Vehicle Dock Driver Device Detection via One-Time Key
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Solution Overview
Problem
Vehicle infotainment systems face challenges in determining which nomadic device belongs to the driver, especially in scenarios with multiple users and device switching, leading to difficulties in automatically associating the correct device with the vehicle computing system.
Innovation Solution
A device dock is integrated into the vehicle to securely hold a nomadic device and use location-identifying connections, such as NFC or BLE, to detect the device and request a one-time key from the vehicle computing system, which is then sent back to identify and integrate the device as the driver device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle uses automatic device pairing based on proximity detection, then the ease of operation is improved, but the reliability of driver device identification deteriorates due to inability to distinguish driver device from passenger devices
Solution Approach 1:
The device dock serves as an intermediary component that physically interfaces between the driver's device and the vehicle computing system. It establishes a dedicated communication channel through location-identifying connections, enabling reliable driver device identification by mediating the interaction specifically for devices placed in the driver position.
Solution Approach 2:
The system performs preliminary actions by pre-establishing the device dock's communication channel with the vehicle computing system before the driver enters. When a device is placed in the dock, the one-time key is already ready to be exchanged, enabling rapid and reliable driver device identification without requiring complex real-time discrimination between multiple devices.
2Reliability
If the vehicle computing system monitors all connected devices continuously, then the reliability of driver device detection is improved, but the use of energy deteriorates due to constant monitoring requirements
Solution Approach 1:
The system segments device monitoring into two distinct channels: a dedicated location-identifying connection for the driver's device through the device dock, and general Bluetooth connections for other devices. This segmentation allows the vehicle computing system to focus monitoring resources on the driver device channel, improving detection reliability while reducing overall energy consumption compared to continuous monitoring of all devices.
3Measurement precision
If the vehicle uses multiple detection methods to identify the driver device, then the measurement precision is improved, but the device complexity deteriorates due to multiple connection types and protocols
Solution Approach 1:
The device dock pre-establishes a dedicated location-identifying connection with the vehicle computing system before any nomadic device is introduced. This preliminary setup creates a reserved communication channel that simplifies the overall system architecture by providing a direct, pre-configured path for driver device identification, reducing the need for complex real-time multi-protocol coordination.
Data Source
AI summary
A device dock of a vehicle may receive a one-time key over a data connection between the device dock and a vehicle computing system (VCS), and send the one-time key over a location-identifying connection to a nomadic device placed within proximity to the dock, to cause the nomadic device to send the one-time key to the VCS to integrate with the VCS as a driver device. The VCS may receive, from a nomadic device in a device dock, via a data connection between the VCS and the nomadic device, a one-time key provided from the VCS to the device dock over a data connection between the VCS and the device dock, and responsive to receipt of the one-time key from the nomadic device, integrate the nomadic device with the VCS as a driver device.