Navigation System Scale Selection Logic
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Motor vehicle navigation and radio reception systems face challenges when users enter values that are not among the predefined selectable options, leading to user dissatisfaction as the systems often fail to accurately respond to user requests, particularly when rounding non-selectable values does not align with the user's intent.
Innovation Solution
A processor-driven method that automatically selects a display scale or frequency value by determining the closest or adjacent selectable value based on user input, ensuring that the system adapts to user requests by setting the new display scale or frequency value accordingly, even if the input is not a predefined option.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the number of selectable display scale values is limited to a predefined set, then the device complexity is reduced and ease of operation is improved, but the adaptability to user requests deteriorates when users enter non-selectable values
Solution Approach 1:
The system dynamically adjusts the display scale by comparing the user's input value against the current display scale and selecting the most appropriate predefined scale value. The processor evaluates whether to select the nearest smaller or larger scale value based on the input, creating a dynamic response that adapts to user intent while maintaining a limited set of selectable options.
Solution Approach 2:
The system changes the display scale parameter from the current value to a new value selected from a predefined set. When a user enters a non-selectable value, the processor determines the appropriate parameter change by selecting either the nearest smaller or larger scale value from the predefined set, thereby adjusting the display parameter to match user intent.
2Adaptability or versatility
If the system rounds non-selectable input values to the nearest selectable value, then the adaptability is improved, but the measurement precision deteriorates when the rounded value does not align with user intent
Solution Approach 1:
The system dynamically determines whether to round up or round down to the nearest selectable value by comparing the user's input with the current display scale. This dynamic decision-making process improves measurement precision by selecting the direction of rounding that best aligns with user intent, rather than using a fixed rounding rule.
Solution Approach 2:
The system uses feedback from the current display scale setting to determine how to adjust to the new scale. By comparing the input value with the current scale and evaluating the relationship between them, the system provides feedback-driven selection of the appropriate predefined scale value, thereby improving precision in scale selection.
3Adaptability or versatility
If the system accepts a wide range of input scale values, then the adaptability to user requests is improved, but the device complexity increases in handling and processing these values
Solution Approach 1:
The system segments the continuous range of possible scale values into discrete predefined scale levels. By accepting any input value but processing it through comparison with a segmented set of predefined scales, the system maintains high adaptability while reducing processing complexity through the use of a structured, divided scale system.
Solution Approach 2:
The processor acts as an intermediary between the user's continuous input value and the discrete predefined scale values. It mediates the conversion by comparing the input against the current scale and selecting the appropriate predefined value, thereby simplifying the interface between user input and system response without reducing adaptability.
Data Source
Figure 1~2
AI summary
The invention also relates to a navigation system, comprising an input device for inputing an input scale value, a display device for presenting road map information according to a selected display scale value, and a processor device, wherein the number of input scale values that can be input is larger than the number of display scale values that can be selected.