designSpecs

    OpenParkingFinder - An open source parking manager and parking finder.
    Copyright (C) 2019 Louis van der Walt

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or any
    later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.

Overall flowchart
    Entry
        Person presses button on the machine. Camera reads the license 
        plate and stores it on the system. System issues a parking ticket 
        number and prints the ticket.
    Findig of car in parking space
        Vehicle moves on rail in the centre of the parking row roof. Cameras
        on either side reads the numberplates of the cars parked to the left 
        and right. The data is saved on the system. Logs are kept as reference.
    Payment
        Person pays their parking. System fetches the linked license plate number,
        and identifies the place parked stored in database. The parking is displayed
        on the payment machine's screen.