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KC'iih Ix'iiv^ n ^ o j i 1
V| tri con tio chu6t VTdft KW^dd Nhi^tdO M i j r c x ^ Ofnh m^y y nghta NN« -77* -72* -51* -35* -23* -12* -:, -02* ^ *06* • *\A' • >2t* • ^28* 1 05*( 10:25:1)8 29*08'B 119*170 15.3'C 115/256 < 2km mau anh 53 Ofnh mSv C 16.0km C 15.2km C 12.2km C 10.2km " 8.5kra :: 7.1km 3 5,3km :: 3.9km Z 2.3km :: <2km z z ... 03-11-2006 •'if-if:
Hinh 32: Anh IRl cua ve tinh MT-Sat ngay 2/11/2006.
Ca hai chip FPGA ciia ALTERA va CPLD eiia Xilinx deu da duge lap ghep vao he thong thu anh ve tinh khi tugng cua Vien Vat Ly va Dien tu. Hinh 32 la mot anh ma ve tinh thu duge tir he thong thu anh ve tinh eiia Vien Vat ly va Dien tir, da duge tich hgp khoi dong bo khung sir dung chip FPGA/CPLD nhu tren da trinh bay. Day la bang chung cho thay san pham cua de tai hoan toan eo the ung dung vao thuc te de phuc vu cong tac du bao th5i tiet dae biet la quan sat di^n bien eiia cac can bao.
2.5 KET LUAN
Ngay nay, khi viec sir dung cac thong tin tu lieu do ve tinh cung cap de trg giiip trong cong tac du bao thai tiet, phat hien va theo doi eac bien dong eiia khf hau, moi trucmg tai cac trung tam khi tugng tren the giai eung nhu a Vict Nam
da trd thanh thuofng xuyen va khong the thieu. V6i mot mang luai eac ve tinh khi tugng dia tinh nhu GMS eiia Nhat Ban, GOES eiia My, METEOSAT cua Chau Au, INSAT eiia an Do, FY-2 eiia Trung Quoc, GOMS " ELEKTRO" cua Nga va cac ve tinh cue nhu NOAA eiia USA, METEOR eiia Nga, FY-1 cua Trung Quoc, ngUcfi ta CO the nhan duge cac thong tin khi tugng mot each thuong xuyen, lien tuc tham chi hang gid mot.
Do vay viec thie't lap cac tram thu anh eiia ve tinh khi tugng se dong gop mot phan dang ke vao cong viec du bao thdi tiet, khi hau giup eon ngu5i tim duge cac bien phap huu hieu phong tranh thien tai...
O Viet Nam eung da s6m bat dSu trien khai cac chuang trinh tu thiet ke va che tao trong nu6e cac he thong nay de tao kha nang trien khai chiing mot each
rong rai, trong so do tieu di tai cap nha nu6e: " Nghien eiJu, thiet ke va che tao
he thu anh phan giai cao eiia ve tinh khi tugng va moi truang GMS va MT-SAT " cua Trung tam Khoa Hoc Tu Nhien va Cong Nghe Quoc Gia, do Ph5ng Ky Thuat Vien Tham, Vien Vat Ly thuc hien trong hai nam 2000, 2001.
Cong viec tien hanh nghien cihi de thiet ke, xay dung cac he thong thu tren CO so cac may vi tinh IBM/PC, mot chiing loai may rat pho bien la thich hgp vai dieu kien nu6e ta, tao thuan Igi cho ngudi sir dung va dap ung duge yeu eau ciia thuc tien, md ra nhieu kha nang hiia hen trong viec ung dung anh ve tinh GMS, dae biet la da ha duge gia thanh eiia san pham va eung la xu hudng cua the gidi trong nhiing nam gan day. Trong de tai trude day (2002) eac can bo eiia Phdng Ky Thuat Vien Tham, Vien Vat Ly va dien tir da che tao mudul dien tu nay bang cac linh kien rdi rac rat cong kenh do tin cay khong cao. Vi vay trong luan van [15] tien hanh trong khuon kho de tai nay thiet ke che tao mach dong bo khung tren mot chip FPGA eiia hang Altera lam cho mach dien gon nhe va de dang dua vao sir dung va dae biet khi sir dung cong nghe nay ta cd the cau hinh lai hoac trien khai san suat ra't nhanh, rat dan gian, tiet kiem thdi gian, tinh lap lai rat cao.
Ca hai chip lap trinh da duge thir nghiem dai ngay tren he thong thu anh ve tinh eiia Phdng Ky Thuat Vien Tham, Vien Vat Ly va Dien tu, cho thay kha nang boat dong tin cay, on djnh va da duge che tao tich hgp vao he thdng thu anh ve tinh khi tugng lap dat tai Bo Tu Lenh Phdng Khong - Khong Quan (xem them giay xac nhan d phan cudi eiia bao cao).
• Qua de tai nay, nhom tac gia da hoe va thu duge rat nhieu kinh nghiem ve cdng nghe FPGA va each thiet ke mot mach dien tu tren chip FPGA/ CPLD.
• Thie't ke" che" tao module dien tu khdi dong bo khung anh ciia he thu anh ve tinh. Thiet ke" cac khoi ehiic nang trong module dong bg khung anh nhu khdi tao ma giai ngau nhien PN, khdi nhan dang dau khung anh, khdi giai ma PN, khdi chuyen doi chudi bit thanh song song.
• Cac bude thuc hien mot project tren FPGA sir dung phan mem Maxplus II va nhung ket qua dat duge.
• Cac bude thuc hien mdt project CPLD tren phan mem lE 6.1 ciia Xilinx va nhung ket qua dat duge.
KET L U A N
Trong khuon kho ciia de tai "Nghien ciru thiet ke va tich hgp cac chip chuyen dung vao he thong do lucmg va thu thap dir lieu", ma s6 QG05.08 vai kinh phi tong cong la 60 trieu dong cho toan bg de tai chiing toi da hoan thanh duge kha nhieu cong viec, dudi dang cac mo dun:
• Tich hgp kha nang thdng bao ke"t qua bang giong ndi cho he thdng do ludng
• Tich hgp chip chuyen dung vao cac he thdng do nhieu man hien thj
• Thie"t ke" va tich hgp cac chip FPGA vao he thdng thu nhan anh ve tinh khi tugng
• Nghien cuu thiet ke va tich hgp chip Xilinx CPLD vao he thdng thu nhan anh ve tinh khi tugng
Cac noi dung neu tren day da vugt troi so vdi noi dung da dang ky trong
t y f t
khuon kho de tai. Nhimg ket qua nay da duge cong bo trong cac hoi nghi khoa
f y f y y
hoc toan quoc, ngoai ra, phan Idn noi dung trong cac van de tren da la de tai cua
f t y
cac khoa luan tot nghiep dai hoc va luan van cao hoc. Trong khuon kho de tai
/ f
nay da cd: hai luan van tot nghiep cao hoc, mot khoa luan tdt nghiep dai hoe duge thuc hien.
> t
Sau qua trinh thuc hien de tai cd the noi nhom tac gia da lam chu duge
t t /
cong nghe lap trinh cho chip de cd nhung san pham dua vao ung dung thuc te,
f ^ f
trong dd, dae biet phai ndi den viec tich hgp chip chuyen dung vao he thdng thu nhan anh ve tinh vien tham. Ca hai chip lap trinh da duge thu nghiem dai ngay tren he thdng thu anh ve tinh eiia Phdng Ky Thuat Vien Tham, Vien Vat Ly va Dien tu, cho thay kha nang boat dgng tin cay, on djnh va da duge che tao tich hgp vao he thdng thu anh ve tinh khi tugng lap dat tai Bg Tu Lenh Phdng Khong - Khong Quan (xem them giay xac nhan d phan cudi eiia bao cao). Khdng nhung the, chip duge thu nghiem de thu nhan anh cua nhung eon bao gan day, thi du Anh IRl ciia ve tinh MT-Sat ngay 2/11/2006 (Hinh 32). Kinh nghiem cho thay neu lua ebon de tai diing hudng va viec tien hanh thuc hien de tai mot each nghiem tiie thi viec dua san pham de tai vao thuc te eung khong phai la van de khd.
Cudi eung tac gia xin cam an sir cong tac eiia eac can bo Trung tam Vien tham thuoc Vien Vat ly va Dien tu.
DANH MUC CAC CONG TRINH DA CONG BO
• Ngo Dien Tap, Nguyen Kiem Hung, FSK demodulation with PSoC
CY8C27443, Bao cao va duge dang trong tai lieu cua Hoi Nghi V6 Tuyln
Dien Tu Toan Qu6c (REV 6), Ha Noi, than 11 nam 2006.
• Ngo Dien Tap, Nguyen Kiem Hung, Tich hop cdc chip chuyen dung trong
r f y
he thong do luang vat ly. Hoi nghi Vat ly toan quoc Ian thu VI, Ha Noi 22-
25/11/2005.
FSK demodulation with PSoC CY8C27443
Ngo Dien Tap and Nguyen Kiem Hung
College of Technology, VNU Hanoi
Abstract'. Frequency Shift Key (FSK) is the
most common form of digital modulation in the high-frequency radio spectrum, and has a lot of important applications in low-speed data communications. Recently, FSK modulator and demodulator can be implemented easily thank to appearance of high performance 8-bit, embedded micro-controllers. This paper introduces the use of available on-chip resources on a PsoC micro-controller to perform FSK demodulation. A FSK generator also was built on CY8C27443 micro-controller in order to support testing function of the demodulator.
Tom tat'. Dieu che va giai dieu che FSK da du'gc
ung dung tir lau trong ky thuat truyen dir lieu. Can day xuat hi^n cac vi dieu khien co toe do cao nen cac mach dieu che va giai dieu che FSK CO the thu'c hien don gian hon. Trong bai bao nay gioi thieu mot so ket qua dung cac tai nguyen phan cirng san c6 cua vi dieu khien CV8C27443 ket hop voi phan mem de thu-c hien chiic nang ciia mot b9 giai dieu che FSK. Mot bo phat FSK cung du-oc xay dyng tren co* SO" vi dieu khien CY8C27443 de phuc vu cho viec Idem tra hoat dong ciia bo giai dieu che.