navi videoconference

TI LIU GII THIU GII PHP H THNG VIDEO CONFERENCE CHI PH THP

TRN H TNG MNG ADSL/WiFi/3G

Gii php Video Conference trn h tng dch v mng 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 h thng 1.1 M t kt ni vt l

H thng bao gm: - My ch Navi Conference Server: Hot ng ging nh b phn 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 h thng.

- Thit b u cui ngi dng User: Gm my tnh ci phn mm Video Client Software gn cc thit b ph tr nh IP Camera hoc Webcam, Speaker, Microphone.

Khng nh cc h thng HNTH chuyn dng phi yu cu mt trung tm iu khin hi ngh c nh (dnh cho pha ch ta), vic khi to mt Conference room cho php thc hin t bt k a im no mang li s linh hot cao trong qu trnh tc nghip ca t chc, doanh nghip, nh vy ch ta c th ngi bt k u u iu khin c hi

Navi Video Conference Server

Tr s A

Tr s B Tr s C



ngh. Vi cc phng hp ng ngi c th kt hp TV LCD c ln v h thng mic c nhy cao.

CC THIT B PHC V TRUYN HNH HI NGH TI MT IM

1.2 Hot ng ca h thng

Ch ta ch tr hi ngh s gi account c quyn iu khin cao nht trong hi ngh. tham gia hi ngh c ch ta v i biu u phi thc hin thao thc Login vo h thng my ch hi ngh thng 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 th trn mn hnh ca ch ta. Nh vy tn hiu hnh nh s c truyn t cc trm v my ch v t

Mic hi ngh vi micro a hng lc n vi

nhy cao My tnh ci phn mm Navi Video Conference Client

LCD Plasma c ln dng trong phng hp chung

WebCam



pht li ln mn hnh video ca cc trm. Ty theo la chn ca ngi dng, vic truyn d liu Video ch cho php pha ch ta theo di hnh nh ca cc i biu v

mn hnh i biu ch hin th video pha ch ta hoc video ca i biu ang pht biu, (tnh nng ny s tit kim ti a chi ph bng thng cho cc chi nhnh) hoc tn hiu hnh nh c th pht ln ton b cc knh video ca bt k trm no.

Tn hiu thoi Audio s truyn t cc trm ang tham gia pht biu ln my ch

sau c pht xung ton b cc trm tham gia hi ngh. Khi mt trm i biu ang pht biu th ton b cc knh Audio ln (Audio Uplink) ti cc trm ca cc i biu khc s b kha li, ni cch khc th ch knh Audio uplink ca ch ta v i biu ang pht biu mi c pht ln hi ngh. Vic cp quyn v thu quyn i biu pht biu s do ch ta thc hin trong qu trnh hi ngh..

Trong qu trnh tham gia hi ngh cc i biu c th tho lun ring vi nhau thng qua text message.

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

Whiteboard, ghi lu tr li qu trnh hi ngh ....

2. Yu cu v bng 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 meter Navi Video Conference bandwwith meter



3. Cc tnh nng ca h thng: - Gim st trng thi user online - Phn quyn ngi dng: Admin (qun tr h thng); Moderator; User - Ch ta (quyn Moderator) nm quyn iu khin hi ngh. - i biu (quyn User) nghe v xem ch ta hoc i biu khc pht biu, trnh

by ti liu c quyn gi y/c pht biu n ch ta. - Video cho php hin th Video cc phn gii chun VGA n HD. - Chc nng bng trng (whiteboard) vit, v, chia s ti liu, trnh din

powerpoint.

- Cho php ghi m ra file lu li ton b bui hp (ghi c hnh v ting).

4. Kh nng bo mt ca h thng 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 d liu trong h thng mng d liu ca chnh ph M) v MD5 trong vic m ho/gii m mi d liu (gm hnh nh Video, m thanh Audio v d liu Data) trong qu trnh truyn/nhn trn mi trng mng IP, Internet (End-to-End Encryption). Ngoi ra h thng 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 v bo mt mc cao nht.



5. Mt s giao din ca phn mm

Giao din ngi dng cui: Ngi dng cui (ch ta hoc i biu) c th ng 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 tng tc:

i biu c pht biu ln hi ngh khi ch ta cho php.

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

Ch ta: ch tr cuc hp i biu c ch ta

cho php pht biu s xut hin y

Mn hnh Whiteboard cho php vit, v, trnh chiu

ti liu trong hi ngh

Danh sch cc file ti liu c chia s (ch ta hoc i biu c

th upload hoc ti v

Cc cng c dng vit, v

khi trnh by, din thuyt

trong hi tho

Cc nt iu chnh m lng v ghi m ghi

hnh phin hp



Video c th ko gin kch thc ty hoc hin th Full screen:

Hoc hnh nh Video cng c th ko sang mt mn hnh th 2:



Mt s thit b phn cng cn trang b cho phng hp chung:

Webcam Logitech C910 hoc Video Cam Sony EVI-D70 h tr phn gii HD c iu khin t xa

Microphone a hng TV LCD 42inch Navi CODEC PC

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



6. Bng so snh cc gii php Video Confernce

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

STT Cc thnh phn h thng, y/c p ng v tnh nng

Gii php da trn cng ngh phn cng - HW based nh Sony,

Polycom

Gii php Navi Video Conference

da trn cng ngh phn mm - SW

based

A So snh v thnh phn, yu cu

1 Thit b MCU chuyn dng Phi c Khng cn

2 WEBCAM chuyn dng Phi c Khng cn, dng webcam thng

3 ng truyn ring ISDN, E1 ti mi im Phi c

Khng cn, dng ADSL thng

4 Modem u cui chuyn dng Phi c Khng cn

5 B nh tuyn Router Leasedline Phi c Khng cn

6 Kh nng p ng cho nhiu im tham gia hi ngh ng thi B gii hn Khng gii hn

B So snh v tnh nng

1 Kh nng h tr hnh nh Video Up to HD Up to HD

2 Kh nng h tr m thanh Audio C C

3 Chia s ti liu Optional C

4 Chia s Whiteboard Optional C

5 Chia s Web Khng C



6 Ghi m, ghi hnh cuc hp Optional C

7 Cho php ch to iu hnh t v tr bt k trong mng Khng C

8 Cho php i biu tham d bt c u c mng Internet Khng C

7. MT S M HNH PHNG HP TRC TUYN DNG CHUNG:

a/ M hnh phng hp c nh v trung bnh (khng qu 20 ngi):

Vi m hnh ny nn s dng bn hp ton b l mt phng v ch cn s dng loi speakerphone vi nhy cao km b loa my tnh 2.1 v webcam gn PowerPod (nu cn tnh nng PT).



b/ M hnh phng hp c ln (t 25 ngi tr ln):

Vi m hnh ny nn s dng h thng mic bn hoc mic khng dy

(nh t liu ly t ngun: pti.com.vn - S kt hot ng kinh doanh 6 thng u nm 2011 ca Tng cng ty CP Bo him Bu in t chc cu truyn hnh 8 tnh).

Vi m hnh v din tch phng hp c th, chng ti s t vn s dng loi mic hp l nht p ng mi yu cu ca qu khch.



Khuyn ngh v Video: Thc t vi m hnh hp trc tuyn cht lng thoi lun l yu t quan trng hng u do vy Video ch l th yu khi xem xt cho d n. Vi h tng mng Vin thng hin hnh ca Vit Nam chng ti khuyn ngh phn gii Video chun VGA 800x600 vi Framerate t 10-25 l hp l nht bi ti mi im cu ch cn bng thng n nh trung bnh 512Kps. Vi chun CIF 320x240 yu cu bng thng ti thiu 128Kps, tc ny 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 s dng webcam HD ca hng Logitech. Webcam ny h tr phn gii HD720p cho ng dng hp trc tuyn Navi Video Conference vi u im l gc quan st rng (c th bao qut c phng hp rng ti 50m2), kh nng t hiu chnh nh sng theo nh sng mi trng lun cho cht lng nh tt, chi ph thp so vi dng camera chuyn dng, thit b i km phn mm h tr tnh 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 m bo trong phm vi khng qu 4m khi zoom st i tng)

Webcam Logitech C910

Trng hp khch hng mong mun nhiu v tnh nng PTZ th cc dng Camera ca Sony c khuyn ngh nh Sony EVI-D70 (h tr phn gii VGA) gi 32 triu/b (gi bao gm c card Diamon USB Video capture) .Tuy nhin kh nng t ng hiu chnh theo nh sng nn ca cc thit b ny km hn do vy cn thit k nh sng chun cho phng hp.

Sony EVI D70



8. KH NNG GHP NI VI H THNG HI NGH TRUYN HNH CNG NGH PHN CNG.

Gii php Navi Video Conference cho php thc hin ghp ni vi cc h thng hi ngh truyn hnh cng ngh phn cng (bt c loi no). Ti liu di y trnh by cho mt d n c th ti EVN Tuyn Quang:

Bi ton: Ghp ni h thng hi ngh truyn hnh hin hnh ca EVN Tuyn Quang vo h thng hp trc tuyn Navi Video Conference nhm chuyn tip tn hiu Video &

Audio t h thng s dng thit b phn 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 s dng gii php hp trc tuyn chi ph thp Navi Video Conference.

Mc tiu: Cho php cc chi nhnh ca EVN Tuyn Quang tuyn huyn s dng gii php hp trc tuyn cng ngh phn mm Navi Video Confernece tham d cc bui hp

hi ngh truyn hnh cp tng Cng ty s dng cng ngh phn cng (VCS ca Sony & MCU ca Cisco) mc c nghe v nhn thy Video t hi 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 s dng thit b ghp ni Video capture giao tip chun USB cho hnh nh v ghp ni tn hiu Audio Out t Sony PCS G50 vo cng Line In trn Sound card my tnh.

S M PHNG GHP NI GIA SONY PCS G50 V MY TNH NAVI CODEC

Sony PCS G50

Navi CODEC PC

USB Video Cap

LineIn

AudioOut



S M PHNG GHP NI H THNG

Sony PCS G50 EVN Tuyn Quang

Navi CODEC PC VP Cng ty

USB Video Cap

LineIn

AudioOut

Sony PCS G50 Tng Cty - H Ni

Navi Conference Server

Navi CODEC PC Huyn A

Navi CODEC PC Huyn B

Navi CODEC PC Huyn N

EVN Network E1/Leasedline

EVN T.Quang MetroNET

Cisco MCU 4150

navi videoconference

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