CN210166795U

CN210166795U - Face recognition device of self-adaptation height

Info

Publication number: CN210166795U
Application number: CN201920946722.4U
Authority: CN
Inventors: 邹健为; 朱家岳; 张克军
Original assignee: Shanghai Ling Technology Co Ltd
Current assignee: Shanghai Ling Technology Co Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-03-20
Anticipated expiration: 2029-06-21

Abstract

The utility model relates to the technical field of face recognition, in particular to a face recognition device with self-adaptive height, which comprises a recognition control part, wherein the recognition control part comprises a recognition control circuit board and a camera component, and the recognition control part also comprises a driving component, and the driving component comprises a motor and an output shaft driven by the motor to rotate; the camera shooting assembly comprises a mounting frame and a camera arranged on the mounting frame, the mounting frame is connected with the output shaft in a matched mode, and the camera is driven to rotate up and down under the driving of the output shaft. The utility model utilizes the lens with rotatable angle, which is suitable for the face recognition of users with different heights; can cooperate with diversified tool to lock mechanical structure through compact exquisite structure, modular design and nimble mounting means.

Description

Face recognition device of self-adaptation height

Technical Field

The utility model relates to a face identification technical field particularly, relates to a face identification device of self-adaptation height.

Background

Along with the development of society and the progress of science and technology, the lock field also gradually combines with high technology now, has replaced the structure that traditional key unblanked, has appeared the biological identification lock of face identification class for people's house security has had very big improvement, and the camera that is used for discerning the people face in the current face identification lock is fixed angle, because the lock is installed on the door of entrying of family, and its height is fixed the change that is difficult to for after the installation. However, the height of a user using the door lock may vary greatly, so that the fixed camera is difficult to adapt to users with different heights, and the user often needs to bend down or foot pad to enter the lens which can be shot by the camera. According to investigation, the heights of users with the capability of independently opening the door are generally distributed between 1.2 m and 1.9m, and in order to better cover the height range, a new type of users capable of adapting to different heights is provided, however, the users generally adopt a method of controlling a camera with a fixed angle to move up and down to align with unlocking persons with different heights, and the translational track of the camera with the structure is long, inconvenient to install and easy to block and damage after long-term use.

On the other hand, the existing face recognition door lock mainly comprises a face recognition module with a software system and a mechanical structure part, the software system is high in research, development and updating difficulty and long in period, the face recognition module is large in size generally, and the installation scheme is single, so that the mechanical structure part matched with the face recognition module is single in structure, the overall structure scheme and the installation scheme of the door lock are difficult to be updated, and the market diversification requirements are difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a face recognition device with self-adaptive height, which solves the problems in the prior art, and is suitable for the face recognition of users with different heights by using a lens with a rotatable angle; can cooperate with diversified tool to lock mechanical structure through compact exquisite structure, modular design and nimble mounting means.

In order to achieve the above object, the utility model provides a face recognition device of self-adaptation height, this face recognition device includes the discernment control part, the discernment control part includes discernment control circuit board and camera module, the discernment control part still includes drive assembly, drive assembly includes motor and by the rotatory output shaft of motor drive; the camera shooting assembly comprises a mounting frame and a camera arranged on the mounting frame, the mounting frame is connected with the output shaft in a matched mode, and the camera is driven to rotate up and down under the driving of the output shaft.

Optionally, the camera is located the mounting bracket is positive, the mounting bracket side stretches out and is equipped with the output shaft hole, the output shaft matches and inserts the output shaft is downthehole and drive the mounting bracket rotates.

Optionally, the drive assembly further comprises a gear transmission system, the gear transmission system comprises a first gear and a second gear, and a gear shaft of the first gear is connected with the motor; the second gear is driven by the first gear, and the output shaft is a gear shaft of the second gear.

Optionally, the gear transmission system comprises a reversing gear, the reversing gear is a gear with the same front side and the same back side and is symmetrical by taking the middle surface of the gear disc as a central surface, and a circular arc-shaped first limiting groove and a circular arc-shaped second limiting groove which are concentric with the gear shaft of the gear disc are respectively arranged on two surfaces of the gear disc of the reversing gear; the symmetry axis of the first limiting groove and the symmetry axis of the second limiting groove are respectively a first symmetry axis and a second symmetry axis, the horizontal plane is used as a reference plane, an included angle formed by the first symmetry axis and the horizontal plane is a first limiting angle, an included angle formed by the second symmetry axis and the horizontal plane is a second limiting angle, and the first limiting angle is not completely equal to the second limiting angle.

Optionally, the driving assembly further comprises a gear box, the gear transmission system is mounted in the gear box, and a through hole is formed in the gear box and used for allowing a gear shaft of a gear in the gear transmission system to extend out; the gear box is inboard to cooperate the position of reversing gear stretches out spacing post, spacing post is installed when on the gear box, spacing post inserts first spacing groove or second spacing inslot, spacing post is along with reversing gear's rotation is in first spacing groove or the within range slip of second spacing groove.

Optionally, the reversing gear is the first gear or the second gear.

Optionally, still be equipped with angle sensor in the gear box, angle sensor is last to be equipped with bayonet socket and wiring mouth, the gear shaft matching of the gear shaft of first gear or second gear inserts in the bayonet socket, and drive angle sensor rotates.

Optionally, the gear box is long, the gear trains are sequentially arranged in the gear box in a mutually meshed manner, and the first gear is located at the extreme end of the gear train; the gear box and the motor are mutually perpendicular and in an L shape, and the output shaft extends out of one surface of the gear box, which faces the motor.

Optionally, the identification control part is further provided with a mounting box, the mounting box comprises a window at the upper end of the side surface and a U-shaped mounting cavity with three surfaces surrounding the window, and the L-shaped driving assembly is arranged at one corner of the mounting cavity and matched with the mounting cavity in shape; the camera shooting assembly is connected with the driving assembly, and the camera is exposed out of the window; the identification control circuit board is arranged above the camera shooting assembly.

Optionally, the emergency power supply further comprises a sound raising part, a sensing part, an emergency circuit part and a detachable battery power supply part.

As above, use the technical scheme of the utility model, the utility model provides a pair of face identification device of self-adaptation height compares with prior art, possesses following technological effect:

a more flexible, convenient and durable human face recognition height adaptation method. The utility model adopts a mode of rotationally driving the camera assembly which is different from the camera with a fixed angle in the prior art, thereby increasing the range of the camera in the up-down direction, and compared with the mode of translating the camera up and down by a large margin, the mode of rotating the camera does not need to separately erect a translation track, and the structure is more exquisite; and the action is simple, the structure is not easy to damage, and the human face in a larger height range can be captured only by rotating a limited angle when the distance is enough.

The integrated driving assembly of the angle sensor is fused, and the rotation in different directions can be realized. A gear transmission system and an angle sensor are integrated in the gear box, and the angle sensor is just driven to rotate by the same angle when the gear transmission system drives the camera shooting assembly to rotate, so that the rotation angle of the camera shooting assembly is accurately obtained. The first limiting groove and the second limiting groove on the reversing gear are respectively matched with the limiting columns and used for providing rotation at different angles, and the reversing gear can be installed at different heights according to requirements.

The layout scheme of the component type is convenient to disassemble and install in a separated mode. Divide into different group parts with the integrated device according to the function, when cooperating with other mechanical structure of lock, can set up in different positions according to the split of actual need, can make the lock structure form that finally forms diversified.

In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 schematically shows an exploded view of an identification control part in a face recognition device of the present invention;

fig. 2 schematically shows a perspective view of a mounting frame in the face recognition apparatus of the present invention;

fig. 3 schematically shows an exploded view of a driving assembly in the face recognition apparatus of the present invention;

fig. 4 schematically shows a front view of a first face of a reversing gear in the face recognition apparatus of the present invention;

fig. 5 schematically shows a front view of a second face of the reversing gear in the face recognition apparatus of the present invention;

fig. 6 schematically shows a partial perspective view of a gear box in the face recognition device of the present invention;

fig. 7 schematically shows an explosion diagram of the face recognition device of the present invention.

Detailed Description

The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to only those embodiments. On the contrary, the intention of implementing the novel features described in connection with the embodiments is to cover other alternatives or modifications which may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Furthermore, some of the specific details are omitted from the description so as not to obscure or obscure the present invention.

As shown in the figure, the embodiment of the utility model provides a face identification device of self-adaptation height, including identification control portion 1, identification control portion 1 includes identification control circuit board 11 and is used for carrying out the light filling and looking for, catching, location, the camera module 12 that the discernment image drawed to the people's face to user's head portrait. The camera shooting assembly 12 mainly comprises a mounting frame 121 and two cameras 122 arranged on the front surface of the mounting frame 121, and is further provided with a light supplement lamp 123, wherein a spotlight cover 124 is arranged on the mounting frame 121 and is matched with the light supplement lamp 123, an output shaft 132 hole 125 extends out of the side surface of the mounting frame 121, and a driven shaft 126 coaxial with the output shaft 132 hole 125 is arranged on the other side of the mounting frame 121; the driving assembly 13 is used for driving the camera assembly 12 to rotate up and down when searching for a human face, the driving assembly 13 mainly comprises a motor 131 for outputting power and an output shaft 132 driven by the motor 131, and the output shaft 132 and the motor 131 can be directly connected or indirectly connected through a transmission structure; the output shaft 132 is inserted into the hole 125 of the output shaft 132 in a matching manner and drives the mounting frame 121 to rotate around the hole 125 of the output shaft 132 and the driven shaft, so as to drive the camera 122 to rotate, and increase the shooting range and the face recognition range of the camera 122.

In other words, as long as the head height of the user is within the range of the lowest rotation angle and the highest rotation angle when the camera 122 is rotated, the head image thereof can be captured by the camera 122, and the face recognition can be rapidly realized without the user bending down or stepping up. The side face of the mounting frame 121 provided with the camera 122 is linked with the driving assembly 13, and when the mounting frame 121 is driven by the driving assembly 13 to rotate along the axial direction of the side face, the camera 122 on the front face of the mounting frame 121 also rotates along the vertical direction, and is matched with the height direction of a human body.

As a preferable scheme of the transmission of the driving assembly 13, the driving assembly 13 further comprises a gear transmission system, the gear transmission system comprises a first gear 133 and a second gear 134, and a gear shaft of the first gear 133 is connected with the motor 131; the second gear 134 is driven by the first gear 133, and the output shaft 132 is a gear shaft of the second gear 134. It should be noted that the first gear 133 and the second gear 134 are only two gears in the gear transmission system, and for better transmission or consideration of volume, length and other aspects, more gears may be disposed in the gear transmission system to be meshed with the first gear 133 and the second gear 134 according to actual needs.

A special gear, i.e., a reversing gear, different from the ordinary gear, is arranged in the gear transmission system, which can limit the maximum rotation angle of the camera 122, and also can change the rotatable angle range of the driving device in the device, and finally acts on the camera 122 to change the direction of the rotation range of the camera 122. The reversing gear is a gear with the same front side and the same back side which is symmetrical by taking the middle surface of the gear disc as a central surface, and the two surfaces of the gear disc of the reversing gear are respectively provided with a circular arc-shaped first limiting groove 141 and a circular arc-shaped second limiting groove 143 which are concentric with a gear shaft of the gear disc; the symmetry axes of the first limiting groove 141 and the second limiting groove 143 are respectively a first symmetry axis 142 and a second symmetry axis 144, the horizontal plane is used as a reference plane, an included angle formed by the first symmetry axis 142 and the horizontal plane is a first limiting angle, an included angle formed by the second symmetry axis 144 and the horizontal plane is a second limiting angle, and the first limiting angle is not completely equal to the second limiting angle. As a preferred gear of the reversing gear, the reversing gear is the first gear 133 or the second gear 134, so as to ensure that the reversing function of the reversing gear can be achieved without affecting other functions of the first gear 133 and the second gear 134.

In order to better protect the gear transmission system and achieve further transmission effect, the driving assembly 13 further includes a gear box 15, the gear transmission system is installed in the gear box 15, and a through hole 151 is formed in the gear box 15 for allowing a gear shaft of a gear in the gear transmission system to extend out; a limiting column 152 extends out of the inner side of the gear box 15 in a position matched with the reversing gear, when the limiting column 152 is installed on the gear box 15, the limiting column 152 is inserted into the first limiting groove 141 or the second limiting groove 143, and the limiting column 152 slides in the range of the first limiting groove 141 or the second limiting groove 143 along with the rotation of the reversing gear.

The first and second

limiting grooves

141 and 143 cooperate with the limiting post 152 to form a lead-limited fit, so that the camera module 12 can only rotate up and down within a predetermined angle range. Considering that the height range of the lock which can be unlocked by the face recognition is 1.2-1.9m and the installation height of the common face recognition door lock, the range of the first limiting angle is preferably set to be +15 degrees to-45 degrees, the range of the second limiting angle is preferably set to be +45 degrees to-15 degrees, and the head of the user in the height range can be ensured to be covered in the recognition range of the camera 122.

The two limiting angles provide two position directions in which the face recognition device can be installed, and the specific structure and the using method are as follows: the reversing gear is further provided with a positioning point, the positioning point is matched with the first limiting groove 141 and positioned on the same surface and is a first positioning point, and the positioning point is matched with the second limiting groove 143 and positioned on the same surface and is a second positioning point 146. When the first limiting groove 141 is installed towards the limiting column 152, the first locating point corresponds to a matching point on the gear box 15, and the limiting column 152 is inserted into the first limiting groove 141, so that the camera shooting component 12 rotates between +15 degrees and-45 degrees, and the situation at this time is suitable for inverted installation of the face recognition device. When the second positioning point 146 is corresponding to the matching point on the gear box 15 when the second limiting groove 143 is installed toward the limiting post 152, the limiting post 152 is inserted into the second limiting groove 143, so that the camera assembly 12 finally rotates between +45 degrees and-15 degrees, and the face recognition device is installed in a positive mode. The two modes of the upright installation and the inverted installation enable various structural schemes and external shapes to be designed when the door lock is considered to be matched with other structures of the door lock, and the diversity of the door lock is increased.

The angle of the steering of the camera 122 needs to be detected by the angle sensor 16, and in order to more accurately capture the steering angle, enhance the structural integrity and protect the angle sensor 16 from external damage, the angle sensor 16 is disposed in the gear box 15. The angle sensor 16 is provided with a bayonet 161 and a wiring port 162, the bayonet 161 is used for enabling a gear shaft of the first gear 133 or the second gear 134 to be inserted in a matching manner and driving the angle sensor 16 to rotate, the wiring port 162 can be connected with the identification control circuit board 11, and the detected rotation angle is sent to the control circuit board.

In the aspect of the setting assembly setting of subassembly, the utility model discloses some special settings have also been made for whole device compact structure is exquisite, and forms several relatively independent parts, conveniently separately installs and dismantles. Wherein:

the gear box 15 is long, the gear transmission systems are sequentially arranged in the gear box 15 in a mutually meshed manner, and the first gear 133 is positioned at the extreme end of the gear transmission systems; the gear box 15 and the motor 131 are perpendicular to each other and form a regular L shape, and the output shaft 132 extends from a surface of the gear box 15 facing the motor 131.

In addition, the identification control part 1 is further provided with a mounting box 17, the mounting box 17 comprises a window 171 at the upper end of the side surface and a U-shaped mounting cavity 172 surrounding the window 171 on three sides, and the L-shaped driving component 13 is arranged at one corner of the mounting cavity 172 and matched with the mounting cavity in shape, so as to achieve the highest space utilization rate; the camera assembly 12 is connected with the driving assembly 13, and the camera 122 is exposed out of the window 171 to avoid blocking of other structures; the recognition control circuit board 11 is arranged above the camera component 12, so that a face recognition device with the upper half part being the recognition control circuit board 11 and the lower half part being the camera component 12 and the driving component 13 is formed; in order to avoid damage and better fit with other components, a base plate 18 is also provided, which is adapted to the dimensions thereof.

Besides the above components, the utility model discloses in face recognition device of self-adaptation height still include loudspeaker portion 2, response portion 3, emergency circuit portion 4 and detachable battery power portion 5. The sound raising part 2 can be arranged on the side surface or the front surface of the front panel of the door lock, is connected to the induction part 3 through a connecting wire and is used for transmitting audio prompt information during face recognition; the induction part 3 can be arranged below the front panel of the door lock and is used for inducing and awakening the door lock and identifying the NFC door card by a human body; the battery power supply part 5 adopts a detachable scheme and a golden finger contact design, so that the use is convenient and the appearance is attractive; emergent circuit portion 4 mainly has emergent function and the lock system reset function of charging, and it can install in the lock bottom, adopts the connecting wire to link to each other with discernment control circuit board 11, and when battery power portion 5 appeared the electric quantity not enough and the user did not charge to it, the user can utilize the treasured that charges to connect this emergency circuit's the mouth that charges, waits to discern after the system starts to open the door.

To sum up, the above embodiments provided by the present invention are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A face recognition device adaptive to height comprises a recognition control part, wherein the recognition control part comprises a recognition control circuit board and a camera shooting assembly; the camera shooting assembly comprises a mounting frame and a camera arranged on the mounting frame, the mounting frame is connected with the output shaft in a matched mode, and the camera is driven to rotate up and down under the driving of the output shaft.

2. The face recognition apparatus as claimed in claim 1, wherein the camera is disposed on the front surface of the mounting frame, an output shaft hole is extended from the side surface of the mounting frame, and the output shaft is inserted into the output shaft hole in a matching manner and drives the mounting frame to rotate.

3. The face recognition apparatus of claim 2, wherein the drive assembly further comprises a gear train, the gear train comprising a first gear and a second gear, a gear shaft of the first gear being coupled to the motor; the second gear is driven by the first gear, and the output shaft is a gear shaft of the second gear.

4. The face recognition device according to claim 3, wherein the gear transmission system comprises a reversing gear, the reversing gear is a gear with the same front side and the same back side which is symmetrical by taking the middle surface of the gear disc as a central surface, and the two surfaces of the gear disc of the reversing gear are respectively provided with a first limiting groove and a second limiting groove which are concentric with the gear shaft and are in the shape of circular arcs; the symmetry axis of the first limiting groove and the symmetry axis of the second limiting groove are respectively a first symmetry axis and a second symmetry axis, the horizontal plane is used as a reference plane, an included angle formed by the first symmetry axis and the horizontal plane is a first limiting angle, an included angle formed by the second symmetry axis and the horizontal plane is a second limiting angle, and the first limiting angle is not completely equal to the second limiting angle.

5. The face recognition apparatus of claim 4, wherein the driving assembly further comprises a gear box, the gear transmission system is installed in the gear box, and a through hole is formed in the gear box for allowing a gear shaft of a gear in the gear transmission system to extend out; the gear box is inboard to cooperate the position of reversing gear stretches out spacing post, spacing post is installed when on the gear box, spacing post inserts first spacing groove or second spacing inslot, spacing post is along with reversing gear's rotation is in first spacing groove or the within range slip of second spacing groove.

6. The face recognition apparatus of claim 5, wherein the reversing gear is the first gear or the second gear.

7. The face recognition device of claim 5, wherein an angle sensor is further disposed in the gear box, the angle sensor is provided with a bayonet and a wire connection port, and a gear shaft of the first gear or the second gear is inserted into the bayonet in a matching manner and drives the angle sensor to rotate;

the gear transmission systems are sequentially arranged in the gear box in a mutually meshed mode, and the first gear is located at the extreme end of the gear transmission systems; the gear box and the motor are mutually perpendicular and in an L shape, and the output shaft extends out of one surface of the gear box, which faces the motor.

8. The face recognition device according to claim 1, wherein the recognition control part is further provided with a mounting box, the mounting box comprises a window at the upper end of the side face and a U-shaped mounting cavity surrounding the window on three sides, and the driving component is arranged at one corner of the mounting cavity and matched with the mounting cavity in shape; the camera shooting assembly is connected with the driving assembly, and the camera is exposed out of the window; and an identification control circuit board is arranged above the camera shooting assembly.

9. The face recognition apparatus according to any one of claims 1 to 8, further comprising a speaker portion, a sensing portion, an emergency circuit portion, and a detachable battery power supply portion.