Irfan Ahmed Halepoto ¹, Anwar Ali Sahito ², Mansoor Soomro ², Sania Khaskheli ¹, Bhawani Shankar Chowdhry ¹

Affiliations
1 Department of Electronic Engineering, Mehran UET, Jamshoro, Sindh, PK
2 Department of Electrical Engineering, Mehran UET, Jamshoro, Sindh, PK

Abstract

Objectives: For the efficient and reliable operation, substation IEDs status must be monitored consistently and event information must be disseminated timely between substation levels. Methods/Statistical Analysis: Traditional power grid substations are facing infrastructural, operational, automation, systematic, monitoring and control issues. The smart grid concept and advancement in instrumentation and automation has open up the potential of substation automation system through which substation automation, intelligence and control is achieved, but devices interfacing, interoperability, time critical information exchange, substation devices status monitoring and data dissemination type issues are still in research phase. Findings: In this research work, substation bay level IEDs time critical data information dissemination model is designed by IEC 61850 standard using publisher subscriber communication. Based on IEC 61850 substation devices data object and interfacing models, a novel substation communication service mapping is proposed for the time critical data information dissemination. The proposed communication service mapping is based on abstract service communication interface technique by which an object oriented data and object models and communication service is directly mapped at Ethernet data link layer. Application/Improvements: To disseminate the data message using the proposed communication service an IEEE 802 based Ethernet frame structure is designed and configured using abstract syntax notation one technique.

Keywords

Data Dissemination, IEC 61850, IEEE Ethernet Frame, Publisher-Subscriber Communication, Substation.

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Muhammad Farrukh ¹, Irfan Ahmed Halepoto ², Bhawani Shankar Chowdhry ², Hameedullah Kazi ¹, Bharat Lal ¹

Affiliations
1 Department of Electrical Engineering, ISRA University, Hyderabad, PK
2 Department of Electronics Engineering, Mehran UET, Jamshoro, PK

Abstract

Objectives: This paper proposes the design and implementation of an automatic liquid distillation system. The prototype is designed for mainly two functions: liquid distillation and tank level. Methods/Statistical Analysis: Prototype presented involves a process of separating the mixture (Methanol & water) and improves the production by managing the whole system automatically. The prototype designed gives a simple controlling & monitoring i.e. data acquisition of fluid level with the help of PLC S7200. Distillation is the main theme behind this research work that plays a vital role in many industries in dealing with boiling of liquids and liquid levels. Findings: At initial stage the implementation of a robust mechanical design is constructed to sustain excessive temperature; besides this a console panel is made to manually control and indicate the state of actuators. At final stage PLC interfacing and programming with electrical components (level detector circuit, thermocouple, pump, heater, solenoid valve etc.) is done for achieving the efficient and fast automatic process. In the last design was experimented with actual solution, it was found that 90% of the methanol was retrieved in condensation chamber; also temperature linearization was observed during the process. Applications: Error free mechanism and fast actuation makes this model significant for many industries which deal with huge boilers where engineers tackle with controlling & monitoring of liquids i.e. sugar mills, milk factories etc.

Keywords

Analog Module EM235, Liquid Distillation, PLC S7200, STEP 7 Micro-Win, Tank Level Controlling

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Muhammad Ahmer ¹, M. Z. Abbas Shah ², Syed M. Zafi S. Shah ³, Syed. M. Shehram Shah ², Bhawani Shankar Chowdhry ², Aunsa Shah ², Khadim Hussain Bhatti ⁴

Affiliations
1 Institute of Information and Communication Technologies (IICT), Mehran University of Engineering and Technology, PK
2 Department of Electronic Engineering, Mehran University of Engineering and Technology, PK
3 Department of Telecommunication Engineering, Department of Software Engineering, Mehran University of Engineering and Technology,, PK
4 Pakistan Engineering Council, Islamabad, PK

Abstract

Activities of Daily Living (ADL) refers to different daily routine type activities which includes walking, running, jogging, standing, sitting etc. Recognition of ADLs has been of considerable interest to researchers for health assessment purposes. Furthermore, since more and more people choose to live alone in their house. ADL recognition serves as the first step towards developing a monitoring system for such people. This work proposes an algorithm that can be used to perform ADL detection using three types of data from inertial sensors (accelerometer, gyroscope and orientation) captured using a smart phone using non-linear Support Vector Machines. We have used a representative dataset named MobiACT and extracting sensor readings for a 10s window, Autoregression modeling has been used to model the sensor readings and we have detected six types of ADLs using a Support Vector Machine. We achieve an overall detection accuracy of 97.45%. The given method has been tested and proven to outperform other algorithms for the purpose of activity recognition.

Keywords

Activities of Daily Living, Autoregressive Modelling, Inertial Sensor, Mobiact

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Zia Mohy Ud Din ¹, Kim Jee Hyun ², Bhawani Shankar Chowdhry ³, Jin Ho Cho ²

Affiliations
1 Biomedical Engineering Department, Sir Syed University of Engineering and Technology, Karachi, PK
2 Sohool of Electronic Engineering, Collage of IT, Kyung Pook National University South Korea
3 Electrical, Electronics and Computer Engineering, Mehran University of Engineering and Technology, Jamshoro, PK

Abstract

Objectives: This research investigated the design and implementation of a system which could be used to detect the pulse rate from the wrist of a hand. Methods/Statistical Analysis: An ultrasound scan of the wrist has been taken to develop the model of the wrist. The model has been developed in Maxwell software. The simulation has done to find the appropriate size and inter-distance of the stimulation electrodes. After Simulation the electrodes are used to detect the heart rate from the wrist used electrical impedance plethysmography. It also shows the implementation of the low power wireless telemetry system used to transmit the EIP signals to the computer. The transceiver can send 32 Kbits/second with average power consumption of 0.986 nW. Findings: The simulation was done using the Maxwell simulation software. The simulation and experimental results were comparable because both showed the lowest effective results with 3 mm electrodes, moderate effective results with 7 mm electrodes, and good effective results with 5 mm electrodes. Application/Improvements: The results are affected with the position of the electrodes and motion artifacts. In future the system need to design in such a way that signals automatically attained from best optimal position for electrodes to detect the heart rate.

Keywords

Electrodes, Electrical Impedance Plethsmography, Pulse Rate, Radial Artery, Telemetry System

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