Armando Roy

HOME-NETWORK REMOTE CONTROL

INTRODUCTION

Objectives Home-Network Why Remote Control? Proposed Home Automation System

– X-10– GSM– Internet Protocol

Interfaces & Middleware Conclusion

NEWI North East Wales Institute of Higher Education

OBJECTIVES

Develop a Home Automation Remote System

Use different inner and outer network technologies

Use devices that are easy to install

Use low-price materials and devices

Make it suitable for inexperienced users or even disabled people

Make it scalable for further add-ons

Manage multiple control points

Encourage standardization

NEWI North East Wales Institute of Higher Education

HOME-NETWORK

Figure 1: The Home-Network

NEWI North East Wales Institute of Higher Education

WHY REMOTE CONTROL?

Enables control from almost anywhere (more comfortable)

Instant alerts greatly increase security

Backup emergency control

Optimal for people with reduced mobility

It can be combined with local control to give higher flexibility.

The network hierarchy has been rapidly moving lower in the chain towards smaller and more personal devices (Canosa, 2001)

NEWI North East Wales Institute of Higher Education

PROPOSED HOME AUTOMATION SYSTEM

Figure 2: Proposed Home Automation System

NEWI North East Wales Institute of Higher Education

X-10

– Technique “Power Line Carrier” – Frame sent two times– Noise filter / Phase coupler– Up to 256 controlled devices

Figure 3: X-10 frame

NEWI North East Wales Institute of Higher Education

GSM

Figure 4: GSM connection

– AT / AT+ commands – Serial connection– SMS– MMS– Dials

NEWI North East Wales Institute of Higher Education

INTERNET PROTOCOL

Figure 5: Siemens UPnP

– Control Points – IP devices

IP cameras

– Web browsers– XML – Siemens UPnP Stack

Addressing Discovery (SSDP) Description (XML)

– Control (SOAP)– Eventing (GENA)– Presentation (HTML,WML)

Addressing

Discovery

Description

PresentationEventingControl

NEWI North East Wales Institute of Higher Education

INTERFACES & MIDDLEWARE

Middleware– Standard compatible– Link technologies (translation)– Robust

User interfaces (Local & Remote)– Must follow Heuristic Evaluation (Molich and Nielsen 1990) – High usability

Good visibility of system status Match between system and real world

– Error prevention (minimize error messages)– Aesthetic and minimalist– Help

NEWI North East Wales Institute of Higher Education

STATE DIAGRAMS

INTERNET ACCESS

ACTIVE REMOTE ACTION

PING SUCCESSFUL

LOGIN FAILURE

CONNECTIVITY TESTRESPONSES

PING IP

USE OF WEB INTERFACELOGIN()

LOGIN()LOGIN ERROR

ACTIVATE_SERVICE()

INITIAL ESTATE

ESTABLISH CONNECTION

SEND_PLC_COMMAND() / IP SERVICE

SERVER ACCESSED

BROWSER ACCESS

CONNECTIVITY FAILURE

CONTROLPOINT

DEVICE HOST

SERVICE DONE

NEW ESTATE

INTERFACE ERROR

Figure 6: Estate Diagrams

NEWI North East Wales Institute of Higher Education

GSM ACCESS

REMOTE ACTION STARTED

GSM MODEM ACTIVE

GSM TEST

CALL GSM MODEM

X10_COMMAND()

INITIALESTATE

RECEIVESMS

MIDDLEWARE

SMS_TRANSLATION ()

CONNECTIVITY FAILURE

ACTION NOT REALIZED

LOCAL ACTION

CHANGE_STATUS()

SEND_STATUS() // UPDATE

MOBILE

X10 DEVICE

ERROR

SEND_STATUS() / ERROR

NEWESTATE

RESPONSE

RESPONSE

SERIAL PORT ACCESS

X10_COMMAND()

Conclusion

The E-home is coming quickly

Standards are not completely established

Remote Control is necessary for certain purposes

Developing low-price systems will accelerate the

process of turning our homes intelligent

The price of the “intelligence” in a house in

comparison with its “body”, is insignificant

NEWI North East Wales Institute of Higher Education

Thanks!

Any question? – (Ask Slowly please)

NEWI North East Wales Institute of Higher Education