Vehicle Head Unit Interworking Conversion Policy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicles equipped with infotainment systems face delays and service interruptions when converting between wireless and wired interworking methods with mobile devices, particularly due to unreliable wireless connections and the need for repeated authentication processes.
Innovation Solution
A head unit with a communication interface comprising both wired and wireless modules, which determines and manages interworking requests, allowing seamless conversion between wireless and wired connections by using stored interworking conversion information to skip authentication and maintain service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the head unit converts between wireless and wired interworking methods, then connection reliability is improved, but service interruption and delay occur due to authentication processes
Solution Approach 1:
The head unit performs authentication in advance during the initial wireless connection establishment. The authentication result and device information are stored for future use, so when converting between wireless and wired interworking methods, the pre-authenticated information can be directly utilized without repeating the authentication process, thus reducing service interruption time
Solution Approach 2:
The head unit stores a copy of the authentication result and device information obtained during wireless connection establishment. This copied information is retained and can be directly applied when wired interworking is established, avoiding the need to重新 perform authentication and reducing conversion delay
2Stability of the object's composition
If the head unit establishes wired interworking with a mobile device, then connection stability is improved, but the ability to handle multiple device requests simultaneously is reduced
Solution Approach 1:
The head unit segments the interworking functionality by maintaining separate communication channels: wireless communication for handling multiple device requests and wired communication for stable single-device connection. This segmentation allows the system to simultaneously support multiple devices via wireless while providing stable wired connection to one device, resolving the conflict between connection stability and multi-device adaptability
3Reliability
If the head unit performs authentication procedure during interworking conversion, then security is improved, but conversion delay increases
Solution Approach 1:
Authentication is performed in advance during the initial wireless connection establishment, and the authentication result is stored. When converting to wired interworking, the pre-performed authentication result is directly utilized, eliminating the need to repeat authentication and thus reducing conversion delay while maintaining security
Solution Approach 2:
The authentication result obtained during wireless connection is copied and stored in the head unit. This copied authentication information is then directly applied during wired interworking conversion, avoiding repeated authentication processes and reducing conversion delay while preserving security requirements
Data Source
AI summary
A head unit of a vehicle is capable of defining a policy about conversion of interworking means between the vehicle and a mobile device and controlling conversion of the interworking means according to the defined policy to thereby minimize a delay generated upon conversion and to provide a service without interruption. A vehicle includes the head unit and a method of controlling the vehicle includes the head unit. The head unit of a vehicle interworking with a mobile device comprises: a communication interface including a wired communication module and a wireless communication module; a display configured to display an image corresponding to a video signal transmitted from the mobile device through the communication interface; and a controller configured to determine, if a new interworking request is received when the head unit interworks with the mobile device, whether the interworking with the mobile terminal is wired interworking through the wired communication module or wireless interworking through the wireless communication module. The controller is configured to determine whether to allow or disallow the new interworking request according to the determination.