Route-Aware Wireless Data Transmission for Fading-Limited Mobility
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Solution Overview
Problem
Existing data transmission systems in moving objects face challenges in efficiently managing communication quality fluctuations due to fading and location-dependent radio wave interference, especially when time limits are imposed for data transmission and reception.
Innovation Solution
A data transmission device mounted in a moving object that includes a wireless communication unit, data storage, travel route information acquisition, propagation environment information acquisition, speed information acquisition, conversion of travel route and propagation environment into data slots based on speed, and allocation of data to slots with the highest communication speed, along with a transmission instructor to manage data transmission timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data transmission is managed based on radio wave map and position updates, then communication quality can be monitored, but the system complexity increases and time management becomes difficult
Solution Approach 1:
The patent segments the travel route into multiple data slots based on communication speed per unit time. Each data slot represents a specific time interval during which data should be transmitted at a certain speed threshold. This segmentation transforms the continuous communication management problem into discrete, manageable units, reducing system complexity while maintaining reliable communication quality monitoring.
2Reliability
If constant position updates are performed for data transmission, then communication quality can be tracked, but time consumption increases
Solution Approach 1:
The patent performs preliminary action by pre-dividing the travel route into data slots with predetermined communication speed requirements before actual data transmission occurs. The system acquires future travel route information and propagation environment information in advance, then converts them into data slots with specific time intervals and speed thresholds. This allows the system to track communication quality without requiring constant position updates during transmission, as the time intervals are pre-established.
3Productivity
If data transmission is optimized for speed, then transmission efficiency improves, but adaptability to changing conditions decreases
Solution Approach 1:
The patent implements dynamics by making the data slots adaptable to changing communication conditions. The system acquires propagation environment information and future travel route information, then converts them into data slots with specific communication speed thresholds. When actual communication conditions change, the system can adjust which data slots are active and modify transmission parameters dynamically. This allows the system to optimize transmission efficiency while maintaining adaptability to speed changes through flexible, condition-based slot management.
Data Source
AI summary
A data transmission device includes a wireless communication unit that wirelessly communicates with an external communication device, a travel route information acquirer that acquires a future travel route of a moving object, a travel route, a propagation environment information acquirer that acquires propagation environment information of a radio wave propagation path used in wireless communication, a speed information acquisition unit that acquires the moving speed of a moving object, and a converter that converts a relationship between the travel route and propagation environment information into a plurality of data slots each defined by the communication speed per unit time; a transmission instructor that instructs the wireless communication unit to transmit the data allocated to the data slot.