Vehicle Rewrite Progress Synchronization Across Display Terminals
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Solution Overview
Problem
The existing vehicle program rewrite systems face challenges in synchronizing the progress of program rewrites across multiple display terminals, leading to confusion for users when progress information is displayed differently on various terminals.
Innovation Solution
A vehicle program rewrite system is introduced, comprising a vehicle master device and a center device that communicate to synchronize the progress of program rewrites. The vehicle master device determines and transmits the first progress, while the center device determines and transmits the second progress, ensuring that both the vehicle-mounted and mobile display terminals receive consistent information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If progress information is displayed independently on each display terminal, then each terminal can show rewrite progress, but different terminals display different progress information causing user confusion
Solution Approach 1:
The vehicle master device serves as an intermediary between the center device and multiple display terminals. It receives rewrite progress from the center device, determines the progress information, and distributes it to all display terminals, ensuring consistent progress display across all terminals while maintaining independent display capability.
Solution Approach 2:
The system implements a feedback mechanism where the vehicle master device receives progress information from the center device, processes it through the progress determination unit, and distributes it to display terminals. This closed-loop feedback ensures all terminals receive updated, consistent progress information simultaneously.
2Loss of information
If the vehicle master device determines and transmits progress to the center device, then progress information can be synchronized, but additional communication and processing steps are required
Solution Approach 1:
The vehicle master device performs multiple functions: it acts as a progress determination unit that processes rewrite progress, serves as a communication hub between the center device and display terminals, and functions as a distribution point for progress information. This multi-functionality reduces the need for separate dedicated components.
Solution Approach 2:
The system merges the progress determination function with the vehicle master device that already exists in the vehicle network. By combining progress determination, communication coordination, and information distribution functions into the existing vehicle master device, the system avoids adding separate complex communication infrastructure.
Data Source
AI summary
In a vehicle program rewrite system, a vehicle master device includes a first progress determination unit that is configured to determine a first progress related to a program rewrite, a first progress transmission unit that is configured to transmit the first progress determined by the first progress determination unit to the center device, a second progress acquisition unit that is configured to acquire a second progress related to the program rewrite from the center device, and a first display instruction unit that is configured to instruct to create a content that is displayable on a display terminal mounted in a vehicle based on the first progress determined by the first progress determination unit and the second progress acquired by the second progress acquisition unit.