Mohd Razali Md Tomari

Investigation on Various Voltage Controllers for 3 Phase Rectifier Using Arduino as a Low Cost Microcontroller

This paper focuses on investigation of various voltage controllers which are the Proportional Integration Derivative (PID) control and P-Resonant control in order to observe the efficiency of the low cost microcontroller such as Arduino for the gating signals generation. Both of the controllers have been selected due to the availabality of the block diagrams that can be build in the MATLAB. The MATLAB-Simulink block will be used as the interface between the design controller to the Arduino board before downloaded into Arduino. The results show, the Arduino is able to operate from various controllers but it gives better result when the P-Resonant controller has been used.

Quantitative Analysis of Hand Movement in Badminton

This paper focuses on the development of a mobile measurement device to evaluate the bending and flexion of a Badminton player’s hand. Badminton can be classified as a fast racket based sports. A human eyes alone is not capable of capturing all these movements. The usage of high processing optometric system is expensive and large in size. Thus, this paper proposes development of wearable measurement device to analyse badminton player’s movements. This project involves the designing of a wearable sensor system that measure the players grasping action. A number of flex sensors is attached to a glove to acquire readings from the movement of the players hand and fingers. Experiments were conducted to determine the feasibility of each sensor towards the design of the new measurement device. The experiment results exhibit the capabilities of the bend sensors to provide accurate information regarding hand and finger movement activity.

Implementation of IMU sensor for elbow movement measurement of Badminton players

This paper gives an insight on the design and development of a mobile measurement device to measure the elbow joint movement of a Badminton player. Badminton is one of the fastest racket-based sport. Since a human eye alone is not capable of capturing all these fast movements the usage of high processing optometric system became a popularity but the downside is these systems are expensive and large in size. The proposed solution is to develop a reasonably cheap and small size mobile measurement device utilizing the miniature sensor technology which can perform the task capturing the badminton players movements just as an optometric system will do. This proposed device will use the MPU6050 IMU unit to measure the rotational angle of the elbow joint where the data fusion between the accelerometer and gyro will be performed by the inboard MPU6050 DMP. Experiments were conducted to verify the reliability and feasibility of IMU sensor towards the design of this proposed measurement device. The experiments result shows promising results of the usability of the IMU sensor in measuring the rotational angle of the players elbow joint.

Enhancing Wheelchair’s Control Operation of a Severe Impairment User

Users with severe motor ability are unable to control their wheelchair using standard joystick and hence an alternative control input is preferred. However, using such an input, undoubtedly the navigation burden for the user is significantly increased. In this paper a method on how to reduce such a burden with the help of smart navigation platform is proposed. Initially, user information is inferred using an IMU sensor and a bite-like switch. Then information from the environment is obtained using combination of laser and Kinect sensors. Eventually, both information from the environment and the user is analyzed to decide the final control operation that according to the user intention, safe and comfortable to the people in the surrounding. Experimental results demonstrate the feasibility of the proposed approach.

Wearable flex sensor system for multiple badminton player grip identification

This paper focuses on the development of a wearable sensor system to identify the different types of badminton grip that is used by a player during training. Badminton movements and strokes are fast and dynamic, where most of the involved movement are difficult to identify with the naked eye. Also, the usage of high processing optometric motion capture system is expensive and causes computational burden. Therefore, this paper suggests the development of a sensorized glove using flex sensor to measure a badminton player’s finger flexion angle. The proposed Hand Monitoring Module (HMM) is connected to a personal computer through Bluetooth to enable wireless data transmission. The usability and feasibility of the HMM to identify different grip types were examined through a series of experiments, where the system exhibited 70% detection ability for the five different grip type. The outcome plays a major role in training players to use the proper grips for a badminton stroke to achieve a more powerful and accurate stroke execution.

Application of Robust Control on Arduino Microcontroller Testing in Power Electronics Converters

This paper presents the capability of Arduino for responding to the robust controller which has been applied to the 3 phase rectifier and 3 phase inverter. The interface between the converters and the Arduino has been established by using MATLAB-Simulink environment. This is the fastest interface due the Arduino library that is available in the MATLAB which can be used before downloading the program to the board. Two types of controllers have been tested which are, P-Resonant and Fuzzy-PI controller. The voltage or current feedback mechanism also has been applied between the converters with the Arduino input port in order for responding to the design controller for signal generating pattern. At the end, it shows that, the Arduino is capable to receive the signals from the converters, process the signals in the board and generating the signal out for controlling the converters.