中图分类号： TN919.3；TN927.2 文献标识码： A DOI：10.16157/j.issn.0258-7998.201265 中文引用格式： 杨欣，郑禄，帖军，等. 基于北斗短报文的农业环境数据采集通信机制研究[J].电子技术应用，2021，47(11)：47-52. 英文引用格式： Yang Xin，Zheng Lu，Tie Jun，et al. Research on the communication mechanism of agricultural environmental data collection based on Beidou short message[J]. Application of Electronic Technique，2021，47(11)：47-52.
Research on the communication mechanism of agricultural environmental data collection based on Beidou short message
Yang Xin1，2，Zheng Lu1，2，Tie Jun1，2，Xie Wei1，2
1.College of Computer Science，South-Central University for Nationalities，Wuhan 430076，China； 2.Hubei Provincial Engineering Research Center for Intelligent Management of Manufacturing Enterprises，Wuhan 430076，China
Abstract： In order to realize the collection of agricultural environmental data in remote areas and other blind areas of communication, a method of agricultural environmental data collection based on Beidou short message communication, Internet of Things, cloud storage and other technologies is proposed. Aiming at the limitation of the limited communication capacity of Beidou short message, the coding design of agricultural environmental data is carried out to improve the efficiency of data. In view of the unreliability of Beidou short message communication, the user-defined system communication protocol proposes a request confirmation mechanism based on probability judgment at the sender and a dynamic cumulative confirmation mechanism at the receiver. The simulation results show that the communication mechanism can effectively ensure the reliable transmission of data. Through the field test in Changyang County, Hubei Province, the results show that the success rate of data transmission reaches more than 99% when the communication success rate of the sender changes with the environment, and the system runs stably, which can provide reliable agricultural environmental data collection service.
Key words : Beidou short message communication；agricultural Internet of Things；agricultural environmental data；communication mechanism