Airlock Control System
Automated Airlock Sequencing and Safety Interlock
The airlock control system is an automated sequencing and safety interlock assembly comprising radiation-hardened programmable logic controllers, pressure sensors, position limit switches, and safety-rated relay logic. It manages cycling sequences by preventing simultaneous dual-door opening, verifying pressure equalization, and aborting cycles if seal checks fail. Lunar operations require autonomous cycling for unsupervised robotic transit, alongside integrated dust sensors that trigger cleaning cycles prior to door opening. To ensure containment during power loss, the system defaults to a locked-closed fail-safe state while supporting emergency overrides with safety warnings.
Control system automating airlock cycling sequence with safety interlocks
Purpose
Control system automating airlock cycling sequence with safety interlocks
Context
Child of L2-STR-LOCK
Principles
- ▸Sequenced control prevents simultaneous opening of both airlock doors
- ▸Pressure equalization verification required before door open is permitted
- ▸Safety interlocks prevent door opening if seal check fails
- ▸Override capability for emergency scenarios with appropriate safety warnings
Typical implementations
- ▸ISS airlock control panel and automation
- ▸Submarine escape trunk interlock systems
- ▸Industrial vacuum chamber control systems
Lunar considerations
- ▸Fully autonomous airlock cycling for robotic transit without human supervision
- ▸Control system must be fail-safe (default to locked closed on power loss)
- ▸Dust sensor integration triggers cleaning cycle before allowing door opening
Specifications
Functional
| primary function | Control system automating airlock cycling sequence with safety interlocks |
Physical
| materials | Rad-hard PLC, Pressure sensors, Position limit switches, Safety-rated relay logic |
Interfaces
Provides
- Automated airlock cycling control
Requires
- Airlock commands from autonomous operations
Cite this entry
Lunar Ark Codex. "Airlock Control System" (L3-STR-LOCK-CTRL). Retrieved 10 September 2026, from https://lunarark.com/entry/L3-STR-LOCK-CTRL
Licensed CC-BY-SA 4.0. You may reuse and adapt this entry with attribution, under the same licence.