Automatic control system for rolling door based on driving pre-amplification electric circuit

Abstract

The invention discloses an automatic control system for a rolling door based on a driving pre-amplification electric circuit, the system is characterized in that: the system is formed by a CPU, an A / D converter and a control circuit which are connected with the CPU, a pre-amplification electric circuit connected with the A / D converter, a photoelectric sensor and an infrared sensor which are connected with the pre-amplification electric circuit, a drive circuit connected with the control circuit, and a lifting motor connected with the drive circuit; wherein the control circuit is formed by a control chip IC, a signal trigger circuit of which an input end is connected with the CPU, and a door opening control circuit and a door closing control circuit of which output ends are connected with the drive circuit; and the signal trigger circuit, the door opening control circuit and the door closing control circuit are connected with the control chip IC. According to the invention, the system has simple structure and low cost and can automatically open and close the door, so that the system can ensure that the rolling door isolates the product and production environment, and the system is suitable for generalizing and applying.

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 driving preamplifier 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 enviro...

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 driving preamplifier circuit that is not only simple in structure, but also low in cost, and can also close the rolling doors in time

Images