Energy management method and system for lightweight operating system of Internet of Things terminal

Abstract

The invention relates to an energy management method and system for a lightweight operating system of an Internet of Things terminal, and the method comprises the steps of enabling a Tickless mechanism when the system executes an idle task, detecting the state of a heterogeneous energy taking module through a BMS module, switching the terminal to a heterogeneous energy taking module for power supply when the energy stored by the heterogeneous energy taking module meets the working demands of a terminal sleep mode, and enabling the terminal to enter a sleep working mode; enabling the BMS module to continuously detect the voltage of the heterogeneous energy taking module, and when the set sleep time is up or the heterogeneous energy taking module is abnormal in power supply, switching the power supply of the built-in battery back. According to the method and the system provided by the invention, a task scheduling management mechanism of a lightweight operating system of the Internet of Things terminal is combined, and intelligent switching of power supply modes is realized on the Internet of Things terminal which is simultaneously configured with a built-in battery and a heterogeneous energy-taking power supply part; therefore, mutual conflict and low efficiency possibly caused by independent regulation and control of the power supply management modules by various terminal application tasks can be effectively avoided, the energy supply duration of a built-in battery is prolonged as much as possible, and the battery replacement and maintenance cost is reduced.

Description

technical field [0001] The invention relates to the field of energy management interfaces of Internet of Things terminals, in particular to an energy management method and system suitable for lightweight operating systems of Internet of Things terminals. Background technique [0002] The Internet of Things terminal is the forefront of the composition of the Internet of Things application system. With the continuous development of application fields, more and more smart city application systems need to deploy IoT terminals in different livelihood fields such as environmental protection, transportation, and security. IoT terminals widely deployed in these application systems need to process slow-changing physical quantity data (such as ambient temperature / humidity, water quality, air quality parameters, soil composition, stress parameters of urban bridge facilities, water pressure of fire hydrants, etc.), and usually use intermittent working mode , that is, it will sleep for ...

AI Technical Summary

Problems solved by technology

Although this energy supply method cannot meet the energy consumption requirements of most IoT terminal data processing modes, it can basically meet the energy supply requirements in sleep mode

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