Vehicle Data Collection With Adjustable Location Privacy
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Solution Overview
Problem
Existing information collection systems for hybrid and electric vehicles face challenges in protecting user privacy by collecting excessively specific driving history data, which can compromise user privacy due to high accuracy position information.
Innovation Solution
An information collection system that transmits vehicle state information while considering varying disclosure ranges of position information, using alternative position information and disclosure information to control the level of address disclosure, allowing users to select the extent of their location data shared.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high accuracy position information is collected, then the precision of vehicle location data is improved, but user privacy protection deteriorates
Solution Approach 1:
The patent changes the parameter of position information from high-precision coordinates to low-precision alternative position information (such as postal codes or broader geographic areas). This parameter transformation maintains the utility of location data for analyzing vehicle usage patterns while significantly reducing the ability to identify specific users or their exact locations, thereby protecting privacy.
Solution Approach 2:
The patent extracts only the necessary portion of position information required for analyzing vehicle usage states, separating it from excessive detailed location data. By collecting alternative position information that is sufficient for usage analysis but insufficient for identifying specific users, the system extracts the essential functional value while removing the privacy-intrusive elements.
2Measurement precision
If detailed driving history is collected, then the accuracy of power storage device deterioration estimation is improved, but the quantity of personal information increases
Solution Approach 1:
The patent extracts only the essential usage state information needed for deterioration estimation, such as charge-discharge cycles, usage intensity, and operational conditions, while excluding unnecessary personal identifiers and excessive location details. This extraction process reduces the volume of personal information collected while maintaining the accuracy required for power storage device deterioration analysis.
Solution Approach 2:
The patent transforms detailed driving history data into aggregated usage state parameters that capture the essential characteristics needed for deterioration estimation. By converting specific trip details into generalized usage metrics (such as total charge-discharge cycles, average usage intensity), the system maintains analytical accuracy while reducing the quantity of personal information stored and processed.
Data Source
AI summary
An information collection system corrects vehicle state information of each of a plurality of vehicles. Identification information and the vehicle state information is transmitted by a first transmitter, the identification information being information based on which a target vehicle is specified from among the vehicles. Disclosure position information and the identification information are transmitted by a second transmitter, the disclosure position information being set as position information on the target vehicle based on (i) alternative position information indicating a position of the target vehicle in an alternative manner and (ii) disclosure information indicating a disclosure range to disclose the alternative position information. The information collection system includes: an acquisition portion configured to acquire the identification information, the vehicle state information, and the disclosure position information; and a computing device configured to associate the vehicle state information with the disclosure position information based on the identification information.