GPS-based highway toll collection system: Novel design and operation

Figures & data

Figure 1. Block diagram of GPS-based highway toll collection system.

Table 1. Module functions

Module	Function
Microcontroller	Coordinates activities of the GPS-based highway toll collection system
GPS module	Acquires GPS coordinates of moving vehicle
LCD module	Displays notification on toll location and pricing information
speaker	Audio notification on toll collection and lock state of vehicle
Wireless Wi-Fi router modem	Establishes a wireless 3G connection from an unlocked SIM card
Wireless Wi-Fi adapter	Enables the microcontroller to connect to the established 3G connection

Figure 2. Flowchart of the program for the GPS-based highway toll collection system (working2410.py).

Figure 3. Flowchart for internet connection availability detection (internetGPS.py).

Figure 4. Toll fee payment notification on LCD module.

Figure 5. Toll fee payment logged in SQL database.

Figure 6. Plot of difference in longitude against speed.

Figure 7. Plot of predicted difference in longitude against speed.