scholarly journals Weighted Time-Band Approximation Model for Flight Operations Recovery considering Simplex Group Cycle Approaches in China

2016 ◽  
Vol 2016 ◽  
pp. 1-17 ◽  
Author(s):  
Haiwen Xu ◽  
Songchen Han
Keyword(s):  
Numerical Experiments ◽  
Recovery Period ◽  
Computation Time ◽  
Actual Data ◽  
Approximation Model ◽  
Hub And Spoke ◽  
Control Center ◽  
Flight Operations ◽  
Operations Control ◽  
Time Band

The time-band approximation model for flight operations recovery following disruption (Bard, Yu, Arguello, IIE Transactions, 33, 931–947, 2001) is constructed by partitioning the recovery period into time bands and by approximating the delay costs associated with the possible flight connections. However, for disruptions occurring in a hub-and-spoke network, a large number of possible flight connections are constructed throughout the entire flight schedule, so as to obtain the approximate optimal. In this paper, we show the application of the simplex group cycle approach to hub-and-spoke airlines in China, along with the related weighted threshold necessary for controlling the computation time and the flight disruption scope and depth. Subsequently, we present the weighted time-band approximation model for flight operations recovery, which incorporates the simplex group cycle approach. Simple numerical experiments using actual data from Air China show that the weighted time-band approximation model is feasible, and the results of stochastic experiments using actual data from Sichuan Airlines show that the flight disruption and computation time are controlled by the airline operations control center, which aims to achieve a balance between the flight disruption scope and depth, computation time, and recovery value.

Flight Operations Control Center (FOCC)

1993 ◽  
Author(s):  
JOHN MOCHARNUK ◽  
B. GUY ◽  
EDWARD WEBSTER ◽  
CARL GLIM
Keyword(s):  
Control Center ◽  
Flight Operations ◽  
Operations Control

scholarly journals Adaptation of Line Operations Safety Audit (LOSA) to Dispatch Operations (DOSA)

2018 ◽  
Vol 7 (2) ◽  
pp. 126 ◽  
Author(s):  
Roohollah Khoshkhoo
Keyword(s):  
Management System ◽  
Safety Management ◽  
Error Management ◽  
Safety Management System ◽  
Control Center ◽  
Flight Operations ◽  
Potential Applications ◽  
Operations Control ◽  
Training Courses ◽  
Line Operations Safety Audit

Purpose: Dispatch Operations Safety Audit (DOSA) is a proactive and predictive method in safety management system that detects the capabilities and pitfalls of dispatcher performance. In this study, Dispatch-Line Operations Safety Audit is carried out in an airline and results are analyzed and discussed.Design/methodology/approach: The method of DOSA implementation for flight operations officers is similar to LOSA for flight crew.Findings: Results show that DOSA has an important effect on Threat and Error Management (TEM) in the Operations Control Center (OCC).Originality/value: Potential applications of this research include the better threat and error management in OCC with the implementation of DOSA as well as identification of threats and errors types for FOOs in OCC. Also distribution of threats and errors in different phases of dispatch shift is discussed, therefore syllabuses of training courses can be provided with respect to threat and error types for flight operations officers.

Использование программного обеспечения  для оптимизации работы Центральной диспетчерской службы

2020 ◽  
Author(s):  
Viktor, Solov’ev ◽  
M. Arbuzov ◽  
N. Lesnykh
Keyword(s):  
Entire Period ◽  
Control Center ◽  
Software Products ◽  
Self Development ◽  
Operations Control ◽  
Water And Wastewater

Представлен обзор программных продуктов, разработанных группой специалистов различных служб и отделов ООО Водоканал г. Новокузнецка. Более 10 лет персонал Центральной диспетчерской службы предприятия использует данное программное обеспечение в своей работе. Разработка и применение собственных программ позволяет вносить необходимые коррективы в течение всего периода их использования, что обеспечивает максимальную простоту и удобство для работы пользователей. Рассмотрен порядок работы с несколькими программами: приведены виды окон, отображаемых на мониторе пользователя отражена пошаговая последовательность работы диспетчера с программой указаны дополнительные функции программ, позволяющие оптимизировать отдельные производственные процессы деятельности персонала диспетчеров. На основе представленных материалов возможно создание собственных аналогичных продуктов с учетом индивидуальной специфики предприятий водопроводно-канализационного хозяйства. Работа в этом направлении позволит гарантированно оптимизировать работу персонала диспетчерской и других служб, процессы взаимодействия различных подразделений внутри предприятия, а также предприятия с потребителями.A review of software products developed by a group of specialists from various services and departments of Vodokanal LLC, in Novokuznetsk is presented. For more than 10 years, the staff of the operations control center of the enterprise has been using this software in their work. The development and application of self-developed software provides for making the necessary adjustments throughout the entire period of its use to ensure maximum simplicity and friendliness for users. The procedure of using several software products is considered: the types of windows displayed on the users monitor are given the step-by-step sequence of the operational managers work with the software is reflected additional functions of the software are indicated that allow upgrading separate actions of the personnel of the operations control center. On the basis of the information presented self-development of similar software is possible provided the specific features of water and wastewater utilities are considered. Further research in this direction will allow reliable upgrading the activities of the personnel of the operations control center and other services, improving the interaction of various departments within the enterprise, as well as the consumer relations.

Special Design Features, OSS 01 Oceanographer and OSS 02 Discoverer

1968 ◽  
Vol 5 (03) ◽  
pp. 207-229
Author(s):  
A. L. Powell ◽  
H. B. Stover
Keyword(s):  
Power Generation ◽  
Laboratory Data ◽  
Data Acquisition System ◽  
Geodetic Survey ◽  
Special Design ◽  
Control Center ◽  
Oceanographic Research ◽  
Operations Control ◽  
And Control ◽  
Water Bottom

Special construction features required by oceanographic research ships are described in this paper. They are grouped into categories relating to the following: atmosphere, surface, mid-water, bottom, subbottom, and general. Other overall construction features which assist the ships in their performance in the foregoing activity fields are also described. These features are position fixing, position holding and control, operations control center, stability, open deck, antiroll tank, oceanographic laboratory, data acquisition system, and electric power generation. The new Coast and Geodetic Survey Ships Oceanographer and Discoverer are used as the basis for discussion. A technical description of each of the ships is given in the Appendix.

ExoMars 2020: Rover Operations Control System Design as part of the Rover Operations Control Center (ROCC)

2018 ◽  
Author(s):  
Fran Martinez Fadrique ◽  
Rafael Sánchez-Beato Fernández ◽  
Marco Barrera ◽  
Paola Franceschetti ◽  
Luc Joudrier
Keyword(s):  
Control System ◽  
System Design ◽  
Control System Design ◽  
Control Center ◽  
Operations Control

scholarly journals Improved Qrginv Algorithm for Computing Moore-Penrose Inverse Matrices

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Alireza Ataei
Keyword(s):  
Numerical Experiments ◽  
Computation Time ◽  
Computational Method ◽  
Real Matrix ◽  
Pseudoinverse Matrix ◽  
Arbitrary Matrix ◽  
Pseudo Inverse

Katsikis et al. presented a computational method in order to calculate the Moore-Penrose inverse of an arbitrary matrix (including singular and rectangular) (2011). In this paper, an improved version of this method is presented for computing the pseudo inverse of an m×n real matrix A with rank r>0. Numerical experiments show that the resulting pseudoinverse matrix is reasonably accurate and its computation time is significantly less than that obtained by Katsikis et al.

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