Conferences | Guanrui Li

Trajectory Planning Using Safe Ellipsoidal Corridors as Projections of Orthogonal Trust Regions

Tue, 03 Feb 2026 00:00:00 +0000

Enhancing Human-Drone Spatial Awareness with a Mixed Reality Interface for Drone Assisted Interactive Navigation

Thu, 01 May 2025 00:00:00 +0000

Decentralized Nonlinear Model Predictive Control for Safe Collision Avoidance in Quadrotor Teams with Limited Detection Range

Sun, 01 Sep 2024 00:00:00 +0000

Optimal Trajectory Planning for Cooperative Manipulation with Multiple Quadrotors Using Control Barrier Functions

Sun, 01 Sep 2024 00:00:00 +0000

Experimental System Design of an Active Fault-Tolerant Quadrotor

Mon, 01 Jan 2024 00:00:00 +0000

Geometric Fault-Tolerant Control of Quadrotors in Case of Rotor Failures: An Attitude Based Comparative Study

Sun, 01 Jan 2023 00:00:00 +0000

Nonlinear Model Predictive Control for Cooperative Transportation and Manipulation of Cable Suspended Payloads with Multiple Quadrotors

Sun, 01 Jan 2023 00:00:00 +0000

Learning Model Predictive Control for Quadrotors

Sat, 01 Jan 2022 00:00:00 +0000

Vision-based Relative Detection and Tracking for Teams of Micro Aerial Vehicles

Sat, 01 Jan 2022 00:00:00 +0000

Aggressive Visual Perching with Quadrotors on Inclined Surfaces

Fri, 01 Jan 2021 00:00:00 +0000

Design and Experimental Evaluation of Distributed Cooperative Transportation of Cable Suspended Payloads with Micro Aerial Vehicles

Fri, 01 Jan 2021 00:00:00 +0000

PCMPC: Perception-Constrained Model Predictive Control for Quadrotors with Suspended Loads using a Single Camera and IMU

Fri, 01 Jan 2021 00:00:00 +0000

Abstract:

In this paper, we address the Perception–Constrained Model Predictive Control (PCMPC) and state estimation problems for quadrotors with cable suspended payloads using a single camera and Inertial Measurement Unit (IMU). We design a receding–horizon control strategy for cable suspended payloads directly formulated on the system manifold configuration space SE(3)xS^2. The approach considers the system dynamics, actuator limits and the camera’s Field Of View (FOV) constraint to guarantee the payload’s visibility during motion. The monocular camera, IMU, and vehicle’s motor speeds are combined to provide estimation of the vehicle’s states in 3D space, the payload’s states, the cable’s direction and velocity. The proposed control and state estimation solution runs in real-time at 500 Hz on a small quadrotor equipped with a limited computational unit. The approach is validated through experimental results considering a cable suspended payload trajectory tracking problem at different speeds.

Efficient Trajectory Library Filtering for Quadrotor Flight in Unknown Environments

Wed, 01 Jan 2020 00:00:00 +0000

ModQuad-DoF: A Novel Yaw Actuation for Modular Quadrotors

Wed, 01 Jan 2020 00:00:00 +0000

Observability-Aware Trajectories for Geometric and Inertial Self-Calibration

Wed, 01 Jan 2020 00:00:00 +0000

ModQuad-Vi: A vision-based self-assembling modular quadrotor

Tue, 01 Jan 2019 00:00:00 +0000

ModQuad: The flying modular structure that self-assembles in midair

Mon, 01 Jan 2018 00:00:00 +0000