A Problem and Its Solution for Multi-Car Elevator Group Control
نویسندگان
چکیده
Multi-car elevator (MCE for short) systems have been receiving increasing attention these days. An MCE has two or more cars in one shaft. It is difficult to control MCEs by using algorithms developed for single-car elevator systems, because MCEs need to avoid collision of the cars of the same shaft. In this paper, we propose an algorithm to control MCE systems, and show the effectiveness of our algorithm through computer simulation.
منابع مشابه
MceSim: A Multi-Car Elevator Simulator
Multi-Car Elevator (MCE) systems, which consist of several independent cars built in the same shaft, are being considered as the elevators of the next generation. In this paper, we present MceSim, a simulator of MCE systems. MceSim is an open source software available to the public, and it can be used as a common testbed to evaluate different control methods related to MCE systems. MceSim was u...
متن کاملSolving a New Multi-Period Mathematical Model of the Rail-Car Fleet Size and Car Utilization by Simulated Annealing
There is a significant interaction between sizing a fleet of rail cars and its utilization. This paper presents a new multi-period mathematical model and a solution procedure to optimize the rail-car fleet size and freight car allocation, wherein car demands, and travel times, are assumed to be deterministic, and unmet demands are backordered. This problem is considered NP-complete. In other wo...
متن کاملMulti-Car Elevator Group Control: Schedule Completion Time Optimization Algorithm with Synchronized Schedule Direction and Service Zone Coverage Oriented Parking Strategies
Multi-car elevator systems consist of shafts with two or more independent cars operating in them. Due to their special characteristics, such as the need to avoid the interference among cars in the same shaft, conventional control methods cannot be implemented on them. Therefore it is necessary to develop group control methods for multi-car elevator systems able to perform an optimal floor call ...
متن کاملMulti-Objective Optimization of Multi-Agent Elevator Group Control System Based on Real-Time Particle Swarm Optimization Algorithm
In order to get a globally optimized solution for the Elevator Group Control System (EGCS) scheduling problem, an algorithm with an overall optimization function is needed. In this study, Real-time Particle Swarm Optimization (RPSO) is proposed to find an optimal solution to the EGCS scheduling problem. Different traffic patterns and controller mechanisms for EGCS are analyzed. This study focus...
متن کاملPso and Tabu Search Approaches for the Car Allocation Problem in Multi-car Elevator Systems
Heavy vertical traffic conditions appear in high-rise buildings especially during the rush-hour period. So, offered service provided by multi-car elevator systems for such buildings during that period is expected to work fast, efficiently and without long waiting times for users. The approach of our work focuses on reducing the passengers travel and waiting times. To do so Particle Swarm Optimi...
متن کامل