Study On Monitoring System And Evaluation Of Growth Environment Of Quinoa

With the development of Internet of Things technology,wireless communication technology and related technologies in the past decade,China has been transformed from traditional agricultural production mode to modern agricultural mode.Traditional crop environmental monitoring systems have many problems,such as low measurement accuracy,inability to collect data for a long time,too much power consumption in the process of data transmission and too high cost of equipment installation for areas with a long monitoring range.Therefore,it is necessary to increase the communication distance of the environmental monitoring system,reduce the power consumption,improve the reliability and real-time performance of the monitoring data,and increase the anti-jamming ability.Taking quinoa as the research object,this paper designed a set of quinoa growth environment monitoring system based on LORA technology.An environmental assessment model for quinoa planting area was established.The main research contents of this paper are as follows:(1)To study the crop growth environment monitoring technology at home and abroad and the current situation of the development of wireless sensor network,introduces LoRa technical key points,including the spread spectrum communication system and the network architecture of LoRa,through to LoRa technology and other wireless communication technology,this paper compares and analyzes LoRa technology advantage,put forward to LoRa technology application Yu Li wheat growth environment monitoring system.(2)On the basis of demand analysis and scheme design,combined with the feasibility and real-time analysis of the system,the detailed design of software and hardware of the system was carried out.The basic components of the system are terminal node,gateway and server.The Lora wireless transmission technology is used to upload the environmental parameters collected by the terminal acquisition node to the server.The hardware includes MCU module,sensor module,RF transceiver module and power module,and establishes the hardware system architecture.In terms of software,the network design was carried out according to the LORA communication protocol to realize the communication between multiple acquisition nodes and the gateway,and the embedded operating system Linux was transplanted to the gateway to increase the scalability and portability of the system.Finally,a Web server is designed,which can display the collected environmental parameters in real time in the interface.Debugging and function display of the whole system,and finally make the system to achieve the expected design objectives.(3)Assessment questions for quinoa planting region growing conditions,constructed the quinoa growing environment rating index system,established a growing environmental assessment based on fuzzy comprehensive evaluation model,at the completion of the evaluation index system of scientific design work on the basis of the weight of each evaluation index,such as membership degree is calculated,finally get the results of the analysis.In combination with the five local growth indicators in the recent five years,15.63% of experts rated it as excellent,16.88% as good,31.88% as good,35.63% as average and none as bad,which fully indicated that the growth conditions in this area could be used for quinoa cultivation.