Abstract
Abstract This paper proposed an agricultural application of wirless sensor network. The main work is to implement two types of nodes and building sensor network. The hardware platform is constituted by data process unit, radio module, sensor control matrix, data storage flash, power supply unit, analog interfaces and extended digital interfaces. The software system adopts TinyOS which is composed of system kernel, device drivers and applications. Energy-saving algorithm is implemented in the software system. The monitoring network adopts two networking protocols. The Collection Tree Protocol is a tree-based collection protocol which consists in collecting the data generated in the network into a base station. The dissemination is the complementary operation to collection. The goal of a dissemination protocol is to reliably deliver a piece of control and synchronization instructions to every node in the network. The experimental results show us that the monitoring system is feasible for applications in precision agriculture.
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