sensorthings api webinar-#4-connect your sensor

OGC SensorThings API

Tutorial #4 - Connecting Your Sensors

uptime: 242 hours

# of broken lights: 5 RH: 19 % Temp: -22 Celsius

Dr. Steve Liang Chair, OGC SensorThings API Standard Working Group Founder and CEO, SensorUp Inc. Associate Professor, University of Calgary

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Agenda• Recap: OGC SensorThings Data Model and URL Patterns

• CREATE, UPDATE and DELETE entities

• Deep Insert

• Arduino and SensorThings

• Many Examples

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About Dr. Steve Liang• Associate Professor, Geomatics Engineering, Uni. Calgary

• AITF-Microsoft Industry Chair on Open Sensor Web

• Chair OGC SensorThings API Standard Working Group

• Co-Chair OGC Sensor Web Enablement Domain Working Group

• N.A. Chair, OGC University Domain Working Group

• Rapporteur, ITU-T SG12/11 on Internet of Things Test Specifications

• Founder and CEO, SensorUp Inc, a University of Calgary startup (http://www.sensorup.com)

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About SensorUp• We are a world leader in OGC Sensor Web and IoT

• We are leading several international IoT standard development efforts (OGC and ITU-T)

• We developed world’s first OGC SensorThings API implementation

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• Topic: Building an IoT Cloud Platform with Open Geospatial Standards

• Presenter: Dr. Steve Liang

• January 27th 2016

• http://www.meetup.com/Virtual-IoT/

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We will be in DC area from January 11~13 2016. Would love to meet! Beers on us!

SensorUp will be in DC area January 11~13 ’16.

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We will be back to DC area in March. Would love to meet! Beers on us!

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Data Model

Prerequisites

• Basic knowledge of REST (REpresentational State Transfer)

• https://en.wikipedia.org/wiki/Representational_state_transfer

• Basic knowledge of JSON (JavaScript Object Notation)

• http://www.json.org/

HTTP Verbs• POST

• create a new entity

• PATCH

• update partial resources

• DELETE

• remove an entity

Steps to Connect Your Sensors

Create Contextual Information

(the static data)Upload Readings

(the dynamic data)

1 2

1.Thing2.Location3.ObservedProperty4.Sensor5.Datastream

•Observation

Demo and GIST

• https://gist.github.com/liangsteve/9bbc095c9e417af63a6e

Best Practice #1: Reuse Existing Entities

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• Reuse existing entities if possible

• If an [ObservedProperty, Sensor] exists, create a link instead of creating a new but redundant entity.

• Benefit

• Faster analysis, better discoverability, improved performance

Best Practice #2

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• If you know your Sensors, ObservedProperties or even Locations already, create them first.

• Then adding a new Thing just need one POST request.

For example, say you are building an IoT Platform for Wifi Weight Scales

• Thing

• serial number 98312

• ObservedProperty

• Weight, http://dbpedia.org/page/Weight

• Sensor

• Load Sensor, https://www.sparkfun.com/products/13332

Integrity Constraints

Internet of Things Data Exchange Platform

(SensorUp DEP)

Internet of Things DevicesInternet of Things Applications

ISO/OGC Standards and Open Hardware Ecosystem

smart home, connected buildings, networked sensors / cameras,

etc.

Connect Your Arduino

• Instruction and Source Code:

• https://sensorup.atlassian.net/wiki/display/SPS/2015/12/02/SensorThings+API+-+Arduino+101

Useful Resources• SensorThings API Playground

• http://pg.sensorup.com

• API Documentation

• http://www.sensorup.com/docs

• GIST for today’s code

• https://gist.github.com/liangsteve/9bbc095c9e417af63a6e

See you next year!

• Upcoming Webinar Topics:

• SensorThings for real-time applications (MQTT Extension)

• SensorThings API and GIS integration

• SensorThings and Spatial Data Infrastructure

• SensorThings v.s. Sensor Observation Services

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Any Questions?

See You Next Year!