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136
• British Telecommunications plc. (BT)
, 2001
"... The aim of this document is to identify key p be monitored to support inter-domain manag and levels of abstraction required by the user business and technical model introduced in D input for Deliverable 3, in which managem considered in detail.trics and Service Eventsbstract erformance metrics and s ..."
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The aim of this document is to identify key p be monitored to support inter-domain manag and levels of abstraction required by the user business and technical model introduced in D input for Deliverable 3, in which managem considered in detail.trics and Service Eventsbstract erformance metrics
On Different Neural Network Input Training Sets and PLC Implementation
"... Abstract — The process of sorting marble plates according to their surface texture is an important task in the automated marble plate production. Nowadays some inspection systems in marble industry that automate the classification tasks are too expensive and are compatible only with specific technol ..."
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. It is based on training a classification MLP neural network with three different input training sets: extracted texture histograms, Discrete Cosine and Wavelet Transform over the histograms. The algorithm is implemented in a PLC for real-time operation. The performance of the system is assessed with each one
Design and Implementation of PLC based Elevator
"... This paper explains about an elevators operation which uses a AC motor to drive the elevator cabin. The elevator mentioned here is fully automated using PLC. Its control is based on the input that we get from the operator as well as from the sensors. According to that signal PLC will make the drive ..."
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This paper explains about an elevators operation which uses a AC motor to drive the elevator cabin. The elevator mentioned here is fully automated using PLC. Its control is based on the input that we get from the operator as well as from the sensors. According to that signal PLC will make the drive
Estimating PLC logic program reliability
"... In earlier research we developed a theory for predicting the reliability of conventional sequential programs based on an estimate of residual faults. This paper describes how the theory was applied to a realistic industrial example containing a known number of faults. The industrial example was impl ..."
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was implemented in a PLC application language where the program is represented by a network of logic gates (e.g. AND and OR gates). To make a residual fault estimate, our fault estimation method had to be adapted to apply to logic networks. The previous estimation method relied on a measurement of code coverage
Brushless DC motor control using PLC
"... The aim of this paper is to investigate controlling a Brushless DC Motor (BLDCM) using a Programmable Logic Controller (PLC) instead of micro-controllers chips. As PLCs are now involved in most industrial processes, therefore, developing a program to handle the control of BLDCMs will save electronic ..."
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electronic components used in the drive circuit. Further, one PLC may control more than one motor via programming extra inputs and outputs already implemented in the PLC or simply by attaching additional input / output cards. The speed is varied through the PWM technique. The PLC performed well with speeds
Implementation and Results of a MIMO PLC Feasibility Study
"... Abstract—Multiple Input Multiple Output (MIMO) methods significantly improve the coverage of Power Line Communications (PLC) compared to Single Input Single Output (SISO) systems. This paper describes the implementation and results of the first real-time MIMO PLC feasibility study. Our system setup ..."
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Abstract—Multiple Input Multiple Output (MIMO) methods significantly improve the coverage of Power Line Communications (PLC) compared to Single Input Single Output (SISO) systems. This paper describes the implementation and results of the first real-time MIMO PLC feasibility study. Our system setup
1 PLC-PROGRAMMING BY DEMONSTRATION USING GRASPABLE MODELS
"... www.artec.uni-bremen.de/field1/rugams/index.html Abstract: PLC-programming for production plants is time and money consuming. It takes place in the critical period shortly before start of production which is a very time critical period. It should be started as early as possible, using concurrent eng ..."
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sensor ring. These de-vices provide input data that allow to keep track of the changes of the real world model. An auto-matic system for input abstraction generates PLC programs automatically from demonstrated be-havior. The benefits of this concept are shorter time to production, lower costs, better
Electromagnetic fields modeling of power line communication (PLC)
, 2003
"... In this project, the circuit model of a straight 3-line PLC system with a pure TEM input signal has been deduced. The detail process of modeling, the assumptions we made and its mathematical expression will be showed. The radiation field (E & H fields) of a given point in the near field space ha ..."
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In this project, the circuit model of a straight 3-line PLC system with a pure TEM input signal has been deduced. The detail process of modeling, the assumptions we made and its mathematical expression will be showed. The radiation field (E & H fields) of a given point in the near field space
Static Application Panels (SAP) Controlled by PLC
"... Programmable Logic Controller (PLC) is a digital computer for automation of process such as control of instruments in industries. It uses a programmable memory to store instructions and specific functions that include ON/OFF control, timing, counting, sequencing, arithmetic, and data handling. The b ..."
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. The basic parts include processor, input/output devices, memory unit, programming panel and power supply. Static Application Panels are designed to produce input and output from the PLC. Early electrical control systems were composed of mainly relays and switches. A relay, or contactor
MIMO PLC: Theory, Measurements and System Setup
"... new and highly convenient networking functions without any additional wires to mains-powered devices. Multiple Input Multiple Output (MIMO) methods significantly improve the coverage of guaranteed data throughputs in private homes. This paper gives an overview on MIMO PLC. The results from the chann ..."
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new and highly convenient networking functions without any additional wires to mains-powered devices. Multiple Input Multiple Output (MIMO) methods significantly improve the coverage of guaranteed data throughputs in private homes. This paper gives an overview on MIMO PLC. The results from
Results 1 - 10
of
136