CN117221519B - Induction alarm system for preventing cheating in examination - Google Patents
Induction alarm system for preventing cheating in examination Download PDFInfo
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- CN117221519B CN117221519B CN202311467804.8A CN202311467804A CN117221519B CN 117221519 B CN117221519 B CN 117221519B CN 202311467804 A CN202311467804 A CN 202311467804A CN 117221519 B CN117221519 B CN 117221519B
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Abstract
The invention belongs to the technical field of examination detection, and particularly relates to an induction alarm system for preventing examination cheating, which comprises a mounting frame, wherein a bottom plate is arranged on one side of the mounting frame, a detection unit is also arranged on the inner side of the mounting frame, the detection unit is a camera, the camera is arranged on the inner side of the mounting frame and at least partially extends out of the mounting frame, the camera is used for capturing videos or pictures of examination scenes, the processing unit is used for processing images or video data acquired from the camera, the processing unit is a processing chip arranged on the inner side of the camera, the detection subsystem is used for analyzing the image data, and the indication system is used for warning and indicating examinees. According to the invention, when the plug of the camera suddenly loosens, the temporary power supply is used for supplying power to the camera, and when the power supply of the camera is overheated, the temporary power supply in the camera is changed.
Description
Technical Field
The invention belongs to the technical field of examination detection, and particularly relates to an induction alarm system for preventing examination cheating.
Background
The examination is an important means for evaluating the knowledge, the capability and the quality of students or examinees, is also an important component part of education and social development, and various examination anti-cheating systems and methods are widely applied to various examinations in order to ensure fairness, fairness and effectiveness of the examination and prevent the occurrence of examination cheating;
currently, in some long-time tests such as patent tests, judicial tests or other tests, the duration of the test is generally 3 hours or longer, and in similar tests, test monitoring is generally performed through a small mobile camera, so that in order to ensure real-time monitoring, most of the cameras are powered by plugs, but in the test process, the power of the cameras is possibly cut off due to the walking of a prisoner and a person who inserts paper in advance, and the time of reinserting the cameras is not monitored;
in addition, in the monitoring process, long-time use can cause overheat and damage of a pcb in the camera, so that examination monitoring is affected, although components such as a temperature sensor, a relay and a radiating fin can be arranged in the camera, the devices can generate heat, so that heat in the device is quickly gathered and is difficult to dissipate, and some power supply overheat protection devices of the camera can only switch power supplies when the camera is overheated and directly shut down after power failure, so that smooth examination monitoring cannot be ensured, and the power supply of an external power supply cannot be automatically recovered when the camera recovers to normal temperature;
therefore, in the state of the art, how to improve the stability and reliability of the anti-cheating examination system based on video monitoring in long-time examination in a large classroom and the effectiveness and safety in remote or on-line examination is a problem to be solved in the technical field.
Disclosure of Invention
1. Technical problem to be solved
The invention aims to provide an induction alarm system for preventing cheating in an examination, which can supply power to a camera by using a temporary power supply when a camera plug suddenly loosens, ensure the comprehensiveness of a camera monitoring examination room, disconnect the camera from an external power supply when the power supply of the camera is overheated, and change the temporary power supply in the camera, thereby ensuring the service life and the safety of the camera.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides an induction alarm system for preventing examination cheating, includes the installing frame, one side of installing frame is provided with the bottom plate, the inboard of installing frame still is provided with:
the detection unit is a camera, the camera is arranged on the inner side of the installation frame, at least part of the camera extends out of the installation frame, and the camera is used for capturing videos or pictures of examination scenes;
the processing unit is used for processing the image or video data acquired from the camera, and is a processing chip arranged on the inner side of the camera;
a detection subsystem for analyzing the image data;
an indication system for alerting and indicating the test taker;
a remote monitoring system for triggering a remote alarm notifying a prisoner or a related institution;
the control unit is used for controlling and adjusting the indication priority, and is a control pcb board arranged inside the camera;
a temporary power supply is arranged on the inner side of the camera, and a power supply conversion structure is arranged between the bottom plate and the camera and on the inner side of the mounting frame;
the power conversion structure comprises memory conductive metal fixed at one end of the camera close to the mounting frame, a sliding column is connected inside the mounting frame in a sliding manner, a connecting sheet is arranged at one end of the sliding column close to the memory conductive metal, a second spring is arranged between the bottom plate and the connecting sheet and positioned at the outer side of the sliding column, a connecting wire is connected to the outer side of the connecting sheet, and the connecting wire is connected with an external power supply;
the edge of the bottom plate is connected with a plurality of screws in a threaded manner, and the bottom plate is connected with the wall body through the screws.
The inner sides of the mounting frames are provided with a plurality of clamping bodies, and the clamping bodies comprise connecting frames, clamping strips and third springs;
the connecting frame is connected with the mounting frame, the clamping strip is connected to the inner side of the connecting frame in a sliding manner, the third spring is fixed to the inner side of the connecting frame, one end of the third spring is connected with the end part of the connecting frame, and the other end of the third spring is connected with the clamping strip;
the camera comprises a camera body, a plurality of clamping bodies, a plurality of first guide grooves, a plurality of second guide grooves, a plurality of third guide grooves, a plurality of first guide grooves, a plurality of second guide grooves and a plurality of third guide grooves, wherein the first guide grooves are arranged on the outer side of the camera body, the number of the first guide grooves is the same as that of the clamping bodies, the positions of the first guide grooves correspond to the number of the clamping bodies, one end of each first guide groove is arranged at the end of the camera body, the other end of each first guide groove is positioned on the outer side of the camera body, the second guide grooves extend out of the camera body, the second guide grooves are obliquely arranged on the camera body, and the second guide grooves are far away from one end of the first guide grooves and are positioned on the outer side of the camera body;
the camera is located the inboard of third guide way is provided with a spacing deep slot, should spacing deep slot's degree of depth is greater than the degree of depth of third guide way, just the draw-in strip with first guide way, second guide way, third guide way and spacing deep slot all sliding connection, the inboard of spacing deep slot is provided with the disengagement mechanism, disengagement mechanism is used for the drive the draw-in strip breaks away from spacing deep slot.
The disengaging mechanism comprises a sliding rod which is transversely connected with the inner side of the camera in a sliding way, a blocking block is fixed at one end of the sliding rod, which is close to the clamping strip, inclined planes are arranged on two sides of the upper part of the blocking block, the inclined planes are matched with the height of the clamping strip, the outside of slide bar is provided with one and blocks the piece, just block the piece with between the camera and be located the outside of slide bar is provided with first spring, spacing deep groove is close to one side of third guide way is provided with tightly laminating groove, just hug closely and closing the groove with block the piece looks adaptation.
A groove is formed in the inner side of the bottom plate, a plurality of second clamping blocks are arranged on the inner side of the groove, a rotating ring piece is arranged on the inner side of the groove and positioned on the inner side of the second clamping blocks, and at least one first clamping block corresponding to the second clamping blocks is arranged on the outer side of the rotating ring piece;
the rotating ring piece and the screw are provided with a synchronous structure therebetween, the synchronous structure is used for enabling the screw to synchronously rotate with the rotating ring piece, the inner side of the groove is also provided with a blocking structure, and the blocking structure is used for blocking the rotating ring piece from separating from the groove.
The synchronous structure comprises two limiting blocks arranged on the inner side of the rotating ring piece, a limiting groove is formed in the outer side of the screw and located at the position corresponding to the limiting block, and the limiting block is located on the inner side of the limiting groove.
The blocking structure comprises a connecting guide rod arranged at the inner side of the groove, the connecting guide rod is close to one end of the rotating ring piece and is positioned at the inner side and the outer side of the rotating ring piece, protruding blocks are arranged on the inner side and the outer side of the rotating ring piece, and mounting grooves corresponding to the protruding blocks are formed in the inner side of the rotating ring piece.
An insulating sheet is arranged on one side, close to the sliding column, of the connecting sheet in an attached mode, and the sliding column and the second spring are in contact with the insulating sheet.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) In the monitoring, the invention can supply power to the camera by using the temporary power supply when the plug of the camera suddenly loosens, thereby ensuring the comprehensiveness of the camera monitoring examination room, disconnecting the camera from the external power supply when the power supply of the camera is overheated, and changing the temporary power supply in the camera, thereby ensuring the service life and the safety of the camera.
Drawings
FIG. 1 is a schematic diagram of a system of the present invention;
FIG. 2 is a schematic view of the structure between the mounting frame, the base plate and the camera of the present invention;
FIG. 3 is a schematic diagram of the structure between the memory conductive metal, the second guide slot and the control pcb in the present invention;
FIG. 4 is a schematic illustration of the structure between the memory conductive metal, the second spring and the connecting wire in the present invention;
FIG. 5 is a schematic view of the structure of the clamping body, the third guide groove and the camera according to the present invention;
FIG. 6 is a schematic view showing the structure among the first guide groove, the second guide groove and the third guide groove in the present invention;
FIG. 7 is a schematic view of the structure between the inclined surface, the clamping strip and the first spring in the present invention;
FIG. 8 is a schematic view of the structure between the third spring, the clip strip and the connecting frame of the present invention;
FIG. 9 is a schematic view of the structure of the screw, the limit groove and the second clamping block in the invention;
FIG. 10 is a schematic view illustrating the structure of the first latch, the second latch and the stopper according to the present invention;
FIG. 11 is a cross-sectional view of a base plate of the present invention;
fig. 12 is an enlarged view of the incline plane a of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a mounting frame; 2. a bottom plate; 3. a camera; 4. controlling the pcb board; 5. a first guide groove; 6. a second guide groove; 7. a third guide groove; 8. a clamping body; 9. a slide bar; 10. a blocking piece; 11. an inclined plane; 12. a first spring; 13. a memory conductive metal; 14. a sliding column; 15. a connecting sheet; 16. an insulating sheet; 17. a second spring; 18. connecting wires; 19. a screw; 20. rotating the ring piece; 21. a limiting block; 22. a limit groove; 23. a first clamping block; 24. a second clamping block; 25. connecting a guide rod; 26. a bump; 27. a mounting groove; 81. a connection frame; 82. clamping strips; 83. a third spring; 71. limiting the deep groove; 72. and (5) tightly fitting the groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 4, an induction alarm system for preventing cheating in an examination, which comprises a mounting frame 1, wherein a bottom plate 2 is arranged on one side of the mounting frame 1, and the inner side of the mounting frame 1 is also provided with:
the detection unit is a camera 3, the camera 3 is arranged on the inner side of the installation frame 1, the camera 3 at least partially extends out of the installation frame 1, the camera 3 is used for capturing video or pictures of an examination scene, when an examination is started, the camera 3 is started and initialized, and one or more cameras 3 start capturing images and video data of the examination scene, and the data are used for subsequent analysis and monitoring;
the processing unit is used for processing the image or video data acquired from the camera 3, the processing unit is a processing chip arranged on the inner side of the camera 3, the image processing unit receives and analyzes the image data from the camera detection unit, and the processing unit uses an image processing algorithm to identify the hand action of a examinee and other possible illegal actions such as the prompt action or the implication action of cheating;
the detection subsystem is used for analyzing the image data, and the analyzed image can be conveyed or voided through a subsequent control unit;
the indication system is used for warning the examinee and indicating the examinee, reminding the examinee of possible cheating, displaying a green light in a normal state by the system if no cheating is caused, entering a yellow light warning stage by the system if the illegal is detected, and timing for 5 seconds in the yellow light warning stage, continuing to detect whether obvious prompting actions exist by the system if actions of the examinee are not stopped before timing is finished, and lighting a red light by the system if the obvious prompting actions appear or the yellow light timing is finished, triggering an alarm for the examinee at the same time, so that the examinee can check the examinee and determine whether the examination is to be continued or not qualified, and directly skipping shaking to change into red light lighting once the actions of the examinee appear obvious prompting actions with cheating or notifying other examinees;
the remote monitoring system is used for triggering a remote alarm, notifying a prisoner or a related organization, monitoring an indoor prisoner to remotely monitor an examination scene through a monitoring screen, and checking the warning and the data generated by the system in real time. They can take appropriate action such as communicating with the in-classroom inspector or triggering further inspections;
a control unit for controlling and adjusting the instruction priority, which is a control pcb board 4 arranged inside the camera 3, and which can control and adjust the proctor priority of the examinee, according to predefined rules and policies, to automatically take measures, such as stopping the examination, issuing a remote alarm or triggering a notification to the proctor;
according to the structure, the camera 3 can be used for detecting the examination, during the detection, the examination can be detected by the examinee, and the hand actions and other aspects of the examination examinee can be detected, and three lamps, namely a green lamp, a yellow lamp and a red lamp, are arranged on the table top of the examinee and in a monitoring room, and are normally lighted, once the hand of the examinee has a prompting or implication action, the yellow lamp is lighted, if the yellow lamp is lighted for 5 seconds, the action of the examinee still does not stop, the red lamp is lighted, once the red lamp is lighted, the examinee is reminded and whether the examination is unqualified or not by the examinee, and once the action of the examinee has an obvious prompting action, the examinee is directly skipped to shake, and is lighted instead of being lighted;
a temporary power supply is arranged on the inner side of the camera 3, and a power supply conversion structure is arranged between the base plate 2 and the camera 3 and on the inner side of the mounting frame 1;
when an examiner or examinee suddenly kicks a plug of the camera 3 to disconnect power from an external power supply in an examination, the pcb 4 can be controlled to be connected with the temporary power supply, so that the pcb 4 is controlled to control the temporary power supply to supply power to the camera 3, the power-off protection of the camera 3 is realized, the camera 3 is reduced or even prevented from suddenly loosening due to the plug, the examination room cannot be monitored for a long time, and the use effect of the camera 3 is ensured;
the power conversion structure comprises a memory conductive metal 13 fixed at one end of the camera 3 close to the mounting frame 1;
the memory metal is a prior art, and is a special metal material which can recover the original macroscopic shape in another temperature range after plastic deformation in a certain temperature range. The critical temperature at which shape transformation occurs is called the "transformation temperature", also called the "phase transition temperature". The shape of the memory metal is called a 'low temperature phase' when in an environment below the phase transition temperature, and the shape of the memory metal is called a 'high temperature phase' when in an environment above the phase transition temperature;
the inside sliding connection of the installation frame 1 has the sliding column 14, the one end that the sliding column 14 is close to the memory conductive metal 13 is provided with the connection piece 15, the connection piece 15 is the metal material, can be specifically the copper material, its conductivity is stronger, can furthest provide the electric energy for the memory conductive metal 13, between bottom plate 2 and connection piece 15 and lie in the outside of sliding column 14 still be provided with the second spring 17, the outside of connection piece 15 is connected with the connecting wire 18, and connecting wire 18 links to each other with external power supply, the connection piece 15 is close to the laminating of one side of sliding column 14 and is provided with an insulating sheet 16, and sliding column 14 and second spring 17 all contact with insulating sheet 16, through this kind of setting, make insulating sheet 16 can separate the electric current between memory conductive metal 13 and the connection piece 15, thereby guaranteed that the electric current can not appear leaking the condition;
according to the above structure, when the camera 3 is mounted inside the mounting frame 1, the memory conductive metal 13 mounted on the camera 3 is contacted with the connecting sheet 15 and is connected with an external power supply through the connecting wire 18, and then the connecting sheet 15 is not contacted with the memory conductive metal 13 through the contact of the connecting sheet 15, and when the temperature in a classroom is too high due to the reasons of air conditioning or personnel concentration and the like, the memory conductive metal 13 can be deformed, at the moment, the memory conductive metal 13 stretches and enables the surface contacted with the connecting sheet 15 to be far away from the connecting sheet 15, at the moment, due to the arrangement of the second spring 17, the connecting sheet 15 can gradually move towards the direction of the memory conductive metal 13 through the elasticity of the second spring 17, when the temperature reaches a certain threshold value, after the memory conductive metal 13 is far away from the connecting sheet 15, the elasticity and the length of the second spring 17 enable the connecting sheet 15 to not to move to be contacted with the memory conductive metal 13, at the moment, the memory conductive metal 13 is separated from the connecting sheet 15, the camera 3 is separated from the electric energy of the external power supply, and the temporary power supply of the camera is used until the indoor temperature is reduced to the temperature, and the memory conductive metal 13 is contacted with the connecting sheet 15 again through the connecting wire 18 and the connecting sheet 3 again;
the pcb 4 is controlled to have a circuit management function, a temporary power supply and a direct charging function, when the memory conductive metal 13 is connected with an external power supply, the external power supply supplies power to the camera 3 and charges the temporary power supply, and when the connecting piece 15 is not connected with the external power supply, the temporary power supply supplies power to the camera 3, which is a relatively mature technology in the prior art, and detailed description is omitted herein;
a plurality of screws 19 are screwed at the edge position of the bottom plate 2, and the bottom plate 2 is connected with a wall body or other connecting components through the screws 19.
Example 2:
further technical improvements of this embodiment are made on the basis of embodiment 1, and the technical structure and effects thereof are as follows:
referring to fig. 5 to 8, a plurality of clamping bodies 8 are provided at the inner side of the installation frame 1, and the clamping bodies 8 include a connection frame 81, a clamping bar 82 and a third spring 83;
the connecting frame 81 is connected with the mounting frame 1, the clamping strip 82 is connected to the inner side of the connecting frame 81 in a sliding manner, the end part of the clamping strip 82, which is far away from the connecting frame 81, is arc-shaped, the third spring 83 is fixed to the inner side of the connecting frame 81, one end of the third spring 83 is connected with the end part of the connecting frame 81, and the other end of the third spring 83 is connected with the clamping strip 82;
the camera 3 is provided with first guide grooves 5 which are the same in number and correspond to the clamping bodies 8 in position at the outer side, one end of each first guide groove 5 is arranged at the end part of the camera 3, the other end of each first guide groove 5 is positioned at the outer side of the camera 3, a second guide groove 6 extends out, the second guide groove 6 is obliquely arranged on the camera 3, one end of the second guide groove 6, which is far away from the first guide groove 5, is positioned at the outer side of the camera 3, a third guide groove 7 extends out, and arc-shaped included angles are formed among the first guide grooves 5, the second guide grooves 6 and the third guide grooves 7, so that the clamping phenomenon is avoided when the clamping strip 82 contacts and slides;
the camera 3 is provided with a limit deep groove 71 at the inner side of the third guide groove 7, the depth of the limit deep groove 71 is larger than that of the third guide groove 7, the depth of the connecting frame 81 is at least 8-15MM larger than that of the third guide groove 7, the limit deep groove 71 can lock the clamping strip 82, the clamping strip 82 cannot be separated from the limit of the limit deep groove 71, and the clamping strip 82 is in sliding connection with the first guide groove 5, the second guide groove 6, the third guide groove 7 and the limit deep groove 71;
according to the above description, when the camera 3 is mounted, each first guide groove 5 can be aligned with the corresponding clamping body 8, and then the clamping strip 82 slides inside the first guide groove 5, the second guide groove 6 and the third guide groove 7, so that the clamping strip 82 finally slides inside the limiting deep groove 71, thereby realizing the clamping state of the camera 3.
The distance between the two clamping bodies 8 is larger than the distance between the two clamping bodies 8 in the field, so that the camera 3 can only move the corresponding clamping bodies 8 to the inner side of the same first guide groove 5, and when the clamping strip 82 reaches the position of the limit deep groove 71, the camera 3 is in a stable front view state, and the situation of lens deflection is avoided;
the inner side of the limit deep groove 71 is provided with a disengaging mechanism for driving the clamping strip 82 to disengage from the limit deep groove 71.
Referring to fig. 8, the disengaging mechanism includes a sliding rod 9 which is transversely connected to the inner side of the camera 3 in a sliding manner, a blocking piece 10 is fixed at one end of the sliding rod 9 close to the clamping strip 82, inclined surfaces 11 are arranged on two sides of the upper portion of the blocking piece 10, the inclined surfaces 11 are used for providing good thrust for the clamping strip 82, the inclined surfaces 11 are matched with the height of the clamping strip 82, protruding points are arranged on the outer surfaces of the two inclined surfaces 11, when the clamping strip 82 moves, the blocking piece 10 and the inclined surfaces 11 can be driven to move until the blocking piece 10 is limited by a first spring 12 or reaches the inner side of a close-fitting groove 72, the blocking piece 82 can move on the inclined surfaces 11 through a movement force overcoming friction force, a blocking piece is arranged on the outer side of the sliding rod 9, a first spring 12 is arranged between the blocking piece and the camera 3 and is arranged on the outer side of the sliding rod 9, the side of the limiting groove 71 close-fitting groove 72 is arranged on one side of the third guide groove 7, the close-fitting groove 72 is matched with the blocking piece 10, when the clamping strip 82 drives the blocking piece 10 to move towards the third guide groove 7, and the blocking piece 10 can not move to the third guide groove 7 in the guide groove 7, and the sliding slot 7 can be smoothly blocked from the inner side of the clamping groove 7 to the guide groove 7;
according to the above description, when the camera 3 needs to be moved to the outside of the mounting frame 1, the camera 3 may be continuously pressed, and then the clamping strip 82 contacts with the inclined surface 11 on the blocking block 10, when the camera 3 moves, the clamping strip 82 may gradually retract toward the inside of the connecting frame 81 through the arrangement of the inclined surface 11 until the clamping strip 82 moves to the other side of the blocking block 10 and stretches out to the outside of the connecting frame 81 again through the third spring 83, at this time, the user may hear the "click" made by crossing the blocking block 10, at this time, the camera 3 may be pulled to the outside, and then the inclined surface 11 on the camera 3 may be blocked by the clamping strip 82 to move toward the direction close to the third guiding groove 7 until the blocking block 10 contacts with the camera 3 at the third guiding groove 7, and the clamping strip 82 may return to the inside of the third guiding groove 7, and the user may directly screw the camera 3 until the clamping strip 82 moves from the inside of the second guiding groove 6 and the first guiding groove 5.
It should be noted that the above is only one of the solutions of the present application, and the clamping body 8 may be completely assembled to the camera head 3, and the first guide groove 5, the second guide groove 6, and the third guide groove 7 and the structures equipped therewith are assembled to the inner side of the mounting frame 1.
Example 3:
further technical improvements of this embodiment are made on the basis of embodiment 1 and embodiment 2, and the technical structure and effects thereof are as follows:
referring to fig. 9-10, a groove is formed in the inner side of the bottom plate 2, a plurality of second clamping blocks 24 are formed in the inner side of the groove, a rotating ring piece 20 is mounted on the inner side of the groove and located on the inner side of the second clamping blocks 24, at least one first clamping block 23 corresponding to the second clamping blocks 24 is arranged on the outer side of the rotating ring piece 20, the first clamping block 23 and the second clamping block 24 are opposite, so that the first clamping block 23 can rotate on the second clamping block 24 when the screw 19 is screwed down, and the second clamping block 24 can be clamped down when the screw 19 is unscrewed, so that the rotation of the screw 19 is limited, the first clamping block 23 is made of rubber, and the first clamping block 23 can deform when the screw 19 is screwed down, and the deformation effect can not be directly separated from a clamping state between the first clamping block 24 and the second clamping block 24 when the screw 19 is unscrewed;
a synchronous structure is arranged between the rotating ring piece 20 and the screw 19, the synchronous structure is used for enabling the screw 19 and the rotating ring piece 20 to synchronously rotate, and a blocking structure is further arranged on the inner side of the groove and used for blocking the rotating ring piece 20 from being separated from the groove.
Further, the synchronous structure comprises two limiting blocks 21 arranged on the inner side of the rotating ring piece 20, limiting grooves 22 are formed in the outer side of the screw 19 and located at positions corresponding to the limiting blocks 21, the limiting blocks 21 are located on the inner sides of the limiting grooves 22, when the screw 19 is screwed on the bottom plate 2, the limiting grooves 22 can be aligned with the limiting blocks 21 first, when the screw 19 rotates, the limiting blocks 21 can be directly driven to rotate through the limiting grooves 22, and further the limiting blocks 21 and the rotating ring piece 20 are driven to rotate when the screw 19 rotates.
Referring to fig. 11-12, the blocking structure further includes a connection guide rod 25 disposed at the inner side of the groove, the connection guide rod 25 is close to one end of the rotary ring piece 20 and is disposed at the inner side and the outer side of the rotary ring piece 20, the inner side of the rotary ring piece 20 is provided with a mounting groove 27 corresponding to the protrusion 26, the connection guide rod 25 and the protrusion 26 are made of soft materials, the connection guide rod 25 and the protrusion 26 can be made of rubber or other materials, when the rotary ring piece 20 is mounted at the inner side of the protrusion 26, the connection guide rod can be directly inserted into the groove, when the rotary ring piece 20 needs to be removed, the rotary ring piece 20 can be pulled out by force, and the protrusion 26 is deformed, so that the rotary ring piece 20 can be moved to the outer side of the groove.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (7)
1. An induction alarm system for preventing cheating in an examination, comprising a mounting frame (1), characterized in that: one side of the installation frame (1) is provided with a bottom plate (2), and the inner side of the installation frame (1) is also provided with:
the detection unit is a camera (3), the camera (3) is arranged on the inner side of the installation frame (1), the camera (3) at least partially extends to the outer side of the installation frame (1), and the camera (3) is used for capturing videos or pictures of examination scenes;
a processing unit for processing image or video data acquired from the camera (3), the processing unit being a processing chip provided inside the camera (3);
a detection subsystem for analyzing the image data;
an indication system for alerting and indicating the test taker;
a remote monitoring system for triggering a remote alarm notifying a prisoner or a related institution;
the control unit is used for controlling and adjusting the indication priority, and is a control pcb (4) arranged inside the camera (3);
a temporary power supply is arranged on the inner side of the camera (3), and a power supply conversion structure is arranged between the base plate (2) and the camera (3) and positioned on the inner side of the mounting frame (1);
the power conversion structure comprises a memory conductive metal (13) fixed at one end of the camera (3) close to the mounting frame (1), a sliding column (14) is connected inside the mounting frame (1) in a sliding mode, a connecting sheet (15) is arranged at one end of the sliding column (14) close to the memory conductive metal (13), a second spring (17) is arranged between the bottom plate (2) and the connecting sheet (15) and located at the outer side of the sliding column (14), a connecting wire (18) is connected to the outer side of the connecting sheet (15), and the connecting wire (18) is connected with an external power supply;
a plurality of screws (19) are connected at the edge position of the bottom plate (2) in a threaded manner, and the bottom plate (2) is connected with a wall body through the screws (19);
a plurality of clamping bodies (8) are arranged on the inner sides of the mounting frames (1), and the clamping bodies (8) comprise a connecting frame (81), clamping strips (82) and third springs (83);
the connecting frame (81) is connected with the mounting frame (1), the clamping strip (82) is connected to the inner side of the connecting frame (81) in a sliding manner, the third spring (83) is fixed to the inner side of the connecting frame (81), one end of the third spring (83) is connected with the end part of the connecting frame (81), and the other end of the third spring is connected with the clamping strip (82);
the camera comprises a camera body (3), wherein the outer side of the camera body (3) is provided with first guide grooves (5) which are the same as the clamping bodies (8) in number and correspond to each other in position, one end of each first guide groove (5) is arranged at the end part of the camera body (3), the other end of each first guide groove (5) is positioned at the outer side of the camera body (3) and extends out of a second guide groove (6), the second guide grooves (6) are obliquely arranged on the camera body (3), and the second guide grooves (6) are far away from one end of each first guide groove (5) and are positioned at the outer side of the camera body (3) and extend out of a third guide groove (7);
the camera (3) is positioned at the inner side of the third guide groove (7) and is provided with a limit deep groove (71), the depth of the limit deep groove (71) is larger than that of the third guide groove (7), the clamping strip (82) is in sliding connection with the first guide groove (5), the second guide groove (6), the third guide groove (7) and the limit deep groove (71), the inner side of the limit deep groove (71) is provided with a disengaging mechanism, and the disengaging mechanism is used for driving the clamping strip (82) to be disengaged from the limit deep groove (71);
the utility model provides a camera, including horizontal sliding connection in slide bar (9) of camera (3) inboard, slide bar (9) be close to one end of card strip (82) is fixed with block piece (10), just block both sides on piece (10) upper portion and all be provided with inclined plane (11), just inclined plane (11) with the high looks adaptation of card strip (82), the outside of slide bar (9) is provided with one and blocks the piece, just block between piece with camera (3) and be located the outside of slide bar (9) is provided with first spring (12), limit deep groove (71) are close to one side of third guide way (7) is provided with tight laminating groove (72), just hug closely and close groove (72) with block piece (10) looks adaptation.
2. An inductive alert system for preventing cheating in an examination as recited in claim 1, wherein: a groove is formed in the inner side of the bottom plate (2), a plurality of second clamping blocks (24) are arranged on the inner side of the groove, a rotating ring piece (20) is arranged on the inner side of the second clamping blocks (24), and at least one first clamping block (23) corresponding to the second clamping blocks (24) is arranged on the outer side of the rotating ring piece (20);
a synchronous structure is arranged between the rotating ring piece (20) and the screw rod (19), the synchronous structure is used for enabling the screw rod (19) and the rotating ring piece (20) to synchronously rotate, a blocking structure is further arranged on the inner side of the groove, and the blocking structure is used for blocking the rotating ring piece (20) from being separated from the groove.
3. An inductive alert system for preventing cheating in an examination as recited in claim 2, wherein: the synchronous structure comprises two limiting blocks (21) arranged on the inner side of the rotating ring piece (20), limiting grooves (22) are formed in the outer side of the screw rod (19) and located at positions corresponding to the limiting blocks (21), and the limiting blocks (21) are located on the inner sides of the limiting grooves (22).
4. An inductive alert system for preventing cheating in an examination as recited in claim 2, wherein: the blocking structure comprises a connecting guide rod (25) arranged on the inner side of the groove, the connecting guide rod (25) is close to one end of the rotating ring piece (20) and is positioned on the inner side and the outer side of the rotating ring piece (20), a protruding block (26) is arranged on the inner side of the rotating ring piece (20), and a mounting groove (27) corresponding to the protruding block (26) is formed in the inner side of the rotating ring piece.
5. An inductive alert system for preventing cheating in an examination as recited in claim 1, wherein: an insulating sheet (16) is attached to one side of the connecting sheet (15) close to the sliding column (14), and the sliding column (14) and the second spring (17) are both in contact with the insulating sheet (16).
6. An inductive alert system for preventing cheating in an examination as recited in claim 1, wherein: salient points are arranged on the outer surfaces of the two inclined planes (11).
7. An inductive alert system for preventing cheating in an examination as recited in claim 4, wherein: the connecting guide rod (25) and the protruding block (26) are made of soft materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311467804.8A CN117221519B (en) | 2023-11-07 | 2023-11-07 | Induction alarm system for preventing cheating in examination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311467804.8A CN117221519B (en) | 2023-11-07 | 2023-11-07 | Induction alarm system for preventing cheating in examination |
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| CN117221519A CN117221519A (en) | 2023-12-12 |
| CN117221519B true CN117221519B (en) | 2024-01-30 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007336173A (en) * | 2006-06-14 | 2007-12-27 | Fujifilm Corp | Imaging part cleaning mechanism |
| CN204795296U (en) * | 2015-07-10 | 2015-11-18 | 河南铭视安防工程有限公司 | Network security protection camera |
| CN205283717U (en) * | 2015-12-08 | 2016-06-01 | 深圳伊安视科技有限公司 | But remote control watch -dog |
| WO2017120711A1 (en) * | 2016-01-11 | 2017-07-20 | 汤美 | Examination anti-cheating system |
| CN110909722A (en) * | 2019-12-26 | 2020-03-24 | 温州鑫锐翔科技有限公司 | Anti-cheating camera based on target action detection |
| CN112942565A (en) * | 2021-01-26 | 2021-06-11 | 朱朱 | A reinforced concrete prefabricated component for building |
| CN213518567U (en) * | 2020-07-29 | 2021-06-22 | 哈尔滨爱特诺科技有限公司 | Campus security device |
| CN113114910A (en) * | 2021-04-23 | 2021-07-13 | 维沃移动通信有限公司 | Imaging device and electronic apparatus |
| CN113642507A (en) * | 2021-08-26 | 2021-11-12 | 湖南强视信息科技有限公司 | Examination monitoring method, system, equipment and medium based on multi-camera one-person detection |
| KR20220074468A (en) * | 2020-11-27 | 2022-06-03 | 주식회사 잇올 | System for online test cheating prevention and method thereof |
| CN216737349U (en) * | 2021-11-25 | 2022-06-14 | 河北华丰能源科技发展有限公司 | Auxiliary guiding device suitable for grooved pulley threading |
| CN115035473A (en) * | 2022-06-21 | 2022-09-09 | 广州市奥威亚电子科技有限公司 | Examination room monitoring method, device and system |
| CN115589683A (en) * | 2022-08-31 | 2023-01-10 | Oppo广东移动通信有限公司 | Self-locking mechanism, shell and electronic equipment |
| WO2023280267A1 (en) * | 2021-07-07 | 2023-01-12 | 厦门倍杰特科技有限公司 | Linkage-type toilet support clamping mechanism, toilet seat cover plate connecting assembly, and toilet seat cover plate |
-
2023
- 2023-11-07 CN CN202311467804.8A patent/CN117221519B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007336173A (en) * | 2006-06-14 | 2007-12-27 | Fujifilm Corp | Imaging part cleaning mechanism |
| CN204795296U (en) * | 2015-07-10 | 2015-11-18 | 河南铭视安防工程有限公司 | Network security protection camera |
| CN205283717U (en) * | 2015-12-08 | 2016-06-01 | 深圳伊安视科技有限公司 | But remote control watch -dog |
| WO2017120711A1 (en) * | 2016-01-11 | 2017-07-20 | 汤美 | Examination anti-cheating system |
| CN110909722A (en) * | 2019-12-26 | 2020-03-24 | 温州鑫锐翔科技有限公司 | Anti-cheating camera based on target action detection |
| CN213518567U (en) * | 2020-07-29 | 2021-06-22 | 哈尔滨爱特诺科技有限公司 | Campus security device |
| KR20220074468A (en) * | 2020-11-27 | 2022-06-03 | 주식회사 잇올 | System for online test cheating prevention and method thereof |
| CN112942565A (en) * | 2021-01-26 | 2021-06-11 | 朱朱 | A reinforced concrete prefabricated component for building |
| CN113114910A (en) * | 2021-04-23 | 2021-07-13 | 维沃移动通信有限公司 | Imaging device and electronic apparatus |
| WO2023280267A1 (en) * | 2021-07-07 | 2023-01-12 | 厦门倍杰特科技有限公司 | Linkage-type toilet support clamping mechanism, toilet seat cover plate connecting assembly, and toilet seat cover plate |
| CN113642507A (en) * | 2021-08-26 | 2021-11-12 | 湖南强视信息科技有限公司 | Examination monitoring method, system, equipment and medium based on multi-camera one-person detection |
| CN216737349U (en) * | 2021-11-25 | 2022-06-14 | 河北华丰能源科技发展有限公司 | Auxiliary guiding device suitable for grooved pulley threading |
| CN115035473A (en) * | 2022-06-21 | 2022-09-09 | 广州市奥威亚电子科技有限公司 | Examination room monitoring method, device and system |
| CN115589683A (en) * | 2022-08-31 | 2023-01-10 | Oppo广东移动通信有限公司 | Self-locking mechanism, shell and electronic equipment |
Non-Patent Citations (2)
| Title |
|---|
| Self-selecting share threshold multi-secret sharing scheme;Yin Feng-mei;Journal of Computer Applications;全文 * |
| 致统计专业资格考试应试人员;刘立强;中国统计;全文 * |
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| CN117221519A (en) | 2023-12-12 |
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