Laser Scanner Monitoring Area Setup Using Optical Shape Sequences
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Solution Overview
Problem
Current methods for configuring laser scanner monitoring areas are complex and require specialized knowledge, limiting their use to simple geometries and necessitating trained personnel, making them inefficient for quick and intuitive configuration.
Innovation Solution
A system with a sequence generation unit, selection device, and evaluation device that generates and detects distinguishable optical sequences to define monitoring areas, allowing for intuitive configuration without additional hardware or specialized software, enabling the use of shape elements like corners or radii to characterize surveillance areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If configuration is done using personal computer with special software, then monitoring area geometry can be parameterized, but the process requires trained users with specialized knowledge
Solution Approach 1:
The system allows the laser scanner to automatically detect optical sequences from shape elements placed in the monitoring area and autonomously determine the monitoring area geometry without requiring external configuration software or trained operators. The laser scanner performs self-configuration by detecting the optical properties of placed shape elements and automatically computing the monitoring area parameters.
2Device complexity
If configuration is done directly on laser scanner using keys and display, then no additional hardware is needed, but only very simple monitoring area geometries can be configured
Solution Approach 1:
Shape elements with optical sequences serve as intermediaries between the user and the laser scanner configuration system. These physical markers are placed at specific locations to define the monitoring area geometry, and the laser scanner detects their optical properties to automatically determine the configuration, enabling complex geometries without additional configuration hardware.
3Reliability
If traditional configuration methods are used, then monitoring area can be defined, but the process is time-consuming and prone to errors
Solution Approach 1:
The manual mechanical configuration process using keyboards and displays is replaced by an optical detection system. The laser scanner automatically detects optical sequences reflected from or emitted by shape elements and uses evaluation algorithms to determine the monitoring area geometry, significantly reducing configuration time and eliminating manual input errors.
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 quick and intuitive configuration of monitoring areas, reducing errors and allowing for complex geometries to be defined without specialized knowledge, facilitating safe and effective monitoring in various applications.
Implementation Method 1
a change in remission can be brought about at least in one area of the surface. Such a change in remission can be brought about, for example, with the aid of an electromagnetic diaphragm or a liquid crystal diaphragm to produce time-varying shading
Implementation Method 2
If there is an object in the scanning range of the laser, the light emitted by the laser is reflected or remitted and returns to the laser scanner, where it is detected by a receiver
Implementation Method 3
If the laser radiation is pulsed or modulated, the light propagation time of an emitted and possibly reflected light pulse can also be evaluated in order to obtain information about the distance of the reflecting or remitting object via the speed of light
Data Source
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AI summary
The invention relates to a system for configuring a monitoring area of an optoelectronic monitoring device with a sequence generation unit for generating time-varying distinguishable optical sequences and an optoelectronic monitoring device for spatially resolved monitoring of the monitoring area.The optoelectronic monitoring device comprises an optical receiver for detecting an optical sequence generated by the sequence generation unit, a first storage device in which an assignment between the optical sequences selectable at the sequence generation unit and shape elements, which can serve to characterize the shape of a monitoring area to be configured, is stored, a second storage device for storing a shape of a monitoring area, and an evaluation device for determining the shape of a monitoring area from the detected optical sequences and the shape elements stored in the first storage device and assigned to these optical sequences, and for storing the shape of the monitoring area thus determined in the second storage device. The invention further relates to a configuration method that can be carried out with such a system according to the invention.