温室环境控制系统的发展

Development of Environment Control System in Greenhouse

详细叙述了国内外温室环境控制系统在软硬件设计、控制策略的优化组合、节能等方面的研究进展。指出了温室环境控制系统的现存问题:第一,温室环境控制系统在软硬件的设计上存在着多样性,不同的设计方法产生的控制系统无论在控制精度、能源的节约、还是控制的有效性方面都存在着很大的差异;第二,各种控制算法各有优缺点,单一的采用某种控制算法,不能满足温室环境控制的精度要求;第三,目前国内外越来越重视对能源的节约,但是在节约能源的具体实现方法上还有待进一步研究。提出温室环境控制系统将向分布式、自动化、智能化、网络化方向发展,并应将专家系统、遗传算法和模糊神经网络等各种控制算法及仿真预测相融合,优化控制系统的性能,合理利用温室空间,充分节约能源,以提高能源的利用率,为温室作物创造最适宜的生长环境,促进设施农业的全面发展。

This paper introduced the developments of the greenhouse environment control system in software and hardware, optimization of control algorithm and energy conservation in China and other countries. Several existing problems of the greenhouse environment control system were pointed out： first of all, there is diversity in the design of software and hardware, which made it significant different in the control precision, in energy conservation and in the control effectiveness of the control system; Secondly, each control algorithm has its own advantages and disadvantages, the adoption of a single control algorithm can not satisfy the precision requirements of the environmental control of the greenhouse; Thirdly, there is a growing emphasis on energy conservation at present, but specific realizing methods of energy saving have to be further studied. The orientation of greenhouse control system development will be presented distributed, automated, intelligent and network.-oriented. A variety of control methods such as Expert System, Genetic Algorithm, Fuzzy-Neural Network and simulation should be combined, the performance of the control system should be optimised, the greenhouse space should be rational used and energy saving should be to the full, on purpose of enhancing energy efficiency to create the optimal growth environment for the plants growing in the greenhouse and help the development of the Protected Agriculture.