Abstract
The article discusses the possibilities of using wireless technologies of the Internet of Things at agricultural facilities using the example of ZigBee technologies. This topic seems to be relevant, since the smart farm market is growing very quickly. This is due to the fact that the use of automated control systems for humidity, temperature, acidity, electrical conductivity of the soil, etc. allows you to increase productivity, reduce costs. The aim of the research is to assess the potential communication range between ZigBee devices, and to analyze the factors affecting the quality of the radio channel. As the results of the work, it should be noted a mathematical study of radio channels at frequencies of 868 and 2400 MHz, analysis of factors affecting signal propagation. The article also provides practical recommendations for choosing a network topology and ZigBee equipment..
Highlights
The Internet of Things (IoT) is evolving at a rapid pace thanks to the availability of inexpensive hardware
Many industries are using the Internet of Things to analyze customer needs in real time, improve agility, improve service, streamline operations, and find innovative ways to work as part of their digital transformation efforts
Technologies of the Internet of Things penetrate into all spheres of our life: science, medicine, education, industry, agriculture [1,2,3,4,5,6,7,8,9,10,11]
Summary
The Internet of Things (IoT) is evolving at a rapid pace thanks to the availability of inexpensive hardware. Within the framework of this model, the maximum communication range between a receiver and a transmitter located near the Earth's surface depends on the curvature of the planet (the radius of the planet is 6365 km), as well as on the height of the transmitting and receiving antennas This distance in kilometers is calculated using the following formula: Lmax ( 2h1Rz 2h2Rz ) , 1000. If the receiver or transmitter is located on mobile objects, or both are mobile, the task of determining realistic parameters becomes much more difficult All these factors are problematic to take into account, but the two-beam model makes it possible to take into account the influence of the signal reflected from the Earth's surface. The use of this model makes it possible to calculate the parameters of the radio channel rather realistically [12]
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