Vehicle Reliability Assessment via Server-Mediated Data Standardization
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Solution Overview
Problem
The variability in sensors and LSI circuits among different vehicle types and vendors in advanced driving assistant systems (ADAS) and automated driving systems leads to inconsistent vehicle performance and control stability, making it challenging to effectively assess and manage the reliability of surrounding vehicles for safe vehicle control.
Innovation Solution
An information processing device connected to vehicle-mounted systems calculates and transmits the degree of reliability of surrounding vehicles, using a server device to gather and analyze data from various vehicles, and communicates this information back to the vehicle-mounted devices for improved control and user alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different sensors and LSI circuits are used among vehicle types and vendors, then device adaptability and versatility are improved, but measurement precision and reliability of vehicle performance assessment deteriorate
Solution Approach 1:
A server acts as an intermediary between vehicle-mounted devices with different sensors/LSI circuits and the central assessment system. The server receives data from diverse vehicle configurations, performs standardized processing, and generates unified reliability assessments, thereby mediating between hardware diversity and assessment consistency.
Solution Approach 2:
The system transforms raw sensor and LSI circuit data into standardized reliability parameters through the server. By changing the parameter representation from hardware-specific raw data to normalized reliability metrics, the system accommodates hardware diversity while maintaining assessment precision.
2Ease of manufacture
If vehicle-mounted devices are altered or customized, then ease of manufacture and adaptability are improved, but control stability and reliability deteriorate
Solution Approach 1:
The server provides feedback to vehicle-mounted devices about their reliability status based on analyzed data. This feedback mechanism allows customized devices to operate with awareness of their performance characteristics, enabling adaptive control that maintains stability despite hardware variations.
Solution Approach 2:
The server performs preliminary analysis of vehicle data before control decisions are made. By pre-assessing reliability metrics and communicating them to the vehicle-mounted devices, the system prepares control strategies in advance that account for hardware variations, ensuring stable control execution.
3Reliability
If real-time reliability assessment of surrounding vehicles is implemented, then vehicle control safety is improved, but information processing complexity and device complexity increase
Solution Approach 1:
The reliability assessment system is segmented into distributed vehicle-mounted devices that collect local data and a centralized server that performs complex analysis. This segmentation allows safety-critical processing to occur at the server level while keeping individual vehicle devices relatively simple.
Solution Approach 2:
The server provides universal reliability assessment services to multiple vehicle-mounted devices simultaneously. By consolidating complex processing functions in a multi-functional server, the system achieves comprehensive safety assessment without requiring each individual vehicle device to be complex.
Data Source
AI summary
According to an embodiment, an information processing device is communicably connected to a vehicle-mounted device and includes a receiver, a calculator, a vehicle database, and a transmitter. The receiver receives transmission information transmitted from the vehicle-mounted device and containing vehicle identification information, vehicle position information, a flag for indicating presence or absence of alternation of the vehicle-mounted device, and predetermined log data recorded by the vehicle-mounted device. The calculator calculates, based on the received transmission information, a degree of reliability of vehicle having the vehicle-mounted device mounted therein. The vehicle database holds, for each vehicle, the calculated degree of reliability and the vehicle position information. The transmitter refers to the vehicle database to identify a surrounding vehicle of a target vehicle, and transmits, to the vehicle-mounted device of the target vehicle, vehicle reception information containing the degree of reliability calculated for the surrounding vehicle.