Radar Signal Simulator Using Respiratory Delay for Biosignal Verification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicular radar sensors face challenges in verifying their performance for sensing small and slow-moving living creatures, necessitating a method to simulate biosignals for verification during mass production.
Innovation Solution
A signal simulator that converts and delays radar signals based on a respiratory cycle to simulate biosignals, using a receiver, converter, and transmitter to mimic the reflection characteristics of living creatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If actual living creatures are used for radar sensor performance verification, then measurement precision is improved, but device complexity and ethical concerns increase
Solution Approach 1:
The patent creates a signal simulator that generates artificial biosignals copying the characteristics of living creatures' radar reflections. The simulator produces respiratory cycle-based delay patterns (3-5 seconds) and movement range variations that mimic actual biological signals, eliminating the need for real subjects while maintaining measurement precision for radar sensor verification
Solution Approach 2:
The patent transforms the verification approach by changing parameters from physical biological samples to synthesized signal parameters. The simulator controls delay time parameters (respiratory cycle: 3-5 seconds), movement range parameters (chest/abdomen expansion-contraction), and signal intensity parameters to replicate biosignal characteristics without requiring actual living creatures
2Productivity
If mass production verification is implemented, then productivity is improved, but the need for complex simulation setups increases device complexity
Solution Approach 1:
The signal simulator provides a standardized, repeatable copying mechanism for biosignals that can be used across multiple verification stations. The device generates consistent respiratory cycle patterns and movement simulations that can be rapidly deployed for mass production testing, improving productivity without requiring complex custom setups for each verification station
Solution Approach 2:
The patent designs a universal signal simulator that can verify multiple types of radar sensor configurations (different frequencies, wavelengths, and detection modes) using the same core device. The simulator's ability to adjust delay times and movement ranges makes it multi-functional, allowing one device to serve various verification needs in mass production
Data Source
AI summary
A signal simulator and a signal simulation method are provided. A radar signal (electromagnetic wave) is received. The received electromagnetic wave is converted and the converted electromagnetic wave is transmitted. The electromagnetic wave may be converted based on a respiratory cycle. A signal reflected by respiration of a living creature is simulated to easily verify the biosignal sensing performance of a radar device.