The working principle of the electronic door is that when the induction detector detects the movement of the object, it sends a pulse signal to the main controller. The main controller starts the power motor to run after judgment, and transmits the power to the synchronous belt, and then the synchronous belt transmits the power to the spreader system to open the door leaf. At the same time, the main controller will monitor the number of revolutions of the power motor to control the power motor to apply force or enter slow operation. After the door leaf is opened, the main controller will make a judgment. If it is necessary to close the door, the power motor will be controlled to move in the opposite direction to close the door leaf.