Báo cáo th*c t*p t*t nghi*p

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Bo co thc tp tt nghip

Bo co thc tp tt nghip Trang 44

Bo co thc tp tt nghip Trang 44

TRANG PH BA

B GIO DC V O TOTRNG I HC S PHM K THUT TP.HCMKHOA O TO CHT LNG CAO-------------------------

BO CO THC TP TT NGHIPNgnh: Cng ngh k thut in t - Truyn thngCNG TY: (GHI CHNH XC V Y TN CNG TY) ti: KHO ST THIT B V QUY TRNH BO TR MN HNH LED

SVTH: MSSV:

TP. H CH MINH 05/2015LI CM NLi u tin, em xin c phep chn thanh gi li cam n n thy giao Nguyn Thanh Hi, giao vin hng dn tai a inh hng va trao i nhng kinh nghim quy bau sinh vin thc hin hon thnh ti thc tp.Em thc hin tai cung xin trn trong cam n anh Nguyn Thnh Cng v cc nhn vin k thut trong cng ty TNHH MTV NG DNG CNG NGH V DCH V TRUYN THNG U LC gip v h tr em trong sut qu trnh thc tp.

TP HCM, Ngay 30 Thang 05 Nm 2015Sinh vin thc hin tai

(Lu : Phn ny nn t mnh vit theo cm ngh ca mnh, lin quan n nhng ngi cng tc, h tr v gip mnh)

CNG HA X HI CH NGHA VIT NAMc Lp - T Do - Hnh Phc------------------------------------

TP. HCM, ngy 30 thng 05 nm 2015

NHN XT KT QU THC TP TT NGHIP

Cng ty: TNHH MTV NG DNG CNG NGH V DCH V TRUYN THNG U LCCn b hng dn:Tn sinh vin thc tp: Tn:MSSV: Nhn xt: V mt chuyn cn: Tt Kh Trung bnh yu thc t chc k lut: Tt Kh Trung bnh yu Kh nng chuyn mn: Tt Kh Trung bnh yu Tnh sng to: Tt Kh Trung bnh yu

nh gi chung: Xp loi (Tt, Kh, Trung bnh, Yu):

Xc nhn ca cng tyCn b hng dn thc tp

(Lu : trang ny sinh vin thay bng t c ch k v nh gin ca cn b hng dn thc tp ca cng ty)

CNG HA X HI CH NGHA VIT NAMc Lp - T Do - Hnh Phc------------------------------------

TP. HCM, ngy 30 thng 05 nm 2015

NHN XT CA GIO VIN HNG DN

Gio vin hng dn: Sinh vin thc tp: Tn:MSSV: Nhn xt: Kin thc sau thc tp: Trnh by bo co: nh gi chung: im s (ch):

Ging vin hng dn thc tp

LI NI U.

MC LCNi dung Trang

TRANG PH BAiLI CM NiiNHN XT KT QU THC TP TT NGHIPiiiNHN XT CA GIO VIN HNG DNivLI NI UvMC LCviDANH MC HNHviiiDANH MC BNGxCHNG 1: GII THIU TNG QUAN N V THC TP11.1 Thng tin v n v thc tp.11.1.1 S hnh thnh v pht trin ca cng ty.11.1.2 T chc v cc lnh vc hot ng ca cng ty.21.1.3 Lnh vc hot ng ca cng ty:41.1.4 T chc qun l s dng cc ngun lc ca cng ty.61.2 Yu cu k thut i vi bng led qung co.71.3 Cc thng s k thut trong chn module led hin th71.3.1 Trng hp LED Indoor.71.3.2 Trng hp LED Outdoor9CHNG 2: NI DUNG CNG VIC THC TP TI CNG TY122.1 Qu trnh thc tp ti cng ty.122.2 Cc yu t k thut lp rp mn hnh led312.2.1 B ngun cung cp312.2.2 Card x l v Hub332.2.3 Lp rp thnh 1 mn hnh Led342.2.4 Kt ni cc b phn lin quan n setup mn hnh led.352.2.4.1 B x l video LVP404 (LVP: Led Video Processor)352.2.4.2 Cc trng hp iu khin mn hnh led372.2.4.3 Cch s dng phn mm setup X Media Player 2.8.5.0.392.3Quy nh v mi trng v an ton lao ng43CHNG 3: KT LUN43PH LC44Ti liu tham kho:44T vit tt:44

DANH MC HNHHnh 1.1: Logo cng ty1Hnh 1.2: S t chc cng ty2Hnh 1.3: Kho, xng bo tr ca cng ty Alta Media.4Hnh 1.4:Nhn lc cng ty Alta Media.6Hnh 1.5: Module LED P6 kch thc 16x327Hnh 1.6: Module P12 Indoor8Hnh 1.7: Module P12 Outdoor10Hnh 2.1: V sinh v sy kh cc Module bng bnh kh nn12Hnh 2.2: Cp ngun v bus tn hiu t card kim tra module13Hnh 2.3: Led hng chn khng pht sng13Hnh 2.4: Thay cc gi tr in tr RR3_RG3_RB314Hnh 2.5: V tr cc in tr RGB cn thay14Hnh 2.6: Hn in tr mi cho module15 Hnh 2.7: Rp cc module vo khung15Hnh 2.8: Mt trc ca module khi gn li bo v led15Hnh 2.9: Mt sau ca Module khi gn khung bo v15Hnh 2.10: Cc module led rp li v khung hon chnh c ct vo thng16Hnh 2.11: Mt sau cabin led16 Hnh 2.12: Mt trc cabin led16Hnh 2.13: i dy ngun cho cabin led17 Hnh 2.14: i dy bus tn hiu..17Hnh 2.15: Cabin led c ni dy hon chnh17Hnh 2.16: Gn b ngun P617Hnh 2.18: Cabin led c gn b ngun v card x l18Hnh 2.19: Cabin led gn khung bo v18Hnh 2.20: Cp ngun v tn hiu cho cabin led19Hnh 2.21: Kim tra mu ca tng cabin led tm li19Hnh 2.22: Cp ngun v tn hiu t card x l cho cc cabin led19Hnh 2.24: Kim tra mu cc cabin led20Hnh 2.25: Kim tra mn hnh led 1.2 m2 gm 4 cabin led P6.20Hnh 2.26: Chm en trn mn hnh do led h hoc lng chn20Hnh 2.27: Chy video trn mn hnh led 1.2m221Hnh 2.28: Mn hnh led c ln 6 m221Hnh 2.29: Tn hiu hin th trn mn hnh led t my tnh22Hnh 2.30: V tr cc module cn sa cha22Hnh 2.31: Chy video trn mn hnh Led23Hnh 2.32: Cabin led P1223Hnh 2.33: Kim tra mu cho cabin led P1023Hnh 2.34: V tr b tr cc mn hnh led trn sn khu ca phim trng S324Hnh 2.35: Hiu ng v hnh nh thay i trn mn hnh led24Hnh 2.36: Qu trnh tho g mn hnh led25Hnh 2.37: S v tr lp t mn hnh led ti nh ht Ha bnh25Hnh 2.39: Bng k khai cc thit b vt t dng trong chng trnh26Hnh 2.40: Gn khi ngun cho cabin led cu thang27Hnh 2.41: Kim tra Led cu thang27Hnh 2.42: Bm u ct bng km bm dy28Hnh 2.43: Tut u dy ngn28Hnh 2.44: Gn u dy kt ni vi ngun28Hnh 2.45: Mt si dy ngun hon chnh29Hnh 2.46: Setup card tn hiu chun b kim tra cabin led P429Hnh 2.47: Cp ngun v tn hiu kim tra cabin led P430Hnh 2.48: u vo cm ngun 3 pha ca h thng31Hnh 2.49: Hp ngun tch 3 pha thnh 1 pha31Hnh 2.50: u ra l ngun mt pha vi in p khong 50 VAC31Hnh 2.51: B ngun nui cho tng cabin led vi in p ra 5V32Hnh 2.52: B ngun nui khc cho cabin led vi in p ra + 5V32Hnh 2.53: B card nhn x l tn hiu33Hnh 2.54: Mt trc ca Hub M rng33Hnh 2.55: Mt sau ca Hub gn trc tip vo card x l33Hnh 2.56: Gn ngun v Card x l ca cabin led P634Hnh 2.57: Cc cabin led c chun b gn mn hnh34Hnh 2.58: Mn hnh led hon chnh khi gn cc cabin led35Hnh 2.59: B LVP404 thc t ti cng ty35Hnh 2.60: S h thng iu khin mn hnh led36Hnh 2.61: S h thng iu khin mt mn hnh led n gin37Hnh 2.62: Cch hin th 2 mn hnh led nh vi 1 card truyn38Hnh 2.63: Ghp card truyn hin th mn hnh ln38Hnh 2.64: Hi tip dy tn hiu v card truyn39Hnh 2.65: Chn LED Control manager40Hnh 2.66: Xut hin hp thoi LED Control manager40Hnh 2.67: Click chn Import41Hnh 2.68: Chn cu hnh module sn c v click Open41Hnh 2.69: Sau khi Import file tin hnh chnh kch thc cabin led Apply42Hnh 2.70: Click chn Insert42Hnh 2.71: Hp thoi receiving card list43

DANH MC BNGBng 1.1: c im k thut ca Module LED P6.8Bng 1.2: c im k thut ca Module LED P12 Indoor9Bng 1.3: c im ca Module LED P12 Outdoor.10Bo co thc tp tt nghip

Bo co thc tp tt nghip x

Chng 2: Gii thiu tng quan dn v thc tp 1

CHNG 1: GII THIU TNG QUAN N V THC TP1.1 Thng tin v n v thc tp. 1.1.1 S hnh thnh v pht trin ca cng ty.Tn chnh thc: Cng ty TNHH Mt Thnh Vin ng Dng Cng Ngh v Dch V Truyn Thng U LC

Tn vit tt: ALTA MEDIA

Alta Medial mt n v tr ng dng cng ngh vin thng v in t chuyn cung cpdch v IT solutions cng nh cc gii php truyn thng.

Alta Mediac vn hnh bi mt i ng nhn vin tr trung, nng ng, sng to, n lc ht mnh vi mong mun p dng nhng kin thc v qung co, truyn thng kt hp vi sc mnh vt tri ca cng ngh thng tin (bao gm cng ngh vin thng v in t) to ra nhngsn phm, dch vthc s em li gi tr gia tng v tin ch cho khch hng.

a ch: 17 ng Sn, Phng 7, Qun Tn Bnh, Tp. H Ch Minh.Gim c: Mr.Ti, D: 0933 802 408Website: http://ww.altamedia.vn/LOGO cng ty:

Hnh 1.1: Logo cng tyTiu ch kinh doanh ca cng ty.Hot ng vi tiu ch cng kt ni, v thng tin vi thng hiu ca khch hng.1.1.2 T chc v cc lnh vc hot ng ca cng ty. V t chc.L Cng ty TNHH mt thnh vin, gim c trc tip l ngi iu hnh Cng ty, gip vic cho gim c l cc ph gim c, cc phng ban vi chc nng, nhim v khc nhau, v nhiu mt hot ng c Cng ty.S cu c cu t chc ca cng ty ALTA MEDIA.

Hnh 1.2: S t chc cng ty Gim c L ngi c quyn lc cao nht trong Cng ty, chu trch nhim v mi hot ng sn xut kinh doanh ca Cng ty trc Nh nc v php lut iu hnh chung cc hot ng cc phng ban Trc tip ph trch cng tc cn b Quyt nh cc vn lin quan n chnh sch, ch o bi dng nng cao chuyn mn nghip v, ci thin iu kin lao ng cho cn b cng nhn vin. Ph gim c Nhn nhim v trc tip t gim c, tham mu cho gim c v cc chnh sch, k hoch lin quan Chu trch nhim, iu hnh ton b hot ng phng ban theo lnh vc qun l v n c hng ca xng, hin trng sn xut

Lin doanh k kt cc hp ng vi bn hng a ra cc k hoch mua bn vt t, hng ha, nguyn ph liu, ph tng thit b my mc. Phng T chc lao ng - Hnh chnh Nhn nhim v trc tip t gim c v ph gim c lin quan. Tham mu cho gim c v lnh vc t chc cn b, o to, lao ng, tin lng ch chnh sch qun l hnh chnh. Ph trch chung v qun l nhn s, qun l cc phn mm s dng trong h thng sn xut, h thng qun l nhn s. Phng K ton ti chnh Nhn nhim v trc tip t gim c v ph gim c lin quan. Tham mu cho gim c trong cng tc k ton ti chnh nhm s dng ng vn hp l, ng mc ch theo ch , bo m cho qu trnh sn xut kinh doanh ca cng ty c thng sut v t hiu qu cao. Phng Kinh doanh - Xut nhp khu Nhn nhim v trc tip t gim c v cc ph gim c lin quan. Tham mu gip vic cho gim c v nhng lnh vc: Xy dng v iu hnh thc hin k hoch sn xut ca Cng ty, theo di k hoch cng tc cung ng vt t sn xut v qun l vt t, sn phm ca cc kho do phng qun l. Trc tip ph trch cng tc tiu th sn phm trong v ngoi nc, tiu th cc ph liu; cc hot ng nhp khu cc loi nguyn vt liu, my mc phc v cho sn xut.Qun l cc n hng v th tc xut nhp khu. tip nhn n hng v x l n hng theo n t hng, bin dch cc ti liu theo n hng, hng dn cho b phn k thut lm theo mu. Phng K thut - Cht lng Nhn nhim v trc tip t gim c v ph gim c lin quan.Tham mu cho gim c v cc lnh vc: thit b, lp k hoch mua nguyn vt liu phc v cho sn xut: led, linh kin,k hoch mua sm trang thit b, ph tng m bo nng cao cn dng cho cc n hng. nh mc k thut cabin led, nh mc s dng nguyn vt liu cho cc n hng, nh mc lao ng, hao ph lao ng. Xy dng cc ch tiu k thut, cht lng sn phm m bo ng yu cu ca khch, ng thi kim tra cht lng sn phm. iu hnh cc b phn sn xut, lp t thc hin n hng theo ng mu v tin theo lnh ca gim c. Xng sn xut kho: Thc hin quy trnh sn xut ra sn phm hon thnh. Theo di tnh hnh nhp,chnh sa h hng ca thit b , xut tn nguyn vt liu, thnh phm v c nhim v vn chuyn hng ha. M hnh cu trc t chc ca cng ty Alta Media l m hnh cu trc t chc theo chc nng.

Hnh 1.3: Kho, xng bo tr ca cng ty Alta Media.1.1.3 Lnh vc hot ng ca cng ty:Qung co mn hnh led, thit k lp t mn hnh led, cho thu mn hnh led v xe mn hnh led di ng.V mn hnh led th gm c 2 loi indoor led v outdoor led. V indoor Led:Mn hnh indoor Led ti cng ty c cc loi sau: P4 Module Indoor SMD 3 in 1. P5 Module Indoor SMD 3 in 1. P6 Module Indoor SMD 3 in 1. P7.62 Module Indoor SMD 3 in 1. P8 Module Indoor SMD 3 in 1. P10 Module Indoor SMD 3 in 1. P12 Module Indoor SMD 3 in 1. P20 Module Indoor SMD 3 in 1

Khi my chiu khng m bo c sng, mn hnh LCD qu nh th mn hnh ln LED gip gii quyt c nhu cu hin th c bit.Mn hnh LED hin th mu indoor (trong nh) c th c s dng 1 s ni nh: trng quay, rp ht, sn khu ca nhc, hi trng ln, snh ln ca cc to nh, khch sn hay cc s kin qung co.Mn hnh LED indoor c th c c hu ht cc nh dng : video, mp4, avi, swf, VCD, DVD, trnh din Powerpoint t nhiu ngun d liu: Access, ODBC, SQL Mn hnh hin th mu LED indoor s dng cng ngh Diode pht quang vi nhng u im ni tri v sng v tui th so vi cc phng tin pht hnh hin c (khong 100000 gi). Mi im nh l cc LED c sng khc nhau, khong cch gia mi im nh c thit k nhm m bo tm nhn tt nht: Mn hnh LED indoor c khong cch mi im nh a dng t 4mm n 10mm Mn hnh ln LED gip cho vic cp nht thng tin thng xuyn ti cc sn giao dch chng khon, bn xe, nh ga, sn bay thng tin c cp nht nhanh chng, gy s ch v d quan st, d hiu. V outdoor Led:Mn hnh outdoor Led ti cng ty c cc loi sau: PH16 Module Dual Color. P10 Module Real Full Color. P12 Module Real Full Color. P12 Module Virtual Full Color. P14 Module Real Full Color. P16 Module Real Full Color. P16 Module Virtual Full Color. P18 Module Real Full Color. P18 Module Virtual Full Color. P20 Module Real Full Color. P20 Module Virtual Full Color. P22 Module Real Full Color. P22 Module Virtual Full Color. P25 Module Real Full Color. P25 Module Virtual Full Color.Mn hnh outdoor Led c chc nng tng t nh mn hnh LED indoor thng thng (cng dng, sng v tui th), mn hnh LED hin th mu outdoor (ngoi tri) cng hin th hnh nh ng v tnh mt cch r rng v sc nt.

c bit, vi cng sng ca didode rt cao (cao hn nhiu so vi mn hnh LED indoor), mn hnh LED outdoor c th p ng c nhu cu hin th ngoi tri ngay c khi tri nng. Mn hnh LED outdoor c khong cch mi im nh t 4 mm n 31.25 mm v to ra 4.4 t mu nn to hnh nh trung thc khng thua km g cc phng tin pht hnh hin c. Mi im sng Led c sng n hng nghn Lumens lm cho mn hnh c th chnh sng thu ht ngi xem ngay c nhng mi trng ti hoc sng nht. Mn hnh LED outdoor rt hiu qu khi s dng cho vic qung co ngoi tri, ti cc sn vn ng, qung trng, trn ng quc l Do cc module ca mn hnh LED outdoor c c bit thit k chng m, chng thm nc, chng nh nng nn n c th n nh sut 24 gi trong ngy. Ngoi ra cng ty cn cung cp 1 s loi nh sau: Bng Qung co. Bng Thng tin nghip v Ngn hng. Bng Thng tin th trng chng khon. H thng xp hng v gi s t ng. Bng Gi vng. Bng kt qu X s kin thit. 3D LED Cube(hin th 3 chiu) LED Cm ng Bng kt qu t s thi u th thao.1.1.4 T chc qun l s dng cc ngun lc ca cng ty.Vi tp th i ng cc k s, nhn vin lp trnh tr, nng ng v sng to,Alta Mediaxin cam kt lun to ra nhngsn phm,dch vc uy tn v cht lng cao vi mong mun em cc ng dng cng nh cc gii php v nh sng LEDcng ngh cao vo trong cc lnh vc hot ng nh qung co, t chc s kin, thng tin i chng v.v nhm phc v, gp phn xy dng thng hiu ca qu doanh nghip.

Hnh 1.4:Nhn lc cng ty Alta Media.

1.2 Yu cu k thut i vi bng led qung co.Mn hnh in t Led dng lm phng tin qung co ngoi tri b tr trn cc ng giao thng khng c dng m thanh v phi tun theo cc quy nh sau: V tr: t mp ng n cnh gn ng nht ca mn hnh, ti thiu l 5m. Din tch ti a mt mt mn hnh: 100 m2. Chiu cao ti a mt mt mn hnh: 10 m tnh t mt t n cnh di ca mn hnh in t. Khong cch: ty theo tnh hnh thc t ca a phng v v tr quy hoch quy nh c th cho ph hp.Mn hnh led in t led b tr ti cc khu cng cng phi tun th cc quy nh sau: Din tch t 40 m2 n 60 m2. Khng c t ti cc nt giao thng, khng c dng m thanh. Chiu cao tnh t mt ng n mp trn ca mn hnh khng qu 15 m.Mn hnh led in t led b tr ti cc khu t chc s kin, sn khu phi tun th cc quy nh sau: c php s dng m thanh. rng ca mn hnh led c php v phi theo yu cu ca bn t hng, thu mn hnh led. m bo v sinh sau khi lp t v ng thi gian quy nh ca khch hng.1.3 Cc thng s k thut trong chn module led hin th1.3.1 Trng hp LED Indoor.Vi Module P6 ni ring v cc Module LED Indoor ni chung th cn quan tm n cc thng s k thut sau, la chn cho ph hp vi yu cu hin th nh: sn khu ca nhc, hi ngh, snh cc ta nh lnHnh 1.5: Module LED P6 kch thc 16x32

Bng 1.1: c im k thut ca Module LED P6.

P6 Module Indoor SMD 3 in 1

Tiu chunn vThng s

Khong cch gia hai im nhmm6

Cng sng ca n LEDCd/m21800

Gc nhn rDeg.Nm ngang: 140Nm dc: 120

Kch thc module LEDmm192x96

c tnh LEDSMD0603SMD0805

Cu hnh ca bng LED1R1G1B

phn gii ca moduleDot32 x 16

in nng tiu thW< 48

in p hot ngV5

Khong cch nhn tt nhtm9

Hnh 1.6: Module P12 Indoor

Bng 1.2: c im k thut ca Module LED P12 IndoorP12 Module Indoor SMD 3 in 1

Tiu chunn vThng s

Khong cch gia hai im nhmm12

Cng sng ca n LEDCd/m2500

Gc nhn rDeg.Nm ngang: 140Nm dc: 120

Kch thc module LEDmm160 x 160

c tnh LEDSMD0603SMD0805

Cu hnh ca bng LED1R1G1B

phn gii ca moduleDot16 x 16

in nng tiu thW< 24

in p hot ngV5

Khong cch nhn tt nhtm18

Cn c vo cc c im trn v t vn k thut ca cng ty khch hng c th la chn Module LED cho ph hp.1.3.2 Trng hp LED Outdoorin hnh l module LED P12 c kh nng hin th ngoi tri ni c cng nh sng mi trng cao, v c th nhn r khong cch xa hn dng LED Indoor.

Hnh 1.7: Module P12 Outdoor

Bng 1.3: c im ca Module LED P12 Outdoor.

P12 Module Real Full Color

Tiu chunn vThng s

Khong cch gia hai im nhmm12

Cng sng ca n LEDCd/m24500

Gc nhn rDeg.Nm ngang: 120Nm dc: 60

Kch thc module LEDmm192x96

c tnh LEDDIP 346

Cu hnh ca bng LED2R1G1B

phn gii ca moduleDot16 x 8

in nng tiu thW28.8

in p hot ngV5

Khong cch nhn tt nhtm18

Thng s k thut mn hnh led li cabin led P12

Kch thc cabinet:800mmC x 400mmR (Cao x Rng) Mt im nh trn m2:6400/m2 (pixel/m2) Diode (di-t) bng n LED:s dng bng i-t LED SMD 3 in1 mu en cho tng phn cao gp 02 ln so vi bng i-t SMD 3 in1 mu trng thng thng (tng cng kh nng hp th nh sng tt gip h thng mn hnh LED s khng b bng hoc cha khi b cc nh n sn khu tc ng t bn ngoi chiu trc din vo). Hin th:cht lng r nt vi tng phn cao theo nh dng chun HD. Lp t:nhanh chng tin dng, linh hot vi cc kiu lp phng v cong lm. Sa cha & Bo tr:d dng(trc, trong v sau chng trnh)bng vic thay th cc module b li mkhng cn vn hay xi c vt.

Bo co thc tp tt nghip Trang 1

Bo co thc tp tt nghipTrang 33

Chng 1: Gii thiu tng quan n v thc tp

Chng 1: Gii thiu tng quan n v thc tpCHNG 2: NI DUNG CNG VIC THC TP TI CNG TY2.1 Qu trnh thc tp ti cng ty.Tun 1: T ngy 30/03 n ngy 05/04/2015. Tm hiu tng quan v s t chc v hot ng ca cng ty.. Tm hiu v cc loi mn hnh led trong cng ty. Hot ng ca phng bo tr v khi k thut Tham gia vo qu trnh bo tr Module led P6, rp vo cc cabin net (mt cabin net gm nhiu Module ghp li vi nhauV sinh Module LED P6Trong qu trnh s dng lu ngy cc Module thng phi chu tc ng ca mi trng, cng nh nhng s c nh trong qu trnh vn chuyn lp rp ti cc chng trnh sn khu ca nhc, trung tm hi ngh trin lm lm cho chng b h hng v hn ch kh nng chiu sng do bi bm ... nh hng ti cht lng hnh nh ca cc mn hnh Led nn cn v sinh v bo tr nh k cc Module.

Hnh 2.1: V sinh v sy kh cc Module bng bnh kh nn

Khi v sinh xong ta tin hnh kim tra mu cho cc module, xem Module cn hot ng tt hay h v cn sa cha nhng g. kim tra mu ta s dng card truyn d liu gn vo Module sau kim tra bng cc mu v cc hiu ng dch led c lp trnh sn, tm li v khc phc.

Tin hnh kim tra ledTrong qu trnh kim tra nhng Module sng u v cc mu theo lp trnh t card x l th t yu cu v tin hnh rp khung. Nhng tm cng nh sng ca cc led khng u th thay in tr. Hnh 2.2: Cp ngun v bus tn hiu t card kim tra module

Hnh 2.3: Led h hng chn khng pht sng

Nhng led khng sng thng l do lng chn hoc h, led h th cn thay mi cn nhng led b lng chn th ch cn hn chn li.Trng hp cc Module sng khng u th s c thay th ton b in tr nguyn nhn c th l do cc in tr c lu ngy s dng khng cn tt.

Mi modul led gm tng cng 12 con in tr dn (4 con 910, 4 con 2.2 k, 4 con 2.7 k) tng ng cho ba mu c bn ca module led l Red/Green/Blue

Hnh 2.4: Thay cc gi tr in tr RR3_RG3_RB3

Hnh 2.5: V tr cc in tr RGB cn thay

Hnh 2.6: Hn in tr mi cho module Hnh 2.7: Rp cc module vo khung

Sau khi thay mi in tr, ta tin hnh kim tra hot ng ca cc module mt ln na nu t yu cu th tin hnh rp cc module vo khung bo v chun b gn vo cc cabin led.

Hnh 2.8: Mt trc ca module khi gn li bo v led

Hnh 2.9: Mt sau ca Module khi gn khung bo v

Hnh 2.10: Cc module led rp li v khung hon chnh c ct vo thng

Tun 2: t ngy 06/04 n ngy 12/04/2015.

Gn module P6 vo cabin led P6Mi mt cabin led P6 gm c 18 module P6 v c gn nh Hnh 2.11, Hnh 2.12, kch thc ca mi cabin led P6 l (576 x 576 mm) Hnh 2.11: Mt sau cabin ledHnh 2.12: Mt trc cabin led

Khi gn cc module hon chnh vo cabin led ta tin hnh i dy ngun v dy tn hiu. Hnh 2.13: i dy ngun cho cabin led Hnh 2.14: i dy bus tn hiu

Hnh 2.15: Cabin led c ni dy hon chnhSau khi ni dy ngun v dy bus tn hiu ta tin hnh gn b ngun v card x l cho cc cabin led. Hnh 2.16: Gn b ngun P6 Hnh 2.17: Gn b card x l tn hiu

Hnh 2.18: Cabin led c gn b ngun v card x l

Sau khi gn b cp ngun v card x l tn hiu ta c mt cabin led hon chnh nh Hnh 2.18. Vic gn ngun rt quan trng phi gn ng chiu v cc tnh theo nhng k hiu VCC v GND trn cc Module, trnh ri ro khi cp ngun v c th lm h module led (c th phi b lun v module b chy).

Hnh 2.19: Cabin led gn khung bo v

Kim tra cabin led P6

Hnh 2.20: Cp ngun v tn hiu cho cabin led v kim tra mu ca tng cabin led tm li

V yu cu cng vic i hi phi nhanh v s n nh ca cc cabin led ta tin hnh kim tra nhiu cabin led cng lc

Hnh 2.21: Cp ngun v tn hiu t card x l cho cc cabin led

Hnh 2.22: Cp ngun kim tra nhiu cabin led cng lc

Hnh 2.23: Kim tra mu cc cabin led

Sau khi kim tra cc cabin led s c gn thnh mn hnh led ln hn quan st s ng nht ca cabin led khi hin th cng mt ni dung.

Hnh 2.24: Kim tra mn hnh led 1.2 m2 gm 4 cabin led P6 v chm en trn mn hnh do led h hoc lng chnCc cabin led c kim tra m bo hin th mu ng v khng b cht led, chng s c ghp thnh 1 mn hnh ln hn tin hnh kim tra li mt ln na, l do l v kim tra mn hnh ln v khon cch xa s d pht hin hin th sai mu

Hnh 2.25: Chy video trn mn hnh led 1.2m2

Khi kim tra mn hnh led bng cc on video th kh pht hin nhng li nh nh led h, in tr c m n vn hot ng tt. Nhng ngi khng chuyn c th khng pht hin ra v n hot ng bnh thng, xong v yu cu k thut cng nh nhu cu kht khe ca khch hng th tt c nhng li ny s c khc phc ti xng bo tr trc khi a ti khch hng.Tun 3: T ngy 13/04 n ngy 19/04/2015.Kim tra mn hnh led nh tun 2 nhng vi kch thc ln hn, khong 6 m2. Vic lp cc mn hnh ln l yu cu thc t n gip sa cha ton b cc module h, hin th sai mu, v m bo khng b li khi lp t ti cc cng trnh theo yu cu khch hng.

Hnh 2.26: Mn hnh led c ln 6 m2 Hnh 2.27: Tn hiu hin th trn mn hnh led t my tnh

Tn hiu kim tra mn hnh led c chnh t my tnh thng qua phn mm chnh phn gii cho ph hp vi kch thc mn hnh. V tin hnh kim tra cc bc nh trnh by tun 2 pht hin v sa li cc module.

Hnh 2.28: V tr cc module cn sa chaVi mn hnh ln ta c th thy tng quan nhiu li c th gp phi trong thc t. C nhiu nguyn nhn dn n vic phi thay module nh: nh sng ca module hi ti thng l do lp sai hng ca li bo v, khng c tn hiu thng do lng dy tn hiu, hoc do lp ln th t cc cng Hub lm mu ca cabin led b o ngcCc module s c sa v thay mi m bo mn hnh hot ng chnh xc, hnh nh hin th r rng, sinh ng,

Hnh 2.29: Chy video trn mn hnh LedKhi chy video trn mn hnh th kh sinh ng cht lng v phn gii ca module kh cao 32 x 16 cho mi moduleKim tra hot ng ca cabin led P12 (led li)Do module c bn cao nn ch yu l b h led, v th ta ch cn kim tra mu ca chng thay th led h, hoc thay nhng tm li bo v b h do va chm trong qu trnh vn chuyn.

Hnh 2.30: Cabin led P12

Hnh 2.31: Kim tra mu cho cabin led P10Module led P12 c khong cch cc led l 12mm tha hn module P6, v vy s im nh t hn v phn gii thp hn so vi P6.i cng trnh thc tNgy 16/04 tham gia i cng trnh thc t ca cng ty ti phim trng S3, ng Ng Vn S, Qun 4, TP. H Ch minh v sn khu ca nhc ti nh ht Ha Bnh, ng 3 thng 2, Qun 10, TP. H Ch minh.

Hnh 2.32: V tr b tr cc mn hnh led trn sn khu ca phim trng S3

Hnh 2.33: Hiu ng v hnh nh thay i trn mn hnh ledSau khi kt thc chng trnh biu din ta tin hnh tho mn hnh led tho cc cabin led ra khi mn hnh v ng vo thng ri chuyn v kho ca cng ty hoc chuyn ti lp t ti cng trnh khc.

Hnh 2.34: Qu trnh tho g mn hnh led

Cng trnh ti nh ht Ha Bnh, Qun 10

Hnh 2.35: S v tr lp t mn hnh led ti nh ht Ha bnh

Hnh 2.36: Sn khu nh ht Ha Bnh

Hnh 2.37: Bng k khai cc thit b vt t dng trong chng trnhChng trnh ti nh ht ha bnh s dng cc cabin led P3, P4 cho mn hnh chnh gia sn khu, y l mn hnh c phn gii cao nn cc gc xa ca sn khu u c th nhn r. Cc mn hnh cnh th s dng cc cabin led P12 (led li) h tr to hiu ng hai bn sn khu, lm cho sn khu sinh ng hn.

Tun 4: T ngy 20/04 n ngy 26/04/2015.

c im ca loi led cu thang+ Kch thc mi tm l : (1.152 x 0.192 ) m+ C th trnh chiu cc hiu ng, video clip v hnh nh ging Led trn mn hnh chnh v cnh nhm to thm chiu su cho sn khu.i dy ngun v bus tn hiu cho cabin led cu thang

Hnh 2.38: Gn khi ngun cho cabin led cu thang

Hnh 2.39: Kim tra Led cu thang Trong qu trnh kim tra nu c h hng th sa cha bnh thng. Trong qu trnh tho cc module led ra khi cabin led v sinh lm sch bi bn nh hng n kh nng hin th hnh nh th s c nhng dy kt ni ngun trong cabin led b t, h v vy cn phi bm dy mi.

Hnh 2.40: Bm u ct bng km bm dy

Hnh 2.41: Tut u dy ngn v gn u dy kt ni vi ngun

Cc dy ngun Hnh 2.41 c 3 mu khc nhau, mu l dy nng, mu xanh l dy ngui, mu vng l dy trung tnh ni t. Cc dy ngun ny dng kt ni ngun cho mn hnh cabin led nn di ti a thng vo khong 0.6 m.

Hnh 2.42: Mt si dy ngun hon chnh

Tun 5: T ngy 27/04 n ngy 03/05/2015.Sinh vin c ngh l

Tun 6: T ngy 04/05 n ngy 10/05/2015.

Bo tr sa cha cc cabin led P4, quy trnh v k thut kim tra ging nh bo tr led P6 nh trnh by

Hnh 2.43: Setup card tn hiu chun b kim tra cabin led P4

Hnh 2.44: Cp ngun v tn hiu kim tra cabin led P4Trong qu trnh thc tp ti cng ty sinh vin c h tr gii p cc thc mc v k thut gip hon thin thm phn bo co thc tp.

2.2 Cc yu t k thut lp rp mn hnh led2.2.1 B ngun cung cp

Hnh 2.45: u vo cm ngun 3 pha ca h thng

Hnh 2.46: Hp ngun tch 3 pha thnh 1 pha

Hnh 2.47: u ra l ngun mt pha vi in p khong 50 VAC

Hnh 2.48: B ngun nui cho tng cabin led vi in p ra 5V

Hnh 2.49: B ngun nui khc cho cabin led vi in p ra + 5V

Cc ngun nui s dng trong h thng l kh nhiu v vy cc b ngun ny cng thng xuyn c kim tra bo m hot ng tt khng b st p. Nng cao tnh n nh ca h thng. Trn hnh 2.49 l b ngun cung cp +5V DC cho hot ng ca cabin led, vi in p vo khong 50V AC thng qua qu trnh chnh lu ca b ngun th in p ra l + 5 V DC cp cho cc module led.

2.2.2 Card x l v Hub

Hnh 2.50: B card nhn x l tn hiu

Hnh 2.51: Mt trc ca Hub M rng

Hnh 2.52: Mt sau ca Hub gn trc tip vo card x lTrn Hnh 2.51 l card nhn x l tn hiu dng b x l Spartan 6 ca FPGA, trn card c EEPROM lu cc chng trnh kim tra mu v dch led c bn tin khi kim tra tng module led. ng thi s dng cp tn hiu cho mt cabin led th i hi phi gn thm phn Hub 75 m rng nh Hnh 2.52, Hnh 2.52, trn b Hub 75 c s dng nhng IC m rng h tr iu khin v dch led t card x l. Cc cng Hub c kt ni tn hiu vi cc modul led thng qua dy Bus. Hub c gn trc tip ln card x l thng qua cc hng rao chn.

Hnh 2.53: Gn ngun v Card x l ca cabin led P6Hnh 2.53 cho thy mt trc v sau ca cabin led khi lp hon chnh, y s s dng 6 cng Hub iu khin ni tip 6 hng module led theo chiu t phi sang tri. phn gii ca Module P6 l 32 x 16 tng ng ta c 512 im nh trn mi module v mi cabin led P6 c 18 module nh Hnh 2.53 th ta c 18*512 l 9216 im nh khc nhau.2.2.3 Lp rp thnh 1 mn hnh Led

Hnh 2.54: Cc cabin led c chun b gn mn hnh

Hnh 2.55: Mn hnh led hon chnh khi gn cc cabin ledTrc khi gn cc mn hnh led ta phi xy dng khung gn chng, kch thc ca khung ph thuc vo din tch mn hnh led t khc hng. Cc cabin s c rp vo khung vi dy rt, dy km, v cc kha cht c sn trn cc cabin led. Khi c nh vo khung th mn hnh s tr nn chc chn, khng b khi va chm v m bo an ton k thut khi vn hnh h thng.2.2.4 Kt ni cc b phn lin quan n setup mn hnh led.2.2.4.1 B x l video LVP404 (LVP: Led Video Processor)

Hnh 2.56: B LVP404 thc t ti cng ty

LVP404 l b x l video tch hp gm nhiu cng kt ni cc ng vo ra khc nhau gip iu khin v x l video nhanh chng. C nhiu chun ng vo khc nhau nh: RS232, DVI, SDI/HDSDI, HDMI, VGA v 2 ng vo tch hp v vy n c th kt ni vi Laptop, PC, HD Camera, u DVD B x l LPV404 cn c nhiu ng ra khc nhau l cc u DVI (DVI: Digital Visual Interface l giao din kt ni gia my tnh, b x l video c th truyn ti video c phn gii HD), nhng cng DVI ny s c cc b card truyn gi d liu ti mn hnh hin th.

Hnh 2.57: S h thng iu khin mn hnh ledTrong s h thng iu khin mn hnh led Hnh 2.57, b x l video LVP404 ng vai tr l b x l trung tm ca h thng. Vi ng vo gm nhiu chun kt ni khc nhau nn c th kt ni vi nhiu thit b video u vo nh: Laptop, my tnh bn, Camera HD, u DVD, to iu kin thun li khi la chn ng vo iu khin mn hnh led.Cc PC c th kt ni vi b LVP404 qua cc chun RS232, DP, DVI ty loi thit b m ta c chun kt ni tng ng, d dng v tin li. Sau khi kt ni c vi b x l video th cc PC s ti d liu ln thng qua phn mm iu khin, phn mm s iu chnh kch thc mn hnh led mun hin th. Sau b LVP404 s x l tn hiu video t PC gi ra cc cng DVI ng ra (mi tn hng ra), tn hiu sau s c y ln card truyn thng qua cng DVI, v mi b card truyn s gn v iu khin mt mn hnh led nh, ti cc mn hnh led u c cc card nhn chng s x l tn hiu v gi chng ra mn hnh hin th.Trn Hnh 2.57 ta thy mt mn hnh led ln c ghp t 4 mn hnh nh, mi mn hnh nh c iu khin bi cc b card truyn ng vi cc ng ra DVI ca b x l. Mi ng ra DVI s ti d liu ln b card truyn v mi b card truyn s x l v iu khin mt mn hnh led. Vi nhiu ng ra DVI ca b LVP404 th ta c th iu khin nhiu mn hnh led ti nhng v tr khc nhau, v d nh trong mt sn khu c b tr mn hnh chnh v nhiu mn hnh hnh ph th mi b card truyn s iu khin mi mn hnh.Tn hiu vo l camera HD th c kt ni qua chun DSI, d liu c quay t camera s c b LVP404 x l v hin th trn mn hnh. Vic s dng camera trc tip th thng thy cc sn khu.Cng tng t u DVD c kt ni theo chun HDMI, cc tn hiu video ca DVD s c x l v hin th nh trn ch khc l tn hiu ng vo c ly t cc thit b khc nhau.Vi nhng mn hnh c kch thc ln th phi s dng nhiu b card truyn v b nh ca cc b card ny c gii hn cn s ng nht ca tn hiu th do phn mm v b x l video thc hin. 2.2.4.2 Cc trng hp iu khin mn hnh led

Hnh 2.58: S h thng iu khin mt mn hnh led n ginTrong Hnh 2.58 th my tnh trc tip gi d liu xung card truyn thng qua cng DVI v t card truyn tn hiu s c gi ti card nhn trong mn hnh led bng cp mang internet RJ45.

Hin th 2 mn hnh

Hnh 2.59: Cch hin th 2 mn hnh led nh vi 1 card truynTrong Hnh 2.59 mi card truyn thng c 2 tn hiu ng ra ta c th dng 2 ng ra nh hnh bn tri hoc mt ng ra nh hnh bn phi v trong b x l ca card truyn c s dng cc IC dch nn c hai cch trn u dng kt ni c.

Ghp nhiu card truynMc ch: Hin th mn hnh kch thc ln.

Hnh 2.60: Ghp card truyn hin th mn hnh lnVic ghp thnh mn hnh ln nh Hnh 2.60 th ta phi s dng dy chia cng DVI v gn cc cng DVI vo card truyn x l tn hiu.

Hi tip dy tn hiu:Mc ch: Trnh mt tn hiu khi chy chng trnh.Ch : Cch Hi tip tn hiu ny ch p dng c cho module Led P6.

Hnh 2.61: Hi tip dy tn hiu v card truyn2.2.4.3 Cch s dng phn mm setup X Media Player 2.8.5.0. Vo menu Control LED Controller Configure.

Hnh 2.62: Chn LED Control manager

Hnh 2.63: Xut hin hp thoi LED Control manager Sau khi xut hin hp thoi LED Control manager ta chn para setting tin hnh nhng ci t cho phn mm. Tip theo nhp mt khu mc inh: dbstarled vo hp thoi input password nhu Hnh 2.63

Hnh 2.64: Click chn Import

Hnh 2.65: Chn cu hnh module sn c v click Open

Hnh 2.66: Sau khi Import file tin hnh chnh kch thc cabin led Apply

Cch setup kt ni bng led. M bng LED control settingnhn Insert.

Hnh 2.67: Click chn Insert

Hnh 2.68: Hp thoi receiving card list

Khi hp thoi hin ra nh Hnh 2.63 ta chon cc thng s receiving card in line v receiving in row tng ng vi kch thc mn hnh sau Click wizzar to kt ni t ng Click OK2.3 Quy nh v mi trng v an ton lao ng Trong kho-xng sn xut ca cng ty.Khng c ht thuc l tro, nu nhn vin sai phm ln u pht 100.000 VN ng thi cnh co ni b, nu sai phm nhiu ln hai hp hi ng buc thi vic i vi nhn vin sai phm.Cc loi rc, linh kin thit b in t b h hng c phn loi ring x l, trnh nguy hi cho mi trng.

Khi i show chng trnh.eo gng tay, mang giy, i m bo v trong qu trnh lao ng trn cng trnh, m bo v sinh sau khi lp t, cng nh tho mn hnh.Bo co thc tp tt nghip Trang 12

Chng 2: Ni dung cng vic thc tp ti cng ty

Chng 2: Ni dung cng vic thc tp ti cng ty CHNG 3: KT LUNSau thi gian 6 tun thc tp tt nghip ti Cng ty TNHH Mt Thnh Vin ng Dng Cng Ngh v Dch V Truyn Thng U LC. Em c tm hiu hot ng bo tr ca cng ty, tham gia trc tip vo qu trnh bo tr, sa cha cc modul led P6, P4, P12 cng nh cc cabin led ca chng. Trc tip tho, lp rp cc h thng mn hnh led ti kho-xng kim tra cc cabin led m bo chng hot ng tt trc khi i lp rp ti cc show din hay cc cng trnh khc ca khch hng. Tm hiu tng quan v cc thit b vt t trong phn xng cng nh cc phn mm setup v kim tra mn hnh led. c i nhng cng trnh lp rp thc t ti nh ht Ha Bnh Qun 10 v phim trng S3 qun 4, Tp. H Ch Minh qua hiu c hot ng kinh doanh ca cng ty, cng hot ng bo tr ca cc nhn vin k thut.Trong qu trnh thc tp em thu c kh nhiu kin thc b ch v hn cc lich kin dn, kin thc v b ngun, card x l, cc phn mm setup mn hnh led, cng vi phn mn Codevision lp trnh cho dng vi iu khin AVR ang s dng cho cc card x l v bit c quy trnh lm sao c c mt mn hnh led hon chnh v n c vn hnh nh th no, ng thi cng ng dng c mt s kin thc hc vo cng vic thc t. Sau nhng ngy u em lm quen vi cc anh k thut v thy mi ngi rt ha ng nn cng thoi mi hi nhng thc mc ca mnh v cng vic t thu c kh nhiu kin thc hay. Khi thc tp ti cng ty em c thm kinh nghim thc t v bc u nh hng c chuyn mn cng vic ca mnh sau khi ra trng.T thy mnh cn b gii hn v kin thc chuyn mn v cn nng cao kin thc cng nh cc k nng mm khi cn hc ti trng. Vic thc tp gip em c st thc t ng dng cc kin thc hc vo cng vic y iu rt thit thc v b ch cho mi sinh vin. Em cng xin gi li cm n ti thy Nguyn Thanh Hi v s hng dn tn tnh ca anh Nguyn Thnh Cng cng nh s ch bo n cn ca cc anh nhn vin trong cng ty. Vi nhng s gip qu gi ny gip em hon thnh tt bi co co thc tp.Trong qu trnh thc tp v vit bo co kh trnh khi nh nhng sai st. Rt mong cc anh trong cng ty TNHH Mt Thnh Vin ng Dng Cng Ngh v Dch V Truyn Thng U LC v thy Nguyn Thanh Hi cng nh cc thy, c trong khoa Cht Lng Cao thng cm.Bo co thc tp tt nghip Trang 43

Sinh vin thc hin bo co TTTN xin chn thnh cm n!

Chng 3: Kt lun

PH LC

Ti liu tham kho:[1] Ti liu tham kho ca cng ty u Lc.[2] http://ww.altamedia.vn/[3] http://vi.aliexpress.com/[4] http://chothuemanhinhled.net/san-pham

T vit tt:DVI: Digital Visual InterfaceHDMI: High-Definition Multimedia InterfaceLVP: Led Video ProcesserDP : Display PortVGA: Video Graphics Array SDI : Serial Digital Interface

Ph lc

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