Vehicle Communication Architecture for Distance-Based Authentication
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Solution Overview
Problem
Conventional communication systems installed in vehicles primarily focus on ID verification through wireless communication, lacking the capability to perform distance measurement communication without significant design modifications.
Innovation Solution
A communication system that performs first communication (ID verification) and second communication (distance measurement) through wireless connections between a terminal and a communication peer, utilizing a master communication device connected to a controller and slave communication devices for distance measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If distance measurement communication is added to a conventional communication system, then the system can perform both ID verification and distance measurement, but the device complexity and design modifications increase significantly
Solution Approach 1:
The communication system is divided into separate communication devices, each dedicated to specific communication types (ID verification or distance measurement). This segmentation allows the system to perform multiple communication functions without requiring major design changes to the overall system architecture, as each device operates independently with its specialized function.
Solution Approach 2:
The communication devices are designed to support multiple communication types through a universal interface structure. By creating devices that can handle different communication protocols (first communication for ID verification and second communication for distance measurement) through standardized connections, the system achieves multi-functionality without significant design modifications.
2Reliability
If multiple communication types are integrated into a single communication device, then the device complexity increases, but if separate devices are used, then the system complexity increases
Solution Approach 1:
The system separates communication functions into distinct devices - one for ID verification and another for distance measurement. This segmentation improves reliability by ensuring that each communication type is handled by a specialized device, preventing interference between different communication protocols while maintaining clear functional boundaries.
Solution Approach 2:
A controller acts as an intermediary between the separate communication devices and the authentication system. The controller coordinates the operations of different communication devices, managing the flow of information and coordinating authentication processes, thereby maintaining system reliability without requiring the communication devices themselves to be complex multi-functional units.
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
Enables communication systems to perform distance measurement without major design changes, enhancing security by requiring both ID verification and distance measurement for authentication, thereby preventing unauthorized access.
Implementation Method 1
performs first communication and second communication, which differs from the first communication, through wireless connection between a terminal and a communication peer
Data Source
AI summary
A master communication device causes a slave communication device connected to the master communication device to perform a distance measurement communication for measuring a distance between a terminal and a vehicle that wirelessly communicates with the terminal. The master communication device notifies a controller connected to the master communication device of a first result of the distance measurement communication performed by the slave communication device. The master communication device further notifies the controller of a second result of the distance measurement communication performed by the master communication device. The vehicle is permitted to be actuated in response to any one of the first result or the second result indicating that the distance is valid.