Protected Horticulture Information Classification Code And Research On Communication Protocol

With the continuous advancement of agricultural informatization,protected horticulture is also developing in the direction of intelligence,systemization and networking.What followed is the rapid growth of data in protected horticulture,and the increasing scale of information resources,but most of the system data is self-contained,directly affecting the sharing of information resources.The reason is that the data collation method is unreasonable and the information is standardized and the degree of standardization is not high.Therefore,rational and effective organization of information and standardization of its transmission method is an effective way to solve the problem of data resource integration and data communication format in protected horticulture.Construction of the protected horticulture classification coding system.On the basis of research on national and industry standards related to protected horticulture information objects,all information objects in protected horticulture were collected.The information objects of protected horticulture are divided into seven categories by surface classification method,and then several fine categories under each category are classified by line-by-line method to form a protected horticulture classification system.The information objects in the protected horticulture classification system are standardized and systemized in the form of location code,so that all information objects in the protected horticulture can be uniquely identified in a two-byte 256×256 area code matrix to form a code table,and then build a protected horticulture classification coding system.Construction of protected horticulture measurement and control communication protocol.Based on the classification and coding system,the information objects in the protected horticulture are systematically summarized.Referring to the MODBUS communication protocol,the IEC101 communication protocol,the transmission protocol of the remote equipment and system,and the communication message format of other monitoring systems,the data types,transmission methods and data contents of the communication between the host and the slave in the protected horticulture are analyzed in detail.A framework for the facility horticultural measurement and control communication protocol was established.The transmission format of information data in protected horticulture is unified as a whole,and the structured application of data transmission in protected horticulture information processing is discussed.It makes the mutual translation sharing between the systems possible,and provides reference for the unification of data communication formats and the integration and sharing of data resources in protected horticulture.The classification and coding system of protected horticulture information is an important basic work of protected horticulture informationization,which can meet the needs of standardized management of data information in protected horticulture.On this basis,the communication protocol of measurement and control in protected horticulture is designed,which lays a foundation for computer storage,processing and multi-faceted application of data in protected horticulture.In addition,this study provides a reference for standardization and information research in the field of protected horticulture.