Vehicle Load Integral Processing for Low-Bandwidth Damage Estimation
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Solution Overview
Problem
Conventional vehicle damage estimation systems face high communication loads due to the need to transmit large amounts of data from vehicles to servers for accurate damage assessment.
Innovation Solution
A vehicle information generation system that includes an electronic control device on the vehicle, which computes and transmits load values as integrals multiplied by gains specific to each vehicle part, reducing data transmission while generating high-reliability vehicle information without increasing communication load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensor data is transmitted from vehicle to server for damage estimation, then damage assessment accuracy is improved, but communication load increases
Solution Approach 1:
The electronic control device performs preliminary processing of sensor data by computing integrals of load values and multiplying by gains before transmission. This preliminary computation reduces the data size to be transmitted while preserving the essential information needed for accurate damage assessment, thereby resolving the contradiction between communication load and assessment accuracy
Solution Approach 2:
The system extracts only the essential features from raw sensor data by computing integrals and applying gain factors. Instead of transmitting all raw sensor data, only the processed integral values with applied gains are transmitted, which contains the critical information for damage estimation while significantly reducing communication requirements
2Productivity
If integrals of load values are computed and transmitted with gains, then communication efficiency is improved, but information processing complexity increases
Solution Approach 1:
The information processing is segmented between the electronic control device (computing integrals and applying gains) and the server (receiving and analyzing processed data). This segmentation allows the vehicle-side device to perform simpler local processing while the server handles the final analysis, improving communication efficiency without concentrating all complexity in one location
Solution Approach 2:
The system transforms raw sensor data into a different parameter space by computing integrals over time and applying gain factors. This parameter transformation simplifies the data representation for transmission while encoding the necessary information for damage assessment, thereby improving communication efficiency with manageable processing complexity
Data Source
AI summary
A vehicle information generation system includes an electronic control device and a server. The electronic control device includes a computing part that computes a plurality of types of load value about load applied to a vehicle during traveling, based on results of detection obtained by a sensor mounted on the vehicle; an integral processing part that computes integrals of the load values; a gain processing part that computes gain integrals obtained by multiplying the integrals by gains, the gains being set for each part of the vehicle and for each of the load values; and a transmission processing part that performs a process for transmitting the gain integrals to the server. The server includes a generating part that generates vehicle information about damage to the vehicle, based on a total value obtained by adding together the plurality of gain integrals corresponding to the respective plurality of types of load value.