QUOTE(Proclaimer @ Mar 27 2012, 11:46 AM)
This is totally wrong. GPS speed is the most accurate because they use real time readings to calculate your speed.
The tolerance you are talking about is the absolute positional accuracy. That means that you are standing at one spot and the gps might show an inaccurate reading of 5m-15m from your real location. That depends on the gps signal strength during that time.
Speed is calculated by updating 2 or more points in real time. When you go from one spot to another spot. say first spot is 0m then next spot is 10m, gps will calculate the difference in distance with time to get your speed. So its more accurate than a speedometer thats for sure.
Yes, speed is calculated based on 2 points but since actual location is not very accurate(>5m range), does it make a difference if I travel from 0 to 5m? It could be the same position for gps, so can the speed still be accurate?The tolerance you are talking about is the absolute positional accuracy. That means that you are standing at one spot and the gps might show an inaccurate reading of 5m-15m from your real location. That depends on the gps signal strength during that time.
Speed is calculated by updating 2 or more points in real time. When you go from one spot to another spot. say first spot is 0m then next spot is 10m, gps will calculate the difference in distance with time to get your speed. So its more accurate than a speedometer thats for sure.
Added on March 27, 2012, 8:03 pm
QUOTE(babysmile @ Mar 26 2012, 09:59 PM)
Wonder how it detect front & rear passenger seatbelt reminder.This post has been edited by onesky: Mar 27 2012, 08:03 PM
Mar 27 2012, 08:00 PM



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