温室数据采集系统远程通信接口设计研究

随着现代温室朝着集约化、规模化方向的发展和温室管理智能化要求的提高，温室测控系统实现远程通信，进而实现温室内生产与管理的一体化，是现代智能温室发展的必然趋势；鉴于RS-485总线结构的温室测控系统存在数据传输距离近，通信协议专用，可扩展性差等弊端，该文将TCP/IP协议作为一种嵌入式应用，采用8位普通微控制器与以太网控制芯片相结合，设计开发了温室数据采集系统的远程通信接口；并详细论述了其软硬件设计方案，探讨了TCP/IP协议的裁剪策略；对温室数据采集系统的底层网络与Internet的集成做了初步的研究。

Research and development of remote communication interface for greenhouse data acquisition system

With the development of modern intensive and scaled greenhouses and the advancement of their intelligent management, modern greenhouse technology is witnessing a trend of integration of greenhouse production and its management through remote communication. In consideration of the shortcomings of RS-485 bus based on greenhouse monitoring and controlling systems, such as short distance of data transmission, exclusive communication protocol, poor scalability, etc, an embedded application of TCP/IP, a remote communication interface for greenhouse data acquisition system by integrating an ordinary 8 bit MCU and an Ethernet controller chip were developed. The system hardware and software schemes were presented in detail and the tailoring strategy of TCP/IP was also discussed. The integration of networking layers of the system bottom and the Internet is preliminarily studied in the paper as well.