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Navigation map enhancement with route sharing

IP.com Disclosure Number: IPCOM000184232D
Original Publication Date: 2009-Jun-16
Included in the Prior Art Database: 2009-Jun-16
Document File: 2 page(s) / 52K

Publishing Venue

IBM

Abstract

Geolocation-based navigation systems (typically road GPS) are limited by the quality and accuracy of the map on which route computation is made, generally limited to the static information that is refreshed with a low frequency (several months). This publication proposes a method that allows a refreshment of map data and the generation of new meta-data based on the sharing of routes made by the system users.

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Navigation map enhancement with route sharing

Introduction

    Geolocation-based navigation systems (typically road GPS) are limited by the quality and accuracy of the map on which route computation is made, generally limited to the static information that is refreshed with a low frequency (several months).

    This publication proposes a method that allows a refreshment of map data and the generation of new meta-data based on the sharing of routes made by the system users.

Sharing routes to enhance maps

    Navigation maps are generally obsolete and do not contain meta-data that can enhance route computation, like actual average speed for each section, traffic distribution over time, vehicle category (bike / car / small or big truck), etc. This is primarily because this information is difficult to acquire, maintain and distribute.

    The proposed method is to turn all the existing navigation systems into as many sources of information. Every individual navigation device records the history of routes that have been followed. The data is uploaded when synchronizing the navigation device synchronizes with a central server. The central server, in turn, sends the latest updated version of the map and its meta-data.

    Asynchronously, the central server makes statistical analysis of all the data that has been collected and uploaded. This allows enhancing the map with...