CN218976748U - Camera module and intelligent door lock system - Google Patents

Abstract

The utility model provides a camera module and an intelligent door lock system. The camera is arranged on the first circuit board; the second circuit board is positioned at one side of the first circuit board and is away from the camera; the two ends of each pin connector are respectively connected with the first circuit board and the second circuit board; the light supplementing lamp is arranged on the surface, deviating from the first circuit board, of the second circuit board. In the camera module, the mechanical connection and the electrical connection between the second circuit board and the first circuit board are realized through the at least two pin header connectors, and the light supplementing lamp is arranged on the second circuit board, so that the light supplementing lamp has good stability and is not easy to be blocked by the camera; in addition, at least two pin connectors enable the first circuit board to provide larger current for the second circuit board, and the luminous power of the light supplementing lamp is guaranteed.

Description

Camera module and intelligent door lock system

Technical Field

The utility model relates to the technical field of door locks, in particular to a camera module and an intelligent door lock system.

Background

In some intelligent door lock systems, the functions of intelligent visual intercom, real-time snapshot, video monitoring and the like are realized through a camera. In order to enable the camera to acquire clear images at night or in dark light, a light supplementing lamp is generally arranged, and in order to enable light beams emitted by the light supplementing lamp not to be blocked, a light emitting surface of the light supplementing lamp is generally arranged close to the top surface of the camera module.

However, the light filling lamp and the camera are usually arranged on the same circuit board, the light filling lamp is connected with the circuit board through pins, the light emitting surface of the light filling lamp is close to the top surface of the camera only by requiring a longer pin because the height of the camera is higher, the light filling lamp is easy to skew due to the longer pin, even the pin is separated from the circuit board, and the light filling effect is affected.

Disclosure of Invention

The utility model aims to provide a camera module and an intelligent door lock system, which are used for solving the technical problem of poor connection stability of a light supplementing lamp in a camera module in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, a camera module is provided, including a first circuit board, a camera, a second circuit board, at least two pin header connectors and a light supplementing lamp, wherein the camera is arranged on the first circuit board; the second circuit board is positioned at one side of the first circuit board and is away from the camera, and two ends of each pin header connector are respectively connected with the first circuit board and the second circuit board; the light supplementing lamp is arranged on the surface, deviating from the first circuit board, of the second circuit board.

In some embodiments, the pin header connector includes at least four pins, one end of the pins being connected to the first circuit board and the other end of the pins being connected to the second circuit board. In some embodiments, the pin header connector further includes a header disposed on the first circuit board or the second circuit board, and the header is provided with pin header holes connected to the pins. In some embodiments, the camera module further includes a connection post disposed between the first circuit board and the second circuit board and spaced apart from the pin header connector, wherein one end of the connection post abuts against the first circuit board and the other end abuts against the second circuit board.

In some embodiments, the camera includes a lens, a filter component, a lens barrel, and an image sensor, the lens barrel is mounted on the first circuit board, the lens and the filter component are sequentially mounted on the lens barrel along an incident direction, and the image sensor is mounted on the first circuit board and is located in the lens barrel. In some of these embodiments, the filter element includes a dual pass filter that allows the visible light beam and the infrared light beam of a particular wavelength to pass through. In other embodiments, the filter component includes a first filter that allows infrared light to pass through, a second filter that allows visible light to pass through, a bracket, the first filter and the second filter being disposed on the bracket, the bracket being movably connected to the lens barrel, and a driving member mounted on the first circuit board and connected to the bracket for driving the bracket to move relative to the lens barrel to move the first filter or the second filter into an imaging light path of the camera.

In some embodiments, the camera module further includes a photosensitive element disposed on a surface of the second circuit board facing away from the first circuit board, for sensing brightness of the ambient light. In some embodiments, the number of light-compensating lamps is a plurality, the plurality of light-compensating lamps surrounding the camera; the at least one light supplementing lamp is an infrared light supplementing lamp; and/or, at least one light supplementing lamp is a visible light supplementing lamp. In some embodiments, the second circuit board is provided with an avoidance hole for avoiding the camera, and the camera penetrates through the avoidance hole and extends out of the second circuit board; or, the second circuit board is located at the lateral direction of the camera so as to avoid the camera.

In a second aspect, an intelligent door lock system is provided, including the camera module, the depth camera module, the algorithm board, the first FPC connector and the second FPC connector; the depth camera module is used for acquiring depth information; the first FPC connector is connected with the camera module and the algorithm board, and the second FPC connector is connected with the depth camera module and the algorithm board.

In the camera shooting module and the intelligent door lock system, the second circuit board is used for arranging the light supplementing lamp, the second circuit board is mechanically and electrically connected with the first circuit board provided with the camera through the at least two pin array connectors, and therefore the emergent surface of the light supplementing lamp can be basically consistent with the height of the camera without long pins, the stability of the light supplementing lamp is good, and the stability of the camera shooting module is improved; in addition, at least two row needle connectors make the first circuit board can provide bigger electric current for the second circuit board, guaranteed the luminous power of light filling lamp, the connection stability of second circuit board is better simultaneously.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an intelligent door lock system according to a first embodiment of the present utility model;

fig. 2 is a perspective view of a first view angle of an image capturing module according to a first embodiment of the present utility model;

fig. 3 is a perspective view of a second view angle of the camera module according to the first embodiment of the present utility model;

fig. 4 is a perspective view of a third view angle of the camera module according to the first embodiment of the present utility model;

FIG. 5 is a schematic view of a filter element provided in an embodiment of the present utility model;

fig. 6 is a perspective view of a first view angle of an image capturing module according to a second embodiment of the present utility model.

The reference numerals in the drawings are as follows:

100. an intelligent door lock system;

10. a camera module; 20. an algorithm board; 30. a first FPC connector; 40. a depth camera module; 50. a second FPC connector;

1. a first circuit board; 2. a camera; 3. a second circuit board; 4. a light supplementing lamp; 5. a pin header connector; 6. a connecting column; 7. a photosensitive element; 8. a first fastener; 9. a second fastener;

11. an interface; 12. an interface seat; 21. a lens; 22. a filter member; 23. a lens barrel; 31. avoidance holes; 51. arranging needles; 52. arranging a mother;

221. a first filter; 222. a second filter; 223. a bracket; 224. a driving member; 231. a boss; 401. a light emitter; 402. a floodlight; 403. an optical receiver;

2311. a first connection hole; 1001. and a second connection hole.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the 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 or indirectly connected to the other element.

It will be appreciated that the terms "top," "inner," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the utility model only, and are not necessarily intended to indicate that the device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not 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 relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Specific implementations of the utility model are described in more detail below in connection with specific embodiments.

As shown in fig. 1, an embodiment of the present utility model provides an intelligent door lock system 100, wherein the intelligent door lock system 100 includes a camera module 10, an algorithm board 20, a first FPC (Flexible Printed Circuit, flexible circuit board) connector 30, a depth camera module 40, and a second FPC connector 50. The first FPC connector 30 connects the camera module 10 and the algorithm board 20, and the second FPC connector 50 connects the depth camera module 40 and the algorithm board 20. The first FPC connector 30 may be the same as or different from the second FPC connector 50, and is not limited herein. In the intelligent door lock system 100 of the application, the camera module 10, the depth camera module 40 and the algorithm board 20 are arranged in a split mode, and the volumes of the camera module 10, the depth camera module 40 and the algorithm board 20 are smaller, so that the intelligent door lock system 100 is convenient to layout.

The depth camera module 40 is used for acquiring depth information of a user, and the camera module 10 is used for acquiring an image of the user. Specifically, after the camera module 10 acquires an image (picture or video) of a user outside the door, the image is transmitted to the algorithm board 20, the algorithm board 20 is further connected with a display module (not shown) in the intelligent door lock system 100, and the image of the user acquired by the camera module 10 is transmitted to the display module for display. The depth camera module 40 is used for acquiring a depth image of an outdoor user, transmitting the depth image to the algorithm board 20, and the algorithm board 20 can combine the depth image to perform face recognition, and unlock the door when the face recognition passes, otherwise unlock the door.

The camera module 10 can be used as a cat eye module to be applied in the intelligent door lock system 100 to realize the functions of intelligent visual intercom, real-time snapshot, video monitoring and the like; the camera module 10 may also be arranged in other systems according to actual requirements, for example, the camera module 10 is arranged in a smart doorbell system, a monitoring device, a mobile robot, and the like. The embodiment will be described by taking the application of the camera module 10 to the intelligent door lock system 100 as an example.

As shown in fig. 2 to 4, the camera module 10 includes a first circuit board 1, a camera 2, a second circuit board 3, a pin header connector 5, and a light supplementing lamp 4. The camera 2 is located first circuit board 1, and second circuit board 3 is located one side of first circuit board 1 to dodge camera 2, arrange needle connector 5 and be two at least, the both ends of every row needle connector 5 are connected with first circuit board 1 and second circuit board 3 respectively, and light filling lamp 4 locates the surface that second circuit board 3 deviates from first circuit board 1.

The first circuit board 1 can provide mounting space and support for most components. The first circuit board 1 is provided with an interface 11, and the interface 11 is used for connecting with the first FPC connector 30, so as to realize connection between the camera module 10 and the algorithm board 20. The first circuit board 1 includes a first surface and a second surface opposite to each other, and the interface 11 may be disposed on the second surface of the first circuit board 1. Circuits may be provided on the first and second surfaces of the first circuit board 1 to enable connection and power supply of the individual components.

The camera 2 is arranged on the first surface of the first circuit board 1, and the camera 2 is used for collecting images (pictures and videos). The camera 2 may be fixed to the first circuit board 1 by means of fasteners, glue or threads. In one embodiment, the camera 2 includes a lens 21, a filter member 22, a lens barrel 23, and an image sensor (not shown). The lens barrel 23 is fixedly mounted on the first circuit board 1, for example, the lens barrel 23 is formed with a boss 231 extending outwards towards two sides, the boss 231 is provided with a first connection hole 2311, the first circuit board 1 is provided with a second connection hole 1001 corresponding to the first connection hole 2311, and as shown in fig. 4, the first fastener 8 penetrates through the first connection hole 2311 and the second connection hole 1001 to fix the lens barrel 23 and the first circuit board 1. The lens 21 is mounted on the lens barrel 23, and the lens 21 is used to condense light to the filter member 22. Illustratively, the barrel 23 is provided with internal threads and the lens 21 is provided with external threads, the internal threads and the external threads being adapted such that the lens 21 is mounted within the barrel 23; the lens barrel 23 and the lens 21 can be fixed by dispensing, so that the connection of the lens barrel and the lens 21 is more stable. Wherein the lens 21 may comprise one or more lenses.

The filter component 22 is disposed on the image side of the lens 21, and is configured to receive the light converged by the lens 21 and filter out part of the interference light, so as to make the imaging of the camera 2 clearer. The image sensor is disposed on a side of the filter element 22 away from the lens 21 and connected to the first circuit board 1, and is configured to receive the light filtered by the filter element 22 and convert the light into an electrical signal to generate an image. Wherein when the image sensor receives the visible light beam, a color image is generated; when the image sensor receives the infrared light beam, an infrared image is generated.

In some embodiments, the filter component 22 includes a dual-pass filter having two channels that respectively allow the visible light beam and the infrared light beam of a specific wavelength to pass through, so that the visible light can pass through the dual-pass filter to reach the image sensor when the daytime or the ambient light is sufficient, and be collected by the image sensor to generate a color image; at night or when the ambient light is insufficient, the infrared light can pass through the dual-pass filter to reach the image sensor, and the infrared light is collected by the image sensor and generated into an infrared image. When the dual-pass filter is adopted, the volume of the camera 2 is smaller, and the cost is lower.

In other embodiments, as shown in fig. 5, the filter component 22 includes a first filter 221, a second filter 222, a support 223, and a driving member 224, where the first filter 221 and the second filter 222 are disposed on the support 223, the support 223 is mounted on the lens barrel 23 and movably connected to the lens barrel 23, and the driving member 224 is connected to the support 223 and is used for driving the support 223 to move relative to the lens barrel 23, so as to move the first filter 221 and the second filter 222, so that the first filter 221 or the second filter 222 is located in an imaging optical path of the camera 2. The driving member 224 may specifically drive the support 223 to rotate or move, and may be reasonably selected according to the structure of the support 223, which is not limited herein. The first circuit board 1 is further provided with an interface seat 12, and the driving element 224 is electrically connected with the interface seat 12 to supply current to the driving element 224. Of course, the driving member 224 may also be directly connected to the first circuit board 1. Fig. 5 is only a schematic view of the filter element 22, and the actual filter element 22 may be the same as or different from fig. 5.

In one embodiment, the first filter 221 is a visible light filter, allowing visible light to pass through; the second filter 222 is an infrared light filter, allowing infrared light to pass through; when the first filter 221 is located in the imaging optical path of the camera 2, the visible light beam may pass through the first filter 221 to be received by the image sensor, and the camera 2 generates a color image; when the second filter 222 is positioned in the imaging light path of the camera 2, the infrared light beam may be received by the image sensor through the second filter 222, and the camera 2 generates an infrared image. By arranging the first filter 221, the second filter 222, the bracket 223 and the driving piece 224, the camera 2 can generate color images and infrared images, and the camera module 10 can be suitable for daytime and evening, can acquire color images in daytime and can acquire infrared images in evening.

As shown in fig. 2 to 4, the second circuit board 3 may be disposed on a side of the first surface of the first circuit board 1, and connected to the first circuit board 1 through at least two pin header connectors 5, where the pin header connectors 5 may mechanically and electrically connect and space the second circuit board 3 to the first circuit board 1. The second circuit board 3 and the camera 2 are positioned on the same side of the first circuit board 1, and the second circuit board 3 avoids the camera 2, so that the view angle of the camera 2 is prevented from being blocked. In addition, the pin header connector 5 makes the height of the second circuit board 3 relative to the first circuit board 1 approximately identical to the height of the camera 2 relative to the first circuit board 1.

As shown in fig. 2 to 3, in some embodiments, the second circuit board 3 is provided with an avoidance hole 31 for avoiding the camera 2, and the camera 2 is penetrated through the avoidance hole 31 and extends out of the second circuit board 3, so that the second circuit board 3 is arranged around the camera 2, and the light supplementing lamp 4 is arranged at the periphery of the camera 2 conveniently, and meanwhile, the second circuit board 3 is prevented from shielding the view angle of the camera 2. As shown in fig. 6, in other embodiments, the second circuit board 3 is one, and is located at a side edge of one side of the camera 2, so that the second circuit board 3 can avoid the camera, and avoid shielding the view angle of the camera 2; in this embodiment, two or more second circuit boards 3 may be provided and are respectively distributed on the sides of different sides of the camera 2, and the number of the second circuit boards 3 is not limited.

The number of the pin header connectors 5 may be at least two, for example, two, three, four, etc., the pin header connectors 5 are disposed between the first circuit board 1 and the second circuit board 3, and mechanically and electrically connect the first circuit board 1 and the second circuit board 3, and the plurality of pin header connectors 5 may be respectively connected with different vertex angle areas of the second circuit board 3, so as to better support the second circuit board 3, and reduce the possibility that the second circuit board 3 is inclined relative to the first circuit board 1, thereby making the stability of the second circuit board 3 higher. The current conduction is realized through the pin connector 5 between the first circuit board 1 and the second circuit board 3, and because the maximum current that single pin connector 5 passes through is limited, setting up two at least pin connectors 5 can effectively improve the maximum current that can pass through between first circuit board 1 and the second circuit board 3, and then first circuit board 1 can provide bigger electric current for the second circuit board 3 to can arrange more and more powerful light filling lamp 4 on the second circuit board 3.

In one embodiment, referring again to fig. 3, pin header connector 5 includes at least four pins 51, e.g., four, five, six or more pins, one end of pins 51 being connected to first circuit board 1 and the other end of pins 51 being connected to second circuit board 3. The maximum current that can be passed by the single pin header 51 is limited, and the pin header connector 5 includes at least four pin headers 51, so that the maximum passing current of the pin header connector 5 can be increased, and meanwhile, the supporting area of the pin header connector 5 can be increased, and the connection stability and the conduction current between the first circuit board 1 and the second circuit board 3 can be improved.

The pin header connector 5 further includes a pin header 52, where the pin header 52 is disposed on the first circuit board 1 or the second circuit board 3, electrically connected to the first circuit board 1 or the second circuit board 3, and connected to an end of the pin header 51. The row of female 52 can fix row of needle 51 better, and row of female 52 can also be with row of needle 51 detachably connection, the dismouting of being convenient for. The pin header 52 is provided with pin holes corresponding to the pin header 51 one by one, the pin header 51 is inserted in the pin header holes one by one, the pin header holes can limit the movement of the pin header 51, the stability of the pin header connector 5 is improved, meanwhile, metal can be arranged in the pin header holes to realize the electric connection with the pin header 51, and the pin header 51 can be in clearance fit or interference fit with the pin header holes. In the embodiment shown in fig. 3, the pin header 51 is connected to the second circuit board 3 and the socket header 52 is connected to the first circuit board 1.

In another embodiment, the camera module 10 further includes a connection post 6 disposed between the first circuit board 1 and the second circuit board 3, and the connection post 6 may be, but is not limited to, a copper post, an iron post, or the like. The connecting posts 6 are arranged at intervals with the pin header connectors 5 and are respectively connected with different vertex angle areas of the second circuit board 3, so that the connection between the first circuit board 1 and the second circuit board 3 is more stable. Wherein, the two ends of the connecting post 6 can be respectively abutted against the first circuit board 1 and the second circuit board 3, and the first circuit board 1 and the connecting post 6, and the second circuit board 3 and the connecting post 6 are fastened by the second fastening piece 9.

As shown in fig. 2 to 4, the light supplementing lamp 4 is used for supplementing light, and is arranged on the surface of the second circuit board 3 facing away from the first circuit board 1, and a certain interval is arranged between the second circuit board 3 and the first circuit board 1, so that the light supplementing lamp 4 is not easy to be blocked by the camera 2 when the light is emitted; meanwhile, the heat generated by the light supplementing lamp 4 is directly transmitted to the second circuit board 3 and not directly transmitted to the first circuit board 1, so that the stability of parts on the first circuit board 1 is improved; in addition, heat exchange can be performed through the gap between the second circuit board 3 and the first circuit board 1, so that the heat dissipation performance is improved.

In some embodiments, the number of the light supplement lamps 4 is a plurality, for example, 2, 3, 4, or more, and the plurality of light supplement lamps 4 are arranged along the circumferential direction of the camera 2. The light supplementing lamps 4 are arranged on the same second circuit board 3, or the second circuit boards 3 are arranged, at least one light supplementing lamp 4 is arranged on each second circuit board 3, the light supplementing lamps 4 are arranged in the circumferential direction of the camera 2, and then the light beams which are uniform and sufficient in the projection position can be projected, and further the camera 2 can generate a clearer image. As shown in fig. 2, the number of the light compensating lamps 4 is two, and the light compensating lamps are arranged on the same second circuit board 3 and distributed on two sides of the camera 2.

Wherein at least one light supplementing lamp 4 is an infrared light supplementing lamp, for example, one or more light supplementing lamps are all infrared light supplementing lamps; alternatively, at least one of the light supplementing lamps 4 is a visible light supplementing lamp, for example, one or more of the light supplementing lamps are all visible light supplementing lamps; alternatively, part of the light compensating lamps 4 are infrared light compensating lamps, part of the light compensating lamps 4 are visible light compensating lamps, for example, one is an infrared light compensating lamp and the other is a visible light compensating lamp; the method can be reasonably selected according to actual application scenes. The infrared light supplementing lamp is used for supplementing infrared light, and the visible light supplementing lamp is used for supplementing visible light.

As shown in fig. 2, in some embodiments, the camera module 10 further includes a photosensitive element 7, and the photosensitive element 7 is disposed on a surface of the second circuit board 3 away from the first circuit board 1, and is used for sensing the ambient light level to control the light filling lamp 4 to be turned on or off, so that the camera module 10 can generate a clearer image at any time. When the ambient light brightness is less than the preset threshold, for example, at night, the light supplementing lamp 4 is turned on, and the corresponding filter component 22 can switch the second filter 222 into the imaging light path to receive infrared light; when the ambient light level is greater than a preset threshold, for example, during daytime, the light supplementing lamp 4 is turned off, and the corresponding filter member 22 may be switched to the first filter 221 to acquire a color image. Therefore, the camera module 10 can automatically control the state of the light supplementing lamp 4 according to the change of the ambient light, and the generated image is clearer.

In the above technical scheme, the second circuit board 3 is separately provided for arranging the light compensating lamp 4, the first circuit board 1 is spaced from the second circuit board 3, the second circuit board 3 is mechanically and electrically connected with the first circuit board 1 provided with the camera 2 through at least two pin array connectors 5, the light compensating lamp 4 is arranged on the second circuit board 3, the stability of the light compensating lamp 4 is better, and the stability of the camera module 10 is improved; in addition, the heat generated by the light supplementing lamp 4 is prevented from being directly transmitted to the first circuit board 1, so that the stability of components on the first circuit board 1 is improved; and, at least two row needle connectors 5 make first circuit board 1 can provide bigger electric current for second circuit board 3, have guaranteed the luminous power of light filling lamp 4, and the connection stability of second circuit board 3 is better simultaneously.

In one embodiment, referring again to fig. 1, the depth camera module 40 includes a light emitter 401, a floodlight 402, a light receiver 403, and a control and processor (not shown), the light emitter 401 is configured to emit a speckle light beam toward a target to be measured, the floodlight 402 is configured to emit an infrared light beam toward the target to be measured, the light receiver 403 is configured to collect the speckle light beam reflected back by the target to generate a speckle image, receive the reflected infrared light beam to generate an infrared image, and transmit the speckle image and the infrared image to the control and processor, the control and processor is configured to calculate depth information of the target to be measured according to the speckle image to generate a depth image, and transmit the depth image and the infrared image to the algorithm board 20, and the algorithm board 20 combines the depth image and the infrared image to perform face recognition. In some embodiments, the depth camera module 40 may not include the floodlight 402, or the depth camera module 40 may not include a control and processor disposed on the algorithm board 20.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A camera module, comprising:

a first circuit board;

the camera is arranged on the first circuit board;

the second circuit board is positioned at one side of the first circuit board and is away from the camera;

the two ends of each pin connector are respectively connected with the first circuit board and the second circuit board;

and the light supplementing lamp is arranged on the surface of the second circuit board, which is away from the first circuit board.

2. The camera module of claim 1, wherein the pin header connector comprises at least four pins, one end of the pins being connected to the first circuit board and the other end of the pins being connected to the second circuit board.

3. The camera module of claim 2, wherein the pin header connector further comprises a pin header disposed on the first circuit board or the second circuit board and having pin header holes connected to the pins header.

4. The camera module of claim 1, further comprising a connection post disposed between the first circuit board and the second circuit board and spaced apart from the pin header connector, one end of the connection post abutting the first circuit board and the other end abutting the second circuit board.

5. The camera module of claim 1, wherein the second circuit board is provided with an avoidance hole for avoiding the camera, and the camera penetrates through the avoidance hole and extends out of the second circuit board; or, the second circuit board is located at the side of the camera.

6. The camera module of claim 1, wherein the number of light supplement lamps is a plurality, and a plurality of light supplement lamps encircle the camera; wherein, at least one light supplementing lamp is an infrared light supplementing lamp; and/or at least one of the light supplementing lamps is a visible light supplementing lamp.

7. The camera module of claim 1, wherein the camera head comprises a lens, a filter element, a barrel, and an image sensor, the barrel is mounted on the first circuit board, the lens and the filter element are mounted on the barrel in sequence along an incident direction, and the image sensor is mounted on the first circuit board and is located in the barrel.

8. The camera module of claim 7, wherein the filter element comprises a dual pass filter that allows the passage of a visible light beam and an infrared light beam of a particular wavelength; or,

the filter component comprises a first filter allowing infrared light to pass through, a second filter allowing visible light to pass through, a support and a driving piece, wherein the first filter and the second filter are arranged on the support, the support is movably connected with the lens barrel, and the driving piece is arranged on the first circuit board and connected with the support and is used for driving the support to move relative to the lens barrel so as to move the first filter or the second filter to an imaging light path of the camera.

9. The camera module of claim 7, further comprising a photosensitive element disposed on a surface of the second circuit board facing away from the first circuit board for sensing brightness of ambient light.

10. An intelligent door lock system, comprising:

the camera module of any one of claims 1 to 9;

the depth camera module is used for acquiring depth information;

an algorithm board;

the first FPC connector and the second FPC connector are respectively connected with the camera module and the algorithm board, and the depth camera module and the algorithm board.

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