Electronic product test equipment modeling method
A modeling method and technology of electronic products, applied in the direction of simulators, instruments, control/regulation systems, etc., can solve the problems of product and test equipment modeling and model data transmission performance that have not yet appeared
Pending Publication Date: 2020-06-09
BEIHANG UNIV
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Problems solved by technology
[0007] The current modeling research on electronic product test equipment and measured objects is mainly based on the traditional method of hierarchical model construction after abstracting test functions and test data according to their characteristics. The disadvantage is that the data transmission performance of these models is low.
Moreover, currently there is only research on applying OPC UA-based modeling and simulation technology to digital workshop and train monitoring systems, and there have been no relevant cases of applying OPC UA modeling ideas to the modeling of products and test equipment in the electronics industry.
Method used
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Embodiment 1
[0038] Such as figure 2 and image 3 As shown, the test equipment ATE node, the test function Test Function node and the test data Test Data node all contain three attributes, which are static attributes , dynamic properties and reference types .
[0039] static property Include 、 、 、 、 、 as well as etc., are unchangeable and are used to describe the basic information of nodes in OPCUA. Represents the number of the current node, which is used to uniquely identify a node in the OPC UA server and locate the node in the OPC UA service; It is used to define the category of nodes. The node category of test equipment nodes and all test function nodes is Object, and the node category of test instruction and test data nodes is variable; Used to identify nodes when browsing the address space; Used to display the name in the user interface; Used for textual description of nodes; Used to limit whether node attributes can be modified; Used to limit whether the current ...
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The invention discloses an electronic product test equipment modeling method. The method is characterized in that an OPC UA data modeling idea is applied to hierarchical description of a test equipment model, and can ensure hierarchy, integrity and reusability of the test equipment model; the model is divided into three layers, all test equipment, test functions, test instructions and test data are abstracted into OPC UA nodes, all the contents can be completely described, the relationship among the contents is clear, mutual reference among nodes can promote mutual reference among different test equipment, test functions, test instructions and test data in simulation, and reusability of the model can be improved through layering and standardization of the model. The method is advantaged inthat the OPC UA node thought and the hierarchical thought are combined to construct the test equipment model, and the model is deployed behind a server through mutual reference between model nodes and by using an object trigger event, so a client can acquire and analyze data from the server at any time, and data transmission performance of the model is improved.
Description
technical field [0001] The invention relates to the field of product testing in the electronic industry and the technical field of modeling and simulation, in particular to a modeling method for electronic product testing equipment. Background technique [0002] The basic concepts of OPC UA data modeling are nodes and references between nodes. Nodes can belong to different node categories according to different purposes. Attributes are used to describe nodes. According to node categories, a node can have different attribute sets. The attributes of a node depend on its node type. Nodes with node class Object are used in address space structures. The object only contains attributes describing the node such as the browse name and description, and does not contain data. Variables are used to provide external values. Objects can be used to group variables, methods, or other objects. A node with node class Variable represents a value whose data type depends on the variable. Cl...
Claims
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Login to View More IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 张霖钱广昊罗啸张渊凯
Owner BEIHANG UNIV