Visible Light Communication Security via Position Verification
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Solution Overview
Problem
Conventional visible light communication systems lack security measures for ID information transmitted through illumination light, making it vulnerable to unauthorized access.
Innovation Solution
A visible light communication system that includes a lighting device transmitting unique ID information, a server managing service information, and a receiving terminal acquiring and verifying positional information to determine the legitimacy of the ID information before providing service information, thereby enhancing security by only allowing access from the correct location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ID information is transmitted through visible light communication without encryption, then communication simplicity is maintained, but security of ID information deteriorates
Solution Approach 1:
The patent introduces the server as an intermediary that verifies ID information before providing service information. The server receives ID information from the receiving terminal, validates it against stored lighting apparatus data, and only provides service information when verification succeeds. This mediator approach maintains communication simplicity while adding security through centralized verification.
Solution Approach 2:
The patent implements preliminary verification of ID information by the server before service information is provided. The server预先 stores translation data tables containing lighting apparatus ID information and positional data, and performs validation checks before granting access to service information. This preliminary action prevents unauthorized access while maintaining ease of use for legitimate users.
2Adaptability or versatility
If service information is provided to any terminal with ID information, then accessibility is improved, but security against unauthorized access deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the server verifies ID information and provides service information only when validation succeeds. The system checks whether the received ID information matches stored lighting apparatus data and whether positional information is valid, providing service information as feedback only when all checks pass. This feedback loop ensures accessibility for authorized users while blocking unauthorized access.
Solution Approach 2:
The patent changes the verification parameters from simple ID matching to multi-parameter validation including ID information matching and positional information verification. The server checks both the ID information against stored data and validates positional information to determine if the receiving terminal is at the correct location. This parameter change maintains accessibility for legitimate users while preventing unauthorized access.
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
The system effectively improves security by ensuring that ID information is only accessed from the correct location, preventing unauthorized access and enhancing the protection of positional and service information.
Implementation Method 1
transmit the ID information with illumination light as a communication medium
Implementation Method 2
receive the illumination light emitted from the lighting device to acquire the ID information
Data Source
AI summary
A server is configured to manage second positional information, which shows a location of the lighting device, so that the second positional information is associated with the ID information of the lighting device. The server is configured to determine whether or not the ID information received from the receiving terminal is justifiable based on the second positional information, which corresponds to the ID information received from the receiving terminal, and the first positional information, which is received from the receiving terminal. The server is configured to reply, to the receiving terminal, the service information corresponding to the ID information received from the receiving terminal when determining that the ID information received from the receiving terminal is justifiable. The server is configured not to reply the service information to the receiving terminal when determining that the ID information received from the receiving terminal is not justifiable.