Object Detection Frequency Assignment for Concurrent Source Identification
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Solution Overview
Problem
Existing object detection systems face challenges in accurately determining the source of a transmission wave when multiple object detection apparatuses transmit concurrently, leading to inefficiencies in identifying objects due to the need for long identification codes that prolong transmission time.
Innovation Solution
The system employs a method where each object detection apparatus transmits a unique frequency within a predetermined frequency band, allowing for simultaneous identification without reliance on lengthy identification codes, by determining the correspondence between transmission and reception wave frequencies through frequency analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple object detection apparatuses transmit concurrent identification codes to identify transmission wave sources, then the source identification accuracy is improved, but the detection time increases due to long identification codes
Solution Approach 1:
The patent changes the identification parameter from temporal (long identification codes transmitted over time) to spectral (frequency assignments). Each apparatus is assigned a unique frequency within a predetermined band, allowing simultaneous transmission without interference. The determination portion identifies the transmission source by detecting which frequency is present in the received signal, eliminating the need for long temporal identification sequences and reducing detection time while maintaining accurate source identification.
2Productivity
If multiple object detection apparatuses transmit concurrently to detect objects in detail, then the detection capability is improved, but the complexity of determining transmission wave sources increases
Solution Approach 1:
The patent simplifies the determination complexity by changing from temporal code analysis to frequency detection. The determination portion only needs to detect which assigned frequency is present in the received signal to identify the transmission source, which is a simpler operation than analyzing long identification codes. This allows multiple apparatuses to transmit concurrently without increasing system complexity.
3Measurement precision
If long identification codes are used to identify transmission wave sources, then the identification accuracy is improved, but the transmission time is prolonged
Solution Approach 1:
The patent transforms the identification mechanism from temporal extension (long codes over time) to spectral differentiation (unique frequencies). Each apparatus transmits a brief signal at its assigned frequency, and the determination portion identifies the source by frequency detection rather than temporal code analysis. This drastically reduces transmission time while maintaining accurate identification through frequency discrimination.
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 rapid and accurate detection of objects by simplifying the identification of transmission wave sources, reducing detection time, and maintaining accuracy even with concurrent transmissions.
Implementation Method 1
a reception wave that is based on the transmission wave returned due to reflection at an object
Implementation Method 2
determine a correspondence relationship between one or more second frequency of one or more second wave motion included in the reception wave and the plurality of first frequencies, on the basis of a result of a frequency analysis of the reception wave
Data Source
AI summary
An object detection system includes plural first object detection apparatuses each including a transmitting portion configured to transmit a first wave motion of a first frequency included in plural first frequencies, the transmitting portion transmitting the first wave motion of the first frequency which is different from the other first object detection apparatus concurrently with the other first object detection apparatus. The system includes a receiving portion configured to receive a reception wave, a determination portion configured to determine a correspondence relationship between one or more second frequency of one or more second wave motion included in the reception wave and the plural first frequencies, and a detection portion configured to detect information related to the object.