Marsupial System Datasets



We present a dataset that englobes four different experiments in indoor scenarios carried out with our Marsupial System described in our paper submitted to Drones: S. Martinez-Rozas, D. Alejo, J. J. Carpio, F. Caballero and L. Merino. "Long Duration Inspection of GNSS-Denied Environments with a Tethered UAV-UGV Marsupial System". Each experiment was designed with a purpose in mind. The first presented experiment was designed to test the flight duration of our proposed system. Experiments 2 and 3 are designed to test our localization and trajectory tracking system, respectively. Finally, the last experiment is an emulated inspection test.

The datasets are timestamped and stored by means of the well-known Robot Operating System (ROS) bag package. The contents of the different bags is detailed in the contents section.

Copyright


All datasets and benchmarks on this page are copyright by us and published under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License. This means that you must attribute the work in the manner specified by the authors, you may not use this work for commercial purposes and if you alter, transform, or build upon this work, you may distribute the resulting work only under the same license.



Citation


Please cite our preprint that describes our Marsupial System if you use the dataset for your research. It would be more than welcome!!

Plain text

S. Martinez-Rozas, D. Alejo, J. J. Carpio, F. Caballero and L. Merino. "Long Duration Inspection of GNSS-Denied Environments with a Tethered UAV-UGV Marsupial System".

Bibtex

@misc{martínezrozas2025longdurationinspectiongnssdenied, title={Long Duration Inspection of GNSS-Denied Environments with a Tethered UAV-UGV Marsupial System}, author={Simón Martínez-Rozas and David Alejo and José Javier Carpio and Fernando Caballero and Luis Merino}, year={2025}, eprint={2505.23457}, archivePrefix={arXiv}, primaryClass={cs.RO}, url={https://arxiv.org/abs/2505.23457}, }

Acknowledgements

This work is partially supported by Programa Operativo FEDER Andalucia 2014-2020, Consejeria de Economía, Conocimiento y Universidades (DeepBot, PY20_00817) and the Insertion project, funded by MCIN with grant number PID2021-127648OB-C31.

Robotic System Overview

We use an ARCO ground platform from IDMind, which is a four-wheeled holonomic robot with an independent traction system designed for the delivery of heavy loads in factories. The base platform has two batteries for motors and electronics, respectively, that give ARCO an autonomy of three hours of operation with a maximum payload of over one hundred kilograms and a maximum speed of 0.8 m/s.

  • • Encoders in the robot base for odometry computation.

  • • One LiDAR sensor: Ouster OS-1-16.

  • • Weight: 40 Kg

  • • Battery autonomy: 3 hours

  • • Maximum Velocity: 0.8 m/s

  • • Acceleration: 1 m/s2

  • • Dimensions of the platform (Height x Width x Length) : 60 x 60 x 20 cm

We use an off-the-shelf Matrice 210 v2 platform from DJI tied to the UGV by an Elistair Power Over Tether Station.

  • • DJI M210.

  • • One LiDAR sensor: Ouster OS-1-16.

  • • Battery autonomy: 25 minutes w/o cable

  • • Battery autonomy: Up to two hours with cable

  • • Maximum Velocity: 10 m/s

  • • Dimensions of the platform (Height x Width x Length) : 60 x 60 x 20 cm

Scenarios

Scenario 1: Building 45

Scenario 1 was used for estimating the flight duration of the marsupial system and for initial integrity tests of the system. It is located at the Building 45 of the University Pablo de Olavide (UPO), Seville (Spain). We present three experiments that demonstrate the flight duration of our multi-robot marsupial system (Experiments 1-3)











Scenario 2: Old Thermal Station

Scenario 2 was used for testing our UAV localization localization system based on Direct Lidar Localization (DLL) (Experiments 4 and 5) and for demonstrating our UAV trajectory tracking system (Experiment 6). It is located at the Old Thermal Station building of the University Pablo de Olavide (UPO), Seville (Spain).













Scenario 3: Old Theatre

Scenario 3 was used for an emulated inspection test of the old theatre (Experiment 7). It is located at the Old Theater building of the University Pablo de Olavide (UPO), Seville (Spain).




Data Description

Each one of the provided datasets are stored entirely in a large bag file. This file includes the sensors measurements, odometry. All the datasets are logged and also processed using ROS tools, such as the ROS Bag. Most of the information stored into the logs use ROS standard messages and follows its development main guidelines, so that the reader can understand easily the dataset with a minimum ROS background.

Each bag file contains a subset of the following data. Please refer to the bag contents for details:


  • • UGV Robot Odometry
  • • UAV DJI SDK related information. Please go to the DJI_SDK GitHub for the definitions
  • • UGV internal sensing data
  • • UAV and/or UGV LiDAR measures
  • • UGV and/or UGV Onboard cameras
  • • Transform information of the disposition of the sensors

Downloads

Long Duration Experiments

Experiment 1

2023-10-30-11:39am
Has a duration of 1:00:47s receiving 36000+ UAV LiDAR scans and DJI status.

Contents Download

Experiment 2

2022-03-14-13:17
Has a duration of 1h:06:25s receiving 3800+ UAV LiDAR scans.

Contents Download

Experiment 3

2025-10-03-08:18:19
Has a duration of 2h:7m:24s receiving 26 battery data and 700k+ DJI SDK messages (including internal battery).

Contents Download

Localization and Tracking Experiments

Experiment 4

2022-04-14-13:17
Has a duration of 6:25s receiving 3800+ LiDAR scans.

Contents Download

Experiment 5

2020-11-27-12:57
Has a duration of 6:57s receiving 4000+ LiDAR scans.

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Experiment 6

2022-08-02-12:36
Has a duration of 5:16s receiving 9000+ images, and 3000+ LiDAR scans.

Contents Download

Experiment 7. Long Duration

Experiment 7

2020-11-27-12:57
Has a duration of 35:34s receiving 11000+ images and 4500+ LiDAR scans.

Contents Download

Changelog


  • 2025-09-04: First version
  • 2025-10-14: Added four experiments