Nigute ushobora guhitamo kamera yumutekano nijoro?

Waba ushaka kamera yumutekano wijoro cyangwa kamera yumutekano wo hanze, sisitemu yuzuye, yateguwe neza biterwa no guhitamo kamera yumutekano nziza kandi nziza.Itandukaniro ryibiciro hagati yinjira-urwego rwohejuru rwamabara ya kamera kamera irashobora kuva kumadorari 200 kugeza $ 5,000.Kubwibyo, kamera nibindi bikoresho (nk'amatara ya IR, lens, ibipfukisho birinda, hamwe nibikoresho bitanga ingufu) bigomba gusuzumwa neza mbere yo guhitamo icyitegererezo cyo guhitamo.

Ibice bikurikira bitanga umurongo ngenderwaho kubyo ugomba gusuzuma mbere yo guhitamo no gushiraho kamera yumutekano mucye.

Witondere aperture ya kamera

Ingano ya aperture igena ingano yumucyo ushobora kunyura mumurongo kandi ukagera kumashusho yerekana amashusho - aperture nini zituma abantu benshi bagaragara, mugihe bito byemerera kutagaragara.Ikindi kintu gikwiye kwitonderwa ni lens, kuko uburebure bwibanze hamwe nubunini bwa aperture buringaniye.Kurugero, lens ya 4mm irashobora kugera kuri aperture ya f1.2 kugeza kuri 1.4, mugihe lens ya 50mm kugeza 200mm ishobora gusa kugera kuri aperture ntarengwa ya f1.8 kugeza 2.2.Ibi rero bigira ingaruka kumyerekano kandi, iyo ikoreshejwe hamwe na IR muyunguruzi, ibara ryukuri.Umuvuduko wihuta nawo ugira ingaruka kumucyo ugera kuri sensor.Umuvuduko wamafoto yumutekano wijoro ugomba kubikwa kuri 1/30 cyangwa 1/25 kugirango ukurikiranwe nijoro.Kugenda gahoro kurenza ibi bizavamo guhubuka no gutuma ishusho idakoreshwa.

Kamera yumutekano byibuze urwego rwo kumurika

Urwego ntarengwa rwo kumurika kamera yerekana urwego ntarengwa rwo kumurika aho rwerekana amashusho / amashusho meza.Abakora kamera bagaragaza agaciro gake cyane kuri aperture zitandukanye, nacyo kikaba ari kumurika cyane cyangwa sensibilité ya kamera.Ibibazo bishobora kuvuka mugihe kamera ntarengwa yo kumurika kamera iri hejuru yumurongo wa infragreur.Muri iki gihe, intera igaragara izagira ingaruka kandi ishusho yavuyemo izaba imwe murwego rwaka ruzengurutse umwijima.

Mugihe cyo gushyiraho amatara na IR yamurika, abayashiraho bagomba kwitondera uburyo amatara ya IR atwikira agace kagomba gukurikiranwa.Itara ridafite urumuri rishobora kuva kurukuta no guhuma kamera.

Ingano yumucyo kamera ibona nikindi kintu gishobora guhindura cyane imikorere ya kamera.Nka ihame rusange, urumuri rwinshi rungana nishusho nziza, igenda iba ingirakamaro kure cyane.Kubona ishusho nziza-isaba bihagije byubatswe mumucyo wa IR, ukoresha imbaraga nyinshi.Muri iki gihe, birashobora kubahenze gutanga urumuri rwa IR kugirango rushyigikire imikorere ya kamera.

Kugirango uzigame imbaraga, amatara ya sensor-yerekana (urumuri-rukora, rukora-rukora, cyangwa rukoresha ubushyuhe) rushobora gutwikwa gusa mugihe urumuri rwibidukikije ruguye munsi yurwego rukomeye cyangwa mugihe umuntu yegereye sensor.

Amashanyarazi yimbere-sisitemu yo kugenzura agomba guhuzwa.Iyo ukoresheje itara rya IR, ibintu ugomba gusuzuma birimo itara rya IR, IR LED, hamwe nubu na voltage yumuriro w'amashanyarazi.Intera ya kabili nayo igira ingaruka kuri sisitemu, nkuko ikigezweho kigabanuka nintera yagenze.Niba hari amatara menshi ya IR kure yumurongo wa moteri, ukoresheje amashanyarazi hagati ya DC12V birashobora gutuma amatara yegereye isoko yumuriro aba arenze voltage, mugihe amatara kure ari make.Nanone, ihindagurika rya voltage rishobora kugabanya ubuzima bwamatara ya IR.Mugihe kimwe, iyo voltage iba mike cyane, irashobora guhindura imikorere kubera urumuri rudahagije hamwe nintera yo guta idahagije.Kubwibyo, amashanyarazi ya AC240V arasabwa.

Kurenza gusa ibisobanuro na datasheets

Ikindi gitekerezo gikunze kugaragara nukugereranya imibare nibikorwa.Abakoresha ba nyuma bakunda kwishingikiriza cyane kuri datasheets ya kamera mugihe bahisemo kamera yo kureba nijoro.Mubyukuri, abakoresha akenshi bayobywa na datasheets bagafata ibyemezo bishingiye kubipimo aho gukora kamera nyayo.Keretse ugereranije moderi ziva mubakora kimwe, datasheet irashobora kujijisha kandi ntacyo ivuga kubijyanye nubwiza bwa kamera cyangwa uko izakora mumashusho, inzira yonyine yo kwirinda ibi nukureba uko kamera ikora mbere yo gufata icyemezo cyanyuma.Niba bishoboka, nibyiza gukora ikizamini cyo murwego rwo gusuzuma kamera zishobora kureba no kureba uko zikorera mukarere kumanywa nijoro.