Moving-Body Position Output With Condition-Based Anonymity
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Solution Overview
Problem
Existing position information transmission methods fail to ensure anonymity of moving bodies, particularly vehicles, as they may reveal the current position, compromising individual privacy.
Innovation Solution
A method and system that delays the output of position information to a second timing after a predetermined condition is met, such as a distance or time threshold, ensuring anonymity by not revealing the current position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If position information is transmitted immediately after measurement, then real-time location tracking is achieved, but anonymity of the moving body is compromised
Solution Approach 1:
The system performs preliminary action by delaying the output of position information until a predetermined condition is satisfied. The position information is acquired at a first timing, but the output is deferred to a second timing after a predetermined parameter (such as movement distance or elapsed time) has changed, thereby preventing immediate disclosure of location data and preserving anonymity.
Solution Approach 2:
The system implements periodic action by establishing a timing mechanism where position information is output only after a predetermined condition is met. This creates a periodic delay between position acquisition and information output, ensuring that location data is not disclosed immediately but rather after a specific time or movement threshold has been satisfied.
2Object-affected harmful factors
If position information is delayed to ensure anonymity, then privacy protection is improved, but real-time location awareness is reduced
Solution Approach 1:
The system performs preliminary action by delaying the output of position information until a predetermined condition is satisfied. The position information is acquired at a first timing, but the output is deferred to a second timing after a predetermined parameter (such as movement distance or elapsed time) has changed, thereby preventing immediate disclosure of location data and preserving anonymity.
Solution Approach 2:
The system applies parameter changes by using different predetermined parameters (such as movement distance threshold or elapsed time threshold) to control the timing of position information output. By changing these parameters, the system can adjust the balance between anonymity protection and time delay, allowing flexible control over when location data is disclosed.
3Object-affected harmful factors
If statistical processing is performed to anonymize position data, then individual identification is prevented, but individual characteristics are lost
Solution Approach 1:
The system extracts the harmful element (immediate position disclosure) from the data transmission process by implementing a timing mechanism that delays output until a predetermined condition is satisfied. This extraction approach prevents individual identification without requiring statistical processing, thereby preserving individual characteristics and avoiding information loss.
Solution Approach 2:
The system uses a timing-based copying mechanism where position information is copied from the acquired state to the output state only after a predetermined condition is met. This copying approach maintains the original position data's integrity and individual characteristics while preventing immediate disclosure that could lead to identification.
4Measurement precision
If current position is continuously notified, then location tracking accuracy is maintained, but vulnerability to unauthorized access increases
Solution Approach 1:
The system performs preliminary action by delaying the output of position information until a predetermined condition is satisfied. The position information is acquired at a first timing, but the output is deferred to a second timing after a predetermined parameter (such as movement distance or elapsed time) has changed, thereby preventing immediate disclosure of location data and preserving anonymity.
Solution Approach 2:
The system applies the skipping principle by introducing a time skip or condition-based gap between position acquisition and information output. This skipping mechanism prevents continuous immediate disclosure, creating a buffer that reduces vulnerability to unauthorized access while maintaining location tracking capability through periodic updates.
Data Source
AI summary
Provided is a position information output method of causing a computer to acquire position information, which is information indicating a position of the moving body, indicating a position which is measured by a position measurement device mounted on a moving body at a first timing via a network from the moving body including at least one of a vehicle and a terminal device owned by an occupant of the vehicle, and output information, which indicates that the moving body is present at a position indicated by the position information, from an output part after a second timing when a predetermined parameter indicating a change from a state at the first timing has satisfied a predetermined condition.