In-Vehicle Communication Device Data Freshness Routing
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Solution Overview
Problem
Existing in-vehicle communication devices fail to select an appropriate communication method based on the type and freshness of data, leading to inefficient data transmission and processing load imbalances.
Innovation Solution
An in-vehicle communication device with a communication method selection unit that chooses between short-range and long-range communication units based on real-time communication requirements, data freshness, and communication capacity limits to optimize data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If long-range communication is used for all data transmission, then data freshness is improved, but processing load and communication cost increase
Solution Approach 1:
The patent applies local quality by differentiating communication methods based on data types and freshness requirements. Critical real-time data uses long-range communication while non-critical data uses short-range communication, optimizing the system according to local needs rather than applying a uniform approach.
Solution Approach 2:
The patent segments data transmission into two paths: long-range communication for high-freshness data and short-range communication for low-freshness data. This segmentation allows the system to distribute processing loads appropriately and avoid unnecessary long-range communication for all data types.
2Productivity
If short-range communication is used for all data transmission, then processing load is reduced, but data freshness deteriorates
Solution Approach 1:
The system applies local quality by selecting communication methods based on data-specific requirements. For data requiring high freshness, long-range communication is activated; for data where freshness is less critical, short-range communication is used, thereby reducing overall processing load while maintaining necessary freshness levels.
Solution Approach 2:
The patent segments data transmission requirements into two categories and applies different communication strategies accordingly. This segmentation enables the system to minimize processing load by using shorter-range communication for non-critical data while reserving long-range communication for data where freshness is essential.
3Adaptability or versatility
If communication capacity limits are not considered, then data transmission flexibility is improved, but communication cost and resource consumption increase
Solution Approach 1:
The patent incorporates feedback mechanisms that monitor communication capacity and adjust data transmission strategies accordingly. When capacity limits are approached, the system switches to alternative communication methods or prioritizes critical data transmission, thereby managing resource consumption while maintaining transmission flexibility.
Solution Approach 2:
The system dynamically adapts its communication strategy based on real-time conditions including capacity limits. The communication method selection unit continuously evaluates data freshness requirements, available capacity, and transmission priorities to dynamically choose the most efficient communication path, optimizing resource usage while maintaining flexibility.
Data Source
AI summary
An in-vehicle terminal device includes: a wireless LAN communication section capable of performing wireless communication over a short range; a cellular communication section capable of performing wireless communication over a longer range than the wireless LAN communication section; and a communication method selection section which selects the wireless LAN communication section or the cellular communication section according to a real-time communication requirement for data to be transmitted to or received from outside of a vehicle.