Title: Controlling Robotic Vehicle With IR Remote
1IR Controlled Robotic Vehicle
2IR Controlled Robotic Vehicle
Introduction
- To control a Robotic vehicle using a standard TV
remote. IR sensor is interfaced to the control
unit on the robot for sensing the IR signals
transmitted by the remote. This data is conveyed
to the control unit which moves the robot as
desired. An 8051 series microcontroller is used
in this project as control device.
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3IR Controlled Robotic Vehicle
Block Diagram
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4IR Controlled Robotic Vehicle
Hardware Requirements
- 8051 series Microcontroller
- IR Sensors
- DC motors
- Motor Driver IC
- Crystal
- Resistors
- Capacitors
- Voltage Regulator
- Battery
- Robot Body
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5IR Controlled Robotic Vehicle
Software Requirements
- Keil compiler
- Language Embedded C or Assembly
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6IR Controlled Robotic Vehicle
Microcontroller
- It is a smaller computer
- Has on-chip RAM, ROM, I/O ports...
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7IR Controlled Robotic Vehicle
Internal Structure of A Micro Controller- AT
89S52/51
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8IR Controlled Robotic Vehicle
Microcontroller Pin Description
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9IR Controlled Robotic Vehicle
TSOP 1738
- Photo detector and preamplifier in one package
- Internal filter for PCM frequency
- Improved shielding against electrical field
disturbance - TTL and CMOS compatibility
- Output active low
- Low power consumption
- High immunity against ambient light
- Continuous data transmission possible (up to 2400
bps) - Suitable burst length .10 cycles/burst
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10IR Controlled Robotic Vehicle
Description TSOP 1738
- The TSOP17 series are miniaturized receivers
for infrared remote control systems. - PIN diode and preamplifier are assembled on lead
frame, the epoxy package is designed as IR
filter. - The demodulated output signal can directly be
decoded by a microcontroller. - TSOP1738 is the standard IR remote control
receiver series, supporting all major
transmission codes.
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11IR Controlled Robotic Vehicle
DC- MOTOR
- A DC motor is an electric motor that runs on
direct current (DC) electricity. In any electric
motor, operation is based on simple
electromagnetism. - A simple 2-pole DC electric motor (here red
represents a magnet or winding with a "North"
polarization, while green represents a magnet or
winding with a "South" polarization). - Every DC motor has six basic parts -- axle, rotor
(a.k.a., armature), stator, commutator, field
magnet(s), and brushes.
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12IR Controlled Robotic Vehicle
Working Principle
- Transmitting end uses a TV remote through which
IR commands are transmitted. - At the receiver end, these commands are used for
controlling the robot in all directions. - Such as forward, backward and left or right etc.
- At the receiving end the movement is achieved by
two motors that are interfaced to the
microcontroller.
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13IR Controlled Robotic Vehicle
Working Principle
- RC5 based coded data sent from the TV remote is
received by an IR receiver interfaced to the
microcontroller. - The program on the microcontroller refers to the
RC5 code to generate respective output. - Based on the input data to operate the motors
through a motor driver IC. - The motors are interfaced to the control unit
through motor driver IC.
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14IR Controlled Robotic Vehicle
Applications
- Remote control robotic vehicles have various
scientific uses including hazardous environments. - Can be used by Military and Law Enforcement
agencies. - Can be used for Search and Rescue operations.
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15IR Controlled Robotic Vehicle
Advantage
- Low cost.
- Simple TV remote controls can be used as
controllers.
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16IR Controlled Robotic Vehicle
Disadvantage
- Limited range of control.
- Needs to be line of sight.
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17IR Controlled Robotic Vehicle
Future Enhancement
- Further the project can be enhanced by DTMF
technology. With this technology we can control
the robotic vehicle by a cell phone. This
technology has an advantage over long
communication range as compared to line of sight
communication in IR technology.
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18IR Controlled Robotic Vehicle
Conclusion
- This project is used to control robotic vehicle
by using IR remote. IR sensor is interfaced with
microcontroller on the robot for sensing signals
from remote. Infrared control requires line of
sight in order to function the receiver must be
able to see the transmitter at all times in
order to receive data. Infrared remote controls
(such as universal remote controls for
televisions) are used to send commands to an
infrared receiver connected to a microcontroller
which then interprets these signals and controls
the robots actions.
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