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.
This project consists a 16X2 LCD and 4X4 keypad. Thermal printer is also connected to microcontroller but it was optional. After parking the vehicle, the service person enters the vehicle license no, vehicle type and price. Microcontroller gets this information and develop TCP stack with standard format. This data stack is printed on thermal paper (if printer is provided). Also this stack data will be sent to web server. Web server consists of particular IP address and port number. Web server maintain data base of all tickets information with respective time. Owner could see this information in web server from any where I the world. This system avoid ticket manipulation from service men. The advantage of this project is vehicle details are stored in web server. This is very helpful for transport and cop departments.
Here we use 8051 as a microcontroller with 5v DC Power supply. 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. 4X4 keypad is directly connected to microcontroller. Thermal printer is also serially connected, but it was optional.
good information