CN114428981A - Data protection system, data protection method, device and medium - Google Patents
Data protection system, data protection method, device and medium Download PDFInfo
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- 238000001514 detection method Methods 0.000 claims abstract description 94
- 238000004146 energy storage Methods 0.000 claims abstract description 70
- 239000003990 capacitor Substances 0.000 claims abstract description 66
- 238000004590 computer program Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
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Abstract
The application discloses a data protection system, a data protection method, a device and a medium, comprising: the hard disk drive comprises a hard disk power supply circuit, a switch device, a detection circuit and a control unit, wherein the control unit is connected with the detection circuit and the switch device, when a short-circuit signal sent by the detection circuit is acquired, the switch device is controlled to be conducted, whether a short-circuit event caused by factors such as hard disk water inflow exists or not is detected through the detection circuit and is timely processed, the safety of the hard disk is improved, and data loss is prevented. The first end of the switch device is connected with the first end of the energy storage capacitor of the hard disk power supply circuit, and the second end of the switch device and the second end of the energy storage capacitor are grounded and are switched on under the control of the control unit to enable the energy storage capacitor to discharge, so that the hard disk is prevented from being damaged by electric energy stored in the energy storage resistor. Therefore, the scheme provided by the application can timely release the electric energy in the energy storage capacitor after the hard disk enters water, and prevent the hard disk storage chip and the control unit from being damaged, so that the hard disk data are protected.
Description
Technical Field
The present application relates to the field of storage, and in particular, to a hard disk protection system, a hard disk protection method, an apparatus, and a medium.
Background
In a terminal device such as a server, data is generally stored in a hard disk, fig. 1 is a structural diagram of a conventional hard disk power supply circuit, and as shown in fig. 1, a power management unit controls a direct-current power supply and an energy storage capacitor to supply power to a storage chip and a control unit of the hard disk. The conventional hard disk protection method is to cut off a direct-current power supply circuit of the hard disk after water enters the hard disk, but the electric energy stored by the energy storage capacitor can damage a storage chip and a control unit of the hard disk, so that data loss is caused.
Therefore, how to provide a new data protection method to prevent the data loss of the hard disk after the water is introduced into the hard disk or the hard disk is damaged is a problem that needs to be solved urgently by the technical staff in the field.
Disclosure of Invention
The application aims to provide a data protection system, a data protection method, a data protection device and a data protection medium, so as to prevent data loss in a hard disk after water enters the hard disk or the hard disk is damaged.
In order to solve the above technical problem, the present application provides a data protection system, including:
the hard disk drive comprises a hard disk power supply circuit 1, a detection circuit 2 and a discharge circuit 3;
the first end of the discharge circuit 3 is connected with the first end of the energy storage capacitor of the hard disk power supply circuit 1, and the second end of the discharge circuit 3 and the second end of the energy storage capacitor are both grounded;
the detection circuit 2 is connected with the discharge circuit 3, and when a short-circuit signal generated by grounding of the detection end of the detection circuit 2 is detected, the discharge circuit 3 is controlled to be conducted, so that the energy storage capacitor is discharged.
Preferably, the detection circuit 2 includes a switching device and a detection coil 5 connected to the switching device;
the detection coil 5 is arranged at the frame of the circuit board 4 of the hard disk, and when the detection coil 5 is grounded due to the short circuit of the hard disk, the detection coil sends the short-circuit signal to the control unit.
Preferably, the switching device is an MOS transistor;
the control unit is connected with the control end of the MOS tube.
Preferably, the detection circuit 2 further includes: a current limiting resistor;
the first end of the current-limiting resistor is connected with the second end of the switching device, and the second end of the current-limiting resistor is grounded.
Preferably, the detection circuit 2 further includes: a boost resistor;
the first end of the boost resistor is connected with the first end of the switch device, and the second end of the boost resistor is connected with the detection circuit 2.
In order to solve the above technical problem, the present application further provides a data protection method, including:
judging whether a short-circuit signal sent by the detection circuit 2 is acquired;
and if the short-circuit signal is acquired, controlling the switching device to be switched on so as to discharge the energy storage capacitor.
Preferably, the controlling the switching device to be turned on to discharge the energy storage capacitor includes:
judging whether the hard disk power supply circuit 1 stops supplying power or not;
and if the power supply is stopped, controlling the switching device to be switched on if the short-circuit signal is acquired, so that the energy storage capacitor is discharged.
In order to solve the above technical problem, the present application further provides a data protection device, including:
the judging module is used for judging whether the short-circuit signal sent by the detection circuit 2 is acquired;
and the control module is used for controlling the energy storage resistor to discharge if the short-circuit signal is acquired.
In order to solve the above technical problem, the present application further provides a data protection apparatus, including a memory for storing a computer program;
a processor for implementing the steps of the data protection method when executing the computer program.
In order to solve the above technical problem, the present application further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the data protection method.
The data protection system that this application provided includes: the hard disk drive comprises a hard disk power supply circuit 1, a switch device, a detection circuit 2 and a control unit, wherein the control unit is connected with the detection circuit 2 and the switch device, when a short-circuit signal sent by the detection circuit 2 is acquired, the switch device is controlled to be conducted, whether a short-circuit event caused by factors such as hard disk water inflow exists or not is detected through the detection circuit 2 and timely processed, the safety of the hard disk is improved, and data loss is prevented. The first end of the switch device is connected with the first end of the energy storage capacitor of the hard disk power supply circuit 1, and the second end of the switch device and the second end of the energy storage capacitor are grounded and are switched on under the control of the control unit to discharge the energy storage capacitor, so that the hard disk is prevented from being damaged by electric energy stored in the energy storage resistor. Therefore, the scheme provided by the application can timely release the electric energy in the energy storage capacitor after the hard disk enters water, and prevent the hard disk storage chip and the control unit from being damaged, so that the hard disk data are protected.
In addition, the application also provides a data protection method, a device and a medium, which correspond to the data protection system and have the same effects.
Drawings
In order to more clearly illustrate the embodiments of the present application, the drawings needed for the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
FIG. 1 is a block diagram of a conventional hard disk power supply circuit;
fig. 2 is a block diagram of a data protection system according to an embodiment of the present application;
fig. 3 is a schematic diagram of an arrangement of a detection coil provided in an embodiment of the present application;
fig. 4 is a flowchart of a data protection method according to an embodiment of the present application;
fig. 5 is a structural diagram of a data protection device according to an embodiment of the present application;
fig. 6 is a block diagram of another data protection device provided in an embodiment of the present application;
the reference numbers are as follows: 1 is a hard disk power supply circuit, 2 is a detection circuit, 3 is a discharge circuit, 4 is a circuit board, 5 is a detection coil, and 6 is a grounding coil.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
The core of the application is to provide a data protection system, a data protection method, a data protection device and a data protection medium.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
In an application scenario of a hard disk, the hard disk is mainly used for storing data, in order to increase the data reading and writing speed, a buffer area is usually set inside the hard disk, and when the hard disk is powered off, power needs to be supplied through an internal circuit to write data in the buffer area into a memory chip. When water enters the hard disk, the internal power supply circuit is easy to be short-circuited to damage the hard disk, so that data in the hard disk is lost or damaged. In the scheme that this application provided, detect power supply circuit through detection circuitry 2, when detecting that power supply circuit has the short circuit condition, control discharge circuit 3 switches on so that energy storage capacitor discharges. And the damage of the hard disk caused by the discharge of the energy storage capacitor after short circuit is prevented.
Fig. 2 is a structural diagram of a data protection system according to an embodiment of the present application, and as shown in fig. 2, the data protection system according to the present application includes:
the hard disk drive comprises a hard disk power supply circuit 1, a detection circuit 2 and a discharge circuit 3;
the first end of the discharge circuit 3 is connected with the first end of the energy storage capacitor of the hard disk power supply circuit 1, and the second end of the discharge circuit 3 and the second end of the energy storage capacitor are both grounded;
the detection circuit 2 is connected with the discharge circuit 3, and when a short-circuit signal generated by grounding of the detection end of the detection circuit 2 is detected, the discharge circuit 3 is controlled to be conducted, so that the energy storage capacitor is discharged.
In specific implementation, the hard disk power supply circuit 1 is connected to a power supply and is configured to supply power to a hard disk, and the power supply circuit includes: the Power Management Circuit comprises an energy storage capacitor, a Power Management Integrated Circuit Chip (PMIC), an overcurrent protection switch, a cache controller and the like. One end of the overcurrent protection switch is connected with an external power supply, and the other end of the overcurrent protection switch is connected with the PMIC and used for overcurrent protection; the energy storage capacitor is connected with the power supply management chip, and when the external power supply is normal, the energy storage capacitor is charged, and when the external power supply is disconnected, the energy storage capacitor is discharged to provide an electric signal for the cache controller, so that data in the cache region is prevented from being lost; the PMIC is connected with the buffer controller and used for supplying power to the buffer controller and the buffer area, the external power supply supplies power to the post-stage circuit normally, and the energy storage capacitor is controlled to supply power to the post-stage circuit when the external power supply is disconnected.
It is understood that the detection circuit 2 may be an electronic device such as a current sensor or a voltage sensor, and is used for detecting whether the power supply circuit in the hard disk is short-circuited, and controlling the discharge circuit 3 to be turned on when the detection circuit 2 detects a short-circuit signal. It can be understood that the task of determining whether the short-circuit signal exists may be implemented by a control unit of the detection circuit 2, or may be implemented by an external control unit, which is not limited herein; meanwhile, the detection circuit 2 can also be a simple coil structure, and when the grounding of the coil is detected, the short circuit of the power supply circuit in the hard disk due to water inflow is indicated.
In specific implementation, the energy storage capacitor device mainly comprises a super capacitor bank, a bidirectional DC/DC converter and a corresponding control circuit, and the technical core of the energy storage capacitor device is a voltage-sharing topology and a control strategy inside the super capacitor bank and a topology structure and a control strategy of the bidirectional DC/DC converter. Common energy storage capacitors include double layer capacitors and farad capacitors.
It is understood that the on and off of the discharge circuit 3 can be controlled by a combination of the control unit and the switching device, and the on and off of the discharge circuit 3 can also be controlled by only the switching tube, which is not limited herein.
Further, when detecting that the internal circuit is short-circuited due to water inflow of the hard disk, the discharge circuit 3 is controlled to be switched on so as to discharge the energy storage capacitor, and the hard disk is also required to be timely disconnected from the external power supply so as to protect the hard disk from being damaged, so that the purpose of protecting data is achieved.
The present embodiment provides a data protection system, including: the hard disk drive comprises a hard disk power supply circuit, a switch device, a detection circuit and a control unit, wherein the control unit is connected with the detection circuit and the switch device, when a short-circuit signal sent by the detection circuit is acquired, the switch device is controlled to be conducted, whether a short-circuit event caused by factors such as hard disk water inflow exists or not is detected through the detection circuit and is timely processed, the safety of the hard disk is improved, and data loss is prevented. The first end of the switch device is connected with the first end of the energy storage capacitor of the hard disk power supply circuit, and the second end of the switch device and the second end of the energy storage capacitor are grounded and are switched on under the control of the control unit to enable the energy storage capacitor to discharge, so that the hard disk is prevented from being damaged by electric energy stored in the energy storage resistor. Therefore, the scheme provided by the application can timely release the electric energy in the energy storage capacitor after the hard disk enters water, and prevent the hard disk storage chip and the control unit from being damaged, so that the hard disk data are protected.
In specific implementation, the detection circuit 2 may be an electronic device such as a current sensor, and determines whether the hard disk is in water by detecting leakage current; the detection coils 5 can also be arranged at the edge of the hard disk PCB. The second scheme is selected in this embodiment in consideration of the cost and detection accuracy of the two schemes.
On the basis of the above embodiment, the detection circuit 2 includes the switching device and the detection coil 5 connected to the switching device;
the detection coil 5 is arranged at the frame of the circuit board 4 of the hard disk, and when the detection coil 5 is grounded due to the short circuit of the hard disk, a short-circuit signal is generated.
Fig. 3 is a schematic diagram of a setting of a detection coil 5 according to an embodiment of the present application, as shown in fig. 3, the detection coil 5 is disposed at a frame of a circuit board 4 of a hard disk, and the detection coil 5 is uniformly disposed at two edges of the circuit board 4, meanwhile, a grounded coil is uniformly disposed in an area of the hard disk cartridge adjacent to the detection coil 5, after water enters the hard disk cartridge, the detection coil 5 is grounded, and the detection circuit 2 sends a short-circuit signal to a control unit so as to control the discharge of the energy storage capacitor.
Further, the detection coil 5 is connected with the control end of the switching device, and when the detection coil 5 is grounded, the switching device is controlled to be conducted, so that the energy storage capacitor is discharged.
It can be understood that the detection coil 5 used in this embodiment is a coil with an exposed copper wire, and in order to improve the detection sensitivity, the number of the grounding coils 6 of the detection coil 5 in the hard disk cartridge can be increased on the premise of not affecting the normal operation of the hard disk.
In the embodiment, whether the internal circuit of the hard disk is short-circuited or not is detected by the detection coil arranged at the edge of the circuit board of the hard disk, so that whether the hard disk enters water or not is judged, the detection accuracy of the water entering of the hard disk is improved, and meanwhile, the system cost can be reduced.
In a specific implementation, the switching device may be an electronic module with a processing chip, or may be a switching tube.
In a specific implementation, the switching tube includes a MOS tube and a triode, wherein the triode is mostly used for a current driving circuit, and the MOS tube is a voltage control device and is commonly used for a voltage driving circuit. The MOS tube has the advantages of low power consumption and high output impedance, and has good temperature characteristic and noise characteristic, so that the circuit is more stable. In specific implementation, the MOS transistor has an upper limit frequency far higher than that of the triode, which is safer and more stable, so the MOS transistor is usually selected as the switching device.
On the basis of the above embodiment, the switching device is a MOS transistor Q1; the detection coil 5 is connected with the control end of the MOS tube Q1. When the detection coil 5 is grounded and short-circuited, the voltage of the control end of the MOS tube Q1 is 0, the MOS tube Q1 is conducted, and the energy storage capacitor starts to discharge.
In this embodiment, the energy storage capacitor is controlled to discharge through the MOS tube, so that the hardware cost of the data protection system is reduced, and meanwhile, the power consumption of the circuit can be reduced, so that the circuit is more stable and reliable.
It can be understood that the hard disk may be damaged due to the excessive current at the moment of discharging the energy storage capacitor.
In order to solve this problem, on the basis of the above-described embodiment, the detection circuit 2 further includes: a current limiting resistor R2;
the first terminal of the current limiting resistor R2 is connected to the second terminal of the switching device, and the second terminal of the current limiting resistor R2 is grounded.
In this embodiment, the current-limiting resistor is connected to the detection circuit, so that the effect of protecting the power supply circuit inside the hard disk is achieved, meanwhile, the energy storage capacitor can be prevented from being broken down, and the safety and reliability of the power supply circuit inside the hard disk are improved.
In specific implementation, after water enters the hard disk, the detection coil 5 is grounded, so that the current in the detection circuit 2 is too large, and the internal power supply circuit of the hard disk is damaged.
On the basis of the above embodiment, the detection circuit 2 further includes: a boost resistor R1;
a first terminal of the boosting resistor R1 is connected to a first terminal of the switching device, and a second terminal of the boosting resistor R1 is connected to the detection circuit 2.
It can be understood that the second terminal of the voltage boost resistor R1 is further connected to the control terminal of the MOS transistor Q1, for pulling up the control terminal voltage of the MOS transistor Q1.
In the specific implementation process, when the hard disk normally works, the voltage boosting resistor R1 is pulled up, and the MOS transistor Q1 is switched off; when the hard disk is filled with water, the detection coil 5 is grounded, the MOS tube Q1 is conducted, and the energy storage capacitor discharges through a loop where the current limiting resistor R2 is located.
In the embodiment, the stability and reliability of the power supply circuit and the discharge circuit in the hard disk are improved by connecting the boost resistor into the circuit.
Fig. 4 is a flowchart of a data protection method provided in an embodiment of the present application, and as shown in fig. 4, the embodiment provides a data protection method applied to the data protection system, where the method includes:
s10: it is determined whether or not the short-circuit signal transmitted by the detection circuit 2 is acquired.
S11: and if the short-circuit signal is acquired, controlling the switching device to be conducted so as to discharge the energy storage capacitor.
It is understood that the detection circuit 2 may be a circuit for detecting a short circuit condition through an electronic device such as a current sensor, or may be a detection coil 5 disposed on the hard disk circuit board 4, and is not limited herein.
In specific implementation, the control unit for executing the method can be an independent control unit or a buffer control unit of the hard disk, and the latter scheme can save hardware cost.
Since the embodiment of the system part corresponds to the embodiment of the method part, the embodiment of the method part is described with reference to the embodiment of the system part, and is not repeated here.
The embodiment provides a data protection method, which comprises the following steps: the hard disk drive comprises a hard disk power supply circuit 1, a switch device, a detection circuit 2 and a control unit, wherein the control unit is connected with the detection circuit 2 and the switch device, when a short-circuit signal sent by the detection circuit 2 is acquired, the switch device is controlled to be conducted, whether a short-circuit event caused by factors such as hard disk water inflow exists or not is detected through the detection circuit 2 and timely processed, the safety of the hard disk is improved, and data loss is prevented. The first end of the switch device is connected with the first end of the energy storage capacitor of the hard disk power supply circuit 1, and the second end of the switch device and the second end of the energy storage capacitor are grounded and are switched on under the control of the control unit to discharge the energy storage capacitor, so that the hard disk is prevented from being damaged by electric energy stored in the energy storage resistor. Therefore, the scheme provided by the application can timely release the electric energy in the energy storage capacitor after the hard disk enters water, and prevent the hard disk storage chip and the control unit from being damaged, so that the hard disk data are protected.
In specific implementation, when it is detected that the internal circuit is short-circuited due to water inflow of the hard disk, the discharge circuit 3 is controlled to be switched on so as to discharge the energy storage capacitor, and the hard disk is also required to be timely disconnected from the external power supply so as to protect the hard disk from being damaged, so that the purpose of protecting data is achieved.
On the basis of the above embodiment, controlling the switching device to be turned on to discharge the energy storage capacitor includes:
judging whether the hard disk power supply circuit 1 stops supplying power or not;
and if the power supply is stopped, controlling the switching device to be switched on if the short-circuit signal is acquired, so that the energy storage capacitor is discharged.
In this embodiment, the energy storage capacitor is controlled to discharge after the hard disk power supply circuit is determined to stop supplying power, so that the external power supply of the hard disk is prevented from being grounded due to the discharge of the energy storage capacitor, and the safety of the system is improved.
In the foregoing embodiments, detailed descriptions are given to data protection methods, and the present application also provides embodiments corresponding to data protection apparatuses. It should be noted that the present application describes the embodiments of the apparatus portion from two perspectives, one from the perspective of the function module and the other from the perspective of the hardware.
Since the embodiments of the apparatus portion and the method portion correspond to each other, please refer to the description of the embodiments of the method portion for the embodiments of the apparatus portion, which is not repeated here.
Fig. 5 is a structural diagram of a data protection device according to an embodiment of the present application, and as shown in fig. 5, the data protection device includes:
the judging module 10 is configured to judge whether a short-circuit signal sent by the detection circuit 2 is acquired;
and the control module 11 is used for controlling the energy storage resistor to discharge if the short-circuit signal is acquired.
The application provides a data protection device, is applied to above-mentioned data protection system, and this system includes: the hard disk drive comprises a hard disk power supply circuit, a switch device, a detection circuit and a control unit, wherein the control unit is connected with the detection circuit and the switch device, when a short-circuit signal sent by the detection circuit is acquired, the switch device is controlled to be conducted, whether a short-circuit event caused by factors such as hard disk water inflow exists or not is detected through the detection circuit and is timely processed, the safety of the hard disk is improved, and data loss is prevented. The first end of the switch device is connected with the first end of the energy storage capacitor of the hard disk power supply circuit, and the second end of the switch device and the second end of the energy storage capacitor are grounded and are switched on under the control of the control unit to enable the energy storage capacitor to discharge, so that the hard disk is prevented from being damaged by electric energy stored in the energy storage resistor. Therefore, the scheme provided by the application can timely release the electric energy in the energy storage capacitor after the hard disk enters water, and prevent the hard disk storage chip and the control unit from being damaged, so that the hard disk data are protected.
Fig. 6 is a structural diagram of another data protection device according to an embodiment of the present application, and as shown in fig. 6, the data protection device includes: a memory 20 for storing a computer program;
a processor 21 for implementing the steps of the method for acquiring a short-circuit signal as described in the above embodiments when executing the computer program.
The terminal device applied to the hard disk provided in this embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, or the like.
The processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 21 may be implemented in at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), and Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 21 may be integrated with a Graphics Processing Unit (GPU) which is responsible for rendering and drawing the content required to be displayed by the display screen. In some embodiments, the processor 21 may further include an Artificial Intelligence (AI) processor for processing computational operations related to machine learning.
The memory 20 may include one or more computer-readable storage media, which may be non-transitory. Memory 20 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used for storing the following computer program 201, wherein after being loaded and executed by the processor 21, the computer program can implement the relevant steps of the data protection device method disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202, data 203, and the like, and the storage manner may be a transient storage manner or a permanent storage manner. Operating system 202 may include, among others, Windows, Unix, Linux, and the like. Data 203 may include, but is not limited to, a short circuit signal, etc.
In some embodiments, the data protection device may further include a display 22, an input/output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.
Those skilled in the art will appreciate that the configuration shown in fig. 6 does not constitute a limitation of the data protection arrangement and may include more or fewer components than those shown.
The data protection device provided by the embodiment of the application comprises a memory and a processor, wherein when the processor executes a program stored in the memory, the following method can be realized:
judging whether a short-circuit signal sent by a detection circuit is acquired;
and if the short-circuit signal is acquired, the switching device is controlled to be switched on so as to discharge the energy storage capacitor.
Finally, the application also provides a corresponding embodiment of the computer readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps as set forth in the above-mentioned method embodiments.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods described in the embodiments of the present application, or all or part of the technical solutions. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
A data protection system, a data protection method, a data protection device, and a data protection medium provided by the present application are described in detail above. The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A data protection system, comprising:
the device comprises a hard disk power supply circuit (1), a detection circuit (2) and a discharge circuit (3);
the first end of the discharge circuit (3) is connected with the first end of an energy storage capacitor of the hard disk power supply circuit (1), and the second end of the discharge circuit (3) and the second end of the energy storage capacitor are both grounded;
the detection circuit (2) is connected with the discharge circuit (3), and when a short-circuit signal generated by grounding of the detection end of the detection circuit (2) is detected, the discharge circuit (3) is controlled to be conducted, so that the energy storage capacitor is discharged.
2. The data protection system according to claim 1, wherein the detection circuit (2) includes a switching device and a detection coil (5) connected to the switching device;
the detection coil (5) is arranged at the frame of the circuit board (4) of the hard disk, and when the detection coil (5) is grounded due to the short circuit of the hard disk, the short-circuit signal is generated.
3. The data protection system according to claim 2, wherein the switching device is a MOS transistor;
the detection coil (5) is connected with the control end of the MOS tube.
4. The data protection system according to claim 2, wherein the detection circuit (2) further comprises: a current limiting resistor;
the first end of the current-limiting resistor is connected with the second end of the switching device, and the second end of the current-limiting resistor is grounded.
5. The data protection system according to claim 2, wherein the detection circuit (2) further comprises: a boost resistor;
the first end of the boost resistor is connected with the first end of the switch device, and the second end of the boost resistor is connected with the detection circuit (2).
6. A data protection method applied to the data protection system according to any one of claims 1 to 5, comprising:
judging whether a short-circuit signal sent by the detection circuit (2) is acquired or not;
and if the short-circuit signal is acquired, controlling the switching device to be switched on so as to discharge the energy storage capacitor.
7. The data protection method of claim 6, wherein controlling the switching device to conduct to discharge the energy storage capacitor comprises:
judging whether the hard disk power supply circuit (1) stops supplying power or not;
and if the power supply is stopped, controlling the switching device to be switched on under the condition of acquiring the short-circuit signal, so that the energy storage capacitor is discharged.
8. A data protection device, comprising:
the judging module is used for judging whether the short-circuit signal sent by the detection circuit (2) is acquired or not;
and the control module is used for controlling the energy storage resistor to discharge if the short-circuit signal is acquired.
9. A data protection device comprising a memory for storing a computer program;
a processor for implementing the steps of the data protection method according to any one of claims 6 or 7 when executing said computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the data protection method according to any one of claims 6 or 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210108560.3A CN114428981A (en) | 2022-01-28 | 2022-01-28 | Data protection system, data protection method, device and medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210108560.3A CN114428981A (en) | 2022-01-28 | 2022-01-28 | Data protection system, data protection method, device and medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114428981A true CN114428981A (en) | 2022-05-03 |
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ID=81312704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210108560.3A Pending CN114428981A (en) | 2022-01-28 | 2022-01-28 | Data protection system, data protection method, device and medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114428981A (en) |
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2022
- 2022-01-28 CN CN202210108560.3A patent/CN114428981A/en active Pending
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