Lumispot na-enye mmesi obi ike dị elu na ọrụ ọrịre ahịa, nke mba, ụlọ ọrụ akọwapụtara, FDA na sistemu ogo CE kwadoro. Nzaghachi ndị ahịa ngwa ngwa yana nkwado ọrịre mgbe ọ gasịrị.
Debanye aha na Social Media anyị maka Biputere ngwa ngwa
Ihe mmetụta LiDAR ikukunwere ike weghara isi ihe dị iche iche site na pulse laser, nke a maara dị ka nha nlọghachi azụ, ma ọ bụ dekọọ akara ngosi zuru oke ka ọ na-alọghachi, nke a na-akpọ full-waveform, n'oge oge dị ka 1 ns (nke na-ekpuchi ihe dịka 15 cm). A na-ejikarị LiDAR na-efegharị efegharị zuru oke n'ọhịa, ebe nlọghachi azụ LiDAR nwere ngwa sara mbara n'ofe dị iche iche. Edemede a na-atụle nke ọma nloghachi LiDAR na ojiji ya. N'isiakwụkwọ a, anyị ga-ekpuchi ọtụtụ isi isiokwu gbasara LiDAR, gụnyere ihe ndị mejupụtara ya, ka o si arụ ọrụ, izi ezi ya, sistemụ na akụrụngwa dịnụ.
Ngwa ndị bụ isi nke LiDAR
Sistemu LiDAR dabere na ala na-ejikarị lasers nwere ogologo nm n'etiti 500-600 nm, ebe sistemụ LiDAR ikuku na-eji lasers nwere ogologo ogologo ogologo, sitere na 1000-1600 nm. Otu ọkọlọtọ LiDAR ikuku na-ebufe elu gụnyere nyocha laser, otu maka ịlele anya (nchịkọta ọnụ), yana sistemu maka njikwa, nleba anya na ndekọ. Ọ na-agụnye Sistemụ Ntụkwasị Obi Ụwa Dị Iche (DGPS) na Ngalaba Inertial Measurement Unit (IMU), na-etinyekarị n'ime otu usoro a maara dị ka usoro ọnọdụ na nhazi. Usoro a na-enye kpọmkwem ọnọdụ (longitude, latitude, na elu) na nghazi (mpịakọta, pitch, na isiokwu) data.
Usoro nke laser na-enyocha ebe ahụ nwere ike ịdịgasị iche, gụnyere zigzag, pallell, or elliptical paths. Ngwakọta nke data DGPS na IMU, yana data calibration na ịrị elu, na-enye ohere ka sistemụ ahụ hazie isi ihe laser anakọtara nke ọma. A na-ekenye isi ihe ndị a nhazi (x, y, z) na sistemụ nhazi mpaghara site na iji World Geodetic System of 1984 (WGS84) datum.
Kedu ka LiDARNhụta anyaNa-arụ ọrụ? Kọwaa n'ụzọ dị mfe
Sistemu LiDAR na-ewepụta mkpụ ọkụ laser ọsọ ọsọ gaa n'ihe ezubere iche ma ọ bụ elu.
Igwe ọkụ laser na-egosipụta na ebumnuche wee laghachi na ihe mmetụta LiDAR.
Ihe mmetụta ahụ na-atụ kpọmkwem oge ọ na-ewe maka pulse ọ bụla iji gaa na ebumnuche na azụ.
N'iji ọsọ nke ọkụ na oge njem, a na-agbakọ anya na ebumnuche.
Ejikọtara ya na ọnọdụ na nghazi data sitere na ihe mmetụta GPS na IMU, a na-ekpebi nhazi 3D ziri ezi nke echiche laser.
Nke a na-ebute oke igwe ojii 3D na-anọchite anya elu ma ọ bụ ihe a nyochara.
Ụkpụrụ anụ ahụ nke LiDAR
Sistemụ LiDAR na-eji ụdị lasers abụọ: pulsed na ebili mmiri na-aga n'ihu. Sistemụ LiDAR pulsed na-arụ ọrụ site na izipu obere ọkụ ọkụ wee tụọ oge ọ na-ewe maka pulse a iji gaa ebe ebumnuche wee laghachi na nnata. Ntụle oge njem a na-enyere aka ịchọpụta ebe dị anya na ebumnuche. Egosiri ọmụmaatụ na eserese ebe njupụta nke ma mgbama ọkụ ebufere (AT) na mgbama ọkụ enwetara (AR). Nhazi nke a na-eji na usoro a gụnyere ọsọ nke ọkụ (c) na ebe dị anya na ihe mgbaru ọsọ (R), na-ekwe ka usoro ahụ gbakọọ anya dabere na ogologo oge ọ na-ewe maka ọkụ ahụ ịlaghachi.
Nlaghachi nwere uche na nha ihu igwe zuru oke site na iji LiDAR ikuku.
Sistemu LiDAR na-ebufe ikuku.
Usoro nha na LiDAR, nke na-atụle ma ihe nchọpụta na njirimara nke ebumnuche, bụ nke ọkọlọtọ LiDAR chịkọtara. A na-emegharị nhata a site na nha nha radar ma bụrụkwa isi n'ịghọta ka sistemụ LiDAR si agbakọ anya. Ọ na-akọwa mmekọrịta dị n'etiti ike nke mgbaàmà ebutere (Pt) na ike nke mgbaàmà natara (Pr). N'ụzọ bụ isi, nha nha na-enyere aka n'ịkọwa ole ọkụ a na-ebunye na-eweghachite na onye nnata mgbe ọ tụgharịrị uche na ebumnuche, nke dị oke mkpa maka ịchọpụta ebe dị anya na ịmepụta maapụ ziri ezi. Mmekọrịta a na-eburu n'uche ihe ndị dị ka mbelata mgbaàmà n'ihi anya na mmekọrịta ya na elu ebumnuche.
Ngwa nke LiDAR Remote Sensing
LiDAR remote sensing nwere ọtụtụ ngwa n'ofe mpaghara dị iche iche:
Ala na maapụ topographic maka imepụta ụdị elu dijitalụ dị elu (DEMs).
Osisi ọhịa na nke ahịhịa ahịhịa iji mụọ usoro ahịhịa osisi na biomass.
Maapụ n'ụsọ oké osimiri na nke dị n'ikpere mmiri maka nlekota mbuze na mgbanwe ọkwa oke osimiri.
Atụmatụ ime obodo na imepụta akụrụngwa, gụnyere ụlọ na netwọk ụgbọ njem.
Nkà mmụta ihe ochie na akwụkwọ nketa ọdịnala nke saịtị akụkọ ihe mere eme na arịa.
Nyocha banyere ala na Ngwuputa maka ịsepụta atụmatụ elu na ọrụ nlekota oru.
Ụgbọ ala kwụụrụ onwe ya na nchọpụta ihe mgbochi.
Nchọgharị mbara ala, dị ka eserese elu Mars.
Achọrọ Consulation efu?
Akụrụngwa LiDAR:
Enyere ndepụta ezughị ezu nke isi mmalite data LiDAR yana sọftụwia efu n'okpuru. Isi mmalite data LiDAR:
1.Mepee Topographyhttp://www.opentopography.org
2.USGS Earth Explorerhttp://earthexplorer.usgs.gov
3.Ndekọ Mgbakọ Ọgbakọ nke United Stateshttps://coast.noaa.gov/ inventory/
4.National Oceanic and Atmospheric Administration (NOAA)Digital Coasthttps://www.coast.noaa.gov/dataviewer/#
5.Wikipedia LiDARhttps://en.wikipedia.org/wiki/National_Lidar_Dataset_(United_States)
6.LiDAR dị n'ịntanetịhttp://www.lidar-online.com
7.National Ecological Observatory Network—NEONhttp://www.neonscience.org/data-resources/get-data/airborne-data
8.Data LiDAR maka Northern Spainhttp://b5m.gipuzkoa.net/url5000/en/G_22485/PUBLI&consulta=HAZLIDAR
9.Data LiDAR maka United Kingdomhttp://catalogue.ceda.ac.uk/ list/?return_obj=ob&id=8049, 8042, 8051, 8053
Ngwanrọ LiDAR efu:
1.Achọrọ ENVI. http://bcal.geology.isu.edu/ Envitools.shtml
2.FugroViewer(maka LiDAR na data raster/vector ndị ọzọ) http://www.fugroviewer.com/
3.FUSION/LDV(Nhụta data LiDAR, ntụgharị na nyocha) http://forsys.cfr.washington.edu/fusion/fusionlatest.html
4.Ngwa LAS(koodu na ngwanrọ maka ịgụ na ide faịlụ LAS) http://www.cs.unc.edu/~isenburg/lastools/
5.LASUtility(Otu ngwa GUI maka ikiri na ntụgharị nke LASfiles) http://home.iitk.ac.in/~blohani/LASUtility/LASUtility.html
6.LibLAS(Ọbá akwụkwọ C/C++ maka ịgụ/ịdee usoro LAS) http://www.liblas.org/
7.MCC-LiDAR(Nhazi curvature ọtụtụ maka LiDAR) http://sourceforge.net/projects/mcclidar/
8.MARS FreeView(Nhụta 3D nke data LiDAR) http://www.merrick.com/Geospatial/Software-Products/MARS-Software
9.Nyochaa zuru oke(Ngwaọrụ mepere emepe maka nhazi na ịhụ anya igwe ojii na ụdị ebili mmiri LiDARpoint) http://fullanalyze.sourceforge.net/
10.Point Cloud Magic (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.Ọgụgụ Terrain ngwa ngwa(Visualization of LiDAR point clouds) http://appliedimagery.com/download/ Enwere ike ịchọta ngwaọrụ ngwanrọ LiDAR agbakwunyere na ibe weebụ Open Topography ToolRegistry na http://opentopo.sdsc.edu/tools/listTools.
Nkwenye
- Edemede a gụnyere nyocha sitere na "LiDAR Remote Sensing and Applications" nke Vinícius Guimarães, 2020. Ederede zuru ezu dị.Ebe a.
- Ndepụta a zuru oke na nkọwa zuru ezu nke isi mmalite data LiDAR na sọftụwia efu na-enye ngwa ọrụ dị mkpa maka ndị ọkachamara na ndị nyocha n'ọhịa nke nleba anya na nyocha mpaghara.
Nkwuputa:
- Anyị na-ekwupụta ugbu a na a nakọtara ụfọdụ onyonyo egosipụtara na webụsaịtị anyị na ịntanetị maka ịkwalite agụmakwụkwọ na ịkekọrịta ozi. Anyị na-asọpụrụ ikike ikike ọgụgụ isi nke ndị okike mbụ niile. Ebubeghi iji onyonyo ndị a maka uru azụmaahịa.
- Ọ bụrụ na ị kwenyere na nke ọ bụla n'ime ọdịnaya ejiri na-emebi ikike nwebiisinka gị, biko kpọtụrụ anyị. Anyị dị njikere ime ihe kwesịrị ekwesị, gụnyere iwepu onyonyo ma ọ bụ ịnye njiri mara nke ọma, iji hụ na nnabata na iwu na ụkpụrụ ikike ọgụgụ isi. Ebumnuche anyị bụ idowe usoro ikpo okwu bara ụba na ọdịnaya, ziri ezi na nkwanye ùgwù nke ikike ọgụgụ isi ndị ọzọ.
- Please contact us through the following contact information, email: sales@lumispot.cn. We promise to take immediate action upon receipt of any notice and guarantee 100% cooperation to resolve any such issues.
>> Ọdịnaya metụtara
Oge nzipu: Eprel 16-2024