可组合式堆肥发酵多层温度自适应监测系统设计与试验

堆肥发酵是农业废弃物基质化、肥料化利用的一个重要技术手段。在堆肥发酵过程中,温度影响着发酵堆的发酵速率、发酵质量,因此研究发酵堆内部的温度分布对于发酵堆的精准管控至关重要。但由于不同堆置方式的发酵堆体积、高度不同导致传统固定探针式传感器难以灵活、便捷地进行针对性测量,给农业废弃物发酵过程的精准管控带来极大不便。针对以上问题,设计了一种杆体模块化、可拼接的低功耗组合式多层温度监测系统。实现了基于CAN总线的检测模块自适应识别,基于JSON封装与关系数据库的配置信息同步与自适应匹配,以及系统现场端、服务器端、微信小程序端人机界面自适应生成。经过功能、功耗以及系统实际测试,结果表明,监测系统可以实现连续监测过程中实时数据监测、低功耗运行,具备良好的稳定性,并且实现了系统硬件、服务器端、微信小程序端的同步配置、信息显示等功能,满足废弃物堆肥发酵过程的温度多层长期监测需求。

Combinable Multi-storey Adaptive Monitoring System for Composting Fermentation Temperature

Compost fermentation is a very important technical means of transforming agricultural waste into substrate and fertilizer. In the process of agricultural waste compost, temperature affects the fermentation rate and quality of the compost. Therefore, it is very important to study the temperature distribution inside the compost for the accurate control of compost. However, for fermentation piles with different stacking methods, their volume and height are different, which makes it difficult for the traditional probe sensor whose length of probe and the position of monitoring point are fixed to measure flexibly and conveniently which brings great inconvenience to the accurate control of the fermentation process of agricultural waste. In order to solve the above problems, a combined multi-storey temperature monitoring system was designed which can run in the state of low power consumption. The detection rod of the system was in the form of modularization, and the modules can be spliced freely according to the monitoring requirements. Adaptive identification of monitoring module based on CAN bus, configuration information synchronization and adaptive matching based on JSON text and relational database, as well as human-machine interface adaptive generation of system hardware, server, and WeChat applet were realized. After function test, operation power consumption test and long term operation test on site, the results showed that the monitoring system can realize real-time data monitoring and low-power operation in the continuous monitoring process, maintain good stability in the whole operation process, and realize the synchronous configuration and information display of system hardware, server side and WeChat applet side, which can meet the needs of multi-storey long-term temperature monitoring in the composting and fermentation process of agricultural waste.