Emmanuel S A Ajisegiri | University of Agriculture, Abeokuta, Nigeria (original) (raw)
Papers by Emmanuel S A Ajisegiri
Research Square (Research Square), Dec 11, 2023
This study introduces a comprehensive framework aimed at automating the process of detecting yam ... more This study introduces a comprehensive framework aimed at automating the process of detecting yam tuber quality attributes. This is achieved through the integration of Internet of Things (IoT) devices and robotic systems. The primary focus of the study is the development of specialized computer codes that extract relevant image features and categorize yam tubers into one of three classes: "Good," "Diseased," or "Insect Infected." By employing a variety of machine learning algorithms, including tree algorithms, support vector machines (SVMs), and k-nearest neighbors (KNN), the codes achieved an impressive accuracy of over 90% in effective classi cation. Furthermore, a robotic algorithm was designed utilizing an arti cial neural network (ANN), which exhibited a 92.3% accuracy based on its confusion matrix analysis. The effectiveness and accuracy of the developed codes were substantiated through deployment testing. Although a few instances of misclassi cation were observed, the overall outcomes indicate signi cant potential for transforming yam quality assessment and contributing to the realm of precision agriculture. This study is in alignment with prior research endeavors within the eld, highlighting the pivotal role of automated and precise quality assessment. The integration of IoT devices and robotic systems in agricultural practices presents exciting possibilities for data-driven decision-making and heightened productivity. By minimizing human intervention and providing real-time insights, the study approach has the potential to optimize yam quality assessment processes. Therefore, this study successfully demonstrates the practical application of IoT and robotic technologies for the purpose of yam quality detection, laying the groundwork for progress in the agricultural sector. 1.0 INTRODUCTION There are over 600 species of yam. The crop yam belongs to a plant family called "Dioscoreaceae" of a genus described as "Dioscorea L." (Alexander
IOSR Journal of Electrical and Electronics Engineering, 2014
Cleaner Engineering and Technology
2023 International Conference on Science, Engineering and Business for Sustainable Development Goals (SEB-SDG)
Materials Today: Proceedings
The International Journal of Organic Agriculture Research and Development, Jul 14, 2019
Journal of Natural Sciences Engineering and Technology, 2018
Handling and removal of harmful waste from our environment is a collective responsibility that al... more Handling and removal of harmful waste from our environment is a collective responsibility that all must embrace to make the world a safe habitat. A low cost environmental friendly waste picker was devel-oped. Biometric force evaluation of the end user obtained averaged 469.73 N. The refuse picker was calibrated to obtain the spring constant of 3030.73 N/m. The tool was tested and found to perform well in picking objects of different weights and of regular and irregular shapes ranging from 0.12 g to 2.72 kg. Serrated jaw enhanced the picking performance of the unit whilst picking a circular object without slipping off. The maximum safe horizontal and vertical loading recommended for the tool at picking was 0.5 kg. The picker was used to pick the smallest item, a pin of diameter 0.70 mm and weight of 0.12 g successfully. This tool can be very handy in the hospital where harmful waste such as needles, syringes and other unhealthy substances and waste must be removed from the environmen...
Journal of Natural Sciences Engineering and Technology, 2014
The timely production of diced dough for the final preparation of chin-chin (a confectionery made... more The timely production of diced dough for the final preparation of chin-chin (a confectionery made of fried dough) have not witnessed any substantial development among the women folk that engaged in such activities in Nigeria. A manually operated dough-dicing machine was designed and developed for the timely production of diced dough. The dough dicer offers a better method of dicing dough into various desired shapes and lengths, which may not be possible with the existing processing method. Preliminary test of the manually operated dough dicer showed that a minimal pressure of 4473.122 Pa is sufficient to force out the dough through the die outlet. The low cost dough dicer requires the minimum manual power input of 0.16 Watt for the dicing of the dough with a density of 1126.4 Kg/m3. The overall performance of the manually operated dough dicer showed that the machine would be of great benefit to the small scale producers of the confectionery
Journal of Food Science and Technology-mysore, 2009
International Journal of Chemical Engineering and Applications, 2014
Journal of Natural Sciences Engineering and Technology, 2018
Development of precision machines to handle some of the field activities involved in the cultivat... more Development of precision machines to handle some of the field activities involved in the cultivation of cassava is a highly welcomed project among young enterprising farmers who are keen in resolving the posterity of their wellbeing as a big time farmer. Mechanization of cassava in the tropics is grossly hampered by lack of extensive knowlegde on the behaviour, physical properties of cassava stems and parameters that have great influence on the handling of the stems during cultivation, hence the limita-tion of advancing the present semi-automatic planter to fully automated one is still a mirage in the tropics. This paper presents the flow properties of cassava cuttings that can lend it to proper handling in a metering machine. A variable inclined wood surface rig with an ejection outlet was used to study the properties of the stem. Measured cassava stem predictive parameters; diamater, lentgh,weight; angle variation on the rig; response parameters; percentage ejected, percentage sli...
2023 International Conference on Science, Engineering and Business for Sustainable Development Goals (SEB-SDG)
Cattle rustling has become a threat and a major crime in Nigeria recently. To minimize this, ther... more Cattle rustling has become a threat and a major crime in Nigeria recently. To minimize this, there is a need to ensure cattle safety and provide substantial security when rearing cattle both in ranches and open fields. This necessitates the need to deploy technology to attenuate cattle rustling. This study developed and tested an animal tracking device using the Internet of Things (IoT). The developed system consists of three units that were interfaced together. These units are the GPS Tracker (made up of the microcontroller, ATtiny chips©, ATMega328©, etc.), the Mobile Application, and the Database unit. The developed animal tracker was tested and the results showed that the constructed tracker is equivalent to the standard GPS and adds more information about cattle location, breed, color, weight, etc. The developed GPS tracker is a long-time security and monitoring aid that will be used to eradicate cattle rustling in Nigeria and identify cattle and other information which enables easy identification of cattle when lost. The addition of extra features such as location history was also implemented to improve the overall user experience.
The system is combined with the microcontroller programmable technology and intelligent device sp... more The system is combined with the microcontroller programmable technology and intelligent device specification. By detecting the values of sensors it can easily find out the temperature, light, gas present in the given area. So that critical condition can be avoided and preventive measures are successfully implemented.In system zigbee is used as wireless module at both ends for transferring the data from one section to other section. This paper deals with industrial environment monitor and device control using microcontroller. In industries there is need for data monitoring and supervisory control which overcomes human intervention as well as overall efficiency and safety.Performance of the proposed system is verified and good effects are achieved in practical application.A new design method is proposed in this paper is that the multisensors are controlled using the single system.This paper presented different technologies, parameters to analyze environment.A sensor interface device i...
International Journal of Engineering Research in Africa, Mar 15, 2022
Waste wigs are often disposed of in their volume in landfills, thus constituting a nuisance to th... more Waste wigs are often disposed of in their volume in landfills, thus constituting a nuisance to the environment. Recycling these wigs in masonry bricks is a way via which they can be recycled and reused. On such premises, waste wig fiber (WWF) was recycled by incorporating it into the cement-sand-clay composite mix for masonry brick production. The challenges masonry bricks face include shrinkage and water susceptibility, hence the contributory effect of WWF on physio-hydric properties was assessed in this study. Sample preparation entailed the blending of cement, sand, clay soil, and waste wig fiber. The control mix was prepared by commixing clay with 10 % cement (by clay volume) and 20 % sand (by clay volume). Other mix proportions were reinforced with 1, 2, 3, 4, and 5 % WWF by clay volume. Prepared composites brick samples were cured for 28 and 56 days and tested for physio-hydric properties. Results revealed that WWF contributed significantly to improving hydro-resisting properties by minimizing porosity, water and moisture absorption, capillary suction, and water permeability. Furthermore, WWF contributed to dimensional stability by reducing shrinkages and weight loss. Hydration time impacts significantly in reducing apparent porosity, water permeability coefficient, moisture and water absorption, capillary suction coefficient; increasing apparent density, weight loss, linear, and volumetric shrinkage. Prolonged time in water ensued higher water absorption. The general outcome depicts that WWF showed promising performance in bricks developed in enhancing water and moisture susceptibility resistance and promoting mass and dimensional stability; hence, it can be employed in reinforcing cement adobe bricks.
SSRN Electronic Journal
Food security is the aspiration of every nation. To achieve this, particularly in Developing Coun... more Food security is the aspiration of every nation. To achieve this, particularly in Developing Countries, there is a need to reduce wastage by storing staple foods grains beyond their production seasons. Longer storage requires human presence, monitoring and control of the storage environment which may be laborious, demanding and sometimes outrightly unsafe. Therefore, the needs to employ automation and artificial intelligence become necessary to control this storage environment. This study developed an automated, intelligent silo bin that controls the storage environment of the system for the small-scale rural farmers, of which over 70% of their population still depend on agriculture, using Internet of Things (IoT). The developed system consists of three units interfaced together. These units are the pro-type 2-ton (2,000 kg) silo structure, the embedded system (made up of the microcontroller, sensors and relays). The system is integrated to an IoT system (made up of mobile application (BLYNK), Wi-Fi module and ultrasonic atomizer) and the air blowing system (consisting of blower fan and heater). The developed smart system was tested and the test run results showed that it successfully monitors and controls storage air temperature, humidity, air pressure, grain moisture, insect infestation and CO 2 levels, the key parameters for long term storability of grains. The coding process could be set to suit different grains and storage conditions required for their effective storage. Although the silo bin structure used for testing was for a particular prototype , it can be geometrically scaled for many silo structures.
Mathematical Modelling of Engineering Problems
Research Square (Research Square), Dec 11, 2023
This study introduces a comprehensive framework aimed at automating the process of detecting yam ... more This study introduces a comprehensive framework aimed at automating the process of detecting yam tuber quality attributes. This is achieved through the integration of Internet of Things (IoT) devices and robotic systems. The primary focus of the study is the development of specialized computer codes that extract relevant image features and categorize yam tubers into one of three classes: "Good," "Diseased," or "Insect Infected." By employing a variety of machine learning algorithms, including tree algorithms, support vector machines (SVMs), and k-nearest neighbors (KNN), the codes achieved an impressive accuracy of over 90% in effective classi cation. Furthermore, a robotic algorithm was designed utilizing an arti cial neural network (ANN), which exhibited a 92.3% accuracy based on its confusion matrix analysis. The effectiveness and accuracy of the developed codes were substantiated through deployment testing. Although a few instances of misclassi cation were observed, the overall outcomes indicate signi cant potential for transforming yam quality assessment and contributing to the realm of precision agriculture. This study is in alignment with prior research endeavors within the eld, highlighting the pivotal role of automated and precise quality assessment. The integration of IoT devices and robotic systems in agricultural practices presents exciting possibilities for data-driven decision-making and heightened productivity. By minimizing human intervention and providing real-time insights, the study approach has the potential to optimize yam quality assessment processes. Therefore, this study successfully demonstrates the practical application of IoT and robotic technologies for the purpose of yam quality detection, laying the groundwork for progress in the agricultural sector. 1.0 INTRODUCTION There are over 600 species of yam. The crop yam belongs to a plant family called "Dioscoreaceae" of a genus described as "Dioscorea L." (Alexander
IOSR Journal of Electrical and Electronics Engineering, 2014
Cleaner Engineering and Technology
2023 International Conference on Science, Engineering and Business for Sustainable Development Goals (SEB-SDG)
Materials Today: Proceedings
The International Journal of Organic Agriculture Research and Development, Jul 14, 2019
Journal of Natural Sciences Engineering and Technology, 2018
Handling and removal of harmful waste from our environment is a collective responsibility that al... more Handling and removal of harmful waste from our environment is a collective responsibility that all must embrace to make the world a safe habitat. A low cost environmental friendly waste picker was devel-oped. Biometric force evaluation of the end user obtained averaged 469.73 N. The refuse picker was calibrated to obtain the spring constant of 3030.73 N/m. The tool was tested and found to perform well in picking objects of different weights and of regular and irregular shapes ranging from 0.12 g to 2.72 kg. Serrated jaw enhanced the picking performance of the unit whilst picking a circular object without slipping off. The maximum safe horizontal and vertical loading recommended for the tool at picking was 0.5 kg. The picker was used to pick the smallest item, a pin of diameter 0.70 mm and weight of 0.12 g successfully. This tool can be very handy in the hospital where harmful waste such as needles, syringes and other unhealthy substances and waste must be removed from the environmen...
Journal of Natural Sciences Engineering and Technology, 2014
The timely production of diced dough for the final preparation of chin-chin (a confectionery made... more The timely production of diced dough for the final preparation of chin-chin (a confectionery made of fried dough) have not witnessed any substantial development among the women folk that engaged in such activities in Nigeria. A manually operated dough-dicing machine was designed and developed for the timely production of diced dough. The dough dicer offers a better method of dicing dough into various desired shapes and lengths, which may not be possible with the existing processing method. Preliminary test of the manually operated dough dicer showed that a minimal pressure of 4473.122 Pa is sufficient to force out the dough through the die outlet. The low cost dough dicer requires the minimum manual power input of 0.16 Watt for the dicing of the dough with a density of 1126.4 Kg/m3. The overall performance of the manually operated dough dicer showed that the machine would be of great benefit to the small scale producers of the confectionery
Journal of Food Science and Technology-mysore, 2009
International Journal of Chemical Engineering and Applications, 2014
Journal of Natural Sciences Engineering and Technology, 2018
Development of precision machines to handle some of the field activities involved in the cultivat... more Development of precision machines to handle some of the field activities involved in the cultivation of cassava is a highly welcomed project among young enterprising farmers who are keen in resolving the posterity of their wellbeing as a big time farmer. Mechanization of cassava in the tropics is grossly hampered by lack of extensive knowlegde on the behaviour, physical properties of cassava stems and parameters that have great influence on the handling of the stems during cultivation, hence the limita-tion of advancing the present semi-automatic planter to fully automated one is still a mirage in the tropics. This paper presents the flow properties of cassava cuttings that can lend it to proper handling in a metering machine. A variable inclined wood surface rig with an ejection outlet was used to study the properties of the stem. Measured cassava stem predictive parameters; diamater, lentgh,weight; angle variation on the rig; response parameters; percentage ejected, percentage sli...
2023 International Conference on Science, Engineering and Business for Sustainable Development Goals (SEB-SDG)
Cattle rustling has become a threat and a major crime in Nigeria recently. To minimize this, ther... more Cattle rustling has become a threat and a major crime in Nigeria recently. To minimize this, there is a need to ensure cattle safety and provide substantial security when rearing cattle both in ranches and open fields. This necessitates the need to deploy technology to attenuate cattle rustling. This study developed and tested an animal tracking device using the Internet of Things (IoT). The developed system consists of three units that were interfaced together. These units are the GPS Tracker (made up of the microcontroller, ATtiny chips©, ATMega328©, etc.), the Mobile Application, and the Database unit. The developed animal tracker was tested and the results showed that the constructed tracker is equivalent to the standard GPS and adds more information about cattle location, breed, color, weight, etc. The developed GPS tracker is a long-time security and monitoring aid that will be used to eradicate cattle rustling in Nigeria and identify cattle and other information which enables easy identification of cattle when lost. The addition of extra features such as location history was also implemented to improve the overall user experience.
The system is combined with the microcontroller programmable technology and intelligent device sp... more The system is combined with the microcontroller programmable technology and intelligent device specification. By detecting the values of sensors it can easily find out the temperature, light, gas present in the given area. So that critical condition can be avoided and preventive measures are successfully implemented.In system zigbee is used as wireless module at both ends for transferring the data from one section to other section. This paper deals with industrial environment monitor and device control using microcontroller. In industries there is need for data monitoring and supervisory control which overcomes human intervention as well as overall efficiency and safety.Performance of the proposed system is verified and good effects are achieved in practical application.A new design method is proposed in this paper is that the multisensors are controlled using the single system.This paper presented different technologies, parameters to analyze environment.A sensor interface device i...
International Journal of Engineering Research in Africa, Mar 15, 2022
Waste wigs are often disposed of in their volume in landfills, thus constituting a nuisance to th... more Waste wigs are often disposed of in their volume in landfills, thus constituting a nuisance to the environment. Recycling these wigs in masonry bricks is a way via which they can be recycled and reused. On such premises, waste wig fiber (WWF) was recycled by incorporating it into the cement-sand-clay composite mix for masonry brick production. The challenges masonry bricks face include shrinkage and water susceptibility, hence the contributory effect of WWF on physio-hydric properties was assessed in this study. Sample preparation entailed the blending of cement, sand, clay soil, and waste wig fiber. The control mix was prepared by commixing clay with 10 % cement (by clay volume) and 20 % sand (by clay volume). Other mix proportions were reinforced with 1, 2, 3, 4, and 5 % WWF by clay volume. Prepared composites brick samples were cured for 28 and 56 days and tested for physio-hydric properties. Results revealed that WWF contributed significantly to improving hydro-resisting properties by minimizing porosity, water and moisture absorption, capillary suction, and water permeability. Furthermore, WWF contributed to dimensional stability by reducing shrinkages and weight loss. Hydration time impacts significantly in reducing apparent porosity, water permeability coefficient, moisture and water absorption, capillary suction coefficient; increasing apparent density, weight loss, linear, and volumetric shrinkage. Prolonged time in water ensued higher water absorption. The general outcome depicts that WWF showed promising performance in bricks developed in enhancing water and moisture susceptibility resistance and promoting mass and dimensional stability; hence, it can be employed in reinforcing cement adobe bricks.
SSRN Electronic Journal
Food security is the aspiration of every nation. To achieve this, particularly in Developing Coun... more Food security is the aspiration of every nation. To achieve this, particularly in Developing Countries, there is a need to reduce wastage by storing staple foods grains beyond their production seasons. Longer storage requires human presence, monitoring and control of the storage environment which may be laborious, demanding and sometimes outrightly unsafe. Therefore, the needs to employ automation and artificial intelligence become necessary to control this storage environment. This study developed an automated, intelligent silo bin that controls the storage environment of the system for the small-scale rural farmers, of which over 70% of their population still depend on agriculture, using Internet of Things (IoT). The developed system consists of three units interfaced together. These units are the pro-type 2-ton (2,000 kg) silo structure, the embedded system (made up of the microcontroller, sensors and relays). The system is integrated to an IoT system (made up of mobile application (BLYNK), Wi-Fi module and ultrasonic atomizer) and the air blowing system (consisting of blower fan and heater). The developed smart system was tested and the test run results showed that it successfully monitors and controls storage air temperature, humidity, air pressure, grain moisture, insect infestation and CO 2 levels, the key parameters for long term storability of grains. The coding process could be set to suit different grains and storage conditions required for their effective storage. Although the silo bin structure used for testing was for a particular prototype , it can be geometrically scaled for many silo structures.
Mathematical Modelling of Engineering Problems