Crop greenhouse cultivation expert control system and crop disease diagnostic method

The invention belongs to the fields of facility agriculture, a computer technology and an automatic control technology. The invention provides a crop greenhouse cultivation expert control system and a disease diagnostic algorithm of a disease diagnosis subsystem thereof. The crop greenhouse cultivation expert control system is mainly characterized in that the crop greenhouse cultivation expert control system is connected with an environment parameter detecting system, a crop growth condition detecting system and an environment conditioning system, and has main functions of environment parameter decision of crop cultivation, growth condition classification, pathologic diagnosis indirection and the like. The disease diagnostic algorithm of the disease diagnosis subsystem comprises a crop disease characteristic knowledge encoding expression manner and a disease characteristic extraction algorithm. An expert system knowledge base can be replaced in an assorted manner according to relevance among subsystems of different crops, so as to be used as a greenhouse cultivation expert system for the different crops. The crop greenhouse cultivation expert control system provided by the invention has simple volume, is simple and easy to operate, can be independently used or used by means of being assorted with an external system, and other advantages. The crop greenhouse cultivation expert control system is very suitable for an agricultural greenhouse cultivation producer to use, and has a great development prospect.