Research Article
A Resource-Efficient Approach of GNSS Activation for Pedestrian Monitoring
@INPROCEEDINGS{10.1007/978-3-031-63989-0_28, author={Asiimwe Paddy Junior and Luis Enrique D\^{\i}ez and Alfonso Bahillo and Odongo Steven Eyobu}, title={A Resource-Efficient Approach of GNSS Activation for Pedestrian Monitoring}, proceedings={Mobile and Ubiquitous Systems: Computing, Networking and Services. 20th EAI International Conference, MobiQuitous 2023, Melbourne, VIC, Australia, November 14--17, 2023, Proceedings, Part I}, proceedings_a={MOBIQUITOUS}, year={2024}, month={7}, keywords={GNSS activation Pedestrian Dead-Reckoning Resource-constrained environments}, doi={10.1007/978-3-031-63989-0_28} }- Asiimwe Paddy Junior
Luis Enrique Díez
Alfonso Bahillo
Odongo Steven Eyobu
Year: 2024
A Resource-Efficient Approach of GNSS Activation for Pedestrian Monitoring
MOBIQUITOUS
Springer
DOI: 10.1007/978-3-031-63989-0_28
Abstract
Remote monitoring provides effective solutions that bridge the gap between healthcare and where the elderly actually desire to live. In underdeveloped countries, the adoption rate of such platforms is exceptionally low due in part to the lack of resources that these systems take for granted. In other words, these systems are designed for rich countries but are also needed in resource-constrained environments. Global Navigation Satellite Systems (GNSS) are one of the main technologies for remote monitoring, though they consume relatively high amounts of energy. GNSS activation, i.e., varying the position update rate and turning the receiver on/off, is one of the main GNSS power optimization strategies, which has two existing methods: user activity-based and position-based. The former is usually too simple, suitable only for objects such as cars but not pedestrians. The latter requires installing beacons around users’ premises, which is more expensive. We are looking for a method that is smarter than checking the acceleration and cheaper than using beacons for GNSS activation. This work proposes a position-based method using a Pedestrian Dead-Reckoning (PDR) system. PDR is a navigation method that uses inertial sensors (accelerometer, gyroscope, magnetometer) to estimate position.
Experimental evaluations show that this proposed GNSS activation method achieves higher power optimization (by more than 90% in and outside the safe zone) than acceleration-based ones without installing any beacon, making it better for resource-constrained environments. Also, since the proposed method depends on the user’s estimated position, the effect of the PDR’s performance is assessed by evaluating two different PDR implementations.
