Adjustable Security Sensor With Controllable Flaps
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Off-the-shelf electromagnetic sensors lack the ability to control the range of distances from which they intercept energy, leading to unwanted detection of objects beyond the intended range, such as detecting people entering a different door when installed near one door.
Innovation Solution
An adjustable electromagnetic sensor design featuring a surface with multiple electromagnetic radiation interception areas, controllable flaps, and lenses of varying focal lengths, allowing for dynamic control of the depth of focus by covering specific areas to limit detection range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sensor intercepts energy from a wide range of distances, then the sensor can detect objects at various distances, but the sensor detects unwanted objects beyond the intended range
Solution Approach 1:
The sensor surface is divided into multiple discrete interception areas (first, second, third areas) that can be independently controlled. By selectively covering or uncovering specific segments, the sensor can precisely control which distance ranges are detected, eliminating unwanted detections while maintaining the ability to detect objects at intended distances.
Solution Approach 2:
The patent employs movable flaps that can dynamically adjust the coverage over different interception areas. This dynamic control mechanism allows the sensor to adapt its detection range in real-time, switching between detecting near objects, far objects, or specific distance ranges as needed, thereby resolving the contradiction between wide adaptability and precise measurement.
2Measurement precision
If the sensor is installed to detect objects at a specific distance, then the detection accuracy is improved, but the sensor cannot detect objects at other distances when needed
Solution Approach 1:
The sensor system is designed with multiple interception areas and adjustable flaps that enable a single sensor to perform multiple detection functions. By adjusting the flap positions, the same sensor can be configured to detect objects at various distances (near, far, or specific ranges), making it a universal solution that replaces the need for multiple fixed-purpose sensors.
Solution Approach 2:
The patent changes the operational parameters of the sensor by selectively activating different interception areas through the flap mechanism. By changing which areas are exposed to radiation, the effective detection range parameter is adjusted, allowing the sensor to switch between different detection modes (short range, long range, or specific distance) while maintaining high detection accuracy for the selected range.
3Use of energy by moving object
If the sensor covers a large surface area, then more radiation is intercepted, but the detection range cannot be controlled
Solution Approach 1:
The large sensor surface is segmented into multiple independent interception areas, each associated with specific distance ranges. The flap mechanism allows selective coverage of these segments, enabling the system to intercept radiation efficiently from the exposed areas while controlling the detection range. This segmentation provides installation flexibility as the sensor can be configured for different applications by adjusting which segments are active.
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 control over the detection range of the sensor, ensuring it only detects objects within a specified distance, enhancing installation flexibility and accuracy.
Implementation Method 1
One of the plurality of lenses has a certain focal length and focuses electromagnetic radiation to at least one of the plurality of different electromagnetic radiation interception areas. Another of the plurality of lenses has a different focal length and focuses electromagnetic radiation to at least one other of the plurality of different electromagnetic radiation interception areas.
Implementation Method 2
a plurality of lenses located in front of the electromagnetic sensor, each having a different focal length
Implementation Method 3
one or more controllable flaps, adapted to cover one or more of the plurality of different electromagnetic radiation interception areas thus limiting a distance from the sensing device at which an object can be captured
Data Source
AI summary
A sensing device comprising an electromagnetic sensor having a surface with a plurality of different electromagnetic radiation interception areas arranged one above the other, one or more controllable flaps adapted to cover one or more of the different electromagnetic radiation interception areas preventing the electromagnetic sensor from intercepting electromagnetic radiation on the covered electromagnetic radiation interception areas, at least one control mechanism adapted to maneuver the controllable flaps so as to change the covered electromagnetic radiation interception areas and a plurality of lenses located in front of the electromagnetic sensor, each having a different focal length. One of the lenses has a certain focal length and focuses electromagnetic radiation to at least one of the different electromagnetic radiation interception areas, and another of the lenses has a different focal length and focuses electromagnetic radiation to another electromagnetic radiation interception area.