Vehicle Security System Using GPS Intermediary to Block Remote Manipulation
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Solution Overview
Problem
Vehicles are vulnerable to theft despite the use of smart keys and encryption, as signals can be manipulated, leading to unauthorized access and power consumption issues.
Innovation Solution
A vehicle security system that utilizes GPS information from a mobile communication terminal to activate a security mode, blocking remote manipulation attempts by near-field communication terminals, and minimizing power consumption by cutting power to unnecessary components when the vehicle is moved away from its registered location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If smart key with encryption is used for vehicle access, then convenience of operation is improved, but vehicle security against theft deteriorates due to signal amplification attacks
Solution Approach 1:
The patent introduces a mobile communication terminal as an intermediary between the vehicle and the near-field communication terminal. This intermediary verifies the legitimacy of remote manipulation requests by checking whether the mobile terminal is within a predetermined distance from the vehicle using GPS information, thereby preventing unauthorized access while maintaining convenient operation through the smart key system
2Reliability
If security mode is activated to block remote manipulation, then vehicle security is improved, but power consumption increases due to continuous monitoring
Solution Approach 1:
The patent implements a dynamic security mode that adapts its operation based on the vehicle's state. When the vehicle is determined to be stolen (mobile terminal moves beyond predetermined distance), the security mode activates to block remote manipulation and consume minimal power. When the vehicle is not stolen, the security mode deactivates to reduce power consumption, thus balancing security needs with energy efficiency
3Reliability
If continuous monitoring of vehicle location is performed, then detection of theft attempt is improved, but power consumption deteriorates
Solution Approach 1:
The patent employs periodic monitoring instead of continuous monitoring. The system periodically checks the location of the mobile communication terminal relative to the vehicle using GPS information. This periodic action maintains effective theft detection capability while significantly reducing power consumption compared to continuous monitoring, as the monitoring is activated only when needed (when vehicle power is switched off and security mode is determined)
Data Source
AI summary
A vehicle security system may include: a mobile communication terminal; and a vehicle configured to transmit vehicle global positioning system (GPS) information to the mobile communication terminal when power of the vehicle is switched off, activate a security mode when a remote movement notification is received from the mobile communication terminal, and block remote vehicle manipulation via a near-field communication terminal when the security mode is activated. The mobile communication terminal is registered with the vehicle and is configured to determine a location of the vehicle based on the vehicle GPS information, and transmit the remote movement notification to the vehicle when the mobile communication terminal moves beyond a predetermined distance from the location of the vehicle.