Category Archives: International Journal of Engineering and Emerging Scientific Discovery, volume 6, number 3, 2021

Bluetooth Enabled Home Automation Control System using Android Application

Philip-Kpae, F. O. ¹ Akaneme, S.A.² Oodee, B. G.³, Kpegara, S. N.⁴, Igboka, M.⁵

^{1, 4, 5.} Department of Electrical/Electronic, KenuleSaro-Wiwa Polytechnic, Bori, Rivers State,

²Department of Electrical/Electronic Engineering, ChukwuemekaOdumegwuOjukwu University, Uli,

³New Technology Center (NTC), KenuleSaro-Wiwa Polytechnic, Bori, Rivers State,

E-mail:-philipkpae1@gmail.com¹, silas.akaneme@gmail.com²oodeebarifaa@gmail.com³, sankpe@gmail.com⁴, buchigallant@gmail.com⁵

Geological Investigation of Chalcopyrite Occurrences in Gombe Inlier, Gongola Basin Upper Benue Trough Nigeria

¹Rabiu, M.,¹Adamu, K. G.^,2Abatcha, A. B.&¹Sulaiman, A

¹Department of Geology, Gombe State University Nigeria

²Ashaka Quarry, Ashaka Cement Plc Gombe State Nigeria

Email: marrah201354@gsu.edu.ng

Abstract: This article clearly shows the implementation of a Bluetooth Home Automation Control System using an android application for remote switching of electrical appliances such as lighting, fan, garage, door motor, power sockets, water-pump motor or any other load in homes, offices or industries. The android application in the mobile phone acts as a modem for the control of home appliances.The system used an Arduinomicrocontroller for signal processing, a Bluetooth module for receiving data from android smart phone with a Bluetooth terminal/switching application and relays as its major switching component. The use of android mobile phones is simple and on the increase, the researcher deem it necessary to take advantage of its Bluetooth technology. By using an android mobile phone with the necessary application, we can switch ON/OFF home appliances within the Bluetooth signal range of approximately 100m conveniently without stress or risk of electric shock. The Bluetooth Home Automation Control System as presented in this paper is most suitable for everyone especially the elderly and disabled as it ease the stress of to and from movement for manual control of appliances within the home environment. Proper authentication/protection is implemented in this project to prevent unauthorized users from accessing the appliances at home.

Keywords:Arduino Microcontroller, Home Automation Control System, Bluetooth module, Android Mobile Phone

INTRODUCTION We are living in a digital era where wireless technology is becoming popular and very important for human comfort, especially in the areas of Telecommunication, Robotics, Instrumentation and Controls,

The Dynamics of Cost of Construction Projects in Nigeria

Ojo¹, Solomon Michael, Adeniji², Wusamotu Alao, Yusuf³ Shakirudeen Olawale,

¹Department of Quantity Surveying, Moshood Abiola Polytechnic Ojere, Abeokuta,

²Department of Building, Moshood Abiola Polytechnic Ojere, Abeokuta, Ogun State,  

³Department of Architecture, Moshood Abiola Polytechnic Ojere, Abeokuta, Ogun State,

Emails: goodsolex1@yahoo.com  

Abstract: The persistent escalation of cost of both building and infrastructural projects in Nigeria is alarming. In other to improve upon the existing scenario, this study investigated and evaluated determinants of construction cost in Nigeria. The objectives of the study include: Comparative cost analysis of construction projects in Nigeria with that of some African countries, evaluation of construction cost matrix and suggestion to improve on existing scenario. Data obtained through stratified probabilistic sampling technique from 50 Nigerian Quantity Surveyors through structured questionnaire were analyzed quantitatively and the findings of the study revealed that high cost of construction materials, inflation, monopolistic market for construction materials, deliberate inflation of contract sum and kick back syndrome are major determinants of cost of construction in Nigeria. The study concluded that to curb this menace, measures outlined in the study must be implemented.

Keyword: Construction Cost, Dynamics of Cost, Nigeria, Issues, Quantity Surveyors, Ways forward