To capture any image of the object and send it to the PC using wireless audio and Video
communication for any security systems.
Now a day’s mobile robots are vastly used in many industries for performing different
activities. Controlling a robot is generally done using a remote control which can control the
robot to a fixed distance.
This project aims at designing control system for a robot such that the mobile robot is
controlled using mobile and wireless RF communication. In this project the controlling is done
depending on the feed back provided by the IR sensor which is the part of object detection
The project contains different modules such as
Object detection and angle determination in the path using IR sensor.
SMS protocol (F-Bus) development.
Design of RF circuits for data transfer and camera interface.
In the object detection module when the at89c2051 microcontroller is powered up the stepper
motors starts rotating at 180 degree arc. The IR sensor is mounted on stepper motor. When an
object is detected by the IR sensor the microcontroller stops the robot and stepper motor.
The video camera mounted on the stepper motor starts transmitting the object picture
continuously. Here the IR sensor consists of IR transmitter and receiver .the IR transmitter is a
led and receiver is Tsop receiver. Here the frequency used is 38 kHz. The angle detected is sent
to PIC where it is displayed on the LCD display.
In the SMS protocol development module F-Bus is High-speed full-duplex bus. It uses one
pin for transmitting data and one pin for receiving data plus the ground pin. Very much like a
standard serial port. It is fast 115,200bps, 8 data bits, no parity, and one stop bit. For F-Bus the
data terminal ready (DTR) pin must be set and the request to send (RTS) pin cleared. This F-Bus
is used to connect mobile to PIC microcontroller. The commands for controlling the robot are
sent by mobile through PIC using RF communication.
In the RF circuit design two pairs of RF transmitter and receiver are used. One set is used for
communication between at89c2051 microcontroller and PIC microcontroller. The other pair is
used for communication between PIC and mobile robot for controlling activities
To find the path and control the motion of mobile robot in the path using IR sensor feed back
mechanism. The controlling is done by using mobile.
This system is divided into different modules
1) Object detection and angle determination in the path using IR sensor.
2) SMS protocol (F-Bus) development.
3) Design of RF circuits for data transfer and camera interface.
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