In-Car Communication Route Selection Based on Vehicle State
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Solution Overview
Problem
Existing in-car communication technologies fail to determine an optimal communication route due to changing car states and environments, such as engine status and weather conditions, which are not adequately considered in conventional communication infrastructure methods.
Innovation Solution
A car-loaded communication apparatus and system that acquires car and environmental information to select the most suitable communication route based on digitized car state and communication route parameters, ensuring optimal packet transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional communication route selection based on number of hops and line speed is used, then route selection is simple and fast, but it cannot adapt to changing car states and environmental conditions
Solution Approach 1:
The system pre-defines multiple communication routes (Route 1, Route 2, Route 3) with different characteristics before actual communication occurs. These routes are prepared in advance with assigned priorities, so when communication is needed, the system only needs to select from pre-established options rather than creating routes dynamically, reducing real-time computational complexity while maintaining adaptability to different car states and environments.
Solution Approach 2:
The route selection is made dynamic by changing the priority order of pre-defined routes based on real-time car state information (engine on/off, stopping, running) and environmental conditions (rainy weather, traffic jams, highways). The system dynamically adjusts which route has highest priority without changing the underlying route structure, achieving adaptability while keeping the system relatively simple.
2Reliability
If multiple communication routes are available, then route optimization is possible, but determining the optimal route becomes complex when car state and environment change frequently
Solution Approach 1:
The system continuously monitors car state information (engine status, vehicle motion state) and environmental conditions (weather, traffic) as feedback inputs. Based on this real-time feedback, the route selection unit adjusts the priority order of communication routes to ensure reliable packet transfer appropriate for current conditions, without requiring complex optimization algorithms.
Solution Approach 2:
The system changes the priority parameter of communication routes based on car state and environmental conditions. Instead of complex multi-parameter optimization, it uses a simplified approach where route priorities are adjusted according to predefined conditions (e.g., during rain, Route 2 becomes highest priority; during highway driving, Route 3 becomes highest priority), making the determination process simpler while maintaining reliability.
3Adaptability or versatility
If consumer communication technology is applied to in-car network, then compatibility with internet technologies is improved, but safety and reliability requirements for car-related technologies are not met
Solution Approach 1:
The system applies different quality levels to different communication routes based on their characteristics and suitability for specific car states. Each route is assigned a priority level (highest, intermediate, lowest) that reflects its reliability and appropriateness for different conditions. This local differentiation of quality ensures that safety-critical communications use higher-priority, more reliable routes while non-critical communications can use lower-priority routes, meeting car safety requirements while using standard communication technology.
Data Source
AI summary
A car-loaded communication apparatus comprises: an acquisition part; and a selection part. The acquisition part acquires car information related to a state of a car in which a communication network is constructed inside, or an environment in which the car is placed. The selection part selects a communication route of a flow accommodating a transmission packet(s) from a plurality of communication routes included in the communication network, based on: the car information; and communication route information related to a communication route(s) included in the communication network.