# Modules

:::warning
Is the alarm that is triggered the same alarm for each system?
Function takes param and selects which alarm is raised?
Same for signals to ACMS? - pass param to function and signal type is sent accordingly
:::

:::warning
What controls the vents? ACMS or each individual unit?
:::

:::warning
What happens when astronaught is in the pod needing to be purged?
Manual overide?
:::

### Example from Tony

## Biohazard Management System
- Biohazard sensors collect data logs
- analysed - appropriate return code
- Understands code from sensor analysis - reacts accordingly
- send lockdown signal to ACMS
- lockdown gates
- triggers alarm
- checking if astronauts are in pod
- air vent purge - code when finished
- check levels again
- ALL CLEAR signal if okay
- gates back to normal

Biohazard sensors detect biohazard levels above set limit -> Signal sent to ACMS and alarm is sounded -> ACMS receives lockdown signal -> All gates in affected pod are locked

Affected pod/airlock is purged using external air vents -> biohazard levels return to normal -> "ALL CLEAR" signal sent to ACMS -> gates resume normal operation

## Radiation monitoring system
- sensors read and monitor radiation levels
- if radiation levels exceed the normal value limit, the alarm is raised and signal sent to ACMS
- 20 second delay signal sent to ACMS before inititating lockdown
- When radiation levels are returned to normal, alarms are deactivated and "ALL CLEAR" signal is sent to the ACMS.

- Function 1: sensor reads radiation levels from external source and stores value in local variable. If local variable value > normal value, call alarm function???

## Fire Detection and Suppression System
- Sensors detect presence of fire
- If a fire is detected, signal sent to ACMS for lockdown after 20s delay
- Sends signal to use fire suppressant
- After the fire signal goes, purges suppressant
- Refills pod with oxygen
- Receives signal from AQMS when air is of good enough standard
- Sends all clear signal to ACMS

1 - sensor:
- If fire
- Send true signal to FDSS
- When fire is no longer present
- Send false signal to FDSS

2 - FDSS:
- If true signal received from sensor
- Send signal to ACMS asking for 20s delay before lockdown
- Wait 20s
- Add suppressant
- If false signal received after a true signal from sensor
- Purge suppressant
- Add oxygen
- When clean air signal received from AQMS
- Send all clear to ACMS

## Airlock Control Management System (ACMS)

## Air Quality Management System (AQMS)

- Sensors record concentrations of gases in the atmosphere
- Compares this to safe levels
- If outside safe limits, sends signal to ACMS after delay
- signal should contain which gas(es) fall outside of safe limits, as well as which pod(s) is affected
- Once ACMS receives signal, gates to the pod should lock
- Once gas levels return to normal, signal should be sent to ACMS to unlock the gates.
- Signal should contain which pod to unlock

<br/>

+ MonitorAirQuality
+ DoesExceedLimits
+ Yes:
+ Delay 20
+ SignalACMSLockdown(PodID, Gas)
+ While TRUE
+ SafeLevels
+ Yes:
+ SignalACMSUnlock(PodID)
+ BREAK
+