Terminal Position Measurement Area Selection
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Solution Overview
Problem
Position-based services face challenges in minimizing power consumption and maintaining accuracy during frequent position measurements, particularly when using GPS, which accelerates battery depletion in terminals.
Innovation Solution
A terminal determines a specific positioning area among multiple areas with different methods assigned based on power consumption and accuracy requirements, performing measurements using the assigned method when the battery is sufficient, and switching to the lowest power method when depleted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS-based position measurement is performed frequently, then position measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The service area is divided into multiple positioning areas, each assigned a different positioning method (GPS, Wi-Fi, cell tower). The terminal determines which positioning area it is in and selects the corresponding positioning method, thereby segmenting the power consumption and accuracy requirements across different spatial zones.
Solution Approach 2:
The positioning method is dynamically selected based on the terminal's current location and battery status. When the terminal moves to a different positioning area or when battery level changes, the positioning method is adjusted accordingly, transitioning between GPS (high accuracy, high power) and alternative methods (lower accuracy, lower power).
2Measurement precision
If position measurement is performed frequently, then position-based service accuracy is improved, but battery life decreases
Solution Approach 1:
The system changes the positioning method parameter based on battery status. When battery level is high, GPS-based positioning is used for high accuracy. When battery level drops below a threshold, the system switches to alternative positioning methods that consume less power, thereby extending battery life while maintaining acceptable service functionality.
3Adaptability or versatility
If multiple positioning methods are assigned to different areas, then positioning flexibility is improved, but system complexity increases
Solution Approach 1:
The terminal is designed with multi-functionality to support multiple positioning methods (GPS, Wi-Fi positioning, cell tower positioning). Each positioning method serves as a universal solution that can be activated based on the terminal's location and battery status, allowing the same device to adapt to different positioning requirements without requiring separate specialized devices.
Data Source
AI summary
This specification discloses a terminal which performs position measurement and an operating method of the terminal. That is, a specific positioning area, to which the terminal belongs, is determined out of two or more positioning areas, to which different positioning methods are assigned, and the position measurement is performed by the terminal according to the positioning method which is assigned to the specific positioning area, such that the power consumption amount of the terminal for performing the position measurement is minimized and the accuracy of the position measurement is improved.