Four-Wheel Alignment Laser-Camera Layout to Prevent Tipping
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Solution Overview
Problem
The center of gravity of conventional four-wheel alignment measuring devices deviates too far from the tire, leading to a high risk of device flipping and damage during measurements.
Innovation Solution
A four-wheel alignment measuring device with a support base and rod configuration, where the laser device is positioned close to the tire and the camera device is inclined, forming a specific angle with the support base, to maintain the center of gravity closer to the tire, reducing the risk of flipping and improving measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the camera device and laser device are connected to the lift through a connector with the center of gravity far from the tire, then the measurement function is achieved, but the device easily flips over causing damage
Solution Approach 1:
The patent applies counterweight principle by positioning the laser device on the support base near the tire area, creating a weight distribution that counteracts the tipping moment. The support rod with camera device extends upward while the laser device and power supply on the base provide downward force closer to the tire, balancing the center of gravity to prevent flipping during measurement operations.
2Measurement precision
If the camera device is positioned at a predetermined distance from the tire, then accurate measurement is obtained, but the device structure becomes complex and unstable
Solution Approach 1:
The patent segments the measurement device into distinct functional modules: a support base for stability and power supply, a support rod for positioning, a camera device for image capture, and a laser device for projection. This segmentation allows each component to be optimized independently - the base provides stable grounding while the rod provides adjustable positioning, achieving measurement precision without requiring an overly complex integrated structure.
3Ease of operation
If the center of gravity is positioned far from the tire, then the device has sufficient leverage for measurement, but the risk of flipping increases significantly
Solution Approach 1:
The patent resolves the leverage-stability contradiction by transitioning to a vertical dimension. Instead of extending the support horizontally to gain leverage (which increases flipping risk), the support rod extends vertically upward from the base. This vertical arrangement provides the necessary measurement leverage through height while maintaining a compact horizontal footprint that keeps the center of gravity stable and prevents flipping.
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 device design enhances measurement accuracy and reduces the likelihood of flipping, ensuring stable and precise alignment measurements by keeping the center of gravity aligned with the tire, thus protecting the device and improving operational stability.
Implementation Method 1
a laser device configured to project a laser image toward a tire surface
Implementation Method 2
the camera device being configured to acquire the laser image and obtain alignment information of the tire using the laser image
Data Source
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AI summary
Provided are a four-wheel alignment measuring device and a four-wheel alignment apparatus, the four-wheel alignment measuring device including: a support base, a support rod connected to the support base, a laser device, and a camera device arranged on the support rod. A lengthwise direction of the support rod and a lengthwise direction of the support base form a first inclination angle, the laser device is configured to project a laser image toward a surface of a tire, and the camera device is configured to acquire the laser image and obtain alignment information of the tire using the laser image. The above design takes into account the projection range of the laser device, the center of gravity of the laser device close to the tire, and the angle between the laser image projected by the laser device and the camera device, thereby improving the accuracy of the measurement results, reducing the possibility of flipping of the four-wheel alignment measuring device, and enhancing the safety performance.