Face recognition entrance guard capable of automatically changing recognition height
Technical Field
The utility model relates to a face identification technical field specifically is a face identification entrance guard that can change the discernment height automatically.
Background
In recent years, with the development of the inductive card technology and the biometric identification technology, the access control system has been developed in a leap manner, and has entered the mature period, systems of various technologies such as an inductive card type access control system, a fingerprint type access control system, an iris type access control system, a face identification type access control system and the like have appeared, and the systems have respective advantages in the aspects of safety, convenience, manageability and the like, and the application field of the access control system is also becoming wider and wider.
However, the face recognition entrance guard in the current market is fixed in position in the using process, the recognition height is difficult to change automatically according to the height condition of a user, inconvenience is brought to the use of the user with different heights, the existing face recognition entrance guard also has the problem that the dismounting is inconvenient when the later-stage maintenance is carried out, and therefore the face recognition entrance guard capable of automatically changing the recognition height is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can change face identification entrance guard of discernment height automatically to solve the face identification entrance guard on the existing market that proposes in the above-mentioned background art in the use, the rigidity is motionless, is difficult to change the discernment height according to user's height condition is automatic, has brought inconvenience for different height user's use, and current face identification entrance guard still exists when later stage maintenance, the inconvenient problem of dismouting.
In order to achieve the above object, the utility model provides a following technical scheme: a face recognition entrance guard capable of automatically changing recognition height comprises a face recognition structure, a motor and a panel, wherein clamping plates are arranged on the left side and the right side of the face recognition structure, a back plate is arranged at the rear side of the face recognition structure, a second photoelectric sensor is fixed at the middle position above the back plate, and the rear side of the back plate is provided with a ball sliding table, the inside of the ball sliding table is connected with a screw rod, the rear side of the screw rod is provided with a bottom plate, the motor is fixed at the upper end of the screw rod, the right lower corner of the motor is connected with a controller, the front surface of the bottom plate is fixed with a first photoelectric sensor, the panels are respectively arranged on the front surfaces of the left side and the right side of the bottom plate, and the four corners of panel are fixed with fixing bolt, the rear side of splint is fixed with the slider, the spring is all installed to the inside left and right sides of backplate, and the outside of spring is fixed with the round bar.
Preferably, the inner wall of the splint is connected with a cushion, and the splint is bilaterally symmetrical about the vertical center line of the face recognition structure.
Preferably, the clamping plate and the back plate form an elastic structure through a spring and a round rod, and the round rod penetrates through the inside of the back plate.
Preferably, the second photoelectric sensor and the first photoelectric sensor are both connected with the controller through wires, and the controller is electrically connected with the motor.
Preferably, the ball sliding table is in threaded connection with the screw rod, and the screw rod and the motor are matched with each other to form a rotating structure.
Preferably, the inner wall of the panel is provided with a sliding groove, and the sliding block forms a sliding structure with the panel through the sliding groove.
Preferably, the number of the fixing bolts is 4, and the fixing bolts penetrate through the inner parts of the panel and the bottom plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the face recognition entrance guard capable of automatically changing the recognition height is provided with the cushion which is separated between the clamping plate and the face recognition structure, the cushion is made of elastic silica gel materials, the abrasion of the outer wall of the face recognition structure can be reduced, the stability of clamping and fixing of the clamping plate is enhanced by the elastic action of the spring, the face recognition structure can be conveniently detached from the clamping plate by the structure, and convenience is provided for later-stage disassembly and maintenance;
2. the first photoelectric sensor and the second photoelectric sensor are arranged to sense human body information, the controller controls the motor to rotate forward and backward to drive the face recognition structure to move up and down, so that a user can conveniently recognize the face, the recognition height can be automatically changed according to the height condition of the user, convenience is brought to the use of users with different heights, and the practicability is high;
3. the setting is when the lead screw rotates, the ball slip table can reciprocate along the lead screw, realize the regulation of face identification structure height, and the transmission of ball slip table and lead screw is mild, and stability is higher, and is safe in utilization, set up the reciprocating action that the slider can assist the ball slip table, be favorable to further improving driven stability between ball slip table and the lead screw, it carries out fixed connection through fixing bolt to set up between panel and the bottom plate, easy dismounting, the maintenance is dismantled in the later stage of being convenient for.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the cross-sectional structure of the present invention;
FIG. 3 is a schematic view of a partial structure of the joint between the spring and the round bar of the present invention;
fig. 4 is a flow chart of the present invention.
In the figure: 1. a face recognition structure; 2. a splint; 3. a back plate; 4. a second photosensor; 5. a ball sliding table; 6. a screw rod; 7. a base plate; 8. an electric motor; 9. a controller; 10. a first photosensor; 11. a panel; 12. fixing the bolt; 13. a slider; 14. a spring; 15. a round bar; 16. a soft cushion.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a face recognition entrance guard capable of automatically changing recognition height comprises a face recognition structure 1, a clamping plate 2, a back plate 3, a second photoelectric sensor 4, a ball sliding table 5, a screw rod 6, a bottom plate 7, a motor 8, a controller 9, a first photoelectric sensor 10, a panel 11, a fixing bolt 12, a sliding block 13, a spring 14, a round rod 15 and a cushion 16, wherein the clamping plate 2 is arranged on the left side and the right side of the face recognition structure 1, the back plate 3 is arranged on the rear side of the face recognition structure 1, the second photoelectric sensor 4 is fixed at the middle position above the back plate 3, the ball sliding table 5 is arranged on the rear side of the back plate 3, the ball sliding table 5 is connected with the screw rod 6 inside, the bottom plate 7 is arranged on the rear side of the screw rod 6, the motor 8 is fixed at the upper end of the screw rod 6, the controller 9 is connected with the lower right corner of the motor 8, and the, the screw rod 6 and the motor 8 are matched with each other to form a rotating structure, the ball sliding table 5 is connected with the screw rod 6 through a thread effect, so that when the screw rod 6 rotates, the ball sliding table 5 can move up and down along the screw rod 6, the height of the face recognition structure 1 is adjusted, the transmission between the ball sliding table 5 and the screw rod 6 is smooth, the stability is high, and the use is safe;
the front side of the bottom plate 7 is fixed with a first photoelectric sensor 10, the second photoelectric sensor 4 and the first photoelectric sensor 10 are connected with a controller 9 through leads, the connection mode between the controller 9 and the motor 8 is electrical connection, the second photoelectric sensor 4, the first photoelectric sensor 10, the controller 9 and the motor 8 are arranged to be matched with each other, so that when the first photoelectric sensor 10 senses human body information and the second photoelectric sensor 4 cannot sense the human body information, the situation that the position of the face recognition structure 1 is too high and the height of a user is low is shown, at the moment, the controller 9 controls the motor 8 to drive the face recognition structure 1 to move downwards, the face recognition of the user is facilitated, the face recognition is facilitated, the automatic change of the recognition height according to the height condition of the user is facilitated, the convenience is brought to the use of users with different heights, and the practicability is strong, the panel 11 is respectively installed on the front of the left side and the right side of the bottom plate 7, and the four corners of the panel 11 are fixedly provided with the fixing bolts 12, the number of the fixing bolts 12 is set to be 4, the fixing bolts 12 penetrate through the panel 11 and the bottom plate 7, the panel 11 and the bottom plate 7 are fixedly connected through the fixing bolts 12, the disassembly and the assembly are convenient, the later-stage disassembly and maintenance are convenient, the sliding block 13 is fixed on the rear side of the clamping plate 2, the inner wall of the panel 11 is provided with a sliding groove, the sliding block 13 forms a sliding structure with the panel 11 through the sliding groove, and the sliding block 13 can slide along the inner wall of the panel 11 so as to assist the up-and-down movement of the ball sliding table 5 and further improve the transmission stability;
the spring 14 is arranged on the left side and the right side inside the backboard 3, the round rod 15 is fixed on the outer side of the spring 14, the splint 2 forms an elastic structure with the backboard 3 through the spring 14 and the round rod 15, the round rod 15 penetrates through the backboard 3, the spring 14 and the round rod 15 are arranged to be connected between the splint 2 and the backboard 3, so that the two splint 2 are tensioned reversely by utilizing the elastic action of the spring 14, the clamping and fixing stability of the splint 2 is enhanced, the face recognition structure 1 is convenient to detach from the splint 2 by the structure, convenience is provided for later-stage dismounting and maintenance, the inner wall of the splint 2 is connected with the cushion 16, the splint 2 is symmetrical left and right relative to the vertical central line of the face recognition structure 1, the two splint 2 are arranged to clamp and fix the face recognition structure 1, and in the clamping process, the cushion 16 is used for separating between the splint 2 and the face recognition structure 1, the soft cushion 16 is made of elastic silica gel, so that severe friction between the clamping plate 2 and the face recognition structure 1 can be avoided, and abrasion of the outer wall of the face recognition structure 1 is reduced.
The working principle is as follows: for the face recognition entrance guard with the automatic recognition height changing function, firstly, the bottom plate 7 is buckled inside a door plate needing to be provided with the face recognition entrance guard, then the fixing bolt 12 is screwed, the fixing bolt 12 penetrates through the panel 11 and the bottom plate 7 and is screwed into the door plate for integral fixation, after the whole device is powered on, the first photoelectric sensor 10 and the second photoelectric sensor 4 with the models of E3ZG-D62-S start to work, the first photoelectric sensor 10 and the second photoelectric sensor 4 transmit detected information to the controller 9 with the model of AT89C52, and the controller 9 analyzes and processes the information;
when the first photosensor 10 detects the human body information, but the second photosensor 4 does not detect the human body information, the controller 9 controls the motor 8 to rotate clockwise, the motor 8 drives the screw rod 6 to rotate clockwise, the ball sliding table 5 moves downwards along the screw rod 6 to drive the clamping plate 2, the back plate 3 and the face recognition structure 1 to move downwards, meanwhile, the sliding block 13 is driven to move downwards along the sliding groove on the inner wall of the panel 11, when the first photoelectric sensor 10 and the second photoelectric sensor 4 both detect the human body information, the controller 9 controls the motor 8 to be closed, the face recognition structure 1 keeps still, when the first photoelectric sensor 10 and the second photoelectric sensor 4 do not detect the human body information, the controller 9 controls the motor 8 to rotate reversely, and the ball sliding table 5 drives the clamping plate 2, the back plate 3 and the face recognition structure 1 to move upwards to return to the initial positions;
when needs dismantle the maintenance to face identification structure 1, unscrew each fixing bolt 12 earlier, pull down panel 11 from backplate 3 again, two splint 2 of outside pulling respectively again, splint 2 drives round bar 15 and stretches out from backplate 3 is inside, spring 14 is elongated simultaneously, until taking place the separation between cushion 16 and the face identification structure 1, can follow face identification structure 1 and take off between splint 2, just so accomplish whole face identification entrance guard's that can the automatic change discernment height use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.