Mission Modes

Mission Mode Class

Class Contents

virtual void transition_to()

• Sets all relevant settings in the SFR. Optionally sets the start time of the mode

virtual void dispatch()

• Checks exit conditions

float start_time

void set_start_time(float new_start_time)

• Stores when the mission mode started

virtual int get_id()

• Returns numerical representation of mode for comparisons

virtual mode_type get_type()

• Returns either NORMAL, TRANSMIT, LP, or OTHER

Mission Mode State Machine

Description of settings

Initialization

• Boot
  • Two hour period where RockBLOCK is in sleep mode.
  • The RockBLOCK may not be on during this time due to CubeSat proximity to the ISS.
• Alive Signal
  • RockBLOCK attempts to downlink one normal report with a downlink period of X minutes. If RockBLOCK hard faults or X minutes have passed.
  • This mode allows us to communicate with the CubeSat at one time before the ACS is activated. The IMU is off.
• Low Power Alive Signal
  • RockBLOCK attempts to downlink one normal report with a downlink period of X minutes. If RockBLOCK hard faults or X minutes have passed.
  • This mode allows us to communicate with the CubeSat at one time before the ACS is activated.
  • The IMU is off.

Stabilization

• Detumble & Spin
  • ACS is in Detumble & Spin mode.
  • The IMU is on.
• Low Power Detumble & Spin

Standby

• Normal
• Transmit
• Low Power

Deployment

• Deployment Normal
• Deployment Transmit
• Deployment Low Power

Armed

• Armed Normal
• Armed Transmit
• Armed Low Power

In Sun

• In Sun Normal
• In Sun Transmit
• In Sun Low Power
• In Sun Voltage Sensor Fault

Firing

• Turn on Camera
• Mandatory Burns
• Regular Burns
• Take Photo

Diagram with entrance and exit conditions

Outstanding Questions

• Should alive signal allow for multiple RockBLOCK hard faults?
• Should IMU be on during boot?