Adjustable LiDAR Sensor Bracket for Semi-Trailer Angle Detection

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Solution Overview

Problem

The detection of the trailing angle in semi-trailers is challenging due to the inability to adjust LiDAR sensors mounted on the original vehicle structure, leading to inaccurate data collection on reflecting plates, especially on bumpy roads.

Innovation Solution

A sensor bracket with a first cross beam mounted to the tractor's frame cross beam, vertical beams perpendicularly attached, and a second cross beam sliding along grooves, allowing adjustable mounting and positioning of LiDAR sensors to match the trailer's reflecting plates.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If LiDAR sensors are mounted on the original vehicle structure, then the mounting structure is simple and stable, but the sensor position cannot be adjusted leading to inaccurate detection

Engineering Contradiction:
Improvetrailing angle detection accuracyVSAvoidmounting structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by transforming the fixed mounting structure into an adjustable one. The bracket includes sliding grooves on vertical beams and corresponding sliding blocks on cross beams, allowing the sensor mounting position to be dynamically adjusted in multiple directions (up-down via first sliding grooves, left-right via second sliding grooves). This enables precise positioning of LiDAR sensors to match reflecting plates while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the sensor bracket structure is simplified for easy mounting, then the mounting process is convenient, but the adjustment capability for sensor positioning is limited

Engineering Contradiction:
Improvesensor mounting convenienceVSAvoidsensor position adjustment range
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the adjustment mechanism into independent directional components. The bracket structure separates adjustment functions into vertical adjustment (via first sliding grooves on vertical beams) and horizontal adjustment (via second sliding grooves on vertical beams), with each direction having its own sliding mechanism. This segmented approach allows easy mounting while providing comprehensive adjustment capability in multiple dimensions.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If multiple sensors are mounted on the bracket, then the detection coverage is improved, but the structural stability may be compromised

Engineering Contradiction:
Improvesensor mounting capacityVSAvoidbracket structural stability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies universality by designing the bracket structure to serve multiple functions simultaneously. The same bracket framework supports both structural stability (through the rigid connection of cross beams and vertical beams) and multi-sensor mounting capability (through multiple adjustable cross beams with sliding mechanisms). The sliding groove design allows different numbers and types of sensors to be mounted while maintaining structural integrity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS12545065B2Sensor bracket and vehicle
Publication Date: 2026.02.10 BEIJING TUSEN WEILAI TECH CO LTD
  • US12545065B2 patent drawing
  • US12545065B2 patent drawing
  • US12545065B2 patent drawing

AI summary

The present document describes a sensor bracket and a vehicle, the sensor bracket comprising: a first cross beam, the first side thereof being mounted to the frame cross beam of a tail portion of a tractor; at least two vertical beams perpendicularly mounted to the first cross beam; and a second cross beam located below the first cross beam and connecting at least two vertical beams; wherein each of the vertical beams has a first sliding groove and the second cross beam is operable to slide up and down along the first sliding grooves. The sensor bracket of the present application has a simple structure and stable performance, and adopts the frame cross beam of the original vehicle for mounting, making it easy to operate, easy to replace, and easy to adjust.