Methods for Phone Tracking

Systems Produced for Emergency Response Can Be Employed for Tracking Your Children. GPS tracking, mobile GPS and mobile phone track software packages are undoubtedly gaining curiosity from consumers, cellphone businesses and application coders. The most current cell phones provide GPS position capabilities to track smartphone position.

To help abide by Federal Communications Commission guidelines, cellular phone companies are required to be in a position to deliver authorities with device latitude and longitude to an precision of 50 to 300 meters. Cell Tower Triangulation fails to always meet this requirement. For comparison, commercially accessible GPS modules can get precision right down to less than 10 meters. This varies according to a lot of factors, as GPS signals are often particularly weak and are affected by numerous factors. With Mobile Location Services (MLS), the GSM cell network provider utilizes triangulation algorithms to try to pinpoint the position of the mobile phone, its accuracy is proven to be much worse than that of GPS. MLS is also impacted by the same issues as GPS in the sense of the interference affecting signal quality and the density of GSM towers to assist in the triangulation calculation. In remote areas position accuracy may be off as much as a mile.

GPS Hot Start means when the GPS enabled mobile phone retains its last identified location, the satellites that had been in range at the time, and also the almanac data in memory, and makes an attempt to lock onto the same satellites and determine a brand new position based upon the previous information. This is almost always the quickest GPS lock but Hot Start only works if the phone is generally in the same location as when the GPS was last turned off. GPS Warm Start is whenever the GPS enabled smartphone keeps its last calculated position, and almanac used, but not which satellites were in range. It performs a reset and attempts to connect to satellite signals and calculates a new location. The GPS receiver narrows the choice of which satellites toseek because it stored its last known position and also the almanac data helps identify which satellites are within view. The Warm Start will take more time than the Hot Start but not as long as a Cold Start. With GPS Cold Start, the device deletes all the previo

us information, and tries to find satellites and attain a GPS lock. This takes longer than other methods because there is no known reference information. The GPS enabled handset receiver must try to lock onto a satellite signal from any accessible satellites.

So as to get better GPS lock times cell phone manufacturers and telco operators introduced Assisted GPS technology. It downloads the ephemeris and helps triangulate the smartphone general position. GPS Receivers can get a quicker lock in return for a few kilobytes of data transmission. Assisted GPS, often known as A-GPS or AGPS, helps the performance of normal GPS in handsets connected to the cellular network. In America Sprint, Nextel, Verizon Wireless, and Alltel all use AGPS. Which is a method of utilizing the cellular network to speed up finding of GPS satellites.

A-GPS assists location tracking performance of cell phones (along with other connected devices) in a couple of ways:

One way will be assisting to secure a faster “time to first fix” (TTFF). Assisted GPS gets and archives information in relation to satellite location via the cellular network so the position information does not need to be downloaded via the satellite.

The second technique is by helping position smartphones when GPS signals are weak or blocked. Since GPS satellite signals may be interfered with by tall buildings, and do not go through building interiors well AGPS uses distance to cellular towers to estimate position when GPS signals are not available.

When satellite signals are not readily available, or precision is less important than battery life, using Cell-ID is a useful alternative to GPS smartphone tracking. The location of the handset can be determined by the cellular network cell id, which recognizes the cell tower the cellphone is connected to. By having the position of the tower, you may know approximately the spot where the device is. Nonetheless, a tower can cover a huge area, from a couple of hundred meters, in high populationdensity regions, to a few miles in lower density areas. This is why location CellID precision is lower than GPS accuracy. Even so location using CellID still supplies quite a good substitute.

Another way of calculating smartphone location is Triangulation or Mobile Location Services (MLS). Cell Tower Triangulation utilizes signal analysis data to calculate the time it takes signals to travel from the telephone to at least 3 cell towers to calculate position.

Methods for Phone Tracking