阅读说明：本技术 一种基于人脸识别的防盗计算机及其使用方法 (Anti-theft computer based on face recognition and use method thereof ) 是由 刘飞 于 2021-05-07 设计创作，主要内容包括：本发明公开了一种基于人脸识别的防盗计算机及其使用方法,属于人脸识别领域,它在人脸识别的基础上通过将USB插口设置成可变形式来防止计算机被破解盗窃,为计算机增设一道安全防线,它利用同性磁铁相互排斥的原理使防插挡片向外凸出与USB插口的底部相抵,从而防止盗窃人员通过插入U盘来破解密码窃取重要文件,有效提高了计算机的安全性,而在通过解锁笔记本电脑的密码后电磁铁向外吸引第一磁性球使其移动,从而使得第二磁性球能够向上移动,这样在插入USB插头时防插挡片缩进去以让USB插口能够正常使用,与现有技术相比,它可以通过USB插口的变形来保护计算机被恶意破解密码并窃走重要文件,有效提高了计算机重要信息的安全级别。(The invention discloses a theft-proof computer based on face recognition and a using method thereof, belonging to the field of face recognition, wherein a USB socket is set into a deformable mode on the basis of face recognition to prevent the computer from being cracked and stolen, a safety line is additionally arranged for the computer, the anti-insertion blocking sheet is enabled to protrude outwards to be abutted against the bottom of the USB socket by utilizing the principle that like magnets repel each other, so as to prevent a thief from cracking a password and stealing important files by inserting a U disk, the safety of the computer is effectively improved, an electromagnet attracts a first magnetic ball outwards to move after unlocking the password of a notebook computer, so that a second magnetic ball can move upwards, the anti-insertion blocking sheet retracts when inserting a USB plug to enable the USB socket to be normally used, compared with the prior art, the anti-theft computer can be protected from being maliciously cracked and stealing the important files by the deformation of the USB socket, the security level of the important information of the computer is effectively improved.)

1. The utility model provides a theftproof computer based on face identification, includes notebook computer (1), be provided with USB socket (101) on notebook computer (1), and USB socket (101) include locating plate (102), the upper surface of locating plate (102) is inlayed and is had the contact, its characterized in that: the notebook computer (1) is embedded with electromagnets (2) in the inner walls of two sides of the positioning plate (102), a movable cavity (3) is formed in the middle of the upper end of the positioning plate (102), a plurality of fixing plates (4) arranged at equal intervals are fixedly connected to the inner wall of the movable cavity (3), a traction rope (5) is fixedly connected to the side wall of each fixing plate (4), a first magnetic ball (6) is fixedly connected to one end, away from the fixing plate (4), of the traction rope (5), a sliding cavity (7) communicated with the movable cavity (3) is formed in the inner wall of the lower end, close to each fixing plate (4), of the positioning plate (102), an opening cavity (8) communicated with the sliding cavity (7) is formed in the lower end of the positioning plate (102), an anti-insertion blocking piece (9) is fixedly connected to the opening of the opening cavity (8), and a second magnetic ball (10) is slidably connected to the sliding cavity (7), and a connecting rod (11) is fixedly connected between the lower end of the second magnetic ball (10) and the anti-insertion blocking piece (9).

2. The anti-theft computer based on face recognition according to claim 1, characterized in that: the operating system of the notebook computer (1) comprises a login module, a face recognition module and an interface setting module, wherein the login module is simultaneously electrically connected with the face recognition module and the interface setting module, and the face recognition module and the interface setting module are simultaneously electrically connected with the electromagnet (2).

3. The anti-theft computer based on face recognition according to claim 1, characterized in that: the fixed plate (4) is made of magnetic conductive materials, and a plurality of magnetic leakage holes are formed in the fixed plate (4).

4. The anti-theft computer based on face recognition according to claim 1, characterized in that: the inner wall of the upper end of the moving cavity (3) is provided with a plurality of positioning grooves (301) matched with the first magnetic balls (6), and the inner diameter of the moving cavity (3) is larger than the diameter of the first magnetic balls (6).

5. The anti-theft computer based on face recognition according to claim 1, characterized in that: the hauling rope (5) is made of soft elastic materials.

6. The anti-theft computer based on face recognition according to claim 1, characterized in that: the communicating part of the sliding cavity (7) and the moving cavity (3) is fixedly connected with a hollow-out net structure (701), and the hollow-out net structure (701) is adopted.

7. The anti-theft computer based on face recognition according to claim 1, characterized in that: the anti-insertion blocking piece (9) is made of a friction-resistant high-elasticity material, and the anti-insertion blocking piece (9) is bent towards the outside of the open cavity (8) in a natural state.

8. The anti-theft computer based on face recognition according to claim 1, characterized in that: the magnetism of the ends, close to each other, of the first magnetic ball (6) and the second magnetic ball (10) is the same, and the diameters of the first magnetic ball (6) and the second magnetic ball (10) are equal.

9. The anti-theft computer based on face recognition according to claim 1, characterized in that: the inner walls of the two ends of the moving cavity (3) close to the electromagnet (2) are respectively embedded with a magnetic conduction block (12).

10. The use method of the anti-theft computer based on the face recognition according to any one of the claims 1 to 9, characterized in that: the method comprises the following operations:

s1, when the notebook computer (1) is started to operate, the login module starts the face recognition module to recognize a face to unlock the notebook computer (1), after unlocking, the electromagnet (2) starts to work, the electromagnet (2) attracts the first magnetic ball (6) to move, at the moment, the first magnetic ball (6) and the second magnetic ball (10) are staggered, the second magnetic ball (10) loses the limitation, when a USB plug is inserted, the anti-insertion blocking piece (9) can be squeezed into the open cavity (8), so that the USB socket (101) can be normally used, and a user can download or upload files;

s2, when the notebook computer (1) is in a shutdown state, a circuit in the notebook computer (1) is closed, the electromagnet (2) does not attract the first magnetic ball (6), the first magnetic ball (6) restores to the original position under the action of the restoring elasticity of the traction rope (5), at the moment, the upper end of the first magnetic ball (6) is positioned in the positioning groove (301) and is positioned right above the second magnetic ball (10), the repulsive force of the first magnetic ball (6) to the second magnetic ball (10) and the restoring elasticity of the anti-insertion blocking piece (9) enable the second magnetic ball (10) to move downwards, at the moment, the anti-insertion blocking piece (9) is in contact with the lower surface of the USB socket (101), so that the USB plug can be blocked from being inserted into the USB socket (101), and a thief can be prevented from inserting a U disk to crack the notebook computer (1);

s3, in the working state of the notebook computer (1), the user can enter the interface setting module through the login module for further security to close the electromagnet (2) so as to make the USB socket (101) in the closed state, and then open the USB socket when the user needs to use the USB socket, so as to prevent the user from being stolen important files when the user leaves the USB socket temporarily.

Technical Field

The invention relates to the field of face recognition, in particular to an anti-theft computer based on face recognition and a using method thereof.

Background

Face recognition is a biometric technology for identity recognition based on facial feature information of a person. A series of related technologies, also commonly called face recognition and face recognition, are used to collect images or video streams containing faces by using a camera or a video camera, automatically detect and track the faces in the images, and then perform face recognition on the detected faces. The face recognition product is widely applied to the fields of finance, judicial sciences, military, public security, frontier inspection, government, aerospace, electric power, factories, education, medical treatment, numerous enterprises and public institutions and the like. With further maturity of the technology and improvement of social acceptance, the face recognition technology is applied to more fields.

The human face recognition technology is widely applied to daily life, such as mobile phones, picture comparison and security check, and along with the development of the technological level and the increase of the requirements of people, some electronic products with higher security level are additionally provided with the human face recognition technology, such as portable notebook computers, and the human face recognition technology is characterized in that a machine body is small and exquisite. Is more portable than a desktop computer, and is a personal computer which is small and convenient to carry. The current notebook computers are differentiating different trends according to the purposes, and the online books tend to be used in daily office and movies; the commercial book tends to be stable, low in power consumption and longer in endurance time; the household notebook has good performance and high cost performance, and the game book is specially used for catering to the outgoing game of a small number of people; fever level configuration, the entertainment experience effect is good.

The notebook is provided with a USB interface, and is mainly used for uploading or downloading files, when the system of the notebook fails, a USB flash disk can be inserted through the USB interface for system repair or reinstallation, and certainly, a USB flash disk provided with cracking software can be inserted for password cracking.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide an anti-theft computer based on face recognition and a using method thereof, wherein a USB socket is set into a deformable mode on the basis of face recognition to prevent the computer from being cracked and stolen, a safety line is additionally arranged for the computer, an anti-insertion blocking sheet is enabled to protrude outwards to abut against the bottom of the USB socket by utilizing the principle that like magnets repel each other, so that a thief is prevented from cracking a password and stealing important files by inserting a U disk, the safety of the computer is effectively improved, an electromagnet attracts a first magnetic ball outwards after the password of a notebook computer is unlocked, the first magnetic ball and a second magnetic ball are staggered, the second magnetic ball can move upwards, and the anti-insertion blocking sheet retracts to enable the USB socket to be normally used when a USB plug is inserted, compared with the prior art, the method can protect the computer from being maliciously cracked and stealing important files through the deformation of the USB socket, and effectively improves the security level of important information of the computer.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

An anti-theft computer based on face recognition comprises a notebook computer, wherein a USB socket is arranged on the notebook computer and comprises a positioning plate, contacts are inlaid on the upper surface of the positioning plate, electromagnets are inlaid in the inner walls of the notebook computer, which are positioned on two sides of the positioning plate, a moving cavity is formed in the middle of the upper end of the positioning plate, a plurality of fixing plates which are arranged at equal intervals are fixedly connected to the inner walls of the moving cavity, a traction rope is fixedly connected to the side wall of each fixing plate, a first magnetic ball is fixedly connected to one end, away from the fixing plate, of each traction rope, a sliding cavity communicated with the moving cavity is formed in the inner wall, close to the lower end of each fixing plate, of the positioning plate, an opening cavity communicated with the sliding cavity is formed in the lower end of the positioning plate, an anti-insertion blocking piece is fixedly connected to the opening of the opening cavity, and a second magnetic ball is slidably connected in the sliding cavity, and a connecting rod is fixedly connected between the lower end of the second magnetic ball and the anti-insertion blocking piece. It utilizes the principle that like nature magnet repels each other to make the separation blade of preventing inserting outwards protrusion offset with the bottom of USB socket, thereby prevent that the thief from breaking the password through inserting the USB flash disk and stealing important file, the security of computer has effectively been improved, and the electro-magnet outwards attracts first magnetic ball behind the password through unblock notebook computer, make first magnetic ball and second magnetic ball take place the dislocation, thereby make second magnetic ball can the rebound, prevent like this that the separation blade of inserting contracts into so that USB socket can normal use when inserting the USB plug, compare with prior art, it can protect the computer to be maliciously broken the password and steal important file through the deformation of USB socket, the security level of the important information of computer has effectively been improved.

Furthermore, the operating system of the notebook computer comprises a login module, a face recognition module and an interface setting module, wherein the login module is electrically connected with the face recognition module and the interface setting module, the face recognition module and the interface setting module are electrically connected with the electromagnet, the module is matched with a USB (universal serial bus) socket for use, and the USB socket can be conveniently opened or closed through the interface setting module.

Furthermore, the fixed plate is made of a magnetic conductive material, a plurality of magnetic leakage holes are formed in the fixed plate, and the first magnetic ball in the middle is far away from the electromagnets on the two sides, so that the fixed plate has a magnetic conductive effect in order to ensure that the electromagnets have enough attraction to the first magnetic ball in the middle.

Furthermore, a plurality of positioning grooves matched with the first magnetic balls are formed in the inner wall of the upper end of the moving cavity, the inner diameter of the moving cavity is larger than the diameter of the first magnetic balls, and in order to prevent the first magnetic balls from moving due to mutual repulsive force between the first magnetic balls and the second magnetic balls, the first magnetic balls are positioned through the positioning grooves.

Furthermore, the haulage rope is made of soft elastic materials, and after the attraction of the electromagnet on the first magnetic ball disappears, the elasticity of the haulage rope enables the first magnetic ball to reset, so that the second magnetic ball moves downwards.

Furthermore, the connection part of the sliding cavity and the moving cavity is fixedly connected with a hollow net structure, so that the second magnetic ball is prevented from entering the moving cavity due to the fact that the distance of the second magnetic ball moving upwards is too large, and the repulsive force between the first magnetic ball and the second magnetic ball is not influenced.

Furthermore, the anti-insertion blocking piece is made of a friction-resistant high-elasticity material, is bent towards the outside of the open cavity in a natural state, protrudes outwards to block any USB plug from being inserted when the anti-insertion blocking piece is in the natural state, so that the USB socket is in a closed state, and after the electromagnet moves the first magnetic ball, the USB is inserted to enable the anti-insertion blocking piece to be recessed into the open cavity, so that the USB socket is in an open state.

Furthermore, the magnetism of the ends of the first magnetic ball and the second magnetic ball, which are close to each other, is the same, and the diameters of the first magnetic ball and the second magnetic ball are the same, so that the forces received between the first magnetic ball and the second magnetic ball are the same.

Furthermore, the inner walls of the two ends of the moving cavity, which are close to the electromagnet, are respectively embedded with a magnetic conduction block, so that the magnetic force generated by the electromagnet can be better transmitted to the inside of the moving cavity.

A method for using a face recognition-based anti-theft computer comprises the following operations:

s1, when the notebook computer is started to operate, the login module starts the face recognition module to recognize a face to unlock the notebook computer, the electromagnet starts to work after unlocking, the electromagnet attracts the first magnetic ball to move, at the moment, the first magnetic ball and the second magnetic ball are staggered, the second magnetic ball loses the limitation, when the USB plug is inserted, the anti-insertion blocking piece can be squeezed into the open cavity, so that the USB socket can be normally used, and a user can download or upload files;

s2, when the notebook computer is in a shutdown state, a circuit in the notebook computer is closed, the electromagnet does not attract the first magnetic ball any more, the first magnetic ball is restored to the original position under the action of the restoring elasticity of the traction rope, at the moment, the upper end of the first magnetic ball is positioned in the positioning groove and is positioned right above the second magnetic ball, the second magnetic ball moves downwards due to the repulsive force of the first magnetic ball to the second magnetic ball and the restoring elasticity of the anti-plugging blocking piece, at the moment, the anti-plugging blocking piece is contacted with the lower surface of the USB socket, so that the USB plug can be blocked from being plugged into the USB socket, and a thief is prevented from plugging a U disk to crack the notebook computer;

s3, in the working state of the notebook computer, the user can enter the interface setting module through the login module for further security to close the electromagnet, so that the USB socket is in the closed state, and then the USB socket is opened when the user needs to use, so that the user can not steal important files when the user leaves temporarily.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme prevents the computer from being cracked and stolen by setting the USB socket into a deformable mode on the basis of face recognition, adds a safety defense line for the computer, makes the anti-plugging blocking sheet protrude outwards to abut against the bottom of the USB socket by utilizing the principle that like magnets repel each other, thereby preventing the thief from cracking the password and stealing important files by inserting the USB flash disk, effectively improving the safety of the computer, after the password of the notebook computer is unlocked, the electromagnet attracts the first magnetic ball outwards so that the first magnetic ball and the second magnetic ball are staggered, thereby enabling the second magnetic ball to move upwards, so that the anti-insertion blocking sheet retracts into the USB plug when the USB plug is inserted, the USB socket can be normally used, compared with the prior art, the method can protect the computer from being maliciously cracked and stealing important files through the deformation of the USB socket, and effectively improves the security level of important information of the computer.

(2) The operating system of the notebook computer comprises a login module, a face recognition module and an interface setting module, wherein the login module is simultaneously electrically connected with the face recognition module and the interface setting module, the face recognition module and the interface setting module are simultaneously electrically connected with an electromagnet, the module is matched with a USB (universal serial bus) socket for use, and the USB socket can be conveniently opened or closed through the interface setting module.

(3) The fixed plate is made of magnetic conductive materials, a plurality of magnetic leakage holes are formed in the fixed plate, and the first magnetic ball in the middle is far away from the electromagnets on the two sides, so that the fixed plate has a magnetic conductive effect in order to ensure that the electromagnets have enough attraction to the first magnetic ball in the middle.

(4) The inner wall of the upper end of the moving cavity is provided with a plurality of positioning grooves matched with the first magnetic balls, the inner diameter of the moving cavity is larger than the diameter of the first magnetic balls, and the first magnetic balls are prevented from moving due to mutual repulsive force between the first magnetic balls and the second magnetic balls, so that the first magnetic balls are positioned through the positioning grooves.

(5) The haulage rope is made for soft elastic material, and after the electro-magnet disappears to first magnetic ball attraction, the elasticity of haulage rope makes first magnetic ball can reset to let the second magnetic ball move down.

(6) The sliding cavity is fixedly connected with the communicating part of the moving cavity and is of a hollow net structure, so that the second magnetic ball is prevented from entering the moving cavity due to the fact that the distance of the second magnetic ball moving upwards is too large, and meanwhile the repulsive force between the first magnetic ball and the second magnetic ball is not influenced.

(7) The anti-insertion separation blade is made of a friction-resistant high-elasticity material, the anti-insertion separation blade is bent towards the outside of the open cavity in a natural state, and when the anti-insertion separation blade is in the natural state, the anti-insertion separation blade protrudes outwards to block any USB plug from being inserted, so that the USB socket is in a closed state, and after the electromagnet enables the first magnetic ball to move, the USB is inserted to enable the anti-insertion separation blade to be recessed into the open cavity, so that the USB socket is in an open state.

(8) The magnetic property of the end of the first magnetic ball close to the end of the second magnetic ball is the same, and the diameters of the first magnetic ball and the second magnetic ball are the same, so that the forces received between the first magnetic ball and the second magnetic ball are the same.

(9) The inner walls of the two ends of the moving cavity, which are close to the electromagnet, are respectively embedded with a magnetic conduction block, so that the magnetic force generated by the electromagnet can be better transmitted to the inside of the moving cavity.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic diagram of the structure at A in FIG. 2;

FIG. 4 is a schematic diagram of a USB socket of the present invention in a closed state;

FIG. 5 is a schematic diagram of the USB socket of the present invention in an open state;

FIG. 6 is a schematic view of the structure at B in FIG. 5;

FIG. 7 is a schematic diagram of the module and device connections of the present invention.

The reference numbers in the figures illustrate:

1 notebook computer, 101USB socket, 102 locating plate, 2 electro-magnet, 3 removal chambeies, 301 positioning groove, 4 fixed plates, 5 haulage ropes, 6 first magnetic balls, 7 slip chamber, 8 opening chambeies, 9 prevent inserting the separation blade, 10 second magnetic balls, 11 connecting rods, 12 magnetic conduction pieces.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-7, an anti-theft computer based on face recognition includes a notebook computer 1, and referring to fig. 1-3, the notebook computer 1 is provided with a USB socket 101, the USB socket 101 includes a positioning plate 102, contacts are embedded on the upper surface of the positioning plate 102, electromagnets 2 are embedded in the inner walls of the notebook computer 1 on both sides of the positioning plate 102 (the specific structure and the working principle thereof are well known technologies known to those skilled in the art, and the specific model can be selected according to actual needs and will not be described in detail herein), magnetic conductive blocks 12 are embedded in the inner walls of the two ends of the moving cavity 3 close to the electromagnets 2, so that the magnetic force generated by the electromagnets 2 can be better transmitted to the inside of the moving cavity 3, a moving cavity 3 is formed in the middle of the upper end of the positioning plate 102, and a plurality of fixing plates 4 arranged at equal intervals are fixedly connected to the inner walls of the moving cavity 3;

referring to fig. 6, the fixing plate 4 is made of a magnetic conductive material, and the fixing plate 4 is provided with a plurality of magnetic leakage holes, because the first magnetic ball 6 at the middle is far away from the electromagnets 2 at the two sides, so that the fixing plate 4 has a magnetic conductive function to ensure that the electromagnets 2 have enough attraction to the first magnetic ball 6 at the middle, the side wall of the fixing plate 4 is fixedly connected with the traction rope 5, the traction rope 5 is made of a soft elastic material, after the attraction of the electromagnets 2 to the first magnetic ball 6 disappears, the elastic force of the traction rope 5 enables the first magnetic ball 6 to reset, so that the second magnetic ball 10 moves downward, and one end of the traction rope 5 far away from the fixing plate 4 is fixedly connected with the first magnetic ball 6, the inner wall of the upper end of the moving cavity 3 is provided with a plurality of positioning grooves 301 matched with the first magnetic ball 6, and the inner diameter of the moving cavity 3 is larger than the diameter of the first magnetic ball 6, so as to prevent the mutual repulsion force between the first magnetic ball 6 and the second Therefore, the first magnetic balls 6 are positioned through the positioning grooves 301, the inner wall of the positioning plate 102, which is close to the lower end of each fixing plate 4, is provided with a sliding cavity 7 communicated with the moving cavity 3, the communication part of the sliding cavity 7 and the moving cavity 3 is fixedly connected with a positioning plate 701, the positioning plate 701 is of a hollow-out net structure, the positioning plate 701 is used for preventing the second magnetic balls 10 from entering the moving cavity 3 due to the fact that the distance of the upward movement of the second magnetic balls 10 is too large, and meanwhile, the positioning plate 701 does not influence the repulsive force between the first magnetic balls 6 and the second magnetic balls 10;

referring to fig. 4-5, an open cavity 8 communicated with the sliding cavity 7 is formed at the lower end of the positioning plate 102, an anti-insertion blocking piece 9 is fixedly connected to the open of the open cavity 8, the anti-insertion blocking piece 9 is made of a friction-resistant high-elasticity material, and the anti-insertion blocking piece 9 is bent toward the outside of the open cavity 8 in a natural state, and when the anti-insertion blocking piece 9 is in the natural state, it protrudes outward to block any USB plug from being inserted, so that the USB socket 101 is in a closed state, and when the electromagnet 2 moves the first magnetic ball 6, the USB is inserted to recess the anti-insertion blocking piece 9 into the open cavity 8, so that the USB socket 101 is in an open state, the sliding cavity 7 is slidably connected with the second magnetic ball 10, one end of the first magnetic ball 6 and the second magnetic ball 10 close to each other has the same magnetism, and the diameters of the first magnetic ball 6 and the second magnetic ball 10 are equal, so that the forces received by the two are equal, a connecting rod 11 is fixedly connected between the lower end of the second magnetic ball 10 and the anti-insertion blocking piece 9, and the mutual repulsive force between the first magnetic ball 6 and the second magnetic ball 10 enables the second magnetic ball 10 to move downwards, so that the anti-insertion blocking piece 9 protrudes outwards to close the area between the positioning plate 102 and the lower part of the USB socket 101, and thus the insertion of any USB plug is blocked;

referring to fig. 7, the operating system of the notebook computer 1 includes a login module, a face recognition module and an interface setting module, the login module is electrically connected to the face recognition module and the interface setting module at the same time, the face recognition module and the interface setting module are electrically connected to the electromagnet 2 at the same time, the module is used in cooperation with the USB socket 101, and the USB socket 101 can be conveniently opened or closed through the interface setting module (the module of the apparatus can be developed and tested by professionals, and is a technology well known by those skilled in the art, and the specific algorithm thereof is not described in detail here).

The application method of the scheme comprises the following operations:

s1, when the notebook computer 1 is started to operate, the login module starts the face recognition module to recognize a face to unlock the notebook computer 1, the electromagnet 2 starts to work after unlocking, the electromagnet 2 attracts the first magnetic ball 6 to move, at the moment, the first magnetic ball 6 and the second magnetic ball 10 are staggered, the second magnetic ball 10 loses the limitation, when a USB plug is inserted, the anti-insertion blocking piece 9 can be squeezed into the open cavity 8, so that the USB socket 101 can be normally used, and a user can download or upload files;

s2, when the notebook computer 1 is in a shutdown state, a circuit in the notebook computer 1 is closed, the electromagnet 2 does not attract the first magnetic ball 6 any more, the first magnetic ball 6 recovers to the original position under the action of the restoring elasticity of the traction rope 5, at the moment, the upper end of the first magnetic ball 6 is positioned in the positioning groove 301 and is positioned right above the second magnetic ball 10, the second magnetic ball 10 moves downwards due to the repulsive force of the first magnetic ball 6 to the second magnetic ball 10 and the restoring elasticity of the anti-plugging blocking piece 9, and the anti-plugging blocking piece 9 is contacted with the lower surface of the USB socket 101, so that a USB plug can be blocked from being plugged into the USB socket 101, and a thief is prevented from inserting a U disk to crack the notebook computer 1;

s3, when the notebook computer 1 is in operation, the user can enter the interface setting module through the login module to turn off the electromagnet 2 for further security, so that the USB socket 101 is in a closed state, and then opened when the user needs to use the device, so as to prevent the user from being stolen important documents when the user temporarily leaves the device.

The computer is prevented from being cracked and stolen by setting the USB socket into a deformable mode on the basis of face recognition, a safety line is additionally arranged for the computer, the anti-insertion blocking sheet 9 protrudes outwards to abut against the bottom of the USB socket 101 by utilizing the principle that magnets with the same polarity repel each other, so that a thief is prevented from cracking and stealing important files by inserting a U disk, the safety of the computer is effectively improved, the electromagnet 2 attracts the first magnetic ball 6 outwards after unlocking the password of the notebook computer 1, the first magnetic ball 6 and the second magnetic ball 10 are staggered, the second magnetic ball 10 can move upwards, the anti-insertion blocking sheet 9 retracts to enable the USB socket 101 to be normally used when a USB plug is inserted, compared with the prior art, the computer can be protected from being maliciously cracked and stealing the important files by deforming the USB socket 101, the security level of the important information of the computer is effectively improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.