open iot cloud architecture, web of things, shenzhen, china

Open IoT Cloud

Mokoversity

Jollen Chen, 2015.04.11, Shenzhen <[email protected]>

!

www.mokoversity.com

Mokoversity

Open IoT Cloud 设计思想

IoT 三件⼤大事 IoT 进⼊入与Web 融合的新阶段－Web of Things。 Google 为WoT 时代推出Physical Web 计画，ARM 也推出ARM mbed ⽣生态体系。 Big players 都在推展⾃自已的WoT ⽣生态与IoT Cloud 架构。

1 Going Web

2 Open IoT Cloud Architecture

IoT CloudIoT Device Mobile

3 Physical Object

http://wot.city/1/00886956590989/kitchen/sensor/dust/a

ws://wot.city/object/00886956590989/kitchen/sensor/dust/a

coap://wot.city/00886956590989/kitchen/sensor/dust/a

REST Object

Physical Web

GET /1/00886956590989/kitchen/sensor/dust/a

Web

Web of Things使用情境

IoT Device Mobile

HTTP 1.1/2.0HTTP 1.1/2.0

Light-weight Web server

Web Frontend

Physical ObjectHTTP 使用情境

http://wot.city/1/jollenchen/sensor/dust/a

IoT Device Mobile

HTTP 1.1/2.0Streaming Data

Physical Object Web Frontend

Physical ObjectWebsocket 使用情境

Real-Time Data

Broker

ws://wot.city/object/jollenchen/sensor/dust/a

IoT App In the form of URLs.

Smart Object

IoT Node

GET /1/00886956590989/kitchen/sensor/dust/a

HTTP Websocket

CoAP

http:// ws:// coap://

Websocket

HTTP 1.1/2.0

CoAP

IoT Cloud

IoT Device

IoT Device

IoT Device IoT Device

Mobile & Client

IoT Proxy

Open IoT Cloud Architecture

www.mokoversity.com

http://www.mokoversity.com

Privacy Security Personal

隐私性安全性个⼈人性

⾃自有云 TLS / SSL ⾃自有云

Privacy制造商收集你的个⼈人资讯，加⼯工后⽤用于商业⾏行为

集中化

现有的IoT ⽣生态，所收集的资料健康照护或个⼈人⽣生理监测数据，都朝向「集中化储存」的发展趋势。然⽽而，以个⼈人⽣生理资料来说，我们都是⽆无偿对这些「云服务」公司提供宝贵资料，这些公司对资料进⾏行分析与价值挖掘后，所取得的商业利益，是否能有⼀一个机制，能分享与回馈给提供「素材」的我们

Free

将数据储存到⾮非开放的IoT 云服务，是否能「取回」⾃自已的资料，会是⼀一个问题。储存在真正开放的IoT 云，才能解决这样的问题。开放式IoT 架构的意义，必须是⾃自由的：Personal Things

Libre Software

Gives users the freedom to run the software for any purpose as well as to study, modify, and distribute the original software and the adapted versions. (—wikipedia)

Libre IoT

Cloud

Gives users the freedom to ___ the personal data for any purpose as well as to ___, ___, and ___ the original data and the ______ versions. (—WoT.City)

Websocket

HTTP 1.1/2.0

CoAP

Personal Things

OSHW IoT

OSHW IoT

OSHW IoT

OSHW IoT

Mobile & Client

IoT Proxy

Open & Libre IoT Cloud Architecture

www.mokoversity.com

Open Standards

WoT.City IoT Cloud Architecture

Open IoT

Cloud

Open Standards

Personal Things

Free & Libre Things

Open Hardware

Web

IoT Cloud Framework

Hacker x

Maker

OSHW

「物联⺴⽹网装置终将免费」。在IoT Open Architecture 的理想中，消费者可以免费取得硬件。这个理想并⾮非不可⾏行，第⼀一个步骤，就是设法降低取得硬件的成本。⾃自造硬体（成为IoT 的创客），就是重要的起步

IoT

Smart Phone

Open Source CultureOpen

Hardware

Maker Culture

Free & App Economic

Free and Libre

Education & Training

WoT.C i t y

(C) 2015 Mokoversity Inc. v0.1.0 CONFIDENTIAL.

jollen <[email protected]> Mokoversity Inc.

Web of Things

Web-technolog MatrixHTML5/CSS/JS REST SPA WebSocket CORS Frontend

Patterns

Web Pages V

Web App V V

SPA V V V (Backbone)

Web Service V V (Server) V

IoT / WoT V V V (Client)V

(jQuery、Module、Closure)

IoT vs WoTIoT WoT

連結⽅方式 Bluetooth HTTP

數據管理 Centerlized Decenterlized

Things Objects RESTful Objects

應⽤用開發模式 Native Web (SPA)

硬件概念 Sensor Device Physical Web (Sensor Fusion)

Figure: Thinking in WoT. Copyright (C) 2014 Mokoversity Inc.

ConnectivityIoT WoT

Connectivity Machine to Machine LWM2M Machine to Web

Networking TCP / UDP HTTP / REST / CoAP

Things Sensor Device RESTful Objects

Data Streaming Data Time-Series Data

Discover MQTT Publish / Subscribe

Figure: Thinking in WoT. Copyright (C) 2015 Mokoversity Inc.

Source: http://coap.technology

REST model for small devices !

Like HTTP, CoAP is based on the wildly successful REST model: Servers make resources available under a URL, and clients access these resources using methods such as GET, PUT, POST, and DELETE.

http://coap.technology


Made for billions of nodes !

The Internet of Things will need billions of nodes, many of which will need to be inexpensive. CoAP has been designed to work on microcontrollers with as low as 10 KiB of RAM and 100 KiB of code space (RFC 7228).



Existing skills transfer !

From a developer point of view, CoAP feels very much like HTTP. Obtaining a value from a sensor is not much different from obtaining a value from a Web API.



Ready for integration !

Since HTTP and CoAP share the REST model, they can easily be connected using application-agnostic cross-protocol proxies. A Web client may not even notice that it just accessed a sensor resource!

ARM IoT Tutorial https://www.youtube.com/watch?v=4bSr5x5gKvA


https://www.youtube.com/watch?v=4bSr5x5gKvA

Websocket

HTTP 1.1/2.0

CoAP

CoAP

www.mokoversity.com

IoT Cloud

IoT Device

IoT Device

IoT Proxy

12

IoT Device

2

3

Mobile & Client

The Web of Things Protocol

3

From HTTP to CoAP

HTTP The Web protocol. !

CoAP The Web of Things Protocol. !

MQTT The TCP Protocol.

IoT Device

IoT Device

IoT Proxy

12

IoT Device

2

3

Constrained Environment

3

RESTful UDP M2M Wireless Sensor Network HTTP in Uniform way Simple Cache

IoT Device

IoT Device

IoT Proxy

12

IoT Device

2

3

Constrained Environment

3

Features of CoAP

WoT.C i t y

打造开放的WoT 开源方案

WoT.City Mokoversity

提倡开放的 WoT 创业思想

MakerWoTOpen

Hardware

Mokoversity x Seeed x Openmbed

mbed REST Object OS

ARM mbed

Source: http://mbed.org/technology/os/

mbed OS mbed™ OS is an operating system for IoT devices and is especially well-suited to run in energy constrained environments.

mbed Tools

Digital Interface

Networking

HTTPD & REST API

Websocket

HTTP

Websocket

CoAP

Collect and Assemble

Manage and Analysis

Frontend Composition Layer

API Driven Development

API

Business Logic

Data Access Layer !and Databases

Secu

rity

Logg

ing

“server-side implementations are becoming a thin layer with an API for data and security” (-Shiju Varghese)

“modern Web developers are writing their server-side code for both Mobile apps and Web apps” (-Shiju Varghese)

AutomationJS

Web Frontend

Boundary Compositor -!update DOM subtree

Data Compositor -!integrate the services and data Au

tom

atio

n JS

Composition Layer - programmable widgets !

Physical Mashup !

Building Blocks Pattern !

(…)

IoT Device Mobile

HTTP 1.1/2.0Streaming Data

Physical Object Web Frontend

Physical ObjectWebsocket 使用情境

Real-Time Data

Broker

ws://wot.city/object/jollenchen/sensor/dust/a

WoT.City IoT Cloud

Device Registration !

Device Container !

Websocket Broker (Channel) !

CoAP Broker (Channel) !

Data Compositor

ARM mbed IoT Devices !

Maker Kit !

In-place small data analytics

WoT.City IoT Device

IoT Application Layer Framework !

AutomationJS

WoT.City

Mobile and

Client

Jollen WeChat ID: jollentw <[email protected]>

Thanks

Mokoversity Openmbed