PRESENTED BY:ANISH M. GEORGEJEEBU JACOB THOMASJERIN VARGHESETIJO ISAC

GUIDED BY:JYOTHISH CHANDRAN G

Real time measurement of the position of objects round the globe has had great impact on our imagination.

Design of position finding circuit with reasonable accuracy and less complexity.

Makes use of narrow infrared rays to build a less costly tracking system.*

Time has changed, and the things are still changing. From the time when ancient sailors used compass for navigation, we have reached an era where there is ultra modern devices like GPS for precision tracking and navigation.

A tracking system can help you to keep track of an object, the location they are currently situated, whether they are stopped or in motion, the speed and the distance travelled.

Our Project aims at designing and implementing an IR based Tracking System.

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This system consists of a beacon placed on the object to be tracked which continuously emits IR signals in all directions.

Signals coming from the beacon are detected by two IR receivers mounted on two stepper motors which rotate independently.

The direction to which each receiver points, allows the controller to determine the position of the object.

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This system can be mainly classified into four parts

> Transmitter> Receiver/Sensor> Controller> Decoder&Display

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Six IR LEDs are connected at an angle of 300 apart from each other so that it covers 1800 coverage area.CD 4047 IC is used for generating 38khz IR signal.

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CD 4047 IC is a CMOS, low power monostable or astable multivibrator. *

Receiver circuit consists of two IR receivers(TSOP 1738) mounted on top of two unipolar stepper motors.

Once the IR signal is received by both the receivers, the motors stop and the position of the motor is calculated by the controller.

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Controller controls the rotation of both the stepper motors.It provides with both clockwise and anticlockwise motion to both the stepper motors.It leaves the motors back to its initial condition, if both the stepper motors fail to sense the object to be tracked.After a fixed time interval, it signals the receiving system to start the tracking process again.It provides input to the decoder section through bidirectional I/O ports.

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The port 2 of the controller is provided as input to both the 4 to 16 decoders.The decoded output lines are connected to the display unit.The display unit consists of an array of LEDs connected by both the decoders.*

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DETECTEDOUT OF RANGERX1RX2 *

Used in Logistics in material production system for finding an estimated position of the material under scan.

Used for yielding the binary information, for automated control systems in manufacturing processes.

Used for sensing motion of an object under scan.

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ZONE A:ZONE B:ZONE C:

Step 1: StartStep 2: Enable first hardware InterruptStep 3: Give priority to second hardware interruptStep 4: Make the counts of both the stepper motors to be zeroStep 5: Go to step7Step 6: If at least once the object has been sensed, go to step1Step 7: Make a delayStep 8: Go to step1Step 9: Make anticlockwise step for RX1 till count=50Step 10: Make clockwise step for RX1 till count=0Step 11: Go to step4*

ISR for Hardware Interrupt 1Step 1: Enable the second hardware InterruptStep 2: Make Clockwise step for RX2 till count=50Step 3: Make Anticlockwise step for RX2 till count=0Step 4: Return from InterruptISR for Hardware Interrupt 2Step 1: Scale down the count by a factor of 1/5Step 2: Transfer the resultant count values to the port 2Step 3: Return from the interruptStep 4: Stop*

Limited range of IR circuit.

Implementing TSOP receivers on top of the stepper motor.

Tracking of moving objects.*

At reasonably good accuracy, our project, Infrared Tracking System proves to be an efficient tracking device for stationary and slow moving objects. It provides sufficient workability not only to the manufacturing process, but can also be used for tracking an object in general.

Apart from the binary information used for the control of automation process in the manufacturing unit, the display unit provides a user interface for a common man to know exactly where the object is at any instance of time in real time.

Thus our venture to implement a better tracking system flexible enough to be used for general purpose was completed successfully.

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*THANK YOU

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