Controlling Robotic Vehicle With IR Remote - PowerPoint PPT Presentation

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Title:

Controlling Robotic Vehicle With IR Remote

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This project is used to control robotic vehicle movement by using IR remote. IR sensor is interfaced with microcontroller on the robot for sensing signals from remote. The remote of TV is act as the transmitter who can send the IR signals and then these signals are received by the receiver which is fixed on the robotic vehicle. – PowerPoint PPT presentation

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Title: Controlling Robotic Vehicle With IR Remote


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IR Controlled Robotic Vehicle
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IR 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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IR Controlled Robotic Vehicle
Block Diagram
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IR 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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IR Controlled Robotic Vehicle
Software Requirements
  • Keil compiler
  • Language Embedded C or Assembly

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IR Controlled Robotic Vehicle
Microcontroller
  • It is a smaller computer
  • Has on-chip RAM, ROM, I/O ports...

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IR Controlled Robotic Vehicle
Internal Structure of A Micro Controller- AT
89S52/51
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IR Controlled Robotic Vehicle
Microcontroller Pin Description
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IR 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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IR 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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IR 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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IR 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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IR 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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IR 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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IR Controlled Robotic Vehicle
Advantage
  • Low cost.
  • Simple TV remote controls can be used as
    controllers.

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IR Controlled Robotic Vehicle
Disadvantage
  • Limited range of control.
  • Needs to be line of sight.

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IR 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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IR 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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