Camera system comprising pitch-rotatable radar assembly

Abstract

The invention provides a camera system comprising a radar assembly capable of pitching rotation, the camera system comprises a camera, a supporting seat and a second shell, the second shell comprises a radar assembly and a rotating shaft which are arranged in the second shell, and the rotating shaft is connected with the supporting seat; the driving motor is adjacent to the second side of the second shell and is configured to provide driving force for the second shell, so that the second shell can rotate in a pitching manner relative to the supporting seat and the camera; the braking device is arranged in the cavity and comprises a braking motor, the braking motor is electrically connected with the conductive cable and fixedly connected with the second shell in a relatively static mode, and the braking motor comprises a lead screw extending out of the second shell; the brake pad is arranged on the outer side of the second shell and accommodates the lead screw, and the brake pad and the lead screw are coaxial; when the brake motor outputs driving force, the brake pad can be directly connected with the supporting shaft in an abutting mode through driving of the lead screw, so that the second shell is stably kept at the specified pitching angle after being driven by the driving motor to the specified pitching angle.

Description

Technical Field

[0001] The invention relates to a camera system comprising a radar assembly which can be tilted and rotatable. Background Art

[0002] Radar equipment can use radar scanning technology to scan the monitoring alarm range and collect and identify obstacle feature data in real time; cameras can collect video data within the monitoring alarm range so that other equipment in the early warning system can identify, analyze, and judge the collected data and generate early warning or alarm information. Currently, most cameras can have built-in or external radar equipment, but the radar equipment does not support angle adjustment, so it is necessary to provide an improved camera system. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a camera system including a pitch-rotatable radar component, which provides a braking module in the pitch-rotatable radar component, which can fix the relative position between the radar component and the camera system when the radar component stops rotating, thereby avoiding position deviation of the radar component due to gear transmission tooth gap.

[0004] In one embodiment of the present invention, a camera system is provided, comprising:

[0005] A camera, the camera comprising a first housing;

[0006] A support base, the support base comprising a first side wall and a second side wall, the first side wall and the second side wall are fastened to the first shell, and the first side wall and the second side wall are arranged opposite to each other in a horizontal direction;

[0007] A second housing, the second housing comprising:

[0008] A radar assembly and a rotating shaft extending in a horizontal direction are arranged in the cavity of the second shell, wherein the rotating shaft is connected to the support seat, wherein a first through hole and a second through hole are arranged on a first side of the second shell, wherein the second through hole is arranged below the first through hole, and the first through hole is used to pass a conductive cable of the radar assembly;

[0009] a driving motor, the driving motor being adjacent to a second side opposite to the first side in a horizontal direction and being configured to provide a driving force to the second housing so that the second housing can be tilted and rotated relative to the support base and the camera;

[0010] a brake device built into the cavity, the brake device comprising: a brake motor, the brake motor being arranged adjacent to the second through hole, the brake motor being electrically connected to the conductive cable penetrating the first through hole, the brake motor being relatively statically fixedly connected to the second housing, the brake motor comprising a lead screw extending out of the second through hole; and

[0011] A brake pad, which is arranged on the outside of the second housing and receives the screw rod, and the brake pad is coaxial with the screw rod;

[0012] Among them, the screw rod and the brake pad are constructed as follows: when the brake motor outputs a driving force, the brake pad can directly abut against the second side wall in the horizontal direction through the drive of the screw rod, and the force generated by the abutment enables the second shell to stably maintain at the specified pitch angle after being driven to the specified pitch angle by the drive motor.

[0013] In one embodiment, the brake pad comprises a longitudinally extending planar portion and a horizontally extending protruding portion, and an inner surface of the protruding portion has a thread matched with an outer surface of the lead screw.

[0014] In one embodiment, the brake pad is configured such that, under the driving force provided by the lead screw, the brake pad can move horizontally along the axial direction of the lead screw, thereby changing the horizontal distance between the brake pad and the second side wall.

[0015] In one embodiment, the brake device further comprises a guide rod, wherein the guide rod passes through the plane portion of the brake pad;

[0016] A horizontally extending hollow cylindrical protrusion is disposed on the edge of the second through hole, and the cylindrical protrusion receives the guide rod so that the brake pad keeps its central axis direction from deviating when it moves horizontally relative to the second side wall.

[0017] In one embodiment, the camera is a spherical camera, which includes a cylindrical shell rotatably connected to the first shell and a first lens assembly hung on the first shell, and the support base is connected to the cylindrical shell.

[0018] In one embodiment, the cylindrical housing can rotate horizontally relative to the first lens assembly, and the second housing and the support seat remain stationary relative to the cylindrical housing.

[0019] In one embodiment, a second lens assembly is further disposed in the second housing, and an optical axis of the second lens assembly intersects with a rotation axis of the cylindrical housing to form an acute angle.

[0020] Another embodiment of the present invention further provides a camera assembly, comprising:

[0021] A first housing, the first housing comprising a first lens assembly;

[0022] A second shell, the second shell comprising a first side and a second side arranged opposite to each other in a horizontal direction;

[0023] A support base, the support base comprising a first side wall and a second side wall, the first side wall receiving the first side, and the second side wall receiving the second side, so that the second shell is supported by the first side wall and the second side wall;

[0024] The second housing further comprises:

[0025] A sector gear member, wherein the sector gear member is firmly connected to the first side wall;

[0026] a driving motor, wherein the driving motor is meshingly connected with the sector gear member, so that the driving motor can drive the sector gear member and the second housing to pitch and rotate relative to the first housing; and

[0027] A braking device, comprising:

[0028] a brake motor, a lead screw of the brake motor extending out of the second housing;

[0029] A brake pad, the brake pad is arranged outside the second shell, the inner surface of the brake pad is provided with a thread, and the inner surface of the brake pad receives the outer surface of the screw rod;

[0030] The screw rod is constructed as follows:

[0031] When the brake motor rotates in the forward direction, the length of the screw rod extending out of the second housing remains unchanged, so that the rotational driving force output by the screw rod drives the brake pad to directly abut against any one of the first side wall and the second side wall, and under the abutment force, the second housing can remain relatively stationary with the first housing;

[0032] When the brake motor rotates in the reverse direction, the length of the screw rod extending out of the second shell remains unchanged, so that the reverse rotation driving force output by the screw rod drives the brake pad away from any one of the side walls, so that the second shell can pitch and rotate to a specified angle relative to the first shell under the driving force of the driving motor.

[0033] In one embodiment, when the brake motor rotates forward or reversely, the brake pad can move in a horizontal direction but does not rotate around the axis of the lead screw.

[0034] In one embodiment, the braking device comprises:

[0035] A bushing, the bushing is clamped between the screw rod and the second housing, wherein the bushing and the second housing are interference fit;

[0036] A first sealing ring, wherein the first sealing ring is sleeved on the outside of the screw rod and abuts against the bushing from the outside of the second housing to seal the second housing;

[0037] A limit screw is used to limit the first sealing ring from the outside of the second housing so as to limit the position of the bushing in the axial direction of the screw rod through the first sealing ring.

[0038] It can be seen from the above technical solution that the second housing 20 equipped with the radar assembly 25 is driven by the driving motor 30, and is supported by the rotating shaft L2 and pitches and rotates around the rotating shaft L2 relative to the support base 11 and the camera 1, wherein the transmission between the driving motor 30 and the rotating shaft L2 adopts gear transmission. When the driving motor 30 stops so that the second housing 20 stays at a specified angle, the gear gap may cause the second housing 20 to shake at the stop position for an interval equal to the gear gap. Although the absolute value of the gear gap is small, under the weighting of parameters such as lens magnification and shooting distance, it may cause a huge deviation in the test data of the radar assembly 25.

[0039] To address this problem, the present embodiment provides a brake assembly 40 for the second housing 20, which is used to fix the relative position of the rotatable member (the second housing 20) relative to the fixed member (the first housing 10), so that when the drive motor 30 stops, the second housing 20 and the first housing 10 are relatively stationary, thereby eliminating the shaking of the second housing 20 at the rest position caused by the gear clearance. The data reliability of the radar assembly 25 is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following drawings are only used to schematically illustrate and explain the present invention, and do not limit the scope of the present invention.

[0041] Figure 1 It is a structural schematic diagram of the camera system of the present invention.

[0042] Figure 2 It is a schematic structural diagram of the second housing in the camera system of the present invention.

[0043] Figure 3 It is a partial schematic diagram of the second shell in the camera system of the present invention.

[0044] Figure 4 is a cross-sectional view of the camera system of the present invention.

[0045] Figure 5a and Figure 5b It is a structural schematic diagram of the braking device in the present invention.

[0046] Figure 6a and Figure 6b It is a state schematic diagram of the brake module of the camera device of the present invention. DETAILED DESCRIPTION

[0047] In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific embodiments of the invention are now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0048] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0049] In order to simplify the drawings, only the parts related to the present invention are schematically shown in each figure, and do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0050] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0051] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0052] In this article, "equal", "same" and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use. Unless otherwise specified, the numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0053] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0054] In order to solve the problems in the prior art, the present invention provides a camera system including a pitch-rotatable radar assembly, which provides a braking module in the pitch-rotatable radar assembly, which can fix the relative position between the radar assembly and the camera system when the radar assembly stops rotating, thereby avoiding position deviation of the radar assembly due to gear transmission backlash.

[0055] like Figures 1 to 6b As shown, one embodiment of the present invention provides a camera system, comprising:

[0056] The camera 1 comprises a first housing 10;

[0057] The support base 11 includes a first side wall 11a and a second side wall 11b, the first side wall 11a and the second side wall 11b are fastened to the first shell 10, and the first side wall 11a and the second side wall 11b are arranged opposite to each other in a horizontal direction;

[0058] The second housing 20 includes:

[0059] A radar assembly 25 and a rotating shaft L2 extending in a horizontal direction are arranged in the cavity of the second housing 20, and the rotating shaft L2 is connected to the support seat 11, wherein a first through hole 21a and a second through hole 21b are arranged on a first side of the second housing 20, and the second through hole 21b is arranged below the first through hole 21a, and the first through hole 21a is used to pass a conductive cable of the radar assembly 25;

[0060] a driving motor 30, the driving motor 30 being adjacent to a second side opposite to the first side in a horizontal direction and being configured to provide a driving force to the second housing 20 so that the second housing 20 can pitch and rotate relative to the support base 11 and the camera 1;

[0061] A brake device 40 built into the cavity, the brake device 40 includes: a brake motor 41, the brake motor 41 is arranged adjacent to the second through hole 21b, the brake motor 41 is electrically connected to a conductive cable penetrating the first through hole 21a, the brake motor 41 is relatively stationary and fixedly connected to the second housing 20, and the brake motor 41 includes a lead screw 41a extending out of the second through hole 21b; and

[0062] A brake pad 42, which is disposed on the outside of the second housing 20 and receives the screw rod 41a, and the brake pad 42 is coaxial with the screw rod 41a;

[0063] Among them, the screw rod 41a and the brake pad 42 are constructed as follows: when the brake motor 41 outputs a driving force, the brake pad 42 can directly abut against the second side wall 11b in the horizontal direction through the drive of the screw rod 41a, and the force generated by the abutment enables the second shell 20 to stably maintain the specified pitch angle after being driven to the specified pitch angle by the drive motor 30.

[0064] In this embodiment, the camera system can be implemented as a ball camera with a radar component, wherein the first housing 10 is implemented as a main body part for carrying a ball camera and a gun camera, which is fixed to a carrier and is generally defined as a fixing member. The second housing 20 is rotatably supported on the first housing 10, and the second housing 20 carries a radar component 25. Further, the second housing 20 can also carry a second camera component such as a gun camera, which can be tilted and rotated relative to the first housing 10. Further, the first housing 10 can also carry a first camera component such as a ball camera fixed relative to the first housing 10.

[0065] The second housing 20 equipped with the radar assembly 25 is driven by the drive motor 30, supported by the rotation axis L2, and pitched and rotated relative to the support base 11 and the camera 1 around the rotation axis L2, wherein the transmission between the drive motor 30 and the rotation axis L2 adopts gear transmission. When the drive motor 30 stops so that the second housing 20 stays at a specified angle, the gear gap may cause the second housing 20 to shake at the stop position by an interval equal to the gear gap. Although the absolute value of the gear gap is small, under the weighting of parameters such as lens magnification and shooting distance, it may cause a huge deviation in the test data of the radar assembly 25.

[0066] To address this problem, the present embodiment provides a brake assembly 40 for the second shell 20, which is used to fix the relative position of the rotatable part (the second shell 20) with respect to the fixed part (the first shell 10), so that when the drive motor 30 stops, the second shell 20 and the first shell 10 are relatively stationary, thereby eliminating the shaking of the second shell 20 at the stationary position caused by gear clearance.

[0067] The second housing 20 is supported by a support base 11 extending outward from the first housing 10, and is supported on the support base 11 in a pitching and rotatable manner through a rotation axis L2. The support base 11 includes a first side wall 11a and a second side wall 11b that are arranged opposite to each other. Correspondingly, the second housing 20 also has a first side corresponding to the first side wall 11a, and a second side corresponding to the second side wall 11b. The first side and the second side are respectively used to set different components.

[0068] In a specific example, the driving motor 30 is arranged adjacent to the second side, and the braking device 40 is arranged adjacent to the first side. Moreover, the braking device 40 may share a conductive cable with the radar assembly 25, and the conductive cable may pass through the second housing 20 from the first side. The first side of the second housing 20 may have at least two through holes to connect the inside and the outside of the second housing 20. Among them, the first through hole 21a is used to pass the conductive cable of the radar assembly 25, and the second through hole 21b is used for the braking device 40 to pass through, so as to form a brake between the second housing 20 and the support seat 11. The second side of the second housing 20 is used to set the driving motor 30 that drives the second housing 20 to pitch and rotate.

[0069] The brake device 40 includes a brake motor 41, which is fixed to the second housing 20 to remain relatively still with the second housing 20, and has a lead screw 41a extending from the second housing 20 from the second through hole 21b. The lead screw 41a is formed as an output shaft of the brake motor 41, which rotates around an axial direction parallel to the rotation axis L2, and has a thread on the outer surface. A brake pad 42 is installed at one end of the lead screw 41a located outside the second housing 20. The brake pad 42 is used to form an abutment with the second side wall 11b of the support seat 11, so that the second housing 20 can be stably maintained at a specified pitch angle after being driven to a specified pitch angle by the drive motor 30 through the force generated by the abutment.

[0070] The lead screw 41a and the brake pad 42 are formed as follows: the lead screw 41a rotates around an axial direction parallel to the rotation axis L2, driving the brake pad 42 to extend or retract into the second shell 20 in a horizontal direction to reduce or increase the distance between the brake pad 42 and the second side wall 11b.

[0071] In this embodiment, although the brake pad 42 moves linearly along the direction of the rotation axis L2 driven by the lead screw 41a, the brake motor 41 is not limited to a linear motor, and the lead screw 41a is not limited to moving linearly along the direction of the second axis L2. The second drive motor 41 can be selected as a linear motor or a rotary motor, and the movement mode of the brake pad 42 can be limited by the connection structure between the brake pad 42 and the lead screw 41a.

[0072] As described above, the brake pad 42 moves linearly along the direction of the rotation axis L2 to Figure 6a When the second side wall 11b of the support base 11 is abutted against the second side wall 11b of the support base 11, the second shell 20 is connected between the support base 11, so that the second shell 20 and the first shell 10 are relatively stationary, so as to achieve the purpose of making the second shell 20 and the first shell 10 relatively stationary. Figure 6b As shown, when the second shell 20 is disengaged from the support base 11, the positional relationship in which the second shell 20 and the support base 11 are connected as one is released, thereby releasing the lock on the second shell 20 and the first shell 10, so that the second shell 20 is in a state where it can pitch and rotate relative to the first shell 10 under the drive of the drive motor 30.

[0073] Among them, the brake shaft 40 in this embodiment is used to eliminate the error caused by the backlash when the transmission structure is in a stationary state. Therefore, the drive motor 30 and the brake motor 41 do not work at the same time. The start of the brake motor 41 can respond to the stop signal of the drive motor 30 or the brake command issued by the user or the controller. When the brake motor 41 starts in response to the brake command, the drive motor 30 must be in a stopped state. The start of the drive motor 30 can also respond to the stop signal of the brake motor 41 or the start command issued by the user or the controller. When the drive motor 30 starts in response to the start command, the brake motor 41 must be in a stopped state.

[0074] The position of the brake device 40 deviates from the position of the rotating shaft 22 so as to apply a larger braking torque to the first housing 10 with a smaller braking force, thereby facilitating fixing the position of the second housing 20 and reducing the volume occupied by the brake device 40 .

[0075] The brake pad 42 includes a plane portion 421 extending longitudinally and a convex portion 422 extending horizontally, and the inner surface of the convex portion 422 has a thread that matches the outer surface of the lead screw 41 a.

[0076] The protrusion 422 passes through the second housing 20 from the second through hole 21b, and the plane portion 421 is used to fit and contact with the second side wall 11b so that the second housing 20 and the first housing 10 are relatively stationary. The protrusion 422 is threadedly matched with the outer surface of the lead screw 41a, and the plane portion 421 extends radially outward from the end of the protrusion 422 to form a longitudinally extending plane.

[0077] The brake pad 42 is configured such that, under the driving force provided by the screw rod 41 a , the brake pad 42 can move horizontally along the axial direction of the screw rod 41 a , thereby changing the horizontal distance between the brake pad 42 and the second side wall 11 b .

[0078] Specifically, the brake device 40 further includes a guide rod 426 , which passes through the plane portion 421 of the brake pad 42 ;

[0079] A horizontally extending hollow cylindrical protrusion 22 is provided at the edge of the second through hole 21b. The cylindrical protrusion 22 receives the guide rod 426 so that the brake pad 42 keeps its central axis direction from deviating when it moves horizontally relative to the second side wall 11b.

[0080] In this embodiment, the brake motor 41 can be selected as a common motor that outputs rotational power. The protrusion 422 is threadedly connected to the end of the screw 41a. By using a guide rod 426 that limits the protrusion 422 from rotating along with the screw 41a in the circumferential direction, the protrusion 422 does not rotate along with the screw 41a, but is screwed in or out of the end of the screw 41a through the thread, thereby realizing a linear movement along the extension direction of the screw 41a.

[0081] The first end of the guide rod 426 is fixed to the cylindrical protrusion 22 on the outer surface of the second housing 20, and the second end is passed through the plane portion 421. The guide rod 426 not only limits the rotation of the plane portion 421 in the circumferential direction, but also guides the moving direction of the plane portion 421.

[0082] In this embodiment, both the protrusion 422 and the lead screw 41a penetrate the second housing 20, specifically, penetrate the second side of the second housing 20. The protrusion 422 and the second housing 20 are in a relatively movable positional relationship. Based on the use environment of the camera device of this embodiment, a dynamic seal sealing structure needs to be provided at the position of the protrusion 422.

[0083] The brake pad 42 includes a bushing 423 sleeved on the outside of the protrusion 422, and the bushing 423 is clamped between the protrusion 422 and the second through hole 21b;

[0084] The diameter of the second through hole 21 b is greater than the diameter of the protruding portion 422 , and the bushing 423 is interference fit with the second through hole 21 b .

[0085] In this embodiment, the bushing 423 and the second through hole 21 b are relatively fixed by interference fit, and the protrusion 422 is movable relative to the bushing 423 , that is, there is a gap between the outer surface of the protrusion 422 and the inner surface of the bushing 423 .

[0086] One end of the bushing 423 forms a step portion 4231 extending radially outward to limit the bushing 423 axially to the outer surface of the second housing 20. The step portion 4231 fits the outer surface of the second housing 20, thereby forming a seal between the second housing 20 and the bushing 423.

[0087] Further, the brake pad 42 comprises:

[0088] The first sealing ring 424 is sleeved on the outside of the protruding portion 422 and is limited between the step portion 4231 and the flat portion 421 to seal the second through hole 21 b.

[0089] Depend on Figure 4 It can be seen that the first sealing ring 424 is sealed between the step portion 4231 and the flat portion 421 from the outside of the second shell 20, and is always sealed between the step portion 4231 and the flat portion 421 when the brake pad 42 moves linearly along the direction of the second axis L2, so as to seal the gap between the outer surface of the protrusion 422 and the inner surface of the bushing 423 from the outer end (step portion 4231) of the bushing 423.

[0090] Further, the brake pad 42 comprises:

[0091] A second sealing ring 425, which is sleeved outside the raised portion 422 and located between the bushing 423 and the raised portion 422;

[0092] The protruding portion 422 has a sealing groove 4213 for accommodating the second sealing ring 425 .

[0093] The sealing groove 4213 is used to accommodate the second sealing ring 425, but the depth of the sealing groove 4213 is less than the thickness of the second sealing ring 425, so that the second sealing ring 425 can protrude from the outer surface of the protrusion 422, thereby filling the gap between the outer surface of the protrusion 422 and the inner surface of the bushing 423. When the push rod 421 slides relative to the bushing 423, the second sealing ring 425 will be restricted in the sealing groove 4213 to always seal the gap between the outer surface of the protrusion 422 and the inner surface of the bushing 423 from the inside of the bushing 423.

[0094] A stop screw 427 is further disposed on the outer surface of the second housing 20, and the stop screw 427 stops the first sealing ring 424 from the outside of the second housing 20, so as to stop the bushing 423 in the axial direction of the screw rod 41a through the first sealing ring 424. The radial position of the bushing 423 is determined by the interference fit between the bushing 423 and the second through hole 21b.

[0095] For a reasonable layout in the second housing 20 , with the rotation axis L2 as a reference, the longitudinal height of the drive motor 30 is higher than the rotation axis L2 , while the height of the brake motor 41 is lower than the rotation axis L2 .

[0096] Based on the driving motor 30 and the brake motor 41 being adjacent to opposite sides of the second housing 20, the second housing 20 includes:

[0097] The support plate 23 is connected between the first side and the second side from the outside of the second shell 20 to balance the second shell 20 .

[0098] Since the drive motor 30 and the brake motor 41 are both driven structures arranged on one side of the second housing 20, in order to increase the stability of the single-sided force, the present embodiment provides a support plate 23, wherein the support plate 23 is formed as a structure connected between the first side and the second side to form a force transmission structure between the first side and the second side. Preferably, the support plate 23 is formed outside the second housing 20 and can be located at the bottom of the second housing 20 to support and protect the second housing 20.

[0099] In this embodiment, the camera 1 is a spherical camera, which includes a cylindrical shell 12 rotatably connected to the first shell 10 and a first lens assembly hung on the first shell 10 , and the support base 11 is connected to the cylindrical shell 12 .

[0100] The cylindrical housing 12 can rotate horizontally relative to the first lens assembly, and the second housing 20 and the support seat 11 remain stationary relative to the cylindrical housing 12 .

[0101] Furthermore, a second lens assembly 24 is disposed in the second housing 20 , and an optical axis of the second lens assembly 24 intersects with a rotation axis of the cylindrical housing 12 to form an acute angle.

[0102] In the longitudinal direction, the height of the second lens assembly 24 may be higher than the rotation axis L2, while the height of the radar module 25 is lower than the rotation axis L2.

[0103] Another embodiment of the present invention further provides a camera assembly, comprising:

[0104] A first housing 10, wherein the first housing 10 includes a first lens assembly;

[0105] The second housing 20 includes a first side 20a and a second side 20b that are arranged opposite to each other in a horizontal direction;

[0106] The support base 11 includes a first side wall 11a and a second side wall 11b, wherein the first side wall 11a receives the first side 20a, and the second side wall 11b receives the second side 20b, so that the second housing 20 is supported by the first side wall 11a and the second side wall 11b;

[0107] The second housing 20 further includes:

[0108] A sector gear member 31, the sector gear member 31 is fastened to the first side wall 11a;

[0109] A driving motor 30, wherein the driving motor 30 is meshedly connected with the sector gear member 31, so that the driving motor 30 can drive the sector gear member 31 and the second housing 20 to pitch and rotate relative to the first housing 10; and

[0110] The brake device 40 includes:

[0111] A brake motor 41, wherein a screw rod 41a of the brake motor 41 extends out of the second housing 20;

[0112] A brake pad 42, which is disposed outside the second housing 20, and an inner surface of the brake pad 42 is provided with a thread, and the inner surface of the brake pad 42 receives the outer surface of the screw rod 41a;

[0113] The screw rod 41a is constructed as follows:

[0114] When the brake motor 41 rotates forward, the length of the screw rod 41a extending out of the second housing 20 remains unchanged, so that the rotational driving force output by the screw rod 41a drives the brake pad 42 to directly abut against any one of the first side wall 11a and the second side wall 11b. Under the abutment force, the second housing 20 can remain relatively stationary with the first housing 10.

[0115] When the brake motor 41 rotates in the reverse direction, the length of the screw rod 41a extending out of the second shell 20 remains unchanged, so that the reverse rotation driving force output by the screw rod 41a drives the brake pad 42 away from any side wall, so that the second shell 20 can pitch and rotate to a specified angle relative to the first shell 10 under the driving force of the driving motor 30.

[0116] In this embodiment, although the brake pad 42 moves linearly along the direction of the rotation axis L2 driven by the lead screw 41a, the brake motor 41 is not limited to a linear motor, and the lead screw 41a is not limited to moving linearly along the direction of the second axis L2. The second drive motor 41 can be selected as a linear motor or a rotary motor, and the movement mode of the brake pad 42 can be limited by the connection structure between the brake pad 42 and the lead screw 41a.

[0117] As described above, the brake pad 42 moves linearly along the direction of the rotation axis L2 to Figure 6a When the second side wall 11b of the support base 11 is abutted against the second side wall 11b of the support base 11, the second shell 20 is connected between the support base 11, so that the second shell 20 and the first shell 10 are relatively stationary, so as to achieve the purpose of making the second shell 20 and the first shell 10 relatively stationary. Figure 6b As shown, when the second shell 20 is disengaged from the support base 11, the positional relationship in which the second shell 20 and the support base 11 are connected as one is released, thereby releasing the lock on the second shell 20 and the first shell 10, so that the second shell 20 is in a state where it can pitch and rotate relative to the first shell 10 under the drive of the drive motor 30.

[0118] Therefore, when the brake motor 41 rotates forward or reversely, the brake pad 42 can move in the horizontal direction but does not rotate around the axis of the screw shaft 41 a.

[0119] It can be seen from the above technical solution that the second housing 20 equipped with the radar assembly 25 is driven by the driving motor 30, and is supported by the rotating shaft L2 and pitches and rotates around the rotating shaft L2 relative to the support base 11 and the camera 1, wherein the transmission between the driving motor 30 and the rotating shaft L2 adopts gear transmission. When the driving motor 30 stops so that the second housing 20 stays at a specified angle, the gear gap may cause the second housing 20 to shake at the stop position for an interval equal to the gear gap. Although the absolute value of the gear gap is small, under the weighting of parameters such as lens magnification and shooting distance, it may cause a huge deviation in the test data of the radar assembly 25.

[0120] To address this problem, the present embodiment provides a brake assembly 40 for the second housing 20, which is used to fix the relative position of the rotatable member (the second housing 20) relative to the fixed member (the first housing 10), so that when the drive motor 30 stops, the second housing 20 and the first housing 10 are relatively stationary, thereby eliminating the shaking of the second housing 20 at the rest position caused by the gear clearance. The data reliability of the radar assembly 25 is improved.

[0121] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention, and are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention, such as combination, division or repetition of features, should be included in the scope of protection of the present invention.

Claims

1. A camera system, comprising: A camera (1), the camera (1) comprising a first housing (10); A support base (11), the support base (11) comprising a first side wall (11a) and a second side wall (11b), the first side wall (11a) and the second side wall (11b) being firmly connected to the first shell (10), and the first side wall (11a) and the second side wall (11b) being arranged opposite to each other in a horizontal direction; A second housing (20), wherein the second housing (20) comprises: A radar assembly (25) and a rotating shaft (L2) extending in a horizontal direction are arranged in the cavity of the second shell (20), wherein the rotating shaft (L2) is connected to the support seat (11), wherein a first through hole (21a) and a second through hole (21b) are arranged on a first side of the second shell (20), the second through hole (21b) is arranged below the first through hole (21a), and the first through hole (21a) is used to pass a conductive cable of the radar assembly (25); a drive motor (30), the drive motor (30) being adjacent to a second side opposite to the first side in a horizontal direction and being configured to provide a drive force to the second housing (20) so that the second housing (20) can be tilted and rotated relative to the support base (11) and the camera (1); a brake device (40) built into the cavity, the brake device (40) comprising: a brake motor (41), the brake motor (41) being arranged adjacent to the second through hole (21b), the brake motor (41) being electrically connected to the conductive cable penetrating the first through hole (21a), the brake motor (41) being relatively and statically fixedly connected to the second housing (20), the brake motor (41) comprising a lead screw (41a) extending out of the second through hole (21b); and a brake pad (42), the brake pad (42) being arranged on the outside of the second housing (20) and receiving the screw rod (41a), the brake pad (42) being coaxial with the screw rod (41a); The screw rod (41a) and the brake pad (42) are constructed such that when the brake motor (41) outputs a driving force, the brake pad (42) can directly abut against the second side wall (11b) in the horizontal direction through the drive of the screw rod (41a), and the force generated by the abutment enables the second shell (20) to stably maintain the specified pitch angle after being driven to the specified pitch angle by the drive motor (30).

2. The camera system according to claim 1, characterized in that The brake pad (42) comprises a longitudinally extending plane portion (421) and a horizontally extending protruding portion (422), wherein the inner surface of the protruding portion (422) has a thread that matches the outer surface of the lead screw (41a).

3. The camera system according to claim 2, characterized in that The brake pad (42) is constructed so that, under the driving force provided by the screw rod (41a), the brake pad (42) can move horizontally along the axial direction of the screw rod (41a), thereby changing the horizontal distance between the brake pad (42) and the second side wall (11b).

4. The camera system according to claim 3, characterized in that The braking device (40) further comprises a guide rod (426), wherein the guide rod (426) passes through the plane portion (421) of the brake pad (42); A horizontally extending hollow cylindrical protrusion (22) is provided on the edge of the second through hole (21b), and the cylindrical protrusion (22) receives the guide rod (426) so that the brake pad (42) maintains its central axis direction without deviation when it moves horizontally relative to the second side wall (11b).

5. The camera system according to claim 4, characterized in that The camera (1) is a spherical camera, comprising a cylindrical shell (12) rotatably connected to the first shell (10) and a first lens assembly hung on the first shell (10), and the support seat (11) is connected to the cylindrical shell (12).

6. The camera system according to claim 5, characterized in that The cylindrical housing (12) can rotate horizontally relative to the first lens assembly, and the second housing (20) and the support seat (11) remain stationary relative to the cylindrical housing (12).

7. The camera system according to claim 6, characterized in that A second lens assembly (24) is also disposed in the second housing (20), and the optical axis of the second lens assembly (24) intersects with the rotation axis of the cylindrical housing (12) to form an acute angle.

8. A camera assembly, characterized in that: include: A first housing (10), wherein the first housing (10) comprises a first lens assembly; A second shell (20), the second shell (20) comprising a first side (20a) and a second side (20b) arranged opposite to each other in a horizontal direction; A support base (11), the support base (11) comprising a first side wall (11a) and a second side wall (11b), the first side wall (11a) receiving the first side (20a), the second side wall (11b) receiving the second side (20b), so that the second shell (20) is supported by the first side wall (11a) and the second side wall (11b); The second housing (20) further comprises: a sector gear member (31), wherein the sector gear member (31) is firmly connected to the first side wall (11a); a driving motor (30), the driving motor (30) being meshingly connected with the sector gear member (31), so that the driving motor (30) can drive the sector gear member (31) and the second housing (20) to pitch and rotate relative to the first housing (10); and A braking device (40), wherein the braking device (40) comprises: A brake motor (41), a screw rod (41a) of the brake motor (41) extending out of the second housing (20); A brake pad (42), the brake pad (42) being arranged outside the second shell (20), the inner surface of the brake pad (42) being provided with a thread, and the inner surface of the brake pad (42) receiving the outer surface of the screw rod (41a); The screw rod (41a) is constructed as follows: When the brake motor (41) rotates in the forward direction, the length of the screw rod (41a) extending out of the second housing (20) remains unchanged, so that the rotational driving force output by the screw rod (41a) drives the brake pad (42) to directly abut against any one of the first side wall (11a) and the second side wall (11b), and under the abutment force, the second housing (20) can remain relatively stationary with the first housing (10); When the brake motor (41) rotates in the reverse direction, the length of the screw rod (41a) extending out of the second shell (20) remains unchanged, so that the reverse rotation driving force output by the screw rod (41a) drives the brake pad (42) away from any one of the side walls, so that the second shell (20) can pitch and rotate to a specified angle relative to the first shell (10) under the driving force of the driving motor (30).

9. The camera assembly according to claim 8, characterized in that: When the brake motor (41) rotates forward or reverse, the brake pad (42) can move in a horizontal direction but does not rotate around the axis of the screw rod (41a).

10. The camera assembly according to claim 9, characterized in that: The braking device comprises: A bushing (423), wherein the bushing (423) is clamped between the screw rod (41a) and the second housing (20), wherein the bushing (423) and the second housing (20) are interference fit; A first sealing ring (424), the first sealing ring (424) is sleeved on the outside of the screw rod (41a) and abuts against the bushing (423) from the outside of the second housing (20) to seal the second housing (20); A limiting screw (427), wherein the limiting screw (427) limits the first sealing ring (424) from the outside of the second housing (20) so as to limit the position of the bushing (423) in the axial direction of the screw rod (41a) through the first sealing ring (424).

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