This design is of intelligent electric power security lock and its key based on the new generation SoC TLSR8253, which supports Bluetooth LE 5.0 technical standard. The system is mainly composed of intelligent electronic key, intelligent passive lock, Bluetooth handset and management center. Intelligent passive locks can be opened with powering by electronic keys, and can retrospectively manage keys and users, bind personnel identity, control the power of opening and closing, improving site safety and enhancing the manageability of assets.

The beautification effect design method of the medical beauty industry mainly deals with the texture of the 3D face model, including texture local processing and texture overall processing method. In this paper, two new methods are proposed for texture local processing. One is the real-time texture local repair method based on fast marching method, the other is the ROI texture fusion method based on pixel extraction; the overall processing method for face-finished texture is lacking. A defect of model whitening effect is proposed, and an improved gamma transform texture pixel enhancement algorithm is proposed.

Data authentication is an efficient way to enhance the security of data transmission, especially for the resource-limited terminal devices in edge computing system. Authentication through physical layer channel characteristics is a lightweight method compared with that based on cryptography. With the popularity of deep learning, this paper proposed a discrete random convolutional neural network applicable for the channel matrix, which extracts more feature information in convolution step without increasing the required memory by discrete random movement of the convolutional kernel. It’s suitable for protecting the data transmission between micro terminals in edge computing.

This paper studies EQ4H engine oil pan. Finite element method and boundary element method are utilized to calculate and predict the vibration and noise radiation of the oil pan. Based on the analysis results, the oil pan is optimized and redesigned. By comparing the vibration and noise performance of the oil pan before and after optimization, the effectiveness of the optimized design is verified.

This paper designs a comprehensive online management system for smart exams, which is based on B/S mode. It uses SSM framework and Maven to manage project structure. The system manages different user roles in different ways. The management system is a software for managing the online integration of exams. It includes processing to optimize the data generated by the software and record the data in real time. The system has a large number of questions, can automatically generate test questions, and can collect and record the wrong questions. Help users consolidate incorrect knowledge point information. The system interface is simple and generous, and the operation is simple.

With the rapid development of the time and technology, the teaching mode of applying universities is gradually changing. The topic studied in this paper is to flip the classroom. Flipping the classroom as an emerging teaching model is gradually being used by colleges and universities. The new teaching method has subverted the traditional teaching method. Its main practice is to enable college students to fully prepare before class and to carry out pragmatic and effective practice activities in the class. This is in order to consolidate the learning content as well as to achieve more efficient learning.

For rural reasonable logistics center site selection, combined with the characteristics and conditions of the rural road network in rural areas of logistics, based on Python hierarchical clustering algorithm and implementation of K-means clustering algorithm, established a logistics center selected rural road network reality Address model. Clustering points need to be positioned. Firstly, the number of suitable initial cluster centers is determined by hierarchical clustering; then, the number of selected initial cluster centers is used, and the K-means algorithm is used to cluster clusters based on Euclidean distance similarity. Iterative clustering is completed after three actual iterations. As a result, the cluster center is three logistics centers, and the problem of visualizing the location of the rural logistics center is realized. Finally, an example is given to verify that the method of solving the location problem of rural logistics center is feasible.

The ship with sea background SAR imaging simulation technology has a great significance for the detection and identification of the ship with sea background target and the design and verification of the SAR system. In order to improve the fidelity of the ship with sea background SAR simulation image, this paper constructing a dynamic sea surface model, combined with the ship's three-dimensional model and electromagnetic scattering model, the signal-level SAR imaging simulation of the sea-ship composite scene is carried out, and the SAR simulation image with high fidelity is obtained, and compared with the simulated images in the static sea scene, it intuitively reflects the realistic degree of SAR simulation images in dynamic sea scenes and can provide help for ship target detection and recognition in sea clutter background.

For the randomness of the initial deployment of sensor nodes and the exhaustion of node energy during network operation, the problem of covering holes may be generated, the coverage repair strategies for different holes shapes are proposed. Firstly, the holes polygons formed by static nodes of randomly deployed heterogeneous wireless sensor networks are classified. Secondly, according to different polygon types, different repair strategies are adopted to determine the location of virtual repair nodes. Finally, according to the distance between the virtual repair node and the mobile node, the relation function of energy threshold value, and the movement of the mobile node with finite distance, the covering cavity is repaired. Simulation results show that the coverage is improved by adopting different repair strategies according to different holes types.