Dual-Laser Ranging Layout for Remote Zero-Baseline Marking
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Solution Overview
Problem
Laser ranging devices face inconvenience in marking due to difficulties in positioning the device close to the object to be marked, especially in complex and changing terrains, making it challenging to illuminate and mark the object accurately.
Innovation Solution
The laser ranging device employs a first laser emitting portion for distance measurement and a second laser emitting portion that projects a sector-shaped laser light curtain perpendicular to the first direction, allowing for marking without physically approaching the object, using a control portion to determine the zero position remotely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the laser ranging device is placed close to the object to be marked, then the marking precision is improved, but the device cannot illuminate the object to be measured in complex terrains
Solution Approach 1:
The patent divides the laser emitting function into two separate laser emitting portions: a first laser emitting portion for distance measurement and a second laser emitting portion for marking. This segmentation allows each laser to be optimized for its specific function and positioned independently, resolving the contradiction between marking precision and illumination capability in complex terrains
Solution Approach 2:
The second laser emitting portion emits laser light in a direction perpendicular to the first direction (along the second direction), creating a sector-shaped laser light curtain that projects onto the object to be marked. This dimensional change allows the marking function to operate independently from the measurement illumination function, enabling both functions to work simultaneously without spatial conflict
2Illumination intensity
If the laser ranging device illuminates the object to be measured, then the measurement function is improved, but the device cannot get close to the object to be marked in complex terrains
Solution Approach 1:
The patent segments the laser system into two independent emitting portions with separate optical paths and controlling units, allowing the first laser to provide illumination for measurement while the second laser performs marking from a different position and angle, thus resolving the spatial conflict in complex terrains
Solution Approach 2:
The laser ranging device integrates multiple functions (distance measurement and marking) into a single device through the dual laser configuration. The first laser handles measurement illumination and the second laser handles marking, allowing the device to perform both functions simultaneously or independently, enhancing versatility while maintaining marking precision
3Device complexity
If a single laser is used for both measurement and marking, then the device complexity is reduced, but the marking and measurement functions cannot be performed simultaneously with optimal performance
Solution Approach 1:
The patent divides the laser system into two independent emitting portions, each with its own controlling unit and optical path. This segmentation enables simultaneous operation of marking and measurement functions with optimized performance for each task, while the integrated housing and control system maintain reasonable device complexity
Solution Approach 2:
The controlling unit can dynamically switch between different operating modes (measurement mode, marking mode, or simultaneous operation) and adjust the parameters of each laser independently. This dynamic control allows the device to adapt to different operational requirements while maintaining optimal performance for each function
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 distance measurement and marking without requiring physical proximity to the object, enhancing usability in complex environments by compensating for terrain limitations.
Implementation Method 1
a first laser emitting portion configured to emit a first laser along a first direction to an object to be measured
Implementation Method 2
a laser receiving portion configured to receive a reflected laser reflected by the object to be measured along the first direction
Implementation Method 3
a second laser emitting portion configured to emit a second laser along a second direction, the second laser sequentially passing through the second optical lens and the second light outlet to form a sector-shaped laser light curtain
Implementation Method 4
the second laser sequentially passing through the second optical lens
Data Source
AI summary
A laser ranging device includes a housing portion, a first laser emitting portion, a laser receiving portion, a second laser emitting portion, and a control portion. The housing portion is provided with a first light outlet and a second light outlet. The first laser emitting portion is configured to emit a first laser along the first direction to an object to be measured. The laser receiving portion is configured to receive a laser reflected by the object to be measured along the first direction. The second laser emitting portion is configured to emit a second laser along a second direction, the second laser sequentially passes through the second optical lens and the second light outlet to form a sector-shaped laser light curtain, and the sector-shaped laser light curtain is projected onto the object to be marked and forms a zero baseline on the object to be marked.