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Wireless Channel Path-Loss Modelling for Agricultural and Vegetation Environments: A Survey CIGR Journal
Narayanan, Gayathri; Kurup, Dhanesh.
This work undertakes an extensive survey of the channel modelling methods and path-loss characterization carried out in agricultural fields and vegetation environments in an attempt to study the state-of-the-art in this field, which, though vastly explored, still presents extremely diverse opportunities and challenges. The interface for communication between nodes in a typical agricultural field is the wireless channel or air interface, making it imperative to address the impairments that are exclusive to such a communication scenario by studying the characteristics of the medium. The performance of the channel is a direct indicator of the quality of communication. It is required to have a lucid understanding of the channel to ensure quality in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agriculture; Channel modelling; Path loss; Sensor networks.
Ano: 2023 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7157
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UNCERTAINTY ANALYSIS OF A WEB-BASED DATA ACQUISITION SYSTEM FOR POULTRY MANAGEMENT WITH SENSOR NETWORKS REA
Yu,Ligen; Teng,Guanghui; Riskowski,Gerald L.; Xu,Xuzhang; Guo,Wenzhong.
ABSTRACT This paper presents a web-based data acquisition system developed by the LabVIEW software program for environment monitoring for poultry management. The measurement error and uncertainty analysis should be conducted accurately to maximize the reliability of this system. An algorithm was proposed for the uncertainty analysis to estimate the sensor networks, with the calibration and validation processes fulfilling the standards of the Guide to the Expression of Uncertainty in Measurement. For the different environmental sensors, the values of the uncertainties were calculated by the methods of type A and B evaluation through a case study. Environmental parameters including air temperature, relative humidity, and CO2 concentration of a compartment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Uncertainty analysis; Sensor networks; Data acquisition; Measurement; Poultry management.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000600857
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