Urb- IoT Developing a RESTful Communica>on Protocol and an Energy Op>miza>on Algorithm for a Connected Sustainable Home

Transcription

1 Urb- IoT 2014 Developing a RESTful Communica>on Protocol and an Energy Op>miza>on Algorithm for a Connected Sustainable Home So$rios D. Kotsopoulos, Federico Casalegno, Wesley Graybill, Adrià Recasens MassachuseAs Ins$tute of Technology

2 OUTLINE 1. Problem statement 2. Architectural solu>ons 3. Communica>on structure 4. RESTful protocol 5. Android Applica>on 6. psulu: Energy op>mizer 7. Contribu>ons and future work THE CONNECTED SUSTAINABLE HOME

3 1. PROBLEM STATEMENT ADDRESSING THE GLOBAL ENERGY CHALLENGE: IMPROVING ENERGY EFFICIENCY IN RESIDENTIAL BUILDINGS In 2012, residen$al buildings consumed nearly 40% of total energy usage in the U.S. Hea$ng and cooling accounted for 48% of the residen$al energy consump$on.

4 2. ARQUITECTURAL SOLUTIONS Deployment of: 1. Passive and ac+ve building technologies 2. Modular, prefabricated, transportable structure 3. Actuated components and switchable materials in windows 4. Cogenera+on plant (solar + heat) electricity 5. psulu: Real- -me energy op-mizer 6. Full implementa-on of the Web of the Things paradigm in home automa>on

5 2. ARQUITECTURAL SOLUTIONS

6 2. ARQUITECTURAL SOLUTIONS

7 3. COMMUNICATION STRUCTURE Communica>on constrains 1. Non- dependency on device- specific protocols 2. Scalability for large number of devices 3. Compa$bility with exis$ng technology 4. Security COMUNICATION STRUCTURE

8 3. COMMUNICATION STRUCTURE Naïve approach EXTERNAL DEVICE SAGE SERIAL PROTOCOL SERIAL PROTOCOL TCP PROTOCOL SAGE CONTROL ARDUINO CONTROL BOARDS KNX NETWORK SAGE SERIAL PROTOCOL SERIAL PROTOCOL TCP PROTOCOL p-sulu CONTROL COMUNICATION STRUCTURE

9 3. COMMUNICATION STRUCTURE Web of the Things paradigm COMUNICATION STRUCTURE

10 3. COMMUNICATION STRUCTURE Façade communica>on structure

11 4. RESTFUL PROTOCOL Representa>onal State Transfer (REST) Architecture 1. Scalability of the component interac$ons 2. Generality of interfaces 3. Independence in the deployment of components 4. Existence of intermediaries that make the system safest

12 4. RESTFUL PROTOCOL - Path Structure Uniform Resource Iden$fier (URI) Directory- based URI structure Path example: /home/window/c00 - Data Structure: JavaScript Object Nota$on Example: { id : c00, $nt :2, privacy :true, open :8, url : /home/ window/c00,"previous": "/home/window"} - Commands: GET: Retrieve the state of one resource PUT: Change the state of one resource

13 5. APPLICATION: ANDROID APP

14 5. APPLICATION: ANDROID APP

15 6. psulu: ENERGY OPTIMIZER Chance- constrained qualita>ve state plan

16 6. psulu: ENERGY OPTIMIZER Intui>ve explana>on of the algorithm

17 6. psulu: ENERGY OPTIMIZER Simula>on of control system Results of execu$on of the PID (propor$onal- integral- deriva$ve), Sulu, and p- Sulu controllers on January 1 and July 1.

18 6. psulu: ENERGY OPTIMIZER Comparison of energy use over a week- long schedule 19.8% of improving of psulu over PID

19 CONTRIBUTIONS & FUTURE WORK CONTRIBUTIONS OF THE CSH RESEARCH Deployment of passive and ac+ve building systems. Lightweight, modular, prefabricated, and transportable structure made out of natural materials. RESTful protocol compa$ble with common browsers Unified communica$on interface to communicate with all the home- devices Real- $me energy op$mizer. First known full applica$on of the WoT paradigm in home automa$on hap://mobile.mit.edu/gk/publica$ons/ hap://mobile.mit.edu/gk/ So$rios D Kotsopoulos skots@mit.edu Adrià Recasens recasens@mit.edu

20 References Guinard, D., Trifa, V., and Wilde, E A Resource Oriented Architecture for the Web of Things. In Proceedings of Internet of Things Interna+onal Conference, Tokyo, Japan, 1-8. Fielding, R.T Architectural Styles and the Design of Network- based Sojware Architectures. Ph.D. Thesis. University of California, Irvine. Graybill, W Robust, Goal- Directed Planning and Plan Recogni$on for the Sustainable Control of Homes. Master s Thesis, MIT. Guinard, D., and Trifa, V Towards the Web of Things: Web Mashups for Embedded Devices. In Proceedings of WWW 2009ACM. Kovatsch, M., Weiss, M., and Guinard, D Embedding Internet Technology for Home Automa$on. In Proceedings of 2010 IEEE Conference on Emergent Technologies and Factory Automa+on, Bilbao, Spain, 1-8. Kamilaris A., and Pitsilidis, A The Smart Home meets the Web of Things. Interna+onal Jounral of Ad Hoc and Ubiquitus Compu+ng, Volume 7, Issue 3, May 2011, Kolter, J. Z., and J. Ferreira, J A large- scale study on predic$ng and contextualizing building energy usage. In Proceedings of Twenty- FiMh AAAI Conference on Ar+ficial Intelligence, Special Track on Computa+onal Sustainability, AI. THE CONNECTED SUSTAINABLE HOME