WO2020135433A1 - 扫描角度调整装置、激光雷达系统、载具及自动校正方法 - Google Patents
扫描角度调整装置、激光雷达系统、载具及自动校正方法 Download PDFInfo
- Publication number
- WO2020135433A1 WO2020135433A1 PCT/CN2019/127995 CN2019127995W WO2020135433A1 WO 2020135433 A1 WO2020135433 A1 WO 2020135433A1 CN 2019127995 W CN2019127995 W CN 2019127995W WO 2020135433 A1 WO2020135433 A1 WO 2020135433A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lidar
- scanning
- angle
- driving mechanism
- drive
- Prior art date
- 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
Links
Images
Classifications
-
- 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
- G01S7/4817—Constructional features, e.g. arrangements of optical elements relating to scanning
-
- 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
- G01S7/497—Means for monitoring or calibrating
Definitions
- the present disclosure relates to environment perception technology, in particular to a scanning angle adjustment device, a laser radar system, a vehicle, and an automatic correction method.
- lidar In complex and unstructured environments, due to the existence of obstacles of different heights and target objects of different sizes, lidar is used in related technologies to achieve the scanning function in three-dimensional space.
- the embodiments of the present disclosure provide a scanning angle adjustment device, a lidar system, a vehicle, and an automatic correction method, which can realize the attitude adjustment of the lidar.
- a scanning angle adjustment device for a lidar including:
- a second direction drive mechanism connected to the lidar, configured to drive the lidar to rotate about a second axis extending in the second direction;
- a first direction drive mechanism connected to the second direction drive mechanism, configured to drive the second direction drive mechanism to rotate about a first axis extending in the first direction;
- the second axis and the first axis are perpendicular to each other.
- the first direction driving mechanism includes:
- a first driving member fixedly arranged on the bracket
- the first transmission member is respectively connected to the output portion of the first driving member and the second direction driving mechanism, and is configured to drive the second direction driving mechanism around The first axis rotates.
- the second direction driving mechanism includes:
- a second drive member connected to the first transmission member
- the second transmission member is connected to the lidar and the second driving member, and is configured to drive the lidar to rotate about the second axis under the driving of the second driving member.
- the first driving member includes a first steering gear
- a power output shaft of the first steering gear is fixedly connected to the first transmission member
- the first steering gear is configured according to its power The rotation position signal of the output shaft realizes feedback control.
- the second driving member includes a second steering gear
- a power output shaft of the second steering gear forms a rotatable connection with the first transmission member
- a casing of the second steering gear Fixedly connected to the lidar, the second steering gear is configured to implement feedback control according to the rotational position signal of its power output shaft.
- the scanning angle adjustment device further includes:
- the controller which is in signal connection with the second direction drive mechanism and the first direction drive mechanism, is configured to send control commands to the second direction drive mechanism and the first direction drive mechanism to implement the laser Radar scanning angle adjustment.
- the controller is configured to cause the first direction drive mechanism to drive the second direction drive mechanism to rotate when the lidar is in an operating state to drive the lidar to swing and cause The second direction driving mechanism drives the lidar to rotate to realize a pitching movement, so that the scanning surface of the lidar maintains a parallel or relative tilt angle with the horizontal plane.
- the scanning angle adjustment device further includes:
- the slope sensing unit is configured to sense the slope of the road surface
- the controller is configured to cause the second direction driving mechanism to drive the lidar to rotate around the second axis by an angle corresponding to the slope, so that the scanning surface of the lidar can maintain The road surface of the slope is parallel.
- a lidar system capable of adjusting the angle of a scanning surface, including: a lidar; and the aforementioned scanning angle adjusting device.
- the lidar is a single-line or multi-line lidar.
- a vehicle including the aforementioned lidar system.
- the vehicle is a walking robot or an automated guided vehicle.
- a laser radar automatic correction method based on the aforementioned laser radar scanning angle adjustment device including:
- a reference object having a first vertical plane and a second vertical plane perpendicular to each other is provided, the first vertical plane and the second vertical plane are both perpendicular to a horizontal plane, and the scanning angle adjusting device is provided at The first vertical plane and the second vertical plane enclose a side at an inner angle of 90°, so that both the first vertical plane and the second vertical plane can be illuminated by the scanning surface of the lidar Arrive
- the data frame corresponding to the roll angle includes multiple first laser point cloud data, and each of the first laser point cloud data includes each scan of the lidar at the current roll angle Orientation/scanning point serial number and corresponding distance information;
- Each data frame corresponding to the pitch angle includes a plurality of second laser point cloud data, and each of the second laser point cloud data includes the serial number and correspondence of each scanning azimuth/scan point of the lidar at the current pitch angle Distance information.
- the lidar automatic correction method further includes:
- the scanning point is not included in the judgment of the shortest distance.
- the attitude of the lidar is adjusted by the first direction driving mechanism and the second direction driving mechanism whose axes are perpendicular to each other, so that when the lidar is affected by the surrounding environment, the scanning range can be adjusted in time by adjusting the attitude, thereby Meet the working requirements of Lidar.
- FIG. 1 is a schematic structural view of some embodiments of a laser radar scanning angle adjustment device according to the present disclosure
- FIG. 2 is a block schematic diagram of some embodiments of a laser radar scanning angle adjustment device according to the present disclosure
- FIG. 3 is a block schematic diagram of other embodiments of a lidar scanning angle adjustment device according to the present disclosure.
- FIG. 4 is a schematic flowchart of some embodiments of an automatic calibration method of lidar according to the present disclosure.
- first”, “second” and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. Similar words such as “include” or “include” mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of covering other elements. “Up”, “down”, “left”, “right”, etc. are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
- a specific device when it is described that a specific device is located between the first device and the second device, there may or may not be an intervening device between the specific device and the first device or the second device.
- the specific device When it is described that a specific device is connected to another device, the specific device may be directly connected to the other device without intervening devices, or may be directly connected to the other device without intervening devices.
- the lidar scanning angle adjustment device includes: a lidar 3, a second direction driving mechanism 20 and a first direction driving mechanism 10.
- the lidar 3 is used to collect distance information of the scanned area.
- the laser radar 3 may use a single-line or multi-line laser radar.
- the second direction drive mechanism 20 is connected to the lidar 3 and is used to drive the lidar 3 to rotate around a second axis 23 extending in the second direction.
- the first direction drive mechanism 10 is connected to the second direction drive mechanism 20 for driving the second direction drive mechanism 20 to rotate about the first axis 14 extending in the first direction.
- the second axis 23 of rotation of the lidar 3 and the first axis 14 of rotation of the second direction drive mechanism are perpendicular to each other.
- the attitude of the lidar is adjusted by the first direction driving mechanism and the second direction driving mechanism whose axes are perpendicular to each other, so that when the lidar is affected by the surrounding environment, the scanning range can be adjusted in time by adjusting the attitude, thereby satisfying the work of the lidar demand.
- the lidar can achieve a greater degree of posture adjustment by adapting to the rotation based on the second axis and the movement of the second direction drive mechanism along with the rotation about the first axis perpendicular to the second axis to adapt to a more complicated external environment.
- the lidar scan angle adjustment device of this embodiment can adjust its attitude as the vehicle tilts in different directions, so that the lidar maintains its The preset scan range. Even if the road is very uneven, the lidar scanning angle adjustment device of this embodiment can drive the second direction drive mechanism and the first direction drive mechanism with a larger rotation angle to meet the attitude adjustment requirements of the lidar.
- the first direction driving mechanism 10 includes: a bracket 11, a first driving member 12 and a first transmission member 13.
- the bracket 11 may be installed on the robot or the vehicle, for example, fixedly disposed on the chassis of the robot or the vehicle, or disposed in front of the front of the vehicle, or disposed on the top of the robot.
- the first driving member 12 is fixedly disposed on the bracket 11.
- the first transmission member 13 is respectively connected to the output portion of the first driving member 12 and the second direction driving mechanism 20, and is used to drive the second direction driving mechanism under the driving of the first driving member 12 20 rotates about the first axis 14.
- the first driving member 12 can realize the left-right swing of the driving mechanism in the second direction, that is, the adjustment of the roll angle.
- the first driving member 12 may include a first steering gear.
- the power output shaft of the first steering gear is fixedly connected to the first transmission member 13.
- the first steering gear can realize the feedback control of the rotation of the first transmission member 12 according to the rotation position signal of its power output shaft.
- the first steering gear may include a motor driver and a rotation mechanism. While driving the rotation of the rotation mechanism, the motor driver also receives a rotation position signal returned by the rotation mechanism, thereby achieving precise angle adjustment through feedback control.
- the first drive member 12 may include a motor or a pneumatic motor, and an angle sensor may be provided on the output shaft of the motor or drive motor or the first transmission member 13 to detect the rotation of the first transmission member 13 Position signal to realize feedback control of motor or drive motor.
- the second direction driving mechanism 20 includes: a second driving member 21 and a second transmission member 22.
- the second driving member 21 is connected to the first transmission member 13.
- the second transmission member 22 is connected to the lidar 3 and the second driving member 21 respectively, for driving the lidar 3 to rotate about the second axis 23 under the driving of the second driving member 21 .
- the second driving member 21 can realize the pitch adjustment of the lidar, that is, the adjustment of the pitch angle.
- the second driving member 21 includes a second steering gear.
- the power output shaft of the second steering gear is rotatably connected to the first transmission member 13, and the casing of the second steering gear is fixedly connected to the lidar 3.
- the distance between the first axis 14 and the second axis 23 can be maintained substantially unchanged, thereby enabling the laser
- the structure of the radar scanning angle adjustment device is more compact and takes up less space.
- the second steering gear can realize feedback control according to the rotation position signal of its power output shaft.
- the second steering gear may include a motor driver and a rotation mechanism.
- the motor driver receives the rotation position signal returned by the rotation mechanism while driving the rotation mechanism to rotate, thereby achieving precise angle adjustment through feedback control.
- the second driving member 21 may include a motor or a pneumatic motor, and an angle sensor may be provided on the output shaft of the motor or driving motor to detect the second driving member 21 relative to the first transmission member 13 Rotate the position signal to realize the feedback control of the motor or drive motor.
- the lidar scanning angle adjustment device further includes a controller 4.
- the controller 4 is in signal connection with the second directional drive mechanism 20 and the first directional drive mechanism 10 and is used to send control commands to the second directional drive mechanism 20 and the first directional drive mechanism 10 to achieve Adjustment of the scanning angle of the lidar 3.
- the controller 4 may be an industrial computer or an embedded motherboard. It can be installed on the lidar 3, the second direction drive mechanism 20 or the first direction drive mechanism 10, or it can be installed adjacent to the lidar 3, the second direction drive mechanism 20 or the first direction drive mechanism 10, for example, on the carrier laser Radar scanning angle adjustment device on the vehicle or robot. In some embodiments, the control unit of the vehicle or the robot itself may also be used as the controller 4.
- the controller 4 can control the second direction drive mechanism 20 and the first direction drive mechanism 10 through internally stored control logic, and can also receive external remote control commands or remote control commands from the control platform to implement the second direction drive mechanism 20 and the control of the first direction drive mechanism 10.
- the attitude of the lidar 3 can be automatically adjusted by configuring the controller. That is, the controller may cause the first direction driving mechanism 10 to drive the second direction driving mechanism 20 to rotate when the lidar 3 is in the working state to drive the lidar 3 to swing and cause the second direction
- the driving mechanism 20 drives the lidar 3 to rotate to realize a pitching movement, so that the scanning surface of the lidar 3 is kept parallel to the horizontal plane. In other embodiments, the scanning surface can also be kept at a set inclination angle with the horizontal plane.
- the lidar 3 when the lidar 3 is in a normal working state and its scanning surface is configured to be parallel to the horizontal plane, when the chassis of the vehicle carrying the lidar scanning angle adjustment device is deflected to the left or right, the vehicle or The sensing element in the lidar scanning angle adjustment device capable of detecting the skew angle can send the skew angle signal to the controller 4, and the controller 4 can immediately issue a control command to the first direction drive mechanism 10 to drive the first direction
- the mechanism 10 drives the second direction drive mechanism 20 to rotate by a corresponding angle around the first axis 14 to compensate the deflection amount of the lidar 3, so that the scanning surface of the lidar 3 can be maintained horizontal.
- the scanning angle adjustment device further includes a slope sensing unit 5, and the slope sensing unit 5 may be signal-connected to the controller 4.
- the gradient sensing unit 5 may be configured to sense the gradient of the road surface and send a skew angle signal indicative of the gradient to the controller 4.
- the gradient sensing unit 5 may use a sensor element, such as a tilt sensor or an acceleration sensor, which is installed on the vehicle or in the lidar scanning angle adjustment device and can detect the skew angle.
- the gradient sensing unit 5 can send a skew angle signal to the controller 4, and the controller 4 can immediately issue a control command to the second direction drive mechanism 20, so that The two-direction driving mechanism 20 drives the lidar 3 to rotate about the second axis 23 by an angle corresponding to the slope to compensate the deflection amount of the lidar 3 so that the scanning surface of the lidar 3 can be maintained horizontal.
- the gradient sensing unit 5 in the robot or vehicle senses the gradient of the road surface, and then causes the second direction drive mechanism 20 to drive the lidar 3 to rotate about the second axis 23 by an angle corresponding to the gradient, thereby causing the laser
- the scanning surface of the radar 3 can be maintained parallel to the road surface of the gradient.
- the controller 4 can synchronously control the first direction drive mechanism 10 and the second direction drive mechanism 20 according to the skew angle signals in the first direction and the second direction, thereby enabling the scanning surface of the lidar 3 Maintain the level at all times, thus ensuring the accuracy and reliability of the lidar 3 scanning results.
- the lidar 3 If the lidar 3 is in a normal working state and its scanning surface is configured at a preset tilt angle to the horizontal plane, the lidar 3 can also be caused to interfere on uneven roads or other environments through the above control process of the controller By adjusting the attitude to maintain the preset tilt angle between its scanning surface and the horizontal plane, thus ensuring the accuracy and reliability of the scanning results of the lidar 3.
- the above-mentioned lidar scanning angle adjustment device can be applied to various devices that require lidar for space scanning, such as robots or automatic guided vehicles.
- the present disclosure also provides a carrier, including any of the foregoing embodiments of the laser radar scanning angle adjustment device.
- the vehicle may be a walking robot or an automatic guided vehicle.
- the automatic guided vehicle includes a small-sized unmanned vehicle or an unmanned vehicle.
- the lidar scanning angle adjustment device is also suitable for vehicles driven by people.
- the lidar scanning angle adjusting device of the embodiment of the present disclosure is applicable to both mechanical rotary lidar and solid-state lidar.
- the solid-state lidar does not use a mechanical rotating mechanism, and its scanning surface is a fan-shaped surface with a specific angle range (for example, 270°).
- the lidar can be calibrated before it works to keep its scanning surface level to meet the needs of the work or improve the measurement accuracy of the lidar. Based on the embodiments of the above-mentioned lidar scanning angle adjustment device, the present disclosure also provides some embodiments of the lidar automatic correction method in the lidar scanning angle adjustment device.
- the lidar automatic correction method includes:
- Step 100 Provide a reference object having a first vertical plane and a second vertical plane that are perpendicular to each other, both the first vertical plane and the second vertical plane are perpendicular to a horizontal plane, and adjust the scanning angle
- the device is arranged on the side where the first vertical plane and the second vertical plane enclose an internal angle of 90°, so that both the first vertical plane and the second vertical plane can be used by the lidar 3 Illuminates the scanning surface of
- Step 200 The first direction driving mechanism 10 drives the second direction driving mechanism 20 to drive the lidar 3 to rotate in the first angle range of the first direction driving mechanism 10, and obtain the first angle range Lidar data frame corresponding to each roll angle;
- Step 300 Determine the roll angle corresponding to the shortest distance with respect to the first vertical plane from the lidar data frame corresponding to each roll angle in the first angle range, and then make the first direction drive mechanism 10 Drive the second direction drive mechanism 20 to the roll angle;
- Step 400 The second direction driving mechanism 20 drives the laser radar 3 to rotate according to the second angle range of the second direction driving mechanism 20, and at the same time acquires the lidar data corresponding to each pitch angle in the second angle range frame;
- Step 500 Determine the pitch angle corresponding to the shortest distance with respect to the second vertical plane from the lidar data frame corresponding to each pitch angle in the second angle range, and drive the second direction driving mechanism 20 The lidar 3 rotates to the pitch angle.
- the reference object may be L-shaped, which may be fixedly or movably disposed on the ground or platform.
- the reference object may also be a fixed or movable construction facility, such as a house.
- the lidar 3 can rotate from the initial roll angle position to the left and right directions by half of the first angle range when turning.
- the second direction drive mechanism 20 is kept without adjusting the pitch angle.
- the data frame corresponding to each roll angle includes a plurality of first laser point cloud data, and each first laser point cloud data includes the number and number of each scanning azimuth/scan point of the scanning surface of the lidar 3 at the current roll angle Corresponding distance information.
- step 300 when determining the roll angle corresponding to the shortest distance, the interference of the abnormal point may be excluded. Specifically, it can be judged whether the distance data of each scanning point is close to its neighboring points. If it is not close, it can be judged that the scanning point is an abnormal point, so that it is not included in the judgment of the shortest distance. Judging whether the distance data is close can be determined by judging whether the difference of the distance data exceeds a preset threshold.
- the lidar 3 can be rotated by half of the second angle range from the initial pitch angle position to the up and down directions when turning.
- the first direction drive mechanism 10 is kept without adjusting the roll angle.
- the data frame corresponding to each pitch angle includes multiple second laser point cloud data, and each second laser point cloud data includes the number of each scanning azimuth/scanning point of the scanning surface of the lidar 3 at the current pitch angle and the corresponding Distance information.
- step 500 when determining the pitch angle corresponding to the shortest distance, the interference of the abnormal point may be excluded. Specifically, it can be judged whether the distance data of each scanning point is close to its neighboring points. If it is not close, it can be judged that the scanning point is an abnormal point, so that it is not included in the judgment of the shortest distance. Judging whether the distance data is close can be determined by judging whether the difference of the distance data exceeds a preset threshold.
- steps 200-300 can be interchanged with steps 400-500.
- the first angle range and the second angle range may be input into the controller before the correction operation, or may be acquired during the correction process. That is, in some embodiments, the lidar automatic correction method may further include acquiring the first angular range of the first directional driving mechanism 10 and the second angular range of the second directional driving mechanism 20.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Traffic Control Systems (AREA)
Abstract
一种扫描角度调整装置、激光雷达系统、载具及自动校正方法。扫描角度调整装置包括:第二方向驱动机构(20),与激光雷达(3)连接,用于驱动激光雷达(3)绕沿第二方向延伸的第二轴线(23)转动;和第一方向驱动机构(10),与第二方向驱动机构(20)连接,用于驱动第二方向驱动机构(20)绕第一方向延伸的第一轴线(14)转动;其中,第二轴线(23)与第一轴线(14)相互垂直。
Description
相关申请的交叉引用
本公开是以CN申请号为201811633095.5,申请日为2018年12月29日的申请为基础,并主张其优先权,该CN申请的公开内容在此作为整体引入本公开中。
本公开涉及环境感知技术,尤其涉及一种扫描角度调整装置、激光雷达系统、载具及自动校正方法。
随着机器人技术的不断发展,服务机器人已在环境监测、公共安全、救灾救援、反恐防爆等领域实现了应用。在复杂非结构化的环境中,服务机器人需要获取外部环境的三维空间数据,以完成机器人位姿的估计、不同高度障碍物的识别及避障、运动轨迹的自动规划、目标物体的识别及检测等各项任务。
在复杂非结构化的环境中,由于存在不同高度的障碍物和不同大小的目标物体,在相关技术中采用激光雷达实现三维空间的扫描功能。
发明内容
经发明人研究发现,相关技术中的激光雷达在受到路面的平整程度以及空间环境等因素的影响时,其自身姿态不能及时得以调整,从而制约了其扫描范围以及获得数据的准确程度。
有鉴于此,本公开实施例提供一种扫描角度调整装置、激光雷达系统、载具及自动校正方法,能够实现激光雷达的姿态调整。
在本公开的一个方面,提供一种激光雷达的扫描角度调整装置,包括:
第二方向驱动机构,与激光雷达连接,被配置为驱动所述激光雷达绕沿第二方向延伸的第二轴线转动;和
第一方向驱动机构,与所述第二方向驱动机构连接,被配置为驱动所述第二方向驱动机构绕第一方向延伸的第一轴线转动;
其中,所述第二轴线与所述第一轴线相互垂直。
在一些实施例中,所述第一方向驱动机构包括:
支架;
第一驱动件,固定设置在所述支架上;和
第一传动件,分别与所述第一驱动件的输出部和所述第二方向驱动机构连接,被配置为在所述第一驱动件的驱动下,带动所述第二方向驱动机构绕所述第一轴线转动。
在一些实施例中,所述第二方向驱动机构包括:
第二驱动件,与所述第一传动件连接;和
第二传动件,与所述激光雷达和所述第二驱动件连接,被配置为在所述第二驱动件的驱动下,带动所述激光雷达绕所述第二轴线转动。
在一些实施例中,所述第一驱动件包括第一舵机,所述第一舵机的动力输出轴与所述第一传动件固定连接,所述第一舵机被配置为根据其动力输出轴的转动位置信号实现反馈控制。
在一些实施例中,所述第二驱动件包括第二舵机,所述第二舵机的动力输出轴与所述第一传动件形成可转动的连接,所述第二舵机的机壳与所述激光雷达固定连接,所述第二舵机被配置为根据其动力输出轴的转动位置信号实现反馈控制。
在一些实施例中,所述扫描角度调整装置还包括:
控制器,与所述第二方向驱动机构和所述第一方向驱动机构信号连接,被配置为向所述第二方向驱动机构和所述第一方向驱动机构发送控制指令,以实现所述激光雷达的扫描角度的调整。
在一些实施例中,所述控制器被配置为在所述激光雷达处于工作状态时,使所述第一方向驱动机构驱动所述第二方向驱动机构转动来带动所述激光雷达摆动,并使所述第二方向驱动机构驱动所述激光雷达转动来实现俯仰运动,以使所述激光雷达的扫描面保持与水平面的平行或相对倾斜角。
在一些实施例中,所述扫描角度调整装置还包括:
坡度感测单元,被配置为感测路面的坡度;
其中,所述控制器被配置为使所述第二方向驱动机构驱动所述激光雷达绕所述第二轴线转动与所述坡度对应的角度,从而使所述激光雷达的扫描面能够维持与所述坡度的路面平行。
在本公开的一个方面,提供一种可调整扫描面角度的激光雷达系统,包括:激光 雷达;和前述的扫描角度调整装置。
在一些实施例中,所述激光雷达为单线式或多线式激光雷达。
在本公开的一个方面,提供一种载具,包括前述的激光雷达系统。
在一些实施例中,所述载具为可行走的机器人或自动导引车辆。
在本公开的一个方面,提供一种基于前述的激光雷达的扫描角度调整装置的激光雷达自动校正方法,包括:
提供具有相互垂直的第一竖直面和第二竖直面的参照物体,所述第一竖直面和所述第二竖直面均与水平面垂直,并将所述扫描角度调整装置设置在所述第一竖直面和所述第二竖直面围成90°内角的一侧,以使所述第一竖直面和所述第二竖直面均能够被激光雷达的扫描面照射到;
使第一方向驱动机构通过驱动第二方向驱动机构来带动所述激光雷达在所述第一方向驱动机构的第一角度范围转动,同时获取所述第一角度范围内各个滚转角度所对应的激光雷达数据帧;
从所述第一角度范围内各个滚转角度所对应的激光雷达数据帧确定相对于所述第一竖直面的最短距离对应的滚转角度,然后使所述第一方向驱动机构带动所述第二方向驱动机构转动到所述滚转角度;
使所述第二方向驱动机构驱动激光雷达按照所述第二方向驱动机构的第二角度范围转动,同时获取所述第二角度范围内各个俯仰角度所对应的激光雷达数据帧;
从所述第二角度范围内各个俯仰角度所对应的激光雷达数据帧确定相对于所述第二竖直面的最短距离对应的俯仰角度,并使所述第二方向驱动机构驱动所述激光雷达转动到所述俯仰角度。
在一些实施例中,所述滚转角度对应的数据帧均包括多个第一激光点云数据,每个所述第一激光点云数据包括所述激光雷达在当前滚转角度下的各个扫描方位/扫描点的序号和对应的距离信息;
所述俯仰角度对应的数据帧均包括多个第二激光点云数据,每个所述第二激光点云数据包括所述激光雷达在当前俯仰角度下的各个扫描方位/扫描点的序号和对应的距离信息。
在一些实施例中,所述激光雷达自动校正方法还包括:
根据所述扫描点与其相邻点的距离数据判断所述扫描点是否为异常点;
如果确定所述扫描点为异常点,则所述扫描点不被纳入最短距离的判断。
因此,根据本公开实施例,通过轴线相互垂直的第一方向驱动机构和第二方向驱动机构来调整激光雷达的姿态,使得激光雷达受到周围环境影响时能够及时通过调整姿态来调整扫描范围,从而满足激光雷达的工作需求。
构成说明书的一部分的附图描述了本公开的实施例,并且连同说明书一起用于解释本公开的原理。
参照附图,根据下面的详细描述,可以更加清楚地理解本公开,其中:
图1是根据本公开激光雷达扫描角度调整装置的一些实施例的结构示意图;
图2是根据本公开激光雷达扫描角度调整装置的一些实施例的方框示意图;
图3是根据本公开激光雷达扫描角度调整装置的另一些实施例的方框示意图;
图4是根据本公开激光雷达自动校正方法的一些实施例的流程示意图。
应当明白,附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。此外,相同或类似的参考标号表示相同或类似的构件。
现在将参照附图来详细描述本公开的各种示例性实施例。对示例性实施例的描述仅仅是说明性的,决不作为对本公开及其应用或使用的任何限制。本公开可以以许多不同的形式实现,不限于这里所述的实施例。提供这些实施例是为了使本公开透彻且完整,并且向本领域技术人员充分表达本公开的范围。应注意到:除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值应被解释为仅仅是示例性的,而不是作为限制。
本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的部分。“包括”或者“包含”等类似的词语意指在该词前的要素涵盖在该词后列举的要素,并不排除也涵盖其他要素的可能。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。
在本公开中,当描述到特定器件位于第一器件和第二器件之间时,在该特定器件与第一器件或第二器件之间可以存在居间器件,也可以不存在居间器件。当描述到特定器件连接其它器件时,该特定器件可以与所述其它器件直接连接而不具有居间器 件,也可以不与所述其它器件直接连接而具有居间器件。
本公开使用的所有术语(包括技术术语或者科学术语)与本公开所属领域的普通技术人员理解的含义相同,除非另外特别定义。还应当理解,在诸如通用字典中定义的术语应当被解释为具有与它们在相关技术的上下文中的含义相一致的含义,而不应用理想化或极度形式化的意义来解释,除非这里明确地这样定义。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论,但在适当情况下,所述技术、方法和设备应当被视为说明书的一部分。
如图1所示,是根据本公开激光雷达扫描角度调整装置的一些实施例的结构示意图。参考图1,在一些实施例中,激光雷达扫描角度调整装置包括:激光雷达3、第二方向驱动机构20和第一方向驱动机构10。激光雷达3用于采集被扫描区域的距离信息。激光雷达3可采用单线式或多线式激光雷达。第二方向驱动机构20与激光雷达3连接,用于驱动所述激光雷达3绕沿第二方向延伸的第二轴线23转动。第一方向驱动机构10与所述第二方向驱动机构20连接,用于驱动所述第二方向驱动机构20绕第一方向延伸的第一轴线14转动。激光雷达3转动的第二轴线23与第二方向驱动机构转动的第一轴线14相互垂直。
本实施例通过轴线相互垂直的第一方向驱动机构和第二方向驱动机构来调整激光雷达的姿态,使得激光雷达受到周围环境影响时能够及时通过调整姿态来调整扫描范围,从而满足激光雷达的工作需求。激光雷达通过基于第二轴线的转动以及随着绕与第二轴线垂直的第一轴线转动的第二方向驱动机构运动,能够实现较大程度的姿态调整,以适应更加复杂的外部环境。
举例来说,当载有本实施例的激光雷达扫描角度调整装置的车辆或机器人在不平的道路上运行时,激光雷达能够随着车辆在不同方向的倾斜而调整姿态,以使得激光雷达保持其预设的扫描范围。即便道路非常不平整,本实施例的激光雷达扫描角度调整装置也能通过第二方向驱动机构和第一方向驱动机构以较大转动角度的驱动来满足激光雷达的姿态调整需求。
参考图1,在一些实施例中,第一方向驱动机构10包括:支架11、第一驱动件12和第一传动件13。支架11可安装在机器人或者车辆上,例如固定设置在机器人或车辆的底盘上,或者设置在车头前方,或者设置在机器人的顶部等。第一驱动件12固定设置在所述支架11上。第一传动件13分别与所述第一驱动件12的输出部和所述第二方向驱动机构20连接,用于在所述第一驱动件12的驱动下,带动所述第二方 向驱动机构20绕所述第一轴线14转动。这里第一驱动件12可实现第二方向驱动机构的左右摇摆,即滚转角(roll angle)的调节。
在一些实施例中,第一驱动件12可包括第一舵机。第一舵机的动力输出轴与所述第一传动件13固定连接。第一舵机可根据其动力输出轴的转动位置信号实现其对第一传动件12转动的反馈控制。第一舵机可包括电机驱动器和旋转机构,电机驱动器在驱动旋转机构转动的同时,还接收旋转机构返回的转动位置信号,从而通过反馈控制实现精准的角度调整。在另一些实施例中,第一驱动件12可包括电机或气动马达,另外还可以在电机或驱动马达的输出轴或者第一传动件13上设置角度传感器,以便检测第一传动件13的转动位置信号,从而实现电机或驱动马达的反馈控制。
参考图1,在一些实施例中,第二方向驱动机构20包括:第二驱动件21和第二传动件22。第二驱动件21与所述第一传动件13连接。第二传动件22分别与所述激光雷达3和所述第二驱动件21连接,用于在所述第二驱动件21的驱动下,带动所述激光雷达3绕所述第二轴线23转动。这里第二驱动件21可实现激光雷达的俯仰调节,即俯仰角(pitch angle)的调节。
在一些实施例中,第二驱动件21包括第二舵机。第二舵机的动力输出轴与所述第一传动件13形成可转动的连接,所述第二舵机的机壳与所述激光雷达3固定连接。通过将第二舵机的机壳与激光雷达3固定,并将动力输出轴与第一传动件13转动连接,可使得第一轴线14与第二轴线23的间距基本维持不变,从而使激光雷达扫描角度调整装置的结构更加紧凑,占用空间更小。
第二舵机可根据其动力输出轴的转动位置信号实现反馈控制。第二舵机可包括电机驱动器和旋转机构,电机驱动器在驱动旋转机构转动的同时,还接收旋转机构返回的转动位置信号,从而通过反馈控制实现精准的角度调整。在另一些实施例中,第二驱动件21可包括电机或气动马达,另外还可以在电机或驱动马达的输出轴上设置角度传感器,以便检测第二驱动件21相对于第一传动件13的转动位置信号,从而实现电机或驱动马达的反馈控制。
如图2所示,是根据本公开激光雷达扫描角度调整装置的一些实施例的方框示意图。参考图2,在一些实施例中,激光雷达扫描角度调整装置还包括控制器4。控制器4与所述第二方向驱动机构20和所述第一方向驱动机构10信号连接,用于向所述第二方向驱动机构20和所述第一方向驱动机构10发送控制指令,以实现所述激光雷达3的扫描角度的调整。
控制器4可以为工控机或者嵌入式主板。其可设置在激光雷达3、第二方向驱动机构20或第一方向驱动机构10上,也可以临近激光雷达3、第二方向驱动机构20或第一方向驱动机构10设置,例如设置在承载激光雷达扫描角度调整装置的车辆或机器人上。在一些实施例中,也可采用车辆或机器人自身的控制单元作为控制器4。控制器4可通过内部存储的控制逻辑实现对第二方向驱动机构20和第一方向驱动机构10的控制,也可以接收外部的遥控指令或者来自控制平台的远程控制指令实现对第二方向驱动机构20和第一方向驱动机构10的控制。
为了使激光雷达3在工作过程中能够保持其扫描的稳定性,可以通过对控制器的配置实现激光雷达3姿态的自动调整。即控制器可在所述激光雷达3处于工作状态时,使所述第一方向驱动机构10驱动所述第二方向驱动机构20转动来带动所述激光雷达3摆动,并使所述第二方向驱动机构20驱动所述激光雷达3转动来实现俯仰运动,以使所述激光雷达3的扫描面保持与水平面的平行。在另一些实施例中,也可以使扫描面保持在与水平面呈设定的倾斜角。
参考图1,例如在激光雷达3处于正常工作状态时,其扫描面被配置为与水平面平行,则当承载激光雷达扫描角度调整装置的车辆底盘向左侧或右侧偏斜时,车辆上或者激光雷达扫描角度调整装置中能够检测偏斜角度的传感元件可将偏斜角度信号发送给控制器4,控制器4可即时地向第一方向驱动机构10发出控制指令,使第一方向驱动机构10驱动第二方向驱动机构20绕第一轴线14转动相应的角度,来补偿激光雷达3的偏斜量,从而使激光雷达3的扫描面能够维持水平。
参考图3,在一些实施例中,扫描角度调整装置还包括坡度感测单元5,坡度感测单元5可与控制器4信号连接。坡度感测单元5可被配置为感测路面的坡度,并将表征坡度的偏斜角度信号发送给控制器4。坡度感测单元5可采用设置在车辆上或者激光雷达扫描角度调整装置中能够检测偏斜角度的传感元件,例如倾角传感器或加速度传感器。
当车辆底盘行驶到上坡或下坡的路面时,坡度感测单元5可将偏斜角度信号发送给控制器4,控制器4可即时地向第二方向驱动机构20发出控制指令,使第二方向驱动机构20驱动激光雷达3绕第二轴线23转动与坡度对应的角度,来补偿激光雷达3的偏斜量,从而使激光雷达3的扫描面能够维持水平。在另一些实施例中,机器人或车辆中的坡度感测单元5感测路面的坡度,然后使第二方向驱动机构20驱动激光雷达3绕第二轴线23转动与坡度对应的角度,从而使激光雷达3的扫描面能够维持与 该坡度的路面平行。
对于更加复杂的路边情况,控制器4可根据在第一方向和第二方向偏斜角度信号同步控制第一方向驱动机构10和第二方向驱动机构20,从而使激光雷达3的扫描面能够始终维持水平,进而确保了激光雷达3扫描结果的准确性和可靠性。
如果激光雷达3处于正常工作状态时,其扫描面被配置为与水平面呈预设倾斜角,则也同样可通过控制器的上述控制过程使激光雷达3在不平整的路面上或其他环境干扰时通过调整姿态来维持其扫描面与水平面之间的预设倾斜角,从而确保了激光雷达3扫描结果的准确性和可靠性。
上述激光雷达扫描角度调整装置可适用于各种需要使用激光雷达进行空间扫描的设备,例如机器人或自动导引车辆等。相应的,本公开还提供了一种载具,包括前述任一种激光雷达扫描角度调整装置的实施例。该载具可以为可行走的机器人或自动导引车辆,自动导引车辆包括尺寸较小的无人车,也可以包括无人驾驶汽车等。当然,激光雷达扫描角度调整装置也适用于由人驾驶的车辆。
本公开实施例的激光雷达扫描角度调整装置既适用于机械旋转式激光雷达,也适用于固态激光雷达。所述固态激光雷达不使用机械旋转机构,其扫描面为特定角度范围(例如270°)的扇形面。
考虑到激光雷达每次在不同的环境的路面上使用时,不同的路面的倾斜度可能是不一致的。此外,当激光雷达一段时间不用时,其角度也可能基于触碰等原因而发生变化,因此激光雷达在上电之后的扫描面很可能不是水平面,而激光雷达的扫描面保持水平又是大多数工作任务经常需要的。基于上述原因,可在激光雷达工作之前对其进行校正,使其扫描面保持水平,以满足工作需要或提高激光雷达的测量精度。而基于上述激光雷达扫描角度调整装置的各实施例,本公开还提供了激光雷达扫描角度调整装置中激光雷达自动校正的方法的一些实施例。
如图4所示,是根据本公开激光雷达自动校正方法的一些实施例的流程示意图。结合图1所示的激光雷达扫描角度调整装置,并参考图4,在一些实施例中,激光雷达自动校正方法包括:
步骤100、提供具有相互垂直的第一竖直面和第二竖直面的参照物体,所述第一竖直面和所述第二竖直面均与水平面垂直,并将所述扫描角度调整装置设置在所述第一竖直面和所述第二竖直面围成90°内角的一侧,以使所述第一竖直面和所述第二竖直面均能够被激光雷达3的扫描面照射到;
步骤200、使第一方向驱动机构10通过驱动第二方向驱动机构20来带动所述激光雷达3在所述第一方向驱动机构10的第一角度范围转动,同时获取所述第一角度范围内各个滚转角度所对应的激光雷达数据帧;
步骤300、从所述第一角度范围内各个滚转角度所对应的激光雷达数据帧确定相对于所述第一竖直面的最短距离对应的滚转角度,然后使所述第一方向驱动机构10带动所述第二方向驱动机构20转动到所述滚转角度;
步骤400、使所述第二方向驱动机构20驱动激光雷达3按照所述第二方向驱动机构20的第二角度范围转动,同时获取所述第二角度范围内各个俯仰角度所对应的激光雷达数据帧;
步骤500、从所述第二角度范围内各个俯仰角度所对应的激光雷达数据帧确定相对于所述第二竖直面的最短距离对应的俯仰角度,并使所述第二方向驱动机构20驱动所述激光雷达3转动到所述俯仰角度。
在步骤100中,参照物体可呈L型,其可被固定地或可移动的设置在地面或平台上。参照物体也可以为固定或可移动的建筑设施,例如房屋等。
在步骤200中,激光雷达3在转动时可从初始滚转角度位置向左右方向各旋转第一角度范围的一半。并且,在激光雷达3在第一角度范围内转动时,保持第二方向驱动机构20不做俯仰角的调节。各个滚转角度对应的数据帧均包括多个第一激光点云数据,每个第一激光点云数据包括激光雷达3的扫描面在当前滚转角度下的各个扫描方位/扫描点的序号和对应的距离信息。
在步骤300中,在确定最短距离对应的滚转角度时,可排除异常点的干扰。具体来说,可判断每个扫描点与其邻近点的距离数据是否接近,如果不接近,则可判断该扫描点为异常点,从而不将其纳入最短距离的判断。判断距离数据是否相近可通过判断距离数据的差值是否超过预设阈值进行确定。
在步骤400中,激光雷达3在转动时可从初始俯仰角度位置向上下方向各旋转第二角度范围的一半。并且,在激光雷达3在第二角度范围内转动时,保持第一方向驱动机构10不做滚转角的调节。各个俯仰角度对应的数据帧均包括多个第二激光点云数据,每个第二激光点云数据包括激光雷达3的扫描面在当前俯仰角度下的各个扫描方位/扫描点的序号和对应的距离信息。
在步骤500中,在确定最短距离对应的俯仰角度时,可排除异常点的干扰。具体来说,可判断每个扫描点与其邻近点的距离数据是否接近,如果不接近,则可判断该 扫描点为异常点,从而不将其纳入最短距离的判断。判断距离数据是否相近可通过判断距离数据的差值是否超过预设阈值进行确定。
在上述实施例中,步骤200-300可以与步骤400-500互换。在上述步骤200和步骤400中,第一角度范围和第二角度范围可在校正操作之前预先输入控制器,也可以在校正过程中获取。即在一些实施例中,激光雷达自动校正方法还可以包括获取所述第一方向驱动机构10的第一角度范围和所述第二方向驱动机构20的第二角度范围。
本说明书中多个实施例采用递进的方式描述,各实施例的重点有所不同,而各个实施例之间相同或相似的部分相互参见即可。对于方法实施例而言,由于其整体以及涉及的步骤与装置实施例中的内容存在对应关系,因此描述的比较简单,相关之处参见装置实施例的部分说明即可。
至此,已经详细描述了本公开的各实施例。为了避免遮蔽本公开的构思,没有描述本领域所公知的一些细节。本领域技术人员根据上面的描述,完全可以明白如何实施这里公开的技术方案。
虽然已经通过示例对本公开的一些特定实施例进行了详细说明,但是本领域的技术人员应该理解,以上示例仅是为了进行说明,而不是为了限制本公开的范围。本领域的技术人员应该理解,可在不脱离本公开的范围和精神的情况下,对以上实施例进行修改或者对部分技术特征进行等同替换。本公开的范围由所附权利要求来限定。
Claims (16)
- 一种激光雷达的扫描角度调整装置,包括:第二方向驱动机构(20),与激光雷达(3)连接,被配置为驱动所述激光雷达(3)绕沿第二方向延伸的第二轴线(23)转动;和第一方向驱动机构(10),与所述第二方向驱动机构(20)连接,被配置为驱动所述第二方向驱动机构(20)绕第一方向延伸的第一轴线(14)转动;其中,所述第二轴线(23)与所述第一轴线(14)相互垂直。
- 根据权利要求1所述的扫描角度调整装置,其中所述第一方向驱动机构(10)包括:支架(11);第一驱动件(12),固定设置在所述支架(11)上;和第一传动件(13),分别与所述第一驱动件(12)的输出部和所述第二方向驱动机构(20)连接,被配置为在所述第一驱动件(12)的驱动下,带动所述第二方向驱动机构(20)绕所述第一轴线(14)转动。
- 根据权利要求2所述的扫描角度调整装置,其中所述第二方向驱动机构(20)包括:第二驱动件(21),与所述第一传动件(13)连接;和第二传动件(22),与所述激光雷达(3)和所述第二驱动件(21)连接,被配置为在所述第二驱动件(21)的驱动下,带动所述激光雷达(3)绕所述第二轴线(23)转动。
- 根据权利要求2所述的扫描角度调整装置,其中所述第一驱动件(12)包括第一舵机,所述第一舵机的动力输出轴与所述第一传动件(13)固定连接,所述第一舵机被配置为根据其动力输出轴的转动位置信号实现反馈控制。
- 根据权利要求3所述的扫描角度调整装置,其中所述第二驱动件(21)包括第二舵机,所述第二舵机的动力输出轴与所述第一传动件(13)形成可转动的连接,所述第二舵机的机壳与所述激光雷达(3)固定连接,所述第二舵机被配置为根据其动力输出轴的转动位置信号实现反馈控制。
- 根据权利要求1所述的扫描角度调整装置,还包括:控制器(4),与所述第二方向驱动机构(20)和所述第一方向驱动机构(10) 信号连接,被配置为向所述第二方向驱动机构(20)和所述第一方向驱动机构(10)发送控制指令,以实现所述激光雷达(3)的扫描角度的调整。
- 根据权利要求6所述的扫描角度调整装置,其中所述控制器被配置为在所述激光雷达(3)处于工作状态时,使所述第一方向驱动机构(10)驱动所述第二方向驱动机构(20)转动来带动所述激光雷达(3)摆动,并使所述第二方向驱动机构(20)驱动所述激光雷达(3)转动来实现俯仰运动,以使所述激光雷达(3)的扫描面保持与水平面的平行或相对倾斜角。
- 根据权利要求6所述的扫描角度调整装置,还包括:坡度感测单元(5),被配置为感测路面的坡度;其中,所述控制器被配置为使所述第二方向驱动机构(20)驱动所述激光雷达(3)绕所述第二轴线(23)转动与所述坡度对应的角度,从而使所述激光雷达(3)的扫描面能够维持与所述坡度的路面平行。
- 一种可调整扫描面角度的激光雷达系统,包括:激光雷达(3);和权利要求1~8任一所述的扫描角度调整装置。
- 根据权利要求9所述的激光雷达系统,其中所述激光雷达(3)为单线式或多线式激光雷达。
- 一种载具,包括:权利要求9或10所述的激光雷达系统。
- 根据权利要求11所述的载具,其特征在于,所述载具为可行走的机器人或自动导引车辆。
- 一种基于权利要求1~8任一所述的激光雷达的扫描角度调整装置的激光雷达自动校正方法,包括:提供具有相互垂直的第一竖直面和第二竖直面的参照物体,所述第一竖直面和所述第二竖直面均与水平面垂直,并将所述扫描角度调整装置设置在所述第一竖直面和所述第二竖直面围成90°内角的一侧,以使所述第一竖直面和所述第二竖直面均能够被激光雷达(3)的扫描面照射到;使第一方向驱动机构(10)通过驱动第二方向驱动机构(20)来带动所述激光雷达(3)在所述第一方向驱动机构(10)的第一角度范围转动,同时获取所述第一角度范围内各个滚转角度所对应的激光雷达数据帧;从所述第一角度范围内各个滚转角度所对应的激光雷达数据帧确定相对于所述 第一竖直面的最短距离对应的滚转角度,然后使所述第一方向驱动机构(10)带动所述第二方向驱动机构(20)转动到所述滚转角度;使所述第二方向驱动机构(20)驱动激光雷达(3)按照所述第二方向驱动机构(20)的第二角度范围转动,同时获取所述第二角度范围内各个俯仰角度所对应的激光雷达数据帧;从所述第二角度范围内各个俯仰角度所对应的激光雷达数据帧确定相对于所述第二竖直面的最短距离对应的俯仰角度,并使所述第二方向驱动机构(20)驱动所述激光雷达(3)转动到所述俯仰角度。
- 根据权利要求13所述的激光雷达自动校正方法,还包括:获取所述第一方向驱动机构(10)的第一角度范围和所述第二方向驱动机构(20)的第二角度范围。
- 根据权利要求13所述的激光雷达自动校正方法,其中所述滚转角度对应的数据帧均包括多个第一激光点云数据,每个所述第一激光点云数据包括所述激光雷达(3)在当前滚转角度下的各个扫描方位/扫描点的序号和对应的距离信息;所述俯仰角度对应的数据帧均包括多个第二激光点云数据,每个所述第二激光点云数据包括所述激光雷达(3)在当前俯仰角度下的各个扫描方位/扫描点的序号和对应的距离信息。
- 根据权利要求15所述的激光雷达自动校正方法,还包括:根据所述扫描点与其相邻点的距离数据判断所述扫描点是否为异常点;如果确定所述扫描点为异常点,则所述扫描点不被纳入最短距离的判断。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811633095.5A CN109471088A (zh) | 2018-12-29 | 2018-12-29 | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 |
| CN201811633095.5 | 2018-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020135433A1 true WO2020135433A1 (zh) | 2020-07-02 |
Family
ID=65676857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2019/127995 Ceased WO2020135433A1 (zh) | 2018-12-29 | 2019-12-24 | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN109471088A (zh) |
| WO (1) | WO2020135433A1 (zh) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415145A (zh) * | 2021-11-30 | 2022-04-29 | 宁波傲视智绘光电科技有限公司 | 一种用于激光雷达窗口片粘接的自动化设备 |
| CN115561733A (zh) * | 2022-09-29 | 2023-01-03 | 东风悦享科技有限公司 | 一种可自动调节的机械激光雷达固定装置及方法 |
| CN118962632A (zh) * | 2024-10-14 | 2024-11-15 | 宁波舜宇车载光学技术有限公司 | 雷达数据处理装置、激光雷达以及数据传输方法 |
| CN120332603A (zh) * | 2025-04-16 | 2025-07-18 | 哈尔滨工业大学 | 一种外转子电机驱动的t型转台 |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471088A (zh) * | 2018-12-29 | 2019-03-15 | 同方威视技术股份有限公司 | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 |
| CN110001536B (zh) * | 2019-03-29 | 2024-05-14 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | 一种车载传感器调整座及车载传感器装置 |
| CN112394359A (zh) * | 2019-08-15 | 2021-02-23 | 北醒(北京)光子科技有限公司 | 一种激光雷达及其一维扫描方法 |
| CN112799092B (zh) * | 2019-11-14 | 2025-04-22 | 珠海丽亭智能科技有限公司 | 一种用于车辆扫描的激光雷达扫描柱 |
| CN110824501B (zh) * | 2019-11-25 | 2022-05-27 | 陕西理工大学 | 一种机载激光雷达光学扫描装置 |
| CN111136686B (zh) * | 2019-12-25 | 2021-01-19 | 西安交通大学 | 一种用于表面涂层厚度检测末端执行器的姿态调整装置 |
| CN111239709A (zh) * | 2020-03-06 | 2020-06-05 | 多伦科技股份有限公司 | 用于摩托车考试的探测装置 |
| CN113495282B (zh) * | 2020-04-03 | 2025-01-14 | 北醒(北京)光子科技有限公司 | 一种双舵机扫描激光雷达及基于该雷达的体积测量方法 |
| CN111625024B (zh) * | 2020-04-28 | 2022-02-11 | 东风汽车集团有限公司 | 车载毫米波雷达的角度调整方法、bcm控制器及系统 |
| CN111983616A (zh) * | 2020-07-31 | 2020-11-24 | 嘉善新石器智牛科技有限公司 | 无人车雷达的自动调节系统、方法以及无人车 |
| CN111854649A (zh) * | 2020-08-31 | 2020-10-30 | 中机科(北京)车辆检测工程研究院有限公司 | 车辆通过性检测装置 |
| US12394085B2 (en) * | 2020-11-16 | 2025-08-19 | Waymo Llc | Long range distance estimation using reference objects |
| CN112526530B (zh) * | 2020-11-17 | 2024-04-16 | 国电电力内蒙古新能源开发有限公司 | 一种无人机避障方法及无人机 |
| CN112738438B (zh) * | 2020-12-18 | 2024-01-19 | Tcl王牌电器(惠州)有限公司 | 驱动装置及显示设备 |
| CN112782720A (zh) * | 2020-12-24 | 2021-05-11 | 东风商用车有限公司 | 一种汽车激光雷达探测装置及其调控方法 |
| CN112987011A (zh) * | 2021-02-05 | 2021-06-18 | 浙江欣奕华智能科技有限公司 | 激光雷达的确定方法及调整设备 |
| CN113138397B (zh) * | 2021-06-01 | 2023-12-26 | 中国计量大学 | 一种无人机避障装置及无人机 |
| CN114056243B (zh) * | 2021-11-15 | 2024-03-22 | 天津津航技术物理研究所 | 一种光电探测设备的推出装置 |
| CN114322828B (zh) * | 2021-12-15 | 2024-12-03 | 云南昆钢电子信息科技有限公司 | 一种基于激光雷达扫描角度切换的点云采样系统及方法 |
| CN115932785A (zh) * | 2022-10-08 | 2023-04-07 | 柳州五菱新能源汽车有限公司 | 一种激光雷达调角装置及自动驾驶控制方法 |
| CN115755032A (zh) * | 2022-10-28 | 2023-03-07 | 联想(北京)有限公司 | 一种汽车座舱内的雷达监测方法及雷达移动装置 |
| CN115825871A (zh) * | 2022-11-23 | 2023-03-21 | 上海海拉电子有限公司 | 一种雷达扫描系统及扫描方法 |
| CN116794637B (zh) * | 2023-04-23 | 2026-05-12 | 合肥工业大学 | 一种激光雷达、相机、imu联合标定装置及方法 |
| CN121477225A (zh) * | 2025-12-05 | 2026-02-06 | 江苏京芯光电科技有限公司 | 一种基于激光雷达控制的升降双视角lds系统 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8368874B2 (en) * | 2009-01-29 | 2013-02-05 | Sanyo Electric Co., Ltd. | Beam irradiation device and laser radar system |
| CN104793619A (zh) * | 2015-04-17 | 2015-07-22 | 上海交通大学 | 基于摆动单线激光雷达的仓库巷道自动引导车导航装置 |
| CN105891839A (zh) * | 2016-04-02 | 2016-08-24 | 上海大学 | 一种具有彩色点云获取能力的全向激光雷达装置 |
| CN106154285A (zh) * | 2016-06-20 | 2016-11-23 | 上海交通大学 | 一种基于摆动激光雷达的可变视野三维重建装置 |
| CN107290734A (zh) * | 2017-08-22 | 2017-10-24 | 北京航空航天大学 | 一种基于自制地基激光雷达垂直度误差的点云误差校正方法 |
| CN108776344A (zh) * | 2018-05-03 | 2018-11-09 | 南京理工大学 | 一种低成本可斜射激光雷达 |
| CN109471088A (zh) * | 2018-12-29 | 2019-03-15 | 同方威视技术股份有限公司 | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000137069A (ja) * | 1998-10-30 | 2000-05-16 | Furukawa Electric Co Ltd:The | 車両用レーダ装置の軸調整装置 |
| CN102141607B (zh) * | 2011-03-23 | 2013-03-06 | 中国兵器工业第二〇六研究所 | 雷达数字平台调平装置和调平方法 |
| KR20150047215A (ko) * | 2013-10-24 | 2015-05-04 | 현대모비스 주식회사 | 회전형 라이다 센서를 이용한 타겟 차량 감지 장치 및 회전형 라이다 센서 |
| CN203688800U (zh) * | 2014-01-26 | 2014-07-02 | 山东省科学院海洋仪器仪表研究所 | 一种扫描式激光雷达及激光雷达系统 |
| KR101878484B1 (ko) * | 2016-11-25 | 2018-07-13 | (주)카네비컴 | 도로형상인식 전방충돌예방 라이다 시스템 |
| CN207528916U (zh) * | 2017-12-01 | 2018-06-22 | 北京怡孚和融科技有限公司 | 一种激光雷达三维扫描装置 |
| CN108356829B (zh) * | 2017-12-14 | 2023-08-15 | 河北汇金集团股份有限公司 | 两轮自平衡引导机器人 |
| CN109059878A (zh) * | 2018-08-03 | 2018-12-21 | 中国航空工业集团公司雷华电子技术研究所 | 基于视觉识别的机载雷达天线二自由度运动姿态测量方法 |
-
2018
- 2018-12-29 CN CN201811633095.5A patent/CN109471088A/zh active Pending
-
2019
- 2019-05-07 CN CN201920636956.9U patent/CN210038147U/zh active Active
- 2019-05-07 CN CN201910373332.7A patent/CN109991589B/zh active Active
- 2019-12-24 WO PCT/CN2019/127995 patent/WO2020135433A1/zh not_active Ceased
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8368874B2 (en) * | 2009-01-29 | 2013-02-05 | Sanyo Electric Co., Ltd. | Beam irradiation device and laser radar system |
| CN104793619A (zh) * | 2015-04-17 | 2015-07-22 | 上海交通大学 | 基于摆动单线激光雷达的仓库巷道自动引导车导航装置 |
| CN105891839A (zh) * | 2016-04-02 | 2016-08-24 | 上海大学 | 一种具有彩色点云获取能力的全向激光雷达装置 |
| CN106154285A (zh) * | 2016-06-20 | 2016-11-23 | 上海交通大学 | 一种基于摆动激光雷达的可变视野三维重建装置 |
| CN107290734A (zh) * | 2017-08-22 | 2017-10-24 | 北京航空航天大学 | 一种基于自制地基激光雷达垂直度误差的点云误差校正方法 |
| CN108776344A (zh) * | 2018-05-03 | 2018-11-09 | 南京理工大学 | 一种低成本可斜射激光雷达 |
| CN109471088A (zh) * | 2018-12-29 | 2019-03-15 | 同方威视技术股份有限公司 | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 |
| CN109991589A (zh) * | 2018-12-29 | 2019-07-09 | 同方威视技术股份有限公司 | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415145A (zh) * | 2021-11-30 | 2022-04-29 | 宁波傲视智绘光电科技有限公司 | 一种用于激光雷达窗口片粘接的自动化设备 |
| CN115561733A (zh) * | 2022-09-29 | 2023-01-03 | 东风悦享科技有限公司 | 一种可自动调节的机械激光雷达固定装置及方法 |
| CN115561733B (zh) * | 2022-09-29 | 2025-11-11 | 东风悦享科技有限公司 | 一种可自动调节的机械激光雷达固定装置及方法 |
| CN118962632A (zh) * | 2024-10-14 | 2024-11-15 | 宁波舜宇车载光学技术有限公司 | 雷达数据处理装置、激光雷达以及数据传输方法 |
| CN118962632B (zh) * | 2024-10-14 | 2025-05-13 | 宁波舜宇车载光学技术有限公司 | 雷达数据处理装置、激光雷达以及数据传输方法 |
| CN120332603A (zh) * | 2025-04-16 | 2025-07-18 | 哈尔滨工业大学 | 一种外转子电机驱动的t型转台 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109991589B (zh) | 2024-07-05 |
| CN109991589A (zh) | 2019-07-09 |
| CN109471088A (zh) | 2019-03-15 |
| CN210038147U (zh) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109991589B (zh) | 扫描角度调整装置、激光雷达系统、载具及自动校正方法 | |
| US12422853B2 (en) | Apparatus, system, and method of using depth assessment for autonomous robot navigation | |
| US10982481B2 (en) | Door position sensor and system for a vehicle | |
| US10745957B2 (en) | Seal based object detection for vehicle door assist system | |
| CN111983936B (zh) | 一种无人机半物理仿真系统及测评方法 | |
| US20170030134A1 (en) | Vehicle door assist system based on location and conditions | |
| KR20050082541A (ko) | 가상 센서를 이용한 로봇의 네비게이션 방법 및 장치 | |
| CN108701362A (zh) | 目标跟踪期间的障碍避免 | |
| CN109238221B (zh) | 一种车辆周围环境的检测方法及装置 | |
| CN114667462A (zh) | 激光雷达装置、系统以及其控制方法 | |
| WO2019176278A1 (ja) | 情報処理装置、情報処理方法、プログラム、及び移動体 | |
| JP6601670B2 (ja) | 路面状況認識装置、そのプログラム、及び移動体システム | |
| Csaba et al. | Differences between Kinect and structured lighting sensor in robot navigation | |
| CN110769987A (zh) | 地面遥控机器人的控制方法和地面遥控机器人 | |
| WO2021106510A1 (ja) | 障害物認識装置 | |
| US11079763B2 (en) | Trajectory planning method and system | |
| TWI689392B (zh) | 機械臂控制方法及機械臂 | |
| KR20230069484A (ko) | 로봇 센서 캘리브레이션 방법 및 이를 구현하는 로봇 | |
| Peng et al. | Composition of Robot System | |
| CN120907557B (zh) | 基于多传感器融合的无人机动态路径实时优化方法 | |
| JP7757740B2 (ja) | 走行装置及び走行装置の制御方法 | |
| CN120370994A (zh) | 面向复杂环境的无人机防碰撞自适应方法 | |
| TWI708129B (zh) | 自動導引車輛聯動系統與控制方法 | |
| KR20240025092A (ko) | 자율주행 차량의 센서 제어장치 및 방법 | |
| CN116039802A (zh) | 移动底盘及传感器的采集方向的调节方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19904692 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 19904692 Country of ref document: EP Kind code of ref document: A1 |