Industrial Vehicle Range Sensor Calibration Without Repositioning
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Solution Overview
Problem
Existing calibration processes for distance and range measurement devices on industrial vehicles require separate laptops, adapters, and special software, necessitating mechanical repositioning, which is inefficient and prone to errors.
Innovation Solution
A calibration process that adjusts the detection zone of the measurement device without physical repositioning, using yaw and pitch angle measurements to create a modified detection zone, compensating for roll and pitch angle errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional calibration processes using separate laptops, adapters, and special software are used, then calibration can be performed, but the process becomes complex and requires mechanical repositioning
Solution Approach 1:
The patent combines multiple calibration functions into the distance and range measurement device itself, eliminating the need for separate laptops, adapters, and special software. The device now performs self-calibration using its own processing capabilities and onboard sensors, thereby reducing system complexity while maintaining calibration accuracy.
Solution Approach 2:
The measurement device performs self-calibration by using its own emission measurements at different angles and heights to determine detection zone parameters. This self-service approach eliminates the need for external calibration equipment and mechanical repositioning by operators, simplifying the calibration process while ensuring reliability.
2Measurement precision
If mechanical repositioning is used for calibration, then detection zone accuracy can be improved, but the calibration process becomes time-consuming and inefficient
Solution Approach 1:
The patent replaces mechanical repositioning with computational methods. The device takes measurements at fixed physical positions using different emission angles (yaw and pitch) and uses processing to calculate the correct detection zone parameters. This substitution of mechanical adjustment with computational correction maintains measurement precision while eliminating time-consuming manual repositioning.
Solution Approach 2:
The calibration process changes emission parameters (yaw angle and pitch angle) rather than physical device position. By varying the emission angles and using the measured distances and heights to compute detection zone characteristics, the system achieves accurate calibration without mechanical movement, significantly reducing calibration time.
3Measurement precision
If multiple measurements at different angles are taken, then calibration accuracy is improved, but the measurement process becomes more complex
Solution Approach 1:
The patent makes the measurement device multi-functional by enabling it to perform both distance measurement and self-calibration using the same hardware components. The single device takes multiple measurements at different emission angles and uses its processing capabilities to extract calibration parameters, eliminating the need for separate calibration instruments and simplifying the overall measurement process.
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
Enables accurate calibration of distance and range measurement devices on industrial vehicles without additional hardware or technicians, reducing errors and improving operational efficiency.
Implementation Method 1
a distance and range measurement device (e.g., laser scanners, 3-D cameras, light detection and ranging (LIDAR) devices, etc.)
Data Source
AI summary
Processes and systems for calibrating a distance and range measurement device coupled to an industrial vehicle are disclosed. The calibration requires no physical movement of the distance and range measurement device. Instead, actual measurements from the device are used with nominal detection zones and nominal measurements to create modified detection zones to detect objects within the modified detection zones.