Elmer Magsino

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• Doctor of Philosophy
• Assistant Professor at University of the Fraser Valley

With the proliferation of vehicular mobility traces because of inexpensive on-board sensors and smartphones, utilizing them to further understand road movements have become easily accessible. These huge numbers of vehicular traces can be utilized to determine where to enhance road infrastructures such as the deployment of electric vehicle (EV) char...

In this study, we implemented a parking occupancy/vacancy detection system (POVD) in a scaled-down model of a parking system for commercial centers by employing multiple WiFi access points. By exploiting the presence of WiFi routers installed in a commercial establishment, the WiFi’s received signal strength indicator (RSSI) signals were collected...

In this work, we propose a Game Theory-based pricing solution to the ridesharing problem of taxi commuters that addresses the optimal selection of their travel companionship and effectively minimizes their cost. Two stable matching techniques are proposed in this study, namely: First-Come, First-Served (FCFS) and Best Time Sharing (BT). FCFS discov...

In this study, we evaluate the Effective Regions of Movement (ERM) method of irregularly partitioning a location map into various homogeneous clusters. To form ERMs, the map under study is uniformly partitioned into \(N \times N\) grids and their corresponding target spatiotemporal stable network characteristics, e.g., vehicular capacity, density,...

This paper presents an experimental study on the suitability of Long Range Wide Area Network (LoRaWAN) in the communication and monitoring of vehicles in Metropolitan Manila, Philippines. The system has two components—the sensor nodes and the gateway. The sensor nodes send packets that contain the location of the vehicle and the received signal str...

In this study, we have implemented braking and acceleration features for driver assistance in a car-following intelligent vehicle to minimize unnecessary braking and provide appropriate acceleration inputs in order to alleviate traffic buildups. Our system employs a fuzzy logic controller to process speed, obtained from an installed on-board diagno...

In this study, we uniformly partition an empirical vehicular network map and determine the locations where electric vehicle (EV) charging stations will be deployed by implementing the particle swarm optimization (PSO) algorithm. The optimal placements utilize the spatiotemporal taxi movements representing energy demands. From each partition, the ta...

span lang="EN-US">Traffic congestion is a constant problem for cities worldwide. The human driving inefficiency and poor urban planning and development contribute to traffic buildup and travel discomfort. An example of human inefficiency is the phantom traffic jam, which is caused by unnecessary braking, causing traffic to slow down, and eventually...

Sharing up-to-date environment information collected by intelligent connected vehicles is critical in achieving travel comfort, convenience, and safety in vehicular networks. Individually collected information should be made available to other vehicular nodes, adjacent or distant, to achieve an informed and well-managed vehicular traffic. The cover...

All smart parking management systems (SPMS) have incorporated the dynamic pricing into its features and capabilities. The collection of parking fees on a corresponding spot has been dependent on either its time- or space-value, with most SPMS utilizing temporal-based parking fee collection. However, little to no study has been conducted to assess o...

When goods and commodities are transported from source to market, producers/sellers utilize highways and expressways to reduce travel time and avoid damage to perishable goods. One unavoidable experience is when these people reach the tollgate to pay toll fees for using this convenience, especially during peak hours. In this study, the five factors...

It is apparent that the taxi industry has grown and developed over the years. In addition to that, it will presumably continue to grow as time goes on due to the increasing popularity of taxi-hailing applications. However, taxi origin and destination (O-D) locations are not clearly established since taxis are very flexible in terms of where they ca...

With the advancement of wireless technology, Wireless Body Sensor Networks, such as Electrocardiograms (ECGs) will serve as state-of-the-art method for electronic-healthcare systems and applications. Like other digital communications, however, ECGs highlight power consumption as the main design constraint and bottleneck as it affects device lifespa...

With the increasing demand for taxis during peak hours, adding more vehicles is not always the optimal solution since this will also contribute to the increasing traffic congestion, noise, and air pollution. In this study, we propose a neural network-based ridesharing policy that will utilize the available seats in an occupied taxi to accommodate o...

This paper presents a hybrid encryption and decryption algorithm, which combines the concept of Caesar Cipher and Vigenere Cipher algorithms. This was done by comparing the proposed design with some of the well-known ciphers such as Hill Cipher, Caesar Cipher and Vigenere Cipher through MATLAB simulations. Parameters such as letter frequency and gr...

With the future full shift to cashless and contactless toll fee collection in the Philippines, installation of radio frequency identification (RFID) readers at toll plazas and tags on all vehicles is the most practicable solution. The Department of Transportation recently implemented this initiative to help minimize the transmission of COVID-19. RF...

The concept of vehicular networks utilizes vehicular nodes and roadside units to exchange data to achieve travel comfort and convenience. However, as the number of vehicles on the road increases exponentially, the data dissemination becomes inefficient and lossy due to communication factors, one of which is the availability of too much sources of i...

In learning and understanding liear control systems, DC motors can be utilized to display the various performance of a second-order system, since they can be bought off-the-shelf easily. DC motors are also used extensively in many applications, such as placing a blade on the motor shaft easily creates an electric fan. DC motors can also run in a cl...

Through connecting intelligent vehicles as well as the roadside infrastructure, the perception range of vehicles can be significantly extended, and hidden objects at blind spots can be efficiently detected and avoided. To realize this, accurate road map data must be downloaded in real time to these intelligent vehicles for navigation and localizati...

Through connecting intelligent vehicles as well as the roadside infrastructure, the perception range of vehicles can be significantly extended, and hidden objects at blind spots can be efficiently detected and avoided. To realize this, accurate road map data must be downloaded in real time to these intelligent vehicles for navigation and localizati...

In this study, an IoT-based smart orchard monitoring is proposed to gather and transmit environment data from a sensor node to a central node for necessary and relevant actuation in order to have good produce at the soonest amount of time. Wireless sensor motes are deployed based on a simple linear pattern across a square farm and only require the...

Vehicular ad-hoc networks (VANETs) play an important role in enabling ubiquitous communications and connectivity among vehicles in Intelligent Transportation Systems (ITS). Various messages can be transmitted in a VANET to improve road safety and furnish multiple types of application services. Therefore, the evaluation of VANET performance and its...

Dishwashers are starting to become a common sight in households. Due to this fact, there will also be a rise in the demand for soap for dishwashing. An increase in the demand for soap will therefore increase the volume of wastewater produced in each of the current households. Using dishwashing liquid also poses environmental threat. This paper addr...

In this work, we present the design and implementation of a three-legged robot that employs hopping as a means of locomotion while maintaining stability throughout the motion process. The developed three-legged hopping robot follows a tripod structure to house all the electronics and actuators. It is also radio-controlled, thereby, allowing flexibi...

As more intelligent vehicles will ply the roads in the near future, a rapid increase of sensed environment data is anticipated. Information based on these acquired data needs to be extracted and shared in the most efficient way. To realize this, roadside units (RSUs) acting as hotspots and fog computing nodes should work together with vehicles in v...

In this paper, a starter pack of 10 Kilobots are used to provide an initial study and implementation of collective behaviors that can be used in military operations, disaster response, and intelligent transportation systems. Basic target-surrounding and search swarm algorithms are demonstrated. For all these behaviors, there are three basic roles,...

In this paper, a fuzzy logic controller determines the turning ON or OFF of a power supply in a scalable n-parallel power supply configuration. Each power supply is modeled using differential equations and only differs in the values of its parasitic resistances. This is done in a MATLAB/Simulink environment. A fuzzy logic controller accepts the pow...

This research study employs the use of a quadrotor for improving the efficiency and safety of civil engineers in the inspection of concrete bridge building columns for probable cracks. At an initial scanning height, the quadrotor hovers vertically at constant height increments and captures the structure image. It communicates, via Wi-Fi, to an andr...

This research presents a redundant flight recovery system during a motor failure in an octocopter platform. This proposed recovery system exploits the property that the octocopter can be derived by combining two quadrotor systems. During motor failure, the octocopter switches to a stable quadrotor flight configuration while immediately landing the...

This paper uses Matlab/Simulink to demonstrate the vertical take-off and landing control of a rotorcraft, which is assumed to have DC motors instead of the conventional BLDC motors. The rotorcraft system is modeled by its DC motors instead of its nonlinear dynamic model. A PI controller compensates the DC to achieve its desired motor speed. The DC...

On a highway setup, a vehicle will most probably use a tollgate server that has the shortest queue thinking that it is the fastest exit. In this paper, an intelligent highway tollgate queue selector using fuzzy logic is proposed and simulated in Matlab SimEvents. Its aim is to automatically select the most appropriate tollgate server for a vehicle...

This paper presents the dynamic modeling of a two-input Zeta converter topology using State-space averaging (SSA) technique. The modeling leads to a small-signal linear dynamic model of the multiple-input converter (MIC), from which the transfer functions used for feedback control design can be determined. To verify the accuracy of the obtained mod...

This paper presents a modified open-source Red Green Blue – Depth Simultaneous Localization and Mapping (RGB-D SLAM) that addresses the problem of multi-robot SLAM in unmanned aerial vehicles (UAVs). The modified RGB-D SLAM system was tested with quadrotors which were equipped with RGB-D cameras as the only sensor for solving the SLAM problem. Two...

This research presents a control structure that utilizes the speed and torque control of the brushless DC motors (BLDC) within the attitude altitude loops in order to attain flight stability and maneuverability of the quadrotor Quadrotor platform. Classical controllers were used drive each BLDC motor to compensate for the errors in altitude and att...

This paper implements a visual surveying control in providing motion control to an autonomous underwater vehicle (AUV). The AUV, which has a dimension of 35.5 cm by 16.5 cm, has five motors that are used to provide the necessary motions. Three motors are used for vertical movements while the remaining two are used for the AUV's horizontal movements...

Research in the Unmanned Aerial Vehicle (UAV) has grown rapidly in the past two decades, especially research focusing on quadrotor UAV. Quadrotors are known to be manoeuvrable and have been found to handle many different types of missions, thus giving the quadrotor an advantage in most research works. In this paper, the study focuses on the payload...

This paper describes design of quadrotor frame using aluminum casting type A356.0-T6.0-T6. Although many paper already publish about quadrotor Unmanned Aerial Vehicles (UAVs), design quadrotor using aluminum casting still rarely. Frame that available in the market have lack in the price and assembly. Casting aluminum have component less compare wit...

The development of power supplies has evolved from using linear or series regulator to switch mode power supplies (SMPS). Nowadays, SMPS have employed the use of digital controllers such as microcontrollers and digital signal processors (DSP's) to provide compensation, housekeeping, fan control, communication, etc. The main advantages of using a di...

Most quadrotor flight controllers make use of an attitude control loop, which is responsible for stabilizing the flight of the vehicle by directly driving the four motors via the electronic speed controllers (ESCs). Such a control loop loses its effectiveness when the motors and ESCs are not well matched resulting in variation of the control perfor...

This paper implements a Matlab/Simulink vertical takeoff and landing capabilities of a quadrotor by modeling and controlling its four DC motors instead of the normal nonlinear dynamic system modeling. The DC motors are classically compensated using a PI controller and accepts the desired motor speed as its input. Each DC shunt motor has a 12VDC sup...

This paper describes the design of a fuzzy logic controller (FLC) of a boost converter used to charge a battery. The FLC functions to maintain the output of the converter at a constant level regardless of variations in the input voltage. The output of the FLC was also used as input to a controller which functions to prevent overcharging and over di...

One of the predominant applications of the theories and principles of robotics is in industrial automation particularly in automotive manufacturing. This paper explores some miniprojects related to industrial automation that will help students and even robotics enthusiasts understand the kinematics of each manipulator. These projects can be as si...

In this paper, converter utilization equalization under various dynamic loading conditions experienced by parallel buck converters were observed. Equalization of converter utilization is ensured by using fuzzy logic control while output voltage regulation and current sharing between converters is maintained by employing sliding mode control. This r...

In this paper, fuzzy logic was used to provide the information on the probability of turning ON of four parallel converters using the converter utilization parameter and the input voltage perturbation. Each converter is designed having equal values of inductances and capacitances but with different parasitic resistances and was modelled using...

In this paper, a power monitoring system intended for verifying backup lead-acid batteries parameters such as voltage level, battery temperature and charge capacity is developed. Such system is capable of doing the following: 1) switching between available bad and good conditioned lead-acid batteries without interrupting power service, 2) aut...

An elementary and simplified control of four digital parallel-connected buck converters was simulated in MATLAB/Simulink. These parallel converters, having the same values of inductances and capacitances but different parasitic resistances, were observed under various conditions of current sharing load and on the total number of active converters....

A variety of applications concerning communication signal processing involves recovering unobserved signals or “sources” from several observed mixtures, and “cocktail party effect” is a good paradigm related to this process. Given a set of linearly superimposed acoustic signals without knowledge about the sources makes Blind Source Separation (BSS)...

The age of modern innovations gives rise to the application of technology to imitate certain tasks a person could perform, and one of which is the ability to stand and step then eventually walk using two limbs. As part of this development, the human stance and single stride will be implemented on the autonomous robot. FAITH Tin Man is a combination...

This paper discusses the speed and torque control of a shunt DC motor through MATLAB Simulink simulations. The DC shunt motor is 120Vdc with rated speed of 1800 revolutions per minute. Blocks pertinent to the control of the DC motor are modeled using basic blocks found in the Simulink library.