SolarSLAM: Battery-free Loop Closure for Indoor Localisation

Bo Wei, Weitao Xu, Chengwen Luo, Guillaume Zoppi, Dong Ma, Sen Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)
125 Downloads (Pure)


In this paper, we propose SolarSLAM, a battery-free loop closure method for indoor localisation. Inertial Measurement Unit (IMU) based indoor localisation method has been widely used due to its ubiquity in mobile devices, such as mobile phones, smartwatches and wearable bands. However, it suffers from the unavoidable long term drift. To mitigate the localisation error, many loop closure solutions have been proposed using sophisticated sensors, such as cameras, laser, etc. Despite achieving high-precision localisation performance, these sensors consume a huge amount of energy. Different from those solutions, the proposed SolarSLAM takes advantage of an energy harvesting solar cell as a sensor and achieves effective battery-free loop closure method. The proposed method suggests the key-point dynamic time warping for detecting loops and uses robust simultaneous localisation and mapping (SLAM) as the optimiser to remove falsely recognised loop closures. Extensive evaluations in the real environments have been conducted to demonstrate the advantageous photocurrent characteristics for indoor localisation and good localisation accuracy of the proposed method.
Original languageEnglish
Title of host publicationProceedings of the 2020 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2020)
Subtitle of host publicationOctober 25-29, 2020, Las Vegas, NV, USA
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781728162126
ISBN (Print)9781728162133
Publication statusPublished - 24 Oct 2020
EventIROS 2020: The IEEE/RSJ International Conference on Intelligent Robots and Systems - Las Vegas, United States
Duration: 25 Oct 202029 Oct 2020


ConferenceIROS 2020: The IEEE/RSJ International Conference on Intelligent Robots and Systems
Country/TerritoryUnited States
CityLas Vegas


Dive into the research topics of 'SolarSLAM: Battery-free Loop Closure for Indoor Localisation'. Together they form a unique fingerprint.

Cite this