Ingemuva lephrojekthi

Ukuze kusheshiswe ukugqugquzelwa kokuhlanganiswa komhlaba wezindlu ezithengiswayo, umhlaba wokwakha ngokuhlanganyela kanye nomunye umsebenzi wokubhalisa amalungelo wezindlu zasemaphandleni. Ngo-2016, iSifunda saseYuncheng Yanhu saphothula ucwaningo lwe-cadastral lwelungelo lokusebenzisa umhlaba wokwakha kanye nowokwakha ngokubambisana, sabeka isisekelo esiqinile sokubhaliswa kwezindlu ezithengiswayo. Manje sethule ngokusemthethweni nangokuphelele Ukuqinisekiswa Kwezakhiwo Nokubhaliswa Kwezindawo Zasemakhaya Esifundeni Sase-Yanhu kanye Nomklamo We-3D Wokumodela Nokuthenga Izakhiwo. Okuqukethwe komsebenzi kufaka phakathi inhlolovo yobunikazi bezindlu zasemaphandleni, ukudwetshwa kwemephu yephrojekthi yemephu yendawo yesikali sesikali esingu-1:500, i-oblique photogrammetry, imodeli ye-3D, nokuthuthukiswa kwesofthiwe yokubhaliswa kwezindawo ezithengiswayo kanye nesistimu yesitifiketi.

Iphrofayela Yenkampani

I-Star Space (tianjin) Technology Development Co., LTD., iwumhlinzeki wesevisi yemboni yolwazi lwendawo ehlanganisa ukutholwa kwedatha ye-3D kanye nocwaningo lwenkundla yolwazi lwendawo ye-3D nokuthuthukiswa.

Ibhizinisi eliyinhloko lenkampani inhlolovo ye-airborne lidar yasemoyeni, inhlolovo yokuskena kwe-laser yezimoto, inhlolovo yokuskena nge-laser yaphansi, inhlolovo yasemoyeni yedijithali engenamuntu, ukukhiqizwa komkhiqizo we-4D nokwakhiwa kwesizindalwazi, ukwakhiwa kwedolobha ledijithali le-3D, isixazululo sedijithali se-3D kanye nokukhiqizwa kwezithombe ezinyakazayo ze-3D, Ukuthuthukiswa kwesoftware ye-GIS, njll. Izinsizakalo zayo zihlanganisa ukuhlola okuyisisekelo nokubhala amamephu, ukuhlela amadolobha, ukuphathwa komhlaba, ukwakhiwa kwedolobha elihlakaniphile, ukubhekana nezimo eziphuthumayo zasemadolobheni, ukugadwa kwamaselula, kanye nokuhlola kanye nokwenza imephu yomgwaqo onguthelawayeka, amapayipi kawoyela kanye nezimboni zokonga amanzi.

Indawo Yokuhlola

I-Yuncheng Salt Lake District itholakala eningizimu-ntshonalanga yeSifundazwe sase-Shanxi, esisemngceleni wezifundazwe i-Qin, iJin kanye ne-Yu maphakathi ne-Yellow River, ixhuma i-Xia County empumalanga, i-Yongji ne-Linyi entshonalanga, i-Zhongtiao Mountain kanye UPinglu noRuicheng eningizimu, neJiwang Mountain neWanrong, iJishan neWenxi enyakatho. Le ndawo ingamakhilomitha angama-41 ububanzi ukusuka empumalanga kuya entshonalanga, amakhilomitha angama-62 ubude ukusuka enyakatho kuya eningizimu, futhi indawo yonke ingamakhilomitha-skwele ayi-1237.

Lo msebenzi ubandakanya isamba samadolobha ayi-19, izigodi zokuphatha ezingama-287, iziqephu zomhlaba ezingaba ngu-130,000, ezikala indawo engamamitha-skwele ayi-100. Ngesikhathi sephrojekthi, ngokuhambisana ngokuqinile nezidingo zemibhalo nezindinganiso ezifanele, iphrojekthi yenze inhlolovo ephelele yobunikazi bezindlu zasemaphandleni, imephu yephrojekthi yemephu ye-topographic esikalini esingu-1:500, i-oblique photogrammetry, imodeli enezinhlangothi ezintathu, kanye nokuthuthukiswa kwesoftware yezindawo ezithengiswayo. uhlelo lokubhalisa kanye nezitifiketi. Imali yenkontileka yephrojekthi ibingaphezu kwezigidi ezingama-yuan ezingama-40.

Ukukhethwa Kwezisetshenziswa

Amasethi amabili emishini yokundiza yasensimini asetshenziswa kule phrojekthi. I-DJI M300 UAV ifakwe ikhamera ye-Chengdu Rainpoo D2 PSDK, kanti i-M600 ifakwe ikhamera ye-DG3 PROS. Ukucutshungulwa kwangaphakathi kusetshenziswa ukucubungula kweqoqo lamakhompyutha angu-30, ikhompuyutha efakwe ikhadi lemifanekiso elingu-2080TI noma elingu-3080, inkumbulo engu-96G, amaseva amathathu e-AT(aerotriangulation) ane-10T solid-state hard disk, umshini we-node 256 solid-state hard disk.I-Rainpoo iyikhamera echwepheshile yokwenza imephu ye-drone umkhiqizi, kanye nekhamera ye-Rainpoo oblique isetshenziswa kakhulu kuphrojekthi yokuhlola yasemoyeni.Izithombe zekhwalithi ephezulu eziqoqwe ngekhamera ziyisiqinisekiso somphumela wemodeli ye-3d.

Uhlolojikelele lwezokundiza nokundiza

Kule phrojekthi, ukuphakama kokuklama kwakuyi-83 m, ukulungiswa komhlabathi (GSD) kwakuyi-1.3cm, futhi ukusebenza kwenziwa ngokuvumelana nesihloko / ukugqagqana kohlangothi kwe-80 / 70% yezilinganiso ezivamile ze-cadastral. Umzila wabekwa ohlangothini olusenyakatho naseningizimu ngangokunokwenzeka, futhi kwatholakala izithombe zangempela ezingaphezu kwezigidi ezingu-4. Isikhala se-GCP sicishe sibe ngamamitha ayi-150, futhi indawo ezungezile nekhona lendawo yokulinganisa kwenyusa ubuningi ngendlela efanele.

Ukucutshungulwa Kwedatha

Indawo yamadolobhana asendaweni yenhlolovo imayelana namakhilomitha-skwele angu-0.3, amanye afinyelela ngaphezu kuka-1 square metres, kanti isibalo sezithombe singaba ngu-20,000. Kunezinkinga ezimbalwa zobuchwepheshe ekucubunguleni imodeli ye-oblique, okuyisisekelo sokusebenza kwepayipi. Imephu ye-Cadastral nokuguqulwa kwemodeli ikakhulukazi amaqhinga olwandle lomuntu. Imisebenzi efana namamodeli ama-monomers, ukugcinwa kwedatha, ukubonisa ulwazi neminye imisebenzi isingathwa isofthiwe eyakhiwe ngokuzimela inkampani yethu.

Ngenxa yobuningi bezithombe, i-M3D AT(Aerial Triangulation) isetshenziselwe ukucubungula idatha. Wonke amaphrojekthi anemvelaphi efanayo kanye nosayizi ofanayo we-block, ukuze ikhodi ye-block yemiphumela yephrojekthi ngayinye iyingqayizivele, ekulungele ukugcinwa kwemodeli nokusesha. Ithebula lenhlanganisela yebhulokhi liboniswa ngezansi:

Isiphetho Sephrojekthi

Njengamanje, le phrojekthi ayikaqedwa ngokuphelele, futhi kuphela isheke elilula nezibalo zenziwa emiphumeleni ephakathi yemodeli. Iningi lezinkinga lingaxazululwa ngokukhipha kabusha imboni yangaphakathi nokudweba isithombe futhi, kuyilapho abambalwa bedinga ukundiza futhi.

Ngokuvamile, ukunemba kwemodeli kuhle, futhi izinga lokuphasa lingaphezu kuka-95%. Mayelana nemodeli, imodeli ye-DG3 ingcono kancane kunemodeli ye-D2 ngaphansi kwezimo ezifanayo. Izinkinga zamamodeli ikakhulukazi zihlanganisa amaphuzu alandelayo: ukukhululeka kwezwe okubangelwa idigri egqagqene noma ukulungiswa akuhlangabezani nezimfuneko, isimo sezulu esinemvula noma inkungu ebangelwa ukukhanya okunganele noma ukubonakala.

Isithombe-skrini semodeli

Ngaphambi kokundiza, okokusebenza kwe-RTK kusetshenziselwa ukukala izixhumanisi ezinembile zamaphoyinti esici saphansi (okufana nokuwela amadube, imigqa yokumaka, okuqondiwe kohlobo lwe-L nezinye izici ezibalulekile) endaweni yokulinganisa njengezindawo zokuhlola ukuhlola ukunemba kwemodeli esigabeni sakamuva. . Isistimu yokuxhumanisa i-CS2000 isetshenziselwa indawo yokuhlola futhi ukuphakama kwepharamitha efanelekile kusetshenziselwa ukuphakama. Okulandelayo isimo sokulinganisa kwethu amaphuzu wesici. Ngenxa yesikhala esilinganiselwe, sikhetha kuphela ezimbalwa zazo esizozibonisa.

Isingeniso Sokusetshenziswa Kwemiphumela

Isetshenziswa kakhulu ukudweba imephu ye-cadastral yendawo ethengiswayo, ukusiza inhlolovo yensimu, ukwakhiwa kwedathabhesi, njll. (Le phrojekthi isesigabeni sokuqala, futhi kunedatha embalwa esetshenzisiwe).

Imodeli ye-Oblique iyinqubo yangaphambili yokulinganisa indawo yokuhlala, ethinta ngokuqondile isimiso sephrojekthi. Ikhamera ye-Rainpoo esiyikhethile inikeza iphrojekthi yethu ukwesekwa okuqinile. Sisebenzise amadivaysi amabili ukuthinta iphrojekthi engaphezu kwezigidi ezingama-yuan ezingama-40. Okokuqala, ukusebenza kahle kuphezulu futhi ukuzinza kunamandla. I-M300 ifakwe ikhamera ye-D2, ekwazi ukubona ukusebenza okukodwa, futhi inqubo yokusebenza ayinazo izinkinga. Ngemuva kwalokho, idatha ilula, cishe izithombe ezingavumelekile ezingaba ngu-30% zingasuswa, kuthuthukiswe ukusebenza kahle komsebenzi wasehhovisi, izinga lokuphasa le-AT(i-aerial triangulation) liphezulu, ngokuyisisekelo konke kungadlula kanye, ekugcineni, ikhwalithi yemodeli iphezulu. , kokubili ukunemba kwemodeli kanye nekhwalithi yemodeli inokusebenza okuhle.