In-Vehicle Wired Wireless Composite Communication System
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Solution Overview
Problem
In-vehicle communication systems face challenges in balancing the reliability of data communication between devices, as wired communication improves reliability but increases costs, while wireless communication compromises on reliability, and existing methods do not effectively address these issues.
Innovation Solution
A wired/wireless composite communication system that uses both electric and optical signals for wired communication and wireless protocols, with a data priority management system to determine and separate high-priority and low-priority data, transmitting critical data via wired connections and less critical data via wireless connections, optimizing the use of communication resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired communication is used for all communication devices, then reliability of data communication is improved, but communication costs increase
Solution Approach 1:
The communication data is segmented into high-priority and low-priority categories. High-priority data is transmitted through wired communication channels to ensure reliability, while low-priority data is transmitted through wireless channels to reduce costs. This segmentation allows the system to achieve reliable communication for critical data without requiring all devices to be connected via expensive wired infrastructure.
2Ease of manufacture
If wireless communication is used to reduce costs, then communication costs decrease, but reliability of data communication deteriorates
Solution Approach 1:
Different communication channels are assigned different quality characteristics based on local requirements. Wired communication with high reliability is applied locally to devices and data types that require it, while wireless communication with lower cost is applied to other devices and data types where reliability requirements are less stringent. This local differentiation allows cost reduction while maintaining necessary reliability.
3Reliability
If expensive communication lines are deployed throughout the vehicle, then data communication reliability is improved, but device complexity increases
Solution Approach 1:
The communication infrastructure is segmented into wired and wireless subsystems. The wired subsystem handles high-priority communication paths, while the wireless subsystem handles low-priority communication paths. This segmentation reduces the overall complexity by avoiding the need to deploy expensive wired infrastructure throughout the entire vehicle, while still providing reliable communication where needed.
Data Source
AI summary
A wired/wireless composite communication system and a wired/wireless composite communication method perform control to use wired communication for communication data having high priority and to use wireless communication for communication data having low priority among the types of communication data transmitted and received between communication devices provided within a vehicle. Specifically, the wired/wireless composite communication system and the wired/wireless composite communication method transmit wired communication data and wireless communication data divided on the basis of the priority set for each type of the communication data separately by wired communication and wireless communication, and couple the wired communication data and the wireless communication data separately received on a reception side to each other to reconstruct the communication data.