Roller-shutter-door automatic control system based on signal-processing-type driving circuit
An automatic control system and drive circuit technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as forgetting to close doors, dust or smoke entering, and achieve smooth action, high precision, and simple structure. Effect
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[0027] Such as figure 1 As shown, the automatic control system of the present invention mainly consists of a central processing unit, an A / D converter connected with the central processing unit and a control circuit, a signal filter circuit connected with the A / D converter, and a signal filter circuit The connected preamplifier circuit consists of a photoelectric sensor and an infrared sensor connected with the preamplifier circuit, a drive circuit connected with the control circuit, and a lifting motor connected with the drive circuit. The infrared sensor is used to collect the human body signal outside the rolling shutter door. When someone wants to enter the rolling shutter door, the infrared sensor sends the collected human body signal to the A / D converter, and the A / D converter converts the signal collected by the infrared sensor and sends it To the central processing unit, the central processing unit sends a door opening control signal to the control circuit, and the con...
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