Development of a system to Control Electrical Lights and Fans using TV Remote

COMPETENCY
DEMONSTRATION REPORT
Career Episode 3

CE 3.1 Project Information
Name of the project: Development of a system to Control Electrical Lights and Fans
using TV Remote
Location of the project: [PLEASE FILL]
Project Duration: [PLEASE FILL]
Organization: [PLEASE FILL]
Role and Designation during the time: Team Member
CE 3.2 Project Background
CE 3.2.1 Characteristics of the project
Automation using the electronics have become the trend and I was looking forward for
the development of a product that could be utilized in the households for the remote management
of the electric appliances. I suggested the entire team for the delivery of a project that could
allow the control of the home appliances using the TV remote as it is widely available. I
developed the system that follows the linear profile through providing the regulation against the
input power supply. It could be used for regulating the power supply considering the variations
in the frequency of the power supply and manage the products without any additional
considerations. I controlled and used the RMS voltage adjustments for controlling the speed or
intensity of the load and controlled them using the triac circuitry through manipulating the firing
angle. I also calculated the voltage supply, monitored the identified change, and compensated
through changing the instance of firing the triac trigger pulse accordingly.

CE 3.2.2 Objectives developed for the project
I was playing the role of the lead team member in the project and hence the prior activity
was to set a path that is smooth and reliable for the rest of the team members in manner to make
sure that the delivery could be managed in an efficient and effective manner. I developed the
following set of the objectives:
 To develop a system that can control the speed or intensity of the electric fans and
lights using the general TV remote.
 To build and design a controller that is capable of controlling the fans and lights
using the serial port interface.
 To develop a sophisticated automated and remote system for controlling the
household appliances.
 To manage the team and establish an efficient and effective communication
between the different team members.
 To manage the project of the budget low as minimum as possible and make sure
that the product could be made easily and widely available for the common users.
CE 3.2.3 My area of work
I had to develop a smooth path and allow the different sectors of work for every
individuals involved in the project. I managed to divide the project into eight major components
including power supply, RD232 driver, IR receiver circuit, zero crossing detector, intensity
regulation in relation to the main voltage variation, IR decoder, Triac firing pulse generation and
TRIAC. I allotted the rest of the team members for the first five sectors and every individual