After Single-chip Controlling destroys time control mos switch conduction, 28v ruins key power supply and is loaded directly on flash, adopts The mode generated heat with reverse high-voltage impact or positive high current, will be thorough for the storage wafer of nand flash chip internal die Bottom is damaged.

Constant power source in current-limiting protection circuit ensures that in Destruction and after destruction, other circuit modules are unaffected, Very big protective effect is served to other modules it is ensured that the normal work of other modules.

Destroy under supply voltage 28v, destruction electric current/destruction time can be set as requested by the program that single-chip microcomputer designs Put, such as: destroying electric current 0.65a, under conditions of destroying time 500ms, but realizing destroying, flash after destruction has bright Aobvious Durchgangshohle phenomenon is it is impossible to recover.

It is presented above specific embodiment, but the present invention is not limited to described embodiment.The base of the present invention This thinking is above-mentioned basic scheme, for those of ordinary skill in the art, according to the teachings of the present invention, designs various changes The model of shape, formula, parameter do not need to spend creative work.Right without departing from the principles and spirit of the present invention Change, modification, replacement and modification that embodiment is carried out still fall within protection scope of the present invention.

Claims (3)

1. a kind of physical destroying system is it is characterised in that described physical destroying system includes destroying control circuit module and current limliting Protection circuit module, described destruction control circuit module includes destroying controller and destroys time control switch, and input power leads to Cross current-limiting protection circuit module and connect destruction time control switch, destroy controller and control connection to destroy time control switch;Institute State and destroy control circuit module by the electric energy destruction side to the reverse high-voltage impact of data memory module or positive high current Formula, the storage wafer that data memory module is collected thoroughly is damaged, and so that data can not be recovered.
2. physical destroying system according to claim 1 is it is characterised in that described destruction control circuit module also includes one Individual relay, the control end of described relay connects destroys enable signal, and described input power passes through described relay and connects limit Stream protection circuit module.
3. physical destroying system according to claim 2 is it is characterised in that described destruction control circuit module also includes one Individual voltage conversion circuit module, described input power is connected by described voltage conversion circuit module destroys controller.
CN201410686231.2A 2014-11-24 2014-11-24 Physical destruction system CN104492785B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410686231.2A CN104492785B (en) 2014-11-24 2014-11-24 Physical destruction system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410686231.2A CN104492785B (en) 2014-11-24 2014-11-24 Physical destruction system

Publications (2)

Publication Number Publication Date
CN104492785A CN104492785A (en) 2015-04-08
CN104492785B true CN104492785B (en) 2017-01-25

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CN106469278A (en) * 2015-08-20 2017-03-01 陕西千山航空电子有限责任公司 A kind of unmanned plane FDR system flying quality pin decryption method
CN105095797A (en) * 2015-09-21 2015-11-25 中国船舶重工集团公司第七一七研究所 Physical self-destruct control circuit of electronic data storage unit
CN105513641B (en) * 2015-12-16 2019-08-02 鸿秦(北京)科技有限公司 A kind of safety protective circuit
CN106951188A (en) * 2017-03-13 2017-07-14 西北工业大学 A kind of method of quick low-power consumption physical destroying electric board storage information

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CN102568559A (en) * 2010-12-17 2012-07-11 西安奇维测控科技有限公司 Method for double data destruction of electronic plate
CN103310839A (en) * 2012-03-15 2013-09-18 旺宏电子股份有限公司 Method and apparatus for shortened erase operation

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CN101465164B (en) * 2009-01-12 2013-04-17 成都市华为赛门铁克科技有限公司 Method, device and system for obliterating data
KR101685630B1 (en) * 2010-03-02 2016-12-13 삼성전자주식회사 DLL having 2-phase delay line and duty correction circuit and duty correction method thereof
CN201707677U (en) * 2010-04-21 2011-01-12 湖南源科高新技术有限公司 High-confidentiality solid hard disk product based on double destroy technology
CN202534367U (en) * 2012-04-27 2012-11-14 浪潮电子信息产业股份有限公司 Solid state drive (SSD) capable of realizing data erasing function
CN202796078U (en) * 2012-08-29 2013-03-13 浪潮集团有限公司 Solid state disk with destruction function
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Publication number Priority date Publication date Assignee Title
CN102568559A (en) * 2010-12-17 2012-07-11 西安奇维测控科技有限公司 Method for double data destruction of electronic plate
CN103310839A (en) * 2012-03-15 2013-09-18 旺宏电子股份有限公司 Method and apparatus for shortened erase operation

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