Recuperación funcional e integración de una plantilla instrumentada para el monitoreo y análisis de presión plantar mediante arquitectura embebida y plataforma web

Abstract

This report describes how an instrumented insole for measuring plantar pressure was recovered and integrated, along with the embedded architecture and web platform that work with it. The starting point was the active insole prototype that Barragán Moreno built in the DIGITI group [1], originally designed to monitor foot posture during the stance phase of walking and alert the user when it was incorrect. That device was refurbished and became part of a complete system that acquires, calibrates, stores, exports, and publishes traceable measurements in physical units. Two university programs participated in the project: Control and Automation Engineering and Telecommunications Engineering. The reason is practical. A connected measuring instrument has two problems that are difficult to solve separately. One is how faithfully the transducer converts the physical quantity into an electrical signal; the other is whether that signal can be transmitted, stored, and displayed again without losing its meaning. Control and Automation focused on what happens before the data leaves the device, and Telecommunications on what happens afterward. The layered architecture follows this same division. Each layer addresses a different aspect of the measurement, so one can be modified without affecting the others—a design choice that leads to several decisions explained later. The report follows this order: background, theoretical framework, project development in four phases, results, conclusions, and recommendations. The background section situates the work within the existing literature and previous work conducted at the University, and concludes with the research question. Next, the theoretical framework sets forth the concepts and physics underlying the measurement, which lays the groundwork for the project’s development. The appendices include supporting documentation, source code, datasets, detailed mathematical derivations, a glossary, a proposal for the next version of the prototype, and a video of the system in operation. The text uses terms from instrumentation, metrology, and communications whose meanings vary depending on the context. For this reason, Appendix A includes a glossary with the definition of each term within its respective field, and each definition is supported by recognized sources. Only in the theoretical framework are original definitions proposed—for concepts such as Hertzian contact and plantar arch index—always accompanied by their bibliographic references