LiDAR Mounting Bracket for Vehicle Windshield Stability
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Solution Overview
Problem
Existing technologies face challenges in stably mounting lidar on vehicle windshields due to size and weight differences compared to cameras, leading to poor mounting stability and resonance noise, and the accuracy of detection signals cannot be guaranteed.
Innovation Solution
A lidar built-in mounting device with a mounting bracket that includes a substrate and support, fixedly connected to the vehicle window glass, allowing the lidar to be oriented towards the glass for stable mounting and ensuring detection accuracy, featuring a mounting surface angled to maintain a horizontal position and incorporating vibration-damping elements to reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If lidar is mounted on vehicle windshield using existing camera mounting methods, then the mounting process is simple, but the mounting stability is poor due to size and weight differences
Solution Approach 1:
The mounting bracket is divided into multiple components: a substrate for attachment to the windshield, a support structure for holding the lidar, and a connecting portion linking them. This segmentation allows each component to be optimized independently - the substrate can be designed for stable windshield attachment while the support structure provides appropriate mechanical support for the lidar's weight and size, resolving the contradiction between simple mounting process and mounting stability.
2Measurement precision
If lidar is mounted close to the windshield to reduce signal absorption, then detection accuracy improves, but resonance noise increases due to vibration transmission
Solution Approach 1:
The mounting bracket acts as an intermediary structure between the windshield and the lidar. It positions the lidar close to the windshield (within 5mm) to minimize signal absorption and improve detection accuracy, while simultaneously providing mechanical isolation to reduce resonance noise transmission, thus resolving the contradiction between detection accuracy and resonance noise.
3Stability of the object's composition
If mounting bracket uses more materials to increase stability, then mounting stability improves, but device complexity and material use increase
Solution Approach 1:
The mounting bracket utilizes parameter changes in material properties, specifically employing a damping coefficient between 0.05 and 0.2 for the substrate material. This parameter optimization allows the bracket to achieve adequate mounting stability with minimized material usage, avoiding excessive complexity while maintaining necessary stability through scientifically optimized material parameters.
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
The solution ensures stable mounting and improved detection accuracy of lidar on vehicle windshields, reducing resonance noise and signal absorption, while minimizing material use and design complexity.
Implementation Method 1
the mounting plate and/or the supporting plate is provided with at least one vibration-damping through hole
Implementation Method 2
the mounting bracket is provided with a first light shielding cover connected to the substrate, the first light shielding cover is provided on the second surface and protrudes upwards in a direction away from the second surface
Implementation Method 3
the lidar built-in mounting device further includes a heating member provided on the first light shielding cover
Data Source
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Figure 5~6
AI summary
The present application relates to a LiDar built-in mounting device and a vehicle. The LiDAR built-in mounting device comprises a mounting bracket (10). The mounting bracket (10) comprises a substrate (11) and a support (12) connected to the substrate (11). The substrate (11) has a first surface (111) and a second surface (112) which are arranged opposite each other. The first surface (111) is configured to fixedly connect to an inner surface of window glass (20), and the support (12) is arranged on the second surface (112). The support (12) is provided with a mounting surface (1211) configured to mount a LiDAR (30).