These notes were compiled as ARMAC was designed and developed and are prior to the previous descriptions which were derived in significant part based on them.
However, these do contain two things which might be of interest:
- They have been included as they contain much of the detail of products considered and adopted, and even where they can be sourced and their price at the time. Because this was an ongoing process over some 18 months the notes may at times be out of date - in that the approach described was superceeded. If in doubt turn to the Technical Notes section of this site.
- They show, to a degree some of the reasons why some ideas were eventually supplanted by better ones. Some of the curious features that remain (for example a 13 core cable between house and pump shed) are legacies of earlier thinking which were replaced by better ideas (in this case placing an Arduino in the shed and then communicating over two wires between house and shed using RS485 digital protocols).
Development Notes Structure
Reflecting the order in which they system was developed, these notes fall into three parts:
Part A - System Overview and Design
- Preface and Disclaimer
- System Description
- Development Stages
- Fire Threat and Defence Decisions
- Sprinkler Layout and System Overview
- Plumbing and Pipe System
- Pump System Layout
- Water System Components
Part B - Physical Infrastructure
- Pump Shed Construction
- Tank Installation
- Pipe Supports and Feeder Lines
- Pump Specifications and Performance
- Shed Protection and Ventilation
- Flow and Pressure Requirements
- Operating Modes
- Intermittent Spray System
- Anti-Syphon Control
Part C - Electronics and Control Systems
- Electronic Sub-Systems
- Relay Module (AR2)
- Autonomous Module (AR3)
- Remote Control Module (AR1)
- Inter-Module Communication (RS485)
- Sensors and Monitoring
- Motorised Valves
- Automatic Decision Logic
- Sensor Failure Fallback
- Voltage Protection
- Programming and Testing
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