Phát triển các công nghệ nhúng tiên tiến trong các hệ thống thiết bị thông minh phục vụ đo lường điều khiển và truyền thông

Hoi nghi Khoa hoc ky mim 35 ndm \ 'iin Khoa hoc vd Cong nghi Viit Nam - Hd Not 10 2010<br /> <br /> <br /> <br /> PHAT TRIEN CAC CONG NGHE NHUNG TIEN TIEN TRONG<br /> CAC HE THONG THIET BI THONG MINH PHUC VU DO LU^ONG<br /> DIEU KHIEN VA TRUYEN THONG<br /> Thai Quang Vinh<br /> Vien Cong nghe thong tin<br /> 18- Hoang Quoc Viet, Cau Giay, Ha Noi<br /> Email: tqvinh@,ioit.ac.vn<br /> <br /> <br /> Tom tat:<br /> Qud trinh nghiin ciru vd ung dung cdc hi thdng nhiing cho thdy do tinh da<br /> dgng ciig cdc chip nin cita hi nhimg vd sir thay ddi tinh chdt cua cdc bdi todn<br /> irng dung trong do ludng. diiu khiin ddi hoi cdn thiit xdy dung cdng cii nhimg<br /> hiiu qua ddp irng nhanh chdng thiit ki hode thgy ddi cdc thom sd phii hgp vdi<br /> tirng irng dung cu thi. Bdo cdo trinh bdy vi md hinh phdt triin cdc hi thdng<br /> nhimg, xdy dung cdng cu nhimg dug trin phdn mim dd hgg kit ndi cdc khdi hdm<br /> chirc ndng tuang irng vdi tgp cdc md dun thudt todn mdu vd cdc khdi hdm ca ban<br /> trong timg ITnh vuc cu thi ciia do ludng diiu khiin. Cdc hi nhimg cd thi lien kit<br /> vdi nhau qua cdc giao thirc truyin thdng nhdm xir ly cdc thudt todn phirc tgp.<br /> thdng minh trong thdi gian thuc. Cdc chirang trinh irng dung nhung cd thi duo'c<br /> xdy dirng nhanh chdng, linh hogt thgy ddi tu cdc td hap cdc thdnh phdn khdi riing<br /> le trong mdi tnrdng gioo diin dd hgg vd true tiip nhiing vdo cdc he nen tiiu<br /> chudn.<br /> Abstract:<br /> Varied master embedded processors and wide-changed of embedded<br /> application in the field of measurement and control call for effective development<br /> tools in design of embedded applieation sofivares. This report presents the<br /> methodologies in design of embedded systems and some results in developing of<br /> embedded sofivare tools based on graphical programming. The function blocks<br /> and basic operation blocks is built on the set of typical algorithms that results<br /> from decomposition and coordination of measurement's and control's tasks. The<br /> object files created by compilation on graphical programmer's host computer is<br /> ready to be transferred to the standard targed embedded system.<br /> <br /> <br /> I. Md DAU<br /> Cac he thong nhiing tren cac chip nen tien tien ngay cang dugc ung dung manh me trong<br /> cac he thong thiet bi do, dieu khien va truyen thong, nai doi hoi toe do xir ly cao . tinh toan<br /> va xu ly phuc tap cac dir lieu. Viec nghien cuu phat trien cac chip nen nhiing doi hoi dinh<br /> hudng lira chon phii hop nham dap img cac yeu cau thuc te thiet ke va che tao cac thiet bi va<br /> he thong cho cac bai toan img dung trong linh \'uc do luang dieu khien va truyen thong. Mo<br /> hinh phat trien cac he thong nhiing tren nen cac chip can phai lira chon phii hgp theo cau true:<br /> lap img dung - lap phan mem he thong - lap phAn vat ly. Day khong phai la lop cku. true<br /> thong nhat de thiet ke cac he thong nhiing. tuy nhien no mang tinh mo dun hoa cao va cho<br /> phep phan loai va xay dung cac cong cu hieu qua thiet ke cac he thdng nhiing c6 kha nang<br /> <br /> <br /> 95<br /> Tieu ban: Cong nghi thong tin - Tir dong hod - Cong nghi Vii tru ISBN: 978-604-913-010-6<br /> <br /> <br /> <br /> thich ung nhanh vai cac thay doi cua cac bai toan iing dung. Ciu true mo dun hoa va phan lop<br /> cua cac he thdng nhiing chu yeu dugc chia theo chirc nang va tinh den quan he phirc hgp giira<br /> cac thanh phan he thong.<br /> II. PHAT TRIFN LCn* TTNG DUNG HE THONG NHUNG<br /> ciu tnic phan ra - tong hgp doi vai cac bai toan do luang di§u khien, xir ly tin hieu va<br /> truy8n thong [5,6] eo thi hinh thanh tong quat nhieu tap hgp cac bai toan ca sa phan cap, lien<br /> quan l§n nhau, trong do doi vai dieu khien ca ban la cac bai toan on dinh che do lam viec ciia<br /> ddi tugng cong nghe dual tac dgng cua nhieu va cac bai toan toi uu cac che do lam viec do.<br /> Cac bai toan phu trg bao gdm lien quan den nhan dang vai cac dac tinh khdng xac dinh ban<br /> dAu ciia doi tugng cdng nghe, lien quan den do luong va xir ly sd lieu nhu lgc sd, tuyen tinh<br /> hda, ndi suy, ngoai suy, kiSm tra, xir ly thdng ke danh gia va uac lugng trang thai... Cac thuat<br /> do va dilu khiln phiic hgp dugc tdng hgp bang each td chiic ket ndi cac thuat toan mau giai<br /> cac bai toan co sd theo cac td hgp khac nhau tuang ung vdi muc tieu dieu khien. Thu vien<br /> thuat toan va chuang trinh mau tuong img vdi cau triic phan cap cac bai toan ca sd vdi day dii<br /> chirc nang do ludng va dieu khien dugc xay dung thanh tap tdi thieu va tieu chuan cac md<br /> dun va dugc chia thanh cac nhdm sau:<br /> - Nhdm kiem tra, do ludng va xir Iy ban dau cac thdng tin sd lieu<br /> - Nhan dang va danh gia cac trang thai ciia ddi tugng dieu khien<br /> - Xac dinh dac tinh va md hinh hda<br /> - Dieu khien vdi chat lugng cho trudc<br /> - Tdi uu cac che do gan tinh ciia qua trinh<br /> - Tdi uu cac che do ddng<br /> Cac khdi ham ea ban hd trg xir ly tin hieu va trao ddi dii lieu dugc td chiic thanh cac nhom<br /> chirc nang khac nhau :<br /> - Nhdm cac ham sd hgc<br /> - Nhdm cac ham logic<br /> - Nhdm cac ham truyen thdng<br /> - Nhdm cac ham xir ly tin hieu sd<br /> - Nhdm cac ham chung<br /> - Nhdm cac ham tao tin hieu<br /> - Nhdm cac ham bien ddi (transform)<br /> - Nhdm cac ham hien thi<br /> - Nhdm cac ham cira sd (Window functions)<br /> - Nhdm cac ham td chirc vao/ra....<br /> Thu vien cac md dun thuat toan va chuang trinh mau tuong ung theo cac nhdm tren_trinh bay<br /> tren bang 1:<br /> Kiem tra - xu ly thong ke<br /> Bdng I<br /> <br /> Hieu chinh va tuyen Kiem tra do tin cay<br /> Lgc so li?u Ndi suy Ngoai suy<br /> tinh hda sd lieu<br /> <br /> Tinh toan danh gia Tinh toan ham tuong Kiem tra cac gia thiet<br /> cac thdng ke quan thdng ke<br /> <br /> <br /> <br /> 96<br />  Hgi nghi Khoa hoc ky' niim 35 ndm Vien Khoa hoc vd Cong nghi Viet Nam - Hd Ngi 10/2010<br /> <br /> <br /> <br /> Nhdn dgng - ddc tinh hda - ddnh gid trang thdi<br /> <br /> Nhan dang cac ddi Nhan dang cac kenh<br /> Nhan dang ddi tugng tinh Nhan dang cac<br /> tugng tinh. tuyIn kenh nhieu dieu khien<br /> dang binh phuang<br /> tinh<br /> <br /> <br /> Nhan dang toa Xac dinh dac tinh ddi Danh gia trang<br /> Giai tich hdi quy<br /> dd tugng thai<br /> <br /> Diiu khien vdi chdt luang chg trudc<br /> Dieu chinh PID Dieu chinh hai<br /> Dieu chinh Tinh toan tham Bg<br /> nhieu vdng quan hoac ba trang dieuchinh<br /> PID mdt vdng sd tdi uu PID<br /> he thai PID toi uu<br /> Diiu khiin tdi uu trong che tTnh<br /> Ph. phap don hinh Ph. phap phan bd tai tdi uu Ph. phap phan bd bang tdi uu<br /> <br /> Diiu khien tdi uu trong che do ddng<br /> <br /> Thiet ke giai tich dieu Quy hoach tdi uu theo thdi On dinh toa do tdi<br /> khien gian uu<br /> <br /> Md hinh hgd qud trinh cdng nghi<br /> Md hinh hda ddi Md hinh hda Cac module Tinh toan Tinh toan Ve dd thi<br /> tugng theo ddi tugng ham truyen ham thdi ham tan<br /> ph.trinh trang theo ham dat mau gian sd<br /> thai truyen dat<br /> <br /> <br /> Cac md dun thuat toan mau dugc xay dung thanh cac md dun chuang trinh mau hoac bang<br /> cac cdng cu lap trinh truyen thdng C/Crossassembler/linker hoac bang td hgp cac khdi ham<br /> CO ban trong nhdm hd trg ndi tren va ket ndi thdng qua lap trinh dd hga .<br /> Cac khdi ham ca ban trong phan mem dd hga dugc md ta bang cac bieu tugng vdi cac thdng<br /> sd vao/ra va gidi ban viing lam viec. Phan Idn cac khdi ham dugc xay dung tir ma ngudn C va<br /> bien dich cheo sang ma assembler cua chip co sd ciia he nhiing nhu cac khdi ham trong cac<br /> nhdm sd hgc, logic, xir ly tin hieu sd, bien ddi...Cdn cac khdi ham khac lien quan den cac file<br /> vao/ra tao tin hieu, mdt sd ham trong nhdm xir ly tin hieu... deu dugc true tiep xay dung tir<br /> ma ngudn assembler phii hgp vdi timg he nhiing tieu chuan. Cac khdi ham vdi cac bieu thirc<br /> tinh phiic tap (lgc, bidn ddi tin hieu...) ngoai phuang phap xay dung bang thuat toan tinh<br /> true tilp, cdn cd the dugc thilt kl dd hoa ket ndi tir cac khdi ham ca ban khac. Hinh 1.1 minh<br /> hoa khau lgc cd ham truyen dat:<br /> <br /> y(Z-') b,+b^Z'' +b^Z-<br /> H(Z-') = (2.1)<br /> x ( Z " ' ; fifo +g^Z~^ +a,Z''^<br /> <br /> dugc md ta bang dd hoa phan cap tir cac khdi ham ca ban hon<br /> j ( z " ' ) x ( a ^ + a , z - ' + a , z - - ) = x(z"')x(6o+6,z"'+&2z")<br /> <br /> <br /> <br /> 97<br /> Tiiu ban: Cong nghi thong tin - Tir dong hod - Cong nghi Vii tru ISBN: 978-604-913-010-6<br /> <br /> <br /> <br /> <br /> Gainl<br /> ^B<br /> Five Input Add 1<br /> bl<br /> -k<br /> Deldv 2 Gam 2 Delay 3<br /> <br /> <br /> ao=l<br /> <br /> Delay 1 Gain 3<br /> <br /> z' Gain 4<br /> <br /> <br /> <br /> <br /> Gain 5<br /> <br /> <br /> <br /> <br /> Hinh 2.1 Do hoa phan cap khau loc so H(Z" )<br /> <br /> <br /> HI. XAY DUNG CAC ITNG DUNG TRUC TIEP VAO HE THONG NHUNG<br /> Cdng cu Compiler/Assembler/Linker truyen thdng la each thdng thudng tao ma thirc<br /> hien eae thuat toan img dung cu the tren cac he (chip) nen ciia he thdng nhiing. Ca che nay<br /> bao gdm mdt hoac vai td hgp tien xir ly, dich va bien dich cheo tao ma ddi tugng. Sau khi cac<br /> file ddi tugng ket ndi vdi cac file thu vien can thiet tao thanh cac file ma may va san sang nap<br /> vao he (chip) nen ciia he thdng nhiing. Tuy nhien de tao ra chuong trinh thuc thi (exe.) thdi<br /> gian thuc cho he thdng nhiing ddi hdi nhieu cdng siic hieu chinh, sir dung nhieu phuang phap<br /> khac nhau bao gdm tir md phdng he thdng, danh gia thdi gian thuc tren PC. Hinh 3.1 [1] md<br /> ta qua trinh xay dung chuong trinh img dung cho he thdng nhiing tir he phat trien theo qui<br /> trinh thdng thudng trong dd tien xir ly (preprocessor) nham td chirc va td chirc lai file ngudn<br /> phii hgp vdi cac he phat trien cu the de de dieh va thich hgp cho md phdng tren PC phii hgp<br /> vdi ldp phan mem he thdng va ldp phan ciing ciia he phat trien.<br /> <br /> May chu (He phat trien) He thong nhung<br /> <br /> Preprocessorss — • Compiler -• Linker Lop irng dung<br /> <br /> Lop phan mem he thong Lop phan mem he thong<br /> <br /> Lop phan cimg Lop phan ciing<br /> <br /> Hinh 3.1. Quy trinh tao chuong trinh iing dung cho he thdng nhiing<br /> Han che ciia nhung phuang phap thilt kl mang tinh trung gian la thieu kha nang md ta phAn<br /> cung he nen (ldp phan mem he thdng va ldp phin cimg) ciia he thdng nhiing tren do se nhiing<br /> cac ma ddi tugng sinh ra tir thuat toan dd hoa. De cd the nhan dugc mdt file thuc thi hoan<br /> chinh can qua trinh hieu chinh {mk kha nhilu cdng siic va thdi gian) cac ma ddi tugng theo<br /> cau hinh he nen nhiing. Dac dilm chung ciia cac phuang phap nay la sau khi thuat toan duac<br /> <br /> 98<br />  Hoi nghi Khoa hoc ky niim 35 ndm Viin Khoa hoc vd Cong nghe Viet Nam - Hd Noi 10/2010<br /> <br /> <br /> <br /> xay dung va kilm chiing qua md phdng, thilt kl ket ndi cac khdi ham cd the tao ra ma ngudn<br /> C hoac assembler va tiep tuc thuc hien hieu chinh thiet kl. Ma ngudn cudi cimg dugc tao ra<br /> cd thi duac sir dung nap vao he nIn bang cac cdng cu C compiler/assembler/linker (hinh<br /> 3.2).<br /> De cd thi phat triln cac he thdng nhiing tren nhieu loai chip nen thich irng ddi vdi cac loai<br /> img dung khac nhau can thilt dua ra mdt phuong phap tao ma ddi tugng hieu qua tir ket ndi<br /> dd hga cac md dun chuong trinh mau. Van de bieu dd khdi trong thiet ke (graphical<br /> proramming) da dugc nhieu hang Idn nghien ciiru trong nhieu nam va dua ra nhieu phuang<br /> phap lap trinh dd hga hieu qua nhu Labview, MatLab, Visual Designer, RIDE... Phat trien<br /> thuat toan trong lap trinh dd hga cung tuong tu nhu phat trien trong C bdi vi cac bien, toan<br /> hang, bieu thuc, va cac ham dugc diing de tao ra cac ham khac va toan bd chuang trinh. Su<br /> khac nhau d day la mdt ben xay dung tren mdi trudng dd hga, mdt ben tren ca sd van ban.<br /> Phuang phap nay dac biet him ich cho nhirng ngudi thiet ke cd kinh nghiem ban che trong eae<br /> cdng cu phat trien thuat toan nguyen ban truyen thdng C, assembly hay nhiing cdng cu tuong<br /> tu khac. Do do phuang phap cho phep tao ra kha nang thuc hien he nhiing trong thdi gian<br /> thuc, kha nang hd trg mdt sd lugng cac vi xir ly khac nhau cho phep chuyen kha de dang tir<br /> hg vi xir ly nay sang hg khac. Vdi kien tnic phan mem md, ta cd the tao ra va md rdng cac<br /> thanh phan mdi mdt each de dang.<br /> Phuang phap thiet ke ca sd thanh phan tao cho ngudi thiet ke khdng phai viit cac ma ham<br /> thuat toan tir vach xuat phat. Thay vao dd, ngudi thiet ke cd the md xe toan bd thuat toan<br /> thanh cac nhdm rieng biet - cac hop den (process), ma mdi mdt nhdm thuc thi mdt nhiem vu<br /> rieng. Theo each nay, img dung nhiing thdi gian thuc cd the dugc xay dung tir cac thanh phan<br /> khdi rieng le. Vi the, mdt each de dang va nhanh chdng, ta cd the xay dung cac thuat toan va<br /> xuat true tiep ma ddi tugng trong pham vi mdi trudng ma khdng yeu cau compiler C hay<br /> assembler va nhiing vao cac chip nen ciia he thdng nhiing .<br /> PC-based<br /> simulation<br /> Process<br /> 1<br /> ^ J Object<br /> code<br /> Process Process<br /> 3 4 n Process<br /> C source file<br /> <br /> Process 6 1<br /> 2 Process<br /> 5<br /> J C compiler<br /> <br /> 1<br /> He nen<br /> <br /> <br /> <br /> <br /> Hinh 3.2. Thiet ke dd boa cac thuat toan va minh hoa cac phuang phap khac nhau tao ma<br /> ddi tugng<br /> Cac cdng cu nhiing cac ung dung thdi gian thuc cho cac he thdng nhung dam bao true tiep<br /> tao ra ma ddi tugng cho chip nen he nhiing thdng qua viec thiet ke ket ndi cac khdi ham<br /> mong mudn, xac lap ddng dii lieu, ket ndi logic cd dieu kien giira cac khdi ham va lira chgn<br /> cac tham sd phii hgp. De dam bao cac dieu kien ket ndi, tieu chuan hda ddng dir lieu va dac<br /> biet xac dinh cac thdng sd vao/ ra khi tao ma ddi tugng cua chuong trinh img dung nhiing<br /> cAn thiet phai tieu chuan hda cac he nen. He nen tieu chuan ciia he thdng nhiing cd cau tnic<br /> tdi thieu va dugc md ta d hinh 3.3. Cau tnic chung cua he nen tieu chuan tdi thieu tren chip<br /> nen bao gdm cac thanh phan ca ban sau: he chip xir ly, mach giao tiep vao ra analog vdi cac<br /> <br /> 99<br /> Tieu ban: Cong nghe thong tin - Tu dong hod - Cong nghi I ii tru ISBN: 978-604-913-010-6<br /> <br /> <br /> <br /> tiln xir ly tin hieu phii hgp vdi cac iing dyng, cac giao dien kit ndi vdi PC (cdng LPT. USB<br /> va serial) va cac giao tiep md rdng he thdng. Trong cdng nghiep \'a tren thi trudng cho the<br /> th4y cac chip nIn tieu chuan dang DSK, EVM kh..<br /> <br /> Flash memorv<br /> •< '<br /> <br /> yo •4 1<br /> expansion ^ 1<br /> Analog<br /> • A23-A0<br /> -4— D31-D0 Serial AlC<br /> Control port ^<br /> ft<br /> TMS320CXX Analog<br /> out<br /> Parallel port<br /> 4— n IV<br /> interface<br /> • " 1'<br /> ^—' XDS510<br /> MPSD Port Interface<br /> <br /> <br /> Hinh 3.3. Cdu tnic chung ciia he nen tieu chudn tren nen DSP TMS320CXX<br /> <br /> Tep ma ddi tugng trudc khi nap (nhiing) vao chip nen da cd the kiem tra tinh diing dan thdng<br /> qua thuc hien true tiep tren he nhung da lira chgn, dtr lieu cd the dugc quan sat mdt each sinh<br /> ddng d bat ky diem nao tren sa dd thiet ke dd hoa tren may chu . Bang each bd xung cac khdi<br /> chuang trinh assembler khdi ddng eae thanh phan vao/ra trong AIC va ket ndi vdi chip nen<br /> he nhung cho phep mdi trudng lap trinh dd hoa xay dung cac ma ddi tugng phii hgp vdi nhieu<br /> he nen nhiing tieu chuan tdi thieu dang DSK, EVM....<br /> <br /> Process<br /> 1<br /> Process Process<br /> 3 4 ^<br /> Process<br /> Process • • He nen<br /> 6<br /> 2 tieu chuan<br /> Process<br /> 5 1<br /> Process<br /> I/O<br /> <br /> <br /> Htnh 3.4 Phdt triin chuang trinh ung dung cho cdc hi nin tiiu chudn<br /> <br /> IV. MO HINH TRUYEN THONG MO CUA HE THONG NHUNG<br /> Kien tnic truyen thdng ciia cac he thdng nhiing dugc xay dung tren nen ldp ph4n cung va<br /> ldp phan mem he thdng va cac thanh phan ciia kiln tnic dd phu thugc cu thi vao khoang each<br /> giira cac thiet bi nhiing, mdi trudng truyen dan va thudng dugc quy chieu din md hinh kiln<br /> true tuong ung. Ddi vdi cac he thdng nhiing cac thanh phan truyen thdng cd thi nhdm lai<br /> tuong img vdi cac ldp ciia md hinh OSI trong dd ldp vat ly qui chieu tdi ldp phSn ciing cua<br /> h | thdng nhiing. cac ldp 2-4 trong OSI qui ve ldp phan mem he thdng va cac ldp cdn lai quy<br /> ve ldp ling dung ciia he thdng nhung nhu md ta hinh 4.1<br /> <br /> <br /> <br /> <br /> 100<br />  Hoi nghi Khoa hoc ky niim 35 ndm \ 'tin Khoa hoc vd Cong nghe Viet Nam ^ Hd Ngi 10/2010<br /> <br /> <br /> <br /> Lop irng dung<br /> <br /> Lop phan mem he thong<br /> <br /> <br /> TCP/IP Stack GSM<br /> BSSMAP DTA?<br /> <br /> GPRS<br /> <br /> SCCP BSSAP BSSM.4P IDSN<br /> <br /> <br /> <br /> Lop phan cirng<br /> <br /> LAN WAN<br /> <br /> i<br /> •Wireless Wired Wireless Wired<br /> <br /> <br /> IEEE802.il *• GPRS !-• RS232<br /> Wireless Radio&IR<br /> GSM ^><br /> Bluetooth Radio<br /> & Broadband<br /> <br /> <br /> <br /> <br /> Hinh 4.1. Md hinh OSI cita kiin triic truyen thdng ciia hi thdng nhiing<br /> <br /> <br /> Trong thiet ke cac he thdng nhung tham gia trong mang truyen thdng vdi cac ung dung phan<br /> tan trong khdng gian rdng nhu lien quan den mdi trudng, giao thdng...ddi hdi iing dung<br /> mang khdng day, dac biet ddi vdi van de ciia tinh toan khap nai (ubiquitous computing) ket<br /> hgp giira thu thap dir lieu true tiep nhieu thdng sd vdi phat hien tai nguyen va phan tuyen.<br /> Viec xay dung mang khdng day cac he thdng nhiing la da dang vdi su tham gia nhieu chip<br /> nen trong he thdng nhiing . Ddi vdi mang LAN hoac mang WAN deu cd cac giai phap cu the<br /> lien quan din chuSn (RS232, Ethernet, 802.11, 802.15.4, Bluetooth...) hoac GSNLGPRS...<br /> <br /> V. MOT SO HE THONG NHUNG TIEN TIEN iTNG DUNG TRIEN KHAI<br /> 5.1. He thdng do va xir ly sd heu da nang MDA104<br /> He thdng do va xir ly sd lieu da nang MDA104S xay dung tren cdng nghe PC 104 gdm cd<br /> cac thiet bi dau cudi do xa MDA104S va truyen ve may tinh xir ly trung tam, ciing vdi cac<br /> ph4n mem cdng cy nhiing MDATool cho he PC 104 tinh toan, hien thi, xir ly, canh bao, luu<br /> trii chay tren he dieu hanh Windows qua mang RS2485/Ethemet.<br /> He thong do va xir ly sd lieu da nang MDA104S gdm cd :<br /> • Thilt bi do va xir ly dir lieu da nang MDAI04S<br /> • Phan mem nhiing MDARUN chay tren thilt bi MDA104S do va xu ly dir lieu da nang<br /> vdi nhieu thuat toan thdng minh.<br /> <br /> <br /> 101<br /> Tiiu ban: Cong nghi thong tin - Tu dong hod - Cong nghi ' ii tru ISBN: 978-604-913-010-6<br /> <br /> <br /> <br /> • Cdng cu MDABUILDER chay tren PC thilt kl giao dien van hanli cho MDA104S.<br /> • Phan mim MDAVIEWER giam sat va thu thap dii lieu tir xa qua mang MDASCADA<br /> quan ly cac thilt bi MDA104S theo chu4n RS485/Ethemet.<br /> He thdng do va xir ly sd lieu da nang MDA104S bao gdm 02 cAp mang tru)'en thdng:<br /> Mang MDA-DevieeNet ket ndi cac thiet bi do, sensor \o\ MDA104S qua cac cdng<br /> DI/DO/AI/AO/RS232/ RS48 \'a mang MDA-SCADA kit ndi cac thilt bi thu thap sd lieu<br /> MDA104S \'di may chii qua chuan RS485 hoac Ethernet.<br /> <br /> <br /> M a y tiiih RlDABiiider<br /> chu<br /> <br /> MDA-SCADA<br /> RS232/RS485/ETHERHET<br /> <br /> <br /> MDA104S ]\rD.A.104S<br /> <br /> DI/D 0/AI/AO/RS23 2/RS 48 5<br /> <br /> <br /> <br /> <br /> OH<br /> <br /> <br /> <br /> <br /> « a Q<br /> «<br /> MDA-DeviceNet<br /> <br /> <br /> Phan mem nhiing MDARUN tren thiet bi MDA104S cd chirc nang ca ban sau:<br /> • Dgc/ghi sd lieu tir cdng vao/ra DI /AI, DO/AO<br /> • Truyen thdng vdi thiet bi ngoai vi qua RS232/RS485.<br /> • Hien thi dd hoa cac ddi tugng Button/Text/Chart/Datalog/Led thilt kl tren may tinh chii.<br /> • Tru)'en thdng xdi md}' tinh chii qua RS232/RS485/ Ethernet.<br /> • Quan ly ca sd dii lieu viing nhd he thdng Tag database<br /> • Luu dir lieu dudi dang ca sd dir lieu MSAccess.<br /> • Bao cao thdng ke dir lieu va trang thai canh bao<br /> MDARun<br /> <br /> Network Quan ly c h ^ d6 t r u y i n thong k4t n6l<br /> Configuration trong mang M D A - S C A D A<br /> <br /> <br /> Tag Q u ^ n ly c a s6' d y lieu v u n g nhdr<br /> Database h ^ thang D I / D O / A I / A O / D B B / D B W<br /> <br /> <br /> Screen<br /> •- Hien thi m^n hinh cSng nghe d a n g do hoa<br /> Viewer<br /> <br /> <br /> Alarm T h o n g ke trang thai canh bao History<br /> Logging cua cac vung n h d D I / D O / A I / A O / D B B / D B W<br /> <br /> <br /> Data T h o n g ke du' lieu History cua cac<br /> Logging vung n h a D I / D O / A I / A O / D B B / D B W<br /> <br /> <br /> User Quan ly tai khoan ngi>6i d u n g<br /> Management<br /> <br /> Hinh 5.2 ; Sa dd khdi cdu triic phdn mim MDARun<br /> <br /> 102<br />  Hoi nghi Khoa hoc ky niim 35 ndm Viin Khoa hoc vd Cong nghi Viet Nam - Hd Not 10/2010<br /> <br /> <br /> <br /> 5.2. Thiet kl chuang trinh nhiing do va dieu khien cho cac he DSP tieu chuan<br /> Sir dung phan mim cdng cu lap trinh dd hoa Block Diagram & RIDE vdi cac khdi ham ca<br /> ban va cac khdi ham bd xung trong bang 1 cd the xay dimg cac phan mem nhiing do va dilu<br /> khien tren cac he DSP tieu ehuAn h.2.3. Hinh 5.3, hinh 5.4 trinh bay vi du thilt kl he dilu sd<br /> tir cac khdi ham ca ban Substractl, Gain, Hierarchy biquad 02 (PID), Hierarchy biquad 03<br /> (ddi tugng dieu khiln) va cac khdi vao ra analog AI, AO tuong ung vdi AIC tren he DSP tieu<br /> chuSn dang DSK TMS320VC33.<br /> 2-Amplitude<br /> <br /> <br /> <br /> <br /> Unit Step<br /> <br /> <br /> <br /> Gam 1 Hierarchy BiquadO Sichy BiquadO 3<br /> <br /> Unit Step Respond l l i m e<br /> <br /> <br /> <br /> I Subtract<br /> <br /> <br /> <br /> <br /> 0,0453 ( Z ' ' + 0,904 Z ' ^ )<br /> Go(Z) =<br /> (1 - 0,905 Z ' ' ) { 1 - 0 , 8 1 9 Z - '<br /> 1 - 1,724 Z ' ' + 0.782 Z ' ^ Unit Step Respond 2<br /> Gc(Z) =<br /> 1-Z-'<br /> <br /> <br /> Hinh 5.3. Thiet ke do hog vd md phdng he dieu khien sd<br /> <br /> <br /> Cac bd lgc sd dugc sir dung rdng rai ca trong viing tin sd thip lin tin sd cao nhd kha nang xir<br /> ly tin hieu tdc do cao ciia cac mach DSP, cd thi thay ddi cac thdng sd bd lgc thich nghi vdi sir<br /> thay ddi tin hieu thdng qua thay ddi chuang trinh. Cac he trich mau trong cac he thdng do<br /> ludng va dieu khien thudng diing cac bd lgc IIR dang :<br /> <br /> <br /> m=0 N{Z)<br /> //(Z) = £/7,Z-' =<br /> D{Z)<br /> <br /> <br /> trong dd N(Z) va D(Z) la cac da thiic bac m va n tuong img.<br /> Bang each sir dung kit ndi lien tilp cac khdi ham biquad 01, biquad 02, biquad 03 cd thi thilt<br /> ke va md phdng bd lgc IIR dang Butterworth bac 5 tren Block Diagram (hinh 5.4) va dugc<br /> nhiing vao he DSP tieu chuan vdi khdi ham vao/ra analog tuong iing.<br /> <br /> <br /> <br /> <br /> 103<br /> Tieu ban: Cong nghi thong tin - Tir dong hod - Cong nghi I 'ii tru ISBN: 978-604-913-010-6<br /> <br /> <br /> <br /> <br /> Noise Generator 1<br /> <br /> <br /> <br /> Biquad 1 Biquad2 Biquad 3 Gain!<br /> <br /> <br /> <br /> <br /> Sine Signal Filtered S i g n a l<br /> <br /> <br /> <br /> <br /> Hinh 5.4 Bo loc so Butterworth ^„„=v4„„„.c<br /> <br /> <br /> <br /> VI. K E T LUAN<br /> De trien khai img dung cac he thdng nhiing hieu qua trong ITnh vuc do ludng dieu khien va<br /> truyen thdng tren nen cac chip nen tien tien can thiet xay dung cdng cu nhiing phii hgp vdi su<br /> da dang ciia cac chip nen va cd kha nang dap img linh boat ddi vdi sir thay ddi ciia cac bai<br /> toan img dung. Phat trien phan mem nhiing dua tren ca sd cac cdng cu lap trinh dd hga ket<br /> ndi cac khdi ham chirc nang tuong ung vdi tap thuat toan mau phuc vu cho cac bai toan do,<br /> dieu khien va xir ly tin hieu va truyen thdng la mdt hudng phat trien cho phep thiet ke nhanh<br /> chdng va linh boat cac thiet bi va he thdng nhiing cd kha nang dap img thdng minh sir thay<br /> ddi cac yeu cau ciia cac bai toan irng dung.<br /> <br /> <br /> TAI LIEU THAM KHAO<br /> 1. Tammy Noergaard. Embedded Systems Architecture. Newnes, 2005.<br /> 2. TMS320 DSP Development Support Reference guide. User's guide,TI. 2004<br /> 3. Advantech Technologies PCM-3370 User's Manual, 2"''Edition 2004<br /> 4. Hypersignal Block Diagram User Manual Hyperception Inc.,2001<br /> 5. M.G. Singh, A. Titli. System: Decomposition Optimisation and Control. Pergamon<br /> Press, 1989.<br /> 6. Richard G. Lyons. Understanding Signal Processing. Addition Wesley Longman Inc.<br /> 1998.<br /> 7. Cac kit qua dl tai nhanh Nha nude KC03-09, VAST06-07, PTNTD vl he thdng<br /> nhiing DSP<br /> <br /> <br /> <br /> <br /> 104<br />