Single Board Computer Based Data Acquisition System for Monitoring Parameters of Reusable Launch Vehicle Interface System 2024-26-0434

With the upcoming technology demonstration projects such as the Reusable Launch Vehicle, easily portable data acquisition systems for ground testing are the need of the hour. The existing data acquisition systems used in ISRO scenario tends to be bulky or to be of higher capability based on the number parameters to be acquired, which makes them underutilized. To tackle this problem, a novel approach to implement a data acquisition system on BeagleBone®️ Black, a Single Board Computer (SBC) was conceived. With this approach the number of components utilized would be reduced as we make use of ADCs present in the BeagleBone computer. Also, the size of the hardware setup is significantly reduced as the chosen SBC fits into the palm of our hands. To protect the data acquisition components from common mode voltages, an isolation amplifier is utilized. The acquired parameters are digitized and broadcasted. Any node of the network within the same subnet will be able to acquire the parameters for analysis or further use. The parameters are also displayed by a web application coded in node.js The developed Data Acquisition system is portable due to its small size and minimal use of components. It could be moved anywhere with ease, even to the runway, where the final phase of ground testing commences. Therefore, the developed data acquisition system meets the space contraint and parameter monitoring requirements.