Radar Access Control With Alternating ROI Detection Cycles
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Solution Overview
Problem
Existing radar systems face challenges in efficiently monitoring complex access paths to hazardous devices, leading to excessive computational burdens and delays in target signalling when trying to cover multiple regions of interest with complex shapes.
Innovation Solution
A method and system that utilize a single radar sensor to detect target access to multiple regions of interest by alternating detection cycles between these regions, reducing the computational burden and allowing for more complex shapes to be monitored without significant delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single radar sensor covers multiple complex-shaped regions of interest simultaneously, then the monitoring coverage and shape versatility are improved, but the computational burden increases excessively causing delays in target signalling
Solution Approach 1:
The patent divides the monitoring task into separate detection cycles for different regions of interest. Instead of processing all regions simultaneously, the radar sensor alternates between detecting targets in the first region and the second region, with each region processed in dedicated time slots. This segmentation of the detection process reduces the computational load per cycle while maintaining comprehensive monitoring coverage
Solution Approach 2:
The patent implements periodic alternating detection cycles between multiple regions of interest. The radar sensor switches between detecting the first region and the second region in a periodic manner, with each region receiving dedicated detection cycles. This periodic action allows the system to maintain monitoring of multiple complex-shaped regions without requiring simultaneous processing, thereby reducing computational burden and preventing delays in target signalling
2Adaptability or versatility
If multiple radar sensors are installed to cover complex access paths, then the monitoring capability is improved, but the device complexity and cost increase
Solution Approach 1:
The patent enables a single radar sensor to perform multiple detection functions by alternating between different regions of interest. The same radar sensor that detects targets in the first region also detects targets in the second region, making it a multi-functional device. This eliminates the need for separate radar sensors for each region, reducing device complexity and cost while maintaining comprehensive monitoring capability
3Adaptability or versatility
If complex-shaped regions of interest are monitored, then the shape versatility is improved, but the computational burden increases requiring greater calculation capacity and cost
Solution Approach 1:
The patent segments the detection process into separate cycles for different regions, allowing each region to be processed independently. This segmentation reduces the computational burden on the radar sensor by avoiding simultaneous processing of multiple complex-shaped regions, thereby reducing the required calculation capacity and associated costs while maintaining the ability to monitor complex access paths
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 monitoring of complex access paths with reduced computational load, minimizing delays in target signalling and maintaining system safety by ensuring timely activation of safety measures.
Implementation Method 1
The sensors used for this purpose include photoelectric barriers, laser scanners and radars. Radar sensors have advantages in terms of flexibility and robustness in hostile environments
Data Source
AI summary
A set of one or more radar sensors controls accesses of targets to an environment with a hazardous device. The radar sensors start the detection in a first region of interest in an access path to the environment. Upon the detection of a target, the hazardous device is commanded a first safety measure, the detection in the first region of interest is interrupted, and the detection is started at a second region of interest arranged more internally than the first region of interest. Upon the detection of a target in the second region of interest, a second safety measure is activated. Instead, in the absence of targets in the second region of interest for a predetermined time, the detection in the second region of interest is interrupted, and the detection in the first region of interest is restarted.