Dual-Probe Thermometer Cover Detection for Stable Mode Switching
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Solution Overview
Problem
The frequent disassembly of the ear temperature probe in dual-probe body temperature measuring apparatuses affects the stability of the electrical connection, leading to low temperature measurement accuracy.
Innovation Solution
A body temperature measuring apparatus with a main unit and a main cover that can be in a preset or non-preset state, featuring a detecting assembly to automatically switch between forehead and ear temperature measurement modes, ensuring the ear and forehead temperature probes operate simultaneously or independently, with magnetic and pressure sensors for detection, and a control assembly to manage probe activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ear temperature probe is frequently installed and removed for different measurement modes, then the device can switch between forehead and ear temperature measurement, but the electrical connection stability deteriorates
Solution Approach 1:
The device is divided into a main body and a detachable cover assembly. The cover assembly contains the ear temperature probe and can be separately attached or removed from the main body, which houses the forehead temperature probe. This segmentation allows independent operation of each probe without frequent disassembly of the entire device, maintaining electrical connection stability while enabling mode switching.
Solution Approach 2:
The device transitions from a static structure to a dynamic one where the cover assembly can be selectively attached or removed. This dynamic configuration allows the device to adapt between different measurement modes (forehead only, ear only, or both) while maintaining stable electrical connections through the main body's fixed probe mounting.
2Device complexity
If only the ear temperature probe is used for forehead temperature measurement, then the device structure is simplified, but the temperature measurement accuracy deteriorates
Solution Approach 1:
The device merges both the forehead temperature probe and ear temperature probe into a single integrated system. When the cover assembly is attached, both probes operate simultaneously to measure temperature, with the control unit processing data from both sources. This combination improves measurement accuracy by providing multiple measurement points while maintaining a unified device structure.
Solution Approach 2:
The main body serves multiple functions by housing both temperature probes and enabling them to operate independently or together. The cover assembly's attachment or removal triggers different operational modes, allowing the same hardware to perform various measurement tasks with optimized accuracy for each mode.
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
Ensures stable electrical connections and improved temperature measurement accuracy by allowing simultaneous operation of dual probes, reducing errors from local temperature changes, and enhancing the reliability of temperature readings.
Implementation Method 1
The Hall sensing element is arranged at the coupling position of the main unit that couples with the main cover, the magnetic member is arranged at the coupling position of the main cover that couples with the main unit
Implementation Method 2
the detecting assembly includes a pressure sensor triggered by the main cover in the preset state, the pressure sensor is arranged at the coupling position of the main unit with the main cover
Data Source
AI summary
A body temperature measuring apparatus includes a main unit, a main cover, a detecting assembly, and a control assembly. The main unit includes a forehead temperature probe and an ear temperature probe. The ear temperature probe has an extending portion for inserting into an ear canal. The main cover has a preset state where it covers the two probs, and a non-preset state where it is detached from the main unit. The detecting assembly is arranged on the main unit and/or the main cover, and is used for detecting whether the main cover is in the preset state. The control assembly is electrically connected to the detecting assembly and the two probs. The control assembly obtains whether the main cover is in the preset state through the detecting assembly, to select to turn on both the probs or only turn on the ear temperature probe.