This page outlines the preliminary structure for the ground station system. As more progress is made, these diagrams will continue to be updated. The edit link to each of these diagrams can be found here.
This shows the main interfaces and systems involved in the ground station.
Remote Control Rotator Box Controller Circuit: This is an Arduino/Raspberry Pi based controller that will actuate the rotator box at the required times and angles.
Rotator Box and Antenna: The physical ground station set up located on the roof of Bahen centre. This is what interfaces with ARCSat directly through RF communications.
SatNOGS Interface: This is the software interface that collects raw data from ARCSat's communications
ARCSat RX Flowgraph: Demodulates, filters, gain corrects, and unpackages the data for interpretation and logging. Take SatNOGS data as input.
Automated Pass and Command Scheduling Scripts: These scripts will need to contain information about the schedule for ARCSat operations, when passes are expected, and where ARCSat is expected to be when these commands are sent. It is expected that automated commands would be able to bypass the password inputs directly.
ARCSat TX Flowgraph: Modulates data for transmission to ARCSat.
ARCSat Data Log: Text file containing information received from ARCSat. A new text file will be created every month.
ARCSat Command Log: Text file containing all commands sent up to ARCSat. A new text file will be created every month.
UTAT Ground Station Website: Backup option for sending commands if issues arise with the automated control. User interface with buttons for selecting commands and space to input passwords and arguments.
Command Line Interface Script: Website accesses this tx_for_bidirectional.py file, which puts the command into cmd.bin, which is the input to the ARCSat TX Flowgraph.
This diagram shows the main functions that need to be performed at each step in the TX chain. Level 0 are the high level tasks, which break down to the subtasks shown in Level 1.
This diagram shows the main functions that need to be performed at each step in the RX chain. Level 0 are the high level tasks, which break down to the subtasks shown in Level 1.