scholarly journals A Location-Based Device Tree System for Rail Transit

New Metro ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 48-54
Author(s):  
Li Shuyue
Keyword(s):  
Management System ◽  
Rail Transit ◽  
Actual Situation ◽  
Fault Trees ◽  
New Device ◽  
Tree Management ◽  
Coding Scheme ◽  
Serial Number ◽  
Data Granularity ◽  
Shanghai Metro

As the Vehicle Branch of Shanghai Metro Maintenance Guarantee Co., Ltd. is making continued progress in refined management, it requires increasing fine data granularity, together with increasing needs for data analysis. Therefore, the existing serial-number-based device trees can no longer meet continuous increasing management requirements, which necessitates a new device tree system. This paper has proposed a new device tree system for rail transit. Based on the physical locations of rail transit devices, the system proposed can associate the location information with property information, equipment serial number, and fault trees. Hence a subway vehicle and fault management system based on device trees was established. Based on the actual situation and management requirements of the Vehicle Branch, this paper has developed a location-based device tree management system and coding scheme, and introduced its advantages in management.

scholarly journals Preventive Maintenance Strategy for Train Doors Based on the Competitive Weibull Theory

2020 ◽  
Author(s):  
deqiang he ◽  
Xiaozhen Zhang ◽  
Yanjun Chen ◽  
Jian Miao ◽  
Congbo Li ◽  
...  
Keyword(s):  
Parameter Estimation ◽  
Preventive Maintenance ◽  
Estimation Method ◽  
Weibull Model ◽  
Urban Rail Transit ◽  
Fuzzy Cluster ◽  
Rail Transit ◽  
Maintenance Strategy ◽  
Actual Situation ◽  
Urban Rail

Abstract In view of the problems of over-maintenance and under-maintenance in the current urban rail transit maintenance strategy and the reliability of single processing of fault data, which is often inconsistent with the actual situation, an incomplete preventive maintenance strategy based on the competitive Weibull model is proposed in this paper. To make the fault mechanism processing method for urban rail vehicles more accurate, fault feature attributes and fault information sequences are introduced to classify fault data. Fuzzy cluster analysis of vehicle fault data can be performed using the formula of the competitive Weibull model, and parameter estimation of the reliability model can be performed by combining it with the graph parameter estimation method. In addition, the fault rate increase factor and service age reduction factor are introduced into the maintenance strategy, and the optimal preventive maintenance cycle and maintenance times are obtained by combining maintenance and replacement according to reliability. A quantum-genetic intelligent algorithm is used to optimize the model-solving process. Finally, the maintenance of urban rail transit train doors is taken as an example. The results of this study show that compared with the traditional maintenance strategy, the reliability of the proposed maintenance strategy is closer to the actual situation. At the same time, the proposed maintenance strategy can effectively reduce the number of parked vehicles, reduce maintenance costs, and ensure the safety of train operation, maintenance economy and performance of tasks.

Research on the Rail Transit Construction Informatization Management System

LISS 2013 ◽  
2013 ◽  
pp. 971-976
Author(s):  
Haiyan Si ◽  
Yisheng Liu ◽  
Jianwu Dai
Keyword(s):  
Management System ◽  
Rail Transit

Research on Key Technologies of College Computer Room Billing Management System

2011 ◽  
Vol 474-476 ◽  
pp. 864-869 ◽  
Author(s):  
Kun Zhang
Keyword(s):  
Management System ◽  
Design Procedure ◽  
Actual Situation ◽  
Database Development ◽  
Key Technologies ◽  
Database Technology ◽  
Billing Management ◽  
Computer Labs

According to the actual situation of some colleges, we will apply the database technology and its development principle combine the practice, follow the design procedure of database development, and design a billing management system for universities’ computer labs.

Development of Case Database of Fixtures Based on SolidWorks

2010 ◽  
Vol 426-427 ◽  
pp. 289-293
Author(s):  
J. Lin ◽  
Guang Yu Tan ◽  
B.C. Liu ◽  
Yi Ming Rong
Keyword(s):  
Management System ◽  
Database Management ◽  
Visual Basic ◽  
Search Display ◽  
Database Management System ◽  
Secondary Development ◽  
System Management ◽  
Actual Situation ◽  
Simple Operation

This work employs Visual Basic and Access to develop a case database management system for flexible fixtures using coding technology and parameter driving technology. The database management system of fixtures’ cases is built. The secondary development of SolidWorks is performed by VB 6.0, and the system is transplanted to SolidWorks. The system can realize the fixtures’ auto coding, storage, search, display and system management with simple operation and convenient maintenance. The system has a large flexibility as the case database can be expanded and the fixtures’ parameters can be modified according to actual situation of enterprise without limitations of the software.

scholarly journals The Innovative Application of Principal's Leadership Art and Leadership in International School management

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Jingxi Lu
Keyword(s):  
Principal Leadership ◽  
Management System ◽  
International Schools ◽  
School Management ◽  
International School ◽  
Current Situation ◽  
Actual Situation

At present, most schools adopt the principal management system. In the International Campus, the principal's leadership has a great impact on the quality of school operation. Headmasters must combine the actual situation and use of international schools, and lead in an innovative way to better promote the development of international schools. Therefore, this paper analyzes the current situation and importance of principal leadership and leadership art in international school management, and discusses the innovative application strategies of principal leadership art and leadership in international school management.

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