GPS Camera Detection » speed gps

Could Airfrance been saved by gps speed?

admin — Sat, 24 Dec 2011 03:40:41 +0000

Just read the Air France 447 black box transcripts of the events. Apparently the pilot pulled up while in a stall because he as well as the other pilot thought it wasnt actually stalling since they were in a storm and that may mess up the airspeed indicator. If they had gps for speed, they would have known the plane was actually stalling. Whats the problem with using gps at least to estimate speed? Even if fps was not very accurate you would at least know that you’re not traveling several hundred miles an hour like you should be. Combine the gps speed with a good ol fashioned level which can’t ever fail and voila you know that yes you teuly are stalling.

GPS does give you speed but only absolute speed not air speed. At the altitudes that airliners fly at the wind can be over 100mph, that is a big enough difference to matter a lot.

The issue wasn’t that they didn’t know they were stalling. The stall warning alert was sounding the whole time.
The problem was that under normal conditions the computer in the aircraft won’t let you stall and so it’s safe to ignore that warning and keep pulling back. Due to the airspeed indicator freezing in the storm the computer safeties had disabled and so it was possible to stall. This is something the pilots should have known but seem to have forgotten.

The broken airspeed indicator didn’t cause the crash. Pilot error caused it, they didn’t understand or allow for how the flight controls on their aircraft functioned under non-standard conditions.

How does a GPS tracking unit calculate speed?

admin — Sun, 21 Aug 2011 05:21:21 +0000

The drivers of my company want to know how does a GPS tracking unit calculate speed and how accurate is it.

For average speed over a long distance it takes the distance traveled and divides it by the time taken – exactly what the other answers said.

For instantaneous speed, how fast you were going at one point in time, this approach doesn’t work. Which is a pity because that’s exactly what you want to know if you want to check your drivers aren’t speeding.
Each GPS position has an error of up to 5 meters, that means that if you take two positions a second apart take the distance between them and calculate the speed you could be off by up to 10 meters per second or about 22.5 mph.

The way a GPS actually calculates speed at any given moment is by measuring the doppler shift in the signals from the satellites. Just as a car engine or police siren sounds higher pitch when it’s heading towards you than when it’s heading away the signals from the satellites change very slightly depending on how fast you are moving towards or away from them.
If you know where you are (you have a GPS position) and you know where and how fast the satellites are moving (they broadcast that information) then by measuring the doppler on the signals you can calculate how fast the receiver is moving far more accurately than by taking the difference between two positions.

How accurate is it? As with anything to do with GPS it depends on how many satellites are being tracked and how strong the signals are. It would be rare for it to be more than one or two mph wrong.

Garmin GPS Speed Sensor, Touring Bike 30 mph?? Realistic?

admin — Wed, 20 Jul 2011 10:51:31 +0000

Hello,

I was cycling down a flat road, Garmin Edge states my speed was 30 mph, I was not pedaling super fast but. Can you tell me is this speed realistic? The touring bike RRP was £579.

If this is not a realistic speed can you tell me what I have done wrong with my GPS Speed Sensor.

I did follow the instruction but just checking.

Thanks for advice.

You probably configured the computer to the incorrect circumference.

Can a gps track speed while off?

admin — Fri, 24 Jun 2011 17:05:27 +0000

Can an after market GPS system for a vehicle track the speed, acceleration, locations and stuff like that when the GPS system is turned off but still in the vehicle?

It can track the locations provided you type in where you want to go. As for speed and acceleration, no.

Kawasaki ZXR400 top speed GPS

admin — Sat, 26 Feb 2011 00:27:23 +0000

Japanese market ZXR400 200km/h GPS after derestrict.
Few days berofe in low traffic it showed 203 km/h.
Used Garmin Foretrex 201 GPS.

Duration : 0:3:38

Technorati Tags: kawasaki, speed, TOP, ZXR400

TIMEX Ironman Global Trainer GPS REVIEW

admin — Thu, 17 Feb 2011 05:44:53 +0000

http://www.daveerickson360.com/ – Need a Triathlon Videographer / On Camera Host? Email Me: dave@daveerickson360.com ~ My review for TIMEX Ironman Global Trainer with GPS and Heart Rate Monitor.

Produced & Edited by www.daveerickson360.com. Contact DE360 for your next video project, email: dave@daveerickson360.com.

Available exclusively at REI stores and on REI.com and then it launches globally in September 2010 at most specialty sports and sporting goods stores, as well as timex.com.

The Global Trainer Bodylink System with GPS has so much for the weekend warrior and the serious triathlete. Get pace, speed, distance and more—all on your wrist. Easy to use for those who simply want basic data, thanks to the intuitive Timex design. Expandable and customizable for multisport athletes who require a high-performance training tool.

Duration : 0:6:40

Technorati Tags: Dave Erickson, Global Trainer, Ironman, Spokane, TIMEX Tap Screen, Triathlete, TV News Anchor, Washington

Irish GPS Speed Record Dungarvan

admin — Mon, 14 Feb 2011 07:09:09 +0000

Video of Irish Speedsailing Champion Oisín van Gelderen breaking all Irish records while sailing in Dungarvan, Co. Waterford, Feb 2011.

Speeds achieved:
Official Irish GPS Speed Record for 10 sec run: 45.02 knots, verified by WGPSSRC.

Other Speeds of the day:
500m: 43.96 knots
5 x 10 second average: 44.26knots
Peak Speed: 46.34knots

These are the fastest speeds every achieved by any Irish sailor on Irish waters, though Oisín’s highest ever peak speed is 47.17knots on a speed course in the UK.

More on ir777.blogspot.com or surfdock.ie
GPS speed rankings on : gps-speedsurfing.com

Duration : 0:3:13

Technorati Tags: dungarvan, ir777, ireland, JP Speed, Neil Pryde, speedsailing, speedsurfing, surfdock, surfdock.ie, windsurfing, windsurfireland

Garmin Forerunner 305 GPS Receiver With Heart Rate Monitor

admin — Fri, 11 Feb 2011 06:28:07 +0000

Garmin Forerunner 305 GPS Receiver With Heart Rate Monitor
http://www.amazon.com/gp/product/B000CSWCQA?ie=UTF8&tag=electronwebdesign-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B000CSWCQA
The Garmin Forerunner 305 GPS System combines form and function. This combination running partner and personal trainer is designed for athletes of all levels. It features a high-sensitivity GPS receiver, new courses feature, and robust ANT wireless heart rate monitor for optimal performance. The super-sensitive GPS tracks your every move, even working on tree-covered trails and near tall buildings. The heart device monitors your heart rate, speed, distance, pace and calories burned so you can train smarter, more effectively. These taskmasters will continually push you to do your personal best. Courses feature lets you download recorded courses and compete against previous workouts Auto Pause pauses and resumes training timer GPS features – GPS with high-Sensitivity SiRFstarIII architecture Wireless communication between system devices via ANT protocol Display Size(WxH) – 1.3 x 0.8 (33 x 20.3 mm) Lap Memory – 1,000 laps Rechargeable internal lithium ion battery – lasts 10 hours (typical use) Waterproof – Submersible in one meter of water for up to 30 mins. Alerts – Time, distance, pace and heart rate Physical Size(WxHxD) – 2.1 x. 7 x 2.7 (53.3 x 17.8 x 68.6 mm) Weight – 2.72 oz. (77 g). Heart rate monitor features – Transmission Range – approximately 3m (9.8ft) 3V CR2032 battery – lasts 3 years (1 hour per day) Physical size(WxHxD) – 13.7 x 1.4 x 0.5 (348 x 35.6 x 12.7 mm) Weight -. 74 oz (21 grams)

Duration : 0:0:52

Technorati Tags: garmin forerunner, garmin forerunner 305 gps, garmin forerunner 305 review, garmin forerunner 405, garmin forerunner gps, garmin forerunner gps watch

Suunto M5 Heart Rate Monitors

admin — Tue, 08 Feb 2011 14:00:07 +0000

http://www.heartratewatchcompany.com/Suunto-M5-Heart-Rate-Monitors-p/suunto-m5.htm – The new Suunto M5 heart rate monitors have incredible features and styling. You can even add optional sensors to get speed and distance data for running, cycling and any outdoor sport thanks to a GPS sensor.

Duration : 0:1:41

Technorati Tags: cycling watch, GPS watch, GPS watches, heart monitors, heart rate monitors, m5, running watch, running watches, suunto heart rate monitor, suunto m5, suunto m5 heart rate monitors, suunto m5 review, suunto m5 reviews

Topspeed 139kph Yamaha Sniper Rextor, Kawahara Cams, Vixion valvespring

admin — Sat, 05 Feb 2011 14:57:02 +0000

top speed jamskies bike with the ff mods
-stock bore 54mm = 135cc
-stock head
-stock front tire 70/90×17
-stock rear tire 80/90×17
-stock sprocket 15/39
-stock carb 22mm
-rextor cdi
-vixion valvespring
-r9 exhaust pipe
-kawahara K1 racing camshaft
-protec groundstrap racing coil

SPEED ACCURACY
Sniper Speedometer reading: 139kph
GPS speed reading: 128kph
Sniper speedometer error = 9% advanced

GPS DEVICES USED:
1. Nokia N82 (archdaevil)
2. Holux M1000 (akoa)

Summary:
adding kawahara K1 and protec racing coil on previous jamskies setup adds around 10kph top speed.
(this bike is using philippines yamaha sniper specs)

Previous gauge reading of jamskies bike on 130kph
http://www.youtube.com/watch?v=Qn5c0vCzd88
http://www.yamahat135.com

Duration : 0:3:6

Technorati Tags: 135, 135lc, cam, cams, circuit, coil, crypton, cryptonx, drag, exciter, gensan, groundstrap, HONDA, jupiter, k1, k2, kawahara, lc135, mx, protec, Racing, rextor, Sniper, spark, spark135, SUZUKI, topspeed, track, valvespring, vixion, yamaha, yamahat135