CN201084422Y - An early warning protection device for hard disks - Google Patents
An early warning protection device for hard disks Download PDFInfo
- Publication number
- CN201084422Y CN201084422Y CNU2007201497021U CN200720149702U CN201084422Y CN 201084422 Y CN201084422 Y CN 201084422Y CN U2007201497021 U CNU2007201497021 U CN U2007201497021U CN 200720149702 U CN200720149702 U CN 200720149702U CN 201084422 Y CN201084422 Y CN 201084422Y
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- hard disk
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- 230000001012 protector Effects 0.000 claims description 18
- 230000001133 acceleration Effects 0.000 abstract description 11
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
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Abstract
The utility model discloses a warning protection unit for hard disk, comprising a sensing unit used to sense the acceleration generated by the hard disk disengaging from the stationary state due to the external action force, a signal processing unit connected with the sensing unit, a warning circuit for warning prompt according to the output signal of the signal processing unit and a starting circuit for hard disk protection; when the hard disk performs accelerating movement due to the external action force or is under abnormal vibration, the trigger signal is output by the signal processing unit to the micro control circuit of the hard disk, and the control instruction is also output or the power supply of the hard disk is cut off, thereby the magnetic head of the hard disk is pulled out of the disk surface, thus the data loss caused by the disk damage due to the collision between the magnetic head the disk is avoided.
Description
[technical field]
The utility model relates to a kind of safety guard of hard disk, particularly a kind of prior-warning device of protecting hard disk read-write operations safety, and the alert status of real-time prompting hard disk.
[background technology]
Hard disk is as the data storage device of electronic product, after the video disc of hard disk inside begins high-speed the rotation, drive ambient air and produce air-flow and produce damping effect, make magnetic head to float, magnetic head is by the read-write of pneumatic floating at the enterprising line data of video disc.Hence one can see that, and the magnetic head of hard disk need prevent vibrations or drop that unusual vibrations may cause magnetic head and disc to touch, and wearing and tearing sheet sheet gently then causes this part hard disk can't read and write any data forever, and heavy then DISK to Image is scrapped.Therefore, the security of hard disk becomes the important leverage of data security.
Most of HD vendor has taked a lot of methods to be protected for hard disk, and the protected mode of hard disk mainly is divided into two kinds, passive type protection and active protection.
The passive type protection mainly is to increase the physical construction protective device on hard disk, such as sponge, anti-protection pad etc., perhaps adopts beam etc.This mechanical mechanism protective device can be protected hard disk only in dropping or colliding the time to a certain extent; but, make the passive type protection of hard disk only slow down the damage of hard disk and can not avoid damage in advance for dropping or colliding and to carry out the effectively start protective device in advance before.
Active protective device adopts the sensing signal of sensor to carry out circuit protection usually.The realization of this active protective device mainly is to implant an independent chip, correlation parameters such as the angle that its recorded electronic product moves, speed, vibrations in mainboard.If find that the hard disk vibrations are unusual, sensor can send to hard disk and quit work, the order of home head, thereby protection is because the hard disk corruptions that accidental falling causes effectively.
Yet; when the hard disk applications with above-mentioned active protective device during in mobile electronic product; be to adopt to insert the mode of hard disk inside in the sensor chip; safeguard protection state when using for hard disk can not give the user any prompting; user's have no way of in time knowing safety case of mobile electronic product, and when the dangerous user mode of hard disk, also can not give to point out in advance; and only when damage taking place, just protect control by sensor chip.If, then may bring irremediable loss to the user in case fall the damage hard disk.
[summary of the invention]
The early warning protector of hard disk of the present utility model technical matters to be solved is a real-time prompting user hard disk ground safe handling state; and the dangerous user mode of the prompting user hard disk that gives warning in advance; thereby prevent that user's further improper use from influencing the data security of hard disk, reduce the risk of the data security of hard disk.
For solving above-mentioned technical matters, the utility model provides a kind of early warning protector of portable hard drive, comprising: sensing cell, sensing hard disk are subjected to outside acting force, and export sensing signal with the form of simulating signal; The signal processing unit that is connected with sensing cell, receive the sensing signal of the output of sensing cell in real time, and judge whether to reach the alert threshold of setting, when the sensing signal of this output surpasses the alert threshold of setting, then export trigger pip to stop the data read-write operation of hard disk; The early warning circuit that is connected with signal processing unit, the trigger pip of described early warning circuit received signal processing unit output also starts early warning.
In sum; the early warning circuit of the utility model by being provided with; the user can know in real time in use whether hard disk is in a safe condition; and when hard disk is subjected to applied external force; early warning circuit can carry out early warning in advance, reminds the security protection consciousness of user to hard disk, thereby helps the safeguard protection of hard disk; avoid unnecessary further damage, and reduce the risk of the data security of bringing thus.
[description of drawings]
Fig. 1 is the theory diagram of the early warning protector of the utility model hard disk.
Fig. 2 is the circuit structure diagram of the early warning protector of the utility model hard disk.
[embodiment]
Reach technological means and the effect that predetermined purpose is taked for further setting forth the utility model; below in conjunction with drawings and Examples; to the early warning protector of the hard disk that the utility model proposes, its embodiment, structure, feature and effect thereof are described in detail as follows.
See also Fig. 1, the early warning protector 1 of the utility model hard disk comprises sensing cell 10, connects the signal processing unit 20 and the early warning circuit 30 of sensing cell 10.The output signal of early warning circuit 30 received signal processing units 20, and send early warning signal in view of the above.The output signal of signal processing unit 20 exports the micro-control circuit 40 of hard disk 50 to, and the read-write steering order that micro-control circuit 40 receives output signals and exports hard disk is to hard disk 50, thereby stops the data read-write operation of hard disk 50.
Sensing cell 10 adopts acceleration sensing chip sensing hard disks to be subjected to outside acting force and acceleration when producing motion, for example adopts the 3-axis acceleration sensor chip of X, Y, Z axle.In this specific embodiment, adopt the sensor chip of H34C model.The acceleration sensing value that acting force produces on this sensor chip output X-axis, the Y direction is respectively AOX, AOY, but simultaneously H34C also being subjected to the gravity acceleration value that action of gravity produces and exporting sensing value during the hard disk freely falling body on the sensing vertical direction be ZeroG.When hard disk 50 of the present utility model was in the state of static or stress balance, sensing value AOX, the AOY of the output acceleration of X-axis, Y-axis was zero, and at this moment, the acceleration sensing value of ZeroG output also is zero, thereby this sensor chip is output as no-voltage.
As shown in Figure 2, signal processing circuit 20 comprises respectively first signal processing circuit 21 and the secondary signal treatment circuit 22 that electrically connects with sensing cell 10.First signal processing circuit 21 comprises the two groups of comparers 211,212 and first monostable circuit 213.Two groups of comparers 211,212 receive the AOX, the analog voltage of AOY of sensing signal output of X-axis, the Y direction of sensor chip H34C respectively, and be converted to digital signal, AOX, AOY signal input to two groups of comparers 211,212 respectively, thereby are respectively to export first monostable circuit 213 to after digital signal and the processing with AOX, AOY conversion of signals.Sensor chip H34C is the sensing signal that is subjected to outside acting force on sensing X-axis, the Y direction, according to the numerical algorithm of inside the magnitude of voltage of X, Y direction is carried out the sensing value that functional operation and output function value are AOX, AOY again, in the present embodiment, the aanalogvoltage threshold value of setting X, Y direction satisfies: minimum threshold 0.3g (1g=9.81m/s
2), max-thresholds is 4g.Thereby, voltage threshold after the magnitude of voltage on X, the Y direction is through the funtcional relationship computing is less than minimum threshold, or during greater than max-thresholds, then X, Y-axis are exported the magnitude of voltage of early warning, 21 of first signal processing circuits are converted to digital signal according to this early warning magnitude of voltage and via two groups of comparers 211,212, and export first monostable circuit, 213, the first monostable circuits, 213 outputs, first trigger pip to signal control circuit 23.In the present embodiment, signal control circuit 23 is single AND circuit 231, when the voltage threshold of the output signal on X, the Y direction after functional operation is lower than minimum threshold 0.3g, represent that then hard disk is in the state of freely falling body of non-upset or the state that the acceleration induction device is in the hard disk barycenter; If the voltage threshold of output signal after functional operation on the X, Y direction during greater than max-thresholds 4g, represents that then hard disk is in the free falling body state of rollover states.
In the present embodiment, secondary signal treatment circuit 22 is second monostable circuit 221.Second monostable circuit 221 receives the ZeroG output signal of sensor chip H34C, the effect of suffered acceleration of gravity when the ZeroG output signal represents that hard disk is in the movement of falling object and the acceleration signal exported, the expression hard disk is in the movement of falling object, thereby makes second monostable circuit, 221 outputs, second trigger pip to signal control circuit 23.
The signal control circuit 23 that receives the trigger pip of first signal processing circuit 21 and secondary signal treatment circuit 22 in the signal processing unit 20 of the present utility model is used to judge the signal of reception and exports control signal.Therefore, the slight vibrations of outside cause the wrong control signal that signal control circuit 23 outputs are disturbed when avoiding normally using hard disk, in concrete enforcement, can increase anti-clutter circuit, as, adopt pulse control circuit, carry out shielding processing for the width of pulse less than the output signal of setting threshold, thereby make the read-write operation of hard disk not be subjected to normal external interference signal.
When hard disk of the present utility model because of normal impingement or during the movement of falling object state that produces when falling, export signal control circuit 23 to after the AOX that first signal processing circuit 21 receives, the AOY signal Processing, signal control circuit 23 outputs first control signal to hard disk, thereby stop the data read-write operation of hard disk.
The early warning protector 1 of the utility model hard disk is except that the movement of falling object state that is used for the sensing hard disk carries out the active protection of hard disk; also be used for the unusual vibrating state that the sensing hard disk is in the non-movement of falling object; the non-movement of falling object that may damage hard disk that is subjected to that the acting force of the outside beyond the gravity produces as, hard disk.In the present embodiment, when hard disk 50 of the present utility model is subjected to applied external force upset suddenly and when being in the unusual vibrating state of non-freely falling body, the X of H34C sensor chip, AOX on the Y direction, AOY signal and ZeroG signal are exported early warning signal to the first respectively, second monostable circuit 213,221, first, second monostable circuit 213,221 export first simultaneously, second trigger pip is to AND circuit 231, thereby, first, second trigger pip triggers AND circuit 231 outputs second and controls signal to hard disk, thereby makes hard disk stop the data write operation.Avoid the head crash magnet of hard disk 50 and corrupt data.In this specific embodiment, the micro-control circuit 40 of hard disk sends the instruction that stops reading and writing data, thereby makes the magnetic head of hard disk be pulled away from disc surface, returns initial position and stops read-write, avoids magnetic head bump disc to cause hard disk corruptions and cause loss of data.In addition, also can adopt the power supply of direct cut-out hard disk, thus make hard disk home head and stop data read-write operation.
The early warning circuit 30 that carries out early warning when using at the hard disk abnomal condition of the present utility model also is provided with at the status display circuit 31 that shows the normal condition of hard disk when hard disk is in normal operating condition.As, the normal condition of employing diode displaying hard disk, thus the user can carry out safe data manipulation according to the show state of status display circuit 31.And be subjected to applied external force when hard disk 50 of the present utility model and fall when being in the free movement state, when perhaps being in the unusual vibrating state of non-freely falling body because of collision, the control signal of the output of early warning circuit 30 received signal control circuits 23 is also sent early warning information, in concrete enforcement, early warning circuit 30 can adopt common early warning circuit, for example, adopt the sound early warning circuit of sound early warning, or the light early warning circuit that adopts light signal to carry out early warning, perhaps adopt the acousto-optic early warning circuit of sound and optic signal combination.In addition, can also in early warning circuit 30, display circuit be set, thus, make the utility model when early warning, can also be by graphic presentation or literal display reminding information.
When hard disk 50 of the present utility model is subjected to the impulsive contact force effect of external force or falls or be subjected to outside unexpected impulsive contact force and produce unusual vibrations and when overturning, early warning circuit 30 receives the output signal of H34C sensor chip and starts early warning, if early warning circuit 30 adopts the sound early warning circuit, the sound that then gives the alarm prompting user; If early warning circuit 30 adopts the light early warning circuit, the prompting user hard disks 50 such as red light signal that then send flicker or warning are in abnomal condition.Thus, when the user can learn that in time hard disk 50 is in improper user mode by the prompting of early warning circuit 30, reach the purpose of pointing out the user to note in advance.In concrete enforcement, can also distinguish the warning level of early warning circuit 30 according to user's needs, promptly, when user's abnormal operation, as the collision hard disk of chance but do not make hard disk 50 fall or overturn, hard disk can send slight early warning, but can not stop the read-write operation of hard disk; And when hard disk 50 is subjected to outside fierce bump and can further damages hard disk 50, then, start serious early warning caution user at once, and start the control circuit of hard disk 50 simultaneously, stop the current data read-write operation of hard disk 50.
Claims (10)
1. the early warning protector of a hard disk comprises:
Sensing cell, sensing hard disk are subjected to outside acting force, and arrive signal processing circuit with the form output sensing signal of simulating signal;
The signal processing unit that is connected with sensing cell, receive in real time sensing cell output sensing signal and judge whether to reach the alert threshold of setting, when the sensing signal of this output surpasses the alert threshold of setting, then export trigger pip to stop the data read-write operation of hard disk;
It is characterized in that: also comprise the early warning circuit that is connected with signal processing unit, the trigger pip of described early warning circuit received signal processing unit output also starts early warning.
2. the early warning protector of hard disk according to claim 1, it is characterized in that: the early warning that described early warning circuit sends comprises sound early warning signal or early warning light signal or graphic presentation or text prompt information.
3. the early warning protector of hard disk according to claim 2 is characterized in that: described early warning also comprises and shows that hard disk is in the status display circuit of normal operating condition.
4. the early warning protector of hard disk according to claim 1 and 2 is characterized in that: described sensing cell is subjected to the sensing element of the acting force of outside X-direction and Y direction for the sensing hard disk.
5. the early warning protector of hard disk according to claim 4, it is characterized in that: described sensing element is the H34C sensor chip.
6. the early warning protector of hard disk according to claim 4; it is characterized in that: described signal processing unit comprises first signal processing circuit; first signal processing unit comprises first comparer, second comparer and first monostable circuit, and first sensing signal of described X-axis, Y direction acting force inputs to first, second comparer respectively and is converted to digital signal and exports first monostable circuit to.
7. the early warning protector of hard disk according to claim 6; it is characterized in that: also comprise. the secondary signal treatment circuit that is connected with sensing cell; the output signal of described sensing cell sensing also comprises second sensing signal of the movement of falling object of sensing hard disk; described secondary signal treatment circuit receives this second sensing signal and exports second trigger pip
8. the early warning protector of hard disk according to claim 7; it is characterized in that: also comprise signal control circuit, described signal control circuit receives described first trigger pip, second trigger pip and outputs control signals to hard disk to stop the data read-write operation of hard disk.
9. the early warning protector of hard disk according to claim 8, it is characterized in that: described signal control circuit is single AND circuit.
10. the early warning protector of hard disk according to claim 9; it is characterized in that: first monostable circuit of first signal processing circuit is exported first trigger pip to described single AND circuit; described single AND circuit receives described first trigger pip and exports first control signal; second monostable circuit of described secondary signal treatment circuit is exported second trigger pip to described single AND circuit, and single AND circuit receives described first, second trigger pip simultaneously and exports second control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497021U CN201084422Y (en) | 2007-06-19 | 2007-06-19 | An early warning protection device for hard disks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497021U CN201084422Y (en) | 2007-06-19 | 2007-06-19 | An early warning protection device for hard disks |
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| Publication Number | Publication Date |
|---|---|
| CN201084422Y true CN201084422Y (en) | 2008-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201497021U Expired - Lifetime CN201084422Y (en) | 2007-06-19 | 2007-06-19 | An early warning protection device for hard disks |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467943A (en) * | 2010-11-17 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and method for preventing hard disc from operating on same resonance point with same |
| CN104461405A (en) * | 2015-01-07 | 2015-03-25 | 联想(北京)有限公司 | Data emergency protection method and electronic device |
| CN112330902A (en) * | 2020-10-30 | 2021-02-05 | 何利 | Data encryption automatic alarm equipment capable of avoiding being impacted by brute force |
-
2007
- 2007-06-19 CN CNU2007201497021U patent/CN201084422Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102467943A (en) * | 2010-11-17 | 2012-05-23 | 鸿富锦精密工业（深圳）有限公司 | Electronic device and method for preventing hard disc from operating on same resonance point with same |
| CN104461405A (en) * | 2015-01-07 | 2015-03-25 | 联想(北京)有限公司 | Data emergency protection method and electronic device |
| CN104461405B (en) * | 2015-01-07 | 2017-12-29 | 联想(北京)有限公司 | Data emergency protection method and electronic equipment |
| CN112330902A (en) * | 2020-10-30 | 2021-02-05 | 何利 | Data encryption automatic alarm equipment capable of avoiding being impacted by brute force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING PATRIOT STORE TECHNOLOGY CO.,LTD. Free format text: FORMER OWNER: HUAQI ZIXUN DIGITAL SCIENCE + TECHNOLOGY CO., LTD., BEIJING Effective date: 20090710 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090710 Address after: International Building, No. 58 West Fourth Ring Road, Beijing, Haidian District, 10, post code: 100080 Patentee after: Beijing Aigo Digital Storage Technology Co., Ltd. Address before: International Building, No. 58 West Fourth Ring Road, Beijing, Haidian District, 11, post code: 100080 Patentee before: Beijing Huaqi Information & Digital Technology Co., Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: AIGO ELECTRONIC TECHNOLOGY (TIANJIN) CO., LTD. Free format text: FORMER OWNER: BEIJING AIGO DIGITAL STORAGE TECHNOLOGY CO., LTD. Effective date: 20100914 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100080 10/F, LIXIANG INTERNATIONAL BUILDING, NO.58, N. 4TH RING WEST ROAD, HAIDIAN DISTRICT, BEIJING TO: 300308 801-3, KEJI BUILDING, BUILDING 3, HUANGGUAN PLAZA, NO.55, ZHONGXIN AVENUE, AIRPORT INDUSTRIAL PARK, TIANJIN CITY |
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| TR01 | Transfer of patent right |
Effective date of registration: 20100914 Address after: 300308 Tianjin Airport Logistics Processing Zone, Central Avenue, No. 55 Crown Plaza, building, science and technology building, 801-3 Patentee after: Aigo Electronic Technology (Tianjin)Co.,Ltd. Address before: 100080, International Building, No. 58 West Fourth Ring Road, Haidian District, Beijing, 10 floor Patentee before: Beijing Aigo Digital Storage Technology Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170321 Address after: 100085 Beijing, Haidian District on the ground floor of the nine Street on the north side of the three floor A area -9 9 Patentee after: Aigo Electronic Technology Co., Ltd. Address before: 300308 Tianjin Airport Logistics Processing Zone, Central Avenue, No. 55 Crown Plaza, building, science and technology building, 801-3 Patentee before: Aigo Electronic Technology (Tianjin)Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20080709 |
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| CX01 | Expiry of patent term |