Pivoting Barrier Detection Waves Permeable Material
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Solution Overview
Problem
Existing passage barriers with pivoting blocking elements face challenges in detecting the presence and movement of individuals due to interference from the blocking element itself, requiring additional sensors that are costly and lack precision in position and direction detection.
Innovation Solution
A passage barrier with a pivoting blocking element made of a detection wave-permeable material, such as glass or plastic, and a sensor system using transmitting and receiving devices arranged to ensure detection waves pass through the blocking element, allowing for reliable detection of individuals within the pivoting range, along with an electronic evaluation unit to interpret signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a pivoting blocking element is used to reduce installation space, then the width space requirement is reduced, but the sensor system cannot detect persons within the pivoting range due to interference from the blocking element
Solution Approach 1:
The blocking element is made from a material that is permeable to detection waves (such as certain plastics or glass), allowing detection waves to pass through the blocking element itself. This enables the sensor system to detect persons within the pivoting range by transmitting detection waves through the blocking element, resolving the interference problem while maintaining the space-saving pivoting design
Solution Approach 2:
The blocking element acts as an intermediary that is transparent to detection waves, allowing the sensor system to detect persons through it. The blocking element mediates between the need for physical blocking and the need for sensor detection, enabling both functions to coexist
2Reliability
If motion sensors are used to detect persons in the pivoting range, then detection is possible, but the exact position and direction of movement cannot be determined
Solution Approach 1:
The detection system is segmented into multiple transmitting devices and receiving devices positioned at different locations. By dividing the detection task across multiple sensors rather than using a single motion sensor, the system can determine both position and direction of movement through triangulation and pattern recognition of interrupted detection waves
3Measurement precision
If multiple light barriers are arranged along the passage to detect position and direction, then detection precision is improved, but the space requirement increases
Solution Approach 1:
The functions of multiple light barriers are merged into a single blocking element that is permeable to detection waves. Instead of arranging multiple separate light barriers along the passage, the system uses one or more blocking elements made of wave-permeable material with transmitting and receiving devices that can detect persons throughout the entire pivoting range, reducing installation space while maintaining detection precision
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 solution enables accurate detection of individuals and their movement within the pivoting range with minimal space requirements, improving the precision and cost-effectiveness of the detection system while maintaining a compact design.
Implementation Method 1
at least one pivotable blocking element (34), which is made at least partially from a material which is permeable to detection waves, in particular from glass or plastic
Data Source
Figure 1
Figure 2~3d
AI summary
A passage barrier (10) includes a glass or plastic barrier element (34) that swivels around a swiveling axis inside a swiveling area (38). A sensor detects the presence of a person in the swiveling area and a sending unit (40) emits detection waves. An electronic evaluation unit evaluates the output signals of the sensor. A detection wave from the sending unit towards the reception unit (42) extends through the swivelling area of the barrier element. An independent claim is included for a method for operating a passage barrier.