WO2021000809A1 - 利用激光slam在长走廊建图的方法、装置、系统、存储介质 - Google Patents
利用激光slam在长走廊建图的方法、装置、系统、存储介质 Download PDFInfo
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- WO2021000809A1 WO2021000809A1 PCT/CN2020/098684 CN2020098684W WO2021000809A1 WO 2021000809 A1 WO2021000809 A1 WO 2021000809A1 CN 2020098684 W CN2020098684 W CN 2020098684W WO 2021000809 A1 WO2021000809 A1 WO 2021000809A1
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- long corridor
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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
- G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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- the present disclosure relates to the field of navigation technology, and in particular to a method, device, system, and storage medium for building maps in long corridors by using laser SLAM.
- SLAM Simultaneous Localization And Mapping
- the traditional SLAM map construction process is mainly: the vehicle collects observation data of the surrounding environment (such as photographed images or point cloud data) through on-board sensors (such as cameras or lidar) to track and match the collected observation data ; According to the matching relationship between the observation data, the pose movement information corresponding to the on-board sensor is calculated, and then the vehicle itself can be positioned, and an incremental map can be constructed based on the vehicle positioning information.
- the current SLAM technology for mobile robots based on 2D lidar does not solve the problem of positioning and mapping of mobile robots in long corridors or long passages.
- the present disclosure proposes a method, device, system and storage medium for building maps in long corridors using laser SLAM, aiming to solve the above-mentioned problems, and aiming to apply to mobile robots to solve the current technology positioning errors or mapping confusion And other issues.
- an object of the present disclosure is to provide a method for building maps in a long corridor environment by using laser SLAM technology. This method can flexibly and effectively solve the problems of positioning errors or confusion of maps in the current technology.
- Another purpose of the present disclosure is to provide a device with the function of using the laser SLAM technology to create a map in a long corridor environment, which can realize the above-mentioned method of using the laser SLAM technology to create a map in a long corridor environment and achieve the same effect of the method.
- the third purpose of the present disclosure is to provide a system with the function of using laser SLAM technology to create maps in a long corridor environment, which can realize the above-mentioned method of using laser SLAM technology to create maps in a long corridor environment and achieve the same effect of the method.
- the fourth purpose of the present disclosure is to propose a non-transitory computer-readable storage medium on which a computer program is stored.
- a method of using laser SLAM technology to build maps in a long corridor environment including the following steps:
- Step S1 obtain the point cloud data of the lidar
- Step S2 extract line segments from the point cloud data, determine whether it is a long corridor environment based on the extracted line segments, if it is determined to be a long corridor environment, perform step S3, if not, repeat steps S1-S2;
- Step S3 fusing the predicted current robot position with the heading obtained after matching the lidar scan to obtain the fused robot pose
- Step S4 using the fused robot pose as the pose for SLAM real-time positioning to realize positioning and map construction in a long corridor environment.
- step S1 further includes that the lidar is installed on a mobile robot.
- step S1 also includes using a line extraction algorithm to extract point cloud data obtained by lidar.
- a further technical solution is that the mobile robot carrying the lidar executes step S2, and the mobile robot uses a split and merge algorithm and a clustering algorithm to extract line segments.
- step S2 further includes determining whether the mobile robot is located in a long corridor environment according to the line segment;
- step S3 If the line segments are all parallel to each other and not all collinear, it is determined that the mobile robot has entered the long corridor environment and step S3 is executed;
- step S1 is executed.
- step S3 further includes that the fusion pose is the pose of the mobile robot carrying lidar.
- a further technical solution is that the mobile robot carrying the lidar executes the step S4 to realize the mobile robot working in a long corridor environment.
- the present disclosure also discloses a device with the function of using laser SLAM technology to build maps in a long corridor environment, including a mobile robot, the mobile robot is installed with a lidar, the mobile robot includes a memory, a processor and stored in the memory A mapping program that can be run on the processor, wherein the mapping program is executed by the processor to implement the method for mapping in a long corridor environment using laser SLAM technology as described in any one of the above .
- a system with the function of using laser SLAM technology to create maps in a long corridor environment including a server, a mobile device with a lidar data connection with the server; wherein, the server includes a memory, a processor and stored in the memory
- a non-transitory computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the method for building a map in a long corridor environment using laser SLAM technology as described above is realized.
- the beneficial effect of the present disclosure is that the method of the present disclosure can enable mobile robots based on lidar to achieve high-precision positioning and mapping in a long corridor or long passage environment, without adding other sensors.
- the method of the present disclosure can enable mobile robots based on lidar to achieve high-precision positioning and mapping in a long corridor or long passage environment, without adding other sensors.
- only laser radar, odometer and IMU can realize high-precision laser SLAM technology for mobile robots in long corridors or long passage environments, which overcomes the traditional short-range 2D laser SLAM positioning errors in long corridors or long passage environments. Or the problem of messy mapping, which can improve the user experience.
- FIG. 1 is a schematic block diagram of the process of a method for building a map in a long corridor environment by using laser SLAM technology according to the present disclosure
- Fig. 2 is a schematic flow chart of the principle of the flowchart of Fig. 1.
- first or second is only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined with “first” or “second” may explicitly or implicitly include one or more of these features.
- plurality means two or more than two unless specifically defined otherwise.
- the terms “installed”, “connected”, “connected” or “fixed” shall be interpreted broadly, for example, it may be connected or detachable. Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements.
- installed shall be interpreted broadly, for example, it may be connected or detachable. Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements.
- the "above” or “below” of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them.
- “above”, “above” and “above” the second feature of the first feature include the first feature being directly above and obliquely above the second feature, or it simply means that the level of the first feature is higher than the second feature.
- the “below”, “below” and “below” the first feature of the second feature include the first feature directly below and obliquely below the second feature, or it simply means that the level of the first feature is smaller than the second feature.
- the method flow chart shown in FIG. 1 is a specific embodiment of a method for building a map in a long corridor environment by using laser SLAM technology in the present disclosure, including the following steps:
- Step S1 Obtain the point cloud data of the lidar; specifically, this step can be applied to extract data from the working environment of the mobile robot;
- Step S2 extract line segments from the point cloud data, determine whether it is a long corridor environment based on the extracted line segments, if it is determined to be a long corridor environment, perform step S3, if not, repeat steps S1-S2;
- Step S3 fusing the predicted current robot position with the heading obtained after matching the lidar scan to obtain the fused robot pose
- Step S4 using the fused robot pose as the pose for SLAM real-time positioning to realize positioning and map construction in a long corridor environment.
- step S1 further includes that the lidar is installed on a mobile robot.
- the step S1 further includes using a line extraction algorithm to extract the point cloud data obtained by the lidar.
- the mobile robot carrying the lidar performs step S2, and the mobile robot uses the split and merge algorithm and the clustering algorithm to extract line segments.
- the line segment may be a A collection of several lines.
- the step S2 further includes determining whether the mobile robot is located in a long corridor environment according to the line segment;
- step S3 If the line segments are all parallel to each other and not all collinear, it is determined that the mobile robot has entered the long corridor environment and step S3 is executed;
- step S1 is executed.
- the step S3 further includes that the fusion pose is the pose of the mobile robot carrying the lidar.
- the mobile robot carrying the lidar executes the step S4, so that the mobile robot can work in a long corridor environment.
- the present invention is the principle flow of the mapping method of the invention:
- the machine When the machine just enters the long corridor or long passage environment, it uses the line-up algorithm to extract the lidar data as the condition for identifying the long corridor or long passage environment.
- the predicted x, y position (mobile robot position) and the heading fusion after the lidar matching are used as the pose of SLAM real-time positioning, so as to realize the mobile robot in the long corridor or long passage environment
- SLAM real-time positioning
- the present disclosure also discloses a device with the function of using laser SLAM technology to build maps in a long corridor environment, including a mobile robot, the mobile robot is installed with a lidar, the mobile robot includes a memory, a processor and stored in the memory A mapping program that can be run on the processor, wherein the mapping program is executed by the processor to implement the method for mapping in a long corridor environment using laser SLAM technology as described in any one of the above .
- the memory can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions.
- the type of dynamic storage device can also be electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM), or other optical disk storage, optical disc Storage (including compact discs, laser discs, optical discs, digital versatile discs or Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by Any other medium accessed by the computer, but not limited to this.
- the memory can exist independently and is connected to the processor through a communication bus.
- the memory can also be integrated with the processor.
- a system with the function of using laser SLAM technology to create maps in a long corridor environment including a server, a mobile device with a lidar data connection with the server; wherein, the server includes a memory, a processor and stored in the memory
- the memory can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, random access memory (RAM), or other types that can store information and instructions.
- the type of dynamic storage device can also be electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact Disc Read-Only Memory, CD-ROM), or other optical disk storage, optical disc Storage (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program codes in the form of instructions or data structures and can be used by Any other medium accessed by the computer, but not limited to this.
- the memory can exist independently and is connected to the processor through a communication bus.
- the memory can also be integrated with the processor.
- a non-transitory computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the method for building a map in a long corridor environment using laser SLAM technology as described above is realized.
- the storage medium may be an internal storage unit of the aforementioned server, such as a hard disk or memory of the server.
- the storage medium may also be an external storage device of the device, such as a plug-in hard disk equipped on the device, a Smart Media Card (SMC), a Secure Digital (SD) card, and a flash memory card. (Flash Card) etc.
- the storage medium may also include both an internal storage unit of the device and an external storage device.
- using the method of the present disclosure can enable mobile robots based on lidar to achieve high-precision positioning and mapping in long corridors or long passages. Without adding other sensors, only lidar and mileage can be used.
- the high-precision laser SLAM technology of mobile robots in long corridors or long passages can be realized by measuring and IMU, which overcomes the traditional short-range 2D laser SLAM in long corridors or long passages. Improve the user experience.
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Abstract
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Claims (10)
- 一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,包括以下步骤:步骤S1,获取激光雷达的点云数据;步骤S2,从所述点云数据中提取出线段,根据提取出的线段判断是否为长走廊环境,若判断为长走廊环境则执行步骤S3,若否则重复执行步骤S1-S2;步骤S3,将预测的当前机器人位置与激光雷达扫描匹配后获取的航向相融合,获得融合后的机器人位姿;步骤S4,利用所述融合后的机器人位姿作为SLAM实时定位的位姿,实现在长走廊环境中定位与地图构建。
- 根据权利要求1所述的一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,所述步骤S1还包括,所述激光雷达安装于移动机器人。
- 根据权利要求1所述的一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,所述步骤S1还包括,运用提线算法提取激光雷达获得的点云数据。
- 根据权利要求1所述的一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,承载有所述激光雷达的移动机器人执行步骤S2,所述移动机器人运用分裂合并算法与聚类算法提取出线段。
- 根据权利要求4所述的一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,所述步骤S2还包括,根据所述线段判断移动机器人是否位于长走廊环境;若所述线段均相互平行并不全共线,则判断移动机器人已进入长走廊环境并执行步骤S3;若所述线段存在任意两条不平行的线段,则判断移动机器人未进入长走廊环境并执行步骤S1。
- 根据权利要求1所述的一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,所述步骤S3还包括,所述融合位姿为承载激光雷达的移动机器人位姿。
- 根据权利要求1所述的一种利用激光SLAM技术在长走廊环境建图的方法,其特征在于,承载有所述激光雷达的移动机器人执行所述步骤S4,实现移动机器人在长走廊环境中工作。
- 一种具备利用激光SLAM技术在长走廊环境建图功能的装置,其特征在于,包括移动机器人,所述移动机器人安装有激光雷达,所述移动机器人包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的建图程序,其中,所述建图程序被所述处理器执行时实现如权利要求1-7中任一项所述的利用激光SLAM技术在长走廊环境建图的方法。
- 一种具备利用激光SLAM技术在长走廊环境建图功能的系统,其特征在于,包括服务器,与服务器数据连接并且具有激光雷达的可移动式设备;其中,所述服务器包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的建图程序,所述建图程序被所述处理器执行时实现如权利要求1所述的利用激光SLAM技术在长走廊环境建图方法。
- 一种非临时性计算机可读存储介质,其上存储有计算机程序,该程序被处理器执行时实现如权利要求1所述的利用激光SLAM技术在长走廊环境建图方法。
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103914068A (zh) * | 2013-01-07 | 2014-07-09 | 中国人民解放军第二炮兵工程大学 | 一种基于栅格地图的服务机器人自主导航方法 |
CN107167148A (zh) * | 2017-05-24 | 2017-09-15 | 安科机器人有限公司 | 同步定位与地图构建方法和设备 |
CN107991680A (zh) * | 2017-11-21 | 2018-05-04 | 南京航空航天大学 | 动态环境下基于激光雷达的slam方法 |
CN108332758A (zh) * | 2018-01-26 | 2018-07-27 | 上海思岚科技有限公司 | 一种移动机器人的走廊识别方法及装置 |
WO2018142395A1 (en) * | 2017-01-31 | 2018-08-09 | Arbe Robotics Ltd | A radar-based system and method for real-time simultaneous localization and mapping |
CN108732584A (zh) * | 2017-04-17 | 2018-11-02 | 百度在线网络技术(北京)有限公司 | 用于更新地图的方法和装置 |
CN109358340A (zh) * | 2018-08-27 | 2019-02-19 | 广州大学 | 一种基于激光雷达的agv室内地图构建方法及系统 |
CN110333495A (zh) * | 2019-07-03 | 2019-10-15 | 深圳市杉川机器人有限公司 | 利用激光slam在长走廊建图的方法、装置、系统、存储介质 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016138567A1 (en) * | 2015-03-05 | 2016-09-09 | Commonwealth Scientific And Industrial Research Organisation | Structure modelling |
CN109345574B (zh) * | 2018-08-31 | 2020-10-09 | 西安电子科技大学 | 基于语义点云配准的激光雷达三维建图方法 |
-
2019
- 2019-07-03 CN CN201910595880.4A patent/CN110333495A/zh active Pending
-
2020
- 2020-06-29 WO PCT/CN2020/098684 patent/WO2021000809A1/zh active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103914068A (zh) * | 2013-01-07 | 2014-07-09 | 中国人民解放军第二炮兵工程大学 | 一种基于栅格地图的服务机器人自主导航方法 |
WO2018142395A1 (en) * | 2017-01-31 | 2018-08-09 | Arbe Robotics Ltd | A radar-based system and method for real-time simultaneous localization and mapping |
CN108732584A (zh) * | 2017-04-17 | 2018-11-02 | 百度在线网络技术(北京)有限公司 | 用于更新地图的方法和装置 |
CN107167148A (zh) * | 2017-05-24 | 2017-09-15 | 安科机器人有限公司 | 同步定位与地图构建方法和设备 |
CN107991680A (zh) * | 2017-11-21 | 2018-05-04 | 南京航空航天大学 | 动态环境下基于激光雷达的slam方法 |
CN108332758A (zh) * | 2018-01-26 | 2018-07-27 | 上海思岚科技有限公司 | 一种移动机器人的走廊识别方法及装置 |
CN109358340A (zh) * | 2018-08-27 | 2019-02-19 | 广州大学 | 一种基于激光雷达的agv室内地图构建方法及系统 |
CN110333495A (zh) * | 2019-07-03 | 2019-10-15 | 深圳市杉川机器人有限公司 | 利用激光slam在长走廊建图的方法、装置、系统、存储介质 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113218384A (zh) * | 2021-05-19 | 2021-08-06 | 中国计量大学 | 一种基于激光slam的室内agv自适应定位系统 |
CN113310484A (zh) * | 2021-05-28 | 2021-08-27 | 杭州艾米机器人有限公司 | 一种移动机器人定位方法和系统 |
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