15-09-2014, 11:11 AM
DTMF BASED CELL PHONE OPERATED LAND ROVER
[attachment=67981]
ABSTRACT
You may have seen so many land rover projects like moon-walker and robo-vehicle. Most probably they are remote controlled (either IR or RF) or they may be automatic guided vehicles (AGV). This device is also remote controlled land rover but as a remote control one can use his cell phone that means he can move the land rover by sending different commands from his cell phone, not only that, he can control it from anywhere in the world (of course where GSM / CDMA network is available). Also this technology does not require the vehicle to be limited by the length of the cable or in direct line of sight with controller (as with infrared set up) and also well known BLUETOOTH is still expensive and short range to be commercially viable. We did a massive field work before starting this project and we found that this device provides a nice platform to be used in the field of surveillance, scientific research, and of course in search and rescue operation. Our device works with the help of some basic components like microcontroller (AT89S52), a DTMF decoder (which decodes dial tones received from the cell phone) and dc power supply. This device would have also worked with GPS technology but with the help of DTMF technology the cost has been cut down drastically.
INTRODUCTION
A robot is a mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control. In practice a robot is usually an electro-mechanical machine that is guided by computer and electronic programming. Robots can be autonomous, semi-autonomous or remotely controlled. Robots range from humanoids such as ASIMO and TOPIO to Nano robots, Swarm robots, industrial robots, mobile and servicing robots. By mimicking a lifelike appearance or automating movementsa robot may convey a sense that it has intent or agency of its own. The branch of technology that deals with robots is robotics. Robot is fast gaining popularity in industries for a wide variety of uses
General-purpose autonomous robots
General-purpose autonomous robots can perform a variety of functions independently. General-purpose autonomous robots typically can navigate independently in known spaces, handle their own re-charging needs, interface with electronic doors and elevators and perform other basic tasks. Like computers, general-purpose robots can link with networks, software and accessories that increase their usefulness. They may recognize people or objects, talk, provide companionship, monitor environmental quality, respond to alarms, pick up supplies and perform other useful tasks. General-purpose robots may perform a variety of functions simultaneously or they may take on different roles at different times of day. Some such robots try to mimic human beings and may even resemble people in appearance; this type of robot is called a humanoid robot. Humanoid robots are still in a very limited stage, as no humanoid robot, can, as of yet, actually navigate around a room that it has never been in. Thus humanoid robots are really quite limited, despite their intelligent behaviors in their well-known environments.
Dirty, dangerous, dull or inaccessible tasks
There are many jobs which humans would rather leave to robots. The job may be boring, such as domestic cleaning, or dangerous, such as exploring inside a volcano. Other jobs are physically inaccessible, such as exploring another planet, cleaning the inside of a long pipe, or performing laparoscopic surgery.
ORGANIZATION OF REPORT
The first chapter of the report deals about robot importance, its popularity in using worldwide.
In second chapter we have discussed about the block diagram of our project and through this we have tried to elaborate the working of our project by explaining the functions of different blocks. we have also explained DTMF technique with the datasheet attached at the end of the project. The chapter ends by estimating the cost of project and explaining about the advantages of the project.
The third chapter deals totally with the hardware description of the project. In these components of the power supply has been explained with complete circuit diagram. The microcontroller (ATmega16) which we have used in project has been completely described with labeled circuit diagram.
DTMF decoder (cm8870) which is used in decoding the multiple dial tone frequency used by mobile phone is explained properly with circuit diagram.
At the end of this chapter rectifier circuit has been explained which is used to convert Ac voltage to Dc one.
In fourth chapter we have dealt with software description of our project. In this we have explained the program which is used to control the microcontroller. For explaining the program we have taken help of the flow chart which explains the entire process step by step. The procedure to write and execute the program has been explained briefly.
In fifth and final chapter result and conclusion has been given and also bibliography has been given. In this chapter one can find the name of various books and url addresses from where the idea of doing this project has generated.
BLOCK DIAGRAM OF CELL PHONE OPERATED LAND ROVER
WORKING OF THE PROJECT
The method of project operation is given below.
Makes call to the mobile phone (as receiver) attached to the robot. Now after answering the call, and in the course of the call, if any button is pressed control corresponding to the button pressed is heard at the other end of the call. This tone is called dual tone multi frequency tome (DTMF) robot receives this DTMF tone
IC VOLTAGE REGULATORS:
Voltage regulators comprise a class of widely used ICs. Regulator IC units contain the circuitry for reference source, comparator amplifier, control device, and overload protection all in a single IC. Although
DESCRIPTION
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pin out. The on chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.
DESCRIPTION
The L7800 series of three-terminal positive regulators is available in TO-220, TO-220FP,TO-3 and D2PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation.
Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents.
[attachment=67981]
ABSTRACT
You may have seen so many land rover projects like moon-walker and robo-vehicle. Most probably they are remote controlled (either IR or RF) or they may be automatic guided vehicles (AGV). This device is also remote controlled land rover but as a remote control one can use his cell phone that means he can move the land rover by sending different commands from his cell phone, not only that, he can control it from anywhere in the world (of course where GSM / CDMA network is available). Also this technology does not require the vehicle to be limited by the length of the cable or in direct line of sight with controller (as with infrared set up) and also well known BLUETOOTH is still expensive and short range to be commercially viable. We did a massive field work before starting this project and we found that this device provides a nice platform to be used in the field of surveillance, scientific research, and of course in search and rescue operation. Our device works with the help of some basic components like microcontroller (AT89S52), a DTMF decoder (which decodes dial tones received from the cell phone) and dc power supply. This device would have also worked with GPS technology but with the help of DTMF technology the cost has been cut down drastically.
INTRODUCTION
A robot is a mechanical or virtual intelligent agent that can perform tasks automatically or with guidance, typically by remote control. In practice a robot is usually an electro-mechanical machine that is guided by computer and electronic programming. Robots can be autonomous, semi-autonomous or remotely controlled. Robots range from humanoids such as ASIMO and TOPIO to Nano robots, Swarm robots, industrial robots, mobile and servicing robots. By mimicking a lifelike appearance or automating movementsa robot may convey a sense that it has intent or agency of its own. The branch of technology that deals with robots is robotics. Robot is fast gaining popularity in industries for a wide variety of uses
General-purpose autonomous robots
General-purpose autonomous robots can perform a variety of functions independently. General-purpose autonomous robots typically can navigate independently in known spaces, handle their own re-charging needs, interface with electronic doors and elevators and perform other basic tasks. Like computers, general-purpose robots can link with networks, software and accessories that increase their usefulness. They may recognize people or objects, talk, provide companionship, monitor environmental quality, respond to alarms, pick up supplies and perform other useful tasks. General-purpose robots may perform a variety of functions simultaneously or they may take on different roles at different times of day. Some such robots try to mimic human beings and may even resemble people in appearance; this type of robot is called a humanoid robot. Humanoid robots are still in a very limited stage, as no humanoid robot, can, as of yet, actually navigate around a room that it has never been in. Thus humanoid robots are really quite limited, despite their intelligent behaviors in their well-known environments.
Dirty, dangerous, dull or inaccessible tasks
There are many jobs which humans would rather leave to robots. The job may be boring, such as domestic cleaning, or dangerous, such as exploring inside a volcano. Other jobs are physically inaccessible, such as exploring another planet, cleaning the inside of a long pipe, or performing laparoscopic surgery.
ORGANIZATION OF REPORT
The first chapter of the report deals about robot importance, its popularity in using worldwide.
In second chapter we have discussed about the block diagram of our project and through this we have tried to elaborate the working of our project by explaining the functions of different blocks. we have also explained DTMF technique with the datasheet attached at the end of the project. The chapter ends by estimating the cost of project and explaining about the advantages of the project.
The third chapter deals totally with the hardware description of the project. In these components of the power supply has been explained with complete circuit diagram. The microcontroller (ATmega16) which we have used in project has been completely described with labeled circuit diagram.
DTMF decoder (cm8870) which is used in decoding the multiple dial tone frequency used by mobile phone is explained properly with circuit diagram.
At the end of this chapter rectifier circuit has been explained which is used to convert Ac voltage to Dc one.
In fourth chapter we have dealt with software description of our project. In this we have explained the program which is used to control the microcontroller. For explaining the program we have taken help of the flow chart which explains the entire process step by step. The procedure to write and execute the program has been explained briefly.
In fifth and final chapter result and conclusion has been given and also bibliography has been given. In this chapter one can find the name of various books and url addresses from where the idea of doing this project has generated.
BLOCK DIAGRAM OF CELL PHONE OPERATED LAND ROVER
WORKING OF THE PROJECT
The method of project operation is given below.
Makes call to the mobile phone (as receiver) attached to the robot. Now after answering the call, and in the course of the call, if any button is pressed control corresponding to the button pressed is heard at the other end of the call. This tone is called dual tone multi frequency tome (DTMF) robot receives this DTMF tone
IC VOLTAGE REGULATORS:
Voltage regulators comprise a class of widely used ICs. Regulator IC units contain the circuitry for reference source, comparator amplifier, control device, and overload protection all in a single IC. Although
DESCRIPTION
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pin out. The on chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer.
DESCRIPTION
The L7800 series of three-terminal positive regulators is available in TO-220, TO-220FP,TO-3 and D2PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation.
Each type employs internal current limiting, thermal shut-down and safe area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents.