Difference between Active GPS, Passive GPS and Hybrid GPS
This page compares Active GPS vs Passive GPS vs Hybrid GPS and mentions difference between Active GPS, Passive GPS and Hybrid GPS terms.
GPS is satellite based navigation system introduced in 1978 by United States. Each of the satellites in GPS system transmits at a rate of 50 bits per second and communicate positioning information to mobile devices on the earth.
A-GPS version obtain assitance data at greater speed of about 100 Mbps than GPS. This makes mobile devices obtain positioning information faster compare to GPS.
There are three types of GPS (i.e. Active GPS, Passive GPS and Hybrid GPS) based on how collected GPS location data is transmitted to a vendor's software for processing. Let us understand what is the difference between Active GPS, Passive GPS and Hybrid GPS.
➨Cellular communication is used to transmit the collected GPS data to vendor software for processing.
➨The transmission is carried out in "near real time" at every minute, every 5 minutes etc.
➨Vendors allow configuration of this timing parameter as per specific client request.
➨In this type, GPS receiver on user device collects GPS data throughout the day.
➨Once the client returns home, he/she is intructed to place GPS receiving device in charging unit slot.
➨Once the device is connected with charger, the GPS receiver transmits GPS data collected to vendor's software for processing (using landline phone connection).
As mentioned with Active GPS, location data is sent to the vendor software for processing
in "near real time" and then send on to agency immediately. With Passive GPS location information is
downloaded to vendor software when he/she return home and "not done in real time".
➨In this type, data is sent to the vendor on less regular basis, but switches to active mode automatically
in the event of an alert.
➨The timing of GPS data collection interval is also programmable such as hours etc.
➨In Hybrid GPS, the time parameter is usually much longer than active GPS but it is more frequent than once a day as with passive GPS.
➨For example, time parameter is set so that data is transmitted at every 4 hours.
➨Hybrid GPS uses cellular technology to transmit location data.
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