Competency Demonstration Report Solved

COMPETENCY
DEMONSTRATION REPORT
Career Episode 1
NAME

CE 1.1 Project Information
Name of the project: Designing a modern intelligent line follower robot with auto go
down detection feature
Location of the project: [PLEASE FILL]
Project Duration: [PLEASE FILL]
Organization: [PLEASE FILL]
Role and Designation during the time: Team Member
CE 1.2 Project Background
In the recent world, industries are using crane for placing parcels from one place to
another that lead to the possibilities that lifting machines might be damaged or broke while
lifting heavy weight materials. Considering these facts, I felt the need of this system for such
industries that is a robot, which could be used to take parcels from one place to another within
the industry. I have implemented various sensors such as IR transmitter and receiver, RF
transmitter and receiver. These components are being widely used for the wireless
communication and thus, these sensors are being used within the range of 433 MHz for the IR
led and IR transmissions of frequency 38 kHz. Based on the engineering language, I have
implemented various components for the effective and efficient working of the system.
CE 1.2.1 Characteristics of the project
I have implemented various components such as Siren, switches, RF reader and RF card,
Memory (24C04), RF receiver and RF transmitter, IR receiver and IR transmitter including VB

and Embedded C software. I have designed the system in such manner that the robots can be
operated from the control office through sending commands via PC. This signal will be
transmitted after encoding, through the RF receiver, and RF medium configured in the vehicle
and will receive and send the signals. The encrypted coding will be decoded by the micro-
controller in manner to respond to the command send by that signal. Using 4-bit coding the
software will respond to the exact command provided by the operator or the user commanding
through PC.
CE 1.2.2 Objectives developed for the project
I have developed this project in manner to eliminate the extra efforts made while
transporting the parcels from one place to another through crane. Robot that can be operated with
the commands could be helpful in assuring these objectives. The objectives that were set before
and during the execution of the project includes:
To replace manual operating cranes with robots
To increase the safety and proper displacement of the parcels
Eliminate extra efforts within the industry
CE 1.2.3 My area of work
I had taken responsibilities for the implementation of RF into the system. I had chosen
MICRF102 transmitter IC and MICRF002 receiver IC. I had chosen the advanced versions of the
IC in manner to improve the efficiency, widen the range of the remote control, and allow the
devices to receive and send signals from long distance. I have also implemented the latest
QwikRadio™ technology of the Micrel, which is a true “data-in, antenna-out” monolithic device.
This implementation reduced the cost of the project and helps us in eliminating the manual

tuning, and made the project much reliable and low cost wireless application. The receiver is an
advanced version of the MICRF011 and MICRF001, which is a single chip On-Off Keyed
(OOK) receiver IC that is helpful in remote wireless applications employing the same technology
used in the transmitter.
CE 1.2.4 Project Group
CE 1.2.5 My responsibilities throughout the project
It was my responsibility to collect the electronic components according to the ratings and
those are suitable as per the circuit and sensors about to be installed within the system. I had
selected Micro Controller AT89S52 8-bit CMOS micro controller that can be operated at low
power and produce high performance along with the 8K bytes of in-system programmable flash
memory. It was my responsibility that the voltage is converted into 5V for which I had used an

AC/DC adapter of 12V to 5V/12V DC. I was responsible for cross checking each electrical ad
electronic component that whether the circuit is closed or not, which means the current is
flowing through each component or not.
CE 1.3 Distinctive Activity
CE 1.3.1 Comprehending the theory of the project
The project was designed to transfer the materials within the warehouses or any other
storehouses. I had implemented senor into the system in manner to make the robot vehicle to find
its path automatically. The location is detected by the RF card number that is to be loaded into
the memory first for which two switches has been allocated 1 and 2 for the respective storage
corresponds. Switch 3 is allocated for the on and off switching and after turning the robot on the
direction can be controlled through the microcontroller and sensors used in the remote. These
signals will be sent to the robot and dc motor connected with robot will allow the vehicle to
move. The RF and IR sensors will help in finding the obstacles in the path through sending and
receiving signal. I have designed the circuit in manner that if the obstacle is found in the path, IR
sensor will not be receiving signal and thus it will send signal to the robot and thus robot will
reach to the obstacle and check whether the obstacle is removed or not. Even after that if the
obstacle is not removed then after five minutes the signal will be sent to the control room and
even after that obstacle is not removed the siren will be turned on. Robots can be controlled by
the control office through the RF receiver and signal transmitter and thus the vehicle will receive
the signal and transmit it to the microcontroller. The microcontroller will be responsible for
decoding the signal and perform the commanded action.

Figure 1: Robot Vehicle
CE 1.3.2 Engineering knowledge and skills applied in the project
I had applied the engineering skills gathered during my graduation and implemented
those skills within the project. Converting the output voltage was not a very big accomplishment
for anyone but embedding switching and coding them for controlling the device was one of the
biggest obstacles while delivering the project. I had Specified the codes for the exact output was
another challenge that was accomplished in the project because of my skills.
CE 1.3.3 Accomplishment and task performed
Firstly, components were collected and there after a model (block diagram), has been
drawn as per the theory that I had learnt in my graduation. The very first step was to step down
the voltage for which an adapter is used and thereafter embedding the switching controls within

the microcontroller. Thereafter LCD and sensors were needed to control the device for which I
had implemented sensors to the vehicle and the control room.
CE 1.3.4 Identified issues and their solutions
1.3.4.1 Issues
Embedding the decoding and coding within the microcontroller was one of the issues for
which assistance was needed and the Sensor’s range were not very large.
1.3.4.2 Solutions
The project supervisor on embedding the codes in the microcontroller provided
assistance. I had used MICRF002 IC in the place of MICRF011 and MICRF001 ICs.
CE 1.3.5 Plan to produce creative and innovative work
I had done research on various research papers that presents somewhat the same model to
accomplish the robot vehicle. I boosted the ides through implementing sensors to detect the
obstacles and after detecting the obstacle, the command was sub-divided into three groups of
intervals 1 minute, and 5 minutes. Implementing sensor was our innovative thought in manner to
be informed if there is any obstacle that cannot be removed by the robot.
CE 1.3.6 Collaborative work
This was not an individual project rather it was a team work in which every individual
was assigned different jobs. Other than my area of work rest of the team-members were
responsible for embedding software within the micro-controller and assign the coding for the
switches. I had selected the components but those were installed and make it working and
contribute themselves to the success of the project. The team leader played his role in motivating

everyone and our project supervisor also supported with the projected and promote us to
complete the project successfully.
CE 1.4 Project Review
CE 1.4.1 Project Overview
I have designed the project in manner to enhance the security in the warehouses and
storehouses through designing a robot vehicle that is capable of sensing the path and the
obstacles and transfer the goods from one place to another. I had implemented Sensors, RF, IR,
DC motor, metal sensors, Memory, siren, switches, and motor driver are the components within
the system. VB and embedded C have also been implemented within the microcontrollers in
manner to code and decode the signals to deliver the respective outputs.
CE 1.4.2 My contribution to work
I had contributed myself into the implementation of IR and RF signal receiver and
transmitter. This was one of the major responsibilities other than the first one that, I was assigned
to crosscheck the connections and make sure that, microcontrollers and sensors are receiving the
signals as per the theory. I was responsible for gathering equipments and components for the
project and I had ensured that actual component is available along with the lowest budget that
could be kept while delivering the project.