CN220399984U

CN220399984U - Door lock recognition module

Info

Publication number: CN220399984U
Application number: CN202322086005.8U
Authority: CN
Inventors: 胡涛; 朱力; 吕方璐; 汪博
Original assignee: Shanghai Guangjian Aoshen Technology Co ltd; Zhuhai Hengqin Guangjian Technology Co ltd; Shenzhen Guangjian Technology Co Ltd
Current assignee: Shanghai Guangjian Aoshen Technology Co ltd; Zhuhai Hengqin Guangjian Technology Co ltd; Shenzhen Guangjian Technology Co Ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-01-26
Anticipated expiration: 2033-08-04

Abstract

The utility model provides a door lock recognition module, its characterized in that includes the base member, install on the base member: an infrared emitter for emitting infrared laser light; the infrared light source is used for emitting infrared floodlight; the infrared receiver is used for receiving the infrared laser or the infrared floodlight reflection signal; the interface is positioned on the side surface of the substrate and used for communication; wherein at least one of the infrared emitter, the infrared light source, and the infrared receiver extends through the substrate. The utility model enables the free application of multiple modes and has a smaller thickness.

Description

Door lock recognition module

Technical Field

The utility model relates to a depth camera module, in particular to a door lock identification module.

Background

The intelligent door lock is an improved lock which is different from the traditional mechanical lock and is more intelligent and simplified in the aspects of user safety, identification and manageability. The intelligent door lock is an executive component for locking the door in an access control system.

The intelligent door lock is different from the traditional mechanical lock, and is a composite lock with safety, convenience and advanced technology.

Many techniques that use a non-mechanical key as the user identification ID, such as: fingerprint lock, iris recognition entrance guard (biological recognition type, high safety, no loss damage, but inconvenient configuration, high cost), TM card (contact type, high safety, stainless steel material, convenient configuration and carrying, low price), face recognition door lock, palm recognition door lock, etc.

The intelligent door lock adopting the depth camera module is a novel technology. The depth camera module compares the current face information with the stored standard face information by collecting the face information, and if the comparison is successful, the door lock is unlocked; if the comparison fails, the door lock is not unlocked. Due to the stability of the face recognition technology, the depth camera model has extremely high stability when being applied to an intelligent door lock.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a door lock identification module.

The utility model provides a door lock identification module, which comprises a substrate, wherein the substrate is provided with:

an infrared emitter for emitting infrared laser light;

the infrared light source is used for emitting infrared floodlight;

the infrared receiver is used for receiving the infrared laser or the infrared floodlight reflection signal;

the interface is positioned on the side surface of the substrate and used for communication;

wherein at least one of the infrared emitter, the infrared light source, and the infrared receiver penetrates the substrate.

Optionally, the door lock recognition module is characterized by further comprising a baffle, wherein the baffle is positioned on the back surface of the base body.

Optionally, the door lock recognition module is characterized in that the baffle is of a concave structure.

Optionally, the door lock recognition module further comprises a p-sensor.

Optionally, the door lock identification module is characterized in that the infrared emitter and the infrared receiver are located at two ends.

Optionally, the door lock identification module is characterized in that the substrate comprises a first substrate and a second substrate;

the first substrate is positioned above, and the second substrate is positioned below; the side length of the first substrate is smaller than that of the second substrate.

Optionally, the door lock identification module is characterized in that the interface is located on the second base body.

Optionally, the door lock identification module further comprises a fixing piece, and the fixing piece is used for fixing the door lock identification module.

Optionally, the door lock recognition module is characterized in that a threaded hole is formed in the base body so as to fix the baffle plate and the base body.

Optionally, the door lock recognition module is characterized in that the exposure frequency of the infrared receiver is greater than the emission frequency of the infrared light source.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model has extremely small thickness through the arrangement of the plurality of light sources and the receivers, can be better applied to the door lock, and ensures that the door lock has smaller thickness and is safer and more reliable.

According to the utility model, through the collocation of the infrared emitter and the infrared light source, the infrared image, the speckle image and the depth image can be acquired, and the multiple functions of target identification, living body detection, gesture detection and the like are realized, so that the infrared imaging system has very high stability and safety.

The utility model has the advantages that the connector can realize plug connection with other parts of the door lock, has stable and reliable connection, has smaller volume and is beneficial to the miniaturization of the volume of the door lock.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art. Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of a door lock recognition module according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of another door lock recognition module according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a light projector according to an embodiment of the present utility model;

FIG. 4 is a schematic view of another configuration of a light projector according to an embodiment of the utility model;

fig. 5 is a schematic structural diagram of an infrared receiver according to an embodiment of the present utility model.

1- -an infrared emitter;

2- -an infrared receiver;

3- -an infrared light source;

4--p-sensor；

5- -a first substrate;

6- -a second substrate;

7- -fixing piece;

8- -positioning holes;

9- -a threaded hole;

10- -a baffle;

11- -interface;

301—an edge-emitting laser;

302- -a beam projector;

303—a laser array;

304—a collimator lens;

305—a beam splitter;

501-an array of light detectors;

502—an optical imaging lens;

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for a fixing function or for a circuit communication function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing embodiments of the utility model and to simplify the description by referring to the figures, rather than to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

an infrared emitter for emitting infrared laser light;

the infrared light source is used for emitting infrared floodlight;

wherein at least one of the infrared emitter, the infrared light source, and the infrared receiver extends through the substrate.

The utility model can obtain stable and reliable data by setting the projection of structured light and floodlight, and the thickness of the door lock identification module is minimized by penetrating at least one of the infrared emitter, the infrared light source and the infrared receiver through the substrate, thereby being beneficial to the thickness minimization of the door lock and ensuring the door lock to be safer and more reliable.

The foregoing is a core idea of the present utility model, and in order that the above-mentioned objects, features and advantages of the present utility model can be more clearly understood, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Fig. 1 is a schematic structural diagram of a door lock recognition module according to an embodiment of the utility model. As shown in fig. 1 and 2, a door lock identification module according to an embodiment of the present utility model includes a substrate, on which:

an infrared emitter 1 for emitting infrared laser light.

Specifically, the infrared emitter is a structured light projector. The infrared emitter may be any structured light projector. For example, an infrared transmitter projects a structured light spot and measures the depth value of the target object by deformation of the spot.

An infrared light source 3 for emitting infrared floodlight.

Specifically, the infrared light source may operate simultaneously with the infrared emitter or may operate separately from the infrared emitter. When the infrared emitter and the infrared light source work simultaneously, the light intensity of the infrared light source is smaller, and the infrared light source plays a role in supplementing light to the infrared emitter. When the infrared light source and the infrared emitter work respectively, infrared floodlight emitted by the infrared light source is obtained by the infrared receiver, thereby forming a TOF system, and depth data of the target object is obtained according to a time-of-flight algorithm.

An infrared receiver 2 for receiving the reflected signal of the infrared laser light or the infrared floodlight.

Specifically, the type of infrared receiver is determined by the action of the infrared light source. When the infrared light source only plays a role of light supplementing, the infrared receiver is a structural light receiver. When the infrared light source can emit floodlight, thereby constituting a TOF system, the infrared receiver is a TOF sensor. It should be noted that if the infrared light source can supplement light and also form a TOF system, the infrared receiver is still a TOF sensor.

And an interface 11 located on the side of the substrate for communication.

Specifically, the interface 11 may be various interfaces, such as USB, D9, HDMI, and the like. The interface 11 is located on the side of the base body, not below, which is advantageous for the door lock to have a smaller thickness. The door lock is fixedly provided with a connecting device opposite to the interface 11, and the communication and power supply of the depth camera and the door lock can be realized by connecting the interface 11 with the connecting device.

At least one of the infrared emitter, the infrared light source and the infrared receiver penetrates through the substrate. The heights of the infrared emitter, the infrared light source and the infrared receiver above the substrate are basically the same, but the heights of the infrared emitter, the infrared light source and the infrared receiver are different, so that the positions below the infrared emitter, the infrared light source and the infrared receiver are high and low. At least one of the infrared emitter, the infrared light source and the infrared receiver penetrates through the substrate, so that the bottom is outside the substrate. Thereby minimizing the thickness of the substrate.

In some embodiments, the door lock recognition module further includes a baffle 10, where the baffle 10 is located on the back of the substrate. The baffle 10 is detachably mounted on the base body, so that components penetrating through the base body in the infrared emitter, the infrared light source and the infrared receiver can be protected, and later maintenance is facilitated.

In some embodiments, the baffle 10 is a concave structure. The baffle 10 is higher at both ends than in the middle so that the thickness of both ends is minimized. Since the longest component of the infrared emitter, infrared source, infrared receiver is of a fixed size, the position of the middle of the baffle is also relatively fixed. Both ends indent for the holistic volume of lock discernment module is minimum.

In some embodiments, the door lock identification module further includes a p-sensor 4. The distance sensor (p-sensor) has low power and can sense the approach of a target object, so that the door lock recognition module is started. The p-sensor 4 works in a standby state, and when a target object is sensed, the door lock recognition module is started to recognize the target object, so that the function of the door lock can be realized with minimum power consumption.

In some embodiments, infrared emitter 1 and infrared receiver 2 are located at both ends. The infrared emitter and the infrared receiver are respectively arranged at the most edge of the base body, so that the distance between the infrared emitter and the infrared receiver is maximized, the space of the door lock recognition module is utilized to the maximum, and the highest measurement precision is obtained.

In some embodiments, the matrix comprises a first matrix 5 and a second matrix 6. The first base body 5 is located above and the second base body 6 is located below; the side length of the first substrate 5 is smaller than the side length of the second substrate 6. The first base 5 and the second base 6 are stepped. The steps of the first base body 5 and the second base body 6 can enable the door lock identification module to be clamped with a door lock, and the position is more accurate and firm.

In some embodiments, the interface 11 is located on the second substrate 6. The second substrate 6 is larger in size than the first substrate 5. When the door lock identification module is locked with the door lock, the first base body is locked with the door lock, and the positioning function is achieved. The second base body 6 is not locked to the door lock, but its side surface is not in contact with other parts, and has a connecting space. The second body is inwardly apertured to mount the interface 11. The end of the interface 11 is inside the second base body, not beyond the side of the second base body.

In some embodiments, a fixing piece 7 is further included for fixing the door lock identification module. The fixing pieces 7 are at least two pieces and are arranged on two sides of the door lock. The fixing piece 7 is provided with at least two positioning holes 8. The door lock identification module can be fixed on the door lock through the positioning hole.

In some embodiments, threaded holes 9 are provided in the base to secure the baffle 10 to the base. The number of threaded holes 9 is at least 4, and the threaded holes and the baffle are fixed from a plurality of different positions. After the base body and the baffle are fixed by the threaded holes, the door lock recognition module is a complete product and has higher impact resistance. The fixing piece 7 may also be connected by a screw hole 9.

In some embodiments, the infrared receiver has an exposure frequency that is greater than the emission frequency of the infrared light source. When the infrared light source emits, the signal received by the infrared receiver is the signal emitted by the infrared light source, and the signal generated depends on the type of infrared light source. When the infrared light source does not emit, the signal received by the infrared receiver is the signal of the target object, and an infrared image is generated. When the infrared light source is a structured light projector, the infrared receiver receives the light spot signals, so that the infrared receiver can generate a light spot image, an infrared image and a depth image. The facula diagram, the infrared diagram, the depth diagram and the RGB diagram are combined to form a plurality of modes to realize a plurality of measurements.

FIG. 3 is a schematic view of a light projector according to an embodiment of the present utility model, and as shown in FIG. 3, the light projector includes an edge-emitting laser 301 and a beam projector 302 disposed on an optical path;

the edge-emitting laser 301 is configured to project laser light toward the beam projector 302;

the beam projector 302 is configured to project the incident laser light into a plurality of discrete collimated beams onto a target object.

In an embodiment of the present utility model, the inner surface of the beam splitting projector is provided with a micro-nano optical chip and is matched with an optical lens. The beam splitting projector can perform the function of splitting the incident light from the edge-emitting laser 301 into any of a plurality of collimated beams. The emission direction of the edge-emitting laser 301 and the projection direction of the beam-splitting projector may be the same, or may be 90 degrees or any angle required for the optical system design.

In one embodiment of the present utility model, the beam projector 302 may also employ a diffraction grating.

FIG. 4 is a schematic diagram of another configuration of a light projector according to an embodiment of the utility model, as shown in FIG. 4, the light projector includes a laser array 303, a collimating lens 304, and a beam splitter 305 disposed on an optical path;

the laser array 303 is configured to project laser light of a first order of magnitude toward the collimator lens 304;

the collimating lens 304 is configured to collimate the incident multiple laser beams and then emit collimated light beams of a first order of magnitude;

the beam splitter 305 is configured to split an incident collimated beam of a first order of magnitude and then emit a collimated beam of a second order of magnitude to a target object;

the second order of magnitude is greater than the first order of magnitude.

In one embodiment of the utility model, the laser array 303 may be composed of a plurality of vertical cavity surface emitting lasers (Vertical Cavity Surface Emitting Laser, VCSELs) or a plurality of edge emitting lasers (Edge Emitting Laser, EELs). The multiple lasers may be collimated into highly parallel beams after passing through the collimating lens 304. The beam splitter 305 may be used to achieve more collimated beams depending on the number of discrete beams required in an actual application. The beam splitter 305 may employ a diffraction grating (DOE), a Spatial Light Modulator (SLM), or the like.

In an embodiment of the present utility model, the light projector provided by the present utility model further includes a diffuser; the diffuser is used for diffusing the collimated light beam and enabling the collimated light beam to flood and emit.

Fig. 5 is a schematic structural diagram of an infrared receiver according to an embodiment of the present utility model, as shown in fig. 5, where the infrared receiver includes an optical imaging lens 502, a photodetector array 501, and a driving circuit; the photodetector array 501 comprises a plurality of photodetectors distributed in an array;

the optical imaging lens 502 is configured to enable a direction vector of the collimated light beam entering the photodetector array 501 through the optical imaging lens 502 to have a one-to-one correspondence with the photodetector;

the photodetector is used for receiving the collimated light beam reflected by the target object;

the driving circuit is used for measuring the propagation time of a plurality of collimated light beams and generating depth data of the surface of the target object.

To filter background noise, a narrow band filter is typically also incorporated within the optical imaging lens 502 so that the photodetector array 501 can only pass a predetermined wavelength of incident collimated light beam. The predetermined wavelength may be the wavelength of the incident collimated light beam, or may be between 50 nanometers less than the incident collimated light beam and 50 nanometers greater than the incident collimated light beam. The photodetector array 501 may be arranged periodically or aperiodically. Each light detector cooperates with an auxiliary circuit to achieve the time of flight alignment of the light beam for measurement. The photodetector array 501 may be a combination of multiple single point photodetectors or a sensor chip incorporating multiple photodetectors, depending on the number of discrete collimated light beams required. To further optimize the sensitivity of the photo detectors, the illumination spot of one discrete collimated beam on the target object 3 may correspond to one or more photo detectors. When a plurality of light detectors correspond to the same irradiation light spot, the signals of each detector can be communicated through a circuit, so that the light detectors with larger detection areas can be combined.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the utility model.

Claims

1. The utility model provides a door lock recognition module, its characterized in that includes the base member, install on the base member:

an infrared emitter for emitting infrared laser light;

the infrared light source is used for emitting infrared floodlight;

2. The door lock identification module of claim 1, further comprising a baffle, the baffle being positioned on the back of the base.

3. The door lock identification module of claim 2, wherein the baffle is of a concave structure.

4. The door lock identification module of claim 1, further comprising a p-sensor.

5. The door lock identification module of claim 1, wherein the infrared emitter and the infrared receiver are located at both ends.

6. The door lock identification module of claim 1, wherein the base comprises a first base and a second base;

7. The door lock identification module of claim 6, wherein the interface is located on the second substrate.

8. The door lock identification module of claim 1, further comprising a fixing piece for fixing the door lock identification module.

9. The door lock identification module as claimed in claim 2, wherein the base has a threaded hole formed therein to fix the shutter to the base.

10. The door lock identification module of claim 1, wherein the infrared receiver has an exposure frequency greater than an emission frequency of the infrared light source.