Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot

Position and velocity estimation are the key technologies to improve the motion control ability of humanoid robots. Aiming at solving the positioning problem of humanoid robots, we have designed a legged odometry algorithm based on forward kinematics and the feed back of IMU. We modeled the forward...

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Main Authors: Huailiang Ma, Aiguo Song, Jingwei Li, Ligang Ge, Chunjiang Fu, Guoteng Zhang
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Biomimetic Intelligence and Robotics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2667379724000548
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author Huailiang Ma
Aiguo Song
Jingwei Li
Ligang Ge
Chunjiang Fu
Guoteng Zhang
author_facet Huailiang Ma
Aiguo Song
Jingwei Li
Ligang Ge
Chunjiang Fu
Guoteng Zhang
author_sort Huailiang Ma
collection DOAJ
description Position and velocity estimation are the key technologies to improve the motion control ability of humanoid robots. Aiming at solving the positioning problem of humanoid robots, we have designed a legged odometry algorithm based on forward kinematics and the feed back of IMU. We modeled the forward kinematics of the leg of the humanoid robot and used Kalman filter to fuse the kinematics information with IMU data, resulting in an accurate estimate of the humanoid robot’s position and velocity. This odometry method can be applied to different humanoid robots, requiring only that the robot is equipped with joint encoders and an IMU. It can also be extended to other legged robots. The effectiveness of the legged odometry scheme was demonstrated through simulations and physical tests conducted with the Walker2 humanoid robot.
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institution Kabale University
issn 2667-3797
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Biomimetic Intelligence and Robotics
spelling doaj-art-eaad05318da74a7590b3940aa5a944db2025-01-18T05:05:29ZengElsevierBiomimetic Intelligence and Robotics2667-37972025-03-0151100196Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robotHuailiang Ma0Aiguo Song1Jingwei Li2Ligang Ge3Chunjiang Fu4Guoteng Zhang5School of Instrument Science and Engineering, Southeast University, Nanjing 210096, ChinaSchool of Instrument Science and Engineering, Southeast University, Nanjing 210096, ChinaSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, SingaporeResearch Institute of UBTECH Robotics, Shenzhen 518000, ChinaResearch Institute of UBTECH Robotics, Shenzhen 518000, ChinaSchool of Control Science and Engineering, Shandong University, Jinan 250061, China; Corresponding author.Position and velocity estimation are the key technologies to improve the motion control ability of humanoid robots. Aiming at solving the positioning problem of humanoid robots, we have designed a legged odometry algorithm based on forward kinematics and the feed back of IMU. We modeled the forward kinematics of the leg of the humanoid robot and used Kalman filter to fuse the kinematics information with IMU data, resulting in an accurate estimate of the humanoid robot’s position and velocity. This odometry method can be applied to different humanoid robots, requiring only that the robot is equipped with joint encoders and an IMU. It can also be extended to other legged robots. The effectiveness of the legged odometry scheme was demonstrated through simulations and physical tests conducted with the Walker2 humanoid robot.http://www.sciencedirect.com/science/article/pii/S2667379724000548Humanoid robotsState estimationLegged odometryKalman filter
spellingShingle Huailiang Ma
Aiguo Song
Jingwei Li
Ligang Ge
Chunjiang Fu
Guoteng Zhang
Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot
Biomimetic Intelligence and Robotics
Humanoid robots
State estimation
Legged odometry
Kalman filter
title Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot
title_full Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot
title_fullStr Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot
title_full_unstemmed Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot
title_short Legged odometry based on fusion of leg kinematics and IMU information in a humanoid robot
title_sort legged odometry based on fusion of leg kinematics and imu information in a humanoid robot
topic Humanoid robots
State estimation
Legged odometry
Kalman filter
url http://www.sciencedirect.com/science/article/pii/S2667379724000548
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AT ligangge leggedodometrybasedonfusionoflegkinematicsandimuinformationinahumanoidrobot
AT chunjiangfu leggedodometrybasedonfusionoflegkinematicsandimuinformationinahumanoidrobot
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