Table of Contents - Y.4420 (05/2026) - Framework of Internet of things-based monitoring and management for lifts (elevators)

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Recommendation
4	Abbreviations and acronyms
5	Conventions
6	Overview of IoT-based monitoring and management for lifts
7	Requirements for external control of lifts based on IoT technologies
	7.1	Lift monitoring for external control
	7.2	Lift management for external control
8	Framework of IoT-based monitoring and management for lifts
	8.1	General framework
	8.2	Framework of lift gateway
9	Data models for IoT-based lift monitoring and management
	9.1	Data models for lift monitoring
	9.2	Data model for lift remote control and management
Appendix I – Protocols for IoT-based lift monitoring and management
	I.1	Protocols for lift monitoring and management
	I.2	Protocol structure for lift monitoring and management
Appendix II – Use cases of IoT-based monitoring and management for lifts
	II.1	Remote control of lift operation modes
	II.2	Lift monitoring in smart buildings
	II.3	Autonomous indoor delivery service
Bibliography