CN114417441A - Computer information security's prevention and control device - Google Patents
Computer information security's prevention and control device Download PDFInfo
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- CN114417441A CN114417441A CN202210093423.7A CN202210093423A CN114417441A CN 114417441 A CN114417441 A CN 114417441A CN 202210093423 A CN202210093423 A CN 202210093423A CN 114417441 A CN114417441 A CN 114417441A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/88—Detecting or preventing theft or loss
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/86—Secure or tamper-resistant housings
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- Burglar Alarm Systems (AREA)
Abstract
The invention discloses a computer information security prevention and control device, which comprises a box body, wherein the top end of the box body is movably connected with a box cover. According to the invention, through the arrangement of the anti-theft mechanism, after the computer host is placed in the box body, the box cover is closed, the clamping plate on the front surface of the box cover is inserted into the groove, then the electric rod extends to push the clamping block to move and is clamped into the clamping groove on the surface of the clamping plate to complete locking, the electric rod can carry out remote control, and the purpose of improving the safety effect is achieved.
Description
Technical Field
The invention relates to the technical field of safety protection, in particular to a computer information safety prevention and control device.
Background
The computer is commonly called as computer, is a modern electronic computing machine for high-speed computation, can perform numerical computation and logic computation, and also has the function of storage and memory. The intelligent electronic device can be operated according to a program, and can automatically process mass data at a high speed. A computer that is composed of a hardware system and a software system and does not have any software installed is called a bare metal. The computer can be divided into a super computer, an industrial control computer, a network computer, a personal computer and an embedded computer, and more advanced computers comprise a biological computer, a photon computer, a quantum computer and the like.
The information security prevention and control of the computer is to perform security theft prevention on the host computer, however, the existing prevention and control devices basically fix the computer with a wall or a rack, and the theft prevention effect is not good, moreover, when the host computer of the existing prevention and control device is stolen, the existing prevention and control device is difficult to find out in the first time, so that the best recovery time is missed, the use requirement cannot be met, meanwhile, when the existing prevention and control device is installed in a computer host, the computer is easy to move because the device is slightly larger than the computer host, the computer collides with the inner wall of the prevention and control device, and the computer is damaged by movement, however, the existing prevention and control device basically has no auxiliary heat dissipation effect, and the computer is easy to cause insufficient heat dissipation in the prevention and control device, so that certain influence is caused on the work of the computer.
Disclosure of Invention
The present invention is directed to a computer information security device to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a computer information safety's prevention and control device, includes the box, the top swing joint of box has the case lid, the front of box and case lid all is provided with anti-theft mechanism, the top of box is provided with alarm mechanism, the both sides of box lower extreme all are provided with positioning mechanism, one side of box is provided with supplementary heat dissipation mechanism.
Preferably, the anti-theft mechanism includes fixed block, recess, electronic pole, fixture block, joint board and draw-in groove, fixed block and box fixed connection, the fixed block is close to the one end of box and has seted up the recess, the electric pole of inner wall fixedly connected with of fixed block, the one end fixedly connected with fixture block of fixed block inner wall is kept away from to electronic pole, fixture block and fixed block swing joint, the positive fixed connection of joint board and case lid, the draw-in groove has been seted up on the surface of joint board, the draw-in groove runs through the inner wall of joint board.
Preferably, alarm mechanism includes fixed slot, spring, movable block and trigger switch body, the top at the box is seted up to the fixed slot, the quantity of fixed slot is two, two the equal fixedly connected with spring of interior diapire of fixed slot, the top fixedly connected with movable block of spring, the inner wall swing joint of movable block and fixed slot, the top fixed mounting of movable block has the trigger switch body, the bottom looks adaptation of trigger switch body and case lid.
Preferably, the positioning mechanism includes connecting plate, rotary drum, screw rod, connecting piece, push pedal and limiting plate, the quantity of connecting plate is two, two the lower extreme of connecting plate difference fixed connection in the box both sides, the cavity has been seted up to the inner wall of connecting plate, the cavity runs through the inner wall of box, one of them the one end of connecting plate is rotated and is connected with the rotary drum, the surface of rotary drum is provided with anti-skidding line, the one end fixedly connected with screw rod and the connecting plate of rotary drum rotate to be connected, the surperficial threaded connection of screw rod has the connecting piece, the one end fixedly connected with push pedal of screw rod is kept away from to the connecting piece, the inner diapire swing joint of push pedal and box, the one end fixedly connected with limiting plate of connecting piece is kept away from to the push pedal, the inner wall swing joint of limiting plate and another connecting plate cavity.
Preferably, supplementary heat dissipation mechanism includes air intake, mount, radiator fan and vent, the air intake is seted up in one side of box, the inner wall fixedly connected with mount of air intake, the one end fixedly connected with radiator fan of air intake inner wall is kept away from to the mount, and the vent is seted up at the both ends of box.
Preferably, one end of the box body is fixedly connected with two connecting blocks, threaded holes are formed in the surfaces of the two connecting blocks, and fixing screws are connected to the inner walls of the threaded holes in a threaded mode.
Preferably, the bottom four corners of the box body are fixedly connected with backing plates, the bottom ends of the backing plates are provided with anti-skid grains, and the backing plates are made of rubber.
Preferably, the computer information security prevention and control device further includes:
the signal sending module is arranged on the box cover and used for sending a request signal to the switch control module when the prevention and control device is in a working state and the box cover in the prevention and control device is accidentally pried open;
the switch control module is used for receiving the request signal sent by the signal sending module and sending a response signal to the signal sending module;
the switch control module is also used for measuring the time taken by the alarm module to receive the request signal, the request signal and the average speed of response signal transmission to calculate the distance between the box cover and the alarm module, meanwhile, the request signal is self-correlated to obtain a self-correlation matrix, the characteristic value of the self-correlation matrix is determined, the interference of noise signals in the request signal is filtered, simultaneously inputting the request signal into a direction model, outputting a direction characteristic related to the request signal, and determines a direction vector of the request signal based on the characteristic value and the direction characteristic, and determines whether the distance is within a preset distance range, whether the direction vector deviates from a preset direction vector, if both are satisfied, the switch of the alarm module is turned on, an alarm signal is generated and sent to the alarm module;
the alarm module comprises:
the alarm signal acquisition unit is used for acquiring an alarm signal when the alarm module works;
the signal preprocessing unit is used for loading the alarm signal on a high-frequency signal to obtain a first carrier signal, performing discrete filtering processing on the first carrier signal, performing short-time Fourier transform to obtain a second carrier signal, performing gain compensation on the second carrier signal according to a gain factor, and suppressing and filtering a mixed signal to obtain a third carrier signal;
the signal preprocessing unit is further configured to determine a window function when the third carrier signal is framed according to the characteristics of the window function, perform framing based on the window function, perform wavelet transformation on the framed third carrier signal to obtain a fourth carrier signal, and perform noise reduction processing on the fourth carrier signal according to a spectral subtraction method to obtain a fifth carrier signal;
the calculating unit is used for calculating a root mean square amplitude corresponding to the fifth carrier signal, judging whether the root mean square amplitude exceeds a preset threshold, and if so, extracting a characteristic index of the fifth carrier signal;
and the controller is used for acquiring the alarm grade corresponding to the characteristic index according to the corresponding relation between the characteristic index and the alarm grade and controlling the buzzer to alarm according to the alarm grade.
Preferably, the computer information security prevention and control device,
the density sensor is arranged on the cooling fan and used for detecting the air density of the cooling fan in the cooling process;
the controller is connected with the density sensor and used for calculating the heat exchange coefficient of the cooling fan according to the air density of the cooling fan in the cooling process;
wherein, the process that the controller calculates the radiating efficiency of cooling fan includes:
calculating the heat exchange coefficient h of the heat radiation fan, as shown in formula (1):
wherein N represents the Nussel number; ε represents the thermal conductivity of air; rho represents the air density of the heat dissipation fan in the heat dissipation process; l represents the thickness of the heat dissipation fan;
calculating the heat radiation efficiency eta of the heat radiation fan according to the heat exchange coefficient h of the heat radiation fan, as shown in a formula (2):
wherein d represents the diameter of the heat dissipation fan; mu represents the heat transfer coefficient of the cooling fan blade; s represents the contact area between the heat radiation fan and air in the heat radiation process; tanh () represents a hyperbolic tangent function; lambda represents the kinematic viscosity coefficient of air in the heat dissipation process of the heat dissipation fan; v represents the average velocity of air exchange during said heat dissipation; f represents the friction coefficient of the heat radiation fan in the heat radiation process; t represents the heat dissipation time of the heat dissipation fan;
the controller is also used for judging whether the heat dissipation efficiency is within a preset heat dissipation efficiency range, if not, the power of the heat dissipation fan is increased, and heat dissipation operation is continuously carried out; if so, keeping the normal working state to continue radiating.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the arrangement of the anti-theft mechanism, after the computer host is placed in the box body, the box cover is closed, the clamping plate on the front surface of the box cover is inserted into the groove, then the electric rod extends to push the clamping block to move and is clamped into the clamping groove on the surface of the clamping plate, so that the locking is completed, and the electric rod can be remotely controlled, so that the purpose of improving the safety effect is achieved.
2. According to the invention, through the arrangement of the alarm mechanism, after the box cover is locked, the box cover is in contact with the trigger switch body, and the trigger switch body starts to work at the moment, when the box cover is accidentally pried, the trigger switch body is separated from the box cover, and then the remote alarm is started, so that the alarm reminding personnel can be given out at the first time when the computer host is stolen, the optimal recovery time is avoided being missed, and meanwhile, after the anti-theft mechanism is unlocked, the trigger switch body automatically stops working, and the condition of false alarm is prevented.
3. According to the invention, through the arrangement of the positioning mechanism, after the computer mainframe is placed in the box body, the rotary drum is rotated to drive the screw rod to move, the screw rod drives the connecting piece to move through the threads arranged on the surface, so that the push plate is driven to move and contact with the computer mainframe, the effect of fixing the position of the computer mainframe is achieved, the computer mainframe is prevented from moving in the box body, and the computer is prevented from colliding with the inner wall of the box body.
4. According to the invention, through the arrangement of the auxiliary heat dissipation mechanism, the heat dissipation fan enables outside air to flow into the box body and flow out of the box body through the ventilation opening, so that flowing air is formed, the flowing air takes away heat of the computer host, thereby achieving the effect of auxiliary heat dissipation, improving the heat dissipation effect of the computer host in the box body, and avoiding influence on the work of the computer host caused by overhigh temperature of the computer host.
5. According to the invention, the content of the alarm mechanism is specifically explained, so that the alarm step is more refined, firstly, when the box cover is accidentally pried, the alarm is triggered according to accurate information through request signals, signal discrimination and signal transmission direction discrimination, so that the alarm is more rigorous, the purity of the obtained signals is ensured by processing the alarm signals, and finally, the alarm is given according to the corresponding relation between the characteristic indexes and the alarm grades, so that the alarm grading is realized, the alarm is given in time when an accident occurs, the safety of the prevention and control device is ensured, and the economic loss is also reduced.
6. In the invention, the computer host is subjected to auxiliary heat dissipation through the heat dissipation fan, the computer host is also a non-negligible device, the heat dissipation condition of the heat dissipation fan is known through calculation and judgment of the heat dissipation efficiency of the heat dissipation fan, and the power of the heat dissipation fan is adjusted in time when the heat dissipation condition is not good, wherein the heat exchange coefficient of the heat dissipation fan is calculated through the Knudel number, the heat conductivity of air, the air density of the heat dissipation fan in the heat dissipation process and the thickness of the heat dissipation fan, so that the calculation of the heat exchange coefficient is more accurate, the heat dissipation efficiency of the heat dissipation fan is calculated through the heat exchange coefficient, the calculation correctness of the heat dissipation efficiency is ensured, and a worker can know the heat dissipation condition in time through the judgment of the heat dissipation efficiency, so that the normal work of the computer host is practically ensured.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic top view of the fixing block of the present invention;
FIG. 3 is a schematic view of a partial side sectional structure of the case of the present invention;
FIG. 4 is a schematic top sectional view of the connecting plate of the present invention;
FIG. 5 is a schematic top cross-sectional view of another web of the present invention;
FIG. 6 is a control block diagram of a computer information security prevention and control apparatus according to an embodiment of the present invention;
fig. 7 is a control block diagram of a computer information security prevention and control apparatus according to another embodiment of the present invention.
In the figure: 1. a box body; 2. a box cover; 3. an anti-theft mechanism; 301. a fixed block; 302. a groove; 303. an electric rod; 304. a clamping block; 305. a clamping and connecting plate; 306. a card slot; 4. an alarm mechanism; 401. fixing grooves; 402. a spring; 403. a movable block; 404. a trigger switch body; 405. a signal transmitting module; 406. a switch control module; 407. an alarm module; 408. a controller; 409. a buzzer; 5. a positioning mechanism; 501. a connecting plate; 502. a rotating drum; 503. a screw; 504. a connecting member; 505. pushing the plate; 506. a limiting plate; 6. an auxiliary heat dissipation mechanism; 601. an air inlet; 602. a fixed mount; 603. a heat radiation fan; 6031. a density sensor; 604. a vent; 7. connecting blocks; 8. fixing screws; 9. a backing plate.
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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "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.
Referring to fig. 1-5, an embodiment of the present invention is shown: a computer information security prevention and control device comprises a box body 1, a box cover 2 is movably connected to the top end of the box body 1, anti-theft mechanisms 3 are arranged on the front sides of the box body 1 and the box cover 2, an alarm mechanism 4 is arranged on the top end of the box body 1, positioning mechanisms 5 are arranged on two sides of the lower end of the box body 1, an auxiliary heat dissipation mechanism 6 is arranged on one side of the box body 1, after a computer host is placed in the box body 1 through the arrangement of the anti-theft mechanisms 3, the box cover 2 is closed, a clamping plate 305 on the front side of the box cover 2 is inserted into a groove 302, an electric rod 303 is then extended to push the clamping block 304 to move and is clamped into a clamping groove 306 on the surface of the clamping plate 305 to complete locking, the electric rod 303 can be remotely controlled to achieve the purpose of improving the security effect, after the box cover 2 is locked, the electric rod is in contact with a trigger switch body 404, and the trigger switch body 404 starts to work, when the box cover 2 is accidentally pried open, the trigger switch body 404 is separated from the box cover 2, and then a remote alarm is started, so that an alarm reminding person can be given at the first time when the computer host is stolen, the best recovery time is avoided from missing, meanwhile, after the anti-theft mechanism 3 is unlocked, the trigger switch body 404 automatically stops working, and the situation of false alarm is prevented, through the arrangement of the positioning mechanism 5, after the computer host is placed in the box body 1, the rotary drum 502 is rotated, so that the rotary drum 502 drives the screw rod 503 to move, the screw rod 503 drives the connecting piece 504 to move through the threads arranged on the surface, so that the push plate 505 is driven to move and contact with the computer host, the effect of fixing the position of the computer host is achieved, the computer host is prevented from moving in the box body 1, the computer is prevented from colliding with the inner wall of the box body 1, and through the arrangement of the auxiliary heat dissipation mechanism 6, the heat dissipation fan 603 makes the external air flow into the box 1 and flow out of the box 1 through the vent 604, so as to form flowing air, and the flowing air takes away the heat of the host computer, thereby achieving the effect of auxiliary heat dissipation, improving the heat dissipation effect of the host computer in the box 1, and avoiding the influence on the work of the host computer caused by overhigh temperature of the host computer.
Further, the anti-theft mechanism 3 comprises a fixed block 301, a groove 302, an electric rod 303, a clamping block 304, a clamping plate 305 and a clamping groove 306, the fixed block 301 is fixedly connected with the box body 1, the groove 302 is arranged at one end of the fixed block 301 close to the box body 1, the electric rod 303 is fixedly connected with the inner wall of the fixed block 301, the clamping block 304 is fixedly connected with one end of the electric rod 303 far away from the inner wall of the fixed block 301, the clamping block 304 is movably connected with the fixed block 301, the clamping plate 305 is fixedly connected with the front surface of the box cover 2, the clamping groove 306 is arranged on the surface of the clamping plate 305, and the clamping groove 306 penetrates through the inner wall of the clamping plate 305, through the arrangement of the anti-theft mechanism 3, after the computer mainframe is placed in the box body 1, the box cover 2 is closed, the clamping plate 305 on the front surface of the box cover 2 is inserted into the groove 302, then, the electric rod 303 extends to push the clamping block 304 to move, and the clamping block is clamped into the clamping groove 306 on the surface of the clamping plate 305 to complete locking, so that the electric rod 303 can be remotely controlled.
Further, the alarm mechanism 4 includes a fixing groove 401, two springs 402, a movable block 403 and a trigger switch body 404, the fixing groove 401 is provided on the top of the box body 1, the number of the fixing grooves 401 is two, the springs 402 are fixedly connected to the inner bottom walls of the two fixing grooves 401, the movable block 403 is fixedly connected to the top end of the springs 402, the movable block 403 is movably connected to the inner walls of the fixing grooves 401, the trigger switch body 404 is fixedly mounted on the top end of the movable block 403, the trigger switch body 404 is matched with the bottom end of the box cover 2, the box cover 2 is locked through the alarm mechanism 4 and then contacts with the trigger switch body 404, the trigger switch body 404 starts to work at the moment, when the box cover 2 is accidentally pried, the remote alarm is started after the trigger switch body 404 is separated from the box cover 2, and meanwhile, after the anti-theft mechanism 3 is unlocked, the trigger switch body 404 automatically stops working.
Further, the positioning mechanism 5 comprises two connecting plates 501, two rotary drums 502, screw rods 503, connecting pieces 504, push plates 505 and limit plates 506, the two connecting plates 501 are respectively and fixedly connected to the lower ends of the two sides of the box body 1, a cavity is formed in the inner wall of the connecting plates 501 and penetrates through the inner wall of the box body 1, one end of one connecting plate 501 is rotatably connected with the rotary drum 502, anti-slip patterns are arranged on the surface of the rotary drum 502, one end of the rotary drum 502 is fixedly connected with the screw rods 503 and is rotatably connected with the connecting plates 501, the surface of the screw rods 503 is in threaded connection with the connecting pieces 504, one end of the connecting pieces 504, far away from the screw rods 503, is fixedly connected with the push plates 505, the push plates 505 are movably connected with the inner bottom wall of the box body 1, one end of the push plates 505, far away from the connecting pieces 504, is fixedly connected with the limit plates 506 and is movably connected with the inner walls of the cavities of the other connecting plates 501, and by the positioning mechanism 5, the rotating drum 502 is rotated to drive the screw rod 503 to move by the rotating drum 502, the screw rod 503 drives the connecting piece 504 to move through the thread arranged on the surface, and therefore the push plate 505 is driven to move and contact with the computer host, and the effect of fixing the position of the computer host is achieved.
Further, the auxiliary heat dissipation mechanism 6 includes an air inlet 601, a fixing frame 602, a heat dissipation fan 603 and a vent 604, the air inlet 601 is disposed at one side of the box body 1, the fixing frame 602 is fixedly connected to the inner wall of the air inlet 601, one end of the fixing frame 602, which is far away from the inner wall of the air inlet 601, is fixedly connected with the heat dissipation fan 603, the vent 604 is disposed at two ends of the box body 1, through the arrangement of the auxiliary heat dissipation mechanism 6, the heat dissipation fan 603 enables external air to flow into the box body 1, and the external air flows out of the box body 1 through the vent 604, so as to form flowing air, and the flowing air takes away heat of the computer host, thereby achieving the effect of auxiliary heat dissipation.
Further, the one end fixedly connected with connecting block 7 of box 1, the quantity of connecting block 7 is two, and threaded hole is seted up on the surface of connecting block 7, and the inner wall threaded connection of screw hole has set screw 8, through connecting block 7 and set screw 8's setting, reaches the purpose that makes things convenient for box 1 and wall connection.
Further, the equal fixedly connected with backing plate 9 in bottom four corners of box 1, the bottom of backing plate 9 is provided with anti-skidding line, and the material of backing plate 9 is rubber, through the setting of backing plate 9, when not using the fixed box 1 of set screw 8, can increase box 1's stability, reaches certain shock attenuation effect simultaneously.
The working principle is as follows: through the setting of the anti-theft mechanism 3, after the computer host is placed in the box body 1, the box cover 2 is closed, the clamping plate 305 on the front side of the box cover 2 is inserted into the groove 302, then the electric rod 303 extends to push the clamping block 304 to move and is clamped into the clamping groove 306 on the surface of the clamping plate 305 to complete locking, the electric rod 303 can be remotely controlled to achieve the purpose of improving the safety effect, through the setting of the alarm mechanism 4, after the box cover 2 is locked, the electric rod contacts with the trigger switch body 404 and the trigger switch body 404 starts to work at the moment, when the box cover 2 is accidentally pried open, the trigger switch body 404 is separated from the box cover 2, the remote alarm is started, so that the alarm reminding personnel can be given out at the first time when the computer host is stolen, the optimal recovery time is avoided from missing, meanwhile, after the anti-theft mechanism 3 is unlocked, the trigger switch body 404 automatically stops working, and the false alarm condition is prevented, after the computer mainframe is placed in the box 1 through the arrangement of the positioning mechanism 5, the rotating drum 502 is rotated, the rotating drum 502 drives the screw 503 to move, the screw 503 moves the connecting piece 504 through the thread arranged on the surface, thereby driving the push plate 505 to move and contact with the computer mainframe, achieving the effect of fixing the position of the computer mainframe, avoiding the computer mainframe moving in the box body 1, and preventing the computer from colliding with the inner wall of the box body 1, through the arrangement of the auxiliary heat dissipation mechanism 6, the heat dissipation fan 603 makes the outside air flow into the box body 1, flow out of the box body 1 through the ventilation opening 604, therefore, flowing air is formed, and takes away the heat of the computer host, so that the effect of auxiliary heat dissipation is achieved, the heat dissipation effect of the computer host in the box body 1 is improved, and the influence on the work of the computer host caused by overhigh temperature of the computer host is avoided.
As shown in fig. 6, the present invention provides a technical solution: the computer information security prevention and control device is characterized in that the alarm mechanism 4 further comprises:
the signal sending module 405 is arranged on the box cover 2 and is used for sending a request signal to the switch control module 406 when the prevention and control device is in a working state and the box cover 2 is accidentally pried;
the switch control module 406 is configured to receive the request signal sent by the signal sending module 405, and send a response signal to the signal sending module 405;
the switch control module 406 is further configured to measure the time taken for the alarm module 407 to receive the request signal, and the average speed of transmission of the response signal, to calculate the distance between the lid 2 and the alarm module 407, meanwhile, the request signal is self-correlated to obtain a self-correlation matrix, the characteristic value of the self-correlation matrix is determined, the interference of noise signals in the request signal is filtered, simultaneously inputting the request signal into a direction model, outputting a direction characteristic related to the request signal, and determines a direction vector of the request signal based on the characteristic value and the direction characteristic, and determines whether the distance is within a preset distance range, whether the direction vector deviates from a preset direction vector, if both are satisfied, then the switch of the alarm module 407 is turned on, and an alarm signal is generated and sent to the alarm module 407;
the alarm module 407 includes:
the alarm signal acquisition unit is used for acquiring an alarm signal when the alarm module 407 works;
the signal preprocessing unit is used for loading the alarm signal on a high-frequency signal to obtain a first carrier signal, performing discrete filtering processing on the first carrier signal, performing short-time Fourier transform to obtain a second carrier signal, performing gain compensation on the second carrier signal according to a gain factor, and suppressing and filtering a mixed signal to obtain a third carrier signal;
the signal preprocessing unit is further configured to determine a window function when the third carrier signal is framed according to the characteristics of the window function, perform framing based on the window function, perform wavelet transformation on the framed third carrier signal to obtain a fourth carrier signal, and perform noise reduction processing on the fourth carrier signal according to a spectral subtraction method to obtain a fifth carrier signal;
the calculating unit is used for calculating a root mean square amplitude corresponding to the fifth carrier signal, judging whether the root mean square amplitude exceeds a preset threshold, and if so, extracting a characteristic index of the fifth carrier signal;
and the controller 408 is configured to obtain an alarm level corresponding to the characteristic index according to the corresponding relationship between the characteristic index and the alarm level, and control the buzzer 409 to alarm according to the alarm level.
In this embodiment, the direction model is to analyze the direction characteristics of the request signal according to the direction parameters, where the direction parameters include longitude and latitude, position coordinates, and the like.
In this embodiment, determining the direction vector of the request signal based on the feature value and the direction feature means determining the deviation direction between the request signal and the alarm module 407 according to the current position coordinates or longitude and latitude of the request signal and the alarm module 407 and placing the request signal and the alarm module 407 in a coordinate system.
In this embodiment, the window function is a real function whose values are all 0 except in a given interval.
In this embodiment, the spectral subtraction is a speech enhancement method proposed by using the statistical stationarity of noise and the feature that additive noise is not correlated with speech.
In this embodiment, the characteristic index refers to an amplitude index of the fifth carrier signal.
In this embodiment, the correspondence between the characteristic indicator and the alarm level refers to the classification of the alarm level according to the amplitude of the fifth carrier signal, for example: the alarm level corresponding to the first alarm level with the minimum amplitude value and the alarm level corresponding to the nth alarm level with the maximum amplitude value are higher, namely the larger the amplitude value is, the higher the corresponding alarm level is.
In this embodiment, the alarm mechanism 4 is further provided with a signal sending module 405, a switch control module 406, an alarm module 407, a controller 408, and a buzzer 409, which specifically includes: firstly, when the prevention and control device is in a working state and the box cover 2 is accidentally pried open, the signal sending module 405 sends a request signal to the switch control module 406, the switch control module 406 receives the request signal and sends a response signal to the signal sending module 405, and simultaneously calculates the distance between the box cover 2 and the alarm module 407 by measuring the time for the alarm module 407 to receive the request signal, the request signal and the average speed of transmission of the response signal, and simultaneously performs autocorrelation on the request signal to obtain an autocorrelation matrix, determines a characteristic value of the autocorrelation matrix, filters the interference of a noise signal in the request signal, inputs the request signal into a direction model, outputs a direction characteristic related to the request signal, determines a direction vector of the request signal based on the characteristic value and the direction characteristic, and judges whether the distance is within a preset distance range or not and whether the direction vector deviates from the preset direction vector or not, if both are satisfied, the switch of the alarm module 407 is turned on, an alarm signal is generated and sent to the alarm module 407, then the alarm signal acquisition unit acquires the alarm signal when the alarm module 407 is operating, the signal preprocessing unit loads the alarm signal onto a high frequency signal to obtain a first carrier signal, the first carrier signal is subjected to discrete filtering processing and short time fourier transform to obtain a second carrier signal, the second carrier signal is subjected to gain compensation according to a gain factor, a mixed signal is suppressed and filtered to obtain a third carrier signal, a window function when the third carrier signal is framed is determined according to the characteristics of the window function, framing is performed based on the window function, wavelet transform is performed on the framed third carrier signal to obtain a fourth carrier signal, noise reduction processing is performed on the fourth carrier signal according to spectral subtraction, and obtaining a fifth carrier signal, calculating a root mean square amplitude corresponding to the fifth carrier signal by the calculating unit, judging whether the root mean square amplitude exceeds a preset threshold, if so, extracting a characteristic index of the fifth carrier signal, finally, obtaining an alarm grade corresponding to the characteristic index by the controller 408 according to the corresponding relation between the characteristic index and the alarm grade, and controlling the buzzer 409 to alarm according to the alarm grade.
The beneficial effects of the above technical scheme are: the content of the alarm mechanism 4 is specifically explained, so that the alarm step is more refined, when the box cover 2 is accidentally pried, the alarm is triggered according to the accurate information through the request signal, the judgment of the signal and the identification of the signal transmission direction, so that the alarm is more rigorous, some processing of the alarm signal ensures the purity of the obtained signal, and finally the alarm is given according to the corresponding relation between the characteristic index and the alarm grade, so that the alarm grading is realized, the timely alarm is given when an accident occurs, the safety of the prevention and control device is ensured, and the economic loss is also reduced.
As shown in fig. 7, the present invention provides a technical solution: the computer information security prevention and control device,
a density sensor 6031, disposed on the heat dissipation fan 603, for detecting an air density of the heat dissipation fan 603 in a heat dissipation process;
the controller 408 is connected to the density sensor 6031, and configured to calculate a heat exchange coefficient of the cooling fan 603 according to an air density of the cooling fan 603 in a cooling process;
the process of calculating the heat dissipation efficiency of the heat dissipation fan 603 by the controller 408 includes:
calculating the heat exchange coefficient h of the cooling fan 603, as shown in formula (1):
wherein N represents the Nussel number; ε represents the thermal conductivity of air; ρ represents the air density of the heat dissipation fan 603 in the heat dissipation process; l represents the thickness of the heat dissipation fan 603;
calculating the heat dissipation efficiency η of the heat dissipation fan 603 according to the heat exchange coefficient h of the heat dissipation fan 603, as shown in formula (2):
wherein d represents the diameter of the cooling fan 603; μ represents a heat transfer coefficient of the blade of the cooling fan 603; s represents a contact area between the heat dissipation fan 603 and air in a heat dissipation process; tanh () represents a hyperbolic tangent function; λ represents a kinematic viscosity coefficient of air in a heat dissipation process of the heat dissipation fan 603; v represents the average velocity of air exchange during said heat dissipation; f represents the friction coefficient of the heat dissipation fan 603 in the heat dissipation process; t represents the heat dissipation time of the heat dissipation fan 603;
the controller 408 is further configured to determine whether the heat dissipation efficiency is within a preset heat dissipation efficiency range, and if not, increase the power of the heat dissipation fan 603 and continue the heat dissipation operation; if so, keeping the normal working state to continue radiating.
In this embodiment, during the period when the cooling fan 603 is in the working state, the detecting, calculating and determining the cooling effect of the cooling fan 603 includes: firstly, detecting the air density of the cooling fan 603 in the cooling process by a density sensor 6031, then calculating the heat exchange coefficient of the cooling fan 603 by the controller 408 according to the air density of the cooling fan 603 in the cooling process, calculating the cooling efficiency of the cooling fan 603 according to the heat exchange coefficient of the cooling fan 603, and finally judging whether the cooling efficiency is within a preset cooling efficiency range by the controller 408, if not, increasing the power of the cooling fan 603, and continuously performing the cooling operation; if so, keeping the normal working state to continue radiating.
The beneficial effects of the above technical scheme are: the cooling fan 603 performs auxiliary cooling on the computer host, and for the computer host, the cooling fan is also a non-negligible device, the cooling condition of the cooling fan 603 is known by calculating and judging the cooling efficiency of the cooling fan 603, when the cooling condition is not good, the power of the cooling fan 603 is adjusted in time, wherein the heat exchange coefficient of the cooling fan 603 is calculated by the nussel number, the heat conductivity of air, the air density of the cooling fan 603 in the cooling process and the thickness of the cooling fan 603, so that the calculation of the heat exchange coefficient is more accurate, the cooling efficiency of the cooling fan 603 is calculated by the heat exchange coefficient, the calculation accuracy of the cooling efficiency is ensured, a worker can know the cooling condition in time by judging the cooling efficiency, and the normal work of the computer host is guaranteed practically.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a prevention and control device of computer information security, includes box (1), its characterized in that: the top swing joint of box (1) has case lid (2), the front of box (1) and case lid (2) all is provided with anti-theft mechanism (3), the top of box (1) is provided with alarm mechanism (4), the both sides of box (1) lower extreme all are provided with positioning mechanism (5), one side of box (1) is provided with supplementary heat dissipation mechanism (6).
2. The apparatus for preventing and controlling computer information security according to claim 1, wherein: anti-theft mechanism (3) are including fixed block (301), recess (302), electronic pole (303), fixture block (304), joint board (305) and draw-in groove (306), fixed block (301) and box (1) fixed connection, fixed block (301) are close to the one end of box (1) and are seted up recess (302), the electronic pole (303) of inner wall fixedly connected with of fixed block (301), the one end fixedly connected with fixture block (304) of fixed block (301) inner wall is kept away from in electronic pole (303), fixture block (304) and fixed block (301) swing joint, the positive fixed connection of joint board (305) and case lid (2), draw-in groove (306) have been seted up on the surface of joint board (305), draw-in groove (306) run through the inner wall of joint board (305).
3. The apparatus for preventing and controlling computer information security according to claim 1, wherein: alarm mechanism (4) are including fixed slot (401), spring (402), movable block (403) and trigger switch body (404), the top at box (1) is seted up in fixed slot (401), the quantity of fixed slot (401) is two, two the equal fixedly connected with spring (402) of inner diapire of fixed slot (401), the top fixedly connected with movable block (403) of spring (402), the inner wall swing joint of movable block (403) and fixed slot (401), the top fixed mounting of movable block (403) has trigger switch body (404), the bottom looks adaptation of trigger switch body (404) and case lid (2).
4. The apparatus for preventing and controlling computer information security according to claim 1, wherein: the positioning mechanism (5) comprises two connecting plates (501), rotary drums (502), screw rods (503), connecting pieces (504), a push plate (505) and a limiting plate (506), the number of the connecting plates (501) is two, the two connecting plates (501) are respectively and fixedly connected to the lower ends of the two sides of the box body (1), a cavity is formed in the inner wall of each connecting plate (501) and penetrates through the inner wall of the box body (1), one end of one connecting plate (501) is rotatably connected with the rotary drum (502), anti-slip threads are arranged on the surface of the rotary drum (502), one end of the rotary drum (502) is fixedly connected with the screw rod (503) and is rotatably connected with the connecting plates (501), the connecting piece (504) is in threaded connection with the surface of the screw rod (503), one end, far away from the screw rod (503), of the connecting piece (504) is fixedly connected with the push plate (505), and the push plate (505) is movably connected with the inner bottom wall of the box body (1), one end, far away from the connecting piece (504), of the push plate (505) is fixedly connected with a limiting plate (506), and the limiting plate (506) is movably connected with the inner wall of the cavity of the other connecting plate (501).
5. The apparatus for preventing and controlling computer information security according to claim 1, wherein: supplementary heat dissipation mechanism (6) include air intake (601), mount (602), cooling fan (603) and vent (604), one side in box (1) is seted up in air intake (601), the inner wall fixedly connected with mount (602) of air intake (601), one end fixedly connected with cooling fan (603) of air intake (601) inner wall are kept away from in mount (602), and the both ends in box (1) are seted up in vent (604).
6. The apparatus for preventing and controlling computer information security according to claim 1, wherein: the box body (1) is characterized in that one end of the box body (1) is fixedly connected with connecting blocks (7), the number of the connecting blocks (7) is two, threaded holes are formed in the surface of each connecting block (7), and fixing screws (8) are connected to the inner wall of each threaded hole in a threaded mode.
7. The apparatus for preventing and controlling computer information security according to claim 1, wherein: the box is characterized in that base plates (9) are fixedly connected to four corners of the bottom end of the box body (1), anti-slip grains are arranged at the bottom ends of the base plates (9), and the base plates (9) are made of rubber.
8. The apparatus for preventing and controlling computer information security according to claim 1, wherein: the alarm mechanism (4) further comprises:
the signal sending module (405) is arranged on the box cover (2) and used for sending a request signal to the switch control module (406) when the prevention and control device is in the working state and the box cover (2) is accidentally pried;
the switch control module (406) is configured to receive the request signal sent by the signal sending module (405), and send a response signal to the signal sending module (405);
the switch control module (406) is further configured to measure a time taken by an alarm module (407) to receive the request signal, and an average speed of transmission of a response signal, to calculate a distance between the box cover (2) and the alarm module (407), to perform autocorrelation on the request signal at the same time to obtain an autocorrelation matrix, to determine a feature value of the autocorrelation matrix, to filter interference of a noise signal in the request signal, to input the request signal into a direction model at the same time, to output a direction feature related to the request signal, to determine a direction vector of the request signal based on the feature value and the direction feature, to determine whether the distance is within a preset distance range, whether the direction vector deviates from a preset direction vector, and to turn on a switch of the alarm module (407) if both of the distance and the direction vector are satisfied, generating an alarm signal and sending the alarm signal to the alarm module (407);
the alarm module (407) comprising:
the alarm signal acquisition unit is used for acquiring an alarm signal when the alarm module (407) works;
the signal preprocessing unit is used for loading the alarm signal on a high-frequency signal to obtain a first carrier signal, performing discrete filtering processing on the first carrier signal, performing short-time Fourier transform to obtain a second carrier signal, performing gain compensation on the second carrier signal according to a gain factor, and suppressing and filtering a mixed signal to obtain a third carrier signal;
the signal preprocessing unit is further configured to determine a window function when the third carrier signal is framed according to the characteristics of the window function, perform framing based on the window function, perform wavelet transformation on the framed third carrier signal to obtain a fourth carrier signal, and perform noise reduction processing on the fourth carrier signal according to a spectral subtraction method to obtain a fifth carrier signal;
the calculating unit is used for calculating a root mean square amplitude corresponding to the fifth carrier signal, judging whether the root mean square amplitude exceeds a preset threshold, and if so, extracting a characteristic index of the fifth carrier signal;
and the controller (408) is used for acquiring the alarm grade corresponding to the characteristic index according to the corresponding relation between the characteristic index and the alarm grade and controlling the buzzer (409) to alarm according to the alarm grade.
9. The apparatus for preventing and controlling computer information security according to claim 8, wherein:
the density sensor (6031) is arranged on the heat radiation fan (603) and used for detecting the air density of the heat radiation fan (603) in the heat radiation process;
the controller (408) is connected with the density sensor (6031) and is used for calculating the heat exchange coefficient of the heat dissipation fan (603) according to the air density of the heat dissipation fan (603) in the heat dissipation process;
wherein the process of calculating the heat dissipation efficiency of the heat dissipation fan (603) by the controller (408) comprises:
calculating the heat exchange coefficient h of the heat radiation fan (603), as shown in formula (1):
wherein N represents the Nussel number; ε represents the thermal conductivity of air; p represents the air density of the heat dissipation fan (603) in the heat dissipation process; l represents the thickness of the heat dissipation fan (603);
calculating the heat dissipation efficiency eta of the heat dissipation fan (603) according to the heat exchange coefficient h of the heat dissipation fan (603), as shown in a formula (2):
wherein d represents the diameter of the cooling fan (603); mu represents the heat transfer coefficient of the blades of the heat dissipation fan (603); s represents the contact area between the heat radiation fan (603) and air in the heat radiation process; tanh () represents a hyperbolic tangent function; λ represents a kinematic viscosity coefficient of air in a heat dissipation process of the heat dissipation fan (603); v represents the average velocity of air exchange during said heat dissipation; f represents the friction coefficient of the heat radiation fan (603) in the heat radiation process; t represents the heat dissipation time of the heat dissipation fan (603);
the controller (408) is further configured to determine whether the heat dissipation efficiency is within a preset heat dissipation efficiency range, and if not, increase the power of the heat dissipation fan (603) and continue the heat dissipation operation; if so, keeping the normal working state to continue radiating.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210093423.7A CN114417441A (en) | 2022-01-26 | 2022-01-26 | Computer information security's prevention and control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210093423.7A CN114417441A (en) | 2022-01-26 | 2022-01-26 | Computer information security's prevention and control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116401112A (en) * | 2023-05-31 | 2023-07-07 | 湖南开放大学(湖南网络工程职业学院、湖南省干部教育培训网络学院) | Safety detection device and method for computer application node |
| CN117744174A (en) * | 2024-01-24 | 2024-03-22 | 北京中鼎昊硕科技有限责任公司 | Edge computing database security encryption device for big data analysis |
-
2022
- 2022-01-26 CN CN202210093423.7A patent/CN114417441A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116401112A (en) * | 2023-05-31 | 2023-07-07 | 湖南开放大学(湖南网络工程职业学院、湖南省干部教育培训网络学院) | Safety detection device and method for computer application node |
| CN116401112B (en) * | 2023-05-31 | 2023-12-12 | 湖南开放大学(湖南网络工程职业学院、湖南省干部教育培训网络学院) | Safety detection device and method for computer application node |
| CN117744174A (en) * | 2024-01-24 | 2024-03-22 | 北京中鼎昊硕科技有限责任公司 | Edge computing database security encryption device for big data analysis |
| CN117744174B (en) * | 2024-01-24 | 2024-04-12 | 北京中鼎昊硕科技有限责任公司 | Edge computing database security encryption device for big data analysis |
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