People-flow analysis apparatus noise cleansing and trip data generation
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Solution Overview
Problem
Conventional people-flow distribution systems compute inaccurate values if the people-flow model obtained from hypothetical data is inappropriate, leading to unreliable analysis.
Innovation Solution
A people-flow analysis apparatus that reads location information from mobile terminals, performs cleansing processing to eliminate noise, generates trip data, determines means of transportation, and calculates scale-up factors to estimate accurate people-flow data by aggregating actual observed location information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional people-flow models use hypothetical data, then the system can operate without actual location information, but the computed people-flow distribution values become inaccurate
Solution Approach 1:
The patent extracts and removes noise components from raw location information through cleansing processing. By separating useful location data from noisy data, the system achieves accurate people-flow distribution computation without relying on hypothetical models, directly resolving the accuracy-reliability contradiction
Solution Approach 2:
The patent performs preliminary cleansing processing on location information before it is used for people-flow analysis. By pre-processing and filtering noise from location data in advance, the system ensures high-quality input data for accurate people-flow distribution computation, eliminating the need for hypothetical data
2Measurement precision
If the system processes raw location information without cleansing, then processing is simpler and faster, but noise in the data reduces measurement accuracy
Solution Approach 1:
The cleansing processing extracts and removes noise components from raw location information while preserving useful data. This selective extraction approach improves measurement precision without requiring complete reprocessing of all data, balancing accuracy with processing efficiency
Solution Approach 2:
The patent applies cleansing processing selectively to remove only the noisy portions of location information rather than completely reprocessing all data. This partial action approach achieves necessary accuracy improvement without excessive processing complexity
Data Source
AI summary
An apparatus incudes processing circuitry configured to: read, along with time information, location information included in radio waves received by a positioning apparatus from multiple mobile terminals; perform cleansing processing for thinning out, according to a predetermined rule, the location information received by the positioning apparatus; generate, for the cleansed location information, trip data indicating travel paths of users carrying the mobile terminals; and determine, for the generated trip data, means of transportation of the users.