Browsing by Author "Nonato, Nicolle"
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- Data acquisition system for fine surface process monitoringPublication . Nonato, Nicolle; Lima, José; Rodrigues, Nelson; Bertotti, Fábio LuizThin surface manufacturing processes are known worldwide and used in a variety of applications. Among the various manufacturing processes, metal stamping and plastic injection are indispensable techniques for the success of companies in this field, where innovation is essential to remain competitive. In this sense, several thin surface optimization procedures are explored in the On-Surf project. This work focuses on a sensory data acquisition system on these surfaces, meeting the requirements of modularity and scalability, meaning that they can be easily expanded or contracted, depending on the number of sensors required. The designed system consists of several modules, one dedicated to signal conditioning to temperature and pressure sensors, the other has as purpose acquiring data and sending this data to a hub via Ethernet UDP communication, using the Olimex ESP32-PoE-ISO as an embedded system. Finally, Raspberry Pi was chosen as a data hub module to aggregate the information received by ESP32 modules. Forvalidation, several tests were performed to verify the structure robustness. As result, each conditioning module can support up to eight sensors simultaneously, the signal of the sensors was acquired by the embedded system at 1 kHz sampling rate, and UDP transmission reached a communication throughput of 2000 packets per second.