Vehicle Sensor Mount With Rotational Angle Locking for Calibration
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Solution Overview
Problem
Current sensor assemblies for automatic driving vehicles, such as cameras and radars, require precise angular accuracy for calibration, which is often compromised due to installation inaccuracies, leading to calibration failures.
Innovation Solution
A sensor assembly with a positioning bracket and a sensor body featuring rotatable shafts and a toothed structure with a detent mechanism, allowing for adjustable angular positioning without additional tools, ensuring stable fixation and accurate calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional fixed installation methods are used for sensors, then the installation process is simple, but the angular accuracy cannot meet calibration requirements
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed installation structure into a rotatable one. The sensor body is equipped with a rotatable component that can rotate relative to the mounting bracket, allowing the sensing surface to be adjusted to different angles. This dynamic adjustment capability enables precise angular positioning while maintaining a relatively simple overall structure, thus resolving the contradiction between angular accuracy and structural complexity.
2Measurement precision
If adjustable angular positioning is implemented, then calibration accuracy is improved, but the device complexity increases
Solution Approach 1:
The patent applies the self-service principle through the self-locking mechanism. The positioning component features a toothed structure with corresponding detent notches that automatically lock the sensor at specific angular positions without requiring additional tools or complex fastening mechanisms. The sensor body's own structural features (teeth and notches) perform the locking function, simplifying the overall positioning mechanism while ensuring precise angular calibration.
3Reliability
If precise angular positioning is achieved through complex mechanisms, then calibration success rate increases, but the ease of operation decreases
Solution Approach 1:
The self-locking mechanism with toothed structure and detent notches allows the sensor to be positioned and locked automatically without requiring complex tools or procedures. The operator simply needs to rotate the sensor to the desired angle, and the self-locking feature ensures it remains fixed, thereby maintaining high ease of operation while achieving reliable calibration results.
Data Source
AI summary
The disclosure relates to a sensor assembly for a vehicle, comprising: a sensor body; and a positioning bracket for positioning the sensor body. A first rotary shaft and a second rotary shaft are respectively provided on the opposing first and second sides of the sensor body, and the first rotary shaft and the second rotary shaft are respectively rotatably accommodated in a first rotary shaft receiving portion and a second rotary shaft receiving portion provided on the positioning bracket so as to achieve the rotation of the sensor body relative to the positioning bracket. A toothed structure is provided on a third side of the sensor body, other than the first side and the second side, and a detent structure is correspondingly provided on the positioning bracket, and when the sensor body rotates to a desired angle relative to the positioning bracket, fixing of the sensor body relative to the positioning bracket is enabled by means of the engagement between the toothed structure and the detent structure. The disclosure further relates to a vehicle comprising the sensor assembly.