Self-destruction control circuit and method of novel large-capacity memory disk

Abstract

The invention provides a novel self-destruction control circuit and method for a large-capacity memory disk. The novel self-destruction control circuit comprises a communication network port 1, a memory master control circuit 2, a memory disk 3, an I2C interface control switching circuit 4, a memory disk self-destruction power supply control circuit 5 and a hard disk memory chip power supply circuit 6, the communication network port 1 is connected with the storage master control circuit 2; the storage master control circuit 2 is respectively connected with the storage disk 3 and the I2C interface control switching circuit 4; the I2C interface control switching circuit 4 is connected with the memory disk self-destruction power supply control circuit 5; and the hard disk storage chip power supply circuit 6 is respectively connected with the storage disk self-destruction power supply control circuit 5 and the storage disk 3.

Description

Technical Field

[0001] The present invention relates to the technical field of control circuits, and in particular to a self-destruction control circuit and method for a novel large-capacity storage disk. Background Art

[0002] In recent years, with the rapid development of information technology and the widespread application of big data, data storage security and reliability issues have become increasingly prominent. Especially in the storage and processing of sensitive data, the risks of data misuse, leakage, and loss have increased significantly. Deleting data through software commands often fails to guarantee completeness and poses a potential risk of data recovery. Therefore, a new self-destruct control circuit for large-capacity storage disks is urgently needed.

[0003] Patent document CN113297635A (Application Number: 202110593407.X) discloses an energy storage boost self-destruct circuit, control method, and SSD for solid-state drives (SSDs). This relates to the field of SSD technology and addresses the safety and reliability issues currently associated with SSD self-destruction and its power supply in both working and self-destruct modes. The self-destruct circuit specifically includes a self-destruct communication circuit, a self-destruct control circuit, and a self-destruct high-voltage execution circuit. The self-destruct high-voltage execution circuit is connected to the self-destruct control circuit and the SSD power supply circuit, respectively. The self-destruct high-voltage execution circuit has an output connected to the SSD's working power supply and an input control terminal connected to the input of the self-destruct control circuit, for boosting the SSD's power supply to power the SSD's memory chips. The self-destruct communication circuit has an output connected to the input of the self-destruct control circuit for controlling the output of the self-destruct control circuit, and an input connected to a storage master control circuit. The storage master control circuit configures or activates the self-destruct control circuit, thereby controlling whether the SSD's storage power supply is supplied at normal operating voltage or high voltage, thereby determining whether to self-destruct the SSD's memory chips. Summary of the Invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide a novel self-destruction control circuit and method for a large-capacity storage disk.

[0005] According to the present invention, a novel self-destruct control circuit for a large-capacity storage disk is provided, comprising: a communication network port 1, a storage main control circuit 2, a large-capacity storage disk 3, an I2C interface control switching circuit 4, a storage disk self-destruct power supply control circuit 5, and a hard disk storage chip power supply circuit 6;

[0006] The communication network port 1 is connected to the storage main control circuit 2;

[0007] The storage main control circuit 2 is connected to the large-capacity storage disk 3 and the I2C interface control switching circuit 4 respectively;

[0008] The I2C interface control switching circuit 4 is connected to the storage disk self-destruct power supply control circuit 5;

[0009] The hard disk storage chip power supply circuit 6 is connected to the storage disk self-destruct power supply control circuit 5 and the large-capacity storage disk 3 respectively.

[0010] Preferably, the storage main control circuit 2, the I2C interface control switching circuit 4 and the storage disk self-destruct power supply control circuit 5 are connected via I2C communication.

[0011] Preferably, the storage main control circuit 2 includes: CPU, SDRAM, FLASH and network interface circuit, storage data interface circuit and I2C interface circuit;

[0012] The CPU is connected to the SDRAM, the FLASH and the network interface circuit, the storage data interface circuit and the I2C interface circuit respectively;

[0013] The network interface circuit is used to connect to the communication network port 1;

[0014] The storage data interface circuit is used to connect to the large-capacity storage disk 3;

[0015] The I2C interface circuit is used to connect to the I2C interface control switching circuit 4;

[0016] The SDRAM and the FLASH are used to receive the self-destruction command transmitted by the communication network port 1; and at the same time, are used to store all the read data;

[0017] The CPU is used to control the operation of the I2C interface control switching circuit 4 and the storage disk self-destruct power supply control circuit 5 .

[0018] Preferably, the large-capacity storage disk 3 includes: a storage disk, a data interface circuit, and a self-destruct control power interface;

[0019] The storage disk is connected to the storage main control circuit 2 via the data interface circuit;

[0020] The large-capacity storage disk 3 is connected to the hard disk storage chip power supply circuit 6 via the self-destruct control power supply interface;

[0021] Preferably, the I2C interface control switching circuit 4 includes: an I2C analog switch and a switching control circuit;

[0022] The I2C analog switch is controlled by the switching control circuit to control the connection between the storage main control circuit 2 and the self-destruct control circuit 5 .

[0023] Preferably, the storage disk self-destruct power supply control circuit 5 includes: an I2C interrupt control circuit and an I2C interface circuit;

[0024] The I2C interface circuit is used to connect to the I2C interface control switching circuit 4;

[0025] The I2C interrupt control circuit is used to autonomously control the hard disk storage chip power supply circuit 6 according to the preset value of the time counting unit.

[0026] Preferably, the hard disk storage chip power supply circuit 6 includes: a hard disk power supply management module and a switching circuit;

[0027] The storage disk self-destruct power supply control circuit 5 is connected to the switching circuit; the hard disk power supply management module is connected to the large-capacity storage disk 3.

[0028] According to a novel self-destruction control method for a large-capacity storage disk provided by the present invention, the following steps are implemented using the aforementioned novel self-destruction control circuit for the large-capacity storage disk: upon receiving a self-destruction command, communication network port 1 transmits the command to storage master control circuit 2. Storage master control circuit 2 reads all data stored on large-capacity storage disk 3, transmits the data to a host computer via communication network port 1, and then triggers the self-destruction of large-capacity storage disk 3.

[0029] Preferably, triggering the self-destruction of the large-capacity storage disk 3 includes: the storage main control circuit 2 controls the switching circuit 4 to turn on the storage disk self-destruction power supply control circuit 5 through the I2C interface, rewriting the value of the register of the storage disk self-destruction power supply control circuit 5 to enable the large-capacity storage disk 3 to be powered and the high-voltage power supply to be turned on, and burning the large-capacity storage disk 3 to achieve self-destruction of the data stored in the storage chip.

[0030] Preferably, when the storage main control circuit 2 fails, the storage disk self-destruct power supply control circuit 5 loses connection with the storage main control circuit 2. The I2C interrupt control circuit within the storage disk self-destruct power supply control circuit 5 autonomously controls the operation of the hard disk storage chip power supply circuit 6 according to the preset value of its time counting unit. When the time is up, the hard disk storage chip power supply circuit 6 is automatically triggered to connect to the high-voltage power supply and the power supply of the large-capacity storage disk 3, thereby physically burning the storage chip of the large-capacity storage disk 3, thereby achieving 100% self-destruction of the data stored therein.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention solves the safety issue of self-destruct control by managing the self-destruct control circuit through I2C communication between the storage main control circuit and the self-destruct control circuit, thereby managing the power supply of the hard disk storage chip;

[0033] 2. The present invention solves the reliability problem of data self-destruction when the storage master fails by self-managing whether to self-destruct through the self-destruct control circuit;

[0034] 3. This invention minimizes the risk of false triggering and destruction of the hard disk during normal use or due to attacks by designing a new control circuit to manage the power supply of the hard disk's storage chip. The new control circuit will not be triggered during normal use, and network attacks cannot attack the interface and commands connected to the circuit, making it impossible to attack the self-destruct control circuit and cause false triggering. This also greatly improves the security of stored data from self-destruction due to illegal attacks.

[0035] 4. During normal operation of the storage system of the present invention, the I2C bus between the self-destruct control circuit and the storage master control system is physically disconnected. The I2C bus switches to the I2C interface of the self-destruct control circuit through the control output port of the storage master control system only when needed, thus avoiding the risk of being triggered by mistake or network attack. The self-destruct control circuit is controlled to self-destruct only when the system storage master control sets the self-destruction. When the storage master control fails, the self-destruct control circuit triggers the hard disk to supply high voltage to the hard disk storage chip after the self-destruct countdown preset by the storage master control is reached, causing the hard disk to self-destruct. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0037] Figure 1 This is the block diagram of the self-destruct control circuit of the new storage hard disk.

[0038] Figure 2 Output block diagram of the self-destruct control circuit.

[0039] Figure 3 Output control block diagram for powering hard disk storage chips and high-voltage power supply. DETAILED DESCRIPTION

[0040] The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those skilled in the art, several changes and improvements can be made without departing from the scope of the present invention. These all fall within the scope of protection of the present invention.

[0041] Example 1

[0042] According to the present invention, a new type of self-destruct control circuit for a large-capacity storage disk is provided. Figures 1 to 3As shown, it includes: a communication network port 1, a storage main control circuit 2, a large-capacity storage disk 3, an I2C interface control switching circuit 4, a storage disk self-destruct power supply control circuit 5, and a hard disk storage chip power supply circuit 6;

[0043] The communication network port 1 is connected to the storage main control circuit 2;

[0044] The storage main control circuit 2 is connected to the large-capacity storage disk 3 and the I2C interface control switching circuit 4 respectively;

[0045] The I2C interface control switching circuit 4 is connected to the storage disk self-destruct power supply control circuit 5;

[0046] The hard disk storage chip power supply circuit 6 is connected to the storage disk self-destruct power supply control circuit 5 and the large-capacity storage disk 3 respectively.

[0047] In this embodiment, the storage disk self-destruct power supply control circuit 5 is the core circuit of the hard disk self-destruct control circuit. It controls the hard disk self-destruct power supply circuit and achieves the purpose of completely destroying the stored data by switching the power supply of the storage chip to high voltage power supply. The storage disk self-destruct power supply control circuit 5 ensures that self-destruction is automatically triggered when data storage self-destruction is required, and the hard disk self-destruction caused by the power supply of the storage chip is not accidentally triggered during normal use or during a network attack, thereby ensuring the safety and reliability of the hard disk data self-destruction.

[0048] Specifically, the storage main control circuit 2, the I2C interface control switching circuit 4 and the storage disk self-destruct power supply control circuit 5 are connected via I2C communication.

[0049] Specifically, the storage main control circuit 2 includes: CPU, SDRAM, FLASH and network interface circuit, storage data interface circuit and I2C interface circuit;

[0050] The CPU is connected to the SDRAM, the FLASH and the network interface circuit, the storage data interface circuit and the I2C interface circuit respectively;

[0051] The network interface circuit is used to connect to the communication network port 1;

[0052] The storage data interface circuit is used to connect to the large-capacity storage disk 3;

[0053] The I2C interface circuit is used to connect to the I2C interface control switching circuit 4;

[0054] The SDRAM and the FLASH are used to receive the self-destruction command transmitted by the communication network port 1; and at the same time, are used to store all the read data;

[0055] The CPU is used to control the operation of the I2C interface control switching circuit 4 and the storage disk self-destruct power supply control circuit 5 .

[0056] Specifically, the large-capacity storage disk 3 includes: a storage disk, a data interface circuit, and a self-destruct control power interface;

[0057] The storage disk is connected to the storage main control circuit 2 via the data interface circuit;

[0058] The large-capacity storage disk 3 is connected to the hard disk storage chip power supply circuit 6 via the self-destruct control power supply interface;

[0059] Specifically, the I2C interface control switching circuit 4 includes: an I2C analog switch and a switching control circuit;

[0060] The I2C analog switch is controlled by the switching control circuit to control the connection between the storage main control circuit 2 and the self-destruct control circuit 5 .

[0061] Specifically, the storage disk self-destruct power supply control circuit 5 includes: an I2C interrupt control circuit and an I2C interface circuit;

[0062] The I2C interface circuit is used to connect to the I2C interface control switching circuit 4;

[0063] The I2C interrupt control circuit is used to autonomously control the hard disk storage chip power supply circuit 6 according to the preset value of the time counting unit.

[0064] Specifically, the hard disk storage chip power supply circuit 6 includes: a hard disk power supply management module and a switching circuit;

[0065] The storage disk self-destruct power supply control circuit 5 is connected to the switching circuit; the hard disk power supply management module is connected to the large-capacity storage disk 3.

[0066] According to the present invention, a novel self-destruction control method for a large-capacity storage disk is provided, comprising:

[0067] When the communication network port receives the system self-destruction command, the storage main control circuit reads all the data stored on the large-capacity storage disk through the data interface and transmits it to the host computer through the communication network port, and then initiates the self-destruction of the large-capacity storage disk. The startup process is as follows: the storage main control circuit controls the switching circuit through the I2C interface to connect the I2C communication of the self-destruction control circuit, and enables the power supply and high-voltage power supply of the storage disk memory chip by rewriting the register value. By burning the memory chip, the data stored in the memory chip is self-destructed; when the storage main control circuit fails, the self-destruction control circuit loses connection with the storage main circuit. When the self-destruction control circuit counts down to 0 according to the preset value of its register, the memory chip of the large-capacity storage disk is physically burned to achieve 100% self-destruction of the data stored therein.

[0068] When the I2C communication between the storage main control circuit and the self-destruct control circuit is lost, the interrupt control unit in the self-destruct control circuit autonomously controls the operation of the hard disk power supply control unit according to the preset value of its time counting unit. When the time is up, it automatically triggers the hard disk power supply control circuit to connect the high-voltage power supply and the power supply of the hard disk storage chip, thereby physically burning the storage chip of the large-capacity storage disk, achieving 100% self-destruction of the stored data.

[0069] Through the above mechanism, the self-destruction safety and reliability issues of large-capacity storage disks are solved when the main control system is working or failing.

[0070] The above describes specific embodiments of the present invention. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art may make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. The embodiments of this application and the features in the embodiments may be combined with each other in any manner unless there is a conflict.

Claims

1. A novel self-destruct control circuit for a large-capacity storage disk, characterized in that: include: Communication network port (1), storage main control circuit (2), large-capacity storage disk (3), I2C interface control switching circuit (4), storage disk self-destruct power supply control circuit (5) and hard disk storage chip power supply circuit (6); The communication network port (1) is connected to the storage main control circuit (2); The storage main control circuit (2) is connected to the large-capacity storage disk (3) and the I2C interface control switching circuit (4) respectively; The I2C interface control switching circuit (4) is connected to the storage disk self-destruct power supply control circuit (5); The hard disk storage chip power supply circuit (6) is connected to the storage disk self-destruction power supply control circuit (5) and the large-capacity storage disk (3) respectively.

2. The self-destruct control circuit for a new type of large-capacity storage disk according to claim 1, characterized in that: The storage main control circuit (2), the I2C interface control switching circuit (4) and the storage disk self-destruct power supply control circuit (5) are connected via I2C communication.

3. The self-destruct control system for a new type of large-capacity storage disk according to claim 1 is characterized in that: The storage main control circuit (2) includes: a CPU, SDRAM, FLASH, a network interface circuit, a storage data interface circuit, and an I2C interface circuit; The CPU is connected to the SDRAM, the FLASH and the network interface circuit, the storage data interface circuit and the I2C interface circuit respectively; The network interface circuit is used to connect to the communication network port (1); The storage data interface circuit is used to connect to the large-capacity storage disk (3); The I2C interface circuit is used to connect to the I2C interface control switching circuit (4); The SDRAM and the FLASH are used to receive the self-destruction instruction transmitted by the communication network port (1); and are also used to store all the read data; The CPU is used to control the operation of the I2C interface control switching circuit (4) and the storage disk self-destruct power supply control circuit (5).

4. The self-destruct control system for a new type of large-capacity storage disk according to claim 1 is characterized in that: The large-capacity storage disk (3) comprises: a storage disk, a data interface circuit, and a self-destruction control power supply interface; The storage disk is connected to the storage main control circuit (2) via the data interface circuit; The large-capacity storage disk (3) is connected to the hard disk storage chip power supply circuit (6) via the self-destruction control power supply interface.

5. The self-destruct control circuit for a new type of large-capacity storage disk according to claim 1, characterized in that: The I2C interface control switching circuit (4) comprises: an I2C analog switch and a switching control circuit; The I2C analog switch is controlled by the switching control circuit to control the connection between the storage main control circuit (2) and the self-destruction control circuit (5).

6. The self-destruct control circuit for a new type of large-capacity storage disk according to claim 1, characterized in that: The storage disk self-destruct power supply control circuit (5) comprises: an I2C interrupt control circuit and an I2C interface circuit; The I2C interface circuit is used to connect to the I2C interface control switching circuit (4); The I2C interrupt control circuit is used to autonomously control the hard disk storage chip power supply circuit (6) according to a preset value of a time counting unit.

7. The self-destruct control circuit for a new type of large-capacity storage disk according to claim 1, characterized in that: The hard disk storage chip power supply circuit (6) comprises: a hard disk power supply management module and a switching circuit; The storage disk self-destruct power supply control circuit (5) is connected to the switching circuit; and the hard disk power supply management module is connected to the large-capacity storage disk (3).

8. A novel self-destruction control method for a large-capacity storage disk, characterized in that: The self-destruction control circuit of the new large-capacity storage disk according to claims 1 to 7 is used to implement the following steps: when the communication network port (1) receives a self-destruction instruction, it is transmitted to the storage main control circuit (2); the storage main control circuit (2) reads all the data stored in the large-capacity storage disk (3), and transmits it to the host computer through the communication network port (1), and then triggers the large-capacity storage disk (3) to self-destruct.

9. The self-destruction control method for a new type of large-capacity storage disk according to claim 8, characterized in that: The method of triggering the self-destruction of the large-capacity storage disk (3) comprises: the storage main control circuit (2) controls the switching circuit (4) to connect the storage disk self-destruction power supply control circuit (5) through the I2C interface, rewriting the value of the register of the storage disk self-destruction power supply control circuit (5) to enable the large-capacity storage disk (3) to be powered and connected to the high-voltage power supply, and burning the large-capacity storage disk (3) to achieve the self-destruction of data stored in the storage chip.

10. The self-destruction control method of the new large-capacity storage disk according to claim 8, characterized in that: When the storage main control circuit (2) fails, the storage disk self-destruction power supply control circuit (5) and the storage main control circuit (2) lose connection, and the I2C interrupt control circuit in the storage disk self-destruction power supply control circuit (5) autonomously controls the hard disk storage chip power supply circuit (6) to work according to the preset value of its time counting unit. When the time is up, the hard disk storage chip power supply circuit (6) is automatically triggered to connect the high-voltage power supply and the power supply of the large-capacity storage disk (3), thereby physically burning the storage chip of the large-capacity storage disk (3), thereby achieving 100% self-destruction of the data stored therein.

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