Nokuba ujonge ikhamera yokhuseleko lombono ebusuku okanye ikhamera yokhuseleko yangaphandle ye-infrared, inkqubo epheleleyo, eyilwe kakuhle ixhomekeke ekukhetheni eyona khamera yokhuseleko lombono ebusuku.Umahluko weendleko phakathi kwenqanaba lokungena kunye neekhamera zombono wobusuku obuphezulu zinokuvela kwi-200 yeedola ukuya kwi-5,000 yeedola.Ke ngoko, ikhamera kunye nezinye iiperipherals (ezifana nezibane ze-IR, iilensi, izigqubuthelo zokhuselo, kunye nokubonelela ngombane) kufuneka ziqwalaselwe ngokupheleleyo phambi kokuba kuthathwe isigqibo sokuba yeyiphi imodeli oza kuyikhetha.
La macandelo alandelayo abonelela ngezikhokelo malunga nento omawuyiqwalasele phambi kokuba ukhethe kwaye ufake ikhamera yokhuseleko enokukhanya okuphantsi.
Nika ingqalelo kwindawo yokuvula ikhamera
Ubungakanani be-aperture bunquma ubungakanani bokukhanya obunokudlula kwi-lens kwaye bufikelele kwi-sensor yesithombe-i-apertures enkulu ivumela ukubonakaliswa okungaphezulu, ngelixa ezincinci zivumela ukubonakaliswa okuncinci.Enye into ekufanele iqatshelwe yi-lens, kuba ubude befocal kunye nobukhulu bokungena kuhambelana ngokuphambeneyo.Ngokomzekelo, i-lens ye-4mm inokufikelela kwi-aperture ye-f1.2 ukuya kwi-1.4, ngelixa i-lens ye-50mm ukuya kwi-200mm inokufikelela kuphela kwi-aperture ephezulu ye-f1.8 ukuya kwi-2.2.Ke oku kuchaphazela ukuvezwa kwaye, xa kusetyenziswe izihluzi ze-IR, ukuchaneka kombala.Isantya sokuvala sikwachaphazela isixa sokukhanya esifikelela kwinzwa.Isantya seshutha yeekhamera zokhuseleko lombono ebusuku kufuneka sigcinwe kwi-1/30 okanye i-1/25 yokubeka iliso ebusuku.Ukuhamba kancinci kunolu kuya kubangela ukufiphala kwaye wenze umfanekiso ungasebenziseki.
Ikhamera yokhuseleko inqanaba elincinci lokukhanya
Inqanaba lokukhanya elisezantsi lekhamera yokhuseleko lichaza ubuncinci bemeko yokukhanya apho irekhoda ividiyo/imifanekiso esemgangathweni obonakalayo.Abavelisi bekhamera bachaza elona xabiso lisezantsi lokuvula kwimibhobho eyahlukeneyo, ekwayeyona khanyisa isezantsi okanye ubuntununtunu bekhamera.Iingxaki ezinokwenzeka zinokuvela ukuba isantya sokukhanya esisezantsi sekhamera siphezulu kunesibane sesikhanyisi se-infrared.Kule meko, umgama osebenzayo uya kuchaphazeleka kwaye umfanekiso ophumelayo uya kuba ngomnye weziko eliqaqambileyo elijikelezwe bubumnyama.
Xa useta izibane kunye nezikhanyisi ze-IR, abafakeli kufuneka banikele ingqalelo kwindlela izibane ze-IR zigubungela ngayo indawo ekufuneka ibekwe esweni.Isibane se-infrared sinokutsiba ezindongeni kwaye siyimfamekise ikhamera.
Isixa sokukhanya esifunyanwa yikhamera yenye into enokuchaphazela kakhulu ukusebenza koluhlu lwekhamera.Njengomgaqo oqhelekileyo, ukukhanya okungaphezulu kufana nomfanekiso ongcono, oye ubaluleke ngakumbi kumgama omkhulu.Ukufumana umfanekiso okumgangatho ophezulu kufuna ukukhanya okwaneleyo okwakhiweyo kwi-IR, edla amandla amaninzi.Kule meko, kunokubiza kakhulu ukubonelela ngokukhanya okongeziweyo kwe-IR ukuxhasa ukusebenza kwekhamera.
Ukugcina amandla, izibane ezibangelwa yi-sensor (ukukhanya-kusebenze, ukunyakaza-ukusebenza, okanye ukuvalelwa kwe-thermal) kunokusetwa kumlilo kuphela xa ukukhanya kwe-ambient kuwa ngaphantsi kwinqanaba elibalulekileyo okanye xa umntu esondela kwi-sensor.
Unikezelo lwamandla olungaphambili lwenkqubo yokubeka iliso kufuneka ludityaniswe.Xa usebenzisa ukukhanyisa kwe-IR, izinto ezinokuthi ziqwalaselwe ziquka isibane se-IR, i-IR LED, kunye ne-current and voltage of the power supply.Umgama wentambo uchaphazela inkqubo, njengoko ikhoyo iyancipha kunye nomgama ohanjiweyo.Ukuba kukho izibane ze-IR ezininzi ezithe qelele kumbhobho oyintloko, ukusebenzisa umbane osembindini we-DC12V kunokubangela ukuba izibane ezikufutshane nomthombo wamandla zibe nombane omninzi, lo gama izibane ezikude zibuthathaka.Kwakhona, ukuguquguquka kwamandla ombane kunokunciphisa ubomi bezibane ze-IR.Kwangaxeshanye, xa i-voltage iphantsi kakhulu, inokuchaphazela ukusebenza ngenxa yokukhanya okunganelanga kunye nomgama ongonelanga wokuphosa.Ke ngoko, umbane we-AC240V uyacetyiswa.
Ngaphezulu kwee-specs kunye nee-database
Enye impazamo eqhelekileyo kukulinganisa amanani kunye nokusebenza.Abasebenzisi bokugqibela bakholisa ukuthembela kakhulu kwiinkcukacha zekhamera xa bethatha isigqibo sokuba yeyiphi ikhamera yombono wasebusuku ekufuneka iphunyezwe.Ngapha koko, abasebenzisi bahlala belahlekiswa zii-database kwaye benze izigqibo ezisekelwe kwiimethrikhi kunokusebenza kwekhamera okwenyani.Ngaphandle kokuba uthelekiso lweemodeli zomenzi ofanayo, i-database inokulahlekisa kwaye ayithethi nto malunga nomgangatho wekhamera okanye indlela eya kwenza ngayo kwindawo, ekuphela kwendlela yokuphepha oku kukubona indlela ikhamera isebenza ngayo ngaphambi kokwenza isigqibo sokugqibela .Ukuba kuyenzeka, luluvo oluhle ukwenza uvavanyo lwasendle ukuvavanya iikhamera ezinokubakho kwaye ubone indlela eziqhuba ngayo kwindawo emini nasebusuku.
Ixesha lokuposa: May-07-2022