Results 1 to 10 of about 384,078 (263)

Development of a Novel Railway Positioning System Using RFID Technology

open access: yesSensors, 2022
Currently, a number of positioning systems are in use to locate trains on the railway network; but these generally have limited precision. Thus, this paper focuses on testing and validating the suitability of radio frequency identification (RFID ...
Osama Olaby   +4 more
doaj   +3 more sources

Positioning System of Infrared Sensors Based on ZnO Thin Film [PDF]

open access: yesSensors, 2023
Infrared sensors incorporating suspended zinc oxide (ZnO) pyroelectric films and thermally insulated silicon substrates are fabricated using conventional MEMS-based thin-film deposition, photolithography, and etching techniques.
Chia-Yu Tsai   +3 more
doaj   +2 more sources

Fast 50 Hz Updated Static Infrared Positioning System Based on Triangulation Method [PDF]

open access: yesSensors
One of the important issues being explored in Industry 4.0 is collaborative mobile robots. This collaboration requires precise navigation systems, especially indoor navigation systems where GNSS (Global Navigation Satellite System) cannot be used.
Maciej Ciężkowski, Rafał Kociszewski
doaj   +2 more sources

Development of an Automatic Identification System Autonomous Positioning System

open access: yesSensors, 2015
In order to overcome the vulnerability of the global navigation satellite system (GNSS) and provide robust position, navigation and time (PNT) information in marine navigation, the autonomous positioning system based on ranging-mode Automatic ...
Qing Hu   +4 more
doaj   +3 more sources

TOWARDS AUTONOMOUS HIGH-DEFINITION MAP CONSTRUCTION [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
This paper presents a GPS constrained SLAM solution, which adds reliable GPS observations as key frames to the state-of-the-art SLAM algorithm Lightweight and Ground-Optimized Lidar Odometry and Mapping (LeGO-LOAM). As the GPS has a much higher frequency
J. Wu   +4 more
doaj   +1 more source

Wetland vegetation changes in response to climate change and human activities on the Tibetan Plateau during 2000–2015

open access: yesFrontiers in Ecology and Evolution, 2023
The Tibetan Plateau (TP), known as the third pole, is the highest plateau in the world. It has numerous wetlands, which are important ecological security barriers and plays an important role in mitigating global climate change. This paper employed breaks
Yuhan Chen   +11 more
doaj   +1 more source

L1 SFMC SBAS Message for Service Expansion of Multi-Constellation GNSS Support

open access: yesIEEE Access, 2023
Currently operating satellite-based augmentation systems (SBASs) provide an augmentation service that improves global positioning system (GPS) performance at 250 bps via the L1 signal.
Cheolsoon Lim   +2 more
doaj   +1 more source

Illegal Forensic Analysis System for Vehicle Trajectory Data [PDF]

open access: yesJisuanji gongcheng, 2017
Aiming at the problems of low efficiency and single function of the existing illegal forensics analysis system for public security,this paper proposes an illegal forensics analysis system based on cloud platform and big data.It uses MongoDB to store ...
QIAO Qianxiong,ZENG Jieru,PENG Xuan,GUO Chi
doaj   +1 more source

Monitoring the movement of housed animals by means of wireless technology

open access: yesResearch in Agricultural Engineering, 2022
Currently, several, more or less, suitable means for detecting, identifying and monitoring the position of housed animals exist. However, these means suffer from various limitations, which could be eliminated with regard to the current technical and ...
Martin Olmr   +3 more
doaj   +1 more source

Utilizing Ensemble Learning to Improve the Distance Information for UWB Positioning

open access: yesApplied Sciences, 2022
An ultra-wideband (UWB) positioning system consists of at least three anchors and a tag for the positioning procedure. Via the UWB transceivers mounted on all devices in the system, we can obtain the distance information between each pair of devices and ...
Che-Cheng Chang   +4 more
doaj   +1 more source

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