Abstract
Global Positioning System (GPS) is a satellite network that sends some encoded data regularly and it makes possible finding any location on the Earth by employing measurements between satellites and receiver [1]. The satellites of GPS spread radio signals consistently. Receivers of GPS take these signals. This project presents a system that processes data, which are taken from GPS with an electronic circuit, and shows on a map the real-time location via a web site [4]. In addition to this process, the system supplies geofencing opportunity. For the geofencing operation, a point is marked as a center and a geofencing limit is determined. When the distance from the point is larger than the geofencing limit, an alarm will be occured. The system, proposed within this project, supplies a real-time geolocation tracking application with some tolerance. This fault tolerance depends on some factors like air condition or number of linked GPS satellites. Several experiments were achieved to prove the effectiveness of the proposed system that results are encouraging and motivate authors for further studies
Highlights
The GPRS+Global Positioning System (GPS) Quad-band Module Shield for Arduino includes the SimCom SIM908 module which uses both GPRS and GPS technologies
The code, after some global variables are initialized, firstly starts with setup() function. When this function is completed, loop() function is processed and the code is finished. get_GPS() function is called for receiving information from GPS and later sendHTTP() function is called in the loop() function. With this function the information that are received from GPS via get_GPS() function are sent to web server
There are many GPS receiver devices using for real-time geolocation tracking
Summary
The GPRS+GPS Quad-band Module Shield for Arduino includes the SimCom SIM908 module which uses both GPRS and GPS technologies. With showing the location if the determined geofencing limit is achieved, an short message service (SMS) will be sent to a cell phone from the receiver circuit. As shown, the receiver circuit reads the coordinates from GPS. An integrated system, including an Arduino card and one SIM908 shield are used as the receiver.
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