07-05-2012, 12:12 PM
ROBOTIC ARM BASED VEHICLE WITH FOUR WHEEL DRIVE FOR SPECIFIC OPERATION WITH VARIABLE SPEED CONTROL
ETC031 - Robotic arm mounted on a four wheel belt drive vehicle USING.doc (Size: 81 KB / Downloads: 58)
DESCRIPTION : This project consists of a vehicle with variable speed control and a robotic arm which mounted on this vehicle. It can be used for various application.
The robotic arm movements and vehicle operation are controlled by the user using a zigbee wireless module. The vehicle movements like forward, reverse , left turn right turn are controlled by the user, and the robotic arm movement is also controlled by the user.
WORKING It consists of zigbee wireless module to control vehicle and robotic arm. Here the robotic arm is mounted on a four wheel belt drive vehicle. The robotic arm consists of reduced gear motors which are controlled through using L 298 drivers ic. and vehicle movement with variable speed control through pot and LM 18200 motor driver ic. There will be two main parts in this project one is the transmitting part and the other one is receiving part. Each part consists of a 8051 microcontroller and a zigbee wireless module interfaced using serial communication pin RX and TX. In transmitting part resistor pots are connected to ADC which converts the analog voltage to its corresponding digital value and it is processed in the program by the microcontroller and transmitted through zigbee, the movements of the robotic arm and the vehicle is controlled, and at the receiving end the transmitted data is received through zigbee and processed by the microcontroller and performs the necessary operation using the motor drivers by PWM.
XBee multipoint RF modules are ideal for applications requiring low latency and predictable communication timing. Providing quick, robust communication in point-to-point, peer-to-peer, and multipoint/star configurations, XBee multipoint products enable robust end-point connectivity with ease. Whether deployed as pure cable replacement for simple serial communication, or as part of a more complex hub-and-spoke network of sensors, XBee multipoint RF modules maximize wireless performance and ease of development.
MAIN COMPONENTS USED :
5 V DC Power Supply
ATMEL AT89S52 Microcontroller
Buzzer – Frequency ( 1 to 18 KHz, 5V – 12V DC )
LCD 16*2 Alpha Numeric
RS 232 Converter – MAX 232
zigbee Tran receiver.
Reduced gear motors.
drivers L298, LMD 18200.