Mingrui Luo

Ph.D. Student


 Robotics

 Redundant Manipulator

 Intelligent Control

 Reinforcement Learning

 Image Enhancement


RECENT NEWS

Visiting scholar at the Hamline Centre, Imperial College London on flexible/soft surgical medical robots
Recent research on motion planning of hyper-redundant manipulators has been accepted by TII and ICRA2024
Video presentation of research experience:👉Watch videos

EDUCATION

University of Chinese Academy of Sciences (UCAS) 2020 - Now | Control Theory and Control Engineering | Ph.D. StudentGPA:3.85/4.0

I studied under researchers Li En and Tan Min, researching system design, intelligent control, planning, and perception of bionic redundant manipulators. I have published 3 SCI papers in journals such as T-Mech, TII, 3 EI papers in conferences like ICRA, IROS, 4 patents, and 3 software copyrights. I have won the “Excellent Student” award twice in a row and have served as a member of the academic department of the student union.

Beijing University of Technology (BJUT) 2016 - 2020 | Mechanical Engineering (Major) Robot Engineering (Minor) | B.E. DegreeGPA:3.93/4.0

During my school years, I have won various scholarships at the school, city, and national levels, and have won prizes in various competitions. I have hosted or participated in many college student innovation projects and published many patents and software copyrights. I have obtained certificates for CET-4, CET-6, and computer level certification. I have served as the president of the Science and Technology Association and the student in charge of the Innovation Laboratory.

PUBLICATION

  Research

A Constrained Path Following Method for Snake-like Manipulators via Controlled Winding Uncoiling Strategy

ICRA 2024  |  IEEE Conference(TOP) EI Index

This paper fully imitates the winding and uncoiling behavior of snakes and proposes a novel constrained path following method R-SCP for snake-like manipulators to achieve efficient and controllable redundant motion planning.

A Local Obstacle Avoidance and Global Planning Method for the Follow-the-Leader Motion of Coiled Hyper-Redundant Manipulators

IEEE Transactions on Industrial Informatics  |  IF: 12.3/Q1(TOP)

The paper introduces the SFTL algorithm for confined-space tasks with CDHRMs. Utilizing reinforcement learning and dynamic optimization, SFTL achieves a 96% success rate in simulations and experiments, offering a robust planning framework for industrial CDHRM applications.

A Novel Coiled Cable-conduit-driven Hyper-redundant Manipulator for Remote Operating in Narrow Spaces

IROS 2023  |  IEEE Conference(TOP) EI Index

In this paper, we propose a coiled cable-conduit-driven hyper-redundant manipulator (C-CDHRM) with great slenderness and flexibility. By imitating the structure and behavior of a constricting snake, it can be uncoiled sequentially from a coiled storage state, led by the head. In terms of control methods, we propose a multi-layer control system that can make remote operations more accurate and reliable.

A Bioinspired Coiled Cable-Driven Manipulator: Mechatronic Design and Kinematics Planning with Multi-Constraints

IEEE/ASME Transactions on Mechatronics  |  IF: 6.4/Q1(TOP)

In this paper, a highly compact coiled CDHRM (C-CDHRM) that mimics the coiling behavior of snakes is designed, including 12 fully-constrained rigid bodies, 36 double-screw retractors, and a coiled feeding mechanism that can coil or uncoil according to task needs. The kinematic model and planning method we proposed enable the bioinspired coiled manipulator to exert excellent dexterity and maneuverability.

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End-Effector Pose Estimation in Complex Environments Using Complementary Enhancement and Adaptive Fusion of Multisensor

Journal of Sensors  |  IF: 2.336/Q3

In this paper, a pose estimation method is proposed with the fusion of vision sensors, inertial sensors, and encoders. The proposed method achieves better performances on estimation error and update frequency than the original extended Kalman filter (EKF) and unscented Kalman filter (UKF) algorithm, especially in complex environments.

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An Active and Adaptive Image Enhancement Method for Applications in Low-Light and Narrow Environment

CAC 2020  |  IEEE Conference EI Index

This paper proposes an active and adaptive image enhancement method, including the distributed light source model, the difference in brightness between frames, contrast limited adaptive histogram equalization, bilateral filter, and fuzzy inference parameter self-adjustment method. The method proposed in this paper can effectively enhance the images in the low-light and narrow environment.

  Patent

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GIS cavity operation device and GIS cavity operation method

Patent Grant  |  ZL 2022 1 0266769.2

The GIS cavity operation device provided by the invention effectively improves the execution efficiency of GIS cavity operation tasks, reduces the labor input and reduces the safety risk caused by manual maintenance.

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Rope-driven snakelike mechanical arm control method, device and equipment

Patent Grant  |  ZL 2021 1 1371378.9

The rope-driven serpentine robot arm control method proposed by this invention adjusts the joints closer to the root of the arm in priority sequence according to priority, avoiding the coupling problem of ropes when adjusting multiple ropes simultaneously, and correctly completes the control of ropes.

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A kind of auxiliary builds the lunar rover of lunar base and lunar rock sample collection

Patent Grant  |  ZL 2019 1 0391153.6

The invention discloses the lunar rover that a kind of auxiliary builds lunar base and lunar rock sample collection, which is broadly divided into four parts, builds feedstock capture system, wall formation system, chassis drive system and sample acquisition system.

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Water polo machine for automatically recovering device people

Patent Grant  |  ZL 2018 1 0457020.X

The present invention is water polo machine for automatically recovering device people, and it is most of that mechanism is divided into four: Robot actuating unit, water polo aggregation mechanism, water polo transport establishment, water polo collecting mechanism.

  Software for detection and classification of glue defects Yunong Tian;En Li;Mingrui Luo;et al. | CN. Copyright No.2022SR0606186
  Multilevel 3D scene reconstruction and segmentation software En Li;Mingrui Luo;et al. | CN. Copyright No.2021SR0524534
  Robot multi-sensor fusion perception and positioning software En Li;Mingrui Luo;et al. | CN. Copyright No.2021SR0524533
  Visual Enhancement Processing Software for Narrow Environment with Weak Light En Li;Mingrui Luo;et al. | CN. Copyright No.2021SR0588949
  A Stepping Motor Precision Control System Based on STM32 Cunfeng Kang;Chunyang Shi;Mingrui Luo;et al. | CN. Copyright No.2019SR1172985
  Intelligent camera motion control software Mingrui Luo;Shuwen Sun;et al. | CN. Copyright No.2018SR878238
  Intelligent printing model car control software Shuwen Sun;Gang Wang;Mingrui Luo;et al. | CN. Copyright No.2017SR685869
  Intelligent rainforest purifier automatic control system Cunfeng Kang;Yonglong Li;Mingrui Luo;et al. | CN. Copyright No.2017SR611328
  Indoor positioning and mobile grabbing system for elderly robot assistance Cunfeng Kang;Mingrui Luo;Zixiao Liu | CN. Copyright No.2017SR611308

AWARD

Excellent Student Model” title of University of Chinese Academy of Sciences in 2024
2023 "Challenge Cup" Capital University Extracurricular Academic and Technological Works Competition “First Prize
Excellent Student” title of University of Chinese Academy of Sciences in 2022
Excellent Student” title of University of Chinese Academy of Sciences in 2021
Outstanding Graduate of Beijing and Outstanding Graduate of Beijing University of Technology ▛Cert.▟
Excellent Learning Award, Innovation and Entrepreneurship Award, and Excellent Student of Beijing University of Technology
First Prize of the 5th Student Extracurricular Academic Works Competition of Beijing University of Technology
First Prize of the 10th Challenge Cup Capital University Extracurricular Academic Science and Technology Works Competition
First Prize of the 2019 National College Student Mechanical Product Digital Design Competition ▛Cert.▟
Honorable Mention of the 2019 American College Student Mathematical Modeling Competition ▛Cert.▟
Excellent Learning Award, Innovation and Entrepreneurship Award, Excellent Student, and Excellent Student Cadre of Beijing University of Technology
National Scholarship and Yang Shuzi Academic Scholarship ▛Cert.▟
First Prize of the 2018 National College Student Mathematical Modeling Competition (Beijing Division)
Silver Award of the 2018 "Challenge Cup" Capital University Student Entrepreneurship Competition
Excellent Learning Award, Science and Technology Innovation Award, Excellent Student, and Yang Shuzi Academic Scholarship of Beijing University of Technology
First Prize of the 3rd Student Extracurricular Academic Works Competition of Beijing University of Technology
First Prize of the 2017 China Robot Competition ▛Cert.▟

EXPERIENCE

Research and Application of Operation Robot System for Power Industry

National Key Research and Development Program (2018YFB1307400)  |  Core Student Member

 Developed an inspection robot for gas-insulated switchgear in power substations. The robot consists of an all-terrain mobile chassis, a multi-level lifting platform, and a cable-driven manipulator with a length of 2.2 meters, 24 degrees of freedom, and a diameter of 50 millimeters.

 Participated in the mechanism optimization of the manipulator, which imitates the coiling behavior of snakes and can coil to reduce storage space or uncoil to expand the working range.

 Participated in the design of the control system for the manipulator, mainly using CANOpen communication and realizing 36-axis high-precision synchronous control based on CODESYS and ROS.

 Participated in the planning algorithm design for the manipulator, using a follow-the-leader biomimetic strategy and Multi-constraint redundant inverse kinematics to control the tip pose, meeting the needs of narrow-space obstacle avoidance operations.

Research of a Narrow-space Coating Robot for Application in Aviation Manufacturing

Major enterprise Project  |  Core Student Member

 Developed a narrow-space coating robot, which consists of a 6-degree-of-freedom rigid manipulator and a 20-degree-of-freedom flexible manipulator.

 Participated in the design of the control system for the robot, using Ethercat as the main communication method to establish the collaboration between the rigid and flexible arms, and implemented CATIA's digital twin interaction through OPC UA.

 Participated in the development of algorithms for seam positioning and quality assessment, which uses computer vision to locate seams and provide guiding paths for the kinematic planning system, as well as evaluate the quality of the coating with the YOLO algorithm.

Research on Environment Perception and Reconstruction for Robots in Narrow Spaces

National Natural Science Foundation of China (61873267)  |  Bachelor's Thesis

 An active brightness equalization algorithm was developed for low-light environments using a combination of multiscale Gaussian filtering, distributed fill-light modeling, and gamma correction techniques.

 A repair algorithm was designed to address point cloud data in narrow blind spots through the utilization of spatial texture features.

 A robust algorithm for estimating the end effector pose of a robot was established, which fuses visual odometry, encoders, and MARG sensors using a fuzzy adaptive EKF based on a differential motion model.

 A multi-level reconstruction method for scenes was designed based on the OctoMap framework, which achieves real-time reconstruction of large-scale dynamic scenes while preserving essential details.