Which mode of operation could be described as the opposite of batch processing?
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MPCA method is supported by a assumption that all data trajectories in batch process are consistent. Statistical model is built using these equal duration data. But many situations are different. The total time duration of the batches and the duration of various stages within the batches are not the same. Usually batch-to-batch variation can influence statistical model, even fault diagnosis. So one important work is to make all process data to be consistent. Show
In spoken word recognition, unsynchronized modes is a common problem. The same word can be uttered with different duration and intensity in different situation and by different speakers; The speech recognition system should be able to classify them. This process is completed by extracting features from speech signals. Dynamic time warping (DTW) is a method for flexible pattern-matching scheme. It translate, compress, and expand a pairs of patterns so that similar feature within the two patterns are matched (C. Myers, L.R.Rabiner, and A.E.Rosenberg.1980; H.F. Silverman, and D.P. Morgan.1990). DTW has been used in spoken word recognition widely. Similarly, DTW has the ability to synchronize two trajectories from batch process and provides an elegant solution to the problem of synchronization of batch trajectories. This paper proposes a CMPCA method for monitoring and fault diagnosis in batch process. That is based on the combination of MPCA and DTW. DTW can synchronize all data from batch process. To build MPCA model, normal historical data must be consistent firstly. Then one can build CMPCA model that not only conserve data information but avoid model residual. Moreover new batch data also is disposed using DTW then project onto CMPCA model to diagnose faults. The organization of this article is as follows. First a brief overview of the standard MPCA procedure is provided, followed by a introduction of DTW analysis. The methodology for CMPCA using DTW is developed in detail and to be used for fault diagnosis in batch processes by sequence examples. Finally, conclusions and discussions are given in the last section. View chapterPurchase book Read full chapter URL: https://www.sciencedirect.com/science/article/pii/B9780080444857502025 Identify and define process models, actions, operations and stagesMike Barker BSc (ElecEng), ... Steve Mackay FIE (Aust), CPEng, BSc (ElecEng), BSc (Hons), MBA, Gov. Cert. Comp., in Practical Batch Process Management, 2005 3.1.3 Network processIn a process with network structure, the sequence of the units may be pre-assigned, determined prior to execution of the batch or even during the execution of the batch. In network structure process, an appropriate path is determined at the time of execution, depending on constraints like recipe requirements and equipment capabilities. Control of network process is complex due to the need for allocation of equipment and the arbitration of requests for the equipment. For a batch process, ISA S88 describes the following models: •Physical model: To explain physical assets of the enterprise. •Process model: For sub-division of a batch process. Procedural control model: For sub-division of procedural elements of batch process. •Procedural equipment mapping model: For defining links between the above three models in order to achieve the batch process functionality. •Recipe-type model: To define the recipe types and relation between different types of recipes. •Control activity model: To deal with functional activities of a batch system. In this chapter we will learn to identify and define process model and the relationship between process model and physical model. View chapterPurchase book Read full chapter URL: https://www.sciencedirect.com/science/article/pii/B9780750662772500037 Process Control SystemsJuergen Hahn, Thomas F. Edgar, in Encyclopedia of Physical Science and Technology (Third Edition), 2003 V Batch Process ControlBatch process control refers to plants where products are made in a discontinuous fashion using an array of process equipment. Most plants producing fine chemicals, pharmaceuticals, semiconductors, and foods employ batch processes, because they have to produce small amounts of a variety of specialized products, which may vary from month to month or even day to day. Because the production amounts are relatively small, it is not economically feasible to dedicate processing equipment to the manufacture of only one product. Instead, batch processing is utilized, so that several products can be manufactured with the same process equipment. The main issue in such plants is to manufacture each product consistently in accordance with its specifications, using production scheduling methodologies such as optimization. In a batch process, the conditions within the process are continually changing. The technology for making a given product is contained in the product recipe that is specific to this product. Such recipes state the amount of raw materials required as well as the processing instructions. What is the difference between interactive and batch processing?Interactive vs. batch. When you type commands in a login shell and see a response displayed, you are working interactively. To run a batch job, you put the commands into a text file instead of typing them at the prompt.
What are the 2 main types of batch operating system?There are mainly two types of the batch operating system. These are as follows: Simple Batched System. Multi-programmed batched system.
What is the other name of batch operating system?Excretory System
The users who using a batch operating system do not interact with the computer directly. Each user prepares its job on an off-line device like punch cards and submits it to the computer operator. To speed up the processing, jobs with similar needs are batched together and run as a group.
What is batch mode of data processing?Batch processing is the processing of a large volume of data all at once. The data easily consists of millions of records for a day and can be stored in a variety of ways (file, record, etc). The jobs are typically completed simultaneously in non-stop, sequential order.
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