Escalator automatic shutdown controller for unmanned elevators

Abstract

The invention relates to a controller for automatically shutting down an escalator during nobody taking. The controller is characterized by comprising a 12V direct-current power source, a microwave induction and detection circuit, a monostable delay circuit and a direct-current relay drive circuit, wherein a microwave induction controller IC1 of the microwave induction and detection circuit adopts a TX982 model, the monostable delay circuit consists of a time-base circuit IC2, a resistor R1, a timing capacitor C1 and a direct-current relay J, and the time-base circuit IC2 adopts an NE 555 model. At present, a frequently-used escalator in a market or a subway operates at the constant speed during loading or zero load, and has the defects of large energy consumption, large mechanical abrasion, short service life and the like; the high-sensitivity microwave induction controller is adopted, microwave electric fields are established at an entrance and an exit at two ends of the escalator and in a passage of the escalator, so that the normal and continuous operation of the escalator is maintained when passengers take the escalator, and the operation of the escalator is stopped automatically when the passengers leave; and accordingly, the energy is saved, and the mechanical abrasion of the escalator is reduced.

Description

technical field [0001] The invention belongs to the technical field of power-saving control, and relates to an automatic shutdown controller of an escalator for unmanned escalators. Background technique [0002] At present, the escalators commonly used in shopping malls and subways run at a constant speed when loaded or unloaded, which has the disadvantages of large energy consumption, large mechanical wear, and low service life. Through the preliminary evaluation of 2 escalators, the power of each escalator motor is 11KW, and it runs for 8 hours a day, and it always runs at a constant speed. In most cases, the escalator runs at 2 / 3 of the rated passenger capacity Below, each escalator has accumulated nearly 3 hours of no-load running time per day. If the escalator stops or runs slowly when no one is empty, it will greatly reduce the power consumption of the escalator motor and reduce unnecessary mechanical wear. If the operation mode of the escalator is changed from daily...

AI Technical Summary

Problems solved by technology

[0002] At present, the escalators commonly used in shopping malls and subways run at a constant speed when loaded or unloaded, which has defects such as large energy consumption, large mechanical wear, and low service life.

Images