Object Detector Using Adaptive Sampling for Frequency Versatility
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Solution Overview
Problem
Existing object detector devices are limited in detecting objects with repetitive motion across a range of frequencies, requiring objects to operate at a specific frequency for detection, which can result in delays when changing frequencies.
Innovation Solution
An object detector apparatus that uses a receiver and analyzer to sample signals with multiple sets of parameters, allowing detection of objects moving at different frequencies by comparing sampled data sets with historical data, enabling detection of objects with repetitive motion at various frequencies without the need for prior knowledge of the pattern or storage of historical data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the detector device samples signals using a single set of sampling parameters tuned to a specific frequency, then detection precision at that frequency is improved, but adaptability to detect objects at different frequencies deteriorates
Solution Approach 1:
The system dynamically switches between multiple sets of sampling parameters based on the detected frequency characteristics of the object. The analyser can select different sampling rates and parameters adaptively, allowing the detector to maintain high precision across varying operational frequencies without requiring manual reconfiguration.
Solution Approach 2:
The invention employs multiple sets of sampling parameters with different characteristics (sampling rates, window functions, etc.) to detect objects at different frequencies. By changing the sampling parameters according to the object's operational frequency, the system achieves both high detection precision and broad frequency adaptability.
2Reliability
If the detector device is configured to detect objects at a predetermined frequency, then detection reliability at that frequency is improved, but loss of time during frequency changes increases
Solution Approach 1:
The system pre-configures multiple sets of sampling parameters corresponding to different operational frequencies before detection begins. When an object's frequency changes, the analyser can quickly switch to the pre-prepared appropriate parameter set, eliminating the need for time-consuming reconfiguration and maintaining continuous reliable detection.
Solution Approach 2:
The analyser dynamically adapts the sampling parameters in real-time based on frequency detection, allowing the system to maintain high detection reliability across frequency transitions without manual intervention or system reconfiguration delays.
3Adaptability or versatility
If the detector device uses multiple sets of sampling parameters to detect objects at different frequencies, then adaptability is improved, but device complexity increases
Solution Approach 1:
The analyser is designed as a universal processing unit that can handle multiple sets of sampling parameters through a single integrated architecture. This multi-functional design allows the system to detect objects at various frequencies using one device, reducing the need for multiple specialized detectors and thereby managing complexity while maintaining adaptability.
4Measurement precision
If the detector device requires historical data storage for pattern comparison, then measurement precision is improved, but loss of information is reduced only at the cost of increased device complexity
Solution Approach 1:
The system extracts only the essential pattern features from historical data that are necessary for detection, rather than storing and processing complete historical datasets. This selective extraction maintains detection precision while minimizing data storage requirements and reducing system complexity.
Data Source
AI summary
An object detector apparatus. The object detector apparatus comprises a receiver which is configured to receive a signal from an object having a repetitive motion, in which the signal repeats at a frequency that is dependent on the frequency of the repetitive motion of the object. The object detector apparatus further comprises an analyzer which is configured to sample a signal received by the receiver according to a first set of sampling parameters into a first sampled data set, and to produce an output based on a comparison of the first sampled data set with at least one previously sampled data set. The analyzer is also operable to sample a signal received by the receiver using a second set of sampling parameters which differs to the first set of sampling parameters into a second sampled data set, and to produce an output based on a comparison of the second sampled data set with at least one previously sampled data set.