Sensor fuzzy optimization method for accurate positioning of ship component assembly

Abstract

The invention provides a sensor fuzzy optimization method for accurate positioning of ship component assembly. The method comprises the following steps: determining a ship component assembly unit sensor type selection scheme; finding out an evaluation index set of a corresponding scheme; classifying and layering all evaluation indexes, and establishing a multi-target multi-layer structure model of the ship component assembly sensor; determining the membership degrees of all indexes in the model and the weight of each layer, and calculating the membership degrees and the weights of evaluation indexes; using the target layer as a first layer of the structure, enabling the membership degree corresponding to each index in the first layer to form a first layer fuzzy optimization membership degree matrix, calculating the fuzzy optimization membership degree of the first layer, giving an index weight set of the first layer, and obtaining the fuzzy optimization membership degree of the layer; and descending layer by layer from the first layer, performing fuzzy operation on each layer until the bottommost layer obtains the membership degrees of all the schemes, and selecting the scheme with the maximum membership degree as the optimal scheme according to the maximum membership degree principle.

Description

technical field [0001] The invention relates to the field of ship building, in particular to a sensor fuzzy optimization method for precise positioning of ship component assembly. Background technique [0002] Hull assembly is a key link in the shipbuilding process, which greatly affects the quality, construction cost and cycle of the ship. The shipbuilding process is complex and consists of thousands of parts assembled and welded. The workload is huge and manual assembly It can no longer meet the production demand. At present, my country's hull assembly technology is transforming to the stage of digital application. Positioning technology is the premise and condition for the realization of digital precision assembly of ships. There are many factors affecting the positioning of ship hull assembly. It is particularly important to select the appropriate type of sensor for the accuracy of ship component assembly and positioning. The current sensor selection has strong subjectivi...

AI Technical Summary

Problems solved by technology

[0002] Hull assembly is a key link in the shipbuilding process, which greatly affects the quality, construction cost and cycle of the ship. The shipbuilding process is complex and consists of thousands of parts assembled and welded. The workload is huge and manual assembly It can no longer meet the production demand. At present, my country's hull assembly technology is transforming to the stage of digital application

Positioning technology is the premise and condition for the realization of digital precision assembly of ships. There are many factors affecting the positioning of ship hull assembly. It is particularly important to select the appropriate type of sensor for the accuracy of ship component assembly and positioning. The current sensor selection has strong subjectivity and randomness. , when faced with many index parameters, users cannot make comprehensive comparisons

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