X-10 Based Outdoor Light Automation System

For "X-10 based Outdoor Light Automation" system the powerline is used as a medium
of signal transmitting. There are two parts of the system: Receiver and Sender. Both
parts should be plugged in to the sockets anywhere in the house, and each of them has a
PIC16F877 to send, generate, receive signals and execute the appropriate instruction. It
is already being widely practiced and used in the North America where they use 110V
(60Hz), while the powerline standard in South East Asia is 240V (50Hz). The modular
methodology is used to develop the system. This paper describes the process of
developing "X-10 based Outdoor Light Automation" system using the 240V (60Hz)
powerline as a medium of signal transmission and 5bits of data will be tested to switch
on/off the device rather than 11bits that are used by existing X-10 communication
protocol. Fewer bits in a message means that the transmission will be faster, fewer
appliances will be controlled and less control functions would be used.