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A Meta-model for Diverse Data Sources in Business Intelligence
Fatima Kalna,
Abdessamad Belangour
Issue:
Volume 7, Issue 1, June 2019
Pages:
1-8
Received:
18 January 2019
Accepted:
28 February 2019
Published:
20 March 2019
Abstract: With the manifestation and evolution of Internet, several new types of data have emerged (videos, images, audio files, documents…). These new types of data classed as unstructured are more and more used and exchanged between IT systems, therefore their exploitation in Business Intelligence (BI) systems will absolutely provide a gold mine of information that guarantee a better and rich decision-making. Unfortunately BI systems don’t consider this sort of data and they are still limited to classical data sources: structured as Relational data source and semi-structured as XML files. Many research works separate the treatment and the design of a data warehouse that involves heterogeneous sources in order to avoid any problems of data integration and storage. However, the need for an approach that gathers diverse data sources still present. In this paper we appeal Model Driven Engineering (MDE) to propose a meta-model that assemble and describe all sort of structured, semi-structured and unstructured data sources such as relational, multidimensional, XML and NoSQL databases. Models conforming this meta-model will serve as an input for our BI process and for designing and modeling a data warehouse.
Abstract: With the manifestation and evolution of Internet, several new types of data have emerged (videos, images, audio files, documents…). These new types of data classed as unstructured are more and more used and exchanged between IT systems, therefore their exploitation in Business Intelligence (BI) systems will absolutely provide a gold mine of informa...
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A Microcontroller-Based Remote Embedded SCADA Control System With the Aid of a 32-Bit Microcontroller
Mostefa Ghassoul,
Hajer Hafedh Ebrahim,
Fatima Abdul Hussain Yusuf
Issue:
Volume 7, Issue 1, June 2019
Pages:
9-20
Received:
11 October 2018
Accepted:
12 March 2019
Published:
1 April 2019
Abstract: Supervisory control and data acquisition are well established control and visualization systems in industry. SCADA systems are DCS, PLC, soft PLC, industrial computer or microcontroller based. Some of those types of control are suitable for certain industries and are not for others. DCS is suitable in process control such as chemical, petrochemical, pharmaceutical industry and alike. PLCs are more suitable for food industry, beverages, car industry etc. Microcontrollers are emerging as a competitive option in small open SCADA system. All those types of control are based on data sharing using different types of networks such as Fieldbus, Profibus, Modbus and high speed ethernet. Those nets are interconnected using hard cabling which renders the communication distance very limited. One option is the use of public services such as internet but the risk is too high due to hacking, sabotage just to name few. This is demonstrated by the various conferences held over the world discussing protective ways against such practices. To overcome those problems including the cabling problem, one can call upon wireless communication with the aid of microcontroller and a SMART PHONE. This paper presents the design of a remote embedded SCADA system based on a 32 bit Microchip microcontroller. The controller has three main tasks to carry out. It controls a heat exchanger rig. It drives a multimedia graphic expansion board and it communicates with the SMARTPHONE using GSM where it interacts with the process either in normal mode or emergency mode. The proposed scheme has several advantages. It can communicate to any user independent of distance and time. It could be easily customized to allocate small and probably middle industry. On top of the cost effectiveness, the system could be expanded in local network to accommodate more complex applications.
Abstract: Supervisory control and data acquisition are well established control and visualization systems in industry. SCADA systems are DCS, PLC, soft PLC, industrial computer or microcontroller based. Some of those types of control are suitable for certain industries and are not for others. DCS is suitable in process control such as chemical, petrochemical...
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A Microcontroller Based Intelligent Traffic Control System
Md. Shamsul Arifin,
Sheikh Alimur Razi,
Akramul Haque,
Nur Mohammad
Issue:
Volume 7, Issue 1, June 2019
Pages:
21-25
Received:
26 June 2018
Accepted:
11 April 2019
Published:
9 May 2019
Abstract: A new microcontroller based intelligent traffic control system is proposed in this paper. Instead of changing traffic lights automatically for a given interval, this system allows passing the vehicles considering the number of vehicles on the roads. An Atmega 32 microcontroller and infrared sensors (IR sensors) are used to implement the traffic system. An algorithm is also developed for this purpose. The system is simulated and implemented also by constructing a test rig. The results from the simulation and experimental test rig confirm its appropriateness of using in the roads of different cities. No further processing scheme is required for this intelligent traffic control system.
Abstract: A new microcontroller based intelligent traffic control system is proposed in this paper. Instead of changing traffic lights automatically for a given interval, this system allows passing the vehicles considering the number of vehicles on the roads. An Atmega 32 microcontroller and infrared sensors (IR sensors) are used to implement the traffic sys...
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Simplex High-Speed Morse Coding with Ultra Low Power MSP430
Vibha Ravi,
Vidhathri Udaya,
Keshav Vaidyanathan Bharadwaj,
Vivek Bettadapura Adishesha
Issue:
Volume 7, Issue 1, June 2019
Pages:
26-40
Received:
31 July 2019
Accepted:
2 September 2019
Published:
17 September 2019
Abstract: This paper presents the design and implementation of a simplex communication model using high-speed Morse coding. Morse code is a dot and dash code used from the 19th century and prevails for highly secure applications. The objective of this paper is to design effective encoder and decoder circuits for the Morse code which draw less power. The model is implemented by using two microcontrollers – MSP430 for encoding and ATMEGA8 for decoding. The communication between microcontrollers and the end users are established using Bluetooth. The Morse code is transmitted through an optical medium as flashes of light. The light is flashed using an LED and detected using a phototransistor that constitute an optocoupler. The actuator and sensor pair in the optocoupler are varied by using combination of other actuators like IR diode, Laser and sensors like Photodiode. Each of these combinations have been analysed under the presence and absence of external light with varying distances and the resulting characteristics are plotted. This model is very effective for communication in noisy environments and eliminates the necessity of skilled personnel for decoding the message. It enhances the security and reduces the time required for the overall process. The model has been tested with information of various lengths and it has proven successful in performing the desired operation and delivering the correct output in all the cases.
Abstract: This paper presents the design and implementation of a simplex communication model using high-speed Morse coding. Morse code is a dot and dash code used from the 19th century and prevails for highly secure applications. The objective of this paper is to design effective encoder and decoder circuits for the Morse code which draw less power. The mode...
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