Realization of Intelligent Infrared Automatic Gate Control System

Abstract

In order to realize the program controlled door opening and improve the security and reliability of the system, the paper adopts infrared detection device, designs automatic lifting rolling door control system based on AT89C51. Infrared sensors are used as sensors to detect infrared energy changes in the human body and convert them into electrical signals to the microcontroller. Adopting DC motors as gate drives requires the design of motor connection and control circuits. Start and stop the motor rotation through the control signals of the microcontroller, thus complete the automatic rise and shut of the shutter door. The experiment results show the automatic control way can enhance the safety and reliability of infrared gate control system. The paper sets the buzzer alarm, designs the combination lock, sets the backspace key avoid of accidental password input error, uses a matrix keyboard as a password keyboard, ensures the increase in the number of optional keys, strengthens the security of the system.