物聯網(IoT) 技術與應用 - 政大電算中心

1 (IoT): Chun-Feng Liao Department of Computer Science National Chengchi University 1 2 Internet of Things : One of the current top tech buzzwords The only thing people agree on is : Whatever it is, it is worth a lot of money. D. D. Guinard and V. M. Trifa Ubiquitous Computing Smart Things 4 5 Internet 1982 CMU Finger protocol Ashton 1999 IoT RFID EPCglobal 6 K. Ashton is the co-founder of MIT Auto-ID Center (now Auto-ID Labs) Internet of Things (Smart Things) Internet ICT 7 NEST 2014 Google 960 NEST 8 : preference Philips Hue 9 PC Home !

2 SDK! Nike + iPod 10 CES 2015 LG - Smart Home IoT Things Sensors, actuators, and other devices SOC Network : BLE, Zigbee, MQTT, HTTP, CoAP, XMPP Middleware Self-organizing, self-healing, self-learning, self-description, 12 13 Middleware Sensor 15 Human input Sensor (Smart Thing) sensors camera 17 LM35: Sensor 18 : LM35.

3 0V-5V 0~1023 5102351023rvvr : LM35 1 : LM35 19 OUT: 0-1023 ( ) Vcc Gnd Data 20 A0 return raw* ; Various sensor modules can be attached Mote MSP430 250kbps Low energy consumption Radio transmission range: 20m~30m 12,000 + 22 Arduino ATmega328 Zigbee 2000 Zigbee Shield + 23 Phidget API 2850 + (Sensor nodes) (Base station) USB/RS-232 PC Zigbee / Arduino Yun.

4 Temperature Humidity 27 C o 51% 1 2 MQTT Broker MQTT over WIFI MQTT over WIFI MQTT over WIFI / 35 6 1 2 2 4 2 2 4 : Web of Things 28 Web-based Mashup: : Web of Things Web Web Mashup ?

5 31 WoT 32 Web 33 RESTful Web Services R. Fielding HTTP Web Services REST is not a standard, but it describes the use of standards HTTP/ URL/ XML SOAP/WSDL Web Services ~fielding/pubs/ RESTful Web of Things URI (Resources) RESTful Web of Things (2) Client GET GET ? Resource RESTful Web of Things (3) Client GET RESTful Web Services (Representation) HTML, XML, JSON, .. Representation <state> <staple_no>4</staple_no> </state> Resource Client GET <state> <staple_no>4</staple_no> </state> Resource Client GET <state> <staple_no>3</staple_no> </state> Resource REST = Representational State Transfer ( ) Client GET <state> <staple_no>3</staple_no> </state> Resource Client PUT /recharge Resource <state> <staple_no>10</staple_no> </state> Method CRUD POST Create update, delete GET Read PUT Update create DELETE Delete POST.

6 Create with unknown ID, PUT: create with known ID CRUD HTTP Action 41 : Web sMAP (Simple Measurement and Actuation Profile) Berkeley David Culler RESTful Phidget Interface Kit Raspberry Pi Raspbian Embedded Linux JAX-RS sMAP : Web 60cm sMAP Mobile Sensor Web Mobile Sensor Web WoT IoT 44 45 : 46 47 : A Digital Art Performance based on Wearable Technologies Public performance on 5/8 (Kaoshiung) and 5/20 (Taipei) Wearable