Open IoT Made Easy - Introduction to OGC SensorThings API
This is the slides presented at FOSS4G N.A. Conference. This presentation will introduce and demonstrate the OGC SensorThings API. The OGC SensorThings API is a new Open Geospatial Consortium standard that provides an open and unified way to interconnect the Internet of Things (IoT) devices, data, and applications over the Web. Unlike the traditional OGC standards, SensorThings API is very simple and efficient. At the same time, it is also comprehensive and designed to handle complex use cases. It builds on a rich set of proven-working and widely-adopted open standards, such as the OGC Sensor Web Enablement (SWE) standards, including the ISO/OGC Observation and Measurement (O&M) and Sensor Observation Services (SOS). The main difference between the SensorThings API and the OGC SOS is that the SensorThings API is designed specifically for the resource-constrained IoT devices and the Web developer community. As a result, the SensorThings API follows the REST principles, the use of an efficient JSON encoding, and the use of the flexible OASIS OData protocol and URL conventions. We will also demonstrate several real-world applications of the OGC SensorThings API in emergency management and smart cities. In addition to introduce the specification, this talk will also demonstrate an end-to-end IoT application based on the open source libraries of the SensorUp SensorThings platform.
Recommended
More Related Content
What's hot
What's hot (20)
Viewers also liked
Viewers also liked (8)
Similar to Open IoT Made Easy - Introduction to OGC SensorThings API
Similar to Open IoT Made Easy - Introduction to OGC SensorThings API (20)
More from SensorUp
More from SensorUp (12)
Recently uploaded
Recently uploaded (20)
Open IoT Made Easy - Introduction to OGC SensorThings API
- 1. Open IoT Made Easy OGC SensorThings API Steve Liang, Ph.D. Founder/CEO, SensorUp Associate Professor, University of Calgary @steveliang
- 2. About Dr. Steve Liang ๏ Associate Professor, Geomatics Engineering, Uni. Calgary ๏ AITF-Microsoft Industry Research Chair on Open Sensor Web ๏ Chair OGC SensorThings API Standard Working Group ๏ Rapporteur, ITU-T SG12/11 on Internet of Things Test Specifications ๏ Founder and CEO, SensorUp Inc ๏ Father of Noah Liang
- 3. About SensorUp ๏ We develop Sensor Web and IoT Platforms ๏ the first implementation of the OGC SensorThings API ๏ We are leading several international IoT standard development efforts (OGC and ITU-T) ๏ We are a member of Eclipse and Open Geospatial Consortium
- 4. Think about some Thing
- 5. Your Shirt
- 6. Your Drink
- 7. Your Parking
- 8. Your Baby
- 9. Your Pacifier
- 10. Your Cat Poop
- 11. Sensor and Actuator Smart Things Network Operator Device- Cloud API Data and Analytics APP- Cloud API System Integrator/ Applicatio 1 2 3 4 5 6 7 IoT Value Chain Kura OGC SensorThings Paho Mosquitto Californium WhiskersWhiskers Whiskers
- 13. System of Systems ๏ The real potential of the Internet of Things Network Effect: The value of a network is proportional to the square of the number of users of the system (n²).
- 14. Today’s IoT Silos Network A Application A Thing A Network B Application B Thing B Network C Application C Thing C Network D Application D Thing D
- 15. “77% of surveyed IoT experts claimed that Interoperability is the biggest challenge currently facing the Internet of Things” “
- 16. Which hardware will Google choose to intentionally brick next? “ “the guardian
- 17. What is IoT Interoperability? ๏ (IEEE) Interoperability is the ability of two or more (IoT) systems or components to exchange information and to use the information that has been exchanged. ๏ (Brodie, 1993) Two components X and Y can interoperate (are interoperable) if X can send requests R for services to Y, based on a mutual understanding of R by X and Y, and if Y can similarly return mutually understandable responses S to X.
- 18. Is Open Source the Solution for IoT Interoperability?
- 19. Open Source can build silos too.
- 20. Open Standard + Open Source
- 21. Ask your IoT solution provider ๏ Is your solution Open Standards Compliance Certified? ๏ Open Standards means standards from recognized Standard Development Organizations (SDOs).
- 23. “OGC specifications are outdated and difficult to use…” “ Someone at FOSS4G N.A.
- 24. Eclipse Whiskers Whiskers: an open source implementation for OGC SensorThings API
- 26. SensorThings Entities - 2
- 27. There is where it starts http://URL/v1.0/ No Capabilities XML Hypermedia Driven Crawler/Search Engine Friendly
- 29. SensorThings URL Pattern http://URL/v1.0/Datastreams(id) http://URL/v1.0/Datastreams http://URL/v1.0/Datastreams(id)/Observations http://URL/v1.0/Observations(id)/Datastream Not Hierarchical!! The URL pattern itself is a powerful query language. Same URL pattern applies to SensorThings MQTT extension.
- 30. Quiz - 1 http://URL/v1.0/FeaturesOfInterest(id)/Observations Show me all Observations of this building 21.4 Celcius 35% RH 212 Occupants 3 employees needing coffee
- 31. Quiz - 2 http://URL/v1.0/Locations(id)/Things Show me all Things located in this building Thermostat Water tank Coffee Maker LED Lights
- 32. Quiz - 3 http://URL/v1.0/ObservedProperties(id)/Datastreams Give me all Temperature Datastreams Datastreams(1) Datastreams(2) ….
- 33. SensorThings $expand http://URL/v1.0/Datastreams?$expand=Observations Give me all Datastreams AND their Observations Give me all Datastreams AND their latest Observations http://URL/v1.0/Datastreams? $expand=Observations($top=1)
- 34. SensorThings $select http://URL/v1.0/Datastreams? $select=unitOfMeasurement Give me all Datastreams’ Unit of Measurement ONLY
- 35. SensorThings dataArray http://URL/v1.0/Datastreams(id)/Observations? $resultFormat=dataArray My bandwidth costs me! Give me the readings in compact form!!!
- 37. SensorThings Query Options http://URL/v1.0/Observations? $filter=result gt 10.9 http://URL/v1.0/Datastreams? $filter=substringof('temp',description)
- 38. SensorThings Geospatial Filter Locations?$filter=st_within(location, geography'POLYGON ((-117.850341796875 53.93021986394, -117.850341796875 54.44449176335762, -116.75170898437501 54.44449176335762, -116.75170898437501 53.93021986394, -117.850341796875 53.93021986394))')&$orderby=id desc
- 39. DEMO
- 41. Event Filtering and Notifications https://www.youtube.com/watch? v=980CfUFTdgM&index=4&list=PLUSJC5mjKZ9RZJyzsLpFS0_Ziz8zGtYs9