A method and control system for realizing the rebound and anti-prying alarm of the rolling shutter door

Abstract

The invention relates to a method and control system for realizing rebound of a roller shutter door in resistance, anti-prying function and alarm. By using reference signals to allocate a roller shutter door in a normal condition or an anti-prying condition, the control system judges whether the movement of the roller shutter door is legal under different conditions. The reference signals is obtained from combining a reference control signal of an electric motor with a height signal of the roller shutter door (the height signal is embodied by an inductive signal of a proximity switch), and the roller shutter door can make different responses to a same situation under different conditions, thereby realizing the function that after the roller shutter door is closed in place or set in a state of rest, the roller shutter door is still not opened by the error operation as a rebound button for enabling the rebound of the roller shutter door in resistance is pushed, and effectively overcoming the deficiency that after being closed in place, the roller shutter door launches the function of rebound in resistance by mistake as a result of being deformed and lengthened; meanwhile, a signal of a down stroke location switch cooperates with the inductive signal of the proximity switch to realize judgement on valid movement of anti-prying function and alarm. By adopting the reference control voltage as the judgement basis of the roller shutter door conditions, deficiencies in video surveillance can be overcome.

Description

technical field [0001] The present invention relates to mechanical control technology, and more specifically, relates to a method for realizing the rebound and anti-pry alarm of the rolling door, and a control system for realizing the rebound and anti-pry alarm of the rolling door. Background technique [0002] There are two kinds of common rolling shutter doors, one is single-function rising and falling, and the motor stops after the rising and falling are in place; the other has the function of rebounding when encountering resistance. However, under the resistance rebound function of the prior art, the resistance rebound function will be triggered during the stroke between the opening position and the closing position. Then, when the rolling door is deformed and elongated due to long-term use, it will appear that when it is about to close in place, the bottom of the rolling door has touched the ground, but the motor is still running, then the function of firing bullets whe...

AI Technical Summary

Problems solved by technology

In addition, manual control is required, and the stop signal is used to control the rolling door to stop falling in time, that is, the rolling door cannot automatically stop when it is fully closed in the presence of a rebound function when encountering resistance.

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