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We introduce the problem of Dynamic Real-time Multimodal Routing (DREAMR), which requires planning and executing routes under uncertainty for an autonomous agent. The agent has access to a time-varying transit vehicle network in which it…

人工智能 · 计算机科学 2019-05-07 Shushman Choudhury , Jacob P. Knickerbocker , Mykel J. Kochenderfer

Ground robots navigating in complex, dynamic environments must compute collision-free trajectories to avoid obstacles safely and efficiently. Nonconvex optimization is a popular method to compute a trajectory in real-time. However, these…

机器人学 · 计算机科学 2024-10-07 Oscar de Groot , Laura Ferranti , Dariu M. Gavrila , Javier Alonso-Mora

With much research has been conducted into trajectory planning for quadrotors, planning with spatial and temporal optimal trajectories in real-time is still challenging. In this paper, we propose a framework for generating large-scale…

机器人学 · 计算机科学 2020-02-26 Zhepei Wang , Xin Zhou , Chao Xu , Jian Chu , Fei Gao

Motion planning in the presence of multiple dynamic obstacles is an important research problem from the perspective of autonomous vehicles as well as space-constrained multi-robot work environment. In this paper, we address the motion…

系统与控制 · 电气工程与系统科学 2019-12-30 Trishant Roy , Anindya Harchowdhury , Leena Vachhani

We tackle the problem of planning a minimum-time trajectory for a quadrotor over a sequence of specified waypoints in the presence of obstacles while exploiting the full quadrotor dynamics. This problem is crucial for autonomous search and…

机器人学 · 计算机科学 2022-02-09 Robert Penicka , Davide Scaramuzza

Drones have become essential in various applications, but conventional quadrotors face limitations in confined spaces and complex tasks. Deformable drones, which can adapt their shape in real-time, offer a promising solution to overcome…

机器人学 · 计算机科学 2025-05-22 Yuze Wu , Zhichao Han , Xuankang Wu , Yuan Zhou , Junjie Wang , Zheng Fang , Fei Gao

Unlike squared (or alike) quadrotors, elongated bi-copters leverage natural superiority in crossing tight spaces. To date, extensive works have focused on the design, modeling, and control of bi-copters. Besides, a proper motion planner…

机器人学 · 计算机科学 2024-06-04 Xin Dong , Yangjie Cui , Jingwu Xiang , Daochun Li , Zhan Tu

This paper proposes a fast and accurate trajectory planning algorithm for autonomous parking. Nominally, an optimal control problem should be formulated to describe this scheme, but the dimensionality of the optimal control problem is…

机器人学 · 计算机科学 2021-02-04 Bai Li , Tankut Acarman , Qi Kong , Youmin Zhang

Obstacle avoidance of quadrotors in dynamic environments is still a very open problem. Current works commonly leverage traditional static maps to represent static obstacles and the detection and tracking of moving objects (DATMO) method to…

机器人学 · 计算机科学 2022-02-16 Gang Chen , Peng Peng , Peihan Zhang , Wei Dong

The robotics community is increasingly interested in autonomous aerial transportation. Unmanned aerial vehicles with suspended payloads have advantages over other systems, including mechanical simplicity and agility, but pose great…

机器人学 · 计算机科学 2023-10-24 Haojia Li , Haokun Wang , Chen Feng , Fei Gao , Boyu Zhou , Shaojie Shen

This paper presents a framework for fast and robust motion planning designed to facilitate automated driving. The framework allows for real-time computation even for horizons of several hundred meters and thus enabling automated driving in…

机器人学 · 计算机科学 2019-02-26 Zlatan Ajanovic , Bakir Lacevic , Barys Shyrokau , Michael Stolz , Martin Horn

This paper addresses the problem of real-time vision-based autonomous obstacle avoidance in unstructured environments for quadrotor UAVs. We assume that our UAV is equipped with a forward facing stereo camera as the only sensor to perceive…

机器人学 · 计算机科学 2020-10-20 Shakeeb Ahmad , Rafael Fierro

Agile quadrotor flight relies on rapidly planning and accurately tracking time-optimal trajectories, a technology critical to their application in the wild. However, the computational burden of computing time-optimal trajectories based on…

机器人学 · 计算机科学 2023-05-05 Ziyu Zhou , Gang Wang , Jian Sun , Jikai Wang , Jie Chen

Motion planning is an extremely well-studied problem in the robotics community, yet existing work largely falls into one of two categories: computationally efficient but with few if any safety guarantees, or able to give stronger guarantees…

系统与控制 · 计算机科学 2018-03-08 David Fridovich-Keil , Sylvia L. Herbert , Jaime F. Fisac , Sampada Deglurkar , Claire J. Tomlin

This paper presents a two-step algorithm for online trajectory planning in indoor environments with unknown obstacles. In the first step, sampling-based path planning techniques such as the optimal Rapidly exploring Random Tree (RRT*)…

机器人学 · 计算机科学 2023-02-07 Martin Zimmermann , Minh Nhat Vu , Florian Beck , Anh Nguyen , Andreas Kugi

In recent years, using drone, also known as unmanned aerial vehicle (UAV), in close-distance visual inspection has became an active area in many disciplines. However, many challenges still remain before we can achieve autonomous inspection,…

机器人学 · 计算机科学 2019-04-11 Zhexiong Shang , Zhigang Shen

In many robotic tasks, such as autonomous drone racing, the goal is to travel through a set of waypoints as fast as possible. A key challenge for this task is planning the time-optimal trajectory, which is typically solved by assuming…

机器人学 · 计算机科学 2021-08-03 Yunlong Song , Mats Steinweg , Elia Kaufmann , Davide Scaramuzza

Autonomous navigation of ground robots has been widely used in indoor structured 2D environments, but there are still many challenges in outdoor 3D unstructured environments, especially in rough, uneven terrains. This paper proposed a…

机器人学 · 计算机科学 2022-09-28 Zhuozhu Jian , Zihong Lu , Xiao Zhou , Bin Lan , Anxing Xiao , Xueqian Wang , Bin Liang

In practical applications, autonomous quadrotors are still facing significant challenges, such as the detection and avoidance of very small and even dynamic obstacles (e.g., tree branches, power lines). In this paper, we propose a compact,…

机器人学 · 计算机科学 2021-03-02 Fanze Kong , Wei Xu , Fu Zhang

Fast and accurate path planning is important for ground robots to achieve safe and efficient autonomous navigation in unstructured outdoor environments. However, most existing methods exploiting either 2D or 2.5D maps struggle to balance…

机器人学 · 计算机科学 2023-03-10 Jiayang Liu , Xieyuanli Chen , Junhao Xiao , Sichao Lin , Zhiqiang Zheng , Huimin Lu