Smartkey-Free Vehicle Control via Multi-Layer Authentication
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Solution Overview
Problem
Conventional smartkey-free vehicle control systems using Bluetooth Low Energy (BLE) communication face security vulnerabilities due to short communication distance and the risk of unauthorized access, as they can be hacked to open or start a vehicle within a certain range.
Innovation Solution
A system and method that incorporates a head unit generating a visual code for registration, a communicating unit with RF and LF antennas for authentication, and a controller that initiates vehicle starting only after successful second authentication, ensuring secure door opening and engine starting functions without a smartkey, utilizing a multi-layered authentication process to prevent unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If BLE communication is used for smartkey-free vehicle control, then convenience is improved (no physical key needed), but security deteriorates (vulnerable to hacking within communication range)
Solution Approach 1:
The authentication process is segmented into multiple independent stages: initial connection authentication, distance verification authentication, and vehicle starting authentication. Each stage uses separate authentication codes and verification mechanisms, preventing a single point of failure and requiring multiple successful authentication steps for unauthorized access
Solution Approach 2:
The system performs preliminary distance verification and authentication checks before allowing vehicle access or starting. The communication unit verifies the user terminal's distance from the vehicle before granting any control functions, and performs additional authentication before enabling the starting function, preventing unauthorized access before it can occur
2Reliability
If NFC is used for vehicle control, then security is improved (direct contact required), but ease of operation deteriorates (user must contact smartphone)
Solution Approach 1:
The system replaces the mechanical contact requirement of NFC with wireless electromagnetic field-based distance verification. The communication unit detects the user terminal's position and distance through wireless signals, eliminating the need for physical contact while maintaining security through multiple authentication layers including distance verification
3Ease of operation
If BLE communication distance is extended, then ease of operation is improved (remote access possible), but security deteriorates (larger hacking range)
Solution Approach 1:
The system dynamically adjusts authentication requirements based on the detected distance between the user terminal and vehicle. When the terminal is within a predetermined distance, the system enables appropriate control functions after successful authentication. This dynamic approach allows flexible access control while maintaining security by requiring verification of actual proximity
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
Enhances security by limiting vehicle starting to only when the user is within a predetermined range and successfully completes authentication, reducing the risk of vehicle seizure and improving overall security in smartkey-free vehicle control systems.
Implementation Method 1
a communicating unit connecting through wireless communication with a user application of a user terminal within a predetermined sensing distance
Data Source
AI summary
A system for smartkey-free vehicle control may include a head unit having predetermined password and generating a scannable visual code by combining information of the vehicle. A user application is installed in a user terminal and is capable for registering the information of the vehicle, and has a remote control function to control the vehicle of which information is registered. A communicating unit connects, though wireless communication, with the user application of the user terminal which is within a predetermined sensing distance, and performs a first and second authentication. A body control module controls the vehicle according to a remote control signal transmitted according to the remote control function of the user application. A start button is formed inside the vehicle and generating a start on signal by a button input and a controller controls a starting of the vehicle.