Solutions Designed for Emergency Response Can Be Used for Tracking Mobile Phones. GPS tracking, cell phone GPS and mobile phone tracker tools are getting a lot of focus from consumers, cell phone businesses and software designers. The most recent mobile phones integrate GPS position features to track cell phone location.
In order to comply with Federal Communications Commission guidelines, cell phone companies have to be in a position to provide authorities with smartphone latitude and longitude to an precision of 50 to 300 meters. Cell Tower Triangulation does not always meet this condition. For evaluation, commercially available GPS modules can acquire accuracy down to 3-10m. This is dependent on a lot of factors, as GPS signals tend to be really weak and are disturbed by numerous variables. With Mobile Location Services (MLS), the GSM cellular network provider utilizes triangulation algorithms to compute the position of the device, its accuracy is proven to be much worse than that of GPS. MLS is also impacted by factors similar to GPS in the sense of the interference impeding signal strength 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 refers to whenever the GPS enabled mobile phone retains its last calculated location, the satellites that were in view at the time, and also the almanac information in memory, and attempts to connect to the same satellites and determine a new location based upon the previous information. This is generally the quickest GPS lock but Hot Start only works if the phone is in the same general area as when the GPS was last switched off. GPS Warm Start describes whenever the GPS enabled mobile phone recalls its last calculated position, and almanac used, but not which satellites were in view. It resets and makes an attempt to connect to satellite signals and computes a whole new position. The GPS receiver narrows the choice of which satellites tolook for because it stored its last known location and the almanac data helps identify which satellites are in range. 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 previous data, and attempts to locate satellites and attain a GPS lock. This normally takes the longest since there is no known reference data. The GPS enabled cell phone receiver must attempt to lock onto a satellite transmission from any available satellites.
As a way to have improved GPS lock times cell phone manufacturers and telco operators introduced Assisted GPS technology. It downloads the ephemeris and helps triangulate the handset basic position. GPS Receivers can get a quicker lock at the expense of a few kilobytes of data transmission. Assisted GPS, also known as A-GPS or AGPS, increases the performance of standard GPS in smartphones connected to the cellular network. In the US Sprint, Nextel, Verizon Wireless, and Alltel all use A-GPS. Which is a method of utilizing the cell network to accelerate finding of GPS satellites.
A-GPS assists location tracking performance of mobile phones (as well as other connected devices) in a couple of ways:
The first way is by assisting to secure a faster “time to first fix” (TTFF). A-GPS receives and archives information in relation to the location of satellites using the cell network so the position details does not need to be downloaded via the satellite.
The second process is by assisting locate devices when GPS signals are weak or impeded. Due to the fact GPS satellite signals may be impeded by tall structures, and do not pass through building interiors well Assisted GPS makes use of distance to cellular towers to calculate location when GPS signals are not accessible.
In the event that satellite signals are not readily available, or accuracy is less important than life of the battery, employing Cell-ID is a good alternative to GPS mobile phone location. The location of the smartphone may be computed by the cellular network cell id, that pinpoints the cell tower the cell phone is connected to. By knowing the location of the tower, you’ll be able to know approximately the place that the mobile phone might be. Nonetheless, a tower can cover a large area, from a couple of hundred meters, in high populationdensity areas, to several kilometers in lower density areas. This is the reason location CellID accuracy is lower than GPS accuracy. Having said that location using CellID still provides a very helpful alternative.
Another way of formulating device location is Triangulation or Mobile Location Services (MLS). Cell Tower Triangulation employs signal analysis data to determine the time it takes signals traveling from your telephone to no less than 3 cell towers to determine location.
Information about Phone Products for GPS Tracking
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