Frequency conversion PLC (programmable logic controller) management system for parking lot

Abstract

The invention discloses a frequency conversion PLC (programmable logic controller) management system for a parking lot, which comprises a PLC control module, a frequency converter and a sensor module, wherein the PLC of the PLC control module is responsible for processing logic relationships of various signals; the frequency converter drags a motor on a railing at an entrance of the parking lot; the railing is switched on or off by using the frequency converter to control the forward / reverse rotation of the motor; the sensor module is used for detecting whether the opening or closing of the railing is in place or not; when the railing is opened to be in place, the detection of the sensor is stopped by forward rotation; and when the railing is closed, the detection of the sensor is stopped by reverse rotation. According to the invention, the reliability of an operation system can be improved; meanwhile, the PLC has a function of communicating with an upper computer, therefore, the frequency conversion PLC management system provides convenience to remote networking real-time control. The frequency conversion PLC management system has wide development space and potential for greatly enhancing the establishment for intelligent management of automobile parking, and in particular quickness, convenience and safety.

Description

technical field [0001] The invention relates to a system in the technical field of parking lot management, in particular to a frequency conversion PLC management system for a parking lot. Background technique [0002] In recent years, with the improvement of people's living standards, cars are gradually entering the homes of ordinary people. The rapid increase of vehicles has caused parking management problems. Simple parking facility construction and parking management technology can no longer meet the growing demand of vehicles for parking services. Especially in commercial shopping districts, large hospitals, commercial office buildings and other places in prosperous areas, the parking lot area is large and there are many parking spaces, but there are often various unsatisfactory situations in parking: it is difficult to find a parking space, time-consuming and laborious, and it is difficult to find it when you come out. own car etc. One of the reasons for this situati...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned deficiencies in the prior art, to provide a parking lot with variable frequency PLC management system, aiming at the cumbersome manual control of the current parking lot, using PLC to manage the car in and out and parking instructions in the parking lot, this solution provides A high-efficiency management method can provide users with more convenient and effective services

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