Conference Publications

Times have certainly changed over the past few decades, now it seems that technology is getting more compact and efficient. The modern outdoor enthusiast such as hikers, climbers has a problem regarding the lack of power supply to power up electronics when they go for adventure activities. In order to solve this problem, this paper design and develop DC/DC buck converter system to drop down the voltage from the solar photovoltaic (PV) system from 12VDC into 5VDC. This paper is first to start up with design and simulation circuit using simulation to test outcome of this paper in the range of 5VDC & 1.0A and 5VDC & 0.5A. A battery storage is needed to feed electricity independent and battery management of the battery is needed to improve the performance of battery life. This can be done by adding a charge controller unit. The outcome of this paper allows the battery to be charged using the solar panel and at the same time can produce multiple outputs for low voltages used. The software simulation has been done to shows this system produces two different output and the hardware will be developed based on the software results. Software and hardware result, both will be compared and analysed.

Publication

Wind characterization by three blade savonius wind turbine using IoT

(IOP Publishing, 2020)

Liew Hui Fang

;

Abd R Rosemizi

;

Muhammad Zaid Aihsan

;

Muzamir Isa

;

Baharuddin Ismail

Fuel has become one of the vital energy in our life and reserves on the earth is lessened years by years. However, still wind that is renewable resource which is clean energy that can replaced a fuel. In this paper, novel idea to monitor the environmental condition and working conditions are characterized by using the small three blade Savonius wind turbines with Internet of Things (IoT) is proposed. Therefore, in terms of characterization, controlling and monitoring the status of wind turbine systems are recommended from anywhere in the world using Internet of Things (IoT) technology. In all repair work, this system is declared with IoT application and ESP 8266 to monitor, capture and diagnose problems in wind turbine. This allows the user to have a remote control mechanism remotely via secure internet web connection. This system helps users control energy sources, manually and remotely using smartphones or personal computers. This work is related to the transmission of data between two units in a timely and fast time without any disturbance. Wind turbine performance has a number of factors which determine its reliability. Next, a system for analyzing the data resulting from the rotation of the wind turbine from a distance is needed so that the study can take place at any time. The parameters that been measured using ESP8266 is voltage, current, power and wind speed. When turbine generate electric, it will display the output by thinkspeak. Various challenges, material of wind turbine and methods for condition monitoring were discussed and the results were analyzed with statistical measures and compared with its standard values.

Publication

Develop portable blood analyzer based on temperature and quantity level

(IOP Publishing, 2020)

Muhammad Amar Farhan Sukemi

;

Wan Azani Wan Mustafa

;

Muhammad Zaid Aihsan

;

Zol Bahri Razali

;

Syed Akhmal Syed Jamalil

;

Syahrul Affandi Saidi

This technical paper presents a developing portable blood analyzer for monitoring of human blood sample. Perseverance of blood sample in hospitals is important in order to obtain a great quality of blood and therefore it able to determining the human type of disease. This is a life-threatening early step in most medical applications fields such as diagnosis, treatment and medical research. The proposed system consists of three main parts. In the first part, the use of convenient and handy device to deal with the problem of incorrect temperature value and inadequate quantity of blood sample. Most of previous human hospitality services show a fail to handle and properly in time to take human blood sample for diagnosis in a schedule time frame such as not punctual in taking blood sample from a patient in three different times in one day. The consequences is that these blood sample are not in perfect quality for a correct estimation of the human disease towards a pathology unit. The proposed method is a device that uses infrared temperature system and non-contact blood sample quantity detection. In the second part is by combining those two approaches to single programmable electronic modules that are used to minimize the size of the portable device in the resulting techniques to improve the functionality. The third part is accomplished by using a modern technique to produce an interface to provide the value of human blood sample and shows it on display for monitoring purposes. The programmable coding has been test in several different types of sensors and physical part. The experimental results show that this method able to integrate both requirement of human blood sample perseverance with a contactless method towards a blood tube, providing the output value of quality characteristic in a display and making it well-suited for a convenient practical application system. The experimental results in real time applications shows the effectiveness, reliable and efficiency in the proposed approach which able to almost accurately detect and monitor the human blood sample with the ability to detect different types of people gender and blood type. The proposed coding system can be executed at more precise time scheduling which is better than real life human monitoring system.

Publication

Comparative analysis between chaos theory method and power system for WPT energy security application

(AIP Publishing, 2020)

N. H. Hussin

;

M. M. Azizan

;

Rafikha Aliana A Raof

This paper reviews the techniques used in Wireless power transfer (WPT). WPT is one of the most useful ways to transfer power. Based on power transfer distances, the WPT system can be divided into three categories, namely, near medium, and far fields. Inductive coupling and capacitive coupling contactless techniques are used in the near-field WPT magnetic resonant coupling technique is used in the medium-field WPT. Electromagnetic radiation is used in the far-field WPT. In addition, energy encryption plays a major role in ensuring that power is transferred to the true receiver. Therefore, this paper reviews the energy encryption techniques in WPT system. A comparison between different technique shows that the distance, efficiency, and number of receivers are the main factors in selecting the suitable energy encryption technique.