WO2019184450A1 - 一种双目摄像机 - Google Patents

一种双目摄像机 Download PDF

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Publication number
WO2019184450A1
WO2019184450A1 PCT/CN2018/120517 CN2018120517W WO2019184450A1 WO 2019184450 A1 WO2019184450 A1 WO 2019184450A1 CN 2018120517 W CN2018120517 W CN 2018120517W WO 2019184450 A1 WO2019184450 A1 WO 2019184450A1
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WIPO (PCT)
Prior art keywords
lens
monitoring
binocular camera
monitoring lens
gear
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Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/120517
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English (en)
French (fr)
Inventor
宋戈
叶展
颜财盛
关宏杰
李杨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Hikvision Digital Technology Co Ltd
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Hangzhou Hikvision Digital Technology Co Ltd
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Filing date
Publication date
Application filed by Hangzhou Hikvision Digital Technology Co Ltd filed Critical Hangzhou Hikvision Digital Technology Co Ltd
Publication of WO2019184450A1 publication Critical patent/WO2019184450A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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 video surveillance technologies, and in particular, to a binocular camera, and more particularly to a smart camera.
  • the two monitoring lenses of the binocular camera are installed in one housing, and the two monitoring lenses are set to be non-rotatable, so that only a fixed area can be monitored, the monitoring range is small, and the monitoring area cannot be adjusted. .
  • the technical problem solved by the present application is to provide a binocular camera capable of adjusting the direction of the lens to realize a smart integrated camera.
  • an embodiment of the present application provides a binocular camera, and the binocular camera includes:
  • the first monitoring component includes a first monitoring lens, and the first monitoring lens is a fixed focus lens;
  • the second monitoring component includes a second monitoring lens and a driving unit, the second monitoring lens is a zoom lens, and an angle of view of the second monitoring lens is smaller than a field of view of the first monitoring lens
  • the driving unit is drivingly connected to the second monitoring lens and used to drive the second monitoring lens to rotate.
  • an angle of view of the first monitoring lens is in a range of 100° to 120°
  • an angle of view of the second monitoring lens is in a range of 50° to 70°.
  • the second monitoring component further includes a horizontally extending or vertically extending rotating shaft, and the driving unit drives the second monitoring lens to rotate about the rotating axis or to rotate left and right.
  • the pitch rotation angle of the second monitoring lens is set in a range of 25° to 35°, and/or the left and right rotation angles of the second monitoring lens are set in a range of 25° to 35°.
  • the binocular camera further includes a first window located in front of the first monitoring lens, and a second window located in front of the second monitoring lens, wherein an area of the first window is smaller than the first The area of the second window.
  • first window is circular or rectangular
  • second window is rectangular
  • a first monitoring lens is disposed under the second monitoring lens, the binocular camera includes two fill lights, the fill light is flush with the first monitoring lens in height, and The first monitoring lens is symmetrically disposed on each of the left and right sides.
  • the binocular camera further includes a fill light driving unit, and the fill light driving unit drives the visible light fill lamp to rotate relative to the first monitoring lens and/or the second monitoring lens.
  • the fill light is a visible light fill light.
  • the second monitoring component includes a second monitoring lens assembly and a support frame
  • the second monitoring lens assembly includes the second monitoring lens
  • the drive unit is a motor mounted on a support frame.
  • a drive gear is disposed on the shaft of the motor
  • the second monitoring lens assembly further includes a lens holder and a transmission gear, the transmission gear and the second monitoring lens are fixedly coupled to the lens holder, and the rotating shaft is integrally formed on the lens holder.
  • the transmission gear meshes with the drive gear.
  • the rotating shaft is rotatably mounted on the semicircular groove of the support frame through a sleeve.
  • the lens holder includes a main body plate and a support plate integrally formed with each other, the support plate is perpendicular to the main body plate, and the rotating shaft is disposed at left and right ends of the support plate.
  • a hoop mount is disposed on the main body plate, and the second monitoring lens is tightly fixed to the lens mount by a lens hoop mounted to the hoop mount, and the support plate is An arcuate concave portion is disposed thereon, and a gap between the arcuate concave portion and a radially outer peripheral contour of the second monitoring lens is between 1 mm and 3 mm in a state where the second monitoring lens is hooped And the support plate and the hoop mount are spaced apart in the front-rear direction.
  • the second monitoring lens assembly further includes a front end bracket fixedly coupled to the lens bracket, and a front end assembly fixedly coupled to the front end bracket.
  • the transmission gear is a sector gear
  • the drive gear is a full gear
  • the binocular camera further includes a fan, and the fan is mounted on the support frame.
  • the motor is a stepping motor
  • the driving gear is disposed at one end of the stepping motor
  • the stepping motor drives the second monitoring lens to rotate through the driving gear and the transmission gear
  • the axis tilts or rotates left and right.
  • the first monitoring component further includes a driving unit that drives the rotation of the first monitoring lens.
  • the first monitoring lens is a panoramic lens for performing panoramic monitoring; and the second monitoring lens is a face capturing lens for capturing a captured face.
  • the second monitoring lens of the binocular camera of the present application not only has a zoom function, but also can be rotated, thereby being able to adapt well to the field of view of the first monitoring lens, and intelligently photographing a part of the first monitoring lens.
  • 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.
  • FIG. 1 is a schematic perspective view of a binocular camera in accordance with an embodiment of the present application.
  • FIG. 2 is a top plan view of the binocular camera shown in FIG. 1 after the sunshade is removed.
  • FIG 3 is an exploded perspective view of the second monitoring lens rotating device.
  • FIG. 4 is a schematic perspective view of a motor.
  • Figure 5 is an exploded perspective view of the second monitoring lens assembly.
  • 6a, 6b and 6c are schematic diagrams of the pitch rotation operation of the second monitoring lens.
  • 6a shows that the second monitoring lens is in the up state
  • FIG. 6b shows that the second monitoring lens is in the intermediate state
  • FIG. 6a shows that the second monitoring lens is in the down state.
  • First surveillance lens 614 Transmission gear 4 Waterproof cap 615 Bushing 5 body 616 Second surveillance lens 6 Second monitoring lens rotating device 617 Lens hoop 7
  • Control module 6131 Mounting arm 8 Back cover 6132
  • Gear mounting hole 61 Second monitoring lens assembly 6133
  • Rotary axis 62 Support frame 6134
  • Second mounting hole 63 fan 6135
  • Main board 64 Motor 6136
  • Support plate 611 Front bracket 6317 Hoop mount 621
  • FIG. 1 is a schematic diagram of a binocular camera according to an embodiment of the present application.
  • the illustrated binocular camera is a barrel and includes two lenses for monitoring the area in front of the lens.
  • the binocular camera of the present application can also be set to other forms as needed.
  • the binocular camera shown in Figure 1 can be set as a smart camera.
  • the first monitoring lens is a panoramic monitoring lens having a larger angle of view
  • the second monitoring lens is a face capturing lens having a smaller angle of view. That is to say, the second monitoring lens is mainly used for capturing and capturing a face in a panoramic picture.
  • the binocular camera shown in Fig. 1 is provided with a driving unit (for example, a motor) for driving the second monitoring lens to rotate in the vertical direction (pitch swing) or in the horizontal direction (swinging left and right), thereby being able to capture the picture.
  • a driving unit for example, a motor
  • the second monitoring lens rotates in the vertical direction (pitch swing) or in the horizontal direction (swinging left and right), thereby being able to capture the picture.
  • a driving unit for example, a motor
  • the sunshade 1, the front cover 2, the first monitoring lens 3, the waterproof cap 4, and the body 5 of the binocular camera are shown in FIG.
  • the body 5, the second monitoring lens rotating device 6, the control module 7, and the rear cover 8 are shown in FIG.
  • the waterproof cap 4 is disposed below the rear cover 8 for waterproofing of the wire.
  • the body 5 includes a first monitoring lens 3, a second monitoring lens rotating device 6, and a control module 7.
  • the first monitoring lens 3 is a main component of the first monitoring lens assembly.
  • the first monitoring lens 3 is a fixed focus lens and the first monitoring lens 3 has a larger field of view with respect to the second monitoring lens 616.
  • the angle of view of the first monitoring lens 3 is in the range of 100° to 120°, as set to 110°.
  • the second monitoring lens 616 is a zoom lens and has a small angle of view.
  • the angle of view of the second monitor lens 616 is in the range of 50° to 70°, such as 60°.
  • the binocular camera of the illustrated embodiment of the present application includes:
  • the first monitoring component includes a first monitoring lens 3, and the first monitoring lens 3 is a fixed focus lens;
  • the second monitoring component includes a second monitoring lens 616 and a driving unit, the second monitoring lens 616 is a zoom lens, and the second monitoring lens 616 has an angle of view smaller than the first monitoring lens
  • the driving unit is drivingly connected to the second monitoring lens 616 and driving the second monitoring lens 616 to rotate.
  • the second monitoring assembly may also include a rotating shaft 6133 having a horizontal extension or a rotating shaft (not shown) extending vertically.
  • the driving unit drives the second monitoring lens 616 to rotate about the rotating shaft 6133 or to rotate left and right.
  • the vertically extending rotating shaft only needs to rotate the entire second monitoring lens rotating device 6 shown in FIG. 3 by 90 degrees around the central axis of the lens.
  • the pitch rotation angle of the second monitoring lens 616 is set to 30° ( ⁇ 15°), and/or the second monitoring lens 616
  • the angle of rotation of the left and right can adjust the angle of the left and right, set to 30 ° ( ⁇ 15 °).
  • range of rotation is exemplary, and other ranges of rotation may be set, for example, in the range of 25° ( ⁇ 12.5°) to 35° ( ⁇ 17.5°).
  • a corresponding limit structure can be provided. The specific form, position, etc. of the limit structure can be set as needed.
  • the binocular camera includes a first window located in front of the first monitoring lens 3, and a second window located in front of the second monitoring lens 616, wherein an area of the first window Less than the area of the second window.
  • the area of the second window is three times or more the area of the first window.
  • 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 shape, size, and relative position of the window can be determined according to the specific imaging requirements of the lens.
  • the first window is circular and the second window is rectangular.
  • the first window can also be set to a rectangle, and the second window can also be set to a circle.
  • a first monitoring lens 3 is disposed under the second monitoring lens 616, the binocular camera includes two fill lights, and the fill light is in height with the first monitoring lens. 3 is flush, and one is symmetrically disposed on the left and right sides of the first monitoring lens 3.
  • the fill light is a visible light fill light.
  • the binocular camera further includes a fill light driving unit, the fill light driving unit driving the visible light fill lamp relative to the first monitoring lens 3 and/or the The second monitoring lens 616 rotates.
  • the fill light driving unit may adopt a driving component such as a stepping motor, a solenoid, a hydraulic cylinder, an electromagnet, etc., and may adopt a gear transmission, a worm gear transmission, a four-link transmission (preferably a crank swing mechanism), a chain transmission, Drive structure such as belt drive (eg timing belt).
  • the fill light is mounted on the light panel and the light panel rotates with the monitoring lens 3 and/or the second monitoring lens 616. Therefore, it is not necessary to separately provide a fill light driving unit.
  • the second monitoring lens rotating device 6 is the core device of the present application, and is also a device for realizing the rotation of the second monitoring lens.
  • the second monitoring lens rotating device 6 includes a second monitoring lens assembly (for example, a face lens assembly) 61, a support frame 62, a fan 63, and a motor 64.
  • the second monitoring lens assembly 61, the fan 63, and the motor 64 are all mounted on the support frame 62.
  • the support frame 62 is fixed to the inside of the body 5, for example, by screws.
  • the second monitoring lens assembly 61 includes a second monitoring lens 616 and is rotatably supported on the support frame 62. Specifically, the second monitoring lens assembly 61 is supported on a semi-circular groove 621 of the support frame 62 for driving the second monitoring lens assembly 61 to rotate relative to the support frame 62. That is, the motor 64 is a driving unit for driving the rotation of the second monitoring lens unit 61, that is, a driving unit for driving the rotation of the second monitoring lens 616.
  • the second monitoring lens assembly 61 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 sleeve 615, a second monitoring lens 616, and a lens hoop 617.
  • the rotation of the second monitor lens 616 is achieved by the motor 64 being rotated with the drive gear 641 (see FIG. 4) on the motor to drive the drive gear 614 (see FIGS. 3 and 5).
  • 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 motor 64 is a stepping motor, thereby having a good control function and a self-locking function. Precise rotation, positioning and locking of the second monitoring lens 616 can be achieved.
  • the second monitoring component includes a second monitoring lens assembly 61 and a support frame 62
  • the second monitoring lens assembly 61 includes the second monitoring lens 616, and is rotated by the rotating shaft 6133
  • the support unit 62 is disposed or supported on the support frame 62
  • the drive unit is a motor 64 mounted on the support frame 62.
  • the rotating shaft 6133 extends horizontally, but the present application is not limited thereto, and the rotating shaft 6133 may also extend vertically or at other predetermined angles.
  • the rotating shaft 6133 includes two lengths of half shafts, each of which extends outward from the left and right end ends of the support plate 6136 of the lens holder 613.
  • Each of the half shafts is rotationally engaged with a sleeve 615 that is supported on a semi-circular groove 621 of the support frame 62. More specifically, the sleeve 615 is fixed to the support frame 62 by screws.
  • a drive gear 641 is provided on the shaft of the motor 64.
  • the second monitoring lens assembly 61 includes a lens holder 613 and a transmission gear 614, the transmission gear 614 and the second monitoring lens 616 are fixedly coupled to the lens holder 613, and the rotating shaft 6133 is integrally formed at the On the lens holder 613.
  • the transmission gear 614 is meshed with the drive gear 641.
  • the center line of the transmission gear 614 coincides with the center line of the rotating shaft 6133.
  • the second monitoring lens assembly 61 further includes a lens holder 613, and the second monitoring lens 616 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 by a 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 rotating 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 616 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 disposed on the support plate 6136.
  • a gap between the curved concave portion 6138 and a radially outer peripheral contour of the second monitoring lens 616 is between 1 mm and 3 mm, and the support plate 6136 and the The hoop mounts 6317 are spaced apart in the front-rear direction.
  • the arcuate recess 6138 can be in contact with the second monitor lens 616 to provide auxiliary support to the second monitor lens 616 prior to tightening the second monitor lens 616. It facilitates the installation of the second monitoring lens 616.
  • the second monitoring lens assembly 61 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.
  • Transmission gear 614 and drive gear 641 can employ any suitable gear. Further, the transmission gear 614 is a sector gear, and the drive gear 641 is a full gear (full circumference gear). Further, between the drive gear 641 and the transmission gear 614 is a reduction drive, that is, the diameter of the drive gear 641 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 may further include a fan 63 mounted on the 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 in signal connection with the motor 64.
  • the parameters such as the rotation angle and the rotation speed of the motor 64 can be controlled by the control module 7.
  • the motor 64 is a stepper motor. Thereby, the rotation control can be conveniently performed.
  • the first monitoring component further includes a driving unit that drives the 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 performing panoramic monitoring; and the second monitoring lens is a face capturing lens for capturing a captured face.
  • the second monitoring lens 616 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 entire face lens rotating device (the second monitoring lens rotating device 6) 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 61 is also modular.
  • the lens holder 613 of the second monitoring lens unit 61 serves as a mounting base for the entire assembly, and all the parts of the second monitoring lens unit 61 are mounted on the lens holder 613. Thereby, the entire second monitoring lens assembly 61 can be easily assembled, replaced and debugged.
  • This modular design is more convenient and quicker for assembly and debugging, and it can also replace the entire lens module according to the needs of face capture, which is more conducive to production and better for better utilization of resources.

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Abstract

本申请公开了一种双目摄像机。所述双目摄像机包括：第一监控组件，所述第一监控组件包括第一监控镜头(3)；第二监控组件，所述第二监控组件包括第二监控镜头(616)和驱动单元，所述第二监控镜头(616)的视场角小于所述第一监控镜头(3)的视场角，所述驱动单元与所述第二监控镜头(616)传动连接，并用于驱动所述第二监控镜头(616)转动，所述第一监控镜头(3)为定焦镜头，所述第二监控镜头(616)为变焦镜头。本申请的双目摄像机的第二监控镜头(616)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进行智能拍摄。

Description

一种双目摄像机
本申请要求于2018年03月30日提交中国专利局、申请号为201820446468.7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
本申请涉及视频监控技术领域，特别是涉及一种双目摄像机，尤其是一种智慧一体摄像机。
背景技术
在双目摄像机中，双目摄像机的两个监控镜头安装在一个壳体内，且两个监控镜头设置为不可转动，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或至少减轻上述缺陷中的至少一个。
实用新型内容
本申请的目的在于提供一种双目摄像机来克服或至少减轻现有技术的上述缺陷中的至少一个。
也就是说，本申请解决的技术问题为提供一种能够调节镜头方向的双目摄像机，以实现智慧一体摄像机。
为实现上述目的，本申请的实施例提供一种双目摄像机，所述双目摄像机包括：
第一监控组件，所述第一监控组件包括第一监控镜头，所述第一监控镜头为定焦镜头；
第二监控组件，所述第二监控组件包括第二监控镜头和驱动单元，所述第二监控镜头为变焦镜头，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转动。
进一步地，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。
进一步地，所述第二监控组件还包括水平延伸或竖直延伸的旋转轴，所 述驱动单元驱动所述第二监控镜头绕所述旋转轴俯仰转动或左右转动。
进一步地，所述第二监控镜头的俯仰转动角度设置在25°至35°的范围内，以及/或者所述第二监控镜头的左右转动角度设置在25°至35°的范围内。
进一步地，所述双目摄像机还包括位于所述第一监控镜头前方的第一视窗，以及位于所述第二监控镜头前方的第二视窗，其中，所述第一视窗的面积小于所述第二视窗的面积。
进一步地，所述第一视窗为圆形或矩形，所述第二视窗为矩形。
进一步地，第一监控镜头设置在所述第二监控镜头之下，所述双目摄像机包括两个补光灯，所述补光灯在高度上与所述第一监控镜头齐平，且在所述第一监控镜头左右两侧对称地各设置一个。
进一步地，所述双目摄像机还包括补光灯驱动单元，所述补光灯驱动单元驱动所述可见光补光灯相对于所述第一监控镜头和/或所述第二监控镜头转动。有利的是，所述补光灯是可见光补光灯。
进一步地，所述第二监控组件包括第二监控镜头组件和支撑架，所述第二监控镜头组件包括所述第二监控镜头，且通过旋转轴转动地设置在所述支撑架上，所述驱动单元为安装在支撑架上的电机。
进一步地，在所述电机的轴上设置有驱动齿轮，
所述第二监控镜头组件还包括镜头支架和传动齿轮，所述传动齿轮和第二监控镜头固定连接在所述镜头支架上，所述旋转轴一体成型地设置在所述镜头支架上，
所述传动齿轮与所述驱动齿轮啮合。
进一步地，所述旋转轴通过轴套转动地架在所述支撑架的半圆形槽上。
进一步地，所述镜头支架包括相互一体成型的主体板和支撑板，所述支撑板垂直于所述主体板，且所述旋转轴设置在所述支撑板的左右两端处。
进一步地，在所述主体板上设置有抱箍安装座，所述第二监控镜头由安装至所述抱箍安装座的镜头抱箍箍紧固定连接至所述镜头支架，在所述支撑板上设置有弧形凹入部，在所述第二监控镜头被箍紧的状态下，所述弧形凹入部与所述第二监控镜头的径向外周轮廓之间的间隙在1mm至3mm之间，且 所述支撑板与所述抱箍安装座在前后方向上间隔开。
进一步地，所述第二监控镜头组件还包括前端支架和前端组件，所述前端支架固定连接至所述镜头支架，所述前端组件固定连接至所述前端支架。
进一步地，所述传动齿轮为扇形齿轮，所述驱动齿轮为全齿轮。
进一步地，所述双目摄像机还包括风扇，所述风扇安装在所述支撑架上。
进一步地，所述电机是步进电机，所述步进电机的一端处设置所述驱动齿轮，所述步进电机经由所述驱动齿轮和传动齿轮而驱动所述第二监控镜头绕所述旋转轴俯仰转动或左右转动。
进一步地，所述第一监控组件还包括驱动所述第一监控镜头转动的驱动单元。
进一步地，所述第一监控镜头为全景镜头，用于进行全景监控；所述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进行智能拍摄。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。
附图说明
图1是根据本申请一实施例的双目摄像机的示意性立体图。
图2是图1所示的双目摄像机去除遮阳罩之后的俯视示意图。
图3是第二监控镜头旋转装置的分解示意图。
图4是电机的示意性立体图。
图5是第二监控镜头组件的分解示意图。
图6a、图6b和图6c是第二监控镜头的俯仰旋转动作示意图。其中，图6a示出第二监控镜头处于上仰状态，图6b示出第二监控镜头处于中间状态，图6a示出第二监控镜头处于下俯状态。
附图标记：
1 遮阳罩 612 前端组件
2 前盖 613 镜头支架
3 第一监控镜头 614 传动齿轮
4 防水帽 615 轴套
5 机身 616 第二监控镜头
6 第二监控镜头旋转装置 617 镜头抱箍
7 控制模块 6131 安装臂
8 后盖 6132 齿轮安装孔
61 第二监控镜头组件 6133 旋转轴
62 支撑架 6134 第二安装孔
63 风扇 6135 主体板
64 电机 6136 支撑板
611 前端支架 6317 抱箍安装座
621 半圆形槽 6138 弧形凹入部
641 驱动齿轮    
具体实施方式
在附图中，使用相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面结合附图对本申请的实施例进行详细说明。
在本申请的描述中，术语“中心”、“纵向”、“横向”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请保护范围的限制。
图1是本申请一实施例的双目摄像机的示意图。图示的双目摄像机为筒机，且包括两个镜头，用于对镜头前方区域进行监控。根据需要，本申请的双目摄像机还可以设置为其他形式。
图1所示的双目摄像机可以设置为智慧一体摄像机。例如第一监控镜头为全景监控镜头，具有较大的视场角；而第二监控镜头为人脸抓拍镜头，具有较小的视场角。也就是说，第二监控镜头主要用于对全景画面中的人脸进行捕捉抓拍。
图1所示的双目摄像机设置有驱动单元(例如电机)，驱动第二监控镜头 在竖直方向上转动(俯仰摆动)，或者在水平方向上转动(左右摆动)，进而能够抓拍到画面上更大范围的人脸，抓拍效果相较于传统筒机更优。
图1中示出了双目摄像机的遮阳罩1、前盖2、第一监控镜头3、防水帽4和机身5。图2中示出了机身5、第二监控镜头旋转装置6、控制模块7和后盖8。防水帽4设置在后盖8的下方，用于线材的进出防水。
其中，机身5包含有第一监控镜头3、第二监控镜头旋转装置6和控制模块7。第一监控镜头3是第一监控镜头组件的主要组成部分。
在一个备选实施例中，第一监控镜头3为定焦镜头，且第一监控镜头3相对于第二监控镜头616具有较大的视场角。例如，第一监控镜头3的视场角在100°至120°的范围内，如设置为110°。而第二监控镜头616为变焦镜头，且具有较小的视场角。例如，第二监控镜头616的视场角在50°至70°的范围内，如设置为60°。
也就是说，本申请的图示实施例的双目摄像机包括：
第一监控组件，所述第一监控组件包括第一监控镜头3，所述第一监控镜头3为定焦镜头；
第二监控组件，所述第二监控组件包括第二监控镜头616和驱动单元，所述第二监控镜头616为变焦镜头，所述第二监控镜头616的视场角小于所述第一监控镜头3的视场角，所述驱动单元与所述第二监控镜头616传动连接，并用于驱动所述第二监控镜头616转动。
所述第二监控组件还可以包括具有水平延伸的旋转轴6133或竖直延伸的旋转轴(未图示)。所述驱动单元驱动所述第二监控镜头616绕所述旋转轴6133俯仰转动或左右转动。竖直延伸的旋转轴，只需将图3所示的整个第二监控镜头旋转装置6绕镜头的中心轴线旋转90度即可。
在一个备选实施例中，所述第二监控镜头616的俯仰转动角度，即允许进行俯仰调节范围的区间大小，设置为30°(±15°)，以及/或者所述第二监控镜头616的左右转动角度，即可左右调节角度的大小，设置为30°(±15°)。需要指出的是，上述的转动范围是示例性的，也可以设置其他的转动范围，例如设置在25°(±12.5°)至35°(±17.5°)的范围内。为了实现上述的转动范围，可以设置相应的限位结构。限位结构的具体形式、位置 等可以根据需要设置。
如图1所示，所述双目摄像机包括位于所述第一监控镜头3前方的第一视窗，以及位于所述第二监控镜头616前方的第二视窗，其中，所述第一视窗的面积小于所述第二视窗的面积。例如，所述第二视窗的面积为所述第一视窗的面积的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。
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。在图示实施例中，所述第一视窗为圆形，所述第二视窗为矩形。第一视窗也可以设置为矩形，第二视窗也可以设置为圆形。
如图1所示，第一监控镜头3设置在所述第二监控镜头616之下，所述双目摄像机包括两个补光灯，所述补光灯在高度上与所述第一监控镜头3齐平，且在所述第一监控镜头3左右两侧对称地各设置一个。有利的是，所述补光灯是可见光补光灯。
在一个备选实施例中，所述双目摄像机还包括补光灯驱动单元，所述补光灯驱动单元驱动所述可见光补光灯相对于所述第一监控镜头3和/或所述第二监控镜头616转动。所述补光灯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，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。
有利的是，补光灯安装在灯板上，而灯板随着监控镜头3和/或所述第二监控镜头616转动。从而，无需另行设置补光灯驱动单元。
第二监控镜头旋转装置6是本申请的核心装置，也是实现第二监控镜头旋转的装置。参见图3，第二监控镜头旋转装置6包括第二监控镜头组件(例如人脸镜头组件)61、支撑架62、风扇63和电机64。
第二监控镜头组件61、风扇63和电机64都安装在支撑架62上。支撑架62例如通过螺钉固定到机身5内部。
第二监控镜头组件61包括第二监控镜头616，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61支撑在支撑架62的半圆形槽621上， 电机64用于驱动第二监控镜头组件61相对于支撑架62转动。也就是说，电机64是用于驱动第二监控镜头组件61转动的驱动单元，也就是说用于驱动第二监控镜头616转动的驱动单元。
更具体地，第二监控镜头组件61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、轴套615、第二监控镜头616和镜头抱箍617。
在图示实施例中，利用电机64带同电机上的驱动齿轮641(参见图4)转动，进而驱动传动齿轮614(参见图3和图5)，来实现第二监控镜头616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。
进一步地，电机64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616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61和支撑架62，所述第二监控镜头组件61包括所述第二监控镜头616，且通过旋转轴6133转动地设置或支撑在所述支撑架62上，所述驱动单元为安装在支撑架62上的电机64。
如前所述，旋转轴6133水平延伸，但是本申请不限于此，旋转轴6133还可以竖直延伸，或者以其他预设角度延伸。在图示实施例中，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。每一段半轴与一个轴套615转动配合，轴套615支撑在支撑架62的半圆形槽621上。更具体地，轴套615通过螺钉固定至支撑架62。
在电机64的轴上设置有驱动齿轮641。所述第二监控镜头组件61包括镜头支架613和传动齿轮614，所述传动齿轮614和第二监控镜头616固定连接在所述镜头支架613上，所述旋转轴6133一体成型地设置在所述镜头支架613上。所述传动齿轮614与所述驱动齿轮641啮合。
传动齿轮614的中心线与旋转轴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61绕着旋转轴6133的中心线转动。
如图5所示，第二监控镜头组件61还包括镜头支架613，所述第二监控镜头616和所述传动齿轮614固定连接在所述镜头支架613上。旋转轴6133通过轴套615转动地架在所述支撑架62的半圆形槽621上。
参见图5，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垂直于所述主体板6135，且所述旋转轴6133设置在所述支撑板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。在所述主体板6135上设置有抱箍安装座6317。第二监控镜头616由安装至所述抱箍安装座6317的镜头抱箍617箍紧固定连接至所述镜头支架613，在所述支撑板6136上设置有弧形凹入部6138，在所述第二监控镜头616被箍紧的状态下，所述弧形凹入部6138与所述第二监控镜头616的径向外周轮廓之间的间隙在1mm至3mm之间，且所述支撑板6136与所述抱箍安装座6317在前后方向上间隔开。这样，在将第二监控镜头616箍紧之前，弧形凹入部6138能够与第二监控镜头616接触，对第二监控镜头616提供辅助支撑。有利于第二监控镜头616的安装。
如图5所示，所述第二监控镜头组件61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固定连接至所述镜头支架613，所述前端组件612固定连接至所述前端支架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641可以采用任何适当的齿轮。进一步地，所述传动齿轮614为扇形齿轮，所述驱动齿轮641为全齿轮(整周齿轮)。进一步地，驱动齿轮641与传动齿轮614之间为减速传动，也就是说，驱动齿轮641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3，所述双目摄像机还可以包括风扇63，所述风扇63安装在所述支撑架62上。风扇63例如用于前端组件的冷却。
参见图2，所述双目摄像机包括控制模块7，所述控制模块7与所述电机64信号连接。可以通过控制模块7对电机64的转动角度、转动速度等参数进行控制。有利的是，电机64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，所述第一监控组件还包括驱动所述第一监控镜头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。
进一步地，所述第一监控镜头为全景镜头，用于进行全景监控；所述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616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。
整个人脸镜头旋转装置(第二监控镜头旋转装置6)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61也是模块化的。第二监控镜头组件61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61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61。
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。
最后需要指出的是：以上实施例仅用以说明本申请的技术方案，而非对其限制。本领域的普通技术人员应当理解：可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (16)

  1. 一种双目摄像机，其特征在于，包括：
    第一监控组件，所述第一监控组件包括第一监控镜头(3)，所述第一监控镜头(3)为定焦镜头；
    第二监控组件，所述第二监控组件包括第二监控镜头(616)和驱动单元，所述第二监控镜头(616)为变焦镜头，所述第二监控镜头(616)的视场角小于所述第一监控镜头(3)的视场角，所述驱动单元与所述第二监控镜头(616)传动连接，并用于驱动所述第二监控镜头(616)转动。
  2. 如权利要求1所述的双目摄像机，其特征在于，所述第一监控镜头(3)的视场角在100°至120°的范围内，所述第二监控镜头(616)的视场角在50°至70°的范围内。
  3. 如权利要求1所述的双目摄像机，其特征在于，
    所述第二监控组件还包括水平延伸或竖直延伸的旋转轴(6133)，所述驱动单元驱动所述第二监控镜头(616)绕所述旋转轴(6133)俯仰转动或左右转动。
  4. 如权利要求3所述的双目摄像机，其特征在于，所述第二监控镜头(616)的俯仰转动角度设置在25°至35°的范围内，以及/或者所述第二监控镜头(616)的左右转动角度设置在25°至35°的范围内。
  5. 如权利要求1所述的双目摄像机，其特征在于，所述双目摄像机还包括位于所述第一监控镜头(3)前方的第一视窗，以及位于所述第二监控镜头(616)前方的第二视窗，其中，所述第一视窗的面积小于所述第二视窗的面积。
  6. 如权利要求5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. 如权利要求1-6中任一项所述的双目摄像机，其特征在于，
    所述第二监控组件包括第二监控镜头组件(61)和支撑架(62)，所述第二监控镜头组件(61)包括所述第二监控镜头(616)，且通过旋转轴(6133)转动地设置在所述支撑架(62)上，所述驱动单元为安装在支撑架(62)上的电机(64)。
  8. 如权利要求7所述的双目摄像机，其特征在于，
    在所述电机(64)的轴上设置有驱动齿轮(641)，
    所述第二监控镜头组件(61)还包括镜头支架(613)和传动齿轮(614)，所述传动齿轮(614)和第二监控镜头(616)固定连接在所述镜头支架(613)上，所述旋转轴(6133)一体成型地设置在所述镜头支架(613)上，
    所述传动齿轮(614)与所述驱动齿轮(641)啮合。
  9. 如权利要求8所述的双目摄像机，其特征在于，
    所述旋转轴(6133)通过轴套(615)转动地架在所述支撑架(62)的半圆形槽(621)上。
  10. 如权利要求9所述的双目摄像机，其特征在于，所述镜头支架(613)包括相互一体成型的主体板(6135)和支撑板(6136)，所述支撑板(6136)垂直于所述主体板(6135)，且所述旋转轴(6133)设置在所述支撑板(6136)的左右两端处。
  11. 如权利要求10所述的双目摄像机，其特征在于，在所述主体板(6135)上设置有抱箍安装座(6317)，所述第二监控镜头(616)由安装至所述抱箍安装座(6317)的镜头抱箍(617)箍紧固定连接至所述镜头支架(613)，在所述支撑板(6136)上设置有弧形凹入部(6138)，在所述第二监控镜头(616)被箍紧的状态下，所述弧形凹入部(6138)与所述第二监控镜头(616)的径向外周轮廓之间的间隙在1mm至3mm之间，且所述支撑板(6136)与所述抱箍安装座(6317)在前后方向上间隔开。
  12. 如权利要求9所述的双目摄像机，其特征在于，所述第二监控镜头组件(61)还包括前端支架(611)和前端组件(612)，所述前端支架(611)固定连接至所述镜头支架(613)，所述前端组件(612)固定连接至所述前端支架(611)。
  13. 如权利要求8所述的双目摄像机，其特征在于，所述传动齿轮(614)为扇形齿轮，所述驱动齿轮(641)为全齿轮。
  14. 如权利要求7所述的双目摄像机，其特征在于，所述双目摄像机还包括风扇(63)，所述风扇(63)安装在所述支撑架(62)上。
  15. 如权利要求8所述的双目摄像机，其特征在于，
    所述电机(64)是步进电机，所述步进电机的一端处设置所述驱动齿轮，所述步进电机经由所述驱动齿轮和传动齿轮而驱动所述第二监控镜头(616)绕所述旋转轴(6133)俯仰转动或左右转动。
  16. 如权利要求1-6中任一项所述的双目摄像机，其特征在于，所述第一监控镜头为全景镜头，用于进行全景监控；所述第二监控镜头为人脸抓拍镜头，用于捕捉抓拍人脸。
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