CN102553896A - Solid-state hard disk destroyer - Google Patents
Solid-state hard disk destroyer Download PDFInfo
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- CN102553896A CN102553896A CN2012100303096A CN201210030309A CN102553896A CN 102553896 A CN102553896 A CN 102553896A CN 2012100303096 A CN2012100303096 A CN 2012100303096A CN 201210030309 A CN201210030309 A CN 201210030309A CN 102553896 A CN102553896 A CN 102553896A
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- state hard
- solid state
- hard disc
- storage medium
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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, relate in particular to a kind of solid state hard disc destroy machine.
Background technology
Traditional mechanical hard disk storage medium is a magnetic material.When W head write data to disk, it can adjust to certain suitable intensity with the signal of magnetization data position, but signal is not good more more by force, should not exceed certain boundary, in order to avoid influence adjacent data bit.Because the signal strength signal intensity deficiency is so that the magnetized state that storage medium reaches capacity; So physical record was kept at the influence of the signal of same position before the signal on the media receives; For example; If originally the data recorded position is 0, covered by one 1 now, the signal strength signal intensity of physical record on disk medium is 1 intensity certainly not as original data bit so.Special-purpose hardware device can accurately detect the actual value of signal strength signal intensity, and this value is deducted the normal intensity of current data position, has just obtained being capped the copy of data.In theory, this process recursion seven times forward.Therefore, for conventional hard, even repeatedly carry out low-level formatting (in seven times), its data still can be resumed.
The storage medium of solid state hard disc is NandFlash; The NandFlash internal storage unit is a three terminal device, is respectively source electrode, drain and gate, and different with metal-oxide-semiconductor is; This three terminal device is a double-grid structure, between grid and silicon substrate, has increased a floating grid.In the read-write process, iunjected charge representes to write 0 in floating boom, does not have iunjected charge to represent 1.Different with conventional hard is that as long as NandFlash wipes 1 time, data promptly can't be recovered.
In some security applications, the solid state hard disc internal data needs to be destroyed rapidly.Someone proposes a kind of physical destroying technology.Through on NandFlash, adding 10V voltage, puncture its internal structure, accomplish thorough destruction to NandFlash.
Above-mentioned destroying method method has very big shortcoming:
When on NandFlash, adding high voltage and destroying,, be example with the K9LBG08U0M of Samsung through test; Immediate current will reach 3 to 4 amperes, if comprise 8 NandFlash on a solid state hard disc, immediate current will reach more than 30 ampere so; Concerning 2.5 cun solid state hard discs of standard; Its sata interface and PCB all can't pass through so big electric current, and security performance is low, burns out interlock circuit and components and parts easily.
Summary of the invention
The present invention provides a kind of solid state hard disc destroy machine, and the problem that solve is how can be safely, effectively, rapidly solid state hard disc is destroyed.
Destroy machine is by controller, liquid crystal, button, pulse voltage generation circuit with destroy interface and form.
Controller is used to monitor button operation, control liquid crystal display content, control impuls voltage generating circuit.
Liquid crystal is used for the display operation prompting, and the handled easily person carries out correct operation.
Button is used for actual operation.
Pulse voltage generation circuit produces correct pulse voltage by control control.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A kind of solid state hard disc destroy machine comprises button, processor, liquid crystal and pulse generation circuit, and said pulse generation circuit links to each other with the power pins of storage medium in the solid state hard disc; Utilize wherein said processor; After detecting button and being pressed, control impuls generation circuit sends pulse voltage; Puncture the internal structure of storage medium, realize physical destroying.
Preferably, said solid state hard disc destroy machine has following characteristics: the pulse voltage of being sent, amplitude are 10 volts, and the cycle is 100 milliseconds, and dutycycle is 50%, and number is 150.
Compared with prior art; The pulse voltage cycle weak point that is used to puncture the storage medium internal structure that present embodiment adopted; Effectively limited the size of solid state hard disc immediate current, the size of promptly controlling immediate current is destroyed interface and PCB and all can be born this immediate current in a zone of reasonableness.
Description of drawings
Fig. 1 is the sketch map of solid state hard disc destroy machine provided by the invention;
Fig. 2 is the principle assumption diagram that pulse voltage generates in the embodiment of the invention.
The specific embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing and specific embodiment that the present invention is made further detailed description below.Need to prove that under the situation of not conflicting, embodiment among the application and the characteristic among the embodiment be combination in any each other.
Controller in the destroy machine; Be used for detecting sending pulse-width signal to pulse generating circuit after button is pressed, control said pulse generation circuit production burst; The pulse voltage amplitude that wherein said pulse generation circuit is exported is 10 volts; Cycle is 50～150 milliseconds, and dutycycle is 50%, and pulse number is at least 150.Further the preferred pulse cycle is 100 milliseconds.Liquid crystal is used for the display operation prompting, prevents operating mistake.
As shown in Figure 2, impulse circuit is made up of dc source, FET, dc source output 10V DC voltage.
Dc source output 10V DC voltage.Controller produces pulse-width signal according to the characteristic (cycle is 100ms, and dutycycle is 50%) of pulse voltage, controls opening or closing of FET, thereby produces pulse voltage, and controls the number that voltage once produces, promptly 150.
Compared with prior art; The pulse voltage cycle weak point that is used to puncture the storage medium internal structure that present embodiment adopted; Effectively limited the size of solid state hard disc immediate current, the size of promptly controlling immediate current is destroyed interface and PCB and all can be born this immediate current in a zone of reasonableness.
The above; Be merely the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, 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 described protection domain of claim.
Claims (2)
1. a solid state hard disc destroy machine is characterized in that, comprises button, processor, liquid crystal and pulse generation circuit; Said pulse generation circuit links to each other with the power pins of storage medium in the solid state hard disc, utilizes wherein said processor, after detecting button and being pressed; Control impuls generation circuit; Send pulse voltage, puncture the internal structure of storage medium, realize physical destroying.
2. solid state hard disc destroy machine according to claim 1 is characterized in that, the pulse voltage of being sent, amplitude are 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 |
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| CN102553896A true CN102553896A (en) | 2012-07-11 |
| CN102553896B CN102553896B (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210030309.6A Active CN102553896B (en) | 2012-02-10 | 2012-02-10 | Solid-state hard disk destroyer |
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Cited By (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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN109844752A (en) * | 2016-10-10 | 2019-06-04 | 金东范 | Solid state hard disk data information leak-proof safety device |
| 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 |
| CN114247724A (en) * | 2021-11-10 | 2022-03-29 | 山东盖特航空科技有限公司 | System and method for destroying Flash chip by multi-pulse impact |
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| 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 |
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| US20090196083A1 (en) * | 2008-02-06 | 2009-08-06 | Unity Semiconductor Corporation | Integrated circuits to control access to multiple layers of memory |
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| 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 |
| US20090196083A1 (en) * | 2008-02-06 | 2009-08-06 | Unity Semiconductor Corporation | Integrated circuits to control access to multiple layers of memory |
| 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 |
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Cited By (11)
| 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 |
| CN109844752A (en) * | 2016-10-10 | 2019-06-04 | 金东范 | Solid state hard disk data information leak-proof safety device |
| CN109844752B (en) * | 2016-10-10 | 2023-05-16 | 金东范 | Solid state disk data information leakage-proof safety device |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN114247724A (en) * | 2021-11-10 | 2022-03-29 | 山东盖特航空科技有限公司 | System and method for destroying Flash chip by multi-pulse impact |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN102553896B (en) | 2014-12-31 |
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