Automatic retractable door circuit principle
Electric retractable door (Automaticretractable door) is a kind of electric control or remote control of the retractable door, retractable door from the material can be divided into aluminum retractable door, stainless steel retractable door, iron retractable door, alloy retractable door.
Electric retractable door composition: electric retractable door mainly by the door, the drive, the control system.
The door is made of high quality stainless steel and aluminum alloy special profile, using parallelogram principle hinge, flexible flexible stretching.
The drive is driven by a special motor, the worm gear is slowed down, and there is no manual clutch. Control system has a control panel, button switch, the other can be equipped with wireless remote control device according to user needs. Can be equipped with a rolling display, display 500 words of the display. But also equipped with intelligent infrared dual-probe anti-collision device, event or foreign body 20-30CM can automatically return to run, so as to protect the safety of vehicles and pedestrians.
Circuit principle:
Circuit is the core of the 80C51 microcontroller, its internal with 4KB of FlashROM, no need to expand the program memory; computer does not have a lot of computing and temporary data, the existing 128B on-chip RAM has been able to meet the requirements, do not have to expand off-chip RAM, the system Equipped with 4-bit LED display and 2 single-interface keyboard, using P0 interface external 8-way inverted three-state buffer 74LS244 for LED dynamic scanning segment code control drive signal, P1 interface P1.0-P1.3 external set Electrode open circuit inverting gate 74LS07 as a 4-bit LED bit select signal driver port, LED common cathode and 74LS07 connected to the output; key interface, from P2.0, P2.1 to complete the digital signal reception. P3 port then D / A converter, the microcontroller processed signal into an analog signal through the motor power into mechanical drive automatic retractable door to complete the switch.
control method:
According to the Ministry of Construction standards, "electric flat open, push and pull the wall door" JG / T 155-2003 5.5.2 relevant provisions of the electric sliding door common control methods are the following two: 1. Control handle, line control; Wireless remote control, such as 433MHz wireless remote control handle control
