Vehicle Entry Control Using User Trajectory and Access Point Detection
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Solution Overview
Problem
Existing keyless entry systems for vehicles require additional user interactions such as pressing buttons or touching handles, limiting the convenience of remote access.
Innovation Solution
A vehicle entry system that utilizes user trajectory analysis to automatically unlock doors based on the user's approach trajectory, integrating image capturing devices for facial recognition and trajectory tracking, or UWB and ML technologies for precise location and movement tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If keyless entry systems use remote RF transmitters for automatic door unlocking, then the convenience of remote access is improved, but additional user interactions such as pressing buttons are still required
Solution Approach 1:
The system performs preliminary identification and trajectory tracking of the user before the actual door unlocking action. The trajectory tracking device continuously monitors the user's approach, and the system predicts the intended access point in advance, so that when the user reaches the vicinity, the door is already ready to unlock automatically without requiring any button press or additional interaction from the user.
Solution Approach 2:
The system enables the door locking/unlocking mechanism to serve itself by automatically detecting the authorized user's trajectory and intent. The control signal is generated autonomously based on trajectory analysis, and the door mechanism executes unlocking/locking without external triggering, making the system self-sufficient in the entry operation.
2Extent of automation
If the system automatically unlocks doors based on trajectory analysis, then seamless entry without user input is achieved, but the system must accurately identify and track multiple users
Solution Approach 1:
The system segments the user identification and tracking process into distinct functional modules: a user identification device for recognizing authorized users, a trajectory tracking device for monitoring movement paths, and a control system for generating unlock signals. Each module handles a specific aspect of the automation, improving overall precision through specialized processing.
Solution Approach 2:
The system continuously receives feedback from the trajectory tracking device about the user's position and movement direction. This real-time feedback allows the control system to adjust and refine the identification of the intended access point, ensuring high accuracy in automatic door unlocking even when multiple users are present.
3Ease of operation
If the system tracks user trajectory to determine access points, then automatic unlocking at the correct door is improved, but the system complexity increases
Solution Approach 1:
The trajectory tracking device serves multiple functions: it identifies the user's approach direction, determines the intended access point, tracks multiple users simultaneously, and provides continuous position data for security monitoring. This multi-functionality reduces the need for separate specialized devices, managing system complexity while maintaining ease of operation.
Data Source
AI summary
A system is provided for implementing trajectory analysis entry controls. A trajectory analysis entry control system is implemented in a vehicle, and supports remote and automatic entry control functions for the vehicle. For example the system triggers various automatic entry controls functions, such as remotely unlocking doors and/or a trunk of a vehicle, by tracking and analyzing a user's trajectory of movement while they are approaching the vehicle. A system includes a user identification device to identify whether a user is authorized to access the vehicle, such as a driver. The system also includes a trajectory tracking device that determines a trajectory of the user with respect to the vehicle. As the user's trajectory is determined to be approaching the vehicle, the trajectory tracking device further determines which entry point of the vehicle the user is approaching and automatically engages an automatic unlocking of that access point of the vehicle.