In-Vehicle App Continuation via Broadcast-Based Card Display
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Solution Overview
Problem
Existing mobile phone-vehicle connectivity solutions can only implement application continuation for a limited number of applications, failing to support seamless display and audio continuation for various third-party applications during device switching.
Innovation Solution
A method and device that enable seamless display continuation of multiple third-party applications from a terminal device to an in-vehicle device through broadcast messaging, allowing applications to send and receive data information for card generation and management on the in-vehicle screen, ensuring uninterrupted application use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing mobile phone-vehicle connectivity solutions are used, then application continuation can be implemented, but only for a limited number of applications
Solution Approach 1:
The patent implements a universal broadcast mechanism that allows any application on the terminal device to send data information to the in-vehicle device through a standardized interface. Instead of implementing separate continuation logic for each application, the system uses a general-purpose broadcast system where applications can publish their data using the same protocol, thereby supporting unlimited applications without increasing system complexity
Solution Approach 2:
The patent introduces a broadcast mechanism as an intermediary layer between applications and the in-vehicle device. This mediator handles the complexity of data transmission, parsing, and display management centrally, allowing individual applications to remain simple while enabling versatile multi-application support through the intermediary's coordination
2Ease of operation
If application continuation is implemented for multiple third-party applications, then user experience is improved, but data transmission and management complexity increases
Solution Approach 1:
The patent changes the parameter of data transmission from application-specific custom protocols to a standardized broadcast message format. By defining a universal data structure and transmission protocol that all applications follow, the system simplifies the complexity of managing multiple applications while maintaining ease of operation, as the in-vehicle device only needs to handle one standardized message type regardless of the number of applications
Data Source
AI summary
A method is provided and applied to a terminal device. The terminal device is connected to an in-vehicle device and a first application and at least one second application run on the terminal device. The method includes: sending, by the first application, a first broadcast to the at least one second application, so that the at least one second application sends a second broadcast based on the first broadcast; receiving a second broadcast sent by the at least one second application, where the second broadcast includes first data information of the second application; generating, based on the first data information, a card corresponding to the second application, and displaying the card on the in-vehicle device; and when a user taps the card corresponding to the second application, displaying, on the in-vehicle device based on the first data information of the second application, content of the second application.