GPS tracking, cell phone GPS and cell phone GPS track software are gaining curiosity from potential buyers, cell phone companies and program coders. The latest smartphones have GPS position capabilities to track cell phone position.
To adhere to Federal Communications Commission guidelines, cellular phone companies are required to be able to supply authorities with device latitude and longitude to an accuracy of 50 to 300 meters. Cell Tower Triangulation will not always meet this condition. By way of comparison, commercially available GPS modules can achieve accuracy down to less than 10 meters. This relies on a lot of factors, as GPS signals are often really weak and are influenced by numerous environmental factors. With Mobile Location Services (MLS), the GSM cellular network provider utilizes triangulation techniques to calculate the location of the cell phone, its accuracy is proven to be less than than that of GPS. MLS is further impacted by the same issues as GPS in the sense of the interference impeding signal strength and the density of GSM towers to help in the triangulation effort. In remote areas position accuracy may be off as much as a mile.
GPS Hot Start describes when the GPS enabled cell phone remembers its last known location, the satellites which were in view at the time, and also the almanac information in memory, and attempts to connect to the same satellites and calculate a fresh position based upon the previous data. This is generally 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 refers to whenever the GPS enabled smartphone remembers its last known position, and almanac used, but not which satellites were in range. It performs a reset and tries to find satellite signals and computes a brand new position. 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 although not as long as a Cold Start. With GPS Cold Start, the device deletes all the previous information, and tries to locate satellites and complete a GPS lock. This usually takes longer than other methods since there is no known reference data. The GPS enabled device receiver must try to lock onto a satellite signal from any available satellites.
In order to have improved GPS lock times cellular phone manufacturers and telco operators designed Assisted GPS technology. It downloads the ephemeris helping triangulate the smartphone basic location. 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, improves the performance of standard GPS in cell phones connected to the cell network. In the US Sprint, Nextel, Verizon Wireless, and Alltel all use AGPS. Which is a means of using the cellular network to accelerate finding of GPS satellites.
A-GPS assists location tracking performance of cell phones (and also other connected devices) in two ways:
One way is by helping to get a faster “time to first fix” (TTFF). Assisted GPS receives and archives data concerning satellite position via the cell network so the coordinates data does not need to be downloaded from the the satellite.
The next process is by assisting position devices when GPS signals are weak or blocked. Because GPS satellite signals may be interfered with by tall structures, and do not go through building interiors well AGPS utilizes distance to cellular towers to approximate position when GPS signals are not accessible.
In the event that satellite signals are not obtainable, or accuracy and precision is less important than life of the battery, employing Cell-ID is a good alternative to GPS smartphone location. The position of the cell phone may be calculated by the cell network cell id, that recognizes the cell tower the phone is connected to. By understanding the location of this tower, you may know approximately the spot where the handset will be. Nonetheless, a tower can cover a massive area, from a few hundred meters, in high populationdensity regions, to several kilometers in lower density zones. This is why location CellID precision is less than than GPS accuracy. Nonetheless tracking via CellID still gives you a truly handy alternative.
Another way of determining cell phone location is Triangulation or Mobile Location Services (MLS). Cell Tower Triangulation uses signal analysis data to determine the time it takes signals traveling from your cellular phone to no less than three cell towers to judge location.
Do you really know where your Workers or Children are?
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