This document proposes a system to control an unmanned robot using dual tone multi-frequency (DTMF) signaling from a mobile phone. The existing systems use separate wireless devices to control robots, which have limitations like limited range and control. The proposed system uses a PIC microcontroller and DTMF decoder to receive DTMF tones from a mobile phone and control a robot mechanism through relay drivers. This allows remote control of a robot from a standard mobile phone, reducing complexity while improving accuracy and range over existing wireless solutions.

1. DTMF BASED UNMANNED ROBOT
CONTROL
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STUDENTS NAME
EG Technologies

2. ABSTRACT:
• The Embedded Technology is now in its prime and the
wealth of Knowledge available is mind-blowing.
• Embedded System is a combination of hardware and
software.
• Embedded technology plays a major role in integrating the
various functions associated with it.
• This needs to tie up the various sources of the Department in
a closed loop system.
• This proposal greatly reduces the manpower, saves time and
operates efficiently without human interference.
• This project puts forth the first step in achieving the desired
target.
• With the advent in technology, the existing systems are
developed to have in built intelligence.
2EG Technologies

3. Existing System:
• Certain methods to control the robot by using a
separate device especially for the robot.
• Wireless controlled vehicles had been
extensively used in a lot of areas like unmanned
rescue missions, military usage for unmanned
combat and many others
3EG Technologies

4. Drawbacks of existing system:
• Working range, and limited control
• The wireless unmanned robots typically make
use of RF circuits for maneuver and control.
4EG Technologies

5. Proposed System
• Dual tone multi frequency (DTMF) signaling
is used for telecommunication signaling over
analog telephone lines in the voice frequency
band between telephone handsets and other
communication devices and the switching
center
5EG Technologies

6. Block Diagram:
• Control section:
• Monitoring Section:
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MOBILE
POWER
SUPPLY
DTMF
DECODER
PIC
MICRO
CONTROLLER RELAY
Driver
RELAY
Driver
Mechanism
EG Technologies

7. Hardware requirement:
• Boat mechanism
• PICmicrocontroller
• DTMF Decoder
• Driver Circuit
• LCD
• Mobile
Software requirement:
• HITECH C Compiler
• MPLAB IDE
7EG Technologies

8. Advantages of proposed system:
• Essentially RF circuits suffer from a lot of
drawbacks such as limited frequency range
• DTMF function of a cell phone to control the
robotic vehicle.
• appreciable degree of accuracy of the system
and friendliness
• reduction of circuit complexity and of man
power
8EG Technologies

9. Application
• Industry
• Switching center
• Tracking device
9EG Technologies

10. 10EG Technologies

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