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Open-source tools and frameworks for M2M

Sierra Wireless Developer Days 2013 Benjamin Cabé

Who I am

•  Benjamin Cabé •  Open Source M2M Evangelist

•  Eclipse M2M IWG chairperson

Topics for this session

•  Open-source?

•  Eclipse Foundation

•  M2M Industry Working Group

•  Eclipse M2M projects

•  Sierra products built on OSS

50

bil l ion devices by 2020

Smart Pill Box

Heartbeat Sensor

Weight Scale

Blood Pressure

Medical Services Gateway

Near field

Blood Sugar

Internet of Things

Patient

Clinical Trial

Doctor

?

Eclipse is an open source community f o c u s e d o n d e v e l o p i n g a development platform of runtimes, frameworks and exemplary tools that make it easy and cost-effective to build and deploy software solutions.”

“

•  190+ organizations are members of the Eclipse Foundation, working with each other to leverage an open collaboration model, as well as marketing benefits.

•  Strategic members:

Eclipse has grown from a place where developers have been working on developing Open Source software, to a place where industry leaders work to focus, promote, and augment Eclipse technologies to meet the needs of specific industries.

“ Eclipse Industry Working Groups

http://m2m.eclipse.org

Our open-source strategy

IoT Building Blocks “We provide open-source developments tools and frameworks for M2M/IoT developers”

Our open-source strategy

IoT Building Blocks “We provide open-source developments tools and frameworks for M2M/IoT developers”

Interoperability “We provide reference implementations of open protocols and API to encourage interoperability”.

Our open-source strategy

IoT Building Blocks “We provide open-source developments tools and frameworks for M2M/IoT developers”

Interoperability “We provide reference implementations of open protocols and API to encourage interoperability”.

Open-Source Community “We host samples, testing environments and documentation on the m2m.eclipse.org portal”

http://m2m.eclipse.org

Open ecosystem for M2M

Third Party Ecosystem

Open M2M application framework and runtimes

Open M2M communication protocols

Internet of Things

Open M2M development tools

…

Framework

Tools

3 projects

Protocols

M2M embedded programming

•  low-level C

•  memory management

•  multithreaded programming

•  read sensor values

•  control actuators

•  consolidate data

•  communicate

Example: Sending an SMS int main(){ unsigned char char1[10]; unsigned char char_buf[8]="AT+CSQ\n"; // unsigned char sms_buf[20] = "AT+CMGS="xxxxxxxxx"; int wc_fd; /********* Init of serial port ************/ wc_fd = init_wc(wc_fd); sleep(3); //writing to serial port write(wc_fd,char_buf,sizeof(char_buf)); usleep(40000); //reading from serial port read(wc_fd,char1,sizeof(char1)); sleep(2); close(wc_fd); return 0;} // end of main// initialization of serial portstruct termios options;ttys5_fd = open("/dev/ttyS5", O_RDWR );if (ttys5_fd < 0){ printf("\nFail to open serial port 2\n"); return 0;}init_tty( ttys5_fd ,BAUD_RATE);return ttys5_fd;-----------------------------------//initializing baud rateint init_tty( int fd ,long wBaud){ long baud; switch (wBaud) {

sms.send( '+33612345678’, 'My SMS’ )

Simplify M2M programming

What is Lua?

•  High-level programming language

•  Scripting

•  Simple

•  Extensible

•  Portable

Extensible by design

•  Small – Trivial syntax and reduced keyword set

•  Simple but not stupid – Simple enough for new users, powerful enough

for advanced users (first-class functions, garbage collection, closures, tail calls, coercion, coroutines, metatables)

•  Lua core is tiny – Compiled size is ~150kB – Lua uses libraries for its extensions

Lua vs. other high-level languages

•  Same core features as Python, Ruby, Javascript

•  Better concurrency management – Built-in – doesn’t rely on the OS

•  Cutting-edge execution technology & performances

Lua vs. other high-level languages

•  Restricted set of libraries – Stay simple, the developer brings his own

•  Designed for C integration – Performance

– Legacy

Lua for embedded and M2M?

•  High-level languages usually trade hardware resources for development & maintenance resources

Lua allows to reconcile high-level languages accomplishments with embedded constraints

You need an IDE! •  Project structure

•  Syntax coloring

•  Content assist

•  Code navigation

•  Code formatting

•  Documentation

•  Code templates

•  Debugger

•  Remote development

•  Embedded interpreter

June 2012: first release (0.8) Dec. 2012: 0.9 release June 2013: 1.0 w/ Kepler 60,000 installations already!

Koneki demo

How do we communicate?

http://www.sxc.hu/photo/1036004

M3DA*

Compact … because in the wireless world, data overhead costs money –  Efficient in the transport of binary M2M data

Interoperable … because the M2M communication chain is heterogeneous –  Language-independent –  Tolerant to data schema changes –  Agnostic to transport layer (TCP, HTTP, SMS, …)

Secure … because security is #1 concern for M2M adopters

–  Ensure integrity and confidentiality of customer data –  Message ticket-id to enable acknowledgement

Open … because vendor lock-in hinders M2M adoption

*Micro M2M Data Access

M3DA Layered Architecture

Transport Layer M3DA EnvelopeEnables authentication, encryption, …

Application Layer M3DA MessageSpecify access to the tree-oriented data model

Serialization Layer BysantProvides an efficient binary serialization based on contextual information

HTTP

M3DA Transport

M3DA Payload M3DA

Message Command/Event/Time stamped data

Message Command/Event/Time stamped data

…

Headers - Device /Server Identification - Security auth, cipher, hmac, nonce… - Compression algo, dict selection, …

TCP UDP SMS*

Transport

Bysant Serializer

M3DA = M2M data optimization •  Object-oriented

•  Provides basic classes –  Numbers (Integers, Floating point numbers, Boolean) –  Strings (Binary string) –  Container objects (List, Map)

•  User-defined objects –  Allows to structure protocol objects (Message, Responses, DeltaVector,

…)

•  Serialization is optimized for M2M data –  Small numbers take less bytes –  5 ! 1 byte, 2040 ! 2 bytes –  String size header are adaptative –  1 byte for a 28-byte long string, but 3 bytes for 66k-byte long string.

•  Messaging protocol

•  Low-bandwidth / Low-power

•  Payload agnostic

•  Adjustable QoS

•  Large ecosystem

broker broker

(optional) bridge

publishsubscribe

keepalivelast will & testamentusername/password

topic/subtopic

topic/#

Lua VM + M3DA to go?

Application framework for M2M

•  Set of libraries providing building blocks to develop M2M applications: – Serial and I/O management,

– Networking (FTP, HTTP, e-mail, …),

– GPS,

– Modbus,

– Local storage,

– etc.

http://www.eclipse.org/mihini

Smart agent for M2M

•  M2M data queues

•  Network bearers

•  Device management

•  Application container

•  Application configuration

http://www.eclipse.org/mihini

Overall architecture

Asset management

•  User applications use an API to communicate with Mihini – Send data or events

– Register listeners to handle data writing or commands

•  The Mihini agent takes care of network connection, buffering and reliable storage of unsent data, etc.

Asset management

local gh_asset = asset_mgt.newAsset("greenhouse") gh_asset:start() gh_asset:pushdata("sensors.temperature", 22, "now") gh_asset:pushdata("sensors.humidity", 89, "hourly")

Device management

•  A Tree Manager presents device's data as – variables,

– organized in a hierarchical tree,

– that can be read, written, and monitored for changes by user applications.

Device management local devicetree = require 'devicetree' local APN = 'system.cellular.apn.apn' local RSSI = 'system.cellular.link.rssi' local apn = devicetree.get (APN) log(LOG_NAME, "INFO", "Configure APN: %s", apn) local function print_callback (values) for name, value in pairs(values) do log (LOG_NAME, "INFO", " - Variable %s changed: %s",name, value) end end devicetree.register(RSSI, print_callback) devicetree.set(APN, 'foo')

Application Management

•  Language-agnostic application container –  install/uninstall – start/stop, auto-start on boot – restart on failure

•  Agent handles over-the-air software download and update mechanism

•  Remote script execution

Let me show you!

A very common use case

•  Greenhouse business – Connect gardening equipment

– Remote monitoring of sensors

– Remote control

•  M2M Gateway not selected yet, neither is the rest of the equipment (PLCs)

DO YOU KNOW US?

Raspberry Pi Web browser

humidity temperature illuminance

light ON/OFF

Modbus RTU

M3DA REST API

Web

HTML5 / JS

–  OAuth

–  AirVantage REST API

–  Displays sensor data with a fancy UI

–  Publish command to switch on/off the light

Two applications Embedded

–  Uses Modbus library to communicate w/ Arduino

–  Collects sensor data/controls actuators

–  Publishes M3DA messages

–  Subscribe to commands

Rugged wireless gateways

control sensors & actuators

Mobile phones

Web applications

IT applications

Modbus

…

M2M server

Telco&

Billing& etc…&

Hardware differentiation

ruggedness | radio certification extensibility | services | support

Developer Zone

Software differentiation

industrial protocols

power optimization

development tools

vertical applications

real-time

professional services

…

24/7

3rd party services

security

billing

carrier integration

professional services

…

embedded server

In a nutshell

•  Prototyping made as simple as can be

•  Smooth experience for Linux-based devices

•  New languages are coming

•  A clear path towards Sierra Wireless offer

Thank you! Questions?

http://m2m.eclipse.org | http://eclipse.org/koneki | http://eclipse.org/mihini