Vehicular Communication Data Management via Speed-Based Deletion
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Solution Overview
Problem
Current vehicles lack the ability to appropriately acquire and manage large amounts of dynamic movement data from multiple movable bodies, leading to inefficient vehicle control and potential memory shortages due to uniform data deletion techniques that may discard useful data.
Innovation Solution
A vehicular communication apparatus with an acquiring unit, memory, and data managing unit that acquires, stores, and manages movement data by invalidating or deleting data based on the speed of each movable body, allowing for efficient data storage and use in vehicle control systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If movement data from multiple movable bodies is acquired and stored, then vehicle control accuracy and safety are improved, but memory capacity is consumed and may overflow
Solution Approach 1:
The patent applies the principle of discarding and recovering by selectively deleting movement data based on speed criteria. Fast-moving objects (≥ threshold speed) are deleted after a shorter storage period, while slow-moving objects (< threshold speed) are retained longer. This differential deletion strategy recovers memory capacity efficiently while maintaining necessary data for safe vehicle control, resolving the contradiction between maintaining comprehensive movement data and preventing memory overflow.
2Ease of manufacture
If movement data is stored uniformly without differentiation, then data management is simple, but useful data may be discarded and memory is wasted on unnecessary data
Solution Approach 1:
The patent applies local quality by differentiating data retention policies based on the speed characteristic of each movable body. Instead of uniform deletion, the system assigns different storage durations to different types of movement data: fast-moving objects (potential threats) are retained longer, while slow-moving objects are deleted sooner. This localized differentiation optimizes both memory utilization and data usefulness without significantly complicating the management system.
3Loss of information
If all movement data is retained in memory, then complete movement information is available for analysis, but processing time increases and system complexity grows
Solution Approach 1:
The patent extracts and removes unnecessary movement data from memory based on speed-based criteria. By deleting data from fast-moving objects after a predetermined period and retaining only data from slow-moving objects longer, the system extracts the essential useful information while removing redundant data. This reduces the total data volume requiring processing, thereby decreasing processing time and computational load while maintaining completeness of relevant movement information.
Data Source
AI summary
A vehicular communication apparatus configured to receive movement data related to a movement of other movable bodies includes an acquiring unit, a memory, and a data managing unit. The acquiring unit is configured to acquire the movement data on the other movable bodies. The memory is configured to store and record therein the movement data acquired by the acquiring unit. The data managing unit is configured to manage the record of the movement data in the memory. The data managing unit is configured to acquire a speed of each movable body that is obtained from the movement data recorded in the memory, and invalidate or delete the movement data recorded in the memory on a movable-body by movable-body basis in accordance with the acquired speed of the each movable body.