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Dormancy wake-up method and system

A sleep mode, charging and discharging circuit technology, applied in the sleep wake-up method and system field, can solve the problem that the controller cannot control the working state by itself

Active Publication Date: 2021-03-16
CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, in view of the problem that the traditional controller cannot control the working state by itself, this application provides a sleep wake-up method and system

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  • Dormancy wake-up method and system

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Embodiment Construction

[0054] In order to make the above-mentioned purpose, features and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0055] It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish a...

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Abstract

The invention relates to a sleep awakening method and system. The dormancy awakening system comprises a controller, a comparison circuit and a charging and discharging circuit. The output end of the comparison circuit is connected with the controller. The first input end of the comparison circuit is used for inputting reference voltage. The first potential end of the charging and discharging circuit is connected with the second input end of the comparison circuit and used for outputting the current potential of the charging and discharging circuit to the second input end. The controlled end ofthe charging and discharging circuit is connected with the controller. The controller is used for controlling the charging and discharging circuit to discharge to enable the voltage of the second input end to be smaller than the reference voltage before entering the sleep mode, and is also used for controlling the charging and discharging circuit to charge after entering the sleep mode; the comparison circuit is used for outputting a wake-up signal through the output end when the voltage of the second input end is larger than the reference voltage. The controller flexibly controls the dormancy time and the working state of the controller by controlling the charging and discharging state of the charging and discharging circuit.

Description

technical field [0001] The present application relates to the field of circuit control, in particular to a method and system for waking up from dormancy. Background technique [0002] With the development of Internet of Things technology, wireless sensors are more and more widely used, but the problem of high power consumption has always been the bottleneck restricting the large-scale application of sensors. At present, the working mode of the sensor generally adopts the mode of short-time normal work and long-time sleep interval, so as to reduce power consumption and prolong the use time of the sensor. The power consumption during the sensor sleep period is useless waste, therefore, the power consumption during the sensor sleep period must be reduced as much as possible. [0003] Low-power MCUs currently on the market generally have multiple sleep modes, but for the deepest sleep mode, an external periodic signal is usually used to wake up the MCU, and the wake-up interval...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02
CPCH04W52/0248Y02D30/70
Inventor 李鹏田兵王志明赵继光李立浧刘仲尹旭孙宏棣
Owner CHINA SOUTHERN POWER GRID DIGITAL GRID RES INST CO LTD
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