Remote Recognition of Moving Behaviors for Captive Harbor Seals Using a Smart-Patch System via Bluetooth Communication.

Seungyeob Kim,Won Young Lee,Seung Gi Seo,Jinheon Jeong,Sung Hun Jin,Sehyeok Im

doi:10.3390/mi12030267

Seungyeob Kim, Won Young Lee + Show 4 more

Open Access

https://doi.org/10.3390/mi12030267

Copy DOI

Abstract

Animal telemetry has been recognized as a core platform for exploring animal species due to future opportunities in terms of its contribution toward marine fisheries and living resources. Herein, biologging systems with pressure sensors are successfully implemented via open-source hardware platforms, followed by immediate application to captive harbor seals (HS). Remotely captured output voltage signals in real-time mode via Bluetooth communication were reproducibly and reliably recorded on the basis of hours using a smartphone built with data capturing software with graphic user interface (GUI). Output voltages, corresponding to typical behaviors on the captive HS, such as stopping (A), rolling (B), flapping (C), and sliding (D), are clearly obtained, and their analytical interpretation on captured electrical signals are fully validated via a comparison study with consecutively captured images for each motion of the HS. Thus, the biologging system with low cost and light weight, which is fully compatible with a conventional smartphone, is expected to potentially contribute toward future anthology of seal animals.

Highlights

Previously reported motion tracking systems were very effective in the detection of human motion in real time because they were based on an accurate passive marker or active marker system commonly used in motion capture sensors, yielding direct data interpretation for complex physical movements and their interactions without any additional computation
Complicated sensors and optical systems including cameras, which inevitably require a stable posture without agitation, are tremendously challenging in terms of their establishment in the wilderness due to the requirement for frequent reestablishment corresponding to each physical moment of the targeted subjects, at least on the scale of meters
Encapsulant as a waterproof coating. Thereafter, for their quick and immediate attachment encapsulant as a waterproof coating. Thereafter, for their quick and immediate attachment (or(or detachment) behaviors, allall sensor platforms were detachment)during duringremote remoterecognition recognitionofof behaviors, sensor platforms were fixed with a rubber string, asas shown inin

Summary

Introduction

Previously reported motion tracking systems were very effective in the detection of human motion in real time because they were based on an accurate passive marker or active marker system commonly used in motion capture sensors, yielding direct data interpretation for complex physical (or anatomical) movements and their interactions without any additional computation. It is magnificently faster than conventional manual work, leading to a significant improvement of work efficiency in understanding motion capture and its physical meaning [42,43,44,45,46]. Complicated (or bulky) sensors and optical systems including cameras, which inevitably require a stable posture without agitation, are tremendously challenging in terms of their establishment in the wilderness due to the requirement for frequent reestablishment corresponding to each physical moment of the targeted subjects, at least on the scale of meters

Objectives

Results

Conclusion