A data protection system, data protection method, device and medium

Abstract

The present application discloses a data protection system and a data protection method, device and medium, including: a hard disk power supply circuit, a switch device, a detection circuit and a control unit, the control unit is connected to the detection circuit and the switch device, when a short circuit signal sent by the detection circuit is obtained, the switch device is controlled to be turned on, and the detection circuit detects whether there is a short circuit event caused by factors such as water ingress into the hard disk and handles it in time, thereby improving the safety of the hard disk and preventing data loss. The first end of the switch device is connected to 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 both grounded, and are used to be turned on under the control of the control unit to discharge the energy storage capacitor, so as to prevent the electric energy stored in the energy storage resistor from damaging the hard disk. It can be seen that the solution provided by the present application can release the electric energy in the energy storage capacitor in time after the hard disk is flooded, prevent the hard disk storage chip and the control unit from being damaged, and thus protect the hard disk data.

Description

Technical Field

[0001] The present application relates to the field of storage, and in particular to a hard disk protection system and a hard disk protection method, device, and medium. Background Art

[0002] In terminal devices such as servers, data is generally stored on hard disks. Figure 1 This is a structural diagram of a commonly used hard disk power supply circuit, such as Figure 1 As shown, the power management unit controls the DC power supply and the energy storage capacitor to supply power to the storage chip and control unit of the hard disk. The commonly used hard disk protection method is to cut off the DC power supply circuit of the hard disk after the hard disk is flooded, but the energy stored in the energy storage capacitor will damage the storage chip and control unit of the hard disk, resulting in data loss.

[0003] Therefore, it can be seen that how to propose a new data protection method to prevent the hard disk data from being lost after the hard disk is flooded or damaged is a problem that technical personnel in this field need to solve urgently. Summary of the invention

[0004] The purpose of the present application is to provide a data protection system and a data protection method, device and medium to prevent the loss of data in a hard disk after the hard disk is flooded or damaged.

[0005] In order to solve the above technical problems, the present application provides a data protection system, including:

[0006] Hard disk power supply circuit 1, detection circuit 2 and discharge circuit 3;

[0007] The first end of the discharge circuit 3 is connected to 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;

[0008] The detection circuit 2 is connected to the discharge circuit 3. When a short-circuit signal generated by the detection end of the detection circuit 2 being grounded is detected, the discharge circuit 3 is controlled to be turned on to discharge the energy storage capacitor.

[0009] Preferably, the detection circuit 2 comprises a switch device and a detection coil 5 connected to the switch device;

[0010] The detection coil 5 is arranged at the frame of the circuit board 4 of the hard disk. When the detection coil 5 is grounded due to a short circuit of the hard disk, the short circuit signal is sent to the control unit.

[0011] Preferably, the switch device is a MOS tube;

[0012] The control unit is connected to the control end of the MOS tube.

[0013] Preferably, the detection circuit 2 further includes: a current limiting resistor;

[0014] The first end of the current limiting resistor is connected to the second end of the switch device, and the second end of the current limiting resistor is grounded.

[0015] Preferably, the detection circuit 2 further includes: a boost resistor;

[0016] The first end of the boost resistor is connected to the first end of the switch device, and the second end of the boost resistor is connected to the detection circuit 2 .

[0017] In order to solve the above technical problems, the present application also provides a data protection method, including:

[0018] Determine whether the short-circuit signal sent by the detection circuit 2 is obtained;

[0019] If the short-circuit signal is obtained, the switch device is controlled to be turned on so as to discharge the energy storage capacitor.

[0020] Preferably, controlling the switch device to turn on so as to discharge the energy storage capacitor comprises:

[0021] Determine whether the hard disk power supply circuit 1 stops supplying power;

[0022] If the power supply is stopped and the short-circuit signal is obtained, the switch device is controlled to be turned on, thereby discharging the energy storage capacitor.

[0023] In order to solve the above technical problems, the present application also provides a data protection device, which includes:

[0024] A judgment module, used to judge whether a short-circuit signal sent by the detection circuit 2 is obtained;

[0025] The control module is used to control the discharge of the energy storage capacitor if the short-circuit signal is obtained.

[0026] To solve the above technical problems, the present application also provides a data protection device, including a memory for storing a computer program;

[0027] A processor is used to implement the steps of the data protection method when executing the computer program.

[0028] In order to solve the above technical problems, the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the data protection method are implemented.

[0029] The data protection system provided by the present application includes: a hard disk power supply circuit 1, a switch device, a detection circuit 2 and a control unit, the control unit is connected to the detection circuit 2 and the switch device, when the short circuit signal sent by the detection circuit 2 is obtained, the switch device is controlled to be turned on, and the detection circuit 2 detects whether there is a short circuit event caused by factors such as water ingress to the hard disk and handles it in time, thereby improving the safety of the hard disk and preventing data loss. The first end of the switch device is connected to 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 both grounded, and are used to be turned on under the control of the control unit to discharge the energy storage capacitor, so as to prevent the electric energy stored in the energy storage capacitor from damaging the hard disk. It can be seen from this that the solution provided by the present application can release the electric energy in the energy storage capacitor in time after the hard disk is flooded, prevent the hard disk storage chip and the control unit from being damaged, thereby protecting the hard disk data.

[0030] In addition, the present application also provides a data protection method, device and medium, which correspond to the above-mentioned data protection system and have the same effect as above. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a structural diagram of a commonly used hard disk power supply circuit;

[0033] Figure 2 A structural diagram of a data protection system provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the arrangement of a detection coil provided in an embodiment of the present application;

[0035] Figure 4 A flowchart of a data protection method provided in an embodiment of the present application;

[0036] Figure 5 A structural diagram of a data protection device provided in an embodiment of the present application;

[0037] Figure 6 A structural diagram of another data protection device provided in an embodiment of the present application;

[0038] The reference numerals 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

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] The core of this application is to provide a data protection system and a data protection method, device and medium.

[0041] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0042] In the application scenario of the hard disk, the hard disk is mainly used to store data. In order to speed up the data reading and writing speed, a buffer is usually set inside the hard disk. When the hard disk is powered off, it needs to be powered by the internal circuit to write the data in the buffer into the storage chip. When the hard disk is flooded, it is easy to cause the internal power supply circuit to short-circuit and cause damage to the hard disk, resulting in loss or damage of data in the hard disk. In the solution provided by the present application, the power supply circuit is detected by the detection circuit 2. When a short circuit is detected in the power supply circuit, the discharge circuit 3 is controlled to be turned on to discharge the energy storage capacitor. Prevent the energy storage capacitor from discharging after a short circuit and causing damage to the hard disk.

[0043] Figure 2 A structural diagram of a data protection system provided in an embodiment of the present application, such as Figure 2 As shown, the data protection system provided by this application includes:

[0044] Hard disk power supply circuit 1, detection circuit 2 and discharge circuit 3;

[0045] A first end of the discharge circuit 3 is connected to a first end of the energy storage capacitor of the hard disk power supply circuit 1, and a second end of the discharge circuit 3 and a second end of the energy storage capacitor are both grounded;

[0046] The detection circuit 2 is connected to the discharge circuit 3. When a short-circuit signal generated by the detection end of the detection circuit 2 being grounded is detected, the discharge circuit 3 is controlled to be turned on to discharge the energy storage capacitor.

[0047] In a specific implementation, the hard disk power supply circuit 1 is connected to a power source and is used to supply power to the hard disk. The power supply circuit includes: an energy storage capacitor, a power management chip (Power Management Integrated Circuit Chip, PMIC), an overcurrent protection switch, a cache controller and other devices. Among them, one end of the overcurrent protection switch is connected to an external power source, and the other end is connected to the PMIC for overcurrent protection; the energy storage capacitor is connected to the power management chip, and is charged when the external power source is normal, and is discharged when the external power source is disconnected to provide an electrical signal to the cache controller to prevent data loss in the cache area; the PMIC is connected to the cache controller, and is used to supply power to the buffer controller and the buffer area, and supplies power to the subsequent circuit through the external power source when the external power source is normal, and controls the energy storage capacitor to supply power to the subsequent circuit when the external power source is disconnected.

[0048] It is understandable that the detection circuit 2 can be an electronic device such as a current sensor or a voltage sensor, which is used to detect whether the power supply circuit in the hard disk is short-circuited, and control the discharge circuit 3 to be turned on when the detection circuit 2 detects a short-circuit signal. It is understandable that the task of determining whether there is a short-circuit signal can be achieved by the control unit of the detection circuit 2 itself, or by an external control unit, which is not limited here; at the same time, the detection circuit 2 can also be a simple coil structure, and when it is detected that the coil is grounded, it indicates that the power supply circuit inside the hard disk is short-circuited due to water ingress.

[0049] In specific implementation, the energy storage capacitor device is mainly composed of a supercapacitor group, a bidirectional DC / DC converter and a corresponding control circuit. Its technical core lies in the voltage-sharing topology and control strategy inside the supercapacitor group and the topology and control strategy of the bidirectional DC / DC converter. Common energy storage capacitors include double-layer capacitors and farad capacitors.

[0050] It is understandable that the on and off of the discharge circuit 3 can be controlled by a combination of a control unit and a switch device, or by only a switch tube, which is not limited here.

[0051] Furthermore, when it is detected that the internal circuit is short-circuited due to water ingress into the hard disk, in addition to controlling the discharge circuit 3 to be turned on to discharge the energy storage capacitor, it is also necessary to disconnect the hard disk from the external power supply in time to protect the hard disk from damage, thereby achieving the purpose of protecting data.

[0052] In the present embodiment, a data protection system is provided, which includes: a hard disk power supply circuit, a switch device, a detection circuit and a control unit. The control unit is connected to the detection circuit and the switch device. When a short-circuit signal sent by the detection circuit is obtained, the switch device is controlled to be turned on. The detection circuit detects whether there is a short-circuit event caused by factors such as water ingress into the hard disk and handles it in time, thereby improving the safety of the hard disk and preventing data loss. The first end of the switch device is connected to 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 both grounded, and are used to be turned on under the control of the control unit to discharge the energy storage capacitor, thereby preventing the electric energy stored in the energy storage capacitor from damaging the hard disk. It can be seen that the solution provided by the present application can release the electric energy in the energy storage capacitor in time after the hard disk is flooded, thereby preventing the hard disk storage chip and the control unit from being damaged, thereby protecting the hard disk data.

[0053] In a specific implementation, the detection circuit 2 can be an electronic device such as a current sensor, which determines whether the hard disk has water ingress by detecting leakage current; or it can be a detection coil 5 arranged at the edge of the hard disk PCB board. Considering the cost and detection accuracy of the two solutions, the second solution is selected in this embodiment.

[0054] On the basis of the above embodiment, the detection circuit 2 includes a switch device and a detection coil 5 connected to the switch device;

[0055] The detection coil 5 is arranged at the frame of the circuit board 4 of the hard disk. When the detection coil 5 is grounded due to a short circuit of the hard disk, a short circuit signal is generated.

[0056] Figure 3 A schematic diagram of the arrangement of a detection coil 5 provided in an embodiment of the present application is shown in FIG. Figure 3 As shown, the detection coil 5 is arranged at the frame of the circuit board 4 of the hard disk, and the detection coil 5 is evenly arranged at the edges of both sides of the circuit board 4. At the same time, the area adjacent to the detection coil 5 in the hard disk box is evenly arranged with grounded coils. When water enters the hard disk box, the detection coil 5 is grounded, and the detection circuit 2 sends a short-circuit signal to the control unit to control the discharge of the energy storage capacitor.

[0057] Furthermore, the detection coil 5 is connected to the control end of the switch device. When the detection coil 5 is grounded, the switch device is controlled to be turned on to discharge the energy storage capacitor.

[0058] It can be understood that the detection coil 5 used in this embodiment is a coil with exposed copper wire. In order to improve the detection sensitivity, the number of detection coils 5 and grounding coils 6 in the hard disk box can be increased without affecting the normal operation of the hard disk.

[0059] In this embodiment, a detection coil arranged at the frame of the circuit board of the hard disk is used to detect whether the internal circuit of the hard disk is short-circuited, thereby determining whether the hard disk has been flooded. This increases the accuracy of detecting water intrusion into the hard disk and reduces system costs.

[0060] In a specific implementation, the switch device may be an electronic module with a processing chip, or may be a switch tube.

[0061] In a specific implementation, the switch tube includes a MOS tube and a triode, wherein the triode is mostly used in current drive circuits, while the MOS tube is a voltage control device and is often used in voltage drive circuits. The MOS tube has the advantages of low power consumption and high output impedance, and has good temperature characteristics and noise characteristics, which can make the circuit more stable. In a specific implementation, the MOS tube has a much higher upper frequency limit than the triode, and is safer and more stable, so the MOS tube is usually selected as the switch device.

[0062] Based on the above embodiment, the switch device is MOS tube Q1; the detection coil 5 is connected to the control end of MOS tube Q1. When the detection coil 5 is short-circuited to the ground, the control end voltage of MOS tube Q1 is 0, MOS tube Q1 is turned on, and the energy storage capacitor starts to discharge.

[0063] In this embodiment, the discharge of the energy storage capacitor is controlled by the MOS tube, which reduces the hardware cost of the data protection system and also reduces the power consumption of the circuit, making the circuit more stable and reliable.

[0064] It is understandable that the hard disk may be damaged due to the excessive current when the energy storage capacitor is discharged.

[0065] In order to solve this problem, based on the above embodiment, the detection circuit 2 further includes: a current limiting resistor R2;

[0066] A first end of the current limiting resistor R2 is connected to the second end of the switch device, and a second end of the current limiting resistor R2 is grounded.

[0067] In this embodiment, by connecting a current limiting resistor in the detection circuit, the internal power supply circuit of the hard disk is protected. At the same time, the energy storage capacitor can be prevented from being broken down, thereby improving the safety and reliability of the internal power supply circuit of the hard disk.

[0068] In a specific implementation, since the detection coil 5 is grounded after the hard disk is flooded, it will cause excessive current in the detection circuit 2, causing damage to the internal power supply circuit of the hard disk.

[0069] On the basis of the above embodiment, the detection circuit 2 further includes: a boost resistor R1;

[0070] A first end of the boost resistor R1 is connected to a first end of the switch device, and a second end of the boost resistor R1 is connected to the detection circuit 2 .

[0071] It can be understood that the second end of the boost resistor R1 is also connected to the control end of the MOS tube Q1 to increase the voltage of the control end of the MOS tube Q1.

[0072] In the specific implementation process, when the hard disk works normally, the boost resistor R1 is pulled up and the MOS tube Q1 is turned off; when the hard disk is flooded, the detection coil 5 is grounded, the MOS tube Q1 is turned on, and the energy storage capacitor discharges through the loop where the current limiting resistor R2 is located.

[0073] In this embodiment, a boost resistor is connected in the circuit to improve the stability and reliability of the power supply circuit and the discharge circuit inside the hard disk.

[0074] Figure 4 A flowchart of a data protection method provided in an embodiment of the present application is shown in FIG. Figure 4 As shown, this embodiment provides a data protection method, which is applied to the above-mentioned data protection system, and the method includes:

[0075] S10: Determine whether the short-circuit signal sent by the detection circuit 2 is obtained.

[0076] S11: If a short-circuit signal is obtained, the switch device is controlled to be turned on so as to discharge the energy storage capacitor.

[0077] It is understandable that the detection circuit 2 may be a circuit for detecting short circuit conditions through electronic devices such as current sensors, or may be a detection coil 5 arranged on the hard disk circuit board 4, which is not limited here.

[0078] In a specific implementation, the control unit that executes the method may be a separate control unit or a buffer control unit of a hard disk. The latter solution can save hardware costs.

[0079] Since the embodiments of the system part correspond to the embodiments of the method part, please refer to the description of the embodiments of the system part for the embodiments of the method part, which will not be repeated here.

[0080] In the present embodiment, a data protection method is provided, which includes: a hard disk power supply circuit 1, a switch device, a detection circuit 2 and a control unit, the control unit is connected to the detection circuit 2 and the switch device, when a short circuit signal sent by the detection circuit 2 is obtained, the switch device is controlled to be turned on, and the detection circuit 2 detects whether there is a short circuit event caused by factors such as water ingress to the hard disk and handles it in time, thereby improving the safety of the hard disk and preventing data loss. The first end of the switch device is connected to 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 both grounded, and are used to be turned on under the control of the control unit to discharge the energy storage capacitor, so as to prevent the electric energy stored in the energy storage capacitor from damaging the hard disk. It can be seen that the solution provided by the present application can release the electric energy in the energy storage capacitor in time after the hard disk is flooded, prevent the hard disk storage chip and the control unit from being damaged, thereby protecting the hard disk data.

[0081] In a specific implementation, when it is detected that the internal circuit is short-circuited due to water ingress into the hard disk, in addition to controlling the discharge circuit 3 to be turned on to discharge the energy storage capacitor, it is also necessary to disconnect the hard disk from the external power supply in time to protect the hard disk from being damaged, thereby achieving the purpose of protecting data.

[0082] Based on the above embodiment, controlling the switch device to turn on so as to discharge the energy storage capacitor includes:

[0083] Determine whether the hard disk power supply circuit 1 stops supplying power;

[0084] If the power supply is stopped or a short circuit signal is obtained, the switch device is controlled to be turned on, thereby discharging the energy storage capacitor.

[0085] In this embodiment, the energy storage capacitor is controlled to discharge after it is determined that the hard disk power supply circuit stops supplying power, thereby preventing the external power supply of the hard disk from being grounded due to the discharge of the energy storage capacitor, thereby improving the safety of the system.

[0086] In the above embodiments, the data protection method is described in detail, and the present application also provides corresponding embodiments of the data protection device. It should be noted that the present application describes the embodiments of the device part from two perspectives, one is based on the functional module perspective, and the other is based on the hardware perspective.

[0087] Since the embodiments of the apparatus part correspond to the embodiments of the method part, please refer to the description of the embodiments of the method part for the embodiments of the apparatus part, which will not be repeated here.

[0088] Figure 5 A structural diagram of a data protection device provided in an embodiment of the present application, such as Figure 5 As shown, the device comprises:

[0089] A judging module 10, used to judge whether a short circuit signal sent by the detection circuit 2 is obtained;

[0090] The control module 11 is used to control the energy storage capacitor to discharge if a short circuit signal is obtained.

[0091] The present application provides a data protection device, which is applied to the above-mentioned data protection system, and the system includes: a hard disk power supply circuit, a switch device, a detection circuit and a control unit. The control unit is connected to the detection circuit and the switch device. When a short-circuit signal sent by the detection circuit is obtained, the switch device is controlled to be turned on. The detection circuit detects whether there is a short-circuit event caused by factors such as water ingress to the hard disk and handles it in time, thereby improving the safety of the hard disk and preventing data loss. The first end of the switch device is connected to 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 both grounded, and are used to be turned on under the control of the control unit to discharge the energy storage capacitor, so as to prevent the electric energy stored in the energy storage capacitor from damaging the hard disk. It can be seen that the solution provided by the present application can release the electric energy in the energy storage capacitor in time after the hard disk is flooded, prevent the hard disk storage chip and the control unit from being damaged, and thus protect the hard disk data.

[0092] Figure 6 A structural diagram of another data protection device provided in an embodiment of the present application, such as Figure 6 As shown, the data protection device includes: a memory 20 for storing a computer program;

[0093] The processor 21 is used to implement the steps of the method for obtaining the short-circuit signal in the above embodiment when executing the computer program.

[0094] The terminal device to which the hard disk provided in this embodiment is applied may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0095] Among them, the processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can 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. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the 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 to be displayed on the display screen. In some embodiments, the processor 21 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0096] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 20 is at least used to store the following computer program 201, wherein, after the computer program is loaded and executed by the processor 21, it can implement the relevant steps of the data protection device method disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 202 may include Windows, Unix, Linux, etc. Data 203 may include but is not limited to short-circuit signals, etc.

[0097] In some embodiments, the data protection device may further include a display screen 22 , an input / output interface 23 , a communication interface 24 , a power supply 25 , and a communication bus 26 .

[0098] Those skilled in the art will understand that Figure 6 The structure shown in the figure does not constitute a limitation on the data protection device, and may include more or fewer components than those shown in the figure.

[0099] The data protection device provided in the embodiment of the present application includes a memory and a processor. When the processor executes a program stored in the memory, it can implement the following method:

[0100] Determine whether a short-circuit signal sent by the detection circuit is obtained;

[0101] If a short-circuit signal is obtained, the switch device is controlled to be turned on so as to discharge the energy storage capacitor.

[0102] Finally, the present application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps recorded in the above method embodiment are implemented.

[0103] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk and other media that can store program code.

[0104] The above is a detailed introduction to a data protection system and a data protection method, device and medium provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referenced to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

[0105] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

Claims

1. A data protection system, characterized in that: include: 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 to 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 to the discharge circuit (3), and when a short-circuit signal generated by the detection end of the detection circuit (2) being grounded is detected, the discharge circuit (3) is controlled to be turned on so as to discharge the energy storage capacitor; The detection circuit (2) comprises a switch device, a detection coil (5) connected to the switch device, a current limiting resistor and a boosting resistor, wherein the first end of the current limiting resistor is connected to the second end of the switch device, the second end of the current limiting resistor is grounded, the first end of the boosting resistor is connected to the first end of the switch device, and the second end of the boosting resistor is connected to the detection circuit (2).

2. The data protection system provided according to claim 1, characterized in that: 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 a short circuit of the hard disk, the short circuit signal is generated.

3. The data protection system provided according to claim 2, characterized in that: The switch device is a MOS tube; The detection coil (5) is connected to the control end of the MOS tube.

4. A data protection method, applied to the data protection system according to any one of claims 1 to 3, characterized in that: include: Determining whether a short-circuit signal sent by the detection circuit (2) is obtained; If the short-circuit signal is obtained, the switch device is controlled to be turned on so as to discharge the energy storage capacitor.

5. The data protection method according to claim 4, characterized in that: The controlling the switch device to conduct so as to discharge the energy storage capacitor comprises: Determining whether the hard disk power supply circuit (1) stops supplying power; If the power supply is stopped, then when the short-circuit signal is obtained, the switch device is controlled to be turned on, so that the energy storage capacitor is discharged.

6. A data protection device, characterized in that: include: A judgment module, used for judging whether a short-circuit signal sent by a detection circuit (2) in a data protection system according to any one of claims 1 to 3 is obtained; The control module is used to control the discharge of the energy storage capacitor if the short-circuit signal is obtained.

7. A data protection device, characterized in that: comprising a memory for storing a computer program; A processor, configured to implement the steps of the data protection method as described in any one of claims 4 or 5 when executing the computer program.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the data protection method according to any one of claims 4 or 5 are implemented.

Images