Obstacle Detection Antenna Array with Dynamic Combination Selection
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Solution Overview
Problem
Existing obstacle detection systems face challenges in accurately detecting targets at varying distances and conditions, leading to unnecessary warnings or missed detections due to fixed antenna configurations and performance limitations.
Innovation Solution
An obstacle detection apparatus with a plurality of receiving antennas arranged in different combinations, allowing for adjustable intervals and angles to detect targets in both horizontal and vertical directions, enabling adaptive detection based on distance, speed, and environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed combination of receiving antennas is used, then the device structure is simple, but the detection accuracy and detectable azimuth change with target distance and environmental conditions, leading to inability to meet varying performance requirements
Solution Approach 1:
The patent applies dynamics by making the antenna combination selectable and changeable based on detection conditions. Instead of a fixed antenna configuration, the system dynamically selects appropriate antenna combinations from multiple pre-configured options according to target distance, required detection accuracy, and environmental conditions, allowing the detection system to adapt its configuration in real-time
Solution Approach 2:
The patent changes the parameter of antenna combination selection based on detection requirements. By varying which antennas are activated and how they are combined according to target distance and detection accuracy needs, the system optimizes detection performance for different scenarios without requiring a completely different hardware configuration
2Measurement precision
If receiving antennas are arranged with wider intervals, then detection accuracy of azimuth in vertical direction improves, but the angle range for target detection becomes narrower due to phase return
Solution Approach 1:
The patent segments the detection task by using different antenna combinations for different detection scenarios. Multiple antenna pairs are configured with different intervals and orientations, allowing the system to select the appropriate segment (antenna combination) based on whether priority is given to accuracy or coverage range for the current target
Solution Approach 2:
The patent creates a universal antenna system where the same physical antennas can serve multiple functions by being combined in different ways. The same set of receiving antennas can be paired to provide either wide coverage or high accuracy depending on which combination is selected, making the system multi-functional without requiring separate dedicated antenna sets
3Measurement precision
If the detection system is specialized for detecting specific targets like iron plates, then detection accuracy for those targets improves, but the wide range detection capability is reduced
Solution Approach 1:
The system dynamically adapts its detection characteristics by selecting different antenna combinations based on the type of target being detected. For flat targets like iron plates, specific antenna combinations optimized for those characteristics are selected, while other combinations provide broader detection coverage for varied target types, allowing the system to be specialized when needed and general when required
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
Enhances detection accuracy and range by selecting optimal antenna combinations according to target distance, speed, and environmental factors, reducing false alarms and improving collision avoidance.
Implementation Method 1
an obstacle detection apparatus comprising: a receiving antenna part that has a plurality of receiving antennas arranged in a horizontal direction with a part thereof being shifted in a vertical direction
Data Source
AI summary
Various targets are detected in a more accurate manner. Provision is made for a receiving antenna part that has a plurality of receiving antennas arranged in a horizontal direction with a part thereof being shifted in a vertical direction from the others, and has a plurality of combinations of the receiving antennas, of which each combination detects an azimuth in the horizontal direction and an azimuth in the vertical direction of a target; and detection means that detects the target a plurality of times while changing the combination of the receiving antennas. The detection accuracy of the target can be enhanced by making a comparison between at least two detection results obtained by the detection means.