Vehicle-Mobile Unlocking Link With Inverted Scanning Roles
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Solution Overview
Problem
Existing vehicle-mobile device systems face high energy consumption due to the mobile device needing to constantly scan for a connection, limiting battery size and practicality, especially for small devices like smart fobs.
Innovation Solution
Reversing the roles of the vehicle and mobile device transceivers, with the vehicle scanning for available connections and the mobile device advertising its availability, reducing the need for energy-intensive scanning by the mobile device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile device performs scanning to search for connection partners, then the wireless connection can be established, but the energy consumption of the mobile device increases significantly
Solution Approach 1:
The patent inverts the traditional scanning role by making the vehicle (stationary object) perform scanning instead of the mobile device (moving object). The vehicle's transceiver actively scans for mobile devices and initiates connection requests, while the mobile device only needs to broadcast its availability. This role reversal dramatically reduces the energy burden on the mobile device while maintaining reliable connection establishment.
2Reliability
If the mobile device performs continuous scanning, then connection reliability is improved, but the battery life decreases
Solution Approach 1:
The patent swaps the scanning and advertising roles between the vehicle and mobile device. The vehicle performs continuous scanning to maintain reliable connections, while the mobile device only needs to periodically advertise its availability. This inversion allows connection reliability to be maintained through the vehicle's persistent scanning activity without requiring the mobile device to consume excessive battery energy.
3Volume of moving object
If the mobile device is made smaller to reduce portability issues, then the device size decreases, but the battery capacity is limited
Solution Approach 1:
The patent enables small mobile devices with limited battery capacity to function effectively by inverting the energy-intensive scanning task onto the vehicle. The mobile device only needs to perform low-power advertising operations, which can be sustained by a small battery, while the vehicle handles the continuous scanning that would otherwise require significant energy reserves.
Data Source
AI summary
A system (1) has a vehicle (2) and a mobile device (3) to unlock the vehicle (2) and/or enable a function of the vehicle (2). The vehicle (2) has at least one first transceiver (A) that is designed to transmit and receive data wirelessly. The mobile device (3) has at least one second transceiver (B) that is designed to transmit and receive data wirelessly. The first transceiver (A) and the second transceiver (B) are designed to establish a wireless connection with one another as connection partners that enables data exchange. The first transceiver (A) is designed to check an environment of the vehicle (2) for available connection partners. The second transceiver (B) is designed to signal its availability as a connection partner.