Presentation on Device Management for Internet of Things Constrained Devices, OMA Lightweight M2M, given at the Internet of Things Thames Valley Meetup on 23 March, 2016

1. Device Management
for
Internet of Things
Constrained Devices
OMA Lightweight M2M
Duncan Purves
Connect2 Systems
duncan@connect2.io
http:connect2.io

2. Why do we need
Remote Device Management?

3. The devices are often deployed in
remote or difficult to access locations
locations
This impacts the cost of managing and maintaining the devices
Photo Source: Wikimedia Commons;; Author Peripitus

4. Must be easy to update device software
for 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

5. Security – you need to be able update device firmware

6. What challenges do we face?

7. 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

8. Constrained Devices and Networks
limited CPU and memory
limited communications bandwidth
on a wireless network

9. Device Management Standards

10. IoT Remote Device Management Standards
Historically 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/

11. OMA Lightweight M2M Deployment Scenario
© 2015 Open Mobile Alliance Ltd

12. Device Management -­ OMA Lightweight M2M Protocol
Protocol Stack
Overall architecture of the LWM2M Enabler
© 2015 Open Mobile Alliance Ltd

13. An Object defines a grouping of Resources, for example the Firmware Update Object
contains all the Resources used for firmware update purposes
© 2015 Open Mobile Alliance Ltd
LWM2M Resource Model

14. Device Management & Service Enablement Interface
© 2015 Open Mobile Alliance Ltd
§ Is used to access Resource and Object instances
§ Operations that can be performed include:
Ø Read, Discover, Write, Write Attributes, Execute, Create, Delete

15. LWM2M Objects defined by OMA LWM2M 1.0
© 2015 Open Mobile Alliance Ltd
Object Object ID
LWM2M Security 0
LWM2M Server 1
Access Control 2
Device 3
Connectivity Monitoring 4
Firmware 5
Location 6
Connectivity Statistics 7
Other organizations and companies may define
additional LWM2M Objects e.g. IPSO Alliance Smart
Objects
http://www.ipso-­alliance.org/

16. 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/

17. Eclipse Leshan Sandbox Server

18. Wide Area Gateway
Edge Gateway
IPv6/4 Cellular/Ethernet Interface
Connect2 Systems Device Management Solution
Wireless
Sensor Node
Wireless
Sensor Node
Wireless
Sensor Node
Wireless
Sensor Node
Cellular
Public/Private Data Network
LWM2M
Server
Remote
Management
Application
IoT
Application
Platform
Sensor
Data
Wireless
Sensor
Network
Manager
LWM2M Client
Smart Objects
MQTT
Broker
Sensor
Network
Manager
Interface
Cellular/Ethernet Router
IoT App
Platform
Protocols
FTP
Firmware Image
Compression +
Package Generator
LWM2M
Bootstrap
Server
DM
Client
DM
Client
DM
Client
DM
Client
6LoWPAN
© 2016 Connect2 Systems Limited

19. 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/