Server Fusion of Mobile and Fixed Terminal Sensor Data
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Solution Overview
Problem
Conventional traffic systems rely on vehicle information transmitted through a central apparatus, limiting real-time information provision to mobile terminals from multiple sources, which restricts effective driving support.
Innovation Solution
A system comprising mobile and fixed terminals that transmit sensor information to a server, which generates and transmits dynamic information for collision avoidance and prediction, utilizing edge and core servers with different delay times to prioritize and update information effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a central apparatus processes all vehicle information, then information processing is centralized and manageable, but real-time information provision to mobile terminals is limited and delayed
Solution Approach 1:
The system segments the centralized information processing function into distributed processing units: mobile terminals process their own sensor data locally, fixed terminals process roadside sensor data locally, and the server performs centralized fusion processing. This segmentation enables parallel processing across multiple nodes, reducing overall processing delay while maintaining comprehensive information reliability through distributed verification
Solution Approach 2:
The system adds a spatial dimension to information processing by deploying fixed terminals at multiple roadside locations and mobile terminals in various vehicles. This multi-dimensional distributed architecture allows simultaneous data collection and processing across different geographic locations, reducing central processing bottlenecks and enabling real-time information provision to multiple mobile terminals in parallel
2Productivity
If only vehicle information is transmitted to the central apparatus, then communication load is reduced, but information completeness for collision avoidance is insufficient
Solution Approach 1:
The system merges three distinct information sources: mobile terminal sensor data (vehicle sensors), fixed terminal sensor data (roadside sensors), and server-fused comprehensive information. By combining these diverse data streams through the server's fusion processing, the system achieves complete situational awareness for collision avoidance while maintaining communication efficiency through selective transmission of only essential data to each terminal
Solution Approach 2:
The server performs universal fusion processing that integrates multiple information types (vehicle sensor data, roadside sensor data, map data) into comprehensive third information. This multi-functional processing capability ensures all necessary information for collision avoidance is synthesized from various sources, compensating for the selective transmission approach while maintaining overall information completeness
3Measurement precision
If all sensor information is transmitted to the server, then information accuracy is improved, but communication bandwidth consumption increases
Solution Approach 1:
The system extracts and processes only the most critical sensor information at the terminal level before transmission. Mobile terminals extract relevant vehicle state data, fixed terminals extract relevant environmental data, and the server extracts essential fused information for collision avoidance. This selective extraction maintains high information accuracy for safety-critical parameters while significantly reducing overall communication data volume
Solution Approach 2:
The system transmits partial sensor information (only essential data for collision avoidance) rather than complete sensor datasets. The server performs fusion processing on this partial information combined with its own stored data (map data, historical data) to achieve comprehensive accuracy. This partial transmission approach reduces communication bandwidth consumption while maintaining sufficient information accuracy for safety functions
Data Source
AI summary
An information providing system according to one mode of the present disclosure includes: one or a plurality of mobile terminals each configured to transmit first information based on own sensor information to a server; one or a plurality of fixed terminals each configured to transmit second information based on own sensor information to the server; and the server configured to generate third information on the basis of the first information and the second information that have been received by the server, and configured to transmit the generated third information to at least the mobile terminal.