The Actuation Layer defines all AOFS-compliant devices that perform actions on the farm. This includes irrigation pumps, valves, gates, and optionally generator start/stop controls.

All actuators must comply with AOFS safety, logging, and operational rules, even if the system operates offline.

• Pumps
  • Controls water delivery from sources to storage tanks or irrigation manifolds.
  • Must support:
    • Start/stop commands from Field Controller.
    • Safety interlocks (tank FULL/LOW, low voltage, pressure limits).
    • Optional energy-aware operation: integrate with Power & Energy Sensors to adjust schedule or warn operators.

• Valves
• Operate irrigation zones, distribution manifolds, or auxiliary water lines.
• Must support:
  • Open/close commands from Field Controller.
  • Flow or pressure monitoring feedback from Water Monitoring Sensors.
  • Fail-safe closure in case of errors, power loss, or critical alarms.

• Optional Generator Start / Stop
• See Optional Generator Integration.
• Can be automatic (remote start) or manual (operator alert).
• Must respect safety interlocks and event prioritization.

• Local Authority:
  • All critical actuation commands are decided by the Field Controller.
  • No remote system may bypass fail-safes or directly actuate pumps/valves.

• Fail-Safe Operation:
  • Hardware and software protections prevent flooding, over-irrigation, pump damage, or valve misoperation.
  • Actuators must respond to Sensors such as LOW/FULL tank switches, flow/pressure limits, and emergency stop signals.

• Energy-Aware Operation (Optional):
  • Actuators may integrate with Energy-Aware Operation Module.
  • Event execution can be:
    • Delayed or skipped if insufficient energy is available.
    • Prioritized based on urgency or operator-defined importance.
  • System may alert operators if an actuator is consuming more power than expected, indicating possible maintenance needs (e.g., clogged pipe).

• Event-Based Operation:
  • Pumps and valves operate according to scheduled irrigation events defined in the Field Controller.
  • Can be triggered manually by operators or via automation rules.

• Integration with Sensors:
  • Actuators rely on Sensors & Environmental Monitoring for safe and efficient operation:
    • Soil moisture thresholds
    • Tank levels
    • Pressure and flow rates
    • Optional power measurements

• Manual Override:
  • Operators can manually actuate pumps or valves, respecting hardware safety interlocks.
  • Manual events are logged and visible to Farm/HQ controllers.

• All actuator events must be logged locally on the Field Controller:
  • Event type (pump start/stop, valve open/close, generator start/stop)
  • Timestamp
  • Operator ID (if manual)
  • Relevant sensor readings at the time of actuation (flow, pressure, battery, energy)

• Logs are synchronized with Farm and HQ Controllers when connectivity is available.
• Supports analytics, energy assessment, and audit for compliance purposes.

• AOFS modules may define additional actuator types:
  • Greenhouse vents, fans, heaters, nutrient dosing pumps
  • Livestock feeders, water dispensers
  • Poultry egg collection or environmental actuators

• Any custom actuator must:
  • Integrate with Field Controller fail-safes.
  • Support logging and optional energy-aware prioritization.
  • Follow AOFS modular interface rules.

• AOFS controllers may measure power consumption of pumps, valves, and other actuators while running.
• Controllers may estimate battery drain or energy availability for upcoming scheduled irrigation events.
• AOFS supports event prioritization:
  • Each scheduled irrigation or actuator event can be assigned an urgency or importance level by operators.
  • If insufficient energy is available:
    • Low-priority events can be delayed or skipped.
    • High-priority events are executed as soon as sufficient energy is available.
    • Optional alerts notify operators of skipped or delayed events.
• AOFS can provide proactive scheduling guidance (optional):
  • When the operator attempts to schedule an irrigation or actuator event, the system may simulate expected energy usage and availability.
  • The controller can then warn the operator: "Based on current energy estimates, you will most likely not have enough power for this event."
  • Operators may then adjust priority, timing, or load before committing the schedule.
• All energy measurements, prioritization decisions, and resulting operational logs may be recorded for later analysis:
  • Enables visualization of energy usage and event execution history.
  • Helps operators determine if additional batteries, solar panels, or load rescheduling are needed.
• Optional anomaly detection:
  • Alerts operators if an actuator consumes more power than expected (e.g., clogged pipe, stuck valve).

AOFS supports manual fallback operation for farms without fully automated actuators.

• Purpose:
  • Ensure irrigation and critical farm operations can continue when automatic valves or pumps are unavailable.
  • Maintain safety, compliance, and event logging even with manual operation.

• Operation:
  • Field Controller generates step-by-step instructions for operators:
    • Which pump to switch on/off.
    • Which valve to set to open/closed or partial position.
    • Timing recommendations based on irrigation schedule, soil moisture, tank levels, and weather conditions.
  • Operators acknowledge each action in the system.

• Energy-Aware Integration:
  • If Energy-Aware Operation is active:
    • The controller calculates available energy for the scheduled events.
    • Alerts operators if performing the manual steps would exceed available energy.
    • Supports prioritization: some irrigation zones may be skipped or deferred according to urgency levels.

• Logging & Documentation:
  • All manual actions must be logged:
    • Operator ID
    • Action taken (pump/valve)
    • Timestamp
    • Relevant sensor readings at the time (tank level, flow, battery voltage, etc.)
  • Logs are synchronized with Farm/HQ controllers whenever connectivity is available.

• Benefits:
  • Allows farms to comply with AOFS even with low-tech equipment.
  • Ensures operators follow optimized schedules.
  • Enables full auditing and analytics later when automation is introduced.

• Sensors & Environmental Monitoring
• Electrical & Power Control Interfaces
• Operational Logic & Decision Hierarchy
• Hydraulic & Water Systems
• Optional Generator Integration
• Optional Energy-Aware Operation