Mobile phone tracking is ascertaining the current position of a cell phone, whether it is stationary or moving. Our everyday lives have changed drastically with the advent of mobile phones; we are now reachable where-ever we might be, and we can call from where-ever we are, irrespective of whether we are travelling or stationary in some remote location. The mobile manufacturing companies have realized that mobile phones apart from being a costly piece of equipment, define the very personality of the user, they record his interactions, his contacts and any other details that maybe of value to him, as such localizing cellphones by GPS has become imperative, to prevent the mobile phone from being lost or stolen. The mobile phone users are getting younger each day; as such concerned parents would be reassured if they can track their ward on a picnic or a night out. Similarly, ladies feel more secure if their loved ones can track their location. Most importantly, a foreign traveler would be made at-ease in a new environment if he can communicate his location to his family back home, at any given time.
Localization can be effected either by multilateration of radio signals between multiple radio towers of these networks and the network of the phone, or by localizing cellphones by GPS.For the location of any mobile phone by multilateration, the mobile phone should be emitting the roaming signal, to be able to connect to any nearby antenna tower. The process, however does not require and active call to be in progress. The GSM method is based on the signal strength between the mobile and nearby antenna masts.
Sometimes the mobile’s positioning also includes ‘location based services,’ these disclose the actual co-ordinates of the bearer of that mobile phone. This technology is used by telecom companies to estimate the location of a mobile phone and also its user. The term locating is used for this process rather than positioning. This service is available as an option with the other location based services.
The GPS Tracking System:
The GPS or Global Positioning System is a satellite navigation system consisting of 27 Earth- orbiting satellites in space, this system provides location and time details in all weather conditions. The mobile maybe anywhere on the Earth or near the Earth, where there is an unobstructed line of site between the GPS receiver device and four or more GPS satellites. This system is used by the military, by the navy, by car manufacturers, by dog owners and for the safety of children.Localizing cellphones by GPS is a standard procedure followed by most of the mobile manufacturers; they have an in-built GPS receiver in the phone, which interacts with at-least four satellites out of the constellation of satellites.
The GPS receiver will place you exactly on a map, and constantly update your location as you travel. It gives you the data of how far one has travelled, how long a person has been travelling, his current & average speed, the trail he has followed and his expected time of arrival at the destination.
If the person using the method of localizing cellphones by GPS is indoors or surrounded by ‘urban canyon,’ the Assisted GPS has a plethora of tools which can help him pinpoint his location, although this process takes time. The phone downloads the information about the satellites’ location in the next 4 hours; as soon as this information is downloaded the GPS is operational. The Synthetic GPS uses computational power to predict satellite locations some days in advance. With cache satellite data stored within the device itself, the phone can find its location within seconds.