WO2020147077A1 - 柔性激光检测和测距系统以及设有该系统的移动设备 - Google Patents

柔性激光检测和测距系统以及设有该系统的移动设备 Download PDF

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Publication number
WO2020147077A1
WO2020147077A1 PCT/CN2019/072207 CN2019072207W WO2020147077A1 WO 2020147077 A1 WO2020147077 A1 WO 2020147077A1 CN 2019072207 W CN2019072207 W CN 2019072207W WO 2020147077 A1 WO2020147077 A1 WO 2020147077A1
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optical fiber
detection
lidar
ranging system
lidar device
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PCT/CN2019/072207
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English (en)
French (fr)
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陈颀潇
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西门子（中国）有限公司
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Priority to PCT/CN2019/072207 priority Critical patent/WO2020147077A1/zh
Publication of WO2020147077A1 publication Critical patent/WO2020147077A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements

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  • the present invention relates to a new type of flexible laser detection and ranging system and mobile equipment provided with the system, such as vehicles and mobile robots.
  • Vehicles can be configured to have autonomous driving functions, especially autonomous mode control, which makes perception technology particularly important.
  • autonomous mode control In order to obtain sufficient information to assist route planning and acceleration/deceleration control, the vehicle needs to realize the sensing of the surrounding environment and the objects that appear with high resolution and high reliability (such as sensing the position of the object, moving speed, and moving direction) , Shape, outline, etc.).
  • Existing sensing technologies include: for example, camera, radar, ultrasound, etc.).
  • LiDAR (Laser Detection and Range) technology that is, laser detection and ranging technology is considered to be one of the more reliable and mature sensing technologies.
  • LiDAR technology uses a LiDAR sensor to rapidly emit laser pulses (usually up to 150,000 pulses per second).
  • the laser signal reaches an obstacle and is reflected back to the LiDAR sensor.
  • the sensor accurately calculates and determines the distance between the sensor and the obstacle by measuring the time from emission to return of the laser signal. It can also detect the exact size of the target object.
  • LiDAR is usually used to draw high-resolution maps.
  • the LiDAR system is generally divided into three main parts: the first is the laser transmitter, which emits laser rays; the second part is the scanning and optical components, which are mainly used to collect the distance between the reflection point and the time and horizontal angle of the point; The three parts are photosensitive parts, which mainly detect the intensity of the return light.
  • Fig. 1 exemplarily shows a schematic diagram of an existing vehicle equipped with a LiDAR system.
  • the LiDAR device 800 needs to be installed on the roof of the car. Since the laser light of the LiDAR device 800 travels in a straight line, the scanning range of the LiDAR device 800 on the roof is limited to the range shown by A1 and A2 in FIG. 1 due to the occlusion of the vehicle body. Parts B1 and B2 schematically show positions that the laser light cannot reach due to being blocked by the vehicle body. Therefore, the areas B1 and B2 cannot be scanned directly by the LIDAR device 800.
  • additional body LiDAR devices 801, 802, 803, etc. are specially provided. These additional body part LiDAR devices are usually arranged in the lower part of the body to make up for the scan blind area of the roof LiDAR device 800.
  • the additional body part LiDAR device will inevitably lead to higher overall costs.
  • the present invention aims to provide a solution that can solve one or more of the above-mentioned problems.
  • the present invention provides a detection and ranging system, including:
  • a light detection and ranging (LIDAR) device wherein the light source of the LIDAR device can rotate around an axis;
  • each optical fiber unit is arranged on the periphery of the LIDAR device, so that the light source can be incident on the optical fiber;
  • each optical fiber unit is respectively arranged at a preset detection position of a mobile device.
  • the LiDAR device can be arranged inside the mobile device instead of on the top, thereby eliminating the need for redesigning the mobile device aerodynamics.
  • the optical fiber can directly transport the laser to the detection positions, there is no need to additionally install additional LiDAR devices at these detection positions, thereby further saving costs.
  • the optical fiber unit is a single optical fiber or an optical fiber bundle composed of multiple optical fibers.
  • the proximal end of the optical fiber unit is arranged toward the LiDAR device along the radial direction of the axis.
  • the proximal end of the optical fiber unit close to the LiDAR device is fixed by a clamping device.
  • clamping devices may be, for example, clamping devices arranged along the circumference of the LiDAR device, which provide installation positions for optical fibers.
  • a plurality of the optical fiber units are arranged at equal intervals along the circumferential direction of the LiDAR device. This design can receive the laser beam uniformly.
  • the distal end of the optical fiber unit is provided with a micro-optical mirror for collecting the laser beam reflected by the environment.
  • the micro-optical lens may be a lens or a combination of lenses capable of condensing light, such as a convex lens or a self-condensing lens.
  • the distal end of the optical fiber unit away from the LiDAR device is arranged at a preset detection point on a mobile device, so that the laser can be emitted toward the surrounding environment through the distal end.
  • the distal end of these optical fibers replaces the LiDAR device additionally provided for blind spots in the prior art, thereby greatly reducing the cost.
  • the distal end of the optical fiber is configured to be able to move and/or rotate relative to the mobile device, whereby the angle of the laser beam emission can be adjusted relative to the mobile device, which can be further optimized Detection.
  • the detection points are located on the part of the mobile device that is close to the ground during driving. Generally, these locations are also locations that are difficult to detect directly by traditional LiDAR devices. By arranging the distal end of the optical fiber, the surrounding environment of these locations can be detected simply and effectively.
  • Another aspect of the present invention provides a mobile device provided with the detection and ranging system according to any one of the foregoing embodiments.
  • the mobile device is a vehicle or a mobile robot.
  • the mobile device can also be an aircraft or a drone.
  • Fig. 1 exemplarily shows a vehicle provided with a LiDAR system according to the prior art
  • Fig. 2 exemplarily shows a vehicle provided with a LiDAR system according to an embodiment of the present invention
  • Fig. 3 exemplarily shows a LiDAR system provided with an embodiment according to the present invention
  • Fig. 4 exemplarily shows the design of a distal end provided with an optical fiber according to an embodiment of the present invention
  • Fig. 5 exemplarily shows a vehicle provided with a LiDAR system according to an embodiment of the present invention.
  • the present application proposes a LiDAR system including a LiDAR device and optical fiber.
  • Fig. 2 exemplarily shows an embodiment according to the present invention.
  • a rotary LiDAR device 100 is provided in the vehicle, which can be any rotary LiDAR device in the prior art, and the specific structure is not repeated here.
  • the LiDAR device 100 according to the present invention can be installed inside the vehicle body instead of on the roof of the vehicle body.
  • the LiDAR system according to the present invention includes the rotating LiDAR device 100 and a plurality of optical fibers 300 or optical fiber bundles 300 laid in the vehicle.
  • Optical fiber can guide the direction of light (including laser). As shown in FIG.
  • each optical fiber 300 is arranged around the outer circumference of the LiDAR device 100, and is used to receive the laser light emitted by the rotation of the LiDAR device 100 and transmit the laser light to the ideal vehicle body.
  • the launch position is, for example, the installation position of the additional LiDAR device shown in FIG. 1.
  • the distal end of these optical fibers 300 can also receive the laser light reflected by the external environment and conduct it back to the LiDAR device 100 for detection and judgment.
  • each optical fiber 300 shown in the figure may be a single optical fiber or an optical fiber bundle composed of multiple optical fibers. For convenience, it will be collectively referred to as optical fiber in the description of this application.
  • these optical fibers 300 respectively have a proximal end 320 close to the LiDAR device 100 when installed, and a distal end 310 installed on the detection point of the vehicle body. Since the optical fiber itself is soft and can be arranged flexibly, the rotary LiDAR device 100 according to the present invention can theoretically be arranged in any convenient space in the car, for example, near the central channel of the chassis, or in the car compartment. In the space near the interior roof. In this way, no additional body design is required to arrange these LiDAR devices.
  • the optical fibers 300 according to the present invention extend from the LiDAR device 100 to several ideal launch positions on the vehicle body through the proximal end 320 thereof (see FIG. 5).
  • the laser beam from the rotating LiDAR device emits the laser beam to the environment around the vehicle body through the distal end of these optical fibers.
  • the distal ends 310 of these optical fibers replace the various additional LiDAR devices installed at these launch positions in the prior art.
  • Due to the low cost of the optical fiber a large number of emission points can be arranged around the vehicle body, thereby obtaining more accurate detection accuracy.
  • Fig. 3 exemplarily shows an exemplary embodiment of the proximal end 320 of the optical fiber 300 according to the present invention.
  • a clamping device 10 may be provided on the outer periphery of the LiDAR device 100.
  • the clamping device 10 may be a transparent barrel structure.
  • the clamping device 10 can also be an opaque tubular structure with mounting holes for installing the optical fiber 300; or a spirally arranged strip structure around the outer periphery of the LiDAR device 100 ,
  • the installation positions for installing the optical fiber 300 are distributed on the strip structure; or the vertical rod or cage design evenly distributed on the outer periphery of the LiDAR device 100, wherein the optical fiber 300 is installed on these rods
  • the mounting hole or the mounting position and other fixing structures that can be fixed on the outer periphery of the LiDAR device 100, which can arrange the end faces of the proximal ends 320 of the plurality of optical fibers 300 toward the LiDAR device 100.
  • the end surface of the proximal end 320 of the optical fiber 300 can be arranged orthogonal to the laser light, so that the laser light can enter the optical fiber 300 perpendicularly, thereby reducing loss.
  • FIG. 3 exemplarily takes the transparent clamping part 10 packed in a barrel as an example, which is arranged around the LiDAR device 100.
  • a plurality of optical fibers 300 are fixed on the transparent peripheral surface of the clamping device 10.
  • the optical fiber 300 can surround the LiDAR device and be fixed to the clamping device 10 by means such as bonding, and is preferably fixed to the transparent peripheral wall equidistantly along the circumference of the LiDAR device, so that each optical fiber 300 Both can receive the laser light from the LiDAR device 100.
  • FIG. 3 also exemplarily shows the positions where a plurality of optical fibers 300 can be arranged with dotted lines. The number of optical fibers 300 and the specific arrangement can be selected by the designer based on the requirements of the detection result and the structure of the vehicle.
  • the LiDAR device 100 is configured to be able to continuously rotate around an axis (for example, a vertical axis), so as to realize scanning of the vehicle environment.
  • a laser emitting optical mirror 110 and a laser receiving optical mirror 120 are also provided on the LiDAR device 100.
  • the laser beam or light pulse is emitted through the optical mirror 110 and guided to the distal end 310 of each optical fiber 300 via the proximal end 320 of each optical fiber fixed on the clamping device 10.
  • a micro-optical mirror 380 such as a convex lens or a self-focusing lens (Grin Lens), is provided at the distal end 310 of each optical fiber for receiving and collecting the reflected laser beam, and passing the concentrated laser beam
  • the optical fibers travel back to the proximal ends 320 of these optical fibers.
  • the laser beam penetrates the proximal end 320 of the optical fiber and enters the receiving optical part of the LiDAR device 100, such as the laser receiving optical mirror 120 shown in FIG. 3.
  • the structure of the transmitting optical part 110 and the receiving optical part 120 of the LiDAR device 100 and its analysis principle of laser light have various embodiments according to the prior art, which will not be repeated in the application of the present invention, which is sufficient for the LiDAR system of the present invention. It does not constitute a limitation, that is, in the LiDAR system according to the present invention, the LiDAR device can be any type of rotary LiDAR device.
  • Fig. 5 schematically shows a side view of a vehicle equipped with a LiDAR system according to the present invention.
  • the only LiDAR device 100 in the entire system is installed in the interior space of the vehicle 200 without being placed on the roof of the vehicle, which will not affect the aerodynamics of the vehicle, and at the same time, it can save the complicated design of the roof. The resulting cost increase.
  • the distal ends 310 of the plurality of optical fibers 300 according to the present invention are arranged at locations where detection is required according to the structure of the vehicle 200. For example, in the prior art, additional LiDAR devices are usually arranged at various locations.
  • optical fiber 300 is shown as a single optical fiber in the various views according to the present invention, it should be understood that the components shown as optical fibers may also be optical fiber bundles, that is, a plurality of optical fibers. A fiber bundle composed of optical fibers.
  • the laser emitting direction and height of the entire LiDAR system can be achieved by adjusting the arrangement angle and height of the optical fiber 300 or the distal end 310 of the optical fiber bundle 300.
  • the distal end 310 of each optical fiber 300 can be connected to a fixed position of the vehicle body through a specific mechanical connector, such as a wire outlet hole at a specific position, as shown in D1-D9 in Figure 5 .
  • the angles of the distal ends 310 of these optical fibers 300 with respect to the horizontal plane and the axis of the vehicle body can be adjusted to adjust the range and angle of laser detection.
  • the optical fiber 300 arranged in the lower part of the vehicle body can easily detect relatively low obstacles near the vehicle body, such as steps, pets or children, at positions such as D1, D3, D4, D5, and D6, thereby further reducing the cost Ways to ensure the safety of vehicles and pedestrians.
  • LiDAR system can also be installed on other mobile devices, such as mobile robots, aircraft, drones, and so on.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

一种柔性激光检测和测距系统以及设有该系统的移动设备（200），其中系统包括：一个LIDAR装置（100），其中LIDAR装置（100）的光源能够绕一轴线旋转；复数个光导纤维（300）单元，其中，每个光导纤维（300）单元的近端（320）布置在LIDAR装置（100）的周边，使得光源能够入射到光导纤维（300）单元中；以及每个光导纤维（300）单元的远端（310）分别布置在车身的预设的探测位置（D1,D2,D3,D4,D5,D6,D7,D8,D9）上。

Description

柔性激光检测和测距系统以及设有该系统的移动设备 技术领域
本发明涉及一种新型的柔性的激光检测和测距系统以及设有该系统的移动设备，例如车辆和移动式机器人等。
背景技术
除非另有说明，本节中描述的内容不是本申请的权利要求的现有技术，并且这些内容不因被包括在本节中而被认为是现有技术。
车辆可以被配置为具有自动驾驶功能，尤其是自主式模式操控，这使得感知技术变得尤其重要。为了获得足够的信息以辅助路线规划和加速/减速控制，车辆需要以高分辨率和高可靠度实现对周围的环境、出现的物体的感测(例如感测物体的位置、移动速度、移动方向、形状、外轮廓等)。现有的感测技术包括：例如摄像、雷达、超声等)。LiDAR(Laser Detection and Ranging)技术，即激光检测和测距技术被认为是较为可靠且成熟的感测技术之一。LiDAR技术利用LiDAR传感器快速发射激光脉冲(通常最高可达每秒150000次脉冲)激光信号到达障碍物后反射回LiDAR传感器。传感器通过测量激光信号从发射到返回的时间，精确计算确定传感器到障碍物之间的距离，它还能探测目标物体的准确尺寸。LiDAR通常用于高分辨率地图的绘制。
LiDAR系统一般分为三个主要部分：第一是激光发射器，其发射出激光射线；第二部分是扫描与光学部件，主要用于收集反射点距离与该点发生的时间和水平角度；第三个部分是感光部件，主要检测返回光的强度。
图1示例性地示出了现有的装备有LiDAR系统的车辆的示意图。为了实现360°的扫描，需将LiDAR装置800安装在车顶。由于LiDAR装置800的激光光线沿直线传播，导致车顶的LiDAR装置800的扫描范围由于车身的遮挡被限制在如图1中的A1、A2所示，的范围中。B1、B2部分示意性地示出了激光光线由于被车体本身遮挡而无法到达的位置，因此，B1、B2区域无法被LIDAR装置800直接扫描。为此，在现有技术中也提出，为了解决LiDAR装置800的盲区B1、B2无法被探测的问题，而专门设置额外的车身部LiDAR装置801、802、803等。这些额外的车身部LiDAR装置通常布置在车身的下部，以弥补车顶LiDAR装置800的扫描盲区。然而额外的车身部LiDAR装置必将导致整体的成本升高。
发明内容
本发明旨在提供一种能够解决上述一个或多个问题的方案。在一方面，本发明提出了一种一种检测和测距系统，包括：
一个光检测和测距(LIDAR)装置，其中所述LIDAR装置的光源能够绕一轴线旋转；
复数个光导纤维单元，其中
每个光导纤维单元的近端布置在所述LIDAR装置的周边，使得光源能够入射到所述光纤中；以及
每个光导纤维单元的远端分别布置在一个移动设备的预设的探测位置上。
通过这种设计，能够将LiDAR装置布置于移动装置的内部而非顶部，进而省去了对移动设备重新进行空气动力学的设计。此外，由于光导纤维能够将激光直接输送至探测位置，而无需额外在这些探测位置设置附加的LiDAR装置，由此进一步节约了成本。
根据一种有利的实施方式，所述光导纤维单元为单根光导纤维或者由多跟光导纤维组成的光导纤维束。
根据一种有利的实施方式，所述所述光导纤维单元的近端沿所述轴线的径向朝向所述LiDAR装置布置。由此，使得LiDAR装置发出的激光能够零角度入射光导纤维，进而减少损耗。
根据一种有利的实施方式，所述光导纤维单元的靠近所述LiDAR装置的近端通过一个夹持装置进行固定。这些夹持装置可以是例如沿着所述LiDAR装置的周向设置的夹持装置，其为光导纤维提供安装位置。
根据一种有利的实施方式，多个所述光导纤维单元沿所述LiDAR装置的周向等间距地布置。这种设计能够均匀的接收激光光束。
根据一种有利的实施方式，所述光导纤维单元的远端设有微型光学镜，用于聚集环境反射的激光束。所述微型光学镜可以是凸透镜或者自聚透镜等能够使光聚集的透镜或者透镜的组合。
根据一种有利的实施方式，所述光导纤维单元的远离所述LiDAR装置的远端布置于一个移动设备上的预设的探测点，使得激光能够通过所述远端朝周围环境发射。这些光导纤维的远端代替了现有技术中为了盲区而附加设置的LiDAR装置，由此极大地降低了成本。
更为有利的是，所述光导纤维的远端被设置为能够相对于所述移动设备移动和/或转动，由此，激光光束发射的角度能够相对于移动设备进行调节，由此能够进一步优化检测。
更为有利的是，所述探测点位于所述移动设备上在行驶时靠近地面的部分，通常这些位置也是传统LiDAR装置难以直接探测的位置。而通过布置光导纤维的远端，可以简单有效的对这些位置的周边环境进行探测。
本发明的另一方面提出了一种移动设备，其设有依据上述各个实施方式中任意一项所述的检测和测距系统。
有利的是所述移动设备为车辆或者移动式机器人。此外，该移动设备还可以是飞行器或者无人机。
附图说明
以下附图仅旨在于对本发明做示意性说明和解释，并不限定本发明的范围。其中，
图1示例性地示出了设有依据现有技术的LiDAR系统的车辆；
图2示例性地示出了设有依据本发明的一种实施方式的LiDAR系统的车辆；
图3示例性地示出了设有依据本发明的一种实施方式的LiDAR系统；
图4示例性地示出了设有依据本发明的一种实施方式的光导纤维的远端的设计；
图5示例性地示出了设有依据本发明的一种实施方式的LiDAR系统的车辆。
附图标记列表
10                                  光导纤维的夹持装置
100                                 LiDAR装置
110，120                            LiDAR装置的光学部件
200                                 车辆、移动设备
300，301，302，303，304             光导纤维、光导纤维束
310                                 光导纤维的远端
320                                 光导纤维的近端
380                                 光导纤维的光学件
A1，A2                              车顶LiDAR装置的可探测范围
B1，B2                              车顶LiDAR装置的盲区范围
D1～D9                              光导纤维的远端设置点
801，802，803                       附加的LiDAR装置
具体实施方式
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图说明本发明的具体实施方式。
为了实现全方位的检测和测距，本发明申请提出一种包括LiDAR装置以及光导纤维的LiDAR系统。
图2示例性地示出了一种依据本发明的实施方式。如图2所示，在车中设有一个旋转式的LiDAR装置100，其可以是现有技术中任意一种旋转式的LiDAR装置，具体结构在此不再赘述。与现有技术不同的是，依据本发明的的LiDAR装置100能够被设置于车体的内部，而非位于车体外部的车顶位置。依据本发明的LiDAR系统包括该旋转LiDAR装置100以及铺设于车内的多条光导纤维300或者光导纤维束300。光导纤维能够引导光线(包括激光)的走向。如图2所示出，各条光导纤维300的近端320环绕于LiDAR装置100的外周进行布置，用于接收由LiDAR装置100旋转发出的激光光线，并将这些激光光线传导至车身上理想的发射位置，例如在图1中所示出的附加LiDAR装置的安装位置上。这些光导纤维300的远端还能够接收外界环境反射的激光线性并将其传导回LiDAR装置100用于检测和判断。
需要指出的是，依据本发明在图中所示出的各条光导纤维300可以是单根的光导纤维，也可以是由多根光导纤维组成的光导纤维束。为了方便，将在本申请文件的描述中统一称为光导纤维。
结合图2和图4所示，这些光导纤维300分别具有安装时靠近LiDAR装置100的近端320以及安装于车身的探测点的远端310。由于光导纤维本身柔软，能够灵活地进行布置，由此理论上可以将依据本发明的旋转式LiDAR装置100布置在车内的任何方便布置的空间中，例如布置在底盘的中央通道附近，或者车厢内部车顶附近的空间中。通过这种方式无需额外的车身设计以布置这些LiDAR装置。而依据本发明的这些光导纤维300通过其近端320从LiDAR装置100开始延伸到车身上的数个理想发射位置(参加图5)。源自旋转式LiDAR装置的激光光束通过这些光导纤维的远端向车身周围的环境发射激光束。这些光导纤维的远端310即替代了现有技术中设置于这些发射位置的各个附加的LiDAR装置。而且由于光导纤维成本低，因此可以在车身一周大量布置发射点，由此获得更为精确地探测精度。
图3示例性地示出了依据本发明的光导纤维300的近端320的一种示例性地实施方式。例如，如图3所示，可以在LiDAR装置100的外周设置一个夹持装置10。在该实施方式中，夹持装置10可以是透明的桶装结构。虽然没有示出，但是可以想到的是，该夹持装置10还可以是不透明的管状结构其上设有安装光导纤维300的安装孔；或者是螺旋状的 绕LiDAR装置100的外周布置条装结构，在条装结构上分布用于安装光导纤维300的安装位置；或者均匀地分布于LiDAR装置100的外周的竖直的杆状或者笼装设计，其中在这些杆上设有安装光导纤维300的安装孔或者安装位置；以及其他能够固定于LiDAR装置100外周的固定结构，其能够将多根光导纤维300的近端320的端面朝向所述LiDAR装置100布置即可。作为一种优选的布置方式，光导纤维300的近端320的端面能够与激光光线正交布置，从而使得激光光线能够垂直入射进入光导纤维300，进而减少损耗。
图3示例性地以桶装的透明夹持部10为例，其围绕LiDAR装置100设置。在该夹持装置10的透明周面上固接有多条光导纤维300。光导纤维300能够环绕于LiDAR装置通过例如粘接等方式固接于该夹持装置10，优选地是等距地沿LiDAR装置的周向固接于该透明的周壁上，使得每条光导纤维300均可以接收来着LiDAR装置100的激光。图3还用虚线示例性地示出了可供多条光导纤维300布置的位置。光导纤维300的数量以及具体布置方式可以通过设计人员对于探测结果的需求以及车辆的结构进行选择。LiDAR装置100被配置为能够围绕轴线(例如竖直轴线)连续旋转，从而实现对车辆环境的扫描。通常，在LiDAR装置100上还设有激光发射光学镜110以及激光接收光学镜120。当LiDAR装置100旋转时，激光束或者说光脉冲通过光学镜110发出，经由固接于夹持装置10上的各条光导纤维的近端320被引导至各条光导纤维300的远端310。
依据本发明，在每根光导纤维的远端310处都设有微型光学镜380，例如凸透镜或者自聚焦透镜(Grin Lens)，用于接收和聚集反射的激光束，并将聚集的激光束通过光导纤维传输回这些光导纤维的近端320。激光束透过光导纤维的近端320射入LiDAR装置100的接收光学部，例如图3中所示的激光接收光学镜120。
LiDAR装置100的发射光学部110和接收光学部120的构造以及其对激光光线的分析原理依据现有技术有多种实施方式，在本发明申请中不再赘述，其够依据本发明的LiDAR系统不构成限制，即在依据本发明的LiDAR系统中，LiDAR装置可以是任意一种旋转式LiDAR装置。
图5示意性地示出了依据本发明的设有LiDAR系统的车辆的侧面示意图。在整个系统中唯一的一个LiDAR装置100被设置于车辆200的内部空间中，而无需置于车顶，由此不会对车辆的空气动力学造成影响，同时能够省去由于车顶的复杂设计导致的成本提升。依据本发明的多根光导纤维300的远端310依据车辆200的构造布置在需要进行探测部位，例如在现有技术中通常会布置附加的LiDAR装置的各个位置。
需要指出的是，虽然在依据本发明的各个视图中，光导纤维300都以单根光导纤维示出，但是应该理解的是，这些显示为光导纤维的部件也可以是光导纤维束，即复数根光导 纤维的集合成的纤维束。整个LiDAR系统的激光射出的方向以及高度都能够通过对光导纤维300或光导纤维束300的远端310的布置角度和高度进行调整来实现。例如，虽然说明书附图中没有示出，各个光导纤维300的远端310可以通过特定的机械连接件与车身的固定位置进行连接，例如特定位置的出线孔，如图5中D1-D9所示。这些光导纤维300的远端310相对于水平面和车身轴线方向的角度均可以进行调整，进而调整进行激光探测的范围、角度等。布置在车身下部的光导纤维300，在例如D1、D3、D4、D5、D6位置可以容易地探测到靠近车体且较为低矮的障碍物，例如台阶、宠物或者儿童，从而进一步以低成本的方式确保车辆和行人的安全。
虽然在图中没有示出，但是应当理解的是，依据本发明的LiDAR系统还可以被设置于其他移动设备上，例如移动式机器人、飞行器、无人机等。
应当理解，虽然本说明书是按照各个实施例描述的，但并非每个实施例仅包含一个独立的技术方案，说明书的这种叙述方式仅仅是为清楚起见，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。
以上所述仅为本发明示意性的具体实施方式，并非用以限定本发明的范围。任何本领域的技术人员，在不脱离本发明的构思和原则的前提下所作的等同变化、修改与结合，均应属于本发明保护的范围。

Claims (11)

  1. 一种检测和测距系统，包括：
    一个光检测和测距(LIDAR)装置，其中所述LIDAR装置(100)的光源能够绕一轴线旋转；
    复数个光导纤维单元(300)，其中
    每个光导纤维单元(300)的近端布置在所述LIDAR装置(100)的周边，使得光源能够入射到所述光纤中；以及
    每个光导纤维单元(300)的远端分别布置在一个移动设备的(200)的预设的探测位置(D)上。
  2. 如权利要求1所述的检测和测距系统，其特征在于：
    所述光导纤维单元(300)为单根光导纤维或者由多跟光导纤维组成的光导纤维束。
  3. 如权利要求1或2所述的检测和测距系统，其特征在于：所述所述光导纤维单元(300)的近端沿所述轴线的径向朝向所述LiDAR装置(100)布置。
  4. 如权利要求1至3中任意一项所述的检测和测距系统，其特征在于：所述光导纤维单元(300)的靠近所述LiDAR装置(100)的近端(320)通过一个夹持装置(10)进行固定。
  5. 如权利要求4所述的检测和测距系统，其特征在于：多个所述光导纤维单元(300)沿所述LiDAR装置(100)的周向等间距地布置。
  6. 如权利要求1至5中任意一项所述的检测和测距系统，其特征在于：所述光导纤维单元(300)的远端设有微型光学镜(380)，用于聚集环境反射的激光束。
  7. 如权利要求1至6中任意一项所述的检测和测距系统，其特征在于：所述光导纤维单元(300)的远离所述LiDAR装置(100)的远端(310)布置于一个移动设备(200)上的预设的探测点，使得激光能够通过所述远端(310)朝周围环境发射。
  8. 如权利要求7中任意一项所述的检测和测距系统，其特征在于：所述光导纤维(300)的远端(310)被设置为能够相对于所述移动设备移动和/或转动。
  9. 如权利要求7至8中任意一项所述的检测和测距系统，其特征在于：所述探测点位于所述移动设备(200)上在行驶时靠近地面的部分。
  10. 一种移动设备(200)，其特征在于，设有依据权利要求1至9中任意一项所述的检测和测距系统。
  11. 如权利要求10所述的一种移动设备(200)，其特征在于，所述移动设备(200)为车 辆或者移动式机器人。
PCT/CN2019/072207 2019-01-17 2019-01-17 柔性激光检测和测距系统以及设有该系统的移动设备 WO2020147077A1 (zh)

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