Radar Calibration Laser Mount for Concealed Sensor Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current radar calibration devices are not applicable across various radar types and lack high accuracy, particularly for concealed radars on vehicle bumpers, due to their bulkiness and imprecision.
Innovation Solution
A radar calibration device with a housing mounted onto the radar sensor's mounting bracket, utilizing at least two lasers emitting converging beams at specific angles, optionally deflected by mirrors, and powered by the vehicle's electrical system, ensuring precise alignment and calibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single-beam laser pointer is used for calibration, then the device can be simple, but the measurement precision and accuracy are insufficient
Solution Approach 1:
The patent combines multiple lasers (at least two) into a single calibration device, merging their functions to achieve high-precision measurement. The multiple lasers work together to provide reference beams for accurate radar calibration, resolving the contradiction by integrating multiple light sources rather than using a single laser pointer.
Solution Approach 2:
The calibration device is designed to be universally applicable to different radar types and mounting configurations. The housing can be mounted on various mounting brackets, and the device accommodates different laser arrangements, making it a multi-functional tool that works across different vehicle and radar configurations.
2Measurement precision
If existing calibration apparatus with steel sleeves is used, then alignment can be achieved, but the device becomes bulky and does not fit in limited spaces
Solution Approach 1:
The calibration device employs a nested structure where the housing is designed to fit onto existing mounting brackets. The compact design allows the calibration apparatus to be nested within or attached to the vehicle's existing mounting structure, significantly reducing the overall volume required while maintaining alignment accuracy.
Solution Approach 2:
The device is segmented into modular components including a housing that attaches to the mounting bracket and separate laser units. This segmentation allows for a compact overall structure that can be assembled in limited spaces while maintaining the precision required for calibration.
3Measurement precision
If calibration devices are designed for specific radar types, then they can be optimized for that type, but they lack adaptability across various radar types
Solution Approach 1:
The calibration device is designed with universal mounting capabilities that allow it to be attached to different types of mounting brackets used with various radar sensors. The housing and mounting mechanism are configured to accommodate multiple radar types and vehicle configurations, making the device versatile while maintaining calibration accuracy across different applications.
4Measurement precision
If manual adjustment of laser pointers is required, then the process becomes cumbersome and time-consuming, but precision can be achieved through careful adjustment
Solution Approach 1:
The device is pre-configured with multiple lasers positioned and oriented correctly before use. The mounting bracket integration provides pre-established alignment references, eliminating the need for time-consuming manual adjustments during the calibration process while maintaining high precision through the pre-arranged laser geometry.
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
Enhances calibration accuracy and efficiency by adapting to different vehicle configurations, reducing setup time, and ensuring high precision in radar sensor alignment, particularly for concealed radars.
Implementation Method 1
at least two lasers; wherein the housing is adapted to be mounted onto the mounting bracket of a radar sensor of a vehicle
Implementation Method 2
the housing comprises at least one deflection portion, preferably a mirror, to deflect the laser beams
Data Source
Figure 1~2
Figure 3~4B
AI summary
A radar calibration device for calibrating radar sensors in vehicles, in particular passenger cars, comprises a housing; at least two lasers; wherein the housing is adapted to be mounted onto the mounting bracket of a radar sensor of a vehicle. A method of calibrating a radar device in vehicles, in particular passenger cars, comprises the steps of a.) providing: a radar calibration device according to any of the preceding claims 1 to 8; a calibration target; and a radar device to be calibrated, mounted on a vehicle; b.) exchanging the radar calibration device for the radar device; c.) operating the lasers with the laser beams pointing to the calibration target; d.) measuring a deviation between the points projected by the laser beams and a target value; and e.) calibrating the radar device utilizing the deviation.