This document provides an overview of new media and communication technology topics including MQTT protocol, securing MQTT communication, Docker vs virtualization, LPWAN technologies like LoRaWAN protocol, and demo setups involving SmartSwarm, Unitronics PLC, and Grafana dashboard. It also discusses OPC UA, workshops on relevant topics, and provides a Q&A.

1. NEW MEDIA AND COMMUNICATION TECHNOLOGY
IoT Devices and Robotics
Geef Industry 4.0 een boost!

2. NEW MEDIA AND COMMUNICATION TECHNOLOGY
Inhoud
• Wie zijn we?
• MQTT protocol
• Securing MQTT communication
• Docker (containers) vs Virtualisation
• LPWAN technologies
• LoRaWAN Protocol
• Gerealiseerde opstellingen
• SmartSwarm
• Unitronics PLC
• Demo

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Wie zijn we
• Tom Decavele (alias TDC) – tom.decavele@howest.be
• Praktijklector MCT
• Trajectverantwoordelijke IoT Infrastructure Engineer
• Henk Bostyn – henk.bostyn@howest.be
• Lector MCT & ENM
• Projectmedewerker VEG-i-TEC

4. MCT
VEG-i-TEC => Industry 4.0
• Oprichting van een proeftuin voor de
groente- en aardappelverwerkende
bedrijven.
• Doel : innoveren en optimaliseren van
processen
• Simuleren van proceslijnen op pilootniveau
• De focus zal liggen :
• Evalueren nieuwe technologie
• Watermanagement (+desinfectie)
• Hygiënisch ontwerp
• Industry 4.0 (Connectivity, AI, …)

5. MCT
Bachelor in het energiemanagement – 5
pijlers

6. MCT

7. MCT
Bachelor MCT – Multimedia & Communication Technology

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The IoT Generation?
“De Internet Applicaties van Morgen Realiseren”

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Het internet van morgen: een brein met zintuigen
Sensors Webservice
Distributed
system
Database
ML- AI
User interfaces

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IoT Infrastructure EngineerAI Engineer
Web App Developer Smart tech & AI Creator

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MQTT protocol (Message Queuing Telemetry Transport)
• M2M data transfer protocol
• Lightweight
• Bidirectional
• Secure communication
• Payload in any format
• Lots of flexibility
• Popular MQTT brokers:

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MQTT topics
• Topics have no begin and end slash
• Topics are case-sensitive
• Topics permits empty spaces
• Topics must contain at least 1 character
• Devices can have subscription to one or more topics

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MQTT topics
• Wildcard “+” : a single level wildcard

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MQTT topics
• Wildcard “#” : multi-level wildcard

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MQTT QoS (Quality of Service)
• Fire and forget : QoS 0
• Delivered at least once : QoS 1
• Delivered exactly one : QoS 2

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Securing MQTT communication
• Default: cleartext communication – TCP 1883 = default port for a MQTT broker
• Security options:
• Username and password (TCP 1883) – messages are NOT encrypted! Credentials sent in
the clear …
(My suggestion: Don’t use it …)
• SSL/TLS Certificates (TCP 8883) – messages are encrypted!
• You can combine both, you can opt for:
• local communication: unencrypted, access to the LAN should be secured
(physical/firewall/…)
• remote communication: encrypted – secure bridge communication to central/main broker

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Docker (containers) vs Virtualisation
Two big similarities:
• each is designed to provide an isolated environment in which to run an application
• that environment is represented as a binary artifact that can be moved between hosts
Containers virtualize the operating system instead of hardware
• making containers both more portable and more efficient than VMs

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Docker (containers) vs Virtualisation

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LPWAN Techologies: what is LPWAN?
• LPWAN stands for Low Power Wide Area Network
• Electromagnetic signals achieve a better reach when:
• More power
• Low frequency
• Repetition
• Other frequency then the rest of the signals
• Open space and reflections
• Absence of jamming signals

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Criteria to choose a LPWAN technology
1. Coverage & range
2. Mobility (mobile or static use)
3. Performance
• Energy/battery usage
• Reaction speed & reliability
• Amount of data
• Connection frequency
4. Two-way communication
5. Battery life
6. Security
7. TCO

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LPWAN Technologies
• LoRaWAN
• Sigfox
• NB-IoT
• LTE-M
• 5G

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LPWAN Overview
Protocol Frequency Latency Duplex mode Downlink speed Network Security Engergy use
LoRa ISM 8 sec Half 290-5470 bit/s No PKE Low
Sigfox ISM High Half 100 bit/s No Simple Low
NB-IoT License 0,25 – 11 sec Half
200kbit/s down
20 kbit/s up Yes SIM Medium
LTE-M License 10 – 15 msec Half 50k-1Mbit/s yes SIM Medium
5G License < 1msec Full
20Gbit/s down
10Gbit/s up Yes SIM High

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TTN = The Things Network – www.thethingsnetwork.org
LPWAN Operators
LPWAN operators LoRaWAN Sigfox NB-IoT LTE-M
Belgium Proximus
TTN
Engie M2M Proximus
Orange
Orange
The Netherlands KPN
TTN
Hyrde Networks T-Mobile
Vodafone
KPN
Vodafone
T-Mobile
Luxemburg Proximus
TTN
RMS
France Orange
Bouygues
TTN
Sigfox France Orange
Germany TTN Sigfox Germany T-Mobile
Vodafone
T-Mobile
United Kingdom TTN WND UK

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Sub-AgendaLoRaWAN Network Protocol
Low Power Wide Area Network (LPWAN)
• Bidirectional
• Simple Star Network Topology
• Low data rate
• Low cost
• Long battery life
Ideal for:
• Internet of Things (IoT)
• Machine-to-Machine (M2M)
• Industrial Automation
• Low Power Applications
• Battery Operated Sensors
• Smart City
• Smart Meter
• Smart Agriculture
Enables simpler network
architecture:
•No repeaters
•No mesh routing complexity

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Sub-AgendaLoRaWAN Network Protocol

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LoRaWAN Network Protocol
• In Europe on 868MHz band
• Proprietary Spread Spectrum Technology by Semtech – Chirped-FM
• Payload from 59 to 230 bytes, dependant on
• data rate (DR) – DR0 - DR7 – 250bits/s to 50 000bits/s
• spread factor (SF) – SF7-8-9-10-11-12 or FSK
• bandwidth (BW) – 125kHz or 250kHz

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LoRaWAN Network Protocol
• Type of end-devices
• Battery Powered – Class A
• Wakes up and sends its data
• Low Latency – Class B
• Periodic wakeup by the gateway
• No Latency – Class C
• Always on device – permanently powered

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Sub-AgendaLoRaWAN Network Protocol
At Howest – campus Kortrijk-Weide
• We have our private LoRa Multitech gateway
• January 2020, we will integrate one of our LoRa gateways in TheThingsNetwork (TTN)
End-devices
• AllThingsTalk Rapid LoRa Development kits – Mbili board with a Microchip RN2483 LoRa
module
• Pycom – LoPy4 and FiPy with Pysense board
• Microchip RN-2483-MOTE Kit
• Multitech mDot modules

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Task 1 : Overview

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Demo: Grafana dashboard (Reactor)
• Schneider Modbus => Python => Broker => Influxdb
• ESP32 => Broker => Influxdb
• Smappee (Energymanagement solution) => Broker => Influxdb
• Varta (Batterijbank) => Broker => Influxdb

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Task 2 : Overview
Stream
analytics
Stream
analytics
Azure
functions

32. MCT

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Demo : LoPy4 and FiPy with Pysense board
• Pysense board : sensorshield (Ambient light sensor,Barometric pressure sensor,Humidity
sensor,3 axis 12-bit accelerometer, Temperature sensor)
• LoPy4 (LoRa, Sigfox, WiFi, Bluetooth) devboard.

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Demo : SmartSwarm + Wise 4012E

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Demo SmartSwarm
Stream
analytics
Stream
analytics

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Unitronics
• Powerful multi-function PLC controller that provides
users with advanced communication support,
variety of built-in I/O configurations, and Virtual
HMI.
• Virtual HMI- the PLC stores and runs the program
logic as well as the HMI user application within the
PLC itself. This brings a unique advantage: you
can view and operate your machine, or access
your process via any mobile phone, PC, or remote
display device.
• Main
features: Ethernet/IP, MQTT, SNMP, SQL, Web
Server, FTP, SNMP, and more.

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OPC UA (Unified Architecture)
• Platform independent
• Successor of OPC classic
• Leading communication protocol for Industry 4.0
• OPC UA specifications :

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Security in OPC UA
• “firewallfriendly” i.e. it can be controlled and steered via standard network techniques.
• Several protocols have been made available
• Binary protocol
• SOAP (Simple Object Access Protocol) with HTTPS
• Encryptions are used to secure the data during transmission
• Use of certificates to authenticate the clients

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OPC UA and Industry 4.0
• Leading communication protocol
• OPC UA over TSN
• Time Sensitive Network
• Between PLC’s
• TCP/IP and web protocols

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Workshops en nascholing
• Een workshop op maat i.v.m. de volgende topics :
• MQTT (secure)
• Docker
• OPC UC
• LoRa/Sigfox
• Raspberry Pi /ESP32 (prototyping)

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Q&A

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Demo
• Dashboard Grafana Reactor (ESP32, Modbus, Python script, MQTT broker, InfluxDB, Grafana)
• Enkel eens door het dashboard gaan
• LoRa messages tonen en decoden
• SmartSwarm (MQTT messages, Python Script, Azure IoT Hub, Streaming Analytics, CosmosDB,
PowerBI
• Configuratie page
• MQTT broker berichten
• Azure IoT Hub page
• Streaming page
• Dashboard PowerBI
• Eventueel CosmosDB => reports

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Demo
• Unitronics
• OPC UA tonen in Kepware met warmteregeling
• Webserver en setpoint
• Misschien nog met subscribe message.
• MQTT messages tonen in MQTT.fx