Optoelectronic Sensor Array with Dynamic Light Sensitivity Control
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Solution Overview
Problem
Existing optoelectronic sensor devices, such as laser scanners and Lidar systems, face limitations in flexibility and variability, particularly in masking out regions to avoid overexposure, which requires laborious and inflexible diaphragm adjustments and additional structural space, and cannot adapt to changing object arrangements or brightness distributions.
Innovation Solution
The optoelectronic sensor device features a divisible array with adjustable light sensitivity for receiving elements, allowing dynamic adaptation to different brightness levels and object distances, enabling flexible masking and reducing the risk of overexposure through a control device that adjusts light sensitivity and gain settings for each element, eliminating the need for fixed diaphragms and additional structural components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed diaphragm or light-nontransmissive strip is used to mask out regions, then overexposure is avoided, but the device loses flexibility and requires additional structural space
Solution Approach 1:
The patent applies dynamics by making the masking capability adjustable and reconfigurable through software control rather than fixed physical structures. The receiving elements can be dynamically masked by adjusting their light sensitivity or switching them off based on real-time brightness detection, allowing the system to adapt to changing object arrangements and brightness distributions without physical reconfiguration.
Solution Approach 2:
The patent changes the parameter of light sensitivity for individual receiving elements based on detected brightness levels. By adjusting the light sensitivity parameter dynamically, the system can prevent overexposure in bright regions while maintaining normal operation in other regions, eliminating the need for fixed physical masks and enabling flexible adaptation to different monitoring scenarios.
2Reliability
If a diaphragm mounting is used to mask regions, then overexposure is prevented, but laborious adjustments and additional structural space are required
Solution Approach 1:
The patent extracts the masking function from physical diaphragms and mounting structures and implements it through software control of receiving element sensitivity. By taking out the physical masking components and replacing them with electronic control, the system prevents overexposure without requiring additional structural space or complex mechanical assemblies.
Solution Approach 2:
The patent replaces the mechanical system of diaphragms and mounting devices with an electronic/software-based system that controls light sensitivity of receiving elements. This substitution eliminates the need for physical masking components and their associated structural requirements, simplifying the overall device architecture.
3Reliability
If fixed masking regions are used, then overexposure is avoided, but the system cannot adapt to changing object arrangements or brightness distributions
Solution Approach 1:
The patent implements feedback by continuously detecting the brightness of received radiation at each receiving element and using this information to dynamically adjust light sensitivity or mask regions. This feedback mechanism enables the system to automatically adapt to changing object arrangements and brightness distributions, maintaining overexposure prevention while responding to real-time conditions.
Solution Approach 2:
The patent makes the masking regions dynamic and reconfigurable based on real-time brightness detection. Instead of fixed masking areas, the system dynamically determines which regions need masking by detecting brightness levels and adjusting receiving element sensitivity accordingly, enabling continuous adaptation to changing monitoring conditions.
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
This approach enhances the sensor's flexibility and adaptability, preventing overexposure and allowing continuous detection with reduced light sensitivity, improving signal quality and eliminating the need for dedicated diaphragms and laborious adjustments, thereby improving the sensor's performance in dynamic monitoring environments.
Implementation Method 1
a receiving device for receiving the backscattered light after the scattering of the emitted light beam at the object to be measured
Data Source
AI summary
A flexibly usable optoelectronic sensor device for detecting an object, comprising a receiving device for receiving light backscattered after the scattering of an emitted light beam at the object, wherein the receiving device has an array of at least two receiving elements for detecting radiation and a receiving optical unit for imaging the received radiation on the array; the array is divisible and/or divided into at least two array regions, wherein the at least two array regions correspond in each case to scatterings at objects at different distances from the monitoring region and/or different brightnesses of the received radiation, and the receiving elements respectively arranged in different array regions are settable and/or set to detect with mutually different light sensitivities.