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6 <title>Petter Reinholdtsen: Navteq bruker
3-
12 måneder, OpenStreetmap.org trenger noen dager
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13 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
21 <div class=
"title">Navteq bruker
3-
12 måneder, OpenStreetmap.org trenger noen dager
</div>
22 <div class=
"date"> 7th September
2010</div>
23 <div class=
"body"><p>Jeg ble riktig fascinert av
24 <a href=
"http://www.aftenposten.no/nyheter/iriks/article3800967.ece">en
25 artikkel i Aftenposten
</a> om hvor hardt Navteq jobber for å oppdatere
26 kartene som brukes i navigasjons-GPSer, der det blant annet heter at
27 "på grunn av teknikken tar det alt fra tre til tolv måneder før
28 kartene er oppdatert". Når en kjenner hva slags oppdateringshastighet
29 som er tilgjengelig på
30 <a href=
"http://www.openstreetmap.org/">OpenStreetmap
</a> som
31 oppdateres på dugnad, blir det litt trist å se hva noe av det beste en
32 kan kjøpe for penger får til.
</p>
34 <p>Fra en endrer kartdataene i databasen til OpenStreetmap tar det
35 ca.
15 minutter før endringen er synlig på kartet som alle kan se på
36 web. Dernest overføres det daglig til en kartdump som lastes ned av
37 personen som lager Garmin-kart for Norge ca. en gang i uken. Med
38 OpenStreetmap.org og
<a href=
"http://www.frikart.no/">Frikart.no
</a>
39 kan en altså ha korreksjonene på plass i sin Garmin-GPS i løpet av en
40 uke. Det er også av tekniske årsaker at det tar så langt tid.
41 Jobbene som tegner kartene, henter ut kartdumpene og konverterer til
42 Garmin-format tar minutter og timer å gjennomføre, slik at de ikke
43 gjøres kontinuerlig men kun regelmessing.
</p>
46 <div class=
"tags">Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug
</a>.
</div>
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