The Raspberry Pi is a single board computer. Its purpose is to serve all of Umukuri's computational requirements. The Server it is mounted beside the Inverter in the Container.

Attached to the Raspberry Pi mainboard is a Dragino Lora/GPS HAT daughterboard. The Dragino HAT provides a LoRaWAN network capability to the Server for connecting to Internet of Things sensors and actuators, and to GPS for location and time synchronisation. Currently (i/2019) Umukuri utilises only the GPS functionality.

The Server has the following six physical interfaces:

• Electricity: A multibox connected directly to the Container Switchboard supplies power to the Server.
• Generic USB: A generic USB Type-A to USB Type-B cable connects the Server to the Inverter for data collection.
• Victron USB: A "V.E. Direct" USB cable connects the Server to the Battery Monitor for data collection.
• UTP (Ethernet): A 30-metre length of UTP runs from the Container to the Bach to connect the Server to the Router.
• GPS Antenna: A GPS antenna magnetically affixed to the outside of the Container connects to the Dragino daughterboard via reverse SMA.
• LoRaWAN antenna: A 915 MHz LoRaWAN antenna connects to the Dragino daughterboard via reverse SMA (currently unconnected and unused.)

For operating system the Server is running the December 2018 release of Inverter Control Centre (ICC) from ICC Software. ICC is merely the most recent distribution of OpenEnergyMonitor with ICC's proprietary ICC application preconfigured. OpenEnergyMonitor's distribution itself is merely a derivative of the Raspbian Linux distribution.

For applications the Server is running a variety of generic application software including a LAMP stack comprising a MySQL database and Lighttpd web server, and a graphical user interface on top of X11.

The proprietary ICC application requires a hardware-locked key to operate. The Machine ID is $6812D735 The key owned by Umukuri is m7C+OjcP1vxuiArTlX9VUEKaVPF

The key for the advanced power management add-on should be one of these: hvUGD9/HmQOo3CqVxZ9m7n+sRjE Tm2f/By0L4lxq8CuCWUv7hitmoO

DNS: umukuri wiki.umukuri intranet.umukuri monitor.umukuri
IP Address: 192.168.1.1
Shell & VNC: pi/raspberry
Web apps: icc/raspberry
(Usernames and passwords have been left as their defaults.)

Make: Raspberry Pi / Dragino LoRa/GPS HAT
Model: 2 Model B / 1.4

Server High Level Diagram (Visio)
ICC User Manual

N/A

The Server is configured to operate perpetually. If its power supply is interrupted it should return to nominal operation once power is restored.

2018-12-26

Server Maintenance Log

The Server is a component of the Telecommunications System. Additionally it interfaces with the Energy System.

Container Switchboard, Inverter, Battery Monitor, Router, Router (WiFi)

ICC are reluctant to migrate licences, restricting the feasibility of upgrading the server hardware without incurring software licensing costs.