Population Estimation Using Wireless Terminal Positional Data
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Solution Overview
Problem
Existing methods lack accuracy in estimating population or population changes in specific areas using the number of communication terminals present.
Innovation Solution
A population estimation system that utilizes positional information from communication terminals to estimate population or population movement by deriving a relation parameter between the number of wireless terminals and population, allowing for accurate population estimation in arbitrary geographic areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing methods are used to estimate population based on facility survey results or communication terminal identification, then population estimation can be performed, but the accuracy of population estimation in specific areas is insufficient
Solution Approach 1:
The patent changes the parameter basis from facility survey results or simple terminal identification to actual positional information from communication terminals. By using latitude and longitude coordinates to determine terminal presence in specific areas, the estimation accuracy is significantly improved while maintaining reliability through direct spatial correlation between terminals and geographic locations.
Solution Approach 2:
The patent replaces traditional mechanical survey methods and facility-based estimation with an information-based system using communication terminal positional data. This substitution enables more accurate and real-time population estimation by leveraging the ubiquity and positioning capability of modern communication terminals rather than relying on periodic facility surveys.
2Productivity
If the number of communication terminals is used to estimate population, then population change can be identified, but high accuracy estimation in particular areas cannot be achieved
Solution Approach 1:
The patent segments the population estimation into specific geographic areas using positional information. By dividing the estimation into area-specific components based on terminal locations, it achieves both population change identification and high accuracy in particular areas simultaneously, rather than providing only aggregate estimates.
Solution Approach 2:
The patent introduces positional information as an intermediary between communication terminals and population estimation. This intermediary enables precise area-specific estimation by correlating terminal positions with geographic boundaries, allowing accurate population counting in particular areas while maintaining overall productivity in identifying population changes.
Data Source
AI summary
A log information obtaining unit which obtains log information; a population information obtaining unit which obtains local population information indicating a population of a local area; a first terminal extraction unit which extracts, based on the log information, a wireless terminal present in the local area in a particular time from among the one or more wireless terminals; a relation parameter deriving unit which derives a relation parameter representing a relation between the number of wireless terminals and the population based on a population of the local area indicated by the local population information and the number of wireless terminals extracted by the first terminal extraction unit; and an estimated value deriving unit which derives an estimated population value from the number of wireless terminals by using the relation parameter are comprised.