WITHDRAWN: Ionospheric total electron content and scintillations characteristics from GPS signal observations at a low latitude station

Gundala, Sri Saicharan; Jakkampudi, Charitha Sree; Yadavalli, Anil; Vankadara, Ram Kumar; Panda, Sampad Kumar

doi:10.1016/j.matpr.2020.12.1041

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Accelerometer, this sensor has latitude, longitude, altitude. Latitude and longitude (Correa-Caicedo et al, 2021), (Gundala et al, 2021), (Kumar & Singh, 2011) are the same as GPS sensors, but they allow altitude to be detected. If likened to the use of the X axis, Y axis and Z axis, then the Z axis is to see the height.…”

Section: Methodsmentioning

confidence: 99%

Fall Detection using Sensors on a Smartphone

Priswanto

Haryono

2022

SinkrOn

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A work accident on a technician causes injury. When doing work, even though the technician is equipped with work safety, there are still factors that can cause accidents intentionally or unintentionally. The development of technology is now more advanced. Now the industrial revolution has reached the era of 4.0. Its progress is accompanied by information technology that is growing very rapidly. Many internets of things devices can already be used in everyday life. In today's life, the use of IoT devices has become a habit of today's modern society. For example, to travel using public transportation, there are many mobile apps that are connected to transportation providers. Including trade, the number of marketplaces has caused the growth of smartphones to be very fast. Smartphones are now equipped with many sensors, ranging from GPS sensors, wi-fi sensors, temperature sensors, and various sensors. Often the technicians in charge of climbing towers or heights are never caught by management or project leaders. Even though this causes losses both losses for technicians and losses for management. Therefore, how to monitor the technicians to be careful in carrying out their duties. Android smartphone devices have many sensors. Sensors in Android are used as a fall detection tool. By using Android sensors, the use of Internet of Thing sensors on smartphones will produce very useful monitoring tools. The use of Flutter framework as a medium for utilizing the accelerometer sensor and gyroscope sensor as a fall detection tool. This study aims to create a prototype of a fall detection application system.

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Section: Methodsmentioning

confidence: 99%

Fall Detection using Sensors on a Smartphone

Priswanto

Haryono

2022

SinkrOn

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Multi-constellation GNSS Ionospheric Scintillation Monitoring through PolaRx5S Receiver at a low latitude station in India

Vankadara

Reddybattula

Panda

2021

2021 IEEE International Women in Engineering (WIE) Conference on Electrical and Computer Engineering (WIECON-ECE)

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Variability of Ionospheric Total Electron Content Over Morocco During the Godzilla Sand and Dust Storm of June 2020

Edward,

Uga,

Odhiambo

et al. 2024

IJASS

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During sand and dust storm (SDS) events, atmospheric suspension and transport of sand and dust brings a reasonable amount of electrification in the atmosphere which plays a very important role in the atmosphere-ionosphere coupling. The Godzilla SDS began on 5th June 2020 in Algeria following a decrease in pressure and spread to other areas across the Sahara between 6th and 28th June 2020. Using SDS data from Copernicus Sentinel-5P satellite mission and Vertical Total Electron Content (VTEC) data from four GNSS receiver stations: IFR1 (Ifrane Seismic), MELI (Melilla), TETN (Tetouan) and OUCA (Ouca) over Morocco, we investigate the possible ionospheric TEC variability over the four GNSS receiver stations during the Godzilla SDS event which was tracked using the Sentinel-5P Satellite mission. Solar wind parameters: Horizontal component of Interplanetary Magnetic Field (IMF-Bz), interplanetary Electric Field (IEF-Ey) and solar wind speed (V) and geomagnetic indices: Disturbance Storm Time (Dst) and Planetary K (Kp) indices were examined and showed very minimal geomagnetic influence during the period. We observed major ionospheric disturbances over the four Global Navigation Satellite System (GNSS) receiver stations on 16th, 17th, 18th, 21st, 22nd, 23rd 25th and 26th June 2020: the period with the Sentinel-5P Aerosol Index (SAI) of more than 4 as recorded by the Sentinel-5P Satellite engine. The daily VTEC values over the four GNSS receiver stations recorded continuous electron density perturbations during these days. Apart from the ionospheric TEC perturbations, significant enhancements and decreases in daily maximum VTEC values over the four GNSS receiver stations were also noted. These were attributed to the changes in the atmospheric electric fields generated by the SDS event. The VTEC plots for each day exhibited similar trends, hence exhibited the same ionospheric dynamics. VTEC depletions of depths 3 to 6 TECU over all the four GNSS receiver stations were noted on 12th, 14th, 17th, 20th and 25th June 2020. Nighttime VTEC enhancements were also noted and majorly occurred between 20:00 and 21:00 UT on 9th, 13th, 15th, 17th, 19th, 20th and 21st June 2020. This was attributed to the development of the electron avalanche processes including dust and electron absorption or losses and the active conversion to electron dissociative attachment leading to electron excitation. In conclusion, the Godzilla SDS of June 2020 led to the electron density perturbations over Morocco.

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WITHDRAWN: Ionospheric total electron content and scintillations characteristics from GPS signal observations at a low latitude station

Cited by 3 publications

References 27 publications

Fall Detection using Sensors on a Smartphone

Fall Detection using Sensors on a Smartphone

Multi-constellation GNSS Ionospheric Scintillation Monitoring through PolaRx5S Receiver at a low latitude station in India

Variability of Ionospheric Total Electron Content Over Morocco During the Godzilla Sand and Dust Storm of June 2020

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