Bin led module ma trn - Cc bc tin hnhBin qung co ma trn led d lm
hn bin ledsign v c cc nh sn xut ch to sn thnh cc modul. Chng ta ch
vic ghp cc modul thnh bng c kch thc theo yu cu v kt ni ng l xong.
Tuy nhin, mt s ngi s cm thy phc tp v phi phn bit nhiu loi module v
phi ci t cho ng cc thng s trong phn mm iu khin. Sau y l cc bc lm mt
bin ma trn led.Bc 1: Tnh ton thit kKhi nh lm mt bin ma trn led bn
cn bit kch thc bin ca bn l bao nhiu. Kch thc quan trng v cc loi
modul led c kch thc c nh. Bn ch c th ghp modul thnh cc tm c kch thc
bng s nguyn ln din tch ca mt modul. Nu khung ca bin l bt buc v ln
hn kch thc ghp c t cc modul th phn tha ra bn s lm khung hp. Ngoi
ra, bn phi chn loi modul thch hp vi kch thc v tm quan st ca bin. Nu
bin gn bn phi chn loi modul c phn gii cao nh P10, P16. Cn xa bn ch
cn loi c phn gii thp nh P20 chng hn.Hin nay c nhiu loi modul c kch
thc khc nhau. Ti xin lit k mt vi loi cc bn tham kho.Loi moduleKch
thcKhong cch pixel
P1016cm x 32cm10mm
P2016cm x 32cm20mm
P1612,8cm x 25,6cm16mm
P7.6224,4cm x 12,2cm7,62mm
Bc 2: Ghp modulCc modul u c nh sn xut sn v tr bt vt. Chng ta da
vo cc v tr ny tnh ton cc khung xng ghp cc modul vi nhau. Thng thng
nu bin c 3 hng modul tr ln chng ta nn lm xng chy dc ln. Ghp nh vy
ta s c cc mng gm cc modul chng ln nhau. Sau ta s lm cc xng ngang
chy theo chiu di ca bin bt cc mng ny ln.Vic s dng modul ngoi tri
hay trong nh cng cn phi quan tm khi lm khung xng. Nu l trong nh bn
khng cn phi n vic chng nc, ch ghp lm sao cho kht l c. Nu l loi ngoi
tri, modul s c mt giong cao su pha sau. Chng ta phi lm vin p st c
giong ny mi m bo kn nc. Nu khng ta s phi lm hp chn nc tt.Cc bn lu
nn ghp cc modul sao cho d tho lp nu c trc trc. Nu khng mi ln x l li
phi d cc bin ra th rt mt.Khi mua modul, chng ta s c cung cp cp tn
hiu v cp ngun kt ni tt c cc modul vi nhau. Sau khi ghp hon thin cc
modul chng ta tin hnh ni cp ngun v cp tn hiu.Bc 3: Ni mch iu khin
CPU v chy phn mmC nhiu loi CPU trn th trng ph hp cho mi loi bin v
kch thc ca bn. Gi c c th t khong 250 ngn vi triu. Bn nn chn CPU c
tnh nng iu khin c s lng im nh cao hn s lng im nh trn bin ca bn. Nh
vy khi chy hnh nh hoc ch mi khng b git.Nu bin t hng th CPU khng cn
b chia knh (adapter). Bn nn mua cp tn hiu t CPU ra modul di mt cht
d thao tc v t CPU v tr m bn mun. Mi hng modul trn bin ta cn c mt cp
tn hiu ni vi CPU. CPU c kt ni vi my tnh bng cng com. Nu bn mun dng
cng USB th phi mua thm mt cp chuyn i USB to Com. Nn mua loi tt m bo
mua v l dng c v th trng nhiu loi rm lm.Khi mua CPU bn cng s c cung
cp phn mm iu khin, np ch hoc hnh nh. Mi phn mm c cch dng khc nhau.
Ti s gii thiu vi cc bn mt phn mm hay dng cho loi BX trong mt bi
khc.Bc 4: Lm khung hpLm khung hp cho bin ty theo yu cu v thit k ca
bn
Cu to module led P10 v cch kt niTrong bi ny ti xin gii thiu vi
cc bn cc b phn ca mt module led. Ti ly loi P10 lm v d v n c y cc b
phn v n gin tm hiu.Mt trc ca module led P10 nh hnh di
Nh cc bn bit, module P10 c ngha l khong cch im nh, y l hai bng
led lin tip nhau l 10mm. Mi im nh l mt bng led v vy y l loi P10 n
sc . Module ny c 32 ct v 16 hng tng ng vi kch thc 160x320mm. y l
loi chu nc nn khun nha c c rt kht vi bng led trnh nc. Chiu dy ca
khun nha cng dy hn loi semi outdoor.Mt sau ca module l mch in t c
cc v tr cm jc tn hiu v cp ngun nui. Trn thnh ca khun nha mt sau cng
c cc v tr bt vt v rnh lp jong chng nc.
Khi mua module bn s c cung cp jc tn hiu, dy ni ngun, v giong cao
su. Mt sau c 02 jc tn hiu. Cc bn nhn theo chiu mi tn nh du trn bo
mch. Jc th nht l ni tn hiu t CPU vo (nu y l module u hng) hoc t
module pha trc. Khi cm cp cc bn ch trn bo mch u mi jc c ch "OE", ta
phi cm sao cho v tr "OE" module ni vi v tr "OE" module kia hoc trn
CPU. Jc th 2 ni vi module pha sau. Nu y l module cui hng th jc ny
trng.Ni ngun cho module bng dy in hoc cp ngun c cung cp. Ch ti cng
sut ca mch chn dy cho ph hp. Mi module P10 s tiu th dng cc i tnh l
khong 2A. V th nu bn nh ni 01 dy ngun cho 20 module th dy phi chu c
40A m khng b nng.Trn bo mch c cc linh kin l cc IC ngun, ghi dch....
Ni chung chng ta khng nn cc vt dn in chm vo bo mch. Khi chy trnh s
tay vo mch mt sau c th gy nhiu hoc chy IC.
