Projection Sensor Device for 3D Spatial Mapping
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Solution Overview
Problem
Current devices for aligning and measuring objects, such as cross-line laser devices and optical distance measuring devices, are limited in their ability to detect complex light patterns and provide spatial information, particularly for three-dimensional objects, and do not offer comprehensive support for tasks like surveying, planning, and marking indoors.
Innovation Solution
A device combining projection means with sensor and logic means to detect and evaluate complex light patterns on two- and three-dimensional objects, allowing for precise spatial and dimensional information determination, including the ability to recognize object structures and project useful light patterns for measurement and planning tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If cross-line laser devices are used to project horizontal and vertical laser lines, then it becomes easier to align tiles and windows, but the devices are limited in detecting complex light patterns and providing spatial information for three-dimensional objects
Solution Approach 1:
The device combines projection means for creating light patterns with sensor means for detecting them, enabling multiple functions including alignment, measurement, and spatial mapping in a single system. This allows the device to handle both simple alignment tasks and complex three-dimensional object analysis.
Solution Approach 2:
Light objects serve as an intermediary between the projection means and sensor means, carrying spatial and dimensional information from the projected patterns back to the sensing system for evaluation and measurement.
2Measurement precision
If optical distance measuring devices are used to determine distances, then distance measurement is possible, but they cannot detect complex light objects or provide comprehensive spatial information
Solution Approach 1:
The system transitions from one-dimensional point-based distance measurement to two-dimensional and three-dimensional spatial mapping by projecting and detecting complex light patterns across surfaces, enabling comprehensive geometric information extraction.
Solution Approach 2:
The projection means projects light objects onto the object surface before detection, preparing the scene in advance so that the sensor means can capture spatial and dimensional information that would otherwise be inaccessible through simple distance measurement.
3Ease of operation
If projection means are used to project light objects onto objects, then visual guidance for alignment is provided, but the ability to automatically evaluate and determine spatial information is limited
Solution Approach 1:
The sensor means detects the projected light objects and feeds this information back to the logic means for automatic evaluation, creating a closed-loop system that combines visual guidance with automated spatial analysis and measurement.
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 precise three-dimensional measurements, automatic room mapping, and enhanced support for users in surveying, planning, and marking tasks, with the ability to determine deviations from planarity and project evaluation results for accurate alignment and measurement.
Implementation Method 1
projection means (7) for projecting light objects (8) onto two-dimensional objects (in particular wall surfaces) or three-dimensional objects
Implementation Method 2
the sensor means must be designed in such a way that they detect the light objects projected onto the object, preferably complex ones, i.e. the light emitted by the projection means and reflected again
Data Source
Figure 1
AI summary
The invention relates to a device (1) comprising a projection means for projecting light objects (8) onto a two-dimensional or three-dimensional object (2). According to the invention, sensor means (11) adapted to optically detect large areas of the light objects (8) projected onto the object (2) are provided, said sensor means being connected to logic means (12) in a signal-conducting manner for evaluating the sensor information.