V2X Assisted Dynamic Calibration of Automotive Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current automotive sensor calibration methods are labor-intensive, time-consuming, and costly, and they fail to maintain sensor accuracy over time, which can lead to safety issues due to sensor drift or calibration errors during vehicle operations.
Innovation Solution
The implementation of V2X assisted dynamic calibration techniques using roadside units and calibration objects, where vehicles exchange messages with roadside units via V2X networks to calibrate sensors based on known calibration characteristics, allowing for real-time adjustment and cross-calibration of sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sensor calibration methods are used, then initial calibration can be achieved, but the process is labor-intensive, time-consuming, and costly, and fails to maintain sensor accuracy over time
Solution Approach 1:
The patent implements dynamic calibration by enabling vehicles to perform sensor calibration automatically during normal operation using V2X communications with roadside units. The system transitions from static, manual calibration performed at the factory to dynamic, automated calibration that occurs continuously throughout the vehicle's operational life, maintaining sensor accuracy without requiring dedicated calibration time or labor
Solution Approach 2:
The vehicle performs its own sensor calibration autonomously using onboard sensors and V2X communication capabilities. The system self-calibrates by exchanging calibration data with roadside units and adjusting sensor parameters automatically, eliminating the need for manual intervention, specialized equipment, or time-consuming calibration procedures while maintaining continuous accuracy
2Reliability
If traditional sensor calibration methods are used, then initial calibration can be performed, but the process is labor-intensive and costly
Solution Approach 1:
The patent replaces manual mechanical calibration processes with automated electronic and communication-based systems. Instead of requiring physical adjustment of sensors using specialized equipment and human expertise, the system uses V2X communications to transmit calibration data wirelessly, and onboard processors to automatically adjust sensor parameters, significantly reducing labor requirements and costs while maintaining calibration accuracy
Solution Approach 2:
The roadside units serve multiple functions: they provide V2X communication infrastructure for vehicle-to-infrastructure communications, deliver calibration data to vehicles, and enable continuous sensor calibration. This multi-functional approach consolidates what would traditionally require separate calibration equipment and personnel into a single integrated system, reducing overall complexity and cost
3Adaptability or versatility
If sensors are installed to enhance ADAS features, then vehicle safety and functionality improve, but calibration complexity and cost increase
Solution Approach 1:
The patent merges the calibration function with the existing V2X communication infrastructure and roadside units. Instead of requiring separate calibration equipment and procedures for each new sensor, the system combines calibration capabilities with the existing communication network, allowing multiple sensors to be calibrated simultaneously through a single integrated approach, thereby reducing overall system complexity
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A vehicle-based wireless device may receive a calibration availability message from a roadside unit identifying one or more calibration characteristics of a calibration object associated with the roadside unit. The vehicle-based wireless device may determine one or more sensor characteristics for a sensor of the vehicle and the vehicle. The vehicle-based wireless device may measure the one or more calibration characteristics of the calibration object using the sensor while the vehicle is within a defined range of the calibration object. The vehicle-based wireless device may perform a calibration procedure to calibrate the sensor based at least in part on the identified one or more calibration characteristics, the measured one or more calibration characteristics, and the one or more sensor characteristics.