Ukuma komhlaba ngokwesiko vrs. LiDAR. Ukuchaneka, ixesha kunye neendleko.

Ukwenza umsebenzi nge-LiDAR ingaba nechanileyo ngakumbi kunezolimo eziqhelekileyo? Ukuba iyanciphisa amaxesha, yiyiphi ipesenti? Ingakanani ukunciphisa iindleko?

 

Amaxesha atshintshile ngokuqinisekileyo. Ndikhumbula xa uFelipe, umvavanyi owayesenza umsebenzi wam wasentsimini, weza nephepha elinamaphepha angama-25 elinamacandelo anqamlezileyo ukuze enze iimephu zendlela. Khange ndiphile ixesha lokuchazwa ephepheni kodwa ndiyakhumbula ndiyenza nge-AutoCAD ngaphandle kokusebenzisa iSoftdesk okwangoku. Ndiye ndadibanisa ne-Excel ukuze ndazi ukuba ngowuphi umgama wokubeka ukuphakama phakathi kwezi nyuko zimbini, kwaye la manqaku abekwa kwimaleko yemibala eyahlukeneyo kunye namanqanaba, ukuze ekugqibeleni ndibajoyine ngee-polylines endizenze iirves.

Nangona umsebenzi wekhabhinethi wawuphambene, awuzange uthelekiswe nomsebenzi wasentsimini owawububugcisa, ukuba ufuna ukuba nedatha eyoneleyo yokwenza imodeli eyamkelekileyo xa i-altimetry yayingaqhelekanga. Emva koko kwafika iSoftDesk, eyandulela i-AutoCAD Civil3D eyenze lula ikhabhathi kunye noFelipe kwenye yezifundo zam bafunda ukusebenzisa isikhululo esipheleleyo, esinciphisa ixesha, sonyusa umthamo wamanqaku kunye nokuchaneka kwekhosi.

Imeko iidrones zokusetyenziswa kwabantu Ukophula iiparadigms ezintsha, phantsi komgaqo ofanayo: Ukuchasana notshintsho kubuchwephesha bokuphanda kuhlala kufuna ukunciphisa iindleko kunye nesiqinisekiso sokuchaneka. Ke kweli nqaku siza kuvavanya iingcinga ezimbini esizivileyo apho:

I-Hypothesis 1: Ukuphanda nge-LiDAR kunciphisa ixesha kunye neendleko.

I-Hpothesis 2: Ubume bendawo nge-LiDAR bukhokelela ekuphulukaneni nokuchaneka.

 

Icala lokulinga

Le magazini POB Ukucwangciswa komsebenzi apho kwenziwa khona umsebenzi kuvavanyo lwedatha, kusetyenziswa indlela eqhelekileyo kwiikhilomitha ezingama-40. Ngokwahlukeneyo, kumsebenzi wesibini kwiintsuku ezimbalwa kamva waphuhliswa kusetyenziswa ubume bendawo yeLiDAR kunye neekhilomitha ezingama-246 zedama elinye. Nangona la macandelo ayengalingani ngokomgama, icandelo elilinganayo lalilinganiswa ukwenza uthelekiso phantsi kweemeko ezifanayo.

 

Ulwahlulo lwezolimo

Uphando lobume bomhlaba luqokelelwe kumacandelo ahlukeneyo qho kwiimitha ezingama-30, ngokuhambelana nezikhululo ezikhoyo. Amanqaku ajikelezayo athathwe kumgama ongaphantsi kweemitha ezi-4.

Umsebenzi wawenziwe ngokulinganiswa ngamanqaku othungelwano lwe-geodetic, olwalungqinisisiwe nge-GPS ye-geodetic ecaleni kwemazembe, kwaye kula manqaku anqamlezileyo ahlolwa kusetyenziswa indibaniselwano yezikhululo zesalathiso kunye ne-RTK. Kwakudingeka ukuthatha amanqaku ongezelelweyo kwithambeka elikhethekileyo kunye neendawo zokutshintsha kweemilo ukuqinisekisa ukuhambelana kwemodeli yedijithali.

ipodiargraphy

 

Ukwahlukana kokusala phakathi kwamanqaku awaziwayo kunye nezilungelelaniso ezifunyenwe yi-GPS ziboniswe etafileni, ziqinisekisa ukuba uphando oluqhelekileyo luchanekile.

 

  Ubuninzi bokuhlala Ireyithi encinci yokuhlala
Horizontal 2.35 cm. 1.52 cm.
nkqo 3.32 cm. 1.80 cm.
Ezintathu-ntathu 3.48 cm. 2.41 cm.

 

Ucwaningo lweLiDAR

Oku kwenziwa ngeCandelo lokuZimela elibhabhayo kubude beemitha ezingama-965, ngobuninzi bamanqaku ayi-17.59 ngemitha nganye nganye. Bafumene amanqaku angama-26 olawulo awaziwayo kwaye bawela ngaphaya kweendawo ezili-11 ezongezelelekileyo zoku-odola ezazifundwa nge-GPS ye-geodetic.

Ngala manqaku angama-37 kwenziwa ulungelelwaniso lwedatha yeLiDAR. Nangona bekungeyomfuneko ukusukela ukuba ulungelelwaniso oluthathwe yi-UAV exhotyiswe ngesamkeli seGPS kwaye ilawulwa zizikhululo ezisisiseko, lifumene lonke ixesha ubuncinci beesathelayithi ezingama-6 ezibonakalayo kunye nePDOP engaphantsi kwe-3. iikhilomitha ezingama-20.

Iseti yeendawo zokujonga ezongeziweyo ezingama-65 zenzelwe ukungqinisisa ukuchaneka kwedatha yeLiDAR. Ngokumalunga nala manqaku, ezi nkcukacha zilandelayo ziye zafunyanwa:

Kwindawo yasezidolophini: 2.99 cm. (9 amanqaku)

Kwibala elivulekileyo okanye ingca ephantsi: 2.99 cm. (Amanqaku angama-38)

Ehlathini: 2.50 cm. (Amanqaku amathathu)

Kumatyholo okanye kwingca ende: 2.99 cm. (Amanqaku ama-6)

 

ipodiargraphy

 

Umfanekiso ubonisa ulwahlulo olukhulu phakathi kwamanqaku athathwe yi-LiDAR kumacandelwana athathwe ngamanxantathu aluhlaza.

 

Ulwahlulo oluPhezulu

Ukufumanisa kungaphezu komdla, ngokuchasene nengcinga yokuba uvavanyo lwe-LiDAR alufikeleli ngqo kuvavanyo oluqhelekileyo. Oku kulandelayo yi-RMSE (Ingcambu kuthetha impazamo yesikwere) amaxabiso, eyiparamitha yempazamo phakathi kwedatha efakiweyo kunye neendawo zokujonga ekubhekiswa kuzo.

 

Ulwahlulo lwezolimo Ukuphakamisa iLiDAR
1.80 cm. 1.74 cm.

 

Ukungafani ngexesha

Ukuba oku kungentla kusimangalisa, jonga okwenzekayo ngokwemilinganiselo yokunciphisa ixesha phakathi kwendlela ye-LiDAR efaniswa nemveli yendabuko:

Idatha yokuqokelela kwintsimi kunye ne-LiDAR yayingu-8% kuphela.

  • Umsebenzi weKhabhinethi wawungekho xNUMX%.
  • Ukuqulunqa intsimi + yendiza + iiyure zeKhabhinethi zeLDAR malunga nolwazi lwensimu + IKhabhinethi eqhelekileyo, i-LiDAR ifuna kuphela i-19%.

 

ipodiargraphy

Ngenxa yoko, iiyure ze-123 zomsebenzi nganye ngekhilomitha yezolimo eziqhelekileyo zancinciwe kwiiyure eziyi-4 ngekhilomitha kuphela.

Ukongezelela, ukuba inani elibanjwe likwahlula phakathi kwexesha elidlulileyo kwiinkqubo zokubanjwa kunye nekhabhinethi, indlela eqhelekileyo ifumane ama-13.75 amanqaku ngeyure, ngokubhekiselele kwii-7.7 izigidi ngeyure ye-LiDAR.

 

Ukungafani ngexesha

Iindleko zezi zixhobo zale mihla, ngezi zivamvo zifaka la manqaku, zibonisa ukuba umsebenzi kufuneka ubize kakhulu. Kodwa ngokwenza, ukuncitshiswa kwamaxesha okugaya kunye neendleko ezibonisa ubume bendawo obuqhelekileyo, Iindleko zokugqibela kumthengi weekhilomitha ze-246 zenza i-LiDAR 71% ngaphantsi kweendleko ezipheleleyo zeekhilomitha ze-40 ezinezityalo eziqhelekileyo!

Kubonakala kungenangqiqo, kodwa ixabiso nganye kwikhilomitha eliqhelekileyo ne-LiDAR yayingu-12% kuphela xa kuthelekiswa nezobugcisa bendawo.

 

Isiphelo

Ngaba ubume bendawo yeLiDAR buyitshintsha ngokupheleleyo indawo yesiko? Ayiphelele, kuba umsebenzi kunye ne-LiDAR uhlala uhlala kwindawo ethile yokulawula amanqaku, kodwa kunokugqitywa ekubeni ngazo zonke izibonelelo zexabiso, umgangatho wemveliso kunye nexesha, umsebenzi kunye neLiDAR uvelisa iziphumo phantse ngokuchanekileyo ngokulinganayo kobume bendawo eqhelekileyo

Kuya kuhlala kukho izinto ezilungileyo nezingalunganga; Ukuchaneka okuphezulu kobume bendawo obuqhelekileyo yinto engekhoyo, kodwa ubunzima bokucela imvume yokungena kwiipropathi zabucala, umngcipheko wendawo kwiindawo ezingaqhelekanga, imfuno yezikhewu phambi kwengca ende kunye nemiqobo… iphambene. Ewe kunjalo, uxinano lokhuselo lwamahlathi luza neziphene kwimeko yeLiDAR, azifani neparamitha zobudlelwane phakathi kweeprojekthi ezincinci kakhulu.

 

Xa ndiqukumbela, siyavuya ukuba ukwazi njani ubugcisa phambili kangangoko kwiiprojekthi ezinkulu njengoko ecetywayo thina, kuyimfuneko ukuba ingqondo evulekileyo kunye nokufumaneka opt iindlela ezintsha nezobuchule ukwenza mphandle.

8 Iphendula "ubume bendabuko bendawo vrs. LiDAR. Ukuchaneka, ixesha kunye neendleko. "

  1. Molo… .zihlobo… Ngokumalunga nokusetyenziswa kweedrones ukwenza uphando ... ingaba ithini inzwa kunye / okanye izixhobo ezibonisiweyo ukwenza uvavanyo kwindawo enkulu (i-1000 ine. Okanye nangaphezulu) ngezityalo ezixineneyo okanye ezixineneyo? apho ukufikelela kunzima kakhulu.
    Inqaku elihle kakhulu!

  2. ulwazi kakuhle kakhulu kwaye kundinika imbono olungcono obu bugcisa, agqiba ukuba kuyilo sisixhobo esikhulu, kodwa namava ekwenzeni ukuhlola aqhelekileyo kunye nezikhululo iyonke ithatha kubaluleke kakhulu, efuna ukwenza uhlengahlengiso ezininzi imigca iziseko kwiimilinganiselo kunye nezilungelelwano ezinikezela umyalelo onyanzelekileyo kwiprojekthi kwisigaba sokuphunyezwa apho iimitha ezingaphantsi kwe-0.05m yephutha zifunwa. mbuliso

  3. UYOHANE

    NDIYE NJENGENKQUBO YOKWENZISWA KWEENKQUBO NGOKUPHATHA UKUBA UKUBA UFUNA UKUFUMANA NOKUPHATHWA KUNYE.

  4. Kubalulekile ukwazi inyaniso kwimimandla yasezidolophini ezinabantu abaninzi, kuba kungekhona zonke iiprojekti ezinokuthi zizalise iinkcukacha kunye namaxesha.

  5. Inqaku elihle… !!! Ndicinga ukuba ngumbuzo esinawo ngaxa lithile

  6. UKUTHANDA UKUQALISWA KWENKQUBO YOKUPHATHA KWENKQUBO YOKWENZA NGOKUPHELEKILEYO
    UKUPHATHWA KWEENKQUBO

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