Grain is a national strategic resource, and is directly related to national security and social stability. The development of the grain internet of Things is highly valued by the government. The paper discusses the basic concept of internet of things, not only mentions the information function model of IOT for grain monitoring, but also proposes the architecture reference model of the internet of things for grain monitoring which is composed of four layers: perception layer, transport layer , processing layer and application layerjt also analyses the function of each layer, and discusses the key technical problems in future research.
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