Technology Made for Emergency Response Can Be Utilized for Tracking Your Spouse. GPS tracking, mobile GPS and cell phone tracking software applications are really attracting focus from consumers, mobile phone companies and software makers. The most up-to-date smartphones include GPS location features to track smartphone location.
GPS receivers, no matter if inside a cell phone, or perhaps a specific Gps tracking device, compute location through accurately timing the signals passed on by GPS satellites. This critical information includes the time the message was transmitted, exact orbital data (formally referred to as the ephemeris), and also the basic system condition and rough orbits of all GPS satellites (technically referenced as the almanac). GPS receivers sometimes take a long time to become ready to navigate after being turned on because it must acquire some basic information in addition to capturing GPS satellite signals. This slow start can be caused if the GPS smartphone has been unused for days or weeks, or has been moved a significant distance while turned off for. The GPS must update its almanac and ephemeris data and store it in memory. The GPS almanac is a set of data that every GPS satellite transmits. When a GPS receiver has current almanac data in memory, it can acquire signals and compute initial location faster.
GPS Hot Start is whenever the GPS enabled mobile phone keeps its last calculated position, the satellites that were in view at the time, and also the almanac data in memory, and tries to find the same satellites and determine a fresh position based upon the previous information. This is usually 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 is when the GPS enabled smartphone recalls its last known position, and almanac used, but not which satellites were in view. It performs a reset and attempts to find satellite signals and computes a whole new position. The GPS receiver has a general idea of which satellites toseek since it saved its last known location and also the almanac data helps determine which satellites are in range. The Warm Start will take longer than the Hot Start but not as long as a Cold Start. With GPS Cold Start, the device deletes all the previous information, and attempts to locate satellites and accomplish a GPS lock. This will take more time since there is no known reference information. The GPS enabled cell phone receiver has to attempt to lock onto a satellite signal from any available satellites.
As a way to have improved GPS lock times cellphone manufacturers and system providers developed Assisted GPS technology. It downloads the ephemeris helping triangulate the mobile phone basic location. GPS Receivers will get a faster lock in exchange for a few kilobytes of data transmission. Assisted GPS, also referred to as A-GPS or AGPS, helps the performance of normal GPS in devices connected to the cellular network. In the US Sprint, Nextel, Verizon Wireless, and Alltel all use AGPS. Which is a means of utilizing the cell network to speed up acquisition of GPS satellites.
A-GPS improves location tracking functions of mobile phones (along with other related devices) in two ways:
One method will be helping to obtain a more rapid “time to first fix” (TTFF). Assisted GPS gets and archives information regarding satellite location using the cellular network and so the position details does not need to be downloaded from the the satellite.
Another method is by assisting locate mobile phones when GPS signals are weak or impeded. Due to the fact GPS satellite signals may be impeded by tall buildings, and do not pass through building interiors well A-GPS makes use of proximity to cellular towers to estimate position when GPS signals are not readily available.
If satellite signals are not obtainable, or precision is less important than life of the battery, using Cell-ID is a useful alternative to GPS mobile phone location. The position of the mobile phone might be estimated by the cell network cell id, which identifies the cell tower the smartphone is connected to. By understanding the position of the tower, then you can know approximately the location where the device is. Still, a tower can cover a large area, from a few hundred meters, in high populationdensity locations, to a few kilometers in lower density regions. This is the reason location CellID accuracy is less than than GPS accuracy. Having said that location using CellID still presents quite a handy substitute.
Another method of formulating mobile phone location is Triangulation or Mobile Location Services (MLS). Cell Tower Triangulation uses signal analysis data to compute the time it takes signals traveling from your mobile phone to a minimum of three cell towers to judge position.
Do you truly know where your Mobile Workforce or Children are?
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