COGAIN 2009 Petr Novák, Olga Štepánková Home and environment control

Main goals  Cheap (low-cost) system, composed from small cheap devices / parts  Easy to add new device / component, connected throw USB, BlueTooth, LAN,..  Control almost already existing home devices like TV set, Radio, Lights, …  Possible to connect to any smart components like Air Condition, door system, …  Common application running under standard operation system like MS Windows  Devices are connected using standard interfaces like USB, LAB, BlueTooth, ZigBee, RS232, …

Control system structure  Three types of input devices (simple buttons, directions, absolute position)  Stand-alone application running on home PC  Special output devices (IR TV controller, …) or using smart devices throw any type connection (door system, …) Input devicesControl systemOutput devices

Types of input devices  Some type are suitable for some user  Simple buttons (one, two, three, …) Two buttons First – select action (next -> next - > next -> …) Second – hit selected action Slow but sufficient  Direction (left, right, up, down, …) Direction – select action (like kyes) Hit action – separate button, sound, dwell time, … I4Control – look -> direction, close eye -> hit action  Absolute position (joystick, …) Directly control mouse pointer Hit action – close eye, dwell time, …

Control application  Created using.NET framework (MS Windows)  Stand-alone application, no dedicated PC require, running on background  Each device = dialog (for user) + driver (for device)  Possibility to create groups of devices – some smartness in system  Groups “temperature control” Devices – windows, Air Condition, temperature sensors, … Temperature low -> event -> devices close (windows, …) Group of devicesControl system Temperature sensor Driver Devices

Output device structure  User dialog adjustable, configuration file (button’s position, color, names, …)  High level driver Translate command from dialog to device format Command – open window, switch TV on  Low level driver Send data to specific device USB (switch TV on), ZigBee (window, lamp), LAN (door)  Device can be connected using any type of interfaces  Easy to create and configure system Device driver (commands, state, …) communication channel (USB, BlueTooth, …) Configuration (file)

Simple output device  Infra-red TV controller (for almost of TV sets)  Simulates common remote IR controller  Can store and then send command for TV set, Radio, … Learning command from original TV IR controller Control TV set from output device Storing IR command into application setup Device for receiving / sending IR command(s) USB port

Simple door system  Door bell + door camera (WEB camera, IP camera, …)  Door bell active -> show dialog with picture  Open door or close dialog Camera and door bell (we use simple WEB camera and button with USB interface) Dialog with person in front of the door Connection may be wire, BloueTooth, ZigBee, LAN … Door lock - open

Others possibilities  Open / close window – using special actuators  On / off light – e.g. using 433MHz wireless system  Send / receive SMS by cell-phone – BlueTooth connection between cell-phone and PC  Accessible for mobile users Input device e.g. on wheelchair Using BlueTooth or ZigBee -> home PC Person on wheelchair with input device Wireless connection to PC (BloeTooth, ZigBee) Computer application