Terminal Communication Control via Charging Position Verification
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Solution Overview
Problem
Existing communication technologies fail to prevent unauthorized use of terminal devices, leading to potential information leakage when stolen or lost, as they do not adequately restrict access even when the device is charged by an unauthorized user.
Innovation Solution
A management device that receives position information from a terminal device and determines if it is within a predetermined charging area, allowing authorized users to communicate while blocking unauthorized access by requesting identity verification if the device is not in the recognized area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If charging is permitted only at preset positions, then unauthorized use is prevented, but information leakage cannot be sufficiently prevented when device is stolen or lost
Solution Approach 1:
The system performs preliminary actions by recording charging position information in advance and establishing a charging position database before theft occurs. When the device is stolen, the system can compare current position against the pre-recorded charging positions to detect abnormal usage patterns and prevent information leakage proactively rather than reactively.
Solution Approach 2:
The system implements feedback mechanisms by continuously monitoring the terminal device's position and comparing it against recorded charging positions. When discrepancies are detected (indicating potential theft), the system provides feedback through notifications to the user and can trigger countermeasures such as freezing the SIM card or blocking communication functions to prevent information leakage.
2Ease of operation
If communication is allowed without verification, then ease of operation is maintained, but security against unauthorized access is compromised
Solution Approach 1:
The system performs preliminary verification by recording charging position information in advance and building a database of authorized locations. This preliminary action enables the system to automatically verify whether the device is being used at an authorized location before allowing communication, maintaining ease of operation for legitimate users while ensuring security.
Solution Approach 2:
The system introduces an intermediary verification mechanism that acts as a mediator between the terminal device and the network. The management device checks whether the current charging position matches recorded positions and only allows communication if verification succeeds. This intermediary layer maintains ease of operation for authorized users while blocking unauthorized access without requiring users to manually verify their identity each time.
Data Source
AI summary
A communication interface receives position information from a terminal device being charged. A controller determines that the terminal device is in a first state when the position information received in the communication interface is included in a past charging area and determines that the terminal device is in a second state when the position information received in the communication interface is not included in the past charging area. Upon receiving a signal addressed to the terminal device, the communication interface transmits the signal to the terminal device when the terminal device is in the first state. The communication interface stops the transmission of the signal to the terminal device when the terminal device is in the second state.