PAT Application

Overview

The PAT Application is a Payload Controller application that intakes data from other applications and orchestrates the PAT sequence.

Data Input

Receive data from the Quadrant-Photodiode Manager on positioning
Receive relevant commands from Radio Manager
Receive position data from GPS Application
Accept telemetry from ground station

Data Output

Command the Laser Manager, FPGA Manager, and FSM Manager
Send positioning commands to the ADCS Manager
Log to Data-Collection Application

Data Processing

Maintain the PAT state throughout a sequence
Ingest all positioning data and output a desired position and orientation
Based on PAT state, send different data to the Laser and FPGA manager
Communicate with the payload manager

PAT Sequence Diagram

Figure 1: PAT Sequence Diagram

Integration Points with PULSE-A Applications

Quadrant-Photodiode Manager Application: Receives positioning data
Radio Manager Application: Receives commands
GPS Manager Application: Receives position data
Laser Manager Application: Sends laser commands
FPGA Manager Application: Sends FPGA commands
FSM Manager Application: Sends positioning commands
ADCS Manager Application: Sends positioning commands
Data-Collection Application: Logs data

Integration Points with NASA Provided Applications

SBN Application: Connects to Software Bus Network

Integration Points with Hardware

Ground Station: Receives telemetry

Integration Points with Other Software

Software Bus: Publishes PAT status