Dynamic Road Traffic Data Transmission via GPS Feedback Mesh
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Solution Overview
Problem
Existing road traffic information systems lack real-time accuracy and coverage, particularly for smaller roads and locations, and require subscription-based services, with no feedback from vehicle drivers' GPS terminals.
Innovation Solution
A method that uses GPS-enabled mobile terminals to collect and feed back position and speed data to a server, which estimates road traffic conditions using a mesh of checkpoints and transmits dynamic traffic maps to users in real-time, covering all road types, including smaller roads, and provides visual and ergonomic displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If road traffic data are collected using external entities with camera videos at specific road sections, then road traffic information can be obtained for major highways and towns, but real-time accuracy and coverage for smaller roads and locations deteriorate
Solution Approach 1:
The patent implements feedback by using GPS-enabled mobile terminals to continuously report position and speed data back to the server. This creates a real-time feedback loop where traffic conditions are automatically updated based on actual vehicle movements, eliminating the need for manual camera-based monitoring and enabling both high accuracy and broad coverage simultaneously.
Solution Approach 2:
The system enables self-service by allowing mobile terminals to automatically collect, transmit, and process their own position and speed data without requiring external intervention. Each terminal contributes to the collective traffic information pool, enabling the system to achieve comprehensive coverage and real-time accuracy through automated user-generated data.
2Productivity
If GPS-enabled mobile terminals are used to collect position and speed data from all user terminals, then real-time road traffic information for all locations including smaller roads can be provided, but system complexity and data processing requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the service area into a mesh of checkpoints and associating specific road sections with each checkpoint. This segmentation allows the server to process and manage traffic data in discrete, manageable units rather than handling continuous geographic space, reducing computational complexity while maintaining real-time information delivery capability.
Solution Approach 2:
The system implements partial action by determining and transmitting only the portion of the traffic map that is relevant to each user's current location and destination. Instead of transmitting complete traffic data for all road sections, the server selectively provides information for checkpoint-associated road sections that affect the user's route, reducing data transmission requirements and system complexity.
3Measurement precision
If a mesh of checkpoints is created to define short distance road sections, then accurate local traffic information can be provided, but data transmission volume and processing load increase
Solution Approach 1:
The patent implements partial action by transmitting only the relevant portion of the traffic map to each user terminal. The server determines which checkpoint-associated road sections are relevant to the user's current position and intended destination, then transmits traffic information only for those specific sections. This selective transmission maintains high local accuracy while significantly reducing the volume of data that must be transmitted and processed.
Data Source
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AI summary
The invention relates to a method for delivering road traffic data to at least a first position enabled user terminal of a plurality of position enabled user terminals, each of said position enabled user terminal being embarked on board a vehicle moving within a road infrastructure, said user terminal being connected through a telecommunication network to a road traffic management server. According to the invention, the present method comprises the acts of: ■ receiving (400) at the road traffic management server positions and speed data from the plurality of position enabled user terminals, ■ estimating (401) road traffic data at a plurality of predefined checkpoints belonging to a mesh of redefined checkpoints matching the road infrastructure using the received positions and speed data; ■ producing (404) a road traffic estimated map by associating each redefined checkpoint with its estimated road traffic data; ■ transmitting (405) a portion of the road traffic estimated map to the first position enabled user terminal for subsequent display of said portion.