fuel management system

fuel management system.
1- The system will running on Android and IOS.
2- the system will need setup for
Enter identification code ( 16 caracters)
Enter Payment Mode
Enter Credit card or debit card information
Enter fuel type product restriction.
3- the system will check the GPS position
Valide with the gas station GPS position
Need valide de position +- 5 meters
4- the system will send string data to the pump controller
by internet and wireless .
the system will send data to the gas station identification number

5- after checking the pump status, the system will show the pump aviable
on screen ( graphic Picture)
6- the customer select the pump
click on pump and start
7- the system will send the approval request to the pump controller,
the pump controller will pre-authorise the payment card,
private card, credit card or debit card
the pump controller return a approval answer
8- the customer take the pump and filling vehicule
The application will showing the pump status
dollars, liters, price per liters (picture)
9 when the customer close the pump,
the application will showing the pump staus.
dollars, liters, price pet liters
Collect the purchase in folder.
10- The pump controller close the transaction
and it will send a receipt by sms or email.
11- the GPS customer postion need inside +- 5 meters all the time of transaction.
if the GPS position is not respected,
the application need send a command
for stop the pump and close transaction

12- The pump controler send and received a ascii command.
the command description are in a Documentation .
the cummunication is by eternet and internet.