作物需水信息系统的研究

Research on Water Requirement Information System for Crops

掌握准确的作物生长信息和温室内外气候状况,对灌溉决策有着重要的意义。本文采用无损检测对温室作物冠层微气候、土壤环境、室内外气候信息实时采集,利用无线数字传输技术将子站的采集数据发送到主站,主站和PC机之间通过RS232通信对数据进行存储和显示。实践证明:该系统工作稳定,数据传输可靠,基本达到了设计要求。

Knowing accurate information of growing plants , weather condition inside and outside the greenhouse have great meaning to the irrigation decision. In the article, plant canopy microclimate, soil environment, weather condition inside and outside the greenhouse are collected timely by using the method of nondestructive detection . And the technique of wireless digital transmission is applied for sending the eolleted datas from substations to the master station, then store and display datas through RS232-communications between the master station and PC. It has been proved that the system can work steadily, transfer reliably, so it has reached the design requirement basically.