Camera

Abstract

The utility model relates to a camera. Comprising a shell; the infrared sensor is arranged on the shell; the detection mechanism comprises a detection unit and a reference piece which are both arranged on the shell, one of the detection unit and the reference piece is fixedly connected with the shell, the other one of the detection unit and the reference piece is static or translated relative to the horizontal ground, and when the shell inclines relative to the horizontal ground, the detection unit rotates relative to the reference piece; the camera can determine the detection range of the infrared sensor according to the relative rotation of the detection unit relative to the reference piece. Therefore, in the installation process of the camera, the inclination angle of the camera can be adjusted according to the calculated detection range of the infrared sensor until the detection range of the infrared sensor meets the actual detection requirement. Therefore, the inclination angle of the camera can be adjusted according to the calculated detection range of the infrared sensor, so that the mounting precision of the camera is improved, and the camera has a reasonable shooting range.

Description

Technical Field

[0001] The present application relates to the technical field of cameras, and particularly to a camera. Background Art

[0002] For cameras used in security, an infrared sensor is usually adopted to detect the presence of moving objects. Specifically, when the infrared rays generated by the infrared sensor detect a moving animal or human, the camera will be triggered to record video. During the installation process of the camera, the camera is usually tilted at a certain angle relative to the horizontal ground, and different tilting angles of the camera correspond to different detection ranges of the infrared sensor. However, for traditional cameras, it is usually difficult to improve the installation accuracy of the camera during the installation process to ensure a reasonable detection range for the infrared sensor. Summary of the Utility Model

[0003] One technical problem solved by the present application is how to improve the installation accuracy of the camera so that the camera has a reasonable shooting range.

[0004] A camera includes:

[0005] A housing;

[0006] An infrared sensor disposed on the housing; and

[0007] A detection mechanism including a detection unit and a reference member both disposed on the housing, one of the detection unit and the reference member is fixedly connected to the housing and the other is stationary or translatable relative to the horizontal ground. When the housing is tilted relative to the horizontal ground, the detection unit rotates relative to the reference member, and the camera can determine the detection range of the infrared sensor according to the relative rotation of the detection unit relative to the reference member.

[0008] In one embodiment, the detection mechanism further includes a mounting bracket and a suspension member. The mounting bracket is fixedly connected to the housing. One end of the suspension member is rotatably connected to the mounting bracket and the other end is a free end. The center of gravity of the suspension member is spaced from the reference rotation axis around which the suspension member rotates. One of the reference member and the detection unit is fixedly connected to the housing and the other is fixedly connected to the suspension member.

[0009] In one embodiment, the detection unit includes a circuit board and an encoder. The circuit board is fixedly connected to the housing, and the encoder is fixedly disposed on the circuit board. The reference member is a magnetic member and is fixedly connected to the suspension member.

[0010] In one embodiment, the central axis of the reference member and the central axis of the encoder are on the same straight line.

[0011] In one embodiment, a rotation hole is formed in the suspension member, and the mounting bracket is rotationally engaged with the suspension member through the rotation hole.

[0012] In one embodiment, the mounting bracket includes a main body portion and a boss portion. The main body portion is fixedly connected to the housing. The boss portion protrudes from an end surface of the main body portion and is engaged with the rotation hole. A portion of the end surface outside the coverage of the boss portion forms a step surface surrounding the boss portion, and the step surface abuts against the suspension member.

[0013] In one embodiment, the detection mechanism further includes a limiting member. The limiting member includes a connecting portion and a limiting portion. The connecting portion protrudes from the limiting portion and is detachably connected to the mounting bracket. The suspension member abuts between the limiting portion and the step surface.

[0014] In one embodiment, the suspension member includes a suspension portion and a convex ring portion. The rotation hole is formed in the suspension portion. The convex ring portion protrudes from the suspension portion and surrounds the mounting hole. The convex ring portion abuts against the step surface, and the suspension portion is spaced from the step surface.

[0015] In one embodiment, a receiving hole is formed in the suspension member, and at least a part of the reference member and the detection unit are received in the receiving hole.

[0016] In one embodiment, the housing has a receiving cavity, and the detection mechanism is received in the receiving cavity.

[0017] One technical effect of an embodiment of the present application is that in view of the fact that both the detection unit and the reference member are provided on the housing, one of the detection unit and the reference member is fixedly connected to the housing and the other is stationary or translated relative to the horizontal ground. When the housing moves and tilts relative to the horizontal ground, the detection unit rotates relative to the reference member, and the camera can calculate the detection range of the infrared sensor according to the relative rotation of the detection unit relative to the reference object. During the installation process of the camera, the tilt angle of the camera can be adjusted according to the calculated detection range of the infrared sensor until the detection range of the infrared sensor meets the actual detection requirements. Therefore, according to the calculated detection range of the infrared sensor, the tilt angle of the camera can be adjusted, thereby improving the installation accuracy of the camera, ensuring that the infrared sensor has a reasonable detection range, and enabling the camera to have a reasonable shooting range corresponding to the reasonable detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective three-dimensional structure diagram of a camera provided for an embodiment.

[0019] Figure 2 is Figure 1 the exploded structural schematic diagram of the camera shown

[0020] Figure 3 is Figure 1 the planar perspective structural schematic diagram of the camera shown in the horizontal state

[0021] Figure 4 is Figure 3 the partial side view structural schematic diagram of

[0022] Figure 5 is Figure 1 the planar perspective structural schematic diagram of the camera shown in the tilted state

[0023] Figure 6 is Figure 5 the partial side view structural schematic diagram of

[0024] Figure 7 is Figure 1 the three - dimensional structural schematic diagram of the detection mechanism in the camera shown

[0025] Figure 8 is Figure 7 the exploded structural schematic diagram of the detection mechanism shown

[0026] Figure 9 is Figure 7 the planar sectional structural schematic diagram of the detection mechanism shown

[0027] Figure 10 is Figure 7 the three - dimensional sectional structural schematic diagram of the detection mechanism shown

[0028] Reference numerals: camera 10, reference rotation axis 11, plane 12, housing 100, accommodation cavity 110, infrared sensor 200, detection mechanism 300, installation unit 310, mounting bracket 311, main body portion 3111, stepped surface 3111a, boss portion 3112, suspension member 312, suspension portion 3121, rotation hole 3121a, receiving hole 3121b, convex ring portion 3122, limiting member 313, connecting portion 3131, limiting portion 3132, detection unit 320, circuit board 321, encoder 322, reference surface 3221, reference member 330, reference magnetic line 331. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present application more apparent and understandable, the following detailed description of the specific embodiments of the present application will be given in conjunction with the accompanying drawings. A lot of specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0030] In the description of the present application, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings. These are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0031] In addition, if terms such as "first" and "second" appear, these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0032] In the present application, unless otherwise clearly defined and limited, if terms such as "install", "connect", "join", "fix", etc. appear, these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or similar descriptions, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0035] Refer to Figure 1 , Figure 2 and Figure 3, a camera 10 provided by an embodiment of the present application includes a housing 100, an infrared sensor 200, and a detection mechanism 300. The infrared sensor 200 is disposed on the housing 100. The detection mechanism 300 includes a detection unit 320 and a reference member 330. The reference member 330 can be disposed at an interval from the detection unit 320. One of the detection unit 320 and the reference member 330 is fixedly connected to the housing 100 and the other is stationary or translates relative to the horizontal ground. When the housing 100 moves and tilts relative to the horizontal ground 12 of the earth, the detection unit 320 generates a relative rotation relative to the reference member 330. The camera 10 can calculate the detection range of the infrared sensor 200 according to the relative movement of the detection unit 320. By disposing the reference member 330 at an interval from the detection unit 320, the resistance to the relative rotation directly generated between the reference member 330 and the detection unit 320 can be reduced, and the wear can also be reduced. Of course, it also enables the detection unit 320 to more accurately detect the relative rotation amplitude between the reference member 330 and the detection unit 320, thereby improving the fine measurement accuracy and sensitivity of the detection unit 320. The reference member 330 and the detection unit 320 are disposed at an interval, which can be understood as that there is a certain gap between the reference member 330 and the detection unit 320 and they are kept in a non-contact relationship. For example, the reference member 330 and the detection unit 320 can be disposed at an interval in the thickness direction of the reference member 330, so that the gap between the reference member 330 and the detection unit 320 has a certain width in the thickness direction of the reference member 330. In other embodiments, when the frictional resistance is small, the reference member 330 and the detection unit 320 can also be in contact with each other.

[0036] In some embodiments, for example, the detection unit 320 can be fixedly connected to the housing 100, and the reference member 330 can be disposed on a support body for mounting the camera 10. When the housing 100 rotates relative to the support body, the detection unit 320 moves with the housing 100, and the reference member 330 remains stationary relative to the horizontal ground all the time, so that the relative rotation between the detection unit 320 and the reference member 330 can be realized. Another example is that the reference member 330 can be fixedly connected to the housing 100, and the detection unit 320 can be disposed on a support body for mounting the camera 10, so that the relative rotation between the detection unit 320 and the reference member 330 can also be realized.

[0037] See Figure 3 , Figure 4 and Figure 5, in some embodiments, both the detection unit 320 and the reference member 330 are disposed on the housing 100, which can be understood as that the detection unit 320 and the reference member 330 both have a connection relationship with the housing 100. The housing 100 can be generally cylindrical, and the housing 100 has a receiving cavity 110, and the detection mechanism 300 can be received within the receiving cavity 110. The infrared sensor 200 can be located outside the receiving cavity 110, and the infrared sensor 200 can be embedded in the housing 100. The infrared sensor 200 is capable of generating infrared rays, that is, the infrared sensor 200 detects moving animals or humans through infrared radiation. When the infrared ray sensor detects a moving object, the infrared ray sensor will generate feedback information to trigger the camera 10 to record the moving object, so as to realize the monitoring function of the camera 10. During the installation of the entire camera 10, the camera 10 needs to be inclined at a certain angle α relative to the horizontal ground 12. For example, when the central axis of the housing 100 is parallel to the horizontal ground 12, it can be understood that the camera 10 is horizontally disposed, and when the central axis of the housing 100 forms an angle with the horizontal ground 12, it can be understood that the camera 10 is inclined. Generally, when the inclination angle α is larger, the detection range of the infrared sensor is smaller, so that the shooting range of the camera 10 is smaller. Therefore, during the actual installation of the camera 10, it is necessary to ensure that the camera 10 has an accurate inclination angle relative to the horizontal ground 12 so that the infrared sensor has a reasonable detection range, and finally ensure that the camera 10 has a reasonable shooting range.

[0038] Refer to Figure 7 , Figure 8 and Figure 9 , in some embodiments, the detection mechanism 300 further includes a mounting unit 310. The mounting unit 310 includes a mounting bracket 311 and a suspension member 312. The mounting bracket 311 is fixedly connected to the housing 100, and the mounting bracket 311 can form a detachable connection relationship with the housing 100. For example, the mounting bracket 311 is bolted to the housing 100. One end of the suspension member 312 is a rotating end and is rotatably connected to the mounting bracket 311, and the other end of the suspension member 312 is a free end. The suspension member 312 can rotate relative to the mounting bracket 311 about the reference rotation axis 11. The center of gravity of the suspension member 312 is spaced from the reference rotation axis 11 of the suspension member 312, that is, the center of gravity of the suspension member 312 does not fall on the rotation axis 11. For example, the suspension member 312 can be an eccentric weight or can be a cylindrical rod-like structure, as long as it is ensured that the center of gravity of the suspension member 312 does not fall on the rotation axis 11. One of the reference member 330 and the detection unit 320 is fixedly connected to the housing 100 and the other is fixedly connected to the suspension member 312. For example, the reference member 330 is fixedly connected to the suspension member 312 and the detection unit 320 is fixedly connected to the housing 100. In other embodiments, the detection unit 320 can be fixedly connected to the suspension member 312 and the reference member 330 can be fixedly connected to the housing 100.

[0039] Referring to Figure 4 and Figure 6 Figure 6 When the housing 100 rotates about the above-mentioned reference rotation axis 11 to adjust the inclination angle of the housing 100 and the entire camera 10 relative to the horizontal ground 12, relative rotation will occur between the mounting bracket 311 and the suspension member 312, and the suspension member 312 will always remain vertical and perpendicular to the horizontal ground 12. That is, during the process of changing the inclination angle of the housing 100 and the entire camera 10 relative to the horizontal ground 12, the angle between the surface of the suspension member 312 and the horizontal ground 12 always remains unchanged, that is, the suspension member 312 performs translational motion. Therefore, in view of the fact that the reference member 330 is fixedly connected to the suspension member 312, and the detection unit 320 is fixedly connected to the housing 100, when adjusting the inclination angle between the housing 100 and the camera 10 relative to the horizontal ground 12, the angle between the surface of the reference member 330 and the horizontal ground 12 will always remain unchanged and perform translational motion relative to the horizontal ground 12, while the angle between the surface of the detection unit 320 and the horizontal ground 12 changes, thus realizing the relative motion between the detection unit 320 and the reference member 330.

[0040] It can be understood that during the process of changing the inclination angle of the housing 100 and the entire camera 10 relative to the horizontal ground 12, in view of the fact that the center of gravity of the suspension member 312 is spaced from the reference rotation axis 11 of the suspension member 312, if the suspension member 312 follows the bracket and the housing 100 to perform synchronous motion relative to the horizontal ground 12, the gravity of the suspension member 312 will generate a rotational torque on the suspension member 312, causing the suspension member 312 to rotate relative to the bracket, thereby preventing the suspension member 312 from following the bracket and the housing 100 to perform synchronous motion relative to the horizontal ground 12. Under the action of gravity, the suspension member 312 always remains vertical, and finally the angle between the surface of the suspension member 312 and the horizontal ground 12 always remains unchanged, that is, the suspension member 312 performs translational motion. When the reference member 330 is fixed on the suspension member 312, it also makes the angle between the surface of the reference member 330 and the horizontal ground 12 always remain unchanged, and the reference member 330 performs translational motion.

[0041] Referring to Figure 7 、 Figure 8 and Figure 10, in some embodiments, the detection unit 320 includes a circuit board 321 and an encoder 322. The circuit board 321 is fixedly connected to the housing 100, and the encoder 322 is fixedly arranged on the circuit board 321. The encoder 322 can be rectangular, square, etc. The reference member 330 is a magnetic member and is fixedly connected to the suspension member 312. The reference member 330 can be circular. The central axis of the reference member 330 and the central axis of the encoder 322 can be on the same straight line. The central axis of the reference member 330 extends along the thickness direction of the reference member 330, and the central axis of the encoder 322 extends along the thickness direction of the reference member 330. For example, it can be collinear with the reference rotation axis 11 around which the suspension member 312 rotates. Of course, the central axis of the reference member 330 can also be on a different straight line from the central axis of the encoder 322. During the process of the change in the inclination angle of the housing 100 and the entire camera 10 relative to the horizontal ground 12, the included angle between the surface of the reference member 330 and the horizontal ground 12 remains constant. Taking a magnetic line of force parallel to the horizontal ground 12 of the reference member 330 as the reference magnetic line 331, obviously, this reference magnetic line 331 is always parallel to the horizontal ground 12. Refer to Figure 4 , when the camera 10 is horizontally set and in a horizontal state, the reference magnetic line 331 is parallel to the reference surface 3221 of the encoder 322. Refer to Figure 6 , when the camera 10 is inclinedly set and in an inclined state, the encoder 322 moves relative to the horizontal ground 12 following the housing 100, making the reference plane form an included angle with the reference magnetic line 331. This included angle can be equal to the inclination angle of the camera 10. Therefore, according to the movement of the encoder 322 relative to the reference member 330, the inclination angle of the camera 10 can be obtained. Subsequently, the camera 10 can calculate the detection range corresponding to the inclination angle of the infrared sensor 200 based on the inclination angle, and finally calculate the shooting range of the camera 10. Therefore, the camera 10 can calculate the detection range of the infrared sensor 200 at different inclination angles.

[0042] Specifically, the detection range of the infrared sensor 200 when the camera 10 is in a horizontal state can be used as a reference value. According to the change amount of the inclination angle of the camera 10, the ratio of the detection range of the infrared sensor 200 when the camera 10 is in an inclined state to the reference value can be obtained. Thus, the detection ranges of the infrared sensor 200 when the camera 10 is at different inclination angles can be calculated, and finally the shooting ranges of the camera 10 at different inclination angles can be obtained. The detection range of the infrared sensor 200 can be transmitted to a visualization device such as a smartphone or a display screen, enabling the user to intuitively understand whether the detection range meets the detection requirements, and then adjust the inclination angle of the camera 10 until the detection range of the external sensor meets the actual detection requirements.

[0043] In other embodiments, the reference member 330 may not be magnetic, and the encoder 322 may determine the movement angle of the encoder 322 relative to the reference member 330 directly through principles such as light reflection, so that the camera 10 can calculate the detection range of the infrared sensor 200 based on this movement angle, and finally obtain the shooting range of the camera 10.

[0044] Referring to Figure 8 、 Figure 9 and Figure 10 , in some embodiments, a rotation hole 3121a is formed in the suspension member 312, and the rotation hole 3121a is rotationally engaged with the mounting bracket 311. The mounting bracket 311 includes a main body portion 3111 and a boss portion 3112. The main body portion 3111 is fixedly connected to the housing 100. For example, the main body portion 3111 is bolted to the housing 100. The boss portion 3112 protrudes from the end face of the main body portion 3111. The boss portion 3112 is rotationally engaged with the rotation hole 3121a. The portion of the end face of the main body portion 3111 outside the coverage of the boss portion 3112 will form a stepped surface 3111a. The stepped surface 3111a is disposed around the boss portion 3112, and the stepped surface 3111a abuts against the suspension member 312. By abutting the stepped surface 3111a against the suspension member 312, the suspension member 312 can be limited along the extension direction of the reference rotation axis 11, avoiding jamming of the suspension member 312 relative to the mounting bracket 311 during rotation, and improving the rotation accuracy of the suspension member 312 relative to the mounting bracket 311.

[0045] Referring to Figure 8 、 Figure 9 and Figure 10 , in some embodiments, the mounting unit 310 further includes a limiting member 313. The limiting member 313 may include a connecting portion 3131 and a limiting portion 3132. The cross-sectional dimension of the limiting portion 3132 is larger than that of the connecting portion 3131. The connecting portion 3131 protrudes from the limiting portion 3132 and is detachably connected to the mounting bracket 311. The suspension member 312 abuts between the limiting portion 3132 and the stepped surface 3111a, so that the limiting portion 3132 and the stepped surface 3111a jointly limit the suspension member 312 along the extension direction of the reference rotation axis 11, preventing the suspension member 312 from falling off the boss portion 3112, and further improving the rotation accuracy of the suspension member 312 relative to the mounting bracket 311. For example, the limiting member 313 may be a bolt, the connecting portion 3131 is the rod portion of the bolt, and the limiting portion 3132 is the cap portion of the bolt.

[0046] Referring to Figure 8 、 Figure 9 and Figure 10, in some embodiments, the suspension member 312 includes a suspension portion 3121 and a convex ring portion 3122. The rotation hole 3121a is provided on the suspension portion 3121. The convex ring portion 3122 protrudes from the suspension portion 3121. The convex ring portion 3122 surrounds the mounting hole. The convex ring portion 3122 abuts against the step surface 3111a, and the suspension portion 3121 is spaced from the step surface 3111a. By abutting the convex ring portion 3122 against the step surface 3111a, it is avoided that the suspension portion 3121 abuts against the step surface 3111a. In this way, the contact area between the suspension member 312 and the step surface 3111a can be reduced, thereby reducing the frictional resistance during the rotation of the suspension member 312 relative to the mounting bracket 311, ensuring the smoothness of the rotation of the suspension member 312 relative to the mounting bracket 311, and ensuring that the angle between the surface of the suspension member 312 and the horizontal ground 12 remains constant during the change of the tilt angle of the camera 10, that is, ensuring that the suspension member 312 is always vertically arranged and keeps translational motion.

[0047] Refer to Figure 9 , in some embodiments, a receiving hole 3121b is formed in the suspension portion 3121. The reference member 330 and the detection unit 320 are at least partially received in the receiving hole 3121b. For example, the reference member 330 can be received in the receiving hole 3121b, so that the reference member 330 makes full use of the existing space of the receiving hole 3121b and avoids the reference member 330 occupying the space outside the receiving hole 3121b, thereby improving the structural compactness of the entire camera 10.

[0048] In summary, according to the movement of the encoder 322 relative to the reference member 330, the tilt angle of the camera 10 can be obtained. Then, the camera 10 can calculate the detection range of the infrared sensor 200 corresponding to the tilt angle according to the tilt angle, and finally calculate the shooting range of the camera 10, that is, the camera 10 can calculate the detection range of the infrared sensor 200 at different tilt angles. During the installation process of the camera 10, the tilt angle of the camera 10 can be adjusted until the detection range of the infrared sensor 200 meets the actual detection requirements. Therefore, according to the calculated detection range of the infrared sensor 200, the tilt angle of the camera 10 can be adjusted, thereby improving the installation accuracy of the camera 10 and ensuring that the camera 10 has a reasonable shooting range.

[0049] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0050] The above-described embodiments merely represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patented application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A camera, characterized in that, Comprising: A housing; An infrared sensor disposed on the housing; And A detection mechanism, including a detection unit and a reference member both disposed on the housing, one of the detection unit and the reference member is fixedly connected to the housing and the other is stationary or translatory relative to the horizontal ground. When the housing is inclined relative to the horizontal ground, the detection unit generates a relative rotation relative to the reference member, and the camera can determine the detection range of the infrared sensor according to the relative rotation of the detection unit relative to the reference member.

2. The camera according to claim 1, characterized in that, The detection mechanism further includes a mounting bracket and a suspension member. The mounting bracket is fixedly connected to the housing. One end of the suspension member is rotatably connected to the mounting bracket and the other end is a free end. The center of gravity of the suspension member is spaced from the reference rotation axis around which the suspension member rotates. One of the reference member and the detection unit is fixedly connected to the housing and the other is fixedly connected to the suspension member.

3. The camera according to claim 2, characterized in that, The detection unit includes a circuit board and an encoder. The circuit board is fixedly connected to the housing, and the encoder is fixedly disposed on the circuit board. The reference member is a magnetic member and is fixedly connected to the suspension member.

4. The camera according to claim 3, characterized in that The central axis of the reference member and the central axis of the encoder are located on the same straight line.

5. The camera according to claim 2, wherein, A rotation hole is formed in the suspension member, and the mounting bracket is rotatably engaged with the suspension member through the rotation hole.

6. The camera according to claim 5, characterized in that The mounting bracket includes a main body portion and a convex platform portion. The main body portion is fixedly connected to the housing. The convex platform portion protrudes from an end surface of the main body portion and is engaged with the rotation hole. A portion of the end surface outside the coverage of the convex platform portion forms a step surface surrounding the convex platform portion, and the step surface abuts against the suspension member.

7. The camera according to claim 6, wherein The detection mechanism further includes a limiting member. The limiting member includes a connecting portion and a limiting portion. The connecting portion protrudes from the limiting portion and is detachably connected to the mounting bracket. The suspension member abuts between the limiting portion and the step surface.

8. The camera according to claim 6, characterized in that, The suspension member includes a suspension portion and a convex ring portion. The rotation hole is formed in the suspension portion. The convex ring portion protrudes from the suspension portion and surrounds the rotation hole. The convex ring portion abuts against the step surface, and the suspension portion is spaced from the step surface.

9. The camera according to claim 2, characterized in that A receiving hole is formed in the suspension member, and at least a part of the reference member and the detection unit is received in the receiving hole.

10. The camera according to claim 1, wherein The housing has a receiving cavity, and the detection mechanism is received in the receiving cavity.

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