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Wireless sensor network (WSN) is commonly used for localization applications. Through sniffing receive signal strength indicator (RSSI) in WSN system, localization and connection to access point highest RSSI can be done automatically. In this paper, we propose Raspberry-Pi (RasPi), based best access point selection method utilizing RSSI metric. The RasPi brings the advantages of a personal computer...
The travel time estimation is one of traffic management system which provide time taken from one point to another point. Travel time estimation system consists of an embedded platform with image sensor for detecting and tracking the vehicle. Due to limited resources of embedded board, it makes challenging to measure the travel time especially for fast moving vehicle. Capturing system required a high...
Travel time is important information for traffic management system, which can help people to plan their travel schedule and improve their work efficiency. The development of smart travel time information system for multiple moving vehicle detection and tracking on highway composed of an embedded Linux platform and an image sensor. A low cost system with high resources is needed to capture an image...
As traffic continues to grow up, the issue regarding the road accident also growing quickly. The accident occurred due to the high speed of vehicles on the road. This paper proposed a vehicle speed detection and travel time estimation system using Raspberry Pi to estimate the speed of passing vehicles through this system. The system is designed to detect the moving vehicles and calculate its velocity...
A circular polarization (CP) textile antenna is designed for Global Positioning System (GPS) application. The truncated rectangular patch antenna is has a full ground plane from Shieldit Super and felt fabric as a substrate. The proposed antenna operates at 1.575 GHz with a good bandwidth from 1.540 to 1.625 GHz. The optimized chamfer has been made at two edges of a rectangular patch in order to produce...
A novel single feed of the truncated edge circular polarized array antenna for 2.4 GHz applications with high gain is analyzed and proposed. The presented circular polarized antenna is comprised of four patches as its radiating elements and fed by a single coaxial connector at the ground layer. Dimension‐wise, the proposed antenna is designed with compact size of 56 × 69 × 1.6 mm3. It is notified...
This paper investigates the effect of isolation loss (ISO) towards the beam steering capability of a parasitic patch array antenna. Parasitic patch antenna is mainly used to steer the main beam towards a desired direction and suppress the signal in unwanted directions. In such a scenario, the ability to steer the beam with reduced side lobe level is considered important to enhance the signal reception...
E-learning is a new educational concept by using the Internet technology. It delivers the digital content and provides a learner-oriented environment for the teachers and students. The Lecture Recording system is one of the devices that are widely used for E-Learning. However, the existing Lecture Recording system needs to be installed on a PC or Notebook. In this paper, a new design for lecture recording...
A novel design of reconfigurable antenna for GPS application is presented in this research. This project proposed a circular disc-shape antenna with beam steering radiation pattern. The antenna is designed by a coaxial probe technique which allow current flow to the center of the antenna. Then, the incident distributed to the surrounding fan ring parasitic via bridges. Three PIN diode switches have...
A switchable parasitic patch antenna that has a capability to operate in four beams of operation is proposed. The presented antenna is developed with a single main radiator at the center of the antenna structure surrounded by four parasitic elements. It has a full ground plane functioned as a reflector that helps to boost the gain up to 8dBi. Antenna reconfiguration is achieved with the implementation...
This paper presents a novel dual-polarization textile antenna (DPTA) for Global Positioning System (GPS) applications. In this design, four sector radiating elements are centrally-fed by a coaxial probe. A novel antenna structure is successfully achieved by integrating electronic components into a wearable textile antenna. Silver loaded epoxy adhesive is used in embedding four PIN diode switches on...
This paper presents a linearly polarized beam reconfigurable microstrip parasitic antenna deployed with rectangular parasitic elements. In this design, three variation of beam steering is controlled adopting two RF switches (currently copper pins for proof of concept). The effects of some parameter changes such as the spacing between parasitic element and center element and size of the parasitic element...
This paper investigates the performance of a circular patch antenna deployed with a parasitic ring and compares the performances with a conventional circular patch antenna in terms of gain, return loss, and radiation pattern. The antenna is fed by a coaxial probe and provided with a full ground plane. Compared with previous gain enhancement methods, the proposed metal ring resonator offers reduced...
A beam-streering textile antenna for wireless body area network (WBAN) applications is proposed and investigated in this work. This proposed antenna is centrally-fed by a coaxial probe before currents are distributed to the four circular radiating elements. This novel structure successfully integrated the reconfigurable feature into a wearable textile antenna using electronic components. Four RF switches...
Conductive E-textile analysis of a rectangular antenna with H-slot is proposed. This research focuses on the optimal value of gain and return loss (S11) with 3 types of E-textile as radiating elements. The H-slot functions are tuning and capable to suppress the back lobe direction. The proposed antenna design used 3 type of E-textile (Zelt, Pure Copper Taffeta Fabric and Shieldit Super). All of the...
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