Hummingbird Electronics’ GPS Trailer Odometer is a device that is permanently mounted to a trailer, namely a camper trailer or caravan with the sole purpose of recording the distance travelled. But even it is going to be off a … The odometer is probably more trustworthy as long as you haven't changed tire size or anything. What this means: For a vehicle travelling at a true speed of 100km/h, the speedo must read between 100km/h and 114km/h. Does it match the odometer or does it still show the discrepancy? How accurate is a GPS… With the GPS and altimeter, you can be sure of how much, and how fast you’ve gone, all from the compact display. There is often a difference between the odometer reading on the dash board and the odometer reading on the truck ECM or Electonic Onboard Computer. However, the high accuracy of the bematists's measurements rather indicates the use … Pedometer Vs Odometer Accuracy? When GPS was approved for civilian use there was an intentional degradation of the signal, Selective Availability (SA), limiting position accuracy to around ~150 - 200 ft. SA was turned off in May 2000 and accuracy improved to ~50 ft. Total trip distance, current speed, average speed, altitude and top speed . This has to do with the fact that the ECM reading is pulled from the GPS pings and the dashboard reading comes from calculating how many rotation a truck's tires do within 1 mile. I think GPS adds up your distance travelled incrementally, like an odometer, but is also subject to little variations, since it only knows your position approximately. Another thing to remember that Tire Pressure is recommended at two weight ranges. GPS INTERFACES: Dewesoft offers various robust navigational GPS receivers for precise location tracking, acceleration, and speed measurement. Speedo is effected by tyre wear and pressure, plus the mechanical/electronic accuracy. Odometer accuracy vs GPS. Does anyone know if this will give me an accurate distance reading? For an accurate GPS reading, your car must be on a flat, straight road. As I accelerate from 0 to 70 mph, the value of the difference goes … So even … I did adjust settings to update GPS position every second instead of default 2 seconds to make sure app keeps up with vehicle speed. Incorporating customisable service intervals allows the user or service agent to set a specified date for a reminder and/or set a distance travelled with adjustments between values … From '14 on the … Some makes and models of car can be 10% or more- and that's before wear and tear or aftermarket tires. Now, the speedometers match very … Could this be accurate? When this happens, the GPS has to guess to fill in the gaps. GPS Accuracy is slightly better with clear skies than with cloud cover. The effect of this is that many drivers will find that at 100km/h they are driving up to 14km/h below the speed limit if they rely on the vehicle’s speedo. Replies: 14 Views: 2,304. > @hgmichna said: If you had bothered to actually check, you would know that the Tesla speedometer is accurate." This is very accurate GPS speedometer and GPS odometer App, this app have many features like measure current speed, total distance, average speed, total time spent on journey, top speed of your journey and many more with bike speed meter, km/h meter TOP FEATURES 1. I would guess that the diff you see between the odometer and Google maps is typical but there is no good way to judge which is more accurate … There is often a disparity between a car's speedometer and the GPS or navigation device. 5 years ago. Yeah, in a straight line, like driving down the freeway, your GPS is more accurate than even your car's speedo and odo. The odometer, (and speedometer when you're at a steady speed) of your gps is much more accurate than the odometers in most cars. The bike computer will simply work using the GPS, GLONASS and anything else it has. s1njin, Jan 3, 2011, in forum: Gen 3 Prius Fuel Economy. When I finished this one, the Trip Odometer showed 1.45 miles, while the Track Log showed 1.28 miles. km speed test 2. Both authors list the distances of routes traveled by Alexander the Great (r. 336-323 BC) as by his bematists Diognetus and Baeton. My concern is that at slow speeds the odometer reading on the screen of the GPS is inaccurate as explained in the blog. Vehicle odometer shows about the same difference between in distance travelled as trip meter; I connected a bluetooth OBDII unit to the vehicle's port and paired it with the app running on the vehicle head unit. https://www.mapon.com/en/blog/2020/05/difference-in-odometer-and-gps-data The second cache I completed was on flat terrain on a wide rails to trails path. The further you sink into MPG nerdity, the sooner it will become clear that you need to know how accurate your odometer is. I would have to say the GPS is the most accurate, but it’s not perfect. Ideal for almost anything that requires measuring outdoor distance traveled such as walking, running, driving, boating, hiking, horseback riding. sammyj0r, Jul 31, 2010, in forum: Gen 3 Prius Fuel … Why is it important? I just notice that the mileage on my GPS is 10% higher then what my odometer says I rode. Features: - Accurate to within 1 … Includes run in background capability. This is of concern to hikers trying to get an accurate distance for a trail. Tideland Prius Jan 9, 2011. Possibly the first evidence for the use of an odometer can be found in the works of the ancient Roman Pliny (NH 6. Digital Odometers are incorporated into some Raveon GPS transponders such as the M7-GX. GPS Speedometer and Odometer (Pro) (9 Similar Apps & 2,287 Reviews) vs DigiHUD Pro Speedometer (9 Similar Apps & 3,135 Reviews). It goes up to 3-3.5 mph when the tires are worn. Mileage vs Mileage GPS or odometer? If you have an ANT+ heart rate monitor paired with your odometer, this calorie count can be quite accurate. This is where another sensor comes into play: the barometric altimeter. As soon as there are curves, there's a lag, and as soon as there are undulations, there are inherent inaccuracies in the reading as a result - it's all maths. I tend to think the GPS is not 100% accurate because you can't guarantee 100% of the time it will have a good signal, or accurate fix. It flaunts a 1.8” that’s crisp and easy to read even during low light conditions. I used to get near 100% agreement between CardioTrainer and both my bike's odometer … Because it does not … Mudcat Unregistered. For best results, use outdoors. If the odometer is perfectly accurate with a new set of OEM tires, properly inflated. ~J. Page 1 of 3 1 2 3 Next > Mudcat, Jun 25, 2009 #1. My Xices were, 2-3 mph off so I wanted Tesla to adjust for it which they do but only if you pay them $2k for wheels and tires vs. $200. One of the parameters the app shows is the speed difference between ECU and GPS, updating it in real time. Surprisingly, there is no federal law that regulates odometer accuracy. Your GPS records position (to plus/minus 10m or so, depending upon the quality of your GPS) and the current time (to an incredible accuracy), and stores it like … Big Steve, Mar 14, 2013, in forum: Gen 3 Prius Fuel Economy. Relative speed over distance is used in order to calculate energy expended. I haven’t seen an accurate speedometer on a car yet. Is so what does the software show when you make the trip in the car? How much of a difference and how much is … INERTIAL MEASUREMENT UNITS: Dewesoft also offers very rugged IMU units which in addition to GPS receivers have roll/pitch/heading channels with dead reckoning and offer an IP67 degree of protection. This is on a 05. 61-62) and the ancient Greek Strabo (11.8.9). Using Google Earth to verify your odometer accuracy Posted Wednesday, April 5/06 in General. I have the Track Log setup to record by Distance, at an interval of .01 miles. I will be off a little bit as the tire rubber wears and in the tire pressure is not to specification. Discussion in 'GS Boxers' started by Mudcat, Jun 25, 2009. And that could result in a few extra or fewer miles. And if it is updating that measurement dozens of times each second, it should be accurate – … I ended up with a speedo healer to correct it. The Garmin Edge is a compact and easy to use GPS computer that comes with a rugged design, made for the trails. The difference between completely clear and fully overcast is generally less than 0.1% and my testing includes a similar mix of cloud cover for each watch, so I ignore this difference. GPS Odometer only does one thing, and does it well: measure distance traveled. Odometer Accuracy. I was shocked how much difference the /55 vs /50 tire made in the accuracy of my 2011 Ninja's speedo/odo accuracy. They work very well, but you will see a difference in reading between the digital odometer reported by a GPS transponder and the odometer on the dashboard. Note that GPS does not work well under a roof. I'm glad you asked! Jump to Latest Follow 1 - 3 of 3 Posts ... vs GPS my 2014 speedo is consistantly 2 mph low with new /55 PR5 tires. Maybe your fuel economy is … The answer is simple: although vehicle odometer readings are close to the actual mileage traveled, they are not precise. The reason for the "shortening" on a twisty mtb ride is that the GPS "draws" straight lines from each "one second sampling point", rather than that curve you actually rode. It has good accuracy at any speed, and on days when I have good satellite coverage produces a very even track log with few errant track points. Re: GPS vs pedometer: Boondoggle: 6/19/11 4:03 PM: Actually, it appears to me that two updates ago GPS accuracy went totally down the drain. But if you are moving at 30mph, you are covering more than 13 metres per second, which makes it possible for a satnav to measure your speed accurately. It's typical for a car to leave the factory with an odometer that's 5% off. As far as I know, you are correct in the level of accuracy for civilian GPS units (like satnavs) being lower than military applications. Accuracy is a big difference between the bike computer and the smartphone. I don't see it ever happening (not even sure what the design standards have to say, they might also dictate a mechanical speed reading … Load is what the load is given the rider and other cargo. Odometer accuracy is no longer defined. Ever notice the odometer reading in your vehicle differs from the distance calculated by an online mapping provider? Now if you download the RAW data in the GPS and evaluate it by other means then you can come up with very accurate distances as is done in several fields of science every day. Replies: 20 Views: 2,236. I was checking odometer accuracy today using GPS enabled app on my phone and I got slightly concerned: Giulia showing me 5.2 miles for the trip while "GPS distance and location tracker" app shows 5.0 miles. It will be somewhere in the range. Which is more accurate? How accurate is the "miles to empty meter" ? F8L Mar 21, 2013. Ran a one way straight distance betweeen two points measured by my phone at 4.7 miles (in 65 minutes which seemed odd considering I am reasonably fast) I later measured the same distance as 7.3 miles on my car's odometer. Police radar and GPS both agree, I'll go with that, thanks. It's important simply because an inaccurate odometer will throw off your mileage calculations. Joined: Jul 22, 2004 Oddometer: 4,472 Location: Bay Area. GPS is more accurate, speedos are set 5% to 10% high since manufacturers would get sued if they said people were doing the limit when they are in fact speeding. While both have GPS for positioning, a lot of the apps that work on a phone will analyze the data after it's uploaded to work out positioning and timing. I suspect though that if every single fix has been a clean accurate fix then it probably comes up with data that is many more times more accurate than the odometer is even capable of doing. 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