Vehicle Route Data Transmission with Privacy Protection
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Solution Overview
Problem
Existing vehicle-to-X communication systems lack effective privacy measures for users when transmitting route data to central databases, as captured route properties can be used to create user profiles, compromising user privacy.
Innovation Solution
A method where route data is captured by vehicle sensors and stored securely, with delayed transmission outside a predetermined radius or time interval, using intermediate vehicles for data forwarding, and encryption to protect user privacy, allowing users to control data dissemination and prevent profile reconstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If route data is transmitted immediately to central database, then data utility and timeliness are improved, but user privacy is compromised due to profile reconstruction risk
Solution Approach 1:
The patent applies preliminary action by storing route data locally in the vehicle's memory before transmission occurs. Data is captured by sensors, stored with metadata (time, location, vehicle ID) in a secure memory area, and only transmitted after the vehicle has left the capture location. This preliminary storage step prevents immediate transmission that would compromise privacy while ensuring data is ready for timely transmission when conditions are safe.
Solution Approach 2:
The patent uses the vehicle itself as an intermediary between data capture and central database storage. Instead of direct transmission, the vehicle's memory system acts as a buffer and anonymization layer. The data is stored locally, potentially aggregated with other data, and transmitted only when the vehicle is sufficiently distant from the capture location, thus mediating between immediate data utility and long-term privacy protection.
2Object-affected harmful factors
If route data is stored securely in vehicle memory, then user privacy is protected, but data transmission delay increases
Solution Approach 1:
The patent applies dynamics by making the transmission timing adaptive rather than fixed. The system dynamically determines when to transmit data based on whether the vehicle has left the capture location and potentially other factors. This dynamic approach balances privacy protection (by ensuring sufficient time/distance has passed) with data utility (by transmitting as soon as safe conditions are met).
Solution Approach 2:
The patent maintains continuous data capture and storage while enabling间断性 transmission. The useful action of data collection continues uninterrupted during the vehicle's operation, with sensors continuously capturing route properties. The transmission occurs in continuous cycles - data is stored, conditions are checked, and transmission occurs when appropriate, ensuring both privacy protection and eventual data delivery without permanent delay.
3Object-affected harmful factors
If data is transmitted after leaving predetermined radius, then privacy protection is improved, but data freshness is reduced
Solution Approach 1:
The patent changes the transmission parameter from time-based to location-based triggering. Instead of transmitting after a fixed time interval, the system transmits when a spatial condition is met - specifically when the vehicle has left the predetermined radius around the capture location. This parameter change allows privacy protection (by ensuring spatial separation) while minimizing delay (by transmitting as soon as the spatial condition is satisfied).
Data Source
AI summary
Transmitting route data captured by a traveling vehicle to a remote database includes capturing route data records having route data and a location and time of capture. The captured route data records are stored in a memory of the vehicle and are sent to the database. A route data message is sent at a time randomly selected within a first time interval after the capture of the route data and/or when the vehicle has left a predetermined radius around the location of capture of the route data. The messages can be sent directly to the database, or via a minimum number of intermediate receivers posing as the origin of the data to the respective receiver of a transmission from them.