CN102553896B - Solid-state hard disk destroyer - Google Patents
Solid-state hard disk destroyer Download PDFInfo
- Publication number
- CN102553896B CN102553896B CN201210030309.6A CN201210030309A CN102553896B CN 102553896 B CN102553896 B CN 102553896B CN 201210030309 A CN201210030309 A CN 201210030309A CN 102553896 B CN102553896 B CN 102553896B
- Authority
- CN
- China
- Prior art keywords
- state hard
- solid
- hard disk
- storage medium
- pulse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 9
- 230000006378 damage Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention provides a solid-state hard disk destroyer, which comprises a key, a processor, a liquid crystal and a pulse generating circuit, wherein the pulse generating circuit is connected with a power pin of a storage medium in a solid-state hard disk. The pulse generating circuit is controlled to generate pulse voltage and puncture an internal structure of the storage medium by the processor after the key is pressed so as to realize physical destroying.
Description
Technical field
The present invention relates to data processing field, particularly relate to a kind of solid-state hard disk destroyer.
Background technology
Traditional mechanical hard disk storage medium is magnetic material.When W head is to disk write data, the signal of magnetization data position can be adjusted to certain suitable intensity by it, but signal is not more strong better, should not exceed certain boundary, in order to avoid affect adjacent data bit.Because signal strength signal intensity is not enough to the magnetized state that makes storage medium reach capacity, so the signal of physical record on medium is subject to the impact of the signal being kept at same position in the past, such as, if originally the data bit of record is 0, covered by one 1 now, so the signal strength signal intensity of physical record in disk medium is not so good as the intensity that original data bit is 1 certainly.Special hardware device accurately can detect the actual value of signal strength signal intensity, this value is deducted the normal intensity of current data position, just obtains the copy of capped data.In theory, this process can recursion seven times forward.Therefore, for conventional hard, though repeatedly carry out low-level formatting (within seven times), its data still can be resumed.
The storage medium of solid state hard disc is NandFlash, NandFlash internal storage unit is three terminal device, is respectively source electrode, drain and gate, with metal-oxide-semiconductor unlike, this three terminal device is double-grid structure, adds a floating grid between grid and silicon substrate.In read-write process, in floating boom, iunjected charge represents write 0, does not have iunjected charge to represent 1.With conventional hard unlike, as long as NandFlash erasing 1 time, namely data cannot be recovered.
In some security applications, solid state hard disc internal data needs to be destroyed rapidly.Someone proposes a kind of physical destroying technology.By adding 10V voltage on NandFlash, puncturing its internal structure, completing the thorough destruction to NandFlash.
Above-mentioned destroying method method has very large shortcoming:
When on NandFlash, high voltage is destroyed, through test, for the K9LBG08U0M of Samsung, immediate current will reach 3 to 4 amperes, if a solid state hard disc comprises 8 NandFlash, so immediate current will reach more than 30 ampere, concerning 2.5 cun of solid state hard discs of standard, its sata interface and PCB all cannot pass through so large electric current, and security performance is low, easily burns out interlock circuit and components and parts.
Summary of the invention
The invention provides a kind of solid-state hard disk destroyer, the problem that solve how can be destroyed solid state hard disc safely, effectively, rapidly.
Destroy machine is by controller, and liquid crystal, button, pulse voltage circuit for generating and destruction interface form.
Controller, for monitoring button operation, controls liquid crystal display content, control impuls voltage generating circuit.
Liquid crystal is for showing operation indicating, and handled easily person carries out correct operation.
Button is used for actual operation.
Pulse voltage circuit for generating, by control, produces correct pulse voltage.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of solid-state hard disk destroyer, comprise button, processor, liquid crystal and pulse generation circuit, described pulse generation circuit is connected with the power pins of storage medium in solid state hard disc, utilize wherein said processor, after detecting that button is pressed, control impuls circuit for generating, sends pulse voltage, puncture the internal structure of storage medium, realize physical destroying.
Preferably, described solid-state hard disk destroyer has following following features: the pulse voltage sent, and amplitude is 10 volts, and the cycle is 100 milliseconds, and dutycycle is 50%, and number is 150.
Compared with prior art, it is short for the pulse voltage cycle puncturing storage medium internal structure that the present embodiment adopts, effectively limit the size of solid state hard disc immediate current, namely control the size of immediate current in a zone of reasonableness, destruction interface and PCB all can bear this immediate current.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of solid-state hard disk destroyer provided by the invention;
Fig. 2 is the principle assumption diagram that in the embodiment of the present invention, pulse voltage generates.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
Controller in destroy machine, after detecting, button is pressed, pulse-width signal is sent to pulse generating circuit, control described pulse generation circuit production burst, the pulse voltage amplitude that wherein said pulse generation circuit exports is 10 volts, cycle is 50 ~ 150 milliseconds, and dutycycle is 50%, and pulse number is at least 150.The further preferred pulse cycle is 100 milliseconds.Liquid crystal, for showing operation indicating, prevents operating mistake.
As shown in Figure 2, impulse circuit is made up of dc source, FET, and dc source exports 10V DC voltage.
Dc source exports 10V DC voltage.Controller, according to the characteristic (cycle is 100ms, and dutycycle is 50%) of pulse voltage, produces pulse-width signal, controls opening or closing of FET, thus produces pulse voltage, and the number that control voltage once produces, namely 150.
Compared with prior art, it is short for the pulse voltage cycle puncturing storage medium internal structure that the present embodiment adopts, effectively limit the size of solid state hard disc immediate current, namely control the size of immediate current in a zone of reasonableness, destruction interface and PCB all can bear this immediate current.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain described in claim.
Claims (1)
1. a solid-state hard disk destroyer, it is characterized in that, comprise button, processor, liquid crystal and pulse generation circuit, described pulse generation circuit is connected with the power pins of storage medium in solid state hard disc, utilizes wherein said processor, after detecting that button is pressed, control impuls circuit for generating, send pulse voltage, puncture the internal structure of storage medium, realize physical destroying;
Wherein, the pulse voltage sent, amplitude is 10 volts, and the cycle is 100 milliseconds, and dutycycle is 50%, and number is 150.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030309.6A CN102553896B (en) | 2012-02-10 | 2012-02-10 | Solid-state hard disk destroyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030309.6A CN102553896B (en) | 2012-02-10 | 2012-02-10 | Solid-state hard disk destroyer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102553896A CN102553896A (en) | 2012-07-11 |
| CN102553896B true CN102553896B (en) | 2014-12-31 |
Family
ID=46401269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030309.6A Active CN102553896B (en) | 2012-02-10 | 2012-02-10 | Solid-state hard disk destroyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102553896B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668278A (en) * | 2015-03-20 | 2015-06-03 | 中国人民解放军军械工程学院 | Secret-related USB flash disc self-destruction device |
| KR101715215B1 (en) * | 2016-04-29 | 2017-03-10 | 우연오 | Device for Destroying of Semiconductor Memory Device |
| KR20180039545A (en) * | 2016-10-10 | 2018-04-18 | 김동범 | Data security device for solid state drive |
| CN107832636A (en) * | 2017-10-12 | 2018-03-23 | 苏州韦科韬信息技术有限公司 | The scheme that 433M remote controls solid state hard disc is destroyed |
| CN107657184A (en) * | 2017-10-12 | 2018-02-02 | 苏州韦科韬信息技术有限公司 | The scheme that GPRS remote controls solid state hard disc is destroyed |
| CN107862222A (en) * | 2017-10-12 | 2018-03-30 | 苏州韦科韬信息技术有限公司 | The scheme that WIFI remote controls solid state hard disc is destroyed |
| CN107845402A (en) * | 2017-10-12 | 2018-03-27 | 苏州韦科韬信息技术有限公司 | The scheme that 315M remote controls solid state hard disc is destroyed |
| CN111818288A (en) * | 2020-07-08 | 2020-10-23 | 上海威固信息技术股份有限公司 | Multi-format video acquisition and storage system with storage card and video acquisition card separately designed |
| CN114247724B (en) * | 2021-11-10 | 2023-03-14 | 山东盖特航空科技有限公司 | System and method for destroying Flash chip by multi-pulse impact |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345076A (en) * | 2007-07-09 | 2009-01-14 | 深圳市研祥智能科技股份有限公司 | Electronic hard disk and electronic equipment |
| CN201237788Y (en) * | 2008-08-11 | 2009-05-13 | 湖南源科创新科技股份有限公司 | Solid state hard disk based on data destruction |
| CN101714123A (en) * | 2008-10-07 | 2010-05-26 | 谈剑锋 | Document mobile memory device capable of ensuring information security and implementing method thereof |
| CN102289623A (en) * | 2011-09-02 | 2011-12-21 | 湖南国安思科计算机系统有限公司 | Anti-leakage laptop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7990762B2 (en) * | 2008-02-06 | 2011-08-02 | Unity Semiconductor Corporation | Integrated circuits to control access to multiple layers of memory |
-
2012
- 2012-02-10 CN CN201210030309.6A patent/CN102553896B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101345076A (en) * | 2007-07-09 | 2009-01-14 | 深圳市研祥智能科技股份有限公司 | Electronic hard disk and electronic equipment |
| CN201237788Y (en) * | 2008-08-11 | 2009-05-13 | 湖南源科创新科技股份有限公司 | Solid state hard disk based on data destruction |
| CN101714123A (en) * | 2008-10-07 | 2010-05-26 | 谈剑锋 | Document mobile memory device capable of ensuring information security and implementing method thereof |
| CN102289623A (en) * | 2011-09-02 | 2011-12-21 | 湖南国安思科计算机系统有限公司 | Anti-leakage laptop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102553896A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102553896B (en) | Solid-state hard disk destroyer | |
| CN106099864B (en) | A kind of short-circuit protection method and its circuit of IGBT device for power switching | |
| CN104283201B (en) | Input stage esd protection circuit | |
| CN103138240B (en) | Current circuit is filled with in counnter attack, current methods and electric power system are filled with in counnter attack | |
| CN103538481A (en) | Control system and brake protection device of electric automobile | |
| CN106452232B (en) | A kind of driving circuit and driving chip of direct current two-phase fan | |
| CN201828905U (en) | Data loading module with software and hardware destroying functions | |
| CN107862222A (en) | The scheme that WIFI remote controls solid state hard disc is destroyed | |
| US20230188129A1 (en) | Aging protection techniques for power switches | |
| CN107657183B (en) | Data security protection method and device for electronic equipment | |
| CN203904725U (en) | Door opening protecting circuit of washing machine | |
| CN103840440A (en) | Power-supply clamp ESD circuit | |
| CN107657184A (en) | The scheme that GPRS remote controls solid state hard disc is destroyed | |
| CN107832636A (en) | The scheme that 433M remote controls solid state hard disc is destroyed | |
| CN202162201U (en) | Physical disk destroying device | |
| TW200511248A (en) | Apparatus for erasing magnetic data and method for erasing magnetic data | |
| CN106778368A (en) | A kind of notebook computer and its hard disk self-desttruction equipment | |
| CN104668278A (en) | Secret-related USB flash disc self-destruction device | |
| CN100411056C (en) | Small size circuit for detecting a status of an electrical fuse with low read current | |
| CN107845402A (en) | The scheme that 315M remote controls solid state hard disc is destroyed | |
| CN207182286U (en) | A kind of safe solid state hard disc for powering off automaticdata and destroying | |
| US10824768B2 (en) | Security device for preventing leakage of data information in solid-state drive | |
| CN108631567A (en) | A kind of method that realizing circuit protection and protection circuit | |
| CN207198856U (en) | Physical security protection circuit | |
| CN102525254B (en) | IH (Indirect Heating) electric rice cooker with power failure detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |