Abstract :

Now a day’s Many real time applications connected to web(internet).This is very useful and helpful for customers to see application(requirements) from anywhere in the world. These web connected applications belong to server client model. TCP, UDP and HTTP protocols are used in this concept. Data transfer to web server is done through GPRS (General packet radio services) communication. We can transfer large amounts of data through this GPRS. Many Embedded Networking applications fall under this model only.

Security plays major role in every sector in every time. Home security is also very important for domestic purpose. By using this project we can watch our home from web. This project in interfaced with some sensors like fire, smoke, I.R ……etc for detecting real time parameters like fire occurrence, smoke detection ,unauthorizedentry……etc. These sensors are connected to microcontroller directly. Whenever particular parameter occurs, corresponding sensor will activate and microcontroller develop data format of all sensor information as TCP stack. Through GPRS provision modem sends stack information to particular Server IP and Port number which are related to a particular web server. There is 16X2 LCD display connected to microcontroller to know which sensor is activated. After completing all this process customer / user could see the information of all sensors from anywhere in the world. If any hazardous conditions occur we can alert from remote places also. There is optional service available i.e along with that web server data transmission user could get information to the mobile through GSM connectivity. But this service can be included depending on requirement.

Here we use 8051 as a microcontroller with 5v DC Power supply. Its having some Basic inputs and outputs. Serial (UART) protocol is primary concern here. The main heart of this project is GSM/GPRS modem and it work on GPRS AT commands. 16X2 LCD is connected to microcontroller through Digital I/O lines.

TECHNICAL SPECIFICATIONS:

HARDWARE SPECIFICATIONS

Micro controller         :           AT89x series

Crystal                        :           11.0592 MHz

LCD                            :           HD44780

LED                            :           5mm Red LED

Fire sensor                  :           ST1KL3B

Smoke sensor              :           MQx series

IR pair                         :           General purpose

Basic GPIOs

GSM/GPRS modem   :           Sim300/ Sim 900

RS232 interface          :           ST/MAX-232

POWER SUPPLY

Transformer                :           12V step down 

Filter                           :           1000uf/25V

Voltage Regulator      :           7805 / 7812

SOFTWARE SPECIFICATIONS

Software tools used

Keil IDE

Proteus VSM

UC flash

Web server

APPLICATIONS

• Home application
• Commercial applications
• Industrial applications

BLOCK DIAGRAM