Keyless Entry System Using Multi-Dimensional Sensor Fusion
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Solution Overview
Problem
Conventional keyless entry systems pose difficulties for elderly persons and individuals with limited mobility, as they require manual triggering of sensors to unlock car doors, which can be hazardous.
Innovation Solution
A method utilizing a processor in the central console of a vehicle, equipped with distance sensors and multi-dimensional sensors, to detect and interpret object actions, allowing for automatic unlocking and other vehicle functions without manual intervention, using a keyless entry system comprising an electronic car key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual sensor triggering is required for keyless entry, then system reliability is improved, but ease of operation deteriorates for elderly persons and individuals with limited mobility
Solution Approach 1:
The system performs automatic identification and authentication without requiring manual sensor triggering. The electronic car key automatically communicates with the vehicle's main controller, and the system autonomously completes the keyless entry authorization check, eliminating the need for users to manually activate sensors.
Solution Approach 2:
The patent replaces manual mechanical triggering actions with automatic wireless communication between the electronic car key and the vehicle's main controller. The authentication process is performed through electronic signal exchange rather than mechanical sensor activation, making the system accessible to users with limited mobility.
2Ease of operation
If automatic keyless entry is implemented, then ease of operation is improved, but security deteriorates due to unauthorized access risks
Solution Approach 1:
The main controller continuously monitors and verifies signals from the electronic car key through automatic keyless entry authorization checks. The system establishes a feedback loop where authentication status is constantly verified, and the door lock state is controlled based on authenticated signals, ensuring security while maintaining automatic operation.
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 safe and convenient interactions between users and vehicles, particularly for those with mobility issues, by automatically detecting and responding to user actions without the need for manual sensor triggering, enhancing accessibility and safety.
Implementation Method 1
at least one ultrasonic sensor that is disposed below a car door of the automobile... after the user puts out a foot to let the ultrasonic sensor detect an object (i.e., the foot)
Data Source
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AI summary
A method for achieving interactions between user and automobile is disclosed. Specifically, the automobile is equipped with multiple distance sensors and multiple multi-dimensional sensors, and has a processor that is constituted to a keyless entry system with an electronic car key. During conducting the method, the distance sensors detect an approaching object, and the multi-dimensional sensors collect multi-dimensional parameters of the approaching object, such that the processor is able to judge an object action of the approaching object based on the multi-dimensional parameters. As a result, in case of the object action is determined to correspond with one of reference object actions, the automobile is controlled by the processor so as to conduct a specific action, for example, unlocking a door lock, opening a car door, adjusting an illumination of at least one car headlight, and starting automobile engine.