Server Apparatus for Lost Mobile Terminal Location Tracking
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Solution Overview
Problem
Existing techniques for searching for lost mobile terminals require the device to have a function to determine if it is lost, which limits their effectiveness if the device lacks this capability.
Innovation Solution
A server apparatus and information processing system that communicate with mobile terminals to register and output identification and position data, even if the terminal cannot determine its lost state, by utilizing multiple communication apparatuses to measure and transmit positions and states of wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile terminal has a function to determine whether it is lost, then the position information can be transmitted to the management server, but the device complexity increases
Solution Approach 1:
The patent introduces a management server as an intermediary that performs the lost terminal determination function externally. Instead of embedding the determination logic in the mobile terminal itself, the terminal simply transmits position information to the server, which then determines whether the terminal is lost by comparing position data over time. This transfers the computational burden and complexity from the terminal to the server.
Solution Approach 2:
The lost terminal determination function is extracted from the mobile terminal and placed in the management server. The terminal's role is reduced to merely transmitting position information, while the complex analysis and determination logic are removed from the terminal and executed remotely on the server.
2Productivity
If multiple communication apparatuses are used to measure and transmit position data, then the searching efficiency for lost terminals is improved, but the system complexity increases
Solution Approach 1:
The patent combines multiple position measurement sources (GPS receiver, base station, access point) into a unified position information transmission system. All these diverse measurement methods are merged into a single coordinated system where position data from any source is transmitted to the management server, which processes them uniformly to determine lost terminal status.
Solution Approach 2:
The management server is designed with universal functionality to handle position information from multiple different communication apparatuses and measurement methods. It can process position data whether obtained via GPS, base station triangulation, or access point positioning, making the system adaptable and efficient without requiring separate processing paths for each measurement type.
Data Source
AI summary
A server apparatus includes: a communication unit that communicates with a first communication apparatus and a second communication apparatus; a registration unit that, upon obtaining identification data of a mobile terminal which has been lost from the first communication apparatus, registers the identification data; and an output unit that, upon obtaining position data and the identification data from the second communication apparatus, outputs the position data when the identification data is registered, the position data indicating a position of the second communication apparatus at the time when the second communication apparatus receives the identification data sent from the mobile terminal.