In-Vehicle Computing Device Pre-Boot Control via Mobile Detection
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Solution Overview
Problem
Electronic devices in vehicles experience a delay in providing information to drivers due to booting times, and existing pre-booting methods may not accurately determine the driver's presence for timely activation or deactivation of power, leading to inefficiencies in power management.
Innovation Solution
A method and apparatus using a local area communication module, such as Bluetooth Low Energy, to determine the driver's location within a predetermined range and time, enabling pre-booting of in-vehicle systems when the driver is present and turning them off when the driver is not, thereby optimizing power supply control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If pre-booting is initiated based on door unlock/open/close signals, then the system can prepare to show video signals, but the system may not be prepared in time if the driver gets in and shifts into reverse faster than expected
Solution Approach 1:
The system performs preliminary actions (pre-booting) in advance by detecting when the mobile device enters a predetermined range before the driver actually enters the vehicle. This early detection allows the multimedia system to start booting the operating system and prepare video playback capabilities beforehand, ensuring readiness when the driver needs the video information.
Solution Approach 2:
The patent introduces a mobile device as an intermediary mediator between the driver and the vehicle's multimedia system. The mobile device's location information serves as an intermediate signal that triggers pre-booting actions, providing a more reliable and timely indication of driver arrival compared to traditional door signal-based methods.
2Loss of energy
If the multimedia system maintains sleep mode for a predetermined time after ignition is switched off, then power consumption during idle state can be reduced, but the time from beginning sleep mode to turning off the vehicle increases
Solution Approach 1:
The system uses feedback from the mobile device's location information to dynamically control the sleep mode duration. When the mobile device exits the predetermined range, the system receives feedback that the driver has left, allowing it to immediately transition from sleep mode to complete shutdown, optimizing both power consumption and shutdown timing based on real-time conditions.
Solution Approach 2:
The patent makes the sleep mode duration dynamic rather than fixed. The system adjusts the timing of transitions between operational states based on the mobile device's location - extending or shortening the sleep period as needed, thereby optimizing power consumption while adapting to varying driver behavior patterns.
3Measurement precision
If the system uses local area communication to detect driver location within 50 meters radius, then pre-booting can be accurately timed, but additional communication infrastructure is required
Solution Approach 1:
The patent leverages the universal multi-functionality of mobile devices that already possess location capabilities for other purposes (navigation, maps, etc.). By utilizing this existing functionality for driver detection, the system achieves precise location measurement without adding dedicated detection hardware, thereby minimizing additional complexity.
Solution Approach 2:
The mobile device serves itself by using its own location information to trigger vehicle system actions. The device's built-in location tracking and communication capabilities are utilized to provide the triggering signal, eliminating the need for separate detection infrastructure and reducing overall system complexity.
Data Source
AI summary
A method and an apparatus are provided for controlling a power supplied to an in-vehicle computing device. In the method, a mobile device is discovered, which is capable of communicating via a local area network. After it is determined whether a discovered mobile device is registered, the in-vehicle computing device is pre-booted according to a first condition when the discovered mobile device is registered.