Recently, the special project "Research and Application of Key Technologies for Urban Elevator Safety Guarantee" undertaken by Hangzhou Special Equipment Testing and Research Institute for quality inspection and public welfare industry successfully passed the acceptance of the expert group. Using the Internet of Things technology, the project team has successfully developed an elevator running status online monitoring and fault classification and classification remote alarm system, formulated the risk assessment rules for elevators in use, and developed an elevator emergency rescue command system, which is the first in China to break through the elevator running status monitoring and alarm The linkage with emergency rescue has realized "the first time to grasp the information and quickly implement the rescue", providing guarantee for the safety of residents taking the elevator. By fully grasping the operation and fault status of elevators, accurately determining corporate and supervisory responsibilities, and by publicly releasing information such as elevator fault data, maintenance quality of maintenance units, rescue response speed, and elevator failure reasons, urge maintenance units to take responsibility and make citizens Take the elevator scientifically and treat the elevator failure rationally. The research results have been popularized and applied in Hangzhou, Nanjing, Guangzhou and other cities, realizing the rapid rescue of more than 10,000 people trapped in elevators, providing direct and powerful technology for Hangzhou Quality Supervision Bureau to build the country's first "Elevator Emergency Response Center (96333)" support.