Dynamic Obstacle Map Transmission for Vehicle Assistance
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Solution Overview
Problem
Existing driving assistance systems face challenges in acquiring real-time obstacle maps due to increased communication traffic when receiving unnecessary obstacle information, leading to difficulties in obtaining relevant data for dynamic driving scenarios.
Innovation Solution
A driving assistance device that transmits request data based on the moving speed of a vehicle and receives an obstacle map within a dynamically defined range, ensuring only necessary information is transmitted and received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If obstacle map information range is expanded to cover all possible areas, then completeness of obstacle information is improved, but communication traffic increases and real-time acquisition becomes difficult
Solution Approach 1:
The patent applies local quality by making the information transmission range dynamic and location-specific. Instead of uniformly transmitting obstacle information for all areas, the system adjusts the transmission range based on the mobile body's current position, moving speed, and acceleration. This ensures that only relevant local areas are monitored and transmitted, improving both information completeness for the specific context and reducing unnecessary communication traffic.
Solution Approach 2:
The patent implements dynamics by making the obstacle information range adjustable rather than fixed. The transmission range dynamically changes based on the mobile body's moving speed and acceleration characteristics. When the mobile body moves faster or accelerates, the system expands the information range to cover longer distances, while reducing it for slower movements. This dynamic adjustment optimizes the balance between information completeness and communication efficiency in real-time.
2Productivity
If obstacle map information range is reduced to minimize communication traffic, then real-time acquisition is improved, but necessary obstacle information may be missed
Solution Approach 1:
The patent applies parameter changes by adjusting the information range parameters based on the mobile body's motion parameters (speed and acceleration). The system changes the spatial extent of obstacle information transmission according to these dynamic parameters, ensuring that the information range is always appropriate for the current motion state. This resolves the contradiction by making the range adaptive rather than fixed, maintaining real-time efficiency while capturing necessary obstacles.
Solution Approach 2:
The system dynamically adjusts the obstacle information range to match the mobile body's motion characteristics. By continuously adapting the transmission range based on real-time speed and acceleration data, the system ensures that necessary obstacle information is captured without excessive data transmission, achieving both real-time efficiency and information completeness.
3Device complexity
If fixed range (intersection) is used for obstacle information transmission, then system complexity is reduced, but adaptability to different driving situations is worsened
Solution Approach 1:
The patent transforms the static intersection address system into a dynamic one by introducing adjustable transmission ranges based on motion parameters. Instead of being confined to fixed intersection boundaries, the system now adapts the information range according to the mobile body's speed and acceleration, significantly improving adaptability to different driving situations while maintaining reasonable system complexity.
Solution Approach 2:
The system changes the spatial parameters of the information transmission range based on motion parameters. By linking the range extent to speed and acceleration values, the system achieves adaptability to various driving scenarios without requiring completely new address management systems, thus balancing adaptability improvement with complexity control.
Data Source
AI summary
A driving assistance system (1) is provided with a driving assistance device (10) mounted in a mobile body (31), and a map transmission device (20) mounted in a peripheral body such as a road side apparatus (33) or a mobile body (32) which is present on the periphery of the mobile body. The driving assistance device (10) transmits request data according to a moving speed of the mobile body to the peripheral body. The map transmission device (20) transmits an obstacle map indicating an obstacle within a range according to the request data transmitted by the driving assistance device (10), to the mobile body (31) as an external map. The driving assistance device (10) receives the external map transmitted by the map transmission device (20).