3results about How to "Correct distortion" patented technology

The present application relates to a kind of wind tunnel test complex building surface pressure measuring pipe signal distortion correction method, it is related to wind tunnel test data processing field.This method includes the following steps: S1, building model is prepared, region is divided, and measurement point is set;S2, the pressure measuring tube diameter at measurement point of wind tunnel test is determined;S3, wind tunnel test is carried out, and the result is handled to obtain wind pressure time history;S4, wind pressure time history is filtered;S5, to the distorted pressure measuring pipe signal is corrected, and the real signal time history is obtained.This method can be more accurate by twice filtering, the pipe distortion problem that appears in pressure measurement time is corrected, it is suitable for the region of complex building deformation larger.And this method can effectively improve the accuracy of wind tunnel test measured data, better help production and scientific research work development.The existing method only considers the characteristics of pressure measuring tube, and the correction method is simple, and the problem of easy to produce error correction result is solved.

The utility model discloses an evaporator fin pressing device, which belongs to the technical field of evaporator production and comprises a support frame used for supporting evaporator fins, a fixing plate is mounted at the top of the support frame, four fixing rods used for supporting and guiding are welded at the top of the fixing plate, a mounting plate is mounted at the tops of the fixing rods, and the mounting plate is mounted on the support frame. A power box and a telescopic rod are mounted at the top of the mounting plate, a movable part of the telescopic rod is connected with a connecting disc, a pressing plate is welded to the bottom of the connecting disc, a cross-shaped groove for guiding is formed in the pressing plate, a cross-shaped moving plate is slidably mounted in the cross-shaped groove, a connecting column is connected to one side of the cross-shaped moving plate, and the connecting column is connected to the other side of the cross-shaped moving plate. According to the evaporator fin pressing device, the pre-pressing capacity can be improved, distortion or deviation generated in the production and transportation process of fins can be effectively corrected, the pressing uniformity and stability are improved, the production efficiency is improved, and the cost is reduced.

The application discloses a kind of industrial data transaction processing method, system and storage medium supporting privacy protection, belong to big data processing and privacy computing technical field.The application is aimed at the problems of value evaluation distortion, blind state quality quantization difficulty and side channel attack risk etc existing in complete equipment data transaction with strong physical coupling relationship in industrial internet of things, first, the global ciphertext topology graph is constructed by double-mode physical coupling attenuation model, and the mechanical transmission or space flow field coupling between devices is quantified as a secret state adjacency matrix.Second, the edge node performs normalized entropy value calculation on high-frequency sensing signal, and the blind state quality is identified and innately authorized by smart contract.Then, the spatial centrality and gradient cosine similarity are calculated in graph federation iteration, and the exogenous contribution weight is accumulated.Finally, the data value is comprehensively evaluated by a nonlinear coupling formula, the counterparty share is determined, and the clearing rights and interests are finally issued asynchronously by the confused network with secret state credentials.