Date post: | 15-Jul-2015 |
Category: |
Internet |
Upload: | christian-goetz |
View: | 302 times |
Download: | 3 times |
Support their clients to successfully transform their
business in a digitized and connected world
expertise in MQTT the protocol that drives the internet of things
Consulting for insurance companies and other industries
Consulting and Creating of Building Block for the Internet of Things
About us
SMART HOME LIVE
"
MOTIVATION
1
• Showcase objectives • Fire dangers
"
OVERVIEW
2
• 1st live demo - maintenance features • Basic architecture
"
SETUP
3
• Architectural details • 2nd live demo – break-in
detection
"
CONCLUSION
4
• Lessons learned • Outlook
Evaluate available technologies like MQTT, Eclipse SmartHome
We are not building a product!
Iterate and explore key features for an intelligent smart home
Showcase objectives
3 breaths can be sufficient to die
1 breath can have lifelong consequences
“Where there's fire there's smoke”
SMOKE DETECTORS are mandatory
In Germany 2018
In France 2015
In USA 2010
h#p://www.fusac.fr/countdown3smoke3detectors/!h#p://www.rauchmelderpflicht.eu/download/Uebersicht_Rauchmelderpflicht.pdf!
temperature sensor
MQTT-Broker
laptop
mobile device
publish: “21°C“publish: “21°C“
publish: “21°C“
subscribe
subscribe
1 subscribe totopic: “temperature“ 2 publish to
topic: “temperature“
Why MQTT ?
Bandwidth Efficient
Push Capability Works great behind a Firewall
Quality of Service Levels
Topics – Topic Tree
myhome!
livingroom!
bedroom!
smoke3detector!
temperature!
smoke3detector!
temperature!
/! /!
otherhome!
Topics
myhome!
livingroom!
bedroom!
smoke3detector!
temperature!
smoke3detector!
temperature!
/! /!
otherhome!
Topics
myhome!
livingroom!
bedroom!
smoke3detector!
temperature!
smoke3detector!
temperature!
/! /!
otherhome!
Topics
myhome!
livingroom!
bedroom!
smoke3detector!
temperature!
smoke3detector!
temperature!
/! /!
otherhome!
Topics
myhome!
livingroom!
bedroom!
smoke3detector!
temperature!
smoke3detector!
temperature!
/! /!
otherhome!
Topics
myhome!
livingroom!
bedroom!
smoke3detector!
temperature!
smoke3detector!
temperature!
/! /!
otherhome!
• Open!Source!• “Reference!ImplementaEon”!• Many!languages:!Java,!Javascript,!Lua,!C,!C++,!Go,!Python!!• AcEve!Community!
Eclipse Paho
MQTT Publish
MqttClient mqttClient = new MqttClient
("tcp://localhost:1883", “publisher");
mqttClient.connect();
mqttClient.publish(“test","test123".getBytes(),0, true);
MQTT Subscribe
MqttCallback mqttCallback = new MqttCallback() { @Override
public void messageArrived(String topic, MqttMessage mqttMessage) {
System.out.println(topic +" "+ new String(mqttMessage.getPayload())); }
}; MqttClient mqttClient = new MqttClient("tcp://localhost:1883", “subscriber"); mqttClient.setCallback(mqttCallback); mqttClient.connect(); mqttClient.subscribe(“test",2);
HiveMQ – at a glance
High Performance MQTT Broker ! ! Open Plugin System
Highly Scalable ! ! Supports Bridge Protocol
Clustering ! ! Native Websockets Support
MQTT Architecture
Publish • Testalarm
Subscribe • Alarm • Status • Battery Status
Publish • Alarm • Status • Battery Status
Subscribe • Testalarm
Webdashboard
Emergency Service
any API
SMS (Twilio)
Integration of other Services
SQL/NOSQL!
Mobile!Devices!
MQTT!
P!L!U!G!I!N!
JDBC/other
HTTP
MQTT!over!Websockets!
MQTT!
Smart Home Devices
Communication • 868 MHz • BidCoS®-Protocol
(„Bidirectional Communication Standard“)
• Supports „AES signed commands“
Devices • Brand: HomeMatic • Sold by eq-3 (ELV) • Readily available • Many different devices
Hardware
Software
Inside the House
Homegear
(v1.6.0)!
(v0.5.732)!
Raspberry Pi (Modell B) CPU: ARM1176JZF-S (700 MHz) RAM: 512 MB Power: 5 V, 700 mA (3,5 W)
Busware CCD • CC1101 transceiver • ILI9341 based 2.8" TFT
Touch Display • culfw firmware
Extras • Transparent case
(busware) • WiFi-Stick • Antenna
Hardware
Software
Inside the House
Homegear
(v1.6.0)!
(v0.5.2436)!
Raspberry Pi 2 (Modell B) CPU: ARM Cortex-A7
(4 x 900 MHz) RAM: 1024 MB Power: 5 V, 800 mA (4 W)
Busware CCD • CC1101 transceiver • ILI9341 based 2.8" TFT
Touch Display • culfw firmware
Extras • Transparent case
(busware) • WiFi-Stick • Antenna
OpenHAB by Example
“openHAB is a software for integrating different home automation systems and technologies into one single
solution”
Core%Components%
Items% Protocol%Bindings% Automa6on%Logic%
Core Components were moved to eclipse:
OpenHAB by Example
Core%Components%
Items% Protocol%Bindings% Automa6on%Logic%
Alert!
Ba#e
ry!Status!
Homem
aEc!
MQTT!
Raise
!Alarm
!
Prop
agate!
Alarm!
Item definitions
/* Item format
TYPE ITEMNAME LABEL ICON (GROUPS) {BINDINGS}
*/
/* Group definitions */
Group:Switch:OR(ON,OFF) FireAlertDevices "Brandmelder"
/* Example item with binding */
Switch SmokeDetector1_Fire "Feueralarm Schlafzimmer" <fire> \ (FireAlertDevices,Schlafzimmer) \ {homematic="id=JEQ0736552, channel=1, parameter=STATE"}
Rule definitions
rule "Send MQTT messages on alerts" when
Item FireAlertDevices changed then
if (FireAlertDevices.state == ON) { // we find the alerting sd and only send an alert for the "first responder" var alertingSd = FireAlertDevices?.members.findFirst(sd|sd.state == ON) var String mqttItemName = "MQTT_" + alertingSd.name logDebug("MQTT", "Notifying mqtt item '{}'", mqttItemName)
postUpdate(mqttItemName, "ON") } else { logWarn("FireAlertDevices", "Ignored state change to " + FireAlertDevices.state) }
end
STEPS TO PRODUCTION
Hardening / Security Cloud TLS, Authentication, Authorization, High Availability
01
Encrypt Inhouse Communication 02
Sophisticated Hardware 03
Platform Improvements 04
Lessons Learned
! POSSIBLE TO BUILD A SOLUTION WITHOUT MUCH CODING
! THE SMART HOME WORLD IS CHANGING RAPIDLY
!INTERESTING OPEN SOURCE SMART HOME TECHNOLOGIES OUT THERE
!FOCUS ON ADDED VALUE AND INTEGRATE CERTIFIED SECURITY SOLUTIONS