Anonymized Position Data Processing for Road Risk Detection
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Solution Overview
Problem
Existing systems fail to effectively make road users visible to navigation and assistance systems in real-time traffic situations, hindering adaptive responses to dangerous conditions.
Innovation Solution
A method and system that utilize mobile devices to transmit position data and type of transportation, incrementing counter variables for geographic areas and initializing time variables to track road user presence and duration, enabling efficient analysis and warning systems without identifying users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If position data from mobile devices is continuously tracked to make road users visible, then road safety and traffic situation awareness are improved, but user anonymity and data privacy are compromised
Solution Approach 1:
The patent extracts only the essential position data from mobile devices without capturing identifying user information. The system processes location coordinates to determine risk areas while deliberately excluding personal identifiers, thus achieving road safety improvement without compromising user anonymity.
Solution Approach 2:
The system creates anonymized copies of position data that preserve spatial information needed for safety analysis while removing identifying characteristics. These copied position records are processed to generate risk area mappings without containing original user identity information.
2Loss of information
If detailed position data from all mobile devices is processed to identify critical areas, then traffic situation awareness is improved, but computational cost and system complexity increase
Solution Approach 1:
The patent segments the continuous position data stream into discrete position records that are processed independently. By dividing the data processing into manageable units and using counter variables to aggregate information, the system reduces computational complexity while maintaining comprehensive traffic situation awareness.
Solution Approach 2:
The system processes position data with selective precision - using counter variables and time variables to track presence duration without requiring exhaustive analysis of every position detail. This partial processing approach achieves sufficient situational awareness while avoiding excessive computational overhead.
3Loss of time
If real-time position tracking is implemented to warn road users, then response time to dangerous situations is improved, but energy consumption and computational resources increase
Solution Approach 1:
The patent implements periodic position data collection and processing rather than continuous real-time tracking. The server receives position data at intervals and updates risk area determinations periodically, maintaining adequate response time while significantly reducing energy consumption compared to continuous monitoring.
Solution Approach 2:
The system uses the mobile device's existing position determination capabilities (GPS, network location) that already consume energy for navigation purposes. By reusing this existing position data for safety warnings, the system avoids additional energy-consuming tracking mechanisms while maintaining response capability.
Data Source
AI summary
A method, comprising: receiving position data from a mobile device; incrementing a counter variable, said counter variable associated with a predefined geographic area that includes a position of the position data, and initializing a time variable, said time variable set to a predefined value and decremented continuously; and decrementing said counter variable in response to expiration of said time variable.