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Project Proposal
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Project Proposal
Line Follower Robot
Name of the Student Roll No.
: :
Sunil Shahu 08BECR049
Name of the Stu Student Roll No.
: :
Darsh rshan Solanki 08BECR051
Name of the Stu Student Roll No.
: :
Mandeep Chhabada 08BECR008
Name of the Student Roll No.
: :
Chintan Parmar 08BECR025
Branch
:
Electonics And Communication Engineering
Date
:
7/2/2011
Indus Institute of Technology and Engineering Rancharda, Via Thaltej Ahmedabad-382 115
Definition of Project A line follower is an autonomous bot that can follow a specific colored line painted on a surface of different contrast, such as black on white. Line follower robot is the microcontroller based movable automatic robot which will track the black line and follow it. The other surfaces will be white. This will detect the white surface at both the sides of line and move ahead.
Scope of Project, Deliverables At the end we will get a vehical which can automatically detect path and drive on it. We can mount any system on this vehical. The system works on light reflection principal. So if we try to run the system at night or say at no light condition then the system may not perform correctly. It may also not work well when the surface is not good reflective.Other outer light source may also cause error in the working of light sensors.
Design Specifications Specifications The making of line follower robot is divide dunder three heads: 1. Chassis Chassis of robot 2. Electronics Electronics/Hard /Hardware ware Designing Designing 3. Programmin Programming/Sof g/Software tware Designing Designing
Design Details Functional Block Diagram
Motor Logic
We will need a set of two motors that have same rpm (revolution per minute).
Circuit diagrams IR-Sensors
The Infra Red sensors are used to interact with the environment. The emitter sends a ray which is received by detector in the form of voltage and then amplified by amplifier since the signals are weak (more on this later). Below are the circuit diagrams of Infra-red LED emitter and receiver .
IR-Emitter
IR-Reciever
Op-Amplifier (LM324)
If the rays received by the IR- LED receiver are above a particular threshold then an amplified amplified signal is generated generated by the amplifier amplifier (LM324). (LM324). Note that the sensors sensors cannot directly send a signal to the microcontroller as the signal voltage generated by them is too low and even when sensors are on white surface signal generated by them will interpreted low by the microcontroller.
H-bridge (L293B)
The microcontroller sends a signal to the H-bride that acts as a switch. If the signal received by the H-bridge is high it will rotate the motor or else it won’t do so. Note that microcontroller only sends a signal to a switch which gives the voltage required by the motor to rotate. Here we are using L293B which can be used to control two motors.
Cost The expected cost for this project is about 1500 INR.
Schedule The project will be completed within 2 month from the date of start.
