Navigation Device Segregating User and Official Data
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Solution Overview
Problem
Existing navigation systems lack the ability to reliably combine user-provided data with official data, particularly in areas with few users, and do not adequately differentiate between user-created and official navigation information, leading to potential inaccuracies and inconveniences.
Innovation Solution
A navigation device that integrates user-provided data based on driving history, allowing users to distinguish between user-provided and official data, and updates reliability scores based on usage, with a warning system to alert users of potential inaccuracies when using user-provided data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user-provided data is used to enhance navigation information coverage, then navigation accuracy in sparsely inhabited areas is improved, but the reliability of navigation information cannot be guaranteed
Solution Approach 1:
The navigation information is segmented into two distinct categories: official data and user-provided data. Each category is stored separately in the navigation information storage unit with unique identification flags, allowing the system to manage and present them differently based on reliability requirements
Solution Approach 2:
Different quality standards and presentation methods are applied to different types of data. Official data receives higher reliability scoring and is presented without warnings, while user-provided data is marked with warning messages and displayed separately, allowing the system to maintain high quality standards in critical areas while still incorporating user contributions
2Loss of information
If user-provided data is integrated without differentiation, then navigation information coverage is improved, but user awareness of data source reliability is reduced
Solution Approach 1:
The system uses visual differentiation through color coding and icon display to indicate the source and reliability of navigation information. User-provided data is displayed with distinct colors, icons, or visual markers compared to official data, enabling users to quickly identify and assess data reliability
Solution Approach 2:
Warning messages serve as an intermediary element between the navigation system and the user. These messages provide additional information about the reliability and source of user-provided data, mediating the user's understanding and trust in the navigation information
3Ease of operation
If navigation processing is performed automatically without user confirmation, then operational convenience is improved, but user safety is compromised due to potential use of inaccurate data
Solution Approach 1:
The system applies preliminary anti-action by displaying warning messages before navigation processing begins. These warnings alert users to potential issues with user-provided data, allowing users to make informed decisions about whether to proceed with navigation using such data, thereby preventing potential safety issues before they occur
Data Source
AI summary
A navigation device includes a navigation information storage unit in which navigation information, including the user-provided data, is stored; and a human machine interface unit that outputs the user-provided data and navigation information other than the user-provided data separately on an output device, that displays a warning message, read from the navigation information storage unit, and a screen prompting for an input for selecting whether to perform navigation processing based on the user-provided data when an instruction for performing navigation processing based on the user-provided data is input from an input device, and that causes a control unit, which performs navigation processing, to perform navigation processing based on the user-provided data when an instruction for performing navigation processing based on the user-provided data is input from the input device. In this way, a navigation system where user-provided data and official data are reliably combined can be provided.