Low-power-consumption access control system based on Internet of Things

The invention is applicable to the technical field of Internet of Things, and provides an Internet of Things-based low-power access control system, which comprises a sleep control module, a pass link management module, an access control single machine control module and a cloud control module, the dormancy control module can control the cloud control module to enter a dormancy mode after the preset response period is finished; the pass link management module is used for establishing a green pass link, a local verification link and a cloud verification link according to pass types; the access control single machine control module can respond to a pulse signal transmitted by the green pass link to generate a first control instruction, receive an identity verification pass signal transmitted by the local verification link to generate a second control instruction, and occupy the cloud verification link to transmit a pass request; according to the invention, communication or standby of related links in the system