Movement Mapping via Signal Filtering and Anonymization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing displacement mapping systems require specific hardware or software on mobile devices, interfere with communication signals, and do not ensure user anonymity or data security, making them complex and inefficient for tracking movements in defined spaces.
Innovation Solution
A method and system that obtain and filter transmission power data from communication terminals within a mapped space using a network of sensors, calculate movement data without requiring additional device interaction, and ensure anonymity through data anonymization, allowing for simple and secure displacement mapping without specific device adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specific hardware or software is added to mobile devices for tracking, then movement tracking capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent introduces a base station as an intermediary device that performs the complex signal processing and position calculation functions. Instead of adding complexity to mobile devices, the base station acts as a mediator that receives signals from terminals and computes their positions, thereby improving tracking capability while keeping terminal devices simple
Solution Approach 2:
The patent replaces the need for mechanical or electronic position calculation hardware in mobile devices with a signal processing system based on electromagnetic wave propagation characteristics. By using signal strength and phase information from existing communication signals, the system substitutes complex positioning hardware with a simpler signal analysis approach
2Reliability
If transmission signals are used for position calculation, then movement tracking is enabled, but communication interference occurs
Solution Approach 1:
The patent makes the communication signal serve multiple functions simultaneously: it acts as both the data transmission carrier and the positioning reference signal. By extracting position information from existing communication signals without requiring separate positioning transmissions, the system enables movement tracking while avoiding additional communication interference
Solution Approach 2:
The communication signal itself provides the positioning function without requiring external assistance or additional signals. The terminal's own transmission signal is used by the base station to calculate its position, making the system self-sufficient and avoiding interference from complementary positioning signals
3Measurement precision
If identifier transmission is implemented for position determination, then location accuracy is improved, but user privacy and data security are compromised
Solution Approach 1:
The patent extracts only the necessary signal characteristics (strength and phase) for position calculation while deliberately excluding or anonymizing terminal identifiers from the position data stored and processed by the system. This allows position determination to proceed with sufficient accuracy while removing personally identifiable information that would compromise user privacy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient and anonymous tracking of terminal movements within a space by filtering out irrelevant data and calculating movement paths using transmission power signals, providing a cost-effective and user-friendly solution for applications like sales optimization and crowd analysis.
Implementation Method 1
obtain data representative of emission powers of at least one data transmission signal within said space to be mapped
Data Source
Figure 1
Figure 2a~2c
Figure 3~4
AI summary
The invention relates to a method for determining data representative of the movement of a communication terminal, called a particle, within a predetermined geographical space, called the space to be mapped. According to the invention, such a method comprises: - a phase of obtaining data representative of the transmission powers of at least one data transmission signal within said space to be mapped, delivering a set of captured data; - a phase of filtering the data of said set of captured data according to at least one predetermined filtering parameter, delivering a set of filtered data; - a phase of calculating, using said set of filtered data, data representative of at least one movement made by said particle within said space to be mapped.