Data Transfer Device Memory Overflow Prevention
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Solution Overview
Problem
Existing data transfer systems face challenges in maintaining sensor data communication speed in areas with low wireless communication line speeds, such as tunnels or mountain areas, while avoiding memory overflow.
Innovation Solution
A data transfer device that acquires sensor data at a first communication speed, transmits it at a second communication speed, and calculates the temporal transition of the predicted accumulation amount in memory to determine if overflow will occur, thereby adjusting communication speeds to prevent overflow without reducing data transfer speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sensor information collecting speed is controlled depending on the line speed information, then the occurrence of overflow in the memory can be suppressed, but the sensor information collecting speed is inevitably reduced in areas with zero or low line speed
Solution Approach 1:
The system performs preliminary calculation of the temporal transition of predicted accumulation amount before data collection begins. By predicting future memory accumulation based on current line speed and sensor data generation rates, the system proactively determines safe collection speeds that prevent overflow without needing to reactively slow down during data collection
Solution Approach 2:
The sensor information collecting speed is dynamically adjusted based on real-time line speed conditions and predicted accumulation trends. The control unit continuously monitors the temporal transition of predicted accumulation amount and adapts the collection speed accordingly, allowing high-speed collection when line speed permits and low-speed collection when line speed is limited, optimizing both memory safety and data collection efficiency
Data Source
AI summary
Provided is a data transfer device capable of avoiding reduction in a data communication speed of a sensor in an area with a low wireless communication line speed while suppressing occurrence of overflow. The data transfer device includes: a data acquisition unit that acquires sensor data detected by a sensor at a first data communication speed; a communication unit that transmits the acquired sensor data to an external server at a second data communication speed; an accumulation amount calculating unit that calculates a temporal transition of a predicted accumulation amount of the acquired sensor data in a memory using the first data communication speed and the second data communication speed; and a determination unit that determines whether or not the sensor data to be accumulated in the memory will overflow on the basis of the temporal transition of the predicted accumulation amount.