Wearable Localization Switching Between Beacon and Satellite Tracking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wearable devices for healthcare monitoring, such as those used by individuals with dementia, face challenges in efficient power consumption and effective localization across various environments, particularly indoors and outdoors.
Innovation Solution
A method and system that employs two localization procedures: a first procedure using fixed radio receivers to detect beacon signals indoors and a second procedure based on the wearable device self-localization via satellite systems outdoors, optimizing power usage and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wearable device uses continuous satellite-based localization (second procedure), then location accuracy outdoors is improved, but power consumption increases
Solution Approach 1:
The system dynamically switches between two localization procedures based on environmental conditions and power availability. The location determiner selects the first procedure (beacon-based) or second procedure (satellite-based) adaptively, allowing the device to optimize between accuracy and power consumption in real-time
Solution Approach 2:
The system changes the operational parameters of localization by switching between different methods. The beacon signal transmission interval and satellite-based localization frequency are adjusted as parameters to control power consumption while maintaining acceptable location accuracy
2Use of energy by moving object
If the wearable device uses beacon signal transmission (first procedure), then power consumption is reduced, but localization capability fails outdoors
Solution Approach 1:
The wearable device is designed with multi-functionality to support both beacon-based localization (indoor) and satellite-based localization (outdoor). The system universally handles both procedures, allowing it to adapt to different environments and maintain localization capability regardless of whether the device is indoors or outdoors
Solution Approach 2:
The location determiner acts as an intermediary that receives data from both beacon signals and satellite systems, processes this information, and determines the final location. This intermediary component enables seamless transition between different localization methods based on environmental conditions
3Adaptability or versatility
If the device switches localization procedures frequently, then adaptability to environment is improved, but system complexity increases
Solution Approach 1:
The system performs preliminary determination of the appropriate localization procedure before actual localization occurs. The location determiner assesses environmental conditions and selects the suitable procedure in advance, avoiding frequent switching and reducing system complexity while maintaining environmental adaptability
Data Source
AI summary
A method for locating a wearable device. The method is performed by a location determiner being separate from the wearable device. The method comprises: determining a selected localisation procedure to be a first localisation procedure or a second localisation procedure, wherein the selected localisation procedure is determined to be the first localisation procedure based on a fixed radio receiver detecting a beacon signal from the wearable device, and wherein the selected localisation procedure is determined to be the second localisation procedure based on the fixed radio receiver failing to detect a beacon signal from the wearable device; and determining a location indication of the wearable device based on the selected localisation procedure.