Smart Key System Using Mobile Movement Pattern Recognition
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Solution Overview
Problem
Smart key systems currently allow unauthorized users to control vehicles by matching smart key information with vehicle identification numbers, leading to potential theft or misuse.
Innovation Solution
A smart key system that recognizes and matches the movement pattern of a mobile terminal using position information from an inertial tri-axis acceleration sensor, allowing the vehicle to be unlocked only when the pattern matches a preset pattern stored in the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If smart key information is matched with vehicle identification number, then vehicle control is enabled, but unauthorized users can control the vehicle through theft or loss
Solution Approach 1:
The system performs preliminary action by capturing and storing the user's movement pattern in advance during a setup phase. This pre-captured biometric data is then used for rapid authentication without requiring complex real-time analysis, thus enhancing security while maintaining system simplicity
Solution Approach 2:
The patent replaces traditional mechanical authentication methods (physical keys, slide switches, gyro sensors) with a software-based movement pattern recognition system. This substitution eliminates the need for complex hardware components while providing more reliable security through unique biometric movement characteristics
2Reliability
If additional components like slide switches and gyro sensors are added to prevent unauthorized access, then security is improved, but device complexity and reduced mobility
Solution Approach 1:
The system extracts the essential security function from complex hardware components and implements it through software-based movement pattern analysis. By removing slide switches, gyro sensors, and other bulky components, the system maintains high security while significantly improving ease of operation and user mobility
Solution Approach 2:
The movement pattern recognition system utilizes the mobile terminal's existing sensors (accelerometer, gyroscope) that are already present in modern smartphones. The system makes these existing components serve the security function, eliminating the need for additional dedicated hardware while maintaining authorization security
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
Prevents unauthorized vehicle control by ensuring that only the authorized user's movement pattern can unlock the vehicle, enhancing security and reducing the need for additional components like slide switches and gyro sensors, thus improving mobility and convenience.
Implementation Method 1
position information generated when a position is moved by manipulation of a user
Data Source
AI summary
Provided is a smart key system using movement pattern recognition of a mobile terminal includes a mobile terminal configured to continuously transmit position information generated when a position is moved according to manipulation of a user, and a control module configured to acquire a movement pattern of the mobile terminal using the position information received from the mobile terminal and unlock a door of a vehicle when the acquired movement pattern is matched with a previously stored preset pattern.