WO2019184578A1 - 一种双目摄像机 - Google Patents

一种双目摄像机 Download PDF

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Publication number
WO2019184578A1
WO2019184578A1 PCT/CN2019/073354 CN2019073354W WO2019184578A1 WO 2019184578 A1 WO2019184578 A1 WO 2019184578A1 CN 2019073354 W CN2019073354 W CN 2019073354W WO 2019184578 A1 WO2019184578 A1 WO 2019184578A1
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WO
WIPO (PCT)
Prior art keywords
lens
monitoring
binocular camera
motor
cover
Prior art date
Application number
PCT/CN2019/073354
Other languages
English (en)
French (fr)
Inventor
吴燕
叶展
颜财盛
李杨
关宏杰
宋戈
Original Assignee
杭州海康威视数字技术股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201820445726.XU external-priority patent/CN208094668U/zh
Priority claimed from CN201820472706.1U external-priority patent/CN208190773U/zh
Priority claimed from CN201820460020.0U external-priority patent/CN208094671U/zh
Priority claimed from CN201810279459.8A external-priority patent/CN110320730B/zh
Application filed by 杭州海康威视数字技术股份有限公司 filed Critical 杭州海康威视数字技术股份有限公司
Publication of WO2019184578A1 publication Critical patent/WO2019184578A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
    • F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Definitions

  • the present application relates to the field of camera technologies, and in particular, to a binocular camera.
  • the two monitoring lenses are often set to be non-rotatable, so that only a fixed area can be monitored, and the monitoring range is small, and the monitoring area cannot be adjusted. Therefore, it is desirable to have a technical solution to overcome the above drawbacks.
  • the present application provides a binocular camera to overcome the above drawbacks.
  • the present application provides a binocular camera, including: a first monitoring component, a second monitoring component, and a driving device,
  • the first monitoring component includes a first monitoring lens and a first window located in front of the first monitoring lens;
  • the second monitoring component includes a second monitoring lens and a second window located in front of the second monitoring lens, and an angle of view of the second monitoring lens is smaller than an angle of view of the first monitoring lens;
  • the driving device includes a second driving unit that is drivingly coupled to the second monitoring lens and configured to drive the second monitoring lens to pitch about a rotation axis thereof within a set range.
  • the second monitoring lens of the two monitoring lenses of the binocular camera of the present application can be rotated by the second driving unit in the driving device, so that the binocular camera can monitor a larger range, and It has a larger scope of application, for example, to implement a smart camera.
  • FIG. 1 is a schematic overall view of a binocular camera according to an embodiment of the present application.
  • FIG. 2 is an exploded perspective view of the first monitoring component of the binocular camera of FIG. 1.
  • Figure 3 is a schematic perspective view of the decorative cover of the first monitoring assembly of Figure 2.
  • FIG. 4 is an exploded perspective view of the front cover assembly of the first monitoring assembly shown in FIG. 2.
  • Figure 5 is an exploded perspective view of the motor cover assembly of the first monitoring assembly of Figure 2.
  • Figure 6 is a schematic perspective view of the back cover of the first monitoring assembly shown in Figure 2.
  • FIG. 7 is a schematic view showing the meshing relationship between the first output gear and the sun gear on the first motor in the first monitoring assembly shown in FIG. 2.
  • Figure 8 is a schematic cross-sectional view of the first monitoring assembly of the binocular camera of Figure 1.
  • FIG. 9 is a schematic overall structural view of the binocular camera shown in FIG. 1.
  • FIG. 9 is a schematic overall structural view of the binocular camera shown in FIG. 1.
  • FIG. 10 is a schematic diagram showing the principle of the pitch rotation operation of the second monitoring component in the binocular camera shown in FIG. 1.
  • FIG. 10 is a schematic diagram showing the principle of the pitch rotation operation of the second monitoring component in the binocular camera shown in FIG. 1.
  • FIG. 11 is a schematic diagram showing the principle of the pitch rotation operation of the first monitoring component in the binocular camera shown in FIG. 1.
  • FIG. 11 is a schematic diagram showing the principle of the pitch rotation operation of the first monitoring component in the binocular camera shown in FIG. 1.
  • Figure 12 is a schematic perspective view of the first monitoring assembly of the binocular camera of Figure 1.
  • Figure 13 is an exploded perspective view of the second monitoring component of the binocular camera of Figure 1.
  • FIG. 14 is an exploded perspective view of the lens assembly of the second monitoring component of the binocular camera of FIG. 1.
  • the binocular camera of one embodiment of the present application has two monitoring lenses, and the two monitoring lenses are set to have different viewing angles, one of the monitoring lenses can be set as a zoom lens, and the other monitoring lens can be set as a fixed focus lens. In another embodiment, both monitoring lenses can be set as zoom lenses.
  • the binocular camera of the present application can be easily used as a smart integrated camera.
  • the binocular camera according to the embodiment of the present application is capable of capturing and capturing local details such as faces in the screen while performing panoramic monitoring.
  • the first monitoring lens is used for panoramic monitoring
  • the second monitoring lens is used for face capturing.
  • a binocular camera includes: a first monitoring component, a second monitoring component, and a driving device.
  • the first monitoring component includes a first monitoring lens and a first window located in front of the first monitoring lens
  • the second monitoring component includes a second monitoring lens and a second window located in front of the second monitoring lens
  • the driving device includes a second driving
  • the second driving unit is connected to the second monitoring lens and is configured to drive the second monitoring lens to rotate about the rotation axis within a set range.
  • the first monitoring assembly includes a front cover 23, a rear cover 5, and a first monitoring lens 3.
  • the first monitoring lens 3 is a fixed focus lens, and the front cover 23 and the rear cover 5 are sealingly fitted to form a sealed lens cavity, and the first monitoring lens 3 is disposed in the lens cavity.
  • the entire first monitoring component has a smaller size.
  • the first monitoring assembly is rotatably mounted on the casing 10 of the binocular camera.
  • the second monitoring component includes a second monitoring lens 3b.
  • the second monitoring lens 3b is a zoom lens, and the angle of view of the second monitoring lens 3b is smaller than the angle of view of the first monitoring lens 3.
  • the second monitoring component has a larger size due to the setting of the focusing function.
  • a sealed third chamber is disposed in the body of the binocular camera, and the second monitoring unit and the main board 12 and the like are disposed in the third chamber.
  • the drive unit includes a second drive unit that drives the second monitor lens to rotate about its axis of rotation.
  • the driving device may further include a first driving unit that drives the first monitoring lens to rotate about its rotation axis.
  • the first driving unit and the second driving unit can adopt driving components such as a stepping motor, a solenoid, a hydraulic cylinder, an electromagnet, etc., and can also adopt a gear transmission, a worm gear transmission, a four-link transmission (preferably a crank). Transmission structure such as pendulum mechanism, chain drive, belt drive (such as timing belt). This is within the scope of this application.
  • the axis of rotation of the first monitoring lens 3 or of the entire first monitoring assembly is perpendicular to the axis of the first monitoring lens 3.
  • the axis of the first monitoring lens 3 refers to the optical axis.
  • the axis of rotation can extend horizontally and can also be arranged to extend vertically.
  • the first driving unit drives the first monitoring lens 3 to pitch and rotate about the rotation axis, or horizontally to the left and right; the second driving unit drives the second monitoring lens 3b to pitch and rotate about the rotation axis, or to rotate horizontally left and right.
  • the range of pitch rotation of the first monitoring lens 3 (referring to the magnitude of the rotatable angle, or the magnitude of the adjustable angle) is set to 35 degrees to 45 degrees (eg, 40 degrees, ie, ⁇ 20 degrees). Or the left and right rotation range of the first monitoring lens 3 is set to 35 degrees to 45 degrees (for example, 40 degrees, that is, ⁇ 20 degrees).
  • the pitch rotation range of the second monitoring lens 3b (referring to the magnitude of the rotatable angle, or the size of the adjustable angle) is set to 25 degrees to 35 degrees (eg, 30 degrees, ie, ⁇ 15 degrees). ), or the left and right rotation range of the second monitoring lens 3 is set to 25 degrees to 35 degrees (for example, 30 degrees, that is, ⁇ 15 degrees).
  • the angle of view of the first monitoring lens 3 and the second monitoring lens 3b can be set as needed.
  • the angle of view of the first monitoring lens 3 is set in the range of 100° to 120° (for example, 110°)
  • the angle of view of the second monitoring lens 3b is in the range of 50° to 70° (for example, 60°). .
  • the size of the first window 9 and the second window 9b is set to avoid the first monitoring lens 3 and the second monitoring lens 3b in the case where the first monitoring lens 3 and/or the second monitoring lens 3b are rotated within the set range
  • the acquired image appears black borders due to the inner contours of the first window 9 and the second window 9b. That is to say, under normal use, the first window 9 and the second window 9b do not block the effective light for forming an image, and the inner contours of the first window 9 and the second window 9b do not appear in the image formed by the lens. on.
  • the resolutions of the respective image sensors of the first monitoring lens 3 and the second monitoring lens 3b can be set as needed.
  • the resolution of the image sensor corresponding to the second monitoring lens 3b is higher than the resolution of the image sensor corresponding to the first monitoring lens 3.
  • the image acquired by the second monitoring lens 3b has a higher resolution and can represent clearer and more specific details.
  • the first window and the second window can be set to any suitable shape.
  • the shape, size, and relative position of the window can be determined based on the specific imaging requirements of the lens.
  • the first window 9 is circular and the second window 9b is rectangular, see FIG.
  • the first window and the second window are both set to a rectangle.
  • the area of the first window 9 is smaller than the area of the second window 9b.
  • the area of the second window 9b is three times or more the area of the first window 9.
  • the shape and size of the first window and the second window should be set so that no black borders appear on the image during the imaging of the lens. That is to say, in the case of conventional imaging, the edges of the first window and the second window should not appear on the image acquired by the lens (the image acquired by the image sensor).
  • the first monitoring lens 3 is disposed under the second monitoring lens 3b, and the binocular camera includes two fill lights, and the fill light is flush with the first monitoring lens 3 in height, and is in the One monitor lens 3 is symmetrically disposed on each of the left and right sides.
  • the binocular camera further comprises a fill light drive unit, the fill light drive unit driving the fill light to rotate relative to the first monitor lens 3 and/or the second monitor lens 3b.
  • the entire first monitoring lens rotating structure includes: a decorative cover 1, a front cover assembly 2, a lens 3, a rotating shaft pressing plate 4, a rear cover 5, a first motor 6, a motor cover assembly 7, and a sleeve 8.
  • the decorative cover 1 is provided with a buckle 11 and is fixedly coupled to the front cover 23 of the front cover assembly 2 by the buckle 11.
  • the motor cover assembly 7 includes a motor cavity seal 71, an oil seal 73, a motor cover 74, and a damper sleeve 75.
  • a rotating shaft 741 is disposed on the motor cover 74, and the damping sleeve 75 is sleeved on the rotating shaft 741.
  • the rotating shaft 741 is a hollow shaft, and the oil seal 73 is disposed in the inner hole of the rotating shaft 741.
  • a motor cavity seal 71 is disposed between the motor cover 74 and the rear cover 5 for sealing between the motor cover 74 and the rear cover 5, thereby sealing the motor cavity 52 to form a sealed motor chamber.
  • the first drive unit is a first motor 6, and a first output gear 61 is disposed on the shaft of the first motor 6.
  • the first output gear 61 outputs the power of the first motor 6 to effect the rotation of the first monitoring lens 3.
  • the first monitoring assembly includes a bracket and a sun gear 72.
  • the bracket can take any form of construction.
  • the bracket includes a front cover 23, a rear cover 5, and a motor cover 74, but the present application is not limited thereto.
  • the bracket can also be a single, integrally formed part.
  • the first motor 6 and the first monitoring lens 3 are mounted on a bracket.
  • the first motor 6 and the first monitoring lens 3 are integrally rotated with the bracket. Further, it rotates around the center line of the sun gear 72. That is, the rotation axis of the bracket is the rotation axis of the first monitoring lens 3 and coincides with the center line of the sun gear 72.
  • the sun gear 72 is fixedly coupled to the body of the binocular camera.
  • the bracket is rotatably supported on the body of the binocular camera.
  • the body of the binocular camera can take any form or structure. In the embodiment shown in FIG. 9, the main body of the binocular camera is the casing 10.
  • the motor cover 74 is fixedly coupled to the rear cover 5 and sealingly fitted to each other to form a sealed motor cavity 52.
  • the first motor 6 is mounted on the rear cover 5 and disposed in the motor cavity 52 (or the motor chamber). Further, the main body portion of the sun gear 72 is also located in the motor chamber 52 or the motor chamber to be meshed with the output gear 61 provided on the first motor 6, for transmission. Thereby, the rotation of the entire first monitoring component is driven.
  • first motor 6 can also be fixedly mounted on the motor cover, but the structure of the motor cover assembly will be more complicated, and it is disadvantageous to provide the rotating shaft and the oil seal 73.
  • the front cover 23 is fixedly coupled to the rear cover 5 and sealingly fitted to each other, and the formed lens cavity 51 is a sealed chamber, and the first monitoring lens 3 is mounted on the rear cover 5.
  • the lens cavity 51 and the motor cavity 52 are sealingly spaced apart from one another. That is, the lens cavity 51 and the motor cavity 52 are each sealed and the two are not connected. Thus, when a chamber enters part of the water vapor, the water vapor does not enter the other chamber.
  • the degree of sealing of the lens cavity 51 and the motor cavity 52 is different.
  • the degree of sealing of the lens cavity 51 is higher than the degree of sealing of the motor cavity 52.
  • the water pressure (without or without water vapor) that the lens chamber 51 can withstand is higher than the water pressure that the motor chamber 52 can withstand (no water or no moisture). That is to say, in the double-cavity waterproof structure of the present application, the first monitoring lens and the driving device are respectively placed in two independent cavities, respectively waterproof, and the waterproof levels of the two waterproof cavities are different, the first monitoring lens The waterproof compartment has a higher waterproof rating, which protects the lens more effectively.
  • the main body portion of the lens chamber 51 and the motor chamber 52 are disposed on the rear cover 5, and the rear cover 51 is provided with a partition wall to sealably separate the lens chamber 51 and the motor chamber 52. This facilitates the sealing separation of the lens cavity 51 and the motor cavity 52.
  • the front cover closes the lens cavity, and the motor cover closes the motor cavity.
  • the lens chamber 51 is opened toward the front, and the opening direction of the motor chamber 52 is perpendicular to the opening direction of the lens chamber 51. That is, the motor cavity 52 is open toward the lateral direction.
  • the lens cavity 51 is generally T-shaped with a wider front portion and a narrower rear portion. That is, the lens chamber 51 is contracted inward at the rear portion to allow the space to set the motor cavity 52.
  • the sun gear 72 includes a connecting body 721, and a sector gear body 723 and a connecting shaft 722 that are integrally coupled to the connecting body 721.
  • the teeth of the sector gear body 723 mesh with the output gear 61, and the connecting shaft 722 passes through the motor cover 74 and extends beyond the motor cavity 52.
  • the shape of the sector gear body 723 is advantageous for greatly reducing the size of the sun gear, thereby improving the overall space utilization efficiency, making the entire motor cavity and the first monitoring assembly more compact.
  • the binocular camera further includes an oil seal 73.
  • the outer circumference of the oil seal 73 is interference-fitted with the perforations on the motor cover 74, and the oil seal 73 is pressed into the groove inside the motor cover 74.
  • the connecting shaft 722 has an interference fit with the inner hole of the oil seal 73. It should be noted that the connecting shaft 722 and the oil seal 73 can be relatively rotated. The oil seal 73 achieves a rotational and sealed fit between the sun gear 72 and the motor cover 74.
  • the damping sleeve 75 is made of silicone rubber.
  • the damping sleeve 75 is made of silicone rubber, so that the gap in the gear transmission can be effectively absorbed and compensated during the rotation. Further, when there is vibration in the camera, the damping sleeve 75 can absorb the vibration, so that the first monitoring lens rotates and the shooting is smooth.
  • the motor cover 74 is provided with a rotating shaft 741 (see Fig. 8).
  • the rotating shaft 741 is located outside the motor cavity 52.
  • a damper sleeve 75 is sleeved on the rotating shaft 741 and rotatably supported by the body of the binocular camera through the damper sleeve 75.
  • an auxiliary rotating shaft 742 is provided on the other side of the rear cover 5.
  • the auxiliary rotating shaft 742 is coaxial with the rotating shaft 741, that is, the axes of the two coincide.
  • the entire monitoring lens is rotatably connected to the casing 10 of the entire smart integrated camera through the rotating platen 4 and the sleeve 8.
  • the rotary platen 4 and the sleeve 8 are fixed to the casing 10 by screws.
  • the rotating platen 4 cooperates with the platform of the connecting shaft end of the sun gear 72 to prevent the sun gear 72 from rotating.
  • the sleeve 8 cooperates with the rotating shaft 741 and the auxiliary rotating shaft 742 to realize the rotational connection of the rotating shaft 741 and the auxiliary rotating shaft 742 with respect to the sleeve 8 and the casing 11.
  • the inner side wall of the motor cover 74 cooperates with the end of the sector gear body 723 to limit the range of rotation of the motor cover 74 relative to the sun gear 72, that is, to limit the motor cover 74.
  • the sun gear 72 meshes with the teeth on the first motor 6.
  • the motor 6 rotates, since the sun gear 72 has been fixed on the main body of the camera, the first motor 6 will rotate about the axis of the sun gear 72, thereby driving the entire first monitoring lens assembly around the sun gear 72.
  • the axis rotates.
  • the output gear serves as a planetary gear
  • the bracket serves as a connecting arm for driving the panoramic monitoring lens 3 to rotate around the center line of the sun gear 72 in a planetary differential manner.
  • the distance between the front end of the lens and the window keeps the minimum distance under the premise that the lens assembly does not touch the protective cover and the angle of view of the lens does not exceed the boundary of the transparent protective cover within the required angle of the lens assembly.
  • the shape of the transparent protective cover is not limited to a plane, but also includes a curved surface, a spherical surface, and the like.
  • the upper and lower side walls of the motor cover 74 form a mechanical limit of the sun gear 72 during rotation.
  • the binocular camera includes a main board 12 that can be used as a control module to be signally coupled to the first motor 6 to control the rotation of the first motor 6.
  • the first motor 6 is preferably a stepper motor, thereby having a good control function and a self-locking function. Precise rotation, positioning and locking of the first monitoring component can be achieved.
  • the front cover assembly 2 includes a lamp cup 21, a lens glass 22, a front cover 23, a light board 24, and a lens cavity seal 25.
  • the lamp cup 21 is used to adjust the fill light of the fill light provided on the light board 24, so that the fill light is more uniform.
  • the lamp cup 21 and the lens glass 22 are fixed to the front cover 23 by dispensing to form a seal.
  • the lens cavity seal ring 25 is disposed between the front cover 23 and the rear cover 5 to form a seal.
  • the lens cavity 51 is provided with three waterproof seals: the lamp cup 21 and the lens glass 22 are fixed on the front cover 23 by dispensing to form a seal; a lens cavity seal ring 25 is disposed between the front cover 23 and the rear cover 5 to form Sealed; the position of the rear side of the rear cover 5 is also sealed by dispensing.
  • the motor cavity 52 is provided with three waterproof parts: an oil seal 73 is disposed between the motor cover 74 and the sun gear 72 to form a seal; a motor cavity seal ring 71 is disposed between the motor cover 74 and the rear cover 5, and the motor cavity seal ring 71 is compressed and deformed. A seal is formed; the inlet opening on the back cover 5 is sealed by dispensing. The motor cavity seal 71 is pressed into the groove provided in the motor cover 74, and the two are interference fit.
  • the second monitoring component further includes a second drive unit (ie, the second motor 6b).
  • the second driving unit is drivingly coupled to the second monitoring lens 3b and is used to drive the second monitoring lens 3b to rotate. It can be understood that the second monitoring component can implement the rotation of the second monitoring lens 3b by any suitable driving element and driving structure.
  • the second drive unit is a second motor 6b, and a second output gear is disposed on the shaft of the second motor 6b.
  • the second monitoring assembly includes a transmission gear 614 that is fixedly coupled to the second monitoring lens 3b. That is, the second monitoring lens 3b and the transmission gear 614 are integrated in rotation.
  • the second output gear meshes with the transmission gear 614, and the second output gear and the transmission gear 614 are between the reduction gears.
  • the binocular camera further includes a support frame 62 and a lens holder 613 that is rotatably mounted on the support frame 62 by two mounting support bushings 615.
  • the second monitoring lens 3b is tightly coupled to the support frame 62 by a lens hoop 617 that is fixedly coupled to the support frame 62 and spaced apart from the mounting support bushing 615.
  • the second motor 6b is mounted on the support frame 62.
  • the second monitoring lens rotating device is one of the core devices of the present application, and is also a device for realizing the rotation of the second monitoring lens.
  • the second monitoring lens rotating device includes a second monitoring lens assembly (the core is the second monitoring lens 3b), a support frame 62, a fan 63, and a second motor assembly 64.
  • the second motor assembly 64 includes a second motor 6b and a drive gear disposed on the second motor 6b.
  • the second monitoring lens assembly, the fan 63, and the second motor 6b are all mounted on the support frame 62.
  • the support frame 62 is fixed to the inside of the cabinet 10, for example, by screws.
  • the second monitoring lens assembly includes a second monitoring lens 6b and is rotatably supported on the support frame 62. Specifically, the second monitoring lens assembly is supported on the semi-circular groove 621 of the support frame 62, and the second motor 6b is used to drive the second monitoring lens assembly to rotate relative to the support frame 62. That is, the second motor 6b is a driving unit for driving the rotation of the second monitoring lens unit, that is, a driving unit for driving the rotation of the second monitoring lens 6b.
  • the second monitoring lens assembly is a face monitoring lens assembly including a front end bracket 611, a front end assembly 612, a lens holder 613, a gear 614, a support sleeve 615, a second monitoring lens 3b, and a lens hoop 617.
  • the second motor 6b is rotated with the drive gear on the motor to drive the drive gear 614 to effect rotation or swing of the second monitor lens 3b.
  • the driving unit is not limited to a motor, and a power element such as a solenoid, a linear motor, or a hydraulic cylinder may be used.
  • the drive structure is also not limited to gear transmission, and can also be driven by a chain drive, a belt drive, a link drive or the like.
  • the second motor 6b is a stepping motor, thereby having a good control function and a self-locking function.
  • the precise rotation, positioning and locking of the second monitoring lens 3b can be achieved.
  • the second monitoring component includes a second monitoring lens assembly and a support frame 62
  • the second monitoring lens assembly includes a second monitoring lens 3b and is rotatably supported by the second rotating shaft 6133.
  • the drive unit is a second motor 6b mounted on the support frame 62.
  • the second rotating shaft 6133 extends horizontally, but the present application is not limited thereto, and the second rotating shaft 6133 may also extend vertically or at other predetermined angles.
  • the second rotating shaft 6133 includes two lengths of semi-axes, each of which extends outwardly from the left and right end ends of the support plate 6136 of the lens holder 613.
  • Each of the half shafts is rotatably engaged with a support sleeve 615 which is supported on the semicircular groove 621 of the support frame 62. More specifically, the support bushing 615 is fixed to the support frame 62 by screws.
  • a drive gear is provided on the shaft of the second motor 6b.
  • the second monitoring lens assembly includes a lens holder 613 and a transmission gear 614.
  • the transmission gear 614 and the second monitoring lens 3b are fixedly coupled to the lens holder 613, and the second rotating shaft 6133 is integrally formed on the lens holder 613.
  • the drive gear 614 meshes with the drive gear.
  • the center line of the transmission gear 614 coincides with the center line of the second rotation shaft 6133.
  • the second monitoring lens assembly further includes a lens holder 613, and the second monitoring lens 3b and the transmission gear 614 are fixedly coupled to the lens holder 613.
  • the second rotating shaft 6133 is rotatably supported on the semicircular groove 621 of the support frame 62 by the support boss 615.
  • the lens holder 613 includes a main body plate 6135 and a support plate 6136 which are integrally formed with each other.
  • the support plate 6136 is perpendicular to the main body plate 6135, and the second rotation shaft 6133 is disposed at the left and right ends of the support plate 6136.
  • the lens holder 613 is an injection molded holder so that a plurality of complex structures thereon can be integrally formed.
  • a plurality of longitudinally extending ribs are provided on the lens mount 613, in particular on the back of the main body panel 6135.
  • the back surface of the main body panel 6135 refers to the other surface of the main body panel 6135 opposite to the surface on which the support panel 6136 is disposed.
  • a hoop mount 6317 is provided on the main body plate 6135.
  • the second monitoring lens 3b is tightly fixedly coupled to the lens holder 613 by a lens hoop 617 mounted to the hoop mount 6317, and an arcuate recessed portion 6138 is provided on the support plate 6136, and the second monitoring lens 3b is hooped.
  • the gap between the arcuate recessed portion 6138 and the radially outer peripheral contour of the second monitor lens 3b is between 1 mm and 3 mm, and the support plate 6136 is spaced apart from the hoop mount 6317 in the front-rear direction.
  • the arcuate recessed portion 6138 can be in contact with the second monitoring lens 3b to provide auxiliary support to the second monitoring lens 3b before the second monitoring lens 3b is tightened. It is advantageous for the installation of the second monitoring lens 3b.
  • the second monitoring lens assembly further includes a front end bracket 611 and a front end assembly 612.
  • the front end bracket 611 may be, for example, a sheet metal bracket or an injection molded bracket.
  • the front end bracket 611 is fixedly coupled to the lens holder 613, and the front end assembly 612 is fixedly coupled to the front end bracket 611.
  • the main body plate 6135 is provided with a second mounting hole 6134.
  • the front end bracket 611 is fixedly coupled to the main body panel 6135 of the lens holder 613 by means of a threaded connection that passes through or is screwed into the second mounting hole 6134.
  • the drive gear 614 and the drive gear can be any suitable gear.
  • the transmission gear 614 is a sector gear and the drive gear is a full circumference gear.
  • a reduction drive that is, the diameter of the drive gear is smaller than the diameter of the transmission gear 614.
  • the transmission gear 614 is a sector gear, which is advantageous for improving space utilization efficiency.
  • a transmission gear 614 in the form of a sector gear is fixedly mounted to the lens holder 613.
  • the lens holder 613 is provided with a mounting arm 6131 for mounting the transmission gear 614.
  • the mounting arm 6131 is fixedly coupled to the main body plate 6135, and is advantageously integrally formed with the main body plate 6135.
  • a gear mounting hole 6132 is provided on the mounting arm 6131.
  • the drive gear 614 is fixedly coupled to the body plate 6135 of the lens holder 613 by means of a threaded connection that passes through or is screwed into the gear mounting hole 6132.
  • the transmission gear 614 is detachably fixedly mounted to the lens holder 613. This makes it easy to replace the drive gear or to match different drive gears.
  • the transmission gear 614 can also be disposed on the lens holder 613 in an integrally formed manner.
  • the binocular camera includes a fan 63 that is mounted on a support frame 62.
  • Fan 63 is used, for example, for cooling of the front end assembly.
  • the binocular camera includes a control module 7, which is coupled to the second motor 6b.
  • the parameters such as the rotation angle and the rotation speed of the second motor 6b can be controlled by the control module 7.
  • the second motor 6b is a stepper motor. Thereby, the rotation control can be conveniently performed.
  • the first monitoring component includes a drive unit that drives rotation of the first monitoring lens 3.
  • the first monitoring lens 3 is also rotatable, enabling a larger monitoring range.
  • the first monitoring lens is a panoramic lens for panoramic monitoring; the second monitoring lens is a face capturing lens for capturing a captured face.
  • the second monitoring lens 3b of the binocular camera of the present application not only has a zoom function, but also can be rotated, so that it can be well adapted to the field of view of the first monitoring lens, and intelligently captures a local area in the first monitoring lens. For example, perform a face capture.
  • the second monitoring component includes a second monitoring lens assembly and a support frame 62.
  • the second monitoring lens assembly includes a second monitoring lens 3b and is rotatably disposed on the support frame 62 via a rotating shaft 6133.
  • the second drive unit is a second motor 6b mounted on the support frame 62.
  • a drive gear is disposed on the shaft of the second motor 6b,
  • the second monitoring lens assembly includes a lens holder 613 and a transmission gear 614.
  • the transmission gear 614 and the second monitoring lens 3b are fixedly coupled to the lens holder 613, and the rotating shaft 6133 is integrally formed on the lens holder 613.
  • the drive gear 614 meshes with the drive gear.
  • the second monitoring lens assembly further includes a lens holder 613, and the second monitoring lens 3b and the transmission gear 614 are fixedly coupled to the lens holder 613.
  • the rotating shaft 6133 is rotatably mounted on the semicircular groove 621 of the support frame 62 through the support sleeve 615.
  • the lens holder 613 includes a main body plate 6135 and a support plate 6136 which are integrally formed with each other, the support plate 6136 is perpendicular to the main body plate 6135, and the rotation shaft 6133 is disposed at the left and right ends of the support plate 6136.
  • a hoop mount 6317 is provided on the main body plate 6135, and the second monitor lens 3b is tightly fixedly coupled to the lens mount 613 by a lens hoop 617 mounted to the hoop mount 6317, and is disposed on the support plate 6136.
  • the arcuate recessed portion 6138 has a gap between the curved concave portion 6138 and the radially outer peripheral contour of the second monitoring lens 616 between 1 mm and 3 mm in a state where the second monitoring lens 616 is hooped, and the support plate The 6136 is spaced apart from the hoop mount 6317 in the front-rear direction.
  • the second monitoring lens assembly further includes a front end bracket 611 and a front end assembly 612, the front end bracket 611 is fixedly coupled to the lens bracket 613, and the front end assembly 612 is fixedly coupled to the front end bracket 611.
  • the transmission gear 614 is a sector gear
  • the drive gear is a full circumference gear
  • the binocular camera includes a fan 63 that is mounted on the support frame 62.
  • the second motor 6b is a stepping motor, and a driving gear is disposed at one end of the stepping motor, and the stepping motor drives the second monitoring lens 3b to pitch or rotate about the rotating shaft 6133 via the driving gear and the transmission gear.
  • the entire face lens rotating device (the second monitoring lens rotating device) constitutes a module.
  • the support frame 62 of the face lens rotating device serves as the mounting base of the entire device, and all the parts of the face lens rotating device are mounted on the support frame 62. Thereby, the entire face lens rotating device can be easily assembled, replaced and debugged.
  • the second monitoring lens assembly is also modular.
  • the lens holder 613 of the second monitoring lens assembly serves as a mounting base for the entire assembly, and all parts of the second monitoring lens assembly are mounted on the lens holder 613. Thereby, the entire second monitoring lens assembly can be easily assembled, replaced and debugged.
  • This modular design is more convenient and quicker for assembly and debugging, and can also replace the entire lens module according to the needs of face capture, which is more conducive to production and is more conducive to better utilization of resources.
  • the first monitoring lens of the binocular camera of the present application not only has a large angle of view, but is also configured to be rotatable, thereby having a larger field of view, and can be better matched with the second monitoring lens having a zoom function, thereby obtaining more
  • the large field of view after the second monitoring lens detects the occurrence of a specific event, performs panoramic monitoring on a specific area within a wider range of the periphery; in particular, a smart integrated camera with a large field of view can be realized.
  • the smart integrated camera refers to a camera that can capture and capture local details such as faces in the screen while being panoramicly monitored.
  • the first monitoring lens is used for panoramic monitoring
  • the second monitoring lens is used for face capturing.
  • the lens of the first monitoring component and the rotary drive mechanism are respectively placed in two separate chambers for waterproofing. Because the motor, gear and other mechanisms will rotate during the working process of the machine, the waterproof level of this part can not meet the requirements of lens waterproofing.
  • the lens and the rotating structure are respectively placed in two mutually independent cavities, and the two cavities are respectively waterproofed, which effectively improves the waterproof level of the cavity where the monitoring lens is located, and better protects the lens.
  • the first monitoring lens is mainly used for wide-angle, large-scale global monitoring.
  • the monitoring lens can be rotated in the vertical direction to monitor a larger range.
  • the double-cavity waterproof structure of the present application the monitoring lens and the rotating structure are respectively placed in two independent cavities, respectively, and waterproof, the waterproof levels of the two waterproof cavities are different, and the waterproof cavity of the monitoring lens has a higher waterproof level. Can protect the lens more effectively.
  • the shooting angle of the existing binocular camera lens has been fixed at the beginning and cannot be adjusted.
  • the binocular camera of the present application includes two lenses, both of which can be rotated. For example, by rotating the gear by the motor, the rotation of the lens in the vertical direction and/or the horizontal direction can be realized, so that the monitoring lens can monitor a larger range, which is beneficial to greatly improving the performance of the smart integrated camera.

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Abstract

本申请公开了一种双目摄像机，包括：第一监控组件、第二监控组件和驱动装置。第一监控组件包括第一监控镜头和位于第一监控镜头前方的第一视窗，第二监控组件包括第二监控镜头和位于第二监控镜头前方的第二视窗，且第二监控镜头的视场角小于第一监控镜头的视场角；驱动装置包括第二驱动单元，第二驱动单元与第二监控镜头传动连接，并用于驱动第二监控镜头绕其旋转轴线在设定范围内俯仰转动。本申请的双目摄像机的两个监控镜头中的第二监控镜头可通过驱动装置实现转动，由于第二监控镜头的视场角小于第一监控镜头的视场角，更利于对行人进行监控，从而使得该双目摄像机能够实现对行人的跟踪监控。

Description

一种双目摄像机
本申请要求于2018年3月30日提交中国专利局、申请号为201820445726.X发明名称为“一种摄像机”，于2018年3月30日提交中国专利局、申请号为201820472706.1发明名称为“一种双目摄像机”，于2018年3月30日提交中国专利局、申请号为201810279459.8发明名称为“一种双目摄像机”，于2018年3月30日提交中国专利局、申请号为201820460020.0发明名称为“一种双目摄像机”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及摄像机技术领域，特别是涉及一种双目摄像机。
背景技术
传统的双目摄像机中，两个监控镜头往往设置为不可转动，从而只能对固定的区域进行监控，监控范围小，无法对监控区域进行调节。因此，希望有一种技术方案来克服上述缺陷。
发明内容
本申请提供了一种双目摄像机来克服上述缺陷。
为了实现上述目的，本申请提供了一种双目摄像机，包括：第一监控组件、第二监控组件和驱动装置，
所述第一监控组件包括第一监控镜头和位于所述第一监控镜头前方的第一视窗；
所述第二监控组件包括第二监控镜头和位于所述第二监控镜头前方的第二视窗，且所述第二监控镜头的视场角小于所述第一监控镜头的视场角；
所述驱动装置包括第二驱动单元，所述第二驱动单元与所述第二监控镜头传动连接，并用于驱动所述第二监控镜头绕其旋转轴线在设定范围内俯仰 转动。
由上述的技术方案可见，本申请的双目摄像机的两个监控镜头中第二监控镜头可以通过驱动装置中的第二驱动单元实现转动，从而使得该双目摄像机能够监控更大的范围，且具有更大的适用范围，例如，用于实现一种智慧一体摄像机。
附图说明
为了更清楚地说明本申请实施例和现有技术的技术方案，下面对实施例和现有技术中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例的双目摄像机的整体外形示意图。
图2是图1所示双目摄像机中第一监控组件的分解示意图。
图3是图2所示第一监控组件中装饰盖的示意性立体图。
图4是图2所示第一监控组件中前盖组件的分解示意图。
图5是图2所示第一监控组件中电机盖组件的分解示意图。
图6是图2所示第一监控组件中后盖的示意性立体图。
图7是图2所示第一监控组件中第一电机上的第一输出齿轮与中心齿轮之间啮合关系的示意图。
图8是图1所示双目摄像机中第一监控组件的示意性剖视图。
图9是图1所示双目摄像机的整体结构示意图。
图10是图1所示双目摄像机中第二监控组件的俯仰旋转动作原理示意图。
图11是图1所示双目摄像机中第一监控组件的俯仰旋转动作原理示意图。
图12是图1所示双目摄像机中第一监控组件的示意性立体图。
图13是图1所示双目摄像机中第二监控组件的分解示意图。
图14是图1所示双目摄像机中第二监控组件的镜头组件的分解示意图。
附图标记：
1 装饰盖 61 第一输出齿轮
2 前盖组件 71 电机腔密封圈
3 第一监控镜头 72 中心齿轮
4 转轴压板 73 油封
5 后盖 74 电机盖
6 第一电机 75 阻尼套管
7 电机盖组件 721 连接体
8 轴套 722 连接轴
9 第一视窗 723 扇形齿轮体
10 机壳 741 旋转轴
11 卡扣 742 辅助旋转轴
12 主板 722 连接轴
21 灯杯 723 扇形齿轮体
22 镜头玻璃 741 旋转轴
23 前盖 742 辅助旋转轴
24 灯板 3b 第二监控镜头
25 镜头腔密封圈 6b 第二电机
51 镜头腔 9b 第二视窗
52 电机腔 614 传动齿轮
具体实施方式
为使本申请的目的、技术方案、及优点更加清楚明白，以下参照附图并举实施例，对本申请进一步详细说明。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本 申请保护的范围。
本申请一个实施例的双目摄像机具有两个监控镜头，且两个监控镜头设置为具有不同的视场角，其中一个监控镜头可以设置为变焦镜头，而另一个监控镜头可以设置为定焦镜头；在另一个实施例中，两个监控镜头均可以设置为变焦镜头。本申请的双目摄像机能够容易地用作智慧一体摄像机。例如，根据本申请实施例的双目摄像机能够在全景监控的同时，还能够对画面中人脸等局部细节进行捕捉抓拍。例如，第一监控镜头用于全景监控，第二监控镜头用于人脸抓拍。
如图9、图12和图2所示，本申请一实施例的双目摄像机包括：第一监控组件、第二监控组件和驱动装置。其中，第一监控组件包括第一监控镜头和位于第一监控镜头前方的第一视窗，第二监控组件包括第二监控镜头和位于第二监控镜头前方的第二视窗，驱动装置包括第二驱动单元，第二驱动单元与第二监控镜头传动连接，并用于驱动第二监控镜头绕其旋转轴线在设定范围内俯仰转动。
参见图2，第一监控组件包括前盖23、后盖5和第一监控镜头3。第一监控镜头3为定焦镜头，前盖23和后盖5密封配合而形成密封的镜头腔，第一监控镜头3设置在镜头腔内。从而，整个第一监控组件具有较小的尺寸。在图9所示的实施例中，第一监控组件转动地安装在双目摄像机的机壳10上。
第二监控组件包括第二监控镜头3b。第二监控镜头3b为变焦镜头，且第二监控镜头3b的视场角小于第一监控镜头3的视场角。从而，由于设置有调焦功能，第二监控组件具有较大的尺寸。参见图9，在双目摄像机主体内设置有密封的第三腔室，第二监控组件以及主板12等设置在该第三腔室内。
为了实现监控区域的可调，驱动装置包括第二驱动单元，第二驱动单元驱动第二监控镜头绕其旋转轴线转动。当然，驱动装置还可以包括第一驱动单元，第一驱动单元驱动第一监控镜头绕其旋转轴线转动。可以理解的是，第一驱动单元和第二驱动单元可以采用步进电机、螺线管、液压缸、电磁铁等驱动元件，此外可以采用齿轮传动、蜗轮蜗杆传动、四连杆传动(优选曲柄摆杆机构)、链条传动、带传动(例如同步带)等传动结构。这都在本申请的保护范围之内。
有利的是，第一监控镜头3或整个第一监控组件的旋转轴线垂直于第一监控镜头3的轴线。第一监控镜头3的轴线是指光学轴线。
旋转轴线能够水平延伸，也能够设置为竖直延伸。第一驱动单元驱动第一监控镜头3绕旋转轴线俯仰转动，或左右水平转动；第二驱动单元驱动第二监控镜头3b绕旋转轴线俯仰转动，或左右水平转动。
在一个备选实施例中，第一监控镜头3的俯仰转动范围(是指可转动角度的大小，或可调节角度的大小)设置为35度至45度(例如40度，即±20°)，或者第一监控镜头3的左右转动范围设置为35度至45度(例如40度，即±20°)。
在另一个备选实施例中，第二监控镜头3b的俯仰转动范围(是指可转动角度的大小，或可调节角度的大小)设置为25度至35度(例如30度，即±15°)，或者第二监控镜头3的左右转动范围设置为25度至35度(例如30度，即±15°)。
第一监控镜头3和第二监控镜头3b的视场角能够根据需要设置。例如，第一监控镜头3的视场角设置在100°至120°的范围内(例如110°)，第二监控镜头3b的视场角在50°至70°的范围内(例如60°)。
第一视窗9和第二视窗9b的大小设置为：在第一监控镜头3和/或第二监控镜头3b在设定范围内转动的情况下，避免第一监控镜头3和第二监控镜头3b获取的图像出现由于第一视窗9和第二视窗9b的内轮廓导致的黑边。也就是说，在正常使用情况下，第一视窗9和第二视窗9b不会阻挡用于形成图像的有效光线，第一视窗9和第二视窗9b的内轮廓不会出现在镜头形成的图像上。
第一监控镜头3和第二监控镜头3b的相应图像传感器的分辨率可以根据需要设置。有利的是，与第二监控镜头3b对应的图像传感器的分辨率高于第一监控镜头3所对应图像传感器的分辨率。或者说，在对相同的视野范围(画面区域)成像时，通过第二监控镜头3b获取的图像具有更高的分辨率，能够表示更清晰、更具体的细节。
第一视窗和第二视窗可以设置为任何适当的形状。视窗的形状、大小、 相对位置可以根据镜头的具体成像要求来确定。优选地，第一视窗9为圆形，第二视窗9b为矩形，参见图1。或者，第一视窗与第二视窗均设置为矩形。
有利的是，第一视窗9的面积小于第二视窗9b的面积。例如，第二视窗9b的面积为第一视窗9的面积的3倍或更大。需要指出的是，第一视窗和第二视窗的形状和大小应该设置为在镜头的成像过程中，不会在图像上出现黑边。也就是说，在常规成像情况下，第一视窗和第二视窗的边缘应该不会出现在镜头获取的图像(图像传感器获取的图像)上。
在图示实施例中，第一监控镜头3设置在第二监控镜头3b之下，双目摄像机包括两个补光灯，补光灯在高度上与第一监控镜头3齐平，且在第一监控镜头3左右两侧对称地各设置一个。
有利的是，双目摄像机还包括补光灯驱动单元，补光灯驱动单元驱动补光灯相对于第一监控镜头3和/或第二监控镜头3b转动。
参见图2，整个第一监控镜头旋转结构包括：装饰盖1、前盖组件2、镜头3、转轴压板4、后盖5、第一电机6、电机盖组件7和轴套8。
装饰盖1上设置有卡扣11，并通过卡扣11固定连接至前盖组件2的前盖23。
参见图5，电机盖组件7包括电机腔密封圈71、油封73、电机盖74和阻尼套管75。在电机盖74上设置有旋转轴741，阻尼套管75套设在旋转轴741上。旋转轴741为中空轴，油封73设置在旋转轴741的内孔中。电机腔密封圈71设置在电机盖74和后盖5之间，用于实现电机盖74和后盖5之间的密封，进而密封电机腔52，形成密封的电机腔室。
参见图2和图7，优选地，第一驱动单元为第一电机6，在第一电机6的轴上设置有第一输出齿轮61。第一输出齿轮61输出第一电机6的动力，以实现第一监控镜头3的转动。
第一监控组件包括支架和中心齿轮72。支架可以采用任何结构形式。在图示实施例中，支架包括前盖23、后盖5和电机盖74，但本申请不限于此。实际上，支架也可以是单个一体成型的零件。
第一电机6和第一监控镜头3安装在支架上。换句话说，第一电机6和第一监控镜头3与支架一体地转动。进一步地，绕中心齿轮72的中心线转动。也就是说，支架的旋转轴线即为第一监控镜头3的旋转轴线，且与中心齿轮72的中心线重合。
中心齿轮72固定连接至双目摄像机的主体。而支架旋转地支撑在双目摄像机的主体上。双目摄像机的主体可以采用任何形式或结构。在图9所示的实施例中，双目摄像机的主体为机壳10。
电机盖74与后盖5固定连接且相互密封配合，形成密封的电机腔52，第一电机6安装在后盖5上，且设置在电机腔52(或电机腔室)内。此外，中心齿轮72的主体部分也位于电机腔52或电机腔室内，以与第一电机6上设置的输出齿轮61啮合，而进行传动。由此，驱动整个第一监控组件的转动。
可以理解的是，第一电机6也可以固定安装在电机盖上，但是将使得电机盖组件的结构更加复杂，且不利于设置旋转轴及油封73。
前盖23与后盖5固定连接且相互密封配合，形成的镜头腔51为密封腔室，第一监控镜头3安装在后盖5上。
在图示实施例中，镜头腔51和电机腔52相互密封地间隔开。也就是说，镜头腔51和电机腔52是各自密封的，且两者是不连通的。从而使一个腔内进入部分水汽时，水汽不会进入另一个腔。
有利的是，镜头腔51和电机腔52的密封程度是不同的。例如，镜头腔51的密封程度高于电机腔52的密封程度。换句话说，镜头腔51能够耐受的水压(不进水或不进水汽)高于电机腔52能够耐受的水压(不进水或不进水汽)。也就是说，本申请中的双腔防水结构，将第一监控镜头和驱动装置两者分别置于两个独立的腔体内，分别进行防水，两个防水腔的防水等级不同，第一监控镜头的防水腔防水等级更高，这能够更有效的保护镜头。
镜头腔51和电机腔52的主体部分设置在后盖5上，且后盖51上设置有分隔壁将镜头腔51和电机腔52密封地分隔开。这有利于将镜头腔51和电机腔52密封地分隔开。前盖封闭镜头腔，电机盖封闭电机腔。
更具体地，如图6所示，镜头腔51朝前方开口，而电机腔52的开口方 向垂直于镜头腔51的开口方向。也就是说，电机腔52朝向侧向开口。从俯视图上看，镜头腔51大体为T型，前部较宽，而后部较窄。也就是说，镜头腔51在后部处向内收缩，以让出空间来设置电机腔52。
参见图5和图7，中心齿轮72包括连接体721，以及与连接体721一体连接的扇形齿轮体723和连接轴722。扇形齿轮体723的齿与输出齿轮61啮合，连接轴722穿过电机盖74，延伸至电机腔52之外。扇形齿轮体723的形状有利于大大缩小中心齿轮的尺寸，进而提高整体空间利用效率，使得整个电机腔和第一监控组件更加紧凑。
还是参见图5，双目摄像机还包括油封73。油封73的外周与电机盖74上的穿孔过盈配合，油封73压入电机盖74内侧的槽内。连接轴722与油封73的内孔过盈配合。需要指出的是，连接轴722与油封73之间能够相对转动。油封73实现中心齿轮72与电机盖74之间的转动且密封的配合。
优选地，阻尼套管75为硅橡胶材质。阻尼套管75为硅橡胶材质，从而，在转动过程中，能够有效的吸收和补偿齿轮传动中的间隙。进一步的，在摄像机存在震动时，阻尼套管75能够吸收震动，使第一监控镜头转动和拍摄平稳。
为了更好地转动支撑整个第一监控组件，电机盖74上设置有旋转轴741(参见图8)。旋转轴741位于电机腔52之外。在旋转轴741上套设有阻尼套管75，且通过阻尼套管75旋转地支撑在双目摄像机的主体上。需要指出的是，在后盖5的另一侧设置有辅助旋转轴742。辅助旋转轴742与旋转轴741共轴，即两者的轴线重合。
整个监控镜头通过转轴压板4和轴套8，与整个智慧一体摄像机的机壳10转动连接。转轴压板4和轴套8通过螺钉固定至机壳10。转轴压板4与中心齿轮72的连接轴端部的平台配合，阻止中心齿轮72转动。轴套8与旋转轴741、辅助旋转轴742配合，实现旋转轴741、辅助旋转轴742相对于轴套8和机壳11的转动连接。
为实现第一监控组件的转动限位，有利的是，电机盖74的内侧壁与扇形齿轮体723的端部配合，而限制电机盖74相对于中心齿轮72的转动范围， 即限制电机盖74相对于中心齿轮72的最大转动角度。
当将电机盖组件7通过螺钉固定到后盖5上后，中心齿轮72与第一电机6上的齿啮合。当信号输入，电机6转动，因中心齿轮72已被固定在摄像机的主体上，故第一电机6将绕着中心齿轮72的轴线转动，从而带动整个第一监控镜头组件绕着中心齿轮72的轴线转动。输出齿轮作为行星轮，支架作为连接臂，以行星差动方式驱动全景监控镜头3绕中心齿轮72的中心线转动。
镜头的前端与视窗(透明保护罩)的距离，在要求的镜头组件摆动角度内，镜头组件摆动不触碰保护罩且镜头视场角度不超过透明保护罩边界的前提下，保持最小距离。透明保护罩的形状不限于平面，也包含弧面、球面等。
进一步地，电机盖74的上下两侧壁，形成了转动过程中中心齿轮72的机械限位。
参见图9，双目摄像机包括主板12，主板12能够用作控制模块，与第一电机6信号连接，以控制第一电机6的转动。第一电机6优选为步进电机，从而，具有良好的控制功能与自锁功能。能够实现第一监控组件的精确转动、定位及锁止。
参见图4，前盖组件2包括灯杯21、镜头玻璃22、前盖23、灯板24和镜头腔密封圈25。灯杯21用于对灯板24上设置的补光灯的补光进行调节，使得补光更加均匀。灯杯21和镜头玻璃22通过点胶固定在前盖23上，形成密封。同时，镜头腔密封圈25设置在前盖23与后盖5之间，形成密封。
优选地，镜头腔51设置有三处防水密封：灯杯21和镜头玻璃22通过点胶固定在前盖23上，形成密封；前盖23与后盖5之间设置有镜头腔密封圈25，形成密封；后盖5后侧进线口位置，也通过点胶形成密封。
电机腔52设置有三处防水：电机盖74与中心齿轮72之间设有油封73，形成密封；电机盖74与后盖5之间设置有电机腔密封圈71，电机腔密封圈71压缩形变，形成密封；后盖5上的进线口通过点胶形成密封。电机腔密封圈71压入电机盖74上带有的槽内，两者过盈配合。
在一个备选实施例中，第二监控组件还包括第二驱动单元(即第二电机6b)。第二驱动单元与第二监控镜头3b传动连接，并用于驱动第二监控镜头 3b转动。可以理解的是，第二监控组件可以采用任何适当的驱动元件与驱动结构来实现第二监控镜头3b的转动。
参见图13和图14，第二驱动单元为第二电机6b，在第二电机6b的轴上设置有第二输出齿轮。第二监控组件包括与第二监控镜头3b固定连接的传动齿轮614。也就是说，第二监控镜头3b和传动齿轮614在转动上是一体的。第二输出齿轮与传动齿轮614啮合，且第二输出齿轮与传动齿轮614之间为减速传动。
双目摄像机还包括支撑架62和镜头支架613，镜头支架613通过两个安装支撑轴套615转动地架在支撑架62上。第二监控镜头3b由镜头抱箍617箍紧固定连接至支撑架62，传动齿轮614固定地连接至支撑架62，且与安装支撑轴套615间隔开。第二电机6b安装在支撑架62上。
第二监控镜头旋转装置是本申请的核心装置之一，也是实现第二监控镜头旋转的装置。参见图13，第二监控镜头旋转装置包括第二监控镜头组件(核心为第二监控镜头3b)、支撑架62、风扇63和第二电机组件64。第二电机组件64包括第二电机6b和设置在第二电机6b上的驱动齿轮。
第二监控镜头组件、风扇63和第二电机6b都安装在支撑架62上。支撑架62例如通过螺钉固定到机壳10内部。
第二监控镜头组件包括第二监控镜头6b，且以转动方式支撑在支撑架62上。具体地，第二监控镜头组件支撑在支撑架62的半圆形槽621上，第二电机6b用于驱动第二监控镜头组件相对于支撑架62转动。也就是说，第二电机6b是用于驱动第二监控镜头组件转动的驱动单元，也就是说用于驱动第二监控镜头6b转动的驱动单元。
更具体地，第二监控镜头组件为人脸监控镜头组件，包括前端支架611、前端组件612、镜头支架613、齿轮614、支撑轴套615、第二监控镜头3b和镜头抱箍617。
在图示实施例中，利用第二电机6b带同电机上的驱动齿轮转动，进而驱动传动齿轮614，来实现第二监控镜头3b的转动或摆动。但是本申请不限于此，例如，驱动单元不限于采用电机，还可以采用螺线管、直线电机、液压 缸等动力元件。驱动结构也不限于采用齿轮传动，还可以采用链传动、带传动、连杆传动等驱动方式。
优选地，第二电机6b为步进电机，从而，具有良好的控制功能与自锁功能。能够实现第二监控镜头3b的精确转动、定位及锁止。
也就是说，在图示实施例中，第二监控组件包括第二监控镜头组件和支撑架62，第二监控镜头组件包括第二监控镜头3b，且通过第二旋转轴6133转动地支撑在支撑架62上，驱动单元为安装在支撑架62上的第二电机6b。
如前所述，第二旋转轴6133水平延伸，但是本申请不限于此，第二旋转轴6133还可以竖直延伸，或者以其他预设角度延伸。在图是实施例中，第二旋转轴6133包括两段半轴，每一段半轴从镜头支架613的支撑板6136的左右两侧端部处向外延伸。每一段半轴与一个支撑轴套615转动配合，支撑轴套615支撑在支撑架62的半圆形槽621上。更具体地，支撑轴套615通过螺钉固定至支撑架62。
在第二电机6b的轴上设置有驱动齿轮。第二监控镜头组件包括镜头支架613和传动齿轮614，传动齿轮614和第二监控镜头3b固定连接在镜头支架613上，第二旋转轴6133一体成型地设置在镜头支架613上。传动齿轮614与驱动齿轮啮合。
传动齿轮614的中心线与第二旋转轴6133的中心线重合。从而在传动齿轮614被驱动时，传动齿轮614及整个第二监控镜头组件绕着第二旋转轴6133的中心线转动。
如图14所示，第二监控镜头组件还包括镜头支架613，第二监控镜头3b和传动齿轮614固定连接在镜头支架613上。第二旋转轴6133通过支撑轴套615转动地架在支撑架62的半圆形槽621上。
参见图14，镜头支架613包括相互一体成型的主体板6135和支撑板6136。支撑板6136垂直于主体板6135，且第二旋转轴6133设置在支撑板6136的左右两端处。有利的是，镜头支架613为注塑支架，从而能够一体成型地形成其上的多种复杂结构。有利的是，在镜头支架613上，尤其是在主体板6135的背面设置多条纵向延伸的加强筋(未图示)。主体板6135的背面是指主体 板6135上的设置支撑板6136的面相对的另一面。在主体板6135上设置有抱箍安装座6317。第二监控镜头3b由安装至抱箍安装座6317的镜头抱箍617箍紧固定连接至镜头支架613，在支撑板6136上设置有弧形凹入部6138，在第二监控镜头3b被箍紧的状态下，弧形凹入部6138与第二监控镜头3b的径向外周轮廓之间的间隙在1mm至3mm之间，且支撑板6136与抱箍安装座6317在前后方向上间隔开。这样，在将第二监控镜头3b箍紧之前，弧形凹入部6138能够与第二监控镜头3b接触，对第二监控镜头3b提供辅助支撑。有利于第二监控镜头3b的安装。
如图14所示，第二监控镜头组件还包括前端支架611和前端组件612。前端支架611例如可以是钣金支架，还可以是注塑支架。前端支架611固定连接至镜头支架613，前端组件612固定连接至前端支架611。具体地，主体板6135上设置有第二安装孔6134。借助于穿过或旋入第二安装孔6134的螺纹连接件，前端支架611固定连接至镜头支架613的主体板6135。
传动齿轮614和驱动齿轮可以采用任何适当的齿轮。优选地，传动齿轮614为扇形齿轮，驱动齿轮为整周齿轮。进一步地，驱动齿轮与传动齿轮614之间为减速传动，也就是说，驱动齿轮的直径小于传动齿轮614的直径。
传动齿轮614为扇形齿轮，有利于提高空间利用效率。扇形齿轮形式的传动齿轮614固定安装至镜头支架613。具体地，镜头支架613上设置有安装臂6131，用于安装传动齿轮614。安装臂6131与主体板6135固定连接，有利的是，与主体板6135一体成型。安装臂6131上设置有齿轮安装孔6132。借助于穿过或旋入齿轮安装孔6132的螺纹连接件，传动齿轮614固定连接至镜头支架613的主体板6135。
在上述实施例中，传动齿轮614以可拆卸方式固定安装至镜头支架613。从而便于更换传动齿轮，或者匹配不同的传动齿轮。传动齿轮614也能够以一体成型的方式设置在镜头支架613上。
参见图13，双目摄像机包括风扇63，风扇63安装在支撑架62上。风扇63例如用于前端组件的冷却。
参见图2，双目摄像机包括控制模块7，控制模块7与第二电机6b信号 连接。可以通过控制模块7对第二电机6b的转动角度、转动速度等参数进行控制。有利的是，第二电机6b为步进电机。从而，能够方便地进行转动控制。
在一个未图示的实施例中，第一监控组件包括驱动第一监控镜头3转动的驱动单元。从而，第一监控镜头3也是可转动的，从而能够实现更大的监控范围。
优选地，第一监控镜头为全景镜头，用于进行全景监控；第二监控镜头为人脸抓拍镜头，用于捕捉抓拍人脸。
本申请的双目摄像机的第二监控镜头3b不仅具有变焦功能，同时还能够转动，从而，能够很好地适应于第一监控镜头的视野，对第一监控镜头中的局部区域进行智能拍摄，例如，进行人脸抓拍。
在一个备选实施例中，第二监控组件包括第二监控镜头组件和支撑架62，第二监控镜头组件包括第二监控镜头3b，且通过旋转轴6133转动地设置在支撑架62上，第二驱动单元为安装在支撑架62上的第二电机6b。
更具体地，在第二电机6b的轴上设置有驱动齿轮，
第二监控镜头组件包括镜头支架613和传动齿轮614，传动齿轮614和第二监控镜头3b固定连接在镜头支架613上，旋转轴6133一体成型地设置在镜头支架613上，
传动齿轮614与驱动齿轮啮合。
更具体地，第二监控镜头组件还包括镜头支架613，第二监控镜头3b和传动齿轮614固定连接在镜头支架613上，
旋转轴6133通过支撑轴套615转动地架在支撑架62的半圆形槽621上。
更具体地，镜头支架613包括相互一体成型的主体板6135和支撑板6136，支撑板6136垂直于主体板6135，且旋转轴6133设置在支撑板6136的左右两端处。
更具体地，在主体板6135上设置有抱箍安装座6317，第二监控镜头3b由安装至抱箍安装座6317的镜头抱箍617箍紧固定连接至镜头支架613，在支撑板6136上设置有弧形凹入部6138，在第二监控镜头616被箍紧的状态下， 弧形凹入部6138与第二监控镜头616的径向外周轮廓之间的间隙在1mm至3mm之间，且支撑板6136与抱箍安装座6317在前后方向上间隔开。
更具体地，第二监控镜头组件还包括前端支架611和前端组件612，前端支架611固定连接至镜头支架613，前端组件612固定连接至前端支架611。
更具体地，传动齿轮614为扇形齿轮，驱动齿轮为整周齿轮。
更具体地，双目摄像机包括风扇63，风扇63安装在支撑架62上。
更具体地，第二电机6b是步进电机，步进电机的一端处设置驱动齿轮，步进电机经由驱动齿轮和传动齿轮而驱动第二监控镜头3b绕旋转轴6133俯仰转动或左右转动。
整个人脸镜头旋转装置(第二监控镜头旋转装置)组成一个模块。或者说，人脸镜头旋转装置的支撑架62作为整个装置的安装基础，人脸镜头旋转装置的所有零件都安装在支撑架62上。从而，可以容易地装配、更换和调试整个人脸镜头旋转装置。
进一步而言，第二监控镜头组件也是模块化的。第二监控镜头组件的镜头支架613作为整个组件的安装基础，第二监控镜头组件的所有零件都安装在镜头支架613上。从而，可以容易地装配、更换和调试整个第二监控镜头组件。
此种模块化的设计对于装配和调试等而言，更方便快捷，同时也可以根据人脸抓拍的需求，更换整个镜头模块，更利于生产，有利于资源的更好利用。
本申请的双目摄像机的第一监控镜头不仅具有较大的视场角，而且设置为能够转动，从而具有较大的视野，能够更好地与具有变焦功能的第二监控镜头匹配，获得更大的视野，在第二监控镜头监测到特定事件发生后，对周边更宽的范围内的特定区域进行全景监控；尤其是能够实现一种具有大视野的智慧一体摄像机。在本申请中，智慧一体摄像机是指可以在全景监控的同时，还能够对画面中人脸等局部细节进行捕捉抓拍的摄像机。例如，第一监控镜头用于全景监控，第二监控镜头用于人脸抓拍。
第一监控组件的镜头与旋转驱动机构分别置于两个独立的腔体内，分别进行防水。由于电机、齿轮等机构，在筒机工作过程中会转动，导致该部分的防水等级无法达到镜头防水的要求。本申请中，将镜头和旋转结构分别置于两个相互独立的腔体内，分别对两个腔体进行防水，有效的提高了监控镜头所在腔体的防水等级，更好的保护了镜头。
第一监控镜头主要用于广角度、大范围的全局监控。通过本申请中的旋转结构，监控镜头可以在垂直方向实现转动，进而监控更大的范围。本申请中的双腔防水结构，将监控镜头和旋转结构两者分别置于两个独立的腔体内，分别进行防水，两个防水腔的防水等级不同，监控镜头的防水腔防水等级更高，能够更有效的保护镜头。
现有的双目摄像机镜头的拍摄角度在最初时已被固定，无法进行调节。本申请的双目摄像机包含两个镜头，两个镜头均可实现旋转。例如，通过电机带动齿轮的方式，能够实现镜头在垂直方向和/或水平方向上的转动，从而使得该监控镜头能够监控更大的范围，有利于大大提高智慧一体摄像机的性能。
以上所述仅为本申请的较佳实施例而已，并不用以限制本申请，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请保护的范围之内。

Claims (23)

  1. 一种双目摄像机，其特征在于，包括：第一监控组件、第二监控组件和驱动装置，
    所述第一监控组件包括第一监控镜头和位于所述第一监控镜头前方的第一视窗；
    所述第二监控组件包括第二监控镜头和位于所述第二监控镜头前方的第二视窗，且所述第二监控镜头的视场角小于所述第一监控镜头的视场角；
    所述驱动装置包括第二驱动单元，所述第二驱动单元与所述第二监控镜头传动连接，并用于驱动所述第二监控镜头绕其旋转轴线在设定范围内俯仰转动。
  2. 根据权利要求1所述的双目摄像机，所述第二监控镜头的转动范围大小设置为25度至35度。
  3. 根据权利要求1所述的双目摄像机，其特征在于，所述第一监控镜头为定焦镜头，所述第二监控镜头为变焦镜头；或者，
    所述第一监控镜头和所述第二监控镜头均为变焦镜头。
  4. 根据权利要求1所述的双目摄像机，其特征在于，所述第一视窗和所述第二视窗的大小设置为：在所述第一监控镜头和/或所述第二监控镜头在设定范围内转动的情况下，避免所述第一监控镜头和所述第二监控镜头获取的图像出现由于所述第一视窗和所述第二视窗的大小导致的黑边。
  5. 根据权利要求4所述的双目摄像机，其特征在于，所述第一视窗的面积小于所述第二视窗的面积。
  6. 根据权利要求1所述的双目摄像机，其特征在于，所述第一视窗为圆形或矩形，所述第二视窗为矩形。
  7. 根据权利要求1所述的双目摄像机，其特征在于，所述第二驱动单元为第二电机，在所述第二电机的轴上设置有第二输出齿轮；
    所述第二监控组件还包括与所述第二监控镜头固定连接的传动齿轮；
    所述第二输出齿轮与所述传动齿轮啮合，且所述第二输出齿轮与所述传动齿轮之间为减速传动；
    所述双目摄像机还包括支撑架和镜头支架，所述镜头支架通过两个安装轴套转动地架在所述支撑架上；
    所述第二监控镜头由镜头抱箍箍紧固定连接至所述支撑架，所述传动齿轮固定地连接至所述支撑架，且与所述安装轴套间隔开；
    所述第二电机安装在所述支撑架上。
  8. 根据权利要求7所述的双目摄像机，其特征在于，在所述双目摄像机主体内设置有密封的第三腔室，所述第二监控组件设置在所述第三腔室内，所述双目摄像机的主板也设置在所述第三腔室内。
  9. 根据权利要求1所述的双目摄像机，其特征在于，所述驱动装置还包括第一驱动单元，所述第一驱动单元与所述第一监控镜头传动连接，并用于驱动所述第一监控镜头绕其旋转轴线在设定范围内俯仰转动。
  10. 根据权利要求9所述的双目摄像机，其特征在于，所述第一监控镜头的转动范围大小设置为35度至45度。
  11. 根据权利要求9所述的双目摄像机，其特征在于，
    所述第一驱动单元为第一电机，在所述第一电机的轴上设置有第一输出齿轮；
    所述第一监控组件包括支架和中心齿轮，所述第一电机和所述第一监控镜头安装在所述支架上，所述中心齿轮固定连接至所述双目摄像机的主体，所述支架设置为旋转地支撑在所述双目摄像机的主体上，所述支架的旋转轴线及所述第一监控镜头的所述旋转轴线与所述中心齿轮的中心线重合。
  12. 根据权利要求11所述的双目摄像机，其特征在于，
    所述支架包括前盖、后盖和电机盖；
    所述电机盖与所述后盖固定连接且相互密封配合，形成密封的电机腔，所述第一电机安装在所述后盖上且设置在所述电机腔内；
    所述前盖与所述后盖密封配合而形成密封的镜头腔，所述第一监控镜头安装在所述后盖上且设置在所述镜头腔内。
  13. 根据权利要求12所述的双目摄像机，其特征在于，所述镜头腔和所述电机腔相互密封间隔开。
  14. 根据权利要求13所述的双目摄像机，其特征在于，所述镜头腔的密封程度高于所述电机腔的密封程度。
  15. 根据权利要求12所述的双目摄像机，其特征在于，所述中心齿轮包括一体连接的扇形齿轮体和连接轴，所述扇形齿轮体的齿与所述第一输出齿轮啮合，所述连接轴穿过所述电机盖而延伸至所述电机腔之外，固定连接至所述双目摄像机的主体。
  16. 根据权利要求15所述的双目摄像机，其特征在于，所述电机盖的侧壁与所述中心齿轮的所述扇形齿轮体的端部配合，而限制所述电机盖相对于所述中心齿轮的转动范围。
  17. 根据权利要求15所述的双目摄像机，其特征在于，所述电机腔设置有三处防水密封：所述电机盖与所述中心齿轮之间设有油封，形成密封；所述电机盖与所述后盖之间设置有电机腔密封圈，形成密封；所述后盖上的第一进线口通过点胶形成密封，其中，所述第一进线口用于穿设与所述第一电机连接的导线。
  18. 根据权利要求17所述的双目摄像机，其特征在于，所述油封的外周与所述电机盖上的穿孔过盈配合，且所述连接轴与所述油封的内孔过盈配合。
  19. 根据权利要求12所述的双目摄像机，其特征在于，所述镜头腔设置有三处防水密封：灯杯和镜头玻璃通过点胶固定在所述前盖上，形成密封；所述前盖与所述后盖之间设置有镜头腔密封圈，形成密封；所述后盖上的第二进线口位置，通过点胶形成密封，其中，所述第二进线口用于穿设与所述第一监控镜头的图像传感器连接的导线。
  20. 根据权利要求15所述的双目摄像机，其特征在于，所述电机盖上设置有旋转轴，所述旋转轴位于所述电机腔之外，所述旋转轴旋转地支撑在所述双目摄像机的主体上，在所述旋转轴与所述双目摄像机的主体之间设置有 阻尼套管。
  21. 根据权利要求20所述的双目摄像机，其特征在于，所述阻尼套管为硅橡胶材质。
  22. 根据权利要求20所述的双目摄像机，其特征在于，所述双目摄像机还包括油封，所述油封的外周与电机盖上的穿孔过盈配合，所述连接轴与所述油封的内控过盈配合。
  23. 根据权利要求1所述双目摄像机，其特征在于，所述第一监控镜头的视场角在100°至120°的范围内，所述第二监控镜头的视场角在50°至70°的范围内。
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