Design Of Intelligent Elevator System Based On Internet Of Things Technology

With the development of urbanization,the number of elevators has increased rapidly.At the same time,People are increasingly demanding safe and stable operation of elevators,ride comfort and intelligence.Elevator Internet of Things relies on Internet of Things technology,computer,communication,big data processing technology to achieve scientific management of elevators,and provides practical functions such as fault alarm,trapped people alarm,and intelligent hidden danger diagnosis to ensure safe operation of elevators and solve elevator maintenance.And it also solves the pain points of elevator maintenance and supervision,and provides a technical basis for the realization of smart elevators.At present,there is a large imbalance between maintenance personnel and elevators in the elevator industry.The shortage of personnel makes the elevator maintenance industry unbearable.The accident failure rate and the timely maintenance rate are more and more concerned by the society.The government supervision department proposed not only to realize the after-the-fact fault alarm and emergency rescue of the elevator,but also to pay attention to the early warning of faults and elevator safety hazards,so as to prevent problems before they occur.In the elevator standards that have been issued by the state and various places,relevant requirements have been put forward for the installation and use of the elevator Internet of Things.Elevator Internet of Things is a complete set of elevator information management system,providing a full set of elevator Internet of Things solutions for the entire lift manufacturing unit.The whole lift manufacturing unit can realize the internal information exchange and information sharing of the elevator by means of the elevator Internet of Things platform.On the one hand,it can effectively obtain on-site elevator data,on the other hand,it can also ensure the safety of elevator core data;For the government supervision departments such as the Quality and Technical Supervision Bureau,a unified platform is needed for data processing and unified information processing methods,so that the data has a unified norm.The IOT platform can provide corresponding data interfaces to meet the requirements of local government departments.Therefore,research on elevator Internet of Things technology is particularly important.The elevator Internet of Things developed by this system adopts the cell networking mode,local area network creatively designs a network maintenance mechanism with self-networking and self-recovery functions to improve the online rate of network devices.The distance vector algorithm is used to realize reliable routing.The MESH network architecture is adopted to ensure the stable operation of the terminal equipment.The dual reset mechanism of the local area network ensures that the equipment can re-search for the optimal network link under abnormal conditions.The system designs a seven-step dial-up mechanism to realize the closed-loop detection of the dialing process and improve the online rate of the data transmission unit.The system optimizes the communication protocol,which has the escape mechanism,thus reducing the communication data flow.The system optimizes and improves the algorithm of trapped detection and lift error judging,realizing accurate active alarming,thus ensuring the safety of passengers and reduces the workload of maintenance.At the same time,through the establishment of the fault warning model,the identification of safety hazards such as elevator topping,bottoming and door-opening is realized.Finally,the system has the functions of annual elevator inspection,fault record,maintenance record,evaluation of elevator operation quality,and automatic report generation.The system can well guarantee the safety and quality performance of the elevator,and solve the problem of lack of digitization,intelligence and platform for elevator maintenance and elevator monitoring.Many lift factories and quality supervision organizations have used the system and successfully deployed more than 6,000 terminals in more than 20 provinces and cities nationwide.The stable network,standardized elevator emergency alarm and accurate elevator safety hazard warning function make the elevator Internet of Things system play an active demonstration role for the promotion of the elevator industry Internet of Things,and become an important means to realize smart elevators.