EVA ICS demo: Farm management

Live demo

@ https://demo-farm.eva-ics.com/

Layout

This demo deploys EVA ICS cluster to control virtual farm with two greenhouses.

Each greenhouse has own Universal Controller instance, which collects data from sensors:

• greenhouseX/env/temp - temperature
• greenhouseX/env/hum - humidity
• greenhouseX/env/soilm - soil moisture
• greenhouseX/env/ldr - light sensor (1 - ok, 0 - low)

Also, greenhouses are equipped with units:

• greenhouseX/pump - water pump
• greenhouseX/lamp - lighting lamps circuit

which can be turned on/off by operator or PLC.

In this setup, units use virtual relay drivers, port 1 for pump, port 2 for lamps. Sensors don't use any driver, user can set their values manually and simulate different events.

Logic

LM PLC has the following rules:

• If ldr sensor in greenhouse becomes 0 - turn the light on, otherwise turn the light off
• If soil becomes too dry ( < 85) - turn the pump on, if too wet ( > 110) - turn the pump off
• If the pump is turned on by operator, it should be automatically turned off in 30 seconds for greenhouse 1, in 45 seconds for greenhouse 2
• The pump should not be automatically turned off if it was turned on by operator but then measure monitoring detected that soil is dry
• macro start_manual_watering is called by operator, other macros are called by decision rules.
• Rules and automatic macros are programmed in universal way to use item props and _source object (in macros) to determine the event-related items. This allows the cluster to be extended with more greenhouses without creating any new macros.

Network and containers

• Both UCs are set up on dedicated nodes and dynamically discovered by LM/SFA and exchange data via MQTT server
• SFA and LM PLC are set up on the same node and statically connected via HTTP and exchange data via P2P connection
• eva_farm_mqtt local MQTT server (mosquitto), 10.27.12.200
• eva_farm_uc1 UC in greenhouse 1, 10.27.12.101
• eva_farm_uc2 UC in greenhouse 2, 10.27.12.102
• eva_farm_scada 10.27.12.199

• LM PLC (logic controller)
• SFA (aggregator, UI)

Deployment

Local

eva sfa cloud deploy -ys -c srv=$(hostname) \
    https://raw.githubusercontent.com/alttch/eva-demo-farm/master/deploy/farm-demo-single.yml

Docker

Requirements: Docker, docker-compose.

• Execute docker-compose up to deploy containers and demo configuration

Management

API

Default master key is: demo123

http://10.27.12.199:8828 - SFA API/primary operator interface

Components:

• http://10.27.12.101:8812 - UC in greenhouse 1 API/EI
• http://10.27.12.102:8812 - UC in greenhouse 2 API/EI
• http://10.27.12.199:8817 - LM PLC API/EI

The port 8828 is also mapped to main host.

UI

http://10.27.12.199:8828

SFA user credentials:

• login operator
• password 123

CLI

CLI management:

docker exec -it <container_name> eva-shell

e.g. enter eva_farm_scada node shell:

docker exec -it eva_farm_scada eva-shell

Event simulation

Sensor events can be simulated with:

./sensor-set.sh <greenhouse_number> <temp|hum|soilm|ldr> <value>