CellGeocoder was created as a web service for smart localization of a GSM device using GSM triangulation methods. It is an independent part of a home care monitoring system developed in our laboratory. In order to provide help to patients in time, it is necessary to know their location.
Our monitoring unit is equipped with a GSM / GPRS module, and optionally a GPS receiver. GPS provides accurate location, but it can only be used outdoors, GPS cannot receive signal inside buildings. Therefore there is great interest on to use GSM/3G infrastructure in order to detect location as an alternative to GPS.