14-07-2012, 04:55 PM
GSM based Sensor Information System
Abstract
Sending and receiving the sms in home automation, home security, vehicle tracking device is one of the critical aspects. Often it is required to send and receive the sms .GSM modem works on the AT commands to send and receive the sms .
In this project we are using a GSM modem to send and receive the sms. This GSM modem is interfaced with the microcontroller at one end through uart and the other end it is interfaced with the LCD and a Temperature sensor. .Uart transmitter is used in this project to transmit the AT command and the message to be sent from the microcontroller to the GSM modem whereas receiver is used to receive the acknowledgement for the AT commands.
Whenever the temperature is crossing the threshold value that is fixed in the code , the microcontroller activates the GSM modem to send a predefined message to the authenticated person. The message to be sent and the number to which the message is to be sent will be predefined and will be stored in the code itself.
In this project we are using the PSoC CY8C29466-24PXI microcontroller family which is interfaced with the IR transmitter and receiver. The PSoC designer software will be used for implementing the software modules.