i-manager's Journal on Embedded Systems (JES)


Volume 4 Issue 4 November - January 2016 [Open Access]

Research Paper

A Study of an Engine Management System for Noise Cancellation Using Electronic Control Unit for Modern Automobiles

S. Thilagam* , P. Karthigaikumar**
* Assistant Professor, Department of Electronics and Communication Engineering, Kumaraguru College of Technology, Coimbatore, India.
** Professor, Department of Electronics and Communication Engineering, Karpagam College of Engineering, Coimbatore, India.
Thilagam.S., and Karthigaikumar.P. (2016). A Study of an Engine Management System for Noise Cancellation Using Electronic Control Unit for Modern Automobiles. i-manager’s Journal on Embedded Systems, 4(4), 1-4. https://doi.org/10.26634/jes.4.4.8108

Abstract

The desired performance of an automobile engine depends on fuel efficiency, air intake and spark timing. Initially, the performance of an engine is measured by the engine output torque and Revolutions Per Minute (RPM) and is achieved through some combinations of mechanical, pneumatic or hydraulic systems. Now, the design of Electronic Control Unit acts as a mediator between various input signals and control parameters to improve the overall performance of the engine. This paper focuses on the study of an Electronic Engine Control Unit for Noise Cancellation with relevant sensors and actuators used in modern Automobile systems.

Research Paper

Life-Cycle Cost Analysis of Corrosion Affected Instrumentation System along with its Alleviation Path

Sheikh Rafik Manihar Ahmed* , Vishal Sinha**, Vishal Sharma***
*-*** Control Systems Engineer, Fluor Daniel India Private Limited, Gurgaon, New Delhi, India.
Ahmed,S,R,M., Sinha,S., and Sharma,V., (2016). Life-Cycle Cost Analysis of Corrosion Affected Instrumentation System along with its Alleviation Path. i-manager’s Journal on Embedded Systems, 4(4), 5-14. https://doi.org/10.26634/jes.4.4.8111

Abstract

This paper explains the devastating effects of different corrosive gases on electronic instruments and details out its alleviation/mitigation path. Now-a-days all electronic instrumentation along with control and monitoring systems for industrial process control are based on NSMD/SMD technology including ICs. Many of the industrial process or during different process reaction of the plant, reactive gases are released which contains a particular amount (Ppm/Ppb) of sulfur, chloride or compound of sulfur and other corrosive compound. This sulfur containing industrial reactive gas combined with a high relative humidity and saliferous environment (i.e. salt producing or salt containing environment) can generate a harsh, corrosive atmosphere and also the presence of environmental gases containing [1] (such as NO2 , SO2 ,H2S, CO2 and Cl2 ) at particular Ppm/Ppb in conjunction with a certain level of relative humidity can have strong damaging effect on the control and monitoring and electronic instrumentation (such as PCB's, IC's, connector, contactor, switches and hermetic packages, etc.). An industrial reactive gas along with certain level of relative humidity accelerates corrosive reaction in electronic components of instrumentation system. This corrosive reaction in the electronic instrumentation containing electronic component results in decaying of Printed Circuit Boards (PCB) tracks, destroying of Integrated Circuits (IC's) and failure of control and monitoring system. For the protection of electronic instrumentation system from devastating effect of corrosive reactive gases and its compound, different mitigation plan have been discussed in this paper.

Research Paper

A Smartphone Based Physiological Parameters Monitoring System

Rahul Kher* , Nirav Patel**
* Associate Professor, Department of Electronics and Communication Engineering, G.H. Patel College of Engineering and Technology, Vallabh Vidhyanagar, India.
** PG Scholar, Department of Electronics and Communication Engineering, G.H. Patel College of Engineering and Technology, Vallabh Vidhyanagar, India.
Kher,R., and Patel,N., (2016). A Smartphone Based Physiological Parameters Monitoring System. i-manager’s Journal on Embedded Systems, 4(4), 15-20. https://doi.org/10.26634/jes.4.4.8113

Abstract

In medical treatment, diagnosis plays a very important role. A reliable, affordable wireless patient monitoring system has been designed. The designed system records the physiological parameters - body temperature, oxygen saturation in blood (SpO2 ), heart rate, as well as two bioelectrical signals-Electrocardiogram (ECG) and Electroencephalogram (EEG). The recorded parameters and signals are then transferred via bluetooth communication protocol to an android based smartphone. The recorded parameters/signals can be transferred to the physician through internet storage and generates alert messages in case of abnormal situations. The android based application comprises of the following features such as, storing the location of the patient, data on the device and internet drive, and view of ECG and EEG graphs. In addition, it helps in monitoring the patient's physiological parameters over the smartphone. An alert mechanism is also provided, which will send the message to the physician when the abnormal condition arise.

Research Paper

Conventional CMOS Full-Adder for Energy-Efficient Arithmetic Applications Using SR-CPL and DPL

Jayampu Manohar* , P. Hari Krishna**, K.V. Ramanaiah***
* Associate Professor, Department of Electronics and Communication Engineering, Jagan's College of Engineering & Technology, Nellore, Andhra Pradesh, India.
** Assistant Professor, Department of Electronics and Communication Engineering, Priyadarshini College of Engineering & Technology, Nellore, Andhra Pradesh, India.
*** Associate Professor, Department of Electronics and Communication Engineering, Yogi Vemana University, Kadapa, Andhra Pradesh, India.
Manohar,J., Krishna,H.P., and Ramanaiah.K.V. (2016). Conventional CMOS Full-Adder for Energy-Efficient Arithmetic Applications Using SR-CPL and DPL. i-manager’s Journal on Embedded Systems, 4(4), 21-29. https://doi.org/10.26634/jes.4.4.8116

Abstract

Energy-efficiency is one of the most required features of modern electronic systems designed for high-performance and/or portable applications. Now-a-days the need for having greater computing power based on battery operated mobile devices is increasing. For this, instead of optimizing the conventional delay time and area size, it is also required to minimize the power dissipation while still maintaining the high performance. An adder is an important element of all the arithmetic and logic units. The recent trends in VLSI are moving towards the need of the devices, which consume low power. Binary adders are one of the most basic and widely used in arithmetic operations. Full-adder is the fundamental unit to carry out the addition. Numerous logics have been proposed in the literature to implement full adder using MOS transistors, namely Pass transistor logic, Double pass transistor logic, DVL, CPL, etc. Full-adder implementing with a DPL logic style uses XOR/XNOR gates, and a pass-transistor based multiplexer to obtain the Sum (So) output, and SR-CPL logic style uses only XOR/XNOR gates. In both cases, the AND/OR gates are build using a powerless and groundless pass-transistor configuration, respectively, and pass-transistor based multiplexer to get the Carry (Co ) output. In this paper, DPL (Proposed Method), and SR-CPL are implemented using PSPICE software, among them SR-CPL shows better performance in Power Dissipation and it occupies less area in IC.

Research Paper

Single OFCC Based Continuous Time Filter

Prateek Tripathi* , Prashant Gola**, Neeta Pandey***, Rajeshwari Pandey****
*-** Undergraduate, Department of Electronics and Communication Engineering, Delhi Technological University, Daulatpur, Delhi, India.
***-**** Associate Professor, Department of Electronics and Communication Engineering, Delhi Technological University, Daulatpur, Delhi, India.
Tripathi,P., Gola,P., Pandey,N., and Pandey,R. (2016). Single OFCC Based Continuous Time Filter. i-manager’s Journal on Embedded Systems, 4(4), 30-37. https://doi.org/10.26634/jes.4.4.8117

Abstract

A single Operational Floating Current Conveyor (OFCC) based continuous time filter is proposed in this paper. The proposed filter can be configured for low pass, band pass and high pass responses by choosing proper impedances. It shows orthogonal controllability of pole frequency and quality factor. It can provide low pass, high pass and band pass responses by appropriately selecting component values. The verification of the theoretical proposition is done through AC and transient analysis in SPICE. The resilience of the circuit has been tested by the use of Monte Carlo analysis in SPICE.

Review Paper

A Review Paper on 4 Bit ALU Design by Using GDI

Bhavesh Wagh* , Moresh Mukhedker**
* PG Scholar, Department of Electronics and Communication Engineering, D.Y. Patil College of Engineering, Ambi, Pune, India.
** Assistant Professor, Department of Electronics and Communication Engineering, D.Y. Patil College of Engineering, Ambi, Pune, India.
Wagh,B., and Mukhedker,M. (2016). A Review Paper on 4 Bit ALU Design By Using GDI Technique. i-manager’s Journal on Embedded Systems, 4(4), 38-43. https://doi.org/10.26634/jes.4.4.8118

Abstract

Arithmetic and Logic Circuits are to be designed with less power, compact size, less propagation delay in this fast growing era of technology. Arithmetic operations are indispensable and the basic functions for any high speed low power applications like digital signal processing, microprocessors, image processing, etc. Consumption of power is the major issue in designing these circuits. Also the number of transistors required is also the one of the issues in designing the circuits. To minimize the transistors required in designing the circuits and to reduce the power consumption of the circuits, the authors have referred some techniques to overcome these problems in this paper. By reviewing all these techniques, the authors try to implement the GDI technique to reduce the power consumption and transistors count or the area required to design the circuits.