scholarly journals Perancangan Kontroler Pointing Antena Yagi pada Frekuensi Radio Berbasis Mikrokontroler

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Ronald Alexander Yosefhan ◽  
Susilo Wibowo
Keyword(s):  
User Interface ◽  
Error Rate ◽  
Design Concept ◽  
Antenna Design ◽  
Servo Motor ◽  
Spreading Factor ◽  
Final Project ◽  
Yagi Antenna ◽  
Communication Module ◽  
Main Components

Abstrak--Pada sistem komunikasi nirkabel yang menggunakan antena, arah antena pusat memegang peranan penting. Hal ini dikarenakan penyimpangan arah antena mempengaruhi kinerja komunikasi. Oleh karena itu, dibutuhkan sebuah proses pointing untuk mendapatkan arah antena yang lebih baik. Pada Tugas Akhir ini penulis merancang kontroler pointing antena untuk memudahkan proses pointing dan menguji ketepatan pointing dengan parameter yang dapat diukur. Perancangan tersebut diimplementasikan di gedung Fakultas Teknik Universitas Surabaya. Perancangan tersebut mampu melakukan pointing ke arah target pointing berdasarkan nilai masukkan koordinat geografis dan nilai tekanan udara yang dikonversi menjadi nilai azimut dan elevasi. Perancangan alat pointing ini terdiri dari empat komponen utama, yakni modul komunikasi, desain antena, motor servo, dan mikrokontroler. Fokus Tugas Akhir ini adalah merancang alat pointing berdasarkan keempat komponen utama serta menguji ketepatan alat pointing berdasarkan parameter gerak kontroler dan sinyal daya terima. Pengerjaan dibagi menjadi dua belas tahap: konsep desain alat pointing keseluruhan, perancangan modul komunikasi, perancangan motor servo, desain rangkaian mikrokontroler, konsep komunikasi modul komunikasi, konsep desain antena Yagi, penggabungan antena Yagi dengan alat pointing, kalibrasi motor servo setelah diberi beban alat pointing, desain user interface, perancangan target pointing, perhitungan waktu pemakaian maksimum baterai, dan desain akhir alat pointing dan target pointing. Pengujian meliputi uji antena, uji gerak kontroler, uji sinyal daya terima, uji user interface, dan uji transceiver. Hasil menunjukkan parameter antena yang didapatkan berupa SWR 1.33, kuat sinyal ±12 dB, dan beamwidth ±62°. Kontroler azimut memiliki error rate gerak 1°. Nilai sinyal daya terbaik didapatkan -88 dB pada spreading factor 7 dan bandwidth 500 kHz. Uji data sensor menggunakan modul sensor BMP280 pada Tugas Akhir ini memiliki error rate sebesar ±2 °C. Kata kunci: alat pointing, RSSI, gerak kontroler, antena yagi, servo   Abstract--Wireless communication systems that use antennas, the direction of the central antenna plays an important role. This is because antenna deviations affect the communication performance. Therefore, we need a pointing process to get a better antenna direction. In this Final Project, the author designed the antenna pointing controller to facilitate the pointing process and test the accuracy of pointing with parameters that can be measured. The design was implemented at Faculty of Engineering building, Surabaya university. The design is able to do pointing in the direction of target pointing based on geographic coordinate input values and air pressure values that are converted to azimuth and elevation values. The design of this pointing tool consists of four main components, namely the communication module, antenna design, servo motor, and microcontroller. The focus of this Final Project is to design a pointing tool based on the four main components and test the accuracy of the pointing tool based on the controller motion parameters and the received power signal. Workmanship is divided into twelve stages: overall pointing tool design concept, communication module design, servo motor design, microcontroller circuit design, communication module communication concept, Yagi antenna design concept, merging of Yagi antenna with pointing tool, servo motor calibration after pointing load , user interface design, target pointing design, calculation of maximum battery usage time, and final design of pointing and target pointing tools. The tests include antenna test, controller motion test, received signal test, user interface test, and transceiver test. The results showed that the antenna parameters obtained were SWR 1.33, signal strength ± 12 dB, and beamwidth ± 62°. The azimuth controller has a motion error rate of 1°. The best power signal values obtained -88 dB at spreading factor 7 and bandwidth of 500 kHz. Sensor data test using BMP280 sensor module in this Final Project has an error rate of ± 2 °C. Keywords: pointing device, RSSI, motion controller, yagi antenna, servo

scholarly journals Inverted F Type Antenna Design for the Cattle Activity and Estrus Detection Sensor Module

2020 ◽  
Vol 11 (1) ◽  
pp. 298
Author(s):  
Youchung Chung
Keyword(s):  
Radio Frequency ◽  
Return Loss ◽  
Antenna Design ◽  
Sensor Module ◽  
Estrus Detection ◽  
Communication Module ◽  
Frequency Module ◽  
Rf Transmission ◽  
Main Station

In this paper, an inverted F type antenna (IFA) for ZigBee communication of a sensor board has been designed and optimized, and it replaces the chip antenna on an RF (Radio Frequency) module that is not performing well enough for the ZigBee communication. The sensor board detects cattle behavior and identifies the breeding (estrus) period and transmits the data to the main station by the RF (Radio Frequency) module and IFA antenna. The proposed and optimized TRx (transmitting/receiving) IFA antenna of the ZigBee communication module has a return loss of −19 dB and a gain of 1.6 dB at 2.45 GHz. The size is about 2.5 × 0.5 cm in width and vertical length, and the height is 0.55 cm. The strength of signals with the chip antenna and the IFA antenna have been measured and compared. There is about a 20 dB enhancement with the IFA antenna compared to the chip antenna. The antenna is designed and applied to the RF transmission and reception (TRx) module. This antenna and sensor module can be applied to livestock in general as well as cattle.

scholarly journals A Printed Yagi Antenna for CubeSat with Multi-Frequency Tilt Operation

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 986 ◽  
Author(s):  
Sining Liu ◽  
Raad Raad ◽  
Panagiotis Ioannis Theoharis ◽  
Faisel Em Tubbal
Keyword(s):  
High Gain ◽  
Antenna Design ◽  
Radiation Patterns ◽  
Printed Antenna ◽  
General Theme ◽  
Yagi Antenna ◽  
L Band ◽  
Functional States

In this paper, a printed Yagi antenna with an integrated balun is proposed for CubeSat communications. The printed antenna is mechanically adjustable to realize three functional states at different operating frequencies in the L-band and S-band respectively. Three different angle deployments are proposed at 10°, 50° and 90°, so that the antenna operates at three different operating frequencies, namely 1.3 GHz (L-band), 2.4 GHz (S-band) and 3 GHz (S-band). The measured results of the fabricated antenna are well matched with the simulation, having frequencies of 2.82–3.07 GHz, 1.3–1.4 GHz and 2.38–2.57 GHz, with similar radiation patterns. The measured gain of the antenna is 8.167 dBi at 2.4 GHz, 5.278 dBi at 1.3 GHz and 6.120 dBi at 3 GHz. Keeping within the general theme of cheap off the shelf components for CubeSats, this antenna design allows the CubeSat designers to choose from three popular frequencies, through a simple angle configuration. The main contribution of this work lies with the reconfigurable frequency, relatively high gain and simplicity of design.

Yagi antenna design

1976 ◽  
Author(s):  
Peter P Viezbicke
Keyword(s):  
Antenna Design ◽  
Yagi Antenna

scholarly journals A Software Tool for Assisting Experimentation in Dynamic Environments

2015 ◽  
Vol 2015 ◽  
pp. 1-12
Author(s):  
Pavel Novoa-Hernández ◽  
Carlos Cruz Corona ◽  
David A. Pelta
Keyword(s):  
Statistical Analysis ◽  
User Interface ◽  
Graphical User Interface ◽  
Optimization Problems ◽  
Software Tool ◽  
Dynamic Environments ◽  
Experiment Management ◽  
And Performance ◽  
Main Components

In real world, many optimization problems are dynamic, which means that their model elements vary with time. These problems have received increasing attention over time, especially from the viewpoint of metaheuristics methods. In this context, experimentation is a crucial task because of the stochastic nature of both algorithms and problems. Currently, there are several technologies whose methods, problems, and performance measures can be implemented. However, in most of them, certain features that make the experimentation process easy are not present. Examples of such features are the statistical analysis of the results and a graphical user interface (GUI) that allows an easy management of the experimentation process. Bearing in mind these limitations, in the present work, we present DynOptLab, a software tool for experimental analysis in dynamic environments. DynOptLab has two main components: (1) an object-oriented framework to facilitate the implementation of new proposals and (2) a graphical user interface for the experiment management and the statistical analysis of the results. With the aim of verifying the benefits of DynOptLab’s main features, a typical case study on experimentation in dynamic environments was carried out.

Mechanical Design and Modelling of a Robotic Planetary Drilling System

2006 ◽  
Author(s):  
Yinghui Liu ◽  
Brian Weinberg ◽  
Constantinos Mavroidis
Keyword(s):  
Mechanical Design ◽  
Modeling And Analysis ◽  
Directional Control ◽  
Communication Module ◽  
Biological Sampling ◽  
Drilling System ◽  
Main Components ◽  
Propulsion Unit ◽  
Drilling Bit ◽  
Steering Force

Deep space drilling is necessary for appropriate chemical and biological sampling for subsurface exploration. The Robotic Planetary Drilling System (RPDS), which is currently being developed by our team, is designed to be a compact self-propelled, steerable electromechanical drilling system that can penetrate into large depths in planetary bodies. In this paper we present the detailed innovative mechanical design of the RPDS. Its main components are: a) the drill bit/cuttings bucket, b) the rotary propulsion unit including novel three 3-degree of freedom (DOF) propulsion actuators, c) the power/control module, d) the non-rotating steering unit including three 1-DOF steering actuators and e) the communication module. Three 3-DOF propulsion actuators uniformly distributed around the rotary propulsion unit impart rotating, linear motion to the drilling bit, while another three 1-DOF steering actuators provide the steering force for automatic directional control. The RPDS is propelled in the manner of a turning screw, which offers simpler kinematics structure, higher efficiency and thus, potential for miniaturization and deep drilling. The mathematical modeling and analysis of the RPDS that were conducted to evaluate its performance are also being presented in this paper.

Design and Implementation of Elevator Monitoring Terminal

2014 ◽  
Vol 926-930 ◽  
pp. 1253-1256 ◽  
Author(s):  
Shi Hong Li ◽  
Hui Pu Hu ◽  
Yan Jin
Keyword(s):  
Effective Means ◽  
Computer Software ◽  
Operating Conditions ◽  
Monitoring And Control ◽  
Special Equipment ◽  
Security Issues ◽  
Government Supervision ◽  
Communication Module ◽  
Main Components ◽  
Network Server

Concerning the security issues in the running elevator and the fact that elevator monitoring is an effective means to ensure the safe running of the elevator, and the special equipment, users, manufacturers, and government supervision departments will need to master the operating conditions of the elevator. Therefore, combining with the main components, embedded microprocessor, RF communications modules, sensors and GPRS designed the remote elevator monitoring terminal, and complete real-time acquisition of the state data of the running elevator via GPRS communication module to send data to a remote network server. Monitoring terminal cooperates with the web server, database, and host computer software, then realize the remote monitoring and control of the elevator group. Practice has proved the feasibility, effectiveness and reliability of the design of the monitoring terminal.

scholarly journals Keyless Smart Home: An application of Home Security and Automation

2018 ◽  
Vol 11 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Amirita Dewani ◽  
Pirah Memon ◽  
Veena Kumari ◽  
Anum Arain ◽  
Ayaz Jiskani ◽  
...  
Keyword(s):  
Smart Home ◽  
Automation System ◽  
Servo Motor ◽  
Daily Lives ◽  
Light Emitting ◽  
Home Security ◽  
Communication Module ◽  
Arduino Microcontroller ◽  
Home Automation System ◽  
Bluetooth Communication

The rapid and revolutionary advancement in technology has increased the demand for advanced ubiquitous mobile applications in our daily lives. Home automation system uses collective smart technology to elevate sphere of security and human living standards. Wireless Smart home systems have been prototyped by researchers to realize different applications in vast contexts. In this paper we propose a keyless smart home security system which uses Bluetooth as a communication protocol to automate door locks based on a security code and predefined user credentials. The system combines Android phone as a signal sender to dispatch the input signal from an end users side, Bluetooth communication module as signal receiver, ARDUINO microcontroller as CPU and servo motor and light emitting diodes as an output. The system integrates two modules: one of which is Arduino microcontroller which is responsible for authentication and verification of security code and allows servo motor to process the output according to the received input. The second is android Application which provides an interface to the user to set credentials and security code which is then transmitted to the Arduino microcontroller via Bluetooth technology. Since Arduino and Android are open source, hence implementation rate of the proposed system is inexpensive and feasible.

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