Temat: control part - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of safeness in a Petri net-based specification of the control part of cyber-physical systems
Autorzy:: Wojnakowski, Marcin
Wiśniewski, Remigiusz
Bazydło, Grzegorz
Popławski, Mateusz
Powiązania:: https://bibliotekanauki.pl/articles/2055147.pdf
Data publikacji:: 2021
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: safeness
control part
cyber physical system
Petri net
state machine cover
place invariant
bezpieczeństwo baz danych
część kontrolna
system cyberfizyczny
sieć Petriego
maszyna stanów
niezmiennik miejsca
Opis:: The paper proposes an algorithm for safeness verification of a Petri net-based specification of the control part of cyber-physical systems. The method involves a linear algebra technique and is based on the computation of the state machine cover of a Petri net. Contrary to the well-known methods, the presented idea does not require obtaining all sequential components, nor the computation of all reachable states in the system. The efficiency and effectiveness of the proposed method have been verified experimentally with a set of 243 test modules (Petri net-based systems). The results of experiments show high efficiency of the proposed method since a solution has been found even for such nets where popular techniques are not able to analyze the safeness of the system. Finally, the presented algorithm is explained in detail using a real-life case-study example of the control part of a cyber-physical system.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2021, 31, 4; 647--657
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Nowe wskaźniki efektywności procesu wdrażania produkcji nowatorskich wyrobów, realizowanego na podstawie wytycznych branży motoryzacyjnej
New efficiency indicators of innovative products implementation process realized on the basis of automotive requirements
Autorzy:: Gawlik, J.
Rewilak, J.
Tokaj, T.
Powiązania:: https://bibliotekanauki.pl/articles/340061.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Zarządzania Produkcją
Tematy:: APQP (Advanced Product Quality Planning)
PPAP (Production Part Approval Process)
flowchart
FMEA
control plan
MSA (Measurement System Analysis)
SPC (Statistical Process Control)
Taguchi's loss function
Opis:: One of the requirements of the process approach is to identify the methods and evaluation criteria for process measurement. Efficiency described as the ability to achieve planned results with respect to consumed resources may be a measure used for evaluation of processes. The article presents a few concepts of efficiency indicators that can be used in assessing the activities carried out within the framework of the implementation of new projects, according to standards of automotive industry. These standards are: APQP (Advanced Product Quality Planning) and its integral part, used in the final stage of validation of the product and process, known as PPAP (Production Part Approval Process). The paper proposes three concepts of indicators assessing the efficiency of the above-described process and one concept of calculating the efficiency indicator based on the Taguchis loss function.
Źródło:: Zarządzanie Przedsiębiorstwem; 2013, 16, 1; 2-10
1643-4773
Pojawia się w:: Zarządzanie Przedsiębiorstwem
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Procedura procesu zatwierdzania części do produkcji (PPAP) jako standard zapewnienia jakości dostawców (SQA) w przedsiębiorstwach produkcyjnych
Production part approval process (PPAP) as a supplier quality assurance standard (SQA) for manufacturing companies
Autorzy:: Rewilak, J.
Tokaj, T.
Powiązania:: https://bibliotekanauki.pl/articles/339915.pdf
Data publikacji:: 2012
Wydawca:: Polskie Towarzystwo Zarządzania Produkcją
Tematy:: proces zatwierdzania części do produkcji (PPAP)
schemat
FMEA
plan kontroli
MSA
SPC
Production Part Approval Process (PPAP)
flowchart
control plan
Opis:: It is a common knowledge, that quality of a manufactured product highly depends on quality of its components. This especially might be a problem, if a component comes from external supplier, whose processes are normally beyond our control. The paper addresses a procedure called PPAP (Production Part Approval Process abbreviation known from Ford, Chrysler, General Motors manuals, issued by AIAG) which has been widely used in automotive industry to assure good quality deliveries from suppliers, beginning from early stage of cooperation, before start of production. PPAP requirements are shown as a way customer and supplier agrees upon not only product quality, but also upon manufacturing process, which must meet specified standards, set by customer (e.g. documentation, records, capability, stability, confidence in measurements etc.). The paper includes authors' assessment of resources necessary for a supplier to provide in order to meet customer's PPAP requirements. Also, reasons and perspectives of PPAP development are discussed, basing on documents proving PPAP - like practices noticeable in industries having little or nothing in common with automotive industry. In conclusion, PPAP is presented as a procedure imposed on suppliers by customers, who, being well aware of weaknesses of certified Quality Management Systems with respect to management of preventive actions in supplier's manufacturing processes, needs a strong proof that a supplier effectively introduced relevant preventive actions to a manufacturing process before it starts production of goods for a customer.
Źródło:: Zarządzanie Przedsiębiorstwem; 2012, 15, 2; 25-31
1643-4773
Pojawia się w:: Zarządzanie Przedsiębiorstwem
Dostawca treści:: Biblioteka Nauki

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