23-08-2013, 01:11 PM
PASSWORD PROTECTED GSM BASED DEVICE CONTROL
PASSWORD PROTECTED .doc (Size: 425 KB / Downloads: 40)
DESCRIPTION:
This project is aimed to design a system to control the electrical devices in industries or homes by using GSM technology.A GSM modem provides the communication interface. It transports device protocols transparently over the network through a serial interface. A GSM modem is a wireless modem that works with a GSM wireless network. This GSM Modem can accept any GSM network operator SIM card and act just like a mobile phone with its own unique phone number. Advantage of using this modem will be that you can use its RS232 port to communicate and develop embedded applications. Applications like SMS Control, data transfer, remote control and logging can be developed easily. The modem can either be connected to PC serial port directly or to any microcontroller. This project gives the best solution for electrical power wastage. Also the manual operation is completely eliminated. This project is implemented on wireless technology. One of wireless communication system is GSM as it is very cheap and very easy to implement. The project PASSWORD PROTECTED GSM BASED DEVICE CONTROL is an exclusive project which allows the user to control the electrical loads in homes or offices just by sending predefined messages to the controlling system. This project is designed in such that a GSM modem is interfaced to the controller through serial port interface. The AC devices/loads which are to be controlled by using GSM will be interfaced to the controller through the relays. The GSM modem performs the task of receiving the message from the mobile and sending the messages to the mobile from the controlling unit. Each electrical device or load will be provided with a unique password. These electrical appliances can be operated only if the correct password is sent to the device through controlling unit using GSM technology.