Autonomous Security Guard Robot
LIJOOSH C (No. 28)
RICHARD O (No. 50)
Presented By
Guided By
RIYAZ K KAP ECE
Aim
The aim of this project is to build a working
prototype of a sentry / patrol robot.
The robot is capable of patrolling an area
without human interaction while providing
feedback as to the state of its surroundings.
It monitor and report the status of his guarding
area, patrol inside a designated area and report
intruders.
Motivation
Alternative to a human security personnel.
Robots can do tasks faster and safer.
Reduce security breaches prevalent in human
security systems.
Reduce security expenses in the long run.
Project Objectives
Easy to Use Autonomous. Simple and intuitive. Able to work in the dark. Battery in the robot is easy to recharge.
Safe Protect users from shock. Circuits enclosed within a sealed case. Battery is protected from shorts. Environmentally safe.
Operating Environment
Operates mainly in an indoor environment.
Navigates on a flat horizontal surface, which limits
its outdoor usage.
Designed to handle obstacles based on proximity.
Operates without any human present to issue
instructions to it.
Sonar sensor
XNOR Gate
PIR Sensors/Mic
Buzzer
H-BridgeMicrocontroller
Power Supply
Gear Motors
Block Diagram
Circuit diagram
Work Done
Generated and simulated the circuit using Proteus Professional.
Wired the circuit and checked. Designed PCB layout using PCB Artist. Fabricated PCB and created the hardware part. Designed and made the mechanical part. Programmed the microcontroller. Integrated all the parts.
Result
Most aspects of the robot functioned as intended. Mechanical performance of the system was as
expected. The robot was able to navigate on its own but not
all obstacles was avoided. Susceptible to false alarms intermittently. Working of PIR was irregular.
Final Product
Conclusion
Objectives of the project not met in its entirety. Obstacle avoidance was highly dependent on the
surface and texture of the obstacle. Microphone inputs were very sensitive to
background noise. Presence of sunlight interferes with the working
of the PIR sensor making it ineffective during the day.
Future Works
Obstacle detection by image processing techniques.
Continuous monitoring. Connection to a central control station. Fire and water leakage sensors. Use of pan-tilt zoom camera or IP camera.
Thanks…
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