Blog

Chronological updates, logs, and activity regarding the ThermBand project.

Prototype Enclosure Development

May 30, 2026

Over the past four weeks, the enclosure for our proof-of-concept model has undergone an iterative design and development process. The baseline architecture consists of a rectangular geometry featuring four …

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Kalman Filter Refinement

May 22, 2026

Over the past week, we refined our Kalman Filter implementation following the biophysical model proposed in “Estimation of Core Body Temperature from Skin Temperature, Heat Flux, and Heart Rate Using a …

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Kalman Filter Implementation for Core Temperature Estimation

May 18, 2026

A Kalman Filter code was developed and implemented following the biophysical model proposed in the scientific paper “Estimation of core body temperature from skin temperature, heat flux, and heart rate …

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Webapp and Backend Structure

May 8, 2026

Over the past week, we established the backend structure and the webapp’s management interface. The system employs a SQLite database on the IST Sigma server to store biometric, environmental, and accelerometry …

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First Prototype Construction

April 28, 2026

During the past week, we began building the prototype using the materials currently available. After soldering the pin headers onto both the ESP32-C6 and the ADXL345 sensor, we completed the necessary …

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Mid-Program Pitch & Status Update

April 8, 2026

Status of Solution Development Our technical solution has evolved significantly. We have transitioned to the XIAO ESP32-C6 microcontroller for its superior power management and compact size. The system now …

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Meeting with Faculdade de Motricidade Humana

March 26, 2026

On March 26th, we met with Faculdade de Motricidade Humana to gather key insights for our project. During this meeting, the utility of the Physiological Strain Index was confirmed as a valuable tool for …

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Component Selection: ElectroCap in Detail

March 23, 2026

Our team has finalized the hardware selection that will power the ElectroCap prototype. The focus was to ensure maximum energy efficiency and biometric accuracy. Our Final Configuration Microcontroller: XIAO …

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Meeting with Infraestruturas de Portugal

March 23, 2026

Our meeting on 23 March with the Innovation and Human Capital teams at Infraestruturas de Portugal confirmed a critical gap in safety management: the absence of a real-time thermal stress monitoring system for …

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Hardware and Engineering Requirements

March 16, 2026

During the mid-program phase, our team refined the ElectroCap prototype requirements and architecture to ensure maximum clinical accuracy and energy efficiency. This post now contains the full technical …

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Meeting with Mota-Engil

March 13, 2026

On 13 March 2026, we held a meeting with Mota-Engil to examine the issue of thermal stress and physically demanding working conditions. During this meeting, the existence of the problem and the need for an …

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Meeting with Proteção Civil

March 13, 2026

In order to evaluate the existence of the problem our solution is trying to solve, we had a meeting with Proteção Civil. With this meeting we were able to confirm that in situations like fire fighting, there …

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Kickoff

March 2, 2026

Our project officially kicked off! The ThermBand team met to align on the project scope, divide responsibilities and set up our development workflow. We defined the core problem we are solving — the lack of …

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