Distance Detection Device With Overlapping Fields Of View
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Solution Overview
Problem
High-speed motors in laser distance measuring devices cause vibrations, reducing the accuracy of distance measurements due to mechanical instability during high-density and high-resolution three-dimensional spatial scanning.
Innovation Solution
A distance detection device with multiple distance measuring assemblies housed in a single unit, where each assembly has an overlapping field of view, allowing for increased scanning resolution and stability by decoupling the scanning module from the distance measuring module, thereby reducing vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a high-speed motor is used to deflect and scan the optical path for high-density and high-resolution three-dimensional spatial scanning, then the scanning speed and resolution are improved, but the vibration of the distance measuring device increases, reducing measurement accuracy
Solution Approach 1:
The device is divided into multiple independent distance measuring assemblies, each with its own field of view. This segmentation allows the scanning function to be distributed across multiple fixed assemblies rather than requiring a single high-speed rotating motor, thereby reducing vibration while maintaining scanning capability through the arrangement of multiple viewing angles.
Solution Approach 2:
The scanning function is extracted from the distance measuring module. Instead of using a motor to physically scan the optical path, the patent uses multiple fixed distance measuring assemblies arranged at different angles, each independently measuring distance in its own field of view. This separates the scanning function (achieved through spatial arrangement) from the measurement function, eliminating the vibration caused by high-speed motors.
2Adaptability or versatility
If a high-speed motor is used to deflect and scan the optical path, then high-density and high-resolution three-dimensional spatial scanning is achieved, but the mechanical stability of the device deteriorates due to greater vibration
Solution Approach 1:
The three-dimensional scanning capability is achieved by segmenting the measurement space into multiple fields of view, each covered by a fixed distance measuring assembly. The assemblies are arranged spatially to provide overlapping coverage, enabling comprehensive three-dimensional scanning without requiring mechanical movement of individual components.
Solution Approach 2:
Multiple fixed distance measuring assemblies are combined to achieve the three-dimensional scanning function that would traditionally require a single moving assembly. By merging the capabilities of multiple stationary units with overlapping fields of view, the system achieves comprehensive spatial coverage while maintaining mechanical stability.
Data Source
AI summary
The present disclosure provides a distance detection device. The distance detection device includes a housing; and a plurality of distance measuring assemblies disposed in the housing. Two adjacent distance measuring assemblies have overlap field of views. Each distance measuring assembly is configured to measure a distance from an object to be detected in the corresponding field of view to the distance detection device.