Temperature Detection Device Using Simultaneous Radio Wave Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing temperature detection methods require significant time for measurement due to sequential transmission and reception processes, and the need to vary high-frequency power frequencies, making it difficult to measure temperatures with intended timing, especially in moving objects.
Innovation Solution
A temperature detection device that simultaneously transmits and receives radio waves using a resonance circuit with temperature-dependent characteristics, allowing for parallel processing of amplitude, phase, or quadrature phase amplitude calculations to determine if the object's temperature is normal or abnormal, thereby reducing detection time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential transmission and reception processes are used for temperature detection, then measurement accuracy can be maintained, but detection time becomes excessively long
Solution Approach 1:
The patent implements simultaneous transmission and reception operations through a full-duplex communication system. The base station transmits detection signals while receiving response signals from the sensor unit at the same time, eliminating the sequential waiting period. This continuous parallel operation maintains measurement accuracy while dramatically reducing detection time, directly resolving the technical contradiction between precision and speed.
Solution Approach 2:
The patent introduces a frequency division mechanism where transmission and reception occur on different frequency channels. The base station transmits on one frequency while receiving responses on another frequency, allowing simultaneous operations in the frequency domain. This dimensional separation enables parallel processing that maintains accuracy while eliminating time delays.
2Adaptability or versatility
If high-frequency power frequency is varied for temperature measurement, then measurement capability is improved, but operation time and data processing time increase
Solution Approach 1:
The patent uses a resonance circuit with temperature-dependent resonance frequency characteristics. Instead of sweeping through multiple frequencies, the system excites the circuit at its natural resonance frequency, which automatically shifts with temperature changes. This parameter-based detection method maintains measurement capability while eliminating the time-consuming frequency sweeping process, directly improving operation speed.
Solution Approach 2:
The patent employs resonance vibration of the detection circuit at its natural frequency. By exciting the circuit at its resonant frequency and measuring the resonance characteristics, the system obtains temperature information without frequency variation. This vibration-based approach maintains measurement accuracy while dramatically reducing operation time compared to frequency sweeping methods.
3Device complexity
If transmission and reception are performed alternately via switching element, then hardware configuration is simplified, but total time for transmission and reception is elongated
Solution Approach 1:
The patent employs a single antenna that simultaneously performs both transmission and reception functions. The antenna is designed to operate in full-duplex mode, transmitting detection signals and receiving response signals at the same time through frequency separation. This multi-functional design eliminates the need for switching elements while reducing detection time, resolving both device complexity and time loss.
Solution Approach 2:
The patent introduces frequency as an intermediary to separate transmission and reception operations. By using different frequency channels for transmitting and receiving, the system allows simultaneous operations without interference. This frequency-mediated approach enables the single antenna to perform both functions concurrently, eliminating switching delays while maintaining hardware simplicity.
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 significantly reduces the time required for temperature detection and enables timely comparison of the object's temperature to a predetermined value, even in rapidly changing environments, by simplifying the configuration and eliminating the need for frequency sweeping.
Implementation Method 1
a resonance circuit, which has a resonance characteristic that varies depending on the temperature of the object to be measured, and is configured to be excited by the transmission radio wave from the detection processing unit to generate the response radio wave responding to the transmission radio wave
Data Source
AI summary
A temperature detection device includes: a detection processing unit configured to transmit a transmission radio wave, simultaneously receive a response radio wave corresponding to the transmission radio wave, and detect whether a temperature of an object to be measured is normal or abnormal based on the response radio wave; and a temperature sensing unit configured to receive the transmission radio wave and transmit the response radio wave responding to the transmission radio wave. The detection processing unit calculates, from the response radio wave received via a second antenna, an amplitude, a phase, or a quadrature phase amplitude of the response radio wave and compares the temperature of the object to be measured to a temperature determined in advance based on a result of the calculation.