device management for internet of things constrained devices oma lightweight m2m

Device Managementfor

Internet of Things Constrained DevicesOMA Lightweight M2M

Duncan PurvesConnect2 [email protected]:connect2.io

Why do we needRemote Device Management?

The devices are often deployed inremote or difficult to access locations

locations

This impacts the cost of managing and maintaining the devicesPhoto Source: Wikimedia Commons;; Author Peripitus

Must be easy to update device softwarefor new features and bug fixes

Toyota

Recall 1.9 million Prius hybrids

Because of a software fault that may cause the vehicle to slow

down suddenly

Over-the-Air software update to its Model S vehicles

To fix an overheating issue

Tesla

Security – you need to be able update device firmware

What challenges do we face?

Challenges – Powering IoT devices and sensors

In many industrial situations the sensors/devices will be powered from batteries that require a lifetime of 5 - 10 years⁃ You do not want to flatten the battery when performing a firmware upgrade!

Photo Source: Wikimedia Commons;; Authors: Matthew D. Wilson LtPowers & Accu4all

Constrained Devices and Networks

limited CPU and memorylimited communications bandwidth

on a wireless network

Device Management Standards

IoT Remote Device Management StandardsHistorically there has been no industry standard for the remote management of M2M/IoT devices

This contrasts with industry standards available that cater for the remote management requirements of:

§ Fixed network broadband DSL routers (TR-69)§ Enterprise IP networks (SNMP)§ Mobile phones (OMA DM)

Leading Industry Forum the Open Mobile Alliance is developing a new industry standard for IoT constrained devices:

§ OMA LightweightM2M v 1.0 (LWM2M)http://technical.openmobilealliance.org/Technical/technical-information/release-program/current-releases/oma-lightweightm2m-v1-0

http://openmobilealliance.org/

OMA Lightweight M2M Deployment Scenario

© 2015 Open Mobile Alliance Ltd

Device Management - OMA Lightweight M2M Protocol

Protocol Stack

Overall architecture of the LWM2M Enabler


An Object defines a grouping of Resources, for example the Firmware Update Object contains all the Resources used for firmware update purposes


LWM2M Resource Model

Device Management & Service Enablement Interface


§ Is used to access Resource and Object instances§ Operations that can be performed include:

Ø Read, Discover, Write, Write Attributes, Execute, Create, Delete

LWM2M Objects defined by OMA LWM2M 1.0


Object Object ID

LWM2M Security 0LWM2M Server 1Access Control 2Device 3Connectivity Monitoring 4Firmware 5Location 6Connectivity Statistics 7

Other organizations and companies may define additional LWM2M Objects e.g. IPSO Alliance Smart Objects

http://www.ipso-alliance.org/

LWM2M Open Source Clients & Servers

§ Leshan is an Eclipse project LWM2M Server implementation in Java

§ Wakaama is an Eclipse project LWM2M Client

§ hawkBit is an Eclipse project that aims to create a domain independent back end solution for rolling out software updates

https://projects.eclipse.org/projects/technology.wakaama

https://projects.eclipse.org/projects/iot.hawkbit

http://www.eclipse.org/leshan/

Eclipse Leshan Sandbox Server

Wide Area Gateway

Edge Gateway

IPv6/4 Cellular/Ethernet Interface

Connect2 Systems Device Management Solution

Wireless Sensor Node




CellularPublic/Private Data Network

LWM2M Server

Remote ManagementApplication

IoTApplicationPlatform

Sensor Data

Wireless Sensor Network Manager

LWM2M Client

Smart Objects

MQTT Broker

Sensor Network ManagerInterface

Cellular/Ethernet Router

IoT App PlatformProtocols

FTP

Firmware Image Compression + Package Generator

LWM2M Bootstrap Server

DM Client

DM Client

DM Client

DM Client

6LoWPAN

© 2016 Connect2 Systems Limited

devicepilot

We will demonstrate end-to-end remote management with ‘devicepilot’ cloud based software service at the next IoT Thames Valley Meetup on 25 May, 2016

http://www.meetup.com/Internet-of-Things-Thames-Valley/

http://www.devicepilot.com/

device management for internet of things constrained devices oma lightweight m2m

Technology