Abstract:

Mining security data report updates to remote web server using GPRS communication through TCP/IP and HTTP protocols with hard copy ticket printing on Thermal paper through Thermal Printer.

In these modern days everything is getting automated, thus reducing the manual and effort and save lot of time. Paying bills for home needs is in manual process which takes lot of time and even there are possibilities for human error. In this project we avoid such manipulations and save time. Instead of written signed paper bills, E writing (printing) is the best option to avoid human errors and saving time.  Here in this project we use thermal printer for printing text data on Thermal paper. We could update data to web server wireless protocols. These web connected applications belong to server client relation. TCP, UDP and HTTP protocols are used in this concept. Data transfer to web server through GPRS (General packet radio services) communication. We can transfer long data through this GPRS. Many Embedded Networking applications fall under this model only.               In any type of mines loading and unloading of material is a daily activity. The details of what type of material and how much quantity of material was loaded and unload are maintained manually through written records. There is wide range of scope to manipulate the manual data entry. By using this project we can easily eliminate this problem. This project consists 16X2 LCD and 4X4 key pad. Entry of vehicle detected by sensor and exit of vehicle is also detected by sensor. By using these two sensors we can get the number of vehicles coming in and going out. The vehicle service man enters vehicle details like license number, material type …etc., this information is passed to microcontroller and microcontroller develop TCP/IP stack with particular data format. Through IP address and Port number number using GSM/GPRS modem.

This same data print can be printed on thermal paper (slip) and service man can  submit day wise slips to owner. Owner could compare number of vehicles through web server and details on printed paper ( no. of vehicle on print log should be  equal to number of vehicles log in web server).

                         Here we use 8051 microcontroller with 5V DC Power supply.  Serial (UART) protocol is primary concern here. The main heart of this project is GSM/GPRS modem which works on GPRS AT commands. 16X2 LCD is connected to microcontroller through Digital I/O lines. AT keyboard is interface to microcontroller with PS/2 connection. 4X4 keypad is directly connected to microcontroller. Thermal printer connected to microcontroller serially and it works on ESC/POS commands, but microcontroller has only one serial port so that we have to use serial shift driver (built with relays or driver ics – depends on availability and possibility).

TECHNICAL SPECIFICATIONS:

HARDWARE SPECIFICATIONS

Micro controller         :           AT89x series

Crystal                        :           11.0592 MHz

LCD                            :           HD44780

LED                            :           5mm Red LED

Printer                         :           Thermal printer (miniature)

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

Webs server

APPLICATIONS

• Mines
• Shipping