Mobile Phone Vehicle Control via Passive NFC and Bluetooth
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Solution Overview
Problem
Existing vehicle control methods require user interaction with a mobile device interface to perform functions like unlocking and starting a vehicle, which can be inconvenient and may compromise security, especially when multiple vehicles are involved.
Innovation Solution
A vehicle control method using a mobile terminal that establishes a short-range communication connection with a vehicle's passive NFC apparatus, allowing control information to be generated and sent without user interface interaction, enhancing user experience and security by eliminating the need for active NFC in the vehicle and using encrypted session keys.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a mobile phone establishes a Bluetooth connection and sends instructions through a user interface, then vehicle control functions can be implemented, but user experience needs to be enhanced and security concerns arise when multiple vehicles are involved
Solution Approach 1:
The system performs preliminary actions by establishing Bluetooth connection and reading vehicle information from NFC tags before the actual control operation. The mobile terminal reads vehicle identification information in advance, stores it locally, and uses it for subsequent control operations without requiring user interface interaction, thus improving both ease of operation and security
Solution Approach 2:
The patent introduces an intermediary mechanism using NFC tags as passive information carriers and Bluetooth as the primary communication channel. The NFC tag serves as an intermediary to transfer vehicle identification information without requiring active communication or user interaction, while Bluetooth acts as an intermediary for secure control instruction transmission, resolving the contradiction between ease of operation and security
2Adaptability or versatility
If an active NFC apparatus is installed in the vehicle, then NFC-based control functions can be achieved, but vehicle costs increase and system reliability decreases
Solution Approach 1:
The patent inverts the traditional NFC architecture by making the mobile terminal the active NFC device and the vehicle's NFC tag a passive information carrier. Instead of requiring the vehicle to have an active NFC apparatus for bidirectional communication, the system uses the mobile terminal's active NFC to read information from passive NFC tags on the vehicle, thereby reducing vehicle system complexity while maintaining NFC control functionality
Solution Approach 2:
The patent employs inexpensive passive NFC tags instead of costly active NFC apparatus in the vehicle. These passive NFC tags serve as simple information storage carriers that can be easily replaced or updated, reducing both vehicle manufacturing costs and system complexity while still enabling versatile NFC-based control functions
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, secure vehicle control without user intervention, reducing costs and improving reliability by eliminating the need for active NFC in vehicles and enhancing security through encrypted communication.
Implementation Method 1
An NFC module of the mobile phone emits an electromagnetic wave to stimulate the NFC tag to work, receives a signal transmitted by the NFC tag
Data Source
AI summary
This application provides a vehicle control method. The method Can include a mobile terminal that establishes a short-range communication connection to a vehicle. The mobile terminal reads vehicle information from a passive NFC apparatus in the vehicle. The mobile terminal generates control information based on the vehicle information. The mobile terminal sends the control information to the vehicle by using the short-range communication connection. The passive NFC apparatus is, for example, an NFC tag, and the mobile terminal is, for example, a mobile phone. In a process of controlling the vehicle, the mobile phone may be in a screen-off state throughout the process, and the user does not need to perform an operation in an interface of the mobile phone, thereby enhancing the user's experience.