Elevators are a must-have vertical

Elevators are a must-have vertical platform for high-rise buildings such as high-rise buildings, shops, houses, multi-storey buildings and warehouses. With the development of the society, the scale of the building is getting larger and larger, and more and more floors put forward higher requirements for the speed regulation, speed regulation and speed regulation range of the elevator. The elevator is a complex system with mechatronics. It involves not only mechanical transmission, electrical control and civil engineering, but also reliability, comfort and aesthetics. For modern elevators, it should be very safe. In fact, many elevator safety measures have been taken. When designing an elevator, a higher safety factor and safety factor should be applied to the mechanical and electrical components. However, only the manufacture, installation, commissioning, after-sales service and maintenance of the elevator can guarantee the highest quality of the elevator. In foreign countries, the regulation has realized the integration of elevator manufacturing, installation and maintenance, and established a professional installation team maintenance department recognized by many manufacturing companies, and has standardized, installed and commissioned, routine maintenance and inspection tests. It guarantees the reliable operation and safety of the elevator [1]. Therefore, it can be said that it is safer to take the elevator. An American insurance company carefully investigated and scientifically calculated the safety of the elevator. The conclusion is that taking the elevator is five times safer than walking the stairs. According to statistics, about 8 billion people in the United States use other means of transportation, and 5.4 billion people use elevators. At present, the development of elevator operation logic control systems consisting of programmable logic controllers (PLCs) and microcomputers is changing rapidly. PLC control elevator has the advantages of high reliability, convenient maintenance and short development cycle.
The elevator is more reliable and has more flexibility to complete more complex control tasks, which has become the development direction of elevator control [2].