CN118075583A - Tripod head camera - Google Patents

Abstract

The application discloses a cradle head camera, which comprises: a fixed housing; a movable housing; the transmission assembly is connected with the movable shell and the fixed shell and drives the movable shell to rotate relative to the fixed shell; a main plate fixed to the movable housing; and the camera shooting assembly comprises a first camera shooting module and a second camera shooting module, and the camera shooting assembly is electrically connected with the main board through a first connecting belt of the first camera shooting module and a second connecting belt of the second camera shooting module. In the above technical scheme, the camera module adopts the camera module of module encapsulation and uses the connecting band to be connected with the mainboard electricity for the camera module is easily changed, makes the design space increase of the front side of mainboard.

Description

Tripod head camera

Technical Field

The application relates to the technical field of cameras, in particular to a cradle head camera.

Background

With the improvement of life quality, indoor monitoring is a new consumption requirement, so that a pan-tilt camera with a shooting angle adjusting function is increasingly popular with the public.

In the current cradle head cameras on the market, the photosensitive chip is generally directly welded on the main board of the cradle head camera, and then the camera lens is arranged on the photosensitive path of the photosensitive chip through the lens holder to assemble the camera shooting assembly. However, the camera module of the pan-tilt camera is not easy to replace, the space on the main board of the pan-tilt camera is reduced, and components such as the light filling lamp and the like are difficult to be arranged near the camera module, so that defects exist in the imaging effect.

Therefore, a new pan-tilt camera design is desired to solve the above-mentioned problems.

Disclosure of Invention

An object of the present application is to provide a pan-tilt camera using a camera module, which overcomes the shortcomings of the prior art, so that the camera module is easy to be replaced.

An object of the present application is to provide a pan-tilt camera using a camera module, wherein a camera module of the pan-tilt camera is electrically connected with a motherboard through a connection belt, so as to increase a design space of a front side of the motherboard.

According to an aspect of the present application, there is provided a pan-tilt camera including:

A fixed housing;

A movable housing;

The transmission assembly is connected with the movable shell and the fixed shell and drives the movable shell to rotate relative to the fixed shell;

A main plate fixed to the movable housing; and

The camera shooting assembly comprises a first camera shooting module and a second camera shooting module, and the camera shooting assembly is electrically connected to the main board through a first connecting band of the first camera shooting module and a second connecting band of the second camera shooting module.

In some embodiments, the main board further includes a main circuit board, a first connection flexible board and a second connection flexible board, one end of the first connection flexible board and one end of the second connection flexible board are respectively electrically connected to the main circuit board, and the other end of the first connection flexible board and the other end of the second connection flexible board are respectively electrically connected to the first connection belt and the second connection belt.

In some embodiments, the first camera module is a wide angle camera module, the second camera module is a tele camera module, and the second camera module includes a drive motor for focusing.

In some embodiments, the pan-tilt camera further includes a light supplementing component fixed to the movable housing, the light supplementing component and the image capturing component are disposed in the same direction, and within a preset distance, a light projection range of the light supplementing component covers a view finding range of the image capturing component.

In some embodiments, the light supplementing assembly includes a first light supplementing lamp and a second light supplementing lamp, the first light supplementing lamp and the second light supplementing lamp are disposed in an area between the first camera module and the second camera module, and illumination intensities of the first light supplementing lamp and the second light supplementing lamp are the same, and projection angles of the first light supplementing lamp and the second light supplementing lamp are the same.

In some embodiments, the light supplementing assembly includes a first light supplementing lamp and a second light supplementing lamp, the first light supplementing lamp and the second light supplementing lamp are disposed in an area between the first camera module and the second camera module, an illumination intensity of the first light supplementing lamp is smaller than an illumination intensity of the second light supplementing lamp, and a projection angle of the first light supplementing lamp is larger than a projection angle of the second light supplementing lamp.

In some embodiments, the pan-tilt camera further includes a microphone assembly secured to the movable housing, the microphone assembly including a first microphone and a second microphone, the first microphone and the second microphone being disposed adjacent the first camera module and the second camera module, respectively.

In some embodiments, the end faces of the light incident sides of the first camera module and the second camera module are flush.

In some embodiments, the transmission assembly includes a transmission bracket, a first motor fixed to the bottom of the transmission bracket, and a second motor fixed to the top of the transmission bracket, the first motor driving the transmission bracket to rotate about a vertical axis relative to the fixed housing, the second motor driving the movable housing to rotate about a horizontal axis relative to the transmission bracket.

In some embodiments, the transmission assembly further includes a limit switch fixed to the transmission bracket, the limit switch being capable of acquiring information of the movable housing rotating to a set limit value relative to the fixed housing.

Compared with the prior art, the application has at least one of the following technical effects:

1. the connecting belt through the camera shooting assembly is electrically connected with the main board, so that the camera shooting assembly is easy to replace.

2. The connecting belt of the camera assembly is electrically connected with the main board, so that the design space of the front side of the main board is increased.

3. The camera shooting assembly is electrically connected with the main board through the connecting belt, so that the light supplementing assembly can be arranged between the first camera shooting module and the second camera shooting module, light supplementing is more uniform, and light supplementing effect is improved.

Additional embodiments and features are set forth in part in the description which follows and in part will become apparent to those skilled in the art upon examination of the specification or may be learned by practice of the disclosed subject matter. A further understanding of the nature and advantages of the present disclosure may be realized by reference to the remaining portions of the specification and the drawings which form a part of this disclosure.

Drawings

Fig. 1 is a schematic perspective view of a pan-tilt camera according to an embodiment of the present application;

FIG. 2 is a schematic exploded view of a pan-tilt camera according to an embodiment of the present application;

FIG. 3 is a schematic perspective view of a base according to an embodiment of the application;

FIG. 4 is a schematic exploded view of a transmission assembly according to an embodiment of the present application;

FIG. 5 is a schematic block diagram of a front housing and a plurality of components mounted to the front housing in accordance with an embodiment of the present application;

FIG. 6 is a schematic exploded view of a camera assembly according to an embodiment of the present application;

fig. 7A is a front schematic perspective view of a motherboard and light supplementing assembly according to an embodiment of the present application;

fig. 7B is a rear schematic perspective view of a motherboard according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of an image pickup assembly having an infrared transducer according to an embodiment of the present application.

Detailed Description

The present application will be further described with reference to the following specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

In the description of the present application, it should be noted that, for the azimuth words such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific scope of protection of the present application that the device or element referred to must have a specific azimuth configuration and operation.

It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that, as used in the present application, the terms "substantially," "about," and the like are used as terms of approximation of a table, not as terms of degree of the table, and are intended to illustrate inherent deviations in measured or calculated values that will be recognized by those of ordinary skill in the art.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Various units, circuits, or other components may be described or described as "configured to" perform a task or tasks. In such contexts, "configured to" implies that the structure (e.g., circuitry) is used by indicating that the unit/circuit/component includes the structure (e.g., circuitry) that performs the task or tasks during operation. Further, "configured to" may include a general-purpose structure (e.g., a general-purpose circuit) that is manipulated by software and/or firmware to operate in a manner that is capable of performing one or more tasks to be solved. "configured to" may also include adjusting a manufacturing process (e.g., a semiconductor fabrication facility) to manufacture a device (e.g., an integrated circuit) suitable for performing or executing one or more tasks.

The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification and the appended claims, the singular forms "a," "an," and "the" are intended to cover the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As used herein, the term "if" may be interpreted to mean "when..or" at..times "or" in response to a determination "or" in response to detection "depending on the context. Similarly, the phrase "if a condition or event is identified" or "if a condition or event is detected" may be interpreted to mean "upon identification of the condition or event," or "upon detection of the condition or event, depending on the context.

As described above, the cradle head camera in the prior art realizes electrical conduction by directly welding the photosensitive chip on the motherboard, so that the camera shooting assembly is difficult to replace, the distance between the photosensitive chip and the motherboard cannot be adjusted, and the front side of the motherboard is occupied at a larger position. The present application has been made in view of the above problems, and fig. 1 to 8 are schematic views showing the structure of a pan-tilt camera of the present application.

Fig. 1 is a schematic perspective view of a pan-tilt camera according to an embodiment of the present application. Fig. 2 is a schematic exploded view of a pan-tilt camera according to an embodiment of the present application. As shown in fig. 1 and 2, the pan-tilt camera 1 according to the embodiment of the present application is illustrated as including a fixed housing 10, a movable housing 20, a transmission assembly 30 and a photographing assembly 50, wherein the transmission assembly 30 connects the movable housing 20 and the fixed housing 10 and drives the movable housing 20 to rotate relative to the fixed housing 10, and the photographing assembly 50 is fixed to the movable housing 20, so that when the transmission assembly 30 drives the movable housing 20 to rotate relative to the fixed housing 10, the photographing assembly 50 moves with the movable housing 20, thereby switching the photographing angle of the pan-tilt camera 1. It should be noted that "pan-tilt" in the pan-tilt camera means that the camera can rotate to shoot objects in different directions, i.e. the pan-tilt camera has a rotating platform, and in the present application, the transmission assembly 30 provides a corresponding rotating function to form a rotating platform. Of course, in the present application, the transmission assembly 30 may also be used for anti-shake, i.e. when the pan-tilt camera shoots and shakes, the image capturing assembly 50 is driven to rotate in the opposite direction by the transmission assembly 30 to realize image stabilization.

Wherein the axes of the illustrations in fig. 2 define three mutually perpendicular directions, the application will be referenced in the following description. The X-axis may also be referred to as the longitudinal axis, about which a Roll motion (Roll) is made; the Y-axis may also be referred to as the transverse axis, about which the Pitch motion (Pitch) is rotated; the Z-axis may also be referred to as a vertical axis about which Yaw motion (Yaw) is performed.

Specifically, as shown in fig. 2, the stationary housing 10 includes a base 11 and an upper case 12 fixed to the base 11. The upper case 12 may be fixed above the base 11 by one or more combination of fixing means such as gluing, fastening, welding, screwing, etc. The upper case 12 has an upper case through hole 121, and the upper case 12 and the base 11 are fixed to each other to form a receiving cavity of the fixed case 10, and at least part of the transmission assembly 30 is disposed in the receiving cavity of the fixed case 10.

Fig. 3 is a schematic perspective view of a base according to an embodiment of the present application. As shown in fig. 3, in one embodiment of the present application, the fixed housing 10 further includes a fastening mechanism 13 formed on the bottom surface of the base 11. The base 11 is fastened to another object (for example, a wall) by the fastening mechanism 13, so that the pan-tilt camera 1 can be fixed to the object, and the pan-tilt camera 1 can be fixed at any angle, thereby realizing forward or reverse mounting of the pan-tilt camera 1. In a specific example, the snap mechanism 13 includes two snap grooves 131, the two snap grooves 131 are rotationally symmetrically arranged, and by rotating the pan-tilt camera 1, the pan-tilt camera 1 is fixed to other objects by means of the two snap grooves 131 of the base 11.

With continued reference to fig. 2, the movable housing 20 includes a front case 21 and a rear case 22, the front case 21 and the rear case 22 being fixed to each other, and the front case 21 being fixed to the rear case 22 by one or more combination of fixing means such as gluing, fastening, welding, screwing, etc. The upper case 12 and the lower case are fixed to each other to form a receiving cavity of the movable case 20, and at least a portion of the transmission assembly 30 is disposed in the receiving cavity of the movable case 20. It should be noted that an air gap exists between the movable housing 20 and the fixed housing 10, so that the rotation of the movable housing 20 relative to the fixed housing 10 does not have interference problems.

Fig. 4 is a schematic exploded view of a transmission assembly according to an embodiment of the present application. As shown in fig. 2 and 4, the transmission assembly 30 includes a transmission bracket 32, and a first motor 31 and a second motor 34 respectively fixed to the transmission bracket 32, wherein the first motor 31 is disposed at the bottom of the transmission bracket 32, and the second motor 34 is disposed at the top of the transmission bracket 32.

Specifically, the first motor 31 includes a first motor body 311, a first drive shaft 312, and a first motor fixing portion 313. The first driving shaft 312 is movably connected to the first motor body 311, and the first motor body 311 is adapted to drive the first driving shaft 312 to rotate. The first motor fixing portion 313 is fixed to the first motor main body 311, and in one example of the present application, the first motor fixing portion 313 includes two symmetrically disposed fixing holes through which the motor main body of the first motor 31 may be fixed to the bottom of the driving bracket 32 by means of screw-coupling. Further, the middle region of the base 11 integrally extends upward to form a base motor fixing portion 111, and the first driving shaft 312 of the first motor 31 is fixed to the base motor fixing portion 111 of the base 11, so that the first driving shaft 312 is fixed to the base 11. In this way, the first motor body 311 and the first driving shaft 312 of the first motor 31 are respectively fixed to the transmission bracket 32 and the base 11 of the fixed housing 10, and the first driving shaft 312 of the first motor 31 is vertically disposed, so that the first motor 31 can drive the transmission bracket 32 to rotate around the vertical shaft relative to the fixed housing 10, thereby realizing the Yaw motion (Yaw) of the pan-tilt camera 1.

Specifically, the second motor 34 includes a second motor body 341, a second driving shaft 342, and a second motor fixing portion 343. The second driving shaft 342 is movably connected to the second motor body 341, and the second motor body 341 is adapted to drive the second driving shaft 342 to rotate. The second motor fixing portion 343 is fixed to the second motor main body 341, and in one example of the present application, the second motor fixing portion 343 includes two symmetrically disposed fixing holes, and the middle region of the rear case 22 integrally extends forward to form a rear case motor fixing portion 221, through which the motor main body of the second motor 34 may be fixed to the rear case motor fixing portion 221 of the rear case 22 by screwing, so that the motor main body of the second motor 34 is fixed to the rear case 22 of the movable case 20. Further, a second drive shaft 342 of the second motor 34 is fixed to the top of the transmission bracket 32. In this way, the second motor main body 341 and the second driving shaft 342 of the second motor 34 are respectively fixed to the rear case 22 and the transmission bracket 32 of the movable housing 20, and the second driving shaft 342 of the second motor 34 is horizontally disposed, so that the second motor 34 can drive the movable housing 20 to rotate about the horizontal axis relative to the transmission bracket 32, thereby realizing the pitching motion (Pitch) of the pan-tilt camera 1. In one specific example of the present application, the second driving shaft 342 is perpendicular to the first driving shaft 312, so that the movable housing 20 can be rotated about two perpendicular axes with respect to the fixed housing 10, respectively.

In a specific example, the movable housing 20 may perform a yaw motion of less than 355 ° with respect to the fixed housing 10 under the driving of the first motor 31, so that the movable housing 20 may be manually or electrically rotated to face away from the user, thereby implementing a privacy protecting function; under the driving of the second motor 34, the movable housing 20 may perform a pitching motion of less than 60 ° with respect to the fixed housing 10, wherein the movable housing 20 may rotate upward by less than 50 °, rotate downward by less than 10 °, and the upward rotation angle of the movable housing 20 is greater than the downward rotation angle, so that the pan-tilt camera 1 may have a larger upward rotation angle when the pan-tilt camera 1 is disposed forward, and the pan-tilt camera 1 may have a larger downward rotation angle when the pan-tilt camera 1 is flipped or disposed on a vertical wall.

Further, the transmission assembly 30 further includes a limit switch 33, the limit switch 33 is fixed to the transmission bracket 32, and the limit switch 33 can obtain information that the movable housing 20 rotates to a set limit value relative to the fixed housing 10. When the movable housing 20 rotates to a set limit value relative to the fixed housing 10 through the limit switch 33, the pan-tilt camera 1 can acquire corresponding information, so that the damage of the first motor 31 caused by mechanical limit due to further rotation of the movable housing 20 relative to the fixed housing 10 is prevented. At this time, the pan-tilt camera 1 may update the rotation angle of the movable housing 20 with respect to the fixed housing 10, so as to avoid the problem that the rotation angle of the movable housing 20 with respect to the fixed housing 10 is inconsistent with the record of the pan-tilt camera 1 due to the action such as the rotation by an external force.

Fig. 7A is a front schematic perspective view of a main board and a light supplementing assembly according to an embodiment of the present application, and fig. 7B is a rear schematic perspective view of the main board according to an embodiment of the present application, wherein a surface of the main board 40 facing the front case 21 is a front surface, and a surface of the main board 40 facing the rear case 22 is a rear surface. Referring to fig. 2, 7A and 7B, the pan-tilt camera 1 further includes a main board 40, and the main board 40 is fixed to the movable housing 20, so that the main board 40 can also rotate along with the rotation of the movable housing 20. The camera assembly 50 is electrically connected to the main board 40, the camera assembly 50 is in communication connection with the main board 40, the main board 40 provides a driving power supply and driving signals for the camera assembly 50, the camera assembly 50 transmits the photographed image and/or video data to the main board 40, and the main board 40 can store the obtained data photographed by the camera assembly 50 in a memory or upload the data to a cloud for storage or transfer to electronic devices such as a mobile phone. In one specific example, the camera assembly 50 is fixed to the front case 21 of the movable case 20, and the main board 40 is also fixed to the front case 21 of the movable case 20.

The main board 40 includes a main circuit board 41, and a plurality of conductive interfaces 42, ipex interfaces 43, a TF card holder 44, and a reset button 45 respectively disposed on the front and back sides of the main circuit board 41, where the plurality of conductive interfaces 42, ipex interfaces 43, TF card holder 44, and reset button 45 are electrically connected to the main circuit board 41. The multiple conducting interfaces 42 provide interfaces for electrically conducting the components of the pan-tilt camera 1 and the main circuit board 41, the ipex interfaces 43 are used for externally connecting an antenna to provide a function of wireless communication of the main board 40, the TF card seat 44 is used for inserting a TF memory to provide a function of data storage of the main board 40, and the setting of the reset key 45 can provide a reset signal of the main board 40 in a manual triggering manner to reset and rerun the pan-tilt camera so as to solve the problems such as operation errors of the pan-tilt camera. In one example of the present application, ipex interface 43, TF cartridge 44, and reset button 45 are all disposed on the back of main circuit board 41.

Fig. 5 is a schematic structural view of a front case and a plurality of components mounted to the front case according to an embodiment of the present application. Fig. 6 is a schematic exploded view of a camera assembly according to an embodiment of the present application. As shown in fig. 2,5 and 6, in the present application, the camera assembly 50 includes at least one camera module, the camera module has a connection strap, and the camera module is electrically connected to the main board 40 through the connection strap. The camera module in the camera assembly 50 can be simply replaced by electrically connecting the connecting belt with the main board 40, so that no matter the camera assembly 50 is damaged or shooting parameters of the pan-tilt camera 1 need to be updated, the main board 40 is not required to be replaced together, and only the camera assembly 50 is required to be replaced.

It should be noted that, in the prior art, the photosensitive chip of the image capturing assembly 50 is directly welded to the main board 40, and then the optical lens is supported on the photosensitive path of the photosensitive chip, so that the size of the image capturing assembly 50 is relatively large, and the image capturing assembly 50 is difficult to separate from the main board 40 for separate replacement, and when the optical lens or the photosensitive chip is damaged, the image capturing assembly 50 and the main board 40 need to be completely replaced. In the present application, since the independent camera module is adopted, the photosensitive chip is electrically connected to the main board 40 through the connection, and only the connection belt needs to be removed from the main board 40 when the camera module 50 is replaced.

In one example of the present application, the main board 40 further includes at least one connection flexible board, one end of the connection flexible board is electrically connected to the main circuit board 41 of the main board 40, and the other end of the connection flexible board is connected to the connection belt of the camera module, and the connection flexible board is used as a medium for transferring electric connection, so that the connection belt of the camera module can be electrically connected to the main board 40 even when the connection belt of the camera module is short. In other examples of the present application, the main board 40 may not be provided with a connection flexible board, and the camera module of the camera module 50 may be directly electrically connected to the main circuit board 41 of the main board 40 through a connection.

In one example of the present application, the camera assembly 50 includes two camera modules, namely, a first camera module 51 and a second camera module 54, where the first camera module 51 and the second camera module 54 are laterally disposed on two sides of the pan-tilt camera 1, the first camera module 51 includes a first connection strap 51222, the second camera module 54 includes a second connection strap 54222, and the connection strap of the camera assembly 50 includes the first connection strap 51222 of the first camera module 51 and the second connection strap 54222 of the second camera module 54. The number of the connection flexible boards of the main board 40 is two, the main board 40 includes a first connection flexible board 46 and a second connection flexible board 47, one end of the first connection flexible board 46 and one end of the second connection flexible board 47 are respectively electrically connected to the main circuit board 41 to extend the electrical connection length of the main circuit board 41, and the other end of the first connection flexible board 46 and the other end of the second connection flexible board 47 are respectively electrically connected to the first connection belt 51222 of the first camera module 51 and the second connection belt 54222 of the second camera module 54. The first camera module 51 of the camera assembly 50 is electrically connected to the first connection flexible board 46 through the first connection strap 51222 and is electrically connected to the main board 40, and the second camera module 54 of the camera assembly 50 is electrically connected to the second connection flexible board 47 through the second connection strap 54222 and is electrically connected to the main board 40. The first and second connection flexible plates 46 and 47 are adapted to be bent and deformed, thereby facilitating the disassembly and assembly of the camera module 50.

With continued reference to fig. 5 and 6, the camera assembly 50 further includes a first module support 52, a first protective cover 53, a second module support 55, and a second protective cover 56. The first module holder 52 and the second module holder 55 have a module accommodating chamber, respectively, and the first camera module 51 and the second camera module 54 are accommodated in the module accommodating chamber of the first module holder 52 and the second module holder 55, respectively. Wherein the first camera module 51 is fixed to one side of the first module support 52 by, for example, gluing, and the first protection cover 53 is fixed to the first module support 52 from the other side of the first module support 52 to protect the first camera module 51 from external damage; the second camera module 54 is fixed to one side of the second module holder 55 by, for example, gluing, and the second protective cover 56 is fixed to the second module holder 55 from the other side of the second module holder 55 to protect the second camera module 54 from external damage. Then, the first and second module brackets 52 and 55 may be fixed to the front case 21 of the movable case 20, respectively, by means of, for example, screw-coupling, so that the image pickup assembly 50 is fixed to the movable case 20.

In one example of the present application, the first and second module supports 52 and 55 are metal supports, for example, the first and second module supports 52 and 55 may be made of stainless steel. In this way, the first camera module 51 and the second camera module 54 can rely on the first module support 52 and the second module support 55 to dissipate heat, so that the camera module 50 will not crash due to overheating during long-time shooting.

In one example of the present application, the end surfaces of the light incident sides of the first image capturing module 51 and the second image capturing module 54 are flush, so that imaging light is incident on the first image capturing module 51 and the second image capturing module 54, which can be respectively flush, so that the first image capturing module 51 and the second image capturing module 54 can acquire light of a subject at a position at the same vertical distance from the subject, and the resulting images (pictures or videos) are more uniform. In addition, the end surfaces of the light entering sides of the first camera module 51 and the second camera module 54 are flush, so that the view field of the first camera module 51 or the second camera module 54 can be prevented from being blocked by the other camera module. In a specific example, the adjustment may be made by the fixed position of the first camera module 51 and the second camera module 54 relative to the first module support 52 or the second module support 55. It should be noted that, in the application, as the connecting belt is adopted to electrically connect with the main board, the distance between the photosensitive chip of the camera shooting module and the main board can be adjusted, while the distance between the photosensitive chip and the main board cannot be adjusted in a large scale because the photosensitive chip is directly welded on the main board in the cradle head camera in the prior art, and the welding effect of the photosensitive chip can be influenced by the excessive adjustment in a large scale.

Specifically, the first camera module 51 includes a first optical lens 511, a first photosensitive element 512 and a first supporting element 513, wherein the first optical lens 511 is fixed to the first supporting element 513, and the first supporting element 513 is fixed to the first photosensitive element 512, such that the first optical lens 511 is disposed on a photosensitive path of the first photosensitive element 512 through the first supporting element 513. The first photosensitive assembly 512 includes a first chip circuit board 5122 and a first photosensitive chip 5121, the first chip circuit board 5122 includes a first hard board 51221 and a first connection strap 51222 which are connected to each other, and the first photosensitive chip 5121 is electrically connected to the first hard board 51221. The first support component 513 may be a lens holder for supporting the optical lens, or may be a driving motor for driving the optical lens to move.

The second camera module 54 includes a second optical lens 541, a second photosensitive element 542, and a second supporting element 543, where the second optical lens 541 is fixed to the second supporting element 543, and the second supporting element 543 is fixed to the second photosensitive element 542, so that the second optical lens 541 is disposed on a photosensitive path of the second photosensitive element 542 through the second supporting element 543. The second photosensitive assembly 542 includes a second chip circuit board 5422 and a second photosensitive chip 5421, the second chip circuit board 5422 includes a second hard plate 54221 and a second connecting strap 54222 which are connected to each other, and the second photosensitive chip 5421 is electrically connected to the second hard plate 54221. The second supporting component 543 may be a driving motor for driving the optical lens to move, or may be just a lens base for supporting the optical lens.

In one example of the present application, the first supporting member 513 of the first image capturing module 51 and the second supporting member 543 of the second image capturing module 54 are each implemented as a driving motor having an anti-shake function, so that the driving motor having an anti-shake function can suppress or reduce an imaging blur problem due to shake caused by rotation when the movable housing 20 rotates.

In one example of the present application, the first image pickup module 51 is a wide-angle image pickup module having a large angle of view capable of photographing a wide range of objects, having a large range of view, and the second image pickup module 54 is a telephoto image pickup module having a relatively small angle of view, having a small range of view, but capable of clearly photographing a far object. The cradle head camera 1 adopts the combination of the wide-angle camera module and the lengthened focus camera module, can shoot a large-range object and can shoot part of the object in the view-finding range clearly. It should be noted that, in the present application, the view range of the second image capturing module 54 as the telephoto image capturing module is located in the view range as the wide-angle image capturing module, so that the "picture-in-picture" function can be realized.

Specifically, in a display screen of an electronic device (for example, a mobile phone) that acquires photographing data of the pan-tilt camera 1, a first video with a larger viewing range taken by the first image capturing module 51 and a second video with a smaller viewing range taken by the second image capturing module 54 are simultaneously displayed, and the second video is disposed at a corner of the display screen. The second video is an enlargement of a partial area in the view-finding range of the first image capturing module 51, which may be referred to as an area of interest, which has higher definition because it is focused and captured by the second image capturing module 54 as a tele module. Thus, in one example of the present application, the second supporting component 543 of the second image capturing module 54 is implemented as a driving motor, so as to be adapted to drive the second optical lens 541 to move relative to the second photosensitive component 542 for focusing, in other words, the second image capturing module 54 includes a driving motor for focusing. In a specific example of the present application, the first supporting component 513 of the first image capturing module 51 is implemented as a mirror mount, and the second supporting component 543 of the second image capturing module 54 is implemented as a focus driving motor.

Further, after the region of interest is changed, the pan-tilt camera 1 drives the movable housing 20 to rotate through the transmission assembly 30, so that the view-finding range of the tele camera module can re-include the region of interest, thereby enabling the second video to display the content of interest of the user and improving the definition.

In a specific example, the first camera module 51 has a field angle of 123 ° and the second camera module 54 has a field angle of 35 °.

With continued reference to fig. 6, in an example of the present application, the first photosensitive assembly 512 of the first camera module 51 further includes a first filter assembly 5123, the first filter assembly 5123 is disposed between the first optical lens 511 and the first photosensitive chip 5121, and the first filter assembly 5123 is fixed to the first chip circuit board 5122, so that the first filter assembly 5123 can filter infrared light to make imaging clearer. The second photosensitive assembly 542 of the second camera module 54 also includes a second filter assembly 5423, where the second filter assembly 5423 is disposed between the second optical lens 541 and the second photosensitive chip 5421, and the second filter assembly 5423 is fixed to the second chip circuit board 5422, so that the second filter assembly 5423 can filter infrared light to make imaging clearer. It should be noted that the first filter assembly 5123 may include a first filter element and a first filter element holder for supporting the first filter element, and the second filter assembly 5423 may include a second filter element and a second filter element holder for supporting the second filter element.

In another example of the present application, the first and second camera modules 51 and 54 are not provided with the first and second filter assemblies 5123 and 5423, and the camera module 50 includes the first and second infrared switches 57 and 58 respectively provided at the top surfaces of the first and second camera modules 51 and 54, so that visible light imaging can be used in a case where light conditions are good and infrared light imaging can be used in a case where light conditions are bad. Fig. 8 is a schematic structural diagram of an image capturing assembly with an infrared transducer according to an embodiment of the present application, as shown in fig. 8, specifically, the first infrared transducer 57 is disposed on the top surface of the first image capturing module 51, so that the light reflected by the object passes through the first infrared transducer 57 before entering the first image capturing module 51, the first infrared transducer 57 includes a first infrared motor 571 and a first infrared filter element 572, so that when the first image capturing module 51 does not need to receive infrared rays, the first infrared motor 571 drives the first infrared filter element 572 to cover the field of view of the first image capturing module 51, and when the first image capturing module 51 needs to image the infrared rays, the first infrared motor 571 drives the first infrared filter element 572 to leave the field of view of the first image capturing module 51; the second infrared switch 58 is disposed on the top surface of the second image capturing module 54, so that the light reflected by the object passes through the second infrared switch 58 and then enters the second image capturing module 54, and the second infrared switch 58 includes a second infrared motor 581 and a second infrared filter 582, so that when the second image capturing module 54 does not need to receive infrared rays, the second infrared motor 581 drives the second infrared filter 582 to cover the field of view of the second image capturing module 54, and when the second image capturing module 54 needs to image with infrared rays, the second infrared motor 581 drives the second infrared filter 582 to leave the field of view of the second image capturing module 54. In this way, the image pickup assembly 50 can have both the visible light photographing and the infrared light photographing functions, and the infrared switches (the first infrared switch 57 and the second infrared switch 58) are respectively provided at the top surfaces of the image pickup modules (the first image pickup module 51 and the second image pickup module 54) instead of being provided between the optical lens and the photosensitive chip, so that the image pickup modules can maintain a small size.

In an example of the present application, the first camera module 51 further includes a first heat sink formed on the back surface of the first hard board 51221 of the first photosensitive assembly 512, and the first heat sink connects the first photosensitive assembly 512 and the first module support 52, so that the heat of the first photosensitive assembly 512 can be conducted outwards through the first module support 52 as soon as possible. The second camera module 54 further includes a second heat sink formed on the back surface of the second hard board 54221 of the second photosensitive assembly 542, and the second heat sink connects the second photosensitive assembly 542 and the second module bracket 55, so that the heat of the second photosensitive assembly 542 can be conducted to the outside through the second module bracket 55 as soon as possible.

Further, referring to fig. 2 and 7A, the pan-tilt camera 1 further includes a light supplementing unit 60, and the light supplementing unit 60 is fixed to the movable housing 20, and the light supplementing unit 60 can also rotate along with the rotation of the movable housing 20. The light supplementing assembly 60 and the image capturing assembly 50 are disposed in the same direction, for example, fixed to the front housing 21 of the movable housing 20, and the light supplementing assembly 60 is disposed near the image capturing assembly 50, so that the light supplementing assembly 60 can supplement light when the image capturing assembly 50 captures images in an environment with poor light conditions, so as to obtain a clearer image. When the first camera module 51 and the second camera module 54 are provided with the first filter module 5123 and the second filter module 5423, the light supplementing module 60 emits visible light to supplement light, for example, emits white light to supplement light, so that the light of the subject reflection light supplementing module 60 can be received and imaged by the camera module 50; when the top surfaces of the first image pickup assembly 50 and the second image pickup assembly 50 are provided with the infrared switches (the first infrared switch 57 and the second infrared switch 58), the light supplementing assembly 60 emits infrared light to supplement light, and thus, when the light condition is not good, the light supplementing is performed by the infrared light, thereby performing infrared light imaging.

In one example of the present application, the projection range of the light projected by the light supplementing unit 60 covers the view range of the image capturing unit 50 within a preset distance, so that the light projected by the light supplementing unit 60 can be irradiated to all the subjects in the view range of the image capturing unit 50 within the preset distance. In a specific example, the preset distance may be 10m to cover the shooting range commonly used in most life, in other words, within the preset distance of 10m, the light projection range of the light compensating assembly 60 covers the view finding range of the image capturing assembly 50.

Specifically, in the present application, the light compensating assembly 60 includes a lamp panel 61, and a first light compensating lamp 62 and a second light compensating lamp 63 disposed on the lamp panel 61, wherein the first light compensating lamp 62 and the second light compensating lamp 63 are electrically connected to the lamp panel 61, and the lamp panel 61 is further electrically connected to the main board 40, so that the main board 40 is used for providing the power for the light compensating assembly 60 to project light and receiving the control signal of the main board 40. It should be noted that, in the present application, since the camera module 50 adopts the camera module packaged by the module and uses the connection belt to be electrically connected with the main board 40, instead of the manner of directly welding the photosensitive chip on the main board to be electrically connected in the prior art, the distance between the main board 40 and the front shell 21 can be designed to be relatively larger, the installation space of the light compensating assembly 60 can be relatively larger, and the interval between the two camera modules of the camera module 50 can be easily adjusted, so that the light compensating assembly 60 can be arranged between the camera modules 50, so that the light compensating assembly 60 and the camera module 50 are arranged as close as possible, and the light compensating effect is superior to that of the prior art.

In one example of the present application, the light supplementing assembly 60 cooperates with the image capturing assembly 50 to make the light supplementing of the image in the view range of the image capturing assembly 50 more uniform, thereby avoiding uneven brightness of the image (picture or video) captured by the image capturing assembly 50 due to the light supplementing. In one example, the first and second light compensating lamps 62 and 63 are disposed in an area between the first and second image capturing modules 51 and 54, and the first and second light compensating lamps 62 and 63 have the same illumination intensity and the same projection angle. Specifically, the first camera module 51 and the second camera module 54 are symmetrically arranged left and right, the first light compensating lamp 62 and the second light compensating lamp 63 are symmetrically arranged in the middle of the first camera module 51 and the second camera module 54, and the illumination intensity and the projection angle of the first light compensating lamp 62 and the second light compensating lamp 63 are the same. In a specific example, the line connecting the center of the first optical lens 511 and the center of the second optical lens 541 is perpendicular to the line connecting the center of the first light compensating lamp 62 and the center of the second light compensating lamp 63, and the center of the first optical lens 511 and the center of the second optical lens 541 are on the same horizontal line, so that the light compensating assembly 60 can uniformly compensate light for the first image capturing module 51 and the second image capturing module 54, wherein the center of the first optical lens 511 and the center of the second optical lens 541 are the center of the viewing range of the first image capturing module 51 and the center of the viewing range of the second image capturing module 54.

In another example of the present application, the illumination intensity of the first light compensating lamp 62 and the illumination intensity of the second light compensating lamp 63 of the light compensating assembly 60 are different, for example, the illumination intensity of the first light compensating lamp 62 is greater than the illumination intensity of the second light compensating lamp 63, so that the light compensating can be performed using the first light compensating lamp 62 or the second light compensating lamp 63 respectively under different light conditions or using the first light compensating lamp 62 and the second light compensating lamp 63 simultaneously.

Further, the first light compensating lamp 62 and the second light compensating lamp 63 are disposed in an area between the first camera module 51 and the second camera module 54, the first light compensating lamp 62 is disposed corresponding to the first camera module 51 as a wide-angle camera module, the second light compensating lamp 63 is disposed corresponding to the second camera module 54 as a telephoto camera module, the illumination intensity of the first light compensating lamp 62 is smaller than that of the second light compensating lamp 63, the projection angle of the first light compensating lamp 62 is larger than that of the second light compensating lamp 63, so that the illumination intensity of the second light compensating lamp 62 corresponding to the second camera module 54 is larger, thereby providing a better light compensating effect of the second camera module 54, and the second camera module 54 can be clearer when shooting objects at a longer distance.

Accordingly, the light supplementing assembly 60 may provide visible and/or infrared light supplementing. In one example of the present application, the light supplementing assembly 60 may provide visible light for use in a visible light supplementing when ambient light is dark, wherein the first and second light supplementing lamps 62 and 63 each project visible light, and the first and second camera modules 51 and 54 may each acquire visible light imaging; in another example, the light supplementing assembly 60 may provide infrared light for infrared light supplementing when ambient light is darker, wherein the first and second light supplementing lamps 62 and 63 each project infrared light, and the first and second camera modules 51 and 54 may each acquire infrared light imaging; in yet another example, the light supplementing assembly 60 may provide infrared light and visible light to provide infrared light and/or visible light supplementing light, respectively, under different ambient light or imaging requirements, and illustratively, one of the first and second light supplementing lamps 62, 63 may project infrared light, the other may project visible light, one of the first and second camera modules 51, 54 may acquire infrared light imaging, the other may acquire visible light imaging, so that selection may be made under different scenes, such as using infrared light for supplementing light during the night to avoid interference of light visibility with artifacts, and using visible light for supplementing light during the dim day, so that color imaging may be clearer.

With continued reference to fig. 2 and 5, the pan-tilt camera 1 further includes a microphone assembly 70, wherein the microphone assembly 70 is fixed to the movable housing 20, and the microphone assembly 70 rotates following the rotation of the movable housing 20. The microphone assembly 70 includes a first microphone 71 and a second microphone 72 disposed in bilateral symmetry, and the first microphone 71 and the second microphone 72 are electrically connected to the main board 40, thereby providing power by the main board 40 and receiving control signals of the main board 40.

In the present application, the microphone assembly 70 and the camera assembly 50 are disposed on the same side of the movable housing 20, for example, fixed to the front case 21 of the movable housing 20, such that the microphone assembly 70 and the camera assembly 50 face the subject at the same time, and the first microphone 71 and the second microphone 72 are disposed adjacent to the first camera module 51 and the second camera module 54, respectively, and the microphone assembly 70 can directly acquire the sound in the viewfinder of the camera assembly 50. In one example of the present application, since the camera assembly 50 has a large lateral length, the microphone assembly 70 is disposed above or below the camera assembly 50, so that the lateral size of the pan-tilt camera 1 is reduced. Specifically, the first microphone 71 and the second microphone 72 are disposed above or below the first camera module 51 and the second camera module 54, respectively, so that the problem that when the movable housing 20 rotates, the camera module 50 shoots a far object, and the microphone module 70 faces an obstacle at a wall or corner, thereby causing an obstacle when sound is transmitted to the microphone module 70, and finally, the acquired object emits a sound different from the actual sound is avoided. In addition, the first microphone 71 and the second microphone 72 are symmetrically disposed above or below the first camera module 51 and the second camera module 54, respectively, so that the sound signals obtained by the first microphone 71 and the second microphone 72 can be used for analysis to make the cradle head have the function of "hearing and position discrimination", so that the microphone assembly 70 can accurately control the rotation of the movable housing 20, and the camera assembly 50 can aim at the object emitting sound for shooting. In a specific example, the first microphone 71 and the second microphone 72 are disposed below the first camera module 51 and the second camera module 54, respectively.

Further, the first connection strap 51222 of the first camera module 51 and the second connection strap 54222 of the second camera module 54 extend in a direction away from the first microphone 71 and the second microphone 72, respectively, so that the first microphone 71 and the second microphone 72 are close to the non-soft board portions of the first camera module 51 and the second camera module 54, and thus the whole internal structure can be more compact and more convenient to assemble, and interference among a plurality of components during assembly is reduced.

It should be noted that, since the image capturing assembly 50 of the present application is electrically connected to the main board 40 by using the first connection strap 51222 and the second connection strap 54222, the optical lens of the image capturing assembly 50 does not need to be directly fixed to the main board 40 by the supporting assembly, so that a larger space is left between the front shell 21 of the movable housing 20 and the main board 40 for installing the microphone assembly 70, and thus the microphone assembly 70 has a greater degree of freedom in design, which is one of the advantages of the present application that the image capturing module is used as the image capturing assembly 50.

In one example of the present application, the microphone assembly 70 further includes a third microphone that is not collinear with the first microphone 71 and the second microphone 72, so that the microphone array formed by the first microphone 71, the second microphone 72 and the third microphone can accurately acquire the position of the occurrence object.

Further, the pan-tilt camera 1 further includes a speaker 81, wherein the speaker 81 is fixed to the rear housing 22 of the movable housing 20, in other words, the speaker 81 and the microphone assembly 70 are respectively disposed on two sides of the main board 40, the speaker 81 is disposed on the front side and the microphone assembly 70 is disposed on the rear side, so that the interference of the speaker 81 to the microphone assembly 70 can be reduced.

With continued reference to fig. 2 and 5, the pan-tilt camera 1 further includes an indicator light 82 disposed between the first camera module 51 and the second camera module 54, and the indicator light 82 is electrically connected to the main board 40, so as to provide a driving power and a driving signal for the indicator light 82 to control the on/off of the indicator light 82 and/or the color change of the indicator light 82. The indicator lamp 82 may indicate the working state of the pan-tilt camera 1 by being turned on and off and/or color-changing.

Further, the pan-tilt camera 1 further includes a power board 83, and the power board 83 is electrically connected to the main board 40, and the power board 83 provides driving power for the main board 40. In one example of the present application, the power supply board 83 is fixed to the base 11 of the fixed housing 10, and the power supply board 83 and the main board 40 are connected by a wire, thereby maintaining electrical conduction between the main board 40 and the power supply board 83 when the movable carrier rotates relative to the fixed carrier.

Referring further to fig. 7A and 7B, the plurality of conductive interfaces 42 provided to the main wiring board 41 includes a power source interface 421 for electrically connecting with the power source board 83, a first motor interface 422 for electrically connecting with the first motor 31, a second motor interface 423 for electrically connecting with the second motor 34, a limit switch interface 424 for electrically connecting with the limit switch 33, a horn interface 425 for electrically connecting with the horn 81, a lamp board interface 426 for electrically connecting with the lamp board 61, a microphone interface 427 for electrically connecting with the microphone, and a module interface 428 for electrically connecting with the image pickup assembly 50.

Further, referring to fig. 2, the fixed housing 10 and the movable housing 20 further have a plurality of holes and openings thereon for communicating with the outside of the plurality of components of the pan-tilt camera 1. Specifically, the front case 21 of the movable housing 20 has two image capturing openings 211 corresponding to the first image capturing module 51 and the second image capturing module 54, two light supplementing lamp holes 212 corresponding to the first light supplementing lamp 62 and the second light supplementing lamp 63, two microphone holes 213 corresponding to the first microphone 71 and the second microphone 72, an indication lamp hole 214 corresponding to the indication lamp 82, a TF cartridge opening 215 corresponding to the TF cartridge 44, and a key structure 216 corresponding to the reset key 45. The image capturing assembly 50 obtains light reflected by the object through the image capturing opening 211, the light compensating assembly 60 projects light outwards through the light compensating lamp hole 212, sound is directly transmitted to the microphone assembly 70 through the microphone hole 213, the indicator lamp 82 projects light outwards through the indicator lamp hole 214, the TF cartridge opening 215 provides a through hole for inserting the TF memory into the TF cartridge 44 in the front case 21, and the key structure 216 enables the reset key 45 to be turned on and off by pressing the key structure 216. Further, the TF cassette opening 215 and the key structure 216 are located at the bottom of the front case 21 near the fixed case 10, so that the TF cassette opening 215 and the key structure 216 can be hidden, and the aesthetic appearance is improved.

The rear case 22 of the movable case 20 has a rotation escape port 222 and a flare 223. The rotation avoidance opening 222 is vertically disposed at the bottom of the rear housing 22, so that when the movable housing 20 rotates around the transverse axis, the movable housing 20 does not interfere with the transmission support 32 of the transmission assembly 30, and the opening angle of the rotation avoidance opening 222 can limit the rotation angle of the movable housing 20 around the transverse axis, so as to avoid the damage to the second motor 34 caused by the overlarge angle when the movable housing 20 rotates around the transverse axis by manual rotation. The plurality of horn apertures 223 are arranged in an array corresponding to the horn 81 such that sound of the horn 81 can be directly transmitted from the horn apertures 223.

The base 11 of the fixed housing 10 further has a power opening 112, through which the power board 83 can be electrically connected to an external power source.

With further reference to fig. 4, the transmission bracket 32 of the transmission assembly 30 may have a wire through hole 321, the wire through hole 321 providing a wire through hole extending between the movable housing 20 and the fixed housing 10, in which the wire is disposed, the wire is not wound around the transmission bracket 32 when the movable housing 20 rotates with respect to the fixed housing 10, and the length of the wire is reduced. Among them, the wires extending between the movable housing 20 and the fixed housing 10 may include wires for electrically connecting the main board 40 and the power board 83, wires for electrically connecting the main board 40 and the first motor 31, and wires for electrically connecting the main board 40 and the limit switch 33.

With continued reference to fig. 1 and 2, the pan-tilt camera 1 may further include an outer cover 84, where the outer cover 84 is fixed to the outer side of the front shell 21, and may play a role in decoration and certain waterproof. The outer cover 84 may be provided with a plurality of through holes for the camera assembly 50 and the microphone assembly 70 to communicate directly with the outside.

The foregoing has outlined the basic principles, features, and advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.

Claims (10)

1.A pan-tilt camera, comprising:

A fixed housing;

A movable housing;

The transmission assembly is connected with the movable shell and the fixed shell and drives the movable shell to rotate relative to the fixed shell;

A main plate fixed to the movable housing; and

The camera shooting assembly comprises a first camera shooting module and a second camera shooting module, and the camera shooting assembly is electrically connected to the main board through a first connecting band of the first camera shooting module and a second connecting band of the second camera shooting module.

2. The pan-tilt camera of claim 1, wherein the main board further comprises a main circuit board, a first connection flexible board and a second connection flexible board, one end of the first connection flexible board and one end of the second connection flexible board are respectively electrically connected to the main circuit board, and the other end of the first connection flexible board and the other end of the second connection flexible board are respectively electrically connected to the first connection strap and the second connection strap.

3. The pan-tilt camera of claim 1, wherein the first camera module is a wide-angle camera module, the second camera module is a tele camera module, and the second camera module includes a drive motor for focusing.

4. A pan-tilt camera according to claim 3, wherein the pan-tilt camera further comprises a light supplementing assembly fixed to the movable housing, the light supplementing assembly being disposed in a same direction as the image capturing assembly, a light projection range of the light supplementing assembly covering a view range of the image capturing assembly within a preset distance.

5. The pan-tilt camera of claim 4, wherein the light supplementing assembly comprises a first light supplementing lamp and a second light supplementing lamp, the first light supplementing lamp and the second light supplementing lamp are arranged in an area between the first camera module and the second camera module, and illumination intensities of the first light supplementing lamp and the second light supplementing lamp are the same and projection angles are the same.

6. The pan-tilt camera of claim 4, wherein the light compensating assembly comprises a first light compensating lamp and a second light compensating lamp, the first light compensating lamp and the second light compensating lamp are disposed in an area between the first camera module and the second camera module, the illumination intensity of the first light compensating lamp is smaller than the illumination intensity of the second light compensating lamp, and the projection angle of the first light compensating lamp is larger than the projection angle of the second light compensating lamp.

7. The pan-tilt camera of claim 1, further comprising a microphone assembly secured to the movable housing, the microphone assembly including a first microphone and a second microphone, the first microphone and the second microphone being disposed adjacent the first camera module and the second camera module, respectively.

8. The pan-tilt camera of claim 1, wherein the end faces of the light entry sides of the first and second camera modules are flush.

9. A pan-tilt camera according to any one of claims 1 to 8, wherein the drive assembly comprises a drive bracket and a first motor fixed to a bottom of the drive bracket, a second motor fixed to a top of the drive bracket, the first motor driving the drive bracket to rotate about a vertical axis relative to the fixed housing, the second motor driving the movable housing to rotate about a horizontal axis relative to the drive bracket.

10. The pan-tilt camera of claim 9, wherein the drive assembly further comprises a limit switch secured to the drive bracket, the limit switch operable to obtain information about the rotation of the movable housing relative to the fixed housing to a set limit.