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Apr 23, 2023Open Access
Real-time monitoring of temperature is required during the calcination process of Nixing pottery. In order to solve the problem of unattended temperature checking, this thesis focuses on the use of the STC89C52 microcontroller as the core of the hardware, with the DS18B20 temperature sensor for real-time temperature collection, through the mobile phone APP to simulate the real-time monitoring of the pottery kiln temperature, and to make the corresponding historical data line graph. When the coll...
Oct 24, 2022Open Access
Artificial electric field (AEF) algorithm is a newly developed heuristic intelligent optimization method, which has the advantages of simple implementation process and less control parameters. So far, it has been applied in some engineering and scientific research fields. For these reasons, AEF algorithm is used to address six benchmark functions to evaluate its search ability. After that, AEF algorithm is combined with BP neural network to find the optimal initial weights and biases, and then t...
Jun 17, 2022Open Access
Rolling bearings are the most prone to failures in mechanical equipment, and the vibration signal is unstable. Therefore, according to this characteristic of the bearing, the time-frequency characteristics of the bearing vibration signal are adaptively extracted. This paper proposes a wavelet transform-based method. And the bearing fault diagnosis method of convolutional neural network realizes intelligent diagnosis. Firstly, the fault signal of the rolling bearing is converted into a wavelet ti...
Mar 31, 2022Open Access
Design and make a high efficiency, low-cost citrus picking robot with STM32 chip as the main controller using tracks instead of tires, using a multi-core design, which can realize the robot walking automatically, the camera automatically looking for citrus, the image information recognized by the camera is transmitted to STM32 through the serial port, and STM32 controls the robot arm picking citrus according to the returned information, and after successful picking, the tangerine will be put int...
Jan 21, 2022Open Access
This study deals with the multi-agent linear system, which is a more realistic and accurate discrete model with disturbance terms. Based on linear matrix inequality technology and sliding mode control, we give the forward-feedback control term. Furthermore, sufficient conditions for the closed-loop system are established by Lyapunov stability theory. Results of simulation show that the proposed method is effective.
Dec 15, 2021Open Access
With the rapid development of the automotive industry, how to save energy and reduce emissions has also become a concern. New electric vehicles have become the key to solving the problem. As the core component of electric vehicles, lithium batteries have an important role in their service life and operating conditions for the mileage and performance of electric vehicles. Therefore, in order to ensure the safe and effective operation of electric vehicles, it is of great significance for the resea...
Dec 15, 2021Open Access
With the development of the country and the continuous increase of GDP per capita, people enjoy life more and more, and at the same time pay more and more attention to the quality of the living environment around them, and factors such as changes in temperature and humidity in the air and the size of dust concentration will increase. In order to ensure people’s health and quality of life, the research on detection system of automobile interior environment is of great significance. The detection ...
Aug 09, 2021Open Access
Table lamps have long been one of the necessities of people’s life and work, as they appear and are used very frequently in household lighting equipment. Table lamps provide the right amount of light for people to work and study in their daily lives. Compared with the general traditional desk lamp, intelligent desk lamps provide a more comfortable lighting environment for people to read, work and study. The paper firstly analyzes the system scheme of the intelligent desk lamp and completes the h...
Jan 04, 2021Open Access
In this paper, the front bumper of a certain model was simulated and analyzed in low-speed frontal collision. HyperMesh software was used as the pre-processor, LS-DYNA was submitted for simulation calculation, and HyperView was used as the post-processor to view the output results, so as to analyze the performance of the automobile front bumper in low-speed frontal collision. At the same time, the influence of different beam thickness on collision performance is compared under the same condition...
Jul 24, 2020Open Access
This article studies the dynamic voltage restorer DVR (Dynamic Voltage Restorer). It is a design and research aimed at the insufficient voltage stability of modern power grids, mainly used to solve the problem of voltage sag. In this paper, the working principle of DVR is studied, the whole control scheme is proposed, and the circuit design is carried out. The common compensation strategies are summarized and compared. The main circuit of DVR is analyzed in detail, and the structure of the modul...
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