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In order to ensure the stable operation of the power grid, this paper aims at the modeling of the integrated information system of the photovoltaic power plant, and the model of the PV module is divided into physical characteristics. In order to ensure the stability of the power grid, Model and external characteristic model. The PV module model based on the physical characteristics is based on the...
Capacity is defined as the maximum traffic flow passing through a section of a road per hour, which is not related to the length of the link or the traffic characteristics of the upstream and downstream intersections. The traffic condition cannot be accurately expressed when the road is congested. The concept of Link Capacity was proposed in the paper, and the Link Capacity calculation model was established...
For the collection of massive complex information, the collaborative filtering system can work as a highly efficient information screening tool. It can recommend reasonable information reserve with multi angles according to the living service facility information of the scenic spots. The collaborative filtering system can collect information and forecast rating results based on users' preference....
With the rapid development of the business and the continuous improvement of the level in SGCC, the security research in the mobile field has been paid more and more attention. Although mobile work terminals can improve the efficiency of field operations, but a large number of mobile terminal access, leading to the terminal management difficult to increase, security has been greatly challenged. Therefore,...
With the development of China's economy, the transformation of the terminal energy consumption structure has been put on the agenda. For this reason, the government proposes the Electric Power Alternative plan to promote electricity consumption and ban the consumption of traditional fossil energy. In view of the existing power instead of the terminal energy evaluation method of low efficiency, low...
According to the needs of users, Home Service Robots gradually work outside. As a result, new requirements for the detection and recognition performance of Home Service Robots are put forward. Compared with indoor environment, outdoor environment is more complex, which brings difficulties to detect objects. But extracting features by Histogram of Oriented Gradient (HOG) method can not work well in...
The natural disasters affecting railway are characterized by universality, frequency and variety in china. These events can suddenly cause a greater negative impact on the order of rail transport organizations in a short time. The abnormal circumstances of network node or network range will pose a threat to the safety and efficiency of rail transport. On the basis of analyzing the causes of the problem...
Traditional PLC system in the event of system failure, there is no perfect mechanism to ensure the safety of control, the safety PLC based on heterogeneous dual-processor redundant structure can meet the requirements of industrial control for equipment and personnel, improve the reliability of industrial control. In this paper, according to the operation requirements of safety PLC based on heterogeneous...
In the process of detecting the fiber quality, the effect of optical collimation is directly related to the measurement results. The collimation of optical path can be realized by manual adjustment, but it takes one and a half hours to complete collimation and measurement, and the average standard deviation of the measured divergence angle is 0.0712. In order to solve the problem of manual adjustment,...
The battery management system is the key part to ensure the reliable and safe operation of battery. However, researches today mainly focus on the estimation of battery states and the key functions of battery management system, rather than the development platform from perspective of engineering practice, and this highly limits the application of control algorithms in battery management system. This...
With the development of cultural level, the traditional tourism has not meet the needs of the development of the people. The development of traditional tourist scenic areas has been affected by the technology and the cloud computing, so we need continuous innovation and development, it can bring the new experience of the tourist. In this paper, from the angle of tourist, scenic, government, we will...
With the rapid incensement of personal vehicles, urban traffics congestion is now a prominent problem in many major cities in China. Electronic Toll Collection (ETC) is an efficient solution for traffic jaw problem. This paper introduces an embedded system designed for Dedicated Short Range Communications (DSRC) standard based ETC system of China. In this system, a STM8L151G micro controller was used...
At present, the energy situation is more and more serious, improve the efficiency of energy use, improve the energy structure, adhere to sustainable development has become the primary topic of social development. Cogeneration is a cascade of energy use, with significant energy-saving potential, and gradually become a regional heating system, one of the main forms of heat. In this paper, the homogenization...
Attendance is an important part of classroom evaluation. This paper develops a university classroom automatic attendance system by integrating two deep learning algorithms MTCNN face detection and Center-Face face recognition. A large number of experimental results show that: (1) The system can record such three violations of classroom discipline for automatic attendance, that is absence, lateness...
In view of the close relationship between insulator fault and surface temperature distribution, a detection method for insulator string is proposed combined infrared image segmentation and artificial neural network, which is based on the analysis of infrared image processing and fault diagnosis of artificial neural network. Firstly, the steel cap and the disk of insulator string are extracted according...
To study the problem of real-time and accuracy of the image retrieval algorithm of embedded system with scale, rotation and illumination. Improved SURF algorithm, which is applied to the binary image feature extraction, improve the real-time performance of the image, the use of LSH algorithm to establish the index of the image feature database, to avoid duplicate feature extraction, the use of LSH...
In order to estimate the attitude angle accurately, improve the accuracy of attitude and heading reference system(AHRS), aiming at larger errors of extended Kalman filter(EKF) in estimating attitude angle, a method based on iterative LM-CDKF algorithm has been proposed to estimate the attitude angle. In the paper, iterative filtering theory and Levenberg-Marquardt method is introduced into the central...
With the increase of the number of photovoltaic grid connected power plants and the increase of capacity, the impact on the protection and control of the grid can not be ignored. The establishment of electromagnetic transient simulation and equivalent calculation model of photovoltaic power station is the basis for studying its grid connection characteristics and its impact on relay protection. The...
How to improve the efficiency of power system stability and the whole system is the main problem facing the photovoltaic power system, based on the real system experiments and the digital simulation platform for the limitations of the study, this article from the photovoltaic power generation system semi physical simulation research of power system simulation software based on the use of advanced...
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