Radar Sensor Mounting Frames for Precise Fascia Positioning
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Solution Overview
Problem
Current radar sensor test rigs lack flexibility and control in mounting vehicle parts, such as fascia, relative to the sensor, restricting the range of motion and increasing cost and weight with complex configurations.
Innovation Solution
A sensor mounting apparatus comprising a system of three frames that allow for independent movement of a vehicle part relative to the sensor in at least three degrees of freedom, including forward and back, left and right, up and down, roll, yaw, and pitch, using threaded elements and guide rods for precise adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a complex mounting configuration is used to increase the range of motion of fascia relative to the sensor, then the flexibility and control for verification tests is improved, but the cost and weight increase
Solution Approach 1:
The mounting device is divided into separate functional components: a sensor mounting device for the radar sensor and a vehicle part mounting device for the fascia. Each component can be independently adjusted, allowing the fascia to move in multiple directions (forward/backward, left/right, up/down, roll, yaw, pitch) relative to the sensor without requiring a single complex integrated structure. This segmentation reduces overall system weight while maintaining full adjustability.
2Adaptability or versatility
If a complex mounting configuration is used to increase the range of motion of fascia relative to the sensor, then the flexibility and control for verification tests is improved, but the device complexity increases
Solution Approach 1:
The system separates the sensor mounting function from the vehicle part mounting function into two independent devices. The vehicle part mounting device includes multiple adjustment mechanisms (threaded elements for linear movement, pivot points for rotational movement) that enable comprehensive fascia positioning. This modular segmentation makes each component simpler to design, manufacture, and adjust compared to a single complex integrated mounting system.
3Measurement precision
If the vehicle part mounting device is automated with servo motors, then the precision and speed of adjustment is improved, but the cost and weight increase
Solution Approach 1:
The vehicle part mounting device incorporates manual adjustment mechanisms including threaded elements that allow operators to precisely position the fascia by hand, and pivot points that enable intuitive rotational adjustment. These self-service mechanical adjustment systems achieve the required positioning precision without requiring expensive automated servo motors, thereby reducing manufacturing cost and device weight while maintaining adequate measurement precision for radar verification tests.
Data Source
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AI summary
A sensor mounting apparatus 10 and associated method, e.g. for use in testing of a vehicle radar sensor in an anechoic chamber. The apparatus features a sensor mounting device 11 for mounting the radar sensor and a vehicle part mounting device comprised of first 12, second 13 and third 14 frames. Each frame is movable in a different direction relative to the sensor and each other frame, e.g. either: adjustable forward and back, left and right, up and down, and/or via roll, yaw and pitch. The outermost third frame 14 further includes an attachment means for holding a vehicle part (e.g. a vehicle fascia/bumper) in place and provision for further adjustment of the part relative to the sensor in use, e.g. via a pivot mounting enabling yaw movement.