Dynamic Transmission Interval for Collision Risk Management
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Solution Overview
Problem
Existing systems for collecting information from moving bodies, such as vehicles and airplanes, fail to control communication frequency appropriately based on collision risk, leading to inefficient data transmission and increased network load.
Innovation Solution
An information-collecting device that includes a risk calculation unit to determine the relative speed and distance between moving bodies, and a transmission-interval determination unit to adjust the data transmission frequency based on calculated risk, ensuring appropriate data collection frequency and network bandwidth utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If information is constantly collected from a large number of moving bodies, then the accuracy and real-time capability of collision detection is improved, but the network load increases significantly
Solution Approach 1:
The transmission interval is dynamically adjusted based on relative speed and distance calculations. When two moving bodies approach each other at high speed, the transmission interval is shortened to increase data collection frequency. When they move away or maintain safe distance, the interval is extended to reduce network load. This dynamic adaptation resolves the contradiction between detection accuracy and network load.
Solution Approach 2:
The system changes the transmission frequency parameter based on calculated risk levels. By computing relative speed and distance between moving bodies, the system adjusts the data transmission interval parameter to optimize both collision detection capability and network resource utilization, preventing unnecessary transmissions while maintaining safety.
2Speed
If data transmission frequency is increased to detect collision risk in real time, then the response time for collision prevention is improved, but the network bandwidth consumption increases
Solution Approach 1:
The transmission interval is made dynamic rather than fixed. The system continuously monitors relative speed and distance between moving bodies and adjusts the transmission frequency accordingly. High-risk situations trigger frequent transmissions for rapid response, while low-risk situations use extended intervals to conserve bandwidth, resolving the contradiction between response speed and bandwidth consumption.
Solution Approach 2:
Instead of continuous transmission, the system uses periodic transmissions with variable intervals. The transmission period is adjusted based on risk assessment, allowing the system to maintain real-time collision detection capability while significantly reducing overall network bandwidth consumption compared to constant high-frequency transmission.
3Reliability
If the transmission interval is shortened for high-risk situations, then the collision detection capability is improved, but the communication frequency and energy consumption increase
Solution Approach 1:
The system changes the transmission interval parameter based on calculated risk levels derived from relative speed and distance. In high-risk situations, the interval is shortened to improve collision detection reliability. In low-risk situations, the interval is extended to reduce communication energy consumption, effectively resolving the contradiction between detection reliability and energy usage.
Solution Approach 2:
The transmission frequency is dynamically adapted to match the actual risk level. Rather than using a fixed high frequency that would consume excessive energy, the system adjusts frequency based on real-time relative motion calculations, maintaining high reliability when needed while minimizing energy consumption during normal operations.
Data Source
AI summary
Information regarding moving bodies (00) that are in danger of colliding is collected at an appropriate frequency in accordance with the degree of danger. This information-collecting device has a risk calculation unit and a transmission-interval determination unit. The risk calculation unit receives, from a plurality of moving bodies, state information that includes locations and velocities and is transmitted at provided time intervals. The risk calculation unit also computes the distance between and relative velocities of two moving bodies. The transmission-interval determination unit computes an interval such that the higher the relative velocities of two moving bodies are relative to the distance therebetween, the shorter the interval is, and provides the computed interval to the moving bodies.