WinCE-based embedded system for control of an industrial screw machine

Nowadays, industrial systems frequently require the control of some industrial process and monitoring of relevant data about the process, using a friendly visual environment. Normally, is used a PLC (Programmable Logical Controller) to control the process and assure that the timing requirements (deadlines) are satisfied and a PC to monitor the data. However, the implementation of such solution presents the following drawbacks to the system programmer: (1) he or she needs to know the communication protocol between the two platforms - PLC and the PC; (2) he or she needs to learn two different programming languages - the low level PLC language and a high level PC language. On the other hand, in some cases, the reserved space to control the systems is reduced, making the implementation of such solution very hard. This paper presents an approach based on an embedded PC with real-time processing capability and data monitoring facility. The proposed system runs the Windows CE operating system and allows all software development in C/C++, using the Microsoft Visual Studio environment. The system was tested on an industrial screw machine for PCBs

A Command and Query Language Assembler for an Extended Data Management System

For a data management system with information storage and retrieval capabilities a language is needed by which a user of the system can specify the records he wishes to retrieve and the operations he wishes to perform on these records. The Command and Query Language under discussion was developed to meet these needs for the extended data management system. Its development was divided into two spheres of responsibility. The first sphere, referred to as the Assembler, centers on the routines needed for accepting and translating user requests. The second sphere centers on those routines needed for executing the translated requests. These routines are called collectively the Interpreter. The design of the Command and Query Language and the implementation of the Assembler is the topic of this report. Basically, the Language enables the user to specify the records by means of the logical and arithmetic expression of keywords. Since program names may be keywords, the user can specify operations (to be performed on records) with keyword expressions as well The design of the Language involves the following steps: (1) Define the requirements of the Language. (2) Define the (external) syntax and semantics of the Language. (3) Design an internal form of the Language to allow efficient processing by the Interpreter. The design and implementation of the Assembler will result in the necessary routines which can check the syntax of the Language and transform the Language from its external syntax to internal form

An exploratory study using the predicate-argument structure to develop methodology for measuring semantic similarity of radiology sentences

Indiana University-Purdue University Indianapolis (IUPUI)The amount of information produced in the form of electronic free text in healthcare is increasing to levels incapable of being processed by humans for advancement of his/her professional practice. Information extraction (IE) is a sub-field of natural language processing with the goal of data reduction of unstructured free text. Pertinent to IE is an annotated corpus that frames how IE methods should create a logical expression necessary for processing meaning of text. Most annotation approaches seek to maximize meaning and knowledge by chunking sentences into phrases and mapping these phrases to a knowledge source to create a logical expression. However, these studies consistently have problems addressing semantics and none have addressed the issue of semantic similarity (or synonymy) to achieve data reduction. To achieve data reduction, a successful methodology for data reduction is dependent on a framework that can represent currently popular phrasal methods of IE but also fully represent the sentence. This study explores and reports on the benefits, problems, and requirements to using the predicate-argument statement (PAS) as the framework. A convenient sample from a prior study with ten synsets of 100 unique sentences from radiology reports deemed by domain experts to mean the same thing will be the text from which PAS structures are formed

Semantics, Modelling, and the Problem of Representation of Meaning -- a Brief Survey of Recent Literature

Over the past 50 years many have debated what representation should be used to capture the meaning of natural language utterances. Recently new needs of such representations have been raised in research. Here I survey some of the interesting representations suggested to answer for these new needs.Comment: 15 pages, no figure

A study of systems implementation languages for the POCCNET system

The results are presented of a study of systems implementation languages for the Payload Operations Control Center Network (POCCNET). Criteria are developed for evaluating the languages, and fifteen existing languages are evaluated on the basis of these criteria