Navigation System Route Segment Quality Assessment
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Solution Overview
Problem
Existing route selection systems do not adequately consider the quality of road segments, which affects driver experience and safety, as they primarily focus on overall route quality rather than segment-specific conditions, and do not account for individual health conditions or preferences.
Innovation Solution
A navigation system that utilizes sensors to assess road segment quality based on factors like road irregularities and adjusts scores based on user input, including health conditions, to select route segments with higher quality and safety, using a processor and storage device to determine optimal routes and store segment quality data for future reference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If route selection systems focus on overall route quality, then route planning efficiency is improved, but road segment quality and driver safety are worsened
Solution Approach 1:
The patent divides the route into discrete road segments and evaluates each segment's quality independently using sensor data. This segmentation allows the system to identify and avoid specific hazardous segments (potholes, debris, uneven pavement) while maintaining overall route planning efficiency by processing segment data in parallel.
Solution Approach 2:
The system applies local quality assessment to specific road segments rather than evaluating the entire route uniformly. Each segment is scored based on its own conditions (surface quality, debris presence, irregularities), enabling targeted route optimization that prioritizes safety-critical segments while maintaining planning efficiency.
2Measurement precision
If sensors are used to assess road segment quality, then measurement precision is improved, but device complexity is worsened
Solution Approach 1:
The system uses the vehicle's existing sensors (accelerometers, suspension sensors) to self-assess road segment quality without requiring external infrastructure. The vehicle itself generates the measurement data through its own operation, eliminating the need for separate road inspection systems and reducing overall device complexity while maintaining high measurement precision.
Solution Approach 2:
The patent makes existing vehicle sensors serve multiple functions: they monitor both vehicle performance and road segment quality simultaneously. This multi-functionality allows the system to achieve precise road assessment without adding dedicated measurement devices, thereby improving measurement precision while minimizing the increase in device complexity.
Data Source
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AI summary
Embodiments are disclosed for driver assistance. An example driver assistance system for a vehicle includes a sensor module communicatively coupled to one or more sensors, a user interface to receive input from a user, a processor, and a storage device storing instructions executable by the processor to determine a route for the vehicle to travel. The instructions are further executable to select route segments of the route if the route segment quality of the route segments are greater than a threshold, one or more of the threshold and the route segment quality being based on inputs indicating an observed condition of the route segment, the inputs being received form one or more of the user and a remote user outside of the vehicle.