21-02-2011, 12:27 PM
[attachment=8888]
METHODOLOGY OF THE STUDY
EMBEDDED SYSTEMS
Embedded systems are self-contained programs that are embedded within a piece of hardware. Whereas a regular computer has many different applications and software that can be applied to various tasks, embedded systems are usually set to a specific task that cannot be altered without physically manipulating the circuitry. Another way to think of an embedded system is as a computer system that is created with optimal efficiency, thereby allowing it to complete specific functions as quickly as possible.
Embedded systems designers usually have a significant grasp of hardware technologies. They use specific programming languages and software to develop embedded systems and manipulate the equipment. When searching online, companies offer embedded systems development kits and other embedded systems tools for use by engineers and businesses.
Embedded systems technologies are usually fairly expensive due to the necessary development time and built in efficiencies, but they are also highly valued in specific industries. Smaller businesses may wish to hire a consultant to determine what sort of embedded systems will add value to their organization.
OPERATION OF CIRCUIT
In this application we are using GSM module to receive as well as to transmit the messages. Whenever we send the command to GSM module then it can do particular operation depending upon the command what we are placing in the application program. Whenever we send a command to GSM module it can send the messages as well as mobile number to controller through serial interface .The controller read the message from serial interface of GSM if it is valid message then controller can turn the motor or on the bulb as well as controller can display the mobile number on LCD. Microcontroller can send the result operation to GSM whether motor is ON\OFF or bulb is ON\OFF, then GSM module can send the message back to mobile.
In this project I used some commands those are follows.
AT+CMGD ....................................DELETE SMS MESSAGE
AT+CMGF .....................................SELECT SMS MESSAGE FORMAT
AT+CMGR .....................................READ SMS MESSAGE
AT+CMGS ......................................SEND SMS MESSAGE
1 …………………………….. TO ON THE MOTOR
2 ……………………………….TO OFF THE MOTOR
3 ……………………………….TO ON THE BULB
4 .……………………………….TO OFF THE BULB
METHODOLOGY OF THE STUDY
EMBEDDED SYSTEMS
Embedded systems are self-contained programs that are embedded within a piece of hardware. Whereas a regular computer has many different applications and software that can be applied to various tasks, embedded systems are usually set to a specific task that cannot be altered without physically manipulating the circuitry. Another way to think of an embedded system is as a computer system that is created with optimal efficiency, thereby allowing it to complete specific functions as quickly as possible.
Embedded systems designers usually have a significant grasp of hardware technologies. They use specific programming languages and software to develop embedded systems and manipulate the equipment. When searching online, companies offer embedded systems development kits and other embedded systems tools for use by engineers and businesses.
Embedded systems technologies are usually fairly expensive due to the necessary development time and built in efficiencies, but they are also highly valued in specific industries. Smaller businesses may wish to hire a consultant to determine what sort of embedded systems will add value to their organization.
OPERATION OF CIRCUIT
In this application we are using GSM module to receive as well as to transmit the messages. Whenever we send the command to GSM module then it can do particular operation depending upon the command what we are placing in the application program. Whenever we send a command to GSM module it can send the messages as well as mobile number to controller through serial interface .The controller read the message from serial interface of GSM if it is valid message then controller can turn the motor or on the bulb as well as controller can display the mobile number on LCD. Microcontroller can send the result operation to GSM whether motor is ON\OFF or bulb is ON\OFF, then GSM module can send the message back to mobile.
In this project I used some commands those are follows.
AT+CMGD ....................................DELETE SMS MESSAGE
AT+CMGF .....................................SELECT SMS MESSAGE FORMAT
AT+CMGR .....................................READ SMS MESSAGE
AT+CMGS ......................................SEND SMS MESSAGE
1 …………………………….. TO ON THE MOTOR
2 ……………………………….TO OFF THE MOTOR
3 ……………………………….TO ON THE BULB
4 .……………………………….TO OFF THE BULB
