Proceedings of the 2018 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2018)

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150 articles

Rotor Position And Velocity Estimation Of SMO Based On PLL

Xueliang Ren, Mingjiang Wang, Jun Chen
In this paper, a sliding mode observer (SMO) based on PLL and rotary coordinate is designed for sensorless control of permanent magnet synchronous motors (PMSM). By the proposed SMO algorithm, the control system has a better dynamic performance?And the rotor speed error, the estimated speed, the rotor...

Application of the Integration of the Internet of Things and Big Data

Yingli Wang
In order to perfectly integrate the Internet of Things (IOT) and big data, the way how big data influences the construction of an open IOT ecosystem was discussed and the significance of big data for the Internet of Things was set forth. Also, the system framework of an open IOT ecosystem with advanced...

Research on the Relationship between Iron and Steel Production and Air Quality in Beijing - Tianjin - Hebei Region ——Air Quality in Beijing and Tianjin as the Goal

Jian Li, Zefan Jin
This paper mainly studies the effects of monthly production of iron and steel in eight cities in Hebei on the air quality of Beijing and Tianjin. First, this paper uses 10 cities to study whether iron and steel production has an impact on air quality, and the conclusion is that iron and steel production...

Numerical Simulation and Analysis Optimization of Cast-In-Place Process of Non-Bearing Wall Based on CFD

Jiabin Ma, Weiguang Xiong, Luhang Zhao, Jiajie Wang, Shihang Wang
This article takes the non-bearing wall cast-in-place process as the research object, making comprehensive use of CFD analysis methods, CAE technology, ANSYS Gambit and Fluent software. the flow field simulation was carried out in the mixing section and the grouting process in the pouring wall process....

Application of Virtual Reality Technology in Physics Experiment Teaching

Huazhong Wang
To explore the application of virtual experiment in physics teaching, the virtual reality constructivism, hybrid learning theory, interaction theory and the used techniques were analyzed. Then, the whole process of virtual experiment system from the design to the realization was explained in detail,...

The Design of Temperature and Humidity Automatic Control System for the Supermarket Fruits and Vegetables

Biqing Li, Zhao Li, Hongyan Zhang
Temperature and humidity automatic control system is widely applied in various fields more and more gets the welcome of people, because it can greatly reduce the human resources, and it has the characteristics of highly efficient and accurate. the temperature and humidity automatic control system based...

Design and Development of Mobile Academic Platform in Universities

Yunju Chang, Lili Hong, Guang Su, Xuesong Leng
Under the background of the less connection between teachers and students in universities and the rapid development of the Internet, and according to the needs of students and teachers, the topic was to design and develop university research and academic platform prototype based on Android. First of...

Research on Model of Feasible Timing of Traffic Light for Intersection Control

Jiangqun Wang, Ning Cao, Guozhong Yao
Traffic lights play a significant role in regulating traffic flow. Due to the use of stationary phase and fixed cycle in traditional systems, it is not feasible to adjust the phase time to meet real-time traffic demand, resulting in delays, inefficiencies and other losses for traffic participants. This...

Scheduling Optimization Method of Single-line Customized Bus

Yunwei Li, Xuedong Yan, Wen Shao
Customized bus, a new-type traveling mode in China, now has become the first choice for part of city residents due to its quality services. However, customized bus in China is still at the initial stage of exploration. Its route design and vehicle scheduling have not yet formed a unified methodology....

Optimization of Sight Clearance Area Design at Uncontrolled Intersection

Wen Shao, Xuedong Yan, Yunwei Li
Since the lack of traffic control measures, it is necessary to provide the sufficient intersection sight distance to ensure the safety of driving at uncontrolled intersections. At present, the domestic and foreign design standards and specifications concentrate more on the dimensions of square edges...

Effect of Collision Parameters on the Pedestrian Thoracic Dynamics Response and Injury

Wenjun Liu, Aowen Duan, Kui Li, Liangfei Fu, Hongchun Jia, Zhiyong Yin
To investigate the effect of collision parameters (impact area of hood, vehicle velocity, walking speed of pedestrian, pedestrian gait and pedestrian orientation) on the dynamics response and injury of pedestrian thorax by combining the merits of Finite Element (FE) method and analytical method of Multi-body...

Optimization for Train Schedules of Full-length & Short-turn Routing Mode in Urban Rail Transit

Yansong Liu, Baohua Mao, Mengna Li
The train schedule is the basis of operation organization in urban rail transit. According to the properties of the full- length & short- turn routing mode in urban railway transit, a multi- objective nonlinear mixed integer programming optimization model of train shedule for a single transit line is...

Research on Financial Risk Evaluation of Railway Logistics Based on BP Neural Network Model

Mengna Li, Xiangfei Yang, Congcong Xin, Jie Zhang
This paper analyzes the risk factors of developing logistics finance business in railway enterprises, identifies the risks from two aspects of external risk and internal risk, and constructs the evaluation index system of railway logistics financial risk. Based on the analysis of BP neural network structure,...

Safety Evaluation of Road Tunnel Based on Fuzzy AHM

Qiming Yao, Shuo Liu
In order to improve the operation safety of road tunnels, a new evaluation method of safety evaluation was proposed. Firstly, the index system was established by comprehensive considering all kinds of traffic safety attribute, including road engineering, traffic safety facility, traffic flow condition...

Construction Method of Salar Traditional Settlement

Haichen Zheng, Wenyu Zhao, Hongbin Ma
The Salar nationality believes in Islam, and the clansmen mainly live in Xunhua Salar Autonomous County of Qinghai Province and Dahejia, Baoan nationality and Dongxiang Salar Autonomous County, Jishishan, Gansu Province. The construction of many traditional settlements of the Salar nationality is ingenious...

Design of Indoor Real-time Positioning on Embedded Platform

Xin Shu, Chang Liu, Haoyuan Cai, Tianyang Cao
Indoor positioning is becoming a very popular research direction in recent years. In this paper, we realize real-time trajectory calculation through the fusion of inertial and vision. We have two experiments in different environments and we find that the algorithm's error is below 50% of pure inertial...

The application of the electrical automation in power system

Laiyun Hou
On the basis of introducing the development of electrical automation, this paper detailedly analyzes the application of computer technology and PLC technology, which are specific technologies of electrical automation used in the power system. The purpose of this paper is to make people have a deeper...

Research on Train Over-taking Organization of Urban Rail Transit

Junjun Liu, Baohua Mao
Study on train over-taking organization of urban rail transit and propose calculation methods of local train's waiting time as well as the length of the cross section. Combining with actual operation of urban rail transit, the effects of departure interval, tracking interval and the maximum operating...

Installation and Docking Technology of Control Module for Subsea Production System

Lan Zhang, Yongzhe Li, Yonghong Meng, Liquan Wang, Peng Jia
The docking technology of the subsea production system control module (SCM) is a key part of installation. If the docking accuracy is not reached, or poor stability when docking, the butt joint between the hydraulic joint and the electrical joint cannot be accomplished, may also make the subsea control...

The Study of Cognitive Radio Prediction Based on Big Data

Haoxiang Sun, Changxing Chen, Yunfei Ling, Jiyao Huang, Xiangyang Lin
With the advent of the age of big dat, the application of big data to predict is a powerful way to solve various problems. However, for the increasingly tense spectrum resources, the prediction of cognitive radio based on big data is an inevitable trend. In this paper, the advantages of big data prediction...

The Influence of Tail Fitting of Truck Effect Samples on Maximum Truck Effect in Reference Period

Junli Liu, Jinhao Zhang, Lei Wang, Wencheng Yu
In order to study the influence of the tail of the fitted sample distribution curve of vehicle load effect on the maximum value distribution in the reference period of vehicle load effect, multi-model normal distribution curve, straight line, parabola, exponential curve and POT model based on Pareto...

A Compact Bias T Used for Front-end of Millimeter Imaging System

Baohua Yang, Huajie Zou, Jungang Miao
As millimeter wave (MMW) electronic technologies have matured, MMW receiver research is also in the rapid development which includes front-end and frequency synthesizer. They all needed isolation between RF and DC bias. The good design bias T which can realize high isolation between DC bias source port...

Research of Theoretical Model and Transmission Efficiency of ZC1 Worm Dynamic Lubrication

Dongyue Qu, Chunyu Zhang, Jianan Xu, Rilai Zhang, Shengxi Zhang
The dynamic pressure lubrication theoretical model of worm gear ZC1 is established, the formula of hydrodynamic lubrication discretization for the calculation of the mixed friction efficiency of circular cylindrical worm and worm pair is achieved and the formula and process for solving the hybrid friction...

The Control System of 100kv High Voltage Power Supply

Shengmin Pan, Peng Fu, Yiyun Huang, Baocan He, Hulin Feng, Denghu Wang
It described a control system of 100kV high voltage power supply. It used PC control and monitor the power modules via fiber optic. By testing, proved the control system is a good isolation and provides stability control system. By this way, we can remote control the power modules.

Research on Educational Video Retrieval Method Based on Audio Transcription Technology

Muqiang Zhao, Wenxi Zheng, Yan Ye, Min Wu
In the modern education platform, there are many problems, such as insufficient retrieval accuracy and single retrieval process, this paper conducts an in-depth investigation and analysis of the features of educational videos, combined with the cutting-edge audio transcription technology and text processing...

The Fault Diagnosis of Smart Substation Equipment Based on Fuzzy Petri Nets

Shaowen Wan
This paper introduces fault diagnosis method and its mathematical descriptionthe of fuzzy Petri nets, including the basic concept and rule representation. On the basis of the original fuzzy Petri net reasoning decision, the transition threshold judgment is proposed. This paper presents a fault diagnosis...

On-line Monitoring of Ethanol Concentration during Biomass Fermentation.

Ranran Zhang
For fermentation process large time delay, nonlinear and distributed parameter and disturbance, to combine neural networks and fuzzy control, neural network has the ability to learn, to modify control rules, the proposed neural network controller, realize online monitoring of biomass in the fermentation...

Application of Electronic Chart Display and Information System in the Teaching of Nautical English

Xiandong Zhao, Yonggang Zong
The emergence of Electronic Chart Display and Information System (ECDIS) is a revolution in the field of navigation. With the improvement of ECDIS's standardization and its further promotion, the research of ECDIS in the world is also deepening. On the basis of the understanding of the standard of electronic...

The Study of SAR Image Change Detection Algorithm Based on the Difference Graph Fusion

Chunhua Fu, Xiaojing Wang, Lijun Zhang, Liying Qiao
SAR image change detection technology is the two picture in the same area, the different time periods for SAR image detection, quantitative and qualitative analysis of the change area, thereby gaining interest area change a technology of information. SAR image change detection technology is of great...

A Novel Controller Dynamic Linearization-Based Model Free Adaptive Predictive Control for A Class Of Discrete Nonlinear Systems

Danna Wang
In this work, a novel controller dynamic linearization based model free adaptive predictive control algorithm (CFDLc-MFAPC) for a class of discrete nonlinear system is proposed. This method introduces dynamic linearization parameters of ideal controller based on dynamic linearization technology, and...

Research on Promotion of Emergency Rescue Strategy of General Aviation for Earthquake Disaster in Mountain Area

Liang Zhang
This paper analyzes the influencing factors of earthquake emergency rescue of general aviation in mountain area, the relevant knowledge of operational research is applied, the influencing factors of emergency rescue are analyzed and evaluated by analytic hierarchy process; according to the analysis results,...

[WITHDRAWN] A Relevance Vector Machine Based on Gaussian Mixture Kernel

Mi Tong, Fang Liu, Quan Qi, Wangchen Qin
Relevance vector machine (RVM), a sparse Bayesian kernel method in machine learning, has been well-known for its sparsity and probabilistic predictions. Like other kernel methods, it use the kernel functions to map the input instances into higher dimensional space for problem simplicity. At present,...

A Safety-Security Integrated Analysis Approach

Xinyu Sun
A large number of computer, communication and control technologies are applied in train operation control system, which brings the internal and external security risks to the urban rail traffic, especially under the background that security incidents of industrial control system occur frequently, security...

Centering on the Passengers — the Airline Internet Strategy Analyses

Qi Qi, Zhao Zhang, Zhijun Li
Based on the analysis of the the airline Internet level at this stage , the paper puts forward that "Centering on the passengers" is the basis of the airlines' Internet. For airlines, the final result of the Internet must be realized human-human interconnection, human-machine interconnection, human-material...

Cluster analysis of container station based on container application data

Shilin Li, Lingxi Zhu, Jun Liu, Qingying Lai, Xu Wang
With the increase of the number of railway container manufacturers, the average maintenance cost of each factory's container is uneven. In order to evaluate the quality of the container, it is necessary to do cluster analysis of railway container stations, thus classify the container by the different...

Short-Term Traffic Flow Forecasting Considering Upstream Traffic Information

Fei Kou, Weixiang Xu, Huiting Yang
Timely and accurately short-term traffic flow forecasting is very important in the application of the Intelligent Transportation System (ITS). In this paper, an improved k-nearest neighbor (K-NN) model considering upstream traffic information was proposed to forecast short-term traffic flow. In this...

Evaluation Index System of Input-Output Benefit of Distribution Network Considering Sub-Voltage Level

Jian Tan, Wei Hu, Hu Li, Xue Li, Pengcheng Zhou, Yan Yang, Ming Zeng
Under the background of the new electricity system reform, the power grid investment players have more economic requirements for Distribution Investment, and the economic and social benefits brought by Distribution Investment are paid more attention. This paper presents a model considering voltage level...

Structural Topology Optimization Research for A Six-DOF Space Robotic Manipulator

Songbo Deng, Yan Wang, He Cai, Ke Li, Fan Yang, Yanbo Wang
This paper focuses on the lightweight design of the 6-DOF space manipulator designed and assembled independently. The mass ratio of the arm rod is large which matters a lot on the positioning accuracy of the manipulator end. The light weight analysis is carried on to the arm rod of the space robotic...

Research for control method of brush-less DC motor using bi-directional quasi-Z-source converter in EVs

Li Zhu, Mingwei Ren
A novel brush-less DC motor, with two drive methods based on bi-directional quasi-Z-source converter is studied in this paper. The parameters of quasi-Z-source network are respectively designed in square-wave and sine-wave drive methods. The BLDCM control system that applies to micro electric vehicle...

Anti-maloperation Study of Zero-sequence Directional Protection for Three Circuits on the Same Tower

Yaru Dong, Hui Huang, Jieru Dong
Based on the limitation of zero-sequence voltage compensation of traditional zero-sequence directional protection principle, an improved anti-maloperation protection strategy is proposed. First of all, by analyzing the characteristics of zero-sequence component, zero-sequence protection principle and...

Analysis of Coil Misalignment in MCRWPT System

Junfeng Yang, Xiaodong Zhang, Dandan Liu
Coil misalignment often takes place in wireless power transfer (WPT) systems. It may result in decrease of transfer efficiency and system instability. In this paper the mutual inductance model and the circuit equation of Magnetic Coupling Resonant WPT (MCRWPT) are established firstly. And the influence...

Failure Analysis on Phase B Adjustable Mechanisms of 220KV Lateral 2801 Switch in Da Yuan Substation

Yupeng Xie
In this paper, the failure of the switch operation caused by a screw breaking of adjustable mechanisms is analyzed. A number of tests, such as macroscopic examination, chemical composition analysis, metallographic test, scanning electron microscope analysis and hardness test, were carried out on the...

Center Research on Insulation Repair Robot Based on STM32 Microcomputer

Zhongxiu Xiao
With the continuous expansion of the size of China's power grid, the traditional inspection line has been difficult to meet the requirements of the future power system, research and application of inspection robot have been become necessary. Instead of manual patrol line, the inspection robot not only...

Research on Simulation Method of Rigid-Flexible Coupling Gear Transmission Based on MFBD

Zheng Zhang, Guangbin Feng, Huagang Sun
In order to analyze the dynamics of the gear transmission more efficiently, this paper builds a three-dimensional modeling software Creo, finite element software Hypermesh and dynamics simulation software based on MFBD (Multi-Flexible-Body Dynamics) technology. RecurDyn established a multi-flexible body...

Overview of Carrier frequency concealment Radar Signal Design

Guanyi Chen, Limin Liu
In the increasingly fierce modern electronic warfare, it is crucial to hide the relevant parameters of the radar signal itself. In this paper, the background and significance of radar signal design are described. The development and current status of radar signal design are studied. The design status...

Image retrieval based on ResNet and ITQ

Guijun Wang, Baohua Qiang, Xianchun Zou, Jinyun Lu
In recent years, more and more hash learning methods have been applied to solve large-scale vision problems. It has been shown that learning hash function by using supervised information can boost hashing quality. The state-of-the-art image retrieval hashing methods based on visual features lacks of...

The Optimal Design and Realization of Survey Vessel Communication Power Supply System

Hongyuan Liu, Anguo Wu
This paper briefly analyzes the status quo of uninterruptible power supply of the survey vessel communication system, expounds the composition of communication power supply, principles and functions of uninterruptible power supply, and puts forward the optimal design scheme of the existing power supply...

UWB Based Integrated Communication and Positioning System for Multi-UAVs Close Formation

Shuqiang Cao, Yongbin Zhou, Dong Yin, Jun Lai
Multi-UAVs close formation is the hot spot of current research. UWB (ultra-wide band) is very feasible to be applied to UAV relative positioning. In this paper, we propose to apply UWB technology to UAV relative positioning for multiple UAV close formations and consider combining UWB positioning with...

Study on Vehicle Location in Road Traffic Accident Based on Surveillance Video and Vanishing Point

Aowen Duan, Wenjun Liu, Hongchun Jia, Zhiyong Yin
To solve the problem that it is difficult to obtain the accurate locations of target objects directly by the surveillance video in Road Traffic Accidents, this paper presents a method of measuring the relative position of vehicles on the road surface by using vanishing point principle to mesh the surveillance...

Influence of Pedestrian Size and Vehicle Type on the Pedestrian Thoracic Dynamics Response and Injury

Wenjun Liu, Aowen Duan, Kui Li, Liangfei Fu, Hongchun Jia, Zhiyong Yin
To investigate the influence of the pedestrian size and vehicle type on the dynamics response and injury of pedestrian thorax by combining the merits of Finite Element (FE) method and analytical method of Multi-body (MB) system, the FE vehicle models and the MB pedestrian dummies were used to coupling...