Menene kyamarar UVC? Jagorar Fara

A fagen gani mai sakawa, kyamarorin UVC (aji na bidiyo na USB) sun zama kyamarar da aka zaɓa don yawancin na'urorin gani na ciki, suna dogara da babban bandwidth, abin dogaro da sauƙin haɗawa.
UVC kyamarori ne Hotunan USB daga cikin wani aiki na UVC standard, ya kamata 'USB video class', mai rubutu mai tsarin da ke dutsin daidai a cikin samfoti da aka samun bayan suna addadin kuma amfani da wannan gaba. Kuna so, yanzu, shi ne kamar hanyar samun saukon tsohon, augmented reality kuma samfoti 自动生成.
A cikin makala na hannun, mutum akan samun wannan aikin kuma magana da uvc kamera, kuma aka samun farko da UVC kuma MIPI.

An yi ba ha UVC protocol ba?

UVC (USB Video Class) protocol ya ne rubutu mai samun samfoti a cikin USB interface. Shi ne rubutu na alama da USB Implementers Forum (USB-IF), kuma gaikinsa ya ne aikin da aka samun daidai kuma samun hanyar samun samfoti digital camera devices kuma komputa.
Sunan kula a cikin UVC protocol ya ci gaba daga wannan suna ne yadda ake amfani da sabon wata da karfi mai gabatarwa. Dalilin shugaban laptop da smartphones suka sami UVC protocol. Dalilin video na UVC protocol suka iya aikacewa duk daidai a cikin alamunna ina jajahi da platformin hardware, ko son rubutu wannan drivers. Suna da aka yi a cikin sabon wata da online broadcasting da hanyar biyu.

Tarihi na UVC protocol da yadda ake amfani da

Fassara USB Video Class (UVC) protocol ya kasance masu aiki na video da standardinsa USB. Daga UVC 1.0 tare da versiya na tsarin daidai, UVC protocol ya kasance daidai don adapti da teknolojin nuna da talakaici na market, ake bincika halin, mai kyau da karfi na video transmission solutions.

Kuna fi nuna aikin da USB Video Class (UVC) 1.0 yana so da USB Implementers Forum (USB-IF) 2003. A cikin wannan shirin, wani suna ne ya yi amfani da rubutu kuma ya yi tsarin daidai don suke son ruwa mai hanyar video, an yana YUV da MJPEG, kuma ya yi abubuwan sabon gaskiya don tabbatar daidai na paramitaƙi mai tsarin daidai masu taimaka da kuma contrast dai dai a cikin alamun. Duk da wannan, USB-IF ya yi amfani da rubutu a cikin 1.0, ya yi support don rubutu mai hanyar HD (HD) video resolution kuma processing mai gabatar daidai a cikin alamun kuma daga wannan hanyar teknikai, kuma ya yi UVC1.1, wata tsarin UVC1.0 2005, wanda ya ne tsari major na protocol-UVC.

Duk da wannan, USB-IF ya yi amfani da rubutu don binciken kuma amfani da rubutu a cikin protocol, ya yi UVC version 1.5 2012. Ya yi support don rubutu mai hanyar H.264 video compression format, don suke son rubutu mai hanyar video, kuma ya yi support don multimedia synchronization, don suke son rubutu mai hanyar audio kuma video data.

Da fatan tsari da USB 3.x na USB 4.0, protocol UVC yana gabatar daidai don suna sabon fadamar gudanar da kawai cikakken latinsa. Suna daidai haɗin shi ne support don video ta hanyar saduwar talla (masalan 4K na 8K), saduwar frame talaka, da aikin fasalin kasarwa na ido. Wani hakuri, shi ne ya kamata daidai da kuma yi a cikin kamera na industrial, alamna na itace da virtual reality devices.

Da aikin na protocol UVC yana samun wannan wani process:
1. Kungiyar device: device yana kungiyar da host, da host yana iya rubuta device ba da USB enumeration.
2. Request descriptor: host yana request da parsin device descriptor, configuration descriptor, interface descriptor da endpoint descriptor.
3. Control transmission: host yana iya saita parametar video da iya haduwa mai device babban da control endpoint.
4. Data Transmission: Host yana iya samu data mai video frame da video streaming endpoint da iya wasuwa shi da application program.

Man shi UVC camera?

UVC camera (ya kirfi USB Video Class Camera), a cikin wannan, ya ne kamera USB mai so da UVC standard, ya yi amfani da bayan fayilai wataƙasa, kuma ya samu connection rubutuwa a cikin computer. version na gaba na USB Video Class specification ya ne UVC 1.5.

Daga cikin wannan shafi ne diagram ta application USB Video Class:

Ya kawo amfani da plug-and-play da compatibility na UVC standard. A cikakken duniya, ya ne solution mai gabatarwa ne affordability don transmission video real-time, ya kamataka a cikin video conferencing, live streaming kuma applications aiwan daidai.

Binciken kawai na UVC cameras

A cikin applications vision embedded, UVC cameras ya kasance wannan ne yanzu kamera mai amfani daidai kamar kamar kamar kai kai, haka binciken kawai na UVC cameras:

• Plug-and-play: Daga cikin sistemai wanda suna suporte UVC protocol (misali Windows, macOS, Linux, da haka), alamninta UVC zai iya yi amfani automatically da aka connected, bi ake kuma ba shi da aka install drivers additiona.
• Kusar gabatarwa: UVC protocol yana wannan standard open, da kuma mai gabatarwa device wanda ya kunne standard yana iya work daga cikin sistemai wanda suka suporte, yayi kusar gabatarwa na operability.
• Support video format standard: Su support formats video wide range wanne YUV, MJPEG, H.264, da haka.
• Fexibility: Fexibility-ina robust support resolutions video wide range, formats da frame rates, yayi amfani da negotiation bandwidth daga cikin devices to hosts.
• Bayanai low: Kuna ga cameras tare da kinds wadannan, UVC cameras yana affordable more tabbata.

Sistemai operation wanda suka iya use cameras UVC

Kuna fi nuna mai tsawo da UVC protocol, ya kawo shirin guda daga cikakken video capture devices. Kamera UVC za'a soya a matsayi na hanyar systema major domin.

• Windows: Windows 7 wannan da ke duniya ya kamata drivers UVC a kanƙwaye suka samu automatically da zuwa da saukar cameras UVC-compliant.
• macOS: macOS 10.4 Tiger wannan da ke duniya, amma wani yanzu versions Big Sur, Monterey ne Ventura, suka samu kamera UVC directly.
• Linux: Kernel Linux ya kawo support UVC devices starting version 2.6.26. Domin modern Linux distributions suka samu support wannan.
• Chrome OS: Chromebooks ne wani devices ga aka soya Chrome OS ya kawo support UVC cameras. System ya samu automatically da zuwa da saukar camera lokacin user ya yi connection.
• Android: Akwai Android kawai suna cikin aiki da UVC cameras zuwa idan yanzu USB OTG (On-The-Go). Aikin samarunna na farko da aka ba daidai ba ne UVC support (misali, samarunna kamara sabon gida) shi ke talaka da aikata UVC cameras.

Kadai, FreeBSD daga cikin sisteminsa gabatarwa (misali, Raspberry Pi) suka sona UVC devices, amma ya kan sha karatu mai wanda ake zama daidai ba daidai ba da aka saukar daidai drivers, ko ya kan sha karatu mai wanda ake zama daidai operating system daga cikin driver configuration.

Samari na farko da UVC cameras

Samarinsa taimakonya
Daga cikin samarinsa taimakonya, taushe hanyar, reproduction littafin rubutu, da cikakken imaging na UVC cameras ya kawo wannan abubuwan kuma daidai a samarinsa taimakonya mai tsarin rubutu da aka ba daidai resolution da speed.
Misali, daga cikin surgery na rubutu, UVC cameras za'a yi kawo zuwa endoscopes daga cikin aiki da equipment kuma ya kawo monitoring a cikin surgery area zuwa idan yanzu, ya kawo doktor a iya aiki da precision da ya kasance trauma.

Access Control Sabon Gida da Biometrics
Kamara UVC suka yi aiki data shirin kiyayya don tattabban gudanarwa biyu na wannan suna da yanzu. Suna za'a so da biyaye biometric don rubutun wajen, rubutun iris da rubutun dakkali don baya'i tattabban gudanarwa.
Misali, don hanyar hifadawa, suna sami rubutun dakkali teknoloji daidai don samun system bayyana access, saboda wannan UVC kamara suka rubuta shirin dakkali images don baya'i an kira mai karfi mai saita sake bada tabbata masu amfani da cikakken lokaci, don baya'i hifadawa da privacy.

Suransu Video
Kamara UVC suna yana amfani daidai don suransu video da monitoring. Sabon gaba, kuna son samun office ko lokaci halitta, kamara UVC suka yi aiki shirin fayilai.
Hanyar zuciya lowa-rawa excellent suka yi aiki 24/7 live surveillance don kira kuma kira mutum dai dai ya gabatar da wasu.

Rubutun da Za'a So Da UVC Camera Performance

Aiki kamara UVC yana sosai don labari da setting tambayoyi, ko factor hanyar, misali:
Lens: Kasa na kewaye a cikin rubutuwa suna yi aiki daidai a cikin tsarin fayilar da saukar rubutuwa.
Fuskar USB: Za'a iya gabatar da suwo da wani haɗa da fuskar USB 3.0, samanin da aka ba shi a kanƙafin guda da kasar daidai don baya masu kewayen kasar.
Tsanfiri: Za'a iya gabatar da hanyar da keɓe tsohon sanar da aka ba shi a kanƙafin guda da tsanfiri mai kyau don baya masu kewayen kasar, da nuna wannan da daga wannan.
Formatin Video: Iya buga formatin video mai so. MJPEG da H.264 ya kamata yin bayar daidai a cikin rubutun labari mai kyau.

Cika UVC da MIPI kamera

UVC da MIPI kamera ne yanzu daidai a cikin amfani da kamera a cikin amfani da vision embedded. Don gaba, suna ne kawai kamar da sabon rubutuwa, amma suna abubuwan daidai ne.
Kadai, a cikin misali na interface, kamera UVC suna iya abuwa USB interface don sabunta data, kamar MIPI cameras iya abuwa MIPI interface (Mobile Industry Processor Interface) don sabunta data. A cikin wannan taimakon, MIPI interface ya gabatar da hanyar wataƙasa da tsallakawa daya, da ke nuna mai shi a cikin daga cell phones to drones, inaka power consumption ya zo ta liman.
Duk da yanzu, kamera UVC da MIPI kamera bane domin sabunta tare da wannan rubutu na data; kamera UVC domin sabunta data na video, kamar kamera MIPI iya abuwa don sabunta image da video data; MIPI kamera domin gabatar da hanyar sabunta fayil na jimi mai kwana.
A cikin kiran, wataƙwarwa ne UVC cameras da MIPI cameras yana guda da rubutuwa a cikin amfani na application; UVC cameras yana ido ne daga wannan aiki da saituna, da karfi mai tsaye masu aiki, samanin nan, miyartun MIPI cameras yana binciken ne daga wannan aiki da transmission ta hamanin shafi a cikin mobile devices misali cellphone don karfin lowa mai ƙasa.

Kammalawa

A cikin lokaci mai media mai sosayal, cameras yana magana mutum ga amfani da aka yi a cikin smart devices mai kinds, UVC cameras yana offer plug-and-play functionality, video quality mai definition mai alhaji, da compatibility mai wide range a cikin devices. Don amfani professional a cikin video conferencing da telemedicine, ko don amfani personal a cikin live streaming da online education, UVC cameras yana versatile ne da solution mai cost-effective. Don labarar attributes, benefits, da applications, zaka iya yi decisions mai rubutuwa don amfani da UVC technology.

Tatsuniyoyi da MIPI Kamirai UVC

Ga cikakken suna a kasa, kowacewa da ido enna a fuskantar kamirai OEM, Sinoseen yana daga gabatar rubutun kamirai a Cina. A cikin hanyar, suna ba haɗi a kan masu kira da masu shirya mai nufin daidaita a kwata da suƙa nan da suka sami wannan rubutun kamirai.
Kamirainan suka iya samun taimaka don zabi da cewa sabon tsarin kasancewa, amma bari na ido da keyannan. In kana son makaman kawai da ya iya samun rubutun kamirai UVC daidai don projekta ka, koma alamarke ta .