Design Proposal and Realization of an Academic-Nanosat PEDAGO-SAT Platform for Aerospace Training

Through this project, we try to promote the local aerospace knowledge by proposing a new kind of cooperation between the algerian universities and the ALgerian Space Agency (ASAL). The adopted method consists in developing an engineering training platform of a Nano-satellite (Open-source) and preparing functional and practical test courses to allow to the students and trainees the access to various knowledge related to the development and integration of satellites. The development plan granted to this platform (PEDAGO-SAT) is 36 months. At first milestone, a preliminary design realization of prototype are done, covering the certain equipment and sub-systems. The mechanical structure is alloy cube that could be opened into a petal, which will house a standard 1U stack cards of the avionics part. The OBC design is done around the ATmega-2560 microcontroller to ensure a less development complexity and follow trends in the Algerian the academic research community. The other equipment will be a COTS acquisition as (the magnetometer 3axes, gyroscope 3axes and the geolocation system GPS). To encourage the reproduction of this PEDAGO-SAT, the materials and components chosen for realization was accessible on the local market and easy to machine and to commission for students

Motor speed control using a fault tolerance implementation on SRAM-based FPGA

DC motor speed control is a critical task in many applications, such as industrial automation, aerospace and robotics. To ensure reliable and robust performance, a fault tolerance implementation is necessary. In this paper, we present a DC motor speed control system using an SRAM-based Field-Programmable Gate Array (FPGA) with a fault tolerance implementation. The control system utilizes a Pulse Width Modulation (PWM) and Proportional Integral Derivative (PID) to regulate the voltage applied to the motor. To ensure the reliability of the system, a MicroBlaze Triple Modular Redundancy is implemented, in which multiple controllers control the motor in parallel and their outputs are compared. The results show that the implementation significantly improves the reliability and robustness of the DC motor speed control system