Server-Based Vehicle Control System for Infrastructure Sensor Adaptation
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Solution Overview
Problem
Existing vehicle traveling support systems face challenges in providing effective support when infrastructure sensors are not installed in all areas, leading to inconsistent reception of external information and inadequate traveling support.
Innovation Solution
A server-based vehicle control system that includes an infrastructure management unit and an infrastructure cooperation section determination unit, which determines a cooperative operation range with infrastructure sensors and transmits information for in-vehicle devices to start or stop cooperative operations, ensuring appropriate traveling support based on the installation state of infrastructure sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system assumes infrastructure sensors are installed in all areas, then traveling support can be performed continuously, but the system becomes unreliable when infrastructure sensors are not actually installed
Solution Approach 1:
The system dynamically adjusts its operation mode based on the detected infrastructure sensor installation state. When infrastructure sensors are detected, the system performs cooperative traveling support; when not detected, the system switches to independent traveling support mode, thereby maintaining reliability across varying infrastructure conditions
Solution Approach 2:
The system incorporates feedback mechanisms where the in-vehicle device communicates with the server about its infrastructure sensor status. The server uses this feedback information to determine the appropriate cooperation section and adjusts the traveling support operation accordingly, ensuring reliable operation whether infrastructure sensors are present or not
2Measurement precision
If the system performs cooperative operation with infrastructure sensors, then traveling support accuracy is improved, but the system complexity increases when infrastructure sensors are not available
Solution Approach 1:
The system segments the traveling support operation into distinct modes: cooperative mode when infrastructure sensors are available and independent mode when they are not. This segmentation allows the system to maintain high precision when possible while avoiding unnecessary complexity when infrastructure sensors are absent
Solution Approach 2:
The system applies partial action by implementing cooperative operation only in the infrastructure cooperation section where infrastructure sensors are actually installed and functional. When sensors are not available, the system performs only the necessary independent operation, avoiding excessive complexity in areas where cooperative infrastructure support is not present
3Productivity
If the system continuously attempts cooperative operation, then infrastructure utilization is maximized, but communication overhead increases when infrastructure sensors are not installed
Solution Approach 1:
The system performs preliminary determination of the infrastructure cooperation section before attempting cooperative operation. By pre-identifying whether infrastructure sensors are installed and operational in a given area, the system can prepare appropriate communication protocols and data formats in advance, reducing communication overhead and energy consumption when infrastructure sensors are not present
Data Source
AI summary
The server includes an infrastructure cooperation section determination unit that determines an infrastructure cooperation section indicating a range in which an in-vehicle device performs a cooperative operation with an infrastructure sensor and performs traveling support of the host vehicle, and transmits cooperative operation information for the in-vehicle device to start or stop the cooperative operation with the infrastructure sensor to the in-vehicle device based on the infrastructure cooperation section determined by the infrastructure cooperation section determination unit. The in-vehicle device sets or cancels the cooperative operation mode by the mode setting unit based on the cooperative operation information transmitted from the server.