LUMPISKOT waxay bixisaa xaqiijinta tayada tayada sare iyo adeegga iibka, oo ay caddeeyaan qaran, warshado gaar ah, iyo nidaamyo tayo leh. Jawaabta macaamiisha ee deg degga ah iyo taageerada iibka ee firfircoon kadib.
Kusoo dhawow warbaahinta bulshada ee boostada degdegga ah
Dareenka hawada hawadaSidoo kale waxay ka qabsan karaan qodobbada gaarka ah ee lasse, oo loo yaqaan cabirka soo celinta lasse, ama u diiwaan geli signalka dhameystiran maadaama ay soo noqonayso, oo loo yaqaanno mowqif buuxa, waqtiyo go'an oo ah 1 Ns (oo daboolaya qiyaastii 15 cm). Liir-Liidhka oo buuxa ayaa inta badan loo isticmaalaa kaymaha, halka xisbiga Lidar-ka Liir uu leeyahay codsiyo ballaaran oo ku baahsan dhammaan qaybaha kala duwan. Qodobkaani wuxuu ugu horreyntiisii uga hadlayaa soo celinta Distret-ka Liir iyo isticmaalkiisa. Cutubkan, waxaan ka bixin doonnaa dhowr mowduucyo muhiim ah oo ku saabsan Lagar, oo ay ku jiraan qaybaha aasaasiga ah, sida ay u shaqeyso, sax ahaanteeda, nidaamyada, iyo ilaha jira.
Waxyaabaha aasaasiga ah ee Liidha
Nidaamyada Liidha ee fadhigeedu yahay ee ku saleysan Luur sida caadiga ah waxay u isticmaalaan lasers wonors inta u dhaxaysa 500-600 nm, halka hawada hawada hawada loo adeegsado lasers mowjadaha dhaadheer, oo u dhexeeya 1000-1600 nm. Jees-ka-hawada hawada ee caadiga ah waxaa ka mid ah scanner laser, oo ah unug lagu cabiro masaafada (unugga unugga), iyo nidaamyada xakamaynta, kormeerka, iyo duubista. Waxa kale oo ku jira nidaam meelood oo meelayn oo kaladuwan (DGPs) iyo unugga cabbiraadda jilicsan (imo), oo badanaa lagu daro nidaam loo yaqaan hal meel iyo nidaam hanuunin. Nidaamkani wuxuu bixiyaa goob sax ah (dhaadheer, latitude, iyo ballac) iyo hanuunin (rogrognsion (duudduuban, garoonka, iyo cinwaanka) xogta.
Qaababka ay u baajin karto aagga ay ku kala duwanaan karto, oo ay ku jiraan Zigzag, isbarbar dhig, ama wadiiqooyinka elliptical. Isku-darka xogta DGGPS iyo xogta IMU, oo ay weheliso xog hagitaan iyo cabbirrada kor u kaca, ayaa u oggolaanaya nidaamka inuu si sax ah u socodsiiyo dhibcaha laser ee la soo ururiyey. Qodobbadaas ayaa markaa ka dib isuduwaha loo xilsaaray (x, y, z) Nidaamka isku-dubka juquraafi ahaaneed ee ku saabsan nidaamka adduunka ee 1984 (WGS84) Datum.
Sidee LiirarDareenka fogShaqo? U sharax hab fudud
Nidaamka Liidar wuxuu soo koraayaa mid deg deg ah laser laser ah oo ku saabsan shayga bartilmaameedka ah ama dusha sare.
Laser-ka laser-ka ayaa ka turjumaya bartilmaameedka oo ku soo noqo dareenka shabakadda.
Dareenka ayaa si sax ah u cabiraya waqtiga ay ku qaadanayso garaacis kasta si ay ugu safraan bartilmaameedka iyo dhabarka.
Adeegsiga xawaaraha iftiinka iyo waqtiga safarka, masaafada bartilmaameedka ayaa loo xisaabiyaa.
Marka lagu daro booska iyo xogta hanuunka ee ka socota GPS iyo dareemayaasha IMU, isku-duwaha saxda ah ee 3D ee milicsiga laser ayaa la go'aamiyaa.
Tani waxay keenaysaa in ay ku cunaan daruur 3D ah oo ah daruur oo matalaya dusha sare ama shayga.
Mabda'a jirka ee Liidhka
Nidaamyada Lagar waxay adeegsadaan laba nooc oo lasers ah: mowjado la jeexjeexay iyo mowjad joogto ah. Nidaamyada LEAR ee Pulsed waxay ka shaqeeyaan iyagoo diraya garaaca wadnaha gaagaaban ka dibna cabir waqtiga ay qaadanayso in garaaca wadnaha uu u safro bartilmaameedka iyo dib ugu laabashada qaataha. Cabbirkan safarka ah ee safarka ayaa ka caawisa go'aaminta masaafada bartilmaameedka. Tusaalaha waxaa lagu muujiyey jaantus halka ay mucjisooyin yihiin labada calaamad ee iftiinka la isugu gudbiyo (at) iyo seenyaalaha iftiinka (ar) ayaa la soo bandhigay. Sinnaanta aasaasiga ah ee loo adeegsaday nidaamkan waxaa ku jira xawaaraha iftiinka (c) iyo masaafada bartilmaameedka (r), u oggolaanaya nidaamka inuu xisaabiyo masaafada ku saleysan muddada ay u qaadanayso iftiinka inuu soo laabto.
Soo laabashada Discrete iyo Cabbirka mararka oo buuxa iyadoo la adeegsanayo hawada hawada.
Nidaamka hawada ee caadiga ah ee hawada.
Nidaamka cabirku ee Liidar, oo tixgeliya labada qalabka wax baara iyo astaamaha bartilmaameedka, waxaa ku soo koobay isleegyada caadiga ah ee isleegyada Liidar. Isla'egtan waxaa laga soo qaatay isleegyada Radaxa waxayna aasaas u tahay fahamka sida nidaamyada LEARAR ay u xisaabiyaan masaafada. Waxay sharraxaysaa xiriirka ka dhexeeya awoodda la kala qaado (PT) iyo awoodda seenyaalaha la helay (PR). Muhiimad ahaan, isla'egta waxay gacan ka geysaneysaa inta iftiinka la isugu gudbiyo lagu soo celiyo qaataha ka dib markii uu ka tarjumayo bartilmaameedka, kaasoo muhiim u ah go'aaminta masaafada iyo abuurista khariidado sax ah. Xiriirkaani wuxuu la tixgalinayaa qodobbada sida muuqaalka seenyaalaha sababtuna tahay masaafada iyo is-dhexgalka dusha sare ee bartilmaameedka.
Codsiyada dareenka lidka fog
Leidar Xasaasiyadda ayaa leh codsiyo badan oo ku baahsan dhammaan qaybaha kala duwan:
Dhul iyo khariidaynta topographic-ga ee abuurista noocyada sare ee xallinta dhijital sare (dems).
Khariidadda kaymaha iyo dhirta ee qaab dhismeedka dhirta ee lagu sameeyo qaab dhismeedka dhirta iyo biopss.
Khariidaynta xeebaha iyo xeebta xeebta ee la socodka nabaad-guurka iyo isbedelka heerka badda.
Qorsheynta magaalooyinka iyo qaabaynta kaabayaasha, oo ay ku jiraan dhismayaasha iyo shabakadaha gaadiidka.
Diiwaangelinta dhaqanka iyo dhaxalka dhaqanka ee goobaha taariikhiga ah iyo farshaxanka.
Sahaminta juqraafiska iyo macdanta ee loogu talagalay qaababka dusha sare ee khariidaynta iyo hawlgallada kormeerka.
Gawaarida iskeed u madaxbannaanida iyo ogaanshaha caqabadda.
Sahaminta meeshuu ah, sida khariidaynta dusha sare ee Mars.
Ma u baahan tahay wada jir bilaash ah?
Kheyraadka LEARAR:
Liiska aan dhameystirneyn ee ilaha macluumaadka ee Liidad iyo software bilaash ah ayaa lagu bixiyaa hoos-u-dhigyada macluumaadka.
1.Fursoprography furanhttp://www.opentopogy.org
2.USGS Dhulka Earkorthttp://earthexplorer.usgs.gov
3.Dowladaha Mareykankahttps:///coast.noaa.gov/ Action /
4.Maamulka Qaranka ee Badweynta iyo Hawada (NOAA)Coasttttstts: //www..gotaa.gov/dataviewer/#
5.Wikipedia lidarhttps://en.wikipedia.org/wiki/national_lidar_dataset_ ahaa_stas_states)
6.Liir khadka tooska ahhttp://www.lidar-online.com
7.Shabakadda Kormeerka Qaranka ee loo yaqaan 'Neon'http://www.co oristory.org/data-resours/geget-Datavavarate -mate-Data
8.Xogta Liidha ee waqooyiga Spainhttp://b5m.gipuzkoa.net/url5000/en/G_22485/publifli&consuntlaar=hazlidar
9.Xogta Liidha ee Boqortooyada Ingiriiskahttp://catalogue.eqraa.AstA.AstA.ac.uk/ Liiska /? Dib u soo celinta_obj = OB & ID = 8049, 8051, 8051, 8051
Xilka Liidar bilaashka ah:
1.Waxay u baahan tahay hinaas. http://bcal.geology.isu.edu/ samafals.shtml
2.Fughvower(Liidhka iyo xogta kale ee Ride / Vector) http://www.furoviewer.com/
3.Fusion / LDV(LIDAR xogta aragga, beddelka, iyo falanqaynta) http: // forsys.cfr.washington.edu/fiation
4.Qalabka las(Xeerka iyo softiweerka loogu talagalay akhriska iyo qorista Las FI LES) http: // www.cs.enuc.edu/~isenburg/lastool/lastool/lastool/
5.Lautlity(Qayb ka mid ah tamarta Gui ee loogu talagalay aragga iyo beddelka lasci ee Las FI Les) http://home.iitk.ac.in/~blohani/lastutility.html
6.Liblas(C / c + + maktabadda akhriska / qorista qaabka Las) http://www.liblas.org/
7.Mcc-lilar(Isugeynta iskeelka badan ee kala-goynta kala-goynta ee LIdar) http:
8.Mars Freview.
9.Si buuxda u falanqeeyso(Isha furan ee Software-ka ee lagu farsameeyo oo lagu sawiro daruuraha likeroolka iyo wajahyada) http://ffurlanivaling.sourceforgege.net/
10.Dhibic sixir daruur ah (A set of software tools for LiDAR point cloud visualiza-tion, editing, filtering, 3D building modeling, and statistical analysis in forestry/ vegetation applications. Contact Dr. Cheng Wang at wangcheng@radi.ac.cn)
11.Akhristaha deg-degga ah ee dhulka(Aragga ee daruuraha 'lilar') http://applimagery.com/ soydowgagery aalado dheeraad ah oo kumbuyuutareed waxaa laga heli karaa websaydhka Tooska ah ee LEDRPorography ee http://opentopopopopo.sdsc.edu/Tools/Lilstool/LestTools.
Mahadnaq
- Qodobkaani wuxuu ka kooban yahay cilmi baarista "Leidar Finandegga iyo Codsiyada" ee Vinícius Gumarães, 2020. Maqaalka buuxa ayaa la heli karaaHalkan.
- Liiskan dhameystiran iyo sharraxaad faahfaahsan oo ku saabsan ilaha xogta Liidad iyo softiweerka bilaashka ah wuxuu bixiyaa aalad muhiim u ah xirfadlayaasha iyo cilmi-baarayaashu duurka ka fog ee falanqaynta iyo falanqaynta juquraafi ahaaneed.
Afeef:
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- Haddii aad aamminsan tahay in mid ka mid ah waxa ku jira waxa ku jira ee loo adeegsado ku xadgudbida xuquuqdaada daabacaadda, fadlan nala soo xiriir. Waxaan diyaar u nahay inaan qaadno tillaabooyin ku habboon, oo ay kujirto ka saarida sawirrada ama la siinayo sahlo habboon, si aan u hubinno u hoggaansanaanta sharciyada hantida iyo qawaaniinta caqliga leh. Hadafkayagu waa inaan joogteynno goob hodan ah waxa ku jira, cadaalad ah, iyo ixtiraamka dadka kale ee xuquuqda hantida aqooneed.
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Waqtiga Post: apr-16-2024