A GPS Tracker, namely GPS tracking unit, is a device that uses the Global Positioning System to determine the precise location of a vehicle, person, or other asset to which it is attached and to record the position of the asset at regular intervals. The recorded location data can be stored within the tracking unit, or it may be transmitted to a central location data base, or internet-connected computer, using a cellular (GPRS or SMS), radio, or satellite modem embedded in the unit. Our website provides info on gps tracker
A GPS tracker essentially contains GPS module to receive the GPS signal and calculate the coordinates. For data loggers it contains large memory to store the coordinates, data pushers additionally contains the GSM/GPRS modem to transmit this information to a central computer either via SMS or via GPRS in form of IP packets. The diagram depicts a hardware architecture of an advanced GPS tracker.
Types of GPS Tracking Units:
Usually, a GPS tracker will fall into one of these three categories, though most smartphones, being GPS Phones, can work in all these modes, depending on which mobile applications are installed:
The Data Loggers
This GPS logger can simply logs the exact position of device at regular intervals inside its available internal memory. The modern ones can either have the memory card slot or the internal flash memory and the USB port. Some can act as USB flash drive and this can allow you to download track data log to look forward for analysis in the computer.
The Data Pushers
This is the most common type of GPS Tracker and this is used as an asset tracker, personal tracker as well as a vehicle tracker. This type of tracker is also called as GPS beacon. The function of this device is to push the position of the device including such information like the speed or the altitude at regular intervals into a recognized server which can save as well as can directly analyze data.
The Data Pullers
These GPS data pullers are also recognized as GPS transponders. In the contrary to the data pushers that send the exact position of devices at regular intervals or through the use of push technology, these data pullers are always-on and at the same time they can be questioned habitually as needed or with the make use of pull technology. Not everyone use this particular type of technology. An example to this type of device is a computer which is associated to internet with a running gpsd in it. Time and again this can be utilized in situations where in the location of the tracker is only needed to be known in an occasional basis.