1. Set to open the limit switch. Install a limit switch on the garage door. When the door is opened to the specified position, the switch signal will stop the opening operation and make the door stop in the half-open state. This method needs to set the switch position accurately, which is simple and economical.
2. Use an opener with deceleration and stop functions. Some garage door openers are equipped with deceleration and stop buttons on the control panel. Press the stop button directly, the opener can stop working immediately, and the door will stop at the current position. This method is simple to operate and needs a modern multifunctional bottle opener.
3. Use the force control of the door lock. A multi-point lock is installed on the garage door, and the opening speed and stopping position of the door are controlled by applying different forces through the lock. This method has high requirements for the door lock, and the door itself must have high stability, which is difficult to construct and costly.
4. Use professional controllers such as PLC. Through programming, the door opener can automatically slow down and stop when the door is opened to the specified position. This control system divides the door opening process into several stages, and sets different parameters for the time and speed of each stage to achieve fine control effect. This is an advanced control scheme with high cost and the best effect.
5. Using encoder to realize closed-loop control. Install an encoder on the garage door, detect the opening degree of the door body in real time through the encoder, and send out a stop signal according to the set opening angle to stop the operation of the opener. This is also a high-end automatic control solution with high precision and effect and high price.