Wind compensation for an open field spread spectrum sound-based positioning system using a base station configuration

2014 ◽  
Vol 7 (3) ◽  
pp. 127-132 ◽  
Author(s):  
Slamet Widodo ◽  
Tomoo Shiigi ◽  
Naing Min Than ◽  
Hideo Kikuchi ◽  
Keigo Yanagida ◽  
...  
Keyword(s):  
Open Field ◽  
Spread Spectrum ◽  
Base Station ◽  
Positioning System

Temperature compensation method using base-station for spread spectrum sound-based positioning system in green house

2017 ◽  
Vol 10 (3) ◽  
pp. 233-242
Author(s):  
Tomoo Shiigi ◽  
Naoshi Kondo ◽  
Yuichi Ogawa ◽  
Tetsuhito Suzuki ◽  
Habaragamuwa Harshana
Keyword(s):  
Spread Spectrum ◽  
Temperature Compensation ◽  
Base Station ◽  
Compensation Method ◽  
Positioning System ◽  
Green House

scholarly journals Quadcopter-Based Rapid Response First-Aid Unit with Live Video Monitoring

Drones ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 37 ◽  
Author(s):  
Rizwan ◽  
Shehzad ◽  
Awais
Keyword(s):  
Global Positioning System ◽  
Tracking System ◽  
First Aid ◽  
Base Station ◽  
Rapid Response ◽  
Air Transport ◽  
Head Tracking ◽  
Positioning System ◽  
Global Positioning ◽  
Collision Avoidance System

Air transport is the fastest way to reach areas with no direct land routes for ambulances. This paper presents the development of a quadcopter-based rapid response unit in an efficient aerial aid system to eliminate the delay time for first aid supplies. The system comprises a health monitoring and calling system for a field person working in open areas and a base station with the quadcopter. In an uncertain situation, the quadcopter is deployed from the base station towards the field person for immediate help through the specified path using constant Global System for Mobile (GSM)- and Global Positioning System (GPS)-based connections. The entire operation can be monitored at the base station with a Virtual Reality (VR) head-tracking system supported by a smartphone. The camera installed on the quadcopter is synchronized with the operator’s head movement while wearing a VR head-tracking system at the base station. Moreover, an Infrared (IR)-based obstacle-evasion model is implemented separately to explain the working of the autonomous collision-avoidance system. The system was tested, which confirmed the reduction in the response time to supply aid to the desired locations.

scholarly journals PERANCANGAN ALAT PENGGERAK ANTENA MENGGUNAKAN METODE KONTROL PROPORTIONAL, INTEGRAL, DERIVATIVE (PID) UNTUK MELACAK OBJEK BERGERAK

Transmisi ◽  
2018 ◽  
Vol 20 (2) ◽  
pp. 71
Author(s):  
Bagus Bernadi Saputra ◽  
Wahyudi Wahyudi ◽  
Sudjadi Sudjadi
Keyword(s):  
Global Positioning System ◽  
Mean Absolute Error ◽  
Absolute Error ◽  
Base Station ◽  
Ground Control ◽  
Positioning System ◽  
Proportional Integral Derivative ◽  
Proportional Integral ◽  
Global Positioning ◽  
Aerial Vehicle

Base station atau Ground Control Station (GCS) umumnya menggunakan antena directional untuk dapat berkomunikasi dengan objek bergerak seperti roket dan Unmanned Aerial Vehicle (UAV). Antena directional memiliki jarak jangkau yang jauh, namun memiliki sudut pancar yang sempit. Untuk mengatasi kekurangan dari antena directional, diperlukan alat yang dapat menggerakkan antena ke arah objek bergerak secara nyata pada kisaran sudut azimut dan elevasi. Pada penelitian ini, dirancang alat penggerak antena menggunakan metode kontrol Proportional, Integral, dan Derivative (PID) untuk melacak objek bergerak berbasis Global Positioning System (GPS) dan sensor barometer. Dari hasil perancangan dengan menggunakan nilai parameter PID yang digunakan pada sudut elevasi (Kp=0,03, Ti=150, dan Td=0,22) menghasilkan plant yang mampu mencapai setpoint (74o) dalam waktu 2 detik. Parameter PID yang digunakan pada sudut azimut (Kp=3,5, Ti=100, dan Td=0,09) menghasilkan plant yang mampu mencapai setpoint (180o) dalam waktu 1,1 detik. Dari hasil pengujian, diketahui antena dapat mengikuti objek bergerak (drone) dengan waktu terlama 1 detik pada plant azimut dan 1,5 detik pada plant elevasi. Plant elevasi memiliki Mean Absolute Error (MAE) = 6,54o dan plant azimut memiliki MAE = 8,04o.

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