An Investigation of RTOS-Based Sensor Data Management Performance for Tel-USat On Board Data Handling (OBDH) Subsystem

Nanosatellite is one of satellite technology that can now be developed by various types of circles, one of which is in university scaled. Currently Telkom University is developing nanosatellite for research purpose. Nanosatellite system can be run with the support of several subsystems. One of the subsystems is On Board Data Handling (OBDH), as the main control. The presence OBDH subsystem is for processing system data, such as get the housekeeping data parameters to monitoring and determine the nanosatellite health system. The parameters consist of temperature, gyroscope orientation, and magnetic sensing. In Tel-USat, the On Board Data Handling by using 32-bit ARM Cortex M3 as main controller with several sensors to collect the parameters data. To support the running of reliable system process, Real Time Operating System (RTOS) can be applied to manage a lot of tasks with the concept of multitasking and fast processing time.