Door System Object Vector Control for Radar Detection
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Solution Overview
Problem
Existing door systems with radar sensors struggle to accurately determine the movement behavior of objects approaching within a detection region, leading to inefficient door operation and potential self-detection issues.
Innovation Solution
The method involves determining two object positions within the detection region to calculate an object vector, which is used to control the opening of the door leaf, simplifying the process and reducing computational power, allowing for precise determination of opening characteristics such as width, speed, and time, while using a radar sensor or camera for detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If radar sensors are used to detect objects in the detection region, then object detection capability is improved, but determination of movement behavior becomes complex and computationally intensive
Solution Approach 1:
The patent extracts only the essential information needed for door control from the radar sensor data - specifically, two object positions are sufficient to calculate an object vector. This selective extraction of minimal necessary data simplifies the movement behavior determination while maintaining accurate object detection capability.
Solution Approach 2:
The patent changes the parameter representation from complex movement behavior analysis to a simplified object vector calculation based on two positional parameters. This parameter transformation reduces computational complexity while preserving the essential movement information needed for door control decisions.
2Manufacturing precision
If complex algorithms are used to determine door opening characteristics, then door operation precision is improved, but processing time increases
Solution Approach 1:
The patent applies partial action by using only two object positions instead of comprehensive movement analysis to determine door opening characteristics. This partial approach provides sufficient precision for door control while significantly reducing processing time compared to full movement behavior analysis.
Solution Approach 2:
The patent transforms complex door operation parameters into a simplified object vector-based control system. By changing from multiple parameter analysis to vector-based control, the system achieves precise door opening characteristics with minimal processing time.
3Measurement precision
If more sensor data points are processed to improve object tracking, then tracking accuracy is improved, but computational power requirements increase
Solution Approach 1:
The patent extracts only the two essential object positions needed for accurate tracking, discarding excess data points. This selective extraction maintains object tracking accuracy while minimizing computational power requirements by processing only the minimal necessary data.
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 enables efficient and precise control of door leaf opening with reduced hardware and software complexity, minimizing self-detection errors and improving door operation speed.
Implementation Method 1
the approach of an object to the door system within a detection region being detected by means of the sensor unit, in particular designed as a radar sensor or as a camera
Data Source
AI summary
A door system with a door actuator, includes at least one door leaf, and a sensor unit configured and connected to a control unit of the door system, with the approach of an object to the door system within a detection region being detected by the sensor unit, in particular designed as a radar sensor or as a camera. The method includes at least the following steps: determining for the first time at least one first object position of the object within the detection region, determining for the second time at least one subsequent second object position of the object within the detection region, calculating an object vector based on the determined first and second object positions and opening the at least one door leaf depending on the properties of the calculated object vector. A door actuator for carrying out the method and a computer program product are also related.