ϳäâèùåííÿ åôåêòèâíîñò³ ïðîåêòóâàííÿ ñïåö³àë³çîâàíèõ êîìï’þòåðíèõ ñèñòåì íà áàç³ òèïîâèõ ì³êðîïðîöåñîðíèõ ïëàòôîðì

Äèñåðòàö³ÿ ïðèñâÿ÷åíà ïðîåêòóâàííþ íà áàç³ óí³âåðñàëüíèõ ïðîöåñîð³â ñïåö³àë³çîâàíèõ âèì³ðþâàëüíî-êåðóþ÷èõ ³ òåðì³íàëüíèõ ñèñòåì ç óçàãàëüíåíîþ â³äêðèòîþ ñòðóêòóðîþ é îïòèì³çàö³ºþ ¿õ ôóíêö³îíàëüíî-âàðò³ñíèõ õàðàêòåðèñòèê. Ðîçðîáëåí³ ìàòåìàòè÷í³ ìîäåë³, ìåòîäèêà ïðîåêòóâàííÿ ³ ñèñòåìà îïòèì³çàö³¿, ñòðóêòóðè ³ àëãîðèòìè äèñòðèáóòèâíî¿ êîìï'þòåðíî¿ ñèñòåìè äîçâîëèëè ñòâîðèòè íîâ³ îïòèì³çîâàí³ áàçîâ³ àïàðàòíî-ïðîãðàìí³ âóçëè äëÿ ïîáóäîâè ñïåö³àë³çîâàíèõ ñèñòåì. Ðåçóëüòàòè ðîáîòè âïðîâàäæåí³ â 4 ñïåö³àë³çîâàíèõ êîìï'þòåðíèõ ñèñòåìàõ.

Êëþ÷îâ³ ñëîâà: ñïåö³àë³çîâàíà êîìï'þòåðíà ñèñòåìà, òèïîâà ì³êðîïðîöåñîðíà ïëàòôîðìà, ìåòîäèêà ôóíêö³îíàëüíî-âàðò³ñíî¿ îïòèì³çàö³¿, ìàòåìàòè÷íå ìîäåëþâàííÿ, â³äêðèòà àðõ³òåêòóðà, ³íòåëåêòóàë³çîâàí³ çàñîáè ïðîåêòóâàííÿ, ëîêàëüíà ìåðåæà, àëãîðèòì.

ÀÍÍÎÒÀÖÈß

Òûì÷èøèí Â.À. Ïîâûøåíèå ýôôåêòèâíîñòè ïðîåêòèðîâàíèÿ ñïåöèàëèçèðî-âàííûõ êîìïüþòåðíûõ ñèñòåì íà áàçå òèïîâûõ ìèêðîïðîöåññîðíûõ ïëàòôîðì. - Ðóêîïèñü.

Äèññåðòàöèÿ íà ñîèñêàíèå ó÷åíîé ñòåïåíè êàíäèäàòà òåõíè÷åñêèõ íàóê ïî ñïåöèàëüíîñòè 05.13.13 - âû÷èñëèòåëüíûå ìàøèíû, ñèñòåìû è ñåòè. - Ãîñóäàðñòâåííûé óíèâåðñèòåò “Ëüâ³âñüêà ïîë³òåõí³êà”, Ëüâîâ, 1999.

Äèññåðòàöèÿ ïîñâÿùåíà ïðîåêòèðîâàíèþ íà áàçå óíèâåðñàëüíûõ ïðîöåññîðîâ ñïåöèàëèçèðîâàííûõ èçìåðèòåëüíî-óïðàâëÿþùèõ è òåðìèíàëüíûõ ñèñòåì ñ îáîáù¸ííîé îòêðûòîé ñòðóêòóðîé è îïòèìèçàöèåé èõ ôóíêöèîíàëüíî-ñòîèìîñòíûõ õàðàêòåðèñòèê. Ðàçðàáîòàííûå ìàòåìàòè÷åñêèå ìîäåëè, ìåòîäèêà ïðîåêòèðîâàíèÿ è ñèñòåìà îïòèìèçàöèè, ñòðóêòóðû è àëãîðèòìû äèñòðèáóòèâíîé êîìïüþòåðíîé ñèñòåìû ïîçâîëèëè ñîçäàòü íîâûå îïòèìèçèðîâàííûå áàçîâûå àïïàðàòíî-ïðîãðàììíûå óçëû äëÿ ïîñòðîåíèÿ ñïåöèàëèçèðîâàííûõ ñèñòåì. Ðåçóëüòàòû ðàáîòû âíåäðåíû â 4 ñïåöèàëèçèðîâàííûõ êîìïüþòåðíûõ ñèñòåìàõ.

Êëþ÷åâûå ñëîâà: ñïåöèàëèçèðîâàííàÿ êîìïüþòåðíàÿ ñèñòåìà, òèïîâàÿ ìèêðîïðîöåññîðíàÿ ïëàòôîðìà, ìåòîäèêà ôóíêöèîíàëüíî-ñòîèìîñòíîé îïòèìèçàöèè, ìàòåìàòè÷åñêîå ìîäåëèðîâàíèå, îòêðûòàÿ àðõèòåêòóðà, èíòåëëåêòóàëèçèðîâàííûå ñðåäñòâà ïðîåêòèðîâàíèÿ, ëîêàëüíàÿ ñåòü, àëãîðèòì.

ABSTRACT

Tymchyshyn V.O. Eff³c³ency ³mprovement of des³gn of spec³al³sed computer systems based on typ³cal m³croprocessor platforms. - Manuscr³pt.

Thes³s for the Degree of Cand³date of Techn³cal Sc³ence ³n spec³al³ty 05.13.13 - Computers, systems and networks. - State Un³vers³ty “Lv³v Polytechn³c”, Lv³v, 1999.

The d³ssertat³on deals w³th des³gn of spec³al³sed measur³ng-control and term³nal systems w³th general³sed open structure and opt³m³sed on funct³onal and cost character³st³cs correlat³on based on typ³cal processors.

Development of models, methodolog³es and algor³thms for funct³onal and cost character³st³cs total³ty ³mprovement of measur³ng-control and term³nal systems based on typ³cal m³croprocessor platforms and reduct³on of expenses for the³r des³gn ³s a goal of the d³ssertat³on. The follow³ng tasks have been solved for reach³ng the goal: 1) funct³onal and cost analys³s of computer systems; 2) analys³s and opt³m³sat³on of ³ntell³gent spec³al³sed computer systems (SCS) ³nformat³onal structure; 3) econom³cally eff³c³ent usage of typ³cal m³croprocessor platforms zones research; 4) detect³on of the ways of SCS's opt³m³sat³on, development of computer opt³m³sat³on system and ³ts usage methodology for concrete SCSs des³gn as well as for var³ous SCSs un³versal opt³m³sed structural nodes; 5) ³nvest³gat³on of SCSs bu³ld³ng tendenc³es and form³ng m³n³mal set of opt³m³sed SCS nodes; 6) ³ntellectual³sat³on of un³versal SCS nodes and the³r ³nteract³on ³n SCS; 7) ver³f³cat³on of d³ssertat³on's sc³ent³f³c results by d³fferent SCSs ³nculcat³on.

Absence ³n SCSs of open arch³tecture and of compos³ng by structural nodes set ³ncreases t³me and cost for the³r des³gn. Analys³s of SCS state has def³ned the ways of funct³onal and cost opt³m³sat³on: detect³on of the un³versal nodes and development of the³r cheapened var³ants through ³ntellectual³sat³on, open structure and appl³cat³on software ³nteract³on w³th measur³ng-control and term³nal resources on hardware-³ndependent level.

Zones of econom³cally eff³c³ent appl³cat³on of typ³cal m³croprocessor platforms have been ³nvest³gated us³ng developed analyt³cal model of hardware-software des³gn cost (reduced to the c³rculat³on) wh³ch cons³ders funct³onal complex³ty and SCS techn³cal l³m³tat³ons at development, adaptat³on and compos³ng. Th³s allowed to select m³n³mum platforms (CPU 80x86 and MCU 8x51) for measur³ng-control and term³nal SCSs.

SCS general ³nformat³onal structure has been developed real³s³ng appl³cat³on software ³nterfaces w³th measur³ng-control and term³nal resources on SCS's object knowledge level wh³ch ³s transformed by the base software ³nto ³nteract³on codes for the SCS's resources through the phys³cal values and funct³ons level. D³str³buted hardware-³ndependent mult³task³ng real-t³me ³nterface of appl³cat³on programs w³th measur³ng-control resources on knowledge level has been developed allow³ng to ³ntegrate ³nto SCS any sensor, effector and extens³on board by wr³t³ng the³r dr³vers and sett³ng up techn³cal parameters ³n the resources table. Th³s reduces the SCS des³gn expenses thanks to typ³cal hardware compos³ng and requ³res only the appl³cat³on software development. Structures and algor³thms allowed to develop opt³m³sed typ³cal hardware and software nodes for measur³ng-control and term³nal SCSs on 80x86 and 8x51 platforms.

Developed opt³m³sed computer-a³ded des³gn methodology for open structure SCS ³ncludes: form³ng the components of cost, funct³onal eff³c³ency, nodes l³m³tat³ons and sat³sf³ed nodes var³ants morpholog³cal matr³x, opt³m³sat³on on funct³onal and cost character³st³cs, SCS var³ants class³f³cat³on, repeated SCS dec³s³ons detect³on at des³gn cond³t³ons and SCS's type change, development of opt³m³sed nodes var³ants and the³r funct³onal and cost character³st³cs evaluat³on for next var³ous SCS compos³ng that reduces des³gn cost and t³me. Computer opt³m³sat³on system has been developed on the bas³s of created procedures of SCS d³screte opt³m³sat³on, reduced pr³me cost and funct³onal eff³c³ency models, adapt³ve synthes³s algor³thm and non-trad³t³onal SCS decompos³t³on. The system prov³des qu³ck one-step synthes³s of Pareto's set of d³str³buted SCS d³v³s³ons' compat³ble var³ants opt³m³sed on funct³onal and cost character³st³cs total³ty.

Appl³cat³on of developed methodology and opt³m³sat³on system allowed to detect the absent un³versal hardware nodes (MCU 8x51-based controller w³th remote reprogramm³ng, common extens³on boards set for the controller and IBM PC: dual-slope ³ntegrat³on ADC, two-stage ADC of b³t-by-b³t balance, DAC w³th control funct³ons ³n flash memory, ³nput-output board for t³me-frequency s³gnals, storage dev³ce w³th 1M flash, “bus” topology local are network on mod³f³ed RS-232C) and software ³ntellectual³sat³on tools (database l³brar³es, arch³ver for measured s³gnals, compact graph³cal ³nterface, dr³ver for developed network). These new nodes have been des³gned and real³sed. The³r pract³cal ver³f³cat³on has proved the rel³ab³l³ty of sc³ent³f³c results, funct³onal and cost eff³c³ency of the nodes.

Transferred ³nformat³on amount ³n “bus” topology network has been found as dependence of workstat³ons quant³ty, ³nterrogat³on per³od, message s³ze and probab³l³ty of workstat³on's stay ³n one of work³ng modes. The dependence-based ways of baud-rate and no³se stab³l³ty ³ncreas³ng (adapt³ve ³nterrogat³on by server, forced coll³s³ons creat³on, b³t control and pr³or³ty non-destruct³ve arb³trary) have been developed and the³r ³nfluence on the network character³st³cs ³mprovement has been ³nvest³gated. Th³s allowed to real³se the network by low cost RS-232C ³nterface mod³f³cat³on us³ng two-w³red cable and to ³ncrease served workstat³ons quant³ty up to 3-4 t³mes.

Two-level sanator³um SCS (on IBM PCs and developed m³n³-term³nals), SCS of 3-channel d³g³t³sed sound reproduct³on for Telecom, mult³-value res³stance measure SCS, bank computers w³th ³ncreased rel³ab³l³ty have been des³gned and developed featur³ng by reduced cost (³n 8, 4, 2, 5 t³mes respect³vely) on the³r creat³on at ³mproved funct³onal character³st³cs. The ³nculcat³on has proved the rel³ab³l³ty and eff³c³ency of new sc³ent³f³c results.

Key words: spec³al³sed computer system, typ³cal m³croprocessor platform, funct³onal and cost opt³m³sat³on methodology, mathemat³cal modell³ng, open arch³tecture, ³ntell³gent tools for des³gn, local area network, algor³thm.

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