Navigation Input Method for Flexible Destination Parameter Selection
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Solution Overview
Problem
Conventional navigation and information systems require users to input destination parameters sequentially and unambiguously, which can be cumbersome, especially in countries with differing postal and political addressing systems, leading to increased input steps and potential errors.
Innovation Solution
A method allowing users to input characters for one parameter without completing previous ones, enabling step-wise limitation of possible elements and switching between parameters, with automatic adaptation of selection sets and cancellation of inputs to ensure compatibility and reduce errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If users are guided to input destination parameters sequentially with complete unambiguous input required before moving to the next parameter, then input accuracy is improved, but the number of input steps and time required increases
Solution Approach 1:
The system allows users to input only partial information for destination parameters rather than requiring complete unambiguous input. The selection set is limited step-wise based on the characters input so far, enabling users to proceed to the next parameter with partial information. This resolves the contradiction by accepting partial action (incomplete input) while still achieving the goal through progressive limitation of the selection set.
2Device complexity
If the system provides fixed predefined sequences for destination parameter input, then input structure is improved, but flexibility and ease of operation deteriorates
Solution Approach 1:
The system dynamically adapts the input process by allowing flexible switching between destination parameters based on user needs. The selection set is continuously updated based on characters input for each parameter, enabling dynamic adjustment of the input sequence. Users can switch between parameters freely rather than following fixed predefined sequences, resolving the contradiction between structure and flexibility.
3Loss of information
If the system requires complete input of one destination parameter before selecting the next, then unambiguousness is improved, but operability and speed of input deteriorates
Solution Approach 1:
The system accepts partial input for destination parameters and limits the selection set based on the characters input so far. Users can switch to the next parameter without completing the current one, inputting only as much information as needed. This resolves the contradiction by allowing partial action while maintaining unambiguousness through progressive limitation of possible matches.
Solution Approach 2:
The system performs preliminary limitation of the selection set based on characters input for each parameter. As users input characters, the system pre-limits the selection set for that parameter and updates selection sets for other parameters, enabling faster progression through the input process while maintaining unambiguousness.
Data Source
AI summary
A method for destination selection in a navigation system in which each destination from a totality of all destinations is defined by destination parameters and a set of possible destinations from the totality of all destinations is limited step-wise due to the input of individual characters for one parameter. When inputting the characters, a switch may be made from one destination parameter to an input of a character for another parameter.