Vehicle Data Sharing for Driver Assistance
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Solution Overview
Problem
Conventional driver assistance systems are limited to onboard measured values and lack the ability to share and validate data effectively between vehicles, leading to reduced accuracy and increased risk of measurement errors, especially in situations requiring precise distance measurements for safe driving.
Innovation Solution
A method and system for transmitting and processing measured values between vehicles using onboard measuring devices, allowing for improved accuracy and error compensation by validating and combining data from different sources, and enabling the provision of enhanced driver assistance services such as distance and parking assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If driver assistance systems use only onboard measured values, then the system complexity is low, but the measurement precision and reliability are reduced
Solution Approach 1:
The patent introduces a communication system as an intermediary between vehicles, allowing measured values to be transmitted and shared. This enables the second vehicle to access measured values from the first vehicle without each vehicle needing duplicate sensors, thereby improving measurement precision while avoiding the complexity of installing multiple sensing systems.
Solution Approach 2:
The patent creates a universal measured value sharing platform where sensors in one vehicle can serve multiple vehicles. The measured values collected by the first vehicle's sensors can be utilized by the second vehicle for its driver assistance functions, making the sensing infrastructure multi-functional and reducing overall system complexity.
2Reliability
If measured values are transmitted between vehicles, then the reliability is improved through validation, but the data traffic increases
Solution Approach 1:
The patent applies local quality by transmitting measured values selectively based on spatial proximity. The system determines whether the first vehicle is in a predetermined region around the second vehicle before transmitting data, ensuring that only locally relevant information is communicated. This reduces unnecessary data traffic while maintaining reliability through validation of relevant measurements.
3Measurement precision
If multiple measured values are collected and validated, then the accuracy is improved, but the processing time increases
Solution Approach 1:
The patent implements preliminary action by continuously collecting and pre-processing measured values in real-time as vehicles move. The system maintains a ready state with pre-validated measured values, so when a second vehicle needs data, the validation work has already been performed or is in progress, minimizing additional processing time while maintaining high accuracy.
Data Source
AI summary
A method for providing a driver assistance service includes the steps of determining a first measured value for a first measured variable using a first measuring device, which is situated onboard a first motor vehicle, of transmitting the first measured value to a second motor vehicle and of providing the driver assistance service in the second motor vehicle based on the transmitted first measured value.