AVN Control Device Prioritizing Reverse Gear Camera Over Boot Screen
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Solution Overview
Problem
Conventional AVN systems display the initial booting screen during the booting process, preventing the use of rear camera images when a vehicle is shifted into reverse gear immediately after engine start, and lack consistent operation and user-friendly interface due to separate systems for each manufacturer.
Innovation Solution
A control device that acquires surrounding state information using cameras and microphones, senses gear shifting states, and prioritizes outputting this information over the initial booting screen when the vehicle is in reverse gear, allowing for intuitive screen and audio changes based on vehicle modes, including storing media modes for seamless transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the AVN system displays the initial booting screen during the booting process, then the system performs a complete initialization sequence, but the rear camera images cannot be displayed when the vehicle is shifted into reverse gear immediately after engine start
Solution Approach 1:
The system checks the gear shifting state before completing the full booting process. When reverse gear is detected during booting, the system preliminarily displays the rear camera image instead of waiting for the complete booting sequence, ensuring immediate visibility while maintaining system initialization in the background
Solution Approach 2:
The booting process is made dynamic and adaptive based on real-time gear state. The system can switch between displaying the initial booting screen and rear camera images depending on whether reverse gear is detected, allowing flexible adjustment of display content during the booting phase
2Adaptability or versatility
If the AVN system uses separate systems for each manufacturer, then each manufacturer can have customized functionality, but the transition and operation of the screen are not consistent and users cannot use it intuitively
Solution Approach 1:
The system implements a universal control framework that handles common functions consistently across different manufacturers while allowing optional manufacturer-specific customizations. The gear-state-based display switching and priority output mechanisms are standardized across all systems, ensuring consistent user experience regardless of manufacturer
Solution Approach 2:
The system applies different levels of standardization to different functions. Core operations like booting behavior and gear-responsive display switching follow universal standards, while allowing manufacturers to customize non-critical features, creating a balanced approach between consistency and adaptability
3Reliability
If the system outputs the initial booting screen and audio, then the system performs proper initialization, but relevant rear information cannot be immediately outputted when needed for safe reversing
Solution Approach 1:
The gear shifting state acts as an intermediary signal that mediates between the booting process and display output. When reverse gear is detected during booting, this intermediary trigger causes the system to prioritize rear camera image output, bridging the gap between initialization and functional display without compromising system startup
Data Source
AI summary
A control device for changing screen and audio of an AVN system includes a surrounding-state-information acquisition unit that acquires surrounding state information of a vehicle, an output unit that outputs the surrounding state information acquired by the surrounding-state-information acquisition unit, a gear-shifting-state sensing unit that senses a shifting state of a gear of the vehicle, a booting execution unit that performs an initial booting process for booting the AVN system when a system power is applied with a start of an engine of the vehicle, and a control unit that outputs the surrounding state information acquired by the surrounding-state-information acquisition unit from the output unit with priority over the initial booting screen and audio outputted by the booting execution unit when a reverse gear state is sensed by the gear-shifting-state sensing unit while the initial booting process is being performed by the booting execution unit.