Personal Mobility Device Location Correction via Server Clustering
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Solution Overview
Problem
Personal mobility devices often provide inaccurate storage location information, which can lead to inefficiencies in tracking and management, particularly in shared mobility systems, due to the lack of reliable methods to correct location errors based on weather and spatial accuracy.
Innovation Solution
A system comprising a personal mobility device and a server that uses communication modules (such as GPS, Bluetooth, and Wi-Fi) to obtain and correct storage location information, utilizing weather data and clustering areas established based on accurate location data from multiple devices to improve the accuracy of storage location determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If storage location information is obtained using only basic communication modules, then device complexity is reduced, but measurement precision of location information deteriorates
Solution Approach 1:
The patent combines multiple location determination methods (GPS, Wi-Fi positioning, Bluetooth positioning) into a unified location information acquisition system. The server integrates data from these different sources and applies comprehensive correction algorithms that consider weather conditions, device movement states, and historical location data to achieve high-precision location tracking without requiring any single complex hardware component
Solution Approach 2:
The server acts as an intermediary that receives raw location information from simple communication modules, processes it through multiple correction mechanisms (weather-based correction, movement-state-based correction, clustering-based correction), and outputs corrected high-precision location information. This mediator approach allows the use of simple device-side hardware while achieving complex processing results
2Measurement precision
If multiple correction methods are applied to improve location accuracy, then measurement precision improves, but device complexity and computational requirements worsen
Solution Approach 1:
The correction system is segmented into distinct modular components: weather information acquisition module, movement state determination module, clustering area generation module, and correction value calculation module. Each module performs a specific function and can be independently implemented or optimized. The server divides the correction process into sequential stages that can be executed separately, reducing overall system complexity while maintaining comprehensive correction capabilities
Solution Approach 2:
The system performs preliminary actions by pre-acquiring weather information, pre-determining movement states, and pre-generating clustering areas before the actual location correction is needed. These preliminary results are stored and reused when correction is required, reducing real-time computational complexity while maintaining high correction accuracy
Data Source
AI summary
An embodiment personal mobility device includes a location receiver configured to receive signals from a plurality of satellites to recognize location information, a communication module configured to perform communication in a different communication method than the location receiver and to communicate with an external communication device and a server, and a controller configured to obtain initial location information based on the signals received by the location receiver and control the initial location information to be transmitted to the server, in response to receipt of communication information by a communication module, cause the communication information to be transmitted to the server, and in response to receipt of corrected storage location information from the server, cause the received corrected storage location information to be stored.