scholarly journals Research on subjective evaluation method of intelligent parking assist system based on typical parking scenario

2021 ◽  
Vol 268 ◽  
pp. 01038
Author(s):  
Bin Lei ◽  
Shuai Zhang ◽  
Rongliang Liang ◽  
Hao Geng
Keyword(s):  
Evaluation Method ◽  
Rapid Development ◽  
Subjective Evaluation ◽  
Evaluation Methods ◽  
Passenger Cars ◽  
Parallel Parking

With the rapid development of intelligent driving technology, Intelligent Parking Assist systems have been widely used. Through analyzing the technical characteristics of the Intelligent Parking Assist system, this article brings up subjective evaluation indicators of Intelligent Parking Assist system from the perspective of consumers' daily use; Practical verification is carried out for three typical parking scenarios including parallel parking spaces, vertical parking spaces and inclined train spaces, thus a set of subjective evaluation methods suitable for Intelligent Parking Assist systems for passenger cars is summarized.

scholarly journals An Analysis of Internet Enterprise Value Evaluation Method Based on ARIMA

2021 ◽  
Vol 2066 (1) ◽  
pp. 012006
Author(s):  
Ling Chen
Keyword(s):  
Evaluation System ◽  
Evaluation Method ◽  
Rapid Development ◽  
Arima Model ◽  
Evaluation Methods ◽  
Corporate Value ◽  
Operating Characteristics ◽  
Enterprise Value ◽  
Value Evaluation ◽  
Internet Companies

Abstract With the rapid development of the times, the Internet has been deeply integrated into various fields, and many Internet companies have emerged at the historic moment, and economic activities such as mergers, reorganizations, acquisitions, issuance and listing, equity swaps, mortgages, bankruptcy and liquidation of Internet companies have also increased frequently. This has led to more and more value evaluation activities related to Internet companies, and the business model of Internet companies is different from traditional companies, so traditional corporate value evaluation methods cannot fully meet the special requirements of Internet company value evaluation. Therefore, we need to establish a sound Internet enterprise value evaluation system, and use more scientific and reasonable evaluation methods to ensure the interests of all parties to the transaction. Starting from the operating characteristics of Internet companies, this article analyzes the characteristics and difficulties of Internet corporate value evaluation, clarifies the effectiveness and limitations of the income method in Internet enterprise value evaluation, introduces the ARIMA model to improve the traditional income method and takes NetEase as an example. This method is applied to practice to verify its feasibility. So as to provide a scientific and reliable reference basis for Internet enterprise value evaluation.

scholarly journals Objective Evaluation of Drivability in Passenger Cars with Dual-Clutch Transmission: A Case Study of Static Gearshift Condition

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Wei Zhou ◽  
Xuexun Guo ◽  
Xiaofei Pei ◽  
Chengcai Zhang ◽  
Jun Yan ◽  
...  
Keyword(s):  
Fuzzy Ahp ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Dual Clutch Transmission ◽  
Evaluation Tool ◽  
Passenger Cars ◽  
Denoising Method ◽  
Fuzzy Matrix ◽  
Predictability Score

This paper is aimed at the problem that the subjective drivability evaluation by experienced test drivers is limited in time efficiency and is of high cost and poor repeatability. In this article, an intelligent drivability objective evaluation tool (I-DOET) for passenger cars with dual-clutch transmission (DCT) is developed and verified by real vehicle testing. First, the signal denoising method and its key parameters, which are suitable for drivability evaluation, are selected based on analytic hierarchy process (AHP) and technique for order preference by similarity to ideal solution (TOPSIS). Besides, combined with the uncertainty characteristics of subjective judgment, a mathematical model of the objective drivability evaluation FARODE (fuzzy AHP-RS based on objective drivability evaluation) is proposed by using the fuzzy comprehensive assessment (FCA) method. The AHP and rough set (RS) method are used to calculate the subjective and objective weights of the drivability evaluation, respectively, and the proportion of subjective and objective weights is determined by the principle of minimum relative information entropy. The fuzzy matrix is built by membership function of the evaluation indexes. Finally, the static gearshift condition focused on by the subjective evaluation experts is taken as a case study. The predictability score is obtained by combining the drivability quantization lever vector, comprehensive weight, and fuzzy matrix. The experimental results indicate that the proposed method is applicable for objective drivability evaluation in passenger cars with DCT.

Research in Geological Environmental Evaluation System of Transmission Line

2014 ◽  
Vol 641-642 ◽  
pp. 1238-1245
Author(s):  
Zi Xia Feng ◽  
Bin Bin Zhao ◽  
Lei He ◽  
Chen Fang
Keyword(s):  
Transmission Lines ◽  
Evaluation System ◽  
Evaluation Method ◽  
Rapid Development ◽  
Evaluation Research ◽  
Planning Period ◽  
Environmental Evaluation ◽  
Life Cycle Design ◽  
Power Construction ◽  
Whole Life Cycle

With the rapid development of electric power construction , transmission lines and the surrounding geological environment influence each other that has become increasingly serious, however, there is not formed yet a set of complete and more scientific geological environmental evaluation system in transmission lines at present. In this paper, on the basis of using the experience of other industries of geological environmental evaluation research , study and put forward the geological environmental evaluation method specifically for transmission lines. Evaluation system is established for transmission lines in planning period and construction period , and also put forward the corresponding evaluation index. The research conclusion can provides theoretical support and maintenance for transmission lines of the whole life cycle design,and it also provides reference in designing transmission lines plan and preventing, and controlling geological environmental problems of transmission lines for the decision-making department.

Research and Evaluation of Bionics Shape Design Based on Cases

2014 ◽  
Vol 551 ◽  
pp. 621-625
Author(s):  
Nan Chu Guo
Keyword(s):  
Genetic Algorithm ◽  
Quantitative Methods ◽  
Evaluation Method ◽  
Evaluation Methods ◽  
Shape Design ◽  
Fuzzy Evaluation ◽  
Ideal Approach ◽  
Comprehensive Fuzzy Evaluation

The paper proposes an ideal approach of shape design by using shape evaluation methods accurately. The paper proposes and tests the comprehensive fuzzy evaluation method using a case of two clips based on genetic algorithm and quantitative methods. By using this evaluation method, the shape details of a product could be improved gradually.

Based on the Fuzzy Multi-Objective People Decision Method of Engineering Bidding Evaluation

2013 ◽  
Vol 671-674 ◽  
pp. 3147-3151
Author(s):  
Yun Na Wu ◽  
Chao Liu ◽  
Mandula Naren ◽  
He Ping Wang ◽  
Jian Chen
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Methods ◽  
Actual Case ◽  
Engineering Construction ◽  
Comprehensive Evaluation Method ◽  
Multi Objective ◽  
Bidding Price ◽  
Weight Method ◽  
Conducting Research

The construction project bidding is a feasible method in engineering transactions and the main competition form of the construction activities under the conditions of the market economy. The bid assessment is an important link of bidding, and whether bid evaluation method is scientific or not, is directly related to the success of the tender. In the engineering construction field, at present the current commonly used evaluation methods are the comprehensive evaluation method and the lowest bidding price evaluation method. Based on fuzzy set theory and multi-objective people decision theory, we introduce fuzzy multi-objective people decision-making evaluation methods. And conducting research to put forward the evaluation index and weight method to determine the bidding decision model. Finally we apply it to actual case to make out the more standardized and scientific bidding evaluation method.

Cab Conceptual Design for the Equipment System Used for Passenger Car Ergonomic Design and Evaluation

2012 ◽  
Vol 215-216 ◽  
pp. 399-406
Author(s):  
Xiao Ming Du ◽  
Jin Dong Ren ◽  
Yong Qing Liu ◽  
Zhong Xian Chen ◽  
Shi Hai Li ◽  
...  
Keyword(s):  
Product Development ◽  
Cycle Time ◽  
Evaluation Method ◽  
Target Population ◽  
Steering Wheel ◽  
Passenger Cars ◽  
Passenger Car ◽  
Packaging Design ◽  
Development Cycle ◽  
Equipment System

Ergonomics is an important validation content in vehicle product development. The traditional evaluation method of ergonomics adopts physical mockups or prototypes, which is very costly, and is inconvenient to modify, and usually cause prolonged development cycle-time. In this paper, in conjunction with enterprise’s requirements, an ergonomic validation equipment system, which has adjustable main parts, was developed. Firstly, requirements were analyzed, and target model cars ranges were determined, and ergonomic contents which can be validated using this equipment were clarified. The packaging characteristic of the passenger car was analyzed, and the reference fiducial marks system used for packaging design were determined. Based on the requirement of occupant accommodation, anthropometries of target population were statistically analyzed. By using revised SAE J1517 H-Point curves models, the drivers’ seating space was designed, as well as the requirement of the driver seat track travel. Based on the analysis of packaging data of passenger cars, and considering the possible changes, controls such as steering wheel, pedals, sticks, etc., were packaged.

scholarly journals Urban Sub-Center Design Framework Based on the Walkability Evaluation Method: Taking Coomera Town Sub-Center as an Example

2021 ◽  
Vol 13 (11) ◽  
pp. 6259
Author(s):  
Jizhong Shao ◽  
Minge Yang ◽  
Guan Liu ◽  
Ye Li ◽  
Dan Luo ◽  
...  
Keyword(s):  
Research Methods ◽  
Quantitative Research ◽  
Design Research ◽  
Evaluation Method ◽  
Rapid Development ◽  
Research Area ◽  
Low Carbon ◽  
Design Strategies ◽  
Healthy City ◽  
Quantitative Research Methods

As current society’s reflection on the rapid development of motorization and increasing emphasis on the ecological environment, the study of walkable cities has become one of the key points of urban sustainable design. Creating a walkable city is an effective way to build a low-carbon and healthy city. With the development of cities, walkability concepts and theories are constantly being given new life, and research methods and design strategies continue to be updated. A city’s walkability and walkability index have become current research hotspots. Based on prior research on walkability and related urban policies, this study selects Coomera Town on the Gold Coast of Queensland, Australia, as the research area because of Coomera Town policy regulations and environmental requirements. This study utilizes traditional qualitative and quantitative research methods, machine mining technology, and the deep learning big data analysis technology to conduct thematic design research in a real place. Its combines walkability evaluation with walkability design to construct a walkable city in a targeted manner. This provides a reference for related city design in the future.

Design and Application of Urban Planning and Location System Based on GIS Technology

2017 ◽  
Vol 42 (3) ◽  
pp. 5-9
Author(s):  
Qinglin Luan ◽  
Li Zhang
Keyword(s):  
Urban Planning ◽  
Evaluation Method ◽  
Rapid Development ◽  
Gis Technology ◽  
Analysis And Design ◽  
Location System ◽  
Overall Design ◽  
Structured Analysis ◽  
Factor Evaluation ◽  
Economic Construction

Chinese cities are becoming larger and urbanization is accelerating with the rapid development of China's economic construction and formulation of planning objectives. Traditional manual management and information processing methods cannot satisfy the requirements of modern urban planning management. Thus, this study analyzes the application of geographic information system (GIS) in urban planning, starting with the characteristics of GIS technology. Structured analysis and design are conducted for urban planning and the location system. The software engineering approach is adopted throughout the entire process, from the survey to the overall design of the system and database. The evaluation factors of the pension facilities in Baohe, Hefei are extracted through the factor evaluation method, and the weight value is determined. The GIS analysis method is then used, and site suitability evaluation is performed on the Baohe district land layout. Results show that the application of urban planning and a location system based on GIS technology can provide the basis for urban planning.

Complexity Evaluation Method of Electromagnetic Environment Oriented to Communication Equipment Based on Statistic Theory

2014 ◽  
Vol 568-570 ◽  
pp. 1331-1335 ◽  
Author(s):  
Shao Jun Zhang ◽  
Dong Lin Su ◽  
Jian Wang ◽  
Rui Wang
Keyword(s):  
Evaluation Method ◽  
Correlation Energy ◽  
Subjective Evaluation ◽  
Correlation Factor ◽  
Electromagnetic Environment ◽  
Energy Correlation ◽  
Statistical Concept ◽  
Working Parameters ◽  
Communication Equipment ◽  
Polarization Correlation

To improve the objectivity and accuracy of evaluation for electromagnetic environment complexity and its influence on communication equipment, a subjective complexity evaluation method of electromagnetic environment oriented to the communication equipment is presented based on sensitivity and RF protection ratio of communication equipment. Based on statistical concept, the energy correlation factor is modified, and modulation and polarization correlation concept are imported into this method, by which the factor of energy correlation is modified and the subjective evaluation is made by analyzing the time domain correlation, frequency domain correlation, energy domain correlation, modulation correlation and polarization correlation of the electromagnetic environment. These simulation results indicate that communication equipment with various working parameters are influenced differently under the same electromagnetic environment. Namely, the complexities of electromagnetic environment for communication equipment with various working parameters are different.

scholarly journals An Evaluation Method of Mode Switching Quality for Double-Belt Continuously Variable Transmission

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Lanchun Zhang ◽  
Zhongwei Zhu ◽  
Bin Huang ◽  
Tianbo Wang
Keyword(s):  
Evaluation Method ◽  
Evaluation Model ◽  
Subjective Evaluation ◽  
Objective Evaluation ◽  
Transmission Efficiency ◽  
Continuously Variable Transmission ◽  
Mode Switching ◽  
Evaluation Indexes ◽  
Variable Transmission ◽  
Driver’S Intention

In order to improve the transmission efficiency and carrying capacity of conventional single-belt continuously variable transmission (CVT), one new type of dual-belt CVT is proposed in this paper. Under the situation that this new dual-belt CVT should be switched between single- and dual-belt modes frequently according to driver’s intention and road conditions, so five objective evaluation indexes of mode switching quality for the dual-belt CVT are proposed, considering the aspects of vehicle power, comfort, and transmission durability comprehensively. Then, the objective evaluation model of mode switching quality is established by the BP neural network optimized by the genetic algorithm. It is found that the prediction results are consistent with the subjective evaluation. After analyzing the influence of the selected five evaluation indexes on the prediction results, it is obvious that these five evaluation indexes of mode switching quality for dual-belt CVT are reasonable.

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