Modify iPhone client for traccar - which sends location data over TCP/IP

Please find this small iOS client, which continuously sends data to a p-redefined server on a port over TCP/IP. This is working software, I need to change slightly as below. [login to view URL] - Make it a background service - AT the moment it takes user input who defines the device indetifier. So replace manually configurable identifier with UUID, as I understand apple do longer allows IMEI number. -Make sure time is sent in UTC, at the moment it send in local timezone - Make sure service can run in background mode, and should auto start. - Modify it so that instead of sending data every so seconds - No UI requirement