Emkhakheni wobuchwepheshe besimanje bokulinganisa, ama-laser rangefinder namadivayisi e-GPS angamathuluzi amabili asetshenziswa kakhulu. Kungakhathaliseki ukuthi kumayelana nohambo lwangaphandle, amaphrojekthi okwakha, noma igalofu, ukulinganisa ibanga okunembile kubalulekile. Kodwa-ke, abasebenzisi abaningi babhekene nenkinga lapho bekhetha phakathi kwe-laser rangefinder nedivayisi ye-GPS: iyiphi efanelana kahle nezidingo zami? Lesi sihloko sizoqhathanisa kokubili kusukela emibonweni yokunemba, izimo ezifanele, ukuzivumelanisa nezimo zemvelo, nokuningi, sikusize wenze isinqumo esinolwazi.
1. Izimiso Eziyinhloko: Umehluko Obalulekile Phakathi Kwalezi Zindlela Zobuchwepheshe Ezimbili
I-laser rangefinder inquma ibanga ngokukhipha i-laser pulse bese ibala isikhathi esithathayo ukuze ukukhanya kubuye ngemva kokukhombisa kude nethagethi. Ukunemba kwayo kungafinyelela ezingeni lamamilimitha futhi ilungele ukulinganisa okusheshayo nokunembile ngaphakathi kwebanga elifushane (ngokuvamile amamitha ayi-100-1500), kuye ngomugqa wokubona ongavinjelwe.
Ngakolunye uhlangothi, i-GPS ibala izixhumanisi zendawo ngokwamukela izimpawu zesathelayithi bese ithola idatha yebanga ngokusekelwe ekuguqulweni kwalezi zixhumanisi. Inzuzo yayo ukuthi ayidingi umugqa oqondile wokubona okuqondiwe futhi ingamboza amabanga omhlaba wonke. Kodwa-ke, ithintwa kakhulu amandla esignali, izimo zezulu, kanye nezithiyo ezifana nezakhiwo.
2. Ukuqhathanisa Ukusebenza Okubalulekile
① Ukunemba Kokulinganisa
Ama-rangefinder e-laser, ngaphansi kwezimo ezifanele (akukho ukuphazamiseka kokukhanya okunamandla, ukubonakaliswa okuhle kwethagethi), angafinyelela ukunemba okusukela ku-±1 mm kuya ku-±1 cm, okwenza kube ukukhetha okuthandwayo kwamasimu akhethekile njengokuhlola ukwakhiwa kanye nomklamo wangaphakathi. Ngokuphambene nalokho, ukunemba kwamadivayisi e-GPS ebanga labathengi ngokuvamile kuhluka kusuka kumamitha angu-1 kuya kwangu-5, futhi kungathinteka kakhulu ukusatshalaliswa kwesathelayithi kanye nokubambezeleka kwesignali. Ngisho nangobuchwepheshe be-GPS (DGPS) obuhlukile, ukunemba akunakwenzeka ukuthi kuphule isithiyo sezinga lemitha. Ngakho-ke, uma ufuna ukunemba okuphezulu, i-rangefinder ye-laser iyona engcono kakhulu.
② Ukuzivumelanisa Nezimo Kwezemvelo
Ama-rangefinder e-laser adinga indlela engavinjelwe eya kwelitshe, futhi ukusebenza kwawo kungase kwehle ezimweni ezifana nemvula, iqhwa, inkungu, noma ukukhanya okukhanyayo okungenza buthaka ukubonakaliswa kwe-laser. Amadivayisi e-GPS asebenza kahle ezindaweni ezivulekile, kodwa angalahlekelwa isignali emagqumeni asemadolobheni, emihubheni, noma emahlathini aminyene. Ngakho-ke, ezindaweni eziyinkimbinkimbi noma ezimweni ezikude, i-GPS inikeza ukuguquguquka okwengeziwe.
③ Ukusebenza kanye Nokunwebeka
Ama-rangefinder e-laser akhethekile ekulinganiseni ibanga, ukuphakama, nama-engeli, kanti amanye amamodeli aphezulu anikeza izici ezifana nokubalwa kwendawo/ivolumu kanye nokudluliswa kwedatha ye-Bluetooth. Ngokuphambene nalokho, amadivayisi e-GPS anikeza imisebenzi eyengeziwe njengokuhlela umzila wokuzulazula, ukulinganisa ukuphakama, kanye nokulandelela izindlela zokuhamba, okwenza zifanelekele uhambo lwangaphandle noma ukuzulazula kwezimoto. Ngakho-ke, ezimweni ezinezidingo eziningi, i-GPS inikeza inani eliphelele.
3. Izimo Zokusebenza Ezinconyiwe
| Isimo | Ithuluzi Elinconyiwe | Ukubonisana |
| Ucwaningo Lwendawo Yokwakha | I-Laser Rangefinder | Ukunemba okuphezulu kanye nokulinganisa okusheshayo kobude bodonga noma ukuphakama kwephansi, akukho ukuthembela kumasignali e-satellite. |
| Indawo yokudlala igalofu | I-Laser Rangefinder + i-GPS | I-laser rangefinder ithola ngokunembile amabanga e-flagstick, kuyilapho i-GPS inikeza amamephu agcwele kanye nolwazi lwezithiyo (isb., izithiyo zesihlabathi, izingozi zamanzi). |
| Ukuhamba ngezinyawo/ukuzijabulisa kwangaphandle | Idivayisi ye-GPS | Ukubeka indawo ngesikhathi sangempela, ukulandelela umzila, kanye nezici zokuzulazula ezibuyayo kuqinisekisa ukuphepha futhi kuvimbele ukulahleka. |
| Ucwaningo Lomhlaba Wezolimo | I-RTK GPS | Isekela ukulinganiswa kwendawo enkulu yamapulazi kanye nokumaka umngcele, isebenza kahle kakhulu kunemishini ye-laser. |
4. Ungakhetha Kanjani?
Isinqumo sincike kakhulu ezimpendulweni zemibuzo emithathu elandelayo:
① Ingabe udinga ukunemba kwezinga le-millimeter?
Uma kunjalo, khetha i-laser rangefinder.
② Ingabe ibanga lakho lokulinganisa lingaphezu kwe-1 km?
Uma kunjalo, khetha i-GPS noma inhlanganisela ye-GPS kanye ne-laser rangefinder.
③ Ingabe uyayisebenzisa ezindaweni eziyinkimbinkimbi?
Uma kunjalo, i-GPS ithembeke kakhulu, kodwa qiniseka ukuthi isignali ihlala izinzile.
Ngokuthuthuka kwezobuchwepheshe, izinhlelo ezihlanganisiwe ezihlanganisa i-LiDAR (Laser Detection and Ranging) kanye ne-GPS seziqalile ukusetshenziswa emikhakheni efana nokushayela okuzenzakalelayo kanye nokumapha kwezwe. Lawa madivayisi angathola ama-coordinate omhlaba wonke nge-GPS ngenkathi esebenzisa ukuskena kwe-laser ukukhiqiza amamodeli e-3D anembe kakhulu, okufeza izinzuzo ezimbili "zokubeka i-macroscopic + ukulinganisa kwe-microscopic." Kubasebenzisi abajwayelekile, ukukhetha amathuluzi ahlakaniphile asekela ukusebenzisana kwamamodi amaningi kungaba yindlela engcono kakhulu esikhathini esizayo.
Akukho ukuphakama okuphelele phakathi kwe-laser rangefinders namadivayisi e-GPS. Isihluthulelo ukuhambisana nezidingo zakho eziyinhloko. Uma udinga ukulinganisa ibanga elifushane okunembile nokuphumelelayo, i-laser rangefinder iyindlela oyithandayo. Ukuze uthole ukuzulazula ibanga elide noma ukubeka indawo eyinkimbinkimbi, amadivayisi e-GPS afaneleka kakhulu. Kubasebenzisi abangochwepheshe, ikhambi elihlanganisiwe elihlanganisa izinzuzo zakho zombili lingaba yimpendulo ephelele.
Isikhathi sokuthunyelwe: Mashi-20-2025