Tej thaj chaw deb Sensing Mapping

Tej thaj chaw deb Sensing Mapping

LiDAR Laser Solutions Hauv Chaw Taws Teeb Pom Kev

Taw qhia

Txij li thaum lig 1960s thiab thaum ntxov 1970s, feem ntau cov tsoos aerial photography systems tau hloov los ntawm huab cua thiab aerospace electro-optical thiab hluav taws xob sensor systems. Thaum kev yees duab huab cua ib txwm ua haujlwm feem ntau hauv qhov pom-lub teeb wavelength, niaj hnub airborne thiab hauv av-raws li cov chaw taws teeb sensing systems tsim cov ntaub ntawv uas npog lub teeb pom kev, reflected infrared, thermal infrared, thiab microwave spectral cheeb tsam. Cov txheej txheem kev txhais lus pom hauv cov duab saum huab cua tseem yuav pab tau. Txawm li cas los xij, kev paub txog tej thaj chaw deb suav nrog ntau yam kev siv, suav nrog cov haujlwm ntxiv xws li theoretical modeling of target properties, spectral measurements of objects, and digital image analysis for information extraction.

Kev paub txog tej thaj chaw deb, uas yog hais txog txhua yam ntawm kev tsis sib cuag mus ntev-ntev, yog ib txoj hauv kev uas siv electromagnetism los ntes, sau thiab ntsuas cov yam ntxwv ntawm lub hom phiaj thiab cov ntsiab lus tau hais thawj zaug hauv 1950s. Lub teb ntawm kev paub txog tej thaj chaw deb thiab daim ntawv qhia, nws tau muab faib ua 2 hom kev paub: nquag thiab passive sensing, uas Lidar sensing yog active, muaj peev xwm siv nws tus kheej lub zog kom emit lub teeb rau lub hom phiaj thiab ntes lub teeb reflected los ntawm nws.

 Active Lidar Sensing thiab Application

Lidar (lub teeb pom kev thiab sib txawv) yog ib qho cuab yeej uas ntsuas qhov deb raws li lub sij hawm ntawm emitting thiab tau txais cov teeb liab laser. Qee lub sij hawm Airborne LiDAR yog siv sib hloov nrog lub tshuab laser scanning, daim ntawv qhia, lossis LiDAR.

Qhov no yog ib daim ntawv qhia uas qhia txog cov kauj ruam tseem ceeb ntawm kev ua cov ntaub ntawv thaum lub sij hawm LiDAR siv. Tom qab sau cov (x, y, z) kev tswj hwm, txheeb xyuas cov ntsiab lus no tuaj yeem txhim kho cov txiaj ntsig ntawm cov ntaub ntawv rendering thiab ua haujlwm. Ntxiv nrog rau kev ua cov duab geometric ntawm LiDAR cov ntsiab lus, cov ntaub ntawv siv los ntawm LiDAR cov lus tawm tswv yim kuj tseem siv tau.

Lidar flow chart
tsummers_Terrain_thermal_map_Drone_Laser_beam_vetor_d59c3f27-f759-4caa-aa55-cf3fdf6c7cf8

Hauv txhua daim ntawv thov kev paub txog tej thaj chaw deb thiab daim ntawv qhia, LiDAR muaj qhov zoo sib xws ntawm kev tau txais kev ntsuas qhov tseeb dua tsis muaj hnub ci thiab lwm yam huab cua cuam tshuam. Ib qho kev ntsuas tej thaj chaw deb muaj ob qhov chaw, lub laser rangefinder thiab ntsuas ntsuas rau qhov chaw, uas tuaj yeem ntsuas thaj chaw ib puag ncig hauv 3D yam tsis muaj geometric distortion vim tias tsis muaj duab cuam tshuam (lub ntiaj teb 3D yog duab hauv 2D dav hlau).

QHOV CHAW UA HAUJ LWM

Qhov muag-kev nyab xeeb LiDAR Laser Source Xaiv rau sensor