CN114912152A - Hard disk and hard disk self-destruction method - Google Patents

Abstract

The invention discloses a hard disk and a hard disk self-destruction method. Wherein, this hard disk includes: a magnetic disk; the detection unit is used for acquiring the state information of the hard disk; the self-destruction mechanism comprises a valve part, a reagent bottle and a driving part which are connected in sequence, wherein the reagent bottle is used for containing a self-destruction reagent; the first control unit is respectively connected with the detection unit and the valve component; the first control unit is used for receiving the state information from the detection unit and controlling the valve component to be opened according to the state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc. According to the scheme of the embodiment of the invention, the hard disk destroying function can be automatically started under the condition that the computer or the mechanical hard disk is stolen or lost, so that the magnetic disk for storing information in the mechanical hard disk is automatically damaged, and the data stored in the magnetic disk cannot be restored.

Description

Hard disk and hard disk self-destruction method

Technical Field

The invention relates to the technical field of computer information security, in particular to a hard disk and a hard disk self-destruction method.

Background

The general secret-related computer or information storage device has an information storage function, and the mechanical hard disk is an information storage device with large storage capacity, low price and high reliability. At present, most of mechanical hard disks used in secret places such as secret related units and the like do not have a self-destruction function, and when a computer is stolen or the mechanical hard disks are stolen, file data stored in the hard disks can be stolen, so that information leakage is caused.

Disclosure of Invention

The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a hard disk and a hard disk self-destruction method, which can automatically start a hard disk destruction function under the condition that a computer or a mechanical hard disk is stolen or lost, so that a magnetic disk storing information in the mechanical hard disk is automatically destroyed, and data stored in the magnetic disk cannot be restored to prevent information leakage.

In a first aspect, an embodiment of the present invention provides a hard disk, including:

a magnetic disk;

the detection unit is used for acquiring the state information of the hard disk;

the self-destruction mechanism comprises a nozzle, a valve part, a reagent bottle and a driving part which are connected in sequence, wherein the reagent bottle is used for containing a self-destruction reagent;

the first control unit is respectively connected with the detection unit and the valve component;

the first control unit is used for receiving the state information from the detection unit and controlling the valve component to be opened according to the state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

Optionally, in an embodiment of the present invention, the hard disk further includes an external communication port, the external communication port is used for connecting an external communication device, and the external communication port is connected to the detection unit;

the detection unit is specifically configured to:

acquiring the identity identification information of the external communication equipment;

the first control unit is specifically configured to:

and controlling the valve part to be opened according to the identification information so that the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

Optionally, in an embodiment of the present invention, the hard disk further includes an external self-destruction port, the external self-destruction port is in communication connection with the detection unit, and the first control unit is in communication connection with the second control unit;

the detection unit is specifically configured to:

acquiring self-destruction control information of the external self-destruction port;

the first control unit is specifically configured to:

and sending the self-destruction control information to the second control unit so that the second control unit controls the valve part to be opened according to the self-destruction control information, and the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

Optionally, in an embodiment of the present invention, the hard disk further includes a power interface and a data interface, and both the power interface and the data interface are in communication connection with the detection unit;

the detection unit is specifically configured to:

acquiring first connection state information of the power interface and second connection state information of the data interface;

the first control unit is specifically configured to:

and respectively controlling the data access authority of the disk according to the first connection state information and the second connection state information.

Optionally, in one embodiment of the present invention, the self-destruct mechanism comprises a nozzle connected to the valve member, the valve member being disposed between the nozzle and the reagent bottle.

Optionally, in an embodiment of the present invention, the detection unit includes a sensing component;

the sensing component is specifically configured to:

acquiring shell state information of the hard disk;

the first control unit is specifically configured to:

and controlling the valve component to be opened according to the shell state information so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

In a second aspect, an embodiment of the present invention provides a hard disk self-destruction method, which is applied to a hard disk, where the hard disk includes a magnetic disk, a casing, a detection unit, a self-destruction mechanism, and a first control unit, the self-destruction mechanism includes a valve part, a reagent bottle, and a drive part that are connected in sequence, the reagent bottle is used for containing a self-destruction reagent, and the first control unit is connected to the detection unit and the valve part, respectively;

the hard disk self-destruction method comprises the following steps:

receiving status information from the detection unit;

and controlling the valve component to be opened according to the state information so as to enable the driving component to push the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

Optionally, in an embodiment of the present invention, the hard disk further includes an external communication port, the external communication port is used for connecting an external communication device, and the external communication port is in communication connection with the detection unit;

the receiving the state information from the detection unit includes:

and receiving the identification information of the external communication equipment through the detection unit.

Optionally, in an embodiment of the present invention, the hard disk further includes an external self-destruction port, the external self-destruction port is in communication connection with the detection unit, and the first control unit is in communication connection with the second control unit;

the hard disk self-destruction method further comprises the following steps:

receiving self-destruction control information of the external self-destruction port through the detection unit;

and sending the self-destruction control information to a second control unit so that the second control unit controls the valve part to be opened according to the self-destruction control information, and the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

Optionally, in an embodiment of the present invention, the hard disk further includes a power interface and a data interface, and both the power interface and the data interface are in communication connection with the first control unit;

the hard disk self-destruction method further comprises the following steps:

receiving first connection state information of the power interface and second connection state information of the data interface through the detection unit;

and respectively controlling the data access authority of the disk according to the first connection state information and the second connection state information.

The embodiment of the invention comprises the following steps: the system comprises a magnetic disk, a detection unit, a self-destruction mechanism and a first control unit, wherein the detection unit can be used for acquiring state information of the hard disk; the self-destruction mechanism comprises a valve part, a reagent bottle and a driving part which are connected in sequence, wherein the reagent bottle is used for containing a self-destruction reagent; the first control unit is respectively connected with the detection unit and the valve component, and the first control unit can be used for receiving the state information from the detection unit and then controlling the valve component to be opened according to the state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc. According to the scheme of the embodiment of the invention, when the state of the hard disk is abnormal, the detection unit can send state information to the first control unit, the first control unit receives the state information from the detection unit and controls the valve component of the self-destruction mechanism to be opened according to the state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk, the magnetic disk is automatically destroyed, and the data stored in the magnetic disk cannot be restored.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a schematic structural diagram of a hard disk according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a hard disk according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a hard disk according to another embodiment of the present invention;

FIG. 4 is a schematic structural view of a nozzle provided in accordance with another embodiment of the present invention;

FIG. 5 is a schematic diagram of a valve member according to another embodiment of the present invention;

FIG. 6 is a diagram illustrating a hard disk according to another embodiment of the present invention;

FIG. 7 is a flowchart illustrating a hard disk self-destruction method according to an embodiment of the present invention;

FIG. 8 is a flowchart of a specific method of step S110 in FIG. 7;

FIG. 9 is a flowchart illustrating a method for self-destruction of a hard disk according to another embodiment of the present invention;

FIG. 10 is a flowchart illustrating a method for self-destruction of a hard disk according to another embodiment of the present invention;

FIG. 11 is a flowchart of a hard disk self-destruction method according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a hard disk according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

The invention provides a hard disk and a hard disk self-destruction method, wherein the hard disk comprises a magnetic disk, a detection unit, a self-destruction mechanism and a first control unit, wherein the detection unit can be used for acquiring state information of the hard disk; the self-destruction mechanism comprises a valve part, a reagent bottle and a driving part which are connected in sequence, wherein the reagent bottle is used for containing a self-destruction reagent; the first control unit is respectively connected with the detection unit and the valve component, and the first control unit can be used for receiving state information from the detection unit and then controlling the valve component to be opened according to the state information so as to enable the driving component to push the reagent bottle to discharge the self-destruction reagent to the magnetic disk, therefore, the hard disk destruction function can be automatically started under the condition that a computer or a mechanical hard disk is stolen or lost, the magnetic disk storing information in the mechanical hard disk is automatically damaged, and data stored in the magnetic disk cannot be restored so as to prevent information leakage.

The embodiments of the present invention will be further explained with reference to the drawings.

Referring to fig. 1 and 2, fig. 1 and 2 are schematic structural diagrams of a hard disk according to an embodiment of the present invention. The hard disk comprises a magnetic disk 107, a detection unit 130, a self-destruction mechanism 120 and a first control unit 140, wherein the detection unit 130 is used for acquiring state information of the hard disk, the self-destruction mechanism 120 comprises a valve part 121, a reagent bottle 122 and a driving part 123 which are sequentially connected, and the reagent bottle 122 is used for containing a self-destruction reagent; the first control unit 140 is connected to the sensing unit 130 and the valve part 121, respectively.

In one embodiment, the hard disk may further include a housing 100, a spindle 104, a head 105, a head parking area 106, a head arm 108, a voice coil motor 109, and a permanent magnet 110, wherein the spindle 104 is used to fix a magnetic disk 107; when the hard disk accesses data, the movement of the head arm 108 drives the head 105 into a central position of a specified track and accurately tracks the track; when the hard disk is powered off, the magnetic head 105 is pulled to the magnetic head parking area 106 to avoid the damage of the magnetic head 105 and the surface of the magnetic disk 107 and also ensure that the magnetic head 105 and the magnetic disk 107 are not in direct contact; the magnetic head 105 contacts the magnetic disk 107 at startup for reading and writing data; the magnetic disk 107 is driven by a spindle motor (not shown) to rotate, and the magnetic head 105 is driven by a voice coil motor 109 to perform inner and outer circular arc motions along the diameter direction of the magnetic disk 107, so that the magnetic head 105 can read and write to each position on the magnetic disk 107 by the rotation of the magnetic disk 107 and the inner and outer movement of the magnetic head 105, which is not limited in this respect.

In an embodiment, the first control unit 140 is configured to receive the status information from the detection unit 130, and control the valve component 121 to open according to the status information, so that the driving component 123 pushes the reagent bottle 122 to discharge the self-destruction reagent to the disk 107, thereby causing the disk 107 to be automatically destroyed, and the data stored in the disk 107 cannot be restored.

It should be noted that the self-destruction reagent may be sulfuric acid, hydrochloric acid, or a special destruction solution, or may be other reagents or ultrafine powder that can corrode or wear the disk 107 and make the data in the disk 107 nonreducible, and is not limited herein.

It should be noted that the number of the disks 107 is not limited, and may be 1, 2, 4, or other numbers, and is not limited herein.

It should be further noted that the valve member 121 may be installed on the side of the reagent bottle 122 (for example, on the left side and near the mouth of the reagent bottle 122), or may be installed at other positions, and is not limited herein.

It should be noted that the reagent bottle 122 is communicated with the valve part 121, and the self-destruct reagent in the reagent bottle 122 can flow into the valve part 121 from the reagent bottle 122.

It should be noted that, a groove may be disposed inside the hard disk, and the valve component 121, the reagent bottle 122 and the driving component 123 are installed in the groove; alternatively, the valve part 121, the reagent bottle 122, and the driving part 123 may be installed outside the hard disk as long as the nozzle outlet is inside the hard disk, and are not particularly limited herein.

It should be noted that the valve component 121 may be an electromagnetic valve, an electric control valve, an air control valve, or the like, wherein the electromagnetic valve may be a gas electromagnetic valve, a micro electromagnetic valve, a pulse electromagnetic valve, a direct current electromagnetic valve, or the like, and is not limited in particular.

It should be noted that the first control unit 140 may be mounted on the back of the casing of the hard disk, as shown in fig. 2; the first control unit 140 may also be installed inside the casing 100 of the hard disk, or at other positions, which is not particularly limited herein.

It should be further noted that the driving component 123 may include a motor and a transmission assembly, and may also be a linear motor, an accumulator, an air bag, a spring, or other driving component 123 including an actuator and capable of pushing the reagent bottle 122 to move, where the motor may be a servo motor or a stepping motor, and is not limited herein.

In addition, in some implementations, the hard disk further includes an external communication port for connecting an external communication device, and the external communication port is communicatively connected to the detection unit. The detection unit can be specifically used for acquiring the identity identification information of the external communication equipment; the first control unit is specifically used for controlling the valve component to be opened according to the identity identification information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk, the magnetic disk storing information in the mechanical hard disk is automatically damaged, and data stored in the magnetic disk cannot be restored to prevent information leakage.

It should be noted that the hard disk can identify the external communication device connected to the hard disk. Specifically, the detection unit acquires identity recognition information of external communication equipment and sends the identity recognition information to the first control unit, the first control unit receives the identity recognition information from the detection unit and compares the identity recognition information of the external communication equipment with authorized identity recognition information in the hard disk (namely the identity recognition information already stored in the magnetic disk), if the identity recognition information is inconsistent with the authorized identity recognition information in the hard disk, the first control unit controls the valve part to be opened, so that the driving part pushes the reagent bottle to discharge self-destruction reagents to the magnetic disk, the magnetic disk storing the information in the mechanical hard disk is automatically damaged, and data stored in the magnetic disk cannot be restored to prevent information leakage; or if the comparison is consistent, a channel for data exchange between the hard disk and the external communication equipment is opened, the hard disk works normally, and the detection unit acquires the state information of the hard disk in real time in the normal working process of the hard disk so as to ensure the safety of data in the magnetic disk.

It should be noted that the identification information may include a MAC address, a device serial number, or user information, and is not limited herein.

It should be noted that the external communication device may be a hard disk, or other terminal devices, and the terminal device may be a Mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a vehicle-mounted electronic device, a wearable device, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), and the embodiments of the present invention are not limited in particular.

In addition, in some implementations, the hard disk further includes an external self-destruction port, the external self-destruction port is in communication connection with the detection unit, and the first control unit is in communication connection with the second control unit; the detection unit is specifically used for acquiring self-destruction control information of an external self-destruction port; the first control unit is specifically used for sending self-destruction control information to the second control unit, so that the second control unit controls the valve part to be opened according to the self-destruction control information, the driving part drives the reagent bottle to discharge the self-destruction reagent to the magnetic disk, the magnetic disk storing information in the mechanical hard disk is automatically damaged, data stored in the magnetic disk cannot be restored, the safety of the data of the hard disk is improved, and information leakage is prevented.

Specifically, the detection unit detects an external self-destruction port to obtain self-destruction control information, the self-destruction control information is sent to the first control unit, the first control unit sends the received self-destruction control information to the second control unit, the second control unit analyzes the self-destruction control information, and when the analysis result shows that the state of the hard disk or a computer provided with the hard disk is abnormal, the second control unit can control the valve part to be opened so that the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk, so that the magnetic disk storing information in the mechanical hard disk is automatically destroyed, data stored in the magnetic disk cannot be restored, and the safety of hard disk data is improved to prevent information leakage; when the analysis result shows that the state of the hard disk or the computer provided with the hard disk is normal, the hard disk normally works, and in the process of normal work of the hard disk, the detection unit acquires state information of the hard disk in real time, such as self-destruction control information, so as to ensure the safety of data in the magnetic disk.

It should be noted that the hard disk may communicate with the second control unit through an external self-destruction port. The second control unit is a control unit independent from the hard disk, for example, the second control unit may be located in another hard disk, or other components, functional circuits, integrated circuits, or chips in a terminal device, where the terminal device may be a Mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a vehicle-mounted electronic device, a wearable device, a super Mobile Personal, a Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), and the embodiments of the present invention are not limited in particular.

It should be noted that the number of the second control units is not limited, and may be one, two, four, or other numbers, and the like, and is not limited herein.

In addition, in some implementations, as shown in fig. 6, the hard disk further includes a power interface 103 and a data interface 102, and both the power interface 103 and the data interface 102 are in communication connection with the detection unit; the detection unit is specifically configured to obtain first connection state information of the power interface 103 and second connection state information of the data interface 102; the first control unit is specifically configured to control data access rights of the disk according to the first connection state information and the second connection state information.

The first connection state information may be a connection state of a power cable connected to the power interface 103 of the hard disk, and the second connection state information may be a connection state of a data cable connected to the data interface 102 of the hard disk.

In an optional embodiment, when the first connection state information indicates that the power cable is abnormally pulled out, the detection unit sends the first connection state information to the first control unit, the first control unit receives the first connection state information from the detection unit, records the first connection state information in the hard disk, and the first control unit can control the data access authority of the magnetic disk to be inaccessible; when the first connection state information indicates that the power cable is normally connected, the first control unit may control the data access right of the disk to be accessible, which is not specifically limited in the embodiment of the present invention.

In an optional embodiment, when the second connection state information indicates that the data cable is abnormally pulled out, the detection unit sends the second connection state information to the first control unit, the first control unit receives the second connection state information from the detection unit, records the second connection state information in the hard disk, and the first control unit can control the data access authority of the hard disk to be inaccessible; when the second connection state information represents that the data cable is normally connected, the first control unit may control the data access right of the disk to be accessible, which is not specifically limited in the embodiment of the present invention.

Additionally, in some implementations, as shown in fig. 1, 4, and 5, the self-destruct mechanism 120 includes a nozzle 124, the nozzle 124 coupled to a valve member 121, the valve member 121 disposed between the nozzle 124 and the reagent bottle 122.

It should be noted that the nozzle 124 may be connected to the front end of the valve member 121, and the nozzle 124 communicates with the valve member 121, and the valve member 121 communicates with the reagent bottle 122, which is not particularly limited herein.

In an alternative embodiment, the nozzle 124 is provided with a nozzle 125 along the axial direction of the magnetic disk 107, and the nozzle 125 faces the upper surface and the lower surface of the magnetic disk 107, when the valve member 121 is opened, the driving member may push the reagent bottle 122 to discharge the self-destruction reagent in the reagent bottle 122 from the reagent bottle 122, then the reagent bottle flows through the valve member 121, and finally the reagent bottle is sprayed from the nozzle 125 of the nozzle 124 to the upper surface and the lower surface of the magnetic disk 107, so that the magnetic disk 107 storing information in the mechanical hard disk is automatically destroyed, and the data stored in the magnetic disk 107 cannot be restored to prevent information leakage, which is not particularly limited in the embodiment of the present invention. It should be noted that the number of the ejection openings 125 is not limited, and may be one, two, three or more, and all the ejection openings 125 are opposite to the upper surface, the lower surface, or both the upper surface and the lower surface of the magnetic disk 107, and is not limited herein. For example, when the number of orifices 125 is 3 and the number of disks 107 is 2, a first orifice 125 may be directed toward the upper surface of the first disk 107, a second orifice 125 may be directed toward the lower surface of the first disk 107 and the upper surface of the second disk 107, and a third orifice 125 may be directed toward the lower surface of the second disk 107; alternatively, when the number of orifices 125 is 3 and the number of disks 107 is 3, the first orifice 125 may be directed toward the upper surface of the first disk 107, the second orifice 125 may be directed toward the lower surface of the first disk 107 and the upper surface of the second disk 107, and the third orifice 125 may be directed toward the lower surface of the second disk 107 and the upper surface of the third disk 107; or, when the number of the ejection openings 125 is 3, and the number of the magnetic discs 107 is also 3, the first ejection opening 125 may face the lower surface of the first magnetic disc 107 and the upper surface of the second magnetic disc 107, the second ejection opening 125 may face the lower surface of the second magnetic disc 107 and the upper surface of the third magnetic disc 107, the third ejection opening 125 may face the lower surface of the third magnetic disc 107, and so on.

It should be noted that the number of the nozzles 125 may be equal to the number of the disks 107, may be less than the number of the disks 107, or may be more than the number of the disks 107, and is not limited herein.

It should also be noted that, when the self-destructive agent is a liquid, the nozzle 125 may be designed into a suitable shape according to the components of the agent and the viscosity of the agent, so as to achieve the atomization effect, increase the adsorption capacity between the agent and the magnetic disk, and the damage effect of the magnetic disk.

In an embodiment, a high-speed axial flow fan or a high-speed gas nozzle may be installed at the nozzle 125, or another component capable of spraying the self-destruction reagent to the disk, where the embodiment can spray the self-destruction reagent to the disk to achieve the purpose of damaging the disk, so that the data stored in the disk cannot be restored to prevent information leakage, and this is not limited in the embodiment of the present invention.

In addition, in some implementations, referring to fig. 1 and 2, the detection unit 130 includes a sensing component, and the sensing component can specifically acquire the casing state information of the hard disk and send the casing state information to the first control unit 140, and the first control unit 140 can receive the casing state information of the hard disk acquired by the sensing component and control the valve component to open according to the casing state information, so that the driving component 123 pushes the reagent bottle 122 to discharge the self-destruction reagent to the magnetic disk 107, thereby causing the magnetic disk 107 storing information in the mechanical hard disk to be automatically destroyed, and data stored in the magnetic disk 107 cannot be restored, so as to prevent information leakage.

In an alternative embodiment, as shown in fig. 6, the sensing component may be disposed on the upper cover plate 101 of the casing 100 of the hard disk, may also be disposed at other positions of the casing 100 of the hard disk, and may also be disposed inside the hard disk, which is not limited herein.

It should be noted that the sensing component may be a non-contact sensing component or a contact sensing component, and is not limited herein. For example, the non-contact sensing component may be a human pyroelectric infrared sensor, a vibration sensor, a displacement sensor or a visual sensor, and may also be other sensing components, and the contact sensing component may be a pressure sensor or a temperature sensor, etc., which are not listed here.

As an example, it is assumed that the sensing component is a visual sensor, the visual sensor is disposed inside the hard disk, when the housing of the hard disk is opened, the visual sensor captures an image of a person who opens the housing and sends the image to the first control unit, the first control unit compares the image with a reference image stored in the memory, and when the comparison is inconsistent, the first control unit controls the valve component to open, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk, thereby causing the magnetic disk storing information in the mechanical hard disk to be automatically destroyed, and data stored in the magnetic disk cannot be restored to prevent information leakage.

As an example, it is assumed that the sensing component is a pressure sensor, and the pressure sensor is disposed on an upper cover plate of the hard disk casing, when the hard disk casing is opened abnormally (for example, the hard disk casing is detached violently), the pressure sensor may sense a change in stress of the casing, then the pressure sensor sends the casing state information to the first control unit, and after the first control unit receives the casing state information from the pressure sensor, the first control unit controls the valve component to open according to the casing state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk, thereby causing the magnetic disk storing information in the mechanical hard disk to be automatically destroyed, and data stored in the magnetic disk cannot be restored to prevent information leakage.

Based on the structure of the hard disk of the above embodiments, various embodiments of the hard disk self-destruction method are proposed below.

As shown in fig. 7, fig. 7 is a flowchart of a hard disk self-destruction method according to an embodiment of the present invention, where the hard disk self-destruction method may be applied to a hard disk in the embodiment shown in fig. 1, and the hard disk self-destruction method may include, but is not limited to, step S110 and step S120.

Step S110: receiving status information from the detection unit;

step S120: and controlling the valve part to open according to the state information so that the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

In an embodiment, under the condition that the self-destruction mechanism comprises a valve component, a reagent bottle and a driving component which are sequentially connected, the reagent bottle contains a self-destruction reagent, and the first control unit is respectively connected with the detection unit and the valve component, the first control unit can receive state information from the detection unit and control the valve component to open according to the state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to a magnetic disk, the magnetic disk is automatically damaged, and data stored in the magnetic disk cannot be restored.

It should be noted that the self-destruction reagent may be sulfuric acid, hydrochloric acid, or a special destruction solution, and may also be other reagents or ultrafine powders that can corrode or abrade the magnetic disk and make the data in the magnetic disk non-reducible, which is not limited herein.

It should be noted that the number of the disks is not limited, and may be 1, 2, 4 or other numbers, and is not limited herein.

It should be further noted that the valve component may be installed on the side of the reagent bottle (for example, on the left side and near the mouth of the reagent bottle), or may be in other positions, which is not limited herein.

It should also be noted that the reagent bottle is in communication with the valve assembly, and that the self-destructive reagent in the reagent bottle is able to flow from the reagent bottle into the valve assembly.

It should be noted that, a groove may be provided inside the hard disk, and a valve member, a reagent bottle and a driving member are installed in the groove; alternatively, the valve part, the reagent bottle and the driving part may be installed outside the hard disk as long as the nozzle outlet is inside the hard disk, and are not particularly limited herein.

It should be noted that the first control unit may be installed on the back of the casing of the hard disk, or inside the casing of the hard disk, or in another position, which is not limited herein.

It should be noted that the driving component may include a motor and a transmission assembly, and may also be other driving components capable of pushing the reagent bottle, where the motor may be a servo motor or a stepper motor, and the like, and is not limited herein.

In addition, in an embodiment, when the hard disk further includes an external communication port, the external communication port is connected to an external communication device, and the external communication port is communicatively connected to the detection unit, referring to fig. 8, step S110 may include, but is not limited to, step S210.

Step S210: and receiving the identity identification information of the external communication equipment through the detection unit.

In one embodiment, the hard disk can identify an external communication device connected with the hard disk. When the detection unit acquires the identity identification information of the external communication equipment, the identity identification information is sent to the first control unit, the first control unit receives the identity identification information from the detection unit, the identity identification information of the external communication equipment is compared with the authorized identity identification information in the hard disk (namely the identity identification information already stored in the magnetic disk), if the comparison is inconsistent, the first control unit controls the valve part to be opened, so that the driving part pushes the reagent bottle to discharge self-destruction reagent to the magnetic disk, the magnetic disk storing the information in the mechanical hard disk is automatically damaged, and the data stored in the magnetic disk cannot be restored to prevent information leakage; or if the comparison is consistent, a channel for data exchange between the hard disk and the external communication equipment is opened, the hard disk works normally, and the detection unit acquires the state information of the hard disk in real time in the normal working process of the hard disk so as to ensure the safety of data in the magnetic disk.

It should be noted that the identification information may include a MAC address, a device serial number, or user information, and is not limited herein.

It should be noted that the external communication device may be a hard disk, or other terminal devices, and the terminal device may be a Mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a vehicle-mounted electronic device, a wearable device, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), and the embodiments of the present invention are not limited in particular.

In addition, in an embodiment, when the hard disk further includes an external self-destruction port, the external self-destruction port is communicatively connected to the detection unit, and the first control unit is communicatively connected to the second control unit, then, referring to fig. 9, the hard disk self-destruction method may include, but is not limited to, step S310 and step S320.

Step S310: receiving self-destruction control information of an external self-destruction port through a detection unit;

step S320: and sending self-destruction control information to the second control unit so that the second control unit controls the valve part to be opened according to the self-destruction control information, and the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

In one embodiment, the detection unit receives self-destruction control information of an external self-destruction port and sends the self-destruction control information to the first control unit, the first control unit sends the received self-destruction control information to the second control unit, the second control unit analyzes the self-destruction control information, and when the analysis result is that the state of the hard disk or a computer provided with the hard disk is abnormal, the second control unit can control the valve part to be opened so that the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk, so that the magnetic disk storing information in the mechanical hard disk is automatically destroyed, data stored in the magnetic disk cannot be restored, the safety of hard disk data is improved, and information leakage is prevented; when the analysis result shows that the state of the hard disk or the computer provided with the hard disk is normal, the hard disk normally works, and in the process of normal work of the hard disk, the detection unit acquires state information of the hard disk in real time, such as self-destruction control information, so as to ensure the safety of data in the magnetic disk.

It should be noted that the hard disk may communicate with the second control unit through an external self-destruction port. The second control unit is a control unit independent from the hard disk, for example, the second control unit may be located in another hard disk, or other components, functional circuits, integrated circuits, or chips in a terminal device, where the terminal device may be a Mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a vehicle-mounted electronic device, a wearable device, a super Mobile Personal, a Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), and the embodiments of the present invention are not limited in particular.

It should be noted that the number of the second control units is not limited, and may be one, two, four, or other numbers, and the like, and is not limited herein.

In addition, in an embodiment, when the hard disk further includes a power interface and a data interface, and both the power interface and the data interface are communicatively connected to the first control unit, referring to fig. 10, the hard disk self-destruction method may include, but is not limited to, step S410 and step S420.

Step S410: receiving first connection state information of a power interface and second connection state information of a data interface through a detection unit;

step S420: and respectively controlling the data access authority of the disk according to the first connection state information and the second connection state information.

The first connection state information may be a connection state of a power cable connected to a power interface of the hard disk, and the second connection state information may be a connection state of a data cable connected to a data interface of the hard disk.

In an optional embodiment, when the first connection state information indicates that the power cable is abnormally pulled out, the detection unit receives first connection state information of the power interface and sends the first connection state information to the first control unit, the first control unit receives the first connection state information from the detection unit and records the first connection state information in the hard disk, and the first control unit can control the data access right of the magnetic disk to be inaccessible; when the first connection state information indicates that the power cable is normally connected, the first control unit may control the data access right of the disk to be accessible, which is not specifically limited in the embodiment of the present invention.

In an optional embodiment, when the second connection state information indicates that the data cable is abnormally pulled out, the detection unit receives second connection state information of the power interface and sends the second connection state information to the first control unit, the first control unit receives the second connection state information from the detection unit and records the second connection state information in the hard disk, and the first control unit can control the data access right of the magnetic disk to be inaccessible; when the second connection state information represents that the data cable is normally connected, the first control unit may control the data access right of the disk to be accessible, which is not specifically limited in the embodiment of the present invention.

In an embodiment, when the hard disk normally works, the detection unit needs to detect the states of the external communication device, the external self-destruction port, the power interface, the data interface and the casing of the hard disk, which are connected to the external communication port, in real time, so as to ensure that the data in the hard disk is in a safe state. As an example, as shown in fig. 11, fig. 11 is a flowchart of a normal operation of a hard disk, first, a protection program of the hard disk is started, and in a first step, a detection unit detects a connection state of a power cable of a power interface and a connection state of a data cable of a data interface, respectively, to obtain first connection state information of the power interface and second connection state information of the data interface, and records the first connection state information in the hard disk if the first connection state information indicates that the power cable is abnormally pulled out, or records the second connection state information in the hard disk if the second connection state information indicates that the data cable is abnormally pulled out, and then, a first control unit may control a data access authority of the hard disk to be inaccessible; otherwise, the first control unit can control the data access authority of the disk to be accessible, and then the detection unit and the control unit repeatedly execute the work; secondly, the detection unit identifies the external communication equipment, namely the detection unit acquires the identification information of the external communication equipment and sends the identification information to the first control unit, the first control unit receives the identification information from the detection unit, compares the identification information of the external communication equipment with the authorized identification information in the hard disk (namely the identification information stored in the magnetic disk), and if the comparison is inconsistent, a self-destruction program is started, namely the first control unit controls the valve part to be opened so that the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disk; if the comparison is consistent, executing a third step, namely the detection unit detects the state of the external self-destruction port to acquire self-destruction control information, the first control unit sends the self-destruction control information from the detection unit to the second control unit, the second control unit analyzes the self-destruction control information, when the analysis result is that the state of the hard disk or the computer provided with the hard disk is abnormal, starting a self-destruction program, if the analysis result is that the state of the hard disk or the computer provided with the hard disk is normal, executing a fourth step, namely the detection unit acquires the shell state information of the hard disk, if the shell state information represents that the shell of the hard disk is opened abnormally (for example, the shell is violently disassembled), starting the self-destruction program, otherwise, opening a channel for data exchange between the hard disk and external communication equipment, enabling the hard disk to work normally, and continuously circulating the above steps, the embodiment of the present invention does not specifically limit this to ensure the security of data in the disk until the hard disk is destroyed.

In addition, referring to fig. 12, an embodiment of the present invention further provides a hard disk 200, where the hard disk 200 includes a memory 202, a processor 201, and a computer program stored in the memory 202 and executable on the processor 201.

The processor 201 and memory 202 may be connected by a bus or other means.

The memory 202, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer-executable programs. Further, the memory 202 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 202 may optionally include memory located remotely from the processor 201, and such remote memory may be coupled to the processor 201 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

It should be noted that the hard disk 200 in this embodiment may be, for example, the hard disk in the embodiment shown in fig. 1, and these embodiments all belong to the same inventive concept, so these embodiments have the same implementation principle and technical effect, and are not described in detail here.

The non-transitory software programs and instructions required to implement the hard disk self-destruction method of the above-described embodiment are stored in the memory 202, and when executed by the processor 201, perform the hard disk self-destruction method of the above-described embodiment, for example, perform the above-described method steps S110 to S120 in fig. 7, method step S210 in fig. 8, method steps S310 to S320 in fig. 9, and method steps S410 to S420 in fig. 10.

The above described embodiments of the device are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, which are executed by a processor or a controller, for example, by a processor in the above-mentioned device embodiment, and enable the processor to execute the hard disk self-destruction method in the above-mentioned embodiment, and execute the above-mentioned method steps S110 to S120 in fig. 7, the method step S210 in fig. 8, the method steps S310 to S320 in fig. 9, and the method steps S410 to S420 in fig. 10.

Furthermore, an embodiment of the present invention further provides a computer program product, which includes a computer program or a computer instruction, where the computer program or the computer instruction is stored in a computer-readable storage medium, a processor of a computer device reads the computer program or the computer instruction from the computer-readable storage medium, and the processor executes the computer program or the computer instruction, so that the computer device executes the hard disk self-destruction method in the foregoing embodiment, for example, the method steps S110 to S120 in fig. 7, the method step S210 in fig. 8, the method steps S310 to S320 in fig. 9, and the method steps S410 to S420 in fig. 10 described above are performed.

One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims (10)

1. A hard disk, comprising:

a magnetic disk;

the detection unit is used for acquiring the state information of the hard disk;

the self-destruction mechanism comprises a valve part, a reagent bottle and a driving part which are connected in sequence, wherein the reagent bottle is used for containing a self-destruction reagent;

the first control unit is respectively connected with the detection unit and the valve component;

the first control unit is used for receiving the state information from the detection unit and controlling the valve component to be opened according to the state information, so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

2. The hard disk of claim 1, further comprising an external communication port for connecting an external communication device, wherein the external communication port is communicatively connected to the detection unit;

the detection unit is specifically configured to:

acquiring the identity identification information of the external communication equipment;

the first control unit is specifically configured to:

and controlling the valve part to be opened according to the identification information so that the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

3. The hard disk of claim 1, further comprising an external self-destruction port, wherein the external self-destruction port is in communication connection with the detection unit, and the first control unit is in communication connection with a second control unit;

the detection unit is specifically configured to:

acquiring self-destruction control information of the external self-destruction port;

the first control unit is specifically configured to:

and sending the self-destruction control information to the second control unit so that the second control unit controls the valve part to be opened according to the self-destruction control information, and the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

4. The hard disk of claim 1, further comprising a power interface and a data interface, wherein the power interface and the data interface are both in communication connection with the detection unit;

the detection unit is specifically configured to:

acquiring first connection state information of the power interface and second connection state information of the data interface;

the first control unit is specifically configured to:

and respectively controlling the data access authority of the disk according to the first connection state information and the second connection state information.

5. The hard disk of claim 1, wherein the self-destruct mechanism comprises a nozzle connected to the valve member, the valve member disposed between the nozzle and the reagent bottle.

6. The hard disk of claim 1, wherein the detection unit comprises an inductive component;

the sensing component is specifically configured to:

acquiring shell state information of the hard disk;

the first control unit is specifically configured to:

and controlling the valve component to be opened according to the shell state information so that the driving component pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

7. A hard disk self-destruction method is characterized in that the method is applied to a hard disk, the hard disk comprises a magnetic disk, a shell, a detection unit, a self-destruction mechanism and a first control unit, the self-destruction mechanism comprises a nozzle, a valve part, a reagent bottle and a driving part which are sequentially connected, the reagent bottle is used for containing a self-destruction reagent, and the first control unit is respectively connected with the detection unit and the valve part;

the hard disk self-destruction method comprises the following steps:

receiving status information from the detection unit;

and controlling the valve component to be opened according to the state information so as to enable the driving component to push the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

8. The hard disk self-destruction method according to claim 7, wherein the hard disk further comprises an external communication port, the external communication port is used for connecting an external communication device, and the external communication port is in communication connection with the detection unit;

the receiving the state information from the detection unit includes:

and receiving the identification information of the external communication equipment through the detection unit.

9. The hard disk self-destruction method according to claim 7, wherein the hard disk further comprises an external self-destruction port, the external self-destruction port is in communication connection with the detection unit, and the first control unit is in communication connection with the second control unit;

the hard disk self-destruction method further comprises the following steps:

receiving self-destruction control information of the external self-destruction port through the detection unit;

and sending the self-destruction control information to a second control unit so that the second control unit controls the valve part to be opened according to the self-destruction control information, and the driving part pushes the reagent bottle to discharge the self-destruction reagent to the magnetic disc.

10. The hard disk self-destruction method according to claim 7, wherein the hard disk further comprises a power interface and a data interface, and the power interface and the data interface are both in communication connection with the first control unit;

the hard disk self-destruction method further comprises the following steps:

receiving first connection state information of the power interface and second connection state information of the data interface through the detection unit;

and respectively controlling the data access authority of the disk according to the first connection state information and the second connection state information.

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