An elevator is a vertical elevator driven by an electric motor, equipped with a box shaped car, used for carrying passengers or goods in multi story buildings. With the continuous occurrence of elevator accidents, people's requirements for elevator safety are also increasing. In order to prevent similar accidents from happening again, elevator designers have installed various sensors and measuring instruments on the elevator body, and the tilt sensor is one of them.
Tilt sensors are usually installed at the top of elevators to detect the verticality of the elevator in real time. When the elevator exceeds the slope, relevant personnel will understand the situation in real time and handle it in a timely manner. The angle signal output in real-time by the tilt sensor can also be displayed through relevant instruments and networked to form a monitoring network, thereby better maintaining the use of elevators and ensuring the safety of personnel entering and exiting. The currently popular elevator anti pinch sensors are generally infrared radiation photosensitive sensors.
A device applied to door machines to protect people or objects from being caught. The infrared photoresistor emits a beam of light to illuminate the transmitter or receiver installed on the other side of the elevator door. One side of the elevator door is equipped with a transmitter, and the other side is equipped with a receiver. When the middle beam is blocked and the receiving beam does not receive the emitting beam, it reacts to the controller and then to the elevator main board, and the elevator door naturally opens.
In addition, there is an encoder in the elevator that converts the speed signal into an electrical signal. It mainly has two functions: one is to detect the real-time position of the elevator in the shaft, and the other is to detect the real-time speed of the elevator operation. Finally, sensors have many applications in elevators, such as accelerometers, pressure sensors, displacement sensors, weighing sensors, etc.
