Radar Sensor Pivot Housing for Expanded Solid Angle View
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Solution Overview
Problem
Radar sensors with a fixed axis of rotation have a limited solid angle of view, requiring multiple sensors to cover a wide area, which impairs spatial and angular resolution due to beam expansion and limits their effectiveness in industrial applications under rough conditions.
Innovation Solution
The radar sensor's housing is pivotably supported about a pivot axis, allowing the axis of rotation to be tilted, enabling a larger solid angle of view by rotating the radiation direction, and incorporating a drive unit for automated adjustment, a deflection apparatus for compact design, and a buffer spring for secure signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the housing is fixed with a fixed axis of rotation, then the device complexity is reduced, but the solid angle of view is limited
Solution Approach 1:
The housing is made dynamically adjustable by introducing a pivot axis that allows the main rotation axis to be tilted. This enables the radar sensor to adapt its viewing direction dynamically, increasing the solid angle of view from a fixed horizontal plane to a three-dimensional sector, while maintaining a relatively simple mechanical structure through a single pivot degree of freedom.
2Area of moving object
If multiple radar sensors are used to cover a wide area, then the solid angle of view is increased, but the device complexity and cost increase
Solution Approach 1:
A single radar sensor housing is designed to perform multiple functions: it can rotate horizontally around a main axis and tilt vertically around a pivot axis. This multi-functionality allows one sensor to replace multiple fixed sensors, reducing overall system complexity while achieving comprehensive area coverage through coordinated rotation and tilting movements.
3Area of moving object
If the housing is made pivotable with a drive unit, then the solid angle of view is increased, but the reliability under rough conditions is reduced
Solution Approach 1:
The housing incorporates a pivot axis with integrated drive unit that enables controlled tilting movement. This dynamic capability allows the sensor to adjust its viewing direction to cover a larger solid angle while the robust mechanical design of the pivot mechanism ensures reliable operation under rough industrial conditions through proper bearing selection and drive unit protection.
Data Source
AI summary
A radar sensor having a frame, a housing arranged at the frame, a transmission and reception unit for high frequency signals arranged within the housing, wherein a radiation direction of the high frequency signals irradiated by the transmission and reception unit is rotatable about an axis of rotation. The radiation direction of the high frequency signals irradiated by the transmission and reception unit is substantially orthogonally oriented toward the axis of rotation, and the housing is supported at the frame rotatably about a pivot axis.