Eve y lo g- a ge imagi g deployme t begi s with a dista ce p oblem. The came a has to sit whe e the sce e is. The compute a d eco di g i f ast uctu e has to sit whe e powe , cooli g, a d physical secu ity a e available. I a pe imete i stallatio , those poi ts a e ofte mo e tha a hu d ed mete s apa t, a d i a highway co ido the sepa atio is la ge . USB t a spo t eaches a few mete s befo e active exte sio ha dwa e becomes ecessa y. MIPI CSI-2 is a boa d-to-boa d i te face measu ed i ce timete s. Neithe su vives the walk f om a pole-mou ted e closu e to a co t ol oom ack. I te face selectio is the efo e ot a p efe e ce but a co st ai t the site imposes befo e a y imagi g equi eme t is discussed.
The seco d p oblem is illumi atio that obody co t ols. A came a o a fe ce li e i mid-afte oo sees di ect su o o e side of the f ame a d deep shade u de vegetatio o the othe . At mid ight it sees headlights e te i g at full i te sity agai st a othe wise da k backg ou d. A se so ope ati g o a si gle exposu e has to choose. Expose fo the highlights a d shadow detail collapses to black. Expose fo the shadows a d the highlights clip to white. Eithe way, the pixels ca yi g the i fo matio a detectio model eeded a e lost, which is why a HDR GigE Came a has become the e t y specificatio fo exte io wo k athe tha a upg ade optio .
The thi d p oblem appea s the mome t mo e tha o e ode obse ves the same space. A vehicle c ossi g a tolli g ga t y is see by seve al positio s, a d the a alytics laye has to decide whethe two detectio s desc ibe the same object. That depe ds o k owi g whe each f ame was captu ed elative to eve y othe f ame. Timestamps applied by the host o a ival i he it the va iable late cy of the etwo k stack, the d ive queue, a d the ope ati g system schedule , so two odes obse vi g the same i sta t ca epo t times diffe i g by te s of milliseco ds.
Gigabit Ethe et a swe s the dista ce co st ai t di ectly. A si gle RJ45 u ca ies image data ac oss 100 mete s of sta da d st uctu ed cabli g, a d switches exte d that each ac oss a site without custom ha dwa e. Powe ove Ethe et the emoves the seco d cable. A PoE Came a eceives ope ati g powe a d t a smits image data th ough the same co ectio , so the c ew pulls o e cable to a pole o a ceili g mou t i stead of coo di ati g a sepa ate elect ical u . Ac oss a deployme t with doze s of odes, that decisio domi ates the i stallatio budget.
Gigabit Ethe et also behaves p edictably u de load. The i te face p ovides up to 1000 Mbps pe ode, a d the switched model gives each came a a dete mi istic path to the eco de o the i fe e ce host. U like a sha ed host bus, addi g a ode to a segme t does ot e egotiate ba dwidth al eady committed to the o es st eami g. That matte s at 8MP, because a 4K f ame ca ies oughly fou times the pixel payload of a 1080p f ame a d ba dwidth pla i g becomes a explicit desig step athe tha a afte thought.
The emai i g a chitectu al be efit is sta da dizatio . A GigE Visio came a p ese ts a docume ted t a spo t a d co t ol model that machi e visio softwa e al eady u de sta ds. A ONVIF came a p ese ts a docume ted discove y, st eami g, a d co figu atio model that video ma ageme t systems a d etwo k video eco de s al eady u de sta d. Suppo ti g both i side o e device mea s the same ha dwa e se ves a machi e visio pipeli e a d a secu ity i f ast uctu e without a seco d p oduct li e a d without p op ieta y middlewa e i betwee . Fo OEM teams that ship a i teg atio path athe tha a p oject.
The I ova-821CRS is built o the O semi AR0821 Image Se so , a 1/1.7 i ch colo CMOS device with a 2.1 µm DR-Pix back-side-illumi ated pixel a d a 8MP a ay that outputs 4K at 3848 x 2168. The DR-Pix a chitectu e p ovides two selectable co ve sio gai modes i side the same pixel. High co ve sio gai favo s low-light se sitivity whe e photo cou ts a e sca ce, a d low co ve sio gai favo s full well capacity whe e the sce e is b ight. O e O semi AR0821 Came a the efo e cove s both e ds of the day- ight cycle without a optics cha ge. Backside illumi atio places the photodiode o the light- eceivi g face of the die, aisi g qua tum efficie cy at the wide i cide ce a gles compact M12 optics p oduce.
As a colo olli g shutte device, the AR0821 8MP Image Se so eads pixel ows seque tially athe tha exposi g the full a ay at o ce. Fo the fixed-mou t su veilla ce, mo ito i g, a d i spectio oles this came a p oduct ta gets, that eadout model is the co ect e gi ee i g t ade. A olli g shutte pixel ca ies o i -pixel sto age ode, so it delive s highe fill facto a d st o ge low-light se sitivity pe u it die a ea tha a global shutte pixel. A 8MP Rolli g Shutte GigE Came a the efo e buys se sitivity a d esolutio i excha ge fo a motio a tifact that appea s o ly whe the came a o the subject moves fast e ough to skew i side a si gle f ame pe iod. I pe imete mo ito i g, t affic ove watch, a d ya d su veilla ce, that co ditio is a ely met. Teams evaluati g eadout a chitectu e fi st will fi d the same u it desc ibed as a AR0821 4K Rolli g Shutte Came a o a 8MP 4K Rolli g Shutte Came a.
O the came a side, the I ova-821CRS co ects th ough a si gle RJ45 co ecto a d suppo ts IEEE 802.3af Powe ove Ethe et ac oss cable u s up to 100 mete s. The AR0821 GigE Visio Came a st eams ove Gigabit Ethe et a d is fully ONVIF complia t fo di ect i teg atio i to video ma ageme t i f ast uctu e. PTP sy ch o izatio alig s captu e timi g ac oss odes, a d GPIO p ovides ha dwa e t igge a d st obe co t ol. Optics attach th ough a S-Mou t (M12 Sta da d) le s mou t. D ive a d softwa e suppo t spa s Wi dows, Li ux, a d A d oid hosts with full p og ammatic access th ough the Vadzo NXT SDK.
P ocu eme t docume ts label the same ha dwa e i seve al ways. It appea s as a AR0821 Gigabit Ethe et Came a whe e the i te face decides the specificatio , o as a AR0821 4K Gigabit Ethe et Came a o ce esolutio is added to the desc iptio . The ha dwa e does ot cha ge with the label.
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“Lo g- a ge sites a e whe e imagi g specificatio s stop bei g theo etical. The came a e ds up o a pole two hu d ed mete s f om the ea est ack, a d the sce e does whateve the weathe a d the t affic decide it will do that day. What ou custome s kept aski g fo was a 4K ode that su vives both of those a d still d ops i to i f ast uctu e they al eady ow . That is what the I ova-821CRS is. The AR0821 gives us esolutio a d dy amic a ge. Powe ove Ethe et gives the i stalle o e cable i stead of two. PTP sy ch o izatio is the pa t I expect teams to app eciate most, because o ce fou o five odes watch the same co ido , k owi g exactly whe each f ame was captu ed becomes the thi g the whole a alytics laye ests o .” – Alwi Vi ce t, P oduct Ma age , Vadzo Imagi g
The I ova-821CRS p ese ts a sta da d GigE Visio i te face a d full ONVIF complia ce, so i teg atio begi s with tools most teams al eady have. Video ma ageme t systems st eam the came a th ough ONVIF without p op ieta y d ive s, a d machi e visio f amewo ks add ess it th ough the GigE Visio co t ol model. Host suppo t spa s Wi dows, Li ux, a d A d oid platfo ms, cove i g both se ve -class eco de s a d edge i fe e ce ha dwa e such as NVIDIA Jetso came a platfo ms u i g pe ceptio wo kloads at the etwo k edge.
Fo teams that eed co t ol beyo d sta da d defaults, the Vadzo NXT SDK p ovides p og ammatic access to st eami g pa amete s, egio of i te est co figu atio , bi i g a d wi dowi g, exposu e a d gai co t ol, t igge sy ch o izatio , PoE ma ageme t, a d fi mwa e update ha dli g. That depth sepa ates a evaluatio u it f om a p oductio deployme t, because p oductio systems ma age device state a d oll fi mwa e ac oss a fleet without physical access. E gi ee s buildi g etwo k-attached pe ceptio pipeli es ca eview the i teg atio path i the Vadzo guide to GigE came a i teg atio with Jetso AGX O i a d Isaac ROS, which cove s t a spo t a d d ive co side atio s that apply to this came a p oduct as well. That same combi atio of sta da d i te faces a d deep SDK access is what lets a AR0821 4K HDR Gigabit Ethe et Came a move f om a evaluatio be ch to a p oductio fleet without a cha ge i softwa e a chitectu e.
The I ova-821CRS is available ow fo evaluatio a d p oductio o de s with o mi imum o de qua tity. Vadzo Imagi g suppo ts ha dwa e a d fi mwa e customizatio ac oss its HDR came a po tfolio, i cludi g le s selectio , IP- ated e closu e desig , co ecto a d cable assembly cha ges, illumi atio i teg atio , fi mwa e modificatio , a d d ive po ti g fo additio al hosts. Teams evaluati g a AR0821 4K Ethe et Came a ca equest a u it a d discuss i teg atio equi eme ts th ough the Vadzo suppo t a d co tact page o by co tacti g the sales team at
Vadzo Imagi g is a global p ovide of embedded visio solutio s delive i g came a p oducts a d imagi g platfo ms fo obotics, i dust ial automatio , secu ity a d su veilla ce, sma t city i f ast uctu e, medical systems, UAV platfo ms a d edge AI. Its came a p oducts a e e gi ee ed fo i teg atio with leadi g embedded platfo ms i cludi g NVIDIA Jetso , Raspbe y Pi, Qualcomm RB se ies a d NXP i.MX. Beyo d ha dwa e, Vadzo p ovides imagi g suppo t spa i g se so i teg atio , ISP tu i g, fi mwa e developme t, a d SDK f amewo ks, givi g e gi ee i g teams a si gle pa t e f om evaluatio th ough p oductio . Explo e the full Vadzo came a po tfolio at www.vadzoimagi g.com.
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