UNIVERSAL REMOTE CONTROL Lab Engineer: Dr. Ilana DavidSupervisor: Oleg Romanov Submitted by: Oleg Galter Elena Smirnov Software Laboratory Spring 2001

Project Goals Learning COM/DCOM object Learning WINDOWS CE for Pocket PC Learning Sockets (protocol TCP/IP) Using Multithreaded application Design and implementation of Universal Remote Control for Windows CE OS on Pocket PC computers

What is Universal Remote Control? Universal Remote Control (RC) may work with all possible home devices, such as TV, video, air conditioner, stereo system, home cinema.

Project Units Universal Remote Control on Pocket PC for Window CE Distributed Devices on Pocket PC for Window CE Relationship between the Units by Sockets

Main System Diagram Sockets Device Install VIDEO Device Interface Device Control COM TV-SET Conditioner Server Interface Remote Control COM RC

Project Development Steps: Attempt to create the Project, as it was defined in the beginning of the project, by DCOM protocol During the work it was proved as impossible to work with DCOM protocol for Pocket PC because of lack of local IP address implementation for Pocket PC

Main System Diagram Using DCOM Protocol DCOM Device Install VIDEO Device Interface Device Control COM TV-SET Conditioner Server Interface Remote Control COM RC

Advantages of DCOM vs. TCP/IP No need to remember an IP address of Server for repeated connection The Server may start devices by itself Increased speed of reaction to command (connection between RC and Device Control) Registered DCOM is available for each allowed users in the world

Project Development Steps: Decision of this problem is in using TCP/IP protocol for distributing communication between Pocket PC units It was created number of application: - Remote Control Unit -- Server Interface -- Remote Control Application - Device Unit -- Device Interface -- Device Control Application - Install Unit -- Device Install Application

Remote Control Unit – Class Description RemoteControl –CRemoteControlApp Class –CRemoteControlDlg Class IComRC * ptr Server –CComRC Interface GetDeviceSocket() IsDeviceInstall() DeleteItem() –CDevicesList Class

Remote Control Unit – Class Relationship Device Control RC UI RemoteControl DeviceProcessing RemoteControlApp COM_RC Interface Server Registry Write/Read Creating Thread Socket (TCP/IP) Creating Thread COM

Remote Control Unit Server stores information about installed devices. RC gets any information from the Server by sending requirements to the one. Server gets information about new device by Device Installation that uses the device driver. Number of Threads = Number of Devices + 2

Remote Control Unit By pushing on an any button: -- requirements sent to the Server about the installed device -- sent a receive command from user to Device Interface There is a possibility to run list of commands by RC from a file.

Device Control Unit – Class Description DeviceControl –CDeviceControlApp Class –CDeviceControlDlg Class –CConnect Class IDeviceCom * ptr Device –CDeviceCom Interface Init() Get_Driver() Get_Type() Button_Exec() –CDevicesDlg Class

Device Control Unit - Class Relationship Device UI DeviceCOM Interface Device Control Creating Thread Device Remote Control Socket (TCP/IP) COM Registry DeviceControl UI Connect Write/Read

Device Control Unit Device Control connects by Socket to the RC. Device Control is Client, RC is Server in terms of TCP/IP protocol. Device Control receives a command from RC and pass it into Device Interface We refer to devices as fabric products that may react only to remote control

Device Install Unit – Class Description DeviceInstall –CDeviceControlApp Class –CDeviceControlDlg Class

Device Install Unit - Class Relationship Registry DeviceInstallApp DevcieInstallDlg Write/Read Device Install RC Unit

Device Installation Unit Device is installed to the RC Pocket PC. For correct installation of the device it is required a proper driver file of relevant type. There is no need for repeated installation in case if the device of the defined type was installed before.

Exit/Close Units Rules In the event of exit/close of Remote Control Unit: - All working devices are closed - No need for repeated installation of devices on the Server In the event of exit/close of Device Control Unit: - This Device is removed from the list of working devices in the RC - No need for repeated installation of this type of device on the Server

References Books: –Dale Rogerson Inside COM Microsofts component Object Model –Douglas Boling Programming Microsoft Windows CE –Microsoft Course: Component Development Using the Active Template Library 3.0. –MSDN Help Links: – –