Affected by electric field generated in power transmission line, live worker on the high-voltage transmission line is in dangerous working environment. In this paper, posture perception, numerical simulation, and risk assessment are adopted to realize the deep fusion of physical trajectory and spatial virtual electric field distribution of live worker, and digital twin bodies of live worker in different live working scenarios are constructed. Firstly, posture trajectories and 3D model of living worker in typical operation conditions are captured and reconstructed by full-body inertial action capture technology and this technology use motion capture unit which include 3-aixs accelerometer/gyroscope/magnetic field sensors. The length of complex gap and body workspace under various live work scenes are also calculated. By static electrical field finite element (FE) numerical modeling, surface electrical field distributions of live worker under different posture trajectories are then calculated. Finally, interactive mechanism between ''body-information-physical environment-virtual environment'' is introduced, and potential risk of live worker is on-line assessed by live work guide rules. This work develops a new assessment and protection method for virtual training and field operations of high-voltage live worker. Which is of great significance for enhancing operation level and ensuring living workers' safety.
Abstract. Augmented reality technology is to integrate computer-generated three-dimensional virtual objects seamlessly with objects in real situations, thus providing a complementary and visual enhancement to the real world. In this paper, we set up a set of transformer evaluation index based on augmented reality. By comparing the calculation of the support and confidence of association rules, and at the same time the introduction of variable weight formula, get the weight coefficient of each evaluation index, effectively avoid the subjectivity of expert advice or experience; Based on the extensibility of the set pair analysis, the accuracy of the uncertainty factor of the transformer evaluation of the augmented reality is improved by using the 4-element relationship. But given the evaluation process is a series of uncertain factors, and generalized evidence theory fusion set pair analysis is presented of the augmented reality transformer evaluation methods, will be set after dealing with the true function of the results of analysis as the initial probability distribution of generalized evidence theory, the final step by step, to get the final result. Compared with the set analysis method, the augmented reality transformer evaluation method based on the generalized evidence theory has a good evaluation effect. But considering the uncertain factors during the evaluation process, and generalized evidence theory fusion set pair analysis is presented of the augmented reality transformer evaluation methods, will be set after dealing with the true function of the results of analysis as the initial probability distribution of generalized evidence theory, the final step by step, to get the final result. The comparative analysis shows, compared with the set analysis method, the augmented reality transformer evaluation method based on the generalized evidence theory has a good evaluation effect. The Establishment of the State Model Based on Augmented Reality Transformer EvaluationThe Choice of State Quantity. The most fundamental thing to the augmented reality transformer evaluation is the establishment of evaluation system. On account of augmented reality transformer and the purpose&features of the system application, through the research and analysis to the augmented reality transformer, we can establish the evaluation system from aspects of picture elements, picture texture and the robustness of the software. As shown in table 1: We choose adaptive lighting as augmented reality in the evaluation of transformer state because AR is on the basis of real device stack virtual model, and meantime the light of virtual model should be downy and it shouldn't conflict with real environment; we choose the actual state of the transformer as a reinforced reality is due to the fact that, for example, in the case of a real transformer superimposed model, it is necessary to look at the internal structure and to penetrate the visual display of the internal structure; select the precise overlay as augmented reality Transformer evaluates...
Since virtual simulation needs multiple kinds of data as support, the construction of smooth simulation environment requires higher efficiency in data resource management and control. Based on this, a virtual simulation resource management and control platform for electric power training is proposed. On the basis of analyzing the architecture characteristics of virtual simulation engine, the platform structure of operation process simulation and optimization is designed based on three-layer BS mode. The virtual simulation platform is used as the exchange center to establish the data interface. It builds virtual simulation scenarios through mapping, and implements virtual protection tests through GOOSE messages for data management and protection. The control purpose is realized according to the operation process of the equipment and the inherent protection logic. In this paper, a communication module is designed to ensure smooth data transmission between modules. The test results show that the corresponding time of data resource request is mainly concentrated within 20ms, with good efficiency.
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