Far-Infrared Emitter with Microwave Physiological Signal Detection
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Solution Overview
Problem
Conventional far-infrared therapy devices lack biological signal detection ability, are energy inefficient, and can cause thermal skin injury due to uncontrolled operation, necessitating a highly sensitive, low-cost, portable emitter with a far-infrared module that can be turned off based on user physiological signals for energy saving.
Innovation Solution
A far-infrared emitter with a microwave detecting module using a self-injection-locked-state oscillating integrated antenna and demodulator to detect physiological signals, coupled with a far-infrared beam module controlled by a unit that activates and deactivates the emitter based on detected signals, optimizing energy use and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional far-infrared therapy devices operate continuously without biological signal detection, then the therapeutic effect is maintained, but energy waste increases and thermal skin injury risk occurs
Solution Approach 1:
The patent implements a feedback control system where the microwave detecting module continuously monitors physiological signals (heartbeat, respiration, vascular pulsation) and provides feedback to the control unit. The control unit adjusts the far-infrared beam module operation based on this feedback, activating the beam only when physiological signals are detected and deactivating it when signals are absent, thereby preventing energy waste and thermal injury while maintaining therapeutic effect when needed
Solution Approach 2:
The patent transitions from static continuous operation to dynamic conditional operation. The far-infrared beam module operates dynamically based on real-time physiological signal detection, adjusting its activation state according to the presence or absence of detected signals, which optimizes energy efficiency and safety without compromising therapeutic effectiveness
2Device complexity
If conventional far-infrared therapy devices lack biological signal detection ability, then the device structure is simple, but safety control and energy efficiency are compromised
Solution Approach 1:
The patent applies preliminary action by implementing continuous physiological signal detection through the microwave detecting module before activating the far-infrared beam. The system proactively identifies the presence of a user and verifies physiological signals before initiating therapeutic radiation, preventing thermal skin injury and ensuring safety without requiring complex additional safety mechanisms
3Power
If far-infrared ceramics or carbon fiber heating panels are used, then the therapeutic function is achieved, but energy efficiency deteriorates and temperature control becomes difficult
Solution Approach 1:
The patent implements periodic action by activating the far-infrared beam module only during periods when physiological signals are detected and deactivating it during periods when signals are absent. This intermittent operation pattern based on physiological signal presence significantly improves energy efficiency compared to continuous operation of conventional heating panels, while maintaining adequate therapeutic power delivery during active periods
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 solution enables efficient energy use by activating the far-infrared beam only when physiological signals are detected, enhancing safety and reducing energy waste, while allowing for continuous detection and recording of physiological signals like vascular pulsation, heartbeat, and respiration, making the device suitable for medical and home care applications.
Implementation Method 1
a self-injection-locked-state oscillating integrated antenna and a demodulator, for emitting an oscillating signal to a human body so as to receive a reflection signal reflected back from the human body
Implementation Method 2
a far-infrared beam module, for generating a far-infrared beam
Implementation Method 3
thermal radiation emitted by all objects under room temperature is an electromagnetic wave in this far infrared wavelength range
Data Source
AI summary
A far-infrared emitters with physiological signal detection and method of operating the same is disclosed. A far-infrared beam module is switched on and generates far-infrared beam irradiating to a human body when a control unit starting up a microwave detecting module detecting physiological signal of the human body. The control unit is switched off when the time that the far-infrared beam irradiating on the human body reach a presetting period of time, thereby achieving the purpose of energy conservation.