Intelligent control system based on elevator

Abstract

The invention discloses an intelligent control system based on an elevator, and relates to the technical field of intelligent control systems. The intelligent control system comprises a PLC, a speed regulating device and a limit module, and the PLC is used for controlling the release of a command; the speed regulating device comprises a traction machine and a frequency converter; the PLC is connected with the traction machine, the frequency converter, a communication module, an internal displayer, an external displayer and a door machine through control circuits; the PCL receives input signals sent by an infrared detector, a fire control switch, an outer control button, a pressure sensor, an internal control button and an infrared radiation sensor through data transmission circuits; the limit module is used for controlling the position of an elevator mechanism. According to the intelligent control system based on the elevator, signals are detected by different detection units, when the elevator is fully loaded, the PLC controls the door machine to open, full-load information is displayed through the external displayer, only a control command of the internal control button of the elevator is executed, and therefore the taking time of passengers in the elevator is shortened, and the time waste is reduced.

Description

technical field [0001] The invention belongs to the technical field of intelligent control systems, in particular to an elevator-based intelligent control system. Background technique [0002] The hardware of the elevator control system is composed of car control panel, hall door signal, PLC, frequency converter, and speed control system. The frequency converter only completes the speed control function, while the logic control part is completed by PLC. PLC is responsible for processing the logical relationship of various signals, so as to send start and stop signals to the inverter, and at the same time, the inverter also transmits its working status to PLC to form a two-way communication relationship. The system is also equipped with a rotary encoder and PG card coaxially connected with the motor to complete speed detection and feedback, forming a speed closed loop and a position closed loop. In addition, the system must also be equipped with a braking resistor. When the ...

AI Technical Summary

Problems solved by technology

[0004] The existing elevator control system can only complete the start and stop commands of different floors according to the internal and external control commands of the elevator. When the elevator is fully loaded, it continues to start and stop on different floors, which wastes the time of passengers and increases the occupancy of the elevator. Rate

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