navi videoconference gioithieu tomtat

7/26/2019 Navi Videoconference Gioithieu Tomtat

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TI LIU GII THIU GII PHP

HTHNG VIDEO CONFERENCE CHI PH THP

TRN HTNG MNG ADSL/WiFi/3G


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Gii php Video Conference trn htng dch vmng ADSL/3G/FTTH

Ti liu gii thiu gii php hp trc tuyn chi ph thp http://hoptructuyen.vn Trang 2/14

1. Kt ni v hot ng ca hthng

1.1 M tkt ni vt l

Hthng bao gm:

-My chNavi Conference Server: Hot ng ging nhbphn iu khin trung

tm MCU (Multipoint Control Unit) trong cc h thng HNTH chuyn dng vi chc

nng khi to, qun l thnh vin, gim st v kt thc cc phng hi ngh o

(Conference room) theo yu cu ca ngi s dng. Thnh phn ny c coi l ht

nhn ca hthng.

- Thit bu cui ngi dng User: Gm my tnh ci phn mm Video Client

Software gn cc thit bphtrnhIP Camera hoc Webcam, Speaker, Microphone.

Khng nhcc hthng HNTH chuyn dng phi yu cu mt trung tm iu khin hi

nghcnh (dnh cho pha chta), vic khi to mt Conference room cho php thc

hin tbt ka im no mang li slinh hot cao trong qu trnh tc nghip ca t

chc, doanh nghip, nhvy chta c thngi bt ku u iu khin c hi

Navi Video ConferenceServer

TrsA

TrsBTrsC


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ngh. Vi cc phng hp ng ngi c thkt hp TV LCD cln v hthng mic c

nhy cao.

CC THIT BPHC VTRUYN HNH HI NGHTI MT IM

1.2 Hot ng ca hthng

Ch ta chtr hi nghsgiaccount c quyn iu khin cao nht trong hi

ngh. tham gia hi nghcchta v i biu u phi thc hin thao thc Login vo

hthng my chhi nghthng qua Web brower. Cc i biu sau khi ng nhp s

xut hin trng thi Online trn danh sch i biu v hnh nh c hin thtrn mn

hnh ca chta. Nhvy tn hiu hnh nh sc truyn tcc trm vmy chv t

Mic hi nghvi microa hng lc n vi

nhy caoMy tnh ci ph nmm Navi VideoConference Client

LCD Plasma cln dngtrong phng hp chung

WebCam


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pht li ln mn hnh video ca cc trm. Ty theo la chn ca ngi dng, vic

truyn d liu Video chcho php pha ch ta theo di hnh nh ca cc i biu v

mn hnh i biu ch hin thvideo pha ch ta hoc video ca i biu ang pht

biu, (tnh nng ny stit kim ti a chi ph bng thng cho cc chi nhnh) hoc tn

hiu hnh nh c thpht ln ton bcc knh video ca bt ktrm no.

Tn hiu thoi Audio struyn tcc trm ang tham gia pht biu ln my ch

sau c pht xung ton bcc trm tham gia hi ngh. Khi mt trm i biu ang

pht biu th ton bcc knh Audio ln (Audio Uplink) ti cc trm ca cc i biu

khc sbkha li, ni cch khc th chknh Audio uplink ca chta v i biu ang

pht biu mi c pht ln hi ngh. Vic cp quyn v thu quyn i biu pht biu s

do chta thc hin trong qu trnh hi ngh..

Trong qu trnh tham gia hi nghcc i biu c ththo lun ring vi nhauthng qua text message.

H thng cn cho php s dng cc tnh nng khc nh chia s ti liu,

Whiteboard, ghi lu trli qu trnh hi ngh....

2. Yu cu vbng thng:

Vi p ng cho Video phn gii VGA 800x600 th bng thng vi my trm

cn bng thng 512Kbps cho mi hng Download v Upload. Vi p ng Video

phn gii CIF 320x240 yu cu bng thng my trm ti thiu 128Kbps.

Navi Video Conference bandwwith meterNavi Video Conference bandwwith meter


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3. Cc tnh nng ca hthng:

- Gim st trng thi user online

- Phn quyn ngi dng: Admin (qun trhthng); Moderator; User

- Chta (quyn Moderator) nm quyn iu khin hi ngh.- i biu (quyn User) nghe v xem chta hoc i biu khc pht biu, trnh

by ti liu c quyn gi y/c pht biu n chta.

- Video cho php hin thVideo cc phn gii chun VGA n HD.

- Chc nng bng trng (whiteboard) vit, v, chia sti liu, trnh din

powerpoint.

- Cho php ghi m ra file lu li ton bbui hp (ghi chnh v ting).

4. Khnng bo mt ca hthng Navi Video Conference

H thng Navi Video Conference p dng cc chun bo mt cao cp gm

Blowfish, AES 128bit (chun bo mt c p dng trong vic bo mt dliu trong h

thng mng dliu ca chnh phM) v MD5 trong vic m ho/gii m mi dliu

(gm hnh nh Video, m thanh Audio v dliu Data) trong qu trnh truyn/nhn trn

mi trng mng IP, Internet (End-to-End Encryption). Ngoi ra hthng cn yu cu

xc thc ngi dng (User Authentication), xc nhn mt khu ng nhp phng hp

(Online Meeting Password) sn sng p ng cc yu cu vbo mt mc cao nht.


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5. Mt sgiao din ca phn mm

Giao din ngi dng cui:

Ngi dng cui (ch ta hoc i biu) c thng nhp phng hp trc tuyn qua

trnh duyt vi account c cp hoc qua phn mm Client ci sn trn my.

Giao din sau khi ng nhp thnh cng vo phng hp. Tnh nng cc nt lnh tngtc:

i biu c phtbiu ln hi nghkhichta cho php.

Danh sch cc i biu(hay tn cc trm)tham gia hi ngh

Chta: chtrcuc hpi bi u c chta

cho php pht biu sxut hin y

Mn hnh Whiteboard cho

php vit, v, trnh chiuti liu trong hi ngh

Danh sch cc file ti

liu c chia s(chta hoc i biu c

thupload hoc ti v

Cc cng cdng vit, v

khi trnh by,

din thuyttrong hi tho

Cc nt iuchnh m lngv ghi m ghi

hnh phin hp


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Video c thko gin kch thc ty hoc hin thFull screen:

Hoc hnh nh Video cng c thko sang mt mn hnh th2:


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Mt sthit bphn cng cn trang bcho phng hp chung:

Webcam Logitech C910 hoc Video Cam Sony EVI-D70

htrphn gii HD c iu khin txa

Microphone a hng TV LCD 42inch Navi CODEC PC

Hnh nh phng hp chung sdng 2 mn hnh LCD: 1 cho hnh nh, 1 cho trnh chiu:


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6. Bng so snh cc gii php Video Confernce

Bng so snh vcc thnh phn ca hthng, y/c p ng v cc tnh nng

STTCc thnh phn hthng, y/c p ng

v tnh nng

Gii php da trncng nghphn cng- HW based nhSony,

Polycom

Gii php NaviVideo Conference

da trn cng nghphn mm - SW

based

A So snh vthnh phn, yu cu

1 Thit bMCU chuyn dng Phi c Khng cn

2 WEBCAM chuyn dng Phi c Khng cn, dngwebcam thng

3ng truyn ring ISDN, E1 ti miim

Phi cKhng cn, dng

ADSL thng

4 Modem u cui chuyn dng Phi c Khng cn

5 Bnh tuyn Router Leasedline Phi c Khng cn

6Khnng p ng cho nhiu imtham gia hi nghng thi

Bgii hn Khng gii hn

B So snh vtnh nng

1 Khnng htrhnh nh Video Up to HD Up to HD

2 Khnng htrm thanh Audio C C

3 Chia sti liu Optional C

4 Chia sWhiteboard Optional C

5 Chia sWeb Khng C


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6 Ghi m, ghi hnh cuc hp Optional C

7Cho php chtoiu hnh tvtr btktrong mng

Khng C

8Cho php i biu tham dbt cu c mng Internet

Khng C

7. MT SM HNH PHNG HP TRC TUYN DNG CHUNG:

a/ M hnh phng hp cnhv trung bnh (khng qu 20 ngi):

Vi m hnh ny nn sdng bn hp ton bl mt phng v chcn sdng loispeakerphone vi nhy cao km bloa my tnh 2.1 v webcam gn PowerPod (nucn tnh nng PT).


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b/ M hnh phng hp cln (t25 ngi trln):

Vi m hnh ny nn sdng hthng mic bn hoc mic khng dy

(nh tliu ly tngun: pti.com.vn - Skt hot ng kinh doanh 6 thng u nm2011 ca Tng cng ty CP Bo him Bu in tchc cu truyn hnh 8 tnh).

Vi m hnh v din tch phng hp cth, chng ti stvn sdng loi michp l nht p ng mi yu cu ca qu khch.


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Khuyn nghvVideo:Thc tvi m hnh hp trc tuyn cht lng thoi lun l yu tquan trng hng udo vy Video chl thyu khi xem xt cho dn. Vi htng mng Vin thng hinhnh ca Vit Nam chng ti khuyn nghphn gii Video chun VGA 800x600vi Framerate t10-25 l hp l nht bi ti mi im cu chcn bng thng n nh

trung bnh 512Kps. Vi chun CIF 320x240 yu cu bng thng ti thiu 128Kps, tcny th vi gi ADSL thp nht hoc 3G u p ng tt.

Trng hp khch hng mong mun nhiu v cht lng Video chng ti xut sdng webcam HD ca hng Logitech. Webcam ny h trphn gii HD720p chong dng hp trc tuyn Navi Video Conference vi u im l gc quan st rng (cthbao qut c phng hp rng ti 50m2), khnng thiu chnh nh sng theo nhsng mi trng lun cho cht lng nh tt, chi ph thp so vi dng camera chuyndng, thit bi km phn mm htrtnh nng PTZ (xoay tri phi, ln, xung, zoom)nhng vi phm vi p ng hp (zoom ti a khong 6m, tuy nhin cht lng nh mbo trong phm vi khng qu 4m khi zoom st i tng)

Webcam Logitech C910

Trng hp khch hng mong mun nhiu vtnh nng PTZ th cc dng Camera caSony c khuyn nghnhSony EVI-D70 (htrphn gii VGA) gi 32 triu/b(gi bao gm ccard Diamon USB Video capture) .Tuy nhin khnng tng hiuchnh theo nh sng nn ca cc thit bny km hn do vy cn thit knh sng chuncho phng hp.

Sony EVI D70


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8. KHNNG GHP NI VI HTHNG HI NGHTRUYN HNH CNGNGHPHN CNG.

Gii php Navi Video Conference cho php thc hin ghp ni vi cc h thng hi

nghtruyn hnh cng nghphn cng (bt cloi no). Ti liu di y trnh by cho

mt dn cthti EVN Tuyn Quang:

Bi ton:Ghp ni hthng hi nghtruyn hnh hin hnh ca EVN Tuyn Quang vo

h thng hp trc tuyn Navi Video Conference nhm chuyn tip tn hiu Video &

Audio th thng sdng thit bphn cng Sony PCS G50 (ti phng hp Cng ty

ENV Tuyn Quang kt ni ln Tng cng ty ti H Ni) v phng hp ti cc tuyn

huyn sdng gii php hp trc tuyn chi ph thp Navi Video Conference.

Mc tiu:Cho php cc chi nhnh ca EVN Tuyn Quang tuyn huyn sdng gii

php hp trc tuyn cng nghphn mm Navi Video Confernece tham dcc bui hp

hi nghtruyn hnh cp tng Cng ty sdng cng nghphn cng (VCS ca Sony &

MCU ca Cisco) mc c nghe v nhn thy Video thi ngh.

Gii php thc hin: Ghp ni thit b Sony PCS G50 t ti phng hp ca EVN

Tuyn Quang vo b Navi CODEC PC (my tnh s dng cho kt ni Navi Video

Conference) bng cch sdng thit bghp ni Video capture giao tip chun USB chohnh nh v ghp ni tn hiu Audio Out tSony PCS G50 vo cng Line In trn Sound

card my tnh.

SM PHNG GHP NI GIA SONY PCS G50

V MY TNH NAVI CODEC

Sony PCS G50

Navi CODEC PC

USB Video Cap

LineIn

AudioOut


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SM PHNG GHP NI HTHNG

Sony PCS G50EVN Tuyn Quang

Navi CODEC PCVP Cng ty

USB Video Cap

LineIn

AudioOut

Sony PCS G50Tng Cty - H Ni

Navi Conference Server

Navi CODEC PCHuyn A

Navi CODEC PCHuyn B

Navi CODEC PCHuyn N

EVN Network

E1/Leasedline

EVN T.Quang

MetroNET

Cisco MCU 4150

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