基于LoRa的鸡舍环境物联网监测系统研究

Research on LoRa-Based IoT Monitoring System for Chicken House Environment

针对鸡舍环境监测自动化程度普遍较低等问题,提出并研究了基于LoRa无线通信技术的鸡舍环境物联网监测系统。以STM32单片机和LoRa模块为核心,根据肉鸡和蛋鸡养殖环境监测的地方标准中所规定的监测技术指标,选择温湿度传感器、光照度传感器和氨气传感器,设计了传感器节点的硬件电路。传感器节点能够实时监测鸡舍环境参数信息,并通过LoRa无线通信技术将数据发送至网关节点。网关节点接收到环境数据之后,通过ESP8266通信模块把数据发送至WiFi路由器。然后,数据再被传输到OneNET云平台进行处理。测试结果表明:当相距800 m时,仍然能够实现数据的稳定无线传输。该系统能够满足大型鸡舍环境监测要求,为农业畜禽养殖环境监测提供了一套有效实施方案。

Aiming at the poor automation in monitoring the environment of chicken coops in rural areas,an IoT monitor⁃ing system for chicken coops based on LoRa technology was proposed and developed.The focus is on designing sensor nodes and gateway nodes in the perception layer.The STM32 microcontroller and LoRa module are the core of sensor nodes.According to the monitoring technical indicators specified in the local standards for monitoring the breeding envi⁃ronment of broilers and laying hens,the hardware circuit of the sensor nodes was designed by selecting the temperature and humidity sensor module,the light intensity sensor module,and the ammonia sensor module.The sensor node moni⁃tors the environmental parameter information of the chicken coops in real-time and sends the data to the gateway node through LoRa wireless communication technology.After receiving environmental data,the gateway node sends the data to the WiFi router through the ESP8266 communication module.Then,the data is transmitted to the cloud platform OneNET for processing.The test results indicate that stable wireless transmission of data can still be achieved when the distance is 800 meters.The system not only meets the environmental monitoring requirements of large-scale chicken coops,but also provides an effective implementation plan for environmental monitoring of agricultural livestock and poul⁃try breeding.