vrs mphandle Traditional. LiDAR. Ukuchaneka, ixesha kunye neendleko.

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

Ngokuqinisekileyo amaxesha atshintshile. Ndiyakhumbula xa uFelipe, umcebisi owenza umsebenzi wezentsimi, weza nencwadana ye-25 kunye namaphepha amacandelwana ukuze avelise imephu ye-contour nayo. Andizange ndiphile ngexesha lokubhaliweyo kwiphepha kodwa ndiyakhumbula ukuyenza nge-AutoCAD ngaphandle kokusebenzisa i-Softdesk okwamanje. Ngoko ke uthathwa ne-Excel ukwazi ikude kangakanani beka nenkalo phakathi ukuphakama ezimbini kwezi ngongoma wema kweengqimba imibala kunye namanqanaba ahlukeneyo, ekugqibeleni sizihlanganise kunye polylines irlos yaba amagophe.

Nangona umsebenzi wekhabhinethi wawuqatha, awuzange uqhathanise nomsebenzi wasentsimini owawubugcisa, ukuba ufuna ukufumana idatha eyaneleyo yokwenza imodeli eyamkelekileyo xa i-altimetry yayingavumelekanga. Ngelo xesha kweza SoftDesk, imbali AutoCAD Civil3D ukuba lula kwiKhabhinethi kunye Felipe ekomnye izifundo zam ukufunda ukusebenzisa kwesikhululo iyonke, leyo kunciphise ixesha, umthamo amanqaku kwaye ke linyuke nokuchaneka.

Imeko iidrones zokusetyenziswa kwabantu ukuphula iiparadigms ezintsha, phantsi kweengcamango ezifanayo: Ukunyanzela ukutshintsha kwiindlela zobuqhetseba kuhlale kufuna ukunciphisa iindleko kunye nokuqinisekiswa kwechanekileyo. Ngoko siza kuhlalutya kweli nqaku le mibini into esiyivile apho:

I-1 Hypothesis: Ukwenza i -pographic ne-LiDAR kunciphisa ixesha kunye neendleko.

I-hypothesis i-2: Ukwenza ulwabalazo nge-LiDAR kuthetha ukulahleka kokuchaneka.

Icala lokulinga

Le magazini POB yenze umsebenzi apho umsebenzi wenziwa khona ekuqokelelwa kwedatha yesitya, usebenzisa iindlela eziqhelekileyo kunye neekhilomitha ze-40. Ngokwahlukileyo, ngomsebenzi wesibini iintsuku ezimbalwa kamva kwaqulunqwa usebenzisa ubugcisa bendawo kunye ne-LiDAR kunye neekhilomitha ze-246 ze-dike efanayo. Nangona amacandelo awazange alinganise kumgama, icandelo elilinganayo lithelekiswa nokwenza uthelekiso kwiimeko ezifanayo.

Ulwahlulo lwezolimo

Uphando lwezobugcisa luqokelelwe kwicandelo eliphambili kwiimitha ezili-30, ngokuhambelana nezikhululo ezikhoyo. Iinqonga zomnqamlezo zithathwe kwiimitha ngaphantsi kweemitha ezili-4.

Lo msebenzi wawuyi-georeferenced kunye neengongoma ze-geodetic network, eziye zaqinisekiswa ngeGadiodetic GPS kunye neengqungquthela, kwaye ezi zivela kumagqabantshintshintshi aphakanyiswayo usebenzisa ukudibanisa izitishi ezibonakalayo kunye ne-RTK. Kwakuyimfuneko ukuthatha amaphulo angaphezulu kwiindawo ezizodwa zokutshintsha kwethambeka kunye nefom ukuqinisekisa ukuhambelana kwendlela yokwenza idijithali.

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 eliLawulayo elihambahambayo ngokuphakama kweemitha ezili-965, kunye nobukhulu beengcambu ze-17.59 nganye kwimitha yesikwere. Baphinda bafumana i-26 iindawo zokulawula kwaye bawela kwi-11 eyongezelelweyo yamanqaku oku-oda afundwa ngeGadiodetic GPS.

Ngaloo ma37 kukho ukulungiswa kwedatha ye-LiDAR. Nangona kwakungekho mfuneko kwiingqungquthela ezithathwe yi-UAV ezayo ixhotywe yi-GPS yamkeli kwaye ilawulwa zizikhululo ziseko, ifumene lonke ixesha ubuncinane be-satellites ezibonakalayo ze-6 kunye nePOPOP ngaphantsi kwe-3. Imida ukuya kwisikhululo esisiseko yayingekho mkhulu kuneekhilomitha ze-20.

Isethi yee-65 zokulawula ezongezelelweyo zijoliswe ekuqinisekiseni ukuchaneka kwedatha ye-LiDAR. Ngokumalunga nale ngongoma, ezi zilandelayo zilandelayo:

Endaweni yasezidolophini: 2.99 cm. (Amanqaku e-9)

Kwintsimi evulekile okanye utshani ophantsi: 2.99 cm. (Amanqaku e-38)

Ehlathini: 2.50 cm. (Amanqaku e-3)

Ngotshani okanye utshani obude: 2.99 cm. (Amanqaku e-6)

ipodiargraphy

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

Ulwahlulo oluPhezulu

Ukufunyanwa kungakumbi kunomdla, ngokuchasene nengcamango yokuba uphando lwe-LiDAR alufikeleli ngokuchanekileyo kovavanyo oluqhelekileyo. Ezi zilandelayo zixabiso le-RMSE (i-Root Mean Square Error), okuyiyona mpazamo yephutha phakathi kwedata efunyenweyo kunye namanqaku okulawula.

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 zalezi zixhobo zanamhlanje, kunye nalawo masenjini athabatha loo mali, cinga ukuba umsebenzi kufuneka ube kubi. Kodwa ekusebenzeni, ukunciphisa amaxesha kunye nokunyuswa kweendleko eziqhelekileyo zibonisa ukuba, 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

Ingaba iimodi kunye neLiDAR ithatha indawo yezobugcisa bendabuko? Nakanye, kuba usebenza LiDAR kusoloko uthatha ethile mphandle ukuya iibhakana, kodwa kunokwenziwa isigqibo sokuba zonke iingenelo indleko, umgangatho imveliso kunye nexesha esebenza LiDAR yenza iziphumo kunye phantse ngendlela mphandle efanayo eziqhelekileyo

Kuza kuhlala kusekho iingxaki kunye nokuqhayisa; ngobuciko eliphezulu mphandle aqhelekileyo na nostalgic, kodwa iingxaki cela imvume ukungena kwipropati yabucala, iingozi kweendawo yendawo engagunyaziswanga, izikhewu kufuneka ingca ende kunye nemiqobo ... kuba uphambene. Ngokuqinisekileyo, ukuxinwa kwekhava lehlathi kubangela ukungalungi kwimeko ye-LiDAR, kwaye ayinayo imilinganiselo efanayo yobudlelwane phakathi kweeprojekthi ezincinane 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.

I-8 Iphendula kwi "Veta ngokwezembali. I-LiDAR Ukuchaneka, ixesha neendleko. ”

  1. Ngentsasa ekuseni ... abahlobo ... ngokubhekiselele ekusebenziseni i-drones ukuvelisa uphando ... oluya kuba kwisixhobo kunye / okanye izixhobo eziboniswe ukuphakamisa indawo enkulu (i-1000 Inayo okanye ngaphezulu) enezityalo ezininzi okanye ezininzi kakhulu? 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 kuyathandabuza ukuba sonke sinako ngexesha elithile

  6. UKUTHANDA UKUQALISWA KWENKQUBO YOKUPHATHA KWENKQUBO YOKWENZA NGOKUPHELEKILEYO
    UKUPHATHWA KWEENKQUBO

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