Lane-Level Traffic Information Using Mixed Vehicle Positioning Data
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Solution Overview
Problem
Existing navigation systems fail to differentiate traffic congestion levels between different lanes of a road, providing inaccurate route guidance due to reliance on average vehicle velocities across all lanes.
Innovation Solution
A traffic information server generates lane-basis traffic information by collecting and processing travel data from vehicles with precise and imprecise positioning capabilities, using weight factors to refine congestion data and provide lane-specific guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If average velocity of all vehicles on a road is used to determine traffic congestion, then the system is simple to implement, but the traffic information accuracy deteriorates because lane-specific congestion conditions cannot be differentiated
Solution Approach 1:
The patent segments traffic data collection and processing by lane, creating separate velocity measurements for each lane rather than using a single road-level average. This allows the system to differentiate congestion conditions across multiple lanes (e.g., left-turn, straight, right-turn lanes) while maintaining implementation feasibility through structured data organization
Solution Approach 2:
The patent applies local quality by providing lane-specific traffic information to vehicles based on their current lane position. Each vehicle receives customized congestion data relevant to its specific lane, enabling localized route guidance decisions while the server manages multiple lanes through standardized processing protocols
2Measurement precision
If lane-basis positioning is implemented to provide accurate lane-specific traffic information, then the traffic information accuracy improves, but the device complexity increases due to requirements for precise positioning technology
Solution Approach 1:
The patent creates a universal server-side platform that handles both lane-basis positioning vehicles and non-lane-basis vehicles through the same infrastructure. The server performs lane determination and traffic information generation for all vehicles, allowing precise positioning capabilities to be provided as a service rather than requiring every vehicle to have complex positioning hardware
Solution Approach 2:
The traffic information server acts as an intermediary that centralizes the complex lane determination and positioning logic. Instead of requiring each vehicle to independently perform complex lane-basis positioning, the server receives vehicle data, determines lane positions, and generates lane-specific traffic information, thereby reducing on-vehicle system complexity
3Adaptability or versatility
If traffic information is provided based on road-level averages, then the system can serve all vehicles uniformly, but the route guidance quality deteriorates because lane-specific congestion conditions are not reflected
Solution Approach 1:
The patent implements dynamic adaptation where the system automatically adjusts its information provision based on vehicle capabilities. Vehicles with lane-basis positioning receive detailed lane-specific congestion data, while vehicles without such capabilities receive road-level average information. This dynamic response maintains system universality while improving route guidance quality for capable vehicles
Data Source
AI summary
In a traffic information server, a device for controlling a vehicle, and a method for providing traffic information, the traffic information server receives, from precise positioning-performing vehicles that perform precise positioning on a lane basis, lane-basis travel data including at least one of lane-basis locations of the precise positioning-performing vehicles or velocities of the precise positioning-performing vehicles, or any combination thereof, receives, from imprecise positioning-performing vehicles incapable of performing the precise positioning, road-basis travel data including at least one of road-basis locations of the imprecise positioning-performing vehicles or velocities of the imprecise positioning-performing vehicles, or any combination thereof, and generates lane-basis traffic information based on at least one of the lane-basis travel data or the road-basis travel data, or any combination thereof.