10 research outputs found

    Π‘Ρ…Π΅ΠΌΠ° ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠΈ сигналов для ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… устройств Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠΊΠΈ Π½Π° основС логичСского дополнСния с ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π΅ΠΌ вычислСний ΠΏΠΎ ΠΏΠ°Ρ€ΠΈΡ‚Π΅Ρ‚Ρƒ

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    Simpler than known structure of the system with error correction in calculations is proposed based on duplication and triplication of blocks with majority principle of choosing the values of signals. It is advisable to use the new fault-tolerant structure for automation devices with combinational logic. In fault-tolerant structure synthesis, the parity method is used to establish the fact of a fault in the main logic unit and the logical complement method is used determine incorrectly calculated output functions and to generate signals for their correction. The method also allows to adjust the values of incorrectly calculated functions. Structural diagram and description of error correction system are given. The synthesis algorithm of control equipment is described with minimization of the technical implementation complexity. The experiment results with control combinational circuits are given, confirming the high efficiency of proposed system structure with error correction.ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π° Π±ΠΎΠ»Π΅Π΅ простая структура систСмы с ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠ΅ΠΉ ошибок Π² вычислСниях, Ρ‡Π΅ΠΌ извСстныС структуры, основанныС Π½Π° Π΄ΡƒΠ±Π»ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ ΠΈ Ρ‚Ρ€ΠΎΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠΈ Π±Π»ΠΎΠΊΠΎΠ² с ΠΌΠ°ΠΆΠΎΡ€ΠΈΡ‚Π°Ρ€Π½Ρ‹ΠΌ ΠΏΡ€ΠΈΠ½Ρ†ΠΈΠΏΠΎΠΌ Π²Ρ‹Π±ΠΎΡ€Π° Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ сигналов. ΠΠΎΠ²ΡƒΡŽ ΠΎΡ‚ΠΊΠ°Π·ΠΎΡƒΡΡ‚ΠΎΠΉΡ‡ΠΈΠ²ΡƒΡŽ структуру цСлСсообразно ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Ρ‚ΡŒ для устройств Π°Π²Ρ‚ΠΎΠΌΠ°Ρ‚ΠΈΠΊΠΈ с ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Ρ†ΠΈΠΎΠ½Π½ΠΎΠΉ Π»ΠΎΠ³ΠΈΠΊΠΎΠΉ. ΠŸΡ€ΠΈ синтСзС отказоустойчивой структуры примСняСтся ΠΌΠ΅Ρ‚ΠΎΠ΄ ΠΏΠ°Ρ€ΠΈΡ‚Π΅Ρ‚Π° для установлСния Ρ„Π°ΠΊΡ‚Π° возникновСния нСисправности Π² ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΠΈΡ€ΡƒΠ΅ΠΌΠΎΠΌ ΠΎΠ±ΡŠΠ΅ΠΊΡ‚Π΅ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄ логичСского дополнСния для опрСдСлСния Π½Π΅ΠΏΡ€Π°Π²ΠΈΠ»ΡŒΠ½ΠΎ вычислСнных Π²Ρ‹Ρ…ΠΎΠ΄Π½Ρ‹Ρ… Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΉ ΠΈ формирования сигналов для ΠΈΡ… ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠΈ. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Π° структурная схСма систСмы с ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠ΅ΠΉ ошибок ΠΈ Π΄Π°Π½ΠΎ Π΅Π΅ описаниС. ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ Π°Π»Π³ΠΎΡ€ΠΈΡ‚ΠΌ синтСза ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΠΎΠ³ΠΎ оборудования с ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ слоТности Π΅Π³ΠΎ тСхничСской Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ экспСримСнтов с ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½Ρ‹ΠΌΠΈ ΠΊΠΎΠΌΠ±ΠΈΠ½Π°Ρ†ΠΈΠΎΠ½Π½Ρ‹ΠΌΠΈ схСмами ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π°ΡŽΡ‚ Π²Ρ‹ΡΠΎΠΊΡƒΡŽ ΡΡ„Ρ„Π΅ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ примСнСния ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΉ структуры систСмы с ΠΊΠΎΡ€Ρ€Π΅ΠΊΡ†ΠΈΠ΅ΠΉ ошибок

    Бпособ построСния сСмСйства ΠΊΠΎΠ΄ΠΎΠ² с суммированиСм с наимСньшим ΠΎΠ±Ρ‰ΠΈΠΌ количСством Π½Π΅ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠΈΠ²Π°Π΅ΠΌΡ‹Ρ… ошибок Π² ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Π²Π΅ΠΊΡ‚ΠΎΡ€Π°Ρ…

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    The research results of the methods for formation of separable sum codes with the minimum number of undetectable errors in data vectors are presented. A formula for counting the number of undetectable errors in data vectors and codes family properties are given. A universal method for formation of such codes is shown, which makes it possible for each value of the data vector length to obtain a whole family of codes that also have different distributions of undetectable errors by type and multiplicity. An example of codes formation, methods for analyzing characteristics, code comparison are presented. A method for synthesizing coders of developed sum codes is suggested.Β Π˜Π·Π»ΠΎΠΆΠ΅Π½Ρ‹ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ исслСдований способов построСния Ρ€Π°Π·Π΄Π΅Π»ΠΈΠΌΡ‹Ρ… ΠΊΠΎΠ΄ΠΎΠ² с суммированиСм с наимСньшим ΠΎΠ±Ρ‰ΠΈΠΌ количСством Π½Π΅ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠΈΠ²Π°Π΅ΠΌΡ‹Ρ… ошибок Π² ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Π²Π΅ΠΊΡ‚ΠΎΡ€Π°Ρ…. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ Ρ„ΠΎΡ€ΠΌΡƒΠ»Ρ‹ подсчСта числа Π½Π΅ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠΈΠ²Π°Π΅ΠΌΡ‹Ρ… ошибок Π² ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½Ρ‹Ρ… Π²Π΅ΠΊΡ‚ΠΎΡ€Π°Ρ… ΠΈ свойства Π΄Π°Π½Π½ΠΎΠ³ΠΎ класса ΠΊΠΎΠ΄ΠΎΠ². ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ ΡƒΠ½ΠΈΠ²Π΅Ρ€ΡΠ°Π»ΡŒΠ½Ρ‹ΠΉ способ построСния Ρ‚Π°ΠΊΠΈΡ… ΠΊΠΎΠ΄ΠΎΠ², Π΄Π°ΡŽΡ‰ΠΈΠΉ для ΠΊΠ°ΠΆΠ΄ΠΎΠ³ΠΎ значСния Π΄Π»ΠΈΠ½Ρ‹ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΎΠ½Π½ΠΎΠ³ΠΎ Π²Π΅ΠΊΡ‚ΠΎΡ€Π° Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ получСния Ρ†Π΅Π»ΠΎΠ³ΠΎ сСмСйства ΠΊΠΎΠ΄ΠΎΠ², ΠΎΠ±Π»Π°Π΄Π°ΡŽΡ‰ΠΈΡ… ΠΊ Ρ‚ΠΎΠΌΡƒ ΠΆΠ΅ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹ΠΌΠΈ распрСдСлСниями Π½Π΅ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠΈΠ²Π°Π΅ΠΌΡ‹Ρ… ошибок ΠΏΠΎ Π²ΠΈΠ΄Π°ΠΌ ΠΈ кратностям. ΠŸΡ€ΠΈΠ²Π΅Π΄Π΅Π½Ρ‹ ΠΏΡ€ΠΈΠΌΠ΅Ρ€Ρ‹ построСния ΠΊΠΎΠ΄ΠΎΠ², мСтодология Π°Π½Π°Π»ΠΈΠ·Π° ΠΈΡ… характСристик, Π° Ρ‚Π°ΠΊΠΆΠ΅ Π΄Π°Π½ΠΎ сравнСниС ΠΊΠΎΠ΄ΠΎΠ² ΠΌΠ΅ΠΆΠ΄Ρƒ собой. ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ ΠΌΠ΅Ρ‚ΠΎΠ΄ синтСза ΠΊΠΎΠ΄Π΅Ρ€ΠΎΠ² Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Π½Ρ‹Ρ… ΠΊΠΎΠ΄ΠΎΠ² с суммированиСм

    Π‘ΠΈΠ½Ρ‚Π΅Π· самопровСряСмых схСм встроСнного контроля Π½Π° основС ΠΌΠ΅Ρ‚ΠΎΠ΄Π° логичСского дополнСния Π΄ΠΎ равновСсного ΠΊΠΎΠ΄Π° Β«2 ΠΈΠ· 4Β»

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    The article explores the peculiarities of self-checking integrated control circuits synthesis by the Boolean complement method based on the "2-out-of-4'' constant-weight code. The article describes the features of integrated control circuits implementation by the Boolean complement method. It is noted that it is possible to synthesize the structures of discrete devices, which have less structural redundancy than in situation of the control circuit implementation by the method of duplication. The effect in structural redundancy reducing is achieved by minimizing the complexity of the control logic block technical implementation and using checkers that are simpler in their structures than the comparator in the system of duplication. The article proposes a method of the integrated control circuit organization based on determining the values of control functions taking into account the maintenance of testability of elements of addition by modulo two in the Boolean complement block and the checker of the "2-out-of-4" code.Π˜ΡΡΠ»Π΅Π΄ΡƒΡŽΡ‚ΡΡ особСнности синтСза самопровСряСмых схСм встроСнного контроля ΠΏΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρƒ логичСского дополнСния Π½Π° основС равновСсного ΠΊΠΎΠ΄Π° Β«2 ΠΈΠ· 4Β». ΠžΠΏΠΈΡΡ‹Π²Π°ΡŽΡ‚ΡΡ особСнности Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ схСм встроСнного контроля ΠΏΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρƒ логичСского дополнСния. ΠžΡ‚ΠΌΠ΅Ρ‡Π°Π΅Ρ‚ΡΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ синтСза структур дискрСтных устройств, ΠΈΠΌΠ΅ΡŽΡ‰ΠΈΡ… ΠΌΠ΅Π½ΡŒΡˆΡƒΡŽ ΡΡ‚Ρ€ΡƒΠΊΡ‚ΡƒΡ€Π½ΡƒΡŽ ΠΈΠ·Π±Ρ‹Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒ, Ρ‡Π΅ΠΌ ΠΏΡ€ΠΈ Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ схСмы контроля ΠΏΠΎ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρƒ дублирования. Π­Ρ„Ρ„Π΅ΠΊΡ‚ Π² сниТСнии структурной избыточности достигаСтся Π·Π° счСт ΠΌΠΈΠ½ΠΈΠΌΠΈΠ·Π°Ρ†ΠΈΠΈ слоТности тСхничСской Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΠΈ Π±Π»ΠΎΠΊΠ° ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΠΎΠΉ Π»ΠΎΠ³ΠΈΠΊΠΈ ΠΈ использования Π±ΠΎΠ»Π΅Π΅ простых ΠΏΠΎ своим структурам тСстСров, Ρ‡Π΅ΠΌ ΠΊΠΎΠΌΠΏΠ°Ρ€Π°Ρ‚ΠΎΡ€ Π² систСмС дублирования. ΠŸΡ€Π΅Π΄Π»Π°Π³Π°Π΅Ρ‚ΡΡ способ ΠΎΡ€Π³Π°Π½ΠΈΠ·Π°Ρ†ΠΈΠΈ схСмы встроСнного контроля, основанный Π½Π° Π΄ΠΎΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½Ρ‹Ρ… Ρ„ΡƒΠ½ΠΊΡ†ΠΈΠΉ с ΡƒΡ‡Π΅Ρ‚ΠΎΠΌ обСспСчСния тСстируСмости элСмСнтов слоТСния ΠΏΠΎ ΠΌΠΎΠ΄ΡƒΠ»ΡŽ Π΄Π²Π° Π² Π±Π»ΠΎΠΊΠ΅ логичСского дополнСния ΠΈ тСстСра ΠΊΠΎΠ΄Π° Β«2 ΠΈΠ· 4Β»

    Sum code family formation method with undetectable error minimum in data vectors

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    The research results of the methods for formation of separable sum codes with the minimum number of undetectable errors in data vectors are presented. A formula for counting the number of undetectable errors in data vectors and codes family properties are given. A universal method for formation of such codes is shown, which makes it possible for each value of the data vector length to obtain a whole family of codes that also have different distributions of undetectable errors by type and multiplicity. An example of codes formation, methods for analyzing characteristics, code comparison are presented. A method for synthesizing coders of developed sum codes is suggested

    Signal correction for combinational automation devices on the basis of Boolean complement with control of calculations by parity

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    Simpler than known structure of the system with error correction in calculations is proposed based on duplication and triplication of blocks with majority principle of choosing the values of signals. It is advisable to use the new fault-tolerant structure for automation devices with combinational logic. In fault-tolerant structure synthesis, the parity method is used to establish the fact of a fault in the main logic unit and the logical complement method is used determine incorrectly calculated output functions and to generate signals for their correction. The method also allows to adjust the values of incorrectly calculated functions. Structural diagram and description of error correction system are given. The synthesis algorithm of control equipment is described with minimization of the technical implementation complexity. The experiment results with control combinational circuits are given, confirming the high efficiency of proposed system structure with error correction

    The self-checking integrated control circuits synthesis based on the boolean complement method to "2-out-of-4" constant-weight code

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    The article explores the peculiarities of self-checking integrated control circuits synthesis by the Boolean complement method based on the "2-out-of-4'' constant-weight code. The article describes the features of integrated control circuits implementation by the Boolean complement method. It is noted that it is possible to synthesize the structures of discrete devices, which have less structural redundancy than in situation of the control circuit implementation by the method of duplication. The effect in structural redundancy reducing is achieved by minimizing the complexity of the control logic block technical implementation and using checkers that are simpler in their structures than the comparator in the system of duplication. The article proposes a method of the integrated control circuit organization based on determining the values of control functions taking into account the maintenance of testability of elements of addition by modulo two in the Boolean complement block and the checker of the "2-out-of-4" code

    THE PHI-PI(+) OMEGA-PI(+) RATIO FROM (N)OVER-BAR-P ANNIHILATIONS

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    A preliminary study of up three-prong annihilations into the channels K- K+ pi(+) and pi(-)pi(+)pi(+)pi(0) is presented for similar to 100-297 MeV/c ()overbarnmomenta.Theextractedphipi(+)/omegapi(+)productionratioshowsthatalsointhischannel,nevermeasuredbeforeusingan() over bar n momenta. The extracted phi pi(+)/omega pi(+) production ratio shows that also in this channel, never measured before using an () over bar n beam, the OZI rule is strongly violated. RI Galli, Domenico/A-1606-2012; Iazzi, Felice/F-4490-2012; Villa, Mauro/C-9883-2009; Filippi, Alessandra/I-9530-201
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