Core contents of the standard: First, system architecture specification, constructing a four-layer elevator remote monitoring system architecture of "terminal layer - network layer - platform layer - application layer", and clarifying the functional requirements and technical specifications of each layer; Second, comprehensive functional requirements, stipulating the functional requirements of elevator remote monitoring systems such as real-time monitoring, fault alarm, automatic trapped alarm, maintenance management, statistical analysis and remote diagnosis, and clarifying the performance indicators of each function; Third, unified data format and communication protocol, unifying the collection format and transmission standard of elevator operation data, fault data and maintenance data, stipulating the use requirements of common communication protocols such as MQTT and HTTP, and ensuring that systems from different manufacturers can be interconnected; Fourth, data security requirements, clarifying the data security requirements of elevator remote monitoring systems, including data encryption, access control, identity authentication, data backup and recovery, etc., to ensure the confidentiality, integrity and availability of data; Fifth, platform docking requirements, stipulating the docking requirements of elevator remote monitoring systems with elevator smart supervision platforms, property management platforms and emergency rescue platforms to realize data sharing and business collaboration.