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Inconsistent data

Rafael Correia Ferraz shared this question 8 years ago
Answered

Good afternoon. First sorry for English. Google.E used the translator as here would be the need to support help. I bought the app for navigation (mode: off-line) the closed trails as the FREE version he answered me perfectly. Anyway, the big problem I'm having is with the data recorded with the Locus and Strava.

The problem is that the Locus and Strava data when entered in Google Earth (Show Elevation Profile) are almost equal, and the APP program they are different.

It will be a mistake both in the reading of the data or will be a Google Earth error?

Wait. Thank you.


Original PT-BR


Boa Tarde. Primeiramente desculpe pelo Inglês. Utilizei o tradutor do Google.E como aqui seria o suporte preciso de ajuda. Comprei o app para navegação (modo: off-line) nas trilhas fechadas, pois na versão FREE ele me atendeu perfeitamente. Enfim, o grande problema que estou tendo é com os dados gravados com o Locus e Strava.

O problema é que, os dados do Locus e Strava quando inseridos no Google Earth (Mostrar Perfil de Elevação) são praticamente iguais, e no programa no APP eles ficam diferentes.

Será um erro de ambos na leitura dos dados ou será um erro do Google Earth ?

Aguardo. Obrigado.

Replies (6)

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1

Hi, I'm not sure if I understand - do you mean that the elevation profile is different in Google Earth and in Locus/Strava?

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Yes. See below.


LocusMap Google Earth ->

Elevation Gain: 501m ( Not 683m - as in the picture )

Distance: 33.2KM

Maximum Speed: 58.2KM/h ( Not 48.8KM/h - as in the picture )


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Strava Google Earth ->

Elevation Gain: 502m

Distance: 33.3KM

Maximum Speed: 58.3KM/h


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Not that the Strava is better, because it was what came closest level of "Google Earth".


I used as a reference also Maplorer.com and LocusMap was the most difference offered.


STRAVA:

Total climb - 599m

Total descent - 558

Lowest point - 792

Highest point - 1047


lOCUS:

Total climb - 1245m

Total descent - 1196

Lowest point - 777

Highest point - 1035


Sorry the English. But I used Google Translate.

Thank you.

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1

Locus and Strava calculate the values from GPS (plus barometer if it's present) and both use some different method of optimization - that's why there are slight differences. When importing the track to Google Earth their measured elevation gain no longer matters as Google Earth places the GPS points on its digital 3D model of landscape and re-calculates the track's elevation gain - the differences are close to zero. I can't say anything regarding Maplorer as I don't know the software.

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1

I understand yes. however, Strava, which was closest to reality as shown in data from Google.

In my Cataye cycling computer he gave me the following measures:


-> Distance: 35.10KM (In Locus precision distance is greater - in this way - as you can see in the picture above.)

-> Max speed: 59.4Km / h (In Strava reports 58.7 km / h and Locus with 49.8Km / h)

-> Media Speed: 12.2km / h (Here the two were similar, with an acceptable difference, where the Locus with 11.3km / h and the Strava with 11Km / h)

-> Time real movement: (. Locus also more precise in its real movement) 2h 51m


Only strange speed, elevation gain and elevation Locus pass me the wrong way or optimize.


Sorry the English. But I used Google Translate.

Thank you.

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You know, measurements of cycling computers based on collecting impulses from magnetic sensors on the wheels will always be the most accurate. However, Locus offers many ways of settings of the measurement (unlike Strava) - you can adjust your track recording profile exactly to your needs - time and distance frequency of recording trackpoints, applying GPS optimizing filters etc. See Locus manual: http://docs.locusmap.eu/doku.php?id=manual:user_guide:tracks:recording:profiles_settings

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Hi, two months without a reaction, I consider this topic as answered and I'm closing it.

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