Musiyano uripo pakati pe850nm uye 940nm LEDs

Kuvhima makamerachave chishandiso chakakosha chevavhimi uye vanofarira mhuka dzesango, zvichivabvumira kutora mifananidzo yemhando yepamusoro uye mavhidhiyo emhuka dzesango munzvimbo yavo yechisikigo.Chimwe chezvinhu zvakakosha zvekamera yekuvhima ndeye infrared (IR) LED, iyo inoshandiswa kuvhenekera nzvimbo munzvimbo ine mwenje wakadzika pasina kuzivisa mhuka kuvepo kwekamera.Kana zvasvika pakuvhima makamera, maviri akajairika marudzi eIR LEDs ndiwo 850nm uye 940nm LEDs.Kunzwisisa mutsauko pakati pemhando mbiri idzi dze LED kwakakosha pakusarudza iyo chaiyokamera yemutambo kune zvaunoda chaizvo.

Musiyano wekutanga pakati pe850nm ne940nm maLEDs uri mukureba kwechiedza che infrared chavanoburitsa.Urefu hwechiedza hunoyerwa mumananometers (nm), ne850nm uye 940nm zvichireva huwandu hweiyo infrared spectrum.Iyo 850nm LED inoburitsa mwenje unooneka zvishoma kuziso remunhu, uchiita senge kupenya kutsvuku kudiki murima.Kune rimwe divi, iyo 940nm LED inoburitsa mwenje isingaonekwe zvachose neziso remunhu, ichiita kuti ive yakanakira kuongororwa kwepachivande uye kutarisa mhuka dzesango.

Mukutaura, sarudzo iri pakati pe850nm ne940nm LEDs zvinoenderana nekushandiswa chaiko kwekamera yekuvhima.Kune vavhimi vanoda kutarisa nzira dzemitambo uye zviitiko zvemhuka dzesango pasina kukanganisa mhuka, iyo 940nm LED ndiyo inosarudzwa sarudzo.Chiedza chayo chisingaonekwi chinovimbisa kuti kamera inoramba isingaonekwe, zvichibvumira kuti mamwe echisikigo uye echokwadi maitiro emhuka dzesango atorerwe pakamera.Pamusoro pezvo, iyo 940nm LED hainyanyi kukanganisa mhuka dzehusiku, zvichiita kuti ive sarudzo yakanaka yekutora mifananidzo nemavhidhiyo ezvisikwa zvisingaoneki zvehusiku.

Kune rimwe divi, iyo 850nm LED inogona kuve yakakodzera kune yakajairika yekutarisa uye kuchengetedza zvinangwa.Nepo ichiburitsa kupenya kutsvuku kusinganyatsoonekwe nevanhu, inogona kuonekwa nedzimwe mhuka dzine maonero akakwirira ehusiku, semamwe marudzi emhembwe.Naizvozvo, kana chinangwa chekutanga chiri chekudzivisa vanodarika kana kutarisa nzvimbo nekuda kwekuchengetedza, iyo 850nm LED inogona kunge iri sarudzo iri nani nekuda kwechiedza chayo chinooneka zvishoma.

Izvo zvakakosha kuti uzive kuti sarudzo iri pakati pe850nm uye 940nm LEDs zvakare inokanganisa huwandu uye kujeka kweiyo kamera yekuona husiku kugona.Kazhinji, 850nm LEDs dzinopa kuvhenekera kuri nani uye kureba kureba zvichienzaniswa ne940nm LEDs.Nekudaro, mutsauko muhuwandu haushoma, uye kutengeserana-kubvisa kwekuwedzera kusaonekwa ne940nm maLEDs anowanzopfuura mukana mudiki muhuwandu hunopihwa ne850nm LEDs.

Mukupedzisa, mutsauko uripo pakati pe850nm uye 940nm maLED mumakamera ekuvhima anovira kusvika pakuonekwa uye kusaonekwa.Nepo iyo 850nm LED ichipa kupenya kuri nani zvishoma uye huwandu, iyo 940nm LED inopa kusaoneka kuzere, zvichiita kuti ive sarudzo inosarudzika yekutarisa mhuka dzesango uye nekuvanda kuongorora.Kunzwisisa izvo chaizvo zvinodiwa zvekuvhima kwako kana kuongorora zvaunoda kuchakubatsira iwe kuita sarudzo ine ruzivo paunosarudza pakati pemhando mbiri idzi dzema LEDs ako.makamera emhuka dzesango.