Application Of A Distributed Agricultural Sensor Network

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Abstract— As the world’s population continues to grow, new agricultural technologies will be needed to keep up with the growing demand. To accomplish this, agricultural systems must increase production while at the same time more effectively utilizing and conserving the resources that go into that production. One possible solution is the collection and analysis of environmental data. IoT sensor networks can cheaply provide distributed data that can be used to improve plant health, increase harvest yields, and decrease waste. The primary focus of this project will be to prototype a distributed agricultural sensor network that will be able to monitor the environment, network and analyze the data on the cloud, and finally provide feedback to…show more content…
This is an active area of IoT research and will be the primary focus of this project. If data can be effectively gathered, networked, and analyzed, then that data can then be used to impart real and significant change on the environment. For agricultural systems this will result in improved plant health, increased harvest yields, and decreased waste. A. Background One of the most utilized and standardized IoT stacks is the IEEE 802.11.4, 6LoWPAN, RPL, and CoAP stack. The IoT stack layers are similar to OSI and they share many of the same abstraction layer divisions. These similarities assist with the interoperability of IoT protocols with those of the Internet. The IEEE802.15.4 protocol defines the physical and link layers of stack. These layers define how data is modulated onto the channel, how the channel is shared between multiple users, as well as the low-level packet checks and retransmissions. IEEE802.15.4 operates in the 2.4GHz ISM band using Quadrature Phase-Shift Keying with additional Direct Sequence Spread Spectrum encoding. This allows the radio to better reject noise and other interference. IEEE802.15.4 utilizes 16, 5MHz channels in order to generate a data throughput of 250kbps. The maximum payload size is 127 Bytes [1]. Compared to WiFi, the data rate and maximum packet size is significantly less. These characteristics are the result of the limited hardware used for
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