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Title:Ugotavljanje natančnosti pozicij vzorčnih dreves z različnimi GPS-napravami
Authors:ID Drevenšek, Peter (Author)
ID Stajnko, Denis (Mentor) More about this mentor... New window
Files:.pdf VS_Drevensek_Peter_2010.pdf (1,12 MB)
MD5: B2717CE0F296907BA01B5B3FAAB7C5A9
PID: 20.500.12556/dkum/f84e4123-c6fb-421b-a6dd-48c5d02e508e
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKBV - Faculty of Agriculture and Life Sciences
Abstract:V diplomskem delu smo proučevali natančnost določanja pozicije vzorčnih dreves z različnimi GPS napravami. Natančnost pozicije vzorčnega drevesa je temeljnega pomena za odvzem vzorca za napovedovanje pridelka in varstvo rastlin. V ta namen smo uporabili GPS-naprave March II, ASUS P565 in Nokia 5800 XpressMusic različnih natančnosti in cenovnih razredov. Za določanje pozicije in njihove natančnosti smo si izbrali 30 naključno izbranih dreves in opravili meritve. Ugotovili smo, da so meritve pri MARCH II odstopale po diagonali za 16,72 m, po X za 11,41 m in po Y za 10,57 m. Pri ASUS P565 so meritve odstopale po diagonali za 15,42 m, po X za 3,48 m, in Y za 13,86 m in pri Nokia 5800 XpressMusic za 46,15 m po diagonali, po X za 11,37 m in Y za 39,6 m. Iz primerjave posameznih naprav smo ugotovili, da je bila najnatančnejša GPS-naprava ASUS P565 z odstopanjem po diagonali za 15,41 m, vendar v povprečju boljša od MARCH II le za 1,31 m. Najnatančnejša meritev je bila prav tako izvedena z ASUS P565 in sicer se je približala na natančnost 0,66 m. Čeprav so bila odstopanja pri posameznih točkah minimalna, so te naprave še vedno premalo natančne, da bi lahko z njimi nedvoumno določili pozicijo vzorčnih dreves.
Keywords:GPS, pozicioniranje, sadovnjak, vzorčenje
Place of publishing:Maribor
Year of publishing:2010
PID:20.500.12556/DKUM-16326 New window
NUK URN:URN:SI:UM:DK:GYPLLC5A
Publication date in DKUM:15.10.2010
Views:2231
Downloads:208
Metadata:XML DC-XML DC-RDF
Categories:FKBV
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Secondary language

Language:English
Title:Determination of tree position accuracy with different GPS devices
Abstract:In this graduate work, we studied the accuracy of measured positions of sample trees with different GPS devices. The accuracy of the tree position is fundamental for the sampling to predict crop and plant protection measures. For our purpose we used GPS devices MarchII. ASUS P565 and Nokia 5800 XpressMusic, which represented different precision and price ranges. To determine the positions and their accuracy, we chose 30 randomly selected trees and preformed measurements. We found that the measurements made with MARCH II deviated to a diagonal for 16,72 m, in X coordinate for 11,41 m and in Y coordinate for 10,57 m. Measurements made with ASUS P565 deviated to a diagonal for 15,42 m, in X coordinate for 3,48 m and in Y coordinate for 13,86 m. Nokia 5800 XpressMusic showed deviation for 46,15 m in diagonal, 11.37 m for X coordinate and 39,6 m for Y coordinate.. From the comparison of individual devices we have found out, that the most precise GPS device was ASUS P565, which deviated in diagonal for 15,41m, but on the average was better only for 1,31 m from MARCH II. The most accurate measurement was carried out with ASUS P565 namely, where the accuracy was in range of 0,66 m. Despite the fact that discrepancies in individual position is minimal, these devices are not yet sufficiently precise to be unequivocally identified with the position of sample trees.
Keywords:GPS, positioning, orchard, sampling


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