Hybrid Location Recognition System for Power-Constrained Terminals
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Solution Overview
Problem
Existing location information identification methods for user terminals consume excessive battery power and lack accuracy when multiple communication modules are enabled simultaneously, limiting the effectiveness of content provision services based on location.
Innovation Solution
A hybrid method utilizing a user terminal with first, second, and third location signal recognizers, and a service server that receives access information from these devices to provide accurate location-based content while minimizing power consumption by selectively enabling and disabling communication modules based on signal recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If all three location identification methods (geo-fence, BLE beacon, sound wave) are enabled simultaneously to improve location accuracy, then location information accuracy is improved, but battery power consumption increases excessively
Solution Approach 1:
The patent implements dynamic switching between different location identification methods based on the current operational context. The system transitions from geo-fence (wide coverage, low power) to BLE beacon (medium coverage, medium power) to sound wave (narrow coverage, high power) as the user approaches the target location, optimizing the balance between accuracy and power consumption at each stage
Solution Approach 2:
The patent divides the location identification process into three distinct stages corresponding to three different technologies. Each technology serves a specific segment of the overall location identification task: geo-fence for initial wide-area identification, BLE beacon for intermediate proximity detection, and sound wave for final precise indoor localization. This segmentation allows the system to use only the necessary technology for each stage rather than all technologies simultaneously
2Use of energy by moving object
If only geo-fence technology is used to reduce power consumption, then battery power consumption is reduced, but location information accuracy deteriorates in indoor environments
Solution Approach 1:
The system dynamically transitions from passive geo-fence monitoring to active BLE beacon and sound wave recognition when the user enters a predefined proximity threshold. This dynamic adaptation ensures low power consumption during transit while providing accurate indoor location information when needed
Solution Approach 2:
The patent uses geo-fence technology to preliminarily identify when a user is approaching a target location or venue. This preliminary action triggers the subsequent activation of more accurate but power-intensive BLE beacon and sound wave technologies only when necessary, rather than using them continuously
3Measurement precision
If BLE beacon and sound wave methods are used to improve indoor location accuracy, then location information accuracy is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic module activation where BLE and sound wave communication modules are enabled only when geo-fence detection indicates the user is in proximity to the target location. This dynamic approach reduces the effective device complexity during normal operation while maintaining high accuracy capabilities when needed
Solution Approach 2:
The system designs the user terminal with multi-functional location identification capabilities that can operate in different modes. The same hardware infrastructure supports multiple location technologies, allowing the device to function as a simple geo-fence client during transit and as a sophisticated indoor positioning system when required, rather than requiring separate dedicated systems for each function
Data Source
AI summary
The present disclosure relates to a user terminal capable of recognizing each of location signals output from a plurality of location signal output devices that have different coverages and output location signals, and a technology capable of detecting a location of a user terminal according to a location signal which the user terminal recognizes and providing various contents to a user through a service server providing content information suitable for the corresponding location.