WO2021208562A1

WO2021208562A1 - Camera adapter bracket, camera, and smart door lock

Info

Publication number: WO2021208562A1
Application number: PCT/CN2021/073938
Authority: WO
Inventors: 张匡辉; 贺茂元; 江俊
Original assignee: 惠州视维新技术有限公司
Priority date: 2020-04-15
Filing date: 2021-01-27
Publication date: 2021-10-21
Also published as: CN212562810U

Abstract

A camera adapter bracket, a camera (410), and a smart door lock. The camera adapter bracket comprises a top plate (100) and a first side plate (200) and a second side plate (300) arranged at two ends of the top plate (100); kidney-shaped grooves (110) are formed in the top plate (100); a bevel clamping groove (120) is formed in a lower surface (101) of the top plate (100); a mounting surface enclosed by the lower surface of the top plate (100) and the surface of the bevel clamping groove (120) matches a mounting surface (401) of a camera module (400). At least a part of the camera module (400) is arranged in the bevel clamping groove (120) on the lower surface of the top plate (100), and the camera (410) in the camera module (400) is arranged in the kidney-shaped grooves (110), so that the camera (410) further uses the kidney-shaped grooves (110) to guide light after being tilted by a certain angle.

Description

Camera adapter frame, camera and smart door lock

priority

This disclosure requires the priority of a Chinese patent application filed with the Chinese Patent Office on April 15, 2020, the application number is "2020205617598", and the application name is "a camera adapter, camera and smart door lock". The entire content is incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the technical field of smart door locks, in particular to a camera adapter frame, a camera and a smart door lock.

Background technique

With the development of technology, smart door locks are becoming more and more intelligent, and smart door locks are also widely used in daily life. For example, the current smart door locks on the market will all have a face recognition function.

In daily life, smart door locks are generally installed on the door at a height of 1 meter above the ground (in order to easily hold the handle on the door lock, it also conforms to the traditional door lock design position), and the camera with face recognition function is directly installed on the smart door. On the panel of the door lock, because the smart door lock is not installed at a high position, the imaging range in the vertical height direction of the face recognition cannot cover the height of an adult when performing face recognition, which often results in a low recognition success rate.

Therefore, the existing technology needs to be improved and improved.

Public content

In view of the above-mentioned shortcomings of the prior art, the purpose of the present disclosure is to provide a camera adapter, a camera and a smart door lock, which aims to overcome the small recognition range of the smart door lock in the prior art when performing face recognition. Defects.

The technical solutions adopted by the present disclosure to solve the technical problems are as follows:

In a first aspect, embodiments of the present disclosure provide a camera adapter frame for fixing a camera module, which includes a top plate, and a first side plate and a second side plate provided at both ends of the top plate; the top plate A waist-shaped groove is provided on the upper surface, the lower surface of the top plate is provided with an inclined surface groove, and the assembly surface enclosed by the lower surface of the top plate and the surface of the inclined surface groove is adapted to the mounting surface of the camera module .

As a further improved technical solution, in the camera adapter frame, the waist-shaped groove includes a groove top hole opened on the upper surface of the top plate, a groove bottom hole opened on the surface of the inclined groove, and The groove wall connecting the groove top hole and the groove bottom hole.

As a further improved technical solution, in the camera adapter frame, the waist-shaped groove is a through hole, which penetrates from the upper surface of the top plate to the lower surface of the top plate.

As a further improved technical solution, in the camera adapter frame, the slot top hole is larger than the slot bottom hole, and the center of the slot top hole and the center of the slot bottom hole are not on the same axis.

As a further improved technical solution, in the camera adapter frame, the top hole of the groove is a waist-shaped hole, the bottom hole of the groove is a round hole, and the groove wall is an inclined surface.

As a further improved technical solution, in the camera adapter frame, the groove top hole includes arc edges at both ends and straight edges on both sides, and the groove wall is inclined along the groove top hole to connect the groove top hole with The bottom holes of the groove are connected.

As a further improved technical solution, in the camera adapter frame, the inclination angle of the surface of the inclined groove with respect to the upper surface of the top plate is a first angle, the camera module includes a camera, and the camera The imaging angle perpendicular to the upper surface of the top plate is the second angle, and the first angle is less than or equal to one-half of the second angle.

As a further improved technical solution, in the camera adapter frame, the camera module further includes a flash, and the waist-shaped groove corresponding to the flash is provided with light-shielding components.

As a further improved technical solution, in the camera adapter frame, the waist-shaped groove corresponding to the flash is larger than the waist-shaped groove corresponding to the camera.

As a further improved technical solution, in the camera adapter frame, fastening screw holes are provided on both sides of the inclined groove, and the fastening screw holes are used to fix the camera module.

As a further improved technical solution, in the camera adapter frame, the first side plate and the second side plate are symmetrical to each other, and the first side plate and the second side plate are both provided with at least four screw connections The screw plate on the first side plate is perpendicular to the first side plate, and the screw plate on the second side plate is perpendicular to the second side plate.

As a further improved technical solution, in the camera adapter frame, the shading component is shading cotton.

In a second aspect, embodiments of the present disclosure provide a camera, which includes the above-mentioned camera adapter.

In a third aspect, embodiments of the present disclosure provide a smart door lock, which includes the above-mentioned camera.

Compared with the prior art, the embodiments of the present disclosure have the following advantages:

The camera adapter frame provided by the embodiment of the present disclosure includes a top plate, and a first side plate and a second side plate arranged at both ends of the top plate; the top plate is provided with a waist-shaped groove, and the lower surface of the top plate is provided with Inclined slot, the assembly surface enclosed by the lower surface of the top plate and the surface of the inclined slot is matched with the installation surface of the camera module. By arranging at least a part of the camera module in the inclined groove on the lower surface of the top plate, and setting the camera in the camera module in the waist-shaped groove, the camera can further use the waist-shaped groove to guide light after being inclined at a certain angle , To realize face recognition in a larger range; the camera adapter provided by the embodiments of the present disclosure effectively eliminates the problem of too small range of the camera face recognition, thereby providing convenience for users.

Description of the drawings

Fig. 1 is a schematic structural diagram of a camera adapter provided by the present disclosure;

Figure 2 is a top view of a camera adapter provided by the present disclosure;

Figure 3 is a schematic diagram of the structure of the camera module;

4 is a schematic diagram of assembling a camera adapter and camera module provided by the present disclosure;

FIG. 5 is a first principle diagram of face recognition through a camera adapter provided by the present disclosure;

Fig. 6 is a second schematic diagram of face recognition through a camera adapter provided by the present disclosure.

In the figure: 100, the top plate; 200, the first side plate; 300, the second side plate; 400, the camera module; 500, the shading part; 600, the screw plate; 101, the lower surface of the top plate; 110, the waist groove 120. Inclined card slot; 121. Fastening screw hole; 111. Slot top hole; 112. Slot bottom hole; 113. Slot wall; 410. Camera; 420. Flash.

Detailed ways

In order to make the objectives, technical solutions, and effects of the present disclosure clearer and clearer, the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, but not used to limit the present disclosure.

In the implementation mode and the scope of the patent application, unless there are special limitations on the article in the text, "a" and "the" can generally refer to a singular or plural.

In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present disclosure, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as instructions or implications. Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. , Is not within the scope of protection required by this disclosure.

Please refer to FIGS. 1 to 3 at the same time. FIG. 1 is a schematic structural diagram of a camera adapter provided by the present disclosure; FIG. 2 is a top view of a camera adapter provided by the present disclosure; FIG. 3 is a structure of a camera module Schematic. The camera adapter frame in the present disclosure is used to place the camera module 400, the camera module 400 includes a camera 410 and a flash 420, wherein the camera adapter frame includes: a top board 100, and two sets on the top board 100 The first side plate 200 and the second side plate 300 at the end; the first side plate 200 and the second side plate 300 are respectively perpendicular to the top plate 100, the top plate 100 is provided with a waist-shaped groove 110, the top plate The lower surface of 100 is provided with an inclined groove 120, and the assembly surface enclosed by the lower surface 101 of the top plate 100 and the surface of the inclined groove 120 matches the installation surface 401 of the camera module 400, so The inclined slot 120 is used to place at least a part of the camera module 400, and the camera 410 and the flash 420 are correspondingly arranged in the waist-shaped groove 110.

Wherein, the waist-shaped groove 110 is a through hole, which penetrates from the upper surface of the top plate 100 to the lower surface of the top plate 100. The waist-shaped groove 110 includes a groove top hole 111 opened on the upper surface of the top plate 100, a groove bottom hole 112 opened on the surface of the inclined groove 120, and a groove top hole 111 connected to the groove bottom hole. 112 of the groove wall 113, wherein the groove top hole 111 is larger than the groove bottom hole 112, the groove top hole 111 is a waist-shaped hole, the groove bottom hole 112 is a round hole, and the groove top hole 111 The axis of the center of the groove is parallel to the axis of the center of the groove bottom hole 112, and the two are not on the same axis, and the groove wall 113 is an inclined surface. The slot top hole 111 includes arc edges at both ends and straight edges on both sides. The slot wall 113 is inclined along the slot top hole 111 to connect the slot top hole 111 and the slot bottom hole 112. Thanks to the structure of the groove top hole 111 and the large groove bottom hole 112 being small, the groove wall 113 connecting the two is inclined, which is more conducive to the introduction of external light. The camera arranged in the waist groove can take more pictures. For large-area images, furthermore, the flash set in the waist-shaped groove can also fully emit light.

Because the camera adapter needs to be installed in other devices (such as smart door locks) during application, in order to avoid damage to other components, the overall material of the camera adapter can be PC (polycarbonate).

In the embodiments of the present disclosure, please refer to FIG. 3 and FIG. 4. FIG. 4 is a schematic diagram of assembling a camera adapter and a camera module provided by the present disclosure. The camera adapter frame can be used to be placed in a smart door lock, wherein the lower surface of the top plate 100 of the camera adapter frame is provided with a sloped card slot 120, and the sloped card slot 120 is installed on the camera adapter frame. At least a part of the camera module 400 conforms to the shape. In actual use, a camera 410 and a flash 420 are provided on the camera module 400. For example, the camera module 400 may include two cameras 410 and a flash 420. The flash 420 is located between the two cameras 410 and is on the same line as the two cameras 410. The lower surface 101 of the top plate matches the assembly surface enclosed by the surface of the inclined groove 120, and at least a part of the camera module can be arranged in the inclined groove 120, so that the entire camera module 400 is inclined at a certain angle , Wherein the camera module 400 can be screwed or adhesively fixed in the inclined groove.

Please continue to refer to FIG. 1, both sides of the inclined groove 120 are provided with fastening screw holes 121, and the fastening screw holes are used to fix the camera module 400, wherein, on both sides of the camera module 400 The corresponding position is also provided with a screw hole (not shown in the figure), which communicates with the fastening screw hole, and is used for screwing and fixing the camera module 400 in the inclined groove 120.

Further, three waist-shaped grooves 110 are correspondingly provided on the surface of the top plate 100. By arranging the camera 410 and the flash 420 in the camera module 400 in the corresponding waist-shaped grooves 110, the inclined grooves are inclined to a certain degree. The angled camera 410 can use the inclined groove wall 113 of the waist-shaped groove 110 to guide the entrance of external light, and finally make the recognition range of the camera 410 larger. Similarly, the flashlight after being inclined by the inclined slot can fully utilize the inclined groove wall 113 The light is diverged, so that the area captured by the camera 410 is clearer. It should be understood that the specific number of the waist-shaped groove 110 should correspond to the number of the camera 410 and the flash 420 on the camera module 400 in an actual situation.

Please refer to FIG. 5 and FIG. 6, FIG. 5 is a first principle diagram of face recognition through a camera adapter provided by the present disclosure; FIG. 6 is a face recognition through a camera adapter provided by the present disclosure The second schematic diagram during recognition. The inclination angle of the surface of the inclined groove 120 with respect to the upper surface of the top plate 100 is a first angle A, the imaging angle of the camera 410 perpendicular to the upper surface of the top plate 100 is a second angle D, The angle A is less than or equal to one-half of the second angle D, that is, A≤D/2. The first angle A is also the inclination angle of the camera module 400 placed in the inclined groove 120. It should be understood that the size of the first angle A should be adjusted according to actual conditions, so the adjustment range should satisfy A≤D/2.

In actual use, by adjusting the size of the first angle A within the preset range, the maximum height value Lmax and the minimum height value Lmin recognized by the camera 410 can be obtained; wherein, when the first angle A is maximum (A=D /2), the height value recognized by the camera is Lmax; when the first angle is the smallest (A=0), the height value recognized by the camera 410 is Lmin. When a person is 0.5m away from the camera and the camera 410 is installed at a height of 1m above the ground,

The Lmax=1+0.5*TAN(D/2+A) (unit: meter);

The Lmin=1-0.5*TAN(D/2-A) (unit: meter);

Therefore, the installed camera module is tilted upward at the first angle A through the camera adapter frame, thereby adjusting the coverage area of the imaging angle of the camera module, increasing the height value of face recognition, and further combining with the waist-shaped groove guide The role of light, thereby covering a larger face recognition range.

It is worth mentioning that traditional smart door locks often reduce the success rate of face recognition due to the dim light in the surrounding environment when performing face recognition. Therefore, in the prior art, the camera model of the smart door lock is adopted. A flash 420 is added to the group 400 to fill light to improve the success rate of face recognition. Therefore, the camera adapter provided by the present disclosure is also provided with a waist-shaped groove 110 matching the flash 420. By setting the flash in the waist-shaped groove, the flash can fully diverge the light, but the light emitted by the flash 420 when filling light is easily reflected to the camera 410, which also reduces the success rate of face recognition of the camera 410.

As a further solution, a light-shielding component 500 is provided around the waist-shaped groove 110 corresponding to the flash 420. When the camera 410 and the flash 420 in the camera module 400 are respectively disposed in the waist-shaped groove 110, the flash A layer of shading member 500 is provided around the surface of the waist groove 110 corresponding to 420, which can effectively block and absorb the light emitted by the flash 420, and prevent the camera 410 from being affected by the flash 420, so that the camera 410 performs face recognition. Can clearly identify the area taken. Wherein, the shading member 500 is shading cotton, and the shading cotton is rectangularly arranged around the waist-shaped groove 110 corresponding to the flashlight 420. It should be understood that the shading cotton can also be set in other shapes, which should be specifically based on actual conditions. set up. Wherein, the light-shielding cotton can be made of EPE (polyethylene foamed cotton).

Wherein, in order to facilitate better light supplementation, the size of the waist-shaped groove corresponding to the flash 420 may be set to be larger than the size of the waist-shaped groove corresponding to the camera.

Please continue to refer to FIG. 2, the top plate 100 is perpendicular to the first side plate 200 and the second side plate 300, and the first side plate 200 and the second side plate 300 are parallel to each other, and the first side plate 200 and the second side plate 300 are parallel to each other. The board 300 has a symmetrical structure. The first side plate 200 and the second side plate 300 are respectively provided with at least four screw connection plates 600, and the screw connection plates 600 on the first side plate 200 are respectively provided on both sides of the first side plate 200, and they are both It is perpendicular to the first side plate 200, and the screw plates 600 on the second side plate 300 are respectively arranged on both sides of the second side plate 300 and are perpendicular to the second side plate 300. Each screw plate 600 is provided with screw holes for fixing with external components. For example, when the camera adapter frame needs to be installed in a smart door lock, the screw holes on the first side plate 200 and the second side plate 300 can be tightly connected to other parts in the smart door lock .

The working principle of the camera adapter frame of this embodiment:

By arranging at least a part of the camera module 400 in the inclined slot 120 of the camera adapter frame, the entire camera module 400 is inclined at a certain angle (the first angle A), and further, a plurality of correspondingly arranged on the top plate 100 The waist-shaped groove 110, by fixing the camera 410 and the flash 420 in the camera module 400 in the corresponding waist-shaped groove 110, the camera 410 can use the inclined arc-shaped groove wall 113 of the waist-shaped groove 110 Guide the entry of external light, so that the camera uses the waist-shaped groove to guide the light after tilting a certain angle to realize face recognition in a larger range. Further, by arranging a layer of light-shielding component 500 around the surface of the waist groove 110 corresponding to the flash 420, the light emitted by the flash 420 can be effectively isolated, and the camera 410 is prevented from being affected by the flash 420, so that the camera 410 is in progress. Face recognition can clearly identify the captured area.

On the basis of the above-mentioned camera adapter, the present disclosure also discloses a camera, which includes the above-mentioned camera adapter. It should be understood that, of course, the camera also includes other structures, which are all the prior art, so they will not be repeated here.

Based on the above-mentioned camera adapter frame, the present disclosure also discloses an intelligent door lock, which includes the above-mentioned camera. It should be understood that, of course, the smart door lock also includes other structures, which are all the prior art, so they will not be repeated here.

In summary, the present disclosure provides a camera adapter frame, a camera, and a smart door lock, wherein the camera adapter frame includes a top plate, and a first side plate and a second side plate provided at both ends of the top plate The top plate is provided with a waist-shaped groove, the lower surface of the top plate is provided with an inclined groove, the lower surface of the top plate and the surface of the inclined groove surround the assembly surface and the camera module The mounting surface is suitable. By arranging at least a part of the camera module in the inclined groove on the lower surface of the top plate, and setting the camera in the camera module in the waist-shaped groove, the camera can further use the waist-shaped groove to guide light after being inclined at a certain angle , To realize face recognition in a larger range; the camera adapter provided by the embodiments of the present disclosure effectively eliminates the problem of too small range of the camera face recognition, thereby providing convenience for users.

Those skilled in the art will easily think of other embodiments of the present disclosure after considering the specification and practicing the solutions disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptive changes of the present disclosure. These variations, uses, or adaptive changes follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field that are not disclosed in the present disclosure. . The description and the embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the claims.

Claims

A camera adapter frame for fixing a camera module, which includes a top plate, and a first side plate and a second side plate arranged at both ends of the top plate; the top plate is provided with a waist-shaped groove, and the top plate The lower surface of the camera module is provided with an inclined surface groove, and the assembly surface enclosed by the lower surface of the top plate and the surface of the inclined surface groove is adapted to the installation surface of the camera module.
The camera adapter frame according to claim 1, wherein the waist-shaped groove includes a groove top hole opened on the upper surface of the top plate, a groove bottom hole opened on the surface of the inclined groove, and a connection point The groove wall of the groove top hole and the groove bottom hole.
The camera adapter frame according to claim 1, wherein the waist-shaped groove is a through hole, which penetrates from the upper surface of the top plate to the lower surface of the top plate.
3. The camera adapter of claim 2, wherein the top hole of the slot is larger than the bottom hole of the slot, and the axis of the center of the slot top hole is parallel to the axis of the center of the slot bottom hole.
The camera adapter of claim 2, wherein the top hole of the groove is a waist-shaped hole, the bottom hole of the groove is a round hole, and the groove wall is an inclined surface.
The camera adapter of claim 5, wherein the slot top hole includes arc edges at both ends and straight edges on both sides, and the slot wall is inclined along the slot top hole to align the slot top hole with the bottom of the slot. The holes are connected.
The camera adapter according to claim 2, wherein the inclination angle of the surface of the inclined groove with respect to the upper surface of the top plate is a first angle, the camera module includes a camera, and the camera is perpendicular to The imaging angle of the upper surface of the top plate is a second angle, and the first angle is less than or equal to one-half of the second angle.
8. The camera adapter frame according to claim 7, wherein the camera module further comprises a flash, and the waist-shaped groove corresponding to the flash is provided with light-shielding components.
8. The camera adapter of claim 8, wherein the waist-shaped groove corresponding to the flash is larger than the waist-shaped groove corresponding to the camera.
The camera adapter frame according to claim 1, wherein two sides of the inclined groove are provided with fastening screw holes, and the fastening screw holes are used to fix the camera module.
The camera adapter of claim 1, wherein the first side plate and the second side plate are symmetrical to each other, and the first side plate and the second side plate are both provided with at least four screw connection plates, The screw plates on the first side plate are respectively perpendicular to the first side plate, and the screw plates on the second side plate are respectively perpendicular to the second side plate.
8. The camera adapter frame according to claim 8, wherein the shading member is shading cotton.
A camera, which comprises the camera adapter frame according to any one of claims 1-12.
A smart door lock, which comprises the camera according to claim 13.