Infrastructure Sensor Correction for Wind-Induced Movement
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Solution Overview
Problem
Environmental sensor systems mounted on infrastructure components, such as traffic poles and signs, face challenges in providing accurate data due to movement caused by environmental factors like wind, which can affect the precision of object position detection for autonomous vehicles and other vehicles, pedestrians, and infrastructure.
Innovation Solution
The system employs a combination of environmental sensors and movement sensors, like accelerometers, mounted on infrastructure components to detect object positions and correct for movements caused by external forces, ensuring accurate data transmission through vehicle-to-everything communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If environmental sensors are mounted on infrastructure components, then object position detection capability is improved, but measurement precision deteriorates due to infrastructure movement caused by environmental factors like wind
Solution Approach 1:
The patent introduces an accelerometer as an intermediary device that measures the movement of the infrastructure component itself. This intermediary sensor provides data about the infrastructure's displacement, which is then used to correct the position measurements from the environmental sensors, effectively mediating between the moving sensor platform and the target objects being measured
Solution Approach 2:
The system implements a feedback mechanism where the accelerometer continuously monitors infrastructure movement and feeds this information back to correct the environmental sensor measurements in real-time. This closed-loop approach allows the system to compensate for platform movement dynamically, maintaining measurement precision despite the moving mounting structure
2Measurement precision
If movement sensors are added to correct for infrastructure movement, then position measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The infrastructure component serves multiple functions: it provides mechanical support for the sensor system, acts as the measurement platform for environmental sensors, and simultaneously serves as the subject being measured by the accelerometer. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity
Solution Approach 2:
The patent combines the environmental sensors and the accelerometer into an integrated sensor system mounted on the same infrastructure component. By merging these sensors into a unified system with shared mounting and processing, the overall complexity is minimized while achieving the goal of corrected position measurements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the accuracy of object position data by compensating for infrastructure movement, thereby improving road safety and traffic efficiency by providing reliable information to autonomous vehicles and other entities.
Implementation Method 1
the at least one second sensor comprises an accelerometer
Data Source
AI summary
A method and apparatus includes at least one first sensor configured to be mounted to an infrastructure component, wherein the at least one sensor comprises an environmental sensor. At least one second sensor is configured to be mounted to the infrastructure component, and is configured to sense movement of the infrastructure component. The method and apparatus also includes a system that uses the at least one first sensor to detect an object position and determines an amount of correction for the object position based on movement detected by the at least one second sensor.