Route Search System Using User Weather Experience
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Solution Overview
Problem
Existing route search systems often detour users unnecessarily based on uniform weather reference values, failing to account for individual user experiences, leading to inconvenience and perceived unnecessary detours.
Innovation Solution
A route search system that acquires estimated weather information and experienced weather information based on user history, preferentially selecting routes where the estimated weather matches the experienced weather, thereby reducing the likelihood of detours in regions the user is accustomed to.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a route detours around regions with weather exceeding reference values, then safety is improved, but user convenience deteriorates due to unnecessary detours
Solution Approach 1:
The patent applies local quality by customizing the reference values according to each user's individual weather experience and preferences. Instead of using uniform reference values for all users, the system creates user-specific thresholds based on their historical weather data, allowing the route search to adapt locally to each user's tolerance levels for different weather conditions.
Solution Approach 2:
The patent implements dynamics by making the reference values changeable and adaptable over time. The system dynamically adjusts reference values based on accumulated user experience data, allowing the detour criteria to evolve from static fixed values to dynamic user-specific values that reflect individual weather tolerance and experience.
2Reliability
If a detour is performed around spots with rainfall or snow exceeding reference values, then route safety is improved, but route distance increases causing user inconvenience
Solution Approach 1:
The patent applies parameter changes by modifying the reference values based on user-specific weather experience data. Instead of using fixed weather thresholds, the system changes the parameters (reference values) to reflect individual user tolerance, thereby adjusting when detours are triggered to balance safety with route efficiency.
3Reliability
If detour routes are searched around small spots exceeding reference values, then safety is improved, but the detour appears unnecessary to users
Solution Approach 1:
The patent applies local quality by creating user-specific reference values that reflect individual weather tolerance and experience. This customization ensures that detours are only recommended when truly necessary for each user's comfort and safety, rather than applying uniform standards that may trigger unnecessary detours for experienced users.
Data Source
AI summary
A route search system includes an electronic control unit configured to perform: acquiring estimated weather information, the estimated weather information being information about weather that is estimated in a region where a candidate of a first route from a departure place to a destination place exists; acquiring experienced weather information, the experienced weather information being information about weather that a user has experienced in past; an searching the first route by preferentially selecting a first road over a second road, and outputting information about the first route, the first road being a road in a first region where the estimated weather information coincides with the experienced weather information, the second road being a road in a second region where the estimated weather information does not coincide with the experienced weather information.