Kehinde A Adeniji | Afe Babalola University, Ado-Ekiti (original) (raw)

Papers by Kehinde A Adeniji

Indonesian Journal of Electrical Engineering and Computer Science, 2022

This study presents a robust internet of things (IoT) based approach to solve the challenge of so... more This study presents a robust internet of things (IoT) based approach to solve the challenge of sorting fruit (watermelons) either as a raw material or final product in fruit manufacturing lines. A real-time objection detection technique called you only look once (YOLO) was used in the features detection, extraction, and matching of watermelons. The hardware framework of the system was developed on an Arduino microprocessor which integrates the sensors and camera into the system. The accuracy of the developed classifier is about 88% with a loss of 0.3, with images captured automatically saved on a designated folder which makes the detection and classification of upcoming products in the production line more accurate. The classified watermelons were further categorized into two possible states of ripe or rotten condition with an accuracy rate of 85%-90% with the tested data. These data were sent to the cloud via the Wi-Fi module and can be accessed using the Things Speak website (which is an application programming interface (API) for data retrieval and storage via the internet). An easy download option was incorporated into the system to obtain data from predictions and the cloud to a designated comma separated values (CSV) file locally for documentation and reference.

Indonesian Journal of Electrical Engineering and Computer Science

This study presents a robust internet of things (IoT) based approach to solve the challenge of so... more This study presents a robust internet of things (IoT) based approach to solve the challenge of sorting fruit (watermelons) either as a raw material or final product in fruit manufacturing lines. A real-time objection detection technique called you only look once (YOLO) was used in the features detection, extraction, and matching of watermelons. The hardware framework of the system was developed on an Arduino microprocessor which integrates the sensors and camera into the system. The accuracy of the developed classifier is about 88% with a loss of 0.3, with images captured automatically saved on a designated folder which makes the detection and classification of upcoming products in the production line more accurate. The classified watermelons were further categorized into two possible states of ripe or rotten condition with an accuracy rate of 85%-90% with the tested data. These data were sent to the cloud via the Wi-Fi module and can be accessed using the Things Speak website (whic...

Communication over the wireless network is becoming increasingly saturated as a result of global ... more Communication over the wireless network is becoming increasingly saturated as a result of global proliferation of wireless and mobile devices. Coupled with the requirement for in-home devices and appliances to share information in real-time, powerline communication (PLC) systems are gaining rapid popularity as a cost-effective alternative to wireless and other wire communication techniques. In this work, the salient properties of PLC systems including mechanism of signal propagation, channel and noise characteristics, as well as signal interference within the PLC network are expounded. Furthermore, the effect of interference of PLC signals with signals from other existing communication channels are emphasized.

Indian Journal of Science and Technology, 2016

Indonesian Journal of Electrical Engineering and Computer Science

In recent years, the evolvement of mobile devices which perform sophisticated functions have been... more In recent years, the evolvement of mobile devices which perform sophisticated functions have been on the rise. Mobile applications which solved engineering challenges are now available due to the high computational capabilities, large random access memory and storage location of the mobile devices. An Android application called signal detect, which measures network signal strength value from 2G-4G received on an android mobile device has been developed using android app development environment called Android studio. Validation becomes necessary because different readings were obtained on smartphones with different specifications. Two validation techniques were used to validate the data obtained. To know the efficiency of the application; a field strength meter was used to compare the readings received on the mobile device with the meter. It was observed that there is a time lag on the received values of the mobile device to the field strength meter. Therefore, a moving average techn...

Path loss analysis using key parameters and mathematical models is essential for accurate charact... more Path loss analysis using key parameters and mathematical models is essential for accurate characterization of a radio channel for a coverage area. It plays a fundamental role in predicting the radio coverage, path - loss, death zone and designing of an optim ized fixed and mobile network systems. This paper analysed and compared two models, Okumura and Okumura Hata on the basis of variation in antenna height and operational frequency of a base transmitting station (BTS) in Ado - Ekiti, Nigeria. The result obtain ed shows that Okumura Hata model has a better signal strength delivery to destination with a less reduced path loss variation compared to Okumura model. Even though there is significant gain of about 12dB when Okumura model parameters was varied it is not better than the signal strength Okumura Hata model will deliver to a destination

Published by College of Engineering Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria., Jun 30, 2020

Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country ... more Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country has been positively altered. Its explosive growth has brought huge revenues to the operators, as well as the government and at the same time benefited the citizens in many ways. However, the principal developmental factors that has continued to mar these benefits is the aggressive complaints from GSM subscribers regarding the horrible Quality of Service (QoS) rendered by the GSM operators across the country. As the number of subscribers of GSM in Nigeria increased, congestion rates also increased and there has been a huge demand for a decent QoS in the country. In this study, three key performance indicators (KPI) parameters, call setup success rate (CSSR), received signal level (RSL) and call drop rate (CDR) were used in assessing the performance of two of the major GSM networks in Ilorin Metropolis of Nigeria, which have been tagged Network "A" and Network "B". A and B monitored are far from providing reliable services to Nigerians. None of the networks in the study met the ≥ 98% CSSR required by the N.C.C. regulations, and none met the ≤ 2% CDR required by the N.C.C. regulations. The problems GSM operation encountered have been attributed to a number of challenges, with cited faults ranging from the Network providers, to regulatory agencies, and even to the Nigerian Government.

2022 30th Southern African Universities Power Engineering Conference (SAUPEC), 2022

This paper talked about how beginners can learn use Visual Basic.net to develop web applications ... more This paper talked about how beginners can learn use Visual Basic.net to develop web applications and taken into consideration the various stages of application development( software requirement, analysis, design and testing) and how web applications can be either within and intranet or via the internet together with the database system of the application

Review of Computer Engineering Research, 2019

2021 IEEE International IOT, Electronics and Mechatronics Conference (IEMTRONICS), 2021

A granary is designed to manage and control different environmental factors to ensure the desirab... more A granary is designed to manage and control different environmental factors to ensure the desirable quality of the stored bulked grains, hence an effective monitoring system. This paper aims at establishing a model for an effective granary system to achieve multi-objective balance on real-time monitoring, minimum deployable nodes, coverage efficiency, longer node life, reduced cost and reduced power consumption. Multi-variable linear regression analysis was used to develop the mathematical model which formed the basis for formulating the objective function of the generic algorithm requisite. The simulated result of the model was validated by using a weighted sum method. The optimized model by using the available constraints is a template for a developed network of wireless nodes approach to establish a promising and resourceful representation of an operable granary monitoring system design.

Indonesian Journal of Electrical Engineering and Computer Science, 2021

In recent years, the evolvement of mobile devices which perform sophisticated functions have been... more In recent years, the evolvement of mobile devices which perform sophisticated functions have been on the rise. Mobile applications which solved engineering challenges are now available due to the high computational capabilities, large random access memory and storage location of the mobile devices. An Android application called signal detect, which measures network signal strength value from 2G-4G received on an android mobile device has been developed using android app development environment called Android studio. Validation becomes necessary because different readings were obtained on smartphones with different specifications. Two validation techniques were used to validate the data obtained. To know the efficiency of the application; a field strength meter was used to compare the readings received on the mobile device with the meter. It was observed that there is a time lag on the received values of the mobile device to the field strength meter. Therefore, a moving average technique was used to correlate the two data which increased the correlation coefficient to about 0.85.

Indonesian Journal of Electrical Engineering and Computer Science , 2020

In recent years, the evolvement of mobile devices which perform sophisticated functions have been... more In recent years, the evolvement of mobile devices which perform sophisticated functions have been on the rise. Mobile applications which solved engineering challenges are now available due to the high computational capabilities, large random access memory and storage location of the mobile devices. An Android application called signal detect, which measures network signal strength value from 2G-4G received on an android mobile device has been developed using android app development environment called Android studio. Validation becomes necessary because different readings were obtained on smartphones with different specifications. Two validation techniques were used to validate the data obtained. To know the efficiency of the application; a field strength meter was used to compare the readings received on the mobile device with the meter. It was observed that there is a time lag on the received values of the mobile device to the field strength meter. Therefore, a moving average technique was used to correlate the two data which increased the correlation coefficient to about 0.85.

IEEE, 2020

Power system components are susceptible to failures which causes undesirable interruptions to con... more Power system components are susceptible to failures which causes undesirable interruptions to consumer's power supply thus affecting the overall power system availability. Reliability evaluation is therefore important in power system studies to ensure continuity of power supply in line with the country's increasing population and the need to foster industrialization. This study is centered on reliability assessment of Mofor Injection Substation. This assessment evaluates the performance of the Mofor Injection substation considering various system parameters which contribute to the seamless operation of the station. Historical data obtained from the power substations from January, 2017 to December, 2017 were used to analyze the Injection Substation power reliability. The results obtained revealed a power availability index (ASAI) of 0.7683796 and 0.768968 for Ekete and Orhuwhorun substations respectively. Also, other reliability indices evaluated were SAIDI, CAIDI and SAIFI. The aforementioned reliability results reveals that power distribution at Mofor injection substation can be said to be unreliable, inefficient, undesirable and unstable.

AJERD , 2020

Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country ... more Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country has been positively altered. Its explosive growth has brought huge revenues to the operators, as well as the government and at the same time benefited the citizens in many ways. However, the principal developmental factors that has continued to mar these benefits is the aggressive complaints from GSM subscribers regarding the horrible Quality of Service (QoS) rendered by the GSM operators across the country. As the number of subscribers of GSM in Nigeria increased, congestion rates also increased and there has been a huge demand for a decent QoS in the country. In this study, three key performance indicators (KPI) parameters, call setup success rate (CSSR), received signal level (RSL) and call drop rate (CDR) were used in assessing the performance of two of the major GSM networks in Ilorin Metropolis of Nigeria, which have been tagged Network "A" and Network "B". A and B monitored are far from providing reliable services to Nigerians. None of the networks in the study met the ≥ 98% CSSR required by the N.C.C. regulations, and none met the ≤ 2% CDR required by the N.C.C. regulations. The problems GSM operation encountered have been attributed to a number of challenges, with cited faults ranging from the Network providers, to regulatory agencies, and even to the Nigerian Government.

International Journal for Computer Science & Engineering, 2015

This paper talked about how beginners can learn how to use Visual Basic.net to develop web applic... more This paper talked about how beginners can learn how to use Visual Basic.net to develop web applications and taken into consideration the various stages of application development (software requirement, analysis, design and testing) and information on how web applications can be accessed through either intranet or via the internet together with the database system of the application.

Conscentia Beam, Oct 2019

This work was able to integrate Internet of Things expertise on Principal Count Analysis (PCA) al... more This work was able to integrate Internet of Things expertise on Principal Count Analysis (PCA) algorithm for facial recognition optimization. An internet-based real-time facial recognition system was developed using PCA algorithm that can detect and track faces, a label name that indicates the face identified was also incorporated to easily track the face in situations where multiple faces are identified at the same time. A router was used to set up a wireless connection with an internet protocol (IP)-camera via the IP-camera firmware. As the router broadcast this connection, a link is set up with a personal computer through the network and sharing centre tab on the computer system, thereby creating a wireless connection between the computer and the camera on the internet. Graphical interface designed on MATLAB was used to access the feed from the camera which PCA algorithm explored in detecting and tracking faces in real-time. Security features such as timestamp and database were also integrated with the system developed.

Path loss analysis using key parameters and mathematical models is essential for accurate charact... more Path loss analysis using key parameters and mathematical models is essential for accurate characterization of a radio channel for a coverage area. It plays a fundamental role in predicting the radio coverage, path-loss, death zone and designing of an optimized fixed and mobile network systems. This paper analysed and compared two models, Okumura and Okumura Hata on the basis of variation in antenna height and operational frequency of a base transmitting station (BTS) in Ado-Ekiti, Nigeria. The result obtained shows that Okumura Hata model has a better signal strength delivery to destination with a less reduced path loss variation compared to Okumura model. Even though there is significant gain of about 12dB when Okumura model parameters was varied it is not better than the signal strength Okumura Hata model will deliver to a destination.

Objectives: Home automation is achievable with an integrated approach using Wireless Sensor Netwo... more Objectives: Home automation is achievable with an integrated approach using Wireless Sensor Networks (WSNs). This
paper presents the implementation of such integrated approach to automating the air-conditioning of various apartments.
Methods/Statistical Analysis: The developing of an integrated system consisting of network of wireless sensor
nodes with well selected components and resourceful capabilities is explained. This network is incorporated to a control
unit connected to air-conditioning systems in various home apartments for automation and central remote control
through short service message (sms). Findings: An integrated system comprising three resulting characterized sensor
nodes and one sink node being integrated with the automated control unit for the air-conditioning systems were implemented
and tested. The system was designed with well selected intelligent temperature/humidity DHT22 sensors,
homogenous XBee radios, arduino boards and wireless network protocol to deliver remotely monitored parameters
from the sensor nodes to a base station. The resulting composite units of the implemented system were products of the
best parameters trade-off in the selection of components and protocols. The same sensor nodes can be increased to the
number of target apartments and integrated to the network system. The transfer of monitored data to the central hub
was wireless and the mode of sending commands to the control unit was through short message service. The approach
conserves energy consumption as it saves the loss time involved in continuous operation of air-conditioning systems.
The system also reduces the health risk in poorly air-conditioned environment for elderly and infants. Applications/
Improvements: The approach can be extended to controlling other appliances in full home automation set-up.

Indonesian Journal of Electrical Engineering and Computer Science, 2022

This study presents a robust internet of things (IoT) based approach to solve the challenge of so... more This study presents a robust internet of things (IoT) based approach to solve the challenge of sorting fruit (watermelons) either as a raw material or final product in fruit manufacturing lines. A real-time objection detection technique called you only look once (YOLO) was used in the features detection, extraction, and matching of watermelons. The hardware framework of the system was developed on an Arduino microprocessor which integrates the sensors and camera into the system. The accuracy of the developed classifier is about 88% with a loss of 0.3, with images captured automatically saved on a designated folder which makes the detection and classification of upcoming products in the production line more accurate. The classified watermelons were further categorized into two possible states of ripe or rotten condition with an accuracy rate of 85%-90% with the tested data. These data were sent to the cloud via the Wi-Fi module and can be accessed using the Things Speak website (which is an application programming interface (API) for data retrieval and storage via the internet). An easy download option was incorporated into the system to obtain data from predictions and the cloud to a designated comma separated values (CSV) file locally for documentation and reference.

Indonesian Journal of Electrical Engineering and Computer Science

This study presents a robust internet of things (IoT) based approach to solve the challenge of so... more This study presents a robust internet of things (IoT) based approach to solve the challenge of sorting fruit (watermelons) either as a raw material or final product in fruit manufacturing lines. A real-time objection detection technique called you only look once (YOLO) was used in the features detection, extraction, and matching of watermelons. The hardware framework of the system was developed on an Arduino microprocessor which integrates the sensors and camera into the system. The accuracy of the developed classifier is about 88% with a loss of 0.3, with images captured automatically saved on a designated folder which makes the detection and classification of upcoming products in the production line more accurate. The classified watermelons were further categorized into two possible states of ripe or rotten condition with an accuracy rate of 85%-90% with the tested data. These data were sent to the cloud via the Wi-Fi module and can be accessed using the Things Speak website (whic...

Communication over the wireless network is becoming increasingly saturated as a result of global ... more Communication over the wireless network is becoming increasingly saturated as a result of global proliferation of wireless and mobile devices. Coupled with the requirement for in-home devices and appliances to share information in real-time, powerline communication (PLC) systems are gaining rapid popularity as a cost-effective alternative to wireless and other wire communication techniques. In this work, the salient properties of PLC systems including mechanism of signal propagation, channel and noise characteristics, as well as signal interference within the PLC network are expounded. Furthermore, the effect of interference of PLC signals with signals from other existing communication channels are emphasized.

Indian Journal of Science and Technology, 2016

Indonesian Journal of Electrical Engineering and Computer Science

In recent years, the evolvement of mobile devices which perform sophisticated functions have been... more In recent years, the evolvement of mobile devices which perform sophisticated functions have been on the rise. Mobile applications which solved engineering challenges are now available due to the high computational capabilities, large random access memory and storage location of the mobile devices. An Android application called signal detect, which measures network signal strength value from 2G-4G received on an android mobile device has been developed using android app development environment called Android studio. Validation becomes necessary because different readings were obtained on smartphones with different specifications. Two validation techniques were used to validate the data obtained. To know the efficiency of the application; a field strength meter was used to compare the readings received on the mobile device with the meter. It was observed that there is a time lag on the received values of the mobile device to the field strength meter. Therefore, a moving average techn...

Path loss analysis using key parameters and mathematical models is essential for accurate charact... more Path loss analysis using key parameters and mathematical models is essential for accurate characterization of a radio channel for a coverage area. It plays a fundamental role in predicting the radio coverage, path - loss, death zone and designing of an optim ized fixed and mobile network systems. This paper analysed and compared two models, Okumura and Okumura Hata on the basis of variation in antenna height and operational frequency of a base transmitting station (BTS) in Ado - Ekiti, Nigeria. The result obtain ed shows that Okumura Hata model has a better signal strength delivery to destination with a less reduced path loss variation compared to Okumura model. Even though there is significant gain of about 12dB when Okumura model parameters was varied it is not better than the signal strength Okumura Hata model will deliver to a destination

Published by College of Engineering Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria., Jun 30, 2020

Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country ... more Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country has been positively altered. Its explosive growth has brought huge revenues to the operators, as well as the government and at the same time benefited the citizens in many ways. However, the principal developmental factors that has continued to mar these benefits is the aggressive complaints from GSM subscribers regarding the horrible Quality of Service (QoS) rendered by the GSM operators across the country. As the number of subscribers of GSM in Nigeria increased, congestion rates also increased and there has been a huge demand for a decent QoS in the country. In this study, three key performance indicators (KPI) parameters, call setup success rate (CSSR), received signal level (RSL) and call drop rate (CDR) were used in assessing the performance of two of the major GSM networks in Ilorin Metropolis of Nigeria, which have been tagged Network "A" and Network "B". A and B monitored are far from providing reliable services to Nigerians. None of the networks in the study met the ≥ 98% CSSR required by the N.C.C. regulations, and none met the ≤ 2% CDR required by the N.C.C. regulations. The problems GSM operation encountered have been attributed to a number of challenges, with cited faults ranging from the Network providers, to regulatory agencies, and even to the Nigerian Government.

2022 30th Southern African Universities Power Engineering Conference (SAUPEC), 2022

This paper talked about how beginners can learn use Visual Basic.net to develop web applications ... more This paper talked about how beginners can learn use Visual Basic.net to develop web applications and taken into consideration the various stages of application development( software requirement, analysis, design and testing) and how web applications can be either within and intranet or via the internet together with the database system of the application

Review of Computer Engineering Research, 2019

2021 IEEE International IOT, Electronics and Mechatronics Conference (IEMTRONICS), 2021

A granary is designed to manage and control different environmental factors to ensure the desirab... more A granary is designed to manage and control different environmental factors to ensure the desirable quality of the stored bulked grains, hence an effective monitoring system. This paper aims at establishing a model for an effective granary system to achieve multi-objective balance on real-time monitoring, minimum deployable nodes, coverage efficiency, longer node life, reduced cost and reduced power consumption. Multi-variable linear regression analysis was used to develop the mathematical model which formed the basis for formulating the objective function of the generic algorithm requisite. The simulated result of the model was validated by using a weighted sum method. The optimized model by using the available constraints is a template for a developed network of wireless nodes approach to establish a promising and resourceful representation of an operable granary monitoring system design.

Indonesian Journal of Electrical Engineering and Computer Science, 2021

In recent years, the evolvement of mobile devices which perform sophisticated functions have been... more In recent years, the evolvement of mobile devices which perform sophisticated functions have been on the rise. Mobile applications which solved engineering challenges are now available due to the high computational capabilities, large random access memory and storage location of the mobile devices. An Android application called signal detect, which measures network signal strength value from 2G-4G received on an android mobile device has been developed using android app development environment called Android studio. Validation becomes necessary because different readings were obtained on smartphones with different specifications. Two validation techniques were used to validate the data obtained. To know the efficiency of the application; a field strength meter was used to compare the readings received on the mobile device with the meter. It was observed that there is a time lag on the received values of the mobile device to the field strength meter. Therefore, a moving average technique was used to correlate the two data which increased the correlation coefficient to about 0.85.

Indonesian Journal of Electrical Engineering and Computer Science , 2020

In recent years, the evolvement of mobile devices which perform sophisticated functions have been... more In recent years, the evolvement of mobile devices which perform sophisticated functions have been on the rise. Mobile applications which solved engineering challenges are now available due to the high computational capabilities, large random access memory and storage location of the mobile devices. An Android application called signal detect, which measures network signal strength value from 2G-4G received on an android mobile device has been developed using android app development environment called Android studio. Validation becomes necessary because different readings were obtained on smartphones with different specifications. Two validation techniques were used to validate the data obtained. To know the efficiency of the application; a field strength meter was used to compare the readings received on the mobile device with the meter. It was observed that there is a time lag on the received values of the mobile device to the field strength meter. Therefore, a moving average technique was used to correlate the two data which increased the correlation coefficient to about 0.85.

IEEE, 2020

Power system components are susceptible to failures which causes undesirable interruptions to con... more Power system components are susceptible to failures which causes undesirable interruptions to consumer's power supply thus affecting the overall power system availability. Reliability evaluation is therefore important in power system studies to ensure continuity of power supply in line with the country's increasing population and the need to foster industrialization. This study is centered on reliability assessment of Mofor Injection Substation. This assessment evaluates the performance of the Mofor Injection substation considering various system parameters which contribute to the seamless operation of the station. Historical data obtained from the power substations from January, 2017 to December, 2017 were used to analyze the Injection Substation power reliability. The results obtained revealed a power availability index (ASAI) of 0.7683796 and 0.768968 for Ekete and Orhuwhorun substations respectively. Also, other reliability indices evaluated were SAIDI, CAIDI and SAIFI. The aforementioned reliability results reveals that power distribution at Mofor injection substation can be said to be unreliable, inefficient, undesirable and unstable.

AJERD , 2020

Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country ... more Following the rollout of GSM services across Nigeria, the socioeconomic landscape of the country has been positively altered. Its explosive growth has brought huge revenues to the operators, as well as the government and at the same time benefited the citizens in many ways. However, the principal developmental factors that has continued to mar these benefits is the aggressive complaints from GSM subscribers regarding the horrible Quality of Service (QoS) rendered by the GSM operators across the country. As the number of subscribers of GSM in Nigeria increased, congestion rates also increased and there has been a huge demand for a decent QoS in the country. In this study, three key performance indicators (KPI) parameters, call setup success rate (CSSR), received signal level (RSL) and call drop rate (CDR) were used in assessing the performance of two of the major GSM networks in Ilorin Metropolis of Nigeria, which have been tagged Network "A" and Network "B". A and B monitored are far from providing reliable services to Nigerians. None of the networks in the study met the ≥ 98% CSSR required by the N.C.C. regulations, and none met the ≤ 2% CDR required by the N.C.C. regulations. The problems GSM operation encountered have been attributed to a number of challenges, with cited faults ranging from the Network providers, to regulatory agencies, and even to the Nigerian Government.

International Journal for Computer Science & Engineering, 2015

This paper talked about how beginners can learn how to use Visual Basic.net to develop web applic... more This paper talked about how beginners can learn how to use Visual Basic.net to develop web applications and taken into consideration the various stages of application development (software requirement, analysis, design and testing) and information on how web applications can be accessed through either intranet or via the internet together with the database system of the application.

Conscentia Beam, Oct 2019

This work was able to integrate Internet of Things expertise on Principal Count Analysis (PCA) al... more This work was able to integrate Internet of Things expertise on Principal Count Analysis (PCA) algorithm for facial recognition optimization. An internet-based real-time facial recognition system was developed using PCA algorithm that can detect and track faces, a label name that indicates the face identified was also incorporated to easily track the face in situations where multiple faces are identified at the same time. A router was used to set up a wireless connection with an internet protocol (IP)-camera via the IP-camera firmware. As the router broadcast this connection, a link is set up with a personal computer through the network and sharing centre tab on the computer system, thereby creating a wireless connection between the computer and the camera on the internet. Graphical interface designed on MATLAB was used to access the feed from the camera which PCA algorithm explored in detecting and tracking faces in real-time. Security features such as timestamp and database were also integrated with the system developed.

Path loss analysis using key parameters and mathematical models is essential for accurate charact... more Path loss analysis using key parameters and mathematical models is essential for accurate characterization of a radio channel for a coverage area. It plays a fundamental role in predicting the radio coverage, path-loss, death zone and designing of an optimized fixed and mobile network systems. This paper analysed and compared two models, Okumura and Okumura Hata on the basis of variation in antenna height and operational frequency of a base transmitting station (BTS) in Ado-Ekiti, Nigeria. The result obtained shows that Okumura Hata model has a better signal strength delivery to destination with a less reduced path loss variation compared to Okumura model. Even though there is significant gain of about 12dB when Okumura model parameters was varied it is not better than the signal strength Okumura Hata model will deliver to a destination.

Objectives: Home automation is achievable with an integrated approach using Wireless Sensor Netwo... more Objectives: Home automation is achievable with an integrated approach using Wireless Sensor Networks (WSNs). This
paper presents the implementation of such integrated approach to automating the air-conditioning of various apartments.
Methods/Statistical Analysis: The developing of an integrated system consisting of network of wireless sensor
nodes with well selected components and resourceful capabilities is explained. This network is incorporated to a control
unit connected to air-conditioning systems in various home apartments for automation and central remote control
through short service message (sms). Findings: An integrated system comprising three resulting characterized sensor
nodes and one sink node being integrated with the automated control unit for the air-conditioning systems were implemented
and tested. The system was designed with well selected intelligent temperature/humidity DHT22 sensors,
homogenous XBee radios, arduino boards and wireless network protocol to deliver remotely monitored parameters
from the sensor nodes to a base station. The resulting composite units of the implemented system were products of the
best parameters trade-off in the selection of components and protocols. The same sensor nodes can be increased to the
number of target apartments and integrated to the network system. The transfer of monitored data to the central hub
was wireless and the mode of sending commands to the control unit was through short message service. The approach
conserves energy consumption as it saves the loss time involved in continuous operation of air-conditioning systems.
The system also reduces the health risk in poorly air-conditioned environment for elderly and infants. Applications/
Improvements: The approach can be extended to controlling other appliances in full home automation set-up.