Car space mistake proofing detecting method for vertical lifting type mechanical three-dimensional parking garage

Abstract

The invention discloses a car space mistake proofing detecting method for a vertical lifting type mechanical three-dimensional parking garage. An optoelectronic signal is sent by diffuse reflection optoelectronic switches, wherein the optoelectronic switches are installed in the middle of the top of a parking garage lifting area and on the two sides of a lifting fork. Whether a vehicle is parked in the middle is judged through a method that whether the optoelectronic signal reflected by a diffuse reflection plate is received or not, and overlapping detection of car space is judged through twice detection. The mistake proofing detection for the whole parking garage can be finished by only controlling three detecting points through a PLC. Compared with the prior art, the car space mistake proofing detecting method has the advantages that the control over the detecting points is greatly reduced, the number of auxiliary devices installed on the three-dimensional parking garage is reduced, the working efficiency and the accuracy of the PLC are effectively improved, and the accidents caused by mistaken parking are greatly reduced.

Description

technical field [0001] The invention relates to the field of detection of parking spaces in lift parking garages, in particular to a parking space error-prevention detection method for vertical lift-type mechanical three-dimensional parking garages. Background technique [0002] Existing tower-type three-dimensional garage, after the garage is constructed, exterior walls are added around the outside of the garage, so the external line of sight can be blocked. Except for the first floor of the garage, which is visible from the outside and can be directly driven into, the upper garage with an opaque exterior wall is invisible. If a glass exterior wall is used, it may also cause danger when a car is originally parked on a certain floor due to reasons such as excessive floor height and wrong number of floors. In order to avoid this kind of situation, the existing detection method is generally to install a pair of electric eyes on the front and rear beams of each upper parking s...

AI Technical Summary

Problems solved by technology

[0004] The existing inspection technology uses a large number of radio eyes, resulting in the need for a large number of auxiliary equipment, a large number of electronic circuits, more PLC points, and complex control programs, because the control system requires a large number of calculations to control each radio pair. Electronic eyes, therefore, will bring a great load to the system, and there will be calculation overflow, resulting in calculation errors, wrong parking in the garage, and accidents