Remote Health Monitoring Signal Testing for Channel Integrity
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Solution Overview
Problem
Remote health monitoring systems face uncertainties due to variations in hardware and software used for signal transmission, as well as external noise sources, which affect the integrity and quality of audio signals received by physicians.
Innovation Solution
A health monitoring device generates a test monitor signal to imitate the signal of interest, transmitting it over the signal path to verify its integrity, using a host device to determine and compensate for channel effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If audio signals are transmitted over communication channels using varying hardware and software, then telehealth services can be provided remotely to multiple patients and physicians, but signal integrity deteriorates due to filtering, noise, and channel variations
Solution Approach 1:
The system performs preliminary actions by transmitting test signals through the communication channel before actual medical audio signals. This allows the receiving device to pre-characterize the channel's filtering and noise properties, storing this information for later compensation when real diagnostic signals are transmitted, thus resolving the contradiction between service versatility and signal integrity.
Solution Approach 2:
The system implements feedback by having the receiving device analyze received test signals and communicate channel characteristics back to the transmitting device. This feedback loop enables both devices to adjust their signal processing parameters to compensate for channel effects, maintaining signal integrity across varying hardware and software configurations.
2Adaptability or versatility
If external noise sources are present proximate to the monitoring device, then the device can operate in various environments, but the received signal quality deteriorates
Solution Approach 1:
The system introduces test signals as intermediaries that carry information about the acoustic environment's noise characteristics. By analyzing how these test signals are affected by external noise sources, the system can develop compensation filters that protect the actual medical audio signals from noise interference while maintaining operational flexibility in various environments.
3Ease of operation
If channel effects are not compensated, then the system operation is simple, but diagnostic confidence decreases due to signal uncertainty
Solution Approach 1:
The system creates copies of test signals and transmits them through the communication channel to model the channel's effect. By comparing the original and received copies, the system automatically generates compensation parameters without requiring complex manual calibration, thus maintaining operational simplicity while improving diagnostic confidence through accurate signal correction.
Data Source
AI summary
A health monitoring device, comprising: processing circuitry configured to generate a test monitor signal, the test monitor signal configured to imitate a monitor signal of interest; transmission circuitry configured to transmit the test monitor signal over the signal path to a host device, the test monitor signal for determining at the host device an integrity of the signal path for transmission of the monitor signal of interest over the signal path.