Showing posts with label Robotic Vehicle. Show all posts

DTMF Based Robotic Vehicle

Previously we have robotic vehicles use RF circuits, which have the drawbacks of limited working range, limited control and limited frequency range. To solve this problem we provides DTMF based robotic vehicle system It provides the advantages of robotic control, intrusion free controllers and also robust control, minimal interference and a large working range.

This system involves four different phases: perception, action, processing and detection. In the perception stage if the mobile attached to the vehicle receives a call, then the pressing key on the mobile decodes the generated DTMF tone. Then, the decoder chip receives the audio signal from the mobile, and then converts the DTMF tone into a binary code, which is then fed to the microcontroller.

Block diagram:

The major building blocks are microcontroller, mobile, DTMF Decoder and DC-Motor-driver circuit. The entire system works and is activated by the mobile that makes a call to the mobile attached to the robotic vehicle. If any button is pressed, then DTMF (dual tone multi frequency) receives the input signal from cell phone and decode it. Then generates 4-bit-digital output of the 8051 microcontroller.

Microcontroller depends upon the code which is generated by the DTMF decoder to move the rover right or left and forward or backward by rotating both DC motors. The DC motor driver receives activating signals from the microcontroller in terms of low or high logic, then it amplifies and rotates two motors in both directions. The output of the microcontroller is not enough to drive the DC motors, so current drivers are necessary for motor rotation.

Hardware requirements:

AT89c51 Microcontroller
Mobile Phone
DTMF Decoder IC MT8870
DC Motor
Power Supply

Software Specifications:

· MC Programming Language: Embedded C
· Keil version IDE
· Proteus For Circuit & PCB Designs

Download Abstract of DTMF Controlled Robotic Vehicle Project

Hand Motion Gesture Based Robotic Vehicle

Hand Motion Gesture Based Robotic Vehicle 8051 Based Microcontroller

Hand Gesture Based Robotic Vehicle System

Robots are playing an important role in automation across all the sectors like construction, military, medical, manufacturing .the way of interaction between human and robot has been developing using various technologies but controlling the robot with a remote or a switch is quite complicated.

Here we are introducing hand gesture based robotic vehicle system .in this system the movement of the robot is controlled with hand gestures and there is no need to have any physical contact with robot and it is divided into two parts, transmitter and receiver where the data from the hand gestures is transmitted to the robot over RF link. The Decoder will convert the data and it is given to the motor driver IC. Based on the data, the movement of the motors.

Block diagram:

This system includes aRf receiver circuit which will be mounted on the top with 8051 microcontroller and Driver IC to operate the motors.The commands that are received by the IC on the circuit and this data is captured by the microcontroller, which then transmits a corresponding data to the Encoder. The parallel data received by the encoder is converted into serial data and this serial data is transmitted by the RF Transmitter which forwards the command to the RF receiver..

At the receiver section, the RF Receiver receives the serial data and transmits it to the Decoder IC. The Decoder will convert the serial data to parallel data and this parallel data is given to the motor driver IC. And makes the vehicle move in the respective directions that is left, right, front and backwards is controlled in accordance with tilting the hand in the respective directions.

Hardware requirements:

· 8051 microcontroller

· RF transmitter

· RFreceiver

· Voltage regulator

· Hand gloves

· Power supply

· Motor driver ic

· motor

Software requirements:

· MC programming language: Embedded C

· Keil version IDE

· Proteus For Circuit & PCB Design

Download Abstract Block Diagram Hand Motion Gesture Based Robotic Vehicle

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