A data point position management and collection method based on OPCUA protocol

Abstract

The application discloses a data point position management and acquisition method based on an OPCUA protocol, constructs a data point position object node with self-description capability based on an OPCUA information model, and introduces a life cycle state control mechanism to control data acquisition, store and report data point positions, and the data point position management and acquisition method is characterized in that the method comprises the following steps: step 1, constructing a unified OPCUA address space in an edge collection and modeling node, predefining a point position object type in the OPCUA address space, constructing a point position information model for each data point position based on the point position object type, and establishing a point position object node; and step 2, creating a corresponding device object node in the OPCUA address space for each device in a coal mine electromechanical system, organizing the point position object node corresponding to the point position information model under the corresponding system domain and the device object node, and forming a hierarchical structure of system-device-data point position.