seamless device connectivity with iotivity and zephyr · seamless device connectivity with iotivity...

Seamless Device Connectivity with

IoTivity and Zephyr

2/8/2018

By

Rajesh Sola,

Education Specialist

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2/8/20182

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Global Footprint


Headquartered in Pune (India)

Incorporated in 1990

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Corporate Quick Facts


Outline

• IoTivity Architecture & API support

• Running Examples & Working with Simulator

• OCF Standard Specifications

• Introduction to Zephyr OS, Network Stack

• IoTivity-constrained on Zephyr

• OCF Automotive Project

• IoTivity ports in Automotive Distributions(GENIVI, AGL)

2/8/20188


Hands-on Bundle - Checklist

IoTivity source code & built example (v1.2.1)

Eclipse with IoTivity Simulator

Zephyr source code (v1.9.2), Zephyr SDK (0.9.x)

IoTivity-Constrained source (code github.com/iotivity/iotivity-constrained)

OCF/OIC Specifications

wiki.iotivity.org

RAML Files - oneiota.org

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IoTivity

Discussion


IoTivity

• Seamless Device to Device Connectivity

• Reference Implementation for OIC/OCF standards

• Cross platform support

• Essential Building Blocks

– Discovery

– Data Transmission

– Data Management

– Device Management

• Built on top of existing standards

– CoAP

– CBOR

– DTLS

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Platform Support

• OS Environments

– Generic Linux (Debian/Ubuntu)

– Yocto **

– Tizen

– OpenWrt

– Windows, Mac OS

– Android, iOS

• IoTivity-constrained

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• Desktop

• Reference Targets/SBCs

(Typically Yocto based)

– Minnowboard

– Intel Edison

– RaspberryPi series

– Samsung ARTIK series

– Odroid series

– Draganboard 410C

– Imx6 series

• MCU Based

– Arduino (Due) https://wiki.iotivity.org/hardware

https://wiki.iotivity.org/os

https://wiki.iotivity.org/hardware

https://wiki.iotivity.org/os


APIs & Protocol Stack

2/8/201814

C APIsC++

APIs

Java

APIsNode.js

github.com/otcshare/iotivity-node


Building IoTivity & Examples

• Source code availability : www.iotivity.org/downloads

• Install necessary dependencies

• Clone external libraries – tinycbor, mbedtls

• Build using scons

• For detailed instructions : wiki.iotivity.org/build

• Locate built examples w.r.t out/${TARGET_OS}/${TARGET_ARCH}/${BUILD_MODE}

– resource/examples/*

– service/*

– resource/csdk/stack/samples/linux/*

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Demo/Hands-on

http://www.iotivity.org/downloads


Working with Simulator

2/8/201817

https://wiki.iotivity.org/iotivity_simulator

Demo/Hands-on


OCF Standard Specifications

Discussion


Open Connectivity Foundation(OCF)

• Formerly Open Interconnect Consortium(OIC)

• Fill the gaps in IOT standards

• Secure Interoperability

• Elements

– Standard Specifications - OCF

– Reference Implementations - IoTivity, AllJoyn

– Data Models - OneIoTa

– Device Certification

• Market Segments/Verticals

– Smart Home

– Automotive

– Health Care

– Smart Industry

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StandardsReference

Implementation

Vertical Profiles & Data Models

Certification


OCF Architecture & Elements

• Client

• Server

• Resource

• CRUDN

• Messaging

• Transport

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Major Aspects:-

• Resource Model

• RESTful Operations

• Abstractions


Functional Block Diagram & Communication layers

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Framework:-

• Identification & Addressing

• Discovery

• Resource Model

• CRUDN

• Messaging

• Device Management

• Security

OCF Roles

OCF- non OCF Bridging


Resource Models

• Resources are

– Hosted by server

– Accessed by client

• Resource Encapsulation

• Resource Container

• Bridging scenarios

– OCF to OCF

– OCF to Non OCF

2/8/201823

rt Resource Type

if Resource Interfaces

n Name

id Resource IdentityCommon Properties

of Resources


Request-Response Flow

2/8/201824

Request: /GET

Response : State

Response : Ok

Request : /POST On

Client Server


Interfaces

2/8/201825

Baseline oic.if.baseline

linkslist oic.if.ll

Batch oic.if.b

read-only oic.if.r

read-write oic.if.rw

actuator oic.if.a

sensor oic.if.s


Identification and Addressing

• Network Address

• URIs

– Fully Qualified

– Relative

• Namespace in URI

• Resource Identification

– Resource Type

– Interface

– Properties

• Common Resources

2/8/201826

{

"rt": "oic.r.foobar",

"if": "oic.if.a",

"value": "foo value"

}

Resource

Type

URI

Device oic.wk.d /oic/d

Platform oic.wk.p /oic/p

Discovery oc.wk.res /oic/res

Presence oc.wk.ad /oic/res


Resource Discovery & Introspection

• CoAP based endpoint discovery

• Advertising & Discovery

• Discover all devices

GET /oic/res

• Resource specific discovery

GET /oic/res?rt=oic.r.switch.binary

• Provisioning

– onboarding

– configuration

• Resource Directory

• Payload formats

2/8/201827


CRUDN Operations

• RESTful API model

• CRUDN operations

• CoAP Transport Layer

• CRUDN-REST mapping

• CBOR Data Format

• Future Transports

2/8/201828

C - CREATE

R - RETRIEVE

U - UPDATE

D - DELETE

N – NOTIFY *


Data Models – oneIoTa.org

2/8/201829


Device Profiles

• Automotive

• Smart Home

• Smart Industry

• Healthcare

2/8/201830


Network and Connectivity

• L2 Connectivity

• Networking

• Transport

• Framework

• Application Profiles

2/8/201831


Zephyr

Discussion


Introduction to Zephyr

• Small Scalable Open Source RTOS

• Single Address Space

• Linux Like

– Driver Model

– Configuration Model (KConfig)

– Device Tree Bindings

• Wide spread of targets

• Reuse of existing stacks & satndards

• IOT Friendly

– Rich Drivers & APIs

– Network Stack

– Support for BLE and PAN

– Protocol Support

2/8/201833

Little Brother

Of Linux!!


Network Sub System

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• L2 Stack and Drivers

• IPv6 support

• 6LowPAN over BLE, IEEE 802.15.4 and RPL

• BSD Compatible Socket APIs – TCP, UDP

• Application layer Protocols

– MQTT, HTTP, CoAP, LWM2M

• Added security – TLS, DTLS

• Working with Qemu without target board

• github.com/zephyrproject-rtos/net-tools


Zephyr System Architecture

2/8/201835


Running Zephyr Examples

2/8/201836

ARM Cortex-M3

• Setting up SDK

• Hello World Program

• Semi hosting output

x86 Arch

Demo/Hands-on


IoTivity-Constrained

Discussion


IoTivity-constrained

2/8/201838

Ref:- https://wiki.iotivity.org/constrained

https://github.com/iotivity/iotivity-constrained

Available

Ports


OCF in Zephyr

2/8/201839

Demo/Hands-on


OCF in Automotives


OCF’s Automotive Project

• Interoperable standard for connected

vehicles

• Basis for

– V2X solutions

– Smart Phone Interaction, eg:- RVI

• Initial data models for IVI and HVAC

(OneIota.org)

2/8/201841

openconnectivity.org/business/markets/automotive


IoTivity in Automotive Distributions

• meta-oic layer in Yocto based distributions - GENIVI & AGL

• Currently IoTivity 1.2.1 (OIC 1.1) is implemented in meta-oic layer

2/8/201842

wiki.iotivity.org/automotive wiki.iotivity.org/yocto

Technologies for a better world

Thank you

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