Ashwini Kumari P - Academia.edu (original) (raw)

J4R | Volume 4 by Ashwini Kumari P

Journal 4 Research , 2018

This paper presents sensor based multilevel security system. It offers three levels of security u... more This paper presents sensor based multilevel security system. It offers three levels of security using PIR sensor, temperature sensor, password based digital lock. It is basically wireless sensor network using Arduino Mega 2560 and GSM .This wireless sensor network is made up of sub systems like PIR sensors, fire alarm module which is made by temperature sensor, digital lock system and burglar alarm module into a single automated architecture for the purpose of practical implementation in smart home system. When sensors get signals or obtained signals crosses reference value, Arduino controller sends an information to the user having mobile through the GSM (Global System for Mobile Communication) module over a wireless communication .All the modules work parallel and independently by sharing computational resource i.e. microcontroller together. Hence a low cost, accessible, auto-configurable, secure and remotely controlled solution has been developed for smart home security system.

Papers by Ashwini Kumari P

International Journal for Scientific Research and Development, 2019

2022 IEEE 2nd Mysore Sub Section International Conference (MysuruCon)

In this paper, the communication between Arduino Mega microcontroller and mini thermal printer is... more In this paper, the communication between Arduino Mega microcontroller and mini thermal printer is implemented by hardware and software integration. The microcontroller is programmed to transfer the data from microcontroller to printer using a serial communication protocol such as universal asynchronous receiver and transmitter (UART) via Serial communication devices such as MAX232 converter, DB9 connector which is nothing but RS232 serial port, and universal serial bus (USB) communication port. Data sent by the microcontroller is made to print from the printer and it is shown in the result section. Digital pins '3' and '4' on the microcontroller are used as virtual Rx and Tx serial lines while leaving the main serial port open for debugging purposes. Interfacing between UART of microcontroller, MAX232, serial port, and the USB port of printer are well established with the complete schematic diagram. The mini thermal printer prints whatever is sent by the microcontroller. A simple code similar to the one used for the serial monitor works for the printer. The baud rate needs to be set at 9600 for the microcontroller to communicate with the printer. The system is designed to print data wirelessly using Bluetooth HC-05 for restaurant and hospital management applications. The system has high adaptability. It can be used in many situations not only for restaurant and hospital management.

2022 IEEE 2nd Mysore Sub Section International Conference (MysuruCon)

Digital technologies empower the transformation into data-driven, intelligent, agile, and autonom... more Digital technologies empower the transformation into data-driven, intelligent, agile, and autonomous farm operations and are typically considered a key to addressing the grand challenges in agriculture. To avoid unscientific water supply for plantation as well as to save the water and also yield the better crop, therefore, to increase production efficiency out of smart irrigation and to send the status of irrigation at standard environmental conditions, The Internet of Things (IoT) based prototype is designed and implemented. The prototype automatically turns ON /OFF the motor pump based on the moisture level of the soil by taking the temperature and humidity of the environment near the plantation into consideration (In India, the standard parameters for watering the vegetable plantation are Humidity>60%, Temperature < 25°C and Humidity<40%). The prototype is designed with an ESP32S microcontroller with DHT 11 and a moisture sensor. Arduino IDE development tool is used for programming ESP32S using embedded C programming language. The prototype is configured, programmed, and connected to the Arduino IoT cloud. The data of temperature, humidity, and moisture are received via message queuing telemetry transport (MQTT) protocol on IoT cloud through public IP therefore the data can be accessed worldwide. The authorized person can access the data and control the motor pump from anywhere across the world. The test data obtained out of the prototype over the cloud and at the system are presented in the result section.

AIP Conference Proceedings

This work introduces a small community of micro grid simulation platform. Which includes the micr... more This work introduces a small community of micro grid simulation platform. Which includes the micro grid application platform that is capable of simulating the model with flexibility. The prototype includes PV generated array, fuel cell, and wind turbine LES, circuit breakers, controllers and power electronics circuits. With the help of this model we can use renewable energy more effectively in small groups like homes, parks and offices. A case study is also performed on this platform. Results of simulation are also presented which shows the importance of the micro grid.

Advances in Intelligent Systems and Computing, 2019

This paper presents smart and optimal way of allocating power to the utility using global system ... more This paper presents smart and optimal way of allocating power to the utility using global system for mobile communication module-based remote automatic energy meter reading system. The designed device is installed with the energy meter at consumer premises. A smart communication is established between service provider and consumer using GSM module which is capable of calculating the energy consumed at different tariff and time. An artificial neural network using back-propagation approach is employed to obtain optimal allocation of service provider to meet the objective function. The novel idea of smart energy metering not only reduces the cost of energy consumption but also helps in proper repayments, optimal usage of power based on time of day tariff, and theft control with higher reliability and greater flexibility. A smart real-time prototype of the automatic energy reading system was built to demonstrate the effectiveness and efficiency of automatic meter reading, billing, and notification through the use of global system for mobile communication network.

Renewable and Sustainable Energy Reviews, 2018

Solar energy has been one of the environmental friendly sources of energy. The low cost solution ... more Solar energy has been one of the environmental friendly sources of energy. The low cost solution with minimal maintenance motivates towards photovoltaic (PV) cells based energy harnessing methods to meet energy demands. However, majority of conventional PV systems suffer from low energy conversion ratio (ECR) due to improper selection of the PV parameters and maximum power point tracking (MPPT) algorithm. Even ECR is adversely affected under varying environmental conditions. Therefore, accurate estimation of PV parameter can be of paramount significance for efficient PV model design. In addition, the development of a robust MPPT algorithm in conjunction with the effective PV design parameter can enable optimal ECR achievement. In this review paper, a number of literatures pertaining to PV parameter estimation and MPPT algorithms are discussed. Different methods including analytical, iterative and evolutionary computing algorithms are assessed for their efficacy towards PV parameter estimation. This review paper revealed that the analytical approaches suffer from singularity problem as well as limited mathematical calculation that confine its efficacy for optimal PV parameter estimation under dynamic irradiation pattern. The iterative approaches too are limited due to dynamic environment conditions. Our study has revealed that the evolutionary computing approaches, such as genetic algorithm (GA), particle swarm optimization (PSO), differential evolution (DE), etc. have played vital role in PV design parameter estimation and classical approaches suffer from local minima and convergence issues. This manuscript reveals that to enable an optimal PV design parameter estimation there is an inevitable need to incorporate either evolutionary computation schemes or apply an efficient multi-objective optimization measures. This as a result can not only alleviate local minima and convergence issues but can also enable swift and precise parameter estimation to assist optimal PV design and augmented ECR performance.

Energy Procedia, 2017

District heating networks are commonly addressed in the literature as one of the most effective s... more District heating networks are commonly addressed in the literature as one of the most effective solutions for decreasing the greenhouse gas emissions from the building sector. These systems require high investments which are returned through the heat sales. Due to the changed climate conditions and building renovation policies, heat demand in the future could decrease, prolonging the investment return period. The main scope of this paper is to assess the feasibility of using the heat demand-outdoor temperature function for heat demand forecast. The district of Alvalade, located in Lisbon (Portugal), was used as a case study. The district is consisted of 665 buildings that vary in both construction period and typology. Three weather scenarios (low, medium, high) and three district renovation scenarios were developed (shallow, intermediate, deep). To estimate the error, obtained heat demand values were compared with results from a dynamic heat demand model, previously developed and validated by the authors. The results showed that when only weather change is considered, the margin of error could be acceptable for some applications (the error in annual demand was lower than 20% for all weather scenarios considered). However, after introducing renovation scenarios, the error value increased up to 59.5% (depending on the weather and renovation scenarios combination considered). The value of slope coefficient increased on average within the range of 3.8% up to 8% per decade, that corresponds to the decrease in the number of heating hours of 22-139h during the heating season (depending on the combination of weather and renovation scenarios considered). On the other hand, function intercept increased for 7.8-12.7% per decade (depending on the coupled scenarios). The values suggested could be used to modify the function parameters for the scenarios considered, and improve the accuracy of heat demand estimations.

with the increase in the utilization of solar energy there is a need for renewable energy sources... more with the increase in the utilization of solar energy there is a need for renewable energy sources. A low frequency transformer is used to make project cost effective and sinusoidal pulse width modulation technique is employed for control circuit to obtain single phase pure sine wave inverter for PV applications. Distortion in the output waveform is minimized for both inductive and capacitive load by considering closed loop control PIC microcontroller is used to generate PWM pulses. The simulation is carried out using MATLAB to verify the presented approach.

In the consumer electronic industry buck converters are the most popular converters used now-a-da... more In the consumer electronic industry buck converters are the most popular converters used now-a-days. Among that Synchronous buck converters are becoming the industry standard because of their superior performance and higher efficiency. In this paper modeling and simulation of synchronous buck converter in digital mode is carried out. Now-a-days digital controllers are becoming popular because of their advantages like reprogrammability, immunity to analog component variations, flexibility etc. In digital controller the two nonlinear quantizes namely the analog-to-digital converter (ADC) and digital pulse width modulator (DPWM) are used. These blocks regulate the output voltage effectively against the input voltage and load current perturbations.

In this paper, the proposed system has demonstrated three ways of detecting alcohol level in the ... more In this paper, the proposed system has demonstrated three ways of detecting alcohol level in the body of the car driver and prevent car driver from driving the vehicle by turning off the ignition system. It also sends messages to concerned people. In order to detect breath alcohol level MQ-3 sensor is included in this module along with heartbeat sensor which can detect the heart beat rate of driver, facial recognition using webcam & MATLAB and a Wi-Fi module to send a message through the TCP/IP App, a Raspberry pi module to turn off the ignition and an alarm as prevention module. If a driver alcohol intake is more than the prescribed range, set by government the ignition will be made off provided either his heart beat abnormal or the driver is drowsy. In both the cases there will be a message sent to the App and from the App you can send it to family, friend, and well-wisher or nearest cop for the help. The system is developed considering the fact if driver is drunk and he needs a h...

AIP Conference Proceedings

Ceramic Insulators are used as electrical insulators ever since the introduction of power system.... more Ceramic Insulators are used as electrical insulators ever since the introduction of power system. These insulators provide mechanical strength to the live lines and electrically isolate them. Because of its rigid structure, heavy weight, more over pollution flash-over, which is one of the main disadvantages, they are being replaced by polymeric insulators, these days. These polymeric insulators are light in weight and are comparatively less prone to pollution flashover because of its hydrophilic nature and are gaining more popularity these days. In the manufacturing process of these insulators, the check on polymeric materials used becomes very important as, the life of polymeric materials depends on the composition of materials used in producing the insulators. In this paper, polymeric material samples with different compositions of SiR are evaluated for their electrical and mechanical properties. The electric field simulation of polymeric material sample is carried out using ANSYS software. An attempt has been made to bring out best composition of Silicone Rubber material which can have better performance of insulator.

Journal 4 Research , 2018

This paper presents sensor based multilevel security system. It offers three levels of security u... more This paper presents sensor based multilevel security system. It offers three levels of security using PIR sensor, temperature sensor, password based digital lock. It is basically wireless sensor network using Arduino Mega 2560 and GSM .This wireless sensor network is made up of sub systems like PIR sensors, fire alarm module which is made by temperature sensor, digital lock system and burglar alarm module into a single automated architecture for the purpose of practical implementation in smart home system. When sensors get signals or obtained signals crosses reference value, Arduino controller sends an information to the user having mobile through the GSM (Global System for Mobile Communication) module over a wireless communication .All the modules work parallel and independently by sharing computational resource i.e. microcontroller together. Hence a low cost, accessible, auto-configurable, secure and remotely controlled solution has been developed for smart home security system.

International Journal for Scientific Research and Development, 2019

2022 IEEE 2nd Mysore Sub Section International Conference (MysuruCon)

In this paper, the communication between Arduino Mega microcontroller and mini thermal printer is... more In this paper, the communication between Arduino Mega microcontroller and mini thermal printer is implemented by hardware and software integration. The microcontroller is programmed to transfer the data from microcontroller to printer using a serial communication protocol such as universal asynchronous receiver and transmitter (UART) via Serial communication devices such as MAX232 converter, DB9 connector which is nothing but RS232 serial port, and universal serial bus (USB) communication port. Data sent by the microcontroller is made to print from the printer and it is shown in the result section. Digital pins '3' and '4' on the microcontroller are used as virtual Rx and Tx serial lines while leaving the main serial port open for debugging purposes. Interfacing between UART of microcontroller, MAX232, serial port, and the USB port of printer are well established with the complete schematic diagram. The mini thermal printer prints whatever is sent by the microcontroller. A simple code similar to the one used for the serial monitor works for the printer. The baud rate needs to be set at 9600 for the microcontroller to communicate with the printer. The system is designed to print data wirelessly using Bluetooth HC-05 for restaurant and hospital management applications. The system has high adaptability. It can be used in many situations not only for restaurant and hospital management.

2022 IEEE 2nd Mysore Sub Section International Conference (MysuruCon)

Digital technologies empower the transformation into data-driven, intelligent, agile, and autonom... more Digital technologies empower the transformation into data-driven, intelligent, agile, and autonomous farm operations and are typically considered a key to addressing the grand challenges in agriculture. To avoid unscientific water supply for plantation as well as to save the water and also yield the better crop, therefore, to increase production efficiency out of smart irrigation and to send the status of irrigation at standard environmental conditions, The Internet of Things (IoT) based prototype is designed and implemented. The prototype automatically turns ON /OFF the motor pump based on the moisture level of the soil by taking the temperature and humidity of the environment near the plantation into consideration (In India, the standard parameters for watering the vegetable plantation are Humidity>60%, Temperature < 25°C and Humidity<40%). The prototype is designed with an ESP32S microcontroller with DHT 11 and a moisture sensor. Arduino IDE development tool is used for programming ESP32S using embedded C programming language. The prototype is configured, programmed, and connected to the Arduino IoT cloud. The data of temperature, humidity, and moisture are received via message queuing telemetry transport (MQTT) protocol on IoT cloud through public IP therefore the data can be accessed worldwide. The authorized person can access the data and control the motor pump from anywhere across the world. The test data obtained out of the prototype over the cloud and at the system are presented in the result section.

AIP Conference Proceedings

This work introduces a small community of micro grid simulation platform. Which includes the micr... more This work introduces a small community of micro grid simulation platform. Which includes the micro grid application platform that is capable of simulating the model with flexibility. The prototype includes PV generated array, fuel cell, and wind turbine LES, circuit breakers, controllers and power electronics circuits. With the help of this model we can use renewable energy more effectively in small groups like homes, parks and offices. A case study is also performed on this platform. Results of simulation are also presented which shows the importance of the micro grid.

Advances in Intelligent Systems and Computing, 2019

This paper presents smart and optimal way of allocating power to the utility using global system ... more This paper presents smart and optimal way of allocating power to the utility using global system for mobile communication module-based remote automatic energy meter reading system. The designed device is installed with the energy meter at consumer premises. A smart communication is established between service provider and consumer using GSM module which is capable of calculating the energy consumed at different tariff and time. An artificial neural network using back-propagation approach is employed to obtain optimal allocation of service provider to meet the objective function. The novel idea of smart energy metering not only reduces the cost of energy consumption but also helps in proper repayments, optimal usage of power based on time of day tariff, and theft control with higher reliability and greater flexibility. A smart real-time prototype of the automatic energy reading system was built to demonstrate the effectiveness and efficiency of automatic meter reading, billing, and notification through the use of global system for mobile communication network.

Renewable and Sustainable Energy Reviews, 2018

Solar energy has been one of the environmental friendly sources of energy. The low cost solution ... more Solar energy has been one of the environmental friendly sources of energy. The low cost solution with minimal maintenance motivates towards photovoltaic (PV) cells based energy harnessing methods to meet energy demands. However, majority of conventional PV systems suffer from low energy conversion ratio (ECR) due to improper selection of the PV parameters and maximum power point tracking (MPPT) algorithm. Even ECR is adversely affected under varying environmental conditions. Therefore, accurate estimation of PV parameter can be of paramount significance for efficient PV model design. In addition, the development of a robust MPPT algorithm in conjunction with the effective PV design parameter can enable optimal ECR achievement. In this review paper, a number of literatures pertaining to PV parameter estimation and MPPT algorithms are discussed. Different methods including analytical, iterative and evolutionary computing algorithms are assessed for their efficacy towards PV parameter estimation. This review paper revealed that the analytical approaches suffer from singularity problem as well as limited mathematical calculation that confine its efficacy for optimal PV parameter estimation under dynamic irradiation pattern. The iterative approaches too are limited due to dynamic environment conditions. Our study has revealed that the evolutionary computing approaches, such as genetic algorithm (GA), particle swarm optimization (PSO), differential evolution (DE), etc. have played vital role in PV design parameter estimation and classical approaches suffer from local minima and convergence issues. This manuscript reveals that to enable an optimal PV design parameter estimation there is an inevitable need to incorporate either evolutionary computation schemes or apply an efficient multi-objective optimization measures. This as a result can not only alleviate local minima and convergence issues but can also enable swift and precise parameter estimation to assist optimal PV design and augmented ECR performance.

Energy Procedia, 2017

District heating networks are commonly addressed in the literature as one of the most effective s... more District heating networks are commonly addressed in the literature as one of the most effective solutions for decreasing the greenhouse gas emissions from the building sector. These systems require high investments which are returned through the heat sales. Due to the changed climate conditions and building renovation policies, heat demand in the future could decrease, prolonging the investment return period. The main scope of this paper is to assess the feasibility of using the heat demand-outdoor temperature function for heat demand forecast. The district of Alvalade, located in Lisbon (Portugal), was used as a case study. The district is consisted of 665 buildings that vary in both construction period and typology. Three weather scenarios (low, medium, high) and three district renovation scenarios were developed (shallow, intermediate, deep). To estimate the error, obtained heat demand values were compared with results from a dynamic heat demand model, previously developed and validated by the authors. The results showed that when only weather change is considered, the margin of error could be acceptable for some applications (the error in annual demand was lower than 20% for all weather scenarios considered). However, after introducing renovation scenarios, the error value increased up to 59.5% (depending on the weather and renovation scenarios combination considered). The value of slope coefficient increased on average within the range of 3.8% up to 8% per decade, that corresponds to the decrease in the number of heating hours of 22-139h during the heating season (depending on the combination of weather and renovation scenarios considered). On the other hand, function intercept increased for 7.8-12.7% per decade (depending on the coupled scenarios). The values suggested could be used to modify the function parameters for the scenarios considered, and improve the accuracy of heat demand estimations.

with the increase in the utilization of solar energy there is a need for renewable energy sources... more with the increase in the utilization of solar energy there is a need for renewable energy sources. A low frequency transformer is used to make project cost effective and sinusoidal pulse width modulation technique is employed for control circuit to obtain single phase pure sine wave inverter for PV applications. Distortion in the output waveform is minimized for both inductive and capacitive load by considering closed loop control PIC microcontroller is used to generate PWM pulses. The simulation is carried out using MATLAB to verify the presented approach.

In the consumer electronic industry buck converters are the most popular converters used now-a-da... more In the consumer electronic industry buck converters are the most popular converters used now-a-days. Among that Synchronous buck converters are becoming the industry standard because of their superior performance and higher efficiency. In this paper modeling and simulation of synchronous buck converter in digital mode is carried out. Now-a-days digital controllers are becoming popular because of their advantages like reprogrammability, immunity to analog component variations, flexibility etc. In digital controller the two nonlinear quantizes namely the analog-to-digital converter (ADC) and digital pulse width modulator (DPWM) are used. These blocks regulate the output voltage effectively against the input voltage and load current perturbations.

In this paper, the proposed system has demonstrated three ways of detecting alcohol level in the ... more In this paper, the proposed system has demonstrated three ways of detecting alcohol level in the body of the car driver and prevent car driver from driving the vehicle by turning off the ignition system. It also sends messages to concerned people. In order to detect breath alcohol level MQ-3 sensor is included in this module along with heartbeat sensor which can detect the heart beat rate of driver, facial recognition using webcam & MATLAB and a Wi-Fi module to send a message through the TCP/IP App, a Raspberry pi module to turn off the ignition and an alarm as prevention module. If a driver alcohol intake is more than the prescribed range, set by government the ignition will be made off provided either his heart beat abnormal or the driver is drowsy. In both the cases there will be a message sent to the App and from the App you can send it to family, friend, and well-wisher or nearest cop for the help. The system is developed considering the fact if driver is drunk and he needs a h...

AIP Conference Proceedings

Ceramic Insulators are used as electrical insulators ever since the introduction of power system.... more Ceramic Insulators are used as electrical insulators ever since the introduction of power system. These insulators provide mechanical strength to the live lines and electrically isolate them. Because of its rigid structure, heavy weight, more over pollution flash-over, which is one of the main disadvantages, they are being replaced by polymeric insulators, these days. These polymeric insulators are light in weight and are comparatively less prone to pollution flashover because of its hydrophilic nature and are gaining more popularity these days. In the manufacturing process of these insulators, the check on polymeric materials used becomes very important as, the life of polymeric materials depends on the composition of materials used in producing the insulators. In this paper, polymeric material samples with different compositions of SiR are evaluated for their electrical and mechanical properties. The electric field simulation of polymeric material sample is carried out using ANSYS software. An attempt has been made to bring out best composition of Silicone Rubber material which can have better performance of insulator.