Openhab Grafana and Influxdb

IOT&HOME AUTOMATION WARSAW
PROJECT
DATE CLIENT
2017.07.24
OPENHAB INFLUX UND GRAFANA
BACNET DATASOURCE

DISCLAIMER
TECH STUFF IS SUBJECT OF CHANGE OVER TIME AND MIGHT NOT BE
100% RELEVANT NOW. CHECK BEFORE USE. VIEWS ARE MY OWN.

“Adoption of newer connected home
solutions is still at the early adopter phase,
according to a recent survey by Gartner, Inc.
The survey, of nearly 10,000 online
respondents in the U.S., the U.K. and
Australia during the second half of 2016,
found that only about 10 percent of
households currently have connected home
solutions.”
–Gartner
source http://www.gartner.com/newsroom/id/3629117

Global Google Trends
2011-2017
source https://trends.google.com/trends/explore?
date=2011-06-23%202017-07-23&q=smart%20home

Local Google Trends
2011-2017
source https://trends.google.com/trends/explore?
date=2011-06-23%202017-07-23&geo=PL&q=inteligentny
%20dom

SMART HOME, IOT AND
HOME AUTOMATION
IS LIKE TEENAGERS SEX, (GLOBALLY) EVERYONE WANTS IT,
EVERYONE TALKS ABOUT IT, VERY LITTLE ACTUALLY DO IT

FOUNDED IN 2010
source openhab.org
story https://www.slideshare.net/egutierrezru/javamagazine20131112-dl

FOUNDED IN 2013
source eclipse.org

source https://docs.oracle.com/cd/E17904_01/doc.1111/e15020/
introduction.htm#OSBCA122
Enteprise Service Bus

OPENHAB 1.X ARCHITECTURE IS
RELEVANT
AND 2.X USES SAME CONCEPT
WHAT IS DIFFERENT THEN?

What is present with OH 1.x
Item Registry
Binding
Provider

Remarks
One thing (device) may have multiple channels

Things have a state

Item is linked to an channel

One bridge wires one or more things

Bridge is optional

Main improvements in 2.x
User perspective

Lower entry level

Discovery of things

Developer perspective

Cleaner separation of concerns

A bit more declarative approach (XML deﬁnitions)

(Slightly bigger framework complication)

BACNET
BUILDING AUTOMATION AND CONTROL NETWORK

“BACnet was designed to allow
communication of building automation and
control systems for applications such as
heating, ventilating, and air-conditioning
control (HVAC), lighting control, access
control, and ﬁre detection systems and their
associated equipment. The BACnet protocol
provides mechanisms for computerised
building automation devices to exchange
information, regardless of the particular
building service they perform.”
source https://en.wikipedia.org/wiki/BACnet

Remarks
Started in 1987

ANSI standard since 1995

ISO standard since 2003

Most popular in HVAC area
OSI layers

Physical

Data link

network

Application

Shortcut Map
source BACnet speciﬁcation

BACnet Application Layer
source https://sunilsavanur.wordpress.com/2012/08/12/

BACnet object types
Analog Input/Output/Value

Binary Input/Output/Value

Multi-state Input/Output/Value

Averaging

Command

File

…… 60 standard object types
source http://www.bacnet.org/

BACnet services
File Access

Object Access

Read/Write property

Remote device management

Virtual terminal

.. etc

BACnet IP frame 
(IP header)

BACnet frame 
(Virtual Network)

BACnet IP frame 
(Network Protocol)

BACnet APDU types
Unconﬁrmed PDU

Conﬁrmed PDU

Simple-ACK PDU

Complex-ACK PDU

Segment-ACK PDU

Reject PDU

Error PDU

Abort PDU

Thing
Bridge
extra one wire sensors
THE UNIT

Copy of dashboard data
Preview of copy of this dashboard available online: 
https://snapshot.raintank.io/dashboard/snapshot/
NCCJk3J79xsWtaRXlbI8Kj6u2Wnp3fas?
refresh=30s&orgId=2

Grafana
Data visualisation tool

Supports multiple data sources

InﬂuxDB

Graphite

Elasticsearch

Can draw a bar, pie charts as well as expose single
values

InﬂuxDB
Timeseries database

SQL-a-like query language

I GOOGLED FOR JAVA LIB IN
SPRING 2016
C library
Fork of 1st result
Legacy

NO EXAMPLES
NO TESTS
NO SUPPORT, POOR DOCUMENTATION

WITH PROPER QUERY GOOGLE
GOT IT
With some love I made it deployable

BACNET4J IS/WAS THREAD
SENSITIVE

I WRAPPED BACNET4J LOGIC
Raw bacnet main() used during tests
https://gist.github.com/splatch/3216feba4bcad3cfd741644552f93870

Items (OH 1.x syntax)
Number Air_Flow "Temperatura nawiewu [%.1f] °C" <temperature>
(Ventilation)
{ bacnet="device=2251,type=analogInput,id=0,refreshInterval=10000" }

Number Air_Recirculation "Wymiennik [%.1f]%" <fan> (Ventilation)
{ bacnet="device=2251,type=analogOutput,id=1" }

Number Air_Suply_Fan "Wentylator nawiew. [%.1f]%" <fan> (Ventilation)
{ bacnet="device=2251,type=analogOutput,id=2,refreshInterval=1000" }

Number Air_Exhaust_Fan "Wentylator wywiew. [%.1f]%" <fan>
(Ventilation)
{ bacnet="device=2251,type=analogOutput,id=3,refreshInterval=1000" }

Persistence conﬁguration
Strategies {

everyMinute : "0 * * * * ?"

default=everyUpdate, restoreOnStartup

}

Items {

* : strategy = everyUpdate, everyMinute, restoreOnStartup

}

Sitemap (basic ui)
Frame label=“Rekuperator" { 
Text item=Air_Flow

Setpoint item=Air_Setpoint step=0.2 minValue=15 maxValue=30

Text item=Air_Recirculation icon="bypass"

Selection item=Air_Season icon="sun" mappings=[ 
"1.0" = "Lato", "2.0" = "Zima", "3.0" = "Auto"]

Text item=Air_Suply_Fan

Text item=Air_Exhaust_Fan

Selection item=Air_Mode mappings=[ 
"1.0" = "Tryb 1", "2.0" = "Tryb 2", "3.0" = "Tryb 3", "4.0" = "Program"]

}

HOW TO FIND ME
Twitter: ldywicki
https://community.openhab.org

Openhab Grafana and Influxdb

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