Mathematical Models of Lift Systems and Their Simulation

Belyaev, Yuri K.; Hajiyev, Asaf

doi:10.1007/978-3-030-21248-3_37

Cited by 2 publications

(6 citation statements)

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“…We will consider only some of them, for instance, the Odd-Even system, where some lifts serve customers at the odd floors and other lifts, at the even floors. Another control rule, we call it following to [4], the Up-Down system, where some lifts serve customers going from the first floor to the Down floors 1, 2, … ,k,others serve customers going from the first floor to the Upper floors1, k + 1, k + 2, … ,n. This control was introduced in [5]. For some systems by simulation, the numerical values of optimal k opt.…”

Section: Control Policies For the Lifts' Systemsmentioning

confidence: 99%

“…In this paper, only loading and unloading regimes will be considered. Some investigations of the mixed regimes can be found in [5].…”

Section: Srt(t) -mentioning

confidence: 99%

“…As it follows from Table 2, the introduction of the SC (situation control) reduces the value of the CTT, by up to 25%. In [4] it was shown that for the CTT (L 2 F n C IL ) in an unloading regime and rare flow of customers, the following ratio is true:…”

Section: Energy Expensesmentioning

confidence: 99%

“…In this paper, the authors consider various lift systems with different parameters and different control rules. This paper can be regarded as a continuation of the authors' investigations presented in [4,5]. Hence, we follow the notations introduced in these papers.…”

Section: Introductionmentioning

confidence: 98%

“…Unfortunately, the complicated lifts' systems, with various control rules, are not yet investigated widely. In [4][5][6][7], various mathematical models of lifts' systems with, different control rules, were introduced. The construction of mathematical models of lifts' systems and their research by analytical approaches, face some difficulties, because as it was mentioned above, these models have complicated structures.…”

Section: Introductionmentioning

confidence: 99%

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Various lifts’ systems with different control rules are considered. It is suggested to use the efficiency indexes: customer’s average waiting in lift cabin time and average total time, including the time of delivering the customer to the desired floor. Various control rules are introduced: Odd-Even, where one lift serves only customers in Odd floors and other lift only does that in Even floors Up-Down control rule where one lift serves only customers who are going from the first floor to the destination floor 2, 3,…, k; another lift serves customers from the first floor to the upper floor k + 1, k + 2, …, n. The results of simulation, allowing to compare various control rules relatively to the efficiency indexes, are given. It is introduced an optimal number of lifts, which minimizes number of lifts, minimizing a customer’s average waiting time. For some systems, the method of finding the optimal number of lifts, is suggested. Necessary figures demonstrating the operation of the lifts’ systems and the results of the simulation allow to estimate the efficiency indexes.

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Section: Control Policies For the Lifts' Systemsmentioning

confidence: 99%

“…In this paper, only loading and unloading regimes will be considered. Some investigations of the mixed regimes can be found in [5].…”

Section: Srt(t) -mentioning

confidence: 99%

Section: Energy Expensesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%