Group control system for multi-car elevators and safety control method thereof

Abstract

The invention provides a group control system for multi-car elevators and a safety control method thereof. According to the group control system for the multi-car elevators and the safety control method thereof, the safe distance between cars and between the cars and rotating mechanisms can be monitored in real time, the operating state of the cars can be controlled, and the safety can be improved. According to the system, a distance monitoring device tracks and monitors the height of the cars and the distance between the cars, the minimum safe distance and the forced stop distance are set, when the distance between the cars is smaller than the safe distance but greater than the forced stop distance, the cars slow down for operation, when the distance between the cars is smaller than the forced stop distance, the cars stop operating, the distance between the cars can be effectively controlled, the buffering effect can be realized, and the cars can be prevented from suddenly stopping. A height detection coder and distance measuring instruments are adopted for monitoring the distance between the cars, and therefore the safety factor is increased, collision between the cars is effectively prevented, and the robustness of the system is improved.

Description

technical field [0001] The invention relates to the field of construction elevator control, in particular to a multi-car elevator group control system and a safety control method thereof. Background technique [0002] A traditional construction elevator has two cars, which are placed on both sides of the standard section, and the lifting operation is independent without affecting each other. Since only one car runs on one side of the standard section, the carrying efficiency is not high enough for the construction of high-rise buildings, especially super high-rise buildings. Therefore, it is often necessary to install multiple elevators to solve the problem of low carrying efficiency. And the setting mode of many elevators has increased the input and maintenance of construction equipment, has increased overall construction cost and maintenance cost. [0003] The new multi-car construction elevator is equipped with multiple cars on one elevator, and multiple cars can be set ...

AI Technical Summary

Problems solved by technology

Since only one car runs on one side of the standard section, the carrying efficiency is not high enough for the construction of high-rise buildings, especially super high-rise buildings, so it is often necessary to set up multiple elevators to solve the problem of low carrying efficiency

However, the setting method of multiple elevators increases the investment and maintenance of construction equipment, and increases the overall construction cost and maintenance cost.

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