Roller-shutter-door automatic control system based on signal filtering circuit

Abstract

The invention discloses a roller-shutter-door automatic control system based on a signal filtering circuit. The automatic control system is characterized by being mainly composed of a central processing unit, an A / D converter connected with the central processing unit, a control circuit connected with the central processing unit, the signal filtering circuit connected with the A / D converter, a photoelectric sensor connected with the signal filtering circuit, an infrared sensor connected with the signal filtering circuit and a lifting motor connected with the control circuit. The control circuit is composed of a control chip IC, a signal trigger circuit with the input end connected with the central processing unit, a door opening control circuit with the output end connected with the lifting motor and a door closing control circuit with the output end connected with the lifting motor; the signal trigger circuit, the door opening control circuit and the door closing control circuit are connected with the control chip IC. The automatic control system is simple in structure and low in cost, a door can be automatically opened and closed, it accordingly can be guaranteed that products and the production environment can be segregated through the roller shutter door, and the automatic control system is suitable for application and popularization.

Description

technical field [0001] The invention relates to an automatic control system, in particular to an automatic control system for rolling shutter doors based on a signal filtering circuit. Background technique [0002] Due to the needs of production and processing, factories usually use rolling doors to isolate products from the production environment. The rolling doors currently used are usually electric rolling doors. The electric rolling shutter door is opened and closed by the forward and reverse of the single-phase motor controlled by the relay, that is, the door is opened by the up button, the door is closed by the down button, and the door is stopped by the stop button. Since the electric rolling doors are controlled by human actions, there are often situations where the door is forgotten or not closed due to anxiety, so it is easy to cause harmful pollution such as noise, dust or smoke to enter the rolling door, thereby affecting the products or the production environmen...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects that currently used electric rolling doors rely on manual actions to control the switch, and often forget to close the door or fail to close the door due to anxiety, so that harmful pollution such as noise, dust or smoke easily enters the rolling door, and provides a An automatic control system for rolling doors based on a signal filtering circuit that is not only simple in structure, but also low in cost, and can also close the rolling doors in time

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