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03_Notes.md

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Exchange Formats in IOT

XML

Extensible Markup Language. Keys always known for Values.

  • Readability: Easiliy human readable, machine readable

  • Speed: Fast at certain uses

  • User-friendliness: Easy to use

  • Example:

     <?xml version="1.0"?>
 <catalog>
    <book id="bk101">
 	  <author>Gambardella, Matthew</author>
 	  <title>XML Developer's Guide</title>
 	  <genre>Computer</genre>
 	  <price>44.95</price>
 	  <publish_date>2000-10-01</publish_date>
 	  <description>An in-depth look at creating applications 
 	  with XML.</description>
    </book>
 </catalog>

JSON

Similar to XML.

  • Readability: Easiliy human readable, machine readable

  • Speed: Depends on the use case

  • User-friendliness: Easy to use

  • Examples:

     {
   "squadName": "Super hero squad",
   "homeTown": "Metro City",
   "formed": 2016,
   "secretBase": "Super tower",
   "active": true,
   "members": [
 	{
 	  "name": "Molecule Man",
 	  "age": 29,
 	  "secretIdentity": "Dan Jukes",
 	  "powers": [
 		"Radiation resistance",
 		"Turning tiny",
 		"Radiation blast"
 	  ]
 	},
 	{
 	  "name": "Madame Uppercut",
 	  "age": 39,
 	  "secretIdentity": "Jane Wilson",
 	  "powers": [
 		"Million tonne punch",
 		"Damage resistance",
 		"Superhuman reflexes"
 	  ]
 	},
 	{
 	  "name": "Eternal Flame",
 	  "age": 1000000,
 	  "secretIdentity": "Unknown",
 	  "powers": [
 		"Immortality",
 		"Heat Immunity",
 		"Inferno",
 		"Teleportation",
 		"Interdimensional travel"
 	  ]
 	}
   ]
 }

Rest of Formats

Consortiums / Foundations / Alliances

OCF

  • Title: Open Connectivity Foundation
  • Notable Members:
    • Intel (founder)
    • Microsoft
    • LG
    • Samsung (founder)
    • Qualcomm
  • Purpose: Develops standards for IoT, Product certfications
  • Cost / access to consortium (for becoming a member):
    • Basic (annual 0$) - Diamond (annual 350.000$)

AllSeen Alliance

  • Title: AllJoyn is an open source software framework that makes it easy for devices and apps to discover and communicate with each other.
  • Notable Members:
    • Microsoft
    • LG
    • Qualcomm
  • Purpose: The AllSeen Alliance is dedicated to the widespread adoption of products, systems and services that support the Internet of Things with AllJoyn®, a universal development framework.

ThreadGroup

  • Notable Members:
    • ARM (founder)
    • Samsung (founder)
    • Nest (founder)
  • Purpose:
    • Connect and control IoT devices at home.
    • Providing a Thread which connects all devices at home.
  • Cost: 0$ - 100.000$
  • Features:
    • Simple for consumers to use
    • Always secure
    • Power-efficient
    • An open protocol that carries IPv6 natively
    • Based on a robust mesh network with no single point of failure
    • Runs over standard 802.15.4 radios
    • Designed to support a wide variety of products for the home: appliances, access control, climate control, energy management, lighting, safety, and security

IIC

  • Title: Industrial Internet Consortium
  • Notable Members: Intel, IBM, GE, Cisco, AT&T (founded in 2014) and Bosch, Huawei, SAP
  • Purpose: setting the architectural framework for industrial IoT - making it easier to adopt interconnected machines and intelligent analysis.
  • Cost: from $2500 to $150.000 in six levels of membership

Protocols

CoAP

REST over UDP

  • Example:
  • Purpose: Latency lower than HTTP
  • Software support: