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State of Charge Estimation for Off-Grid System Under Two Charge Controller Using Combination Methods
Waleed Karrar,
Zhen Zhang
Issue:
Volume 2, Issue 1, June 2018
Pages:
1-8
Received:
28 June 2018
Accepted:
9 July 2018
Published:
26 July 2018
Abstract: The state of charge (SOC) estimation plays important role in the battery energy storage system (BESS). Nowadays many semiconductor companies are paying more and more attention and investment to support many researchers to implement the state of charge for the batteries storage. the key to optimize the batteries storage is determine SOC value based on accuracy methods. a number of brief methods for SOC determination have been studied and compared with traditional methods the adaptive methods shown precise result because didn’t consider the dynamic effect of the batteries. In this paper, we use combination methods to estimate the SOC for lead-acid battery storage under two charge techniques namely Maximum Power Point Tracking – Plus Width Module (MPPT- PWM) when considering the effect of voltage drops on the estimation of SOC. The model uses the coulomb counting as an algorithm to determine the SOC and set it as a target in the backpropagation function in artificial neural network in MATLAB program (R2016a 64-bit (win64)). The simulation results show that the model is very precise to estimate the SOC in realistic operation.
Abstract: The state of charge (SOC) estimation plays important role in the battery energy storage system (BESS). Nowadays many semiconductor companies are paying more and more attention and investment to support many researchers to implement the state of charge for the batteries storage. the key to optimize the batteries storage is determine SOC value based ...
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Legibility Study Based on Virtual Traffic Scene
Zhang Junyou,
Li Sixian,
Chen Na
Issue:
Volume 2, Issue 1, June 2018
Pages:
9-14
Received:
27 June 2018
Accepted:
9 July 2018
Published:
30 July 2018
Abstract: The virtual reality is applied to the study of drivers' visibility in traffic scene, which helps to study design specifications effected by the virtual visual, and to provide basis for decision making to improve the fidelity of virtual scene. Various objective and subjective factors are analyzed which affect driver's visibility during their driving, the visibility evaluation system is built which impacts the virtual traffic legibility, and a virtual traffic scene is built with the use of software 3ds Max. The drivers are invited to do some driving simulation experiments, fill out questionnaires, and then with the help of spss16.0 software for the experimental data analysis, and do some visual changes based on the results of the questionnaire related. The experiment is repeated twice to get the best visual scene; and finally an legibility evaluation model is established based on the improved integrated transport scene. Some comprehensive evaluations are made about three sets of virtual traffic visibility scene which provides a reference basis for the future establishment of a virtual traffic scene. According to the validation on the experimental data of questionnaire and model, the analysis on influencing factors about the virtual traffic scene legibility is resulted: roads and marking, signage, landscaping, pedestrian and bicycle, maps and textures, scale, age, etc., all of which set a greater impact on legibility. The modified experiences on perspective, textures, lighting and shading effects, as well as related models' color, the legibility is improved significantly, but the effect of the interaction between the various factors cannot be ignored. Compared to the original value, the secondary questionnaire is more satisfied. Establishment and optimization of the virtual scene have a very important reference to the visual design of virtual traffic and road transport facilities.
Abstract: The virtual reality is applied to the study of drivers' visibility in traffic scene, which helps to study design specifications effected by the virtual visual, and to provide basis for decision making to improve the fidelity of virtual scene. Various objective and subjective factors are analyzed which affect driver's visibility during their driving...
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Design of AGV 3D Real-Time Simulation Control System Based on Wireless Network
Sun Hui,
Yu Hongfei,
Nie Qixuan,
Wang Manfei,
Yan Yanfei
Issue:
Volume 2, Issue 1, June 2018
Pages:
15-20
Received:
28 June 2018
Accepted:
9 July 2018
Published:
30 July 2018
Abstract: For most of the AGV superior control system is planar two-dimensional, poor visibility and lack of equipment operating efficiency statistics, A three-dimensional AGV simulation control system based on wireless communication and Flexsim logistics simulation software is proposed.. Through the socket socket connection zigbee wireless transmission module serial port and Flexsim software completes the data communication between the processes, thus establishes AGV and Flexsim data communication. Build the 3D system simulation model of AGV and write the control algorithm through Flexsim. At the same time, call the SQL database data to complete the real-time simulation and analyze the running status in real time. Mainly studied the data communication interaction between the AGV wireless communication module and Flexsim, using the AGV of the college laboratory to conduct field tests. The results show that the design program basically achieves the expected functions and effects.
Abstract: For most of the AGV superior control system is planar two-dimensional, poor visibility and lack of equipment operating efficiency statistics, A three-dimensional AGV simulation control system based on wireless communication and Flexsim logistics simulation software is proposed.. Through the socket socket connection zigbee wireless transmission modu...
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Application of Support Vector Machine in Bus Travel Time Prediction
Zhang Junyou,
Wang Fanyu,
Wang Shufeng
Issue:
Volume 2, Issue 1, June 2018
Pages:
21-25
Received:
28 June 2018
Accepted:
12 July 2018
Published:
1 August 2018
Abstract: The travel time between bus stops has obvious characteristics of time interval distribution, and the bus is a typical space-time process object, and its operation has a state transition. In order to predict the travel time between bus stations accurately, a support vector machine (SVM) algorithm is proposed based on the measured travel time between bus stations. Through a large number of GPS data in different periods of time for a reasonable classification summary bin selected the appropriate kernel function to verify. The algorithm is verified by the actual operation data of No. 6 bus in Qingdao Economic and technological Development Zone. The results show that the results of support vector machine model operation are basically in agreement with the actual measured data, and the accuracy is relatively high, and it can even be used to predict bus travel time.
Abstract: The travel time between bus stops has obvious characteristics of time interval distribution, and the bus is a typical space-time process object, and its operation has a state transition. In order to predict the travel time between bus stations accurately, a support vector machine (SVM) algorithm is proposed based on the measured travel time between...
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Modeling WordNet Type Thesaurus for Uzbek Language Semantic Dictionary
Matlatipov San’atbek,
Aripov Mirsaid,
Abdurakhmonova Nilufar
Issue:
Volume 2, Issue 1, June 2018
Pages:
26-28
Received:
26 June 2018
Accepted:
13 July 2018
Published:
9 August 2018
Abstract: These days creating the corpus of texts for Uzbek language, creating and developing linguistic databases, search-engine systems – are one of the crucial tasks of computational linguistics. Particularly, electronic dictionary-thesauruses, semantic dictionaries are one of them. Dictionary-thesaurus formation structure for Uzbek language, transferring the terminological dictionary into the e-version and implementing rules for establishing semantic relations between words where it gives a chance to establish automation linguistic processes of dictionary-thesauruses, which is the foundation of linguistic databases. Analyzing logical structure of paper-based dictionary thesauruses has given a chance to formalize its structure and creating rules for converting to e-version of dictionary-thesaurus syllables by using predicates language. Descriptors system is suggested in PROLOG language rules set for constructing e-version of dictionary – syllables.
Abstract: These days creating the corpus of texts for Uzbek language, creating and developing linguistic databases, search-engine systems – are one of the crucial tasks of computational linguistics. Particularly, electronic dictionary-thesauruses, semantic dictionaries are one of them. Dictionary-thesaurus formation structure for Uzbek language, transferring...
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Fossil Fuels Non-Consuming Heating, Ventilation and Domestic Hot Water Supplying Integrated System
Zohrab Melikyan,
Siranush Egnatosyan
Issue:
Volume 2, Issue 1, June 2018
Pages:
29-35
Received:
26 June 2018
Accepted:
25 July 2018
Published:
16 August 2018
Abstract: Large use of different kinds of fossil fuels in gas, liquid, solid and other forms for heating, ventilating and domestic hot water supplying of houses and heat generation for industrial purposes, in contemporary conditions creates ecological and economical serious problems, contributes to global climate change and requires big efforts and means, as well as long periods, for implementation of expensive conventional heat supply systems. Mentioned problems become even greater because of systematical rise in prices of fossil fuels. The solving of the problem gets harder because of absence of appropriate technology for accomplishing heat generation and its supply without consuming of fossil fuel. The mentioned disadvantages force to develop new generation of heat production and consumption technologies that operate without usage of fossil fuel and simultaneously accomplishes ventilation and domestic hot water supply of houses. For this reason, the authors of this study have decided to develop a new type of heating, ventilation and domestic hot water supplying integrated system, which does not consume at all fossil fuels. The integrated system realized on example of a residential house with 432 m3 of volume. The study proves energy high efficiency and cost effectiveness of suggested system, as it allows to save 2660 m3 of fossil fuel per season. Comparison of data shows that specific cost of seasonal heating, referred to 1m2 of the building is 2.06 times less than for ordinary system.
Abstract: Large use of different kinds of fossil fuels in gas, liquid, solid and other forms for heating, ventilating and domestic hot water supplying of houses and heat generation for industrial purposes, in contemporary conditions creates ecological and economical serious problems, contributes to global climate change and requires big efforts and means, as...
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Resistance Spot Welding Parameters Optimal Selection for Automotive Steel Plate
Tang Ke,
Liang Cui,
Zhou Ping
Issue:
Volume 2, Issue 1, June 2018
Pages:
36-41
Received:
26 June 2018
Accepted:
19 July 2018
Published:
18 August 2018
Abstract: In welding workshop, multi plate lapping is used to resistance welding usually, but so many uncertainty factors are there in welding process. In order to use less test times to meet production requirements and solve the welding nugget problem of multilayered panel lap, the optimizing welding parameter for 3 layer of low carbon steel plate with thickness of 0.8 mm + 1.4 mm + 1.8 mm was found in this paper. Experimental results show that: the welding current 9.6/8.8/11.1 KA, welding time 5/19/5 CY, electrode pressure 3 kn is suitable for 3 layer of low carbon steel plate with thickness of 0.8 mm + 1.4 mm + 1.8 mm, multiple-pulse welding parameter is appropriate for multilayered panel lap, and diameter of nugget on each layer can achieve 6mm.
Abstract: In welding workshop, multi plate lapping is used to resistance welding usually, but so many uncertainty factors are there in welding process. In order to use less test times to meet production requirements and solve the welding nugget problem of multilayered panel lap, the optimizing welding parameter for 3 layer of low carbon steel plate with thic...
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