Target Object Detection With Sequential Wave-Array Switching
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Solution Overview
Problem
Conventional target object detecting devices with wave transmitting/receiving arrays have complex configurations due to numerous elements, channels, and high costs, making it difficult to simplify the setup.
Innovation Solution
A target object detecting device and method utilizing a first and second transmission signal generator, along with signal switches and a controller, to sweep wave transmitting elements sequentially, overlapping sweeps to reduce complexity and enhance detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a wave transmitting/receiving array with many elements is used for target object detection, then detection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent divides the wave transmitting array into multiple groups, with each group containing a subset of the total elements. By selectively activating different groups and using signal switching mechanisms, the system achieves comprehensive coverage and high detection accuracy without requiring all elements to be simultaneously active, thereby reducing overall system complexity
Solution Approach 2:
The patent employs dynamic signal switching between different wave transmitting elements and groups based on detection requirements. The system can dynamically reconfigure which elements are active and how signals are routed, allowing flexible adaptation to different detection scenarios while maintaining simplicity in any given configuration state
2Adaptability or versatility
If multiple transmitting channels and receiving channels are used, then detection capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent designs the wave transmitting elements to serve multiple functions: they can act as both transmitting elements and receiving elements, and different groups of elements can be used for different detection purposes. This multi-functionality reduces the need for separate dedicated transmitting and receiving channels, simplifying the overall channel configuration while maintaining versatile detection capability
Solution Approach 2:
The patent combines transmitting and receiving functions into a unified array system where elements can operate in different modes. By merging the functionality of separate transmitting and receiving channels into a single flexible architecture with signal switching, the system achieves comprehensive detection capability with reduced channel complexity
3Measurement precision
If wave transmitting elements are swept sequentially with transmission signals, then detection accuracy is improved, but transmitting energy is reduced
Solution Approach 1:
The patent implements overlapping sweeps where multiple transmission signals are sent with overlapping time windows. While one sweep is正在进行, another sweep is already starting, ensuring continuous transmission of detection signals. This continuity maintains high detection accuracy while improving energy utilization by eliminating gaps between sweeps
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
The simplified configuration allows for accurate target object detection with increased transmitting energy, extended detectable distance, and improved distance resolution, while suppressing side lobes and ripples in the reception signal.
Implementation Method 1
a plurality of first wave transmitting elements 10a that convert a first transmission signal S11 and a second transmission signal S12 into transmission waves
Implementation Method 2
transmits a transmission wave and detects a target object based on a reflection wave thereof
Data Source
AI summary
A target object detecting device including first and second transmission signal generators, a wave transmitting array, first and second switches, and a controller is disclosed. The first and second transmission signal generators generate first and second transmission signals, respectively. The wave transmitting array has a plurality of wave transmitting elements which convert the first and second transmission signals into transmission waves. The first switch supplies the first transmission signal to one of the wave transmitting elements. The second switch supplies the second transmission signal to one of the wave transmitting elements. The controller performs a control in which the first switch switches the wave transmitting element to which the first transmission signal is supplied, from an element n to an element n+1, and the second switch switches the wave transmitting element to which the second transmission signal is supplied, from an element m to an element m+1.