Method for achieving power management through stratified data communication protocol

The invention provides a method for achieving power management through a stratified data communication protocol. The method is applied to a plurality of wireless terminals which comprise at least one first wireless terminal and at least one second wireless terminal. The first wireless terminal at least comprises a display unit and a first data transmit-receive unit, the second wireless terminal at least comprises a processing unit and a second data transmit-receive unit, and wireless data communication is carried out between the first wireless terminal and the second wireless terminal through the first data transmit-receive unit and the second data transmit-receive unit. The method is characterized in that the stratified data communication protocol comprises a real-time hardware layer data communication protocol, an equipment management layer data communication protocol and a system state layer data communication protocol. The wireless terminals support a plurality of communication protocols, are applicable to power management of unit modules, equipment and business application in various types and with different consumptions, can adopt corresponding communication protocols to control the consumption in different time scales and timely manage power supply of a power source.