Vehicle Smart Key System Zone-Based Access Control
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Solution Overview
Problem
Existing vehicle smart key systems lack the ability to activate vehicle functions in a stepwise manner based on the proximity of the smart key to the vehicle, failing to provide nuanced access rights and state information effectively.
Innovation Solution
A vehicle smart key system that includes a smart key and a control device capable of wireless communication, where the smart key control device recognizes the smart key's position and activates functions in a stepwise manner, assigning access rights based on zones, allowing for multimedia and driving system functionalities, and adjusting warning intensities for abnormal vehicle states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle functions are activated based on smart key position zones, then user control and security are improved, but system complexity increases
Solution Approach 1:
The system divides the spatial area around the vehicle into multiple zones (first zone, second zone, third zone) based on distance from the vehicle. Each zone triggers different access rights and vehicle function activations. This segmentation allows nuanced security control where closer proximity grants more privileges, resolving the contradiction by implementing graduated access levels rather than binary authentication.
Solution Approach 2:
The system pre-defines multiple zones and associates specific access rights with each zone before the user approaches the vehicle. When the smart key enters a zone, the corresponding access rights are automatically activated without requiring explicit user authentication actions. This preliminary configuration reduces real-time processing complexity while maintaining security.
2Ease of operation
If stepwise function activation is implemented, then user experience is improved, but energy consumption increases
Solution Approach 1:
The system periodically evaluates the smart key's position relative to the vehicle and activates or deactivates functions based on which zone the key is currently in. Rather than continuously activating all functions, the system switches between different function sets periodically as the user moves through zones, improving user experience while managing energy consumption through on-demand activation.
Solution Approach 2:
The system dynamically adjusts which vehicle functions are activated based on the real-time position of the smart key. When the key is in the first zone, only basic functions are active; in the second zone, additional functions activate; in the third zone, full access is granted. This dynamic adaptation provides an enhanced user experience while consuming energy only when necessary.
3Adaptability or versatility
If multiple access rights are assigned based on zones, then functionality is improved, but information management complexity increases
Solution Approach 1:
The system assigns different access rights and information visibility based on the local condition of which zone the smart key is in. Each zone has its own set of permitted functions and information display rules. This local quality approach allows the system to manage complex information by only presenting relevant information for the current zone, reducing overall information management complexity while maintaining high functionality.
Solution Approach 2:
The system pre-configures which information and functions are associated with each zone. Before the user even enters a zone, the system has prepared the appropriate access rights and information sets. This preliminary organization simplifies information management by structuring data according to spatial zones rather than requiring complex real-time decisions about what information to present.
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 seamless stepwise activation of vehicle functions and access rights, enhancing user control and awareness of vehicle states through visual and auditory feedback, improving user experience and security.
Implementation Method 1
a smart key and a smart key control device mounted on a vehicle to recognize a position of the smart key through wireless communication with the smart key
Data Source
AI summary
A vehicle smart key system may include a smart key, and a smart key control device mounted on a vehicle that recognizes a position of the smart key through wireless communication with the smart key, activates vehicle functions in a stepwise manner based on the position of the smart key, and determines whether to assign a vehicle access right to the smart key.