Keio USN with Sensor-Over-XMPP

TutorialTakuro Yonezawa Keio University

Agenda• What is USN ? What is SOX ?

• Learning the Architecture

• Tools and libs developed by Keio Univ.

• Install libs and make the programs

• Java or Javascript

What is• Virtual Sensor Network Infrastructure developed and

operated by Keio University HT Lab.

• Flexible, Scalable, Dependable and Secure

• based on Sensor-Over-XMPP by CMU

• Added feature of participatory sensing, cross-domain federation, etc.

• Various libraries and tools are also available.

What is SOX?• Sensor-Over-XMPP (http://xmpp.org/extensions/inbox/

sensors.html)

• Using XMPP PubSub extension for sensor data publishing/subscribing

• Developed by Sensor Andrew Project in CMU

Anthony Rowe (CMU)

XMPP ?• Extensible Messaging and Presence Protocol (XMPP)

• A communications protocol for message-oriented middleware based on XML

• Open standard and uses an open systems approach of development and application

• Specification: RFC 6120, 6121, 6122

★ Decentralization ★Open standards ★ History ★ Security ★ Flexibility

Strength Implementation✓ ejabberd (erlang) ✓ Openfire (java) ✓ etc..

PubSub ?XMPP Server (MQTT server, etc..)

Event Nodes (alias:topic, channel)

economicnews

sportsnews

politicsnews

Publisher Subscriber

SubscribePubilsh

Sensor Andrew• Using PubSub for sensor/actuator network

• Defining Virtual Sensor Node as the pair of meta node and data node

• Sensor-Over-XMPP(SOX) specification defines a payload format for communicating sensor and actuation information

meta  node data  node(ex.  TestSensor_meta) (ex.  TestSensor_data)

Virtual Sensor(ex.  TestSensor)

TestSensor

Adapter

SOX libSubscribing

User

Sensor  Data  (via  Subscribing)

Meta  Data  (getting  cache)

Meta  Data  (only  once  sending)

Sensor  Data  (periodic  sending)

Meta-­‐data    Publish

XMPP  Server

meta  node data  node

<iq type='set'     to=‘pubsub.sox.ht.sfc.keio.ac.jp’    from=‘owner_of_a_sensor’    id='publish1'>  <pubsub xmlns='http://jabber.org/protocol/pubsub'>    <publish node=‘a_sensor_meta’>      <item id='current'>        <device xmlns='http://jabber.org/protocol/sox'            name='mote'            id='4d4335b0-4134-11e0-9207-0800200c9a66'            type=‘outdoor_weather'          <transducer           name='current temperature' id='temp' canActuate='false'           hasOwnNode='false' units='kelvin' unitScalar='0'           minValue='270' maxValue='320' resolution=‘0.1'>          <transducer           name='current humidity' id='humid' canActuate='false'           hasOwnNode='false' units='percent' unitScalar='0'           minValue='0' maxValue='100' resolution='0.1'>          </transducer>         </device>      </item>    </publish>  </pubsub></iq>

Meta publish (at sensor deployment step)

Sensor  data    Publish

XMPP  Server

<iq type='set'     to=‘pubsub.sox.ht.sfc.keio.ac.jp’    from=‘owner_of_a_sensor’    id='publish2'>  <pubsub xmlns='http://jabber.org/protocol/pubsub'>    <publish node='a_sensor_data'>      <item id='current'>        <data xmlns='http://jabber.org/protocol/sox'>          <transducerValue              id='temp'              typedValue='293.2'              timestamp=‘2011-02-25T17:13:20Z'/>

  <transducerValue              id='humid'              typedValue=’82.5’              timestamp='2011-02-25T17:13:20Z'/>         </data>      </item>    </publish>  </pubsub></iq>

meta  node data  nodedata publish (periodically)

Tools and Libs• Available from http://sox.ht.sfc.keio.ac.jp

• Developed by Keio Univ.

• Online testing toolsVisualization Application (Dashboard, Live Earth!)

• Sensorizer - make web as sensors

• SOX Libraries (Java, objective-c, JavaScript, Python)

Run the testing tool

1.Monitor the hogehoge node

2.Publish data

3.Check data will be shown in monitoring page

←check

←click

←click

←select

http://sox.ht.sfc.keio.ac.jp/tools/soxClient2.html

http://sox.ht.sfc.keio.ac.jp/tools/soxDataPublisher2.html

(1)

(2)

Surfboard

Live Earth!

Hello, SOX ! with Java SOX Lib

Hello, SOX!• Preparation: Install Java (>JDK7), eclipse

(recommend)

• Download JSoxLib.zip from http://sox.ht.sfc.keio.ac.jp

• Create new project in eclipse, import library of “JSoxLib.jar” and all jar file in “lib directory”.

• Run “example/subscribe.java”

Create New Project

set project name

1.7 or more

then, finish

Drag-to-Drop JSoxLib.jar and lib dir to created project

Then, you can see those files in the project

(1)click (2)clickOpen Project Properties (3)click

Build Path Setting

Add jar files

Select all jar files

(1)click

(2)click

(3)click

Drag-to-Drop example dir and src dir

Then, you can see those files in the project

(1)open Subscribe.java

(2)click run command

You can see raw XML communication for debugging

Message will be appear in your console

Use test publish tool in “sox.ht.sfc.keio.ac.jp”-> ・Test Sensor-Data Publishing

(1)select hedgehog node

(2)click

Then, you can see the published data when Subscribe.java is running

Or You can run Publish.java

SoxConnection con = new SoxConnection("sox.ht.sfc.keio.ac.jp", “YOUR_JID", “YOUR_PASSWORD", true);

SoxConnection con = new SoxConnection("sox.ht.sfc.keio.ac.jp", true);

Bind virtual sensor node in SOX to SoxDevice object

Connect to SOX sensor

As anonymous user

As registered user

SoxDevice soxDevice = new SoxDevice(con, "hogehoge");

Subscribe & register event listenersoxDevice.subscribe();soxDevice.addSoxEventListener(this);

1. Create “test_yourname” sensor node by your JID

2. Publish meta information to the node by your JID

•set 2 transducers :temperature and humidity

3.Subscribe the node, and publish sensor data to the node by anonymous user

See Create.java

See Subscribe.java

See Publish.java

For more understanding..

You can also monitor your sensor node by online monitoring tool or dashboard

Sensorizer• Make WEB page as Sensor

• Extracting data and send the data to PubSub node

• Checking the status via http://sensorizer.ht.sfc.keio.ac.jp:8888/list

• Monitoring the active sensor node by monitoring page

WEB Sensorizer Usage Guide

ver.20140614

{jin, takuro}@ht.sfc.keio.ac.jp

Jin Nakazawa and Takuro Yonezawa

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Install• Install the Chrome Extension of Sensorize It! to Google Chrome• Sensorize It! can be downloaded from

https://www.dropbox.com/s/ys2nzvg6dwdywil/chrome.crx

After install the extension, you can see the menu

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Usage Process1. Create a virtual sensor device

2. Add sensors(we call transducers) to the virtual sensor device

3. Configure the information of the device and transducers

4. Sensorize !

Just 4 steps :)

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1. Create a virtual sensor device

(1) right click where the text is appropriate as sensor node name

(2) Select this menu

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1. Create a virtual sensor device

You can edit name of the device, also define location of the device

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2. Add transducers to the device

(1) right click where you want to add the sensor information as transducer

(2) Select this menu33

3. Configure the information of the node and transducers

Define the transducer name and unit

lat&lon transducers are automatically added if you set the device’s location34

4. Sensorize ! Click

Click

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Architecture

(based on Sensor Andrew)Virtual Sensor Device (PubSub Node)

Subscribe App

App

App

App…

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