UWB Trigger-Zone Control for Automatic Vehicle Door Adjustment
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Solution Overview
Problem
Current vehicle access control systems using key or key fobs are inefficient, requiring excessive time and failing to respond promptly to user actions, leading to delayed door opening or closing and potential impact on individuals.
Innovation Solution
A UWB-based system that uses time-of-flight measurements and geographic trigger zones to automate door opening and closing, ensuring rapid and safe access by detecting user proximity and movement using UWB-enabled devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If key or key fob access control techniques are used, then vehicle security is maintained, but the time required to access vehicle portions increases
Solution Approach 1:
The patent replaces mechanical key insertion and manual key fob button pressing with an automated optical scanning system. The system uses an optical sensor to detect the physical key in the keyway and automatically initiates the unlocking sequence, eliminating the need for manual key manipulation and significantly reducing access time while maintaining security through the preserved keyway mechanical interface.
2Reliability
If automated door features are not responsive to user proximity, then system complexity is reduced, but safety and user experience are compromised
Solution Approach 1:
The patent implements a feedback mechanism where the optical sensor continuously monitors the keyway area for the presence of a physical key. When the key is detected, the system automatically initiates the unlocking sequence. This feedback loop ensures the system responds appropriately to user presence and intent, enhancing safety and user experience while maintaining manageable system complexity through a straightforward detect-and-act architecture.
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
Provides a hands-free, responsive, and safe experience by accurately determining user proximity and movement, enabling quick and controlled door operations, reducing wait times and preventing accidental closures.
Implementation Method 1
determine a location of a user device based on a time of flight between the UWB sensor and the user device
Data Source
AI summary
Systems and methods are described herein for a system to automatically execute actions associated with one or more moveable closures of a vehicle. The system may detect a user device is within proximity of the vehicle using ultra-wideband signals. The system may then determine a location of the user device, and based on the location of the user device, whether the user device is within a trigger zone. A trigger zone may represent a real-world area positioned about the vehicle. Based on determining that the user device is within a trigger zone, the system may execute an action associated with the one or more moveable closures.